CN205008926U - fixture - Google Patents

Abstract

The utility model discloses an anchor clamps for the processing of work piece, include: the clamp comprises a bottom plate, a clamp bottom die and a cylinder; the clamp bottom die is arranged in the middle of the bottom plate and is used for bearing the workpiece; the air cylinders are arranged on the bottom plate around the clamp bottom die, one ends, far away from the bottom plate, of the air cylinders are provided with air cylinder pressing claws, and the air cylinders are used for driving the air cylinder pressing claws to press downwards so as to clamp the workpiece. The clamp adopts the clamp bottom die to bear the workpiece, the plurality of cylinders are arranged around the clamp bottom die, and the cylinders drive the air cylinder pressing claws to press downwards so as to clamp the workpiece. For traditional top-up anchor clamps, this kind of anchor clamps are push-down anchor clamps, still can better location when cylinder power is not enough to be difficult for causing positioning error.

Description

fixture

technical field

The utility model relates to the processing field of a middle plate or a bottom plate of a mobile terminal device, in particular to a clamp.

Background technique

Currently, CNC (Computernumerical control, computer numerical control machine tool) machining and/or punching and forging can be used to complete the preparation and processing of workpieces such as the middle plate or bottom plate of mobile terminal equipment (eg, mobile phone, tablet computer).

During the preparation and processing of the workpiece of the middle plate or the bottom plate of the mobile terminal equipment (eg, mobile phone, tablet computer), the workpiece to be processed needs to be fixed by a clamp. The traditional fixture is an upper-top fixture, the workpiece is positioned on the bottom mold of the fixture with pins, and the workpiece is fixed by pushing the bottom mold of the fixture and the workpiece to the fixture baffle by the cylinder. However, the cylinder of the traditional overhead fixture has no self-locking function. When the power of the cylinder is insufficient, it will easily lead to unstable positioning dimensions, resulting in positioning errors.

Utility model content

Based on this, it is necessary to provide a fixture that is less likely to cause positioning errors.

A fixture used for processing workpieces, comprising: a base plate, a fixture bottom mold and a cylinder;

The fixture bottom mold is arranged in the middle of the bottom plate, and the fixture bottom mold is used to carry the workpiece;

There are a plurality of cylinders, and a plurality of cylinders are arranged on the bottom plate around the bottom mold of the fixture, and the end of the cylinder away from the bottom plate is provided with a cylinder pressure claw, and the cylinder is used to drive the cylinder The jaws press down to clamp the workpiece.

In one embodiment, the clamp bottom mold includes a substrate and a plurality of limiting holes arranged on one surface of the substrate, the limiting holes are used to fix a limiting member, and the limiting member is used to define The movement of the workpiece on the plane where the substrate is located.

In one embodiment, the substrate is rectangular, the number of the limiting holes is four, and the four limiting holes are arranged on the four corners of the substrate;

There are four limiting members, and the four limiting members are fixed on the four corners of the base plate through the four limiting holes.

In one embodiment, the limiting member is a pin.

In one embodiment, the clamp bottom mold further includes a reference contact block, the reference contact block is set on the same surface of the substrate as the plurality of limit holes, and the plurality of limit holes are set on The periphery of the reference contact block, the end surface of the reference contact block away from the base plate is a reference contact surface in contact with the workpiece.

6. The fixture according to claim 5, wherein the shape of the reference contact block is a cuboid, there are multiple reference contact blocks, and the end faces of the multiple reference contact blocks far away from the substrate share a common The datum contact surface is formed.

In one embodiment, there is one reference contact block, and the end surface of the reference contact block away from the substrate is ring-shaped.

In one embodiment, there are six air cylinders, and the six air cylinders are arranged around the clamp bottom mold.

In one embodiment, the bottom plate is rectangular, two air cylinders are respectively arranged on two long sides of the bottom plate, and one air cylinder is respectively arranged on two short sides of the bottom plate.

In one embodiment, the workpiece is a middle board or a bottom board of a mobile terminal device.

This kind of fixture adopts the bottom mold of the fixture to carry the workpiece, and a plurality of cylinders are arranged around the bottom mold of the fixture, and the cylinder pressure claws are driven down by the cylinders to clamp the workpiece. Compared with the traditional top-up fixture, this kind of fixture is a downward-pressing fixture, and it can still be positioned better when the power of the cylinder is insufficient, so that it is not easy to cause positioning errors.

Description of drawings

Fig. 1 is the structural representation of the clamp of an embodiment;

Fig. 2 is a schematic structural view of a clamp bottom mold according to an embodiment.

detailed description

In order to make the above purpose, features and advantages of the present utility model more obvious and understandable, the specific implementation of the present utility model will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a full understanding of the present invention. However, the utility model can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below .

A jig 100 of one embodiment shown in FIG. 1 is used for processing a workpiece 200 .

The workpiece 200 may be a middle board or a bottom board of a mobile terminal device.

The fixture 100 includes: a bottom plate 10, a cylinder 20 and a bottom mold of the fixture.

There are multiple cylinders 20, and multiple cylinders 20 are arranged on the bottom plate 10 around the bottom mold of the fixture. The end of the cylinder 20 away from the bottom plate 10 is provided with a cylinder pressure claw 22, and the cylinder 20 is used to drive the cylinder pressure claw 22 to press down to clamp the workpiece. 200.

Referring to FIG. 1 , in this embodiment, there are six air cylinders 20 , and the six air cylinders 20 are arranged around the clamp bottom mold.

Specifically, the bottom plate 10 is rectangular, two air cylinders 20 are respectively arranged on the two long sides of the bottom plate 10 , and one air cylinder 20 is respectively arranged on the two short sides of the bottom plate 10 .

The jig bottom mold is disposed in the middle of the bottom plate 10 , and the jig bottom mold is used to carry the workpiece 200 .

In this embodiment, the bottom mold of the fixture is arranged in the middle of the bottom plate 10 through the support block 31 . In other embodiments, the support block 31 can be omitted.

Referring to FIG. 1 , the fixture bottom mold includes a base plate 32 and a plurality of limit holes 34 arranged on one surface of the base plate 32 , the limit holes 34 are used to fix a limit piece, and the limit piece is used to limit the position of the workpiece 200 on the base plate 32 . Plane movement.

Specifically, the limiting member may be a pin.

With reference to FIG. 2 , another embodiment of the clamp bottom mold 330 includes a base plate 332 , a limiting hole 334 and a reference contact block 336 . The limiting hole 334 is used to fix the limiting member, and the limiting member is used to limit the movement of the workpiece on the plane where the base plate 332 is located. The reference contact block 336 and the plurality of limiting holes 334 are disposed on the same surface of the substrate 332 , and the plurality of limiting holes 334 are disposed on the periphery of the reference contact block 336 . The end surface of the reference contact block 336 away from the base plate 336 is a reference contact surface that contacts the workpiece.

This kind of fixture bottom mold 330 is provided with reference contact block 336 on the base plate 332, and the reference contact surface of one end of reference contact block 336 away from the base plate forms the reference contact surface that is in contact with the workpiece relative to the surface of the entire base plate 332, which facilitates the plane of the reference contact surface degree calibration.

Specifically, as shown in FIG. 2 , the substrate 332 is rectangular, and there are four limiting holes 334 , and the four limiting holes 334 are arranged on four corners of the substrate 332 . Correspondingly, there are also four limiting members, and the four limiting members are arranged at four corners of the base plate 332 through four limiting holes 334 .

Specifically, as shown in FIG. 2 , the shape of the reference contact block 336 is a cuboid, and there are multiple reference contact blocks 336 , and the ends of the multiple reference contact blocks 336 away from the substrate 332 jointly form a reference contact surface.

In other embodiments, there may be one reference contact block 336 . In this case, the end surface of the reference contact block 336 away from the base plate 332 is ring-shaped.

As shown in FIG. 2 , the clamp bottom mold 330 is rectangular, and there are four pin holes 334 , and the four pin holes 334 are arranged on four corners of the clamp bottom mold 330 . Correspondingly, there are also four limiting members, and the four limiting members are arranged at four corners of the jig bottom mold 330 .

The clamp 100 adopts the bottom die of the clamp to carry the workpiece 200 , and a plurality of cylinders 20 are arranged around the bottom die of the clamp, and the cylinders 20 drive the cylinder claws 22 to press down to clamp the workpiece 200 . Compared with the traditional top-up clamp, this clamp 100 is a downward-pressing clamp, and the cylinder 20 can still be positioned well when the power of the cylinder 20 is insufficient, so that it is not easy to cause positioning errors.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. a fixture, for the processing of workpiece, is characterized in that, comprising: base plate, fixture bed die and cylinder;

Described fixture bed die is arranged on the middle part of described base plate, and described fixture bed die is for carrying described workpiece;

Described cylinder is multiple, and multiple described cylinder is arranged on described base plate around described fixture bed die, and described cylinder is provided with cylinder paw away from one end of described base plate, and described cylinder presses down for driving described cylinder paw thus clamps described workpiece.

2. fixture according to claim 1, it is characterized in that, described fixture bed die comprises substrate and is arranged on the multiple spacing holes on a surface of described substrate, and described spacing hole is used for fixing locating part, and described locating part is for limiting the movement of described workpiece in described substrate place plane.

3. fixture according to claim 2, is characterized in that, described substrate is rectangle, and described spacing hole is four, and four described spacing holes are arranged on four angles of described substrate;

Described locating part is four, and four described locating parts are fixed on four angles of described substrate by four described spacing holes.

4. the fixture according to Claims 2 or 3, is characterized in that, described locating part is pin.

5. fixture according to claim 2; it is characterized in that; described fixture bed die also comprises benchmark contact block; described benchmark contact block and multiple described spacing hole are arranged on the same surface of described substrate; and multiple described spacing hole is arranged on the periphery of described benchmark contact block, described benchmark contact block is the reference contact faces with described absorption surface away from the end face of one end of described substrate.

6. fixture according to claim 5, is characterized in that, the shape of described benchmark contact block is cuboid, and described benchmark contact block is multiple, and multiple described benchmark contact block forms described reference contact faces jointly away from the end face of one end of described substrate.

7. fixture according to claim 5, is characterized in that, described benchmark contact block is one, and described benchmark contact block is annular away from the end face of one end of described substrate.

8. fixture according to claim 1, is characterized in that, described cylinder is six, and six described cylinders are arranged around described fixture bed die.

9. fixture according to claim 8, is characterized in that, described base plate is rectangle, and two long limits of described base plate are respectively provided with two described cylinders, and two minor faces of described base plate are respectively provided with a described cylinder.

10. fixture according to claim 1, is characterized in that, described workpiece is middle plate or the base plate of mobile terminal device.