Bicycle wheel drilling machine with positioning function

Abstract

The utility model discloses a bicycle rim drilling machine with positioning function is equipped with intermittent rotation mechanism in the middle of the workbench, and the upper end fixedly connected of intermittent rotation mechanism has the carousel, is equipped with positioning mechanism on the carousel, and the both sides of workbench are equipped with a drilling mechanism respectively, and positioning mechanism is constituted by moving assembly and clamping assembly, and is equipped with movable clamping assembly on clamping assembly, and is equipped with pre -tightening subassembly on movable clamping assembly, the utility model discloses the cooperation between intermittent rotation mechanism, positioning mechanism, drilling mechanism and controller, has realized the automation operation of drilling, has solved the problem of low efficiency, poor quality of manual operation, through the movable clamping assembly of setting, can avoid drilling position automatically, realizes the drilling to rim each part, through the setting of moving assembly, first electric telescopic handle and movable clamping assembly in positioning mechanism, can realize the clamping positioning to the rim of different size, and the adaptability of equipment is stronger.

Description

Technical Field

[0001] This utility model relates to a wide range of applications, specifically a bicycle wheel rim drilling machine with positioning function. Background Technology

[0002] In the bicycle manufacturing industry, the wheel rim is a key component, and its manufacturing process is extremely complex and precise. Drilling the wheel rim is an indispensable and crucial step in the manufacturing process, as the quality of the drilling directly affects the overall performance and safety of the bicycle.

[0003] Currently, most of the drilling work on bicycle rims is done manually, which consumes a lot of manpower and time, and the product quality cannot be guaranteed. Some existing mechanical positioning structures can only perform basic fixation and cannot drill holes in the rim clamping area. The position needs to be readjusted before drilling, which is cumbersome and has low processing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a bicycle wheel rim drilling machine with positioning function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A bicycle wheel rim drilling machine with positioning function includes a worktable, an intermittent rotation mechanism in the middle of the worktable, a turntable fixedly connected to the upper end of the intermittent rotation mechanism, a positioning mechanism on the turntable, a drilling mechanism on each of the two opposite sides of the worktable, a controller fixedly connected to the worktable, the controller being electrically connected to the electronic components of the above mechanisms, the positioning mechanism consisting of multiple radially movable components and a clamping component fixed above it, the clamping component having a movable clamping component, and the movable clamping component having a pre-tightening component.

[0007] As a further embodiment of this utility model: four sets of moving components and clamping components are provided, respectively arranged opposite each other in the transverse and longitudinal directions. Four mounting slots are provided on the turntable. The moving components are installed in the mounting slots. The moving components include a first motor, a first lead screw, and a screw sleeve. The first motor is fixedly connected in the mounting slot. The output end of the first motor is fixedly connected to the first lead screw. The other end of the first lead screw is rotatably connected in the mounting slot. A screw sleeve is threadedly connected to the first lead screw. The screw sleeve is slidably connected to the mounting slot. The clamping components include a C-shaped plate, a first electric telescopic rod, and a pressure plate. The C-shaped plate is fixedly connected to the screw sleeve. The first electric telescopic rod is fixedly connected to the top wall of the C-shaped plate. The output end of the first electric telescopic rod is fixedly connected to the pressure plate.

[0008] As a further embodiment of this utility model: the movable clamping assembly includes a spring and a movable plate. Multiple springs are provided, one end of the spring is fixedly connected to the inner side of the side wall of the C-shaped plate, and the other end is fixedly connected to the movable plate.

[0009] As a further embodiment of this utility model: the pre-tightening assembly includes multiple screws and nuts. One end of the screw is fixedly connected to the movable plate, and the other end passes through the side plate of the C-shaped plate and is slidably connected to it. The end passing through the C-shaped plate is threaded with a nut.

[0010] As a further embodiment of this utility model: the intermittent rotation mechanism includes a second motor, a non-complete gear, a complete gear, and a rotating shaft. The second motor is fixedly connected to the bottom surface of the worktable. The output end of the second motor is fixedly connected to the non-complete gear. One side of the non-complete gear is meshed with the complete gear. The rotating shaft is fixedly connected inside the complete gear. The lower end of the rotating shaft is rotatably connected to the top surface of the worktable, and the upper end is fixedly connected to a turntable.

[0011] As a further embodiment of this utility model: the drilling mechanism consists of a drilling assembly and a lifting assembly. The drilling assembly includes a hydraulic cylinder, a mounting plate, a drilling motor, and a drill bit. The output end of the hydraulic cylinder is fixedly connected to the mounting plate, and the other side of the mounting plate is fixedly connected to the drilling motor. The output end of the drilling motor is fixedly connected to the drill bit. The lifting assembly includes a U-shaped frame, a second lead screw, a third motor, a moving plate, a support rod, a bearing plate, and a fixed seat. The upper end of the U-shaped frame is fixedly connected to the bottom surface of the workbench. The bottom plate of the U-shaped frame is rotatably connected to the bottom surface of the workbench with a second lead screw. The lower end of the second lead screw is fixedly connected to the output end of the third motor. The third motor is fixedly connected to the U-shaped frame. A moving plate is threaded onto the second lead screw. The moving plate is slidably connected to the inner wall of the U-shaped frame. A support rod is vertically connected to each side of the moving plate. The support rod passes through the workbench and is slidably connected to it. The upper ends of both support rods are fixedly connected to the bearing plate. A fixed seat is fixedly connected to the bearing plate. The drilling assembly is fixedly connected to the fixed seat.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: A bicycle wheel rim drilling machine with positioning function realizes automated drilling operation through the cooperation of intermittent rotation mechanism, positioning mechanism, drilling mechanism and controller, solving the problems of low efficiency and poor quality of manual operation and meeting the needs of large-scale production; through the set movable clamping component, it can automatically avoid the drilling position, solving the problem of the traditional method where the clamping part cannot automatically avoid the drilling position and requires manual secondary clamping, realizing drilling of various parts of the wheel rim; through the setting of the moving component, the first electric telescopic rod and the movable clamping component in the positioning mechanism, it can realize the clamping and positioning of wheel rims of different sizes, and the equipment has stronger adaptability. Attached Figure Description

[0013] Figure 1This is a schematic diagram of a bicycle wheel rim drilling machine with positioning function.

[0014] Figure 2 This is a schematic diagram of the moving component in a bicycle wheel rim drilling machine with positioning function.

[0015] Figure 3 This is a schematic diagram of the clamping assembly in a bicycle wheel rim drilling machine with positioning function.

[0016] Figure 4 This is a schematic diagram of the intermittent rotation mechanism and drilling mechanism in a bicycle wheel rim drilling machine with positioning function.

[0017] In the diagram: 1. Workbench; 2. Intermittent rotation mechanism; 21. Second motor; 22. Partial gear; 23. Complete gear; 24. Rotating shaft; 3. Turntable; 31. Mounting slot; 4. Positioning mechanism; 41. Moving assembly; 411. First motor; 412. First lead screw; 413. Screw sleeve; 42. Clamping assembly; 421. C-shaped plate; 422. First electric telescopic rod; 423. Pressure plate; 5. Drilling mechanism; 51. Drilling assembly; 51. Hydraulic cylinder; 511. Mounting plate; 512. Drilling motor; 513. Drill bit; 514. Lifting assembly; 52. U-shaped frame; 521. Second lead screw; 522. Third motor; 523. Moving plate; 524. Support rod; 525. Bearing plate; 526. Fixed seat; 527. Movable clamping assembly; 6. Spring; 61. Movable plate; 62. Pre-tightening assembly; 7. Screw; 71. Nut; 72. Controller; 8. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4 In this embodiment of the utility model, a bicycle wheel rim drilling machine with positioning function includes a workbench 1, an intermittent rotation mechanism 2 in the middle of the workbench 1, a turntable 3 fixedly connected to the upper end of the intermittent rotation mechanism 2, a positioning mechanism 4 on the turntable 3, a drilling mechanism 5 respectively on both sides of the workbench 1, and a controller 8 fixedly connected to the workbench 1, the controller 8 being electrically connected to the electronic components of the above-mentioned mechanism.

[0020] The positioning mechanism 4 consists of multiple radially movable components 41 and clamping components 42 fixed above them. In this embodiment of the present invention, four sets of movable components 41 and clamping components 42 are used, which are arranged opposite each other in the transverse and longitudinal directions, respectively. The turntable 3 has four mounting slots 31. The movable components 41 are installed in the mounting slots 31. The movable components 41 include a first motor 411, a first lead screw 412 and a screw sleeve 413. The first motor 411 is fixedly connected in the mounting slot 31. The output end of the first motor 411 is fixedly connected to the first lead screw 412. The other end of the first lead screw 412 is rotatably connected in the mounting slot 31. The screw sleeve 413 is threadedly connected to the first lead screw 412 and is slidably connected to the mounting slot 31. The clamping assembly 42 includes a C-shaped plate 421, a first electric telescopic rod 422, and a pressure plate 423. The C-shaped plate 421 is fixedly connected to the threaded sleeve 413. The first electric telescopic rod 422 is fixedly connected to the top wall of the C-shaped plate 421, and the pressure plate 423 is fixedly connected to the output end of the first electric telescopic rod 422. During operation, the wheel rim is moved onto the turntable 3, and then the first motor 411 is started. The first motor 411 drives the first lead screw 412 to rotate, which in turn drives the threaded sleeve 413 and the clamping assembly 42 above it to move, so that the four clamping assemblies 42 clamp the inner side of the wheel rim from different directions. Then, the first electric telescopic rod 422 is started, which drives the pressure plate 423 to move down and press and fix the upper side of the wheel rim, thereby achieving stable clamping and positioning of the wheel rim.

[0021] To enable the drilling mechanism 5 to drill holes in the position where the wheel rim is held by the clamping assembly 42, a movable clamping assembly 6 is provided on the clamping assembly 42. The movable clamping assembly 6 includes springs 61 and movable plates 62. Multiple springs 61 are provided, with one end of each spring fixedly connected to the inner side of the side wall of the C-shaped plate 421, and the other end fixedly connected to the movable plates 62. The four movable plates 62 can position the inner side of the wheel rim. When the drilling mechanism 5 drills holes in the wheel rim position positioned by the movable plates 62, if the drill bit contacts the movable plate 62, the movable plate 62 compresses the springs 61 and moves to one side of the C-shaped plate 421, avoiding interference with the drilling of the wheel rim and achieving the requirement of drilling holes in various positions of the wheel rim.

[0022] A pre-tightening assembly 7 is provided on the movable plate 62. The pre-tightening assembly 7 includes multiple screws 71 and nuts 72. One end of the screw 71 is fixedly connected to the movable plate 62, and the other end passes through the side wall of the C-shaped plate 421 and is slidably connected to it. The nut 72 is threadedly connected to the screw 71 at the end passing through the C-shaped plate 421. By adjusting the position of the nut 72, the pre-tightening force of the spring 61 can be adjusted to adapt to the different clamping force requirements of wheel rims of different materials and thicknesses, ensuring that the clamping force of the movable plate 62 on the wheel rim is within a suitable range. At the same time, the screws 71 can guide the movement of the movable plate 62, ensuring that the movable plate 62 moves smoothly.

[0023] The intermittent rotation mechanism 2 includes a second motor 21, a non-complete gear 22, a complete gear 23, and a rotating shaft 24. The second motor 21 is fixedly connected to the bottom surface of the worktable 1. The output end of the second motor 21 is fixedly connected to the non-complete gear 22. The complete gear 23 is meshed with one side of the non-complete gear 22. The rotating shaft 24 is fixedly connected inside the complete gear 23. The lower end of the rotating shaft 24 is rotatably connected to the top surface of the worktable 1, and the upper end is fixedly connected to a turntable 3.

[0024] The drilling mechanism 5 consists of a drilling assembly 51 and a lifting assembly 52. ​​The drilling assembly 51 includes a hydraulic cylinder 511, a mounting plate 512, a drilling motor 513, and a drill bit 514. The output end of the hydraulic cylinder 511 is fixedly connected to the mounting plate 512, and the other side of the mounting plate 512 is fixedly connected to the drilling motor 513. The output end of the drilling motor 513 is fixedly connected to the drill bit 514. The lifting assembly 52 includes a U-shaped frame 521, a second lead screw 522, a third motor 523, a moving plate 524, a support rod 525, a bearing plate 526, and a fixed seat 527. The upper end of the U-shaped frame 521 is fixedly connected to the bottom surface of the workbench 1. The second lead screw 522 is rotatably connected between the bottom plate of the U-shaped frame 521 and the bottom surface of the workbench 1. The lower end of the second lead screw 522 is fixedly connected to the output end of the third motor 523. The third motor 523 is fixedly connected to the U-shaped frame 521. The moving plate 524 is threadedly connected to the second lead screw 522. The moving plate 524 is slidably connected to the inner wall of the U-shaped frame 521. A support rod 525 is vertically connected to each side of the moving plate 524. The support rod 525 passes through the workbench 1 and is slidably connected to it. The upper ends of both support rods 525 are fixedly connected to the bearing plate 526. The fixed seat 527 is fixedly connected to the bearing plate 526. The drilling assembly 51 is fixedly connected to the fixed seat 527.

[0025] The working principle of this utility model is as follows: First, based on the material, thickness, and other parameters of the wheel rim to be processed, the preload of the spring 61 on the movable plate 62 is adjusted by adjusting the nut 72 on the preload assembly 7, thus completing the equipment preparation. Next, the bicycle wheel rim is placed on the turntable 3, and the first motor 411 in the positioning mechanism 4 is started by the controller 8, which drives the first lead screw 412 to rotate, causing the screw sleeve 413 and the clamping assembly 42 above it to move radially, approaching the inner side of the wheel rim from different directions. Then, the first electric telescopic rod 422 is started by the controller 8, which drives the pressure plate 423 to move down, achieving initial stable clamping of the wheel rim. At this time, the movable plate 62 also contacts the inner side of the wheel rim for further positioning. Drilling is then performed. The working frequency of the drilling assembly 51 is set on the controller 8. The third motor 523 in the lifting assembly 52 is started, driving the second lead screw 522 to rotate. This causes the moving plate 524 to move the bearing plate 526 and the fixed seat 527 to adjust the height of the drilling assembly 51. Once in position, the hydraulic cylinders 511 in the opposing drilling assemblies 51 on both sides are activated, pushing the drilling motor 513 and the drill bit 514 closer to the wheel rim. The drilling motor 513 starts, driving the drill bit 514 to drill holes at the opposing positions on both sides of the wheel rim. When drilling at the wheel rim clamping position, the moving plate 62 compresses the spring 61 to avoid the drill bit when it contacts the moving plate 62. After completing one round of drilling, the intermittent rotation mechanism 2 rotates the turntable 3, moving the un-drilled portion to the opposite position of the drilling mechanism 5 before stopping. The drilling operation is then repeated.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bicycle wheel rim drilling machine with positioning function, comprising a worktable (1), characterized in that, An intermittent rotation mechanism (2) is provided in the middle of the workbench (1). A turntable (3) is fixedly connected to the upper end of the intermittent rotation mechanism (2). A positioning mechanism (4) is provided on the turntable (3). A drilling mechanism (5) is provided on each side of the workbench (1). A controller (8) is fixedly connected to the workbench (1). The controller (8) is electrically connected to the electronic components of the above mechanism. The positioning mechanism (4) consists of multiple radially moving components (41) and a clamping component (42) fixed above it. A movable clamping component (6) is provided on the clamping component (42). A pre-tightening component (7) is provided on the movable clamping component (6).

2. A bicycle wheel rim drilling machine with positioning function according to claim 1, characterized in that, The moving assembly (41) and clamping assembly (42) are provided in four sets, respectively arranged opposite each other in the horizontal and vertical directions. The turntable (3) has four mounting slots (31). The moving assembly (41) is installed in the mounting slot (31). The moving assembly (41) includes a first motor (411), a first lead screw (412) and a screw sleeve (413). The first motor (411) is fixedly connected in the mounting slot (31). The output end of the first motor (411) is fixedly connected to the first lead screw (412). The other end of the first lead screw (412) is... The first lead screw (412) is threadedly connected to the first lead screw (412) in the mounting groove (31), and the threaded sleeve (413) is slidably connected to the mounting groove (31). The clamping assembly (42) includes a C-shaped plate (421), a first electric telescopic rod (422) and a pressure plate (423). The C-shaped plate (421) is fixedly connected to the threaded sleeve (413), and the first electric telescopic rod (422) is fixedly connected to the top wall of the C-shaped plate (421). The pressure plate (423) is fixedly connected to the output end of the first electric telescopic rod (422).

3. A bicycle wheel rim drilling machine with positioning function according to claim 2, characterized in that, The movable clamping assembly (6) includes a spring (61) and a movable plate (62). Multiple springs (61) are provided. One end of the spring (61) is fixedly connected to the inner side of the side wall of the C-shaped plate (421), and the other end is fixedly connected to the movable plate (62).

4. A bicycle wheel rim drilling machine with positioning function according to claim 3, characterized in that, The pre-tightening assembly (7) includes multiple screws (71) and nuts (72). One end of the screw (71) is fixedly connected to the movable plate (62), and the other end passes through the side wall of the C-shaped plate (421) and is slidably connected to it. The screw (71) passing through the C-shaped plate (421) has a nut (72) threadedly connected to it.

5. A bicycle wheel rim drilling machine with positioning function according to claim 1, characterized in that, The intermittent rotation mechanism (2) includes a second motor (21), a non-complete gear (22), a complete gear (23), and a rotating shaft (24). The second motor (21) is fixedly connected to the bottom surface of the worktable (1). The output end of the second motor (21) is fixedly connected to the non-complete gear (22). The complete gear (23) is meshed on one side of the non-complete gear (22). The rotating shaft (24) is fixedly connected inside the complete gear (23). The lower end of the rotating shaft (24) is rotatably connected to the top surface of the worktable (1), and the upper end is fixedly connected to a turntable (3).

6. A bicycle wheel rim drilling machine with positioning function according to claim 1, characterized in that, The drilling mechanism (5) consists of a drilling assembly (51) and a lifting assembly (52). The drilling assembly (51) includes a hydraulic cylinder (511), a mounting plate (512), a drilling motor (513), and a drill bit (514). The output end of the hydraulic cylinder (511) is fixedly connected to the mounting plate (512), and the other side of the mounting plate (512) is fixedly connected to the drilling motor (513). The output end of the drilling motor (513) is fixedly connected to the drill bit (514). The lifting assembly (52) includes a U-shaped frame (521), a second lead screw (522), a third motor (523), a moving plate (524), a support rod (525), a bearing plate (526), ​​and a fixed seat (527). The upper end of the U-shaped frame (521) is fixedly connected to the bottom surface of the workbench (1). A second lead screw (522) is rotatably connected between the bottom plate of the workbench (1) and the bottom surface of the workbench (1). The lower end of the second lead screw (522) is fixedly connected to the output end of the third motor (523). The third motor (523) is fixedly connected to the U-shaped frame (521). A movable plate (524) is threadedly connected to the second lead screw (522). The movable plate (524) is slidably connected to the inner wall of the U-shaped frame (521). A support rod (525) is vertically connected to each side of the movable plate (524). The support rod (525) passes through the workbench (1) and is slidably connected to it. The upper ends of the two support rods (525) are fixedly connected to the bearing plate (526). A fixed seat (527) is fixedly connected to the bearing plate (526). The drilling assembly (51) is fixedly connected to the fixed seat (527).

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