Front fork correction clamping die structure and clamping tool
By designing the fork correction clamping structure, the problem of the upright pipe bending when the fork is corrected is solved, ensuring that the center of the hook claw is on the central axis, improving the handling and cycling experience of the bicycle.
Patent Information
- Application Number
- CN202422454380.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-11
AI Technical Summary
In the prior art, the forward pipe is bent under force when the fork is corrected, causing the center of the hook claw to deviate from the central axis, affecting the handling of bicycles and cycling experience.
A front fork correction clamping mold structure is designed, including the first mold half and the second mold half, respectively, and the casing groove and the forward pipe groove are respectively opened in the extension direction, so as to ensure the accuracy of the hook claw correction by fixing the connecting end of the sleeve and the forward pipe.
Accurate correction of the front fork, improving the handling and cycling experience of the bicycle.
Smart Images
Figure CN223185392U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bicycles, in particular to a front fork correction clamping die structure and a clamping tool. Background Art
[0002] The front fork is a crucial component of a bicycle's structure. Its upper end connects to the handlebars; its middle portion mates with the frame; and its lower end connects to the front axle and the front wheel, acting as the steering wheel and controlling the bike's direction. Therefore, the accuracy of the front fork is crucial to a bicycle's performance, directly impacting both overall performance and rider safety.
[0003] The front fork includes a vertical tube and a sleeve connected in sequence, and the diameter of the sleeve is larger than the diameter of the vertical tube. Two wishbones are welded to the vertical tube, and the end of the wishbone away from the sleeve is a dropout. After the front fork is produced, the size between the dropouts needs to be measured so that the size between the two dropouts meets the design requirements. To calibrate the front fork, it is necessary to ensure that the center between the dropouts is located on the central axis of the vertical tube. During the calibration process, external force is usually applied to the vertical tube to clamp it, and the dropouts are symmetrically and centrally corrected. Since the force point is completely on the vertical tube, the vertical tube bends during the calibration operation, and the center correction accuracy of the front fork cannot be guaranteed, which affects the handling of the bicycle and the riding experience.
[0004] Therefore, a front fork correction clamping die structure and a clamping tooling are needed to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a front fork correction clamping die structure and a clamping tooling, which can ensure the correction accuracy of the front fork, thereby ensuring the controllability of the bicycle and improving the riding experience.
[0006] To achieve this purpose, the present invention adopts the following technical solutions:
[0007] Front fork correction clamp structure, including:
[0008] A first half mold is provided with a first sleeve groove and a first vertical pipe groove communicating with each other on one side of the first half mold along the extension direction of the first half mold;
[0009] The second half mold has a second sleeve groove and a second vertical pipe groove that are interconnected and formed on a side of the second half mold facing the first half mold along an extension direction of the second half mold, wherein the first sleeve groove is arranged opposite to the second sleeve groove, and the first vertical pipe groove is arranged opposite to the second vertical pipe groove;
[0010] The front fork correction clamp structure is configured as follows: after the first half mold and the second half mold are aligned, one end of the front fork sleeve connected to the stem is fixedly inserted into the first sleeve groove and the second sleeve groove, and the stem is fixedly inserted into the first stem groove and the second stem groove.
[0011] In some embodiments, a first transition groove is provided between the first sleeve groove and the first vertical pipe groove, and the first transition groove is respectively communicated with the first sleeve groove and the first vertical pipe groove; a second transition groove is provided between the second sleeve groove and the second vertical pipe groove, and the second transition groove is respectively communicated with the second sleeve groove and the second vertical pipe groove; the second transition groove can be opposite to the first transition groove, and one end of the vertical pipe connected to the sleeve can be fixedly inserted into the corresponding first transition groove and the second transition groove.
[0012] In some embodiments, a mounting threaded hole is provided on the first half mold, and a fastener can be screwed into the mounting threaded hole to mount the first half mold on the clamping device.
[0013] In some embodiments, a plurality of the mounting threaded holes are spaced apart along the extension direction of the first half mold.
[0014] In some embodiments, a countersunk hole is formed on the second half mold, and a fastener can be inserted into the countersunk hole and connected to the clamping device.
[0015] In some embodiments, a plurality of the countersunk holes are spaced apart along the extension direction of the second half mold.
[0016] In some embodiments, a first expansion slot communicating with the first vertical tube slot is formed on a side of the first half mold facing the second half mold, the first expansion slot is located at an end of the first vertical tube slot away from the first sleeve slot, and the depth of the first expansion slot is different from the depth of the first sleeve slot; a second expansion slot communicating with the second vertical tube slot is formed on a side of the second half mold facing the first half mold, the second expansion slot is located at an end of the second vertical tube slot away from the second sleeve slot, and the depth of the second expansion slot is different from the depth of the second sleeve slot; the end of the sleeve connected to the vertical tube can be fixedly inserted into the corresponding first expansion slot and second expansion slot.
[0017] In some embodiments, a first chamfered corner is provided at a transition between the first sleeve groove and the first vertical pipe groove.
[0018] In some embodiments, a second chamfered corner is provided at a transition between the second sleeve groove and the second vertical pipe groove.
[0019] The clamping tooling includes a clamping device and the front fork correction clamping structure as described above. The first half mold and the second half mold are relatively arranged on the clamping device, and the clamping device can drive the first half mold and the second half mold to be relatively closed or separated.
[0020] Beneficial effects of the utility model:
[0021] The utility model provides a front fork correction clamp structure, wherein a first sleeve groove and a first vertical pipe groove are formed on one side of the first mold along the extension direction of the first mold half, and a second sleeve groove and a second vertical pipe groove are formed on the side of the second mold half facing the first mold half along the extension direction of the second mold half. The first sleeve groove and the second sleeve groove are arranged opposite to each other, and the first vertical pipe groove and the second vertical pipe groove are arranged opposite to each other. After the first mold half and the second mold half are aligned, the end of the sleeve of the front fork connected to the vertical pipe is fixedly inserted into the first sleeve groove and the second sleeve groove, and the vertical pipe is fixedly inserted into the first vertical pipe groove and the second vertical pipe groove. When the front fork is clamped using the front fork correction clamp structure, after the first mold half and the second mold half are aligned, the end of the sleeve of the front fork connected to the vertical pipe is fixedly inserted into the first sleeve groove and the second sleeve groove, and the vertical pipe is fixedly inserted into the first vertical pipe groove and the second vertical pipe groove. When calibrating the front fork's dropouts, the present front fork calibration clamp structure can secure the center of the sleeve and stem, integrating the stem and sleeve into a single unit, allowing the dropouts to be calibrated. This ensures accurate calibration of the front fork, thereby maintaining the bicycle's controllability and enhancing the riding experience.
[0022] The utility model provides a clamping tool, which includes a clamping device and the front fork correction clamp structure as described above, and can ensure the correction accuracy of the front fork, thereby ensuring the controllability of the bicycle and improving the riding experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.
[0024] Figure 1 This is an exploded view of a front fork correction clamping die structure of the utility model;
[0025] Figure 2 The utility model is a schematic diagram of a front fork correction clamping die structure fixedly sleeved on a front fork.
[0026] In the picture:
[0027] 100, vertical tube; 110, sleeve; 120, hook; 1, first half mold; 11, first sleeve groove; 12, first vertical tube groove; 13, first transition groove; 14, mounting threaded hole; 15, first expansion groove; 2, second half mold; 21, second sleeve groove; 22, second vertical tube groove; 23, second transition groove; 24, countersunk hole; 25, second expansion groove. DETAILED DESCRIPTION
[0028] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.
[0029] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.
[0030] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.
[0031] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.
[0032] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.
[0033] In the process of calibrating the front fork of a bicycle, in order to ensure the calibration accuracy of the front fork, thereby ensuring the controllability of the bicycle and improving the riding experience, such as Figure 1-Figure 2 As shown, the present invention provides a front fork correction clamping die structure. The front fork correction clamping die structure includes a first half mold 1 and a second half mold 2.
[0034] A first sleeve groove 11 and a first vertical tube groove 12 are interconnected on one side of the first mold half 1 along its extension direction. A second sleeve groove 21 and a second vertical tube groove 22 are interconnected on the side of the second mold half 2 facing the first mold half 1 along its extension direction. The first sleeve groove 11 and the second sleeve groove 21 are positioned opposite each other, while the first vertical tube groove 12 and the second vertical tube groove 22 are positioned opposite each other. The front fork alignment clamping structure is configured such that, after the first and second mold halves 1 and 2 are aligned, the ends of the front fork sleeve 110 that connect to the vertical tube 100 are fixedly inserted into the first sleeve groove 11 and the second sleeve groove 21, while the vertical tube 100 is fixedly inserted into the first vertical tube groove 12 and the second vertical tube groove 22.
[0035] When calibrating the front fork's dropouts 120, the present front fork calibration clamp structure secures the center of the sleeve 110 and the stem tube 100, integrating the stem tube 100 and sleeve 110, allowing the dropouts 120 to be calibrated. This ensures accurate front fork calibration, thereby enhancing the bicycle's maneuverability and the riding experience. In this embodiment, the center of the dropouts 120 after calibration is aligned with the central axis of the stem tube 100.
[0036] In some embodiments, a first transition groove 13 is provided between the first sleeve groove 11 and the first vertical pipe groove 12. The first transition groove 13 is in communication with the first sleeve groove 11 and the first vertical pipe groove 12, respectively. A second transition groove 23 is provided between the second sleeve groove 21 and the second vertical pipe groove 22. The second transition groove 23 is in communication with the second sleeve groove 21 and the second vertical pipe groove 22, respectively. The second transition groove 23 can be opposite to the first transition groove 13. The end of the vertical pipe 100 connected to the sleeve 110 can be fixedly inserted into the corresponding first transition groove 13 and second transition groove 23. Because the end of the vertical pipe 100 connected to the sleeve 110 has a certain taper, the provision of the first transition groove 13 and the second transition groove 23 can effectively securely accommodate the end of the vertical pipe 100 connected to the sleeve 110.
[0037] In some embodiments, the first mold half 1 is provided with a threaded mounting hole 14, into which a fastener can be threadedly engaged to secure the first mold half 1 to the clamping device. The threaded mounting hole 14 facilitates securing the first mold half 1 to the clamping device using the fastener. In this embodiment, the fastener is a bolt.
[0038] In some embodiments, multiple mounting threaded holes 14 are spaced apart along the extension direction of the first half mold 1. Through the above arrangement, the first half mold 1 is fixed to the clamping device using multiple fasteners to ensure a stable connection between the first half mold 1 and the clamping device.
[0039] In some embodiments, the second mold half 2 is provided with a countersunk hole 24 through which a fastener can be inserted and connected to the clamping device. The countersunk hole 24 facilitates the installation and positioning of the fastener. After the fastener secures the second mold half 2 to the clamping device, the fastener does not protrude from the bottom of the sleeve 110 groove in the second mold half 2, thus preventing interference with the sleeve 110 during the clamping process.
[0040] In some embodiments, a plurality of countersunk holes 24 are provided at intervals along the extension direction of the second mold half 2. With the above arrangement, the second mold half 2 is fixed to the clamping device using a plurality of fasteners, ensuring a stable connection between the second mold half 2 and the clamping device.
[0041] In some embodiments, a first expansion slot 15 is defined on the side of the first mold half 1 facing the second mold half 2, communicating with the first vertical tube slot 12. The first expansion slot 15 is located at the end of the first vertical tube slot 12 distal from the first sleeve slot 11, and the depth of the first expansion slot 15 is different from that of the first sleeve slot 11. A second expansion slot 25 is defined on the side of the second mold half 2 facing the first mold half 1, communicating with the second vertical tube slot 22. The second expansion slot 25 is located at the end of the second vertical tube slot 22 distal from the second sleeve slot 21, and the depth of the second expansion slot 25 is different from that of the second sleeve slot 21. The end of the sleeve 110 connected to the vertical tube 100 can be fixedly inserted into the aligned first and second expansion slots 15, 25. In this embodiment, the first and second expansion slots 15, 25 have the same depth. The provision of the first and second expansion slots 15, 25 allows for the clamping of sleeves 110 of different diameters, thereby increasing the flexibility of the present front fork calibration clamp structure. In order to adapt to the taper of one end where the vertical pipe 100 is connected to the sleeve 110 , a transition groove is also provided between the first expansion groove 15 and the first vertical pipe groove 12 , and a transition groove is provided between the second expansion groove 25 and the second vertical pipe groove 22 .
[0042] In some embodiments, a first rounded corner is provided at the transition between the first sleeve groove 11 and the first vertical pipe groove 12. By providing the first rounded corner, a smooth transition between the first sleeve groove 11 and the first vertical pipe groove 12 can be ensured, thereby avoiding scratches on the vertical pipe 100.
[0043] In some embodiments, a second rounded corner is provided at the transition between the second sleeve groove 21 and the second vertical pipe groove 22. By providing the second rounded corner, a smooth transition between the second sleeve groove 21 and the second vertical pipe groove 22 can be ensured, thereby avoiding scratches on the vertical pipe 100.
[0044] This embodiment also provides a clamping tool, including a clamping device and a front fork correction clamp structure as described above. The first half mold 1 and the second half mold 2 are relatively arranged on the clamping device. The clamping device can drive the first half mold 1 and the second half mold 2 to be relatively closed or separated, which can ensure the correction accuracy of the front fork, thereby ensuring the controllability of the bicycle and improving the riding experience.
[0045] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.
Claims
1. The front fork correction clamping structure is characterized by: include: A first half mold (1), with a first sleeve groove (11) and a first vertical pipe groove (12) communicating with each other being provided on one side of the first half mold (1) along an extension direction of the first half mold (1); The second half mold (2) is provided with a second sleeve groove (21) and a second vertical pipe groove (22) that are in communication with each other on a side of the second half mold (2) facing the first half mold (1) along an extension direction of the second half mold (2), the first sleeve groove (11) and the second sleeve groove (21) being arranged opposite to each other, and the first vertical pipe groove (12) and the second vertical pipe groove (22) being arranged opposite to each other; The front fork correction clamp structure is configured as follows: after the first half mold (1) and the second half mold (2) are aligned, one end of the front fork sleeve (110) connected to the vertical tube (100) is fixedly inserted into the first sleeve groove (11) and the second sleeve groove (21), and the vertical tube (100) is fixedly inserted into the first vertical tube groove (12) and the second vertical tube groove (22).
2. The front fork correction clamp structure according to claim 1, characterized in that: A first transition groove (13) is provided between the first sleeve groove (11) and the first vertical pipe groove (12), and the first transition groove (13) is communicated with the first sleeve groove (11) and the first vertical pipe groove (12) respectively. A second transition groove (23) is provided between the second sleeve groove (21) and the second vertical pipe groove (22), and the second transition groove (23) is communicated with the second sleeve groove (21) and the second vertical pipe groove (22) respectively. The second transition groove (23) can be opposite to the first transition groove (13), and one end of the vertical pipe (100) connected to the sleeve (110) can be fixedly inserted into the first transition groove (13) and the second transition groove (23) that are matched.
3. The front fork correction clamp structure according to claim 1, characterized in that: The first half mold (1) is provided with a mounting threaded hole (14), and a fastener can be screwed into the mounting threaded hole (14) to mount the first half mold (1) on the clamping device.
4. The front fork correction clamp structure according to claim 3, characterized in that: A plurality of mounting threaded holes (14) are provided at intervals along the extension direction of the first half mold (1).
5. The front fork correction clamp structure according to claim 1, characterized in that: The second half mold (2) is provided with a countersunk hole (24), and a fastener can be inserted into the countersunk hole (24) and connected to the clamping device.
6. The front fork correction clamp structure according to claim 5, characterized in that: A plurality of countersunk holes (24) are provided at intervals along the extension direction of the second half mold (2).
7. The front fork correction clamp structure according to claim 1, characterized in that: The first half mold (1) is provided with a first expansion groove (15) on the side facing the second half mold (2), which is connected to the first vertical tube groove (12); the first expansion groove (15) is located at one end of the first vertical tube groove (12) away from the first sleeve groove (11); and the depth of the first expansion groove (15) is different from the depth of the first sleeve groove (11); the second half mold (2) is provided with a second expansion groove (25) on the side facing the first half mold (1), which is connected to the second vertical tube groove (22) away from the second sleeve groove (21); and the depth of the second expansion groove (25) is different from the depth of the second sleeve groove (21); and the end of the sleeve (110) connected to the vertical tube (100) can be fixedly inserted into the first expansion groove (15) and the second expansion groove (25) that are matched.
8. The front fork correction clamp structure according to claim 1, characterized in that: A first chamfered corner is provided at the transition between the first sleeve groove (11) and the first vertical pipe groove (12).
9. The front fork correction clamp structure according to claim 1, characterized in that: A second rounded corner is provided at the transition between the second sleeve groove (21) and the second vertical pipe groove (22).
10. Clamping tool, characterized in that, The invention comprises a clamping device and a front fork correction clamping structure as described in any one of claims 1 to 9, wherein a first half mold (1) and a second half mold (2) are relatively arranged on the clamping device, and the clamping device can drive the first half mold (1) and the second half mold (2) to be relatively closed or separated.