Bicycle machining clamp
By designing a bicycle processing fixture that combines the base, sliding seat, inner support structure and profiling block, the problem that traditional fixtures are prone to deformation and damage to the workpiece when clamping thin walls or carbon fiber materials is solved, and the effect of lossless clamping is achieved.
Patent Information
- Application Number
- CN202421767347.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-24
AI Technical Summary
Traditional bicycle processing fixtures are prone to deformation and damage to the workpiece when clamping thin-walled or carbon fiber materials.
A bicycle processing fixture is designed, adopting a combined structure of a base, sliding seat, inner support structure and pronunciation block, and the damage-free clamping is achieved through the cooperation of the wedge block and the adjustment part.
While providing sufficient clamping force, the clamp avoids deformation and damage of the workpiece, achieving the effect of lossless clamping.
Smart Images
Figure CN222986741U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of jigs, and particularly relates to a bicycle processing jig. Background Art
[0002] A bicycle processing jig is a tool specifically designed to fix bicycle parts for precise processing. These jigs are crucial in the manufacturing process as they ensure the stability and precise alignment of parts during operations such as milling, drilling, or grinding.
[0003] Carbon fiber bicycles are renowned for their light weight, high strength, and excellent rigidity. Such bicycles are made of carbon fiber reinforced plastic (CFRP) materials, providing superior performance and durability. Bicycles with carbon fiber frames can absorb road vibrations during riding, offering a smooth driving experience. At the same time, their lightweight characteristics also make acceleration and climbing easier. In addition, the customizability and design flexibility of carbon fiber bicycles have made them widely popular in the professional racing and high-end leisure bicycle markets, becoming the first choice for riders pursuing speed, performance, and advanced technology.
[0004] In related technologies, traditional bicycle processing jigs generally clamp workpieces by using a screw-locked profiling press block. With the application of carbon fiber, the wall thickness of parts on bicycles has become thinner and thinner. During the clamping process of workpieces using traditional jigs, it is easy to cause deformation and damage to the workpieces. Summary of the Utility Model
[0005] The main purpose of the utility model is to propose a bicycle processing jig, aiming to provide a bicycle processing jig that can provide sufficient clamping force while not easily damaging the workpiece.
[0006] To achieve the above purpose, the bicycle processing jig proposed by the utility model includes:
[0007] A base, and the base is provided with two positioning posts;
[0008] A sliding seat, one end of the sliding seat is arranged on the base, and the other end is provided with a pressing plate facing the base. The sliding seat further includes a wedge block movably arranged. One end of the wedge block close to the pressing plate is provided with an adjusting part, and a part of the structure of the adjusting part is exposed outside the pressing plate. The adjusting part is used to adjust the up and down movement of the wedge block. The wedge block is formed with a first guiding inclined surface, and the sliding seat is formed with a second guiding inclined surface facing one of the positioning posts. The first guiding inclined surface and the second guiding inclined surface are in contact with each other;
[0009] An inner support structure, the inner support structure is slidably limited on the sliding seat and is in contact with the side of the wedge block facing away from the first guiding inclined surface; and
[0010] The profiling block is provided with two mounting holes, each of the mounting holes is sleeved on one of the positioning posts, the upper part of the profiling block abuts against the pressing plate, a limiting groove is arranged on one side of the profiling block, and the inner support structure abuts against one side of the limiting groove.
[0011] In one embodiment, the wedge block is provided with an adjusting hole facing the pressing plate, the adjusting hole is formed with an internal thread, the adjusting part is a bolt, the bolt is screwed with the adjusting hole, the pressing plate is formed with an avoidance hole relative to the adjusting hole, and the end of the bolt is exposed in the avoidance hole.
[0012] In one embodiment, the sliding seat is provided with a connecting hole relative to the adjusting hole, the connecting hole communicates with the adjusting hole and the avoidance hole, the connecting hole is formed with an annular step groove, and the end abuts against and is limited by the annular step groove.
[0013] In one embodiment, the adjusting hole, the avoidance hole, the connecting hole and the bolt are all inclined towards the first guiding inclined surface.
[0014] In one embodiment, the inner support structure includes a sliding plate and a supporting plate connected to each other. The sliding seat is provided with a guide rail, the guide rail extends along the connecting line direction of the two positioning posts, the sliding plate is slidably limited on the guide rail, one side of the supporting plate abuts against the wedge block, and the other side abuts against the profiling block.
[0015] In one embodiment, the profiling block is provided with a profiling surface on the side facing the base, and the profiling surface is used for contacting the workpiece.
[0016] In one embodiment, the pressing plate is provided with two pressing parts abutting against the profiling block, and each pressing part includes an elastic part and a pressing block, and two ends of the elastic part are respectively connected to the pressing plate and the pressing block.
[0017] In one embodiment, the pressing plate is provided with two annular grooves facing the pressing block, and at least part of the structure of the elastic part is arranged in the annular grooves.
[0018] In one embodiment, the elastic part is a spring.
[0019] In one embodiment, the positioning post is detachably arranged on the base, and the positioning post is formed with a hollow hole.
[0020] In the technical solution of the present utility model, a bicycle processing fixture is proposed. The bicycle processing fixture includes a base, a sliding seat, an inner support structure, and a profiling block. The sliding seat is installed on the base, and a pressing plate facing the base is provided at one end away from the base. The sliding seat further includes a wedge block movably arranged. The wedge block forms a first guiding inclined surface, and the sliding seat body is provided with a second guiding inclined surface. The first guiding inclined surface and the second guiding inclined surface are in contact with each other to achieve guiding. The side of the wedge block facing away from the first guiding inclined surface is in contact with the inner support structure and can push the inner support structure out or retract it. An adjusting portion is provided at one end of the wedge block close to the pressing plate. When clamping needs to be achieved, by adjusting the adjusting portion, the adjusting portion connected to the wedge block can drive the wedge block to move towards the pressing plate. At this time, the contact between the first guiding inclined surface and the second guiding inclined surface causes the wedge block to retreat and push the inner support structure to expand outwards. One side of the inner support structure will be in close contact with the inner wall of the limiting groove of the profiling block to prevent the profiling block from moving. At this time, the profiling block is stressed in the horizontal direction, and in the vertical direction, that is, the direction of the force on the workpiece, there is only the force of the pressing plate pressing on the profiling block, and the stress is small, so as to avoid deformation and damage of the workpiece during the clamping process of the processed workpiece and achieve non-destructive clamping. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.
[0022] Figure 1 It is a schematic structural diagram of an embodiment of the bicycle processing fixture provided by the present utility model;
[0023] Figure 2 It is a cross-sectional view of the bicycle processing fixture;
[0024] Figure 3 For Figure 2 The partial enlarged view at A in
[0025] Figure 4 It is a schematic diagram of the internal structure of the bicycle processing fixture;
[0026] Figure 5 It is a cross-sectional view of the bicycle processing fixture from another angle.
[0027] Explanation of the reference numerals in the drawings:
[0028] 1000. Bicycle processing fixture; 1. Base; 11. Positioning column; 111. Hollow hole; 2. Sliding seat; 21. Annular step groove; 22. Guide rail; 23. Second guiding inclined surface; 3. Wedge block; 31. Adjusting hole; 32. First guiding inclined surface; 4. Bolt; 41. Screw rod; 42. End head; 5. Pressing plate; 51. Avoidance hole; 52. Pressing block; 521. Spring; 53. Ring groove; 6. Inner support structure; 61. Sliding plate; 62. Supporting plate; 7. Profiling block; 71. Profiling surface.
[0029] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments
[0030] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0031] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0032] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0033] Bicycle processing fixtures are tools specifically designed to hold bicycle components in place for precise machining. These fixtures are crucial in the manufacturing process as they ensure the stability and accurate alignment of components during operations such as milling, drilling, or grinding.
[0034] Carbon fiber bicycles are known for their light weight, high strength, and excellent rigidity. These bicycles are made of carbon fiber reinforced plastic (CFRP) materials, providing excellent performance and durability. Bicycles with carbon fiber frames can absorb road vibrations during riding, providing a smooth riding experience. At the same time, their lightweight characteristics also make acceleration and climbing easier. In addition, the customizability and design flexibility of carbon fiber bicycles have made them widely popular in the professional racing and high-end leisure bicycle markets, becoming the first choice for riders who pursue speed, performance, and advanced technology.
[0035] In related technologies, traditional bicycle processing jigs generally use the method of screwing and locking profiling blocks to clamp workpieces. With the application of carbon fiber, the wall thickness of components on bicycles has become thinner and thinner. During the clamping process of processing workpieces with traditional jigs, it is easy to cause deformation and damage to the workpieces.
[0036] The jig must adapt to these requirements, providing sufficient clamping force without damaging components made of materials such as thin walls or carbon fiber. Jigs for bicycle processing usually adopt precision engineering and user-friendly designs to achieve efficient production and improve the quality of the final product.
[0037] To solve the above problems, the present utility model proposes a bicycle processing jig, aiming to provide a bicycle processing jig that can ensure sufficient clamping force while not easily damaging the workpiece. Figures 1 to 5 It is a schematic structural diagram of an embodiment provided by the bicycle processing jig of the present utility model.
[0038] Please refer to Figures 1 to 5 , the present utility model proposes a bicycle processing jig 1000, including a base 1, a sliding seat, an inner support structure 6, and a profiling block 7. The base 1 is provided with two positioning columns 11. One end of the sliding seat 2 is arranged on the base 1, and the other end is provided with a pressing plate 5 facing the base 1. The sliding seat 2 further includes a wedge block 3 movably arranged. One end of the wedge block 3 close to the pressing plate 5 is provided with an adjusting part, and part of the structure of the adjusting part is exposed outside the pressing plate 5. The adjusting part is used to adjust the up and down of the wedge block 3. The wedge block 3 is formed with a first guiding inclined surface 32, and the sliding seat 2 is formed with a second guiding inclined surface 23 facing one of the positioning columns 11. The first guiding inclined surface 32 and the second guiding inclined surface 23 are in contact with each other. The inner support structure 6 is slidably limited in the sliding seat 2 and is in contact with the side of the wedge block 3 facing away from the first guiding inclined surface. The profiling block 7 is provided with two mounting holes, and each mounting hole is sleeved on a positioning column 11. The upper part of the profiling block 7 is in contact with the pressing plate 5. One side of the profiling block 7 is provided with a limiting groove, and the inner support structure 6 is in contact with one side of the limiting groove.
[0039] In the technical solution of the present utility model, a bicycle processing fixture 1000 is proposed. The bicycle processing fixture 1000 includes a base 1, a sliding seat 2, an inner support structure 6, and a profiling block 7. The sliding seat 2 is installed on the base 1. One end of the sliding seat 2 away from the base 1 is provided with a pressing plate 5 facing the base 1. The sliding seat 2 further includes a wedge block 3 movably arranged. The wedge block 3 is formed with a first guiding inclined surface 32, and the sliding seat 2 body is provided with a second guiding inclined surface 23. The first guiding inclined surface 32 and the second guiding inclined surface 23 are in contact with each other to achieve guiding. One side of the wedge block 3 facing away from the first guiding inclined surface 32 is in contact with the inner support structure 6 and can push the inner support structure 6 out or retract it. One end of the wedge block 3 close to the pressing plate 5 is provided with an adjusting part. When clamping needs to be achieved, by adjusting the adjusting part, the adjusting part is connected to the wedge block 3 and can drive the wedge block 3 to move towards the pressing plate 5. At this time, the contact between the first guiding inclined surface 32 and the second guiding inclined surface 23 causes the wedge block 3 to retreat and push the inner support structure 6 to expand outwards. One side of the inner support structure 6 will be in close contact with the inner wall of the limiting groove of the profiling block 7 to prevent the profiling block 7 from moving. At this time, the profiling block 7 is stressed in the horizontal direction, and in the vertical direction, that is, in the direction of the force on the workpiece, there is only the force of the pressing plate 5 pressing against the profiling block 7, and the force is small, so as to avoid deformation and damage of the workpiece during the clamping process of the processed workpiece, and realize non-destructive clamping.
[0040] It should be noted that the wedge block 3 is adjusted through the adjusting part. The adjusting part can be driven by pulling and pushing the pull rod, or can also be driven by a screw rod. By screwing, the adjustment of the wedge block 3 is realized. The present utility model does not limit this. In an embodiment of the present utility model, the wedge block 3 is provided with an adjusting hole 31 facing the pressing plate 5. Specifically, please further refer to Figure 2 , the inner wall of the adjusting hole 31 is formed with internal threads, the adjusting part is a bolt 4, and the bolt 4 is screwed with the wedge block 3 through the adjusting hole 31. The pressing plate 5 forms an avoidance hole 51 relative to the adjusting hole 31, and the end 42 of the bolt 4 is exposed in the avoidance hole 51. When locking needs to be achieved, only the end 42 of the bolt 4 needs to be screwed. The end 42 drives the screw 41 to rotate. Since the end 42 of the bolt 4 is blocked by the pressing plate 5, the bolt 4 can only rotate but cannot move during the screwing process. The wedge block 3 will move upwards accordingly due to the rotation of the bolt 4. And because one side of the wedge block 3 is formed with a first guiding inclined surface 32, and the sliding seat 2 is formed with a second guiding inclined surface 23 in contact with it, the wedge block 3 will move horizontally during the upward movement, so as to push the inner support structure 6 to press against the inner wall of the limiting groove of the profiling block 7.
[0041] Furthermore, the wedge block 3 will fall under the action of gravity. To prevent the wedge block 3 from falling and driving the bolt 4 to move downwards together, the sliding seat 2 is provided with a connection hole relative to the adjusting hole 31. The connection hole communicates the adjusting hole 31 and the avoidance hole 51, and the connection hole is formed with an annular step groove 21. Specifically, please further refer to Figure 2, the lower bottom of the end 42 abuts against the bottom wall of the annular step groove 21 to achieve limit. With such a setting, the bolt 4 can be prevented from falling. In addition, since the bolt 4 and the wedge block 3 are fixed by screwing, the self-locking of the wedge block 3 can be realized.
[0042] Considering that there is also a horizontal movement of the wedge block 3 during the upward movement of the bolt 4 driving the wedge block 3, if the bolt 4 is vertically arranged, larger-sized connection holes, avoidance holes 51 and adjustment holes 31 need to be opened, which will lead to significant assembly looseness problems. In view of this, in the technical solution of the present utility model, the adjustment hole 31, the avoidance hole 51, the connection hole and the bolt 4 are all inclined towards the first guiding inclined surface 32 and the inclination angles are kept the same as the inclination angle of the first guiding inclined surface 32. In this way, when the bolt 4 is screwed, the radial force on the bolt 4 can be reduced.
[0043] In the technical solution of the present utility model, the inner support structure 6 includes a sliding plate 61 and a support plate 62 which are connected. Specifically, please further refer to Figure 4 , the sliding plate 61 and the support plate 62 are integrally formed structures, and the whole is in an L shape. The sliding seat 2 is provided with a guide rail 22. One side of the sliding plate 61 is slidably limited in the guide rail 22. The guide rail 22 extends along the connection line direction of the two positioning columns 11. One side of the support plate 62 abuts against the wedge block 3, and the other side abuts against the profiling block 7, so as to transmit the thrust of the wedge block 3 to the inner side wall of the limit groove, and keep the profiling block 7 fixed reliably through the horizontal thrust, and also take into account not generating a large acting force in the vertical direction so as to avoid clamping damage.
[0044] The profiling block 7 is provided with a profiling surface 71 facing the base 1. The profiling surface 71 can provide more stable and accurate clamping, reduce the vibration and displacement of the workpiece during the processing process, thereby improving the processing accuracy and repeatability. Secondly, the profiling fixture can realize rapid positioning and clamping of the workpiece, improve the production efficiency and shorten the setup time. In addition, this design can usually reduce the number of support points of the workpiece and avoid leaving indentations or damages on the workpiece surface, especially suitable for the processing of complex curved surfaces or soft materials. Finally, the use of the profiling fixture can reduce the dependence on operating skills, reduce human errors, and make the processing process more standardized and automated.
[0045] To provide a downward clamping force, the pressing plate 5 is provided with two pressing parts abutting against the profiling block 7. Specifically, please further refer to Figure 3 and Figure 4, the crimping portion includes an elastic member and a pressing block 52. The pressing plate 5 is provided with two annular grooves 53 facing the pressing block 52. The two ends of the elastic member are respectively connected to the bottom of the annular groove 53 and the pressing block 52. It should be noted that the elastic member can be an elastic block or a spring 521, and the present invention does not limit this. In an embodiment of the present invention, the elastic member adopts a spring 521. When the pressing block 52 abuts against the profiling block 7, soft contact is achieved due to the elastic force of the elastic member, and the spring 521 can be compressed, thereby preventing the profiling block 7 from pinching the workpiece.
[0046] In an embodiment of the present invention, the positioning post 11 is detachably provided on the base 1, and the positioning post 11 is further provided with a hollow hole 111. Specifically, please further refer to Figure 4 , the hollowing can reduce the weight of the fixture, lower the material cost and improve the portability of the fixture. Secondly, the hollow design helps to improve the rigidity and stability of the fixture because it can reduce the local concentration of materials and distribute the force more evenly.
[0047] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.
Claims
1. A bicycle processing fixture (1000), characterized in that: include: A base (1), wherein the base (1) is provided with two positioning columns (11); A sliding seat (2), one end of the sliding seat (2) is arranged on the base (1), and the other end is provided with a pressure plate (5) arranged toward the base (1), the sliding seat (2) also includes a movably arranged wedge block (3), one end of the wedge block (3) close to the pressure plate (5) is provided with an adjustment portion, a part of the structure of the adjustment portion is exposed on the pressure plate (5), and the adjustment portion is used to adjust the up and down of the wedge block (3), the wedge block (3) is formed with a first guiding inclined surface (32), and the sliding seat (2) is formed with a second guiding inclined surface (23) facing one of the positioning columns (11), and the first guiding inclined surface (32) and the second guiding inclined surface (23) are in contact with each other; An internal support structure (6), wherein the internal support structure (6) is slidably limited to the sliding seat (2) and abuts against a side of the wedge block (3) facing away from the first guide inclined surface; as well as A profiling block (7), wherein the profiling block (7) is provided with two mounting holes, each of the mounting holes is sleeved on a positioning column (11), the upper portion of the profiling block (7) is in contact with the pressure plate (5), a limiting groove is provided on one side of the profiling block (7), and the inner support structure (6) is in contact with one side of the limiting groove.
2. The bicycle processing fixture (1000) according to claim 1, characterized in that: The wedge block (3) is provided with an adjustment hole (31) facing the pressure plate (5), the adjustment hole (31) is formed with an internal thread, the adjustment portion is a bolt (4), the bolt (4) is screwed to the adjustment hole (31), the pressure plate (5) is formed with an avoidance hole (51) relative to the adjustment hole (31), and the end (42) of the bolt (4) is exposed in the avoidance hole (51).
3. The bicycle processing fixture (1000) according to claim 2, characterized in that: The sliding seat (2) is provided with a connecting hole relative to the adjusting hole (31), the connecting hole communicating with the adjusting hole (31) and the avoiding hole (51), the connecting hole forming an annular step groove (21), and the end head (42) abuts against the annular step groove (21) for limiting position.
4. The bicycle processing fixture (1000) according to claim 3, characterized in that: The adjustment hole (31), the avoidance hole (51), the connection hole and the bolt (4) are all arranged to be inclined toward the first guide inclined surface (32).
5. The bicycle processing fixture (1000) according to any one of claims 1 to 4, characterized in that: The inner support structure (6) comprises a sliding plate (61) and a support plate (62) connected to each other. The sliding seat (2) is provided with a guide rail (22). The guide rail (22) is extended along the connecting line direction of the two positioning columns (11). The sliding plate (61) is slidably limited to the guide rail (22). One side of the support plate (62) abuts against the wedge block (3) and the other side abuts against the contour block (7).
6. The bicycle processing fixture (1000) according to any one of claims 1 to 4, characterized in that: A profiling surface (71) is provided on one side of the profiling block (7) facing the base (1), and the profiling surface (71) is used to contact a workpiece.
7. The bicycle processing fixture (1000) according to any one of claims 1 to 4, characterized in that: The pressing plate (5) is provided with two pressing parts abutting against the contour block (7), the pressing parts comprising an elastic member and a pressing block (52), and the two ends of the elastic member are respectively connected to the pressing plate (5) and the pressing block (52).
8. The bicycle processing fixture (1000) according to claim 7, characterized in that: The pressing plate (5) is provided with two annular grooves (53) facing the pressing block (52), and at least a part of the structure of the elastic member is arranged in the annular grooves (53).
9. The bicycle processing fixture (1000) according to claim 7, characterized in that: The elastic member is a spring (521).
10. The bicycle processing fixture (1000) according to any one of claims 1 to 4, characterized in that: The positioning column (11) is detachably arranged on the base (1), and the positioning column (11) is formed with a hollow hole (111).