Efficient automatic drilling device for hub

Abstract

The utility model discloses an efficient automatic drilling device for a hub, which comprises a processing machine table, a rotary processing unit and a limit adjusting unit, a mounting arm is fixedly connected to the upper part of the processing machine table, a drilling adjusting cylinder penetrates through the mounting arm, and a motor penetrates through the lower end of the processing machine table; the rotating machining unit comprises a rotating base fixedly connected to the output end of the motor, a plurality of limiting grooves are formed in the side wall of the rotating base, and a hub machining base is fixedly connected to the upper portion of the rotating base. The limiting adjusting unit comprises a mounting plate fixedly connected to the limiting groove, and a limiting rod is arranged on the mounting plate in a sliding mode. The utility model belongs to the technical field of hub manufacturing, and effectively solves the problems that when a hub drilling device is used, the auxiliary limiting function is lacked, the manual operation cost is increased, and the situation that the precision is poor easily occurs.

Description

Technical Field

[0001] The utility model belongs to the technical field of hub manufacturing, and specifically relates to a high-efficiency automatic drilling device for a hub. Background Art

[0002] Hubs, bicycle parts, commonly known as "hub barrels", are the barrels outside the axle that connect the spokes, usually called axle skins; hubs are available in two types: iron hubs and aluminum hubs; during the manufacturing process, a series of holes need to be drilled on the hubs according to the design requirements to arrange the spokes. Depending on the number of spokes, there are generally 3-way and 5-way arrangements. Hubs largely determine the weight, durability, overall rigidity and other major indicators of a wheel set. A key factor in determining these indicators is whether the distance between the holes on the hubs is uniform and whether the accuracy is high enough. At present, the holes on the hubs are usually punched by manually controlled semi-automatic machines. However, due to the large number of holes that need to be punched on the hubs, manual drilling is not only slow, but also difficult to ensure the accuracy of the distance between the holes, which can easily affect the overall quality of the bicycle wheel.

[0003] Publication (Announcement) No.: CN219649205U provides a high-efficiency automatic drilling device for a bicycle hub to reduce the labor intensity of workers.

[0004] However, when the above patent is used, the continuous drilling operation requires manual control of the rotation angle, which is prone to large precision errors, increases the trouble of operation adjustment, and affects the efficiency of use. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the hub drilling device lacks the function of auxiliary limiting when in use, which increases the manual operation cost and easily leads to poor accuracy.

[0006] The technical solution adopted by the utility model is as follows: the utility model proposes a high-efficiency automatic drilling device for a hub, comprising a processing machine, a mounting arm is fixedly connected to the upper part of the processing machine, a drilling adjustment cylinder is passed through the mounting arm, a motor is passed through the lower end of the processing machine, and also includes a rotating processing unit and a limit adjustment unit;

[0007] The rotary processing unit comprises a rotary base fixedly connected to the output end of the motor, a plurality of limit grooves are provided on the side wall of the rotary base, and a hub processing seat is fixedly connected to the upper part of the rotary base;

[0008] The limit adjustment unit comprises a mounting plate fixedly connected to the limit groove, and a limit rod is slidably provided on the mounting plate.

[0009] Furthermore, the limiting grooves are distributed in a circular array with the center point of the rotating base as the center of the circle.

[0010] Furthermore, a telescopic rod is fixedly connected to one end of the limiting rod located on the inner side of the mounting plate, and a return spring is sleeved on the telescopic rod.

[0011] Furthermore, a limiting housing is fixedly connected to the processing machine platform, a sliding groove is provided on a side of the limiting housing, and an adjusting push plate cooperating with the limiting rod is slidably provided on the sliding groove.

[0012] Furthermore, an L-shaped bracket is fixedly connected to the position-limiting housing, an electric push rod passes through the L-shaped bracket, and an output end of the L-shaped bracket is fixedly connected to the adjusting push plate.

[0013] Furthermore, hydraulic cylinders are passed through both sides of the hub processing seat, and a hub holder is fixedly connected to the output end of the hydraulic cylinder. The hub holder is arranged in a half-circular ring shape, and two groups of hub holders are arranged in a mirror image.

[0014] Furthermore, a drilling machine is fixedly connected to the output end of the drilling adjustment cylinder.

[0015] The beneficial effects achieved by the utility model using the above structure are as follows:

[0016] 1. By setting a limit unit on the rotating structure and cooperating with mechanical limit, the rotation angle can be accurately controlled to improve the efficiency of drilling processing;

[0017] 2. By setting the cylinder structure for limit drive, the limit and rotation functions are switched as the position is adjusted, reducing the trouble of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the structural installation of the rotary processing unit;

[0020] Figure 3 It is a schematic diagram of the structural installation of the limit adjustment unit;

[0021] Figure 4 for Figure 1 A partial enlarged view of part A.

[0022] Among them, 1. Processing machine; 2. Mounting arm; 3. Drilling adjustment cylinder; 4. Motor; 5. Rotating base; 6. Limiting groove; 7. Hub processing seat; 8. Mounting plate; 9. Limiting rod; 10. Telescopic rod; 11. Return spring; 12. Limiting housing; 13. Sliding groove; 14. Adjusting push plate; 15. L-shaped bracket; 16. Electric push rod; 17. Hydraulic cylinder; 18. Hub holder; 19. Drilling machine. DETAILED DESCRIPTION

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model proposes a high-efficiency automatic drilling device for a hub, comprising a processing machine 1, a mounting arm 2 is fixedly connected to the upper part of the processing machine 1, a drilling adjustment cylinder 3 is passed through the mounting arm 2, and a drilling machine 19 is fixedly connected to the output end of the drilling adjustment cylinder 3; a motor 4 is passed through the lower end of the processing machine 1, and also includes a rotation processing unit and a limit adjustment unit; the rotation processing unit includes a rotating base 5 fixedly connected to the output end of the motor 4, and a plurality of groups of limit grooves 6 are opened on the side wall of the rotating base 5, and the limit grooves 6 are distributed in a circular array with the center point of the rotating base 5 as the center of a circle; a hub processing seat 7 is fixedly connected to the upper part of the rotating base 5; the limit adjustment unit includes a mounting plate 8 fixedly connected to the limit groove 6, and a limit rod 9 is slidably provided on the mounting plate 8.

[0024] A telescopic rod 10 is fixedly connected to one end of the limiting rod 9 located inside the mounting plate 8 , and a return spring 11 is sleeved on the telescopic rod 10 .

[0025] A limit housing 12 is fixedly connected to the processing machine 1, a sliding groove 13 is provided on the side of the limit housing 12, and an adjusting push plate 14 cooperating with the limit rod 9 is slidably provided on the sliding groove 13; an L-shaped bracket 15 is fixedly connected to the limit housing 12, an electric push rod 16 passes through the L-shaped bracket 15, and the output end of the L-shaped bracket 15 is fixedly connected to the adjusting push plate 14.

[0026] Hydraulic cylinders 17 are passed through both sides of the hub processing seat 7. A hub holder 18 is fixedly connected to the output end of the hydraulic cylinder 17. The hub holder 18 is arranged in a half-circular ring shape, and two groups of hub holders 18 are arranged in a mirror image.

[0027] When in use, the user needs to select the corresponding rotating base 5 according to the processing needs (the rotating base 5 is provided with a limit groove 6 according to the angle of the hole on the workpiece, so that the angle change after each rotation can be the same, and the hole position can be accurately positioned;) for fixed installation, the hub workpiece is placed between the two sets of hub clamps 18, the hydraulic cylinder 17 is controlled to work, the output end is extended, and the hub clamp 18 is pushed to fix the hub workpiece;

[0028] The drilling machine 19 is controlled to move downward by the drilling adjustment cylinder 3. After drilling a hole in the workpiece, the drilling adjustment cylinder 3 is reset, and the angle can be adjusted at this time:

[0029] The motor 4 is controlled to work, and the output end drives the rotating base 5 to rotate. Since one end of the telescopic rod 10 cooperates with the rotating base 5, the elastic potential energy of the return spring 11 is used to push the limit rod 9 outward, and the limit rod 9 can cooperate with the limit housing 12 to limit. After the drilling operation is performed, the above steps are repeated, and the electric push rod 16 is controlled to work, and the output end pushes the adjustment push plate 14 to push the limit rod 9 to the outside of the limit area of ​​the limit housing 12. At this time, the motor 4 can drive the rotating base 5 to continue to rotate;

[0030] The structure on the next set of limiting grooves 6 is still limited by the limiting housing 12 and rotated by the same angle, which can improve the processing accuracy, and the mechanical limit can reduce the processing loss caused by the adjustment error;

[0031] Repeat the limiting and rotating process to facilitate quick hole opening operations;

[0032] The above is the entire process of using a high-efficiency automatic drilling device for a hub.

[0033] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A high-efficiency automatic drilling device for a hub, comprising a processing machine (1), a mounting arm (2) fixedly connected to the upper portion of the processing machine (1), a drilling adjustment cylinder (3) passing through the mounting arm (2), and a motor (4) passing through the lower end of the processing machine (1), characterized in that: It also includes a rotation processing unit and a limit adjustment unit; The rotary processing unit comprises a rotary base (5) fixedly connected to the output end of the motor (4), a plurality of groups of limit grooves (6) are provided on the side wall of the rotary base (5), and a hub processing seat (7) is fixedly connected to the upper part of the rotary base (5); The limit adjustment unit comprises a mounting plate (8) fixedly connected to the limit groove (6), and a limit rod (9) is slidably provided on the mounting plate (8).

2. The high-efficiency automatic drilling device for a hub according to claim 1, characterized in that: The limiting grooves (6) are distributed in a circular array with the center point of the rotating base (5) as the center of the circle.

3. The high-efficiency automatic drilling device for a hub according to claim 2, characterized in that: A telescopic rod (10) is fixedly connected to one end of the limiting rod (9) located on the inner side of the mounting plate (8), and a return spring (11) is sleeved on the telescopic rod (10).

4. The high-efficiency automatic drilling device for a hub according to claim 3, characterized in that: A limit housing (12) is fixedly connected to the processing machine table (1), a sliding groove (13) is provided on the side of the limit housing (12), and an adjustment push plate (14) cooperating with the limit rod (9) is slidably provided on the sliding groove (13).

5. The high-efficiency automatic drilling device for a hub according to claim 4, characterized in that: An L-shaped bracket (15) is fixedly connected to the position-limiting housing (12), an electric push rod (16) runs through the L-shaped bracket (15), and an output end of the L-shaped bracket (15) is fixedly connected to the adjusting push plate (14).

6. The high-efficiency automatic drilling device for a hub according to claim 5, characterized in that: A hydraulic cylinder (17) is passed through both sides of the hub processing seat (7), and a hub clamping seat (18) is fixedly connected to the output end of the hydraulic cylinder (17). The hub clamping seat (18) is arranged in a half-circular ring shape, and two groups of hub clamping seats (18) are arranged in a mirror image.

7. The high-efficiency automatic drilling device for a hub according to claim 6, characterized in that: A drilling machine (19) is fixedly connected to the output end of the drilling adjustment cylinder (3).

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