CN210879235U

CN210879235U - Multi-point positioning special fixture for flat grinding of cutter block

Info

Publication number: CN210879235U
Application number: CN201921970675.3U
Authority: CN
Inventors: 王章永
Original assignee: Chongqing Pingwei Automotive Technology Co ltd
Current assignee: Chongqing Pingwei Automotive Technology Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-06-30
Anticipated expiration: 2029-11-14

Abstract

The utility model discloses a sword piece flat grinding special fixture of multiple spot location, which comprises a positioning plate, the lower surface of locating plate has the absorption locating surface, and the circumference edge distribution of upper surface has the collateral branch fagging that upwards extends, each the collateral branch fagging encloses into the centre gripping inner chamber, it has the screw hole to equally divide cloth on the collateral branch fagging, and equal threaded connection has positioning bolt on the screw hole, and positioning bolt passes the screw hole along collateral branch fagging wall thickness direction and stretches into the centre gripping inner chamber. The utility model has the advantages that: the positioning bolts are tightly propped against the circumferential direction of the cutter block in a lattice distribution mode, so that the clamping force is fully ensured, and the grinding machine has higher grinding precision. By clamping the cutter blocks in the mode, the positioning bolts distributed in an array can adapt to various irregular cutter blocks, and the cutter block clamping device has the technical advantages of convenience in clamping, high clamping efficiency and contribution to realizing large-batch processing.

Description

Multi-point positioning special fixture for flat grinding of cutter block

Technical Field

The utility model belongs to the technical field of mould foundry goods sword piece processing, concretely relates to sword piece flat grinding special fixture of multiple spot location.

Background

The cutter blocks are generally distributed and arranged on the periphery of a male die of the die, and cutting edges are arranged on the cutter blocks and used for shearing blanks. In the design and processing process of a set of dies, the processing of the cutter block occupies a large proportion. Because the appearance of the cutter block is extremely irregular and all the surfaces are blank surfaces before mechanical processing, the cutter block is not beneficial to clamping during processing.

On the basis of a knife block blank, characteristics such as a bottom plane, a back plane (a joint surface with a die holder body in the vertical direction), a screw through hole, a pin hole key groove and the like are generally required to be processed, and when a die is assembled, parts such as the bottom plane, the back plane and the like of the knife block need to be matched with the die holder for installation, so that the planes generally need to be finely ground on a grinding machine to ensure the assembly precision of the knife block. Most of the overall profiles of the cutter blocks are irregular, and when the cutter blocks are ground on a grinding machine, due to the lack of clamping reference surfaces, the cutter blocks are very difficult to clamp, and for different cutter blocks, an independent clamping tool needs to be designed, so that the grinding efficiency is seriously influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a cutter block flat grinding special fixture of multiple spot location to solve the inconvenient technical defect of clamp of cutter block on the grinding machine.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

the utility model provides a sword piece flat grinding special fixture of multiple spot location which the key lies in: including the locating plate, the lower surface of locating plate is formed with the absorption locating surface, and the circumference edge distribution of upper surface has the collateral branch fagging that upwards extends, each the collateral branch fagging encloses into the centre gripping inner chamber, all be equipped with array distribution's screw hole on the collateral branch fagging, all dispose positioning bolt on the screw hole, and positioning bolt all can follow collateral branch fagging wall thickness direction and pass the screw hole and stretch into the centre gripping inner chamber.

Adopt above-mentioned structure, adsorb the adsorption positioning surface of locating plate on the grinding machine with the mode of electromagnetic actuation earlier, put into the centre gripping intracavity with anomalous sword piece again, manual fine setting makes and treats that the machined surface keeps the level, then inwards screw up positioning bolt all around, make the sword piece fix in the centre gripping intracavity, thereby accomplish the clamping of sword piece, positioning bolt supports the circumference at the sword piece with the mode of dot matrix distribution, the atress distribution is more even, the clamping-force has fully been guaranteed, the grinding machine has higher abrasive machining precision. Meanwhile, the clamping mode can adapt to various irregular cutter blocks, and has the technical advantages of convenience in clamping, high clamping efficiency and contribution to realizing large-batch processing.

Preferably, the method comprises the following steps: the end part of the inner end of the positioning bolt is of a conical structure. By adopting the structure, the positioning effect can be increased.

Preferably, the method comprises the following steps: the locating plate is a square plate. By adopting the structure, the processing and the manufacturing are convenient.

Preferably, the method comprises the following steps: the roughness of the adsorption positioning surface is Ra1.6. By adopting the structure, the precision of the adsorption installation of the clamp on the grinding machine can be ensured.

Preferably, the method comprises the following steps: the side supporting plates are four in total, and the adjacent two side supporting plates are fixedly connected through fastening bolts. By adopting the structure, the clamping inner cavity can form a square structure, and the assembly of the clamp is facilitated.

Preferably, the method comprises the following steps: the positioning bolts are distributed on the corresponding side supporting plates in a rectangular array. By adopting the structure, the clamping and positioning device has better clamping and positioning effects.

Compared with the prior art, the beneficial effects of the utility model are that:

adopt the utility model provides a cutter block flat grinding special fixture of multiple spot location, positioning bolt support tightly in the circumference of cutter block with the mode of dot matrix distribution, have fully guaranteed the clamping-force, make the grinding machine have higher abrasive machining precision. Meanwhile, the cutter blocks are clamped in the mode, the positioning bolts distributed in an array mode can adapt to various irregular cutter blocks, and the cutter block clamping device has the technical advantages of convenience in clamping, high clamping efficiency and benefit for realizing large-batch processing.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is another schematic structural view of the present invention (with the adsorption positioning surface facing upwards);

fig. 3 is a reference diagram of the usage status of the present invention.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in figures 1 and 2, a cutter block flat grinding special fixture of multiple spot location, including locating plate 1 that is square platelike structure, the lower surface of locating plate 1 is equipped with adsorbs locating surface 1a, the roughness that adsorbs locating surface 1a is 1.6, the circumference edge distribution of 1 upper surface of locating plate has the collateral branch fagging 2 of upwards extending, totally four, and through fastening bolt 5 fixed connection between two adjacent collateral branch faggings 2, four collateral branch faggings 2 enclose into centre gripping inner chamber 3, it has screw hole 2a to equally divide on each fagging collateral branch 2, equal threaded connection has positioning bolt 4 on screw hole 2a, and positioning bolt 4 passes screw hole 2a along the 2 wall thickness directions of collateral branch fagging and stretches into in the centre gripping inner chamber 3.

As shown in fig. 3, the clamping table of the grinding machine has an electromagnetic adsorption function, the adsorption positioning surface 1a of the fixture is adsorbed on the grinding machine, the irregular cutter block 6 is placed in the clamping inner cavity 3, the surface to be machined is kept horizontal through manual fine adjustment, and then the positioning bolts 4 around the cutter block 6 are screwed down to fix the cutter block 6 in the clamping inner cavity 3, so that the clamping of the cutter block 6 is completed.

Positioning bolt 4 is rectangular array and distributes on the collateral branch fagging 2 that corresponds, and positioning bolt 4 supports tightly in 6 circumference of sword piece with the mode that the dot matrix distributes, makes 6 atress distributions of sword piece more even, has fully guaranteed the clamping-force, helps guaranteeing the abrasive machining precision.

As shown in fig. 1, the end of the positioning bolt 4 extending into the clamping cavity 3 is a conical structure, and the end of the conical structure can reduce the contact area between the positioning bolt 4 and the side wall of the cutter block 6, thereby improving the positioning effect.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides a sword piece flat grinding special fixture of multiple spot location which characterized in that: including locating plate (1), the lower surface of locating plate (1) is formed with adsorbs locating surface (1a), and the circumference edge distribution of upper surface has collateral backup pad (2) that upwards extend, each collateral backup pad (2) enclose into centre gripping inner chamber (3), all be equipped with array distribution's screw hole (2a) on collateral backup pad (2), all dispose positioning bolt (4) on screw hole (2a), and positioning bolt (4) homoenergetic enough follow collateral backup pad (2) wall thickness direction and pass screw hole (2a) and stretch into centre gripping inner chamber (3).

2. The multi-point positioning special fixture for flat grinding of the cutter block according to claim 1, characterized in that: the inner end part of the positioning bolt (4) is of a conical structure.

3. The multi-point positioning tool block flat grinding special fixture as claimed in claim 1 or 2, wherein: the positioning plate (1) is a square plate.

4. The multi-point positioning tool block flat grinding special fixture as claimed in claim 3, wherein: the roughness of the adsorption positioning surface (1a) is Ra1.6.

5. The multi-point positioning tool block flat grinding special fixture as claimed in claim 4, wherein: the side supporting plates (2) are four in total, and the adjacent two side supporting plates are fixedly connected through fastening bolts (5).

6. The multi-point positioning special fixture for flat grinding of the cutter block according to claim 1, characterized in that: the positioning bolts (4) are distributed on the corresponding side supporting plates (2) in a rectangular array.