Hexagonal bolt rotation chamfering mechanism

Abstract

The present application relates to the technical field of bolt processing, in particular to a hexagonal bolt rotation chamfering mechanism, comprising a cutter disc capable of rotating around its own axis, a plurality of chamfering cutters are arranged on the circumferential outer wall of the cutter disc, and the chamfering cutters are oppositely inclined to the axis of the cutter disc; by means of the continuous rotation of the rotating body, the bolt can be continuously carried to move in an arc shape, realizing the one-way conveying function of the bolt, and in the process, by means of the rolling rotation of the bolt, any position on the bolt to be chamfered can correspond to the chamfering cutter on the cutter disc, so that the rotation movement of the cutter disc and the plurality of chamfering cutters on it is utilized to quickly chamfer the bolt, realizing the chamfering processing of the bolt under the condition of continuous dynamic conveying, and the processing mode does not need to repeat the operation of multiple steps as in the traditional mode, and has better continuity and higher work efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of bolt processing, and in particular to a rotating chamfering mechanism for hexagonal bolts. Background Technology

[0002] Hex bolts are widely used as fastening fasteners in various mechanical structures and engineering assemblies. The edges of the bolt ends and the beginning of the threads often have burrs, sharp edges or micro-cracks, which not only affect the smoothness of assembly, but may also cause stress concentration during use, leading to fatigue fracture. Therefore, chamfering is usually required during the bolt processing.

[0003] Currently, the chamfering of hexagonal bolts mostly relies on traditional chamfering equipment. The specific workflow is as follows: first, the bolt to be processed is fixed with a fixture, and then a high-speed rotating chamfering cutter is driven to feed axially, so that the chamfering cutter contacts the bolt to be chamfered and completes the rotational chamfering. After that, the chamfering cutter returns to its original position, the operator changes the bolt, and performs the clamping and cutting actions again. However, the above processing method requires frequent bolt changes, clamping and positioning, chamfering cutter advance and retreat, and other non-cutting auxiliary actions. When batch processing of hexagonal bolts is required, the intermittent processing method will seriously affect the production efficiency. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a hexagonal bolt rotating chamfering mechanism, the specific technical solution of which is as follows: The present invention provides a hexagonal bolt rotating chamfering mechanism, comprising: The cutter head is capable of rotating around its own axis. Several chamfering cutters are provided on the outer circumference of the cutter head, and the chamfering cutters are inclined relative to the axis of the cutter head. A rotating body is coaxially arranged with the cutter head and moves at a differential speed relative to it. During the rotation of the rotating body, the rotating body conveys the bolt along the movement trajectory of the chamfering cutter. An auxiliary plate is provided corresponding to the rotating body. The auxiliary plate has an arc surface that is coaxial with the cutter head. During the process of the rotating body conveying the bolt, the bolt rolls on the arc surface of the auxiliary plate, causing the chamfered end of the bolt to move relative to the chamfering cutter, and causing the bolt to move closer to the cutter head along the axis of the cutter head.

[0005] Furthermore, the rotating body includes two turntables distributed opposite to each other, both turntables being coaxially arranged with the cutter head, and each turntable having a plurality of placement slots on its outer circumferential wall for receiving bolts; During the portion of the process in which the turntable carries the bolt through the placement slot, the outer wall of the bolt rolls on the arc surface of the auxiliary plate.

[0006] Furthermore, several rollers are rotatably arranged inside the placement groove.

[0007] Furthermore, a plurality of side pushers are provided on a turntable located away from the cutter head, and the plurality of side pushers correspond one-to-one with the plurality of placement slots. During the rolling of the bolt, the side pushers provide the bolt with a thrust toward the cutter head.

[0008] Furthermore, the side pusher includes a threaded rod and a threaded sleeve that are threaded together. A gear one is synchronously rotated and relatively slidably disposed on the threaded sleeve. The end of the roller extends beyond the placement groove, and a gear two is disposed at the end of the roller that meshes with the gear one. Both ends of the gear two are provided with retaining edges that block the two end faces of the gear one.

[0009] Furthermore, a top cap is rotatably provided at the end of the threaded sleeve facing the cutter head.

[0010] Furthermore, the side pusher also includes a support plate, a support disk, and an auxiliary ring. The support plate is fixedly disposed relative to the turntable, the support disk is rotatably disposed on the support plate, the threaded rod is fixed on the support disk, and the auxiliary ring is rotatably disposed at the end of the threaded sleeve away from the cutter head. The auxiliary ring is provided with several insert rods. Several insertion holes are provided on both the support disk and the support plate. The insertion rod slides through the insertion holes on the support disk and the support plate. The auxiliary ring is connected to the support disk by a spring.

[0011] Furthermore, the support disk rotates eccentrically on the support plate; The side pusher also includes a top block and a second spring. The second spring pushes the top block against the outer circumferential wall of the support plate, and the support plate and the top block are slidably arranged relative to each other.

[0012] Furthermore, the chamfering cutter is slidably mounted on the cutter head via a slide block, and the sliding trajectory of the chamfering cutter is along its own inclined straight line direction; A support shaft is provided in the middle of the cutter head, and the cutter head is rotatably mounted on the support shaft. An annular groove composed of two arc grooves is provided on the end face of the support shaft. From one end of the arc groove to the other end, the distance between the arc groove and the axis of the support shaft gradually increases or decreases. A plurality of guide posts are slidably disposed within the annular groove, and the guide posts are rotatably connected to the corresponding slide blocks via inclined connecting rods; A retaining ridge is provided on the inner wall of the annular groove, and a retaining groove is provided on the outer wall of each guide post to cooperate with the retaining ridge.

[0013] The beneficial effects of this invention are as follows: By utilizing the continuous rotation of the rotating body, bolts can be continuously carried in an arc-shaped motion, achieving the unidirectional conveying function of bolts. During this process, by utilizing the rolling and rotating nature of the bolt, any position on the bolt to be chamfered can be aligned with the chamfering cutter on the cutter head. Thus, by utilizing the rotational motion of the cutter head and its several chamfering cutters, the bolts can be chamfered quickly, achieving chamfering of bolts under continuous dynamic conveying conditions. This processing method eliminates the need for repetitive operations with multiple steps required by traditional methods, resulting in better continuity and higher work efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a hexagonal bolt rotating chamfering mechanism; Figure 2 for Figure 1 Schematic diagram of the middle cutter head; Figure 3 for Figure 1 Schematic diagram of the auxiliary plate; Figure 4 for Figure 1 Schematic diagram of the structure of a rotating body; Figure 5 for Figure 4 A schematic diagram of the structure of the middle side pusher and its corresponding placement slot; Figure 6 for Figure 5 A structural schematic diagram of the middle-side thruster from another perspective; Figure 7 for Figure 6 A cross-sectional view of the top cap; Figure label: 1. Cutter head; 2. Chamfering cutter; 3. Rotating body; 4. Auxiliary plate; 5. Turntable; 6. Placement slot; 7. Roller; 8. Side pusher; 9. Threaded rod; 10. Threaded sleeve; 11. Top cap; 12. Gear 1; 13. Gear 2; 14. Side flange; 15. Support plate; 16. Support disc; 17. Auxiliary ring; 18. Insert rod; 19. Spring 1; 20. Top block; 21. Spring 2; 22. Slide; 23. Support shaft; 24. Arc groove; 25. Guide post; 26. Connecting rod; 27. Clamping edge; 28. Clamping groove. Detailed Implementation

[0016] 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. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0019] like Figures 1 to 7 As shown, a hexagonal bolt rotating chamfering mechanism of the present invention includes: The cutter head 1 is capable of rotating around its own axis. Several chamfering cutters 2 are provided on the outer circumference of the cutter head 1. The chamfering cutters 2 are inclined relative to the axis of the cutter head 1. The rotating body 3 is coaxially arranged with the cutter head 1 and moves at a differential speed relative to it. During the rotation of the rotating body 3, the rotating body 3 conveys the bolt along the movement trajectory of the chamfering cutter 2. Auxiliary plate 4 is set corresponding to rotating body 3. Auxiliary plate 4 has an arc surface set coaxially with cutter head 1. During the process of rotating body 3 conveying bolts, bolts roll on the arc surface of auxiliary plate 4, causing the chamfered end of bolts to move relative to chamfering cutter 2, and the bolts to move closer to cutter head 1 along the axis of cutter head 1.

[0020] In this invention, the cutter head 1 and the rotating body 3 are coaxially arranged. The axis of the cutter head 1 can be horizontal, inclined, or vertical, as long as it enables the chamfering cutters 2 on the cutter head 1 to cooperate with the rotating body 3, all are within the scope of protection of this invention. Taking the horizontal axis of the cutter head 1 as an example, the chamfering cutters 2 are arranged on the outer circumference of the cutter head 1, and the chamfering cutters 2 are inclined. Specifically, the chamfering cutters 2 can be located outside the movement trajectory of the rotating body 3. At this time, the opening of the angle between the straight line where the chamfering cutter 2 is located and the axis of the cutter head 1 faces the rotating body 3, and the contact position between the chamfering cutter 2 and the bolt on the rotating body 3 is located on the bolt away from the rotating body 3. On one side of the axis, or the chamfering cutter 2 can be located inside the movement trajectory of the rotating body 3. At this time, the opening of the angle between the straight line where the chamfering cutter 2 is located and the axis of the cutter head 1 is in the direction away from the rotating body 3. The contact position between the chamfering cutter 2 and the bolt on the rotating body 3 is located on the side of the bolt closer to the axis of the rotating body 3. Thus, depending on the position of the chamfering cutter 2, the bolt can be processed from two directions. Of course, at the same position on the outer circumference of the cutter head 1, two relatively inclined chamfering cutters 2 can be set so that the two chamfering cutters 2 can process two opposite positions on the bolt at the same time. The specific method can be determined according to the actual situation.

[0021] Since the chamfering cutter 2 is mounted on the cutter head 1 at a certain angle, the chamfering cutter 2 can be a cutter without an angle, or a cutter with a certain arc along the circumference of the cutter head 1. Of course, other types of cutters can also be used, as long as they can achieve the purpose of this case. The cutter head 1 can be driven to rotate by an external motor, thereby driving several chamfering cutters 2 to move synchronously. The rotating body 3 can also be driven to rotate by an external motor, so that it can move at a different speed than the cutter head 1. The auxiliary plate 4 is located outside the circumferential motion trajectory of the rotating body 3, and the position of the auxiliary plate 4 is fixed.

[0022] The rotating body 3 is mainly used to drive the bolt to make arc-shaped movements, so that the movement trajectory of the bolt corresponds to the movement trajectory of the chamfering cutter 2. The rotating body 3 and the auxiliary plate 4 can cooperate to make the bolt roll on the arc surface of the auxiliary plate 4, thereby enabling the bolt to be in a rotational state. In order for the chamfering cutter 2 to chamfer the position to be processed on the bolt, the movement speed of the chamfering cutter 2 needs to be different from the rotation speed of the bolt. That is, when the chamfering cutter 2 is rotating at high speed, the bolt can follow the rotating body 3 to move at a relatively lower speed than the chamfering cutter 2, and the bolt rolls synchronously.

[0023] In use, the drive head 1 and the rotating body 3 rotate. The drive head 1 drives several chamfering cutters 2 to move synchronously, conveying the bolt to the rotating body 3 through a conveyor belt, conveyor channel, or robotic arm. The rotating body 3 drives the bolt to move in an arc towards the auxiliary plate 4. When the bolt moves to the arc surface of the auxiliary plate 4 facing the rotating body 3, the friction between the bolt and the arc surface of the auxiliary plate 4 will cause the bolt to roll on the auxiliary plate 4 and rotate. This will push the bolt closer to the chamfering cutters 2. The rotating chamfering cutters 2 cut the bolt at the chamfered position. Due to the bolt's rotation, the chamfering cutters 2 can perform a full circumferential chamfering on the bolt at the chamfered position. When the bolt separates from the auxiliary plate 4, the rotating body 3 releases the bolt. At this time, the bolt has completed the chamfering work. As the rotating body 3 continues to rotate, bolts can be continuously conveyed to the rotating body 3 and chamfered by the continuous rotation of the chamfering cutters 2, realizing continuous bolt processing.

[0024] By utilizing the continuous rotation of the rotating body 3, the bolt can be continuously carried in an arc-shaped motion, realizing the unidirectional conveying function of the bolt. In this process, by utilizing the rolling and rotating nature of the bolt, any position on the bolt to be chamfered can correspond to the chamfering cutter 2 on the cutter head 1. Thus, by utilizing the rotational motion of the cutter head 1 and its several chamfering cutters 2, the bolt can be quickly chamfered, realizing the chamfering of the bolt under continuous dynamic conveying conditions. This processing method does not require the repetitive operation of multiple steps as in the traditional method, and its continuity is better and its work efficiency is higher.

[0025] Furthermore, the rotating body 3 includes two rotating disks 5 that are distributed opposite to each other. Both rotating disks 5 are coaxially arranged with the cutter head 1. Several placement grooves 6 are opened on the outer circumference of each rotating disk 5. The placement grooves 6 are used to store bolts. During the part of the process where the turntable 5 carries the bolt through the placement groove 6, the outer wall of the bolt rolls on the arc surface of the auxiliary plate 4.

[0026] The two turntables 5 are driven by an external motor to rotate synchronously. On the axis of the cutter head 1, the auxiliary plate 4 is located between the two turntables 5. In the circumferential direction of the turntables 5, the auxiliary plate 4 is located on the outside of the turntables 5. Several placement slots 6 on the two turntables 5 are used to store bolts. That is, the position to be processed on the bolt can face the direction of the cutter head 1. The bolt can be placed into the corresponding two placement slots 6 on the two turntables 5 along the axis of the cutter head 1. The bolt between the two placement slots 6 is mainly used to contact the auxiliary plate 4. Thus, when the two turntables 5 rotate, the two turntables 5 can carry the bolt to move synchronously. When the bolt moves to the position of the auxiliary plate 4, the arc surface of the auxiliary plate 4 contacts the outer wall of the bolt between the two turntables 5, so that the bolt can roll on the auxiliary plate 4 during the movement.

[0027] To enhance the transmission effect between the auxiliary plate 4 and the bolt, a coating that increases friction can be applied to the arc surface of the auxiliary plate 4, or other structures can be fabricated.

[0028] To prevent the bolt from falling out of the placement slot 6 due to gravity when it is placed in the slot, the bolt should be placed when the placement slot 6 is moved to the upper side of the axis of the turntable 5. At this time, the opening of the placement slot 6 is tilted upward, and the bolt will not fall out. Of course, a clamping structure can also be set in the placement slot 6 to clamp and fix the bolt. In this case, the placement position of the bolt is not restricted.

[0029] Furthermore, several rollers 7 are rotatably arranged inside the placement groove 6.

[0030] Since the bolt needs to roll when it comes into contact with the auxiliary plate 4, in order to reduce the friction between the bolt and the inner wall of the placement groove 6, several rollers 7 can be set on the inner wall of the placement groove 6 to support the bolt. At the same time, the bolt will drive the rollers 7 to rotate when it rotates.

[0031] Furthermore, a number of side pushers 8 are provided on a turntable 5 located away from the cutter head 1. Each of the side pushers 8 corresponds to a number of placement slots 6. During the rolling of the bolt, the side pushers 8 provide the bolt with a thrust toward the cutter head 1.

[0032] Since the bolt needs to actively approach the chamfering cutter 2 when it is rolling so that the rotating chamfering cutter 2 can be used to chamfer the bolt, a side pusher 8 needs to be provided on each placement slot 6 to provide thrust to the bolt.

[0033] Since the bolt only needs to move in one direction along the axis of the cutter head 1 when it is chamfered, the side pusher 8 can be set on only one turntable 5. When the bolt is chamfered and separated from the auxiliary plate 4, the placement groove 6 rotates to the lower side of the axis of the turntable 5. At this time, the opening of the placement groove 6 is tilted downward, and the bolt in the placement groove 6 can fall off naturally.

[0034] In some embodiments, the distance between the cutter head 1 and the rotating body 3 can be shortened so that when the bolt is placed in the placement groove 6, the position of the bolt to be processed is in contact with the chamfering cutter 2 on the cutter head 1. At this time, it is no longer necessary to use the side pusher 8 to provide pushing force to the bolt, and the rotating chamfering cutter 2 can chamfer the bolt. However, at this time, a clamping structure needs to be set in the placement groove 6 to fix the bolt. Otherwise, the bolt initially placed in the placement groove 6 will be pushed out of the placement groove 6 by the chamfering cutter 2, causing the bolt processing to be unstable or unable to be processed normally.

[0035] It should be noted that since the bolt can only contact the chamfering cutter 2 at any position of the chamfering location when it is rolling, the bolt needs to roll a certain distance to complete the chamfering. Within this distance, the movement trajectory of the bolt needs to correspond to the movement trajectory of the chamfering cutter 2. Therefore, the rotation axis of the chamfering cutter 2 needs to coincide with the axis of the turntable 5.

[0036] Furthermore, the side thrust body 8 includes a threaded rod 9 and a threaded sleeve 10 that are threadedly connected to each other. A gear 12 is synchronously rotated and relatively slidably arranged on the threaded sleeve 10. The end of the roller 7 extends beyond the placement groove 6, and a gear 2 13 that meshes with the gear 12 is provided at the end of the roller 7. Both ends of the gear 2 13 are provided with retaining edges 14 that block the two end faces of the gear 12.

[0037] A through hole is provided in the middle of gear 12. The threaded sleeve 10 passes through the through hole and slides relative to gear 12. In order for gear 12 and threaded sleeve 10 to rotate synchronously, the shape of the through hole and the outer wall shape of threaded sleeve 10 can be polygonal or other irregular shapes. The two retaining edges 14 on both sides of gear 2 13 can limit the two end faces of gear 12, so that when threaded sleeve 10 rotates relative to threaded rod 9, threaded sleeve 10 moves and slides relative to gear 12, and the positions of gear 12 and gear 2 13 remain relatively stationary.

[0038] When the bolt rolls, the bolt will drive the roller 7 to rotate due to friction. The roller 7 then drives the threaded sleeve 10 to rotate through gear 2 13 and gear 1 12. Since the threaded sleeve 10 is threadedly connected to the threaded rod 9, the threaded sleeve 10 will move towards the end of the bolt along the axis of the cutter head 1. Then the threaded sleeve 10 contacts the bolt and provides the bolt with an auxiliary thrust in the direction of the cutter head 1.

[0039] The above structure requires no additional power or extra control; it only requires the rotation of the bolts. Its structure and operation are simple and convenient.

[0040] In practical use, since the bolt needs to drive the roller 7 to rotate, and the bolt needs to slide relative to the roller 7 along the axis of the roller 7 when the side pusher 8 pushes the bolt to move, several protrusions can be provided on the surface of the roller 7. The length direction of the protrusions is along the axis of the roller 7, and the protrusions are distributed along the circumference of the roller 7. This can improve the transmission friction between the roller 7 and the bolt, and also ensure that the transmission friction does not affect the movement of the bolt along the axis of the roller 7.

[0041] Furthermore, a top cap 11 is rotatably provided at the end of the threaded sleeve 10 facing the cutter head 1.

[0042] Since the bolt is in a rolling state when it moves toward the cutter head 1, if the end of the threaded sleeve 10 directly abuts against the bolt, the bolt will generate relative friction with the threaded sleeve 10. The top cap 11 can avoid this friction, allowing the threaded sleeve 10 to directly push the bolt through the top cap 11, and the rotation of the bolt can drive the top cap 11 to move on the threaded sleeve 10.

[0043] Furthermore, the side pusher 8 also includes a support plate 15, a support disk 16, and an auxiliary ring 17. The support plate 15 is fixedly disposed relative to the turntable 5. The support disk 16 is rotatably disposed on the support plate 15. The threaded rod 9 is fixed on the support disk 16. The auxiliary ring 17 is rotatably disposed at the end of the threaded sleeve 10 away from the cutter head 1. Several insert rods 18 are disposed on the auxiliary ring 17. Several insertion holes are provided on both the support plate 16 and the support plate 15. The insertion rod 18 slides through the insertion holes on the support plate 16 and the support plate 15. The auxiliary ring 17 is connected to the support plate 16 by a spring 19.

[0044] The support plate 15 provides support for the support disk 16 and the threaded rod 9. The support plate 15 is fixed to the side wall of the turntable 5 by welding, bolting, or other means. When the insertion hole on the support disk 16 is aligned with the insertion hole on the support plate 15, the insertion rod 18 can pass through both insertion holes. At this time, the insertion rod 18 restricts the support disk 16 and the support plate 15, preventing the support disk 16 from rotating on the support plate 15 and the threaded rod 9 from rotating. When the threaded sleeve 10 rotates, the threaded sleeve 10 will move relative to the threaded rod 9, and the threaded sleeve 10 will move away from the support disk 16. The threaded sleeve 10 pulls the insertion rod 18 to move through the auxiliary ring 17, and the spring 19 is stretched. The insertion rod 18 restricts the auxiliary ring 17 in the opposite direction, preventing the auxiliary ring 17 from rotating synchronously with the threaded sleeve 10. When the end of the insertion rod 18 disengages from the insertion hole on the support plate 15 and is located on the support... When the bolt is inserted into the socket on the disc 16, the insert rod 18 no longer restricts the support disc 16. At this time, because the chamfering cutter 2 restricts the feed of the bolt, and the side pusher 8 can no longer provide feed force to the bolt, the bolt is stationary and only rotates along the axis of the cutter disc 1. That is, the bolt stops feeding after being fed to the specified position and continues to rotate. The threaded sleeve 10 and the support disc 16 rotate without load. The chamfering cutter 2 on the cutter disc 1 performs chamfering on the bolt fed to the specified position, thereby forming a regular chamfer surface on the bolt. This prevents the side pusher 8 from continuously providing feed force to the bolt when the bolt continues to rotate, thus preventing the formation of a regular chamfer surface on the bolt. The spring 19 is set so that after the bolt is processed and the socket on the support disc 16 is aligned with the socket on the support plate 15 again, the insert rod 18 and the threaded sleeve 10 can be pulled to reset.

[0045] It should be noted that when the end of the insertion rod 18 moves into the insertion hole of the support plate 16, the threaded sleeve 10 continues to rotate, so even if the insertion hole on the support plate 16 is aligned with the insertion hole on the support plate 15, the end of the insertion rod 18 cannot be inserted into the insertion hole on the support plate 15.

[0046] Furthermore, the support plate 16 rotates eccentrically on the support plate 15; The side pusher 8 also includes a top block 20 and a second spring 21. The second spring 21 pushes the top block 20 against the outer circumferential wall of the support plate 16, and the support plate 16 and the top block 20 are slidably arranged relative to each other.

[0047] When the support plate 16 rotates, due to its eccentric setting, it pushes the top block 20 to reciprocate along the radial direction of the support plate 16. The second spring 21 provides elastic force to the top block 20. When the bolt stops rolling and disengages from the auxiliary plate 4, the bolt no longer provides rotational power to the support plate 16. The elastic force provided by the second spring 21 to the top block 20 will assist in pushing the support plate 16 to rotate until the contact position between the top block 20 and the support plate 16 is closest to the rotation axis of the support plate 16. Thus, the top block 20 and the second spring 21 provide a reset force for the support plate 16. At this time, the insertion hole on the support plate 16 is aligned with the insertion hole on the support plate 15, and the insertion rod 18 can smoothly pass through the insertion hole on the support plate 15 and reset under the action of the first spring 19.

[0048] Furthermore, the chamfering cutter 2 is slidably mounted on the cutter head 1 via the slide block 22, and the sliding trajectory of the chamfering cutter 2 is along the direction of its own inclined straight line; A support shaft 23 is provided in the middle of the cutter head 1, and the cutter head 1 is rotatably mounted on the support shaft 23. An annular groove composed of two arc grooves 24 is provided on the end face of the support shaft 23. From one end of the arc groove 24 to the other end, the distance between the arc groove 24 and the axis of the support shaft 23 gradually increases or decreases. Several guide posts 25 are slidably arranged in the annular groove, and the guide posts 25 are rotatably connected to the corresponding slide blocks 22 by an inclined connecting rod 26. A retaining ridge 27 is provided on the inner wall of the annular groove, and a retaining groove 28 is provided on the outer wall of each guide post 25 to cooperate with the retaining ridge 27.

[0049] The support shaft 23 provides support for the cutter head 1. When the cutter head 1 rotates, the slide 22 moves in a circular motion. The slide 22 drives the guide post 25 to slide in the annular groove through the connecting rod 26. Due to the shape characteristics of the two arc grooves 24 in the annular groove, the distance between the guide post 25 and the axis of the support shaft 23 will change repeatedly. At this time, the guide post 25 pushes the slide 22 to slide on the cutter head 1 in the opposite direction through the connecting rod 26. The slide 22 drives the chamfering cutter 2 to move back and forth along the straight line where the chamfering cutter 2 is located. This allows the chamfering cutter 2 to chamfer the bolt at multiple positions of the cutting edge when it passes through the area where the auxiliary plate 4 is located, improving the full utilization of the chamfering cutter 2 and avoiding the situation where only specific areas of the chamfering cutter 2 can be used for a long time, resulting in a faster wear rate and lower utilization rate of the chamfering cutter 2.

[0050] When the guide post 25 moves within the annular groove, the locking ridge 27 and the locking groove 28 can restrict the guide post 25, preventing it from leaving the annular groove.

[0051] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A hexagonal bolt rotating chamfering mechanism, characterized in that, include: The cutter head is capable of rotating around its own axis. Several chamfering cutters are provided on the outer circumference of the cutter head, and the chamfering cutters are inclined relative to the axis of the cutter head. A rotating body is coaxially arranged with the cutter head and moves at a differential speed relative to it. During the rotation of the rotating body, the rotating body conveys the bolt along the movement trajectory of the chamfering cutter. An auxiliary plate is provided corresponding to the rotating body. The auxiliary plate has an arc surface that is coaxial with the cutter head. During the process of the rotating body conveying the bolt, the bolt rolls on the arc surface of the auxiliary plate, causing the chamfered end of the bolt to move relative to the chamfering cutter, and causing the bolt to move closer to the cutter head along the axis of the cutter head.

2. The hexagonal bolt rotating chamfering mechanism according to claim 1, characterized in that, The rotating body includes two rotating disks that are distributed opposite to each other. Both rotating disks are coaxially arranged with the cutter head. Each rotating disk has several placement slots on its outer circumferential wall for storing bolts. During the portion of the process in which the turntable carries the bolt through the placement slot, the outer wall of the bolt rolls on the arc surface of the auxiliary plate.

3. The hexagonal bolt rotating chamfering mechanism according to claim 2, characterized in that, Several rollers are rotatably arranged inside the placement groove.

4. A hexagonal bolt rotating chamfering mechanism according to claim 3, characterized in that, A plurality of side pushers are provided on a turntable located away from the cutter head. Each of the side pushers corresponds to a plurality of placement slots. During the rolling of the bolt, the side pushers provide the bolt with a thrust toward the cutter head.

5. A hexagonal bolt rotating chamfering mechanism according to claim 4, characterized in that, The side pusher includes a threaded rod and a threaded sleeve that are threaded together. A gear 1 is synchronously rotated and relatively slidably disposed on the threaded sleeve. The end of the roller extends beyond the placement groove. A gear 2 that meshes with the gear 1 is disposed at the end of the roller. Both ends of the gear 2 are provided with retaining edges that block the two end faces of the gear 1.

6. A hexagonal bolt rotating chamfering mechanism according to claim 5, characterized in that, A top cap is rotatably provided at the end of the threaded sleeve facing the cutter head.

7. A hexagonal bolt rotating chamfering mechanism according to claim 5, characterized in that, The side pusher also includes a support plate, a support disk, and an auxiliary ring. The support plate is fixedly disposed relative to the turntable. The support disk is rotatably disposed on the support plate. The threaded rod is fixed on the support disk. The auxiliary ring is rotatably disposed at the end of the threaded sleeve away from the cutter head. Several insert rods are disposed on the auxiliary ring. Several insertion holes are provided on both the support disk and the support plate. The insertion rod slides through the insertion holes on the support disk and the support plate. The auxiliary ring is connected to the support disk by a spring.

8. A hexagonal bolt rotating chamfering mechanism according to claim 7, characterized in that, The support disk rotates eccentrically on the support plate; The side pusher also includes a top block and a second spring. The second spring pushes the top block against the outer circumferential wall of the support plate, and the support plate and the top block are slidably arranged relative to each other.

9. A hexagonal bolt rotating chamfering mechanism according to claim 1, characterized in that, The chamfering cutter is slidably mounted on the cutter head via a slide block, and the sliding trajectory of the chamfering cutter is along the direction of its own inclined straight line; A support shaft is provided in the middle of the cutter head, and the cutter head is rotatably mounted on the support shaft. An annular groove composed of two arc grooves is provided on the end face of the support shaft. From one end of the arc groove to the other end, the distance between the arc groove and the axis of the support shaft gradually increases or decreases. A plurality of guide posts are slidably disposed within the annular groove, and the guide posts are rotatably connected to the corresponding slide blocks via inclined connecting rods; A retaining ridge is provided on the inner wall of the annular groove, and a retaining groove is provided on the outer wall of each guide post to cooperate with the retaining ridge.

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