Bicycle bottom fork assembly jig

Abstract

The utility model belongs to bicycle parts assembly technical field discloses a bicycle lower fork group establishes jig, the utility model discloses a bicycle lower fork group establishes jig and positions and clamps to first fork leg and first hook claw and second fork leg and second hook claw, thereby simplifies the procedure, and improves production efficiency, and, the utility model discloses through first positioning mechanism and fixes the position of first hook claw and second hook claw, and through third positioning mechanism determines the relative position of first fork leg and first hook claw in second direction and the relative position of second fork leg and second hook claw in second direction, thereby guarantees that the component one formed by first fork leg and first hook claw group establishes with the component two formed by second fork leg and second hook claw group establishes the size consistent, and then avoids the influence frame overall accuracy and assembly performance.

Description

Technical Field

[0001] This utility model relates to the field of bicycle component assembly technology, and in particular to a bicycle lower fork assembly jig. Background Technology

[0002] Bicycles, also known as pedal bikes or bicycles, are not only an environmentally friendly means of transportation for getting around, but also a fitness tool for exercise and outings, making them an important tool for people's daily lives.

[0003] A bicycle consists of a frame, pedals, a front fork, and chainstays. The chainstays generally consist of fork ribs, dropouts, and support rods. The fork ribs include the left and right fork legs, each connected to a dropout. During manufacturing, the fork ribs, dropouts, and support rods need to be assembled to form a complete structure.

[0004] Therefore, in the existing technology, the assembly of the fork and the hook adopts a left-right separate component assembly mode. Specifically, the assembly of the left fork and the corresponding hook and the assembly of the right fork and the corresponding hook are carried out separately, that is, the assembly of the left and right components are carried out separately. The left fork and the corresponding hook are assembled to obtain component one, and the right fork and the corresponding hook are assembled to obtain component two. After the assembly of the left fork and the corresponding hook and the right fork and the corresponding hook are completed, component one and component two are then assembled with the support rod.

[0005] However, during the assembly of the left and right parts, it is necessary to position and clamp the left and right parts separately, which is a complicated process with low production efficiency. Moreover, due to the lack of a unified benchmark during the assembly of individual parts, the cumulative error will lead to a large dimensional deviation between component one and component two, resulting in a "short leg" phenomenon when assembling component one and component two in the later stage, which will seriously affect the overall accuracy of the frame and the assembly performance.

[0006] Therefore, the above problems urgently need to be solved. Utility Model Content

[0007] The purpose of this utility model is to provide a bicycle lower fork assembly jig to position and clamp two sets of fork legs and dropouts at the same time, thereby simplifying the process and improving production efficiency. At the same time, it ensures that the dimensions of the two sets of fork legs and dropouts are consistent after assembly, thereby avoiding affecting the overall accuracy of the frame and assembly performance.

[0008] To achieve this objective, the present invention adopts the following technical solution:

[0009] Bicycle chainstay assembly jig, including:

[0010] The first positioning mechanism includes a first positioning block, a first pressing member, and a second pressing member. The first positioning block is provided with a first boss and a second boss on both sides along a first direction. The first boss and the second boss are respectively used to hold a first hook and a second hook. The first pressing member and the second pressing member are respectively used to push the first hook and the second hook, so that the first hook and the second hook press against both sides of the first positioning block along the first direction.

[0011] The second positioning mechanism includes a second positioning block. The first positioning block and the second positioning block are arranged at intervals along a second direction, which is perpendicular to the first direction. The second positioning block is provided with a first contouring groove and a second contouring groove. The first contouring groove and the second contouring groove are arranged at intervals along the first direction and are respectively used to accommodate the first fork leg and the second fork leg. The first fork leg and the second fork leg are respectively inserted into the first hook and the second hook along the second direction.

[0012] The third positioning mechanism is located on the side of the second positioning block away from the first positioning block, and includes a push block and a first driving member. The first driving member can drive the push block to move along the second direction and push the push block against the first fork and the second fork together.

[0013] Preferably, the second positioning mechanism further includes a third positioning block, which is configured to position the support rod placed on the first fork and the second fork.

[0014] Preferably, the third positioning block is provided with a third contour groove and a slot. The third contour groove is used to accommodate the support rod, and the slot is used to insert a positioning pin. The positioning pin stops at the top of the support rod.

[0015] Preferably, the second positioning block includes a first block and a second block, which are arranged at intervals along the second direction. The first block is provided with a first groove and a second groove on both sides of the first direction, and the second block is provided with a third groove and a fourth groove on both sides of the first direction. The first groove and the third groove are arranged on the same side and form the first contour groove, and the second groove and the fourth groove are arranged on the same side and form the second contour groove.

[0016] Preferably, the second block is disposed on the side of the first block away from the first positioning block, the first block is used to support the middle part of the first fork and the second fork, and the second block is used to support the ends of the first fork and the second fork.

[0017] Preferably, the bicycle lower fork assembly fixture further includes a base, on which both the first block and the second block are mounted, and the positions of the first block and the second block in the second direction are adjustable.

[0018] Preferably, the side of the push block facing the second positioning block is contoured to the side of the bottom bracket used to connect the first fork leg and the second fork leg.

[0019] Preferably, the third positioning mechanism further includes a first mounting base and a guide plate, the first driving member is mounted on the first mounting base, the guide plate is fixedly connected to the push block, the first mounting base is provided with a guide groove, the guide groove extends along the second direction, and the guide plate is slidably mounted in the guide groove.

[0020] Preferably, the bicycle lower fork assembly fixture also includes a base, and both the first positioning mechanism and the second positioning mechanism are detachably mounted on the base.

[0021] Preferably, both the first pressing member and the second pressing member are mounted on the base, and the positions of the first pressing member and the second pressing member in the first direction are adjustable.

[0022] The beneficial effects of this utility model are:

[0023] The bicycle lower fork assembly fixture of this utility model positions and clamps the first fork leg and the first hook, as well as the second fork leg and the second hook, thereby simplifying the process and improving production efficiency. Moreover, this utility model fixes the position of the first hook and the second hook through the first positioning mechanism, and determines the relative position of the first fork leg and the first hook in the second direction and the relative position of the second fork leg and the second hook in the second direction through the third positioning mechanism, thereby ensuring that the component one formed by assembling the first fork leg and the first hook is dimensionally consistent with the component two formed by assembling the second fork leg and the second hook, thus avoiding affecting the overall accuracy of the frame and the assembly performance. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the lower fork structure in an embodiment of this utility model;

[0025] Figure 2 This is one of the structural schematic diagrams of a bicycle lower fork assembly jig with a lower fork mounted in an embodiment of this utility model;

[0026] Figure 3 This is the second schematic diagram of the structure of the bicycle lower fork assembly jig with lower forks mounted in this utility model embodiment;

[0027] Figure 4This is one of the structural schematic diagrams of the bicycle lower fork assembly jig without the lower fork mounted in this utility model embodiment;

[0028] Figure 5 This is the second structural schematic diagram of the bicycle lower fork assembly jig without the lower fork mounted in this utility model embodiment;

[0029] Figure 6 This is the third structural schematic diagram of the bicycle lower fork assembly jig without the lower fork mounted in this utility model embodiment.

[0030] In the picture:

[0031] 101. First fork leg; 102. Second fork leg; 103. First hook; 1031. First slot; 104. Second hook; 1041. Second slot; 105. Support rod;

[0032] 1. First positioning mechanism; 11. First positioning block; 111. First boss; 112. Second boss; 12. First pressing member; 121. Second driving member; 122. First pressing block; 13. Second pressing member; 131. Third driving member; 132. Second pressing block; 14. Second mounting base; 141. Fifth strip hole; 15. Third mounting base; 151. Sixth strip hole;

[0033] 2. Second positioning mechanism; 21. Second positioning block; 211. First contour groove; 212. Second contour groove; 213. First block; 2131. First groove; 2132. Second groove; 2133. First slot; 214. Second block; 2141. Third groove; 2142. Fourth groove; 2143. Second slot; 22. Third positioning block; 221. Third contour groove; 222. Slot; 223. Positioning pin; 224. Fourth slot;

[0034] 3. Third positioning mechanism; 31. Push block; 32. First driving component; 33. First mounting base; 331. Guide groove; 332. Third strip hole; 34. Guide plate;

[0035] 4. Base; 41. First slide groove; 411. First connecting hole; 412. Second connecting hole; 413. Fourth connecting hole; 42. Third connecting hole; 43. Second slide groove; 44. Third slide groove; 45. Fifth connecting hole; 46. Sixth connecting hole. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] Based on the content mentioned above, such as Figure 1 As shown, the bicycle down fork includes a fork rib and a dropout. The fork rib includes two fork legs, each of which is connected to a dropout. In this embodiment, the two fork legs are described as the first fork leg 101 and the second fork leg 102, and the two dropouts are described as the first dropout 103 and the second dropout 104. Specifically, the bicycle down fork includes two sets of fork legs and dropouts. The first fork leg 101 and the first dropout 103 form one set, and the second fork leg 102 and the second dropout 104 form the other set.

[0041] From the above, please refer to Figures 2 to 6This embodiment provides a bicycle lower fork assembly jig, which includes a first positioning mechanism 1 and a second positioning mechanism 2. The first positioning mechanism 1 includes a first positioning block 11, a first pressing member 12 and a second pressing member 13. The first positioning block 11 is provided with a first boss 111 and a second boss 112 on both sides along a first direction. The first boss 111 and the second boss 112 are respectively used to hold a first hook 103 and a second hook 104. Specifically, the first hook 103 and the second hook 104 are respectively provided with a first slot 1031 and a second slot 1041. The first hook 103 is sleeved on the outer periphery of the first boss 111 through the first slot 1031, and the second hook 104 is sleeved on the outer periphery of the second boss 112 through the second slot 1041.

[0042] The first pressing member 12 and the second pressing member 13 are respectively used to push the first hook 103 and the second hook 104, so that the first hook 103 and the second hook 104 press against the first positioning block 11 on both sides along the first direction, thereby clamping the first hook 103 and the second hook 104 in the first direction.

[0043] The second positioning mechanism 2 includes a second positioning block 21. The first positioning block 11 and the second positioning block 21 are arranged at intervals along a second direction, which is perpendicular to the first direction. The second positioning block 21 is provided with a first contouring groove 211 and a second contouring groove 212. The first contouring groove 211 and the second contouring groove 212 are arranged at intervals along the first direction and are respectively used to accommodate the first fork leg 101 and the second fork leg 102. The first fork leg 101 and the second fork leg 102 are respectively inserted into the first hook 103 and the second hook 104 along the second direction.

[0044] In addition to the first positioning mechanism 1 and the second positioning mechanism 2, the bicycle lower fork assembly fixture also includes a third positioning mechanism 3. The third positioning mechanism 3 is located on the side of the second positioning block 21 away from the first positioning block 11, and includes a push block 31 and a first driving member 32. The first driving member 32 can drive the push block 31 to move along the second direction, and make the push block 31 push against the first fork leg 101 and the second fork leg 102 together, so that the first fork leg 101 presses against the first hook 103 along the second direction, and the second fork leg 102 presses against the second hook 104 along the second direction, thereby determining the relative positions of the first fork leg 101 and the first hook 103 in the second direction, as well as the relative positions of the second fork leg 102 and the second hook 104 in the second direction.

[0045] As described above, the bicycle lower fork assembly fixture in this embodiment positions and clamps the first fork leg 101 and the first hook 103, as well as the second fork leg 102 and the second hook 104, thereby simplifying the process and improving production efficiency. Moreover, in this embodiment, the first positioning mechanism 1 fixes the position of the first hook 103 and the second hook 104, and the third positioning mechanism 3 determines the relative position of the first fork leg 101 and the first hook 103 in the second direction and the relative position of the second fork leg 102 and the second hook 104 in the second direction, thereby ensuring that the component one formed by assembling the first fork leg 101 and the first hook 103 has the same size as the component two formed by assembling the second fork leg 102 and the second hook 104, thus avoiding affecting the overall accuracy of the frame and the assembly performance.

[0046] Specifically, in this embodiment, the positions of the first claw 103 and the second claw 104 are fixed by the first positioning mechanism 1, so that the first fork 101 and the second fork 102 are placed with the first claw 103 and the second claw 104 as the positioning origin. During the placement process, the relative positions of the first fork 101 and the second fork 102 along the first direction are determined by the second positioning block 21. Then, the first fork 101 and the second fork 102 are pushed together by the third positioning mechanism 3, thereby determining the relative positions of the first fork 101 and the first claw 103 in the second direction and the relative positions of the second fork 102 and the second claw 104 in the second direction. As a result, the dimensions of component one formed by the first fork 101 and the first claw 103 and component two formed by the second fork 102 and the second claw 104 can be kept consistent. Moreover, in this embodiment, the clamping and positioning of the first fork 101 and the first claw 103 and the clamping and positioning of the second fork 102 and the second claw 104 are performed simultaneously, resulting in high work efficiency.

[0047] It is understandable that after clamping and positioning the first fork 101 and the first hook 103, as well as the second fork 102 and the second hook 104, the first fork 101 and the first hook 103, as well as the second fork 102 and the second hook 104, can be welded simultaneously, and the resulting components one and components two will not have a "short leg" phenomenon.

[0048] It is worth noting that, for bicycle down forks, the end of the fork bone away from the dropout needs to be assembled with the bottom bracket. In order to prevent affecting the assembly of the two, in this embodiment, the side of the push block 31 facing the second positioning block 21 is shaped to the side of the bottom bracket used to connect the first fork leg 101 and the second fork leg 102, thereby preventing the push block 31 from damaging the first fork leg 101 and the end of the fork leg used to be assembled with the bottom bracket.

[0049] Moreover, since the push block 31 is shaped similarly to the bottom bracket and faces the second positioning block 21, the push block 31 can push the first fork leg 101 and the second fork leg 102 more firmly, thereby enabling more precise positioning of the first fork leg 101 and the first hook 103, as well as the second fork leg 102 and the second hook 104 in the second direction.

[0050] It is also worth noting that, such as Figure 1 As shown, in addition to the fork and the dropout, the bicycle lower fork also includes a support rod 105, which needs to be assembled onto the first fork leg 101 and the second fork leg 102.

[0051] Please continue reading. Figures 2 to 6 In this embodiment, the second positioning mechanism 2 further includes a third positioning block 22, which is configured to position the support rod 105 placed on the first fork 101 and the second fork 102 so that the support rod 105 can be accurately welded to the first fork 101 and the second fork 102 in the future.

[0052] Based on the above description, under the pressure of the first pressing member 12 and the second pressing member 13, the first positioning block 11 can determine the relative position of the first hook 103 and the second hook 104 in the first direction. Thus, the first positioning block 11 can limit the distance between the first hook 103 and the second hook 104 in the first direction to meet the design requirements. Moreover, the subsequent second positioning block 21 can limit the distance between the first fork leg 101 and the second fork leg 102 in the first direction to meet the design requirements, so that the support rod 105 can be accurately placed on the first fork leg 101 and the second fork leg 102.

[0053] As described above, this embodiment can assemble the first fork leg 101 and the first hook 103, the second fork leg 102 and the second hook 104, and the support rod 105 together, thereby further improving work efficiency and further improving the production efficiency of the lower fork.

[0054] In this embodiment, the third positioning block 22 is provided with a third contour groove 221 and a slot 222. The third contour groove 221 is used to accommodate the support rod 105, and the slot 222 is used to insert the positioning pin 223. The positioning pin 223 stops at the top of the support rod 105. That is, in this embodiment, after the first fork leg 101 and the first hook 103, the second fork leg 102 and the second hook 104 are clamped and positioned by the first positioning mechanism 1, the second positioning block 21 and the third positioning mechanism 3, the support rod 105 is placed on the first fork leg 101 and the second fork leg 102. Moreover, during the placement process, the third positioning block 22 provides guidance. Afterwards, the positioning pin 223 is inserted into the third positioning block 22, and the positioning pin 223 stops the support rod 105, thereby enabling the support rod 105 to be positioned.

[0055] Furthermore, in this embodiment, the second positioning block 21 includes a first block 213 and a second block 214. The first block 213 and the second block 214 are arranged at intervals along a second direction. The first block 213 is provided with a first groove 2131 and a second groove 2132 on both sides along the first direction. The second block 214 is provided with a third groove 2141 and a fourth groove 2142 on both sides along the first direction. The first groove 2131 and the third groove 2141 are arranged on the same side and form a first contour groove 211. The second groove 2132 and the fourth groove 2142 are arranged on the same side and form a second contour groove 212. Thus, the second positioning block 21 can accommodate most of the first fork leg 101 and the second fork leg 102, thereby enabling more accurate positioning of the first fork leg 101 and the second fork leg 102.

[0056] The second block 214 is located on the side of the first block 213 away from the first positioning block 11. The first block 213 is used to support the middle part of the first fork leg 101 and the second fork leg 102, while the second block 214 is used to support the ends of the first fork leg 101 and the second fork leg 102. That is, the second block 214 is used to support one end of the first fork leg 101 and the bottom bracket assembly and one end of the second fork leg 102 and the bottom bracket assembly, thereby ensuring that the second positioning block 21 can more stably support and position the first fork leg 101 and the second fork leg 102.

[0057] In addition, in this embodiment, the bicycle lower fork assembly fixture also includes a base 4. The first block 213 and the second block 214 are both installed on the base 4, and the positions of the first block 213 and the second block 214 in the second direction are adjustable. This allows the positions of the first block 213 and the second block 214 in the second direction to be adjusted according to the actual dimensions of the first fork 101 and the second fork 102 before assembly, thereby further ensuring that the first block 213 and the second block 214 can more accurately position the first fork 101 and the second fork 102.

[0058] For example, in this embodiment, the base 4 is provided with a first sliding groove 41, which extends along a second direction. The first sliding groove 41 is provided with a first connecting hole 411 and a second connecting hole 412. The first block 213 and the second block 214 are respectively provided with a first strip hole 2133 and a second strip hole 2143, which both extend along the second direction. The first connecting hole 411 is directly opposite to the first strip hole 2133, and the second connecting hole 412 is directly opposite to the second strip hole 2143. The first block 213 passes through the first strip hole 2133 and the first connecting hole 4143. The first bolt (not shown in the figure) of the connecting hole 411 is connected to the base 4. The second block 214 is connected to the base 4 by the second bolt (not shown in the figure) passing through the second strip hole 2143 and the second connecting hole 412. In this embodiment, the first bolt and the second bolt can be removed, and then the first block 213 and the second block 214 can be slid along the first sliding groove 41 to adjust the position of the first block 213 and the second block 214 in the second direction. After the adjustment is completed, the first block 213 is locked to the base 4 again by the first bolt, and the second block 214 is locked to the base 4 by the second bolt.

[0059] Correspondingly, the positions of the push block 31 and the first driving member 32 in the second direction are also adjustable. Specifically, in this embodiment, the third positioning mechanism 3 also includes a first mounting base 33, which is mounted on the base 4. The first driving member 32 is mounted on the first mounting base 33. It can be understood that the push block 31 is mounted on the movable end of the first driving member 32. Therefore, the position of the first mounting base 33 in the second direction is adjustable.

[0060] Specifically, in this embodiment, the base 4 is provided with a third connecting hole 42, and the first mounting seat 33 is provided with a third strip hole 332. The third strip hole 332 extends along the second direction, and the third connecting hole 42 is directly opposite to the third strip hole 332. The first mounting seat 33 is connected to the base 4 by a third bolt (not shown in the figure) passing through the third strip hole 332 and the third connecting hole 42. In this embodiment, the position of the first mounting seat 33 in the second direction can be adjusted by removing the third bolt and then sliding the first mounting seat 33 along the first sliding groove 41. After the adjustment is completed, the first mounting seat 33 is locked back to the base 4 by the third bolt.

[0061] In addition, the position of the third positioning block 22 in the second direction is also adjustable. Specifically, the third positioning block 22 is provided with a fourth strip hole 224, and the first slide groove 41 is also provided with a fourth connecting hole 413. The fourth strip hole 224 extends along the second direction, and the fourth connecting hole 413 is directly opposite to the fourth strip hole 224. The third positioning block 22 is connected to the base 4 by a fourth bolt (not shown in the figure) passing through the fourth strip hole 224 and the fourth connecting hole 413. In this embodiment, the position of the third positioning block 22 in the second direction can be adjusted by removing the fourth bolt and then sliding the third positioning block 22 along the first slide groove 41. After the adjustment is completed, the third positioning block 22 is locked back to the base 4 by the fourth bolt.

[0062] Based on the above, in this embodiment, the second positioning mechanism 2 is detachably mounted on the base 4. Additionally, the first positioning mechanism 1 is also detachably mounted on the base 4. For example, the first positioning block 11, the first pressing member 12, and the second pressing member 13 are all screwed to the base 4. When the dimensions of the lower fork change due to a model change, the first positioning mechanism 1 and the second positioning mechanism 2 can be replaced accordingly to adapt to the changed assembly dimensions of the lower fork.

[0063] As described above, the first pressing member 12 and the second pressing member 13 are both installed on the base 4, and the positions of the first pressing member 12 and the second pressing member 13 in the first direction are adjustable, so that the positions of the first pressing member 12 and the second pressing member 13 in the first direction can be adjusted before assembly, thereby ensuring that the first pressing member 12 and the second pressing member 13 can accurately press the first hook 103 and the second hook 104.

[0064] Specifically, the base 4 is provided with a second sliding groove 43 and a third sliding groove 44, both extending along a first direction. The base 4 is provided with a fifth connecting hole 45 and a sixth connecting hole 46. The first pressing member 12 and the second pressing member 13 are respectively installed on the second mounting base 14 and the third mounting base 15. The second mounting base 14 and the third mounting base 15 are respectively provided with a fifth strip hole 141 and a sixth strip hole 151. The fifth connecting hole 45 is directly opposite to the fifth strip hole 141, and the sixth connecting hole 46 is directly opposite to the sixth strip hole 151. The second mounting base 14 passes through the fifth strip hole 141 and the fifth connecting hole. The fifth bolt (not shown in the figure) of 45 is connected to the base 4. The third mounting seat 15 is connected to the base 4 by the sixth bolt (not shown in the figure) passing through the sixth strip hole 151 and the sixth connecting hole 46. In this embodiment, the positions of the first pressing member 12 and the second pressing member 13 in the first direction can be adjusted by removing the fifth bolt and the sixth bolt, then sliding the second mounting seat 14 along the second slide groove 43, and sliding the third mounting seat 15 along the third slide groove 44. After the adjustment is completed, the second mounting seat 14 is locked to the base 4 again by the fifth bolt, and the third mounting seat 15 is locked to the base 4 by the sixth bolt.

[0065] It is worth noting that in this embodiment, the first pressing member 12 includes a second driving member 121 and a first pressing block 122. The second driving member 121 is used to drive the first pressing block 122 to move toward the first positioning block 11 in a first direction, thereby pressing the first hook 103. The second pressing member 13 includes a third driving member 131 and a second pressing block 132. The third driving member 131 is used to drive the second pressing block 132 to move toward the first positioning block 11 in a first direction, thereby pressing the second hook 104.

[0066] For example, in this embodiment, the first drive member 32, the second drive member 121 and the third drive member 131 are all quick clamps. Of course, in other optional embodiments, the first drive member 32, the second drive member 121 and the third drive member 131 can also be linear drive structures such as cylinders or electric cylinders. This embodiment does not impose specific limitations on this.

[0067] Furthermore, in this embodiment, the third positioning mechanism 3 also includes a guide plate 34, the first driving member 32 is mounted on the first mounting base 33, the guide plate 34 is fixedly connected to the push block 31, the first mounting base 33 is provided with a guide groove 331, the guide groove 331 extends along the second direction, and the guide plate 34 is slidably mounted in the guide groove 331. Thus, the first mounting base 33 can provide guidance for the movement of the push block 31, thereby ensuring that the push block 31 can accurately push against the first fork leg 101 and the second fork leg 102.

[0068] It is understood that the first pressing member 12 and the second mounting base 14, as well as the second pressing member 13 and the third mounting base 15, are also provided with the above-mentioned guide structure, so as to provide a guiding function for the movement of the first pressing block 122 and the second pressing block 132.

[0069] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A bicycle lower fork assembly jig, characterized in that, include: The first positioning mechanism (1) includes a first positioning block (11), a first pressing member (12), and a second pressing member (13). The first positioning block (11) is provided with a first boss (111) and a second boss (112) on both sides along the first direction. The first boss (111) and the second boss (112) are respectively used to hold the first claw (103) and the second claw (104). The first pressing member (12) and the second pressing member (13) are respectively used to push the first claw (103) and the second claw (104) so ​​that the first claw (103) and the second claw (104) press against both sides of the first positioning block (11) along the first direction. The second positioning mechanism (2) includes a second positioning block (21). The first positioning block (11) and the second positioning block (21) are arranged at intervals along a second direction, which is perpendicular to the first direction. The second positioning block (21) is provided with a first contouring groove (211) and a second contouring groove (212). The first contouring groove (211) and the second contouring groove (212) are arranged at intervals along the first direction and are respectively used to accommodate the first fork leg (101) and the second fork leg (102). The first fork leg (101) and the second fork leg (102) are respectively inserted into the first hook (103) and the second hook (104) along the second direction. The third positioning mechanism (3) is located on the side of the second positioning block (21) away from the first positioning block (11), and includes a push block (31) and a first driving member (32). The first driving member (32) can drive the push block (31) to move along the second direction and push the push block (31) against the first fork leg (101) and the second fork leg (102) together.

2. The bicycle lower fork assembly jig according to claim 1, characterized in that, The second positioning mechanism (2) further includes a third positioning block (22), which is configured to position a support rod (105) placed on the first fork (101) and the second fork (102).

3. The bicycle lower fork assembly jig according to claim 2, characterized in that, The third positioning block (22) is provided with a third contour groove (221) and a slot (222). The third contour groove (221) is used to accommodate the support rod (105), and the slot (222) is used to insert a positioning pin (223). The positioning pin (223) stops at the top of the support rod (105).

4. The bicycle lower fork assembly jig according to claim 1, characterized in that, The second positioning block (21) includes a first block (213) and a second block (214). The first block (213) and the second block (214) are arranged at intervals along the second direction. The first block (213) is provided with a first groove (2131) and a second groove (2132) on both sides of the first direction. The second block (214) is provided with a third groove (2141) and a fourth groove (2142) on both sides of the first direction. The first groove (2131) and the third groove (2141) are arranged on the same side and form the first contour groove (211). The second groove (2132) and the fourth groove (2142) are arranged on the same side and form the second contour groove (212).

5. The bicycle lower fork assembly jig according to claim 4, characterized in that, The second block (214) is disposed on the side of the first block (213) away from the first positioning block (11). The first block (213) is used to hold the middle part of the first fork leg (101) and the second fork leg (102), and the second block (214) is used to hold the ends of the first fork leg (101) and the second fork leg (102).

6. The bicycle lower fork assembly jig according to claim 4, characterized in that, The bicycle lower fork assembly fixture also includes a base (4), on which the first block (213) and the second block (214) are both mounted, and the positions of the first block (213) and the second block (214) in the second direction are adjustable.

7. The bicycle lower fork assembly jig according to claim 1, characterized in that, The push block (31) is shaped to the side facing the second positioning block (21) and the bottom bracket is used to connect the first fork leg (101) and the second fork leg (102).

8. The bicycle lower fork assembly jig according to claim 1, characterized in that, The third positioning mechanism (3) further includes a first mounting base (33) and a guide plate (34). The first driving member (32) is mounted on the first mounting base (33), and the guide plate (34) is fixedly connected to the push block (31). The first mounting base (33) is provided with a guide groove (331), which extends along the second direction. The guide plate (34) is slidably mounted in the guide groove (331).

9. The bicycle lower fork assembly jig according to claim 1, characterized in that, The bicycle lower fork assembly fixture also includes a base (4), and the first positioning mechanism (1) and the second positioning mechanism (2) are detachably mounted on the base (4).

10. The bicycle lower fork assembly jig according to claim 9, characterized in that, The first pressing member (12) and the second pressing member (13) are both installed on the base (4), and the positions of the first pressing member (12) and the second pressing member (13) in the first direction are adjustable.

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