A laser quenching device for a steering gear housing

Abstract

This utility model relates to a laser quenching device for automotive steering gear housings, belonging to the field of automotive parts quenching technology. The laser quenching device for automotive steering gear housings includes a mounting frame, quenching components, drive component A, drive component B, clamping components, and a handling robot. The mounting frame is equipped with an indexing plate via an indexing motor. Multiple clamping components are mounted on the indexing plate. A handling robot is mounted on a mounting frame on one side of the indexing plate. Drive component A is mounted below the indexing plate on one side of the handling robot. An air injection connector is mounted on a mounting frame above drive component A via a pusher cylinder. This laser quenching device for automotive steering gear housings is compact and ingeniously designed, solving the problems of existing quenching methods for automotive steering gear housings, such as the need for manual loading and unloading and the limitation to quenching only the entire inner hole. It is particularly suitable for the requirements of quenching the inner hole of automotive steering gear housings.

Description

Technical Field

[0001] This utility model relates to a laser hardening device for automotive steering gear housings, belonging to the field of automotive parts hardening technology. Background Technology

[0002] In the field of automotive steering component manufacturing technology, it is necessary to harden the inner bore of the steering gear housing to improve the rigidity and hardness of the components. Currently, the internal hardening of automotive steering gear housings is generally achieved using laser hardening. Existing laser hardening equipment, such as the laser internal bore hardening device disclosed in invention patent application CN111893254A, while meeting the requirements to some extent, suffers from drawbacks including the need for manual loading and unloading and the limitation to hardening only the entire inner bore. Therefore, it is necessary to develop a dedicated device suitable for hardening the inner bore of automotive steering gear housings to address the aforementioned problems associated with existing hardening methods. Summary of the Invention

[0003] The purpose of this utility model is to provide a laser quenching device for automotive steering gear housings that is compact in structure and ingenious in design, and solves the problems of existing quenching methods for automotive steering gear housings, such as the need for manual loading and unloading and the limitation of quenching only the inner hole in a full circle.

[0004] The technical solution of this utility model is:

[0005] A laser hardening device for an automotive steering gear housing includes a mounting frame, a hardening assembly, a drive assembly A, a drive assembly B, a clamping assembly, and a handling robot. The device is characterized in that: an indexing plate is mounted on the mounting frame via an indexing motor; multiple clamping assemblies are mounted on the indexing plate; a handling robot is mounted on the mounting frame on one side of the indexing plate; drive assembly A is mounted below the indexing plate on one side of the handling robot; an air injection connector is mounted on the mounting frame above drive assembly A via a push cylinder; a hardening assembly is mounted on the mounting frame on the other side of the indexing plate; and drive assembly B is mounted below the indexing plate on one side of the hardening assembly.

[0006] The quenching assembly includes a quenching bracket, a laser quenching head, a lower slide plate, an upper slide block, a transverse lead screw, and a longitudinal lead screw. The lower slide plate is slidably mounted on the mounting bracket via the quenching bracket and a slide rail. The upper slide block is slidably mounted on the lower slide plate via a slide rail. A lifting slide plate is slidably mounted on the upper slide block via an adjusting cylinder and a slide rail. The laser quenching head is mounted on the lifting slide plate. A transverse lead screw is mounted on the quenching bracket on one side of the lower slide plate via a lead screw motor. The transverse lead screw is connected to the lower slide plate. A longitudinal lead screw is mounted on the lower slide plate on one side of the upper slide block. The longitudinal lead screw is connected to the upper slide block. A control handwheel is mounted at one end of the longitudinal lead screw.

[0007] The clamping assembly includes a pneumatic chuck, a mounting bracket, and a rotating shaft; the bottom end of the indexing plate is fitted with a rotating shaft via the mounting bracket and bearings; the upper end of the rotating shaft extends above the indexing plate and is fitted with a pneumatic chuck; the lower end of the rotating shaft is provided with a snap-fit ​​gear ring.

[0008] Both drive assembly A and drive assembly B include a lifting cylinder, vertical guide rods, a lifting plate, a drive motor, and a drive shaft. The lifting plate is slidably mounted on the mounting frame via multiple vertical guide rods. The drive shaft is mounted on the lifting plate via the drive motor. A snap-fit ​​groove is provided at the upper end of the drive shaft. The snap-fit ​​groove is intermittently snap-fitted to a snap-fit ​​gear ring. A lifting cylinder is mounted on the mounting frame below the lifting plate. The lifting cylinder is connected to the lifting plate.

[0009] The described handling robot includes a transverse slide, a lifting cylinder, a clamping cylinder, a control motor, and a transverse rack; the transverse slide is slidably mounted on the mounting frame via a support truss and guide rails; a drive gear is mounted on the transverse slide via a control motor; the drive gear meshes with the transverse rack mounted on the support truss; and a clamping cylinder is mounted on the transverse slide via a lifting cylinder.

[0010] The mounting frame is equipped with a conveyor belt on one side.

[0011] The advantages of this utility model are:

[0012] The laser quenching device for automotive steering gear housings is compact and ingeniously designed. It can load and unload workpieces using a robotic arm, and the laser quenching head can be inserted into the workpiece to complete the quenching process. This solves the problems of existing quenching methods for automotive steering gear housings, such as the need for manual loading and unloading and the limitation to quenching only the inner hole. It is particularly suitable for the requirements of quenching the inner hole of automotive steering gear housings. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the present invention after the quenching components have been removed;

[0016] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0017] Figure 5 This is a schematic diagram of the indexing plate and other components of this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the drive component of this utility model;

[0019] Figure 7 This is a schematic diagram of the clamping assembly of this utility model;

[0020] Figure 8 This is a schematic diagram of the clamping assembly of this utility model;

[0021] Figure 9 This is a top view of the clamping assembly.

[0022] Figure 10 for Figure 9 Schematic diagram of the cross-sectional structure along the BB direction;

[0023] Figure 11 This is a schematic diagram of the quenching component of this utility model;

[0024] Figure 12 This is a schematic diagram of the quenching component of this utility model.

[0025] In the diagram: 1. Mounting frame; 2. Indexing motor; 3. Indexing plate; 4. Clamping assembly; 5. Handling robot; 6. Drive assembly A; 7. Push cylinder; 8. Air injection connector; 9. Quenching assembly; 10. Drive assembly B; 11. Quenching bracket; 12. Lower slide plate; 13. Upper slide; 14. Adjusting cylinder; 15. Lifting slide plate; 16. Laser quenching head; 17. Lead screw motor; 18. Transverse lead screw; 19. Longitudinal lead screw; 20. Control handwheel; 21. Pneumatic chuck; 22. Assembly kit; 23. Rotary shaft; 24. Snap-fit ​​gear ring; 25. Vertical guide rod; 26. Lifting plate; 27. Drive motor; 28. Drive shaft; 29. ​​Snap-fit ​​groove; 20. Lifting cylinder; 30. Support truss; 31. Transverse slide; 32. Control motor; 33. Transverse rack; 34. Lifting cylinder; 35. Clamping cylinder; 36. Conveyor belt. Detailed Implementation

[0026] The laser hardening device for the automotive steering gear housing includes a mounting bracket 1, a hardening assembly 9, a drive assembly A6, a drive assembly B10, a clamping assembly 4, and a handling robot 5 (see the attached instruction manual). Figure 1 and 2 ).

[0027] The mounting bracket 1 is equipped with an indexing plate 3 via an indexing motor 2 (see instruction manual appendix). Figure 1 , 2 (and 5). During operation, the indexing motor 2 can drive the indexing plate 3 to rotate intermittently at a specified angle.

[0028] The indexing plate 3 is equipped with multiple sets of clamping components 4 (see instruction manual appendix). Figure 5The clamping assembly 4 includes a pneumatic chuck 21, a mounting bracket 22, and a rotating shaft 23; the rotating shaft 23 is mounted on the bottom end of the indexing plate 3 via the mounting bracket 22 and bearings. The upper end of the rotating shaft 23 extends above the indexing plate 3 and is fitted with the pneumatic chuck 21. The pneumatic chuck 21 is an externally purchased device, model TCPD3-125-2-CK; the jaws of the pneumatic chuck 21 are in an open state under the action of their internal springs, and are in a retracted state when gas is introduced into them.

[0029] The lower end of the rotating shaft 23 is provided with a snap-fit ​​gear ring 24 (see the instruction manual). Figure 7 , 8 (9 and 10). During operation, drive assembly A6 and drive assembly B10 can drive the rotating shaft 23 to rotate through the snap-fit ​​gear ring 24.

[0030] The indexing plate 3 is mounted on the mounting bracket 1 on one side, which is equipped with a handling robot 5 (see the instruction manual). Figure 1 and 2 ).

[0031] The handling robot 5 includes a transverse slide 32, a lifting cylinder 35, a clamping cylinder 36, a control motor 33, and a transverse rack 34 (see the instruction manual appendix). Figure 3 and 4 A transverse slide block 32 is slidably mounted on the mounting frame 1 via a support truss 31 and guide rails. A drive gear is mounted on the transverse slide block 32 via a control motor 33; the drive gear meshes with a transverse rack 34 mounted on the support truss 31; a clamping cylinder 36 is mounted on the transverse slide block 32 via a lifting cylinder 35. During operation, with the cooperation of the control motor 33 and the lifting cylinder 35, the clamping cylinder 36 can be driven to move along a specified trajectory.

[0032] One side of the mounting frame 1 is equipped with a conveyor belt 37 (see instruction manual appendix). Figure 1 and 2 During operation, the handling robot 5 can transfer the quenched workpiece to the conveyor belt 37 via the clamping cylinder 36.

[0033] The drive assembly A6 is mounted below the indexing plate 3 on one side of the handling robot 5; an air injection connector 8 is mounted on the mounting bracket 1 above the drive assembly A6 via the push cylinder 7 (see the instruction manual appendix). Figure 5 ).

[0034] When the pusher cylinder 7 pushes the air injection connector 8 to insert into the corresponding pneumatic chuck 21 to inject air into it, the chuck claws on the pneumatic chuck 21 will retract under the action of air pressure.

[0035] The quenching assembly 9 is mounted on the mounting bracket 1 on the other side of the indexing plate 3 (see the instruction manual appendix). Figure 1 and 2The quenching assembly 9 includes a quenching bracket 11, a laser quenching head 16, a lower slide plate 12, an upper slide block 13, a transverse lead screw 18, and a longitudinal lead screw 19.

[0036] A lower slide plate 12 is slidably mounted on the mounting frame 1 via a quenching bracket 11 and a slide rail; an upper slide block 13 is slidably mounted on the lower slide plate 12 via a slide rail; a lifting slide plate 15 is slidably mounted on the upper slide block 13 via an adjusting cylinder 14 and a slide rail; a laser quenching head 16 is mounted on the lifting slide plate 15; a transverse lead screw 18 is mounted on the quenching bracket 11 on one side of the lower slide plate 12 via a lead screw motor 17; the transverse lead screw 18 is connected to the lower slide plate 12; a longitudinal lead screw 19 is mounted on the lower slide plate 12 on one side of the upper slide block 13; the longitudinal lead screw 19 is connected to the upper slide block 13; a control handwheel 20 is mounted at one end of the longitudinal lead screw 19. During operation, the position of the upper slide block 13 can be adjusted by the longitudinal lead screw 19 and the transverse lead screw 18, so that the adjusting cylinder 14 can drive the laser quenching head 16 to insert into the workpiece from its center position with the cooperation of the lifting slide plate 15.

[0037] The drive assembly B10 is installed below the indexing plate 3 on one side of the quenching assembly 9 (see the instruction manual appendix). Figure 1 and 2 ).

[0038] Both drive assembly A6 and drive assembly B10 include a lifting cylinder 30, a vertical guide rod 25, a lifting plate 26, a drive motor 27, and a drive shaft 28 (see the instruction manual appendix). Figure 6 ).

[0039] A lifting plate 26 is slidably mounted on the mounting frame 1 via multiple vertical guide rods 25; a drive shaft 28 is mounted on the lifting plate 26 via a drive motor 27; a snap-fit ​​groove 29 is provided at the upper end of the drive shaft 28; the snap-fit ​​groove 29 is intermittently snap-fitted to the snap-fit ​​gear ring 24; a lifting cylinder 30 is mounted on the mounting frame 1 below the lifting plate 26; the lifting cylinder 30 is connected to the lifting plate 26 (see the appendix of the instruction manual). Figure 5 and 6 During operation, the lifting cylinder 30 can drive the lifting plate 26 to move up and down; when the lifting plate 26 moves upward and causes the drive shaft 28 to engage with the rotating shaft 23 of the clamping assembly 4 through the locking groove 29 and the locking gear ring 24, the drive motor 27 can drive the pneumatic chuck 21 to rotate through the drive shaft 28 and the rotating shaft 23.

[0040] The laser hardening device for the automotive steering gear housing also includes a CNC system that controls the various components to operate as required; this CNC system is an existing CNC system.

[0041] The laser hardening device for the automotive steering gear housing operates as follows: When the indexing plate 3 drives a set of clamping components 4 to rotate to correspond with the handling robot 5, the lifting cylinder 30 of the drive component A6 pushes the drive shaft 28 through the lifting plate 26 to engage with the rotating shaft 23 of the clamping component 4 via the engagement slot 29 and engagement gear ring 24. Subsequently, the drive motor 27 drives the pneumatic chuck 21 to rotate via the drive shaft 28 and the rotating shaft 23. When the air nozzle on the pneumatic chuck 21 aligns with the air injection connector 8, the push cylinder 7 pushes the air injection connector 8 into the corresponding pneumatic chuck 21 of the clamping component 4 to inject air into it, causing the jaws to retract. The drive component A6 then resets.

[0042] After the jaws of the pneumatic chuck 21 retract, the handling robot 5 moves to transfer the workpiece to be processed from other equipment to the pneumatic chuck 21 and then resets; subsequently, the push cylinder 7 drives the air injection connector 8 to reset; after the air injection connector 8 resets, the jaws of the pneumatic chuck 21 open under the action of the internal spring to clamp and fix the workpiece.

[0043] After the pneumatic chuck 21 of the clamping assembly 4 clamps and fixes the workpiece to be quenched, the indexing plate 3 rotates one position so that the clamping assembly 4 drives the workpiece to be quenched to rotate to correspond with the quenching assembly 9.

[0044] After the above work is completed, the lifting cylinder 30 of the drive assembly B10 pushes the drive shaft 28 through the lifting plate 26 to engage with the rotating shaft 23 of the clamping assembly 4 through the locking groove 29 and the locking gear ring 24. Then, the drive motor 27 can drive the pneumatic chuck 21 to rotate through the drive shaft 28 and the rotating shaft 23. During the rotation of the pneumatic chuck 21, the workpiece rotates synchronously. During the rotation of the workpiece, the adjusting cylinder 14 of the quenching assembly 9, with the cooperation of the lifting slide plate 15, drives the laser quenching head 16 to be inserted into the workpiece from the center position. It moves up and down inside the workpiece as required, thereby completing the quenching work of the inner hole of the workpiece. During this process, the laser quenching head 16 moves up and down inside the rotating workpiece to form the required quenching path in the inner hole.

[0045] After the workpiece is quenched, the quenching assembly 9 is reset. Then, the indexing plate 3 rotates one position, aligning the quenched workpiece with the transfer robot 5. At this point, the drive assembly A6 and the air injection connector 8 work together to release the workpiece from the pneumatic chuck 21. The transfer robot 5 then transfers the workpiece to the conveyor belt 37 and resets. Thus, the laser quenching device for the automotive steering gear housing has completed the internal quenching of the steering gear housing, and the device can now proceed to the next work cycle.

[0046] The laser quenching device for the automotive steering gear housing is compact and ingeniously designed. It can load and unload workpieces using a handling robot 5, and the laser quenching head 16 can be inserted into the workpiece to complete the quenching work during operation. This solves the problems of existing quenching methods for automotive steering gear housings, such as the need for manual loading and unloading and the limitation of quenching only the inner hole. It is particularly suitable for the requirements of quenching the inner hole of automotive steering gear housings.

Claims

1. A laser hardening device for an automotive steering gear housing, comprising a mounting bracket (1), a hardening assembly (9), a drive assembly A (6), a drive assembly B (10), a clamping assembly (4), and a handling robot (5); characterized in that: The mounting frame (1) is equipped with an indexing plate (3) via an indexing motor (2); the indexing plate (3) is equipped with multiple clamping components (4); a handling robot (5) is mounted on the mounting frame (1) on one side of the indexing plate (3); a drive component A (6) is mounted below the indexing plate (3) on one side of the handling robot (5); an air injection connector (8) is mounted on the mounting frame (1) above the drive component A (6) via a push cylinder (7); a quenching component (9) is mounted on the mounting frame (1) on the other side of the indexing plate (3); a drive component B (10) is mounted below the indexing plate (3) on one side of the quenching component (9).

2. The laser hardening device for an automotive steering gear housing according to claim 1, characterized in that: The quenching assembly (9) includes a quenching bracket (11), a laser quenching head (16), a lower slide plate (12), an upper slide block (13), a transverse lead screw (18), and a longitudinal lead screw (19); the lower slide plate (12) is slidably mounted on the mounting bracket (1) via the quenching bracket (11) and a slide rail; the upper slide block (13) is slidably mounted on the lower slide plate (12) via a slide rail; the lifting slide plate (15) is slidably mounted on the upper slide block (13) via an adjusting cylinder (14) and a slide rail; A laser quenching head (16) is mounted on the lower slide plate (15); a transverse screw (18) is mounted on the quenching bracket (11) on one side of the lower slide plate (12) via a screw motor (17); the transverse screw (18) is connected to the lower slide plate (12); a longitudinal screw (19) is mounted on the lower slide plate (12) on one side of the upper slide block (13); the longitudinal screw (19) is connected to the upper slide block (13); a control handwheel (20) is mounted on one end of the longitudinal screw (19).

3. The laser hardening device for an automotive steering gear housing according to claim 1, characterized in that: The clamping assembly (4) includes a pneumatic chuck (21), a mounting bracket (22), and a rotating shaft (23); the bottom end of the indexing plate (3) is fitted with a rotating shaft (23) via the mounting bracket (22) and a bearing; the upper end of the rotating shaft (23) extends above the indexing plate (3) and is fitted with a pneumatic chuck (21); the lower end of the rotating shaft (23) is provided with a snap-fit ​​gear ring (24).

4. The laser hardening device for an automotive steering gear housing according to claim 3, characterized in that: Both drive assembly A (6) and drive assembly B (10) include a lifting cylinder (30), a vertical guide rod (25), a lifting plate (26), a drive motor (27), and a drive shaft (28); the lifting plate (26) is slidably mounted on the mounting frame (1) via multiple vertical guide rods (25); the drive shaft (28) is mounted on the lifting plate (26) via the drive motor (27); the upper end of the drive shaft (28) is provided with a snap-fit ​​groove (29); the snap-fit ​​groove (29) is intermittently snap-fit ​​connected to the snap-fit ​​gear ring (24); the lifting cylinder (30) is mounted on the mounting frame (1) below the lifting plate (26); the lifting cylinder (30) is connected to the lifting plate (26).

5. The laser hardening device for an automotive steering gear housing according to claim 1, characterized in that: The transport robot (5) includes a transverse slide (32), a lifting cylinder (35), a clamping cylinder (36), a control motor (33), and a transverse rack (34); the transverse slide (32) is slidably mounted on the mounting frame (1) via a support truss (31) and a guide rail; the transverse slide (32) is equipped with a drive gear via the control motor (33); the drive gear is meshed with the transverse rack (34) mounted on the support truss (31); the transverse slide (32) is equipped with a clamping cylinder (36) via the lifting cylinder (35).

6. The laser hardening device for an automotive steering gear housing according to claim 1, characterized in that: The mounting frame (1) is equipped with a conveyor belt (37) on one side.

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