A tool for grinding anti-loosening threaded sleeves

By designing outer and inner grinding mechanisms and utilizing the cooperation of motors and telescopic cylinders, automatic all-round grinding of anti-loosening threaded sleeves was achieved, solving the problem of low efficiency of existing equipment and improving grinding efficiency.

CN224445451UActive Publication Date: 2026-07-03XINXIANG JINBEIKE MACHINERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINXIANG JINBEIKE MACHINERY CO LTD
Filing Date
2025-07-07
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing anti-loosening threaded sleeve grinding equipment requires frequent manual adjustments to the grinding posture, resulting in low efficiency.

Method used

A grinding device for anti-loosening threaded sleeves was designed, comprising an outer circle grinding mechanism and an inner circle grinding mechanism. Through the cooperation of motor drive and telescopic cylinder, the outer and inner surfaces of the anti-loosening threaded sleeves are automatically ground in all directions.

Benefits of technology

It improves the grinding efficiency of anti-loosening thread inserts, reduces the generation of defective products, and achieves efficient all-round grinding of anti-loosening thread inserts.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses a grinding device for anti-loosening threaded inserts, relating to the field of threaded insert grinding. It includes a support plate, with an outer circular grinding mechanism on one side of the top of the support plate and an inner circular grinding mechanism adapted to the outer circular grinding mechanism on the other side of the top of the support plate. This utility model, through the action of the outer circular grinding mechanism, facilitates the grinding of the outer surface of the anti-loosening threaded insert. The anti-loosening threaded insert is placed with its groove facing the limiting ring and fitted onto the mounting rod, so that the groove is locked onto the corresponding limiting block. A spring pushes the corresponding retaining balls outward, locking both retaining balls onto the other side of the anti-loosening threaded insert. The grinding device grinds the outer surface of the anti-loosening threaded insert. Controlling the operation of a first motor, which drives the first telescopic cylinder to rotate via an L-shaped plate, causes the anti-loosening threaded insert to rotate, resulting in all-around grinding of the outer surface of the anti-loosening threaded insert. This effectively grinds the outer surface of the anti-loosening threaded insert, improving grinding efficiency and reducing the generation of defective products.
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Description

Technical Field

[0001] This utility model relates to the field of threaded sleeve grinding technology, and in particular to a threaded sleeve grinding device for preventing loosening. Background Technology

[0002] As a key component for improving the reliability and anti-loosening performance of threaded connections, anti-loosening thread inserts enhance thread strength and prevent thread wear and loosening. With the continuous improvement of product quality and reliability requirements in various industries, the surface quality and precision of anti-loosening thread inserts have become key factors affecting their performance. Grinding is an important process for improving the surface quality of anti-loosening thread inserts.

[0003] Place the anti-loosening bolt on the cylinder and control its rotation. Use a grinding belt to grind the outer surface of the anti-loosening bolt. Then, use a clamp to remove the anti-loosening bolt from the cylinder and grind the inner circle of the anti-loosening bolt to complete the all-round grinding of the anti-loosening bolt.

[0004] Most existing anti-loosening bolt grinding equipment requires frequent manual adjustment of the anti-loosening bolt's placement, which increases grinding time and reduces grinding efficiency. Therefore, this paper proposes an anti-loosening bolt grinding device. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a tool for grinding anti-loosening threaded sleeves.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a grinding device for anti-loosening threaded sleeves, including a support plate, an outer circle grinding mechanism is provided on one side of the top of the support plate, and an inner circle grinding mechanism adapted to the outer circle grinding mechanism is provided on the other side of the top of the support plate.

[0009] As a preferred embodiment of the anti-loosening threaded sleeve grinding equipment of this utility model, the outer circle grinding mechanism includes an L-shaped plate, an installation rod provided on one side of the L-shaped plate, a limit ring fixedly installed on the outer surface of the installation rod, a limit block symmetrically installed on one side of the limit ring, springs symmetrically arranged inside the installation rod, a retaining bead provided on one side of the spring, and a grinding instrument adapted to the installation rod fixedly installed on the top of the support plate.

[0010] As a preferred embodiment of the anti-loosening screw sleeve grinding equipment of this utility model, the inner circle grinding mechanism includes a U-shaped frame fixedly installed on the top of a support plate. A fixing plate is symmetrically installed on the top of the U-shaped frame. A bidirectional screw is movably installed on the opposite side of the fixing plate through a bearing seat. A limit rod is symmetrically and movably installed on the outside of the bidirectional screw through a threaded sleeve. A clamping plate is provided on one side of the bottom of the limit rod.

[0011] In a preferred embodiment of the anti-loosening threaded sleeve grinding device of the present invention, a side plate is fixedly installed on the top of the support plate, a first motor is fixedly connected to one side of the side plate, the output end of the first motor passes through the side plate and is fixedly installed on one side of the L-shaped plate, a first telescopic cylinder is provided inside the L-shaped plate, and the mounting rod is fixedly installed on the output end of the first telescopic cylinder.

[0012] As a preferred embodiment of the anti-loosening screw sleeve grinding device of this utility model, the first motor output end and the first telescopic cylinder are concentric and horizontal, the mounting rod is symmetrically provided with circular grooves adapted to the retaining ball, the retaining ball is slidably connected in the circular groove, and both limiting blocks are fixedly connected to the mounting rod.

[0013] As a preferred embodiment of the anti-loosening screw sleeve grinding device of this utility model, the U-shaped frame has a sliding groove adapted to the limiting rod, both limiting rods are slidably connected in the sliding groove, one end of the bidirectional screw passes through the fixing plate and is fixedly installed with a third motor, a support block is fixedly installed at the center of the U-shaped frame, and the bidirectional screw is rotatably connected in the support block.

[0014] In a preferred embodiment of the anti-loosening threaded sleeve grinding device of the present invention, a second telescopic cylinder is fixedly installed at the top center of the support plate, a sliding plate is provided on the top of the support plate, a second motor is fixedly installed on one side of the sliding plate, a grinding column is fixedly installed through the output end of the second motor through the sliding plate, and T-shaped sliders are symmetrically arranged at the bottom of the sliding plate.

[0015] In a preferred embodiment of the anti-loosening threaded sleeve grinding device of the present invention, the T-shaped slider is fixedly installed at the output end of the second telescopic cylinder, and the top of the support plate is symmetrically provided with T-shaped grooves adapted to the T-shaped slider, and the T-shaped slider is slidably connected inside the T-shaped grooves.

[0016] (III) Beneficial Effects

[0017] This utility model provides a grinding device for anti-loosening threaded sleeves. It has the following beneficial effects:

[0018] 1. The outer cylindrical grinding mechanism facilitates the grinding of the outer surface of the anti-loosening screw sleeve. The anti-loosening screw sleeve is positioned with its groove facing the limiting ring and fitted onto the mounting rod, causing the groove to engage with the corresponding limiting block. Under the action of the spring, the corresponding retaining balls are pushed outwards, securing both retaining balls on the other side of the anti-loosening screw sleeve. The grinding machine then grinds the outer surface of the anti-loosening screw sleeve. The first motor is controlled to rotate, driving the first telescopic cylinder via the L-shaped plate, causing the anti-loosening screw sleeve fitted on the outside of the mounting rod to rotate, thus grinding the outer surface of the anti-loosening screw sleeve from all directions. This process improves grinding efficiency and reduces the production of defective products.

[0019] 2. The inner grinding mechanism grinds the inner surface of the anti-loosening screw sleeve. The third motor is controlled to rotate, causing the output end to rotate the bidirectional lead screw, which in turn moves the two limit rods towards the support block, causing the two clamping plates to move towards each other and clamp the outer surface of the anti-loosening screw sleeve. The second telescopic cylinder is controlled to move the sliding plate towards the U-shaped frame, which in turn moves the grinding column towards the inner cavity of the anti-loosening screw sleeve. Then, the second motor is controlled to rotate the grinding column, grinding the inner surface of the anti-loosening screw sleeve. This mechanism provides rapid grinding of the inner surface of the anti-loosening screw sleeve. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the overall structure of the outer circle grinding mechanism of this utility model.

[0023] Figure 3 This is a partial cross-sectional schematic diagram of the outer circle grinding mechanism of this utility model.

[0024] Figure 4 This is a schematic diagram of the overall structure of the inner circle grinding mechanism of this utility model.

[0025] Figure 5 This is a partial cross-sectional schematic diagram of the inner circle grinding mechanism of this utility model.

[0026] In the diagram, 1. Support plate; 2. Outer circle grinding mechanism; 201. Side plate; 202. L-shaped plate; 203. First motor; 204. First telescopic cylinder; 205. Limiting ring; 206. Mounting rod; 207. Grinding instrument; 208. Limiting block; 209. Spring; 210. Clamping ball; 3. Inner circle grinding mechanism; 301. U-shaped frame; 302. Fixing plate; 303. Grinding column; 304. Sliding plate; 305. Second motor; 306. Second telescopic cylinder; 307. T-shaped slider; 308. Third motor; 309. Bidirectional lead screw; 310. Support block; 311. Limiting rod; 312. Clamping plate. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example

[0028] Reference Figure 1 , Figure 2 and Figure 3 This is the first embodiment of the present utility model. This embodiment provides a grinding device for anti-loosening threaded sleeves, including a support plate 1. An outer circle grinding mechanism 2 is provided on one side of the top of the support plate 1, and an inner circle grinding mechanism 3 adapted to the outer circle grinding mechanism 2 is provided on the other side of the top of the support plate 1.

[0029] The outer cylindrical grinding mechanism 2 includes an L-shaped plate 202, a mounting rod 206 on one side of the L-shaped plate 202, a limiting ring 205 fixedly mounted on the outer surface of the mounting rod 206, a limiting block 208 mounted on one side of the limiting ring 205, springs 209 symmetrically arranged inside the mounting rod 206, a retaining bead 210 on one side of the springs 209, and a grinding instrument 207 adapted to the mounting rod 206 fixedly mounted on the top of the support plate 1.

[0030] Specifically, a side plate 201 is fixedly installed on the top of the support plate 1. A first motor 203 is fixedly connected to one side of the side plate 201. The output end of the first motor 203 passes through the side plate 201 and is fixedly installed on one side of the L-shaped plate 202. A first telescopic cylinder 204 is provided inside the L-shaped plate 202. An installation rod 206 is fixedly installed on the output end of the first telescopic cylinder 204. When the first motor 203 is running, the output end of the first motor 203 drives the L-shaped plate 202 to rotate on one side of the side plate 201, thereby driving the first telescopic cylinder 204 and the output end of the first motor 203 to rotate concentrically, so that the self-tapping anti-loosening screw sleeve sleeved on the outside of the installation rod 206 rotates, which facilitates the all-round grinding of the anti-loosening screw sleeve by the grinder 207.

[0031] Specifically, the output end of the first motor 203 and the first telescopic cylinder 204 are concentric and horizontal. The mounting rod 206 has symmetrically opened circular grooves that are adapted to the locking ball 210. The locking ball 210 is slidably connected inside the circular groove. Both limit blocks 208 are fixedly connected to the mounting rod 206. The slot on one side of the anti-loosening screw sleeve is locked on the limit block 208. Under the action of the spring 209, the corresponding locking ball 210 is pushed outward. The locking ball 210 fixes the anti-loosening screw sleeve on the outside of the mounting rod 206 to prevent it from coming off the mounting rod 206 during the grinding process.

[0032] Furthermore, the anti-loosening screw sleeve is placed on the mounting rod 206 with the groove facing the limiting ring 205, so that the groove of the anti-loosening screw sleeve is locked on the corresponding limiting block 208. Under the action of the spring 209, the corresponding retaining ball 210 is pushed outward, so that both retaining balls 210 are locked on the other side of the anti-loosening screw sleeve. The outer surface of the anti-loosening screw sleeve is polished by the polishing machine 207. The first motor 203 is controlled to run, and the first telescopic cylinder 204 is rotated through the L-shaped plate 202, so that the anti-loosening screw sleeve on the outside of the mounting rod 206 is rotated, and the outer surface of the anti-loosening screw sleeve is polished in all directions. Example

[0033] Reference Figure 4 and Figure 5 This is the second embodiment of the present invention, which is based on the previous embodiment. The inner circle grinding mechanism 3 includes a U-shaped frame 301 fixedly installed on the top of the support plate 1. A fixing plate 302 is symmetrically installed on the top of the U-shaped frame 301. A bidirectional lead screw 309 is movably installed on the opposite side of the fixing plate 302 through a bearing seat. A limit rod 311 is symmetrically and movably installed on the outside of the bidirectional lead screw 309 through a threaded sleeve. A clamping plate 312 is provided on one side of the bottom of the limit rod 311.

[0034] Specifically, the U-shaped frame 301 has a sliding groove inside that is adapted to the limiting rods 311. Both limiting rods 311 are slidably connected inside the sliding groove. One end of the bidirectional lead screw 309 passes through the fixing plate 302 and is fixedly installed with a third motor 308. A support block 310 is fixedly installed at the center inside the U-shaped frame 301. The bidirectional lead screw 309 is rotatably connected inside the support block 310. Under the action of the sliding groove of the U-shaped frame 301, when the two limiting rods 311 move, the lateral movement of the limiting rods 311 is ensured, the rotation of the limiting rods 311 is restricted, and the stability of the movement of the limiting rods 311 is improved. After the two clamping plates 312 move towards each other, the anti-loosening screw sleeve that has been polished on the outer ring can be removed, and then the inner ring can be polished.

[0035] Specifically, a second telescopic cylinder 306 is fixedly installed at the top center of the support plate 1, a sliding plate 304 is provided on the top of the support plate 1, a second motor 305 is fixedly installed on one side of the sliding plate 304, and a grinding column 303 is fixedly installed through the output end of the second motor 305 through the sliding plate 304. T-shaped sliders 307 are symmetrically arranged at the bottom of the sliding plate 304. When the second telescopic cylinder 306 moves, with the assistance of the two T-shaped sliders 307, the sliding plate 304 is pushed from the top of the support plate 1 toward the U-shaped frame 301. Through the reciprocating movement of the second telescopic cylinder 306, the inner surface of the anti-loosening screw sleeve is ground by the grinding column 303.

[0036] Specifically, the T-shaped slider 307 is fixedly installed at the output end of the second telescopic cylinder 306. The top of the support plate 1 is symmetrically provided with T-shaped grooves that are adapted to the T-shaped slider 307. The T-shaped slider 307 is slidably connected inside the T-shaped groove. Under the action of the two T-shaped sliders 307, the sliding plate 304 is reciprocated and pushed to ensure the stability of the movement of the sliding plate 304.

[0037] Furthermore, the third motor 308 is controlled to operate, and its output end drives the bidirectional lead screw 309 to rotate, thereby driving the two limit rods 311 to move simultaneously toward the support block 310, thereby moving the two clamping plates 312 toward each other. The two clamping plates 312 clamp the outer surface of the anti-loosening screw sleeve. The second telescopic cylinder 306 is controlled to operate, and the second telescopic cylinder 306 drives the sliding plate 304 to move toward the U-shaped frame 301, thereby driving the grinding column 303 to move toward the inner cavity of the anti-loosening screw sleeve. Then, the second motor 305 is controlled to operate, causing the grinding column 303 to rotate, and the inner surface of the anti-loosening screw sleeve is ground.

[0038] Working principle: The device is connected to an external power supply and controller via a wiring harness. The polishing device 207 is a conventional structure, driven by two rollers and a polishing belt, identical to existing publicly disclosed designs. The anti-loosening sleeve is then positioned with its slot facing the limiting ring 205 and fitted onto the mounting rod 206, causing the slot to engage with the corresponding limiting block 208. Under the action of the spring 209, the corresponding retaining beads 210 are pushed outwards, securing both beads 210 to the other side of the anti-loosening sleeve. The polishing device 207 polishes the outer surface of the anti-loosening sleeve. The first motor 203 is controlled to rotate, driving the first telescopic cylinder 204 via the L-shaped plate 202. This causes the anti-loosening sleeve fitted on the outside of the mounting rod 206 to rotate, polishing the outer surface of the anti-loosening sleeve from all angles. After polishing, the first telescopic cylinder 204 is activated, extending the anti-loosening sleeve fitted on the outside of the mounting rod 206 to both sides. The clamping plates 312 are positioned opposite each other. Then, the third motor 308 is controlled to run. The output end of the third motor 308 drives the bidirectional lead screw 309 to rotate, thereby driving the two limit rods 311 to move simultaneously toward the support block 310. This causes the two clamping plates 312 to move toward each other and clamp the two clamping plates 312 onto the outer surface of the anti-loosening screw sleeve. Then, the first telescopic cylinder 204 is controlled to move in the opposite direction, causing the anti-loosening screw sleeve to detach from the mounting rod 206. Finally, the second telescopic cylinder 306 is controlled to run. The second telescopic cylinder 306 drives the sliding plate 304 to move toward the U-shaped frame 301, thereby driving the grinding column 303 to move toward the inner cavity of the anti-loosening screw sleeve. Then, the second motor 305 is controlled to run, causing the grinding column 303 to rotate and grind the inner surface of the anti-loosening screw sleeve. This completes the grinding of the inner and outer surfaces of the anti-loosening screw sleeve. Then, the ground anti-loosening screw sleeve is removed from the opposite side of the two clamping plates 312, and the next anti-loosening screw sleeve can be ground.

[0039] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A grinding device for anti-loosening threaded sleeves, comprising a support plate (1), characterized in that: The support plate (1) is provided with an outer circle grinding mechanism (2) on one side of the top, and an inner circle grinding mechanism (3) adapted to the outer circle grinding mechanism (2) is provided on the other side of the top. An external cylindrical grinding mechanism (2) includes an L-shaped plate (202), a mounting rod (206) is provided on one side of the L-shaped plate (202), a limiting ring (205) is fixedly installed on the outer surface of the mounting rod (206), a limiting block (208) is symmetrically installed on one side of the limiting ring (205), a spring (209) is symmetrically provided inside the mounting rod (206), a retaining bead (210) is provided on one side of the spring (209), and a grinding instrument (207) adapted to the mounting rod (206) is fixedly installed on the top of the support plate (1). The inner circle grinding mechanism (3) includes a U-shaped frame (301) fixedly installed on the top of the support plate (1). A fixing plate (302) is symmetrically installed on the top of the U-shaped frame (301). A two-way screw (309) is movably installed on the opposite side of the fixing plate (302) through a bearing seat. A limit rod (311) is symmetrically and movably installed on the outside of the two-way screw (309) through a threaded sleeve. A clamping plate (312) is provided on one side of the bottom of the limit rod (311).

2. The anti-loosening threaded sleeve grinding equipment according to claim 1, characterized in that: A side plate (201) is fixedly installed on the top of the support plate (1). A first motor (203) is fixedly connected to one side of the side plate (201). The output end of the first motor (203) passes through the side plate (201) and is fixedly installed on one side of the L-shaped plate (202). A first telescopic cylinder (204) is provided inside the L-shaped plate (202). The mounting rod (206) is fixedly installed on the output end of the first telescopic cylinder (204).

3. The anti-loosening threaded sleeve grinding equipment according to claim 2, characterized in that: The output end of the first motor (203) and the first telescopic cylinder (204) are concentric and horizontal. The mounting rod (206) has symmetrically opened circular grooves that are adapted to the locking ball (210). The locking ball (210) is slidably connected inside the circular groove. Both limiting blocks (208) are fixedly connected to the mounting rod (206).

4. The anti-loosening threaded sleeve grinding equipment according to claim 3, characterized in that: The U-shaped frame (301) has a sliding groove inside that is adapted to the limiting rod (311). Both limiting rods (311) are slidably connected inside the sliding groove. One end of the bidirectional screw (309) passes through the fixing plate (302) and is fixedly installed with a third motor (308). A support block (310) is fixedly installed at the center inside the U-shaped frame (301). The bidirectional screw (309) is rotatably connected inside the support block (310).

5. The anti-loosening threaded sleeve grinding equipment according to claim 4, characterized in that: A second telescopic cylinder (306) is fixedly installed at the top center of the support plate (1). A sliding plate (304) is provided on the top of the support plate (1). A second motor (305) is fixedly installed on one side of the sliding plate (304). A grinding column (303) is fixedly installed through the output end of the second motor (305) through the sliding plate (304). T-shaped sliders (307) are symmetrically arranged at the bottom of the sliding plate (304).

6. The anti-loosening threaded sleeve grinding equipment according to claim 5, characterized in that: The T-shaped slider (307) is fixedly installed at the output end of the second telescopic cylinder (306). The top of the support plate (1) is symmetrically provided with T-shaped grooves that are adapted to the T-shaped slider (307). The T-shaped slider (307) is slidably connected inside the T-shaped groove.