A kind of automobile steering gear gear shaft subassembly assembly device

Abstract

The present application relates to a kind of automobile steering gear gear shaft subassembly assembly device, belong to automobile steering gear assembly equipment technical field.The automobile steering gear gear shaft subassembly assembly device, including frame, index turntable, clamping seat, gear shaft assembly device, adjusting screw plug assembly device, dust seal assembly device and waste grabbing assembly;The frame is equipped with multiple clamping seats by index turntable;The middle part of index turntable is provided with waste hole;Waste hole top frame is equipped with waste grabbing assembly;The frame around index turntable is sequentially provided with gear shaft assembly device, adjusting screw plug assembly device and dust seal assembly device.The automobile steering gear gear shaft subassembly assembly device, compact structure, ingenious design, solve the existing automobile steering gear gear shaft subassembly assembly mode existing lacks the problem of oiling process and high scrap rate, especially suitable for the needs of automobile steering gear gear shaft subassembly assembly use.

Description

Technical Field

[0001] This invention relates to an assembly device for a sub-assembly of a car steering gear shaft, belonging to the technical field of car steering gear assembly equipment. Background Technology

[0002] In the field of automotive steering gear shaft sub-assembly assembly, it is necessary to complete the riveting of the gear shaft and the assembly of dust seals and adjusting plugs. Traditionally, gear shaft sub-assembly is done manually, resulting in low assembly efficiency. To address this issue, there are currently mechanized assembly methods for gear shaft sub-assemblies. Existing assembly devices for gear shaft sub-assemblies, such as the steering gear shaft assembly machine tool disclosed in utility model patent CN205733783U, while capable of assembling the gear shaft sub-assembly to a certain extent, cannot perform the lubrication of the dust seals. Furthermore, existing press-fitting devices can only press the dust seals into the exact correct position; even a slight misalignment results in a defective product, leading to a high scrap rate. Therefore, it is necessary to develop a new assembly device to solve the above-mentioned problems of existing automotive steering gear shaft sub-assembly methods. Summary of the Invention

[0003] The purpose of this invention is to provide an automotive steering gear shaft assembly device that is compact in structure and ingenious in design, thereby solving the problems of lack of lubrication process and high scrap rate in existing automotive steering gear shaft sub-assembly methods.

[0004] The technical solution of this invention is:

[0005] An assembly device for a sub-assembly of a steering gear shaft in an automobile includes a frame, an indexing turntable, clamping seats, a gear shaft assembler, an adjusting screw plug assembler, a dust seal assembler, and a scrap material gripping assembly. The device is characterized in that: multiple clamping seats are mounted on the frame via the indexing turntable; a scrap material hole is provided in the center of the indexing turntable; a scrap material gripping assembly is mounted on the frame above the scrap material hole; the gear shaft assembler, adjusting screw plug assembler, and dust seal assembler are sequentially arranged on the frame around the indexing turntable; the gear shaft assembler, adjusting screw plug assembler, and dust seal assembler correspond to the clamping seats on the indexing turntable; and support columns are mounted on the frame below the indexing turntable corresponding to the gear shaft assembler and dust seal assembler.

[0006] The clamping seat includes a floating plate, a support spring, a guide shaft, a base plate, a pressure transmission cylinder, a positioning sleeve, and a positioning step shaft; the floating plate is slidably mounted on the indexing turntable via the base plate and the guide shaft; a support spring is fitted on the guide shaft below the floating plate; positioning sleeves and positioning step shafts are installed at intervals on the upper end face of the floating plate; a pressure transmission cylinder is provided on the lower end face of the floating plate.

[0007] The waste gripping assembly includes a lifting cylinder, a rotating cylinder, a transverse cylinder, and waste grippers; the rotating cylinder is mounted on the frame via the lifting cylinder; and the waste grippers are mounted on the rotating cylinder via the transverse cylinder.

[0008] The gear shaft assembler includes a plate chain feeder, a riveting cylinder, a riveting head, a gear shaft take-up assembly, and a gear shaft feeding assembly; the plate chain feeder is installed on one side of the frame; the gear shaft take-up assembly and the gear shaft feeding assembly are mounted on the frame between the plate chain feeder and the indexing turntable; a lifting seat is mounted on the frame above the indexing turntable on one side of the gear shaft feeding assembly via a riveting cylinder, a pressure sensor, and a displacement sensor; a riveting head is mounted on the lifting seat via an assembly ring.

[0009] The aforementioned press-fit head has a T-shaped loop structure; the upper end of the press-fit head has a spherical arc surface structure; the center of the press-fit head is provided with a clearance countersunk hole; the lower end of the clearance countersunk hole is provided with a press-fit ring; the stepped surface of the press-fit head is movably snapped into connection with the assembly ring.

[0010] The gear shaft material handling assembly includes a transverse slide, a lifting seat, a swing cylinder, a swing plate, and gripping claws; the transverse slide is mounted on the frame via a control device; the swing cylinder is mounted on the transverse slide via the lifting seat; and the gripping claws are mounted on the swing cylinder via the swing plate.

[0011] The gear shaft feeding assembly includes a storage tray, feeding grippers, and an assembly bracket; a rotary cylinder is mounted on the frame via the assembly bracket and a lifting cylinder; a storage tray is mounted on the rotary cylinder; two sets of limit sleeves are installed at intervals on the storage tray; and feeding grippers are mounted on the frame on one side of the storage tray via a lifting cylinder, a rotary cylinder, and a pushing cylinder.

[0012] The adjusting screw plug assembler includes an adjusting screw plug storage assembly and an adjusting screw plug gripping assembly; the adjusting screw plug storage assembly and the adjusting screw plug gripping assembly are mounted on the frame on one side of the indexing turntable; the adjusting screw plug storage assembly includes a storage indexing plate, a storage rod, a lifting seat, a lifting claw, and a pushing cylinder; multiple storage rods are evenly installed on the frame via an indexing motor and an indexing plate; a lifting seat is mounted on one side of the storage rod via a bracket and a lead screw; a lifting claw is mounted on the lifting seat via a pushing cylinder.

[0013] The adjusting screw gripping assembly includes an assembly frame, a transverse slide, a lifting cylinder, and an inner chuck; the transverse slide is mounted on the frame on one side of the indexing turntable via the assembly frame and a rodless cylinder; the inner chuck is mounted on the transverse slide via the lifting cylinder.

[0014] The dust ring assembler includes a dust ring pressing assembly, a vibrating feeding plate, a waste bin, a positioning V-block, and a rotating plate. The positioning V-block is mounted on the frame. A vibrating feeding plate is mounted on one side of the positioning V-block. A lifting cylinder connects the vibrating feeding plate and the positioning V-block with an isolation plate. A waste bin is mounted on one side of the frame. A lifting cylinder connects the waste bin and the positioning V-block with a rotating cylinder. A rotating plate is mounted on the rotating cylinder. A material-retrieving gripper is mounted on the rotating plate. A waste-holding gripper A is mounted on one side of the rotating plate. A waste-holding gripper B is mounted above waste-holding gripper A. The dust ring pressing assembly is mounted on the frame above the indexing turntable on one side of the rotating plate.

[0015] The dustproof ring press-fit assembly includes a press-fit cylinder and a press-fit head; a lifting seat is mounted on the press-fit cylinder via an assembly ring; a press-fit head is mounted on the lifting seat via a pressure sensor and a displacement sensor; the end of the press-fit head has a stepped structure; a central through hole is provided in the center of the press-fit head; the central through hole is connected to the outer circumferential surface of the press-fit head via an oil injection hole.

[0016] The advantages of this invention are:

[0017] This automotive steering gear shaft sub-assembly assembly device is compact in structure and ingenious in design. It solves the problems of lack of lubrication process and high scrap rate in the existing automotive steering gear shaft sub-assembly methods, and is particularly suitable for the needs of automotive steering gear shaft sub-assembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the isometric structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the isometric structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the isometric structure of the present invention;

[0021] Figure 4 This is a top view of the structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the frame and indexing turntable of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the clamping base of the present invention;

[0024] Figure 7 for Figure 1Enlarged structural diagram at point A;

[0025] Figure 8 A schematic diagram of the gear shaft material handling assembly;

[0026] Figure 9 This is a schematic diagram of the gear shaft feeding assembly.

[0027] Figure 10 This is a schematic diagram of the riveting cylinder and riveting head of the present invention;

[0028] Figure 11 This is a schematic diagram of the structure of the waste grabbing component of the present invention;

[0029] Figure 12 for Figure 10 A schematic diagram of the cross-sectional structure;

[0030] Figure 13 for Figure 12 Enlarged structural diagram at point B;

[0031] Figure 14 This is a schematic diagram of the structure of the adjusting screw plug storage assembly of the present invention;

[0032] Figure 15 This is a schematic diagram of the structure of the adjusting screw gripping assembly of the present invention;

[0033] Figure 16 This is a schematic diagram of the structure of the dustproof ring feeding assembly of the present invention;

[0034] Figure 17 for Figure 16 Enlarged structural diagram at point C;

[0035] Figure 18 This is a schematic diagram of the structure of the dustproof ring press-fit assembly of the present invention;

[0036] Figure 19 For the present invention Figure 18 Enlarged structural diagram at point D;

[0037] Figure 20 This is a cross-sectional structural diagram of the press-fit head of the present invention;

[0038] Figure 21 This is a schematic diagram of the workpiece structure;

[0039] Figure 22 This is a schematic diagram of the cross-sectional structure of the workpiece;

[0040] Figure 23 This is a schematic diagram of the cross-sectional structure of the clamping seat.

[0041] In the diagram: 1. Frame; 2. Indexing turntable; 3. Clamping seat; 4. Scrap hole; 5. Scrap gripping assembly; 6. Gear shaft assembler; 7. Adjusting plug assembler; 8. Dustproof ring assembler; 9. Base plate; 10. Guide shaft; 11. Floating plate; 12. Support spring; 13. Positioning sleeve; 14. Positioning stepped shaft; 15. Pressure transmission cylinder; 16. Oil injection hole; 17. Rotary cylinder; 18. Lateral cylinder; 19. Scrap gripper; 20. Plate chain feeder; 21. Gear shaft picking assembly; 22. Gear shaft feeding assembly; 23. Riveting cylinder; 24. Lifting seat; 25. Assembly ring; 26. Riveting head; 27. Clearance countersunk hole; 28. Riveting ring; 29. ​​Lateral slide; 30. Swing cylinder; 31. Clamping gripper; 32. Assembly... 33. Support bracket; 34. Lifting cylinder; 35. Dustproof ring pressing assembly; 36. Storage tray; 37. Limit sleeve; 38. Lifting cylinder; 39. Pressing head; 40. Pushing cylinder; 41. Feeding gripper; 42. Adjusting screw plug storage assembly; 43. Adjusting screw plug gripping assembly; 44. Indexing motor; 45. Indexing plate; 46. Storage rod; 47. Pressing cylinder; 48. Rotating plate; 49. Lifting gripper; 50. Assembly frame; 51. Rodless cylinder; 52. Scrap gripper B; 53. Picking gripper; 54. Internal clamping gripper; 55. Positioning V-block; 56. Vibrating feeding tray; 57. Scrap gripper A; 58. Isolation plate; 59. Scrap box; 60. Lifting cylinder; 61. Center through hole; 62. Gear shaft; 63. Adjusting screw plug. Detailed Implementation

[0042] This automotive steering gear shaft sub-assembly assembly device includes a frame 1, an indexing turntable 2, a clamping seat 3, a gear shaft assembler 6, an adjusting plug assembler 7, a dust seal assembler 8, and a waste material gripping assembly 5 (see the attached instruction manual). Figure 1 , 2 and 3).

[0043] The frame 1 is equipped with multiple clamping seats 3 via an indexing turntable 2; the indexing turntable 2 is an externally purchased device, which can rotate intermittently at a specified angle during operation.

[0044] The clamping base 3 includes a floating plate 11, a support spring 12, a guide shaft 10, a base plate 9, a pressure transmission cylinder 15, a positioning sleeve 13, and a positioning stepped shaft 14 (see the instruction manual appendix). Figure 5 and 6 A floating plate 11 is slidably mounted on the indexing turntable 2 via a base plate 9 and a guide shaft 10; a support spring 12 is fitted onto the guide shaft 10 below the floating plate 11. Positioning sleeves 13 and positioning stepped shafts 14 are installed at intervals on the upper end face of the floating plate 11; a pressure transmission cylinder 15 is provided on the lower end face of the floating plate 11 (see the instruction manual appendix). Figure 5 and 6During operation, the gear shaft 61 and its auxiliary components can be installed on the positioning sleeve 13 by insertion. The adjusting screw plug 62 can be fitted onto the positioning stepped shaft 14. When the gear shaft 61 and the adjusting screw plug 62 are pressed during operation, they can overcome the elastic force of the support spring 12 and press the floating plate 11 downward. Thus, during the pressing and riveting of the gear shaft 61 and the pressing of the adjusting screw plug 62, the floating plate 11 can drive the pressure transmission cylinder 15 downward and finally contact the support column (not shown in the attached drawing of the instruction manual) below the indexing turntable 2. The support column provides the support force, thereby avoiding the problem of deformation and damage when the indexing turntable 2 provides the support force.

[0045] A waste material hole 4 is provided in the middle of the indexing turntable 2; a waste material gripping assembly 5 is mounted on the frame 1 at the top of the waste material hole 4 (see the instruction manual). Figure 1 The waste gripping assembly 5 includes a lifting cylinder 33, a rotating cylinder 17, a transverse cylinder 18, and a waste gripper 19 (see the attached instruction manual). Figure 11 A rotary cylinder 17 is mounted on the frame 1 via a lifting cylinder 33; a waste gripper 19 is mounted on the rotary cylinder 17 via a transverse cylinder 18 (see the instruction manual appendix). Figure 11 During operation, with the cooperation of the lifting cylinder 33, the rotating cylinder 17 and the transverse cylinder 18, the waste gripper 19 can pick up the unqualified riveted gear shaft 61 from the clamping seat 3 and throw it out from the waste hole 4 in the center of the indexing turntable 2, thereby completing the recycling of the unqualified gear shaft 61.

[0046] Gear shaft assemblers 6 are mounted on the frame 1 around the indexing turntable 2 (see instruction manual appendix). Figure 1 , 2 And 3). The gear shaft assembler 6 includes a plate chain feeder 20, a riveting cylinder 23, a riveting head 26, a gear shaft material handling assembly 21, and a gear shaft feeding assembly 22 (see the attached instruction manual). Figure 7 ).

[0047] A plate chain feeder 20 is installed on one side of the frame 1 (see the instruction manual appendix). Figure 1 and 7 The plate chain feeder 20 is an externally purchased device; the frame 1 between the plate chain feeder 20 and the indexing turntable 2 is equipped with a gear shaft material handling assembly 21 and a gear shaft feeding assembly 22 (see the instruction manual appendix). Figure 7 ).

[0048] The gear shaft material handling assembly 21 includes a transverse slide 29, a lifting seat 24, a swing cylinder 30, a swing plate, and a gripping jaw 31 (see the instruction manual appendix). Figure 8 A transverse slide 29 is mounted on the frame 1 via a control device; a swing cylinder 30 is mounted on the transverse slide 29 via a lifting seat 24; a gripper 31 is mounted on the swing cylinder 30 via a swing plate (see instruction manual appendix). Figure 8 ).

[0049] During operation, the gripper 31, in cooperation with the transverse slide 29, the lifting seat 24 and the swing cylinder 30, can grab the gear shaft 61 from the plate chain feeder 20 and place it on the storage tray 35.

[0050] The gear shaft feeding assembly 22 includes a storage tray 35, a feeding gripper 40, and an assembly bracket 32 ​​(see the instruction manual appendix). Figure 9 A rotary cylinder 17 is mounted on the frame 1 via a mounting bracket 32 ​​and a lifting cylinder 33; a storage tray 35 is mounted on the rotary cylinder 17; two sets of limit sleeves 36 are installed at intervals on the storage tray 35. During operation, the rotary cylinder 17 can drive the storage tray 35 to rotate.

[0051] On the frame 1 on one side of the storage tray 35, there is a feeding gripper 40 via a lifting cylinder 37, a rotating cylinder 17, and a pushing cylinder 39. During operation, the feeding gripper 40 can grab the gear shaft 61 from the limiting sleeve 36 and transfer it to the positioning sleeve 13 of the clamping seat 3.

[0052] On the frame 1 above the indexing turntable 2 on one side of the gear shaft feeding assembly 22, a lifting seat 24 is mounted via a riveting cylinder 23, a pressure sensor, and a displacement sensor; a riveting head 26 is mounted on the lifting seat 24 via an assembly ring 25 (see the instruction manual appendix). Figure 10 , 12 and 13).

[0053] The rivet head 26 has a T-shaped loop structure; the upper end of the rivet head 26 has a spherical arc surface structure; a clearance countersunk hole 27 is provided in the center of the rivet head 26; a rivet ring 28 is provided at the lower end of the clearance countersunk hole 27; the stepped surface of the rivet head 26 is movably engaged with the assembly ring 25 (see the instruction manual appendix). Figure 12 and 13 ).

[0054] The purpose of designing the upper end of the riveting head 26 as a spherical arc surface structure is to ensure that during the riveting process, when the retaining ring on the gear shaft 61 is slightly deviated, the riveting head 26 will rotate slightly under the action of the spherical arc surface structure during the pressing process. This allows it to adapt to the riveting work when the retaining ring is slightly deviated, thereby avoiding the problem that the riveting head 26 can only rivet the retaining ring that is completely installed correctly when it cannot move.

[0055] An adjusting screw assembler 7 is installed on the frame 1 on one side of the gear shaft assembler 6 (see the instruction manual appendix). Figure 1 , 2 and 3).

[0056] The adjusting plug assembler 7 includes an adjusting plug storage assembly 41 and an adjusting plug gripping assembly 42. The adjusting plug storage assembly 41 and the adjusting plug gripping assembly 42 are mounted on the frame 1 on one side of the indexing turntable 2 (see the attached instruction manual). Figure 14 and15 ).

[0057] The adjusting screw plug storage assembly 41 includes a storage indexing plate 44, a storage rod 45, a lifting seat 24, a lifting claw 48, and a pusher cylinder 39 (see the instruction manual appendix). Figure 14 Multiple storage rods 45 are evenly mounted on the frame 1 via an indexing motor 43 and an indexing plate 44. During operation, the adjusting plugs 62 to be assembled can be stacked on the storage rods 45 (see the instruction manual appendix). Figure 14 ).

[0058] A lifting seat 24 is mounted on one side of the storage rod 45 via a bracket and a lead screw; a lifting claw 48 is mounted on the lifting seat 24 via a push cylinder 39. During operation, the lifting claw 48, in cooperation with the lifting seat 24 and the push cylinder 39, can push the adjusting screw 62 to move upward along the storage rod 45.

[0059] The adjusting screw gripper assembly 42 includes an assembly frame 49, a transverse slide 29, a lifting cylinder 33, and an inner chuck 53 (see the instruction manual appendix). Figure 15 On one side of the indexing turntable 2, a transverse slide 29 is mounted on the frame 1 via an assembly frame 49 and a rodless cylinder 50; an inner chuck 53 is mounted on the transverse slide 29 via a lifting cylinder 33 (see the instruction manual appendix). Figure 15 During operation, the inner chuck 53, in cooperation with the lifting cylinder 33 and the transverse slide 29, will grab the adjusting screw 62 from the adjusting screw storage assembly 41 and transfer it to the positioning step shaft 14 of the corresponding clamping seat 3.

[0060] A dust ring assembler 8 is installed on the frame 1 on one side of the adjusting screw assembler 7 (see the instruction manual appendix). Figure 1 , 2 And 3). The dust ring assembler 8 includes a dust ring pressing assembly 34, a vibrating feed plate 55, a waste bin 58, a positioning V-block 54, and a rotating plate 47 (see the instruction manual appendix). Figure 16 and 17 ).

[0061] A positioning V-block 54 is mounted on the frame 1; a vibrating feeding plate 55 is mounted on one side of the positioning V-block 54; a partition plate 57 is installed between the vibrating feeding plate 55 and the positioning V-block 54 via a lifting cylinder 37. A waste bin 58 is mounted on one side of the frame 1 of the positioning V-block 54; a rotating cylinder 17 is installed between the waste bin 58 and the positioning V-block 54 via a lifting cylinder 59; a rotating plate 47 is mounted on the rotating cylinder 17; a material-picking gripper 52 is mounted on the rotating plate 47; a waste-holding gripper A56 is mounted on the rotating plate 47 on one side of the material-holding gripper 52; a waste-holding gripper B51 is mounted above the waste-holding gripper A56 (see the instruction manual appendix). Figure 16 and 17 ).

[0062] During operation, the vibrating feeder 55 delivers a set of dustproof rings to the positioning V-block 54. Then, the isolation plate 57, in conjunction with the lifting cylinder 37, moves upward, preventing the subsequent adjusting screw plug 62 from entering the positioning V-block 54. After the dustproof rings enter the positioning V-block 54, the material handling gripper 52, in conjunction with the rotating plate 47 and the lifting cylinder 59, clamps the dustproof rings and places them on the adjusting screw plug 62 of the corresponding clamping seat 3's positioning stepped shaft 14.

[0063] If the dust cover ring is installed incorrectly, the scrap clamping claw A56 will grab the dust cover ring with the cooperation of the rotating plate 47 and the lifting cylinder 59; the scrap clamping claw B51 will grab the adjusting screw plug 62 and finally grab the dust cover ring and the adjusting screw plug 62 and place them into the scrap bin 58.

[0064] A dust ring pressing assembly 34 is mounted on the frame 1 above the indexing turntable 2 on one side of the rotating plate 47. The dust ring pressing assembly 34 includes a pressing cylinder 46 and a pressing head 38; a lifting seat 24 is mounted on the pressing cylinder 46 via an assembly ring 25 (see the instruction manual appendix). Figure 19 The piston rod of the pressing cylinder 46 has an arc-shaped end, which is movably connected to the assembly ring 25. This design aims to ensure that during the pressing process, when the dust ring is slightly misaligned, the pressing head 38, under the action of the spherical arc surface structure, will slightly rotate with the lifting seat 24. This adapts to the slight misalignment of the dust ring during pressing, thus avoiding the problem that the pressing head 38 can only press on correctly installed dust rings when it cannot move.

[0065] The lifting seat 24 is equipped with a pressing head 38 via a pressure sensor and a displacement sensor; the end of the pressing head 38 has a stepped structure; a central through hole 60 is provided in the center of the pressing head 38; the central through hole 60 is connected to the outer circumferential surface of the pressing head 38 through an oil injection hole 16 (see the instruction manual appendix). Figure 18 , 19 (and 20). After the press-fit head 38 is pressed into the inside of the dustproof ring, the external oil injection device can inject oil into the inside of the dustproof ring through the central through hole 60 and the oil injection hole 16.

[0066] The gear shaft assembler 6, the adjusting screw plug assembler 7, and the dust seal assembler 8 correspond to the clamping seat 3 on the indexing turntable 2; the frame 1 below the indexing turntable 2 corresponding to the gear shaft assembler 6 and the dust seal assembler 8 is equipped with a support column.

[0067] When the automotive steering gear shaft sub-assembly assembly device is in operation, the gear shaft picking assembly 21 first picks up the gear shaft 61 from the plate chain feeder 20 and places it on the storage tray 35.

[0068] Then, the rotary cylinder 17 drives the storage tray 35 to rotate 180°, so that it corresponds to the feeding claw 40 on the gear shaft feeding assembly 22; then the feeding claw 40 of the feeding assembly 22 picks up the gear shaft 61 from the storage tray 35 and places it on the positioning sleeve 13 of the clamping seat 3 of the corresponding indexing turntable 2. Then the gear shaft feeding assembly 22 is reset.

[0069] After the gear shaft 61 is placed on the positioning sleeve 13, the riveting cylinder 23 completes the riveting of the retaining ring on the gear shaft 61 by pressing down the riveting head 26 through the lifting seat 24, and then resets. During this process, the pressure sensor and displacement sensor connected to the riveting cylinder 23 will record the pressure and displacement of the riveting cylinder 23 during the pressing process. If they are within the normal range, the assembly device will continue to the next step. If they are not within the normal range, the waste grabbing component 5 will grab the defective gear shaft 61, throw it out from the waste hole 4 on the indexing turntable 2, and then reset. In this way, the recycling of the defective gear shaft 61 can be completed.

[0070] After the above work is completed, the indexing turntable 2 rotates one position, causing the clamping seat 3, which is equipped with the riveted gear shaft 61, to rotate to correspond with the adjusting screw plug assembler 7. Then, the adjusting screw plug gripping component 42 of the adjusting screw plug assembler 7 grips an adjusting screw plug 62 from the storage rod 45 of the adjusting screw plug storage component 41 and places it on the positioning step shaft 14 of the corresponding clamping seat 3 before resetting.

[0071] After the adjusting plug 62 is placed on the clamping seat 3, the indexing turntable 2 rotates one position, causing the clamping seat 3, which contains the gear shaft 61 and the adjusting plug 62, to rotate to correspond with the dust ring assembler 8. At this time, the vibrating feeding plate 55 of the dust ring assembler 8 conveys a set of dust rings to the positioning V-block 54. Then, the isolation plate 57 moves upward with the cooperation of the lifting cylinder 37, preventing subsequent adjusting plugs 62 from entering the positioning V-block 54. After the dust ring enters the positioning V-block 54, the picking jaws 52, with the cooperation of the rotating plate 47 and the lifting cylinder 59, clamp the dust ring and place it on the adjusting plug 62 of the positioning stepped shaft 14 of the corresponding clamping seat 3.

[0072] After the dustproof ring is placed on the corresponding adjusting plug 62, the pressing cylinder 46 will drive the pressing head 38 to move down and press the dustproof ring onto the corresponding adjusting plug 62. During this process, an external oil injection device can inject oil into the dustproof ring through the central through hole 60 and oil injection hole 16 of the pressing head 38. At the same time, the pressure sensor and displacement sensor connected to the pressing cylinder 46 will record the force and displacement of the pressing head 38. When the force and displacement are within the acceptable range, the assembly device can proceed to the next station; when the force and displacement are not within the acceptable range, i.e., the dustproof ring pressing fails, the scrap gripper A56 will grab the dustproof ring with the cooperation of the rotating plate 47 and the lifting cylinder 59; the scrap gripper B51 will grab the adjusting plug 62 and finally place the dustproof ring and adjusting plug 62 into the scrap box 58. In this way, the recycling of the failed dustproof ring and adjusting plug 62 can be completed.

[0073] After the above work is completed, the indexing turntable 2 rotates one station. Then, the riveted gear shaft 61 and the press-fitted adjusting screw 62 are manually removed and installed on the automotive steering gear shaft sub-assembly. At this point, the automotive steering gear shaft sub-assembly assembly device has completed the riveting of the gear shaft 61 and the press-fitting of the adjusting screw 62, and the gear shaft sub-assembly assembly device can enter the next work cycle.

[0074] This automotive steering gear shaft sub-assembly assembly device is compact in structure and ingenious in design. It solves the problems of lack of lubrication process and high scrap rate in the existing automotive steering gear shaft sub-assembly methods, and is particularly suitable for the needs of automotive steering gear shaft sub-assembly.

Claims

1. An assembly device for a sub-assembly of a steering gear shaft in an automobile, comprising a frame (1), an indexing turntable (2), a clamping seat (3), a gear shaft assembler (6), an adjusting screw assembler (7), a dust seal assembler (8), and a waste material gripping assembly (5); characterized in that: The frame (1) is equipped with multiple clamping seats (3) via an indexing turntable (2); a waste hole (4) is provided in the middle of the indexing turntable (2); a waste gripping component (5) is installed on the frame (1) at the top of the waste hole (4); a gear shaft assembler (6), an adjusting screw plug assembler (7), and a dustproof ring assembler (8) are sequentially arranged on the frame (1) around the indexing turntable (2); the gear shaft assembler (6), the adjusting screw plug assembler (7), and the dustproof ring assembler (8) correspond to the clamping seats (3) on the indexing turntable (2); a support column is installed on the frame (1) below the indexing turntable (2) corresponding to the gear shaft assembler (6) and the dustproof ring assembler (8); The gear shaft assembler (6) includes a plate chain feeder (20), a riveting cylinder (23), a riveting head (26), a gear shaft material handling assembly (21), and a gear shaft feeding assembly (22); a plate chain feeder (20) is provided on one side of the frame (1); the gear shaft material handling assembly (21) and the gear shaft feeding assembly (22) are mounted on the frame (1) between the plate chain feeder (20) and the indexing turntable (2); a lifting seat (24) is mounted on the frame (1) above the indexing turntable (2) on one side of the gear shaft feeding assembly (22) via the riveting cylinder (23), a pressure sensor, and a displacement sensor; a riveting head (26) is mounted on the lifting seat (24) via an assembly ring (25); The press head (26) has a T-shaped loop structure; the upper end of the press head (26) has a spherical arc surface structure; the center of the press head (26) is provided with a clearance countersunk hole (27); the lower end of the clearance countersunk hole (27) is provided with a press ring (28); the stepped surface of the press head (26) is movably snapped into connection with the assembly ring (25); The gear shaft feeding assembly (22) includes a storage tray (35), feeding grippers (40), and an assembly bracket (32); a rotary cylinder (17) is mounted on the frame (1) via the assembly bracket (32) and a lifting cylinder (33); a storage tray (35) is mounted on the rotary cylinder (17); two sets of limit sleeves (36) are installed at intervals on the storage tray (35); a feeding gripper (40) is mounted on the frame (1) on one side of the storage tray (35) via a lifting cylinder (37), a rotary cylinder (17), and a pushing cylinder (39); The dust ring assembler (8) includes a dust ring pressing assembly (34), a vibrating feed plate (55), a waste bin (58), a positioning V-block (54), and a rotating plate (47); the positioning V-block (54) is mounted on the frame (1); the vibrating feed plate (55) is mounted on one side of the positioning V-block (54); a partition plate (57) is installed between the vibrating feed plate (55) and the positioning V-block (54) through a lifting cylinder (37); a waste bin (58) is mounted on one side of the frame (1) of the positioning V-block (54); A rotating cylinder (17) is installed between the material bin (58) and the positioning V-block (54) via a lifting cylinder (59); a rotating plate (47) is installed on the rotating cylinder (17); a material picking claw (52) is installed on the rotating plate (47); a waste material holding claw A (56) is installed on the rotating plate (47) on one side of the material picking claw (52); a waste material holding claw B (51) is installed above the waste material holding claw A (56); a dustproof ring pressing assembly (34) is installed on the frame (1) above the indexing turntable (2) on one side of the rotating plate (47). The dustproof ring press assembly (34) includes a press cylinder (46) and a press head (38); the press cylinder (46) is equipped with a lifting seat (24) via an assembly ring (25); the lifting seat (24) is equipped with a press head (38) via a pressure sensor and a displacement sensor; the end of the press head (38) has a stepped structure; the center of the press head (38) is provided with a central through hole (60); the central through hole (60) is connected to the outer circumferential surface of the press head (38) via an oil injection hole (16).

2. The automotive steering gear shaft sub-assembly assembly device according to claim 1, characterized in that: The clamping seat (3) includes a floating plate (11), a support spring (12), a guide shaft (10), a base plate (9), a pressure transmission cylinder (15), a positioning sleeve (13), and a positioning step shaft (14); the floating plate (11) is slidably mounted on the indexing turntable (2) through the base plate (9) and the guide shaft (10); the support spring (12) is fitted on the guide shaft (10) below the floating plate (11); the positioning sleeve (13) and the positioning step shaft (14) are installed at intervals on the upper end face of the floating plate (11); the pressure transmission cylinder (15) is provided on the lower end face of the floating plate (11).

3. The automotive steering gear shaft sub-assembly assembly device according to claim 1, characterized in that: The waste gripping assembly (5) includes a lifting cylinder (33), a rotating cylinder (17), a transverse cylinder (18), and a waste gripper (19); the frame (1) is equipped with a rotating cylinder (17) via the lifting cylinder (33); the rotating cylinder (17) is equipped with a waste gripper (19) via the transverse cylinder (18).

4. The automotive steering gear shaft sub-assembly assembly device according to claim 3, characterized in that: The gear shaft material handling assembly (21) includes a transverse slide (29), a lifting seat (24), a swing cylinder (30), a swing plate, and a gripper (31); the frame (1) is equipped with a transverse slide (29) via a control device; the transverse slide (29) is equipped with a swing cylinder (30) via the lifting seat (24); the swing cylinder (30) is equipped with a gripper (31) via the swing plate.

5. The automotive steering gear shaft sub-assembly assembly device according to claim 1, characterized in that: The adjusting screw assembler (7) includes an adjusting screw storage assembly (41) and an adjusting screw gripping assembly (42); the adjusting screw storage assembly (41) and the adjusting screw gripping assembly (42) are mounted on the frame (1) on one side of the indexing turntable (2); the adjusting screw storage assembly (41) includes a storage indexing plate (44), a storage rod (45), a lifting seat (24), a lifting claw (48) and a push cylinder (39); multiple storage rods (45) are evenly installed on the frame (1) through the indexing motor (43) and the storage indexing plate (44); a lifting seat (24) is mounted on one side of the storage rod (45) through a bracket and a lead screw; a lifting claw (48) is mounted on the lifting seat (24) through the push cylinder (39).

Images