Correcting device for bicycle rim production

Abstract

The utility model provides a correcting device for bicycle rim production, which comprises a working table and is characterized in that the left side and the right side of the working table are fixedly connected with fixing plates, one side of each fixing plate is fixedly connected with a telescopic cylinder, the telescopic end of each telescopic cylinder is fixedly connected with a clamping block, and the clamping block is fixedly connected with a clamp. A plurality of supporting columns are arranged on the surface of the workbench between the two fixing plates, and each supporting column is rotationally connected with a first rotating roller through a bearing; an electric push rod and a jacking column are arranged in a pressing plate, the jacking column is used for positioning an inner ring of a rim, so that the whole rim is driven to rotate under the action of a rotating motor, an external first rotating roller is used for correcting and rounding an outer ring of the rim, and when the inner ring and the outer ring of the rim are qualified in rounding, parts such as spokes are mounted, so that mounting is more convenient; the stability of the bicycle is improved.

Description

Technical Field

[0001] This utility model relates to the field of bicycle production and testing technology, and in particular to a calibration device for bicycle rim production. Background Technology

[0002] Bicycles are an important means of transportation in people's daily lives. They are highly portable and have a significant advantage for short distances.

[0003] The main steps in bicycle production are as follows: First, material preparation and pretreatment; then, frame manufacturing, which is the core part of the bicycle; next, component production and assembly, where individual components are assembled onto the frame; then, quality testing, which is a very important step, requiring measurements of the frame, wheels, seat, etc.; and finally, painting and assembly.

[0004] Patent CN213223826U discloses a bicycle wheel roundness correction device, including a base and a correction frame fixedly installed on the top of the base. The top of the base has a groove, and a vertical plate is fixedly installed at the bottom of the correction frame, located within the groove. A drive frame is slidably installed in the groove on the front side of the vertical plate. A drive motor is fixedly installed on the front side of the vertical plate, and the output shaft of the drive motor extends into the drive frame and is fixedly fitted with an incomplete gear. An upper rack and a lower rack are fixedly installed on the top and bottom inner walls of the drive frame, respectively, and the incomplete gear alternately meshes with the upper and lower racks for transmission. This invention uses mechanized operation to correct previously deformed wheel rims, restoring them to their original roundness, avoiding the inconvenience of manual correction, reducing the labor intensity of workers, and greatly improving work efficiency.

[0005] However, this patented technology also has the following problems: when adjusting the bicycle rim, the patented technology does not remove the spokes inside the wheel, which causes the tension of the spokes to change during the adjustment process, resulting in changes in tightness and reducing the stability of the bicycle; at the same time, the adjustment device only adjusts the outer rim of the wheel, without adjusting the inner rim, resulting in low accuracy in the adjustment. Utility Model Content

[0006] In view of the above technical problems, this utility model provides a calibration device for bicycle rim production to improve the roundness accuracy.

[0007] This utility model provides a calibration device for bicycle rim production, comprising a workbench. The workbench is characterized by fixed plates fixedly connected to its left and right sides, a telescopic cylinder fixedly connected to one side of each fixed plate, a clamping block fixedly connected to the telescopic end of each telescopic cylinder, multiple support columns arranged on the workbench surface between two fixed plates, each support column being rotatably connected to a first rotating roller via a bearing, a rotary motor fixedly connected to the center of the rear side of the workbench, the output end of the rotary motor connected to a turntable, a hexagonal positioning plate fixedly connected to the turntable, multiple support plates evenly distributed on the outer surface of the hexagonal positioning plate, a toothed plate connected to every two support plates via bolts, a groove provided on the top surface of each toothed plate, an electric push rod fixedly connected to the center of the bottom of the groove, a top column fixedly connected to the telescopic end of the electric push rod, a second rotating roller arranged in front of the top column, the second rotating roller being connected to the toothed plate via a positioning column and a bearing.

[0008] The number of support columns is three, and the three support columns are arranged in an equilateral triangle shape.

[0009] The two clamps are positioned opposite each other.

[0010] The beneficial effects of this utility model are as follows: This utility model is a calibration device for bicycle rim production. It is equipped with components such as a rotary motor, turntable, hexagonal positioning plate, support plate, and toothed plate. The drive motor drives the turntable to rotate, which in turn drives the hexagonal positioning plate and its components to rotate. At the same time, the telescopic cylinder drives the clamping block to clamp the rim, thereby achieving calibration and rounding of the inner rim. By setting an electric push rod and a top column inside the pressure plate, the top column positions the inner rim, so that it drives the entire rim to rotate under the action of the rotary motor. The first external roller calibrates and rounds the outer rim. After the inner and outer rims are both calibrated to the required roundness, the spokes and other components can be installed, which is more convenient for installation and improves the stability of the bicycle. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the front side view of the structure when the present invention is in use;

[0012] Figure 2 This is a schematic diagram of the rear side view of the present invention;

[0013] Figure 3 This is a top-side view of the structure of this utility model in use;

[0014] Figure 4 This is a schematic diagram of the structure of this utility model;

[0015] Figure 5 This is a schematic diagram of a partial structural connection of the present invention;

[0016] Figure 6 for Figure 5A detailed view of the partial structure excluding the second roller.

[0017] Reference numerals in the attached drawings: 1-Workbench; 11-Fixed plate; 12-Telescopic cylinder; 13-Clamping block; 14-Support column; 15-First rotating roller; 2-Rotating motor; 20-Rim body; 3-Turntable; 4-Hexagonal positioning plate; 5-Support plate; 6-Gear plate; 7-Bolt; 8-Positioning column; 9-Second rotating roller; 10-Electric push rod; 101-Top column. Detailed Implementation Example 1

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0019] like Figure 1-3 As shown, this utility model provides a calibration device for bicycle rim production, including a workbench 1. The workbench 1 is characterized by fixed plates 11 fixedly connected to its left and right sides. A telescopic cylinder 12 is fixedly connected to one side of each fixed plate 11. A clamping block 13 is fixedly connected to the telescopic end of each telescopic cylinder 12. Multiple support columns 14 are arranged on the surface of the workbench 1 between two fixed plates 11. Each support column 14 is rotatably connected to a first rotating roller 15 via a bearing. A rotary motor 2 is fixedly connected to the center of the rear side of the workbench 1. The output end of the rotary motor 2 is connected to a turntable 3. A hexagonal positioning plate 4 is fixedly connected to the turntable 3. Multiple support plates 5 are evenly distributed on the outer surface of the hexagonal positioning plate 4. A toothed plate 6 is connected between every two support plates 5 via bolts 7. A groove is provided on the top surface of each toothed plate 6. An electric push rod 10 is fixedly connected to the center of the bottom of the groove. A top column 101 is fixedly connected to the telescopic end of the electric push rod 10. A second rotating roller 9 is arranged in front of the top column 101. The second rotating roller 9 is connected to the toothed plate 6 via a positioning column 8 and a bearing.

[0020] There are three support columns 14, which are arranged in an equilateral triangle shape.

[0021] The two clamps 13 are set relative to each other. Example 2

[0022] In use, the telescopic cylinder 12 is activated, causing the clamping block 13 to move towards each other. When the clamping block 13 clamps the rim body 20, the telescopic cylinder 12 stops moving, and the rotary motor 2 is activated. The rotary motor 2 drives the turntable 3 to rotate, which in turn drives the hexagonal positioning plate 4 to rotate, which in turn drives the toothed plate 6 to rotate, thereby causing the second roller 9 to rotate within the rim body 20, thus achieving the rounding of the inner rim body 20.

[0023] It is worth noting that the degree of non-roundness of the inner circle of the rim body 20 is generally small. Adjustments are made only in certain minor areas by rotation. Therefore, the rim body 20 will not undergo significant displacement, and the positioning of the clamp 13 will not have a significant impact on the adjustment of the inner circle of the rim body 20.

[0024] After the inner ring of the rim body 20 is adjusted, the rotary motor 2 is turned off, and the electric push rod 10 is started. The electric push rod 10 drives the top column 101 to move forward, so that it presses the second roller 9 tightly, thus preventing the second roller 9 from rotating. At this time, the second roller 9 plays a positioning and fixing role on the inner wall of the rim body 20. Then the rotary motor 2 is started, and the rotary motor 2 drives the hexagonal positioning disk 4 to rotate, which in turn drives the entire toothed plate 6 and the rim body 20 to rotate together. At this time, the rim body 20 rotates inside the first roller 15, realizing the rounding of the outer ring of the rim body 20.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A correcting device for the production of bicycle rims, comprising a worktable, characterized in that The workbench is fixedly connected to fixed plates on both sides. Each fixed plate is fixedly connected to a telescopic cylinder on one side. Each telescopic cylinder is fixedly connected to a clamping block at its telescopic end. Multiple support columns are provided on the workbench surface between two fixed plates. Each support column is rotatably connected to a first rotating roller via a bearing. A rotary motor is fixedly connected to the center of the rear side of the workbench. The output end of the rotary motor is connected to a turntable. The turntable is fixedly connected to a hexagonal positioning plate. Multiple support plates are evenly distributed on the outer surface of the hexagonal positioning plate. A toothed plate is connected between every two support plates via bolts. A groove is provided on the top surface of each toothed plate. An electric push rod is fixedly connected to the center of the bottom of the groove. A top column is fixedly connected to the telescopic end of the electric push rod. A second rotating roller is provided on the front side of the top column. The second rotating roller is connected to the toothed plate via a positioning column and a bearing.

2. A correcting device for the production of bicycle rims according to claim 1, characterized in that The number of support columns is three, and the three support columns are arranged in an equilateral triangle shape.

3. A correcting device for the production of bicycle rims according to claim 1, characterized in that The two clamps are positioned opposite each other.

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