CN207824428U - A kind of clamp for machining of thin-wall workpiece - Google Patents

Abstract

The utility model discloses a processing fixture for thin-walled workpieces, relates to the field of EDM processing fixtures, and comprises a base, on which a tooling platform is arranged, and a positioning surface for placing workpieces is arranged on the tooling platform, and the positioning surface is set on the tooling platform The surface and the concave surface that is suitable for the workpiece are symmetrically arranged on the tooling platform on both sides of the positioning surface for pressing the workpiece. The pressing plate assembly includes the pressing plate and the pressing bolts arranged on the pressing plate. A pressing side and a supporting side, one end of the supporting side is connected with one end of the pressing side, the other end of the supporting side is placed on the tooling platform, and the pressing side is connected with the tooling platform through a pressing bolt. The utility model relates to a processing fixture for a thin-walled workpiece, which is simple in operation, does not deform the clamped workpiece, improves the processing efficiency, and ensures the quality of the workpiece.

Description

A processing fixture for thin-walled workpieces

technical field

The utility model belongs to the field of EDM processing fixtures, in particular to a processing fixture for thin-walled workpieces.

Background technique

EDM is often used to process some precision parts, but the existing EDM processing fixtures are cumbersome, especially when processing thin-walled workpieces, the processing fixtures are easy to deform the thin-walled workpieces, and because the design of the back structure requires good air permeability, the processing fixtures When clamping, the acceptance is often uneven, and the workpiece is pinched, which cannot meet the requirements of use.

Contents of the invention

In view of the above defects, the purpose of this utility model is to provide a processing fixture for thin-walled workpieces. The processing fixture for thin-walled workpieces is easy to operate, does not deform the clamped workpiece, improves the processing efficiency, and ensures the quality of the workpiece.

In order to achieve the above object, the technical solution of the utility model is:

A processing fixture for a thin-walled workpiece, comprising a base, a tooling platform is arranged on the base, a positioning surface for placing workpieces is arranged on the tooling platform, and the positioning surface is arranged on the upper surface of the tooling platform and is in contact with the The workpiece is suitable for the concave surface, and two pressure plate assemblies for pressing the workpiece are symmetrically arranged on the tooling platform on both sides of the positioning surface, and the pressure plate assembly includes a pressure plate and a Pressing the bolts, the pressing plate includes a pressing side and a supporting side perpendicular to each other, one end of the supporting side is connected to one end of the pressing side, the other end of the supporting side is placed on the tooling platform, the The pressing edge is connected with the tooling platform through the pressing bolt.

Preferably, there are two positioning surfaces, and the pressing plate assembly is provided on both sides of the two positioning surfaces.

Preferably, a runner groove is arranged on the tooling platform, and the runner groove passes through the positioning surface.

Preferably, a reference hole is provided on the tooling platform, and the reference hole is located on a symmetrical line of the two positioning planes.

Preferably, the pressing edge is provided with an oblong hole, the tooling platform is provided with a threaded hole, and the pressing bolt passes through the oblong hole and is screwed into the threaded hole.

Preferably, a protrusion is provided on the lower surface of the tooling platform, a groove matching the protrusion is provided on the base, and the protrusion is inserted into the groove.

After adopting above-mentioned technical scheme, the beneficial effect of the utility model is:

A processing fixture for a thin-walled workpiece includes a base, a tooling platform is arranged on the base, a positioning surface for placing the workpiece is arranged on the tooling platform, and the positioning surface is a concave surface arranged on the upper surface of the tooling platform and adapted to the workpiece, The tooling platform on both sides of the positioning surface is symmetrically arranged with two pressure plate assemblies for pressing the workpiece. The pressure plate assembly includes a pressure plate and a pressure bolt arranged on the pressure plate. The pressure plate includes a pressure edge and a support edge perpendicular to each other. The support edge One end is connected with one end of the pressing edge, the other end of the supporting edge is placed on the tooling platform, and the pressing edge is connected with the tooling platform through pressing bolts. When working, place the workpiece on the positioning surface, and then tighten the compression bolt downwards, so that the distance between the compression side and the tooling platform is reduced until the compression side is pressed against both sides of the workpiece, thereby fixing the workpiece. Since the workpiece is placed on the positioning surface, and the pressing edge is only pressed against the two sides of the workpiece, even the thin-walled workpiece will not be deformed, which ensures the product quality, and the clamping operation is simple, which improves the work efficiency.

Since there are two positioning surfaces, and both sides of the two positioning surfaces are provided with pressing plate assemblies, two workpieces can be clamped at the same time, thereby improving work efficiency.

Because the runner groove is arranged on the tooling platform, the runner groove passes through the positioning surface, and the workpiece can be conveniently taken and placed by setting the runner groove.

Since the tooling platform is provided with a reference hole, and the reference hole is located on the symmetrical line of the two positioning planes, it can be conveniently used for EDM centering.

In summary, the utility model is a processing fixture for thin-walled workpieces, which solves the cumbersome processing fixtures in the prior art. When clamping thin-walled workpieces, it often accepts unevenly and pinches the workpiece. The utility model relates to a processing fixture for a thin-walled workpiece, which is simple in operation, does not deform the clamped workpiece, improves the processing efficiency, and ensures the quality of the workpiece.

Description of drawings

Fig. 1 is a schematic structural view of a processing fixture for a thin-walled workpiece of the present invention;

Fig. 2 is an exploded schematic diagram of a processing fixture for a thin-walled workpiece of the present invention;

In the figure: 1-base, 2-tooling platform, 4-positioning surface, 5-pressing plate, 51-pressing edge, 52-supporting edge, 53-long round hole, 54-threaded hole, 6-pressing bolt, 7- Runner groove, 8-reference hole, 9-bump, 10-groove.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

As shown in Figure 1 and Figure 2 together, a kind of processing fixture of thin-walled workpiece comprises base 1, and base 1 is provided with tooling platform 2, and tooling platform 2 is provided with the positioning surface 4 that is used to place workpiece, and positioning surface 4 is The concave surface that is arranged on the upper surface of the tooling platform 2 and fits the workpiece, and the tooling platform 2 on both sides of the positioning surface 4 are symmetrically provided with two pressing plate assemblies for pressing the workpiece. The pressing plate assembly includes a pressing plate 5 and a Pressing bolt 6, pressing plate 5 comprises mutually perpendicular pressing edge 51 and supporting edge 52, and one end of supporting edge 52 is connected with an end of pressing edge 51, and the other end of supporting edge 52 is placed on the tooling platform 2, and pressing edge 51 is connected with the tooling platform 2 through the compression bolt 6 . When working, the workpiece is placed on the positioning surface 4, and then the compression bolt 6 is tightened downwards, so that the distance between the compression side 51 and the tooling platform 2 is reduced until the compression side 51 is pressed against the two sides of the workpiece, Therefore, the workpiece is fixed, since the workpiece is placed on the positioning surface 4, and the pressing edge 51 is only pressed against the two sides of the workpiece, so even a thin-walled workpiece will not be deformed, the product quality is guaranteed, and the clamping operation is simple ,Improved work efficiency.

As shown in FIG. 1 , in this embodiment, there are two positioning surfaces 4 , and both sides of the two positioning surfaces 4 are provided with clamping plate assemblies, so two workpieces can be clamped at the same time, thereby improving work efficiency.

As shown in FIG. 2 , in this embodiment, a runner groove 7 is provided on the tooling platform 2 , and the runner groove 7 passes through the positioning surface 4 . The runner groove 7 can facilitate the pick-and-place of workpieces.

As shown together in FIG. 2 , in this embodiment, the tooling platform 2 is provided with a reference hole 8 , and the reference hole 8 is located on the symmetrical line of the two positioning surfaces 4 , which can be conveniently used for EDM centering.

As shown in Figure 2, in the present embodiment, an oblong hole 53 is provided on the pressing edge 51, and a threaded hole 54 is provided on the tooling platform, and the pressing bolt 6 passes through the oblong hole 53 and is threaded in the threaded hole 54, which can be Adjust the depth of the compression bolt 6 in the threaded hole 54, thereby adjusting the up and down of the compression edge 51.

As shown in Figure 2, the lower surface of the tooling platform 2 is provided with a bump 9, and the base 1 is provided with a groove 10 matching the bump 9, and the bump 9 is inserted in the groove 10, and the tooling platform 2 and the base 1 They are connected by bumps 9 and grooves 10, and the connection method is simple and stable.

The working process of a kind of processing fixture of the utility model thin-walled workpiece is as follows:

As shown in Fig. 1 and Fig. 2 together, first two workpieces are respectively placed on the two positioning surfaces 4, and then the compression bolts 6 on both sides of the positioning surfaces 4 are respectively tightened downwards, so that the compression side 51 is aligned with the tooling platform 2 The distance between them is reduced until the compression edge 51 is pressed against the two sides of the workpiece, thereby fixing the workpiece. After the workpiece is processed by EDM, the compression bolt 6 is screwed out upwards so that the compression edge 51 is away from the workpiece. Thereby, the workpiece can be lifted and taken out along one side of the runner groove 7 . Since the workpiece is placed on the positioning surface 4, and the pressing edge 51 is only pressed against the two sides of the workpiece, even a thin-walled workpiece will not be deformed, ensuring product quality, and the clamping operation is simple, improving work efficiency .

From the above working process, it can be seen that a thin-walled workpiece processing fixture, through the design of the positioning surface 4 and the pressing plate assembly, makes the clamping of the thin-walled workpiece easy to operate, and the clamped workpiece does not deform, which improves the processing efficiency and ensures product quality.

Above-mentioned embodiment is only the example of specific implementation of the present utility model, and the scope of protection of the present utility model is as the criterion with the content of the claim, any equivalent transformation that is carried out based on the technical revelation of the present utility model is also protected by the utility model. within range.

Claims (6)

1. a kind of clamp for machining of thin-wall workpiece, including pedestal, which is characterized in that be provided with tooling platform, institute on the pedestal State the positioning surface being provided on tooling platform for placing workpiece, the positioning surface be setting in the tooling platform upper surface and Concave surface compatible with the workpiece is symmetrical arranged on the tooling platform of the both sides of the positioning surface and is useful for described in compression Two Anchor plate kits of workpiece, the Anchor plate kit include pressing plate and the hold-down bolt that is arranged on the pressing plate, the pressing plate Including orthogonal compression side and support edge, one end of the support edge is connect with described one end for compressing side, the support The other end on side is placed on the tooling platform, and the compression side is connect by the hold-down bolt with the tooling platform.

2. a kind of clamp for machining of thin-wall workpiece as described in claim 1, which is characterized in that the positioning surface is two, two The both sides of a positioning surface are both provided with the Anchor plate kit.

3. a kind of clamp for machining of thin-wall workpiece as claimed in claim 1 or 2, which is characterized in that set on the tooling platform It is equipped with flow path groove, the flow path groove passes through the positioning surface.

4. a kind of clamp for machining of thin-wall workpiece as claimed in claim 2, which is characterized in that be provided on the tooling platform Datum hole, and the datum hole is located on two positioning surface line of symmetries.

5. a kind of clamp for machining of thin-wall workpiece as described in claim 1, which is characterized in that be provided with length on the compression side Circular hole, threaded hole is provided on the tooling platform, and the hold-down bolt is threadedly attached in described across the slotted hole In threaded hole.

6. a kind of clamp for machining of thin-wall workpiece as described in claim 1, which is characterized in that the lower surface of the tooling platform It is provided with convex block, is provided on the pedestal and is plugged in the groove with the matched groove of the convex block, the convex block.