Positioning tool for bicycle rear upper fork

Abstract

The utility model relates to bicycle technical field discloses positioning frock for bicycle rear upper fork, including base, the upside of base has vertical clamp, both sides of vertical clamp all are provided with horizontal clamp, the side away from vertical clamp of horizontal clamp rotatably connects with drive mechanism, the side away from drive mechanism of horizontal clamp is provided with recess, the side away from horizontal clamp of casing is provided with cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to a positioning fixture for bicycle rear upper forks. Background Technology

[0002] In today's society, with increasing emphasis on health, more and more people are choosing to cycle, achieving both commuting and physical exercise. With advancements in materials science, carbon fiber is widely used in the bicycle industry, offering significant advantages such as light weight, high strength, rigidity, and high plasticity. Among the components of a bicycle, the rear fork (or chainstay) is part of the rear fork, typically located above it, and together with the chainstay, supports and positions the rear wheel.

[0003] A search revealed Chinese Patent Publication No. CN213530891U, which discloses a fixture for positioning openings in the rear upper fork and lower fork of a bicycle. The fixture includes a spacing positioning component and an opening positioning component. The spacing positioning component comprises a first rod, a first locking component, and a second locking component, both of which are movably fitted onto the first rod. The opening positioning component comprises a second rod, a third locking component, and a fourth locking component, both of which are movably fitted onto the second rod. The ends of the second locking component away from the first rod and the third locking component away from the second rod are connected by pins. This utility model designs a fixture for positioning openings in the rear upper fork and lower fork of a bicycle, satisfying the requirements for limiting the distance between the two components and determining the position of the openings in the upper fork during assembly.

[0004] However, in actual use, the above-mentioned device is used to fix and drill holes in the upper and lower rear forks; when it is necessary to fix a single upper rear fork, it will shift, making it impossible to process the upper rear fork. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a positioning fixture for bicycle rear upper forks, which aims to solve the problem that when fixing a single rear upper fork in the prior art, displacement occurs, making it impossible to process the rear upper fork.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a positioning fixture for a bicycle rear upper fork, comprising a base, a vertical clamp on the upper side of the base, horizontal clamps on both sides of the vertical clamp, a drive mechanism rotatably connected to the side of the horizontal clamp away from the vertical clamp, the drive mechanism being fixedly connected to the upper side of the base, a groove being formed on the side of the horizontal clamp away from the drive mechanism, clamping bodies being slidably connected to the upper side of the vertical clamp and the horizontal clamps, the clamping bodies on the horizontal clamps being slidably connected to the inner sidewall of the groove, a housing being fixedly connected to both sides of the horizontal clamp, a cylinder being provided on the side of the housing away from the horizontal clamp, a push plate being fixedly provided at the output end of the cylinder, the sidewall of the push plate being slidably connected to the inner sidewall of the housing, a push rod being fixedly connected to the end of the push plate away from the cylinder, the side of the push rod away from the housing being in contact with the side of the clamping body.

[0007] The above technical solution involves placing one end of the bicycle's rear upper fork on a vertical clamp, fixing the lower end of the rear upper fork with the clamp, and then placing both sides of the rear upper fork in the grooves of two horizontal clamps, fixing the front and rear sides of the rear upper fork with the clamps inside the grooves, thereby achieving the fixation of the bicycle's rear upper fork.

[0008] As a further description of the above technical solution: A connecting rod is fixedly connected to the side of the horizontal clamp away from the vertical clamp, and the outer wall of the connecting rod is rotatably connected to one side of the drive mechanism.

[0009] The above technical solution allows for the following: after processing one end of the bicycle rear upper fork, the vertical clamp can be released from its fixation on the lower end of the rear upper fork. Then, through the drive mechanism, the horizontal clamp can be rotated, causing the lower end of the bicycle rear upper fork to rotate to the top, thereby improving the processing efficiency of the bicycle rear upper fork.

[0010] As a further description of the above technical solution: The driving mechanism includes a driving component and a support base. The support base is fixedly connected to the upper side of the base. The driving component is disposed inside the support base. One side of the driving component is fixedly connected to one end of the connecting rod. One side of the support base is rotatably connected to the outer wall of the connecting rod.

[0011] The above technical solution enables the connecting rod to rotate by the drive component, which in turn drives the horizontal clamp to rotate, thereby facilitating the processing of both ends of the bicycle rear upper fork.

[0012] As a further description of the above technical solution: The drive assembly includes a motor, and a gear one is fixedly mounted on the output end of the motor. The teeth of the gear one are meshed with a gear two. One side of the gear two is fixedly connected to one end of a connecting rod. A bearing is fixedly connected to the outer wall of the connecting rod, and the outer wall of the bearing passes through the side wall of the support base.

[0013] The above technical solution achieves the rotation of the horizontal clamp by driving the motor, fixing the bearing and connecting rod, and connecting the bearing and support base.

[0014] As a further description of the above technical solution: The clamp includes a spring, one end of which is fixedly connected to a clamping rod, and the end of the clamping rod away from the spring is fixedly connected to a clamping head.

[0015] The above technical solution uses a spring to allow the clamp to contract when pressure is applied to the bicycle's rear upper fork. By using multiple clamps in contact with the bicycle's rear upper fork and by varying the contraction distances of the clamps, the clamps are able to secure the bicycle's rear upper fork.

[0016] As a further description of the above technical solution: One end of the spring on the groove is fixedly connected to the push rod, and the spring on the vertical clamp is fixedly connected to the inside of the vertical clamp.

[0017] The above technical solution achieves the function of fixing the clamp on the bicycle rear upper fork by moving the push rod.

[0018] As a further description of the above technical solution: The base is equipped with a second cylinder, and the output end of the second cylinder is fixedly located on the lower side of the vertical clamp.

[0019] The above technical solution allows the vertical clamp to move up and down via cylinder two. When it is necessary to process the lower end of the bicycle rear upper fork, simply move the vertical clamp downwards to rotate the bicycle rear upper fork.

[0020] As a further description of the above technical solution: A controller is installed on the support base, and the controller is electrically connected to cylinder one, motor and cylinder two.

[0021] The above technical solution achieves automation of the positioning fixture through the cooperation between the controller, cylinder one, motor, and cylinder two.

[0022] This utility model has the following beneficial effects: 1. In this utility model, the base provides support for the drive mechanism and the vertical clamp, the drive mechanism provides support for the horizontal clamp, and in turn provides support for the housing and cylinder one. Through the sliding connection of cylinder one, push plate and housing, the connection of push plate and push rod, and the connection of push rod and clamp body, the horizontal movement of clamp body in groove is realized, so that clamp body in groove fixes the bicycle rear upper fork around its perimeter, and the clamp body on the vertical clamp fixes one end of the bicycle rear upper fork, thereby solving the problem that the existing technology will cause displacement when fixing a single rear upper fork, making it impossible to process the rear upper fork.

[0023] 2. In this utility model, the base provides support for the support seat, the support seat provides support for the motor, and the motor output drives the first gear to rotate. The meshing connection between the first gear and the second gear drives the second gear to rotate. The connection between the connecting rod and the second gear, the connection between the connecting rod and the bearing, and the connection between the bearing and the support seat drives the connecting rod to rotate, thereby realizing the driving function of the drive component, causing the horizontal clamp to rotate, and through the second cylinder and the vertical clamp, the position of both ends of the bicycle rear upper fork is adjusted. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the positioning fixture for the bicycle rear upper fork proposed in this utility model. Figure 2 This is a schematic diagram of the internal structure of the base of the positioning fixture for the bicycle rear upper fork proposed in this utility model. Figure 3 This is a schematic diagram of the internal structure of the drive mechanism of the positioning fixture for the bicycle rear upper fork proposed in this utility model. Figure 4 This is a schematic diagram of the internal structure of the horizontal clamp of the positioning fixture for the bicycle rear upper fork proposed in this utility model.

[0025] Legend: 1. Horizontal clamp; 2. Housing; 3. Cylinder 1; 4. Connecting rod; 5. Drive mechanism; 50. Drive assembly; 500. Gear 1; 501. Bearing; 502. Gear 2; 503. Motor; 51. Support base; 6. Base; 7. Vertical clamp; 8. Clamp body; 80. Clamping rod; 81. Chuck; 82. Spring; 9. Controller; 10. Groove; 11. Cylinder 2; 12. Push rod; 13. Push plate. Detailed Implementation

[0026] 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.

[0027] Reference Figure 1 and Figure 4 An embodiment of this utility model provides a positioning fixture for a bicycle rear upper fork, including a base 6, a vertical clamp 7 on the upper side of the base 6, horizontal clamps 1 on both sides of the vertical clamp 7, a drive mechanism 5 rotatably connected to the side of the horizontal clamp 1 away from the vertical clamp 7, the drive mechanism 5 fixedly connected to the upper side of the base 6, a groove 10 is provided on the side of the horizontal clamp 1 away from the drive mechanism 5, a clamp body 8 is slidably connected to the upper side of the vertical clamp 7 and the horizontal clamp 1, the clamp body 8 on the horizontal clamp 1 is slidably connected to the inner side wall of the groove 10, a housing 2 is fixedly connected to both sides of the horizontal clamp 1, a cylinder 3 is provided on the side of the housing 2 away from the horizontal clamp 1, a push plate 13 is fixedly provided at the output end of the cylinder 3, the side wall of the push plate 13 is slidably connected to the inner side wall of the housing 2, a push rod 12 is fixedly connected to the end of the push plate 13 away from the cylinder 3, the side of the push rod 12 away from the housing 2 is in contact with the side of the clamp body 8; In this embodiment, Figure 1 The front, back, left, and right are the orientations. Specifically, when using this positioning fixture, there are several clamps 8 in the groove 10 and on the vertical clamp 7. The base 6 provides support for the drive mechanism 5 and the vertical clamp 7, the drive mechanism 5 provides support for the horizontal clamp 1, the horizontal clamp 1 provides support for the housing 2, and in turn, provides support for the cylinder 3. First, driven by the output end of cylinder 3, the push plate 13 is moved away from the horizontal clamp 1 through the sliding connection between the push plate 13 and the housing 2. This causes the push rod 12 to move horizontally. Through the connection between the push rod 12 and the clamp 8, the clamp 8 is moved away from the groove 10. The bicycle rear upper fork passes through the two grooves 10 of the horizontal clamp 1 from top to bottom, so that the two sides of the bicycle rear upper fork are inside the grooves 10. Then, one end of the bicycle rear upper fork is placed on the vertical clamp 7 and squeezed against the clamp 8. The clamp 8 fixes the lower end of the bicycle rear upper fork. Driven by the output end of cylinder 3, the push plate 13 is moved closer to the horizontal clamp 1. This causes the push rod 12 to move horizontally, so that the clamp 8 abuts against the bicycle rear upper fork. This fixes the bicycle rear upper fork around its perimeter, thus solving the problem that the existing technology causes displacement when fixing a single rear upper fork, making it impossible to process the rear upper fork.

[0028] Reference Figure 1 A connecting rod 4 is fixedly connected to the side of the horizontal clamp 1 away from the vertical clamp 7, and the outer wall of the connecting rod 4 is rotatably connected to one side of the drive mechanism 5. Specifically, the drive mechanism 5 provides support for the connecting rod 4, which in turn provides support for the horizontal clamp 1. After the processing of one end of the bicycle rear upper fork is completed, the drive mechanism 5 drives the connecting rod 4 to rotate, and through the fixed connection between the connecting rod 4 and the horizontal clamp 1, the horizontal clamp 1 is driven to rotate, thereby realizing the adjustment of the position of both ends of the bicycle rear upper fork.

[0029] Reference Figure 1 and Figure 3 The drive mechanism 5 includes a drive assembly 50 and a support base 51. The support base 51 is fixedly connected to the upper side of the base 6. The drive assembly 50 is disposed inside the support base 51. One side of the drive assembly 50 is fixedly connected to one end of the connecting rod 4. One side of the support base 51 is rotatably connected to the outer wall of the connecting rod 4. Specifically, one end of the connecting rod 4 passes through one side of the support base 51 and is located inside the support base 51. It is connected to the output end of the drive assembly 50. The base 6 provides support for the support base 51, which in turn provides support for the drive assembly 50. Driven by the drive assembly 50 and through the rotational connection between the support base 51 and the connecting rod 4, the connecting rod 4 is rotated, which helps to adjust the position of both ends of the bicycle's rear upper fork.

[0030] Reference Figure 1 and Figure 3 The drive assembly 50 includes a motor 503. A gear 500 is fixedly installed at the output end of the motor 503. A gear 502 is meshed with the tooth end of the gear 500. One side of the gear 502 is fixedly connected to one end of the connecting rod 4. A bearing 501 is fixedly connected to the outer wall of the connecting rod 4. The outer wall of the bearing 501 passes through the side wall of the support base 51. Specifically, the inner ring and outer ring of bearing 501 rotate relative to each other, which is the existing technology. The support base 51 provides support for motor 503. The output end of motor 503 drives gear 1 500 to rotate. Through the meshing connection between gear 1 500 and gear 2 502, gear 2 502 is driven to rotate. Through the connection between gear 2 502 and the inner ring of bearing 501, and the fixed connection between the outer ring of bearing 501 and support base 51, the connecting rod 4 is driven to rotate, thereby realizing the effect of rotating horizontal clamp 1.

[0031] Reference Figure 1 , Figure 2 and Figure 4 The clamp 8 includes a spring 82, one end of which is fixedly connected to a clamping rod 80, and the end of the clamping rod 80 away from the spring 82 is fixedly connected to a clamp 81; Specifically, there are several clamps 8, and the clamp head 81 is made of rubber to avoid scratching the bicycle rear upper fork during clamping. Through the force applied to the bicycle rear fork by multiple clamps 8 and the different compression degrees of the springs 82 on different clamps 8, the front and rear sides of the bicycle rear upper fork are fixed by the clamps 8. The clamps 8 that are not in contact with the bicycle rear upper fork in the direction of the horizontal clamp 1 are fully extended to limit the left and right sides of the bicycle rear upper fork. Through the compression of the bicycle rear upper fork against the vertical clamp 7, the clamps 8 on the vertical clamp 7 are made to enter the interior of the bicycle rear upper fork or fit against the side wall of the bicycle rear upper fork, thereby fixing the lower end of the bicycle rear upper fork, thus realizing the function of clamps 8 fixing the bicycle rear upper fork.

[0032] Reference Figure 2 and Figure 4 One end of the spring 82 on the groove 10 is fixedly connected to the push rod 12, and the spring 82 on the vertical clamp 7 is fixedly connected to the inside of the vertical clamp 7. Specifically, the horizontal movement of the push rod 12 drives the spring 82 to move, causing the clamp rod 80 to move in the same direction, which causes the clamp 81 to press against the bicycle's rear upper fork, thereby achieving the function of fixing the bicycle's rear upper fork with the horizontal clamp 1 and the vertical clamp 7.

[0033] Reference Figure 2 The base 6 is equipped with a second cylinder 11, and the output end of the second cylinder 11 is fixedly installed on the lower side of the vertical clamp 7. Specifically, the base 6 provides support for the cylinder 11, which in turn provides support for the vertical clamp 7. When it is necessary to adjust the position of the two ends of the bicycle rear upper fork, the output end of the cylinder 11 drives the vertical clamp 7 to move downward, so that the vertical clamp 7 releases the bicycle rear upper fork from its fixation. Then, the drive mechanism 5 drives the horizontal clamp 1 to rotate, so that the lower end of the bicycle rear upper fork rotates to the upper end, thereby helping to improve the convenience of processing the two ends of the bicycle rear upper fork.

[0034] Reference Figure 1 , Figure 2 and Figure 3 A controller 9 is installed on the support base 51. The controller 9 is electrically connected to cylinder 3, motor 503, and cylinder 11. Specifically, the controller 9 can use a programmable PLC controller, which is the existing technology. When using this positioning fixture, the bicycle rear upper fork is passed through the groove 10 and placed on the vertical clamp 7, so that the clamp 8 on the vertical clamp 7 fixes it. The controller 9 controls the drive of the output end of the cylinder 3, so that the clamp 8 in the groove 10 fixes the bicycle rear upper fork, thereby completing the function of fixing the bicycle rear upper fork. The controller 9 controls the output of cylinder 11 to drive the vertical clamp 7 downward. The controller 9 also controls the output of motor 503 to drive the horizontal clamp 1, causing the lower end of the bicycle's rear upper fork to rotate upward. Then, the controller 9 controls the output of cylinder 11 to drive the vertical clamp 7 upward, causing the clamp 8 on the vertical clamp 7 to fix one end of the bicycle's rear upper fork. This completes the adjustment of the position of both ends of the bicycle's rear upper fork, thus realizing the automation of this positioning fixture.

[0035] Working principle: When using this positioning fixture, the two sides of the bicycle rear upper fork are passed through the two grooves 10 on the horizontal clamp 1, one end of which is placed on the vertical clamp 7, and force is applied to the vertical clamp 7. The clamp 8 that is in contact with the bicycle rear upper fork is squeezed and retracted into the vertical clamp 7 under the action of the spring 82, while the clamp 8 that is not in contact with the bicycle rear upper fork is attached to its inner and outer walls, thereby fixing one end of the bicycle rear upper fork. Controlled by controller 9 and driven by the output of cylinder 3, the push plate 13 is moved towards the groove 10 through the sliding connection between the push plate 13 and the housing 2. This causes the push rod 12 to move horizontally. Through the connection between the push rod 12 and the clamp 8, the clamp 8 abuts against the bicycle rear upper fork. Because the contact points between multiple clamps 8 and the bicycle rear upper fork are different, the springs 82 in some clamps 8 that are in contact with the bicycle rear upper fork are fully compressed, thus fixing the bicycle rear upper fork in place. The clamps 8 that are not in contact with the bicycle rear upper fork limit the left and right sides of the bicycle rear upper fork, thereby achieving the fixation of the bicycle rear upper fork around its perimeter. This solves the problem that in the prior art, when fixing a single rear upper fork, displacement occurs, making it impossible to process the rear upper fork.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning fixture for a bicycle rear upper fork, including a base (6), characterized in that: The base (6) has a vertical clamp (7) on its upper side, and horizontal clamps (1) are provided on both sides of the vertical clamp (7). A drive mechanism (5) is rotatably connected to the side of the horizontal clamp (1) away from the vertical clamp (7). The drive mechanism (5) is fixedly connected to the upper side of the base (6). A groove (10) is provided on the side of the horizontal clamp (1) away from the drive mechanism (5). Clamping bodies (8) are slidably connected to the upper side of the vertical clamp (7) and the horizontal clamp (1). The clamping bodies (8) on the horizontal clamp (1) slide... The horizontal clamp (1) is connected to the inner wall of the groove (10). Both sides of the horizontal clamp (1) are fixedly connected to the housing (2). A cylinder (3) is provided on the side of the housing (2) away from the horizontal clamp (1). A push plate (13) is fixedly provided at the output end of the cylinder (3). The side wall of the push plate (13) and the inner wall of the housing (2) are slidably connected. A push rod (12) is fixedly connected at the end of the push plate (13) away from the cylinder (3). The side of the push rod (12) away from the housing (2) and the side of the clamp (8) are in contact.

2. The positioning fixture for a bicycle rear upper fork according to claim 1, characterized in that: The horizontal clamp (1) is fixedly connected to a connecting rod (4) on the side away from the vertical clamp (7), and the outer wall of the connecting rod (4) is rotatably connected to one side of the drive mechanism (5).

3. The positioning fixture for a bicycle rear upper fork according to claim 1, characterized in that: The drive mechanism (5) includes a drive assembly (50) and a support base (51). The support base (51) is fixedly connected to the upper side of the base (6). The drive assembly (50) is disposed inside the support base (51). One side of the drive assembly (50) is fixedly connected to one end of the connecting rod (4). One side of the support base (51) is rotatably connected to the outer wall of the connecting rod (4).

4. The positioning fixture for a bicycle rear upper fork according to claim 3, characterized in that: The drive assembly (50) includes a motor (503), and a gear one (500) is fixedly provided at the output end of the motor (503). The teeth of the gear one (500) are meshed with a gear two (502). One side of the gear two (502) is fixedly connected to one end of the connecting rod (4). A bearing (501) is fixedly connected to the outer wall of the connecting rod (4). The outer wall of the bearing (501) passes through the side wall of the support seat (51).

5. The positioning fixture for a bicycle rear upper fork according to claim 4, characterized in that: The clamp (8) includes a spring (82), one end of which is fixedly connected to a clamping rod (80), and the end of the clamping rod (80) away from the spring (82) is fixedly connected to a clamp head (81).

6. The positioning fixture for a bicycle rear upper fork according to claim 5, characterized in that: One end of the spring (82) on the groove (10) is fixedly connected to the push rod (12), and the spring (82) on the vertical clamp (7) is fixedly connected inside the vertical clamp (7).

7. The positioning fixture for a bicycle rear upper fork according to claim 1, characterized in that: The base (6) is equipped with a second cylinder (11), and the output end of the second cylinder (11) is fixedly installed on the lower side of the vertical clamp (7).

8. The positioning fixture for a bicycle rear upper fork according to claim 3, characterized in that: A controller (9) is provided on the support base (51), and the controller (9) is electrically connected to cylinder one (3), motor (503) and cylinder two (11).

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