Quick die-changing machining fixing device for front fork

Abstract

The utility model discloses a fixing device for quick die change machining of a front fork, and belongs to the technical field of bicycle machining. The bicycle front fork comprises a base assembly, an installation plate assembly, a first support, a positioning assembly, a second support and a bicycle front fork, the base assembly comprises a base body, a plurality of rows of connectors are formed in the top face of the base body, positioning pins are installed on the top faces of openings of the connectors in a penetrating mode, and the installation plate assembly comprises an installation plate body which is provided with fixing holes in a penetrating mode. The top ends of the positioning pins penetrate and extend into the fixing holes, a row of clamping grooves are formed in the two sides of the outer wall of the mounting plate body, and the first supports and the second supports are arranged on the top faces of the two ends of the fixing holes correspondingly. Through cooperation of the base assembly, the mounting plate body, the guide groove, the positioning assembly and the threaded fixing rod, the requirements of various specifications and models can be met, a base assembly connector is combined with a positioning pin, the mounting plate clamping groove is matched, diversified machining positioning can be dealt with, rapid pre-mounting and reliable secondary locking can be achieved, and it is guaranteed that the mounting plate is stable in the whole machining process.

Description

Technical Field

[0001] This utility model relates to the field of bicycle processing technology, specifically a quick mold changing and fixing device for front forks. Background Technology

[0002] In bicycle manufacturing, the front fork is a crucial component, bearing the heavy responsibility of connecting the bicycle frame to the front wheel. During riding, it withstands the impact of road bumps, the powerful force generated by braking, and various complex stresses from the rider's control. Its machining precision affects the overall performance and safety of the bicycle.

[0003] Existing fork machining and fixing devices often rely on a large number of bolts and nuts to fasten the mold and the machine tool table. When changing the mold, the bolts need to be disassembled and installed one by one, which is cumbersome, time-consuming and reduces production efficiency. In addition, frequent tightening of bolts can easily cause thread wear and reduced positioning accuracy, affecting product consistency. Utility Model Content

[0004] The purpose of this utility model is to provide a fast mold changing and fixing device for front forks. Through the cooperation of base components, mounting plate body, guide groove, positioning components and threaded fixing rod, it can adapt to various specifications and models. The base component interface and positioning pin combination and mounting plate slot cooperation can cope with diverse processing positioning, with a wide range of applications. It can realize fast pre-installation and reliable secondary locking, ensuring the stability of the mounting plate and accurate positioning throughout the processing.

[0005] The utility model is realized through the following technical solutions:

[0006] This utility model is a quick mold changing and fixing device for a front fork, including a base assembly, a mounting plate assembly, a first support, a positioning assembly, a second support, and a bicycle front fork. The base assembly includes a base body, and the top surface of the base body has several rows of interfaces. A positioning pin is installed through the top surface of the interface opening. The mounting plate assembly includes a mounting plate body, and a fixing hole is opened through the mounting plate body. The top end of the positioning pin extends through and is disposed inside the fixing hole. A row of slots is opened on both sides of the outer wall of the mounting plate body.

[0007] The first support and the second support are respectively set on the top surface of the two ends of the fixing hole. The top surface of the first support is provided with a guide groove. The positioning component includes a positioning block. A slider is provided at the bottom of the positioning block. The positioning block slides and fits inside the guide groove through the slider. Two positioning holes are provided at one end of the positioning block. A through hole is provided through the contact surface between the positioning component and the guide groove. A fixing block is connected to the top of the second support by bolt thread. An insertion hole is provided between the second support and the fixing block. A threaded fixing rod is inserted into the insertion hole.

[0008] The bicycle fork is designed in a "Y" shape. The two ends of the "Y"-shaped fork are respectively provided with holes. The two ends of the threaded fixing rod are respectively provided through the holes at both ends of the "Y"-shaped fork of the bicycle fork. One end of the straight part of the "Y"-shaped fork of the bicycle fork is inserted into the through hole between the guide groove and the positioning component.

[0009] Furthermore, the base body is in the shape of a cuboid plate, and several rows of positioning pins are installed on the top surface of the base body. The base body is connected to the mounting plate body through the positioning pins.

[0010] Furthermore, the bottom surface of the mounting plate body abuts against the top surface of the base body, and both ends of the mounting plate body extend to the outside of the top surface of the base body. The slot cross-section is U-shaped, and the internal width of the slot matches the diameter of the positioning pin. The positioning pin can be engaged inside the slot.

[0011] Furthermore, both the first support and the second support are rectangular parallelepipeds with openings at both ends. The bottom surfaces of the first support and the second support are respectively vertically disposed at both ends of the top surface of the mounting plate assembly, and the top surfaces of the first support and the second support are located on the same horizontal plane.

[0012] Furthermore, the first support is slidably connected to the positioning component via a guide groove, and two rows of mounting holes are provided on both sides of the top surface of the first support, with the opening size of the two rows of mounting holes matching the opening size of the positioning holes.

[0013] Furthermore, the second support has a threaded hole at its bottom end, and the second support is threaded to one end of the mounting plate body by means of a bolt passing through the threaded hole. The second support has a threaded fixing hole at its top end, and the fixing block is threaded to the top end of the second support by means of a bolt passing through the threaded fixing hole.

[0014] Furthermore, the two ends of the threaded fixing rod extend through the insertion hole and are set outside the insertion hole. The second support is connected to the bicycle front fork through the threaded fixing rod. Nuts are threadedly connected to both sides of the contact point between the two ends of the threaded fixing rod and the outer wall of the "Y"-shaped branch of the bicycle front fork.

[0015] Furthermore, one end of the straight section of the "Y"-shaped rod of the bicycle front fork extends through the outside of the through hole, and the straight section is located between the two positioning holes.

[0016] This utility model has the following beneficial effects:

[0017] This utility model, through the cooperation of a base assembly, mounting plate body, guide groove, positioning assembly, and threaded fixing rod, can adapt to various specifications and models. The base assembly interface and positioning pin combination, along with the mounting plate slot cooperation, can handle diverse processing positioning, with a wide range of applications. It can achieve rapid pre-installation and reliable secondary locking, ensuring the mounting plate is stable and accurately positioned throughout the processing. This allows the bicycle fork to be processed strictly according to the preset, with dimensions and geometric tolerances meeting the standards. It comprehensively restricts the freedom of the fork, ensuring stable fixation, effectively resisting external interference, and significantly improving processing accuracy and finished product quality.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the machining fixing device;

[0020] Figure 2 A structural schematic diagram of the mounting plate assembly, the first support, the guide groove, the positioning assembly, the second support, the insertion hole, and the fixing block;

[0021] Figure 3 This is a schematic diagram of the base assembly.

[0022] Figure 4 This is a structural diagram of the first support, positioning assembly, second support, bicycle fork, and threaded fixing rod.

[0023] In the diagram: 1. Base assembly; 101. Base body; 102. Interface; 103. Positioning pin; 2. Mounting plate assembly; 201. Mounting plate body; 202. Fixing hole; 203. Slot; 3. First support; 4. Guide groove; 5. Positioning assembly; 501. Positioning block; 502. Positioning hole; 503. Slider; 6. Second support; 7. Insertion hole; 8. Fixing block; 9. Bicycle front fork; 10. Threaded fixing rod. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4This utility model provides a technical solution: a quick mold-changing and fixing device for a bicycle fork, including a base assembly 1, a mounting plate assembly 2, a first support 3, a positioning assembly 5, a second support 6, and a bicycle fork 9. The base assembly 1 includes a base body 101, with several rows of interfaces 102 on the top surface of the base body 101. A positioning pin 103 is installed through the top surface of the opening of each interface 102. The several rows of interfaces 102 are adapted to different specifications and models of installation requirements and to meet diverse processing and positioning requirements. The mounting plate assembly 2 includes a mounting plate body 201, with a fixing pin installed through the mounting plate body 201. Hole 202, the top end of the positioning pin 103 extends through and is set inside the fixing hole 202. The positioning pin 103 is made of high-strength alloy steel, which has excellent wear resistance and dimensional stability. Its precise machining accuracy can be controlled within a very small tolerance range, ensuring a tight fit with subsequent components. It can effectively limit the planar displacement and rotational freedom of the mounting plate body 201, ensuring the certainty and consistency of the mounting plate's position on the base. The base body 101 is a rectangular plate, and several rows of positioning pins 103 are installed on the top surface of the base body 101. The base body 101 is connected to the mounting plate body 202 through the positioning pins 103. 01. It can quickly achieve the initial positioning and pre-installation of the mounting plate, greatly improving assembly efficiency. On the other hand, the cooperation between the slot 203 and the positioning pin 103 is like a secondary locking mechanism. Even if it encounters certain external force impact or vibration interference during the processing, it can strengthen the reliability of the connection between the mounting plate and the base, effectively preventing the mounting plate from shifting or loosening, and ensuring that the bicycle fork 9 is always in a precise and stable positioning state during processing, laying a solid foundation for high-precision processing. A row of slots 203 are opened on both sides of the outer wall of the mounting plate body 201, and the bottom surface of the mounting plate body 201 abuts against the top of the base body 101. The mounting plate body 201 extends to the outside of the top surface of the base body 101 at both ends. The slot 203 has a U-shaped cross-section. The internal width of the slot 203 matches the diameter of the positioning pin 103. The positioning pin 103 can be snapped into the slot 203, thereby restricting the freedom of the bicycle fork 9 and making it firmly fixed during the processing. It strictly follows the preset processing path and parameters to accept various cutting, grinding and other processing operations, ensuring that the processed bicycle fork 9 has accurate dimensions and meets high standard requirements in terms of form and position tolerance, thus meeting the stringent requirements of bicycle manufacturing for the quality and performance of the fork.

[0026] The first support 3 and the second support 6 are respectively set on the top surfaces of the two ends of the fixing hole 202. Both the first support 3 and the second support 6 are cuboids with through openings at both ends. The bottom surfaces of the first support 3 and the second support 6 are respectively vertically set on the top surfaces of the mounting plate assembly 2. The top surfaces of the first support 3 and the second support 6 are on the same horizontal plane, ensuring uniform force and positioning balance, and avoiding positioning deviations and processing errors caused by height differences. The top surface of the first support 3 is provided with a guide groove 4. The positioning assembly 5 includes a positioning block 501. The bottom end of the positioning block 501 is provided with a slider 503. The positioning block 501 slides in the guide groove 4 through the slider 503. The positioning block 501 can slide flexibly along the guide groove 4 as needed to adapt to the positioning requirements of different specifications of bicycle front forks 9. One end of the positioning block 501 is provided with two positioning holes 502. The first support 3 is slidably connected to the positioning assembly 5 through the guide groove 4. Two rows of mounting holes are provided on both sides of the top surface of the first support 3. The opening size of the two rows of mounting holes is the same as that of the positioning holes 502. The opening size of 02 is matched to ensure that bolts and other connecting parts can be accurately passed through in subsequent assembly, so as to realize the stable connection between the positioning block 501 and the first support 3, lock the positioning state, and prevent loosening and displacement during processing. The contact surface of the positioning component 5 and the guide groove 4 is provided with a through hole. The top of the second support 6 is connected to the fixing block 8 by bolt thread. An insertion hole 7 is provided between the second support 6 and the fixing block 8. A threaded fixing rod 10 is inserted into the insertion hole 7. The bottom of the second support 6 is provided with a threaded hole. The second support 6 is threaded to one end of the mounting plate body 201 by bolt through the threaded hole. The top of the second support 6 is provided with a threaded fixing hole. The fixing block 8 is threaded to the top of the second support 6 by bolt through the threaded fixing hole. The inner diameter of the insertion hole 7 is precisely matched with the outer diameter of the threaded fixing rod 10 to ensure smooth insertion and provide stable support. The insertion depth and angle of the threaded fixing rod 10 in the insertion hole 7 can be adjusted as needed to assist in fixing bicycle forks 9 of special shapes or sizes.

[0027] The bicycle front fork 9 is arranged in a "Y" shape. Holes are formed at both ends of the "Y"-shaped fork of the bicycle front fork 9. Threaded fixing rods 10 are threaded through these holes at both ends of the "Y"-shaped fork of the bicycle front fork 9. The threaded fixing rods 10 extend through insertion holes 7 and are positioned outside the insertion holes 7. The second support 6 is connected to the bicycle front fork 9 via the threaded fixing rods 10. Nuts are threaded onto both ends of the threaded fixing rod 10 and the outer wall of the "Y"-shaped fork of the bicycle front fork 9, effectively and firmly binding the bicycle front fork 9 to the second support 6. After tightening, the nuts utilize the strong friction between the threads... The force and clamping force, on the one hand, prevent the threaded fixing rod 10 from accidentally coming out and strengthen the connection stability. One end of the straight rod of the "Y"-shaped rod of the bicycle front fork 9 is inserted into the through hole between the guide groove 4 and the positioning component 5. One end of the straight rod of the "Y"-shaped rod of the bicycle front fork 9 extends through the outside of the through hole. The straight rod is located between the two positioning holes 502, which strictly restricts the plane and angle freedom of the straight rod of the "Y"-shaped rod of the bicycle front fork 9. This ensures that the overall position of the front fork is stable and the machining dimensions are accurate under the action of external forces such as cutting force and vibration during processing, and ensures that the final product quality of the bicycle front fork 9 meets the high-performance riding and safety standards.

[0028] During operation, based on processing requirements, the base body 101 utilizes multiple rows of interfaces 102 and positioning pins 103 on its top surface to cooperate with the fixing holes 202 of the mounting plate body 201. The slots 203 and positioning pins 103 are engaged to quickly and initially position and securely pre-install the mounting plate assembly 2 on the base assembly 1. Then, the slider 503 of the positioning assembly 5 slides into the guide groove 4 of the first support 3, and the positioning block 501 is slid as needed to adapt to the specifications of the bicycle front fork 9. The bolts are then used to fix the second support 6 through the mounting hole and the positioning hole 502. The bottom end of the second support 6 is screwed into one end of the mounting plate body 201 with bolts, and the top end is bolted to the fixing block 8 to form the insertion hole 7. Insert one end of the straight rod of the bicycle front fork 9, which is shaped like a "Y", into the through hole between the guide groove 4 and the positioning component 5. Align the holes at both ends of the fork with the insertion hole 7, insert the threaded fixing rod 10 and make it pass through the insertion hole 7, and tighten the nuts at both ends to fix it, so that each part of the front fork is precisely constrained. Then, carry out cutting, grinding and other processing operations on the front fork according to the preset processing path and parameters.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A quick-change molding and fixing device for a front fork, comprising a base assembly (1) and a mounting plate assembly (2), characterized in that: The base assembly (1) includes a base body (101), the top surface of which is provided with several rows of interfaces (102), and a positioning pin (103) is installed through the top surface of the interface (102). The mounting plate assembly (2) includes a mounting plate body (201), the mounting plate body (201) is provided with a fixing hole (202), the top end of the positioning pin (103) extends through and is disposed inside the fixing hole (202), and a row of slots (203) is provided on both sides of the outer wall of the mounting plate body (201). It also includes a first support (3), a positioning component (5), and a second support (6). The first support (3) and the second support (6) are respectively set on the top surfaces of the two ends of the fixing hole (202). The top surface of the first support (3) is provided with a guide groove (4). The positioning component (5) includes a positioning block (501). The bottom end of the positioning block (501) is provided with a slider (503). The positioning block (501) is slidably fitted inside the guide groove (4) through the slider (503). One end of the positioning block (501) is provided with two positioning holes (502). The contact surface between the positioning component (5) and the guide groove (4) is provided with a through hole. The top end of the second support (6) is connected to a fixing block (8) by a bolt thread. An insertion hole (7) is provided between the second support (6) and the fixing block (8). A threaded fixing rod (10) is inserted into the insertion hole (7). It also includes a bicycle fork (9), which is arranged in a "Y" shape. The two ends of the "Y"-shaped fork of the bicycle fork (9) are respectively provided with holes. The two ends of the threaded fixing rod (10) are respectively provided through the holes at both ends of the "Y"-shaped fork of the bicycle fork (9). One end of the straight part of the "Y"-shaped fork of the bicycle fork (9) is inserted into the through hole between the guide groove (4) and the positioning component (5).

2. The front fork quick mold changing and fixing device according to claim 1, characterized in that, The base body (101) is in the shape of a cuboid plate. Several rows of positioning pins (103) are installed on the top surface of the base body (101). The base body (101) is connected to the mounting plate body (201) through the positioning pins (103).

3. The front fork quick mold changing and fixing device according to claim 1, characterized in that, The bottom surface of the mounting plate body (201) abuts against the top surface of the base body (101). Both ends of the mounting plate body (201) extend outside the top surface of the base body (101). The slot (203) has a U-shaped cross-section. The internal width of the slot (203) matches the diameter of the positioning pin (103). The positioning pin (103) can be snapped into the slot (203).

4. The front fork quick mold changing and fixing device according to claim 1, characterized in that, The first support (3) and the second support (6) are both cuboids with through openings at both ends. The bottom surfaces of the first support (3) and the second support (6) are respectively vertically arranged at both ends of the top surface of the mounting plate assembly (2). The top surfaces of the first support (3) and the second support (6) are located on the same horizontal plane.

5. The front fork quick mold changing and fixing device according to claim 4, characterized in that, The first support (3) is slidably connected to the positioning component (5) through the guide groove (4). Two rows of mounting holes are provided on both sides of the top surface of the first support (3). The opening size of the two rows of mounting holes matches the opening size of the positioning hole (502).

6. The front fork quick mold changing and fixing device according to claim 4, characterized in that, The second support (6) has a threaded hole at its bottom end. The second support (6) is threaded to one end of the mounting plate body (201) by means of a bolt passing through the threaded hole. The second support (6) has a threaded fixing hole at its top end. The fixing block (8) is threaded to the top end of the second support (6) by means of a bolt passing through the threaded fixing hole.

7. The front fork quick mold changing and fixing device according to claim 1, characterized in that, The threaded fixing rod (10) extends through the insertion hole (7) at both ends and is disposed outside the insertion hole (7). The second support (6) is connected to the bicycle fork (9) through the threaded fixing rod (10). Nuts are threadedly connected to both ends of the threaded fixing rod (10) and the outer wall of the "Y"-shaped fork of the bicycle fork (9).

8. The quick mold changing and fixing device for a front fork according to claim 7, characterized in that, One end of the straight rod of the "Y"-shaped rod of the bicycle fork (9) extends through the outside of the through hole, and the straight rod is located between the two positioning holes (502).

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