Wheel rim multi-station synchronous clamping structure

Abstract

The utility model relates to the technical field of clamping structures, and discloses a wheel rim multi-station synchronous clamping structure which comprises a bottom plate, a gear ring is rotatably connected to the middle of the bottom end of the bottom plate, threads are fixedly connected to the top end of the gear ring, a fixing plate is fixedly connected to one side of the bottom end of the bottom plate, and a motor is fixedly connected to one side of the fixing plate. The driving end of the motor penetrates through the fixing plate to be fixedly connected with a gear, one side of the gear is connected to the bottom end of the gear ring in a meshed mode, a plurality of evenly-distributed open grooves are formed in the top end of the bottom plate, the open grooves are annularly distributed around the center point of the bottom plate, and push rods are slidably connected into the open grooves. According to the rim clamping structure, the push rod slides in the open groove so as to push the clamping head to move in the opposite direction to clamp a rim, the rim can extrude the sleeve to rotate when the clamping head moves, and therefore the pressing block is driven to rotate downwards to clamp the rim, and in this way, the clamping force of the clamping structure can be increased; and the rim is prevented from rotating due to vibration.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping structures, and particularly relates to a multi-station synchronous clamping structure for a wheel rim. Background Art

[0002] A wheel rim is an important part of a wheel, usually referring to the outer edge part of the wheel. It is mainly used for installing tires and undertakes the functions of bearing the vehicle body weight, transmitting power and braking force, and keeping the tire running stably when the vehicle is driving. During the production and processing of the wheel rim, a multi-station synchronous clamping structure is needed to fix the wheel rim.

[0003] The multi-station synchronous clamping structure is a commonly used technology in machining and automation equipment. For example, during the production and processing of the wheel rim, it is necessary to grind the surface of the wheel rim to improve the surface finish and accuracy. When grinding, the wheel rim needs to be placed on the multi-station synchronous clamping structure to clamp and fix the wheel rim, so as to facilitate the staff to grind the wheel rim.

[0004] When the multi-station synchronous clamping structure fixes the wheel rim, it usually clamps the side wall of the wheel rim. However, when grinding the wheel rim, the wheel rim often rotates slightly on the multi-station synchronous clamping structure due to the vibration of the grinding machine, thus affecting the processing effect of the wheel rim. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a multi-station synchronous clamping structure for a wheel rim, aiming to improve the problem that when grinding the wheel rim in the prior art, the wheel rim often rotates slightly on the multi-station synchronous clamping structure due to the vibration of the grinding machine, thus affecting the processing effect of the wheel rim.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A multi-station synchronous clamping structure for a wheel rim, comprising:

[0007] A bottom plate, with a slot opened at the top end of the bottom plate;

[0008] A push rod, slidably connected inside the slot, and a clamping head is fixedly connected to the top end for clamping the wheel rim:

[0009] Teeth, fixedly connected to the bottom end of the push rod;

[0010] A rotating shaft, rotatably connected inside the clamping head, and a sleeve is fixedly connected to one side;

[0011] A screw rod, threadedly connected inside the sleeve, and the top end of the screw rod is rotatably connected to a pressing block, and the pressing block is used for fixing the wheel rim.

[0012] As a further description of the above technical solution:

[0013] It further includes a fixing plate fixedly connected to one side of the bottom end of the bottom plate. One side of the fixing plate is fixedly connected with a motor, and the driving end of the motor penetrates through the fixing plate and is fixedly connected with a gear. One side of the gear is meshed and connected with a toothed ring.

[0014] As a further description of the above technical solution:

[0015] The toothed ring is rotatably connected to the bottom end of the bottom plate, and a thread is fixedly connected to the top end of the toothed ring. The thread is meshed and connected to the bottom end of the tooth, and the toothed ring is used to push the push rod to slide.

[0016] As a further description of the above technical solution:

[0017] A torsion spring is wound around the outer side of the rotating shaft, and the torsion spring is used to provide elastic force for the sleeve.

[0018] As a further description of the above technical solution:

[0019] A groove is provided on the inner side wall of the slot, and a convex block is slidably connected inside the groove. One end of the convex block is fixedly connected to one side of the push rod, and the convex block is used to limit the push rod.

[0020] As a further description of the above technical solution:

[0021] Rubber pads II are fixedly connected to one side of each clamping head, and rubber pads I are fixedly connected to one side of each sleeve.

[0022] The utility model has the following beneficial effects:

[0023] In the utility model, the motor is started to drive the gear to rotate the toothed ring, and the push rod is pushed to slide inside the slot, so as to push the clamping heads to move in opposite directions to clamp the rim. When the clamping heads move, the rim will squeeze the sleeve to rotate, so as to drive the pressing block to rotate downward to clamp the rim. By clamping the side and top of the rim simultaneously, the clamping force of the clamping structure can be increased, and the rim can be prevented from rotating due to vibration. Description of the Drawings

[0024] Figure 1 It is a three-dimensional view of a multi-station synchronous clamping structure for a wheel rim proposed by the utility model;

[0025] Figure 2 It is a cross-sectional view of the bottom plate of a multi-station synchronous clamping structure for a wheel rim proposed by the utility model;

[0026] Figure 3 It is a structural diagram of the toothed ring of a multi-station synchronous clamping structure for a wheel rim proposed by the utility model;

[0027] Figure 4Cross-sectional view of a clamping head of a multi-station synchronous clamping structure for a wheel rim proposed by the present utility model;

[0028] Figure 5 Side view of a multi-station synchronous clamping structure for a wheel rim proposed by the present utility model.

[0029] Legend description:

[0030] 1. Bottom plate; 2. Push rod; 3. Motor; 4. Screw; 5. Pressing block; 6. Clamping head; 7. Groove; 8. Thread; 9. Tooth ring; 10. Bump; 11. Gear; 12. Fixed plate; 13. Tooth; 14. Groove; 15. Torsion spring; 16. Rotating shaft; 17. Sleeve; 18. Rubber pad 1; 19. Rubber pad 2. Specific implementation mode

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0032] Refer to Figures 1-5 , an embodiment provided by the present utility model: a multi-station synchronous clamping structure for a wheel rim, including a bottom plate 1. The middle part of the bottom end of the bottom plate 1 is rotatably connected with a tooth ring 9. The top end of the tooth ring 9 is fixedly connected with a thread 8. One side of the bottom end of the bottom plate 1 is fixedly connected with a fixed plate 12. One side of the fixed plate 12 is fixedly connected with a motor 3. The driving end of the motor 3 penetrates through the fixed plate 12 and is fixedly connected with a gear 11. One side of the gear 11 is meshed and connected to the bottom end of the tooth ring 9. A plurality of uniformly distributed grooves 7 are opened at the top end of the bottom plate 1. The grooves 7 are uniformly distributed in a ring shape with the center point of the bottom plate 1 as the center. The uniformly distributed grooves 7 in a ring shape can enable the clamping head 6 and the pressing block 5 to evenly distribute the clamping pressure received by the wheel rim inside the wheel rim when clamping and fixing the wheel rim, reduce the deformation of the wheel rim during the processing, and maintain the geometric shape and dimensional accuracy of the wheel rim. A plurality of push rods 2 are slidably connected inside the plurality of grooves 7. The bottom ends of the plurality of push rods 2 are fixedly connected with a plurality of uniformly distributed teeth 13. The teeth 13 are meshed and connected to the top end of the thread 8. The top ends of the plurality of push rods 2 are fixedly connected with clamping heads 6. The plurality of clamping heads 6 are set to have a cavity inside. A rotating shaft 16 is rotatably connected inside each of the plurality of clamping heads 6. One side of the plurality of rotating shafts 16 is rotatably connected with a sleeve 17. A screw 4 is threadedly connected inside each of the plurality of sleeves 17. One end of each of the plurality of screws 4 is rotatably connected with a pressing block 5.

[0033] Place the rim on the top of the bottom plate 1, and then start the motor 3 to drive the gear 11 to rotate. The rotating gear 11 drives the toothed ring 9 to rotate. As the toothed ring 9 rotates, the thread 8 at the top of the toothed ring 9 can push the push rod 2 to slide inside the slot 7, thereby pushing the clamping head 6 to move in the opposite direction to clamp the rim. At the same time, when the clamping head 6 moves towards the rim, the rim will push the sleeve 17 to rotate inside the clamping head 6, thereby driving the pressing block 5 to rotate downward to clamp the rim. By fixing the rim on the side and top and bottom simultaneously, the stability of the rim during clamping can be increased, which helps to improve the processing accuracy, ensure the manufacturing quality of the wheel, reduce subsequent rework and adjustment. Through holes for fixing the bottom plate are provided on the bottom plate 1. When clamping the rim, bolts can be used to place multiple bottom plates 1 on the same workbench, pass the bolts through multiple through holes, and use the bolts to fix multiple bottom plates 1 to the top of the workbench, thereby forming multiple workstations for clamping the rim, so that multiple rims can be clamped simultaneously, enabling the staff to process multiple rims at the same time.

[0034] When it is necessary to clamp rims of different sizes, the distance between two opposite clamping heads 6 can be adjusted according to the diameter of the rim, and the screw rod 4 can be rotated to make the screw rod 4 extend or retract inside the sleeve 17, and then the height of the pressing block 5 can be adjusted according to the height of the rim so that the clamping structure can clamp rims of different sizes.

[0035] The rotating toothed ring 9 can push multiple push rods 2 to move inside the slot 7 at the same time, so that multiple clamping heads 6 can contact the rim at the same time to clamp the rim, thereby ensuring the stability of the rim and the accuracy of the rim position when the clamping structure clamps the rim. The multiple clamping heads 6 act simultaneously, which can avoid the workpiece position deviation caused by different clamping sequences.

[0036] Grooves 14 are provided on the inner side walls of multiple slots 7, and bumps 10 are slidably connected inside multiple grooves 14. One ends of multiple bumps 10 are fixedly connected to one side of the push rod 2. When the push rod 2 slides inside the slot 7, it can drive the bump 10 to slide inside the groove 14, thereby limiting the push rod 2.

[0037] Torsion springs 15 are wound around the outer sides of multiple rotating shafts 16. One end of the torsion spring 15 is fixedly connected to one side of the inner side wall of the clamping head 6, and the other end of the torsion spring 15 contacts one side of the sleeve 17. When the push rod 2 moves in the direction away from the rim, the push rod 2 will drive the clamping head 6 to move together, and use the elastic force of the torsion spring 15 to push the sleeve 17 to rotate around the rotating shaft 16, thereby driving the pressing block 5 to rotate backward to release the clamping of the rim.

[0038] On one side of each of the multiple clamping heads 6, a second rubber pad 19 is fixedly connected. On one side of each of the multiple sleeves 17, a first rubber pad 18 is fixedly connected. When the clamping head 6 approaches the rim, the first rubber pad 18 and the second rubber pad 19 will change according to the shape of the rim, enabling the clamping head 6 to clamp the concave part of the rim.

[0039] Working principle: After placing the rim on the top of the bottom plate 1, start the motor 3 to drive the gear 11 to rotate. The rotation of the gear 11 drives the toothed ring 9 engaged with the gear 11 to rotate, thereby pushing the push rod 2 to slide inside the slot 7 and pushing the clamping head 6 to move towards the side close to the rim. Further, the clamping head 6 clamps the rim. When the clamping head 6 approaches the rim, the rim can squeeze the sleeve 17 inside the clamping head 6 to rotate around the rotating shaft 16 towards the side close to the rim, and drive the pressing block 5 to rotate downward to squeeze and fix the rim. By rotating the screw rod 4, the screw rod 4 extends out of the inside of the sleeve 17, thereby adjusting the height of the pressing block 5 to clamp rims of different sizes.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-station synchronous clamping structure for a wheel rim, characterized in that: include A bottom plate (1), wherein a groove (7) is formed at the top of the bottom plate (1); The push rod (2) is slidably connected inside the slot (7), and a clamping head (6) is fixedly connected to the top end for clamping the wheel rim: A tooth (13) fixedly connected to the bottom end of the push rod (2); A rotating shaft (16) is rotatably connected inside the clamping head (6), and a sleeve (17) is fixedly connected to one side thereof; The screw rod (4) is threadedly connected to the inside of the sleeve (17), and the top end of the screw rod (4) is rotatably connected to a pressing block (5), which is used to fix the wheel rim.

2. A wheel rim multi-station synchronous clamping structure according to claim 1, characterized in that: It also comprises a fixing plate (12) fixedly connected to one side of the bottom end of the base plate (1), one side of the fixing plate (12) being fixedly connected to a motor (3), a driving end of the motor (3) passing through the fixing plate (12) being fixedly connected to a gear (11), one side of the gear (11) being meshingly connected to a gear ring (9).

3. A wheel rim multi-station synchronous clamping structure according to claim 2, characterized in that: The gear ring (9) is rotatably connected to the bottom end of the base plate (1), the top end of the gear ring (9) is fixedly connected with a thread (8), the thread (8) is meshingly connected to the bottom end of the tooth (13), and the gear ring (9) is used to push the push rod (2) to slide.

4. The multi-station synchronous clamping structure for a wheel rim according to claim 1, characterized in that: A torsion spring (15) is wound around the outer side of the rotating shaft (16), and the torsion spring (15) is used to provide elastic force to the sleeve (17).

5. The multi-station synchronous clamping structure for a wheel rim according to claim 1, characterized in that: The inner wall of the slot (7) is provided with a groove (14), a convex block (10) is slidably connected inside the groove (14), one end of the convex block (10) is fixedly connected to one side of the push rod (2), and the convex block (10) is used to limit the push rod (2).

6. The multi-station synchronous clamping structure for a wheel rim according to claim 1, characterized in that: One side of the clamping head (6) is fixedly connected to a second rubber pad (19), and one side of the sleeve (17) is fixedly connected to a first rubber pad (18).

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