CN214237052U

CN214237052U - Ratchet assembly production line of electric operating mechanism

Info

Publication number: CN214237052U
Application number: CN202120273066.3U
Authority: CN
Inventors: 顾志文
Original assignee: Wuxi Kaiyi Science And Technology Co ltd
Current assignee: Wuxi Kaiyi Science And Technology Co ltd
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2021-09-21
Anticipated expiration: 2031-01-30

Abstract

The application relates to the field of motor operating mechanism assembling equipment, in particular to a ratchet assembly assembling production line of an electric operating mechanism, which comprises a riveting machine head, a moving mechanism for driving the riveting machine head to move, a lower plate riveting table, an upper plate riveting table, a ratchet assembly assembling table, a first transfer mechanism and a second transfer mechanism; the upper plate riveting table is used for riveting the upper plate and the second pin shaft into a first semi-finished product; the first transfer mechanism is used for transferring the first semi-finished product to the ratchet wheel assembly assembling table, so that the second pin shaft on the ratchet wheel assembly assembling table is positioned above the upper plate. This application will fix a position second round pin axle and upper plate on the upper plate riveting bench, fix a position hypoplastron and first round pin axle on the lower plate riveting bench, all replace manual execution with the manipulator at the operation of ratchet subassembly location ratchet and pawl on the ratchet subassembly assembly bench, has solved the problem that manual assembly ratchet subassembly leads to the part of neglected loading easily.

Description

Ratchet assembly production line of electric operating mechanism

Technical Field

The application relates to the field of motor operating mechanism assembling equipment, in particular to a ratchet assembly production line of an electric operating mechanism.

Background

The electric operating mechanism is an accessory for a remote automatic opening and closing circuit breaker, and comprises a motor operating mechanism and an electromagnet operating mechanism. No matter the electromagnet or the motor is adopted, the attracting and rotating directions of the electromagnet or the motor are the same, and the closing and opening purposes are achieved only by the position of the cam inside the electric operating mechanism.

Fig. 1 shows a ratchet assembly of an electric operating mechanism, which includes an upper plate 1 and a lower plate 2 parallel to each other, a first pin 3 is riveted on the surface of the lower plate 2 facing away from the upper plate 1, a pawl 4, a ratchet 5 and a plurality of second pins 6 are arranged between the upper plate 1 and the lower plate 2, the pawl 4 is pivoted on the second pins 6, a circular hole 7 is arranged on the lower plate 2, and the ratchet 5 is pivoted in the circular hole 7.

When assembling the ratchet wheel assembly of the electric operating mechanism, a first pin shaft 3 is riveted on the lower plate 2, then a plurality of second pin shafts 6 are riveted on the upper plate 1, then a ratchet wheel 5 is positioned on the upper plate 1, a pawl 4 is arranged on the second pin shafts 6, and finally the second pin shafts 6 are riveted with the lower plate 2. The operation is carried out by putting the workpiece on a riveting machine for riveting after manual assembly by workers in the prior art, and the workpiece is frequently neglected to be installed due to more workpieces, so that the unqualified repair quantity is large.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the manual assembly ratchet assembly leads to the part of neglected loading easily, this application provides an electric operating mechanism's ratchet assembly production line.

The application provides an electric operating mechanism's ratchet subassembly assembly line adopts following technical scheme:

a ratchet assembly production line of an electric operating mechanism comprises a riveting machine head, a moving mechanism for driving the riveting machine head to move, a lower plate riveting table, an upper plate riveting table, a ratchet assembly table, a first transfer mechanism and a second transfer mechanism;

the upper plate riveting table is used for riveting the upper plate and the second pin shaft into a first semi-finished product;

the first transfer mechanism is used for transferring the first semi-finished product to the ratchet wheel assembly assembling table, so that a second pin shaft on the ratchet wheel assembly assembling table is positioned above the upper plate;

the ratchet wheel assembly assembling table is used for mounting a pawl and a ratchet wheel on the first semi-finished product to form a second semi-finished product;

the lower plate riveting table is used for riveting the lower plate and the first pin shaft into a third semi-finished product;

the second transfer mechanism is used for transferring the third semi-finished product to a second semi-finished product on the ratchet assembly assembling table, so that the first pin shafts on the ratchet assembly assembling table are positioned above the lower plate, and pin holes of the lower plate are in one-to-one corresponding insertion connection with the second pin shafts;

and the rotary riveting machine head is used for riveting and forming the first semi-finished product, the third semi-finished product and the lower plate and the second pin shaft.

By adopting the technical scheme, the second pin shaft and the upper plate are sequentially positioned on the upper plate positioning die, the top of the second pin shaft is inserted into a pin hole of the upper plate, then the top of the second pin shaft and the upper plate are riveted by using the riveting machine head to form a first semi-finished product, and then the first semi-finished product is turned over by 180 degrees by using the first transfer mechanism and is transferred to the ratchet wheel assembly die for positioning;

and then, mounting a ratchet wheel and a pawl on the first semi-finished product on the ratchet wheel assembly mold to form a second semi-finished product, riveting the top of the first pin shaft on the lower plate positioning mold to form a third semi-finished product, and transferring the third semi-finished product to the second semi-finished product by using a second transfer mechanism to rivet the third semi-finished product to form a finished product.

The operations of positioning the second pin shaft and the upper plate on the upper plate riveting table, positioning the lower plate and the first pin shaft on the lower plate riveting table and positioning the ratchet wheel and the pawl on the ratchet wheel assembly table can be performed by using a manipulator instead of a manual operation, so that the problem that parts are easy to neglected to assemble due to manual assembly of the ratchet wheel assembly is solved.

Optionally, the moving mechanism includes a frame, a horizontal first guide rail is fixed to the frame, a first slider dragged by a drag chain is slidably connected to the first guide rail, a first motor and a horizontal second guide rail are fixed to the first slider, the second guide rail is perpendicular to the first guide rail, the first motor is connected to a first lead screw in a driving manner, the first lead screw is parallel to the second guide rail, a first nut seat is screwed to the first lead screw, a second slider is slidably connected to the second guide rail, the second slider and the first nut seat are fixedly connected to a translation seat, a second motor and a vertical third guide rail are fixed to the translation seat, the second motor is connected to a second lead screw in a driving manner, a second nut seat is screwed to the second lead screw, a third slider is slidably connected to the third guide rail, and the third slider and the second nut seat are both fixed to a spin riveting machine head.

By adopting the technical scheme, the vertical and horizontal movement of the spin riveting machine head on the horizontal plane and the vertical movement of the spin riveting machine head are realized.

Optionally, the station for riveting and forming the first semi-finished product, the station for riveting and forming the third semi-finished product, and the station for riveting and forming the third semi-finished product and the second semi-finished product are connected to form a straight line parallel to the first guide rail.

Through adopting above-mentioned technical scheme, only need tow chain and second motor work, can realize riveting the aircraft nose in turn on three station soon.

Optionally, the lower plate riveting table, the upper plate riveting table and the ratchet assembly assembling table are all rotary platforms, a plurality of lower plate positioning dies are equidistantly distributed on the lower plate riveting table around a rotary center, a plurality of upper plate positioning dies are equidistantly distributed on the upper plate riveting table around the rotary center, and a plurality of ratchet assembly dies are equidistantly distributed on the ratchet assembly assembling table around the rotary center.

By adopting the technical scheme, the plurality of stations on the rotary platform form the production line, so that the first semi-finished product, the second semi-finished product and the third semi-finished product are continuously manufactured, and the assembly efficiency is improved.

Optionally, the first transfer mechanism includes a first telescopic cylinder which is vertically upward, a piston rod of the first telescopic cylinder is fixed with a rotary cylinder, a rotary plate of the rotary cylinder is fixed with a first clamping jaw cylinder, and the first clamping jaw cylinder is used for clamping a first semi-finished product.

By adopting the technical scheme, the first semi-finished product is clamped by the first clamping jaw cylinder, the first clamping jaw cylinder is rotated by 180 degrees by the rotating cylinder, then the first telescopic cylinder drives the first clamping jaw cylinder to descend, and finally the first semi-finished product is loosened by the first clamping jaw cylinder, so that the first semi-finished product can fall on a designated position on the ratchet wheel assembly assembling table to be positioned.

Optionally, the device further comprises a manipulator for inserting a second pin shaft into the upper plate positioning mold.

Through adopting above-mentioned technical scheme, second round pin axle is more in quantity, replaces the manual work with the manipulator, and is not only efficient, error such as neglected loading can not appear moreover.

Optionally, the manipulator includes a fixed plate, a third motor and a horizontal fourth guide rail are fixed on the fixed plate, the fourth guide rail is perpendicular to the first guide rail, a fourth slider is slidably connected to the fourth guide rail, the third motor is drivingly connected to a third lead screw, a third nut seat is screwed to the third lead screw, and the third nut seat and the fourth slider are fixedly connected to a sliding plate; a fourth motor and a horizontal fifth guide rail are fixed on the sliding plate, the fifth guide rail is perpendicular to the fourth guide rail, a fifth sliding block is connected on the fifth guide rail in a sliding mode, the fourth motor is connected with a fourth lead screw in a driving mode, a fourth nut seat is connected onto the fourth lead screw in a threaded mode, the fourth nut seat and the fifth sliding block are fixedly connected with a second telescopic cylinder which faces vertically downwards, a piston rod of the second telescopic cylinder is fixedly connected with a second clamping jaw cylinder, and the second clamping jaw cylinder is used for clamping a second pin shaft sent out by the feeding vibration disc and placing the second pin shaft at a specified position on the upper plate positioning die.

Through adopting above-mentioned technical scheme, realized that second clamping jaw cylinder is automatic to be got the function of inserting appointed position on the upper plate positioning die behind the second round pin axle from the discharge gate clamp of pay-off vibration dish.

Optionally, the fixing plate is fixed on the frame.

By adopting the technical scheme, the bracket does not need to be additionally manufactured for the manipulator, so that the cost is saved, and the space is saved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the operations of positioning the second pin shaft and the upper plate on the upper plate riveting table, positioning the lower plate and the first pin shaft on the lower plate riveting table and positioning the ratchet wheel and the pawl on the ratchet wheel assembly table are all performed by using a manipulator instead of a manual operation, so that the problem that parts are easy to neglected to assemble due to manual assembly of the ratchet wheel assembly is solved;

2. a plurality of stations on the rotary platform form a production line, so that the first semi-finished product, the second semi-finished product and the third semi-finished product are continuously manufactured, and the assembly efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of a ratchet assembly in the background art of the present application;

FIG. 2 is a schematic view of an overall structure of an assembly line for ratchet assemblies according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of an overall configuration of an assembly line for ratchet assemblies according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a robot in an embodiment of the present application;

FIG. 5 is an enlarged view of portion A of FIG. 2;

FIG. 6 is an enlarged view of portion B of FIG. 2;

FIG. 7 is an enlarged view of portion C of FIG. 2;

fig. 8 is an enlarged view of a portion D in fig. 2.

Description of reference numerals: 1. an upper plate; 2. a lower plate; 3. a first pin shaft; 4. a pawl; 5. a ratchet wheel; 6. a second pin shaft; 7. a circular hole; 8. riveting a machine head; 9. a lower plate riveting table; 10. an upper plate riveting table; 11. a ratchet assembly station; 12. a lower plate positioning die; 13. positioning the die on the upper plate; 14. assembling a die for the ratchet wheel; 15. a first transfer mechanism; 16. a second transfer mechanism; 17. a frame; 18. a first guide rail; 19. a second guide rail; 20. a third guide rail; 21. a fourth guide rail; 22. a fifth guide rail; 23. a first motor; 24. a second motor; 25. a third motor; 26. a fourth motor; 27. a first slider; 28. a second slider; 29. a third slider; 30. a fourth slider; 31. a fifth slider; 32. a drag chain; 33. a first lead screw; 34. a second lead screw; 35. a third lead screw; 36. a fourth lead screw; 37. a first nut seat; 38. a second nut seat; 39. a third nut seat; 40. a fourth nut seat; 41. a translation seat; 42. a first telescopic cylinder; 43. a rotating cylinder; 44. a first jaw cylinder; 45. a fixing plate; 46. a sliding plate; 47. a second telescopic cylinder; 48. a second jaw cylinder; 49. a manipulator; 50. a first semi-finished product; 51. a second semi-finished product; 52. a third semi-finished product; 53. a work bench.

Detailed Description

The present application is described in further detail below with reference to figures 2-8.

The embodiment of the application discloses an assembly production line for a ratchet assembly of an electric operating mechanism. Referring to fig. 2, the assembly line of the ratchet assembly of the electric operating mechanism includes a table 53, on which three circular rotating platforms are provided on the table 53: a lower plate riveting table 9, an upper plate riveting table 10 and a ratchet assembly assembling table 11.

Referring to fig. 3, a frame 17 is fixed on the worktable 53, a horizontal first guide rail 18 is fixed on the top of the frame 17, the first guide rail 18 is slidably connected with a first slide block 27, and a drag chain 32 for dragging the first slide block 27 is further arranged on the top of the frame 17. The first slide block 27 is fixed with the first motor 23 and the horizontal second guide rail 19, and the second guide rail 19 is vertical to the first guide rail 18. The first motor 23 is connected with a first lead screw 33 in a driving manner, the first lead screw 33 is parallel to the second guide rail 19, and a first nut seat 37 is connected to the first lead screw 33 in a threaded manner. The second slide block 28 is slidably connected to the second rail 19, and the second slide block 28 and the first nut seat 37 are jointly fixed to a translation seat 41.

Referring to fig. 2, the translation base 41 is fixed with the second motor 24 and the vertical third guide rail 20, the second motor 24 is connected with the second lead screw 34 in a driving manner, and the second lead screw 34 is connected with the second nut base 38 in a threaded manner. The third guide rail 20 is connected with a third slide block 29 in a sliding manner, the third slide block 29 and the second nut seat 38 are jointly fixed on the spin riveting head 8, and the spin riveting head 8 is vertical.

Referring to fig. 2, the circle center connecting line of the lower plate riveting table 9, the upper plate riveting table 10 and the ratchet assembly assembling table 11 is parallel to the first guide rail 18.

Referring to fig. 2, the upper plate riveting table 10 has six stations equidistantly arranged around the center of the upper plate, an upper plate positioning mold 13 is fixed to each station, the upper plate positioning mold 13 is used for positioning the second pin 6 and the upper plate 1, and the upper plate positioning mold 13 is used for riveting the upper plate 1 and the second pin 6 into the first semi-finished product 50.

Referring to fig. 2, since the number of the second pins 6 is large, the work of installing and positioning the second pins 6 on the upper plate positioning mold 13 is performed by the robot 49.

Referring to fig. 2 and 4, the robot 49 includes a fixing plate 45 fixed to the frame 17, and the third motor 25 and the horizontal fourth guide rail 21 are fixed to the fixing plate 45: the fourth guide rail 21 is perpendicular to the first guide rail 18, and a fourth sliding block 30 is connected on the fourth guide rail 21 in a sliding manner; the third motor 25 is in driving connection with a third lead screw 35, and a third nut seat 39 is in threaded connection with the third lead screw 35; the third nut holder 39 and the fourth slider 30 are fixedly connected to a slide plate 46.

Referring to fig. 2 and 4, the sliding plate 46 has the fourth motor 26 and the horizontal fifth guide rail 22 fixed thereto: the fifth guide rail 22 is perpendicular to the fourth guide rail 21, and a fifth slider 31 is connected on the fifth guide rail 22 in a sliding manner; the fourth motor 26 is in driving connection with a fourth lead screw 36, and a fourth nut seat 40 is in threaded connection with the fourth lead screw 36; the fourth nut seat 40 and the fifth slider 31 are fixedly connected with a second telescopic cylinder 47, and a piston rod of the second telescopic cylinder 47 faces downwards vertically.

Referring to fig. 2 and 4, a piston rod of the second telescopic cylinder 47 is fixedly connected with a second clamping jaw cylinder 48, and the second clamping jaw cylinder 48 is used for clamping the second pin shaft 6 sent out by the feeding vibration disc and placing the second pin shaft at a specified position on the upper plate positioning die 13.

Referring to fig. 2, the manipulator 49 inserts the second pin shaft 6 at the designated position of the upper plate positioning mold 13, then positions the upper plate 1 at the designated position of the upper plate positioning mold 13, at this time, the top of the second pin shaft 6 is inserted into the corresponding pin hole of the upper plate 1 (see fig. 5), and the riveting head 8 moves right above the second pin shaft 6 and then descends to complete the riveting of the upper plate 1 and the second pin shaft 6, so as to obtain the first semi-finished product 50.

Referring to fig. 2, a ratchet assembly assembling table 11 is located between the lower plate riveting table 9 and the upper plate riveting table 10, and a first transfer mechanism 15 is provided between the upper plate riveting table 10 and the ratchet assembly assembling table 11.

Referring to fig. 2, the first transfer mechanism 15 is used to transfer the first semi-finished product 50 to the ratchet assembly table 11, and when the first semi-finished product 50 is positioned on the ratchet assembly table 11, the second pin 6 is located above the upper plate 1 (see fig. 6). The first transfer mechanism 15 is composed of a first telescopic cylinder 42, a rotary cylinder 43 and a first clamping jaw cylinder 44, the first telescopic cylinder 42 is fixed on the workbench 53, a piston rod of the first telescopic cylinder 42 faces upwards vertically, the rotary cylinder 43 is fixed on the piston rod of the first telescopic cylinder 42, the first clamping jaw cylinder 44 is fixed on a rotary plate of the rotary cylinder 43, and the first clamping jaw cylinder 44 is used for clamping the first semi-finished product 50.

Referring to fig. 2, the ratchet assembly table 11 has four stations equidistantly arranged around its center, each station is fixed with one ratchet assembly mold 14, and the mounting of the pawl 4 and the ratchet 5 (see fig. 7) on the first semi-finished product 50 is completed on one ratchet assembly mold 14 to obtain the second semi-finished product 51.

Referring to fig. 2, the lower plate riveting table 9 has four stations equidistantly arranged around the center of the lower plate, each station is fixed with a lower plate positioning mold 12, and the lower plate positioning mold 12 is used for positioning the first pin 3 and the lower plate 2 and riveting the lower plate 2 and the first pin 3 into a third semi-finished product 52. The manipulator 49 inserts the first pin shaft 3 at the designated position of the lower plate positioning mold 12, and then positions the lower plate 2 at the designated position of the lower plate positioning mold 12, at this time, the top of the first pin shaft 3 is inserted into the corresponding pin hole of the lower plate 2, and the riveting head 8 moves right above the first pin shaft 3 and then descends to complete the riveting of the lower plate 2 and the first pin shaft 3, so as to obtain a third semi-finished product 52.

Referring to fig. 2, a second transfer mechanism 16 (not shown and replaced by a dotted frame in fig. 2) is provided between the lower plate riveting station 9 and the ratchet assembly assembling station 11, and the second transfer mechanism 16 has the same structure as the first transfer mechanism 15. The second transfer mechanism 16 is used for transferring the third semi-finished product 52 to the second semi-finished product 51 on the ratchet assembly assembling table 11, and when the third semi-finished product 52 is positioned on the second semi-finished product 51, the first pins 3 are located above the lower plate 2, and the pin holes of the lower plate 2 are in one-to-one corresponding insertion connection with the second pins 6 (see fig. 8).

Referring to fig. 2, the station for riveting the first semifinished product 50 (see fig. 5 in detail), the station for riveting the third semifinished product 52, and the station for riveting the third semifinished product 52 and the second semifinished product 51 (see fig. 8 in detail) are connected in a line parallel to the first guide 18.

The implementation principle of the ratchet assembly production line of the electric operating mechanism provided by the embodiment of the application is as follows:

sequentially positioning a second pin shaft 6 and an upper plate 1 on an upper plate positioning die 13, inserting the top of the second pin shaft 6 into a pin hole of the upper plate 1, riveting the top of the second pin shaft 6 and the upper plate 1 by using a spin riveting machine head 8 to form a first semi-finished product 50, and turning the first semi-finished product 50 180 degrees by using a first transfer mechanism 15 to transfer the first semi-finished product to a ratchet wheel assembly die 14 for positioning;

next, the ratchet 5 and the pawl 4 are mounted on the first semi-finished product 50 on the ratchet assembly mold 14 to form a second semi-finished product 51, the top of the first pin 3 is riveted on the lower plate 2 on the lower plate positioning mold 12 to form a third semi-finished product 52, and the third semi-finished product 52 is transferred to the second semi-finished product 51 by the second transfer mechanism 16 to be riveted into a finished product.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an electric operating mechanism's ratchet subassembly assembly line, is riveted aircraft nose (8) including revolving to and the drive revolves the moving mechanism that aircraft nose (8) removed, its characterized in that:

the riveting device also comprises a lower plate riveting table (9), an upper plate riveting table (10), a ratchet assembly assembling table (11), a first transfer mechanism (15) and a second transfer mechanism (16);

the upper plate riveting table (10) is used for riveting the upper plate (1) and the second pin shaft (6) into a first semi-finished product (50);

the first transfer mechanism (15) is used for transferring the first semi-finished product (50) to the ratchet assembly assembling table (11) so that a second pin shaft (6) on the ratchet assembly assembling table (11) is positioned above the upper plate (1);

the ratchet wheel assembly assembling table (11) is used for mounting a pawl (4) and a ratchet wheel (5) on the first semi-finished product (50) to form a second semi-finished product (51);

the lower plate riveting table (9) is used for riveting the lower plate (2) and the first pin shaft (3) into a third semi-finished product (52);

the second transfer mechanism (16) is used for transferring the third semi-finished product (52) to a second semi-finished product (51) on the ratchet assembly platform (11), so that the first pin shafts (3) on the ratchet assembly platform (11) are positioned above the lower plate (2), and pin holes of the lower plate (2) are correspondingly inserted with the second pin shafts (6) one by one;

the rotary riveting machine head (8) is used for riveting and forming a first semi-finished product (50), a third semi-finished product (52) and a lower plate (2) and a second pin shaft (6).

2. The line of assembling ratchet assemblies for electric operating mechanisms according to claim 1, wherein: the moving mechanism comprises a rack (17), a horizontal first guide rail (18) is fixed on the rack (17), a first sliding block (27) dragged by a drag chain (32) is connected on the first guide rail (18) in a sliding manner, a first motor (23) and a horizontal second guide rail (19) are fixed on the first sliding block (27), the second guide rail (19) is perpendicular to the first guide rail (18), the first motor (23) is connected with a first lead screw (33) in a driving manner, the first lead screw (33) is parallel to the second guide rail (19), a first nut seat (37) is screwed on the first lead screw (33), a second sliding block (28) is connected on the second guide rail (19) in a sliding manner, the second sliding block (28) and the first nut seat (37) are fixedly connected with a translation seat (41), a second motor (24) and a vertical third guide rail (20) are fixed on the translation seat (41), and the second motor (24) is connected with a second lead screw (34) in a driving manner, a second nut seat (38) is screwed on the second lead screw (34), a third slide block (29) is connected on the third guide rail (20) in a sliding way, and the third slide block (29) and the second nut seat (38) are both fixed on the spin riveting machine head (8).

3. The line of assembling ratchet assemblies for electric operating mechanisms according to claim 2, wherein: the station for riveting and forming the first semi-finished product (50), the station for riveting and forming the third semi-finished product (52) and the second semi-finished product (51) are connected into a straight line parallel to the first guide rail (18).

4. The line of assembling ratchet assemblies for electric operating mechanisms according to claim 2, wherein: lower plate riveting platform (9), upper plate riveting platform (10), ratchet subassembly equipment platform (11) are rotary platform, distribute a plurality of lower plate positioning die (12) around rotation center equidistance on lower plate riveting platform (9), distribute a plurality of upper plate positioning die (13) around rotation center equidistance on upper plate riveting platform (10), distribute a plurality of ratchet assembly die (14) around rotation center equidistance on ratchet subassembly equipment platform (11).

5. The line of assembling ratchet assemblies for electric operating mechanisms according to claim 1, wherein: the first transfer mechanism (15) comprises a first telescopic cylinder (42) which is vertically upward, a rotary cylinder (43) is fixed on a piston rod of the first telescopic cylinder (42), a first clamping jaw cylinder (44) is fixed on a rotary plate of the rotary cylinder (43), and the first clamping jaw cylinder (44) is used for clamping the first semi-finished product (50).

6. The line of assembling ratchet assemblies for electric operating mechanisms according to claim 4, wherein: the device also comprises a manipulator (49) for inserting the second pin shaft (6) into the upper plate positioning die (13).

7. The line of assembling ratchet assemblies for electric operating mechanisms according to claim 6, wherein: the manipulator (49) comprises a fixed plate (45), a third motor (25) and a horizontal fourth guide rail (21) are fixed on the fixed plate (45), the fourth guide rail (21) is perpendicular to the first guide rail (18), a fourth sliding block (30) is connected on the fourth guide rail (21) in a sliding manner, the third motor (25) is connected with a third lead screw (35) in a driving manner, a third nut seat (39) is screwed on the third lead screw (35), and the third nut seat (39) and the fourth sliding block (30) are fixedly connected with a sliding plate (46); a fourth motor (26) and a horizontal fifth guide rail (22) are fixed on the sliding plate (46), the fifth guide rail (22) is perpendicular to the fourth guide rail (21), a fifth sliding block (31) is connected on the fifth guide rail (22) in a sliding mode, the fourth motor (26) is connected with a fourth lead screw (36) in a driving mode, a fourth nut seat (40) is in threaded connection with the fourth lead screw (36), the fourth nut seat (40) and the fifth sliding block (31) are fixedly connected with a second telescopic cylinder (47) which faces downwards vertically, a second clamping jaw cylinder (48) is fixedly connected to a piston rod of the second telescopic cylinder (47), and the second clamping jaw cylinder (48) is used for clamping a second pin shaft (6) sent out by the feeding vibration disc and placing the second pin shaft at a specified position on the upper plate positioning die (13).

8. The line of assembling ratchet assemblies for electric operating mechanisms according to claim 7, wherein: the fixing plate (45) is fixed on the frame (17).