Tolerance adjuster

Abstract

The utility model discloses a kind of tolerance regulators, the nut is fixedly installed in positioning sleeve, clamping spring is fixedly installed in hollow screw, hollow screw is fixedly installed in nut, the side of the positioning sleeve stretches outward and is bent downward to form lock jaw, the other side of the positioning sleeve stretches outward and is connected with the one end of lock plate after soft, the other end of the lock plate is buckled together with lock jaw, the clamping spring is made of upper ring frame and lower ring frame, 3-6 inward bending elastic sheets are vertically arranged between the upper ring frame and lower ring frame, it further includes gasket and shock pad, the utility model has the advantages that: by setting lock jaw and soft connection lock plate structure on the two sides of positioning sleeve, the lock jaw and lock plate can be used to fix and install the present tolerance regulator on the component needing support adjustment, assembly is very convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of support devices, and more specifically to the technical field of a tolerance adjustment device for support. Background Technology

[0002] A tolerance adjuster is a device used to adjust the tolerances between parts during the installation process. It can compensate for dimensional deviations generated during the manufacturing and assembly of parts to a certain extent, ensuring that the gaps and surface differences between components meet the design requirements. It is often used in fields such as automobile manufacturing where high assembly precision is required.

[0003] A tolerance adjuster generally consists of a nut, a hollow screw, a snap ring, and a positioning sleeve. The nut is fixedly installed inside the positioning sleeve, which has positioning claws. The positioning sleeve uses its positioning claws to mount the tolerance adjuster onto the component requiring support and adjustment. The snap ring is snapped and fixedly installed inside the hollow screw, which is screwed into the nut. The snap ring transmits torque to the hollow screw, driving it to rotate. With the cooperation of the nut and the hollow screw, vertical support and tolerance adjustment are achieved. Currently used tolerance adjusters have the following shortcomings: First, when the component requiring support and adjustment lacks the conditions for fixing and positioning with positioning claws, existing tolerance adjusters cannot be fixed and positioned, thus failing to install and use properly. Second, the existing snap ring structure design is not reasonable enough; after the screw is inserted, it cannot automatically center itself, resulting in a small contact area and limited torque transmission. Third, existing tolerance adjusters lack vibration damping capabilities and cannot adapt to use in vibrating environments. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing a tolerance adjuster that is not limited by positioning holes, is easy to assemble, automatically positions the center upon screw insertion, facilitates torque transmission, and is suitable for use in vibration environments.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] The tolerance adjuster includes a nut, a hollow screw, a retaining ring, and a positioning sleeve. The nut is fixedly installed inside the positioning sleeve, and the retaining ring is snapped and fixedly installed inside the hollow screw. The hollow screw is screwed into the nut. One side of the positioning sleeve extends outward and bends downward to form a locking claw. The other side of the positioning sleeve extends outward and is flexibly connected to one end of a locking plate. The other end of the locking plate engages with the locking claw. The retaining ring is composed of an open upper ring frame and a lower ring frame. Three to six inwardly bent spring pieces are vertically arranged between the upper and lower ring frames. It also includes a washer and a shock-absorbing pad. The washer is provided with multiple L-shaped fixing claws. The washer is fixed to the upper side of the hollow screw by its L-shaped fixing claws. The shock-absorbing pad is placed between the washer and the hollow screw.

[0007] Preferably, the open-shaped upper and lower ring frames are both regular polygonal structures.

[0008] Preferably, the inwardly curved spring is located at the straight edge of the regular polygon of the upper and lower ring frames.

[0009] Preferably, the locking claw has a limiting hole, and the other end of the locking plate is fastened into the limiting hole of the locking claw.

[0010] Preferably, a limiting rib is provided in the limiting hole of the locking claw, and an avoidance groove corresponding to the limiting rib is provided at the other end of the locking plate.

[0011] Preferably, the locking plate has a slot corresponding to the center hole of the hollow screw, and a limiting claw extending inward is provided around the upper side of the slot. The locking nut is fixedly installed in the slot by the limiting claw.

[0012] Preferably, the locking nut is a hexagonal flange nut.

[0013] Preferably, the retaining claws on the gasket consist of 4 to 6 pieces.

[0014] Preferably, the nut has vertical anti-rotation teeth on its outer side, and a locking ring is also provided on the outer side of the nut.

[0015] The beneficial effects that this utility model can achieve by adopting the above-mentioned technical solution are:

[0016] 1. By setting locking claws and flexible locking plates on both sides of the positioning sleeve, the tolerance adjuster can be fixedly installed on the component that needs support and adjustment using the locking claws and locking plates, making assembly very convenient;

[0017] 2. By designing a snap ring structure with a regular polygon and multiple inwardly curved spring pieces, it is not only beneficial to fix the snap ring in the hollow screw, but also to facilitate automatic center positioning after insertion into the screw, thereby increasing the contact area of ​​the screw and improving torque transmission.

[0018] 3. By setting a vibration pad on the upper side of the hollow screw, this product can adapt to the needs of use in vibration environments;

[0019] 4. By setting multiple L-shaped fixing claws on the gasket, the gasket is fixed to the upper side of the hollow screw through its L-shaped fixing claws. In this way, the vibration pad can be firmly fixed to the hollow screw through the gasket, preventing it from loosening in the vibration environment.

[0020] 5. By setting limiting claws around the slot of the locking plate, the locking nut can be locked in the slot to prevent the locking nut from coming out of the slot of the locking plate during transportation and vibration. At the same time, it is also convenient for the locking nut to come out of the slot and contact the component under a certain torque to form an effective connection.

[0021] 6. By setting anti-rotation teeth and locking rings on the outside of the nut, the anti-rotation effect of the nut in the positioning sleeve is improved, and the nut can also be prevented from coming out of the positioning sleeve. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0024] Figure 3 This is a schematic diagram of the snap ring structure in this utility model;

[0025] Figure 4 This is a schematic diagram of the nut structure in this utility model;

[0026] Figure 5 This is a schematic diagram of the locking plate and locking nut in this utility model.

[0027] 1. Nut; 2. Hollow screw; 3. Snap ring; 4. Positioning sleeve; 5. Anti-rotation tooth; 6. Locking ring; 7. Locking claw; 8. Limiting hole; 9. Limiting rib; 10. Locking plate; 11. Clearance groove; 12. Slot; 13. Limiting claw; 14. Locking nut; 15. Upper ring frame; 16. Lower ring frame; 17. Spring; 18. Washer; 19. Shock-absorbing pad; 20. Fixing claw. Detailed Implementation

[0028] Depend on Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the tolerance adjuster includes a nut 1, a hollow screw 2, a retaining ring 3, and a positioning sleeve 4. The outer side of the nut 1 is provided with vertical anti-rotation teeth 5, and a locking ring 6 is also provided on the outer side of the nut 1. The nut 1 is tightly fitted and fixed inside the positioning sleeve 4. One side of the positioning sleeve 4 extends outward and bends downward to form a locking claw 7. A limiting hole 8 is provided on the locking claw 7, and a limiting rib 9 is provided within the limiting hole 8. The other side of the positioning sleeve 4 extends outward and is flexibly connected to one end of a locking plate 10. This flexible connection facilitates the free bending of the locking plate 10. The other end of the locking plate 10 has a relief groove 11 corresponding to the limiting rib 9. The other end of the locking plate 10 is fastened into the limiting hole 8 of the locking claw 7. The locking claws 7 and the flexible locking plate 10 structure on both sides of the sleeve 4 allow the tolerance adjuster to be fixedly installed on the component requiring support and adjustment, making assembly very convenient. The locking plate 10 also has a slot 12 corresponding to the center hole of the hollow screw 2. Limiting claws 13 extending inward are provided around the upper side of the slot 12. The locking nut 14 is fixedly installed in the slot 12 through the limiting claws 13. The limiting claws 13 around the slot 12 of the locking plate 10 not only lock the locking nut 14 in the slot 12 to prevent it from coming out during transportation and vibration, but also facilitate its installation under certain torque. Under the action of force, the locking nut 14 can disengage from the slot 12 and contact the component to form an effective connection. The locking nut 14 is a hexagonal flange nut. The retaining spring 3 is composed of an open upper ring frame 15 and a lower ring frame 16. Three to six inwardly bent spring pieces 17 are vertically arranged between the upper ring frame 15 and the lower ring frame 16. The open upper ring frame 15 and the lower ring frame 16 are respectively regular polygonal structures. The inwardly bent spring pieces 17 are located at the straight edges of the regular polygons of the upper ring frame 15 and the lower ring frame 16. The retaining spring 3 is snapped and fixedly installed in the hollow screw 2. By designing a retaining spring structure with regular polygons and multiple inwardly bent spring pieces 17, it is not only convenient for the retaining spring 3 to be fixed in the hollow screw 2, but also convenient for insertion. The automatic center positioning after the screw is inserted increases the contact area of ​​the screw and improves the torque transmission. The hollow screw 2 is screwed into the nut 1. It also includes a washer 18 and a shock-absorbing pad 19. The washer 18 is provided with 4-6 L-shaped fixing claws 20. The washer 18 is fixed to the upper side of the hollow screw 2 by its L-shaped fixing claws 20. The shock-absorbing pad 19 is placed between the washer 18 and the hollow screw 2. The vibration pad 19 provided on the upper side of the hollow screw 2 makes this product suitable for use in vibration environments. By providing multiple L-shaped fixing claws 20 on the washer 18, the vibration pad 19 can be firmly fixed to the hollow screw 2 by the washer 18, preventing it from loosening in vibration environments.

Claims

1. A tolerance adjuster, characterized in that: The device includes a nut, a hollow screw, a retaining spring, and a positioning sleeve. The nut is fixedly installed inside the positioning sleeve, and the retaining spring is snapped and fixed inside the hollow screw. The hollow screw is screwed into the nut. One side of the positioning sleeve extends outward and bends downward to form a locking claw. The other side of the positioning sleeve extends outward and is flexibly connected to one end of a locking plate. The other end of the locking plate engages with the locking claw. The retaining spring consists of an open upper ring frame and a lower ring frame. Three to six inwardly bent spring pieces are vertically arranged between the upper and lower ring frames. The device also includes a washer and a shock-absorbing pad. The washer has multiple L-shaped fixing claws, and the washer is fixed to the upper side of the hollow screw by its L-shaped fixing claws. The shock-absorbing pad is placed between the washer and the hollow screw.

2. The tolerance adjuster according to claim 1, characterized in that: The upper and lower ring frames, which are open in shape, are both regular polygonal structures.

3. The tolerance adjuster according to claim 2, characterized in that: The inwardly curved spring is located at the straight edge of the regular polygon of the upper and lower ring frames.

4. The tolerance adjuster according to claim 1, characterized in that: The locking claw has a limiting hole, and the other end of the locking plate is fastened into the limiting hole of the locking claw.

5. The tolerance adjuster according to claim 4, characterized in that: The locking claw is provided with a limiting rib in the limiting hole, and the other end of the locking plate is provided with an avoidance groove corresponding to the limiting rib.

6. The tolerance adjuster according to claim 1, characterized in that: The locking plate has a slot corresponding to the center hole of the hollow screw. A limiting claw extending inward is provided around the upper side of the slot, and the locking nut is fixedly installed in the slot by the limiting claw.

7. The tolerance adjuster according to claim 6, characterized in that: The locking nut is a hexagonal flange nut.

8. The tolerance adjuster according to claim 1, characterized in that: The retaining claws on the gasket consist of 4 to 6 pieces.

9. The tolerance adjuster according to claim 1, characterized in that: The nut has vertical anti-rotation teeth on its outer side, and a locking ring is also provided on the outer side of the nut.

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