Metal workpiece machining clamp tool

Abstract

The utility model discloses a metal workpiece machining clamp tool which comprises a workpiece machining clamp body, a protruding workpiece connecting table is arranged on the workpiece machining clamp body, and a first inner hole expansion clamping device used for stretching into an inner hole of a workpiece to clamp the workpiece is arranged on the workpiece connecting table. A first workpiece connecting hole and a second workpiece connecting hole are formed in the positions, on the left side and the right side of the first inner hole expansion clamping device, of the workpiece connecting table correspondingly, and a first auxiliary connecting pin is arranged at the position, on the outer side of the first workpiece connecting hole, of the edge of the workpiece connecting table. According to the metal workpiece machining clamp tool, by arranging the first inner hole expansion clamping device, the second inner hole expansion clamping device, the third inner hole expansion clamping device and the fourth inner hole expansion clamping device, a workpiece is clamped by applying force from inside to outside from an inner hole of the workpiece, and machining of the outer surface of the workpiece cannot be affected; all space is reserved for machining of the outer surface of the workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing fixtures, in particular to a metal workpiece processing fixture tooling. Background Art

[0002] At present, the existing technology often uses CNC machine tools to process metal workpieces. Metal processing uses clamps, but the current clamps usually only fix the entire workpiece. During the processing, as the workpiece is cut into multiple parts, processing waste will fall off, affecting the processing of the CNC machine tool. In addition, the processing waste cannot be fixed or is not fixed firmly, which can easily lead to instability of the workpiece and affect the accuracy of the processed workpiece. The existing technology also has the problem that if the workpiece is installed too tightly, it will be difficult to remove, and if it is not installed tightly, it will shake and affect the processing. Therefore, how to fix each area of ​​the workpiece to be processed and facilitate installation is a problem that the existing technology needs to solve. Utility Model Content

[0003] The purpose of the utility model is to provide a metal workpiece processing fixture to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal workpiece processing fixture tooling, comprising a workpiece processing fixture body, the workpiece processing fixture body having a raised workpiece connecting platform, the workpiece connecting platform is provided with a first inner hole expansion clamp for extending into the inner hole of the workpiece to clamp the workpiece,

[0005] A first workpiece fixing pin is provided on the workpiece connecting platform at the lower side of the first inner hole expansion clamp.

[0006] A first workpiece assembly clearance groove is arranged on the right side of the workpiece processing fixture body, and a second workpiece fixing pin is arranged on the workpiece connecting platform below the first workpiece assembly clearance groove.

[0007] The first workpiece connection hole and the second workpiece connection hole are respectively arranged on the workpiece connection platforms on the left and right sides of the first inner hole expansion clamp, and a first auxiliary connection pin is arranged on the edge of the workpiece connection platform outside the first workpiece connection hole.

[0008] The first central workpiece connecting hole is arranged in the middle of the workpiece processing fixture body.

[0009] Furthermore, on the workpiece connecting platform, a first inner hole expansion clamp, a second inner hole expansion clamp, a third inner hole expansion clamp and a fourth inner hole expansion clamp are fixedly arranged in a parallelogram array.

[0010] Furthermore, a third workpiece fixing pin and a fourth workpiece fixing pin are provided on the workpiece connecting table at a position where the first workpiece fixing pin and the second workpiece fixing pin are rotated 180° around the center point of the workpiece processing fixture body.

[0011] Furthermore, a second workpiece assembly clearance groove is provided on the workpiece connecting platform at a position where the first workpiece assembly clearance groove is rotated 180° around the center point of the workpiece processing fixture body.

[0012] Furthermore, a second auxiliary connecting pin is provided on the workpiece connecting platform at a position where the first auxiliary connecting pin is rotated 180° around the center point of the workpiece processing fixture body.

[0013] Furthermore, a third workpiece connecting hole is provided on the workpiece connecting platform inside the second workpiece fixing pin.

[0014] Furthermore, a fourth workpiece connecting hole, a fifth workpiece connecting hole and a sixth workpiece connecting hole are provided on the workpiece connecting table which is rotated 180° around the center point of the workpiece processing fixture body, wherein the first workpiece connecting hole, the second workpiece connecting hole and the third workpiece connecting hole are provided.

[0015] Furthermore, a first central workpiece connecting hole and a second central workpiece connecting hole are symmetrically arranged on the workpiece processing fixture body.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The metal workpiece processing fixture tooling, by providing a first inner hole expansion clamp, a second inner hole expansion clamp, a third inner hole expansion clamp and a fourth inner hole expansion clamp, can clamp the workpiece from the inner hole of the workpiece from the inside out, without affecting the outer surface processing of the workpiece, leaving all space for the outer surface processing of the workpiece;

[0018] The first workpiece fixing pin, the second workpiece fixing pin, the third workpiece fixing pin, the fourth workpiece fixing pin, the first auxiliary connecting pin and the second auxiliary connecting pin can fix different areas of the workpiece to be processed, ensure the stability of the workpiece to be processed, and after the workpiece is cut, the processing waste is still fixed on the metal workpiece processing fixture;

[0019] The first workpiece connecting hole, the second workpiece connecting hole, the third workpiece connecting hole, the fourth workpiece connecting hole, the fifth workpiece connecting hole, the sixth workpiece connecting hole, the first central workpiece connecting hole and the second central workpiece connecting hole can fix more positions of the processed workpiece by connecting pins or connecting rods when more areas need to be processed;

[0020] The metal workpiece processing fixture is 180° centrally symmetrical as a whole, and can be used to process two completely identical or symmetrical workpieces at one time, thereby doubling the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view structural schematic diagram of the metal workpiece processing fixture tooling of the utility model;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the metal workpiece processing fixture tooling of the utility model.

[0023] In the figure: 310, workpiece processing fixture body; 311, workpiece connecting platform; 321, first inner hole expansion clamp; 322, second inner hole expansion clamp; 323, third inner hole expansion clamp; 324, fourth inner hole expansion clamp; 331, first workpiece fixing pin; 332, second workpiece fixing pin; 333, third workpiece fixing pin; 334, fourth workpiece fixing pin; 351, first auxiliary connecting pin; 352, second auxiliary connecting pin; 361, first workpiece connecting hole; 362, second workpiece connecting hole; 363, third workpiece connecting hole; 364, fourth workpiece connecting hole; 365, fifth workpiece connecting hole; 366, sixth workpiece connecting hole; 371, first central workpiece connecting hole; 372, second central workpiece connecting hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-2 As shown, the utility model provides a technical solution: a metal workpiece processing fixture tool, including a workpiece processing fixture body 310, the workpiece processing fixture body 310 has a protruding workpiece connecting platform 311, and the workpiece connecting platform 311 is provided with a first inner hole expansion clamp 321 for extending into the inner hole of the workpiece to clamp the workpiece,

[0026] A first workpiece fixing pin 331 is provided on the workpiece connecting platform 311 below the first inner hole expansion clamp 321.

[0027] A first workpiece assembly clearance groove 341 is disposed on the right side of the workpiece processing fixture body 310, and a second workpiece fixing pin 332 is disposed on the workpiece connecting platform 311 below the first workpiece assembly clearance groove 341.

[0028] A first workpiece connecting hole 361 and a second workpiece connecting hole 362 are respectively provided on the workpiece connecting platform 311 on the left and right sides of the first inner hole expansion clamp 321, and a first auxiliary connecting pin 351 is provided on the edge of the workpiece connecting platform 311 outside the first workpiece connecting hole 361.

[0029] The first central workpiece connecting hole 371 is disposed in the middle of the workpiece machining fixture body 310 .

[0030] Furthermore, on the workpiece connecting platform 311, a first inner hole expansion clamp 321, a second inner hole expansion clamp 322, a third inner hole expansion clamp 323 and a fourth inner hole expansion clamp 324 are fixedly arranged in a parallelogram array.

[0031] Furthermore, a third workpiece fixing pin 333 and a fourth workpiece fixing pin 334 are provided on the workpiece connecting platform 311 at a position where the first workpiece fixing pin 331 and the second workpiece fixing pin 332 are rotated 180° around the center point of the workpiece machining fixture body 310 .

[0032] Furthermore, a second workpiece assembly clearance groove 342 is provided on the workpiece connecting platform 311 at a position rotated 180° around the center point of the workpiece processing fixture body 310 from the first workpiece assembly clearance groove 341 .

[0033] Furthermore, a second auxiliary connecting pin 352 is provided on the workpiece connecting platform 311 at a position where the first auxiliary connecting pin 351 is rotated 180° around the center point of the workpiece processing fixture body 310 .

[0034] Furthermore, a third workpiece connecting hole 363 is provided on the workpiece connecting platform 311 inside the second workpiece fixing pin 332 .

[0035] Furthermore, the first workpiece connecting hole 361, the second workpiece connecting hole 362 and the third workpiece connecting hole 363 are provided with a fourth workpiece connecting hole 364, a fifth workpiece connecting hole 365 and a sixth workpiece connecting hole 366 on the workpiece connecting table 311 which is rotated 180° around the center point of the workpiece processing fixture body 310.

[0036] Furthermore, the workpiece processing fixture body 310 is symmetrically provided with a first central workpiece connecting hole 371 and a second central workpiece connecting hole 372 in the middle.

[0037] The first inner hole expansion clamp 321 is circular, with a plurality of slits on its upper part, and an integrated circular structure at the bottom with a threaded hole in the center. A bolt is connected in the threaded hole. The end diameter of the bolt is smaller than the threaded hole and the middle diameter is larger than the threaded hole. The bolt is rotated to gradually penetrate into the first inner hole expansion clamp 321. The bolt will squeeze the part with slits on the outside of the first inner hole expansion clamp 321, so that the first inner hole expansion clamp 321 expands. An inner hole corresponding to the first inner hole expansion clamp 321 is set on the workpiece, and the first inner hole expansion clamp 321 clamps the workpiece from the inside of the inner hole of the workpiece.

[0038] Working principle: This kind of metal workpiece processing fixture, by setting the first inner hole expansion clamp, the second inner hole expansion clamp, the third inner hole expansion clamp and the fourth inner hole expansion clamp, will clamp the workpiece from the inside to the outside through the inner hole of the workpiece, will not affect the outer surface processing of the workpiece, and leave all space for the outer surface processing of the workpiece;

[0039] The first workpiece fixing pin, the second workpiece fixing pin, the third workpiece fixing pin, the fourth workpiece fixing pin, the first auxiliary connecting pin and the second auxiliary connecting pin can fix different areas of the workpiece to be processed, ensure the stability of the workpiece to be processed, and after the workpiece is cut, the processing waste is still fixed on the metal workpiece processing fixture;

[0040] The first workpiece connecting hole, the second workpiece connecting hole, the third workpiece connecting hole, the fourth workpiece connecting hole, the fifth workpiece connecting hole, the sixth workpiece connecting hole, the first central workpiece connecting hole and the second central workpiece connecting hole can fix more positions of the processed workpiece by connecting pins or connecting rods when more areas need to be processed;

[0041] The metal workpiece processing fixture is 180° centrally symmetrical as a whole, and can be used to process two completely identical or symmetrical workpieces at one time, thereby doubling the processing efficiency.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal workpiece processing fixture, characterized in that: The workpiece processing fixture comprises a workpiece processing fixture body (310), the workpiece processing fixture body (310) is provided with a protruding workpiece connecting platform (311), the workpiece connecting platform (311) is provided with a first inner hole expansion clamp (321) for extending into the inner hole of the workpiece to clamp the workpiece, A first workpiece fixing pin (331) is provided on the workpiece connecting platform (311) at the lower side of the first inner hole expansion clamp (321). A first workpiece assembly clearance groove (341) is arranged on the right side of the workpiece processing fixture body (310), and a second workpiece fixing pin (332) is arranged on the workpiece connecting platform (311) below the first workpiece assembly clearance groove (341). A first workpiece connecting hole (361) and a second workpiece connecting hole (362) are respectively provided on the workpiece connecting platform (311) on the left and right sides of the first inner hole expansion clamp (321), and a first auxiliary connecting pin (351) is provided on the edge of the workpiece connecting platform (311) outside the first workpiece connecting hole (361). The first central workpiece connecting hole (371) is arranged in the middle of the workpiece processing fixture body (310).

2. A metal workpiece processing fixture according to claim 1, characterized in that: A first inner hole expansion clamp (321), a second inner hole expansion clamp (322), a third inner hole expansion clamp (323) and a fourth inner hole expansion clamp (324) are fixedly arranged in a parallelogram array on the workpiece connecting platform (311).

3. A metal workpiece processing fixture according to claim 1, characterized in that: A third workpiece fixing pin (333) and a fourth workpiece fixing pin (334) are provided on the workpiece connecting platform (311) at a position where the first workpiece fixing pin (331) and the second workpiece fixing pin (332) are rotated 180 degrees around the center point of the workpiece processing fixture body (310).

4. The metal workpiece processing fixture according to claim 1, characterized in that: A second workpiece assembly clearance groove (342) is provided on the workpiece connecting platform (311) at a position where the first workpiece assembly clearance groove (341) is rotated 180° around the center point of the workpiece processing fixture body (310).

5. The metal workpiece processing fixture according to claim 1, characterized in that: A second auxiliary connecting pin (352) is provided on the workpiece connecting platform (311) at a position where the first auxiliary connecting pin (351) is rotated 180° around the center point of the workpiece processing fixture body (310).

6. The metal workpiece processing fixture according to claim 1, characterized in that: A third workpiece connecting hole (363) is provided on the workpiece connecting platform (311) inside the second workpiece fixing pin (332).

7. A metal workpiece processing fixture according to claim 6, characterized in that: The first workpiece connecting hole (361), the second workpiece connecting hole (362) and the third workpiece connecting hole (363) are rotated 180 degrees around the center point of the workpiece processing fixture body (310) to form a fourth workpiece connecting hole (364), a fifth workpiece connecting hole (365) and a sixth workpiece connecting hole (366).

8. The metal workpiece processing fixture according to claim 1, characterized in that: The workpiece processing fixture body (310) is symmetrically provided with a first central workpiece connecting hole (371) and a second central workpiece connecting hole (372) in the middle.

Images