METHOD OF MACHINING SCREW

A method of machining a screw is provided that is capable of preventing formation of a protruding section at a thread tip section. A thread is formed by cutting on a cylindrical body, and a surface of the thread is plastically deformed by rolling. Because of the cutting, a width between-side surfaces of a thread tip section is in a narrowed state as compared to a normal width. This width is narrowed toward a tip of the thread while a thread body section has a width expanded as compared to a normal width. Consequently, the side surfaces are formed to bulge by an excess thickness portion as compared to normal side surfaces. The rolling plastically deforms both side surfaces to cause the excess thickness portion to plastically flow toward the side surfaces. 1. A method of machining a screw including forming a thread on a work material by cutting and subsequently plastically deforming a surface of the thread by rolling , whereinbecause of the cutting, a width between both side surfaces of a tip section of the thread is in a narrowed state as compared to a width between both normal side surfaces of the thread tip section and is gradually narrowed toward a tip of the thread while a body section closer to a base end as compared to the tip section of the thread has a width between both side surfaces of the thread body section expanded as compared to a width between both normal side surfaces of the thread body section so that each of the side surfaces of the thread body section is formed to bulge by an excess thickness portion as compared to the normal side surfaces of the thread body section, and whereinthe rolling plastically deforms the both side surfaces of the thread body section to cause the excess thickness portion to plastically flow toward each of the side surfaces of the thread tip section.2. The method of machining a screw according to claim 1 , whereinthe cutting forms the thread tip section into a shape tapered toward a tip thereof.3. The method of machining a ...

Drill Bit and Production Method

A drill bit has, along a drill bit axis, a drilling head, a multi-start helix made of two or more helical coils, and an insertion end. The helix has a helix slope and a pitch in a delivery region. In an outlet region of the helix, the outlet region being directed towards the insertion end, the helical coils merge continuously, within a first portion, from an orientation in alignment with the helix slope into an orientation parallel to the drill bit axis. A length of the first portion is at least one quarter of the pitch of the delivery region. The helical coils, in a second portion, are oriented parallel to the drill bit axis. 112.-. (canceled)13. A drill bit , comprising:a drilling head, a helix made of two or more helical coils, and an insertion end disposed along a drill bit axis, wherein the helix, in a delivery region, has a slope and a pitch;wherein in an outlet region of the helix, the outlet region is directed toward the insertion end and the two or more helical coils merge continuously, within a first portion of the outlet region, from an orientation in alignment with the slope into an orientation parallel to the drill bit axis;wherein a length of the first portion is at least one quarter of the pitch;wherein the two or more helical coils are, in a second portion of the outlet region, oriented parallel to the drill-bit axis.14. The drill bit according to claim 13 , wherein the delivery region and the first portion have a cross-section that is constant.15. The drill bit according to claim 13 , wherein helical grooves claim 13 , defined by respectively adjacent helical coils of the two or more helical coils claim 13 , in the delivery region and the first portion have a constant depth.16. The drill bit according to claim 13 , wherein in the first portion claim 13 , the slope decreases with respect to the drill bit axis at a rate of between 0.25 degrees and 2 degrees for each degree in a direction of rotation of the helix.17. The drill bit according to claim 16 ...

Screw Conveyors, Augers, and Flighting for Use Therein

In a continuous screw conveyor or auger, the rotatable screw member comprises a helical radial blade (“flighting”) carried on a central driving shaft. The flighting is formed by providing a raw metal strip, generally of uniform thickness, performing optional compression and flaring of the metal strip, and rolling the metal strip between a pair of opposed, preferably offset, conical rolls. In contrast to prior art rolls, the present invention provides on at least one of those rolls a stepped conical rolling surface formed so as to exert a lesser and reducing rolling pressure on an outer portion of the helical blade being formed, thereby to produce a blade in which the outer portion tapers to a thickness which is preferably 125% of the thickness of the ingoing material to provide a greater wear resistant surface, a longer working life to the flighting and improved output performance. 1. A method of producing continuous rolled flighting , the flighting being suitable for use in screw conveyors and augers , including:forming a continuous helical blade having radially spaced inner and outer helical edges from an elongated metal strip having a first length, a first height and a first thickness, wherein the first length of the strip is greater than its first height and the first height of the strip is greater than its first thickness;wherein said continuous helical blade is formed integrally by (i) an inner helical portion which extends radially from the inner helical edge to a predetermined intermediate radius portion and (ii) an outer helical portion which extends from the predetermined intermediate radius portion to the outer helical edge, the transverse thickness of the continuous helical blade in the inner helical portion decreasing gradually from a maximum value to a minimum value at the intermediate radius portion, and the thickness of the continuous helical blade in the outer helical portion being greater than the first thickness of the metal strip forming the ...

Twist drill and production method

A method for producing a twist drill has the following steps. A blank is shaped to form a semi-finished product. The semi-finished product is formed from a core, coaxial with the drill axis, having a radius and a number of webs, arranged on the core, having a height. The semi-finished product has a constant cross section along the drill axis. The webs have a first portion which adjoins the core and in which a width of the web remains constant or decreases in the circumferential direction with increasing radial distance from the drill axis. The webs have a second portion which adjoins the first portion and in which the width of the web increases in the circumferential direction with increasing radial distance from the drill axis. The webs of the semi-finished product are shaped into helical segments using a plurality of rolling tools that annularly enclose the semi-finished product and roll on the webs along the drill axis. The rolling tools have teeth that are inclined with respect to the drill axis. A height of the helical segments is less than the height the webs. Helical segments formed from adjacent webs are in contact with one another in a closing fold. The invention also relates to a twist drill.

Головка дл накатывани резьбы на метчиках

Method of reducing effective diameter of female screw, and rolled thread tap for said reduction

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Materials supply device of rolling machine

본 발명은 전조 로링기의 자재 공급장치에 관한 것으로서, 자재의 로링 생산성이 향상되도록 함과 아울러 안전사고가 발생하지 않도록 한 것이다. The present invention relates to a material supply apparatus of a rolling roll rolling machine, to improve the rolling productivity of the material and to prevent a safety accident from occurring. 본 발명은 본체(10)와, 상기 본체(10)의 후미에 설치된 구동수단에 의해서 회전운동함과 아울러 2개의 전조 고정 다이(11) 및 1개의 전조 이동 다이(12)와, 상기 본체(10)의 일측부에 설치되어 전원 인가시 진동기능을 수행함과 아울러 상부와 연결된 가이드(14) 출구가 전조 고정/이동 다이의 로링가공지점 전방에 위치되는 자재공급체(13)와, 상기 자재공급체(13)의 가이드(14) 출구에 위치되는 자재(15)를 로링가공지점(16)으로 위치시켜 로링할 수 있게 본체(10) 전방의 가이드(14) 측부에 설치되는 공급 액추에이터(17)와, 상기 자재공급체(13)와 공급 액추에이터(17) 및 전조 이동 다이(12)를 선택적으로 작동시키는 제어부(18)로 이루어진 전조 로링기에 있어서, 상기 자재공급체(13)의 가이드(14) 소정부에 공급센서(20)를 설치함과 아울러 상기 공급센서(20)를 제어부(18)와 연결시킴으로써 가이드(14)상에 자재(15)의 존재여부가 판별되게 하고, 상기 공급 액추에이터(17)의 로드(21) 전후진 위치를 파악할 수 있도록 공급 액추에이터(17)에 전진센서(22)와 후진센서(23)를 설치하여 제어부(18)와 연결시키는 것이다. The present invention rotates by the main body 10, the drive means installed on the rear of the main body 10, the two rolling fixed die 11 and one rolling movement die 12, and the main body 10 It is installed on one side of the material supply 13 and the vibration of the power supply and the guide 14 connected to the top is located in front of the rolling point of the rolling fixed / moving die and the material supply ( A supply actuator 17 installed on the side of the guide 14 in front of the main body 10 so that the material 15 positioned at the exit of the guide 14 of the 13) may be positioned at the rolling processing point 16 and rolled; In the roll rolling machine comprising a control unit 18 for selectively operating the material supply body 13, the supply actuator 17, and the rolling movement die 12, a predetermined portion of the guide 14 of the material supply body 13 The supply sensor 20 in addition to the supply sensor 20 in addition to the control unit 18 By making the connection, the presence of the material 15 on the guide 14 is determined, and the forward sensor 22 and the forward sensor 22 ...

Grooving method of tube surface

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

The threed rolling apparatus

본 고안은 환봉에 나사산이 형성되도록 하는 나사산 전조장치에 관한 것으로서, 더욱 상세하게는 본인의 선 등록 실용의 구성의 개량하여 장치의 구조가 대폭적으로 단순화되도록 함으로써 고장의 발생률 감소와 제조공정의 단축 및 제조원가의 절감을 기할 수 있으며 또한 장치의 크기를 소형화하는 것을 가능토록 하여 점유면적의 축소와 설치장소의 선정에 어려움이 없어 취급에 편의성을 기할 수 있는 환봉의 나사산 전조장치에 관한 것이다. The present invention relates to a thread rolling device for forming a thread on a round bar, and more particularly, to improve the structure of the pre-registration of the user and to greatly simplify the structure of the device, thereby reducing the incidence of failure and shortening the manufacturing process. The present invention relates to a thread rolling device for round rods that can reduce manufacturing cost and reduce the size of the device, thereby reducing the occupied area and selecting a place for installation.

Cutting tool with enhanced chip evacuation capability and method of making same

Apparatus for making spiral drills

The device is provided for the rolling or pressing of spiral drills from a preheated cylindrical blank (21) by means of squint profiled rollers (15) concentrically distributed at the periphery of the blank, delimiting a calibrated opening and driven by a common motor through a conical wheel gear and a cylindrical wheel gear. In order to provide a drive with the smallest posible play enabling a tool adjustment required by the wear without increasing the drive play, there is arranged, in the transmission of the motor power to the profile rollers (15) to arrange the conical wheel gear (9, 10) on the drive side behind the motor and the cylindrical wheel gear (11, 12, 13) for each profile roller (15) on the output side.

Improved screw conveyors, augers, and flighting for use therein

An apparatus for producing continuous rolled flighting suitable for use in screw conveyors and augers. The flighting includes a continuous helical blade having radially spaced inner and outer helical edges. The continuous helical blade is formed integrally by (i) an inner helical portion which extends radially from the inner helical edge to a predetermined intermediate radius, (ii) an intermediate helical portion which extends radially from the predetermined intermediate radius portion and (iii) an outer helical portion, the transverse thickness of the continuous helical blade in the inner helical portion decreasing gradually from a maximum value at the outer edge to a minimum value at the intermediate helical portion, and the thickness of the continuous helical blade in the outer helical portion tapering outwardly to at least 150% of the minimum thickness of the flighting between the inner and outer edge of the helical blade.

Thread rolling mill roll drive - adjustable for roll profile synchronising during rolling

The drive comprises two gear wheels (gear ratio 1:1) which are fixed to the shafts of two thread rolling rolls (of the same dia. and of periodic profile) and which mesh with two intermeshing gear wheels which may have the same size and can be pivoted together about the axes of the first gear wheels. The construction is simpler than drives contg. cardan shafts, and the drive can be used with various roll dias. and roll gaps without changing the gear sets.

Patent FR2232373B3

PROCESS FOR IMPROVING THE HEAT TRANSMISSION CAPACITY OF A METAL SURFACE

Machine for cold rolling of propellers for worm conveyors

Spiral screw prodn by folding

Process for the fabrication of spiral screws with any type of spiral in which a number of folding lines are marked on a piece of cut sheet by means of a folder so that they form a calculated angle between each other of which one side is a tangent to the winding radius. The bending lines and the angle of bending give the sheet the desired screw step.

Screw machining method

　転造加工を行うとしても、ねじ山先端部に突出部が形成されることを防止できるねじの加工方法を提供する。切削加工により円筒体内周面(1a)にねじ山(2A)を形成し、そのねじ山(2A)表面を転造加工により塑性変形させる。切削加工では、ねじ山先端部(2AT)の両側面(2ATs)間の幅(Lt)を正規の幅(Lts)よりも狭めた状態でねじ山(2A)先端に向うに従って次第に狭め、ねじ山本体部(2AM)では、両側面(2AMs)間の幅(Lm)を正規の幅(Lms)よりも拡張して、ねじ山本体部(2AM)の各側面(2AMs)を、正規の各側面(2AMss)よりも余肉部分(4)だけ膨らむものに形成する。転造加工では、ねじ山本体部(2AM)の両側面(2AMs)を塑性変形させて、余肉部分(4)をねじ山先端部(2AT)の各側面(2ATs)に向けてそれぞれ塑性流動させる。

Taps without splines for tapping metal

Screw conveyors, augers and flighting for use therein

In a continuous screw conveyor or auger, the rotat-able screw member (12) comprises a helical radial blade (28) (known as "flighting") which is preferably carried on a central driving shaft (26). The flighting (28) is formed by rolling a rectangular metal strip of uniform thickness be-tween a pair of opposed, preferably offset, conical rolls (56, 58). In contrast to prior art rolls which have similar unstepped conical rolling surfaces, and produce a helical blade of which the radial thickness reduce progressively from the inner helical edge (30) of the blade to the outer helical edge (32), the present invention provides on at least one of those rolls (58) a stepped conical rolling sur-face (94) formed so as to exert less rolling pressure on an outer portion of the helical blade (28) being formed, there-by to produce a blade in which the outer portion is of a thickness (preferably uniform) which is no less than and preferably greater than that of an inner part of the blade lying immediately radially inwards thereof.

Method of roll forming a skip threading tap

A method of roll forming a skip threading tap by plastic deformation of metal.

Screw-thread swaging tool

Improved screw conveyors, augers, and flighting for use therein

In a continuous screw conveyor or auger, the rotatable screw member comprises a helical radial blade ("flighting") carried on a central driving shaft. The flighting is formed by providing a raw metal strip, generally of uniform thickness, performing optional compression and flaring of the metal strip, and rolling the metal strip between a pair of opposed, preferably offset, conical rolls. In contrast to prior art rolls, the present invention provides on at least one of those rolls a stepped conical rolling surface formed so as to exert a lesser and reducing rolling pressure on an outer portion of the helical blade being formed, thereby to produce a blade in which the outer portion tapers to a thickness which is preferably 125% of the thickness of the ingoing material to provide a greater wear resistant surface, a longer working life to the flighting and improved output performance.

Moving type automatic reinforcing steel bar dryer

본 발명은 건설현장 등에서 너트형 연결금구를 이용하여 철근을 연결할 수 있도록 철근의 단부에 나사를 성형하는 이동식 자동 철근 전조기에 관한 것으로서, 나사를 형성하는 작업이 간편하게 신속하게 이루어지도록 한 이동식 자동 철근 전조기를 제공코자 한 것이다. 즉, 본 발명은 기체(3) 상측에 설치한 작업대(4)와, 상기 작업대(4) 전·후측에 세워진 지지대(6) 및 이의 좌·우측에 설치되는 한 쌍의 가이드 바(5)와, 상기 가이드 바(5)의 후방에 끼워진 모터용 슬라이드부재(11)에 결합된 모터설치판(10) 및 모터설치판(10)에 고정 설치된 정역 구동되는 모터(12)와, 상기 모터(12)의 모터축(13) 선단에 커플링(15)으로 연결되는 구동축(14) 및 커플링(15)을 보호하도록 모터설치판(10)에 결합한 커플링 하우징(16)과, 상기 커플링 하우징(16)의 전방으로 가이드 바(5)에 끼워진 하우징용 슬라이드부재(21)에 결합된 툴 안치판(20) 및 툴 안치판(20)에 고정한 툴하우징(22)과, 상기 툴하우징(22)에 결합된 상태에서 툴하우징(22) 및 커플링 하우징(16)과 볼트로 조립되는 커버(23)에 결합되어 있는 베어링(24)에 의해 지지되도록 구동축(14)에 일체 형성한 전조툴 고정판(17)과, 상기 커버(23)와 작업대(4) 사이에 설치한 툴이송용 실린더(30)와, 철근(200)이 내입되는 공간(41)이 형성되게 120도 각도로 배치되는 3개의 나사성형롤러(42)와, 나사성형롤러(42)에 결합된 축(43)의 양측으로 결합되는 2개의 롤러고정판(44)(45)으로 구성되며, 일측 롤러고정판(44)은 상기 전조툴 고정판(17)에 볼트로 고정되고, 타측 롤러고정판(45)에는 중심에 구멍(46a)이 형성된 스플라인축(46)과 일체로 형성된 축 고정판(46b)을 고정링(49)으로 가압하여 볼트로 고정한 전조툴(40)과, 상기 스플라인축(46)에 결합되는 스플라인 구멍(48a)이 형성되며 툴하우징(22)에 결합되어 있는 베어링(24)으로 지지되는 선삭툴 고정판(47)이 형성된 제2구동축과, 선삭툴 고정판(47)에 볼트로 고정되는 도넛형의 내측커버(51) 및 내측커버(51)의 전방으로 배치되며 내부에 사각설치공간(53)이 형성되는 선삭툴 본체(52)와, 내측커버(51) 및 선삭툴 본체(52)가 선삭툴 고정판(47)과 함께 회전하도록 내측커버(51)의 외주연에 걸림되게 툴하우징(22)에 볼트로 고정되는 고정링(54)과, 선삭툴 본체(52)의 내측 사각설치공간(53)에 설치되는 팁(55a)이 결합된 툴(55)과, 선삭툴 본체(52)에 볼트로 고정되는 도넛형 외측커버(56)로 구성되는 선삭툴(50)과, 상기 작업대(4)의 전방에 설치되며 레일(91)을 따라서 움직이도록 <형의 요철형 가압부(93)가 형성된 2개의 클램프(92)를 서로 마주보게 설치하고, 각 클램프(92)의 외측에는 작업대(4)에 고정된 클램프 가압용 실린더(94)의 실린더로드(95)를 연결하여 구동되게 한 클램핑부(90)와, 상기 모터설치판(10) 아래쪽에 설치한 노브(100) 및 노브(100)에 대응하도록 작업대(4)에 설치한 스타트 스위치(101) 및 엔드 스위치(103)와, 작업대(4) 아래쪽에 설치한 유압장치(110)와, 상기 기체(3)에 설치되며 모터(12), 스타트 스위치(101), 엔드 스위치(103) 및 유압장치(110)를 제어하는 제어기(130)를 포함하는 것으로서, 선삭툴(50) 및 전조툴(40)에 의해서 철근(200) 단부의 선삭 및 나사 전조가 연속적으로 이루어지므로 나사(210) 가공을 신속하게 행할 수 있고, 나사 가공에 따른 비용을 획기적으로 절감할 수 있는 것이다. 이동식 자동 철근 전조기, 슬라이드부재, 전조툴, 선삭툴, 클램핑수단, 클램핑부 The present invention relates to a mobile automatic rebar rolling machine for forming a screw on the end of the reinforcing bar so as to connect the ...

A kind of anti-rotation rolling device that fractures of helical baffles

本发明涉及一种螺旋折流板的防折断旋轧装置，包括驱动部分，变速部分和旋轧部分，所述旋轧部分包括上轧辊、下轧辊、上导向旋轴、下导向旋轴、升降传动轴、导向传动轴承组合件、导向传力机构组合件和分度定位板；所述分度定位板包括左右两部分，所述下轧辊两端分别可沿其轴向滑动的连接在所述分度定位板左右两部分上；所述升降传动轴亦包括左右两部分，所述上轧辊的两端分别可沿垂直其轴向的方向滑动的连接在所述升降传动轴的左右两部分上。该旋轧装置的下轧辊可沿其轴向滑动，上轧辊可沿垂直其轴向的方向滑动，通过上轧辊和下轧辊的相对滑动能顺应坯件在旋轧成螺旋折流板的一个圆弧旋转过程中的各种形状变化趋势，有效的防止坯件被旋轧折断。

Process for the manufacture of rolled taps.

Rolling mill for making twist drills

Rolling mill consists of a stand with forming wheels positioned to form the desired spiral shape; a charging apparatus with periodic advance of the blanks; an inductor for heating the blanks and front and back guides for orienting and centring the blanks in the mill. The front guide is in the form of a non-metallic socket with the same dimensions as those of the blank and is disposed in the inductor next to the charging apparatus. The rear guide in the form of a socket has a shape corresponding to that of the drill shank and can rotate and move backwards and forwards along the rolling axis and pass between the rolling wheels to receive the blank from the front guide and executes a spiral movement with the blank during rolling.

A thread rolling method for titanium alloys

본 발명에 의한 타이타늄합금 소재의 나사 형성 방법은, 타이타늄합금 소재의 표면을 숏트 블라스팅하는 표면처리단계와, 숏트 블라스팅된 타이타늄합금 소재를 탈지제로 탈지하는 탈지단계와, 탈지된 타이타늄합금 소재를 수세하는 수세단계와, 수세된 타이타늄합금 소재의 표면을 윤활처리하는 윤활처리단계와, 윤활제가 침적된 타이타늄 합금 소재를 건조하는 건조단계와, 건조된 타이타늄합금 소재에 냉간 전조 공정을 실시하여 나사를 형성하는 전조단계로 이루어지는 것을 특징으로 한다.

Process and machine to roll tap drills

Twist drill and production method

A method for producing a twist drill 1 has the following steps. A blank 27 is shaped to form a semi-finished product 34. The semi-finished product 34 is formed from a core 38, coaxial with the drill axis 2, having a radius 51 and a number of webs 39, arranged on the core 38, having a height 40. The semi-finished product 34 has a constant cross section along the drill axis 2. The webs 39 have a first portion 42 which adjoins the core 38 and in which a width 44 of the web 39 remains constant or decreases in the circumferential direction 11 with increasing radial distance from the drill axis 2. The webs 39 have a second portion 43 which adjoins the first portion 42 and in which the width 44 of the web increases in the circumferential direction 11 with increasing radial distance from the drill axis 2. The webs 39 of the semi-finished product are shaped into helical segments using a plurality of rolling tools that annularly enclose the semi-finished product 34 and roll on the webs 39 along the drill axis 2. The rolling tools 31 have teeth 48 that are inclined with respect to the drill axis 2. A height 20 of the helical segments is less than the height 40 of the webs 39. Helical segments formed from adjacent webs 39 are in contact with one another in a closing fold 26. The invention also relates to a twist drill.

Method of machining screw

전조 가공을 행한다고 해도, 나사산 선단부에 돌출부가 형성되는 것을 방지할 수 있는 나사의 가공 방법을 제공한다. 절삭 가공에 의해 원통체 내주면(1a)에 나사산(2A)을 형성하고, 그 나사산(2A) 표면을 전조 가공에 의해 소성 변형시킨다. 절삭 가공에서는, 나사산 선단부(2AT)의 양측면(2ATs) 간의 폭(Lt)을 정규의 폭(Lts)보다도 좁힌 상태에서 나사산(2A) 선단을 향함에 따라 점차로 좁히고, 나사산 본체부(2AM)에서는, 양측면(2AMs) 간의 폭(Lm)을 정규의 폭(Lms)보다도 확장하여, 나사산 본체부(2AM)의 각 측면(2AMs)을 정규의 각 측면(2AMss)보다도 두께 여유 부분(4)만큼 불룩해진 것으로 형성한다. 전조 가공에서는, 나사산 본체부(2AM)의 양측면(2AMs)을 소성 변형시켜, 두께 여유 부분(4)을 나사산 선단부(2AT)의 각 측면(2ATs)을 향하여 각각 소성 유동시킨다. There is provided a method of machining a screw capable of preventing a projecting portion from being formed in a threaded tip portion even when a rolling process is performed. A thread 2A is formed on the inner circumferential surface 1a of the cylindrical body by cutting, and the surface of the thread 2A is plastically deformed by rolling. In the cutting process, the width Lt between both side surfaces 2ATs of the threaded tip portion 2AT is gradually narrowed toward the tip of the threaded portion 2A in a state in which the width Lt is narrower than the normal width Lts. In the threaded portion 2AM, The width Lm between the both side surfaces 2AMs is extended beyond the normal width Lms so that the side surfaces 2AMs of the thread main body portion 2AM are bulged by the thickness margin portion 4 more than the normal side surfaces 2AMss . In the rolling process, both side surfaces 2AMs of the thread main body 2AM are plastically deformed so that the thickness margin portion 4 is subjected to plastic flow toward the respective side surfaces 2ATs of the threaded tip portion 2AT.

Process for producing a multi-blade tool

The invention relates to a process for producing a multi-blade tool of high-tensile tool steel and the tool produced thereby. The invention comprises the steps: a section with a cross section corresponding to that of the multi-blade tool to be produced is made by hot extrusion; the section is stranded at a temperature above room temperature but below the exit temperature of the extrusion.

Thread swaging tap

Twist drill and production method

The twist drill ( 1 ) has a drilling head ( 3 ), a continuous two-flute, three-flute to six-flute helix ( 4 ) and an insertion end ( 5 ) that are arranged consecutively on a drill axis ( 2 ). The helix ( 4 ) has a radial outer dimension ( 18 ) that varies periodically two, three to six times per revolution around the drill axis ( 2 ). The invention also relates to a production method for such a drill.

Drill and method of producing the same

The production of fluted drills from tubular cylindrical blanks preferably by cold-rolling so as to press at least one spiral chip flute into the blank by means of rotating pressure rollers and thereby displacing the material of the part of the blank into which the flute is impressed so as either to increase the length of the drill over the length of the original blank or to increase the diameter of the fluted part of the drill over the original diameter of the blank the untreated end portion of which remains cylindrical for clamping the drill in a tool holder. Although the rolling operation for producing the flutes also varies the shape of the bore in the blank, this bore will not be closed and its cross-sectional size will remain substantially the same as that of the bore in the blank and it may be used as a channel for passing a coolant to the cutting end of the drill which may consist of a suitably shaped plate of tempered steel or the like which may be hard-soldered to the end of the drill.

Manufacturing method of screw propulsor

FIELD: machine building. SUBSTANCE: invention relates to production of screw-type propulsor. A screw ridge is made on the cylindrical surface of the screw propulsor oriented to the bearing plane of the propulsor. A screw-type propulsor is made in the form of a semi-cylinder, on the cylindrical surface of which there are screw grooves embedded into a half-cylinder, into which caterpillar tracks are laid. Drive is mounted on longitudinal plane of semi-cylinder passing through its axis of symmetry. EFFECT: as a result, manufacturing technology of screw propellers is simplified. 1 cl, 3 dwg

Method and apparatus for profiling solid cylindrical parts by milling

Screw conveyors, augers and flighting for use therein

In a continuous screw conveyor or auger, the rotatable screw member (12) comprises a helical radial blade (28) (known as 'flighting') which is preferably carried on a central driving shaft (26). The flighting (28) is formed by rolling a rectangular metal strip of uniform thickness between a pair of opposed, preferably offset, conical rolls (56, 58). In contrast to prior art rolls which have similar unstepped conical rolling surfaces, and produce a helical blade of which the radial thickness reduce progressively from the inner helical edge (30) of the blade to the outer helical edge (32), the present invention provides on at least one of those rolls (58) a stepped conical rolling surface (94) formed so as to exert less rolling pressure on an outer portion of the helical blade (28) being formed, thereby to produce a blade in which the outer portion is of a thickness (preferably uniform) which is no less than and preferably greater than that of an inner part of the blade lying immediately radially inwards thereof.

Screw conveyors, augers and flighting for use therein.

In a continuous screw conveyor or auger, the rotatable screw member (12) comprises a helical radial blade (28) (known as "flighting") which is preferably carried on a central driving shaft (26). The flighting (28) is formed by rolling a rectangular metal strip of uniform thickness between a pair of opposed, preferably offset, conical rolls (56, 58). In contrast to prior art rolls which have similar unstepped conical rolling surfaces, and produce a helical blade of which the radial thickness reduce progressively from the inner helical edge (30) of the blade to the outer helical edge (32), the present invention provides on at least one of those rolls (58) a stepped conical rolling surface (94) formed so as to exert less rolling pressure on an outer portion of the helical blade (28) being formed, thereby to produce a blade in which the outer portion is of a thickness (preferably uniform) which is no less than and preferably greater than that of an inner part of the blade lying immediately radially inwards thereof.

Bed knife and method of forming

A method of manufacturing a bed knife for a reel mower. The method includes cold roll forming spring steel, flattening and straightening the spring steel, shaping the spring steel through a plurality of rollers to impart a bending force upon the spring steel. to define a mounting portion and an upturned portion, and grinding a portion of the upturned portion to form a cutting edge.

twist drill

Twist drill and production method

A method for producing a twist drill 1 has the following steps. A blank 27 is shaped to form a semi-finished product 34. The semi-finished product 34 is formed from a core 38, coaxial with the drill axis 2, having a radius 51 and a number of webs 39, arranged on the core 38, having a height 40. The semi-finished product 34 has a constant cross section along the drill axis 2. The webs 39 have a first portion 42 which adjoins the core 38 and in which a width 44 of the web 39 remains constant or decreases in the circumferential direction 11 with increasing radial distance from the drill axis 2. The webs 39 have a second portion 43 which adjoins the first portion 42 and in which the width 44 of the web increases in the circumferential direction 11 with increasing radial distance from the drill axis 2. The webs 39 of the semi-finished product are shaped into helical segments using a plurality of rolling tools that annularly enclose the semi-finished product 34 and roll on the webs 39 along the drill axis 2. The rolling tools 31 have teeth 48 that are inclined with respect to the drill axis 2. A height 20 of the helical segments is less than the height 40 of the webs 39. Helical segments formed from adjacent webs 39 are in contact with one another in a closing fold 26. The invention also relates to a twist drill.

The interrupted thread tap method for roll forming

本发明属于丝锥滚轧成型方法，利用金属材料的塑性变形，用跳牙螺纹构成的滚丝轮，将丝锥坯料一次冷轧成型为跳牙螺钉。再经开沟槽后成为跳牙丝锥。该滚轧成型方法与目前采用的磨削法相比较，加工效率提高了180倍。

Drill bit - roll forging process

Drill bit roll forging apparatus, a method employing such apparatus, and a drill bit so formed, for roll forging a drill bit having two opposed helical flutes, said apparatus comprising: a) two forging wheels (30) disposed opposite one another and adapted to form the flutes (4,6) and whose axes lie in first and second substantially parallel wheel axis planes (60); wherein b) a blank (22) is adapted to be disposed between the wheels on a blank axis (20) parallel said wheel axis planes; c) a blank plane (20a) contains said blank axis and is perpendicular said wheel axis planes; d) the wheel axes are inclined (α) in their respective wheel axis planes with respect to the blank plane and on opposite sides thereto and whereby the helix angle of the drill bit is determined; e) the wheels have a spiral circumference (34a) sufficient to form a web between said flutes which tapers by at least 50% from a shank end of said flutes to a working end of the drill bit; f) the wheels have an asymmetric edge profile having a "centre of spread", wherein each centre of spread moves transversely with respect to the respective wheel axis as each wheel rotates from a start position to an end position; and g) said wheel axes are positioned in said wheel axis planes such that said centres of spread of the wheels remain one on either side of said blank plane during rotation of the wheels from said start position to said end position. A drill bit (1) has two opposed helical flutes and a web between said flutes which tapers by at least 50% from a shank end of said flutes to a working end of the drill bit, wherein the drill bit is roll formed from a blank, wherein the cross-section of the drill bit changes from its shank end to its working tip, such cross-section comprising quadrants defined by a diameter of the section from a front cutting lip of one flute to the corresponding cutting lip of the other, each flute primarily occupying opposing flute quadrants, wherein such cross-section ...

Patent IN144415B

Patent FR2282615B1

Thread rolling device

본 발명은, 원통형 나선커터의 외측에 일체로 형성된 지지체와, 상기 지지체에 접촉되어 원통형 나선커터를 레일에서 진퇴시키는 캠과, 상기 원통형 나선커터의 전방에 형성된 블럭체에 일단이 결착되고 상기 블럭체의 일측에 형성된 돌출편에 타단이 결착된 압축스프링을 포함하여 이루어지는 수나사산 전조장치에 관한 것으로, 회전축에 캠을 연결하여 캠이 회전함에 따라 가공물이 자동으로 하강될 수 있도록 함으로써 수작업이 대폭 감소될 수 있다.

Device for rolling an eccentric rotational component, rolling machine, method, and eccentric rotational component

The invention relates to a tool (A) for rolling an eccentric rotational component (B) having an eccentric portion, in particular an eccentric worm shaft, wherein the tool (A) has a rotational device (R) having a rolling device (410), by means of which the surface edge zone of the eccentric rotational component (B) is strengthened in order to increase the service life thereof. In an embodiment example, a cutting process is performed before the rolling process.

Screw conveyors, augers and flighting for use therein

In a continuous screw conveyor or auger, the rotat-able screw member (12) comprises a helical radial blade (28) (known as "flighting") which is preferably carried on a central driving shaft (26). The flighting (28) is formed by rolling a rectangular metal strip of uniform thickness be-tween a pair of opposed, preferably offset, conical rolls (56, 58). In contrast to prior art rolls which have similar unstepped conical rolling surfaces, and produce a helical blade of which the radial thickness reduce progressively from the inner helical edge (30) of the blade to the outer helical edge (32), the present invention provides on at least one of those rolls (58) a stepped conical rolling sur-face (94) formed so as to exert less rolling pressure on an outer portion of the helical blade (28) being formed, there-by to produce a blade in which the outer portion is of a thickness (preferably uniform) which is no less than and preferably greater than that of an inner part of the blade lying immediately radially inwards thereof.

Patent JPH021614B2

Producing continuous helical flighting for screw conveyors

Method of machining screw

A method of machining a screw is provided that is capable of preventing formation of a protruding section at a thread tip section. A thread is formed by cutting on a cylindrical body, and a surface of the thread is plastically deformed by rolling. Because of the cutting, a width between-side surfaces of a thread tip section is in a narrowed state as compared to a normal width. This width is narrowed toward a tip of the thread while a thread body section has a width expanded as compared to a normal width. Consequently, the side surfaces are formed to bulge by an excess thickness portion as compared to normal side surfaces. The rolling plastically deforms both side surfaces to cause the excess thickness portion to plastically flow toward the side surfaces.

Method and apparatus for producing a circular cylindrical body comprising a workable mass and having internal helical recesses

본 발명은 작업가능한 질량체를 포함하는 원통형 본체(10)로서, 본체의 내부에서 연장하는 적어도 하나의 나선형 리세스를 갖는 원통형 본체를 제조하는 방법에 관한 것이다. 본체(10)는 초기에 예를 들어 압출에 의하여 직선형 내부 리세스와 함께 제조된다. 그후에 본체(10)는 규정된 길이로 절단된다. 길이로 절단된 본체(10)는 다음에 지지수단(16)상에서 그 길이 전체가 지지되어 있는 동안에 마찰면 구조체(23)에 의하여 롤링 공정을 받는다. 롤링 공정은 여러 단계들로 실행되는데, 제1 회전축(25)을 사용하여 롤링운동이 제1 단계에서 실시되고, 상기 제1회전축과 다른 제2 회전축을 사용하여 롤링운동이 제2 단계에서 실시된다. 또한 본 발명은 상기 방법을 수행하기 위한 장치에 관한 것이다. The present invention relates to a cylindrical body (10) comprising a workable mass, the method being for producing a cylindrical body having at least one helical recess extending inside the body. The body 10 is initially manufactured with a linear internal recess, for example by extrusion. Thereafter, the main body 10 is cut to a prescribed length. The body 10 cut to length is then subjected to a rolling process by the friction surface structure 23 while the entire length thereof is supported on the support means 16. The rolling process is carried out in several steps, in which a rolling motion is carried out in a first step using a first rotation axis 25 and a rolling motion is carried out in a second step using a second rotation axis different from the first rotation axis . The invention also relates to an apparatus for carrying out the method.

Milling cutter with improved chip removal capability and method for its production

Fräser (1), umfassend: einen Schaft (3), einen Schneidkopf (2), der an dem Schaft (3) befestigt ist, wobei der Schneidkopf (2) mehrere spiralförmige Zähne (8) aufweist, wobei jeder Zahn eine Schneidspitze (4), eine vordere Fläche (9), eine hintere Fläche (10) und eine ebene primäre Freiflächenfacette (11), die sich von der vorderen Fläche (9) bis zur hinteren Fläche (10) erstreckt und einen primären Freiwinkel (22) von 5 - 10 Grad hat, aufweist, und wobei ein Keilwinkel (W) jedes Zahns zwischen 60 und 90 Grad beträgt, und eine Nut (5), die zwischen der vorderen Fläche (9) eines nachlaufenden Zahns (8) und einer hinteren Fläche (10) eines unmittelbar vorangehenden Zahns (8) definiert ist, wobei eine Rinne (14) der Nut (5) einen W-förmigen Querschnitt aufweist, um zusätzliches Volumen für effektive Spanabfuhr bereitzustellen. Milling cutter (1), comprising: a shaft (3), a cutting head (2) fixed to the shaft (3), the cutting head (2) having a plurality of helical teeth (8), each tooth having a cutting tip (4), a front surface (9), a rear surface ( 10) and a planar primary open-face facet (11) extending from the front surface (9) to the rear surface (10) and having a primary relief angle (22) of 5 - 10 degrees, and wherein a wedge angle (W ) of each tooth is between 60 and 90 degrees, and a groove (5) defined between the front surface (9) of a trailing tooth (8) and a rear surface (10) of an immediately preceding tooth (8), wherein a groove (14) of the groove (5) has a W-shaped cross-section to provide additional volume for effective chip removal.

Andeew laundby

一种螺纹管液压管机

本申请涉及螺纹管制造设备领域，公开了一种螺纹管液压管机，其包括基座、设置在基座一端的螺纹成形机构和设置在基座上的驱动机构，螺纹成形机构包括固定设置在基座上的成形架、转动设置在成形架上的卡盘和设置在卡盘卡爪上的成形件，卡盘与待成形的圆管同轴设置，待成形的圆管贯穿成形架和卡盘，成形件与待成形的圆管表面抵触；驱动机构包括滑动设置在基座上的驱动座、设置在驱动座一侧的夹持件，驱动座沿基座长度方向滑动，驱动座上开设供圆管成形部位穿过的避让孔。驱动座远离螺纹成形机构的一侧设置有折弯机构，折弯机构用于对圆管成形部位折弯。本申请具有在加工螺纹管的同时对其进行折弯的效果。

Improvements in fluteless taps

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방열관 및 그 제조장치

본 발명은 증기나 온수가 흐르는 관으로부터 그 증기나 온수가 가지고 있는 열을 외부로 효과적으로 방출하도록 상기 관의 외부를 전조(Rolling of rod)하여 방열핀을 관에 일체로 형성시키는 방열관 및 그 방열관 제조장치에 관한 것으로서, 이의 구성은 중앙에 파이프가 진행하는 파이프가이드로가 형성되고, 일 측에는 모터와 연결 설치되어 회전되는 회전몸체가 설치된 본체; 상기 파이프가이드로의 출측 회전몸체에 전/후진 가능하게 설치되어 파이프의 외주연을 전조 하도록 다수의 디스크가 순차적으로 설치된 파이프전조수단; 상기 파이프전조수단이 설치된 회전몸체의 전방에 설치되며, 파이프가이드로를 진행하는 파이프의 직경보다 크고 상기 파이프와 동일한 원을 갖는 파이프전조수단이동체; 파이프전조수단이동체와 연결 설치되어 그 파이프전조수단이동체를 전/후진시키도록 마련된 작동수단으로 이루어진다.

Cuchillas, así como un procedimiento para su fabricación

La presente solicitud se refiere a una cuchilla (1), en particular a una cuchilla rebajadora para el procesamiento de cueros de animales y productos de cuero, que comprende una prolongación de cuchilla alargada y plana (2), que a lo largo de su eje longitudinal (3) está conformada de forma helicoidal alrededor de un eje medio (4), de modo que el eje longitudinal (3) de la cuchilla (1) transcurre de forma helicoidal, presentando la prolongación de cuchilla (2) en un extremo superior, opuesto al eje medio (4), una sección de corte (5) que comprende en su extremo superior un canto de corte (6), presentando la cuchilla (1) al menos en su sección de corte (5) una estructura de superficie (7) prolongada respecto de una extensión lisa que -vista a lo largo del eje longitudinal (3) de la cuchilla (1)- presenta puntos máximos (8) y puntos mínimos (9) alternándose regularmente, donde las líneas de pico (10) y las líneas de valle (11), que se corresponden respectivamente con los puntos máximos (8) y los puntos mínimos (9) de la estructura de superficie (7), se extienden en cada caso a partir del canto de corte (6) en dirección al eje longitudinal (3) de la cuchilla (1). Para proporcionar una cuchilla mediante la cual sea posible un procesamiento comparativamente cuidadoso de cueros de animales, se propone según la presente que las líneas de pico (10) y las líneas de valle (11) se extiendan arqueadas, presentando las líneas de pico (10) y las líneas de valle (11) en cada caso un radio variable a lo largo de su longitud. La presente solicitud se refiere además a un dispositivo de corte (14) que está provisto de las cuchillas según la presente (1), así como a un procedimiento para la fabricación de una cuchilla (1) según la presente.

Method and device for producing a circularly cylindrical body, which consists of plastics material, with internally disposed helical recesses

A method is for producing a circular cylindrical body ( 10 ) comprising a workable mass, having at least one helical internal cavity extending in the interior of the body. The body ( 10 ) is initially produced with a straight internal recess, for example by means of extrusion. Afterwards the body is cut to a defined length. The body ( 10 ) that has been cut to length is then subjected to a rolling process by means of a friction surface arrangement ( 23 ) while being supported over the entire length thereof on a support means ( 16 ). The rolling process takes place in multiple steps, wherein a rolling movement using a first axis of rotation ( 25 ) is performed in a first step, and a rolling movement using a second axis of rotation ( 26 ) that is different from the first axis of rotation is used in a second step. There is also an apparatus for performing the method.

Method and device for producing a circularly cylindrical body, which consists of plastics material, with internally disposed helical recesses

The invention relates to a method for producing a circular cylindrical body ( 10 ) comprising a workable mass, having at least one helical internal cavity extending in the interior of the body. The body ( 10 ) is initially produced with a straight internal recess, for example by means of extrusion. Afterwards the body is cut to a defined length. The body ( 10 ) that has been cut to length is then subjected to a rolling process by means of a friction surface arrangement ( 23 ) while being supported over the entire length thereof on a support means ( 16 ). The rolling process takes place in multiple steps, wherein a rolling movement using a first axis of rotation ( 25 ) is performed in a first step, and a rolling movement using a second axis of rotation ( 26 ) that is different from the first axis of rotation is used in a second step. The invention also relates to an apparatus for performing the method.

制造由塑性物料构成的具有内部螺旋状槽的圆柱形物体的方法和装置

本发明涉及一种用于制造由塑性物料构成的圆柱形物体(10)的方法，所述物体具有至少一个在物体内部延伸的螺旋状内槽。首先，物体(10)被制造成例如挤出成形为带有直线延伸的内槽。然后，将物体按照一定长度截取下来。接着，借助一个摩擦面结构(23)使截取下来的物体(10)经受滚轧过程，此时该物体在整个长度上被支撑于一支承底板(16)上。所述滚轧过程是按多个步骤进行的，其中，在第一个步骤中，在采用第一旋转轴线(25)的情况下实现滚轧运动，而在第二个步骤中，在采用不同于所述第一旋转轴线的第二旋转轴线(26)的情况下实现滚轧运动。本发明还涉及一种用于实施本方法的装置。

Saegedraht mit laengsgewalztem Schneideprofil und Verfahren zum Herstellen des Saegedrahts

Verfahren und vorrichtung zur herstellung eines aus plastischer masse bestehenden kreiszylindrischen körpers mit innenliegenden wendelförmigen ausnehmungen

一种电线电缆的金属护套轧纹设备

本发明公开了一种电线电缆的金属护套轧纹设备，本发明涉及线缆轧纹加工技术领域，包括工作台，滑块一的表面设置有夹持部件，工作台的表面固定连接有固定板，驱动刀架的表面设置有轧纹部件，轧纹部件包括深度调节组件，轧纹转动部件设置在工作台表面，轧纹转动部件包括转杆，轧纹转动部件包括间隙调节组件，夹持调节部件设置在工作台表面，具备了通过设置深度调节组件与可移动的夹持调节部件相配合，使该设备能够对不同直径的线缆金属护套进行轧纹工作，提高了设备的实用性，通过间隙调节组件能够对转杆的转速进行调节，从而对金属护套在轧制时的扎纹间隙进行调节，无需更换轧纹机头，节省了时间，提高了轧纹效率的效果。

Verfahren zum Walzen eines Gewindes mit hoher Dauerfestigkeit

中空材の製造方法

【課題】煩雑な工程を簡素化しつつ所望のおねじを形成できる中空材の製造方法を提供すること。【解決手段】中空材の製造方法は、軸線の方向に、内部に空洞を有する第２部と、第２部よりも高い剛性を有する第１部と、の少なくとも２つの剛性の異なる部分を有する中空の被加工物を準備する準備工程と、被加工物の外周面に転造ダイスのねじ部を押し付けておねじを形成する転造工程と、を備えている。転造工程は、第１部の側から第１部から離れる方向へ向かって被加工物の外周面に転造ダイスのねじ部を順次押し付けることにより第２部におねじを形成する。【選択図】図３

Bohrer

Verfahren und Walzwerk zur Herstellung von Rohstuecken fuer Spiralbohrer durch Auswalzen von auf Mass geschnittenen Stabenden

Manufacture of screws rods and joint production and machine for manufacture thereof

刀具以及用于制造刀具的方法

本发明涉及一种刀具，其包括纵向伸长的扁平的刀具支腿，该刀具支腿沿着其纵轴线螺旋形地绕中轴线构造，从而刀具的纵轴线螺旋形地延伸，刀具支腿在背离中轴线的上端部上具有切割区段，该切割区段在其上端部上具有刀刃，刀具至少在其切割区段中具有相对于平滑走向延长的表面结构，所述表面结构沿着刀具的纵轴线观察规则地交替地具有高点和低点，与表面结构的峰线和谷线分别对应的高点和低点从刀刃出发沿刀具的纵轴线的方向延伸。为了提供能相对经济地加工兽皮的刀具，按照本发明提出，峰线和谷线弧形地延伸，峰线和谷线分别在其长度上具有变化的半径。本发明还涉及一种装备有按照本发明的刀具的切割装置以及一种用于制造按照本发明的刀具的方法。

Faca, dispositivo de corte e método para produção de uma faca

Faca, dispositivo de corte e método para produção de uma faca

A presente invenção se refere a uma faca (1), especialmente faca raspadeira para processamento de peles animais, compreendendo uma perna de faca (2) plana, longitudinalmente estirada, que é executada ao longo de seu eixo longitudinal (3) helicoidal em torno de um eixo central (4), de modo que o eixo longitudinal (3) da faca (1) se estende helicoidalmente, em que a perna de faca (2) apresenta em uma extremidade superior, oposta ao eixo central (4), um segmento de corte (5), que compreende em sua extremidade superior uma aresta de corte (6), sendo que a faca (1) apresenta pelo menos em seu segmento de corte (5) uma estrutura de superfície (7) prolongada para um curso liso, que - observado ao longo do eixo longitudinal (3) da faca (1) - apresenta pontos altos (8) e pontos baixos (9) regularmente alternados, sendo que linhas de cume (10) e linhas de vale (11), que são respectivamente correspondentes com os pontos altos (8) e pontos baixos (9) da estrutura de superfície (7), se estendem a partir da aresta de corte (6) em direção do eixo central (3 )da faca (1). Para disponibilizar uma faca, por meio da qual seja possível uma usinagem relativamente cuidadosa de peles animais se propõe de acordo com a invenção que as linhas de cume (10) e linhas de vale (11) apresentem respectivamente um raio variado por seu comprimento, em que as linhas de cume (10) e as linhas de vale (11) apresentam respectivamente um raio variável ao longo do seu comprimento. Além disso, o presente pedido se refere a um dispositivo de corte (14), que é equipado com facas (1) de acordo com a invenção, bem como a um método para produção de uma faca (1) de acordo com a invenção.

Faca, dispositivo de corte e método para produção de uma faca

A presente invenção se refere a uma faca (1), especialmente faca raspadeira para processamento de peles animais, compreendendo uma perna de faca (2) plana, longitudinalmente estirada, que é executada ao longo de seu eixo longitudinal (3) helicoidal em torno de um eixo central (4), de modo que o eixo longitudinal (3) da faca (1) se estende helicoidalmente, em que a perna de faca (2) apresenta em uma extremidade superior, oposta ao eixo central (4), um segmento de corte (5), que compreende em sua extremidade superior uma aresta de corte (6), sendo que a faca (1) apresenta pelo menos em seu segmento de corte (5) uma estrutura de superfície (7) prolongada para um curso liso, que - observado ao longo do eixo longitudinal (3) da faca (1) - apresenta pontos altos (8) e pontos baixos (9) regularmente alternados, sendo que linhas de cume (10) e linhas de vale (11), que são respectivamente correspondentes com os pontos altos (8) e pontos baixos (9) da estrutura de superfície (7), se estendem a partir da aresta de corte (6) em direção do eixo central (3 )da faca (1). Para disponibilizar uma faca, por meio da qual seja possível uma usinagem relativamente cuidadosa de peles animais se propõe de acordo com a invenção que as linhas de cume (10) e linhas de vale (11) apresentem respectivamente um raio variado por seu comprimento, em que (...).

Messer sowie verfahren zu dessen herstellung

Die vorliegende Anmeldung betrifft ein Messer (1), insbesondere Falzmesser zur Bearbeitung von Tierhäuten und Lederwaren, umfassend einen langgestreckten, flachen Messerschenkel (2), der entlang seiner Längsachse (3) wendelförmig um eine Mittelachse (4) ausgebildet ist, sodass die Längsachse (3) des Messers (1) wendelförmig verläuft, wobei der Messerschenkel (2) an einem oberen, der Mittelachse (4) abgewandten Ende einen Schneidabschnitt (5) aufweist, der an seinem oberen Ende eine Schneidkante (6) umfasst, wobei das Messer (1) zumindest in seinem Schneidabschnitt (5) eine gegenüber einem glatten Verlauf verlängerte Oberflächenstruktur (7) aufweist, die - entlang der Längsachse (3) des Messers (1) betrachtet - regelmäßig alternierend Hochpunkte (8) und Tiefpunkte (9) aufweist, wobei sich Berglinien (10) und Tallinien (11), die mit den Hochpunkten (8) und Tiefpunkten (9) der Oberflächenstruktur (7) jeweils korrespondieren, ausgehend von der Schneidkante (6) in Richtung der Längsachse (3) des Messers (1) erstrecken. Um ein Messer bereitzustellen, mittels derer eine vergleichsweise schonende Bearbeitung von Tierhäuten möglich ist, wird erfindungsgemäß vorgeschlagen, dass die Berglinien (10) und Tallinien (11) bogenförmig verlaufen, wobei die Berglinien (10) und die Tallinien (11) jeweils über ihre Länge einen veränderlichen Radius aufweisen. Ferner betrifft die vorliegende Anmeldung eine Schneidvorrichtung (14), die mit erfindungsgemäßen Messern (1) ausgestattet ist sowie ein Verfahren zur Herstellung eines erfindungsgemäßen Messers (1).

Faca, dispositivo de corte e método para produção de uma faca

a presente invenção se refere a uma faca (1), especialmente faca raspadeira para processamento de peles animais, compreendendo uma perna de faca (2) plana, longitudinalmente estirada, que é executada ao longo de seu eixo longitudinal (3) helicoidal em torno de um eixo central (4), de modo que o eixo longitudinal (3) da faca (1) se estende helicoidalmente, em que a perna de faca (2) apresenta em uma extremidade superior, oposta ao eixo central (4), um segmento de corte (5), que compreende em sua extremidade superior uma aresta de corte (6), sendo que a faca (1) apresenta pelo menos em seu segmento de corte (5) uma estrutura de superfície (7) prolongada para um curso liso, que - observado ao longo do eixo longitudinal (3) da faca (1) - apresenta pontos altos (8) e pontos baixos (9) regularmente alternados, sendo que linhas de cume (10) e linhas de vale (11), que são respectivamente correspondentes com os pontos altos (8) e pontos baixos (9) da estrutura de superfície (7), se estendem a partir da aresta de corte (6) em direção do eixo central (3 )da faca (1). para disponibilizar uma faca, por meio da qual seja possível uma usinagem relativamente cuidadosa de peles animais se propõe de acordo com a invenção que as linhas de cume (10) e linhas de vale (11) apresentem respectivamente um raio variado por seu comprimento, em que as linhas de cume (10) e as linhas de vale (11) apresentam respectivamente um raio variável ao longo do seu comprimento. além disso, o presente pedido se refere a um dispositivo de corte (14), que é equipado com facas (1) de acordo com a invenção, bem como a um método para produção de uma faca (1) de acordo com a invenção.

침대 매트리스용 스프링 조립체

본 발명은 침대 매트리스의 상부프레임과 바닥부재 사이에 판형판형상의 판체형블럭스프링과 판체형일자스프링으로 이루어진 스프링조립체를 결합하여 내부의 견고성 및 내구성 등이 우수하며 처짐 변형을 방지하는 동시에 가장자리의 복원력을 향상시켜 제품의 품질을 향상시키는 침대 매트리스용 스프링 조립체에 관한 것이다. 본 스프링조립체는 상부프레임(10)과 바닥부재(20)의 테두리를 따라서 수직방향 설치되고, 상기 상부 프레임(10) 내에 길이방향으로 복수개 설치된 보조프레임(30)과 상부프레임(10)을 복수 선택적으로 이용하여 수평방향설치되는 판체형블럭스프링(40)과, 상기 상부프레임(10)의 테두리를 따라서 수평방향 설치되는 판체형일자스프링(50)을 포함하여 구성되는 특징이 있다.

나사전조탭

본 발명은 소재를 소성가공하여 암나사를 만드는 나사전조탭에 대한 것으로, 더욱 상세하게는 외면을 따라 나사산이 형성되고, 테이퍼진 챔퍼부와 상기 챔퍼부에서 연장되는 평행부를 가진 나사산부를 포함하는 나사전조탭에 있어서, 상기 챔퍼부는 챔퍼부의 일 측면에 형성되어 소재의 관통홀 표면에 접촉하여 상기 나사전조탭을 상기 관통홀 내로 가이드하는 가이드부를 포함하며, 상기 가이드부는 상기 챔퍼부의 나사산보다 먼저 상기 관통홀 표면에 접촉하여 상기 챔퍼부의 나사산이 상기 관통홀 표면에 접촉시 상기 챔퍼부가 상기 관통홀의 표면에서 이격되어 위치하지 않도록 하여 인입 초기에 발생할 수 있는 휨 현상을 제거할 수 있고, 산정과 플랭크에서 요구되는 각각의 특장점에 맞추어 상기 산정의 프로파일과 상기 골밑의 프로파일을 각기 달리 설계적용하여, 수명이 향상되고 고품질의 암나사를 형성할 수 있는 나사전조탭에 대한 것이다.

Verfahren zur Herstellung glatter doppelgaengiger Schnecken (Wendel) aus duennem Band

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具有排屑槽的钻头

一种切削刀具即钻头(10)，有一基体(12)。卡持端在基体(12)之一端部上，切削端(16)则在另一端处。至少一排屑槽(30)制作在两端部(14)、(16)之间的基体(12)上。排屑槽有一棱(36)及切屑槽(32)。棱有第一、第二表面(38)、(40)与切屑槽侧壁(34)连接。第一表面大致与基体纵轴线(18)平行，第二表面与纵轴线(18)成一约100°至120°之倾角。第二表面构成了切屑槽(32)的基部。切屑槽侧壁(34)与纵轴线成约10°至20°倾角。切屑槽表面轴向长度与第一表面轴向长度之比值约为2∶1至4∶1。另外还公开了将毛坯冷滚成上述钻头(10)之方法。

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나사전조탭

본 발명은 소재를 소성가공하여 암나사를 만드는 나사전조탭에 대한 것으로, 더욱 상세하게는 외면을 따라 나사산이 형성되고, 테이퍼진 챔퍼부와 상기 챔퍼부에서 연장되는 평행부를 가진 나사산부를 포함하는 나사전조탭에 있어서, 상기 챔퍼부는 챔퍼부의 전방에 연이어 형성되어 소재의 관통홀 표면에 접촉하여 상기 나사전조탭을 상기 관통홀 내로 가이드하는 소정의 폭을 가진 가이드부를 포함하며, 상기 가이드부는 상기 챔퍼부의 나사산보다 먼저 상기 관통홀 표면에 접촉하여 상기 챔퍼부의 나사산이 상기 관통홀 표면에 접촉시 상기 챔퍼부가 상기 관통홀의 표면에서 이격되어 위치하지 않도록 하여 인입 초기에 발생할 수 있는 휨 현상을 제거할 수 있고, 산정과 플랭크에서 요구되는 각각의 특장점에 맞추어 상기 산정의 프로파일과 상기 골밑의 프로파일을 각기 달리 설계적용하여, 수명이 향상되고 고품질의 암나사를 형성할 수 있는 나사전조탭에 대한 것이다.

Tillverkning av skruvstänger och skarvframställning och en maskin för tillverkning av dessa

Uppfinningen avser en metod för tillverkning av en längs en Z-axel (Z) sträckande sig skruvstångsektion (1', 1").Metoden innefattar stegen; bearbetning av ett arbetsstycke (23) att innefatta åtminstone ett skruvspår (11); bearbetning av arbetsstycket (23) att innefatta ett första anliggningsplan (AP1) sträckande sig tvärs Z-axeln (Z); inmätning av det första anliggningsplanet (AP1) och en första referenspunkt (RP1) hos skruvspåret (11) i relation till varandra; fastställning av en position för en första ingångspunkt (IP1) hos skruvspåret (11) utifrån nämnda inmätning; bearbetning av arbetsstycket (23) att innefatta ett första monteringsgängavsnitt (17) uppvisande åtminstone en första gänga innefattande en det första anliggningsplanet (AP1) anslutande första förbindningspunkt (FP1).Uppfinningen avser även en bearbetningskonfiguration för tillverkning av skruvstångsektioner (1', 1") samt en fleroperationsmaskin (31) som är inrättad för hel- eller semiautomatisk tillverkning av skruvstångsektioner (1', 1").Uppfinningen avser även ett datorprogram (P) vid en bearbetningskonfiguration för tillverkning av skruvstångsektioner (1', 1"),

Fabrico de hastes de parafusos e produção de juntas e máquinas para o fabrico das mesmas

Produkcja prętów gwintowanych i produkcja złącz oraz maszyna do ich wytwarzania

Fabricación de varillas roscadas y producción conjunta y máquina para fabricación de las mismas

La invención se refiere a un método para la fabricación de una sección de varilla roscada (1', 1") que se extiende a lo largo del eje z (Z). El método comprende los pasos: procesamiento de una pieza de trabajo (23) para que comprenda al menos una ranura roscada (11); procesamiento de la pieza de trabajo (23) para que comprenda un primer plano de contacto (API) que se extiende transversalmente al eje z (Z); medir el primer plano de contacto (API) y un primer punto de referencia (RP1) en la ranura roscada (11) entre sí; determinación de la posición de un primer punto de entrada (IP1) en la ranura roscada (11) en base a dicha medición; procesamiento de la pieza de trabajo (23) para comprender una primera sección de rosca de montaje (17) que demuestra al menos una primera rosca que comprende un primer punto de conexión (FP1) que está conectado en el primer plano de contacto (API). La invención se refiere también a una configuración de procesamiento para la fabricación de secciones de varilla roscada (1, 1") y una máquina multioperación (31) que está dispuesta para la fabricación total o parcialmente automática de secciones de varilla roscada (1, 1"). La invención se refiere también a un programa informático (P) en una configuración de procesamiento para la fabricación de secciones de varilla roscada (1', 1"). (Traducción automática con Google Translate, sin valor legal)

Fremstilling af skruestænger og samlingsproduktion og maskine til fremstilling deraf

Manufacture of screws rods and joint production and machine for manufacture thereof

The invention concerns a method for the manufacture of a section of screw rod (1', 1") that extends along the z-axis (Z). The method comprises the steps: processing of a workpiece (23) to comprise at least one threaded groove (11); processing of the workpiece (23) to comprise a first plane of contact (API) that extends transverse to the z-axis (Z); measuring in of the first plane of contact (API) and a first reference point (RP1) at the threaded groove (11) relative to each other; determination of the position of a first entry point (IP1) at the threaded groove (11) based on the said measuring in; processing of the workpiece (23) to comprise a first section of assembly thread (17) that demonstrates at least a first thread comprising a first connection point (FP1) that is connected at the first plane of contact (API). The invention concerns also a processing configuration for the manufacture of sections of screw rod (1, 1") and a multioperation machine (31) that is arranged for fully or partially automatic manufacture of sections of screw rod (1, 1"). The invention concerns also a computer program (P) at a processing configuration for the manufacture of sections of screw rod (1', 1").

Taraud sans cannelures longitudinales, et son procédé de fabrication

Procédé et dispositif pour le filetage et le détalonnage de tarauds par laminage

一种防断裂的外沿增厚型螺旋叶片及其成型方法

本发明公开了一种防断裂的外沿增厚型螺旋叶片及其成型方法，包括螺旋叶片轧压部，所述螺旋叶片轧压部的螺旋外沿处至少一侧设置有螺旋叶片增厚部，所述螺旋叶片轧压部和所述螺旋叶片增厚部之间设置有轧压弧面，所述螺旋叶片增厚部的增厚侧朝向所述螺旋叶片轧压部倾斜设置，本发明中，螺旋叶片轧压部的螺旋外沿处至少一侧设置有螺旋叶片增厚部，且螺旋叶片轧压部的厚度小于螺旋叶片增厚部的厚度，使得螺旋叶片的外沿处至少一侧增厚，能够适用于正转、反转或正反转三种方式输送或混合物料，螺旋叶片外沿增厚效果，提高螺旋叶片的外沿耐磨性能和结构强度，螺旋叶片的外沿处不容易发生断裂和磨损破裂的现象，延长螺旋叶片的使用寿命。

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좌우 동시나사 전조 가공장치

본 고안은 전조방식을 이용하여 나사를 가공하되 양쪽 전조다이에 서로 반대방향으로 경사진 경사돌기를 형성하여 나사축 소재를 전조함으로써, 나사축에 한방향 나선홈 및 반대방향 나선홈이 서로 교차 형성되어 좌우 동시나사가 신속하고 정확하게 연속생산되도록 한 좌우 동시나사 전조 가공장치에 관한 것이다. 이를 위하여 본 고안은 판상의 좌측 전조다이 및 판상의 우측 전조다이가 구비되고, 상기 전조다이들의 대향면에는 서로 반대방향으로 경사진 경사돌기들이 다수열 등간격으로 형성되며, 상기 전조다이들의 대향면 사이에는 나사축이 놓여 상기 전조다이들이 교차 이동되는 동안 상기 경사돌기들에 의해 상기 나사축의 외주면에 한방향 나선홈 및 이와 반대방향의 반대방향 나선홈이 서로 교차 형성되도록 한 특징이 있다. 전조다이, 경사돌기, 나사축, 나선홈

Procede de fabrication d'elements taraudes et autotaraudeurs lobulaires

L'INVENTION CONCERNE UN PROCEDE DE FABRICATION D'ELEMENTS RAPPORTES FILETES ET TARAUDES DE TYPE AUTOTARAUDEUR. LE PROCEDE MET EN OEUVRE UN APPAREIL CLASSIQUE DE ROULAGE AYANT DEUX MATRICES CYLINDRIQUES MENEES, EN COMBINAISON AVEC UNE MATIERE DE SECTION LOBULAIRE, SI BIEN QUE DES TRONCONS FILETES SONT PERCES ET TARAUDES PUIS DECOUPES DE LA MATIERE. APPLICATION A LA FABRICATION D'ELEMENTS RAPPORTES AUTOTARAUDEURS.

一种螺纹管液压管机

本申请涉及螺纹管制造设备领域，公开了一种螺纹管液压管机，其包括基座、设置在基座一端的螺纹成形机构和设置在基座上的驱动机构，螺纹成形机构包括固定设置在基座上的成形架、转动设置在成形架上的卡盘和设置在卡盘卡爪上的成形件，卡盘与待成形的圆管同轴设置，待成形的圆管贯穿成形架和卡盘，成形件与待成形的圆管表面抵触；驱动机构包括滑动设置在基座上的驱动座、设置在驱动座一侧的夹持件，驱动座沿基座长度方向滑动，驱动座上开设供圆管成形部位穿过的避让孔。驱动座远离螺纹成形机构的一侧设置有折弯机构，折弯机构用于对圆管成形部位折弯。本申请具有在加工螺纹管的同时对其进行折弯的效果。

可塑性の質量体から成る、内側の螺旋状の切抜き部を備えた円柱形の物体を製造する方法並びに装置

本発明は、可塑性の質量体から成る、内部に延在している螺旋状の少なくとも１つの内部切抜き部を有する円柱形の物体（１０）を製造する方法に関する。まず内部切抜き部が直線状に延在している物体（１０）を、例えば押出成形によって製造し、その後、所定の長さに物体を切断する。次いで切断された前記物体を支持部において前記物体の全長にわたって支持しつつ摩擦面装置により転動プロセスにかける。転動プロセスを複数のステップにおいて実施し、第１のステップにおいて第１の回動軸線を使用して転動運動を実施し、第２のステップにおいて前記第１の回動軸線とは異なる第２の回動軸線を使用して転動プロセスを行う。また、本発明は上記方法を実施する装置にも関する。

螺旋叶片成型机

本发明公开了螺旋叶片成型机，涉及叶片成型技术领域，一种螺旋叶片成型机，包括底座和螺纹移动板，所述底座的顶部安装有空腔块，所述空腔块的内部安装有第一伺服电机，所述第一伺服电机的输出端安装有圆块，所述圆块的一侧面安装有U形板，所述U形板的底部安装有电动液压推杆。该螺旋叶片成型机，通过U形板、电动液压推杆、升降块、凸型滑块、定位滑块、梯形块和夹块的设置，使该螺旋叶片成型机具备了提高对叶片夹持的稳定性，方便叶片螺旋成型的效果，在使用的过程中，通过升降块的移动，使梯形块带动夹块移动，通过夹块夹持叶片，使叶片随着轴芯的转动而螺旋转动，方便叶片螺旋成型，达到了提高实用性的目的。

Bohrer und herstellungsverfahren für einen bohrer

Ein erfindungsgemäßer Bohrer (1) hat längs einer Achse (2) zwischen einem Bohrkopf (3) und einem Einsteckende (5) einen Schaft (4). Der Schaft (4) ist mit wenigstens zwei ersten, längs der der Achse (2) verlaufenden Nuten (34) und wenigstens einer zweiten, wendeiförmigen Nut (31) versehen. Die ersten Nuten (34) und die zweite Nut (31) kreuzen einander an mehreren Kreuzungen (41). Eine Nutbreite (35) der ersten Nut (34) nimmt im Verlauf zwischen zwei benachbarten Kreuzungen (41) von einer der Kreuzungen (41) bis zu einer engsten Stelle (42) stetig ab. Nach der engsten Stelle (42) nimmt die Nutbreite (35) bis zu der anderen der Kreuzungen (41) stetig zu.