Quick clamping and positioning tool for processing motorcycle lower link plate
Patent Information
- Application Number
- CN202522587527.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-05
AI Technical Summary
The existing clamping and positioning fixtures for processing motorcycle lower clamps have fixed locating pin dimensions and spacing, which cannot adapt to different models of lower clamps. It is necessary to replace the entire set of fixtures or a large number of parts, which increases equipment costs and limits the scope of application.
A quick-clamping and positioning fixture was designed, which includes various types of positioning pins, support seats, position adjustment mechanisms, and clamping mechanisms. Through the detachable positioning pins and position adjustment mechanisms, it can achieve precise positioning and quick switching of lower connecting plates of different sizes, making it more widely applicable.
It enables precise positioning and rapid switching between different models of lower connecting plates, reducing equipment replacement costs and improving processing efficiency and applicability.
Smart Images
Figure CN224927804U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motorcycle lower arm plate processing technology, and in particular to a quick clamping and positioning fixture for processing motorcycle lower arm plates. Background Technology
[0002] The motorcycle lower link plate is a core load-bearing component of the motorcycle steering system, used to connect the front fork, wheel hub and frame. Its machining accuracy directly affects the vehicle's steering stability and driving safety. Precise clamping and positioning are required to ensure the machining quality of key features such as holes and end faces.
[0003] Existing clamping and positioning fixtures for motorcycle lower arm plate processing are mostly fixed structure designs with fixed locating pin sizes and spacing. They can only match the locating hole sizes and hole spacing of specific lower arm plate models, limiting their application. When dealing with lower arm plates of different engine displacements and vehicle models (with significant differences in locating hole diameters and hole layouts), it is necessary to replace the entire fixture or a large number of parts, increasing equipment investment costs. Therefore, there is an urgent need to develop a quick-clamping and positioning fixture for motorcycle lower arm plate processing that is convenient for clamping and positioning lower arm plates, and features detachable locating pins of multiple models, along with a position adjustment mechanism that can be adjusted forward, backward, left, and right. This would allow for precise adaptation and rapid switching of locating holes for lower arm plate of different sizes, and broaden the applicability to overcome the shortcomings of current practical applications and meet current needs. Utility Model Content
[0004] The purpose of this invention is to provide a quick clamping and positioning fixture for machining the lower connecting plate of a motorcycle, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A quick-clamping and positioning fixture for machining motorcycle lower frame plates includes a clamping table, support seats, positioning pins, a position adjustment mechanism, and a clamping mechanism. The positioning pins are available in various models with diameters ranging from 10-30mm. Two support seats are provided, each detachably mounted with one positioning pin. One support seat is fixed to the clamping table, and the other is fixed to the top of the position adjustment mechanism, which is installed within the clamping table. The position adjustment mechanism includes: a front-rear adjustment plate, a left-right adjustment plate, a second screw, a first nut, and a third screw. The left and right adjustment plates are equipped with a support base and two third screws that penetrate the left and right adjustment plates. Each third screw is equipped with a second nut located on the lower side of the left and right adjustment plates. The left and right adjustment plates are provided with second sliding grooves for the third screws to move back and forth. Two second screws inserted into the clamping table are fixed on the front and rear sides of the left and right adjustment plates respectively. The clamping table is provided with first sliding grooves for the second screws to move left and right. Each second screw is equipped with a first nut. The clamping mechanism is installed on the clamping table.
[0006] Preferably, the bottom of the positioning pin is fixed with a first screw, and the support base is provided with a threaded hole for screwing in the first screw.
[0007] Preferably, the clamping mechanism includes an electric telescopic rod and a clamping plate, wherein the electric telescopic rod is fixed to the upper end of the clamping platform, and the telescopic end of the electric telescopic rod is fixed to the clamping plate.
[0008] Preferably, an elastic protective pad is fixed to the lower side of the clamping plate.
[0009] The beneficial effects of this utility model are as follows: This quick-clamping and positioning fixture for processing motorcycle lower connecting plates allows for precise positioning by first inserting the two positioning holes of the lower connecting plate into the two positioning pins. Then, the electric telescopic rod drives the clamping plate and elastic protective pad to move downwards, clamping the lower connecting plate onto the clamping table. Furthermore, by using various positioning pins of different diameters and the detachable connection between the positioning pins and the support base, different positioning pins can be replaced according to different sizes of lower connecting plates. Loosening the second nut and moving the front and rear adjusting plate back and forth on the left and right adjusting plate moves the support base and positioning pins on the front and rear adjusting plate, adjusting the position of the positioning pins in the front-rear direction. Loosening the first nut and moving the left and right adjusting plate left and right moves the front and rear adjusting plate, support base, and positioning pins left and right, adjusting the left-right position of the positioning pins, thereby adjusting the relative position between the two positioning pins to match the positioning hole positions on lower connecting plates of different sizes. In summary, this utility model provides convenient positioning and clamping of the lower connecting plate, and the combination of multiple models of detachable positioning pins with a position adjustment mechanism that can be adjusted forward, backward, left, and right allows for precise adaptation and quick switching of positioning holes for lower connecting plates of different sizes, thus broadening its applicability. Attached Figure Description
[0010] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0011] Figure 2 This is a schematic diagram of the usage state of this utility model. Figure 1 .
[0012] Figure 3 This is a schematic diagram of the usage state of this utility model. Figure 2 .
[0013] Figure 4 This is a schematic diagram of part of the structure of this utility model. Figure 1 .
[0014] Figure 5 This is a schematic diagram of part of the structure of this utility model. Figure 2 .
[0015] Figure 6 This is a schematic diagram of part of the structure of this utility model. Figure 3 .
[0016] Legend: 1. Mounting platform; 101. First slide groove; 2. Support base; 201. Threaded hole; 3. Positioning pin; 301. First screw; 4. Position adjustment mechanism; 401. Front and rear adjustment plate; 402. Left and right adjustment plate; 4021. Second slide groove; 403. Second screw; 404. First nut; 405. Third screw; 406. Second nut; 5. Clamping mechanism; 501. Electric telescopic rod; 502. Clamping plate; 5021. Elastic protective pad. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0018] Specific implementation examples are given below.
[0019] See Figures 1-6In this embodiment of the invention, a quick-clamping and positioning fixture for processing motorcycle lower connecting plates includes a clamping table 1, a support base 2, a positioning pin 3, a position adjustment mechanism 4, and a clamping mechanism 5. The positioning pin 3 is used to position the lower connecting plate. The positioning pin 3 comes in various models with diameters ranging from 10-30mm to accommodate lower connecting plates of different sizes. There are two support bases 2, each of which can be detachably fitted with one positioning pin 3. One support base 2 is fixed to the clamping table 1. Another support base 2 is fixed to the top of the position adjustment mechanism 4, which is installed inside the clamping table 1. The position adjustment mechanism 4 includes: a front and rear adjustment plate 401, a left and right adjustment plate 402, a second screw 403, a first nut 404, a third screw 405, and a second nut 406. A support base 2 is fixed on the front and rear adjustment plate 401, and two third screws 405 penetrating the left and right adjustment plates 402 are fixed to the bottom of the front and rear adjustment plate 401. A second nut 406 is installed on each of the third screws 405. The second nut 406 is located on the lower side of the left and right adjusting plates 402. The left and right adjusting plates 402 are provided with a second sliding groove 4021 for the third screw 405 to move back and forth. During adjustment, the second nut 406 is loosened first, and then the front and rear adjusting plates 401 are moved back and forth on the left and right adjusting plates 402, thereby driving the support seat 2 and the positioning pin 3 on the front and rear adjusting plates 401 to move and adjust the position of the positioning pin 3. Two second screws 403 inserted into the clamping table 1 are fixed on the front and rear sides of the left and right adjusting plates 402 respectively. The clamping table 1 is provided with a second sliding groove 4021 for the third screw 405 to move back and forth. The second screw 403 moves left and right in the first slide groove 101. Each second screw 403 is equipped with a first nut 404. When the first nut 404 is tightly pressed against the inner wall of the clamping table 1, the left and right adjustment plate 402 cannot move. During adjustment, the first nut 404 is loosened, and then the left and right adjustment plate 402 is moved left and right. The left and right adjustment plate 402 drives the front and rear adjustment plate 401, the support seat 2, and the positioning pin 3 to move left and right, thereby adjusting the left and right position of the positioning pin 3. The clamping mechanism 5 is installed on the clamping table 1 and is used to clamp the lower connecting plate.
[0020] The maximum adjustment distance of the positioning pin 3 on the support base 2 in terms of forward and backward movement and left and right movement is 5cm. The clamping plate 502 is a rectangular plate with a size of 10*20cm. Since there is a positioning pin fixed on the clamping table, the installation position of the positioning hole at one end of the lower connecting plate is fixed when it is installed. The maximum adjustment distance of the positioning pin 3 on the support base 2 in terms of forward and backward movement and left and right movement is 5cm. This adjustment distance is much smaller than the size of the clamping plate 502. Therefore, no matter how it is adjusted, most of the area of the lower connecting plate will be located below the clamping plate 502, so that the clamping plate 502 can effectively clamp the lower connecting plate.
[0021] When adjusting the position of the positioning pin 3 on the support base 2, only a few nuts need to be adjusted. Since different lower connecting plates are often produced in batches, and each batch takes a certain amount of time to produce, the position of the positioning pin 3 on the support base 2 will not be adjusted too frequently. Moreover, the position can be adjusted with just a few nuts, which is very inexpensive and suitable for small factories to reduce equipment costs.
[0022] The bottom of the positioning pin 3 is fixed with a first screw 301, and the support base 2 is provided with a threaded hole 201 for screwing in the first screw 301. The first screw 301 facilitates the replacement of the positioning pin 3 on the support base 2.
[0023] The clamping mechanism 5 includes an electric telescopic rod 501 and a clamping plate 502. The electric telescopic rod 501 is fixed to the upper end of the clamping platform 1. The telescopic end of the electric telescopic rod 501 is fixed to the clamping plate 502. An elastic protective pad 5021 is fixed to the lower side of the clamping plate 502. During clamping, the surface of the lower connecting plate is protected by the elastic protective pad 5021 to prevent pinching. The electric telescopic rod 501 drives the clamping plate 502 and the elastic protective pad 5021 to move downward. The clamping plate 502 and the elastic protective pad 5021 clamp the lower connecting plate onto the clamping platform 1. The electric telescopic rod 501 is controlled by an external PLC system (not shown).
[0024] Working principle: This quick-clamping and positioning fixture for processing motorcycle lower connecting plates works by first inserting the two positioning holes of the lower connecting plate into the two positioning pins 3 for precise positioning. Then, the electric telescopic rod 501 drives the clamping plate 502 and the elastic protective pad 5021 to move downwards, clamping the lower connecting plate onto the clamping table 1. Furthermore, by using various positioning pins 3 of different diameters and the detachable connection between the positioning pins 3 and the support base 2, different positioning pins 3 can be replaced according to different sizes of lower connecting plates. The second nut 4 is also included. 06 Loosen the screws, then move the front and rear adjusting plate 401 back and forth on the left and right adjusting plate 402, thereby moving the support seat 2 and the positioning pin 3 on the front and rear adjusting plate 401. Adjust the position of the positioning pin 3 in the front and rear direction. Loosen the first nut 404, then move the left and right adjusting plate 402 left and right. Through the left and right adjusting plate 402, the front and rear adjusting plate 401, the support seat 2, and the positioning pin 3 move left and right, thereby adjusting the position of the positioning pin 3 in the left and right direction, thereby adjusting the relative position between the two positioning pins 3 so as to match the positioning hole position on the lower connecting plate of different sizes.
[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A quick-clamping and positioning fixture for machining the lower connecting plate of a motorcycle, characterized in that, The assembly includes a clamping table (1), a support base (2), a positioning pin (3), a position adjustment mechanism (4), and a clamping mechanism (5). The positioning pin (3) comes in various models with diameters ranging from 10 to 30 mm. There are two support bases (2), each of which can be detachably fitted with a positioning pin (3). One support base (2) is fixed to the clamping table (1), and the other is fixed to the top of the position adjustment mechanism (4). The position adjustment mechanism (4) is installed inside the clamping table (1) and includes: a front and rear adjustment plate (401), a left and right adjustment plate (402), a second screw (403), a first nut (404), a third screw (405), and a second nut (406). The front and rear adjustment plate (401) has... A support base (2) is fixed. Two third screws (405) that penetrate the left and right adjustment plates (402) are fixed at the bottom of the front and rear adjustment plates (401). A second nut (406) is installed on each of the third screws (405). The second nut (406) is located on the lower side of the left and right adjustment plates (402). A second slide groove (4021) for the third screws (405) to move back and forth is provided on the left and right adjustment plates (402). Two second screws (403) that are inserted into the clamping table (1) are fixed on the front and rear sides of the left and right adjustment plates (402). A first slide groove (101) for the second screws (403) to move left and right is provided in the clamping table (1). A first nut (404) is installed on each of the second screws (403). The clamping mechanism (5) is installed on the clamping table (1).
2. The quick-clamping and positioning fixture for machining motorcycle lower connecting plates according to claim 1, characterized in that, The bottom of the positioning pin (3) is fixed with a first screw (301), and the support base (2) is provided with a threaded hole (201) for screwing in the first screw (301).
3. The quick-clamping and positioning fixture for machining motorcycle lower connecting plates according to claim 1, characterized in that, The clamping mechanism (5) includes an electric telescopic rod (501) and a clamping plate (502). The electric telescopic rod (501) is fixed to the upper end of the clamping table (1), and the telescopic end of the electric telescopic rod (501) is fixed to the clamping plate (502).
4. The quick-clamping and positioning fixture for machining motorcycle lower connecting plates according to claim 3, characterized in that, An elastic protective pad (5021) is fixed to the lower side of the clamp (502).