Continuous machining clamp system for metal parts

Abstract

The utility model discloses a continuous processing fixture system of metal parts, including initial processing fixture, fixture frock connecting seat, work piece processing fixture and horizontal fixture, initial processing fixture is provided in the obverse side of fixture frock connecting seat, work piece processing fixture is provided behind fixture frock connecting seat, and horizontal fixture is provided in the fixture frock connecting seat. The horizontal clamp is arranged on the upper surface of the clamp tool connecting base and comprises a horizontal machining clamp body, a part connecting boss and a pressing block connecting column, and the part connecting boss is fixed to the horizontal machining clamp body. According to the continuous machining clamp system for the metal parts, machined workpieces or parts can be clamped, three clamps are arranged in one machine tool, and the workpieces or parts are mounted, machined and dismounted in the same numerical control machine tool according to machining steps after one-time machining; workers do not need to move back and forth to multiple numerical control machine tools for carrying and operation, and the machining efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing fixtures, in particular to a continuous processing fixture system for metal parts. Background Art

[0002] The technical defects of the metal processing fixtures in the prior art are:

[0003] When using CNC machine tools to process metal, it is necessary to use fixtures to clamp the workpiece or parts to be processed, and then process the workpiece or parts. One surface of the workpiece or part can be processed each time. When multiple surfaces need to be processed, multiple CNC machine tools are used, and fixtures are set in each machine tool. Then, the workpiece or parts are installed, processed and disassembled one by one in multiple CNC machine tools according to the processing steps. The staff needs to go back and forth between multiple CNC machine tools for handling and operation, and the processing efficiency is low;

[0004] Each CNC machine tool can only process one surface and then needs to be replaced, which reduces the utilization rate of the CNC machine tool.

[0005] Since the processing errors of multiple CNC machine tools are different, the errors after processing by multiple CNC machine tools will accumulate. The errors of the parts finally processed are the superposition of multiple CNC machine tools. Although the errors of each CNC machine tool meet the standards, they often exceed the standards after superposition, resulting in poor processing accuracy. Utility Model Content

[0006] The purpose of the utility model is to provide a continuous processing fixture system for metal parts to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a continuous processing fixture system for metal parts, comprising an initial processing fixture, a fixture tooling connection seat, a workpiece processing fixture and a horizontal fixture, wherein the initial processing fixture is arranged on the front of the fixture tooling connection seat, the workpiece processing fixture is arranged on the back of the fixture tooling connection seat, and the horizontal fixture is arranged on the upper surface of the fixture tooling connection seat.

[0008] The horizontal fixture comprises a horizontal processing fixture body, a part connecting boss, and a clamping block connecting column. The part connecting boss is fixed on the horizontal processing fixture body, and the clamping block connecting column is fixed on the part connecting boss.

[0009] Furthermore, initial assembly clearance grooves are set on both sides of the initial processing fixture, and limit clamping mechanisms are set on the upper and lower parts of the initial processing fixture. A side limit fixing pin is set on one side of the initial processing fixture, and a side ball head movable pin is set on the other side of the initial processing fixture. An upper ball head movable pin is set between the upper limit clamping mechanisms of the initial processing fixture, and a lower limit fixing pin is set between the lower limit clamping mechanisms of the initial processing fixture.

[0010] Furthermore, the top of the side ball head movable pin is spherical, and a side positioning blind hole is provided at the lower side position of the initial assembly yield groove on the right side of the initial processing fixture, and the bottom ball joint of the side ball head movable pin is connected to the side positioning blind hole.

[0011] Furthermore, the fixture tooling connection seat comprises a fixture tooling connection seat body, the front, rear and upper surfaces of the fixture tooling connection seat body are provided with a plurality of connection holes for connecting the fixture tooling, and the tooling connection base is fixedly connected to the bottom of the fixture tooling connection seat body.

[0012] The first base connection block is arranged on the front side of the tool connection base, and the first base connection block is respectively connected to the tool connection base and the machine tool connection base by bolts.

[0013] The second chassis connection block is arranged on the side of the tool connection base, and the second chassis connection block is respectively connected to the tool connection base and the machine tool connection base by bolts.

[0014] The machine tool connecting turntable is fixedly connected to the bottom of the machine tool connecting base.

[0015] Furthermore, the fixture tooling connection seat body is in a square box shape.

[0016] Furthermore, a plurality of horizontal fixture connection holes for connecting the top horizontal fixture are provided on the upper surface of the fixture fixture connection seat body.

[0017] Further, the workpiece processing fixture comprises a workpiece processing fixture body, the workpiece processing fixture body has a raised workpiece connecting platform, and 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.

[0018] A first workpiece fixing pin is arranged on the workpiece connecting platform at the lower side of the inner hole expansion clamp.

[0019] 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.

[0020] The workpiece connection platforms on the left and right sides of the inner hole expansion clamp are respectively provided with a first workpiece connection hole and a second workpiece connection hole, and the edge of the workpiece connection platform outside the first workpiece connection hole is provided with a first auxiliary connection pin.

[0021] The first central workpiece connecting hole is arranged in the middle of the workpiece processing fixture body.

[0022] Furthermore, 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 are fixed on the workpiece connecting platform in a parallelogram array.

[0023] Furthermore, the part connection boss includes, from left to right, a dovetail connection portion, a left channel portion, a central arc portion, a right arc channel portion and a right circular end.

[0024] Furthermore, the clamping block connecting column includes a first clamping block connecting column and a second clamping block connecting column, the first clamping block connecting column is connected to the right circular end head, and the second clamping block connecting column is connected to the rear edge of the right arc-shaped channel portion.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] The continuous processing fixture system and method of metal parts clamps the workpiece or part to be processed when a CNC machine tool is used to process metal, and then processes the workpiece or part. The surfaces of multiple workpieces or parts can be processed each time. Multiple surfaces are processed by one CNC machine tool. Three fixtures are set in one machine tool. After processing once, the workpiece or part is installed, processed and disassembled in the same CNC machine tool according to the processing steps. The staff does not need to go back and forth between multiple CNC machine tools for transportation and operation, and the processing efficiency is high.

[0027] Each CNC machine tool can process three surfaces, and there is no need to replace the CNC machine tool, which has a high utilization rate of the CNC machine tool.

[0028] Since the processing error of the same CNC machine tool is constant, the error after three processings by the same CNC machine tool will not accumulate. The error of the parts finally processed is the error of a CNC machine tool, and the processing accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view structural schematic diagram of an initial processing fixture of the continuous processing fixture system of metal parts of the utility model;

[0030] Figure 2 It is a three-dimensional structural schematic diagram of an initial processing fixture of the continuous processing fixture system of metal parts of the utility model;

[0031] Figure 3 It is a schematic diagram of the structure of the first lower limit clamping mechanism of the initial processing fixture of the continuous processing fixture system of the metal parts of the utility model;

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixture and tooling connection seat of the continuous processing fixture system of the metal parts of the utility model;

[0033] Figure 5 It is a schematic diagram of the side view structure of the fixture tooling connection seat of the continuous processing fixture system of the metal parts of the utility model;

[0034] Figure 6 It is a schematic diagram of the main structure of the fixture tooling connection seat of the continuous processing fixture system of the metal parts of the utility model;

[0035] Figure 7 It is a schematic structural diagram of a tooling connection base and a machine tool connection base of the continuous processing fixture system of metal parts of the utility model;

[0036] Figure 8 It is a front view structural schematic diagram of a workpiece processing fixture of the continuous processing fixture system of metal parts of the utility model;

[0037] Fig. 9 It is a three-dimensional structural schematic diagram of a workpiece processing fixture of the continuous processing fixture system of metal parts of the utility model;

[0038] Fig.10 It is a schematic diagram of the top view of the horizontal fixture of the continuous processing fixture system of metal parts of the utility model;

[0039] Fig.11 It is a three-dimensional structural schematic diagram of a horizontal fixture of the continuous processing fixture system of metal parts of the utility model;

[0040] Fig.12 It is a schematic diagram of the top view of the part connection boss of the horizontal fixture of the continuous processing fixture system of the metal parts of the utility model;

[0041] Fig.13 It is a three-dimensional structural schematic diagram of the continuous processing fixture system of the metal parts of the utility model;

[0042] Fig.14 It is a schematic diagram of the three-dimensional structure of the continuous processing fixture system of the metal parts of the utility model.

[0043] In the figure: 100, initial processing fixture; 120, limit clamping connection block; 121, first lower limit clamping mechanism; 122, second lower limit clamping mechanism; 123, third lower limit clamping mechanism; 124, first upper limit clamping mechanism; 125, second upper limit clamping mechanism; 126, third upper limit clamping mechanism; 127, clamping jaw connecting bolt; 128, half head connecting cylinder; 129, limit clamping jaw; 131, side limit fixing pin; 132, first lower limit fixing pin; 133, second lower limit fixing pin; 141, first upper ball head movable pin; 142, second upper ball head movable pin; 143, side ball head movable pin; 151, first initial assembly clearance groove; 152, second initial assembly clearance groove; 161, first A main positioning groove; 162, a first auxiliary positioning groove; 163, a second auxiliary positioning groove; 164, a third auxiliary positioning groove; 165, a second main positioning groove; 166, a fourth auxiliary positioning groove; 167, a fifth auxiliary positioning groove; 168, a sixth auxiliary positioning groove; 200, a fixture tooling connection seat; 210, a fixture tooling connection seat body; 211, a vertical tooling connection hole; 212, a tooling auxiliary connection hole; 213, a horizontal tooling connection hole; 220, a tooling connection base; 230, a machine tool connection base; 231, a positioning groove; 240, a machine tool connection turntable; 251, a first base connection block; 252, a second chassis connection block; 300, a workpiece processing fixture; 310, a workpiece processing fixture body; 311, a workpiece connection 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; 400, horizontal clamp; 410, horizontal machining clamp Tool body; 420, part connection boss; 421, dovetail connection part; 422, left channel part; 423, central arc part; 424, right arc channel part; 425, right circular end; 431, first part auxiliary connection hole; 432, second part auxiliary connection hole; 433, third part auxiliary connection hole; 434, fourth part auxiliary connection hole; 435, fifth part auxiliary connection hole; 436, sixth part auxiliary connection hole; 437, seventh part auxiliary connection hole; 441, first clamping block connection column; 442, second clamping block connection column; 451, first part positioning pin; 452, second part positioning pin; 453, third part positioning pin; 454, fourth part positioning pin; 455, fifth part positioning pin;456, sixth part positioning pin; 457, seventh part positioning pin; 458, eighth part positioning pin. ; DETAILED DESCRIPTION

[0044] 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.

[0045] like Figure 1-14 As shown, the utility model provides a technical solution: a continuous processing fixture system for metal parts, including an initial processing fixture 100, a fixture tooling connection seat 200, a workpiece processing fixture 300 and a horizontal fixture 400, wherein the initial processing fixture 100 is arranged on the front of the fixture tooling connection seat 200, the workpiece processing fixture 300 is arranged on the back of the fixture tooling connection seat 200, and the horizontal fixture 400 is arranged on the upper surface of the fixture tooling connection seat 200.

[0046] The horizontal clamp 400 includes a horizontal processing clamp body 410 , a part connecting boss 420 , and a clamping block connecting column. The part connecting boss 420 is fixed to the horizontal processing clamp body 410 , and the clamping block connecting column is fixed to the part connecting boss 420 .

[0047] Initial assembly clearance grooves are set on both sides of the initial processing fixture 100, and limit clamping mechanisms are set on the upper and lower parts of the initial processing fixture 100. A side limit fixing pin 131 is set on one side of the initial processing fixture 100, and a side ball head movable pin 143 is set on the other side of the initial processing fixture 100. An upper ball head movable pin is set between the upper limit clamping mechanism of the initial processing fixture 100, and a lower limit fixing pin is set between the lower limit clamping mechanism of the initial processing fixture 100.

[0048] Furthermore, the top of the side ball head movable pin 143 is spherical, and a side positioning blind hole is set at the lower side position of the initial assembly yield groove on the right side of the initial processing fixture 100, and the bottom ball joint of the side ball head movable pin 143 is connected to the side positioning blind hole.

[0049] Furthermore, the limit clamping mechanism includes an upper limit clamping mechanism group and a lower limit clamping mechanism group, the upper limit clamping mechanism group includes a first upper limit clamping mechanism 124, a second upper limit clamping mechanism 125 and a third upper limit clamping mechanism 126 which are sequentially arranged on the upper part of the initial processing fixture 100, and the lower limit clamping mechanism group includes a first lower limit clamping mechanism 121, a second lower limit clamping mechanism 122 and a third lower limit clamping mechanism 123 which are sequentially arranged on the lower part of the initial processing fixture 100.

[0050] Furthermore, a first upper ball head movable pin 141 is provided between the first lower limit clamping mechanism 121 and the second lower limit clamping mechanism 122, and a second upper ball head movable pin 142 is provided between the second lower limit clamping mechanism 122 and the third lower limit clamping mechanism 123.

[0051] A first lower limit fixing pin 132 is disposed between the first upper limit clamping mechanism 124 and the second upper limit clamping mechanism 125 , and a second lower limit fixing pin 133 is disposed between the second upper limit clamping mechanism 125 and the third upper limit clamping mechanism 126 .

[0052] Furthermore, the upper ball head movable pin includes a first upper ball head movable pin 141 and a second upper ball head movable pin 142 , and the lower limit fixing pin includes a first lower limit fixing pin 132 and a second lower limit fixing pin 133 .

[0053] Furthermore, the first lower limit clamping mechanism 121 includes a limit clamping connecting block 120, a half-head connecting tube 128, a limit clamping claw 129 and a clamping claw connecting bolt 127, the limit clamping connecting block 120 is connected to the groove on the edge of the initial processing fixture 100, the half-head connecting tube 128 is fixedly connected to the limit clamping connecting block 120, and the clamping claw connecting bolt 127 passes through the limit clamping claw 129 and is threadedly connected to the half-head connecting tube 128.

[0054] Furthermore, when the clamp connecting bolt 127 is in a screwed-out state, the half-head connecting cylinder 128 and the limit clamping claw 129 are in rotational contact with each other, and when the clamp connecting bolt 127 is in a tightened state, the half-head connecting cylinder 128 and the limit clamping claw 129 are engaged and connected with each other.

[0055] Furthermore, it also includes a first main positioning groove 161, a first auxiliary positioning groove 162, a second auxiliary positioning groove 163, a third auxiliary positioning groove 164, a second main positioning groove 165, a fourth auxiliary positioning groove 166, a fifth auxiliary positioning groove 167 and a sixth auxiliary positioning groove 168 which are arranged in a clockwise and centrally symmetrical rectangular array.

[0056] Furthermore, the initial assembly clearance groove is a rounded rectangular groove used to accommodate the assembler's hand during assembly, and the initial assembly clearance groove includes a first initial assembly clearance groove 151 arranged on the left edge of the initial processing fixture 100 and a second initial assembly clearance groove 152 arranged on the right edge of the initial processing fixture 100.

[0057] The fixture tooling connection seat 200 includes a fixture tooling connection seat body 210, including a fixture tooling connection seat body 210, the front, rear and upper surfaces of the fixture tooling connection seat body 210 are all provided with a plurality of connection holes for connecting the fixture tooling, and the tooling connection base 220 is fixedly connected to the bottom of the fixture tooling connection seat body 210.

[0058] The first base connection block 251 is disposed on the front side of the tooling connection base 220 , and the first base connection block 251 is respectively connected to the tooling connection base 220 and the machine tool connection base 230 by bolts.

[0059] The second chassis connection block 252 is disposed on the side of the tooling connection base 220, and the second chassis connection block 252 is respectively connected to the tooling connection base 220 and the machine tool connection base 230 by bolts.

[0060] The machine tool connection turntable 240 is fixedly connected to the bottom of the machine tool connection base 230 .

[0061] Furthermore, the fixture connecting seat body 210 is in a square box shape.

[0062] Furthermore, the front and rear sides of the fixture tooling connection seat body 210 are both provided with a plurality of vertical tooling connection holes 211 for connecting vertical fixture tools, and the vertical tooling connection holes 211 are arranged in a rectangular array.

[0063] The processing fixture is connected to the vertical tooling connection hole 211 through a connecting pin. The vertical tooling connection holes 211 arranged in a rectangular array are both axially symmetrical and centrally symmetrical to each other, which can satisfy the connection requirements of axially symmetrical and centrally symmetrical connecting pins, and is convenient for the installation of ordinary fixtures, axially symmetrical fixtures and centrally symmetrical fixtures.

[0064] Furthermore, the tooling auxiliary connection hole 212 is provided on the fixture tooling connection seat body 210 inside the vertical tooling connection hole 211 .

[0065] The middle part of the processing fixture is connected to the auxiliary connecting hole 212 of the tooling through a connecting pin to enhance the fixing stability.

[0066] Furthermore, a plurality of horizontal fixture connection holes 213 for connecting the top horizontal fixture are provided on the upper surface of the fixture fixture connection seat body 210 .

[0067] Furthermore, the machine tool connecting turntable 240 is connected to a CNC machine tool.

[0068] Furthermore, the tooling connection base 220 and the machine tool connection base 230 have the same shape and size and fit closely to each other.

[0069] Furthermore, the tool connection base 220 and the machine tool connection base 230 are connected via the first base connection block 251 and the second chassis connection block 252 .

[0070] Furthermore, the first base connection block 251 and the second chassis connection block 252 are perpendicular to each other.

[0071] The first base connection block 251 and the second chassis connection block 252 are arranged in different directions, so that the connection between the tool connection base 220 and the machine tool connection base 230 is stable.

[0072] Furthermore, the front and rear sides of the machine tool connection base 230 are provided with positioning grooves 231 for mounting and positioning with the CNC machine tool.

[0073] When the CNC machine tool drives the machine tool connecting turntable 240 to rotate, positioning is performed through the positioning groove 231 .

[0074] The workpiece processing fixture 300 includes 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.

[0075] A first workpiece fixing pin 331 is provided on the workpiece connecting platform 311 below the inner hole expansion clamp 321.

[0076] 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.

[0077] The workpiece connection platform 311 on the left and right sides of the inner hole expansion clamp 321 is provided with a first workpiece connection hole 361 and a second workpiece connection hole 362 respectively, and the edge of the workpiece connection platform 311 outside the first workpiece connection hole 361 is provided with a first auxiliary connection pin 351.

[0078] The first central workpiece connecting hole 371 is disposed in the middle of the workpiece machining fixture body 310 .

[0079] Furthermore, the first inner hole expansion clamp 321 , the second inner hole expansion clamp 322 , the third inner hole expansion clamp 323 and the fourth inner hole expansion clamp 324 are fixed on the workpiece connecting platform 311 in a parallelogram array.

[0080] 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 .

[0081] 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 .

[0082] 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 .

[0083] Furthermore, a third workpiece connecting hole 363 is provided on the workpiece connecting platform 311 inside the second workpiece fixing pin 332 .

[0084] 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.

[0085] Furthermore, the first central workpiece connecting hole 371 and the second central workpiece connecting hole 372 are symmetrically arranged in the middle of the workpiece processing fixture body 310 .

[0086] 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.

[0087] The horizontal fixture 400 includes:

[0088] A horizontal processing fixture body 410 for connecting to the upper surface of an external device,

[0089] A part connection boss 420 for connecting parts,

[0090] A clamping block connecting column used to pass through the inner hole of the part and connect to the external clamping block.

[0091] The part connection boss 420 is fixed on the horizontal processing fixture body 410, and a plurality of part positioning pins are respectively arranged on the upper surface edge of the part connection boss 420.

[0092] The clamping block connecting column is fixed on the part connecting boss 420 .

[0093] Furthermore, the part connection boss 420 includes, from left to right, a dovetail connection portion 421 , a left channel portion 422 , a central arc portion 423 , a right arc channel portion 424 and a right circular end 425 .

[0094] Furthermore, the clamping block connecting column includes a first clamping block connecting column 441 and a second clamping block connecting column 442, wherein the first clamping block connecting column 441 is connected to the right circular end 425, and the second clamping block connecting column 442 is connected to the rear edge of the right arc-shaped channel portion 424.

[0095] Furthermore, the part locating pins include a first part locating pin 451, a second part locating pin 452, a third part locating pin 453, a fourth part locating pin 454, a fifth part locating pin 455, a sixth part locating pin 456, a seventh part locating pin 457, and an eighth part locating pin 458, the eighth part locating pin 458 and the first part locating pin 451 are respectively connected to the two protruding ends of the dovetail connection portion 421, the second part locating pin 452 and the third part locating pin 453 are connected to the rear edge of the left channel portion 422 in sequence, the seventh part locating pin 457 and the sixth part locating pin 456 are connected to the front edge of the left channel portion 422 in sequence, and the fifth part locating pin 455 and the fourth part locating pin 454 are connected to the front edge of the right arc-shaped channel portion 424 in sequence.

[0096] Furthermore, it also includes:

[0097] The first part auxiliary connection hole 431 is provided at the rear side of the left channel portion 422,

[0098] The second part auxiliary connection hole 432 is arranged at the rear side of the central arc portion 423,

[0099] The third part auxiliary connection hole 433 is arranged at the rear side of the right arc-shaped channel portion 424,

[0100] The fourth part auxiliary connection hole 434 is provided at the front side of the dovetail connection portion 421,

[0101] The fifth part auxiliary connection hole 435 is provided on the front side of the left channel portion 422,

[0102] From left to right, a sixth part auxiliary connecting hole 436 and a seventh part auxiliary connecting hole 437 are sequentially arranged on the front side of the right arc-shaped channel portion 424 .

[0103] Furthermore, the dovetail connection portion 421 is circular in shape as a whole, and two protrusions are provided at the end of the dovetail connection portion 421 .

[0104] Furthermore, the front edge of the central arc portion 423 is arc-shaped and the curvature gradually decreases from the middle to both sides.

[0105] Furthermore, the front edge of the right arc-shaped channel portion 424 is arc-shaped and the curvature gradually increases from the middle to both sides.

[0106] Working principle: This continuous processing fixture system for metal parts clamps the blank metal processing plate on the surface of the initial metal workpiece processing fixture. First, the lower edge of the metal workpiece is placed on the first lower limit clamping mechanism 121, the first lower limit fixing pin 132, the second lower limit clamping mechanism 122, the second lower limit fixing pin 133 and the third lower limit clamping mechanism 123, and the left edge of the metal workpiece is placed on the side limit fixing pin 131, so that the position of the metal workpiece is fixed;

[0107] Then, the upper edge of the metal workpiece is further positioned by the first upper limit clamping mechanism 124, the first upper ball head movable pin 141, the second upper limit clamping mechanism 125, the second upper limit clamping mechanism 142 and the third upper limit clamping mechanism 126. The right edge of the metal workpiece is inserted into the inner side of the side ball head movable pin to completely fix the entire workpiece, thereby improving the processing accuracy and reducing the processing error.

[0108] When the worker installs and removes the metal workpiece, the left fingers are located in the first initial assembly clearance groove 151, and the right fingers are located in the second initial assembly clearance groove 152. This eliminates the worker's hands from being clamped between the metal workpiece and the initial processing fixture 100, and the hands do not apply force to the initial processing fixture 100, thereby eliminating the influence of the operation on the positioning accuracy of the metal workpiece.

[0109] The first main positioning groove 161, the first auxiliary positioning groove 162, the second auxiliary positioning groove 163, the third auxiliary positioning groove 164, the second main positioning groove 165, the fourth auxiliary positioning groove 166, the fifth auxiliary positioning groove 167 and the sixth auxiliary positioning groove 168 are arranged in a clockwise centrally symmetrical rectangular array, which can perform auxiliary positioning after the CNC machine tool drills the metal workpiece, and the structural arrangement in a clockwise centrally symmetrical rectangular array can allow the metal workpiece blank to be processed into a centrally symmetrical workpiece, so as to subsequently process two identical or symmetrical workpieces.

[0110] Tighten the clamp connecting bolt 127, and clamp the metal workpiece through the first lower limit clamping mechanism 121, the second lower limit clamping mechanism 122, the third lower limit clamping mechanism 123, the first upper limit clamping mechanism 124, the second upper limit clamping mechanism 125 and the third upper limit clamping mechanism 126 to ensure that the position of the metal workpiece is stable during processing.

[0111] The front and rear of the fixture tooling connection seat body 210 are provided with a plurality of vertical tooling connection holes 211 for connecting vertical fixture tools. The vertical fixture tools can be installed on the front and rear of the fixture tooling connection seat body 210 through the vertical tooling connection holes 211. The upper surface of the fixture tooling connection seat body 210 is provided with a plurality of horizontal tooling connection holes 213 for connecting the top horizontal fixture tools. The horizontal fixture tools can be installed on the top of the fixture tooling connection seat body 210 through the horizontal tooling connection holes 213. In this way, the metal workpiece to be processed can be fixed on the top of the fixture tooling connection seat body 210, and the metal workpiece can be processed using a CNC machine tool;

[0112] The machine tool connection turntable is used to connect with the CNC machine tool, so that the CNC machine tool can drive the square box fixture fixture fixed rotating mechanism to rotate as a whole or keep it stationary;

[0113] When a metal workpiece is processed by a CNC machine tool, a fixture is used for metal processing. The square box-type fixture fixture fixing rotating mechanism of the present application has three surfaces on which the fixture can be installed. If a metal workpiece needs to be processed in multiple steps, the same CNC machine tool can be used. Three fixture fixtures can be installed on a fixture fixture connecting seat body 210. Multiple steps are processed in the same CNC machine tool. The errors of each different CNC machine tool have slight differences. Using the same CNC machine tool for processing can avoid the accumulation of errors and improve processing accuracy. There is no need to transport workpieces between multiple CNC machine tools, which reduces processing time and reduces processing efficiency.

[0114] By providing 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, the workpiece is clamped from the inside to the outside through the inner hole of the workpiece, which will not affect the outer surface processing of the workpiece, leaving all space for the outer surface processing of the workpiece;

[0115] 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;

[0116] 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;

[0117] 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.

[0118] By setting the part connection boss 420, the part is fixed on the part connection boss 420 and processed using a CNC machine tool. There is no edge to support the part, but the part is supported from the bottom, and there is no obstruction to facilitate the processing of the part.

[0119] By providing the first pressing block connecting column 441, the second pressing block connecting column 442, the first part locating pin 451, the second part locating pin 452, the third part locating pin 453, the fourth part locating pin 454, the fifth part locating pin 455, the sixth part locating pin 456, the seventh part locating pin 457 and the eighth part locating pin 458, the part is clamped from the inside to the outside from the inner hole of the part, which will not affect the outer surface processing of the part, leaving space for the outer surface processing of the part;

[0120] The dovetail connection portion 421, the central arc portion 423, the right arc-shaped channel portion 424 and the right circular end cap 425 of the part connecting boss 420 have smooth surfaces. The central arc-shaped portion 423 and the right circular end cap 425 protrude from the whole of the part connecting boss 420, and the exposed space is larger than that of a straight-shaped clamp, which is convenient for processing the parts fixed thereon.

[0121] The continuous processing fixture system of metal parts clamps the workpiece or part to be processed when a CNC machine tool is used to process metal, and then processes the workpiece or part. The surfaces of multiple workpieces or parts can be processed each time. Multiple surfaces are processed by one CNC machine tool. Three fixtures are set in one machine tool. After processing once, the workpiece or part is installed, processed and disassembled in the same CNC machine tool according to the processing steps. The staff does not need to go back and forth between multiple CNC machine tools for transportation and operation, and the processing efficiency is high.

[0122] Each CNC machine tool can process three surfaces, and there is no need to replace the CNC machine tool, which has a high utilization rate of the CNC machine tool.

[0123] Since the processing error of the same CNC machine tool is constant, the error after three processings by the same CNC machine tool will not accumulate. The error of the parts finally processed is the error of a CNC machine tool, and the processing accuracy is high.

[0124] 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 continuous processing fixture system for metal parts, characterized in that: The invention comprises an initial processing fixture (100), a fixture tool connecting seat (200), a workpiece processing fixture (300) and a horizontal fixture (400), wherein the initial processing fixture (100) is arranged on the front of the fixture tool connecting seat (200), the workpiece processing fixture (300) is arranged on the rear of the fixture tool connecting seat (200), and the horizontal fixture (400) is arranged on the upper surface of the fixture tool connecting seat (200). The horizontal clamp (400) comprises a horizontal processing clamp body (410), a part connection boss (420), and a clamping block connection column. The part connection boss (420) is fixed to the horizontal processing clamp body (410), and the clamping block connection column is fixed to the part connection boss (420).

2. A continuous processing fixture system for metal parts according to claim 1, characterized in that: Initial assembly clearance grooves are arranged on both sides of the initial processing fixture (100), and limit clamping mechanisms are arranged on the upper and lower parts of the initial processing fixture (100). A side limit fixing pin (131) is arranged on one side of the initial processing fixture (100), and a side ball head movable pin (143) is arranged on the other side of the initial processing fixture (100). An upper ball head movable pin is arranged between the limit clamping mechanisms at the upper part of the initial processing fixture (100), and a lower limit fixing pin is arranged between the limit clamping mechanisms at the lower part of the initial processing fixture (100).

3. A continuous processing fixture system for metal parts according to claim 2, characterized in that: The top of the side ball head movable pin (143) is spherical, and a side positioning blind hole is provided at the lower side of the initial assembly clearance groove on the right side of the initial processing fixture (100), and the bottom of the side ball head movable pin (143) is ball-jointed in the side positioning blind hole.

4. A continuous processing fixture system for metal parts according to claim 1, characterized in that: The fixture tooling connection seat (200) comprises a fixture tooling connection seat body (210), the front, rear and upper surfaces of the fixture tooling connection seat body (210) are all provided with a plurality of connection holes for connecting the fixture tooling, and a tooling connection base (220) is fixedly connected to the bottom of the fixture tooling connection seat body (210). The first base connection block (251) is arranged on the front side of the tool connection base (220). The first base connection block (251) is respectively connected to the tool connection base (220) and the machine tool connection base (230) by bolts. The second chassis connection block (252) is arranged on a side of the tool connection base (220), and the second chassis connection block (252) is respectively connected to the tool connection base (220) and the machine tool connection base (230) by bolts. The machine tool connection turntable (240) is fixedly connected to the bottom of the machine tool connection base (230).

5. A continuous processing fixture system for metal parts according to claim 4, characterized in that: The upper surface of the fixture tool connection seat body (210) is provided with a plurality of horizontal tool connection holes (213) for connecting the top horizontal fixture tool.

6. A continuous processing fixture system for metal parts according to claim 1, characterized in that: The workpiece processing fixture (300) 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 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 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).

7. A continuous processing fixture system for metal parts according to claim 6, characterized in that: The first inner hole expansion clamp (321), the second inner hole expansion clamp (322), the third inner hole expansion clamp (323) and the fourth inner hole expansion clamp (324) are fixed on the workpiece connection platform (311) in a parallelogram array.

8. The continuous processing fixture system for metal parts according to claim 1, characterized in that: The part connection boss (420) comprises, from left to right, a dovetail connection portion (421), a left channel portion (422), a central arc portion (423), a right arc channel portion (424) and a right circular end (425).

9. A continuous processing fixture system for metal parts according to claim 8, characterized in that: The clamping block connecting column includes a first clamping block connecting column (441) and a second clamping block connecting column (442), wherein the first clamping block connecting column (441) is connected to the right circular end (425), and the second clamping block connecting column (442) is connected to the rear edge of the right arc-shaped channel portion (424).

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