CN115041990A

CN115041990A - Multi-station transposition clamp for milling cabin parts

Info

Publication number: CN115041990A
Application number: CN202210977568.3A
Authority: CN
Inventors: 李学光; 杨府林; 孟凡军; 王相海; 丁海涛
Original assignee: Changchun University of Science and Technology
Current assignee: Changchun University of Science and Technology
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-09-13
Anticipated expiration: 2042-08-16
Also published as: CN115041990B

Abstract

The invention relates to a milling and processing multi-station transposition clamp for cabin parts, which comprises: the clamping device is used for clamping and fixing the workpiece to be processed; the rotating device is fixedly connected with the clamping device and is used for driving the clamping device and the workpiece to be machined to rotate among all stations; and the control panel is electrically connected with the air cylinder in the clamping device and the motor in the rotating device respectively and is used for controlling the pressure of the air cylinder to enable the clamping device to clamp the workpiece to be machined and controlling the rotation of the motor to enable the rotating device to rotate. The clamping device can be used for simultaneously clamping a plurality of workpieces to be machined, and the clamping device adopts the air cylinder as power, so that the clamping force can be accurately controlled, and the stability and the reliability of clamping of the clamp are enhanced; through the control to motor among the rotating device, can drive the clamping device who links firmly with rotating device and a plurality of above-mentioned work pieces of treating rotate, increased the quantity of treating the work piece at every turn man-hour, reduce the machining fault rate, improve work piece machining efficiency.

Description

Multi-station transposition clamp for milling cabin parts

Technical Field

The invention relates to the technical field of machining, in particular to a cabin part milling multi-station transposition clamp.

Background

Machining refers to a process of changing the physical dimensions or properties of a workpiece by a mechanical device. The difference in the machining method can be divided into cutting machining and pressing machining. The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process.

Traditional anchor clamps are getting when pressing from both sides, and it is the both sides of manual rotation screw rod meshing screw thread messenger splint to mechanical parts are got usually, and the operation is very inconvenient, and causes the tight degree of clamp inadequately easily, leads to the processing error, especially to cabin body part, traditional anchor clamps can not adapt to cabin body part milling process's requirement. And traditional mounting fixture can not treat the machined product yet and rotate, if want to change the station of treating the machined product, need will treat that the machined product takes off to get again and gets and change anchor clamps even, leads to machining efficiency low.

Disclosure of Invention

The invention provides a cabin part milling multi-station transposition clamp, which aims to solve the problems that the traditional machining clamp is inconvenient to operate, machining errors are easily caused due to insufficient clamping degree, and machining efficiency is low due to the fact that a product to be machined cannot rotate.

In order to solve the problems, the invention adopts the following technical scheme:

cabin body part milling process multistation transposition anchor clamps include:

the clamping device is used for clamping and fixing the workpiece to be processed;

the rotating device is fixedly connected with the clamping device and is used for driving the clamping device and the workpiece to be machined to rotate among stations;

the control panel is respectively and electrically connected with the air cylinder in the clamping device and the motor in the rotating device and is used for controlling the pressure of the air cylinder to enable the clamping device to clamp the workpiece to be machined and controlling the rotation of the motor to enable the rotating device to rotate;

the rotating device comprises a box body cover, a box body, a thrust ball bearing, a bearing cover, an internal gear, a motor, a first support frame, a first stepped shaft, a first bearing, a first bevel gear, a second stepped shaft, a second bevel gear, a first bearing seat, a second bearing seat, a worm gear, a first gear, a third stepped shaft and a second bearing;

the inner part of the box body is fixedly connected with a first support frame, the first support frame is provided with two bearing mounting holes, the races of a first bearing and a second bearing are respectively and fixedly connected with the bearing mounting holes, the shaft ring of the first bearing is fixedly connected with a first step shaft, one end of the first step shaft is fixedly connected with an output shaft of a motor, the motor is fixed in the box body, the other end of the first step shaft is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixedly connected with a second step shaft, the second step shaft is fixed on the first support frame through a first bearing seat and a second bearing seat, one end of the second step shaft is in threaded connection with a worm, the worm is matched with a worm wheel, the worm wheel is fixedly connected on a third step shaft, one end of the third step shaft is fixedly connected with the shaft ring of the second bearing, the other end of the third step shaft is fixedly connected with the first gear, and the first gear is meshed with an inner gear, the inner gear is fixedly connected to the bearing cover, the bearing cover is fixedly mounted on a seat ring on one side of the thrust ball bearing, the seat ring on the other side of the thrust ball bearing is fixedly connected to the box body cover, and the box body cover is fixedly connected to the box body.

Compared with the prior art, the invention has the beneficial effects that:

the cabin part milling multi-station indexing fixture provided by the invention can simultaneously clamp a plurality of workpieces to be machined by utilizing the clamping device, and the clamping device adopts the air cylinder as power, so that the clamping force can be accurately controlled, the workpieces to be machined are more stable in a clamping state, and the clamping reliability of the fixture is enhanced; meanwhile, the clamping device fixedly connected with the rotating device and a plurality of workpieces to be machined on the clamping device can be driven to rotate by controlling the motor in the rotating device, so that a plurality of workpieces to be machined can be machined simultaneously in one machining process, the number of workpieces to be machined in each machining process is increased, the machining error rate is reduced, and the machining efficiency of workpieces is improved.

Drawings

The accompanying drawings, which are included to provide a further explanation of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic general structural view of a milling multi-station indexing fixture for cabin parts provided by the present invention;

FIG. 2 is a schematic view of a rotary device provided in the present invention;

FIG. 3 is a schematic view of the internal structure of the box body of the rotating device provided by the present invention;

FIG. 4 is a schematic view of a clamping device provided in accordance with the present invention;

FIG. 5 is a schematic view of a linkage mechanism and a linkage mechanism of the clamping device according to the present invention;

FIG. 6 is a schematic view of a linkage mechanism in the clamping device provided by the present invention;

FIG. 7 is a schematic view of the internal structure of a column in the clamping device according to the present invention;

in the figure: 1. a clamping device; 2. a rotating device; 3. a first gear; 4. an internal gear; 5. a bearing cap; 6. a case cover; 7. a box body; 8. a thrust ball bearing; 9. a worm; 10. a column cover; 11. a column; 12. mounting a plate; 13. a second bearing housing; 14. a worm gear; 15. a third step shaft; 16. a second bearing; 17. a motor; 18. a first support frame; 19. a first step shaft; 20. a first bearing; 21. a first bevel gear; 22. a first bearing housing; 23. a second bevel gear; 24. a second step axis; 25. a second gear; 26. a third bearing; 27. a fourth stepped shaft; 28. a first support base; 29. a fourth bearing; 30. a third gear; 31. a second support seat; 32. a first connecting shaft; 33. a sixth bearing; 34. a first link; 35. a crank shaft; 36. a fifth bearing; 37. a second support frame; 38. a piston rod; 39. a ninth bearing; 40. a fourth connecting shaft; 41. a third link; 42. a third connecting shaft; 43. an eighth bearing; 44. a second connecting shaft; 45. a seventh bearing; 46. a third support seat; 47. a second link; 48. a rack; 49. connecting blocks; 50. a cylinder; 51. a workpiece to be processed; 52. a suction cup.

Detailed Description

The embodiments of the present invention described below are illustrated by specific examples, and the features and functions of the present invention can be understood by those skilled in the art from the contents set forth in the present specification. It should be noted that the drawings provided in the following embodiments are only for illustration and are only schematic drawings rather than actual drawings, which should not be construed as limiting the present invention, and in order to better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the terms are used for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationships in the drawings are used for illustrative purposes only and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings used in the specific situations.

As shown in fig. 1, the invention provides a multi-station indexing fixture for milling cabin parts, which mainly comprises a clamping device 1, a rotating device and a control panel.

Specifically, the clamping device 1 is used for clamping and fixing the member to be processed 51, and the clamping device 1 adopts an air cylinder as a power source; the clamping device 1 is fixedly connected with the rotating device 2, the rotating device 2 is used for driving the clamping device 1 and the workpiece 51 to be machined clamped by the clamping device to rotate among stations, and the rotating device 2 adopts a motor as a power source; the control panel is respectively electrically connected with the air cylinder 50 in the clamping device 1 and the motor 17 in the rotating device 2, the control panel is used for controlling the pressure of the air cylinder 50 to enable the clamping device 1 to clamp the workpiece 51 to be machined, and the control panel is also used for controlling the rotation of the motor 17 to enable the rotating device 2 to rotate among all stations.

As shown in fig. 2 to 3, the rotating device includes a case cover 6, a case 7, a thrust ball bearing 8, a bearing cover 5, an internal gear 4, a motor 17, a first support bracket 18, a first stepped shaft 19, a first bearing 20, a first bevel gear 21, a second stepped shaft 24, a second bevel gear 23, a first bearing seat 22, a second bearing seat 13, a worm 9, a worm wheel 14, a first gear 3, a third stepped shaft 15, and a second bearing 16.

The outermost part of the rotating device 2 is carried by a box body 7, and a first supporting frame 18 is fixedly connected to the inner part of the box body 7. Optionally, two ends of the first support frame 18 are respectively provided with a first screw hole, and the first support frame 18 is fixed at the bottom of the box body 7 through a screw in threaded fit with the first screw hole. Two bearing mounting holes are arranged on the first support frame 18, the races of the first bearing 20 and the second bearing 16 are respectively and fixedly connected with the bearing mounting holes, the shaft ring of the first bearing 20 is fixedly connected with the first stepped shaft 19, one end of the first stepped shaft 19 is fixedly connected with the output shaft of the motor 17, the motor 17 is fixed in the box body 7, the other end of the first stepped shaft 19 is fixedly connected with a first bevel gear 21, the first bevel gear 21 is meshed with a second bevel gear 23, the second bevel gear 23 is fixedly connected with a second stepped shaft 24, the second stepped shaft 24 is fixed on the first support frame 18 through a first bearing seat 22 and a second bearing seat 13, one end of the second stepped shaft 24 is in threaded connection with a worm 9, the worm 9 is matched with a worm wheel 14, the worm wheel 14 is fixedly connected on the third stepped shaft 15, one end of the third stepped shaft 15 is fixedly connected with the shaft ring of the second bearing 16, the other end of the third stepped shaft 15 is fixedly connected with the first gear 3, first gear 3 meshes with internal gear 4 mutually, and internal gear 4 fixed connection is on bearing cap 5 and mounting panel 12, and 5 fixed mounting of bearing cap have thrust ball bearing 8, and one side seat circle and 5 fixed connection of bearing cap of thrust ball bearing 8, the 8 other end seat circles fixed connection of thrust ball bearing are on box lid 6, and box lid 6 fixed connection is on box 7. Optionally, four corners of the box cover 6 are respectively provided with a second screw hole, and the box cover 6 is fixed on the top of the box 7 by screws in threaded fit with the second screw holes. In the embodiment, the motor 17, the first bevel gear 21, the second bevel gear 23, the worm gear 14, the internal gear 4, the thrust ball bearing 8 and the like are arranged, so that the motor 17 drives the workpiece 51 to be machined to rotate through the first stepped shaft 19, the first bevel gear 21, the second bevel gear 23, the worm gear 14 and other parts, the number of the workpieces 51 to be machined in each machining process is increased, and the machining efficiency is improved.

As shown in fig. 4 to 7, the clamping device includes a mounting plate 12, a column 11, a column cover 10, a cylinder 50, a connecting block 49, a rack 48, a link mechanism, and a link transmission mechanism, wherein the link transmission mechanism includes a second support frame 37, a first support seat 28, a second support seat 31, a second gear 25, a third bearing 26, a fourth stepped shaft 27, a third gear 30, and a fourth bearing 29.

The clamping device 1 takes the mounting plate 12 as a bearing, the bottom of the mounting plate 12 is fixedly connected with the inner gear 4, the top of the mounting plate 12 is fixedly connected with the bottom end of the upright post 11, the two can be connected in a mode of screw threads and the like, the upright post 11 is of a hollow structure, the inside of the upright post 11 is provided with the cylinder 50, the connecting block 49 is fixedly connected on the telescopic rod of the cylinder 50, the side surface of the connecting block 49 is vertically fixed with at least one rack 48, the rack 48 is used for being meshed with the corresponding second gear 25, the top end of the upright post 11 is fixedly connected with the upright post cover 10, the upright post cover 10 is provided with an opening for the connecting block 49 to extend out, the upright post cover 10 is provided with at least one connecting rod mechanism and a connecting rod transmission mechanism which is matched with the rack 48 to transmit the power generated by the cylinder 50 to the connecting rod mechanism, the connecting rod mechanism comprises a piston rod 38, the piston rod 38 is movably connected with the second support 37, the second support 37 is provided with a limit hole, the connecting rod mechanism is used for limiting the piston rod 38, the piston rod 38 penetrates through a limiting hole in the second supporting frame 37 and then is fixedly connected with a sucker 52, the connecting rod mechanism is driven by a corresponding connecting rod transmission mechanism to press a workpiece 51 to be machined on the mounting plate 12 through the sucker 52, and the control panel is used for adjusting the clamping force of the connecting rod mechanism on the workpiece 51 to be machined through the pressure control of the air cylinder 50. Alternatively, the control panel is fixedly attached to the side of the mounting plate 12.

In the link mechanism, the first supporting seat 28 and the second supporting seat 31 are fixed on the column cover 10, the second gear 25 engaged with the rack 48 is fixedly connected on the fourth stepped shaft 27, two ends of the fourth stepped shaft 27 are respectively fixed on the first supporting seat 28 and the second supporting seat 31 through the third bearing 26, the second gear 25 is engaged with the third gear 30, the third gear 30 is fixedly connected on the crank shaft 35 in the link mechanism, two sides of the crank shaft 35 are respectively connected with the fourth bearing 29, and races of the two fourth bearings 29 are respectively fixed in the first supporting seat 28 and the second supporting seat 31.

As shown in fig. 6, the link mechanism includes a crank shaft 35, a fifth bearing 36, a first link 34, a sixth bearing 33, a first connecting shaft 32, a second link 47, a third support seat 46, a seventh bearing 45, a second connecting shaft 44, an eighth bearing 43, a third connecting shaft 42, a third link 41, a fourth connecting shaft 40, a ninth bearing 39, and a piston rod 38. The crank shaft 35 is hinged with one end of the first connecting rod 34 through a fifth bearing 36, the other end of the first connecting rod 34 is hinged with one end of a second connecting rod 47 through a sixth bearing 33 and a first connecting shaft 32, the other end of the second connecting rod 47 is hinged with one end of a third connecting rod 41 through an eighth bearing 43 and a third connecting shaft 42, the middle part of the second connecting rod 47 is hinged on a third supporting seat 46 through a seventh bearing 45 and a second connecting shaft 44, the third supporting seat 46 is fixed on the second supporting frame 37, the other end of the third connecting rod 41 is hinged with one end of the piston rod 38 through a ninth bearing 39 and a fourth connecting shaft 40, and the other end of the piston rod 38 is fixedly connected with a suction cup 52.

Specifically, a fifth bearing 36 is mounted inside the crank shaft 35, the fifth bearing 36 is connected with a first connecting rod 34, a sixth bearing 33 is mounted inside the first connecting rod 34, a first connecting shaft 32 is mounted inside the sixth bearing 33, the first connecting shaft 32 is fixed to a second connecting rod 47, the second connecting rod 47 is fixed through a second connecting shaft 44, two seventh bearings 45 are mounted at two ends of the second connecting shaft 44 respectively, the two seventh bearings 45 are mounted in two third supporting seats 46 respectively, the third supporting seat 46 is fixedly connected to a second supporting frame 37, the other end of the second connecting rod 47 is fixedly connected to a third connecting shaft 42, an eighth bearing 43 is mounted on the third connecting shaft 42, the eighth bearing 43 is mounted on the third connecting rod 41, an eighth bearing 43 and a ninth bearing 39 are mounted at two ends of the third connecting rod 41 respectively, a fourth connecting shaft 40 penetrates through the ninth bearing 39, the fourth connecting shaft 40 is fixedly connected to the piston rod 38, the piston rod 38 is movably connected to the second support frame 37.

Further, the milling multi-station indexing fixture for cabin parts comprises four same clamping devices, four racks 48 are vertically fixed on the side face of the connecting block 49, four connecting rod mechanisms and corresponding connecting rod transmission mechanisms are uniformly distributed on the upright post cover 10, and the second gears 25 in the four connecting rod driving mechanisms are respectively meshed with the four racks 48 on the connecting block 49 in a one-to-one correspondence manner.

Further, the milling multi-station indexing fixture for cabin parts further comprises four positioning blocks mounted on the mounting plate 12, each positioning block is used for positioning the corresponding to-be-machined part 51, the four positioning blocks can be mounted on the mounting plate 12 simultaneously, the four positioning blocks are used for positioning the four to-be-machined parts 51 respectively, and the four to-be-machined parts 51 correspond to the four clamping devices respectively.

In the embodiment, through the arrangement of the air cylinder 50, the rack 48, the second gear 25, the third gear 30, the crank shaft 35, the first connecting rod 34, the piston rod 38 and the like, the air cylinder 50 drives the piston rod 38 to move through the rack 48, the second gear 25, the crank shaft 35 and other parts, the control of the clamping force is realized through the accurate control of the telescopic rod of the air cylinder 50, the workpiece 51 to be machined is more stable in a clamping state, and the clamping reliability of the cabin body part milling multi-station indexing fixture is enhanced.

The working principle of the multi-station transposition clamp for milling cabin parts is as follows:

when the cabin body part milling multi-station transposition clamp is used, four positioning blocks matched with a workpiece 51 to be machined are selected and installed on the mounting plate 12, the workpiece 51 to be machined is positioned through the positioning blocks, then the cylinder 50 in the clamp is connected to an external power supply, and the telescopic rod of the cylinder 50 is controlled to stretch out so as to drive the connecting block 49 connected to the telescopic rod of the cylinder 50 and the rack 48 on the telescopic rod to move upwards. The rack 48 moves upwards to drive the second gear 25 engaged with the rack, so that the second gear 25 rotates, the second gear 25 is engaged with the third gear 30 to drive the crank shaft 35 to rotate anticlockwise, the crank shaft 35 rotates anticlockwise to enable the first connecting rod 34 to swing anticlockwise, the first connecting rod 34 drives the second connecting rod 47 to swing clockwise around the second connecting shaft, the second connecting rod 47 drives the third connecting rod 41 to swing clockwise, finally, the third connecting rod 41 drives the piston rod 38 limited by the second supporting frame 37 to move downwards, and the suction cup 52 at the lower part of the piston rod 38 realizes the compression of the workpiece 51.

When two workpieces 51 to be machined on one side are machined, the motor 17 of the rotating device 2 is connected to an external power supply, the main shaft of the motor 17 drives the first stepped shaft 19 to rotate, so that the first bevel gear 21 arranged on the first stepped shaft 19 rotates, the first bevel gear 21 drives the second bevel gear 23 to rotate through mutual meshing, the second bevel gear 23 drives the second stepped shaft 24 to rotate, the worm 9 arranged on the second stepped shaft 24 rotates, the worm wheel 14 is driven to rotate through matching with the worm 9, the worm wheel 14 further drives the third stepped shaft 15 and the first gear 3 to rotate, the first gear 3 drives the inner gear 4 to rotate through mutual meshing, the bearing cover 5 fixedly connected with the inner gear 4 and the mounting plate 12 rotate together, the box body cover 6 and the bearing cover 5 which are transited through the thrust ball bearing 8 realize relative rotation, and finally realize relative rotation of the lower mechanism of the mounting plate 12, the mounting plate 12 and the upper mechanism thereof, thereby completing the steering requirement of the processed piece and the piece to be processed 51.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. Cabin body part milling process multistation transposition anchor clamps, its characterized in that includes:

the clamping device (1) is used for clamping and fixing the workpiece (51) to be processed;

the rotating device (2) is fixedly connected with the clamping device (1) and is used for driving the clamping device (1) and the workpiece (51) to be machined to rotate among all stations;

the control panel is respectively electrically connected with the air cylinder (50) in the clamping device (1) and the motor (17) in the rotating device (2) and is used for controlling the pressure of the air cylinder (50), so that the clamping device (1) clamps a workpiece to be processed (51) and controlling the rotation of the motor (17) to rotate the rotating device (2);

the rotating device comprises a box body cover (6), a box body (7), a thrust ball bearing (8), a bearing cover (5), an internal gear (4), a motor (17), a first support frame (18), a first stepped shaft (19), a first bearing (20), a first bevel gear (21), a second stepped shaft (24), a second bevel gear (23), a first bearing seat (22), a second bearing seat (13), a worm (9), a worm wheel (14), a first gear (3), a third stepped shaft (15) and a second bearing (16);

the inside of the box body (7) is fixedly connected with a first support frame (18), the first support frame (18) is provided with two bearing mounting holes, the races of a first bearing (20) and a second bearing (16) are respectively and fixedly connected with the bearing mounting holes, the race of the first bearing (20) is fixedly connected with a first step shaft (19), one end of the first step shaft (19) is fixedly connected with the output shaft of a motor (17), the motor (17) is fixed in the box body (7), the other end of the first step shaft (19) is fixedly connected with a first bevel gear (21), the first bevel gear (21) is meshed with a second bevel gear (23), the second bevel gear (23) is fixedly connected with a second step shaft (24), the second step shaft (24) is fixed on the first support frame (18) through a first bearing seat (22) and a second bearing seat (13), one end of the second step shaft (24) is in threaded connection with a worm (9), worm (9) cooperatees with worm wheel (14), worm wheel (14) fixed connection is on third step shaft (15), the race fixed connection of third step shaft (15) one end and second bearing (16), first gear (3) of third step shaft (15) other end fixed connection, first gear (3) mesh mutually with internal gear (4), internal gear (4) fixed connection is on bearing cap (5), bearing cap (5) fixed mounting is on one side race of thrust ball bearing (8), the opposite side race fixed connection of thrust ball bearing (8) is on box lid (6), box lid (6) fixed connection is on box (7).

2. The milling machining multi-station indexing fixture for cabin parts according to claim 1, wherein the clamping device comprises a mounting plate (12), an upright post (11), an upright post cover (10), a cylinder (50), a connecting block (49), a rack (48), a connecting rod mechanism and a connecting rod transmission mechanism, wherein the connecting rod transmission mechanism comprises a second support frame (37), a first support seat (28), a second support seat (31), a second gear (25), a third bearing (26), a fourth stepped shaft (27), a third gear (30) and a fourth bearing (29);

the bottom and the internal gear (4) fixed connection of mounting panel (12), the top of mounting panel (12) and the bottom fixed connection of stand (11), cylinder (50) are located the inside of stand (11), connecting block (49) fixed connection is on the telescopic link of cylinder (50), and vertical fixed at least one rack (48) in side of connecting block (49), the top fixed connection stand lid (10) of stand (11), be equipped with the trompil that supplies connecting block (49) to stretch out on stand lid (10), and be equipped with at least one on stand lid (10) link mechanism with rack (48) cooperation is with the power transmission to this link mechanism's of cylinder (50) production link drive mechanism, piston rod (38) among the link mechanism pass behind the spacing hole on second support frame (37) fixed connection sucking disc (52), link mechanism will treat that machined part (51) are pressed at the installation through sucking disc (52) under the drive of the link drive that corresponds and press The control panel is arranged on the plate (12) and used for adjusting the clamping force of the connecting rod mechanism on the workpiece (51) to be processed through pressure control on the air cylinder (50);

in the connecting rod transmission mechanism, a first supporting seat (28) and a second supporting seat (31) are fixed on an upright post cover (10), a second gear (25) meshed with a rack (48) is fixedly connected onto a fourth stepped shaft (27), two ends of the fourth stepped shaft (27) are respectively fixed onto the first supporting seat (28) and the second supporting seat (31) through a third bearing (26), the second gear (25) is meshed with a third gear (30), the third gear (30) is fixedly connected onto a crank shaft (35) in the connecting rod transmission mechanism, and the crank shaft (35) is respectively connected with the first supporting seat (28) and the second supporting seat (31) through two fourth bearings (29).

3. The milling machining multi-station indexing clamp for the cabin parts according to claim 2, wherein the connecting rod mechanism comprises a crank shaft (35), a fifth bearing (36), a first connecting rod (34), a sixth bearing (33), a first connecting shaft (32), a second connecting rod (47), a third supporting seat (46), a seventh bearing (45), a second connecting shaft (44), an eighth bearing (43), a third connecting shaft (42), a third connecting rod (41), a fourth connecting shaft (40), a ninth bearing (39) and a piston rod (38);

the crank shaft (35) is hinged with one end of the first connecting rod (34) through a fifth bearing (36), the other end of the first connecting rod (34) is hinged with one end of the second connecting rod (47) through a sixth bearing (33) and the first connecting shaft (32), the other end of the second connecting rod (47) is hinged with one end of the third connecting rod (41) through an eighth bearing (43) and a third connecting shaft (42), the middle part of the second connecting rod (47) is hinged on a third supporting seat (46) through a seventh bearing (45) and a second connecting shaft (44), the third supporting seat (46) is fixed on the second supporting frame (37), the other end of the third connecting rod (41) is hinged with one end of the piston rod (38) through a ninth bearing (39) and a fourth connecting shaft (40), and the other end of the piston rod (38) is fixedly connected with the sucker (52).

4. The milling machining multi-station indexing fixture for cabin parts according to claim 2, wherein four racks (48) are vertically fixed on the side face of the connecting block (49), four connecting rod mechanisms and corresponding connecting rod transmission mechanisms are uniformly distributed on the upright post cover (10), and second gears (25) in the four connecting rod driving mechanisms are respectively meshed with the four racks (48) on the connecting block (49) in a one-to-one correspondence manner.

5. The milling multi-station indexing fixture for cabin parts according to claim 2, further comprising four positioning blocks mounted on the mounting plate (12), each positioning block being used for positioning a corresponding workpiece (51) to be machined.

6. The milling multi-station indexing fixture for cabin parts according to claim 2, wherein the control panel is fixedly connected to the side surface of the mounting plate (12).

7. The milling machining multi-station indexing fixture for cabin parts according to claim 1, wherein two ends of the first support frame (18) are respectively provided with a first screw hole, and the first support frame (18) is fixed at the bottom of the box body (7) through the first screw holes and screws.

8. The milling machining multi-station indexing fixture for cabin parts according to claim 1, wherein the four corners of the box body cover (6) are respectively provided with a second screw hole, and the box body cover (6) is fixed on the top of the box body (7) through screws in threaded fit with the second screw holes.