Reaming tool bit assembly for sliding sleeve of suspension fork

Abstract

The utility model discloses a reaming tool bit assembly for a sliding sleeve of a suspension fork. The reaming tool bit assembly comprises a tool bit and a fixing mechanism, mounting grooves are formed in the outer surfaces of the tool bits, blades are mounted on the inner walls of the mounting grooves through bolts, and mounting holes are formed in the middles of the tool bits; and the fixing mechanism comprises clamping blocks, avoiding grooves, second connecting rods, fixing rings and a supporting column, the front end and the rear end of the outer surface of the supporting column are fixedly connected with the fixing rings correspondingly, the outer surfaces of the fixing rings are rotationally connected with the second connecting rods which are evenly distributed through pin shafts correspondingly, and the avoiding grooves are formed in the bottom ends of the clamping blocks correspondingly. The tool bit and the clamping block can be ensured to be connected more firmly, tool bit assemblies of different sizes can be fixed, the reaming accuracy of the shock-proof front fork sliding sleeve is improved, and meanwhile the situation of tool vibration during reaming of the shock-proof front fork sliding sleeve can be relieved by adjusting the angle of the cutting edge.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle parts, especially a shock-absorbing front fork, specifically a reaming cutter head assembly for a shock-absorbing front fork sliding sleeve. Background Technique

[0002] The front fork sliding sleeve is a component installed on the front fork of a bicycle or motorcycle. It is usually used for shock absorption and protecting the vehicle structure. It can help reduce the vibration suffered by the vehicle during driving and improve the riding comfort and stability. However, when processing the shock-absorbing front fork sliding sleeve, it is necessary to fix the cutter head assembly to ensure that the processing position of the cutter for reaming the front fork sliding sleeve is accurate during the processing.

[0003] The traditional reaming cutter head assembly for a shock-absorbing front fork sliding sleeve aligns the cutter head assembly with the output shaft of the motor, and then fixes the cutter head assembly by inserting bolts or positioning pins into the mounting holes. The traditional reaming cutter head assembly for a shock-absorbing front fork sliding sleeve has the following problems: Using positioning pins or bolts may limit the size range of the available cutter head assemblies, and it is easy for the size of the cutter head assembly to not match the mounting holes or bolts, which limits flexibility and versatility, and the stability is poor, especially under vibration or impact loads. However, when the traditional cutter head assembly is subjected to secondary processing or operation, chatter may occur. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a reaming cutter head assembly for a shock-absorbing front fork sliding sleeve to ensure a more firm connection between the cutter head and the clamping block, and can fix cutter head assemblies with different sizes, improving flexibility, and effectively solving the problems in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A reaming cutter head assembly for a shock-absorbing front fork sliding sleeve, including a cutter head and a fixing mechanism;

[0006] Mounting grooves are respectively opened on the outer surface of the cutter head, cutting edges are installed on the inner walls of the mounting grooves through bolts, and a mounting hole is opened in the middle of the cutter head;

[0007] The fixing mechanism includes clamping blocks, relief grooves, connecting rods II, fixing rings and struts. Fixing rings are respectively fixedly connected to the front and rear ends of the outer surface of the strut. Uniformly distributed connecting rods II are rotatably connected to the outer surfaces of the fixing rings through pins. Relief grooves are opened at the bottom ends of the clamping blocks. The front and rear ends of the relief grooves and the adjacent connecting rods II are rotatably connected through pins, and the clamping blocks are respectively fitted and installed with the inner wall of a mounting hole.

[0008] Further, both the left and right ends of the cutting edge have an angle of degrees. By adjusting the angle of the cutting edge, the situation of chatter is reduced to a certain extent.

[0009] Furthermore, the fixing mechanism further includes a screw rod, a sliding ring, and a first connecting rod. The screw rod is fixedly connected to the front end of the pillar. The outer surface of the screw rod is slidably connected with the sliding ring. The outer surface of the sliding ring is rotatably connected with uniformly distributed first connecting rods through pin shafts. One end of the first connecting rod away from the center of the screw rod and the front end of the adjacent avoidance groove are both rotatably connected through pin shafts, providing the transmission of the movement track and force.

[0010] Furthermore, the fixing mechanism further includes an internal thread ring and a rotating groove. The rotating groove is opened on the front side surface of the sliding ring. The inner wall of the rotating groove is rotatably connected with the internal thread ring through a bearing. The inner wall of the internal thread ring is threadedly connected with the outer surface of the screw rod, driving the fixing mechanism.

[0011] Furthermore, the central axes of the fixing ring, the sliding ring, and the internal thread ring coincide with each other, improving the smoothness of the work.

[0012] Furthermore, the fixing mechanism further includes a fixing block. The fixing block is fixedly connected to the front end of the screw rod, preventing the internal thread ring from falling off.

[0013] Furthermore, the fixing mechanism further includes a socket. The socket is opened at the rear end of the pillar, facilitating the connection with an external driving device.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Rotate the internal thread ring. When the internal thread ring rotates, due to its threaded connection with the screw rod, the internal thread ring moves along the axis of the screw rod. The movement of the internal thread ring causes the sliding ring to move accordingly and rotate in the rotating groove through the bearing. The movement of the sliding ring drives the pin shaft connected to the first connecting rod as the center, causing the first connecting rod to rotate. This rotation angle can be determined according to the position of the pin shaft on the sliding ring. The rotation of the first connecting rod drives the clamping block at the top to rotate through pushing. The rotation of the clamping block simultaneously drives the second connecting rod to rotate with the pin shaft of the fixing ring as the center. Finally, by rotating the internal thread ring to a certain extent, the clamping block is tightly pressed against the inner wall of the mounting hole, and it can be appropriately rotated according to the size of the tool head. Thus, through the tight pressing, the connection between the tool head and the clamping block is made more firm, and the tool head assemblies with different sizes can be fixed, thereby improving the accuracy of reaming the shock absorber front fork sliding sleeve.

[0016] 2. By adjusting the angle of the cutting edge, the vibration of the tool during reaming the shock absorber front fork sliding sleeve is reduced to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2This is a schematic structural view of the right side cross-section of the utility model;

[0019] Figure 3 This is an enlarged schematic structural view of part A of the utility model;

[0020] Figure 4 This is an enlarged schematic structural view of part B of the utility model.

[0021] In the figure: 1 blade, 2 tool bit, 3 mounting hole, 4 fixing mechanism, 401 internal thread ring, 402 screw rod, 403 rotating groove, 404 sliding ring, 405 connecting rod one, 406 clamping block, 407 avoiding groove, 408 connecting rod two, 409 fixing ring, 410 socket, 411 support column, 412 fixing block, 5 mounting groove. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , this embodiment provides a technical solution: a shock-absorbing front fork bushing reaming tool bit assembly, including a tool bit 2 and a fixing mechanism 4;

[0024] Among them, mounting grooves 5 are respectively formed on the outer surface of the tool bit 2, and blades 1 are installed on the inner walls of the mounting grooves 5 through bolts. The inclined surfaces at both left and right ends of the blades 1 have an angle of 15 degrees. Thus, the front fork bushing is reamed by the blades 1 installed on the tool bit 2 through bolts. However, by applying a 15-degree angle to both left and right ends of the blades 1, the direction and magnitude of the cutting force can be adjusted, thereby reducing the vibration of the tool to a certain extent. After machining for a certain period of time, due to the heat generated by the blades 1 and the increase in temperature, it is necessary to remove the bolts on the blades 1 and take them off for cooling. An installation hole 3 is formed in the middle of the tool bit 2, and the installation hole 3 on the tool bit 2 is sleeved on the clamping block 406;

[0025] Among them, the fixing mechanism 4 includes clamping blocks 406, avoidance grooves 407, second connecting rods 408, fixing rings 409 and struts 411. Fixing rings 409 are fixedly connected to the front and rear ends of the outer surface of the strut 411 respectively. Uniformly distributed second connecting rods 408 are rotatably connected to the outer surfaces of the fixing rings 409 through pins. Avoidance grooves 407 are formed at the bottom ends of the clamping blocks 406. The front and rear ends of the avoidance grooves 407 and the adjacent second connecting rods 408 are rotatably connected through pins. The clamping blocks 406 are all fitted and installed with the inner wall of an installation hole 3; the fixing mechanism 4 further includes a screw 402, a sliding ring 404 and a first connecting rod 405. The screw 402 is fixedly connected to the front end of the strut 411. A sliding ring 404 is slidably connected to the outer surface of the screw 402. Uniformly distributed first connecting rods 405 are rotatably connected to the outer surface of the sliding ring 404 through pins. One end of the first connecting rod 405 far from the center of the screw 402 and the front end of the adjacent avoidance groove 407 are rotatably connected through pins; the fixing mechanism 4 further includes an internal thread ring 401 and a rotating groove 403. The rotating groove 403 is formed in the front side surface of the sliding ring 404. An internal thread ring 401 is rotatably connected to the inner wall of the rotating groove 403 through a bearing. The inner wall of the internal thread ring 401 is threadedly connected to the outer surface of the screw 402. The central axes of the fixing rings 409, the sliding ring 404 and the internal thread ring 401 coincide with each other; the fixing mechanism 4 further includes a fixing block 412. The fixing block 412 is fixedly connected to the front end of the screw 402. The fixing mechanism 4 further includes a socket 410. The socket 410 is formed in the rear end of the strut 411.

[0026] The working principle of the present utility model is as follows:

[0027] Before reaming the front fork sliding sleeve, first, the installation hole 3 on the cutting head 2 is sleeved on the clamping block 406, and then the internal thread ring 401 is rotated. When the internal thread ring 401 rotates, through its threaded connection with the screw 402, the internal thread ring 401 moves along the axis of the screw 402. The movement of the internal thread ring 401 causes the sliding ring 404 to move accordingly and rotate in the rotating groove 403 through the bearing. The movement of the sliding ring 404 drives the pin of the first connecting rod 405 connected thereto as the center, causing the first connecting rod 405 to rotate. This rotation angle can be determined according to the pin position on the sliding ring 404. The rotation of the first connecting rod 405 pushes the clamping block 406 to rotate through the top end. The rotation of the clamping block 406 simultaneously drives the second connecting rod 408 to rotate with the pin of the fixing ring 409 as the center. Finally, by rotating the internal thread ring 401 to a certain extent, the clamping block 406 is tightly pressed against the inner wall of the installation hole 3, and it can be appropriately rotated according to the size of the cutting head 2. Thus, through the tight pressing, it can be ensured that the connection between the cutting head 2 and the clamping block 406 is more firm;

[0028] Then connect the socket 410 to an external driving device to drive the fixing mechanism 4 and the cutter head 2 to rotate. Thus, the reamer on the cutter head 2 installed by bolts is used to ream the front fork sliding sleeve. However, by applying a 15-degree angle to both the left and right ends of the reamer, the direction and magnitude of the cutting force can be adjusted, thereby reducing the vibration of the vibrating cutter to a certain extent;

[0029] After machining for a certain period of time, due to the heat generated by the reamer and the increase in temperature, it is necessary to remove the bolts on the reamer and take it off for cooling;

[0030] When the reaming is completed, rotate the internal thread ring 401 in the reverse direction. Through its threaded connection with the screw rod 402, the internal thread ring 401 moves in the reverse direction along the axis of the screw rod 402. This will cancel the pushing force on the sliding ring 404, resulting in the release of the force of the connecting rod 405, the connecting rod 408, and the clamping block 406. Thus, the squeezing force no longer acts on the mounting hole 3 in the middle of the cutter head 2, thereby releasing the fixed state of the cutter head. And the internal thread ring 401 is blocked by the fixing block 412 to prevent the internal thread ring 401 from falling off.

[0031] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A shock-absorbing front fork sliding sleeve reaming cutter head assembly, characterized in that: It comprises a cutter head (2) and a fixing mechanism (4); The outer surfaces of the cutter heads (2) are respectively provided with mounting grooves (5), the inner walls of the mounting grooves (5) are respectively provided with blades (1) mounted thereon by means of bolts, and a mounting hole (3) is provided in the middle of the cutter head (2); The fixing mechanism (4) comprises a clamping block (406), an avoidance groove (407), a second connecting rod (408), a fixing ring (409) and a pillar (411); the front and rear ends of the outer surface of the pillar (411) are respectively fixedly connected with a fixing ring (409); the outer surface of the fixing ring (409) is rotatably connected with a uniformly distributed second connecting rod (408) via a pin shaft; the bottom end of the clamping block (406) is provided with an avoidance groove (407); the front and rear ends of the avoidance groove (407) are rotatably connected with the second connecting rod (408) at the adjacent end via a pin shaft; and the clamping block (406) is mounted in cooperation with the inner wall of a mounting hole (3).

2. The suspension front fork sliding sleeve reaming cutter head assembly according to claim 1, characterized in that: The inclined surfaces at the left and right ends of the blade (1) both have an angle of 15 degrees.

3. The suspension front fork sliding sleeve reaming cutter head assembly according to claim 1, characterized in that: The fixing mechanism (4) further comprises a screw rod (402), a slip ring (404) and a connecting rod (405); the screw rod (402) is fixedly connected to the front end of the pillar (411); the outer surface of the screw rod (402) is slidably connected to the slip ring (404); the outer surface of the slip ring (404) is rotatably connected to the connecting rods (405) distributed evenly via a pin; the end of the connecting rod (405) away from the center of the screw rod (402) is rotatably connected to the front end of the adjacent avoidance groove (407) via a pin.

4. The suspension front fork sliding sleeve reaming cutter head assembly according to claim 3, characterized in that: The fixing mechanism (4) further comprises an internal thread ring (401) and a rotation groove (403), wherein the rotation groove (403) is provided on the front side of the slip ring (404), the inner wall of the rotation groove (403) is rotationally connected to the internal thread ring (401) via a bearing, and the inner wall of the internal thread ring (401) is threadedly connected to the outer surface of the screw rod (402).

5. The suspension front fork sliding sleeve reaming cutter head assembly according to claim 4, characterized in that: The central axes of the fixed ring (409), the sliding ring (404) and the internal threaded ring (401) coincide with each other.

6. The shock-absorbing front fork sliding sleeve reaming tool head assembly according to claim 3, characterized in that: The fixing mechanism (4) further comprises a fixing block (412), wherein the fixing block (412) is fixedly connected to the front end of the screw rod (402).

7. The suspension front fork sliding sleeve reaming tool head assembly according to claim 3, characterized in that: The fixing mechanism (4) further comprises a socket (410), wherein the socket (410) is opened at the rear end of the support (411).

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