A fixture for processing an electric bicycle accessory

Abstract

The utility model relates to electric bicycle accessory processing technical field, especially an electric bicycle accessory processing is with clamp, its including fixed base, its surface fixedly connected with support circular table, rotation base is connected with on support circular table, tension mechanism is equipped in the axis department of rotation base, and is suitable for assembling in the axle hole of spoke wheel hub, spoke wheel tension is firm and stable, support arm is at least provided with three, and all are around support circular table axis setting, clamping jaw is equipped on support arm, the utility model discloses setting up the clamping jaw of radial sliding on several support arms respectively, can carry out the clamping to spoke wheel, when polishing processing treatment, under the action of rotating ring spare, spoke wheel can rotate, adjusts processing position, when needing to polish processing treatment to the part of clamping jaw and spoke wheel outer circle contact, only need to rotate spoke wheel, under the action of auxiliary wheel, can expose the part of clamping jaw and spoke wheel outer circle contact.

Description

Technical Field

[0001] This utility model relates to a processing fixture, and more particularly to a fixture for processing electric bicycle parts, belonging to the field of electric bicycle parts processing technology. Background Technology

[0002] An electric bicycle is a personal transportation tool powered by a battery and driven by an electric motor, allowing for both human-powered riding and electric assistance. Compared to a traditional bicycle, an electric bicycle adds electrical components such as a motor, battery, and controller, retaining the bicycle's lightweight and flexible characteristics while reducing physical exertion through electric assistance. It has become an important choice for urban commuting and short-distance travel.

[0003] The mechanical components of an electric bicycle mainly include the frame, wheels, handlebars, seat, braking system, and pedal transmission. Among these, the wheels are one of the most important components. The wheels are primarily spoked wheels, which consist of the rim, spokes, and tire. During the manufacturing process, the welded joints, stamping burrs, and cutting marks on the spokes usually need to be ground and polished. In this process, a clamp is often used to fix the spokes. However, existing clamps mainly use a three-jaw clamping mechanism to hold the spokes. When grinding the spokes, the contact area between the jaws and the spokes is blocked by the jaws and cannot be ground. Only after the spokes are ground can the jaws be released and the spokes adjusted to grind the contact area between the jaws and the spokes, which is inconvenient to operate. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a jig for processing electric bicycle parts that facilitates the machining of wheels.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A jig for processing electric bicycle parts includes a fixed base with a supporting frustum fixedly connected to its surface, and a rotating base rotatably connected to the supporting frustum; a tensioning mechanism located at the axis of the rotating base and capable of being fitted into the shaft hole of a spoked wheel hub to tension and stabilize the spoked wheel; at least three support arms, all arranged around the axis of the supporting frustum; and grippers located on the support arms, driven by a telescopic rod and sliding along the extension direction of the support arms, with auxiliary wheels provided on the side of the grippers facing the supporting frustum.

[0006] Furthermore, a rotating groove is provided on the outer wall of the supporting frustum, and a plurality of balls are equidistantly arranged in the rotating groove around the central axis of the supporting frustum. A rotating ring is rotatably connected to the rotating groove, and the inner ring of the rotating ring is in contact with the balls. One end of the supporting arm is connected to the rotating ring.

[0007] Furthermore, a sliding groove is provided at the end of the support arm away from the supporting frustum along its extension direction, a sliding plate is slidably connected in the sliding groove, the gripper is connected to the sliding plate, the telescopic rod is connected to the support arm, and the sliding plate is connected to the movable end of the telescopic rod.

[0008] Furthermore, the gripper has two V-shaped rotating parts on the side near the supporting truncated cone, and each rotating part is rotatably connected to at least one of the auxiliary wheels.

[0009] Furthermore, a toothed ring is connected to the rotating ring component, and a plurality of positioning grooves are equidistantly opened on the toothed ring around its central axis. A fixing block is connected to the fixing base, and a pin hole is opened on the fixing block along the radial direction of the toothed ring. A pin is slidably connected to the pin hole, and one end of the pin near the toothed ring is movably engaged with the positioning groove. A fastening bolt is provided on the fixing block, with one end connected to the bolt and the other end extending into the pin hole.

[0010] Furthermore, the tensioning mechanism includes a telescopic tube and tensioning components, wherein there are several tensioning components, which are equidistantly arranged around the central axis of the supporting frustum; wherein, the tensioning component includes a bracket, a track plate, a tensioning plate, and a connecting rod; The bracket is connected to the supporting pedestal, the track plate is connected to the bracket and is arranged radially along the supporting pedestal, the track plate has a radial groove, one end of the tension plate has a protrusion suitable for sliding in the radial groove, the tension plate extends along the axial direction of the supporting pedestal, the telescopic tube is located at the axial direction of the supporting pedestal, the connecting rod is located between the telescopic tube and the tension plate, and both ends of the connecting rod are rotatably connected to the telescopic tube and the tension plate respectively.

[0011] Furthermore, the tensioning mechanism also includes a drive motor and a threaded rod. The telescopic tube has a threaded hole along its axis suitable for accommodating the threaded rod. One end of the threaded rod is threaded into the threaded hole, and the output end of the drive motor is connected to the end of the threaded rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This application utilizes radially sliding grippers on several support arms to clamp the spokes. During grinding, the spokes can be rotated and the processing position adjusted by the action of the rotating ring. The rotating ring is locked by the cooperation between the toothed ring and the pin. When grinding is required on the part where the grippers contact the outer ring of the spokes, simply rotate the spokes. With the action of the auxiliary wheel, the part where the grippers contact the outer ring of the spokes can be exposed, and then the part can be ground. During this process, the tensioning mechanism always follows the rotation of the spokes under the action of the rotating base. Moreover, the position of the spokes can be adjusted without loosening the grippers, facilitating the grinding of the contact part between the grippers and the spokes. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is an exploded view of part of the structure of this utility model; Figure 5 This is a schematic diagram of the explosive structure of the tensioning mechanism of this utility model.

[0014] In the diagram, 1. Fixed base; 2. Supporting frustum; 3. Rotating base; 4. Support arm; 6. Gripper; 7. Telescopic rod; 8. Auxiliary wheel; 9. Rotating groove; 10. Ball bearing; 11. Rotating ring; 12. Sliding groove; 13. Sliding plate; 14. Rotating part; 15. Toothed ring; 16. Positioning groove; 17. Fixing block; 18. Pin hole; 19. Pin; 20. Fastening bolt; 21. Telescopic tube; 22. Track plate; 23. Bracket; 24. Tensioning plate; 25. Connecting rod; 26. Protrusion; 27. Drive motor; 28. Threaded rod; 29. ​​Radial groove; 30. Threaded hole; 31. Switch. Detailed Implementation

[0015] The technical solution of this utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0016] like Figures 1-5As shown, the jig for processing electric bicycle parts provided in this embodiment includes a fixed base 1, a tensioning mechanism, a support arm 4, and a gripper 6. Specifically, a supporting frustum 2 is fixedly connected to the surface of the fixed base 1, and a rotating base 3 is rotatably connected to the supporting frustum 2. The tensioning mechanism is located at the axis of the rotating base 3 and is suitable for assembly into the shaft hole of the spoked wheel hub to tension and stabilize the spoked wheel. The spoked wheel refers to the spoked wheel commonly used in electric bicycle parts. The spoked wheel mainly includes the rim, hub, spokes, and other auxiliary mating parts, which will not be described in detail. The support arm... At least three support arms 4 are provided, all arranged around the axis of the supporting frustum 2. To ensure the stability of the spoke clamping, the distance between the support arms 4 can be set to be equal when arranged around the axis of the supporting frustum 2, so that several support arms 4 are evenly distributed on the periphery of the supporting frustum 2. The gripper 6 is provided on the support arm 4. The gripper 6 is driven by the telescopic rod 7 and slides along the extension direction of the support arm 4, so that the gripper 6 moves radially along the supporting frustum 2, which can adapt to wheels of different diameters. An auxiliary wheel 8 is provided on the side of the gripper 6 facing the supporting frustum 2.

[0017] In use, align the shaft hole on the spoke hub with the tensioning mechanism. Use the telescopic rod 7 to drive the gripper 6 away from the supporting platform 2. After the spoke is aligned with the tensioning mechanism, it is supported by the support arm 4. Then, activate the telescopic rod 7, which drives the gripper 6 closer to the supporting platform 2 until the auxiliary wheel 8 on the gripper 6 is in close contact with the outer ring of the spoke. At this point, the spoke is clamped and stabilized on the fixed base 1, and the worker can perform grinding on the spoke. When grinding is required on the part where the gripper 6 contacts the outer ring of the spoke, simply rotate the spoke. Under the action of the auxiliary wheel 8, the part where the gripper 6 contacts the outer ring of the spoke will be exposed, and then that part can be ground.

[0018] To address the issue of synchronous operation among multiple telescopic rods 7, when the telescopic rods 7 clamp the spokes, multiple telescopic rods 7 need to operate synchronously to ensure uniform clamping force and thus avoid spoke deformation or positioning deviation. Therefore, each telescopic rod 7 is equipped with an independent motor and controller, and their actions are coordinated through electronic signals. That is, a single main controller sends the same command signal to the drive modules of all telescopic rods 7, thereby ensuring that the moving ends of the telescopic rods 7 operate synchronously. This synchronous drive operation technology of the telescopic rods 7 is a conventional existing technology and will not be described in detail in this application.

[0019] Furthermore, such as Figure 4As shown, a rotating groove 9 is provided on the outer wall of the supporting frustum 2. Several balls 10 are equidistantly arranged in the rotating groove 9 around the central axis of the supporting frustum 2. A rotating ring 11 is rotatably connected to the rotating groove 9. The inner ring of the rotating ring 11 is in contact with the balls 10. When the rotating ring 11 rotates in the rotating groove 9, the friction between the rotating ring 11 and the supporting frustum 2 is reduced under the action of the balls 10. One end of the support arm 4 is connected to the rotating ring 11. When the worker performs grinding processing on the spoke wheel, the spoke wheel can be rotated to facilitate grinding processing on various positions of the spoke wheel.

[0020] A sliding groove 12 is provided at the end of the support arm 4 away from the support truncated cone 2 along its extension direction. A sliding plate 13 is slidably connected in the sliding groove 12. A gripper 6 is connected to the sliding plate 13. A telescopic rod 7 is connected to the support arm 4. The sliding plate 13 is connected to the movable end of the telescopic rod 7. When the telescopic rod 7 is activated, the movable end of the telescopic rod 7 drives the sliding plate 13 to move in the sliding groove 12, thereby driving the gripper 6 to move synchronously. The sliding groove 12 limits the sliding of the sliding plate 13, so that it can slide stably on the support arm 4.

[0021] The gripper 6 has two V-shaped rotating parts 14 on one side near the supporting truncated cone 2. Each rotating part 14 is rotatably connected to at least one auxiliary wheel 8. The V-shaped gripper 6 facilitates the clamping of the outer ring of the spoke wheel, preventing the spoke wheel from sliding along the axial direction of the supporting truncated cone 2, thus making the clamping of the spoke wheel more stable.

[0022] To prevent the rotating ring 11 from rotating with the worker when rotating the spokes, a toothed ring 15 is connected to the rotating ring 11. Several positioning grooves 16 are equidistantly arranged around its central axis on the toothed ring 15. A fixing block 17 is connected to the fixed base 1. A pin hole 18 is radially formed on the fixing block 17 along the toothed ring 15. A pin 19 is slidably connected to the pin hole 18. One end of the pin 19 near the toothed ring 15 is engaged with the positioning groove 16. In use, sliding the pin 19 inserts one end into the positioning groove 16, thus limiting the toothed ring 15 and locking the rotating ring 11, preventing it from rotating on the supporting frustum 2. The fixing block 17 has a fastening bolt 20 with one end connected to and the other end extending into the pin hole 18. Tightening the fastening bolt 20 adjusts the friction between the pin 19 and the pin hole 18, preventing the pin 19 from loosening due to vibration.

[0023] Furthermore, such as Figure 5 As shown, the tensioning mechanism includes a telescopic tube 21 and tensioning components, which are arranged equidistantly around the central axis of the supporting frustum 2; wherein, the tensioning components include a bracket 23, a track plate 22, a tensioning plate 24, and a connecting rod 25; The bracket 23 is connected to the supporting frustum 2, the track plate 22 is connected to the bracket 23 and is arranged radially along the supporting frustum 2, the track plate 22 is provided with a radial groove 29, one end of the tension plate 24 is provided with a protrusion 26 suitable for sliding in the radial groove 29, the tension plate 24 extends along the axial direction of the supporting frustum 2, the telescopic tube 21 is located at the axial direction of the supporting frustum 2, the connecting rod 25 is located between the telescopic tube 21 and the tension plate 24, and the two ends of the connecting rod 25 are rotatably connected to the telescopic tube 21 and the tension plate 24 respectively.

[0024] In use, the telescopic tube 21 is moved along the axis of the supporting frustum 2. Since the tension plate 24 is confined on the track plate 22, the tilt angle of the connecting rod 25 changes when the telescopic tube 21 moves linearly. This causes the tension plate 24 to move away from or closer to the axis of the supporting frustum 2. The distance between the tension plate 24 and the axis of the supporting frustum 2 is related to the direction of movement of the telescopic tube 21. When it is necessary to tighten the shaft hole on the spoke hub, simply move the telescopic tube 21, which in turn causes the tension plate 24 to move away from the axis of the supporting frustum 2 via the connecting rod 25 until the outer side of the tension plate 24 abuts against the inner wall of the shaft hole on the spoke hub, thus stabilizing the spoke wheel. When it is necessary to release the fixing of the spoke wheel, simply move the telescopic tube 21 in the opposite direction.

[0025] To facilitate linear movement of the telescopic tube 21, the tensioning mechanism described above also includes a drive motor 27 and a threaded rod 28. The telescopic tube 21 has a threaded hole 30 along its axis suitable for accommodating the threaded rod 28. One end of the threaded rod 28 is threaded into the threaded hole 30. The output end of the drive motor 27 is connected to the end of the threaded rod 28. The drive motor 27 outputs torque and drives the threaded rod 28 to rotate, thereby driving the telescopic rod 7 to move.

[0026] To facilitate the control of the drive motor 27 and the telescopic rod 7, a switch 31 is provided on the fixed base 1 to facilitate worker operation.

[0027] The foregoing description illustrates and describes preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein. Any modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A fixture for processing electric bicycle parts, characterized in that, include: A fixed base (1) has a supporting frustum (2) fixedly connected to its surface, and a rotating base (3) is rotatably connected to the supporting frustum (2). The tensioning mechanism is located on the axis of the rotating base (3) and can be installed in the shaft hole of the spoke hub to tension and stabilize the spokes. Support arms (4) are provided, at least three in number, and all of them are arranged around the axis of the support frustum (2); The gripper (6) is located on the support arm (4). The gripper (6) is driven by the telescopic rod (7) and slides along the extension direction of the support arm (4). The gripper (6) has an auxiliary wheel (8) on one side facing the support truncated cone (2).

2. The jig for processing electric bicycle parts according to claim 1, characterized in that: A rotating groove (9) is provided on the outer wall of the supporting frustum (2). A number of balls (10) are equidistantly arranged in the rotating groove (9) around the central axis of the supporting frustum (2). A rotating ring (11) is rotatably connected to the rotating groove (9). The inner ring of the rotating ring (11) is in contact with the balls (10). One end of the supporting arm (4) is connected to the rotating ring (11).

3. The jig for processing electric bicycle parts according to claim 1, characterized in that: The support arm (4) has a sliding groove (12) at one end away from the support truncated cone (2) along its extension direction. A sliding plate (13) is slidably connected in the sliding groove (12). The gripper (6) is connected to the sliding plate (13). The telescopic rod (7) is connected to the support arm (4). The sliding plate (13) is connected to the movable end of the telescopic rod (7).

4. The jig for processing electric bicycle parts according to claim 1, characterized in that: The gripper (6) has two V-shaped rotating parts (14) on one side near the supporting truncated cone (2), and each rotating part (14) is rotatably connected to at least one of the auxiliary wheels (8).

5. The jig for processing electric bicycle parts according to claim 2, characterized in that: The rotating ring (11) is connected to a toothed ring (15). The toothed ring (15) has several positioning grooves (16) equidistantly arranged around its central axis. The fixed base (1) is connected to a fixed block (17). The fixed block (17) has a pin hole (18) radially arranged along the toothed ring (15). A pin (19) is slidably connected to the pin hole (18). One end of the pin (19) near the toothed ring (15) is movably engaged with the positioning groove (16). The fixed block (17) is provided with a fastening bolt (20) with one end connected to the other end extending into the pin hole (18).

6. The jig for processing electric bicycle parts according to claim 1, characterized in that: The tensioning mechanism includes a telescopic tube (21) and tensioning components, which are a plurality of each other and are equidistantly arranged around the central axis of the supporting frustum (2).

7. The jig for processing electric bicycle parts according to claim 6, characterized in that: The tensioning component includes a bracket (23), a track plate (22), a tensioning plate (24), and a connecting rod (25); The bracket (23) is connected to the supporting frustum (2), the track plate (22) is connected to the bracket (23) and is arranged radially along the supporting frustum (2), the track plate (22) is provided with a radial groove (29), one end of the tension plate (24) is provided with a protrusion (26) suitable for sliding in the radial groove (29), the tension plate (24) extends along the axial direction of the supporting frustum (2), the telescopic tube (21) is located at the axial direction of the supporting frustum (2), the connecting rod (25) is located between the telescopic tube (21) and the tension plate (24), and the two ends of the connecting rod (25) are rotatably connected to the telescopic tube (21) and the tension plate (24) respectively.

8. The jig for processing electric bicycle parts according to claim 7, characterized in that: The tensioning mechanism also includes a drive motor (27) and a threaded rod (28). The telescopic tube (21) has a threaded hole (30) along its axis suitable for accommodating the threaded rod (28) for threaded connection. One end of the threaded rod (28) is threaded into the threaded hole (30), and the output end of the drive motor (27) is connected to the end of the threaded rod (28).

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