Positioning fixture for processing motorcycle engine mounting seat
Patent Information
- Application Number
- CN202521878599.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-09-02
AI Technical Summary
[0003]由于车架的安装空间有限,固定夹具又会占用车架内部空间,使得发动机的安装较为困难,难以完成定位,需要根据可用空间调整发动机的摆放,在有限空间下,使得操作难度提升,效率降低
[0007]The beneficial effects of this utility model are: by setting a positioning component, the left, right and bottom of the frame are completely fixed by using a clamp that fits with the frame tube, so that the frame can rotate with the mounting bracket, and the frame can be adjusted at multiple angles to fit the engine installation, reducing the difficulty of operation and improving work efficiency.
Smart Images

Figure CN224643375U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motorcycle technology, and in particular to a positioning fixture for machining a motorcycle engine mounting bracket. Background Technology
[0002] When installing an engine on a motorcycle, the frame is secured at the installation station. A crane is then used to move the engine to the frame position, where the operator can then proceed with the installation. Before installation, the operator needs to use clamps to completely secure the frame.
[0003] Due to the limited installation space on the chassis and the fact that the fixing clamps occupy the internal space of the chassis, the installation of the engine is quite difficult and it is hard to position it. The engine placement needs to be adjusted according to the available space, which increases the difficulty of operation and reduces efficiency in the limited space. Utility Model Content
[0004] The purpose of this application is to provide a positioning fixture for machining motorcycle engine mounting brackets, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this application provides the following technical solution: A positioning fixture for machining a motorcycle engine mounting bracket includes a mounting frame and a positioning assembly mounted on the mounting frame. The positioning assembly includes a functional compartment, a mating block, and two support platforms. The two support platforms are symmetrically fixed on the mounting frame. The functional compartment is fixedly mounted on the mounting frame, and the mating block is movably mounted above the functional compartment. The functional compartment is a hollow rectangular metal tube. A rubber block is attached to the top of each support platform. A pressure plate is attached to the top of each support platform. The two sides of the pressure plate are fixed to the sides of the two support platforms by bolts. A fixing plate is fixedly mounted to the top of the mating block by bolts. A motor is fixedly mounted on one side of the mounting frame. A rotating plate is fixedly mounted on the output end of the motor. A cylinder is fixedly mounted on the outer wall of one side of the rotating plate, and an arc-shaped plate is fixedly mounted on the output end of the cylinder.
[0006] Preferably, a fitting block is embedded in the inner wall of the functional compartment, and a spring is installed between the bottom of the fitting block and the bottom surface of the functional compartment. A mating block is positioned above the fitting block, and a connecting rod is fixedly installed between the mating block and the fitting block. Sliding grooves are formed through both outer walls of the functional compartment, and a through groove is formed at the end of the fitting block, the position of which corresponds to the sliding groove. A central rod passes through the through groove of the fitting block. A positioning block is fixedly installed at one end of the central rod, and a thread is formed at the other end. The positioning block is embedded inside the sliding groove, and a retaining ring is installed on the external thread of the threaded end of the central rod.
[0007] The beneficial effects of this utility model are: by setting a positioning component, the left, right and bottom of the frame are completely fixed by using a clamp that fits with the frame tube, so that the frame can rotate with the mounting bracket, and the frame can be adjusted at multiple angles to fit the engine installation, reducing the difficulty of operation and improving work efficiency. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the functional compartment in this utility model; Figure 3 This is a schematic diagram of the mounting structure of the mounting bracket and the vehicle frame in this utility model.
[0009] In the diagram: 1. Mounting bracket; 2. Support platform; 3. Pressure plate; 4. Functional compartment; 5. Slide groove; 6. Positioning block; 7. Mating block; 8. Connecting rod; 9. Fixing plate; 10. Motor; 11. Rotating plate; 12. Cylinder; 13. Arc plate; 14. Center rod; 15. Fitting block; 16. Spring; 17. Fixing ring. Detailed Implementation
[0010] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.
[0011] like Figure 1-3 The illustrated positioning fixture for machining a motorcycle engine mounting base includes a mounting frame 1 and a positioning assembly mounted on the mounting frame 1. The positioning assembly includes a functional compartment 4, a mating block 7, and two support platforms 2. The two support platforms 2 are symmetrically fixed on the mounting frame 1. The functional compartment 4 is fixedly mounted on the mounting frame 1, and the mating block 7 is movably mounted above the functional compartment 4. The functional compartment 4 is a hollow rectangular metal tube. A rubber block is attached to the top of the support platform 2. A pressure plate 3 is attached to the top of the two support platforms 2. The two sides of the pressure plate 3 are fixed to the sides of the two support platforms 2 by bolts. A fixing plate 9 is fixedly mounted to the top of the mating block 7 by bolts. A motor 10 is fixedly mounted on one side of the mounting frame 1. A rotating plate 11 is fixedly mounted on the output end of the motor 10. A cylinder 12 is fixedly mounted on the outer wall of one side of the rotating plate 11. An arc-shaped plate 13 is fixedly mounted on the output end of the cylinder 12.
[0012] A fitting block 15 is embedded in the inner wall of the functional compartment 4. A spring 16 is installed between the bottom of the fitting block 15 and the bottom surface of the functional compartment 4. A mating block 7 is positioned above the fitting block 15, and a connecting rod 8 is fixedly installed between the mating block 7 and the fitting block 15. Slide grooves 5 are formed through both outer walls of the functional compartment 4. A through groove is formed at the end of the fitting block 15, and the position of the through groove corresponds to that of the slide groove 5. A central rod 14 passes through the through groove of the fitting block 15. A positioning block 6 is fixedly installed at one end of the central rod 14, and a thread is formed at the other end. The positioning block 6 is embedded inside the slide groove 5. A retaining ring 17 is threaded onto the external thread of the threaded end of the central rod 14.
[0013] Example: The frame is placed inside the mounting bracket 1, with the bottom of the frame positioned above the support platform 2. A pressure plate 3 is used to hold down the steel pipe at the bottom of the frame. The pressure plate 3 is bolted to the support platform 2. When placing the frame, one side of the steel pipe is placed on the mating block 7. The mating block 7 is moved downward by the steel pipe, and the connecting rod 8 drives the fitting block 15 to slide inside the functional compartment 4. The spring 16 is compressed and deformed. After sliding into place, the center rod 14 is inserted through the through groove of the fitting block 15. The positioning block 6 is embedded inside the sliding groove 5. A fixing ring 17 is tightened at the other end of the center rod 14 to fix the center rod 14 to the functional compartment 4. The fixing plate 9 is bolted to the mating block 7. Then, the motor 10 is started, driving the rotating plate 11 to rotate. The cylinder 12 drives the arc plate 13 to press down on the steel pipe on the other side of the frame, providing downward pressure to the steel pipe of the frame. This allows the frame to be fixed on the mounting bracket 1. One end of the mounting bracket 1 is connected to the external workbench via a bearing. After the frame is fixed, it can rotate on the workbench in conjunction with the mounting bracket 1 to perform multi-angle installation and improve accuracy.
[0014] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.
Claims
1. A positioning fixture for machining a motorcycle engine mounting bracket, comprising a mounting frame (1) and a positioning assembly mounted on the mounting frame (1), characterized in that: The positioning component includes a functional compartment (4), a mating block (7), and two support platforms (2). The two support platforms (2) are symmetrically fixed on the mounting frame (1). The functional compartment (4) is fixedly installed on the mounting frame (1). The mating block (7) is movably installed above the functional compartment (4). The functional compartment (4) is a hollow rectangular metal tube. A rubber block is attached to the top of the support platform (2). A pressure plate (3) is attached to the top of the two support platforms (2). The two sides of the pressure plate (3) are fixed to the sides of the two support platforms (2) by bolts. A fixing plate (9) is fixed to the top of the mating block (7) by bolts.
2. The positioning fixture for machining a motorcycle engine mounting base according to claim 1, characterized in that: The inner wall of the functional compartment (4) is fitted with a fitting block (15), and a spring (16) is installed between the bottom of the fitting block (15) and the bottom surface of the functional compartment (4). The mating block (7) is located above the fitting block (15), and a connecting rod (8) is fixedly installed between the mating block (7) and the fitting block (15).
3. The positioning fixture for machining a motorcycle engine mounting base according to claim 2, characterized in that: The outer walls of both sides of the functional compartment (4) are provided with sliding grooves (5), and the end of the fitting block (15) is provided with a through groove. The position of the through groove corresponds to the sliding groove (5). A central rod (14) is inserted into the through groove of the fitting block (15).
4. The positioning fixture for machining a motorcycle engine mounting base according to claim 3, characterized in that: One end of the central rod (14) is fixedly installed with a positioning block (6), and the other end is threaded. The positioning block (6) is embedded in the slide groove (5), and a fixing ring (17) is installed on the external thread of the threaded end of the central rod (14).
5. The positioning fixture for machining a motorcycle engine mounting base according to claim 1, characterized in that: A motor (10) is fixedly installed on one side of the mounting bracket (1), a rotating plate (11) is fixedly installed on the output end of the motor (10), a cylinder (12) is fixedly installed on the outer wall of one side of the rotating plate (11), and an arc plate (13) is fixedly installed on the output end of the cylinder (12).