A bending device for processing bicycle rim

Abstract

This utility model discloses a bending device for processing bicycle rims, including a worktable. A ring is rotatably mounted on the worktable. Several forks are evenly distributed and connected to the inner curved surface of the ring. The inner ends of the forks are connected to the outer curved surface of the bushing. A pressure roller of a pressing mechanism is set on one side of the ring. The frame of the pressing mechanism is connected to the worktable. A stop roller of a pressing mechanism is set on the rear side of the pressure roller. Several support rollers are spaced apart in the tangential direction on the front side of the pressure roller. The support rollers are rotatably connected to a guide frame, which is connected to the worktable. The device has a simple structure, reasonable design, and novel and unique concept. During the rotation of the ring, the pressure roller presses the wheel plate into the groove of the ring, and the stop roller presses against the end of the wheel plate. The stop roller rotates with the ring under the drive of a motor, causing the wheel plate to bend into a rim shape.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to a bending device for processing bicycle rims. Background Technology

[0002] A bicycle is a small land vehicle driven by human pedaling. It is usually two-wheeled, but there are also three-wheeled ones (mainly used for freight and relatively rare). It can be used as an environmentally friendly means of transportation for getting around, or as fitness equipment for cycling and cycling tours.

[0003] In the production process of bicycles, steel strips or aluminum alloy strips need to be processed into ring shapes to make bicycle rims.

[0004] However, current processing techniques involve one-piece molding or casting, which requires a different mold for each type of wheel rim. This increases the production cost of the wheel rim, makes the process complex, and reduces production efficiency. Therefore, this application discloses a bending device for processing bicycle wheel rims. Utility Model Content

[0005] The purpose of this invention is to address existing problems by providing a device for processing bicycle wheel rims with curved surfaces.

[0006] This utility model is achieved through the following technical solution: A bending device for processing bicycle wheel rims includes a worktable. A ring is rotatably mounted on the worktable. Several forks are evenly distributed and connected to the inner curved surface of the ring. The inner ends of the forks are connected to the outer curved surface of the bushing. A pressure roller of a pressing mechanism is mounted on one side of the ring. The frame of the pressing mechanism is connected to the worktable. A pressing roller of a pressing mechanism is mounted on the rear side of the pressure roller. Several support rollers are spaced apart in the tangential direction on the front side of the pressure roller. The support rollers are rotatably connected to a guide frame, which is connected to the worktable.

[0007] As a further improvement to the above solution, an annular groove is provided on the outer curved surface of the ring, and the cross-sectional shape of the annular groove matches one side of the wheel plate used for bending and arcing. The wheel plate is bent and its arc is broken by matching the shape of the groove on one side of the wheel plate with the groove of the ring.

[0008] As a further improvement to the above solution, the pressure ring mechanism includes a pressure wheel, which is rotatably connected to the wheel frame. The working rod of the hydraulic cylinder is connected to the middle of the outer side of the wheel frame. The hydraulic cylinder is mounted on the frame. Guide rods are symmetrically arranged on the upper and lower sides of the working rod. The outer ends of the guide rods are through and movably supported on the frame. The hydraulic cylinder drives the wheel frame and pressure roller to approach and / or move away from the groove on the outer curved surface of the ring, and the pressure roller presses and bends the wheel plate.

[0009] As a further improvement to the above solution, the pressing mechanism includes a pressing wheel, which is rotatably connected to a slide, the slide is slidably mounted on a ring, a support rod is provided between the slide and the ring, the outer end of the support rod passes through and supports the slide away from the pressing wheel, a spring is fitted on the support rod, and the slide is symmetrically provided with sliding grooves on the upper and lower sides, with a stop block provided in the sliding groove, and the stop block is connected to the end of the wheel rim. At the same time, the abutment roller presses the end of the wheel plate into the groove of the ring. The abutment roller contacts the groove under the action of the spring, and the slide carriage moves under the action of the spring. The stop block limits the movement of the slide carriage in the groove, ensuring that the movement of the slide carriage is stable and that the abutment roller effectively presses the end of the wheel plate into the groove.

[0010] As a further improvement to the above solution, the bushing is fitted onto the rotating shaft, the rotating shaft is connected through and rotatably to the worktable, and the lower end of the rotating shaft is connected to the output shaft of the motor. The servo motor drives the shaft to rotate, which in turn rotates the bushing. The fork and ring, which are integrally connected to the bushing, also rotate together.

[0011] As a further improvement to the above solution, the outer curved surfaces of the pressure roller and the abutment roller are matched to the other side of the bending and arc-shaped wheel plate, so that the pressure roller and the abutment roller can press against the side.

[0012] Compared with the prior art, this utility model has the following advantages: it has a simple structure, reasonable design, and novel and unique concept. During the rotation of the ring, the pressure roller presses the wheel plate into the groove of the ring, and the abutment roller presses against the end of the wheel plate. The abutment roller rotates with the ring under the drive of the motor, causing the wheel plate to bend into a wheel ring shape. The processing and forming is fast, the production efficiency is high, and the mass production is large. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure for installing a pressure-absorbing mechanism on a wheel rim.

[0015] Figure 3 This is a schematic diagram of the installation structure of the pressure ring mechanism. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] like Figure 1-3As shown, a bending device for processing bicycle wheel rims includes a worktable 1. A ring 2 is rotatably mounted on the worktable 1. Several forks 7 are evenly distributed and connected to the inner curved surface of the ring 2. The inner ends of the forks 7 are connected to the outer curved surface of the bushing 8. A pressing roller 31 of a pressing mechanism 3 is provided on one side of the ring 2. The frame 34 of the pressing mechanism 3 is connected to the worktable 1. A pressing roller 41 of a pressing mechanism 4 is provided on the rear side of the pressing roller 31. Several support rollers 5 are spaced apart in the tangential direction on the front side of the pressing roller 31. The support rollers 5 are rotatably connected to a guide frame 6. The guide frame 6 is connected to the worktable 1.

[0018] As a further improvement to the above solution, an annular groove 21 is provided on the outer curved surface of the ring 2, and the cross-sectional shape of the annular groove 21 matches one side of the wheel plate 10 used for bending and arcing. The shape of the groove 21 of the ring 2 is matched with one side surface of the wheel plate 10 to facilitate bending and arc removal of the wheel plate 10.

[0019] As a further improvement to the above solution, the pressure ring mechanism 3 includes a pressure wheel 31, which is rotatably connected to the wheel frame 32. The working rod of the hydraulic cylinder 33 is connected to the middle of the outer side of the wheel frame 32. The hydraulic cylinder 33 is mounted on the frame 34. Guide rods 35 are symmetrically arranged on the upper and lower sides of the working rod. The outer end of the guide rod 35 is through and movably supported on the frame 34. The hydraulic cylinder 33 drives the wheel frame 32 and the pressure roller 31 to approach and / or move away from the groove 21 on the outer curved surface of the ring 2, and the pressure roller 31 presses and bends the wheel plate 10.

[0020] As a further improvement to the above solution, the pressing mechanism 4 includes a pressing wheel 41, which is rotatably connected to a slide 42. The slide 42 is slidably mounted on a ring 2. A support rod 43 is provided between the slide 42 and the ring 2. The outer end of the support rod 43 passes through and supports the slide 42 at the end away from the pressing wheel 41. A spring 44 is fitted on the support rod 43. The slide 42 is symmetrically provided with sliding grooves 45 on the upper and lower sides. A stop block 46 is provided in the sliding groove 45 and is connected to the end of the wheel rim. At the same time, the abutment wheel 41 presses the end of the wheel plate 10 into the groove 21 of the ring 2. The abutment wheel 41 contacts the groove 21 under the force of the spring 44. At the same time, the slide 42 moves under the force of the spring 44 and is limited in the slide groove 45 by the stop block 46, so as to ensure the smooth movement of the slide 42 and ensure that the abutment wheel 41 effectively presses the end of the wheel plate 10 into the groove 21.

[0021] As a further improvement to the above solution, the bushing 8 is sleeved on the rotating shaft 9, the rotating shaft 9 is connected to the worktable 1 through and rotatably, and the lower end of the rotating shaft 9 is connected to the output shaft of the motor. The servo motor drives the shaft 9 to rotate the bushing 8, and the fork 7 and ring 2, which are integrally connected to the bushing 8, also rotate together.

[0022] As a further improvement to the above solution, the outer curved surfaces of the pressure roller 31 and the abutment roller 41 are matched with the other side of the wheel plate 10 used for bending and folding, so that the pressure roller 31 and the abutment roller 41 can press against the side surface.

[0023] The working principle of a bending device for processing bicycle rims: The ring 2 rotates under the drive of a servo motor. During the rotation, the pressure roller 31 presses against the groove 21 of the ring 2 on the wheel plate 10, and the abutment roller 41 presses against the end of the wheel plate 10. The abutment roller 41 rotates with the ring 2 under the drive of the motor, causing the wheel plate 10 to bend into a rim shape. In addition, rims of different specifications can be produced according to the length of the wheel plate 10.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for processing bicycle wheel rims by bending arcs, comprising a worktable, characterized in that, A ring is rotatably mounted on the worktable. Several forks are evenly distributed on the inner curved surface of the ring. The inner ends of the forks are connected to the outer curved surface of the bushing. A pressure roller of a pressing mechanism is mounted on one side of the ring. The frame of the pressing mechanism is connected to the worktable. A pressing roller of a pressing mechanism is mounted on the rear side of the pressure roller. Several support rollers are spaced apart in the tangential direction on the front side of the pressure roller. The support rollers are rotatably connected to a guide frame. The guide frame is connected to the worktable.

2. The bending device for processing bicycle wheel rims according to claim 1, characterized in that, The outer curved surface of the ring is provided with an annular groove, and the cross-sectional shape of the annular groove matches one side of the wheel plate used for bending and folding.

3. The bending device for processing bicycle rims according to claim 1, characterized in that, The pressure ring mechanism includes a pressure roller, which is rotatably connected to the wheel frame. A hydraulic cylinder working rod is connected to the middle of the outer side of the wheel frame. The hydraulic cylinder is mounted on the machine frame. Guide rods are symmetrically arranged on the upper and lower sides of the working rod. The outer ends of the guide rods are through and movably supported on the machine frame.

4. The bending device for processing bicycle rims according to claim 1, characterized in that, The aforementioned pressing mechanism includes a pressing wheel, which is rotatably connected to a slide frame. The slide frame is slidably mounted on a ring. A support rod is provided between the slide frame and the ring. The outer end of the support rod passes through and supports the slide frame at the end away from the pressing wheel. A spring is fitted on the support rod. The slide frame is symmetrically provided with sliding grooves on its upper and lower sides. A stop block is provided in the sliding groove and is connected to the end of the wheel rim.

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