Tail end chamfering device for bolt machining
By combining the design of the transmission mechanism, the gripper mechanism and the snap-fit mechanism, the problem of complex processing of bolts of different specifications in existing devices is solved, realizing automated continuous transmission and high-precision chamfering, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI SHUNCHI ELECTRIC POWER FITTINGS MANUFACTURING CO LTD
- Filing Date
- 2025-01-21
- Publication Date
- 2026-04-14
AI Technical Summary
Existing chamfering devices can only process bolts of certain specifications, which makes changing bolt types complicated, time-consuming, and increases production costs, making it difficult to meet the needs of diversified, small-batch production.
The combined design of the transmission mechanism, gripper mechanism, telescopic chamfering mechanism and telescopic snap-fit mechanism enables automated continuous transmission, precise chamfering and stable snap-fit of bolts, adapting to the processing needs of bolts of different specifications.
It improves bolt conveying efficiency and chamfering accuracy, ensures processing stability and quality, reduces equipment adjustment time, lowers production costs, and meets the needs of diversified production.
Smart Images

Figure CN224115774U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt end chamfering technology, and in particular to an end chamfering device for bolt processing. Background Technology
[0002] In the field of mechanical manufacturing, bolts are a widely used connecting component, and their processing quality plays a crucial role in the stability and reliability of the entire mechanical structure. With the continuous development of industrial technology, the requirements for the precision and quality of bolts are also increasing.
[0003] Existing chamfering devices can only process a few specific bolt sizes. For other bolt sizes, the process is complex and time-consuming, requiring the replacement of numerous fixtures or adjustment of equipment parameters. This leads to complicated and cumbersome adjustments when changing bolt types, requiring significant time and effort to readjust the tool position, increasing production costs. This fails to meet the demands of modern manufacturing for diversified, small-batch production, and makes it difficult for existing conveying devices used for bolt processing to position them correctly. Therefore, improvements are needed to address these issues. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an end chamfering device for bolt processing.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a bolt end chamfering device, comprising a machine base, a transmission mechanism horizontally provided on the top of the inner wall of the machine base, a receiving box provided on one side of the machine base, a bracket provided on the top of the machine base, a support plate horizontally provided in the middle of the bracket, a telescopic chamfering mechanism provided on the top of the bracket, and a telescopic snap-fit mechanism provided on the upper middle inner wall of the bracket.
[0006] Preferably, the transmission mechanism includes a drive roller horizontally arranged on the inner wall of one side of the machine base and a first motor fixed to one side of the drive roller. A driven roller is provided on the inner wall of the other side of the machine base. A conveyor belt is sleeved on the drive roller and the driven roller. A gripper mechanism is provided on the conveyor belt. A motor frame is fixed to the bottom of the first motor. The motor frame is fixed to the outer wall of the machine base.
[0007] Preferably, the gripper mechanism includes a telescopic cylinder disposed on the conveyor belt and a spring disposed inside the telescopic cylinder, wherein a telescopic block is fixedly connected to the end of the spring and the telescopic block is engaged with the telescopic cylinder.
[0008] Preferably, the telescopic chamfering mechanism includes a second electric cylinder disposed at the top of the bracket and a telescopic rod disposed at the bottom of the second electric cylinder. A motor groove is provided at the bottom of the telescopic rod, and a second motor is fixedly connected in the motor groove. A grinding head is fixedly connected to the motor shaft of the second motor, and the grinding hole inside the grinding head is inverted V-shaped.
[0009] Preferably, the telescopic locking mechanism includes a first electric cylinder disposed on the upper inner wall of the bracket and a connecting plate disposed at the end of the first electric cylinder. The connecting plate has a transverse sliding groove, and a bidirectional lead screw is provided transversely inside the sliding groove. One end of the bidirectional lead screw is connected to a micro motor installed inside the connecting plate. Both ends of the bidirectional lead screw are sleeved with sliding blocks that slide inside the sliding groove. The outer end faces of the two sliding blocks are fixedly connected with locking rollers.
[0010] Preferably, abutment blocks are fixed to both sides of the two sliding blocks, and threaded holes are provided on the abutment blocks. Bolts are inserted through the threaded holes to abut against the connecting plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation of the drive roller, the first motor, the driven roller, the conveyor belt, and the gripper mechanism in the transmission mechanism facilitates stable and efficient transmission of bolts, improving the transmission efficiency and stability of bolts, thereby enabling automated continuous processing. The cooperation of the second electric push cylinder, the telescopic rod, the second motor, and the grinding head in the telescopic chamfering mechanism facilitates precise control of the grinding head position and chamfering of the bolt ends, improving the accuracy and quality of chamfering, thereby enabling high-quality chamfering. The cooperation of the first electric push cylinder, the connecting plate, the sliding groove, the sliding block, the clamping roller, the abutment block, and the bolt in the telescopic clamping mechanism facilitates stable clamping of bolts during the chamfering process, improving the stability of bolts during processing, thereby enabling precise processing. Ultimately, this solves the problem that existing conveying devices for bolt processing are difficult to position. Attached Figure Description
[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed in this utility model;
[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the conveyor belt proposed in this utility model;
[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the spring proposed in this utility model;
[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the snap-fit roller proposed in this utility model;
[0017] Figure 5 This is a schematic diagram of the cross-sectional structure of the grinding head proposed in this utility model.
[0018] The numbers in the diagram are: 1. Machine base; 2. Receiving box; 3. First motor; 4. Support plate; 5. Drive roller; 6. Conveyor belt; 7. Telescopic block; 8. Telescopic cylinder; 9. Spring; 10. First electric pusher cylinder; 11. Sliding groove; 12. Sliding block; 13. Clamping roller; 14. Second electric pusher cylinder; 15. Second motor; 16. Grinding head. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Example: See Figure 1-5This utility model discloses a bolt end chamfering device, including a machine base 1. A transmission mechanism is horizontally arranged on the top inner wall of the machine base 1. A receiving box 2 is located on one side of the machine base 1. A support is located on the top of the machine base 1, with a support plate 4 horizontally arranged in the middle of the support. A telescopic chamfering mechanism is located on the top of the support, and a telescopic locking mechanism is located on the upper middle inner wall of the support. Through the layout of the machine base 1 and its components, a stable support and reasonable structural framework are provided for the entire device, enabling the orderly and coordinated operation of each component, ensuring the integrity and stability of the device, and providing a reliable foundation for bolt processing. The transmission mechanism includes a drive roller 5 horizontally arranged on one side of the inner wall of the machine base 1 and a first motor 3 fixedly connected to one side of the drive roller 5. A driven roller is located on the inner wall of the other side of the machine base 1. A conveyor belt 6 is sleeved on the drive roller 5 and the driven roller. A gripper mechanism is provided on the conveyor belt 6. A motor frame is fixedly connected to the bottom of the first motor 3. On the outer wall of the machine base 1, through the cooperation of the drive roller 5, the first motor 3, the driven roller and the conveyor belt 6, electrical energy can be converted into mechanical energy to drive the conveyor belt 6 to run stably, realize the efficient conveying of bolts, and thus realize the function of automated continuous feeding, improve production efficiency, reduce the tediousness and labor intensity of manual operation, and ensure the continuity and stability of bolt processing; the gripper mechanism includes a telescopic cylinder 8 set on the conveyor belt 6 and a spring 9 set inside the telescopic cylinder 8. The end of the spring 9 is fixed with a telescopic block 7, which is engaged with the telescopic cylinder 8. Through the arrangement of the telescopic cylinder 8, the spring 9 and the telescopic block 7, the elasticity of the spring 9 can be used to make the telescopic block 7 flexibly adapt to bolts of different sizes, realize the stable clamping of bolts, and thus realize the clamping function of bolts of various specifications, improve the versatility and adaptability of the device, ensure that bolts will not be displaced or fall off during the conveying process, and ensure the accuracy and stability of processing.
[0021] In this utility model, the telescopic chamfering mechanism includes a second electric push cylinder 14 disposed at the top of the bracket and a telescopic rod disposed at the bottom of the second electric push cylinder 14. A motor groove is provided at the bottom of the telescopic rod, and a second motor 15 is fixedly connected to the motor groove. A grinding head 16 is fixedly connected to the motor shaft of the second motor 15. The grinding hole inside the grinding head 16 is inverted V-shaped. Through the cooperation of the second electric push cylinder 14, the telescopic rod, the second motor 15, and the grinding head 16, the lifting and rotation of the grinding head 16 can be precisely controlled to precisely chamfer the bolt end, thereby achieving a high-precision bolt end chamfering function, ensuring the quality and accuracy of the chamfer, meeting the strict requirements of industrial production for bolt processing, and improving the product qualification rate and quality stability. The telescopic snap-fit mechanism includes a first electric push cylinder 10 disposed on the upper inner wall of the bracket and a connecting plate disposed at the end of the first electric push cylinder 10. The connecting plate has a transverse sliding groove 11. The internal transverse rotation is provided by a bidirectional lead screw. One end of the bidirectional lead screw is connected to a micro motor installed inside the connecting plate. Both ends of the bidirectional lead screw are fitted with sliding blocks 12 that slide inside the sliding groove 11. The outer end faces of the two sliding blocks 12 are fixed with clamping rollers 13. Through the arrangement of the first electric push cylinder 10, the connecting plate, the sliding groove 11, the sliding blocks 12 and the clamping rollers 13, the clamping position can be flexibly adjusted according to the size of the bolt to achieve stable clamping of the bolt. This prevents the bolt from shaking or shifting during the chamfering process, improves the processing accuracy and stability, and reduces the scrap rate. Abutment blocks are fixed on both sides of the two sliding blocks 12. The abutment blocks have threaded holes, and bolts pass through the threaded holes to abut against the connecting plate. Through the abutment blocks and bolts, the sliding blocks 12 can be tightened to ensure the stable position of the clamping rollers 13 during operation, thereby achieving the stable locking function of the clamping mechanism.
[0022] Working Principle: In use of this invention, the bolt to be processed is first placed in the gripper mechanism on the conveyor belt 6, with the end of the bolt facing the telescopic chamfering mechanism. The spring 9 inside the telescopic cylinder 8 pushes the telescopic block 7 to clamp the bolt, adapting to the bolt size and ensuring it does not loosen during transport. Power is supplied to the first motor 3, the second electric push cylinder 14, and the second motor 15, starting the first motor 3 and driving the roller 5 to rotate, which in turn drives the conveyor belt 6 to transport the bolt to the processing area. When the bolt is transported to the processing position, the first electric push cylinder 10 is activated, pushing the connecting plate forward. The sliding block 12 drives the clamping roller 13 to clamp the bolt, fixing it in the appropriate position and preventing it from shaking during chamfering. At this time, the bolt width can be adjusted by driving the micro motor to rotate the bidirectional lead screw. The position of the sliding block 12 within the sliding groove 11 allows the clamping roller 13 to better adapt to the bolt size, ensuring a secure clamping. The second electric push cylinder 14 is activated, pushing the telescopic rod downwards to bring the grinding head 16 closer to the bolt end. Simultaneously, the second motor 15 is activated, driving the grinding head 16 to rotate and chamfer the bolt end. The inverted V-shaped grinding hole inside the grinding head 16 effectively removes burrs from the bolt end and forms a chamfer. By precisely controlling the extension and retraction of the second electric push cylinder 14 and the rotation speed of the second motor 15, the accuracy and quality of the chamfering can be guaranteed. After the bolt end is chamfered, the second electric push cylinder 14 drives the telescopic rod upwards, moving the grinding head 16 away from the bolt. The first electric push cylinder 10 drives the connecting plate backwards, releasing the clamping of the bolt. The conveyor belt 6 continues to run, conveying the processed bolt to the receiving box 2.
Claims
1. A bolt end chamfering device, comprising a machine base (1), characterized in that: The machine (1) has a transmission mechanism horizontally arranged on the top of its inner wall, a receiving box (2) on one side of the machine (1), a support on the top of the machine (1), a support plate (4) horizontally arranged in the middle of the support, a telescopic chamfering mechanism on the top of the support, and a telescopic snap-fit mechanism on the upper middle inner wall of the support.
2. The bolt end chamfering device according to claim 1, characterized in that: The transmission mechanism includes a drive roller (5) horizontally arranged on the inner wall of one side of the machine base (1) and a first motor (3) fixed to one side of the drive roller (5). A driven roller is provided on the inner wall of the other side of the machine base (1). A conveyor belt (6) is sleeved on the drive roller (5) and the driven roller. A gripper mechanism is provided on the conveyor belt (6). A motor frame is fixed to the bottom of the first motor (3). The motor frame is fixed to the outer wall of the machine base (1).
3. The bolt end chamfering device according to claim 2, characterized in that: The gripper mechanism includes a telescopic cylinder (8) disposed on the conveyor belt (6) and a spring (9) disposed inside the telescopic cylinder (8). The end of the spring (9) is fixedly connected to a telescopic block (7), which is engaged with the telescopic cylinder (8).
4. The end chamfering device for bolt processing according to claim 1, characterized in that: The telescopic snap-fit mechanism includes a first electric push cylinder (10) set on the upper inner wall of the bracket and a connecting plate set at the end of the first electric push cylinder (10). The connecting plate has a sliding groove (11) in the transverse direction. A bidirectional lead screw is provided in the sliding groove (11) in the transverse direction. One end of the bidirectional lead screw is connected to a micro motor installed inside the connecting plate.
5. The bolt end chamfering device according to claim 4, characterized in that: Both ends of the bidirectional lead screw are fitted with sliding blocks (12) that slide inside the sliding groove (11), and the outer end faces of the two sliding blocks (12) are fixed with clamping rollers (13).
6. The bolt end chamfering device according to claim 5, characterized in that: Two sliding blocks (12) are fixed to both sides with abutment blocks. The abutment blocks have threaded holes, and bolts are inserted in the threaded holes to abut against the connecting plate.