Bicycle rim welding device

Abstract

The utility model discloses a bicycle rim welding device which comprises a base, a first supporting column and a second supporting column, a stepping motor is installed at one end of the top of the base through an installation base, a rim is arranged at one end of the stepping motor, a rim center hole is formed in the rim, a connecting rod is arranged in the rim center hole, and the first supporting column and the second supporting column are arranged on the base. A spoke is connected between the outer side of the center hole of the rim and the inner side of the rim, and a co2 gas protection welding gun is installed at the other end of the top of the base through a screw. Compared with the prior art, the novel bicycle rim welding device has the function of driving the rim to rotate, meanwhile, the connecting positions of the spokes and the rim can be welded, the firmness of the connecting positions of the spokes and the rim is good, and the novel bicycle rim welding device is suitable for wide application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle rims, in particular to a bicycle rim welding device. Background Art

[0002] A bicycle, also known as a cycle or bike, is usually a small two-wheeled land vehicle. It is a green and environmentally friendly means of transportation, generally composed of a frame, wheels and other structures. Among them, as an important component of a bicycle, the rims, axles, spokes, inner tubes, and outer tires together constitute the wheel system. According to the material classification, rims can be divided into steel rims, aluminum rims, carbon rims, etc. During the production process of rims, the connection between the spokes and the rims is welded to make the connection between the spokes and the rims more secure.

[0003] The utility model with publication number CN210967542U discloses a welding device for a bicycle rim, comprising a welding machine arranged at the bottom, two supporting brackets arranged above the welding machine, and a pressing mechanism fixed to the supporting brackets. The two supporting brackets are positioned relative to each other, one of the supporting brackets is fixed, and the outer side of the other supporting bracket is connected to a push cylinder, which moves horizontally toward the fixed supporting bracket under the push of the push cylinder. By setting a movable supporting bracket, the wheel rim is positioned and pressed, so that the wheel rim will not undergo abnormal deformation during the welding process, thereby ensuring the roundness of the wheel rim and improving the processing accuracy.

[0004] Existing bicycle rim welding devices have the following disadvantages: they lack the function of driving the rim to rotate and do not have a structure for welding the connection between the spokes and the rim, resulting in poor firmness of the connection between the spokes and the rim. To this end, we propose a bicycle rim welding device. Summary of the Invention

[0005] The main purpose of the utility model is to provide a bicycle rim welding device, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A bicycle rim welding device includes a base, a first support column and a second support column. A stepper motor is mounted on one end of the top of the base via a mounting seat. A rim is provided at one end of the stepper motor. A rim center hole is provided inside the rim. A connecting rod is provided inside the rim center hole. Spokes are connected between the outer side of the rim center hole and the inner side of the rim. A CO2 gas shielded welding gun is mounted on the other end of the top of the base via screws.

[0008] Furthermore, a first support column is provided at one end of the rim, one end of the connecting rod passes through the first support column and is connected to the output shaft of the stepper motor, and a rigid connecting sleeve is provided between the connecting rod and the output shaft of the stepper motor.

[0009] Furthermore, a second support column is provided at the other end of the rim, and the other end of the connecting rod is connected to the second support column via a ball bearing.

[0010] Furthermore, the bottoms of the first support column and the second support column are both welded to the base.

[0011] Furthermore, a gas pipe is connected to one side of the CO2 gas shielded welding gun.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] Personnel can connect one end of the connecting rod to the output shaft of the stepper motor through a rigid connecting sleeve. The displacement angle and displacement distance of the stepper motor are relatively precise, and can drive the connecting rod and the rim to rotate at a uniform speed. The CO2 gas shielded welding gun is located on one side of the rim. Personnel can use the CO2 gas shielded welding gun to weld the connection between the spokes and the rim, thereby achieving the purpose of driving the rim to rotate and be welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a bicycle rim welding device.

[0015] Figure 2 The utility model is a top view of a bicycle rim welding device.

[0016] Figure 3 The utility model is a schematic diagram of the driving structure of a bicycle rim welding device.

[0017] In the figure: 1. Base; 2. Mounting seat; 3. Stepper motor; 4. Rim; 5. Connecting rod; 6. Ball bearing; 7. First support column; 8. CO2 gas shielded welding gun; 9. Second support column; 10. Rigid connecting sleeve; 11. Center hole of the rim; 12. Spokes; 13. Gas pipe. Implementation Method

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-3As shown, a bicycle rim welding device includes a base 1, a first support column 7 and a second support column 9. A stepper motor 3 is installed at one end of the top of the base 1 through a mounting seat 2. A rim 4 is provided at one end of the stepper motor 3. A rim center hole 11 is provided inside the rim 4. A connecting rod 5 is provided inside the rim center hole 11. Spokes 12 are connected between the outer side of the rim center hole 11 and the inner side of the rim 4. A CO2 gas shielded welding gun 8 is installed at the other end of the top of the base 1 through screws.

[0020] Among them, one end of the rim 4 is provided with a first support column 7, one end of the connecting rod 5 passes through the first support column 7 and is connected to the output shaft of the stepper motor 3, and a rigid connecting sleeve 10 is sleeved between the connecting rod 5 and the output shaft of the stepper motor 3.

[0021] In this embodiment, Figure 3 As shown, a through hole is provided on the first support column 7, so that one end of the connecting rod 5 can pass through the first support column 7 and be connected to the output shaft of the stepper motor 3. The connecting rod 5 is arranged inside the rim 4, and then the stepper motor 3 can drive the connecting rod 5 and the rim 4 to rotate, and the rigid connecting sleeve 10 can enhance the stability of the connection between the output shaft of the stepper motor 3 and the connecting rod 5.

[0022] The other end of the rim 4 is provided with a second support column 9 , and the other end of the connecting rod 5 is connected to the second support column 9 via a ball bearing 6 .

[0023] In this embodiment, Figure 3 As shown, the rim 4 can rotate smoothly through the ball bearing 6.

[0024] The bottoms of the first support column 7 and the second support column 9 are both welded to the base 1 .

[0025] In this embodiment, Figure 1 As shown, this method enables the first support column 7 and the second support column 9 to stably support the rim 4.

[0026] Wherein, one side of the CO2 gas shielded welding gun 8 is connected to a gas pipe 13.

[0027] In this embodiment, Figure 1 As shown, the gas supply pipe 13 can supply gas to the CO 2 gas shielded welding gun 8 .

[0028] It should be noted that the present invention is a bicycle rim welding device. When working, the personnel place the rim 4 between the first support column 7 and the second support column 9, and connect one end of the connecting rod 5 to the output shaft of the stepper motor 3 through the rigid connecting sleeve 10. The rigid connecting sleeve 10 can enhance the stability of the connection between the output shaft of the stepper motor 3 and the connecting rod 5. Furthermore, the stepper motor 3 is a control motor that converts an electric pulse signal into angular displacement or linear displacement, also known as a pulse motor. Its displacement angle and displacement distance are relatively accurate. Furthermore, the stepper motor 3 can drive the connecting rod 5 and the rim 4 to rotate at a uniform speed. The CO2 gas shielded welding gun 8 is located on one side of the top of the base 1, and the CO2 gas shielded welding gun 8 is located on one side of the rim 4. The muzzle of the CO2 gas shielded welding gun 8 is located on one side of the connection between the spoke 12 and the rim 4. Then, the personnel can use the CO2 gas shielded welding gun 8 to weld the connection between the spoke 12 and the rim 4, thereby achieving the purpose of driving the rim 4 to rotate and be welded.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A bicycle rim welding device, comprising a base (1), a first support column (7) and a second support column (9), characterized in that: A stepper motor (3) is mounted on one end of the top of the base (1) via a mounting seat (2), a rim (4) is provided on one end of the stepper motor (3), a rim center hole (11) is provided inside the rim (4), a connecting rod (5) is provided inside the rim center hole (11), a spoke (12) is connected between the outer side of the rim center hole (11) and the inner side of the rim (4), and a CO2 gas shielded welding gun (8) is mounted on the other end of the top of the base (1) via screws.

2. A bicycle rim welding device according to claim 1, characterized in that: A first support column (7) is provided at one end of the wheel rim (4), one end of the connecting rod (5) passes through the first support column (7) and is connected to the output shaft of the stepper motor (3), and a rigid connecting sleeve (10) is sleeved between the connecting rod (5) and the output shaft of the stepper motor (3).

3. The bicycle rim welding device according to claim 1, characterized in that: The other end of the wheel rim (4) is provided with a second support column (9), and the other end of the connecting rod (5) is connected to the second support column (9) via a ball bearing (6).

4. The bicycle rim welding device according to claim 1, characterized in that: The bottoms of the first support column (7) and the second support column (9) are both welded to the base (1).

5. The bicycle rim welding device according to claim 1, characterized in that: One side of the CO2 gas shielded welding gun (8) is connected to a gas delivery pipe (13).

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