Clamping mechanism for bicycle accessory machining

Abstract

The utility model discloses a clamping mechanism for bicycle accessory machining, and relates to the technical field of bicycle accessory machining. Comprising an L-shaped supporting seat, a connecting rod is fixed to the top of the left side of the L-shaped supporting seat, and a socket rod is arranged on a rod body of the connecting rod; at least two clamping assemblies are arranged on a rod body of the socket rod, a driving piece is arranged in the socket rod, and after the hollow cylindrical part is inserted into the socket rod, the driving piece drives the clamping assemblies to clamp the hollow cylindrical part. The clamping device is provided with the socket rod, the clamping assembly and the abutting assembly, after the hollow cylindrical part is inserted into the socket rod, the inner wall of the hollow cylindrical part is extruded through the abutting assembly, the interior of the hollow cylindrical part is clamped, and the end of the left side of the hollow cylindrical part is extruded through the abutting assembly; and therefore, the socket rod is further prevented from rotating due to radial stress, and the machining stability of the hollow cylindrical part is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle accessory processing, in particular to a clamping mechanism for bicycle accessory processing. Background Art

[0002] The entire bicycle frame consists of multiple cylindrical tubes, which need to be cut, end-face polished, and painted during processing. During these processes, corresponding clamping mechanisms are required for fixation.

[0003] A Chinese utility model patent, with authorization announcement number CN210790682U, discloses a clamping mechanism for processing bicycle parts. The clamping mechanism for processing bicycle parts supports the cylindrical part by setting a support block, and then pushes the slides on both sides to slide on the transverse guide rail through the setting of the electric push rod, so that the bearing and the fixed sleeve are respectively plugged into the left and right ends of the cylindrical part, so that the cylindrical part is further limited. When painting is required, the motor is controlled to rotate to rotate the fixed sleeve on the left side of the disc. The rubber pad inside the fixed sleeve is set to increase the friction between it and the cylindrical part, so that the cylindrical part rotates under the drive of the fixed sleeve, thereby completing 360-degree painting.

[0004] The above solution solves the technical problems raised in its background technology, but in actual application, the above solution still has certain defects. When the device cuts the steel pipe, it is necessary to clamp the outer side of the steel pipe through a clamping block. During cutting, since the radial force applied to the steel pipe is large, it is necessary to increase the clamping force of the clamping block to ensure the stability of the steel pipe. Excessive clamping force will cause damage to the surface of the steel pipe, thereby reducing product quality. Utility Model Content

[0005] The purpose of the present utility model is to provide a clamping mechanism for processing bicycle accessories to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a clamping mechanism for processing bicycle parts, comprising an L-shaped support seat, a connecting rod fixed to the top left side of the L-shaped support seat, and a socket rod provided on the rod body of the connecting rod;

[0007] At least two clamping assemblies are provided on the rod body of the socket rod, and a driving member is provided in the socket rod. After the hollow cylindrical part is inserted into the socket rod, the driving member drives the clamping assembly to clamp the hollow cylindrical part.

[0008] Preferably, the driving member includes a screw and a motor, the output end of the motor is fixed to the end of the screw, the screw includes a left screw and a right screw with opposite thread directions, and a screw block adapted thereto is movably screwed on the rod body of the left screw and the right screw respectively;

[0009] The inner wall of the socket rod is provided with a limiting groove, and the side surface of the wire block is fixed with a limiting block.

[0010] Preferably, the clamping assembly comprises a plurality of collets movably inserted with the socket rod, the inner side end of the collet is fixed with a horizontal plate, the spring is fixed between the socket rod and the horizontal plate, and the opposite sides of the horizontal plate are provided with inclined surfaces.

[0011] Preferably, the left side of the socket rod is provided with a pressing assembly, and the left side end surface of the hollow cylindrical part is pressed through the pressing assembly.

[0012] Preferably, the pressing assembly comprises a movable groove provided on the rod body of the socket rod, and a pressing plate movably connected in the movable groove.

[0013] An electric telescopic rod is arranged between the pressing plate and the L-shaped support seat, and the two sides of the electric telescopic rod are movably connected with the pressing plate and the L-shaped support seat.

[0014] Preferably, the side surface of the pressing plate is fixed with an elastic pad.

[0015] Preferably, the connecting rod is movably connected with the stand, the top of the L-shaped support seat is fixed with a horizontal plate, and when the socket rod is parallel with the bottom of the L-shaped support seat, the horizontal plate is in contact with the top of the stand.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The bicycle accessory machining clamping mechanism is provided with a socket rod, a clamping assembly and a pressing assembly, the hollow cylindrical part is clamped on the socket rod, the inner wall of the hollow cylindrical part is pressed through the pressing assembly, the hollow cylindrical part is clamped internally, the left side end of the hollow cylindrical part is pressed through the pressing assembly, the socket rod is further prevented from rotating due to radial stress, and the stability during the machining of the hollow cylindrical part is improved.

[0018] In addition, the clamping assembly and the pressing assembly clamp the inner wall and the end of the hollow cylindrical part respectively, the surface of the hollow cylindrical part is not damaged, and the product quality is improved. DRAWINGS

[0019] Figure 1 It is the right side view of the utility model;

[0020] Figure 2 It is the left side view of the utility model;

[0021] Figure 3 It is the half cutaway view of the utility model;

[0022] Figure 4 It is Figure 3Enlarged view of part A;

[0023] Figure 5 Detail of the pressure plate.

[0024] In the figure: 1. L-shaped support base; 2. Connecting rod; 3. Vertical seat; 4. Socket rod; 5. Clamping assembly; 501. Chuck; 502. Cross plate; 503. Spring; 504. Wire block; 6. Pressure assembly; 601. Pressure plate; 602. Electric telescopic rod; 603. Elastic pad; 701. Screw rod; 702. Motor; 8. Horizontal plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The clamping mechanism is used in bicycle production to clamp hollow steel tubes such as crossbeams and connecting rods of bicycles. Example 1

[0027] like Figures 1-4 As shown, the utility model provides a technical solution: a clamping mechanism for processing bicycle accessories, including an L-shaped support seat 1, a connecting rod 2 is fixed to the left top of the L-shaped support seat 1, and a socket rod 4 is provided on the rod body of the connecting rod 2. In this embodiment, the socket rod 4 is fixed to the connecting rod 2, and the socket rod 4 is parallel to the bottom of the L-shaped support seat 1.

[0028] At least two clamping assemblies 5 are provided on the rod body of the socket rod 4. A driving member is provided inside the socket rod 4. When the hollow cylindrical part is inserted into the socket rod 4, the driving member drives the clamping assembly 5 to clamp the hollow cylindrical part.

[0029] Specifically, such as Figure 3As shown, the driving member includes a screw rod 701 and a motor 702. The motor 702 is preferably a servo motor with controllable speed and relatively accurate position accuracy. The output end of the motor 702 is fixed to the end of the screw rod 701, wherein the screw rod 701 includes a left screw rod and a right screw rod with opposite thread directions, and a screw block 504 that matches it is movably screwed on the rod body of the left screw rod and the right screw rod. To ensure that the screw block 504 can move along the rod direction of the screw rod 701, a limiting groove is provided on the inner wall of the socket rod 4, and a limiting block is fixed on the side of the screw block 504, and the limiting groove is matched with the limiting block. It should be understood that the number of screw blocks 504 is equal to the number of clamping assemblies 5. In this embodiment, the clamping assemblies 5 are set to two, so the number of screw blocks 504 is also set to two. When the motor 702 drives the screw rod 701 to rotate, the two screw blocks 504 move toward each other.

[0030] like Figure 3 and Figure 4 As shown, the clamping assembly 5 includes a plurality of chucks 501 movably connected to the socket rod 4. In this embodiment, the number of chucks 501 is set to four, and the four chucks 501 are arranged in a circle on the outside of the socket rod 4. A cross plate 502 is fixed to the inner end of the chuck 501, and a spring 503 is fixed between the socket rod 4 and the cross plate 502. Under the elastic force of the spring 503, the four socket rods 4 are close to each other in the initial state. In addition, slopes are provided on the opposite sides of the cross plate 502 and the wire block 504.

[0031] Specifically, when processing a hollow cylindrical part, first, the left side rod of the hollow cylindrical part is socketed on the rod of the socket rod 4, the controller controls the motor 702 to rotate, the two wire blocks 504 move toward each other, and the side of the wire block 504 is squeezed against the cross plate 502. At this time, the spring 503 contracts, and the four chucks 501 move outward, thereby squeezing the inner wall of the hollow cylindrical part to achieve clamping of the hollow cylindrical part, and finally the hollow cylindrical part is subjected to subsequent processing. Example 2

[0032] The difference between this embodiment and the first embodiment is that Figure 1-3 and Figure 5 As shown, a pressing assembly 6 is provided on the left side of the socket rod 4, and the pressing assembly 6 is used to squeeze the left end face of the hollow cylindrical part.

[0033] Specifically, such as Figure 3As shown, the abutting assembly 6 comprises a movable slot formed on the rod body of the socket rod 4, and the abutting plate 601 is movably connected in the movable slot. In this embodiment, the length of the movable slot is 2-5 times the thickness of the abutting plate 601. The electric telescopic rod 602 is arranged between the abutting plate 601 and the L-shaped support base 1, and the two sides of the electric telescopic rod 602 are movably connected with the abutting plate 601 and the L-shaped support base 1, respectively.

[0034] In order to increase the friction between the abutting assembly 6 and the left end face of the hollow cylindrical part, thereby preventing the socket rod 4 from rotating under the radial force, the elastic pad 603 made of rubber material is fixed to the side of the abutting plate 601.

[0035] Specifically, when the hollow cylindrical part is machined, first, the left rod body of the hollow cylindrical part is inserted into the rod body of the socket rod 4, and the left end face of the hollow cylindrical part abuts against the elastic pad 603. Then, the internal clamping of the hollow cylindrical part is performed by the abutting assembly 6. The controller controls the electric telescopic rod 602 to extend, and the electric telescopic rod 602 drives the abutting plate 601 to move in the movable slot when the electric telescopic rod 602 extends, until the elastic pad 603 is pressed against the end face of the hollow cylindrical part. Embodiment 3

[0036] Different from the first and second embodiments, the connecting rod 2 is movably connected with the stand 3, and the horizontal plate 8 is fixed to the top of the L-shaped support base 1. When the socket rod 4 is parallel to the bottom of the L-shaped support base 1, the horizontal plate 8 contacts the top of the stand 3, that is, the stand 3 cannot rotate counterclockwise at this time.

[0037] Specifically, when the hollow cylindrical part is installed, the clamping of the hollow cylindrical part is performed by the clamping assembly 5. The controller controls the electric telescopic rod 602 to extend, and the electric telescopic rod 602 drives the abutting plate 601 to move in the movable slot when the electric telescopic rod 602 extends, until the elastic pad 603 is pressed against the end face of the hollow cylindrical part. Since the horizontal plate 8 limits the stand 3, the electric telescopic rod 602 continuously extends, the socket rod 4 rotates counterclockwise around the connecting rod 2, and the socket rod 4 is horizontal to the bottom of the L-shaped support base 1. When the machining is completed, the motor 702 reverses rotation, the clamping assembly 5 releases the limitation of the hollow cylindrical part, the controller controls the electric telescopic rod 602 to contract, and the socket rod 4 rotates clockwise around the connecting rod 2. At this time, the socket rod 4 is inclined downward, and the hollow cylindrical part moves downward along the socket rod 4 under the action of gravity, thereby facilitating the work to take out the material, reducing the manpower, and further improving the practicability of the device.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the accompanying embodiments and their equivalents.

Claims

1. A clamping mechanism for processing bicycle parts, comprising an L-shaped support seat (1), characterized in that: A connecting rod (2) is fixed to the top of the left side of the L-shaped support seat (1), and a socket rod (4) is provided on the rod body of the connecting rod (2); At least two clamping assemblies (5) are provided on the rod body of the socket rod (4), and a driving member is provided in the socket rod (4). After the hollow cylindrical part is inserted into the socket rod (4), the driving member drives the clamping assembly (5) to clamp the hollow cylindrical part.

2. The clamping mechanism for bicycle parts processing according to claim 1, characterized in that: The driving member comprises a screw rod (701) and a motor (702), wherein the output end of the motor (702) is fixed to the end of the screw rod (701), and the screw rod (701) comprises a left screw rod and a right screw rod with opposite thread directions, and a thread block (504) adapted thereto is movably screwed onto the rod body of the left screw rod and the right screw rod respectively; A limiting groove is provided on the inner wall of the socket rod (4), a limiting block is fixed on the side of the wire block (504), and the limiting groove is adapted to the limiting block.

3. The clamping mechanism for bicycle parts processing according to claim 2, characterized in that: The clamping assembly (5) comprises a plurality of clamps (501) movably connected to the socket rod (4), a transverse plate (502) being fixed to the inner end of the clamp (501), a spring (503) being fixed between the socket rod (4) and the transverse plate (502), and slopes being provided on opposite sides of the transverse plate (502) and the wire block (504).

4. The clamping mechanism for bicycle parts processing according to claim 1, characterized in that: A pressing assembly (6) is provided on the left side of the socket rod (4), and the pressing assembly (6) is used to press the left end face of the hollow cylindrical part.

5. The clamping mechanism for bicycle parts processing according to claim 4, characterized in that: The pressing assembly (6) comprises a movable groove provided on the rod body of the socket rod (4), wherein a pressing plate (601) is movably connected in the movable groove; An electric telescopic rod (602) is provided between the pressing plate (601) and the L-shaped support seat (1), and two sides of the electric telescopic rod (602) are movably connected to the pressing plate (601) and the L-shaped support seat (1) respectively.

6. The clamping mechanism for processing bicycle parts according to claim 5, characterized in that: An elastic pad (603) is fixed to the side of the pressure plate (601).

7. The clamping mechanism for processing bicycle parts according to claim 5, characterized in that: The connecting rod (2) is movably connected to the stand (3), and a horizontal plate (8) is fixed to the top of the L-shaped support seat (1). When the socket rod (4) is parallel to the bottom of the L-shaped support seat (1), the horizontal plate (8) contacts the top of the stand (3).

Images