Grinding and fixing mechanism for balance weight fixing plate of motorcycle transmission
By designing a grinding and fixing mechanism for the motorcycle gearbox counterweight fixing plate with multiple pairs of horizontal and vertical plates forming a U-shaped opening, the problem of inaccurate clamping and positioning during the grinding process was solved, achieving a highly efficient grinding effect.
Patent Information
- Application Number
- CN202421200072.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The existing motorcycle gearbox counterweight fixing plate has problems with inaccurate clamping and positioning during the grinding process, resulting in grinding dead corners and low efficiency.
A grinding and fixing mechanism for the counterweight fixing plate of a motorcycle gearbox was designed. It uses multiple pairs of transverse and longitudinal plates to form a U-shaped opening, combined with a workpiece base, clamping ring groove and thin cylinder, to achieve simultaneous positioning and support of multiple fixing plates, ensuring that the grinding surface is fully exposed and reducing dead angles.
It improves grinding efficiency, reduces grinding dead angles, ensures complete exposure and efficient positioning of the grinding surface, and meets the needs of robotic arm grinding.
Smart Images
Figure CN222327833U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of motorcycle accessory production and processing equipment, relates to a transmission counterweight fixing plate, and in particular to a grinding and fixing mechanism for a motorcycle transmission counterweight fixing plate. Background Art
[0002] The main function of a motorcycle transmission is to change the speed and torque. The counterweight structure of the transmission can make the moving plate in the transmission move toward the fixed plate more stably, which is beneficial to control the distance between the driving wheel moving plate and the fixed plate. Since there is still a certain amount of margin and burrs on the transmission counterweight fixed plate after processing, it is necessary to use a grinding device to grind and polish it.
[0003] The traditional grinding process is to grind the fixed plate with a grinder by hand or by fixing it with a vise. However, with the demand for improved production efficiency, robotic arms are beginning to be used to grind the surface of the fixed plate. However, many clamping devices still occupy some area of the fixed plate during the clamping and positioning process, which will cause some dead angles after grinding, requiring manual additional grinding, so there is still room for improvement in the efficiency of the grinding operation. Utility Model Content
[0004] Aiming at the clamping and positioning problems existing in grinding the counterweight fixing plate, the utility model proposes a grinding and fixing mechanism for a motorcycle transmission counterweight fixing plate which has a reasonable design, a simple structure, a good positioning effect and is conducive to improving the motorized grinding efficiency.
[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: the utility model provides a grinding and fixing mechanism for a motorcycle transmission counterweight fixing plate, including a frame, a support assembly is arranged on the frame, the support assembly is used to support the transmission counterweight fixing plate, the support assembly includes a pair of transverse plates, the transverse plates are in a U-shaped structure and the U-shaped side is connected to the frame, the transverse plates are provided with at least two pairs of longitudinal plates distributed in a tic-tac-toe shape therewith, the longitudinal plates and the transverse plates are spaced apart from each other in the upper and lower parts and a workpiece base is arranged in the round-shaped opening formed by them, and the workpiece base The side surface is provided with two circles of clamping ring grooves which are distributed up and down and cooperate with the longitudinal plate and the transverse plate. The interior of the workpiece base is provided with a cylindrical cavity and a thin cylinder is provided at the bottom of the cylindrical cavity. The telescopic end of the thin cylinder faces upward and is provided with a support kit. The top center of the support kit is used to support the center hole of the transmission counterweight fixing plate. The top surface of the workpiece base is a curved surface connected with the front side of the transmission counterweight fixing plate. The curved surface is provided with a positioning groove which is embedded with the edge of the transmission counterweight fixing plate. The edge of the positioning groove is provided with a loading port which is radially connected with the transmission counterweight fixing plate.
[0006] Preferably, the longitudinal plate includes a main board segment, which is located below the transverse plate. L-shaped segments are provided at both ends of the main board segment, and the L-shaped opening of the L-shaped segment is plugged into the transverse plate. The main board segment is provided with an adjustment weight at a position corresponding to the L-shaped opening, and the top of the adjustment weight is abutted against the transverse plate.
[0007] Preferably, the support kit includes a core shaft connected to a thin cylinder, an umbrella frame is provided at the top of the core shaft, the umbrella frame includes an outer ring, an inner ring and ribs, the outer ring is slidably matched with the cavity wall of the cylindrical cavity, a support tube is nested on the inner ring, and an annular support shoulder is provided on the outer wall of the support tube.
[0008] Preferably, a square plate is provided at the bottom of the workpiece base, and a pair of supporting square tubes connected to the frame are provided at the bottom of the square plate.
[0009] Preferably, the positioning groove comprises an annular main groove section, on which three wing groove sections distributed in a circular array are arranged, and the depth of the wing groove sections gradually increases toward the center of the positioning groove.
[0010] Compared with the prior art, the advantages and positive effects of the utility model are:
[0011] 1. The utility model provides a grinding and fixing mechanism for a motorcycle transmission counterweight fixing plate, wherein a plurality of pairs of longitudinal plates can be distributed on the transverse plate at the same time, and the plurality of pairs of longitudinal plates form a circular opening for supporting a workpiece base, so that a plurality of transmission counterweight fixing plates can be installed in a row at the same time; the workpiece base provides a positioning groove and a support kit to cooperate with the transmission counterweight fixing plate, which not only has a good positioning effect, but also allows the surface to be ground of the transmission counterweight fixing plate to be fully exposed, greatly reducing the grinding dead angle, which is beneficial to improving the efficiency of motorized grinding, and the thin cylinder can push the support kit to timely eject the transmission counterweight fixing plate to facilitate the removal and placement of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0013] Figure 1 An axonometric diagram of a grinding and fixing mechanism for a motorcycle transmission counterweight fixing plate provided in an embodiment;
[0014] Figure 2 An axonometric view of a support assembly (without a frame and supporting square tube) provided in an embodiment;
[0015] Figure 3 A front view of a support assembly (without a frame and supporting square tubes) provided in an embodiment;
[0016] Figure 4 A cross-sectional view of a support assembly (without a frame and supporting square tube) provided in an embodiment in the CC direction;
[0017] In the above figures, 1, frame; 2, support assembly; 21, transverse plate; 22, longitudinal plate; 221, main board section; 222, L-shaped section; 223, adjustment weight; 23, workpiece base; 231, clamping ring groove; 232, cylindrical cavity; 233, curved surface; 234, positioning groove; 2341, main groove section; 2342, wing groove section; 235, loading port; 24, thin cylinder; 25, support kit; 251, core shaft; 252, umbrella frame; 2521, outer ring; 2522, inner ring; 2523, tendons; 253, support tube; 254, support shoulder; 3, square plate; 4, supporting square tube; 5, transmission counterweight fixing plate. DETAILED DESCRIPTION
[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear below, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.
[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.
[0020] Examples, such as Figures 1 to 4As shown, the utility model provides a grinding and fixing mechanism for a motorcycle transmission counterweight fixing plate, comprising a frame 1, on which a support assembly 2 is arranged, the support assembly 2 is used to support a transmission counterweight fixing plate 5, the support assembly 2 comprises a pair of transverse plates 21, the transverse plates 21 are in a U-shaped structure and the U-shaped side thereof is connected to the frame 1, at least two pairs of longitudinal plates 22 which are distributed in a tic-tac-toe pattern with the transverse plates 21 are arranged, the longitudinal plates 22 and the transverse plates 21 are spaced apart from each other up and down and a workpiece base 23 is arranged in the round-shaped opening formed therefrom, and the side surface of the workpiece base 23 is provided with two circles which are distributed up and down and are connected to the longitudinal plates 22 and The transverse plate 21 cooperates with the clamping ring groove 231, and a cylindrical cavity 232 is arranged inside the workpiece base 23 and a thin cylinder 24 is arranged at the bottom of the cylindrical cavity 232. The telescopic end of the thin cylinder 24 faces upward and is provided with a support kit 25. The top center of the support kit 25 is used to support the center hole of the transmission counterweight fixing plate 5. The top surface of the workpiece base 23 is a curved surface 233 connected with the front side of the transmission counterweight fixing plate 5. The curved surface 233 is provided with a positioning groove 234 that is embedded with the edge of the transmission counterweight fixing plate 5, and the edge of the positioning groove 234 is provided with a loading port radially connected with it.
[0021] Specifically, multiple pairs of longitudinal plates 22 can be distributed on the transverse plate 21 at the same time, and the multiple pairs of longitudinal plates 22 form a round mouth supporting the workpiece base 23. The round mouth is clamped and matched with the clamping ring groove 231 of the workpiece base 23, so multiple transmission counterweight fixing plates 5 can be installed in a row at the same time. The workpiece base 23 provides a positioning groove 234 and a support kit 25 to match the edge and center hole of the transmission counterweight fixing plate 5, and has a relatively smooth transition with the surface of the transmission counterweight fixing plate 5, which not only has a good positioning effect, but also allows the surface to be polished of the transmission counterweight fixing plate 5 to be fully exposed, greatly reducing the grinding dead angle, which is conducive to improving the efficiency of motorized grinding. The thin cylinder 24 is used to lift and adjust the support kit 25. The support kit 25 rises to an appropriate height to position the center hole of the workpiece and keep the transition between the workpiece surface and the curve of the workpiece base 23. Continuing to raise the support kit 25 can timely eject the transmission counterweight fixing plate 5 to facilitate the placement of the workpiece.
[0022] In order to facilitate the adjustment of the actual position of the longitudinal plate 22 on the transverse plate 21, the longitudinal plate 22 provided by the utility model includes a main plate section 221, the main plate section 221 is located below the transverse plate 21, L-shaped sections 222 are arranged at both ends of the main plate section 221, the L-shaped opening of the L-shaped section 222 is plugged into the transverse plate 21, and the main plate section 221 is provided with an adjustment weight 223 at a position corresponding to the L-shaped opening, and the top of the adjustment weight 223 is in contact with the transverse plate 21. In this way, the longitudinal plate 22 can maintain its vertical relationship with the transverse plate 21 through the L-shaped section 222, and the main plate section 221 can be moved forward and backward to make the L-shaped section 222 obtain different position points on the transverse plate 21, and the relative position of the longitudinal plate 22 and the transverse plate 21 is finally locked by the adjustment weight 223, thereby positioning and supporting the workpiece base 23.
[0023] In order to improve the positioning performance of the support kit 25, the support kit 25 provided by the utility model includes a core shaft 251 connected to the thin cylinder 24, and an umbrella frame 252 is arranged at the top of the core shaft 251. The umbrella frame 252 includes an outer ring 2521, an inner ring 2522 and ribs 2523. The outer ring 2521 slides with the cavity wall of the cylindrical cavity 232. The cavity wall of the cylindrical cavity 232 can be set to an upper and lower cylindrical surface. The diameter of the upper cylindrical surface is smaller than the diameter of the lower cylindrical surface, and the outer ring moves in the lifting direction of the lower cylindrical surface, so as to avoid excessive rising of the umbrella frame 252; further, a support tube 253 is nested on the inner ring 2522, and an annular support shoulder 254 is arranged on the outer wall of the support tube 253. In this way, the support kit 25 can be raised and lowered linearly along the inner wall of the cylindrical cavity 232, and the hollow part of its umbrella frame 252 can facilitate the temporary collection of burrs and debris after grinding by the cylindrical cavity 232, while the support tube 253 at the top directly corresponds to the center of the workpiece, and the support shoulder 254 supports the central bottom surface of the workpiece.
[0024] In order to improve the stability of the workpiece base 23, the utility model is provided with a square plate 3 at the bottom of the workpiece base 23, and a pair of supporting square tubes 4 connected to the frame 1 are provided at the bottom of the square plate 3, thereby assisting the longitudinal plate 22 and the transverse plate 21 to ensure the stability of the workpiece base 23.
[0025] In order to improve the positioning performance of the workpiece base 23, the utility model designs a positioning groove 234 thereof, wherein the positioning groove 234 includes an annular main groove section 2341, and three wing groove sections 2342 distributed in a circular array are arranged on the main groove section 2341, and the depth of the wing groove section 2342 gradually deepens toward the center direction of the positioning groove 234. The main groove section 2341 provides support for the main body of the transmission counterweight fixing plate 5, and the wing groove section 2342 provides support for the wing plate of the transmission counterweight fixing plate 5, while ensuring that the transmission counterweight fixing plate 5 and the curved surface 233 of the workpiece base 23 maintain a good transition, ensuring that the surface to be polished of the transmission counterweight fixing plate 5 is in the safe scanning of the sand plate, thereby ensuring a good polishing quality.
[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A grinding and fixing mechanism for a motorcycle transmission counterweight fixing plate, comprising a frame, on which a supporting assembly is arranged, and the supporting assembly is used to support the transmission counterweight fixing plate, characterized in that: The support assembly includes a pair of transverse plates, which are in a U-shaped structure and whose U-shaped sides are connected to the frame. The transverse plates are provided with at least two pairs of longitudinal plates distributed in a criss-cross pattern. The longitudinal plates and the transverse plates are spaced apart from each other in an upper and lower manner and a workpiece base is provided in the circular opening formed by them. The side surfaces of the workpiece base are provided with two circles of clamping ring grooves distributed up and down and cooperating with the longitudinal plates and the transverse plates. A cylindrical cavity is provided inside the workpiece base and a thin cylinder is provided at the bottom of the cylindrical cavity. The telescopic end of the thin cylinder faces upward and is provided with a support kit. The top center of the support kit is used to support the center hole of the transmission counterweight fixing plate. The top surface of the workpiece base is a curved surface connected to the front side of the transmission counterweight fixing plate. A positioning groove is provided on the curved surface to fit with the edge of the transmission counterweight fixing plate, and a loading port is provided on the edge of the positioning groove to radially connect with it.
2. A grinding and fixing mechanism for a motorcycle transmission counterweight fixing plate according to claim 1, characterized in that: The longitudinal plate includes a main board section, which is located below the transverse plate. L-shaped sections are provided at both ends of the main board section. The L-shaped opening of the L-shaped section is plugged into the transverse plate. The main board section is provided with an adjustment weight at a position corresponding to the L-shaped opening, and the top end of the adjustment weight is in contact with the transverse plate.
3. A grinding and fixing mechanism for a motorcycle transmission counterweight fixing plate according to claim 2, characterized in that: The support kit includes a core shaft connected to a thin cylinder, an umbrella frame is arranged at the top end of the core shaft, the umbrella frame includes an outer ring, an inner ring and ribs, the outer ring is slidably matched with the cavity wall of the cylindrical cavity, a support tube is nested on the inner ring, and an annular support shoulder is arranged on the outer wall of the support tube.
4. A grinding and fixing mechanism for a motorcycle transmission counterweight fixing plate according to claim 3, characterized in that: A square plate is arranged at the bottom of the workpiece base, and a pair of supporting square tubes connected to the frame are arranged at the bottom of the square plate.
5. A grinding and fixing mechanism for a motorcycle transmission counterweight fixing plate according to claim 1, characterized in that: The positioning groove comprises an annular main groove section, on which three wing groove sections distributed in a circular array are arranged, and the depth of the wing groove sections gradually increases toward the center of the positioning groove.