CN113334013A

CN113334013A - Multi-angle fixing clamp for machining automobile parts

Info

Publication number: CN113334013A
Application number: CN202110490944.1A
Authority: CN
Inventors: 罗嗣林
Original assignee: Taizhou Vocational College of Science and Technology
Current assignee: Taizhou Vocational College of Science and Technology
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2021-09-03

Abstract

The invention provides a multi-angle fixing clamp for machining automobile parts. Automobile parts is multi-angle mounting fixture for processing includes: a clamping table; the two supporting plates are fixedly arranged on the clamping table; the two concave frames are fixedly arranged on the two supporting plates respectively; the two rotating shafts are respectively and rotatably arranged on the inner walls of the two concave frames; the two first gears are respectively fixedly sleeved on the two rotating shafts; the two arc toothed plates are arranged between the two concave frames and are respectively meshed with the two first gears. The multi-angle fixing clamp for processing the automobile parts, provided by the invention, has the advantages that the parts do not need to be supported by hands for welding, the safety of welding work is improved, the carrier parts can be prevented from being inclined, and the welding precision can be improved.

Description

Multi-angle fixing clamp for machining automobile parts

Technical Field

The invention relates to the technical field of clamps, in particular to a multi-angle fixing clamp for machining automobile parts.

Background

The automobile accessory processing is to form each unit of the automobile accessory processing whole body and serve products of the automobile accessory processing, parts in an automobile comprise an engine assembly, a transmission assembly, a brake assembly, a steering assembly and the like, in the production process of the parts, welding and fixing are often carried out between the two parts by utilizing a welding technology, in addition, in the welding process, in order to bring convenience to the welding work, special fixing fixtures are generally arranged, the parts to be welded are reliably clamped, and then the corresponding welding work is carried out.

However, when the conventional fixing clamp is used, it is found that a fixing station for fixing parts on the fixing clamp cannot be adjusted in a certain angle range, and a certain angle needs to be formed between some parts, which results in that when welding, one part needs to be clamped, the other part is held by hands, an angle is formed between the two parts, and then welding work is performed, which is inconvenient for workers and easy to hurt the hands, and when welding the two parts to the other part, the part located in the middle is equivalent to a carrier, and when welding, the middle part still needs to be held by hands, which brings a certain trouble to the welding work, and on the other hand, the way of holding by hands is unstable, and the parts are easy to tilt, so that the welding precision is reduced.

Therefore, it is necessary to provide a multi-angle fixing clamp for processing automobile parts to solve the above technical problems.

Disclosure of Invention

The invention solves the technical problem of providing the multi-angle fixing clamp for processing the automobile parts, which does not need to hold the parts by hands for welding, improves the safety of welding work, can prevent carrier parts from being inclined and can improve the welding precision.

In order to solve the technical problem, the invention provides a multi-angle fixing clamp for processing automobile parts, which comprises: a clamping table; the two supporting plates are fixedly arranged on the clamping table; the two concave frames are fixedly arranged on the two supporting plates respectively; the two rotating shafts are respectively and rotatably arranged on the inner walls of the two concave frames; the two first gears are respectively fixedly sleeved on the two rotating shafts; the two arc toothed plates are arranged between the two concave frames and are respectively meshed with the two first gears; the two frames are respectively and fixedly installed on the inner walls of the two arc-shaped toothed plates; the two first box bodies are arranged between the two arc toothed plates, and the sides, close to each other, of the two first box bodies are provided with openings; the two push rod motors are fixedly arranged on the inner wall of one side of each of the two frames respectively, output shafts of the two push rod motors are fixedly connected with the first box bodies respectively, and the push rod motors are movably connected with the inner wall of one side of each of the frames; the two first bidirectional screw rods are respectively and rotatably arranged on the inner walls of the two first box bodies; the two first motors are fixedly arranged on the two first box bodies respectively, and output shafts of the two first motors are fixedly connected with one ends of the two first bidirectional lead screws respectively; the four linkage plates are all installed on the two first bidirectional lead screws in a threaded mode; the four clamping pieces are fixedly arranged on the corresponding linkage plates; and the transmission mechanism is arranged above the clamping table.

Preferably, the transmission mechanism comprises two linkage rods, a portal frame, a transmission rod, a motor II, two gears II, two bevel gears I, two bevel gears II, two bevel gears III and two bevel gears IV, the two linkage rods are all arranged above the clamping table, the top ends of the two linkage rods extend into the corresponding concave frame, the portal frame is fixedly arranged at the top of the clamping table, the transmission rod is rotatably arranged on the portal frame, the motor II is fixedly arranged at the top of the clamping table, the motor II is positioned in the portal frame, the two gears II are respectively fixedly sleeved on an output shaft of the motor II and the transmission rod, the two gears II are meshed, the two bevel gears I are respectively fixedly arranged at two ends of the transmission rod, the two bevel gears II are respectively fixedly arranged at the bottom ends of the two linkage rods, the two second bevel gears are respectively meshed with the two first bevel gears, the two third bevel gears are respectively and fixedly installed at the top ends of the two linkage rods, the two fourth bevel gears are respectively and fixedly sleeved on the two rotating shafts, and the two fourth bevel gears are respectively meshed with the two three bevel gears.

Preferably, the bottom fixed mounting of pressing from both sides the platform has four I-shaped mount pads, all rotate on the both sides outer wall of concave frame and install even axle, even axle with the pivot is in same axle center, two even epaxial equal fixed mounting has branch, two equal fixed mounting has the extension board on the branch, two one side that the extension board is close to each other all with same arc pinion rack fixed connection.

Preferably, the inner walls of the two sides of the first box body are fixedly provided with vertical rods, the vertical rods penetrate through the corresponding two linkage plates and the corresponding two linkage plates are in sliding connection and are respectively fixedly provided with a baffle plate and two baffle plates, the baffle plates penetrate through the corresponding two linkage plates and are movably connected with the corresponding two linkage plates.

Preferably, two lateral plates are fixedly mounted on the side, close to each other, of each of the two supporting plates, and the linkage rod penetrates through the corresponding two lateral plates and is rotatably connected with the corresponding two lateral plates.

Preferably, two-way lead screw two is installed in the last rotation of portal frame, the equal fixed mounting in both ends of two-way lead screw two has the runner, two slide plates, two are installed to two-way lead screw two last screw thread the equal fixed mounting in top of slide plate has solid fishplate bar, two the equal fixed mounting in one side that solid fishplate bar is close to each other has box body two, two one side that box body two are close to each other all establishes to the opening, two equal slidable mounting has the clamp plate, two on the inner wall of box body two one side that the clamp plate is close to each other all extends to the correspondence the box body is two, two the equal fixed mounting in one side that the clamp plate was kept away from each other has two pressure springs, corresponding two the pressure spring all with the correspondence one side inner.

Preferably, a plurality of reinforcing saw teeth are fixedly mounted on one side, close to each other, of each of the two pressure plates.

Preferably, the standing groove has been seted up at the top of portal frame, the bottom fixed mounting of portal frame has the baffle, two-way lead screw two runs through the baffle and with baffle swing joint, two equal slidable mounting has the horizontal pole on the shifting board, two the one end that the horizontal pole is close to each other all with baffle fixed connection, two the horizontal pole respectively with the both sides inner wall swing joint of portal frame.

Preferably, the cross rod is sleeved with springs, one ends of the springs, which are close to each other, are fixedly connected with the partition plate, and the other ends of the springs, which are far away from each other, are fixedly connected with the sliding plate respectively.

Compared with the prior art, the multi-angle fixing clamp for processing the automobile parts has the following beneficial effects:

the invention provides a multi-angle fixing clamp for processing automobile parts, which is characterized in that a gear I is meshed with an arc toothed plate and is finally rotated under the multi-direction transmission of a transmission mechanism, so that the arc toothed plate can be angularly changed, the angle range can be within a larger value range through the gear-type angle adjustment, the multi-angle adjustment can be carried out, two pieces to be welded can be reliably clamped simultaneously through the arrangement of two bidirectional screw rods I, a part is not required to be held by hands, the welding is convenient, and the safety of the welding work is improved;

and when two spare parts that will press from both sides tight all weld a carrier part in the middle of being in, place the carrier part in the standing groove, then rotate arbitrary runner, through the dual function of consolidating sawtooth and pressure spring, reliably press from both sides the carrier part tight, and the spring atress is compressed this moment, then make the screw pretightning force between two-way lead screw two and the slide plate bigger, tighter, like this alright fix the carrier part in the middle of the standing groove is reliable, then carry out corresponding weldment work can, the condition of artifical support of ability effectual solution like this, and also corresponding elimination leads to the carrier part to be crooked because of artifical handheld, cause the problem that welding precision is poor.

Drawings

FIG. 1 is a schematic front view of a multi-angle fixing clamp for machining automobile parts according to a first embodiment of the present invention;

FIG. 2 is a schematic view of a top-down connection structure of a concave frame and an arc-shaped toothed plate in a first embodiment of the multi-angle fixing clamp for machining automobile parts, provided by the invention;

FIG. 3 is an enlarged schematic view of portion A of FIG. 1;

FIG. 4 is a schematic front view of a multi-angle fixing clamp for machining automobile parts according to a second embodiment of the present invention;

fig. 5 is an enlarged structural view of a portion B shown in fig. 4.

Fig. 6 is a schematic structural diagram of a further optimization scheme of fig. 3.

Reference numbers in the figures: 1. a clamping table; 2. a support plate; 3. a concave frame; 4. a rotating shaft; 5. a first gear; 6. an arc toothed plate; 7. a frame; 8. a first box body; 9. a push rod motor; 10. a first bidirectional screw rod; 11. a first motor; 12. a linkage plate; 13. a clip; 14. a linkage rod; 15. a gantry; 16. a second motor; 17. a second gear; 18. a first bevel gear; 19. a second bevel gear; 20. a third bevel gear; 21. umbrella teeth four; 22. a two-way screw rod II; 23. a slide plate; 24. fixing and connecting the plates; 25. a second box body; 26. pressing a plate; 27. a pressure spring; 28. reinforcing the saw teeth; 29. a cross bar; 30. a spring.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

First embodiment

Referring to fig. 1 to 3, in a first embodiment of the present invention, a multi-angle fixing jig for machining automobile parts includes: a clamping table 1; the two supporting plates 2 are fixedly arranged on the clamping table 1; the two concave frames 3 are respectively and fixedly arranged on the two supporting plates 2, the concave frames 3 can provide an installation and moving space for the rotating shaft 4 and the gear I5, and the frame-type concave frames 3 have fewer production materials and low production cost; the two rotating shafts 4 are respectively and rotatably arranged on the inner walls of the two concave frames 3; the two first gears 5 are respectively fixedly sleeved on the two rotating shafts 4; the two arc-shaped toothed plates 6 are arranged between the two concave frames 3, the two arc-shaped toothed plates 6 are respectively meshed with the two gears I5, and the gear I5 can adjust the angle directions of the arc-shaped toothed plates 6 and the clamped parts while rotating through the meshing formed between the arc-shaped toothed plates 6 with teeth on the outer rings and the gears I5, so that the welding work at different angles is met; the two frames 7 are respectively and fixedly installed on the inner walls of the two arc-shaped toothed plates 6; the two box bodies I8 are arranged between the two arc-shaped toothed plates 6, the sides, close to each other, of the two box bodies I8 are provided with openings, and the two linkage plates 12 for clamping parts can have a movable inner space by arranging the box bodies I8 with the openings on one sides; the two push rod motors 9 are respectively and fixedly arranged on the inner wall of one side of the two frames 7, the output shafts of the two push rod motors 9 are respectively and fixedly connected with the two box bodies I8, and the push rod motors 9 are movably connected with the inner wall of one side of the frame 7; the two bidirectional screw rods I10 are respectively and rotatably arranged on the inner walls of the two box bodies I8, and the two linkage plates 12 can move away from or close to each other through the rotation of the bidirectional screw rods I10, so that a part to be machined can be clamped or loosened; the two motors I11 are respectively and fixedly installed on the two box bodies I8, and output shafts of the two motors I11 are respectively and fixedly connected with one ends of the two bidirectional screw rods I10; the four linkage plates 12 are all arranged on the two bidirectional screw rods 10 in a threaded manner; the four clamping pieces 13 are fixedly arranged on the corresponding linkage plates 12, and the four linkage plates 12 which can move in opposite directions or away from each other enable the clamping pieces 13 to move while moving, so that parts to be welded are reliably clamped or loosened; and the transmission mechanism is arranged above the clamping table 1.

The transmission mechanism comprises two linkage rods 14, a portal frame 15, a transmission rod, a motor II 16, two gears II 17, two bevel gears I18, two bevel gears II 19, two bevel gears III 20 and two bevel gears IV 21, the two linkage rods 14 are arranged above the clamping table 1, the top ends of the two linkage rods 14 extend into the corresponding concave frames 3, the linkage rods 14 are arranged so that the rotating shaft 4 can rotate through a series of transmission actions, so that the gear I5 can be driven to rotate, the portal frame 15 is fixedly arranged at the top of the clamping table 1, the transmission rod is rotatably arranged on the portal frame 15, the transmission rod can rotate along with the operation of the motor II 16, the two linkage rods 14 are driven to rotate through the meshing between the bevel gears I18 and the bevel gears II 19, the motor II 16 is fixedly arranged at the top of the clamping table 1, the second motor 16 is located in the portal frame 15, the two second gears 17 are respectively and fixedly sleeved on an output shaft of the second motor 16 and the transmission rod, the two second gears 17 are meshed with each other, the transmission rod can rotate when the second motor 16 runs through the meshing of the two second gears 17, the two first bevel gears 18 are respectively and fixedly installed at two ends of the transmission rod, the two second bevel gears 19 are respectively and fixedly installed at the bottom ends of the two linkage rods 14, the two second bevel gears 19 are respectively and fixedly meshed with the two first bevel gears 18, the two third bevel gears 20 are respectively and fixedly installed at the top ends of the two linkage rods 14, the two fourth bevel gears 21 are respectively and fixedly sleeved on the two rotating shafts 4, the two fourth bevel gears 21 are respectively and fixedly meshed with the two third bevel gears 20, and by utilizing the meshing fit between the third bevel gears 20 and the fourth bevel gears 21, the rotation shaft 4 can be rotated.

The bottom fixed mounting of pressing from both sides platform 1 has four I-shaped mount pads, and the I-shaped mount pad can be stable fix on appointed station on the one hand, and on the other hand relies on its small and exquisite appearance, all rotate on the both sides outer wall of concave frame 3 and install even axle, even axle with pivot 4 is in same axle center, two even epaxial equal fixed mounting has branch, two on the branch equal fixed mounting has the extension board, two one side that the extension board is close to each other all with same 6 fixed connection of arc pinion rack through the setting of even axle, branch and extension board, can make 6 rotations in the same axle center of pivot 4 of arc pinion rack, and then accomplish angular adjustment smoothly.

Fixed mounting has the montant on the both sides inner wall of box body 8, the montant runs through corresponding two linkage board 12 and with corresponding two linkage board 12 sliding connection, the montant can provide the slip restriction for linkage board 12, makes its back and forth movement that can only a direction, two the equal fixed mounting in one side that box body 8 is close to each other has a baffle, two the baffle all runs through corresponding two linkage board 12 and with corresponding two linkage board 12 swing joint through setting up the baffle for treat that the clamp part can have an originated face, make finally after the part presss from both sides tightly, two parts stretch out the length of clamping piece 13 and can be unanimous, make things convenient for going on of follow-up welding work.

Two equal fixed mounting in one side that backup pad 2 is close to each other has two diaphragms, trace 14 runs through corresponding two the diaphragm and with corresponding two the diaphragm rotates to be connected, and the setting of diaphragm can provide a rotation support for trace 14.

In this embodiment:

when the device is used, the device is fixed at a specified welding clamping position through an I-shaped mounting seat, then two identical parts to be welded are respectively placed on two clamping pieces 13 positioned below the two identical parts, and the two welding pieces are respectively contacted with two baffle plates, so that the two parts extend out of the clamping pieces 13 respectively to be the same in length, then two motors I11 are started in the forward direction, the motors I11 can drive a bidirectional screw rod I10 to rotate, at the moment, the two corresponding linkage plates 12 are close to each other through the threaded relation between the linkage plates 12 and the bidirectional screw rod I10 under the limitation of a vertical rod, and finally the parts with welding are clamped;

then, according to the requirement of a specific welding angle, the second motor 16 is started, the output shaft of the second motor 16 drives the corresponding second gear 17 to rotate, so that the transmission rod starts to rotate through the meshing between the two second gears 17, the two first bevel gears 18 rotate, the two linkage rods 14 start to rotate through the meshing relation between the first bevel gears 18 and the second bevel gears 19, meanwhile, the linkage rods 14 rotate to drive the two third bevel gears 20 to rotate, so that the two rotating shafts 4 simultaneously and reversely rotate under the meshing transmission of the fourth bevel gears 21 meshed with the third bevel gears 20, so that the two first gears 5 can be driven to rotate, along with the rotation of the first gears 5, under the action of the arc toothed plate 6 meshed with the first gears, the arc toothed plate 6 starts to do circular motion by taking the axis of the connecting shaft as the center of a circle, so that the frame 7 can be driven to change the angle, and further, the clamped welding piece to be welded forms the angle adjustment, after the angle adjustment is finished, the second motor 16 is turned off, then the output shaft of the push rod motor 9 is started to extend out, so that the first box bodies 8 are pushed out, and after the two welding parts are contacted, the push rod motor 9 is turned off, and then corresponding welding work can be carried out.

this device passes through the meshing of a gear 5 and arc pinion rack 6, and under drive mechanism's many ways transmission, finally make a gear 5 rotate, and then make arc pinion rack 6 can take place the change in the angle, and angular adjustment through the gear formula, make the angle scope can be in a great value interval, can carry out the adjustment of multi-angle, and through the setting of two-way lead screw 10, can treat two simultaneously and treat the reliable clamp of weldment tightly, need not people and hold the part, when making things convenient for the welding, the security of weldment work has also been improved.

Preferably, as shown in fig. 6, a slider body 70 which moves along the driving direction of the push rod motor 9 with the frame 7 is arranged in the frame 7, one end of the frame 7 close to the box body one 8 is provided with a plurality of guide holes, and guide rods 71 penetrate through the guide holes, the guide rods 71 are parallel to the push rod motor 9 and distributed in the circumferential direction of the push rod motor 9, one end of each guide rod 71 is connected with one end face of the box body one 8 close to the frame 7, the other end of each guide rod 71 extends into the frame 7, the slider body 70 is provided with guide hole bodies for the guide rods 71 to be inserted into one by one, and one end of each guide rod 71 far from the box body one 8 is provided with an anti-falling protrusion to limit the limit movement.

Secondly, the slider body 70 is fixedly connected with the guide rods 71, and each guide rod 71 is sleeved with a limit spring 72 positioned between the slider body 70 and the guide hole, wherein the limit spring plays a role in movement buffering and can also play a role in limit protection. The outer wall of the limit spring is in contact with the inner wall of the frame 7.

The center of the sliding block body 70 is provided with an avoiding through hole for the push rod motor 9 to extend into.

Second embodiment:

based on the automobile parts processing multi-angle mounting fixture that the first embodiment of this application provided, the second embodiment of this application provides another kind of automobile parts processing multi-angle mounting fixture. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

The second embodiment of the present invention will be further described with reference to the drawings and the following description.

Referring to fig. 4-5, the multi-angle fixing fixture for processing automobile parts further includes a two-way screw rod 22, the two-way screw rod 22 is rotatably mounted on the gantry 15, the two-way screw rod 22 can drive the two sliding plates 23 to move away from or close to each other, and finally clamp or loosen the carrier part, rotating wheels are fixedly mounted at two ends of the two-way screw rod 22, the two sliding plates 23 are mounted on the two-way screw rod 22 in a threaded manner, the two sliding plates 23 are different in length, so that the two pressing plates 26 are in an interlaced manner, the stability of clamping the carrier part is further improved, fixing plates 24 are fixedly mounted at tops of the two sliding plates 23, box bodies 25 are fixedly mounted at mutually close sides of the two fixing plates 24, and openings are formed at mutually close sides of the two box bodies 25, box body two 25 can provide an extrusion space for clamp plate 26 for pressure spring 27 can be compressed, and then improves the tight real degree between reinforced saw tooth 28 and the carrier part, two equal slidable mounting has clamp plate 26, two on the inner wall of box body two 25 one side that clamp plate 26 is close to each other all extends to corresponding outside the box body two 25, two the equal fixed mounting in one side that clamp plate 26 kept away from each other has two pressure springs 27, corresponding two pressure spring 27 all with corresponding one side inner wall fixed connection of box body two 25, the setting of pressure spring 27 makes the carrier part can be reliably centre gripping.

A plurality of reinforcing saw teeth 28 are fixedly arranged on the side, close to each other, of each of the two pressing plates 26, and the reinforcing saw teeth 28 can further reliably clamp the carrier part.

The standing groove has been seted up at portal frame 15's top, portal frame 15's bottom fixed mounting has the baffle, two-way lead screw two 22 run through the baffle and with baffle swing joint, two equal slidable mounting has horizontal pole 29, two on the slide plate 23 the one end that the horizontal pole 29 is close to each other all with baffle fixed connection, two horizontal pole 29 respectively with portal frame 15's both sides inner wall swing joint, horizontal pole 29 can provide a slip restriction for slide plate 23 only carries out the round trip movement of horizontal direction.

The cover is equipped with spring 30 on the horizontal pole 29, two the spring 30 one end that is close to each other all with baffle fixed connection, two the spring 30 one end of keeping away from each other respectively with two slide plate 23 fixed connection, spring 30 can provide a resilience force for slide plate 23 for pretightning force between two-way lead screw two 22 and the slide plate 23 can keep, prevents to take place to revolve round between the two.

In this embodiment:

when two clamped parts are required to be welded on a carrier part in the middle, the carrier part is placed in the placing groove firstly, then any one rotating wheel is rotated, the two-way screw rod two 22 is made to rotate, so that under the threaded relation between the two-way screw rod two 22 and the sliding plate 23, the two sliding plates 23 start to move oppositely through the sliding limitation of the cross rod 29, the two pressing plates 26 are made to gradually approach to the carrier part, after the reinforcing sawteeth 28 on the two pressing plates 26 are in contact with the carrier part, the rotating wheel is continuously rotated for two to three circles, the pressing plates 26 are made to contract towards the inside of the box body two 25, the pressing springs 27 are made to be extruded, the contact between the reinforcing sawteeth 28 and the carrier part is more compact and stable, the springs 30 are also stressed and compressed under the influence of the movement of the sliding plate 23, and then the thread pre-tightening force between the two-way screw rods 22 and the sliding plates 23 is larger, More tightly, alright fix the carrier part in the middle of the groove of placeeing with reliability like this, then carry out corresponding weldment work can, the condition of artifical support can be effectual solved like this, and also corresponding elimination causes the carrier part crooked because of artifical handheld, causes the poor problem of welding precision.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a multi-angle mounting fixture is used in automobile parts processing which characterized in that includes:

a clamping table;

the two supporting plates are fixedly arranged on the clamping table;

the two concave frames are fixedly arranged on the two supporting plates respectively;

the two rotating shafts are respectively and rotatably arranged on the inner walls of the two concave frames;

the two first gears are respectively fixedly sleeved on the two rotating shafts;

the two arc toothed plates are arranged between the two concave frames and are respectively meshed with the two first gears;

the two frames are respectively and fixedly installed on the inner walls of the two arc-shaped toothed plates;

the two first box bodies are arranged between the two arc toothed plates, and the sides, close to each other, of the two first box bodies are provided with openings;

the two push rod motors are fixedly arranged on the inner wall of one side of each of the two frames respectively, output shafts of the two push rod motors are fixedly connected with the first box bodies respectively, and the push rod motors are movably connected with the inner wall of one side of each of the frames;

the two first bidirectional screw rods are respectively and rotatably arranged on the inner walls of the two first box bodies;

the two first motors are fixedly arranged on the two first box bodies respectively, and output shafts of the two first motors are fixedly connected with one ends of the two first bidirectional lead screws respectively;

the four linkage plates are all installed on the two first bidirectional lead screws in a threaded mode;

the four clamping pieces are fixedly arranged on the corresponding linkage plates;

and the transmission mechanism is arranged above the clamping table.

2. The multi-angle fixing fixture for machining the automobile parts as claimed in claim 1, wherein the transmission mechanism comprises two linkage rods, a gantry, a transmission rod, a motor II, two gears II, two bevel gears I, two bevel gears II, two bevel gears III and two bevel gears IV, the two linkage rods are arranged above the clamping table, the top ends of the two linkage rods extend into the corresponding concave frames, the gantry is fixedly arranged at the top of the clamping table, the transmission rod is rotatably arranged on the gantry, the motor II is fixedly arranged at the top of the clamping table, the motor II is arranged in the gantry, the two gears II are respectively and fixedly sleeved on the output shaft of the motor II and the transmission rod, the two gears II are meshed, the two bevel gears I are respectively and fixedly arranged at the two ends of the transmission rod, the two second bevel gears are fixedly arranged at the bottom ends of the two linkage rods respectively, the two second bevel gears are meshed with the two first bevel gears respectively, the two third bevel gears are fixedly arranged at the top ends of the two linkage rods respectively, the two fourth bevel gears are fixedly sleeved on the two rotating shafts respectively, and the two fourth bevel gears are meshed with the two three bevel gears respectively.

3. The multi-angle fixing clamp for machining the automobile parts as claimed in claim 1, wherein four I-shaped mounting seats are fixedly mounted at the bottom of the clamping table, connecting shafts are rotatably mounted on outer walls of two sides of the concave frame, the connecting shafts and the rotating shaft are located at the same axis, supporting rods are fixedly mounted on the two connecting shafts, supporting plates are fixedly mounted on the two supporting rods, and one sides, close to each other, of the two supporting plates are fixedly connected with the same arc-shaped toothed plate.

4. The multi-angle fixing clamp for processing the automobile parts as claimed in claim 1, wherein vertical rods are fixedly mounted on inner walls of two sides of the first box body, the vertical rods penetrate through two corresponding linkage plates and are in sliding connection with the two corresponding linkage plates, a baffle is fixedly mounted on one side, close to each other, of each of the two first box bodies, and the two baffles penetrate through two corresponding linkage plates and are movably connected with the two corresponding linkage plates.

5. The multi-angle fixing clamp for processing the automobile parts as claimed in claim 2, wherein two transverse plates are fixedly mounted on the sides of the two support plates close to each other, and the linkage rod penetrates through and is rotatably connected with the two corresponding transverse plates.

6. The multi-angle fixing clamp for processing the automobile parts as claimed in claim 2, wherein a two-way screw rod II is rotatably mounted on the portal frame, rotating wheels are fixedly mounted at two ends of the two-way screw rod II, two sliding plates are mounted on the two-way screw rod II in a threaded manner, a fixing plate is fixedly mounted at the top of each sliding plate, a box body II is fixedly mounted at one side of the fixing plate close to each other, an opening is formed in one side of the box body II close to each other, pressing plates are slidably mounted on the inner wall of the box body II, one side of each pressing plate close to each other extends to the corresponding side of the box body, two pressing plates are fixedly mounted at one side of each pressing plate far away from each other, two pressing springs are fixedly connected with the inner wall of one side of the box body II, and the two pressing springs are corresponding to the inner wall of one side of the box body II.

7. The multi-angle fixing clamp for machining the automobile parts as claimed in claim 6, wherein a plurality of reinforcing saw teeth are fixedly mounted on the sides of the two pressing plates close to each other.

8. The multi-angle fixing clamp for machining the automobile parts as claimed in claim 6, wherein a placing groove is formed in the top of the portal frame, a partition plate is fixedly mounted at the bottom of the portal frame, the two-way screw rod II penetrates through the partition plate and is movably connected with the partition plate, cross rods are slidably mounted on the two sliding plates, one ends, close to each other, of the two cross rods are fixedly connected with the partition plate, and the two cross rods are movably connected with inner walls of two sides of the portal frame respectively.

9. The multi-angle fixing clamp for machining the automobile parts as claimed in claim 8, wherein the cross bar is sleeved with springs, one ends of the two springs close to each other are fixedly connected with the partition plate, and one ends of the two springs far away from each other are fixedly connected with the two sliding plates respectively.