CN212917183U

CN212917183U - Stamping equipment with positioning function for fault diagnosis of special-shaped sheet

Info

Publication number: CN212917183U
Application number: CN202021770943.XU
Authority: CN
Inventors: 胡蓓; 肖威; 何坤浩
Original assignee: Chongqing Shuzhiyuan Intelligent Equipment Technology Co ltd
Current assignee: Shanghai Xinghaitian Stamping Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-04-09
Anticipated expiration: 2030-08-24

Abstract

The invention discloses a punching device with a positioning function for fault diagnosis of a special-shaped sheet, which comprises a main body frame, wherein a conveying belt is arranged on the left side of the lower part in the main body frame, a first telescopic rod is arranged above a sucking disc, a first air cylinder is arranged above the left side of an extensible column, a second telescopic rod is welded on the right side of the extensible column, a second air cylinder is arranged on the right side of the left side of the first rotary rod, a steering plate is arranged on the right side of the first rotary rod, the punching device with the positioning function for fault diagnosis of the special-shaped sheet is characterized in that the extensible column is arranged, the second air cylinder drives the second telescopic rod to transversely move through a second air rod, the second telescopic rod drives the extensible column to transversely move, and the first air cylinder drives the first extensible column to longitudinally move through the first air rod, the first telescopic column drives the sucker to move longitudinally, so that automatic feeding operation is conveniently carried out on different special-shaped sheets.

Description

Stamping equipment with positioning function for fault diagnosis of special-shaped sheet

Technical Field

The invention relates to the technical field of stamping of special-shaped sheets, in particular to stamping equipment with a positioning function for fault diagnosis of special-shaped sheets.

Background

The stamping utilizes a die to make metal plates into various sheet-shaped parts, shells and container-type workpieces on a press machine, or make pipe fittings into various tubular workpieces, called stamping for short, the stamping process is a production technology for obtaining product parts with certain shapes, sizes and performances by means of the power of conventional or special stamping equipment to enable the sheet materials to directly bear deformation force and deform in the die, the stamping operation is applied to the automobile industry more, the conventional special-shaped sheet stamping equipment cannot accurately position a special-shaped sheet, the special-shaped sheet is damaged when the stamping operation is carried out, the use requirements of people cannot be well met, and technical innovation is carried out on the basis of the conventional visual detection equipment aiming at the situations.

Disclosure of Invention

The invention aims to provide stamping equipment with a positioning function for fault diagnosis of a special-shaped sheet, which is used for solving the problems that the general stamping equipment cannot accurately position the special-shaped sheet, causes damage to the special-shaped sheet during stamping operation and cannot well meet the use requirements of people.

In order to achieve the purpose, the invention provides the following technical scheme: a punching device with a positioning function for fault diagnosis of a special-shaped sheet comprises a main body frame, wherein a conveying belt is installed on the left side of the lower portion inside the main body frame, a sucker is arranged above the conveying belt, a first telescopic rod is installed above the sucker, a telescopic column is arranged above the first telescopic rod, a first air cylinder is installed above the inner portion on the left side of the telescopic column, a first air rod is installed below the first air cylinder, a second telescopic rod is welded on the right side of the telescopic column, a first rotating rod is installed on the right side of the second telescopic rod, a second air cylinder is installed on the right side of the inner portion on the left side of the first rotating rod, a second air rod is installed on the right side of the second air cylinder, a steering plate is installed on the right side of the first rotating rod, a first rotating shaft is connected below the steering plate in a rotating mode, a groove is formed in the upper portion of the steering plate, a moving rod is installed above the first sliding block, a first kinematic pair is installed above the moving rod, a curved rod is welded on the right side of the first kinematic pair, a second rotating shaft is installed above the right side of the curved rod, a right servo motor is installed above the second rotating shaft, a positioning cylinder is installed on the right side of the inner lower portion of the main body frame, a moving plate is installed on the outer side of the positioning cylinder, a supporting column is installed inside the positioning cylinder, a lower die is welded above the supporting column, an upper die is installed above the lower die, a lifting plate is welded above the upper die, a limiting column is installed inside the left side of the lifting plate, a third air rod is welded above the lifting plate, a third air cylinder is installed above the third air rod, a first rack is welded above the moving plate, a first gear is meshed above the first rack, a second rack is meshed above the first gear, a fourth air rod is arranged on the right side of the second rack, a fourth air cylinder is arranged on the right side of the fourth air rod, a third rack is welded on the right side of the positioning cylinder barrel, a second gear is meshed on the right side of the third rack, a fourth rack is meshed on the right side of the second gear, a fifth air rod is arranged below the fourth rack, a fifth air cylinder is arranged below the fifth air rod, a clamping frame is arranged above the right side of the positioning cylinder barrel, a sixth air cylinder is arranged on the left side of the lower portion inside the clamping frame, a sixth air rod is arranged on the right side of the sixth air cylinder, a second sliding block is welded on the right side of the sixth air rod, a second kinematic pair is screwed on the left side of the upper portion of the second sliding block, a first connecting rod is screwed on the upper portion of the second kinematic pair, a third kinematic pair is screwed in the middle of the first connecting rod, and a limiting ring is arranged on the outer side of the third kinematic pair, the welding of the below of restriction ring has the lifter the outside below ann of lifter changes the restriction piece, the top of first connecting rod has connect the fourth motion pair soon, and the second connecting rod is installed to the top of fourth motion pair, the right side of second connecting rod has connect the fifth motion pair soon, the top of second connecting rod has connect the sixth motion pair soon, the top of fifth motion pair has connect the third connecting rod soon, and the top of third connecting rod has connect the seventh motion pair soon, the left side of the seventh motion pair has connect the second rotary rod soon, and the below of second rotary rod has connect the eighth motion pair soon, that has tight piece of clamp is pinned to the left side below of second rotary rod.

Preferably, the vertical central line of sucking disc and the vertical central line of conveyer belt coincide mutually, and first cylinder passes through to constitute extending structure between first gas pole and the first telescopic link, and the flexible length of first telescopic link equals with the distance of sucking disc to the conveyer belt.

Preferably, the second cylinder forms a telescopic structure through the second air rod and the second telescopic rod, and the telescopic length of the second telescopic rod is equal to the distance from the limiting column to the vertical center line of the lower die.

Preferably, the steering plate is fan-shaped, the curved rod forms a rotary connection structure with the steering plate through the moving rod, and the rotation angle of the steering plate is 120 °.

Preferably, the vertical center line of the sucking disc and the vertical center line of the limiting column are in a symmetrical relation with the perpendicular bisector of the first rotating shaft.

Preferably, the curved lever is a curved connecting rod, and the curved lever bending angle is 60 °.

Preferably, the cross section of the positioning cylinder barrel is square, and the number of teeth of the third rack, the number of teeth of the fourth rack, the number of teeth of the first rack are equal to the number of teeth of the second rack, and the length of the side face of the positioning cylinder barrel is equal.

Preferably, the third kinematic pair forms a lifting structure through a lifting rod and a limiting block.

Preferably, the lower part of the clamping block is hemispherical, the seventh kinematic pair forms a rotating structure with the clamping block through the second rotating rod, and the rotating angle of the clamping block is 60 °.

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

1. according to the automatic feeding device, the telescopic columns are arranged, the second air cylinder drives the second telescopic rod to move transversely through the second air rod, the second telescopic rod drives the telescopic columns to move transversely, the first air cylinder drives the first telescopic column to move longitudinally through the first air rod, and the first telescopic column drives the suction disc to move longitudinally, so that automatic feeding operation of different special-shaped sheets is facilitated.

2. According to the automatic feeding and discharging device, the steering plate is arranged, the servo motor rotates to drive the second rotating shaft to rotate, the second rotating shaft drives the curved rod to rotate, the curved rod is a bent connecting rod, the bending angle of the curved rod is 60 degrees, the curved rod drives the moving rod to move along the groove through the first moving pair, the moving rod drives the steering plate to rotate 120 degrees through the first sliding block, the special-shaped sheets are transferred to the lower die from the conveying belt, and automatic feeding and discharging operations are achieved.

3. According to the automatic positioning and stamping device, the movable plate is arranged, the fourth air cylinder drives the second rack to move through the fourth air rod, the second rack drives the first rack to move through the second gear, the first rack drives the positioning cylinder to move transversely through the movable plate, the fifth air cylinder drives the fourth rack to move through the fifth air rod, the fourth rack drives the third rack to move through the second gear, the third rack drives the positioning cylinder to move longitudinally, and the clamping frame is driven to move by the movement of the positioning cylinder in two directions together, so that the automatic positioning and stamping operation is realized.

4. According to the invention, the lifting rod is arranged, the sixth air cylinder drives the second sliding block to move through the sixth air rod, the second sliding block drives the first connecting rod to rotate through the second kinematic pair, the first connecting rod drives the third kinematic pair to move in the limiting ring, and the limiting ring drives the lifting rod to move in the limiting block, so that the rotating angle of the first connecting rod is controlled, the force of the clamping block on the special-shaped sheet is conveniently controlled, and the damage of the clamping block on the special-shaped sheet is reduced.

5. According to the invention, through the arrangement of the clamping block, the first connecting rod rotates to drive the fourth kinematic pair to rotate, the fourth kinematic pair drives the fifth kinematic pair to rotate by taking the sixth kinematic pair as a circle center through the second connecting rod, the fifth kinematic pair drives the seventh kinematic pair to rotate through the third connecting rod, the seventh kinematic pair drives the second rotating rod to move through the eighth kinematic pair, the rotating rod drives the clamping block to move to clamp the special-shaped sheet, the lower part of the clamping block is hemispherical, the damage of the clamping block to the special-shaped sheet is reduced, and the rotation angle of the clamping block is 60 degrees, so that the clamping operation on the special-shaped sheets with different thicknesses is facilitated.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1A according to the present invention;

FIG. 3 is a side view of the deflector of the present invention;

FIG. 4 is a schematic top view of the positioning cylinder of the present invention;

FIG. 5 is a schematic view of the structure of FIG. 1B according to the present invention.

In the figure: 1. a main body frame; 2. a conveyor belt; 3. a suction cup; 4. a first telescopic rod; 5. a telescopic column; 6. a first cylinder; 7. a first gas lever; 8. a second telescopic rod; 9. a first rotating rod; 10. a second cylinder; 11. a second gas lever; 12. a steering plate; 13. a first rotating shaft; 14. a groove; 15. a first slider; 16. a motion bar; 17. a first kinematic pair; 18. a curved bar; 19. a second rotating shaft; 20. a servo motor; 21. positioning the cylinder barrel; 22. a support pillar; 23. a lower die; 24. an upper die; 25. a lifting plate; 26. a limiting column; 27. a third gas lever; 28. a third cylinder; 29. a first rack; 30. a first gear; 31. a second rack; 32. a fourth gas lever; 33. a fourth cylinder; 34. a third rack; 35. a second gear; 36. a fourth rack; 37. a fifth gas lever; 38. a fifth cylinder; 39. a clamping frame; 40. a sixth cylinder; 41. a sixth gas lever; 42. a second slider; 43. a second kinematic pair; 44. a first link; 45. a third kinematic pair; 46. a confinement ring; 47. a lifting rod; 48. a limiting block; 49. a fourth kinematic pair; 50. a second link; 51. a fifth kinematic pair; 52. a sixth kinematic pair; 53. a third link; 54. a seventh kinematic pair; 55. a second rotating rod; 56. an eighth kinematic pair; 57. a clamping block; 58. and (5) moving the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a punching device with a positioning function for fault diagnosis of special-shaped sheets comprises a main body frame 1, a conveying belt 2 is arranged on the left side of the lower portion inside the main body frame 1, a sucker 3 is arranged above the conveying belt 2, a first telescopic rod 4 is arranged above the sucker 3, a telescopic column 5 is arranged above the first telescopic rod 4, a first air cylinder 6 is arranged above the inner portion on the left side of the telescopic column 5, a first air rod 7 is arranged below the first air cylinder 6, the vertical central line of the sucker 3 is coincident with the vertical central line of the conveying belt 2, the first air cylinder 6 forms a telescopic structure with the first telescopic rod 4 through the first air rod 7, the telescopic length of the first telescopic rod 4 is equal to the distance from the sucker 3 to the conveying belt 2, the first air cylinder 6 drives the sucker 3 on the first telescopic rod 4 to load and unload the telescopic rod through the first air rod 7, and automatically operates the sheets, the right side of the telescopic column 5 is welded with a second telescopic rod 8, the right side of the second telescopic rod 8 is provided with a first rotating rod 9, the right side inside the left side of the first rotating rod 9 is provided with a second air cylinder 10, the right side of the second air cylinder 10 is provided with a second air rod 11, the right side of the first rotating rod 9 is provided with a steering plate 12, the lower part of the steering plate 12 is screwed with a first rotating shaft 13, the upper part of the steering plate 12 is provided with a groove 14, the inner part of the groove 14 is provided with a first sliding block 15, the upper part of the first sliding block 15 is provided with a moving rod 16, the upper part of the moving rod 16 is provided with a first moving pair 17, the right side of the first moving pair 17 is welded with a curved rod 18, the steering plate 12 is fan-shaped, the curved rod 18 forms a screwing structure with the steering plate 12 through the moving rod 16, the rotating angle of the steering plate 12 is 120 degrees, the curved rod 18 drives the, the sheet is conveyed into a lower die 23 from a conveyor belt 2 to be punched, automatic feeding and discharging operations are realized, the rotation angle of a steering plate 12 is 120 degrees, the size of the equipment is reduced, a curved rod 18 is a curved connecting rod, the bending angle of the curved rod 18 is 60 degrees, the curved rod 18 can drive the steering plate 12 to rotate around a first rotating shaft 13 through a moving rod 16 conveniently, a second rotating shaft 19 is installed above the right side of the curved rod 18, a right servo motor 20 is installed above the second rotating shaft 19, a positioning cylinder 21 is installed on the right side below the inside of a main body frame 1, a supporting column 22 is installed inside the positioning cylinder 21, the lower die 23 is welded above the supporting column 22, an upper die 24 is installed above the lower die 23, a lifting plate 25 is welded above the upper die 24, a limiting column 26 is installed inside the left side of the lifting plate 25, a telescopic structure is formed between the second air cylinder 10 and a second telescopic rod 8 through a second air, and the telescopic length of the second telescopic rod 8 is equal to the distance from the limit column 26 to the vertical central line of the lower die 23, the second air cylinder 10 drives the second telescopic rod 8 to move through the second air rod 11, so as to reduce the damage to the equipment when the first rotating rod 9 swings, and realize the automatic feeding and discharging operation, the vertical central line of the suction cup 3 and the vertical central line of the limit column 26 are in a symmetrical relationship about the perpendicular bisector of the first rotating shaft 13, when the steering plate 12 rotates around the first rotating shaft 13, the continuous feeding and discharging operation can be performed, the stamping efficiency is improved, the third air rod 27 is welded above the lifting plate 25, the third air cylinder 28 is installed above the third air rod 27, the first rack 29 is welded above the positioning cylinder 21, the first gear 30 is meshed above the first rack 29, the second rack 31 is meshed above the first gear 30, and the fourth air rod 32 is installed on the right side of the second rack 31, a fourth air cylinder 33 is installed on the right side of the fourth air rod 32, a third rack 34 is welded on the right side of the positioning cylinder 21, a second gear 35 is meshed on the right side of the third rack 34, a fourth rack 36 is meshed on the right side of the second gear 35, the cross section of the positioning cylinder 21 is square, the number of teeth of the third rack 34, the number of teeth of the fourth rack 36 and the number of teeth of the first rack 29 are equal to the number of teeth of the second rack 31 and the length of the side face of the positioning cylinder 21, the second rack 31 drives the first rack 29 to move through the first gear 30 to drive the movable plate 58 to move transversely, the fourth rack 36 drives the third rack 34 to move through the second gear 35, the third rack 34 drives the positioning cylinder 21 to move longitudinally, the positioning operation of the clamping frame 39 is realized, a fifth air rod 37 is installed below the fourth rack 36, a fifth air cylinder 38 is installed below the fifth air rod 37, a clamping frame 39 is arranged above the right side of the positioning cylinder 21, a sixth air cylinder 40 is arranged on the left side of the lower portion inside the clamping frame 39, a sixth air rod 41 is arranged on the right side of the sixth air cylinder 40, a second sliding block 42 is welded on the right side of the sixth air rod 41, a second kinematic pair 43 is screwed on the left side of the upper portion of the second sliding block 42, a first connecting rod 44 is screwed on the upper portion of the second kinematic pair 43, a third kinematic pair 45 is screwed in the middle of the first connecting rod 44, a limiting ring 46 is arranged on the outer side of the third kinematic pair 45, a limiting block 48 is arranged below the outer portion, welded on the lower portion of the limiting ring 46, of a lifting rod 47 and a lifting rod 47, the third kinematic pair 45 forms a lifting structure through the lifting rod 47 and the limiting block 48, the second sliding block 42 drives the third kinematic pair 45 to rotate through the second kinematic pair 43, the third kinematic pair 45 drives the lifting rod 47 to move along the limiting block 48, and the situation that the sheet is damaged due to the overlarge pressure, the clamping block 57 is limited, the fourth kinematic pair 49 is screwed above the first connecting rod 44, the second connecting rod 50 is installed above the fourth kinematic pair 49, the fifth kinematic pair 51 is screwed on the right side of the second connecting rod 50, the sixth kinematic pair 52 is screwed on the second connecting rod 50, the third connecting rod 53 is screwed on the fifth kinematic pair 51, the seventh kinematic pair 54 is screwed on the third connecting rod 53, the second rotating rod 55 is screwed on the left side of the seventh kinematic pair 54, the eighth kinematic pair 56 is screwed on the lower side of the second rotating rod 55, the clamping block 57 is arranged below the left side of the second rotating rod 55, the lower side of the clamping block 57 is hemispherical, the seventh kinematic pair 54 forms a rotating structure with the clamping block 57 through the second rotating rod 55, the rotating angle of the clamping block 57 is 60 degrees, and the damage of the clamping block 57 to the sheet can be reduced by the hemispherical shape below the clamping block 57, and makes the clamping block 57 clamp more stably.

The working principle is as follows: when the punching equipment with the positioning function for fault diagnosis of the special-shaped sheet is used, firstly, the special-shaped sheet is placed on the conveyor belt 2, then the clamping operation is carried out, the first air cylinder 6 drives the first telescopic rod 4 through the first air rod 7, the first telescopic rod 4 drives the sucker 3 to suck the special-shaped sheet, then the servo motor 20 rotates to drive the second rotating shaft 19 to rotate, the second rotating shaft 19 drives the curved rod 18 to rotate, the curved rod 18 drives the moving rod 16 to move along the groove 14 through the first kinematic pair 17, the moving rod 16 drives the steering plate 12 to rotate 120 degrees through the first sliding block 15, the steering plate 12 rotates 120 degrees through the first rotating rod 9, secondly, the second air cylinder 10 drives the second telescopic rod 8 to move through the second air rod 11, the special-shaped sheet is transmitted from the conveyor belt 2 to the lower die 23 to carry out the automatic feeding operation, then the clamping operation is carried out, the sixth air cylinder 40 drives the second sliding block 42 to move through the sixth air rod 41, the second sliding block 42 drives the first link 44 to rotate through the second kinematic pair 43, the first link 44 drives the third kinematic pair 45 to move in the limiting ring 46, the limiting ring 46 drives the lifting rod 47 to move in the limiting block 48, the first link 44 rotates to drive the fourth kinematic pair 49 to rotate, the fourth kinematic pair 49 drives the fifth kinematic pair 51 to rotate around the sixth kinematic pair 52 through the second link 50, the fifth kinematic pair 51 drives the seventh kinematic pair 54 to rotate through the third link 53, the seventh kinematic pair 54 drives the second rotating rod 55 to move through the eighth kinematic pair 56, the second rotating rod 55 drives the clamping block 57 to move, so as to clamp the irregular sheet, and then, the positioning operation is performed, the fourth cylinder 33 drives the second rack 31 to move through the fourth air rod 32, the second rack 31 drives the first rack 29 to move through the first gear 30, and the first rack 29 drives the positioning cylinder 21 to move transversely through the moving plate 58, and the fifth cylinder 38 drives the fourth rack 36 to move through the fifth air rod 37, the fourth rack 36 drives the third rack 34 to move through the second gear 35, the third rack 34 drives the positioning cylinder 21 to move longitudinally, the two directions of movement of the positioning cylinder 21 drive the clamping frame 39 to move together, the positioning operation is realized on the special-shaped sheet on the clamping frame 39, then, the punching operation is performed, the third cylinder 28 drives the lifting plate 25 to move through the third air rod 27, the lifting plate 25 drives the upper die 24 to move along the limit column 26, and the punching operation is performed on the special-shaped sheet through the lower die 23, which is the working principle of the punching device with the positioning function for fault diagnosis of the special-shaped sheet.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dysmorphism thin slice fault diagnosis is with stamping equipment that has locate function, includes main body frame (1), its characterized in that: the conveying belt (2) is installed on the left side of the inside below of the main body frame (1), the sucker (3) is arranged above the conveying belt (2), the first telescopic rod (4) is installed above the sucker (3), the telescopic column (5) is arranged above the first telescopic rod (4), the first air cylinder (6) is installed above the inside of the left side of the telescopic column (5), the first air rod (7) is installed below the first air cylinder (6), the second telescopic rod (8) is welded on the right side of the telescopic column (5), the first rotary rod (9) is installed on the right side of the second telescopic rod (8), the second air cylinder (10) is installed on the right side of the inside of the left side of the first rotary rod (9), the second air rod (11) is installed on the right side of the second air cylinder (10), the steering plate (12) is installed on the right side of the first rotary rod (9), a first rotating shaft (13) is connected to the lower portion of the steering plate (12) in a screwed mode, a groove (14) is arranged inside the upper portion of the steering plate (12), a first sliding block (15) is installed inside the groove (14), a moving rod (16) is installed above the first sliding block (15), a first kinematic pair (17) is installed above the moving rod (16), a curved rod (18) is welded on the right side of the first kinematic pair (17), a second rotating shaft (19) is installed above the right side of the curved rod (18), a right servo motor (20) is installed above the second rotating shaft (19), a positioning cylinder barrel (21) is installed on the right side of the lower portion inside the main body frame (1), a moving plate (58) is installed on the outer side of the positioning cylinder barrel (21), a supporting column (22) is installed inside the positioning cylinder barrel (21), a lower die (23) is welded above the supporting column (22), an upper die (24) is installed above the lower die (23), a lifting plate (25) is welded above the upper die (24), a limiting column (26) is installed inside the left side of the lifting plate (25), a third air rod (27) is welded above the lifting plate (25), a third air cylinder (28) is installed above the third air rod (27), a first rack (29) is welded above the moving plate (58), a first gear (30) is meshed above the first rack (29), a second rack (31) is meshed above the first gear (30), a fourth air rod (32) is installed on the right side of the second rack (31), a fourth air cylinder (33) is installed on the right side of the fourth air rod (32), a third rack (34) is welded on the right side of the positioning cylinder barrel (21), and a second gear (35) is meshed on the right side of the third rack (34), a fourth rack (36) is meshed on the right side of the second gear (35), a fifth air rod (37) is installed below the fourth rack (36), a fifth air cylinder (38) is installed below the fifth air rod (37), a clamping frame (39) is installed above the right side of the positioning cylinder barrel (21), a sixth air cylinder (40) is installed on the left side of the lower portion inside the clamping frame (39), a sixth air rod (41) is installed on the right side of the sixth air cylinder (40), a second sliding block (42) is welded on the right side of the sixth air rod (41), a second kinematic pair (43) is screwed on the left side of the upper portion of the second sliding block (42), a first connecting rod (44) is screwed on the upper portion of the second kinematic pair (43), a third kinematic pair (45) is screwed in the middle of the first connecting rod (44), and a limiting ring (46) is installed on the outer side of the third kinematic pair (45), a lifting rod (47) is welded below the limiting ring (46), a rotation limiting block (48) is arranged below the outer part of the lifting rod (47), a fourth kinematic pair (49) is screwed above the first connecting rod (44), a second connecting rod (50) is arranged above the fourth kinematic pair (49), a fifth kinematic pair (51) is screwed on the right side of the second connecting rod (50), a sixth kinematic pair (52) is rotatably connected above the second connecting rod (50), a third connecting rod (53) is rotatably connected above the fifth kinematic pair (51), a seventh kinematic pair (54) is rotatably connected above the third connecting rod (53), a second rotating rod (55) is rotatably connected at the left side of the seventh kinematic pair (54), and an eighth kinematic pair (56) is screwed below the second rotating rod (55), and a clamping block (57) is arranged below the left side of the second rotating rod (55) for pressing.

2. The punching apparatus with positioning function for the fault diagnosis of the special-shaped sheet according to claim 1, characterized in that: the vertical central line of sucking disc (3) and the vertical central line of conveyer belt (2) coincide mutually, and just first cylinder (6) constitute extending structure through between first gas pole (7) and first telescopic link (4), and the flexible length of first telescopic link (4) equals with sucking disc (3) to the distance of conveyer belt (2).

3. The punching apparatus with positioning function for the fault diagnosis of the special-shaped sheet according to claim 1, characterized in that: and the second cylinder (10) forms a telescopic structure between the second air rod (11) and the second telescopic rod (8), and the telescopic length of the second telescopic rod (8) is equal to the distance from the limiting column (26) to the vertical central line of the lower die (23).

4. The punching apparatus with positioning function for the fault diagnosis of the special-shaped sheet according to claim 1, characterized in that: the steering plate (12) is fan-shaped, the curved rod (18) forms a screwing structure with the steering plate (12) through the moving rod (16), and the rotating angle of the steering plate (12) is 120 degrees.

5. The punching apparatus with positioning function for the fault diagnosis of the special-shaped sheet according to claim 1, characterized in that: the vertical center line of the sucker (3) and the vertical center line of the limiting column (26) are in a symmetrical relation with the perpendicular bisector of the first rotating shaft (13).

6. The punching apparatus with positioning function for the fault diagnosis of the special-shaped sheet according to claim 1, characterized in that: the bent lever (18) is a bent connecting rod, and the bending angle of the bent lever (18) is 60 degrees.

7. The punching apparatus with positioning function for the fault diagnosis of the special-shaped sheet according to claim 1, characterized in that: the cross-section of location cylinder (21) is the square, and the number of teeth of third rack (34), the number of teeth of fourth rack (36), the number of teeth of first rack (29) and the number of teeth of second rack (31) are equal, and are equal with the side length of location cylinder (21).

8. The punching apparatus with positioning function for the fault diagnosis of the special-shaped sheet according to claim 1, characterized in that: the third kinematic pair (45) forms a lifting structure through a lifting rod (47) and a limiting block (48).

9. The punching apparatus with positioning function for the fault diagnosis of the special-shaped sheet according to claim 1, characterized in that: the lower part of the clamping block (57) is hemispherical, a seventh kinematic pair (54) forms a rotating structure with the clamping block (57) through a second rotating rod (55), and the rotating angle of the clamping block (57) is 60 degrees.