CN220407806U

CN220407806U - Lock riveting device for large nut of automobile main speed reducer

Info

Publication number: CN220407806U
Application number: CN202321820521.2U
Authority: CN
Inventors: 杨伟; 赵胜忠; 朱新波
Original assignee: Hubei Jingchuan Intelligent Equipments Co ltd
Current assignee: Hubei Jingchuan Intelligent Equipments Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-01-30
Anticipated expiration: 2033-07-12

Abstract

The utility model relates to a locking rivet device of a large nut of an automobile main speed reducer, and belongs to the technical field of assembly equipment of large nuts of automobile main speed reducers. The locking riveting device of the large nut of the automobile main speed reducer comprises a rack, a lifting sliding seat, a locker, a riveting device and a conveying line; the lifting slide seat is arranged on the frame through the driving cylinder, the balancing weight and the control chain; a conveying line is arranged below the lifting sliding seat; the lifting sliding seat is provided with a locker and a riveting device; the locking device comprises a locking sleeve, a locking motor, a limiting turntable and a traversing slide seat; the lifting slide seat is provided with a transverse sliding slide seat through a guide rail and a pushing cylinder. The locking riveting device for the large nut of the automobile main speed reducer has the advantages of compact structure and ingenious design, solves the problems of high labor intensity and low working efficiency existing in the existing assembly mode of the large nut of the automobile main speed reducer, and is particularly suitable for the requirement of the assembly and use of the large nut of the automobile main speed reducer.

Description

Lock riveting device for large nut of automobile main speed reducer

Technical Field

The utility model relates to a locking rivet device of a large nut of an automobile main speed reducer, and belongs to the technical field of assembly equipment of large nuts of automobile main speed reducers.

Background

In the technical field of automobile main speed reducer assembly, an automobile main speed reducer comprises an input shaft 1, a gear disc 2 and a large nut 3; the input shaft 1 is provided with a gear disc 2; a large nut 3 is connected with the input shaft 1 above the gear disc 2 in a threaded manner; the large nut 3 is connected with a riveting groove 4 arranged on the input shaft 1 in a riveting way. The existing assembly mode of the large nut of the automobile main speed reducer, such as the riveting tool and the riveting method of the flange nut disclosed in the utility model patent application with the application publication number of CN113798402A, can also finish the assembly work of the nut, but still needs a large amount of manual operation in the existing assembly mode, and has the problems of high labor intensity and low working efficiency. Therefore, a new locking riveting device is necessary to be developed so as to solve the problems existing in the assembly of the large nut of the existing automobile main speed reducer.

Disclosure of Invention

The utility model aims at: the locking rivet device for the large nut of the automobile main speed reducer has the advantages of compact structure and ingenious design, and can solve the problems of high labor intensity and low working efficiency existing in the existing assembly mode of the large nut of the automobile main speed reducer.

The technical scheme of the utility model is as follows:

a locking riveting device of a large nut of an automobile main reducer comprises a frame, a lifting sliding seat, a locker, a riveting device and a conveying line; the method is characterized in that: the lifting slide seat is arranged on the frame through the driving cylinder, the balancing weight and the control chain; a conveying line is arranged below the lifting sliding seat; the lifting sliding seat is provided with a locker and a riveting device; the locking device comprises a locking sleeve, a locking motor, a limiting turntable and a traversing slide seat; the lifting slide seat is provided with a transverse sliding seat through a guide rail and a pushing cylinder; a limiting turntable is arranged on the traversing slide seat through a turntable motor; the limiting turntable is positioned below the lifting slide seat; the lifting sliding seat on one side of the limiting turntable is provided with a locking sleeve through a locking motor.

And a plurality of groups of meshing teeth are arranged on the circumferential surface of the limiting turntable at intervals.

The riveting device comprises a fixed clamping jaw, a movable clamping jaw, a clamping jaw control mechanism and a riveting cylinder; the lower end of the lifting sliding seat is provided with an assembly bracket; the assembly bracket is provided with a riveting head through a riveting cylinder which is obliquely arranged; a fixed clamping jaw is fixedly arranged on the assembly bracket at one side below the riveting cylinder; the movable clamping jaw is arranged on the assembly bracket at the other side below the riveting cylinder through a clamping jaw control mechanism.

The clamping jaw control mechanism comprises a control slide bar, a sliding block, a guide pin and a return spring; the assembly bracket on one side of the riveting cylinder is provided with a sliding block in a sliding way through a sliding rail; the bottom of the sliding block is fixedly provided with a movable clamping jaw; a control slide bar is arranged on an assembly bracket at one end of the sliding block through a control cylinder; one end of the control slide bar is inserted into the sliding block and then is connected with the sliding block in a sliding way; one side of the sliding block is provided with a guide pin; one end of the guide pin is inserted into the assembly bracket and then is connected with the assembly bracket in a sliding way; a guide pin at one side of the sliding block is sleeved with a reset spring; the sliding block always has a trend of outwards moving under the action of the elastic force of the return spring.

One end of the control slide bar is provided with a wedge-shaped surface; wedge-shaped holes are formed in the sliding blocks; the wedge-shaped surface of the control slide bar is in sliding connection with the wedge-shaped hole of the sliding block.

The middle part of the conveying line is provided with a transverse moving base through an air cylinder; the transversely moving base is provided with a lifting clamping seat through an air cylinder.

The utility model has the advantages that:

the locking riveting device for the large nut of the automobile main speed reducer has the advantages of compact structure and ingenious design, can mechanically complete the twisting and riveting work of the large nut of the automobile main speed reducer, solves the problems of high labor intensity and low working efficiency existing in the existing assembly mode of the large nut of the automobile main speed reducer, and is particularly suitable for the requirement of the assembly and use of the large nut of the automobile main speed reducer.

Drawings

FIG. 1 is a schematic diagram of a main speed reducer of an automobile;

FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;

FIG. 3 is a schematic view of the working state structure of the present utility model;

FIG. 4 is a schematic top view of FIG. 3;

FIG. 5 is a schematic diagram of the front view structure of FIG. 3;

FIG. 6 is an enlarged schematic view of the structure shown at B in FIG. 3;

FIG. 7 is a schematic view of the structure of the present utility model in a non-working state;

FIG. 8 is a schematic view of the structure of the conveyor line of the present utility model;

FIG. 9 is a schematic view of the structure of the lock of the present utility model;

FIG. 10 is a schematic top view of FIG. 9;

FIG. 11 is a schematic view of the structure of the riveting press according to the present utility model;

FIG. 12 is a schematic cross-sectional view of a rivet press of the present utility model;

fig. 13 is a schematic structural view of a control slider according to the present utility model.

In the figure: 1. an input shaft; 2. a gear plate; 3. a large nut; 4. riveting grooves; 5. a frame; 6. balancing weight; 7. controlling a chain; 8. lifting the sliding seat; 9. a conveying line; 10. a lock; 11. a riveting device; 12. a pushing cylinder; 13. a traversing slide; 14. a turntable motor; 15. defining a turntable; 16. locking a motor; 17. a locking sleeve; 18. meshing teeth; 19. assembling a bracket; 20. a riveting cylinder; 21. a riveting head; 22. fixing the clamping jaw; 23. a movable clamping jaw; 24. a sliding block; 25. lifting clamp seats; 26. a control cylinder; 27. controlling a slide bar; 28. a guide pin; 29. a return spring; 30. a wedge surface; 31. and traversing the base.

Detailed Description

The locking riveting device of the large nut of the automobile main speed reducer comprises a frame 5, a lifting sliding seat 8, a locker 10, a riveting device 11 and a conveying line 9 (see the accompanying drawings 1 and 2 in the specification).

The frame 5 is provided with a lifting slide 8 (see fig. 1 and 2 of the specification) through a driving cylinder, a balancing weight 6 and a control chain 7. When the driving cylinder works, the lifting sliding seat 8 can be driven to move up and down along the frame 5 under the cooperation of the balancing weight 6 and the control chain 7.

Below the lifting slide 8 is mounted a conveyor line 9 (see fig. 3 and 4 of the description). The conveyor line 9 is an outsourcing device which, in operation, can drive the workpiece back and forth in its upper part by means of a self-contained roller.

The middle part of the conveying line 9 is provided with a transverse moving base 31 through an air cylinder; the traversing base 31 is provided with a lifting clamp seat 25 (see fig. 8 of the specification) through an air cylinder. The traversing base 31 can move back and forth under the action of the air cylinder during operation; the lifting clamp seat 25 can move up and down under the pushing of the air cylinder. The lifting clamp seat 25 is provided with a positioning pin and a clamping pressure head; when the work piece is placed on the lifting clamp seat 25 in operation, the lifting clamp seat 25 can position the work piece through the positioning pin, and the work piece clamp can be fastened and fixed on the lifting clamp seat 25 through the clamping pressure head.

When the workpiece is moved to the upper part of the lifting clamp seat 25 under the action of the conveying line 9, the lifting clamp seat 25 can eject the workpiece out of the conveying line 9, and the clamping pressure head can fix the workpiece on the lifting clamp seat 25.

The lifting slide 8 is provided with a locking device 10 and a riveting device 11 (see fig. 6 and 7 of the specification).

The lock 10 includes a lock sleeve 17, a lock motor 16, a limit dial 15, and a traversing carriage 13 (see fig. 9 and 10 of the specification). The lifting slide 8 is provided with a traversing slide 13 (see fig. 10 of the specification) through a guide rail and a pushing cylinder 12. The pushing cylinder 12 can push the traversing slide 13 to move back and forth when working.

The traversing carriage 13 is provided with a limiting turntable 15 (see fig. 9 of the specification) by a turntable motor 14. The limit carousel 15 is located below the lifting slide 8. The turntable motor 14 is provided with a band-type brake device, and when the turntable motor 14 stops working in operation, the turntable motor 14 can keep the limiting turntable 15 fixed under the action of the band-type brake device.

A plurality of sets of engaging teeth 18 are provided at intervals on the circumferential surface defining the turntable 15 (see fig. 6 and 9 of the specification). The teeth of each set of teeth 18 are non-uniform; the purpose of this arrangement is that: because the workpiece automobile main reducer has various types, and the tooth shapes among the gear plates 2 on the workpiece automobile main reducer with various types are not consistent, after a plurality of groups of meshing teeth 18 with different tooth shapes are arranged on the limiting turntable 15, the locking riveting device can meet the assembly work of large nuts of the automobile main reducer with various types.

The lifting slide 8, which defines one side of the turntable 15, is provided with a locking sleeve 17 (see fig. 9 of the description) by means of a locking motor 16. The locking motor 16 is operative to rotate the locking sleeve 17.

The lifting slide seat 8 is provided with an identification camera (not shown in the drawing of the specification), and the identification camera is outsourcing equipment. The operation state of the workpiece can be monitored during the work; each execution part of the lock riveting device can act through data provided by the identification camera.

The riveting press 11 includes a fixed jaw 22, a movable jaw 23, a jaw control mechanism, and a riveting cylinder 20 (see fig. 11 and 12 of the specification).

The lower end of the lifting slide seat 8 is provided with an assembly bracket 19; the mounting bracket 19 is provided with a riveting head 21 by a riveting cylinder 20 which is installed in an inclined manner (see fig. 12 of the specification). The riveting cylinder 20 and the riveting head 21 are outsourcing equipment, and the riveting cylinder 20 can drive the riveting head 21 to act to complete the riveting action during working.

A fixed clamping jaw 22 is fixedly arranged on the assembly bracket 19 at one side below the riveting cylinder 20; the movable clamping jaw 23 is arranged on the assembly bracket 19 on the other side below the riveting cylinder 20 through a clamping jaw control mechanism. The jaw control mechanism operates to drive the movable jaw 23 back and forth relative to the fixed jaw 22.

The jaw control mechanism includes a control slide 27, a slide block 24, a guide pin 28 and a return spring 29 (see fig. 11 and 12 of the specification).

A sliding block 24 is arranged on the assembly bracket 19 at one side of the riveting cylinder 20 in a sliding way through a sliding rail; the bottom of the sliding block 24 is fixedly provided with a movable clamping jaw 23; a control slide bar 27 is arranged on the assembly bracket 19 at one end of the sliding block 24 through a control cylinder 26; one end of the control slide bar 27 is inserted into the sliding block 24 and then is connected with the sliding block in a sliding way; a guide pin 28 is arranged on one side of the sliding block 24; one end of the guide pin 28 is inserted into the mounting bracket 19 and then slidably connected thereto; a return spring 29 is sleeved on a guide pin 28 at one side of the sliding block 24; the slider 24 always has a tendency to move outwardly under the force of the return spring 29.

One end of the control slide 27 is provided with a wedge surface 30; wedge-shaped holes are formed in the sliding blocks 24; the wedge surface 30 of the control slide 27 is slidably connected to the wedge opening of the slider 24.

The purpose of the control slide 27 and the slide block 24 is thus to: so that the control cylinder 26 drives the control slide bar 27 to move towards the sliding block 24, and the control slide bar 27 can press the sliding block 24 through the wedge surface 30 to overcome the elasticity of the return spring 29 and then drive the movable clamping jaw 23 to move towards the fixed clamping jaw 22, thereby achieving the purpose of clamping a workpiece; when the control cylinder 26 drives the control slide bar 27 to move in the opposite direction of the sliding block 24, the sliding block 24 can be separated from the fixed clamping jaw 22 under the elastic force of the return spring 29, so that the purpose of loosening a workpiece can be achieved.

When the locking riveting device of the large nut of the automobile main speed reducer works, the conveying line 9 drives a workpiece to move to the upper side of the lifting clamping seat 25 through the roller, the lifting clamping seat 25 ascends under the pushing of the air cylinder to lift the workpiece out of the conveying line 9, and the workpiece clamp is fastened on the lifting clamping seat 25 through the clamping pressure head.

After the lifting clamp seat 25 fixes the workpiece, the large nut 3 is preloaded on the workpiece at the moment, and then the driving cylinder drives the lifting slide seat 8 to move downwards so that the locking sleeve 17 is in clamping connection with the large nut 3, and the limiting turntable 15 is positioned on one side of the gear disc 2 at the moment. And then the turntable motor 14 drives the limiting turntable 15 to rotate by a certain angle to enable the adaptive meshing teeth 18 to rotate to correspond to the gear disc 2, and the pushing cylinder 12 pushes the traversing slide seat 13 to act so as to enable the limiting turntable 15 to be meshed and connected with the gear disc 2. At this time, since the limiting turntable 15 can be kept stationary by the turntable motor 14, the limiting turntable 15 can be kept stationary with the engaged gear wheel 2.

When the gear plate 2 is kept fixed, the locking motor 16 drives the locking sleeve 17 to rotate to complete the screwing work of the large nut 3. The cylinder 12 is then pushed to move the traversing carriage 13 to disengage the limiting turntable 15 from the gear wheel 2 and the rear lifting clamp 25 is reset.

After the lifting clamp seat 25 is reset, the identification camera of the lifting slide seat 8 identifies the position of the riveting groove 4 on the workpiece. Then the lifting clamp seat 25 descends to enable the riveting groove 4 to rotate to a proper position in a mode of driving the large nut 3 to rotate through the locking sleeve 17, and then the riveting groove is reset.

When the riveting groove 4 rotates to a proper position, the transverse moving base 31 on the conveying line 9 acts to drive the workpiece to move to the position below the riveting device 11 through the lifting clamp seat 25, and then the action is stopped. Then the lifting clamping seat 25 descends to enable the fixed clamping jaw 22 and the movable clamping jaw 23 to be located on two sides of the gear disc 2 of the workpiece, the transverse moving base 31 drives the lifting clamping seat 25 and the workpiece to move to enable the gear disc 2 to be close to the fixed clamping jaw 22, then the control cylinder 26 drives the control sliding strip 27 to move towards the sliding block 24 to enable the sliding block 24 to be extruded to enable the movable clamping jaw 23 to move towards the gear disc 2, and finally the gear disc 2 is clamped and fixed.

After the gear plate 2 is clamped and fixed, the pressing cylinder 20 drives the riveting head 21 to align with the riveting groove 4 and the large nut 3, and reset is performed after the riveting action is completed. After the riveting head 21 is reset, the control cylinder 26 acts to reset the movable clamping jaw 23 to loosen the gear disc 2; the traversing carriage 31 then moves the workpiece to disengage the gear plate 2 from the fixed jaw 22 and the rear lifting clamp 25 is reset.

After the above operations are completed, the clamping ram on the conveyor line 9 releases the workpiece, and then the lifting clamp 25 moves down to make the machined workpiece fall on the conveyor line 9 again, and then the conveyor line 9 conveys the workpiece to the next station. The locking and riveting device of the large nut of the automobile main speed reducer can completely complete locking and riveting work of the large nut of the automobile main speed reducer, and the locking and riveting device can enter the next working cycle.

The locking riveting device for the large nut of the automobile main speed reducer has the advantages of compact structure and ingenious design, can mechanically complete the twisting and riveting work of the large nut 3 of the automobile main speed reducer, solves the problems of high labor intensity and low working efficiency existing in the existing assembly mode of the large nut 3 of the automobile main speed reducer, and is particularly suitable for the requirement of the assembly and use of the large nut 3 of the automobile main speed reducer.

Claims

1. The locking riveting device of the large nut of the automobile main speed reducer comprises a frame (5), a lifting sliding seat (8), a locking device (10), a riveting device (11) and a conveying line (9); the method is characterized in that: the lifting slide seat (8) is arranged on the frame (5) through the driving cylinder, the balancing weight (6) and the control chain (7); a conveying line (9) is arranged below the lifting sliding seat (8); the lifting slide seat (8) is provided with a locker (10) and a riveting device (11); the locker (10) comprises a locking sleeve (17), a locking motor (16), a limiting turntable (15) and a traversing slide seat (13); the lifting slide seat (8) is provided with a transverse sliding seat (13) through a guide rail and a pushing cylinder (12); a limiting turntable (15) is arranged on the traversing slide seat (13) through a turntable motor (14); the limiting turntable (15) is positioned below the lifting sliding seat (8); a locking sleeve (17) is arranged on the lifting sliding seat (8) which limits one side of the rotary table (15) through a locking motor (16).

2. The lock rivet device of a large nut of a main speed reducer of an automobile according to claim 1, wherein: a plurality of groups of meshing teeth (18) are arranged on the circumferential surface of the limiting turntable (15) at intervals.

3. The lock rivet device of a large nut of a main speed reducer of an automobile according to claim 1, wherein: the riveting device (11) comprises a fixed clamping jaw (22), a movable clamping jaw (23), a clamping jaw control mechanism and a riveting cylinder (20); the lower end of the lifting sliding seat (8) is provided with an assembly bracket (19); a riveting head (21) is arranged on the assembly bracket (19) through a riveting cylinder (20) which is obliquely arranged; a fixed clamping jaw (22) is fixedly arranged on an assembly bracket (19) at one side below the riveting cylinder (20); a movable clamping jaw (23) is arranged on an assembly bracket (19) at the other side below the riveting cylinder (20) through a clamping jaw control mechanism.

4. A lock rivet apparatus for a large nut of a final drive of an automobile according to claim 3, characterized in that: the clamping jaw control mechanism comprises a control slide bar (27), a sliding block (24), a guide pin (28) and a return spring (29); a sliding block (24) is arranged on an assembly bracket (19) at one side of the riveting cylinder (20) in a sliding way through a sliding rail; the bottom of the sliding block (24) is fixedly provided with a movable clamping jaw (23); a control slide bar (27) is arranged on an assembly bracket (19) at one end of the sliding block (24) through a control cylinder (26); one end of the control slide bar (27) is inserted into the sliding block (24) and then is connected with the sliding block in a sliding way; one side of the sliding block (24) is provided with a guide pin (28); one end of the guide pin (28) is inserted into the assembly bracket (19) and then is connected with the assembly bracket in a sliding way; a return spring (29) is sleeved on the guide pin (28) at one side of the sliding block (24); the sliding block (24) always has a trend of outwards moving under the action of the elastic force of the return spring (29).

5. The locking rivet apparatus of a large nut of a final drive of an automobile according to claim 4, wherein: one end of the control slide bar (27) is provided with a wedge-shaped surface (30); wedge-shaped holes are formed in the sliding blocks (24); the wedge-shaped surface (30) of the control slide bar (27) is in sliding connection with the wedge-shaped hole of the sliding block (24).

6. The lock rivet device of a large nut of a main speed reducer of an automobile according to claim 1, wherein: the middle part of the conveying line (9) is provided with a transverse moving base (31) through an air cylinder; the transversely moving base (31) is provided with a lifting clamping seat (25) through an air cylinder.