Cushion block group

The utility model discloses a cushion block group, which comprises a plurality of cushion blocks of different thicknesses. Supports of different thicknesses are formed by the combination of the cushion blocks of different thicknesses. When a workpiece is to be machined with an inclined hole or an inclined groove, a proper cushion block is formed by the combination of the cushion blocks of different thicknesses according to the height requirement of the workpiece. Due to the adoption of the cushion block group, the condition in the prior art that cushion blocks of corresponding heights are manufactured according to different thickness requirements is avoided. The universality of cushion blocks is realized and the utilization efficiency of cushion blocks is increased. Meanwhile, during the machining of a workpiece, cushion blocks of different thicknesses are combined together so as to form a cushion block of a required thickness, so that the condition in the prior art that cushion blocks ...

Fixture

The invention discloses a fixture, used with a jaw vice or flat tongs coordinately. The fixture comprises a jaw iron connected with the jaw vice or flat tongs, a fixture block movably connected with the jaw iron wherein the jaw iron is provided with a groove the cross section of which is in most half circular arc shape, one surface of the fixture block is provided with a projected rotating shaft which can be contained by the groove of the jaw iron, and the other surface relative to the rotating shaft is provided with a V shape opening, and the V shape opening is vertical to the axis of the rotating shaft. When applying the fixture provided by the embodiment of the invention, the fixture block can rotate in the groove of the jaw iron in certain angle range when clamping taper or slope workpiece, thus the plane part of the surface provided with the V shape opening or the V shape opening is partially contacted or adhered with the inclined plane of the taper or slope work piece by adjusting ...

Internal-division-type fender injection mold and injection molding method of fender

The invention provides an internal-division-type fender injection mold and an injection molding method of a fender, and relates to the field of injection molds. An inclined ejection block and a slide block are combined to eject the fender while opening the mold; in order to ensure the balance and synchronization of the ejection, a heavy-duty draw hook installed on the movable side draws a push plate at the fixed side while opening the mold, a shift block, the inclined ejection block and the slide block are uniformly driven to move by the push plate, so that the fender is ejected and left on the female mold cavity; and the fender is taken down by a manipulator. The mold stripping mode solves the problem of difficulty in mold stripping in the internal-division-type fender injection mold, so that the round inverted in the female mold can be smoothly demolded, and the round of the product can not be scratched or deformed.

Device for testing ejection of small-sized and medium-sized molds

The embodiment of the utility model discloses a device for testing the ejection of small-sized and medium-sized molds. The device comprises a main body and a jack, wherein mounting holes are arranged on a first end face of the main body; the jack is fixed inside the main body; and the ejection part of the jack can extend out of the first end face of the main body. The device is used for testing the ejection of the molds before the molds are mounted on an injection-molding machine, so that the problems possibly existing in the ejection can be discovered and solved in advance, the unnecessary repeated machining is reduced, the time for testing the molds is saved, the damage to parts of the molds due to the ejection is avoided, and the reliability for the ejection of the molds when the molds are tested can be ensured.

Fixture

Injection mould and secondary ejection mechanism of injection mould

The embodiment of the utility model discloses a secondary ejection mechanism which comprises an upper ejector pin plate, a lower ejector pin plate, a bottom plate and an inverse buckle ejector pin; the lower ejector pin plate is positioned between the upper ejector pin plate and the bottom plate; the inverse buckle ejector pin penetrates through the upper ejector pin plate; the secondary ejector mechanism further comprises a limit sleeve, a guide sleeve, a return spring and a return rod, wherein the internal of the limit sleeve is fixed with one end of the inverse buckle ejector pin; the limit sleeve can be arranged in the upper ejector pin plate in a sliding manner; the guide sleeve can be arranged in the lower ejector pin plate in the sliding manner; the internal of the guide sleeve can be used for accommodating the limit sleeve; the return rod can be arranged inside the guide sleeve through the return spring in the sliding manner. Therefore, several parts are only required to be embedded ...

Universal fixture

The invention discloses a universal fixture, which comprises support pillars and support seats, wherein each support pillar comprises a hemispherical turning part, a cylindrical empty-avoiding platform connected with the turning part, and a cylindrical positioning platform connected with the cylindrical empty-avoiding platform and provided with screw threads; and each supporting seat is provided with a hemispherical groove matched with the turning part. The universal fixture is used by the following steps that: four screw holes are punched on a work piece on which inclined holes or chutes need machining; the four support pillars are taken out; the positioning platforms of each support pillar are screwed into the four screw holes on the work piece respectively; the four support seats with preset heights are placed on a workbench of a three-shaft machine tool; the work piece is lifted and the turning parts of the four support pillars arranged on the work piece are sleeved onto the grooves ...