Automatic drilling device for bicycle hub

Abstract

The utility model discloses an automatic drilling device for a bicycle hub, which comprises a processing table, a rotary table is rotatably arranged on the processing table, a stepping motor is arranged at the bottom of the processing table, a power output shaft of the stepping motor is connected with the rotary table, a fixing structure is arranged on the rotary table, a drilling structure is arranged on the processing table, and the drilling structure is connected with the rotary table. The drilling structure comprises a supporting vertical plate, an adjusting transverse plate, a first electric telescopic rod, a second electric telescopic rod and a drilling motor, the supporting vertical plate is vertically arranged on the machining table, the adjusting transverse plate is horizontally arranged on one side of the supporting vertical plate, an adjusting groove is formed in the adjusting transverse plate, a guide groove is formed in the inner side wall of the adjusting groove, and the drilling motor is arranged in the guide groove. And an adjusting sliding block is arranged in the guide groove in a sliding manner. The utility model relates to the technical field of hub manufacturing, and particularly provides an automatic drilling device for a bicycle hub.

Description

Technical Field

[0001] The utility model relates to the technical field of hub manufacturing, in particular to an automatic drilling device for a bicycle hub. Background Art

[0002] The bicycle hub is the central part of the bicycle wheel where the spokes converge. It connects the rim and the bicycle's transmission system. It is usually made of lightweight materials such as aluminum alloy or carbon fiber, and is designed to be high-strength, lightweight, and have good heat dissipation performance.

[0003] During the production process of the hub, it is necessary to drill holes on the end face. The equidistant holes require high processing accuracy. The existing processing methods are mostly manual processing, which has a low processing speed and certain errors. Or they are processed by a machining center, but the cost is relatively high. In addition, the installation and positioning of the hub is more troublesome. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the manual drilling of the hub is inefficient and has errors that affect the precision, and the processing cost of the processing center is high.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: the utility model proposes an automatic drilling device for a bicycle hub, comprising a processing table, a turntable is rotatably provided on the processing table, a stepper motor is provided at the bottom of the processing table, a power output shaft of the stepper motor is connected to the turntable, a fixing structure is provided on the turntable, a drilling structure is provided on the processing table, the drilling structure comprises a supporting vertical plate, an adjusting horizontal plate, an electric telescopic rod 1, an electric telescopic rod 2 and a drilling motor, the supporting vertical plate is vertically arranged on the processing table, and the adjusting horizontal plate is horizontally arranged on the processing table. On one side of the supporting vertical plate, an adjustment groove is provided in the adjustment cross plate, a guide groove is provided on the inner side wall of the adjustment groove, an adjustment slider is slidably provided in the guide groove, the electric telescopic rod 1 is provided on the inner side wall of the adjustment groove and the free end is connected with the adjustment slider, the electric telescopic rod 2 is provided on the top of the adjustment slider, the free end of the electric telescopic rod 2 passes through the adjustment slider and extends to the bottom, an installation box is provided on the free end of the electric telescopic rod 2, the drilling motor is provided in the installation box and the power output shaft extends to the bottom of the installation box, and a drill bit is provided on the power output shaft of the drilling motor.

[0006] Preferred technical solution one: the fixed structure includes a fixed seat, a driving motor, a driving screw and a clamping block, the fixed seat is arranged on the turntable, a fixed recess and a driving cavity are arranged in the fixed seat, the fixed recess and the driving cavity are connected by a sliding groove, the two ends of the driving screw are rotatably arranged on opposite side walls in the driving cavity, the driving motor is arranged on the side wall of the fixed seat and the dynamic output shaft is connected to the driving screw, the driving screw is provided with two groups of thread groups with opposite thread directions, the clamping block is provided with two groups, the bottom of the two groups of clamping blocks are arranged on the two groups of thread groups with opposite thread directions through threaded connection, and the top of the clamping block passes through the sliding groove and extends to the top.

[0007] Preferred technical solution 2: The clamping block has a concave arc surface relative to the side wall, and an anti-slip rubber pad is provided on the concave arc surface.

[0008] Preferred technical solution three: The side wall of the supporting vertical plate is provided with a control display screen, and the electric telescopic rod 1, the electric telescopic rod 2, the stepping motor, the drilling motor and the driving motor are all electrically connected to the control display screen.

[0009] Optimal technical solution four: four sets of supporting feet are evenly distributed on the bottom of the processing table.

[0010] Preferred technical solution five: The side wall of the fixing seat is also provided with a cleaning door, and the cleaning door is communicated with the interior of the driving cavity.

[0011] The utility model proposes an automatic drilling device for a bicycle hub, and the beneficial effects achieved by adopting the above structure are as follows:

[0012] (1) The drilling position can be adjusted by cooperating with the supporting vertical plate, the adjusting horizontal plate, the electric telescopic rod 1, the electric telescopic rod 2 and the drilling motor, and the hub can be drilled in cooperation with the turntable and the stepping motor, so that the drilling is efficient and accurate;

[0013] (2) One end of the hub is centrally clamped by the cooperation of the fixed seat, driving motor, driving screw and clamping block. The clamping is precise and stable. The setting of the stepper motor can accurately adjust the rotation angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 The overall structure of the automatic drilling device for a bicycle hub proposed by the utility model is schematically shown. Figure 1 ;

[0016] Figure 2The overall structure of the automatic drilling device for a bicycle hub proposed by the utility model is schematically shown. Figure 2 ;

[0017] Figure 3 This is a cross-sectional structural schematic diagram of an automatic drilling device for a bicycle hub proposed by the utility model;

[0018] Figure 4 for Figure 3 A partial enlarged schematic diagram of part A.

[0019] Among them, 1. processing table, 2. turntable, 3. stepper motor, 4. support vertical plate, 5. adjustment horizontal plate, 6. electric telescopic rod 1, 7. electric telescopic rod 2, 8. drilling motor, 9. adjustment slot, 10. adjustment slider, 11. installation box, 12. drill bit, 13. fixed seat, 14. drive motor, 15. drive screw, 16. clamping block, 17. fixed concave table, 18. drive cavity, 19. sliding slot, 20. anti-slip rubber pad, 21. control display screen, 22. support foot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] Embodiment 1

[0023] like Figures 1 to 4As shown, the technical solution adopted by the utility model is as follows: an automatic drilling device for a bicycle hub, comprising a processing table 1, a turntable 2 is rotatably provided on the processing table 1, a stepper motor 3 is provided at the bottom of the processing table 1, a power output shaft of the stepper motor 3 is connected to the turntable 2, a fixing structure is provided on the turntable 2, a drilling structure is provided on the processing table 1, the drilling structure comprises a supporting vertical plate 4, an adjusting horizontal plate 5, an electric telescopic rod 1 6, an electric telescopic rod 2 7 and a drilling motor 8, the supporting vertical plate 4 is vertically arranged on the processing table 1, the adjusting horizontal plate 5 is horizontally arranged on one side of the supporting vertical plate 4, and an adjusting groove is provided in the adjusting horizontal plate 5 9, a guide groove is provided on the inner wall of the adjusting groove 9, an adjusting slider 10 is slidably provided in the guide groove, an electric telescopic rod 1 6 is provided on the inner wall of the adjusting groove 9 and the free end is connected to the adjusting slider 10, an electric telescopic rod 2 7 is provided on the top of the adjusting slider 10, the free end of the electric telescopic rod 2 7 passes through the adjusting slider 10 and extends to the bottom, an installation box 11 is provided on the free end of the electric telescopic rod 2 7, a drilling motor 8 is provided in the installation box 11 and the power output shaft extends to the bottom of the installation box 11, a drill bit 12 is provided on the power output shaft of the drilling motor 8, and four groups of supporting feet 22 are evenly distributed on the bottom of the processing table 1.

[0024] Embodiment 2

[0025] Based on the first embodiment, Figure 3 and Figure 4 As shown, the fixed structure includes a fixed seat 13, a driving motor 14, a driving screw 15 and a clamping block 16. The fixed seat 13 is arranged on the turntable 2. A fixed recess 17 and a driving cavity 18 are arranged in the fixed seat 13. The fixed recess 17 and the driving cavity 18 are connected by a sliding groove 19. Both ends of the driving screw 15 are rotatably arranged on opposite side walls in the driving cavity 18. The driving motor 14 is arranged on the side wall of the fixed seat 13 and the dynamic output shaft is connected to the driving screw 15. Two groups of thread groups with opposite thread directions are arranged on the driving screw 15. There are two groups of clamping blocks 16. The bottoms of the two groups of clamping blocks 16 are arranged on the two groups of thread groups with opposite thread directions through threaded connection. The top of the clamping block 16 passes through the sliding groove 19 and extends to the top. The opposite side wall of the clamping block 16 is provided with a concave arc surface, and the concave arc surface is provided with an anti-slip rubber pad 20. The side wall of the fixed seat 13 is also provided with a cleaning door, and the cleaning door is connected with the inside of the driving cavity 18.

[0026] Among them, the side wall of the supporting vertical plate 4 is provided with a control display screen 21, and the electric telescopic rod 1 6, the electric telescopic rod 2 7, the stepping motor 3, the drilling motor 8 and the driving motor 14 are all electrically connected to the control display screen 21.

[0027] During specific use, the processed hub part is placed vertically on the fixed recessed platform 17 in the fixed seat 13, and then the driving motor 14 is started to drive the driving screw 15 to rotate, and then the two sets of clamping blocks 16 are driven to move toward each other, so as to tighten the hub, and then the adjusting slider 10 is pushed to move by the electric telescopic rod 1 6, so as to adjust the distance between the drill bit 12 and the center of the hub, and the electric telescopic rod 2 is started to drive the installation box 11 to move downward, and the drilling motor 8 is started to drive the drill bit 12 to perform the drilling operation. After the drilling is completed, the turntable 2 is driven to rotate by the stepping motor 3 to realize rotation to other positions for continuous and precise processing, and the waste chips generated fall into the driving cavity 18, and the cleaning door is opened for convenient centralized cleaning.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, material or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, material or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic drilling device for a bicycle hub, characterized in that: The invention comprises a processing table, wherein a turntable is rotatably provided on the processing table, a stepper motor is provided at the bottom of the processing table, a power output shaft of the stepper motor is connected with the turntable, a fixing structure is provided on the turntable, a drilling structure is provided on the processing table, the drilling structure comprises a supporting vertical plate, an adjusting horizontal plate, an electric telescopic rod 1, an electric telescopic rod 2 and a drilling motor, the supporting vertical plate is vertically arranged on the processing table, the adjusting horizontal plate is horizontally arranged on one side of the supporting vertical plate, an adjusting groove is provided in the adjusting horizontal plate, a guide groove is provided in the inner side wall of the adjusting groove, an adjusting slider is slidably provided in the guide groove, the electric telescopic rod 1 is arranged on the inner side wall of the adjusting groove and a free end is connected with the adjusting slider, the electric telescopic rod 2 is arranged on the top of the adjusting slider, the free end of the electric telescopic rod 2 passes through the adjusting slider and extends to the bottom, an installation box is provided on the free end of the electric telescopic rod 2, the drilling motor is arranged in the installation box and the power output shaft extends to the bottom of the installation box, and a drill is provided on the power output shaft of the drilling motor.

2. The automatic drilling device for a bicycle hub according to claim 1, characterized in that: The fixing structure includes a fixing seat, a driving motor, a driving screw and a clamping block. The fixing seat is arranged on a turntable. A fixing recess and a driving cavity are arranged in the fixing seat. The fixing recess and the driving cavity are connected by a sliding groove. Both ends of the driving screw are rotatably arranged on opposite side walls in the driving cavity. The driving motor is arranged on the side wall of the fixing seat and the dynamic output shaft is connected to the driving screw. Two groups of thread groups with opposite thread directions are arranged on the driving screw. Two groups of clamping blocks are provided. The bottoms of the two groups of clamping blocks are arranged on the two groups of thread groups with opposite thread directions through threaded connection. The top of the clamping block passes through the sliding groove and extends to the top.

3. The automatic drilling device for a bicycle hub according to claim 2, characterized in that: The clamping block is provided with a concave arc surface opposite to the side wall, and an anti-slip rubber pad is provided on the concave arc surface.

4. The automatic drilling device for a bicycle hub according to claim 3, characterized in that: A control display screen is provided on the side wall of the supporting vertical plate, and the electric telescopic rod 1, the electric telescopic rod 2, the stepping motor, the drilling motor and the driving motor are all electrically connected to the control display screen.

5. The automatic drilling device for a bicycle hub according to claim 4, characterized in that: Four groups of supporting feet are evenly distributed on the bottom of the processing table.

6. The automatic drilling device for a bicycle hub according to claim 5, characterized in that: The side wall of the fixing seat is also provided with a cleaning door, and the cleaning door is communicated with the interior of the driving cavity.

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