Bending device for bicycle frame machining

Abstract

The utility model discloses a bending device for processing a bicycle frame, and relates to the technical field of bending devices, the bending device comprises a workbench, the top of the workbench is rotatably connected with a support roller, the rear side of the outer surface of the support roller is fixedly provided with a bending mechanism, and the rear part of the right side of the top of the workbench is fixedly connected with a fixing mechanism. According to the bicycle frame steel pipe bending device, the rotating support, the rotary knob, the driving wheel, the driven wheel, the first threaded rod, the threaded sliding plate and the bending roller are matched with one another, when a bicycle frame steel pipe is bent, the steel pipe can be inserted between the bending roller and the supporting roller, the rotary knob is rotated, and therefore the driving wheel can drive the driven wheel to rotate; according to the frame steel pipe bending device, the rotating shaft can rotate and can drive the first screw rod to rotate, so that the bending roller can be driven to move through the threaded sliding plate, the distance between the bending roller and the supporting roller can be adjusted, frame steel pipes of different sizes can be conveniently bent, and the bending device is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of bending devices, in particular to a bending device for processing a bicycle frame. Background Art

[0002] Bicycles can be used as an environmentally friendly means of transportation for commuting and traveling. More and more people use bicycles as fitness equipment for cycling exercise and bicycle travel. The frame of a bicycle is generally made of a combination of welded steel pipes. Due to the overall aesthetics and mechanical properties of the frame, some of the steel pipes need to be bent using a bending device before welding and assembling the steel pipes.

[0003] The existing technology has the following problems:

[0004] When the existing bending device is used to bend bicycle frame steel pipes, the distance between the bending roller and the support roller is fixed. When bending frame steel pipes of different sizes, it is very inconvenient and the bending roller and the support need to be reassembled and disassembled, which is not conducive to the use of the bending device. Utility Model Content

[0005] The utility model provides a bending device for processing a bicycle frame to solve the problems raised in the above background technology.

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

[0007] A bending device for processing a bicycle frame comprises a workbench, the top of which is rotatably connected to a support roller, a bending mechanism is fixedly installed on the rear side of the outer surface of the support roller, and a fixing mechanism is fixedly connected to the rear right side of the top of the workbench.

[0008] The bending mechanism includes a rotating bracket, which is fixedly installed on the rear side of the outer surface of the workbench, the rear end of the rotating bracket is movably connected with a knob, the front side of the knob is fixedly connected to a driving wheel, the inner rear side of the rotating bracket is provided with a movable groove, the driving wheel is movably connected to the inside of the movable groove and the upper and lower sides of the outer surface are meshed with the driven wheel, the front side of the driven wheel is fixedly connected with a first screw, the upper and lower sides of the rotating bracket are provided with a sliding groove 1, the front end of the first screw penetrates into the inside of the sliding groove 1 and the outer surface is threadedly connected with a threaded slide, the threaded slide is slidably connected to the inside of the sliding groove 1, and a bending roller is fixedly installed on the opposite surfaces of the two threaded slides.

[0009] A further improvement of the technical solution of the utility model is that: a bearing 1 is fixedly connected to the side of the threaded slide close to the bending roller, a connecting column 1 is fixedly connected to the inner surface of the bearing 1, and a plug-in groove is provided on the side of the connecting column 1 close to the bending roller.

[0010] A further improvement of the technical solution of the utility model is that: the bending roller includes a connecting roller, the connecting roller is arranged on the inner side of the rotating bracket, and two sliding grooves are opened on the upper and lower sides of the interior of the connecting roller, and the inner surface of the sliding groove is slidably connected to sliding push columns on the left and right sides, and the opposite surfaces of the two sliding push columns are movably connected to push rods, and the end of the sliding push column away from the push rod penetrates to the outer surface of the connecting roller.

[0011] A further improvement of the technical solution of the utility model is that: one end of the two pushing rods away from the sliding push column is movably connected to a fixed plug plate, one end of the fixed plug plate close to the threaded slide plate penetrates into the interior of the plug-in groove, and one end of the fixed plug plate away from the threaded slide plate is fixedly connected to a tightening spring.

[0012] A further improvement of the technical solution of the utility model is that the fixing mechanism includes a connecting frame, the connecting frame is fixedly connected to the rear right side of the top of the workbench, a second screw is threadedly connected to the middle of the rear side of the connecting frame, and a driving handle is fixedly connected to the rear end of the second screw.

[0013] A further improvement of the technical solution of the utility model is that the front end of the second screw is movably connected with a fixed clamp, the upper and lower ends of the fixed clamp are fixedly connected with a limiting slider, the inner surface of the connecting frame has limiting grooves on both the upper and lower sides, and the limiting slider is slidably connected inside the limiting groove.

[0014] A further improvement of the technical solution of the utility model is that the fixed splint includes a sliding push plate, the rear side of the sliding push plate is fixedly connected to a second bearing, the inner surface of the second bearing is fixedly connected to a second connecting column, and the rear end of the second connecting column is fixedly connected to the front end of the driving handle.

[0015] A further improvement of the technical solution of the utility model is that a rubber pad is fixedly installed on the front side of the sliding push plate, and a plurality of connecting buckles are fixedly connected to the rear side of the rubber pad, and the connecting buckles are slidably connected to the front side of the sliding push plate.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a bending device for processing a bicycle frame. By rotating the bracket, the knob, the driving wheel, the driven wheel, the first screw, the threaded slide and the bending roller, the steel pipe is inserted between the bending roller and the supporting roller when bending the steel pipe of the bicycle frame. By rotating the knob, the driving wheel can drive the driven wheel to rotate, and can drive the first screw to rotate, so that the bending roller can be driven to move through the threaded slide, and the distance between the bending roller and the supporting roller can be adjusted, which is convenient for bending frame steel pipes of different sizes and convenient for the use of the bending device.

[0018] 2. The utility model provides a bending device for bicycle frame processing. Through the mutual cooperation among the connecting frame, the second screw rod, the driving handle, the fixed splint, the limiting slider and the limiting slide groove, when the frame steel pipe is bent, the steel pipe will pass through the connecting frame, and the second screw rod can be driven to rotate by the driving handle, so that the fixed splint can clamp and fix the frame steel pipe through the thread cooperation with the connecting frame, making the bending process of the bicycle frame more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic cross-sectional structure diagram of the bending mechanism of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the bending roller of the utility model;

[0022] Figure 4 It is a schematic cross-sectional structure diagram of the fixing mechanism of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the fixed splint of the utility model.

[0024] In the figure: 1. workbench; 2. supporting roller; 3. bending mechanism; 31. rotating bracket; 32. knob; 33. driving wheel; 34. driven wheel; 35. first screw; 36. threaded slide plate; 361. bearing one; 362. connecting column one; 37. bending roller; 371. connecting roller; 372. sliding push column; 373. pushing rod; 374. fixing plug plate; 375. tightening spring; 4. fixing mechanism; 41. connecting frame; 42. second screw; 43. driving handle; 44. fixing splint; 441. sliding push plate; 442. connecting column two; 443. bearing two; 444. rubber pad; 445. connecting buckle; 45. limiting slider; 46. limiting slide groove. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods:

[0026] like Figure 1-2 As shown, the utility model provides a bending device for processing a bicycle frame, comprising a workbench 1, a support roller 2 is rotatably connected to the top of the workbench 1, a bending mechanism 3 is fixedly installed on the rear side of the outer surface of the support roller 2, a fixing mechanism 4 is fixedly connected to the rear right side of the top of the workbench 1, the bending mechanism 3 comprises a rotating bracket 31, the rotating bracket 31 is fixedly installed on the rear side of the outer surface of the workbench 1, a knob 32 is movably connected to the rear end of the rotating bracket 31, a driving wheel 33 is fixedly connected to the front side of the knob 32, a movable groove is provided on the inner rear side of the rotating bracket 31, the driving wheel 33 is movably connected to the inside of the movable groove and the upper and lower sides of the outer surface are meshed with a driven wheel 34, a first screw rod 35 is fixedly connected to the front side of the driven wheel 34, a sliding groove 1 is provided on the upper and lower sides of the rotating bracket 31, the front end of the first screw rod 35 penetrates into the inside of the sliding groove 1 and a threaded slide plate 36 is threadedly connected to the outer surface, the threaded slide plate 36 is slidably connected to the inside of the sliding groove 1, and a bending roller 37 is fixedly installed on the opposite surfaces of the two threaded slide plates 36;

[0027] When bending the steel pipe of the bicycle frame, the steel pipe will be inserted between the bending roller 37 and the supporting roller 2. By turning the knob 32, the driving wheel 33 can drive the driven wheel 34 to rotate, and can also drive the first screw 35 to rotate, thereby driving the threaded slide 36 to slide inside the sliding groove 1, and can drive the bending roller 37 to move, and can adjust the distance between the bending roller 37 and the supporting roller 2, so as to facilitate the bending processing of frame steel pipes of different sizes and the use of the bending device.

[0028] like Figure 3As shown, the utility model provides a bending device for processing a bicycle frame. A bearing 361 is fixedly connected to a side of a threaded slide plate 36 close to a bending roller 37. A connecting column 362 is fixedly connected to the inner surface of the bearing 361. The arrangement of the bearing 361 and the connecting column 362 ensures the normal rotation of the bending roller 37 after the installation of the bending roller 37 is completed. A plug-in groove is provided on the side of the connecting column 362 close to the bending roller 37. The bending roller 37 includes a connecting roller 371. The connecting roller 371 is arranged on the inner side of the rotating bracket 31. The inner surface of the connecting roller 371 is fixedly connected to the inner surface of the rotating bracket 31. The upper and lower sides of the part are provided with sliding grooves 2, and the left and right sides of the inner surface of the sliding grooves 2 are slidably connected with sliding push pillars 372, and the opposite surfaces of the two sliding push pillars 372 are movably connected with push rods 373, and the ends of the sliding push pillars 372 away from the push rods 373 penetrate into the outer surface of the connecting roller 371, and the ends of the two push rods 373 away from the sliding push pillars 372 are movably connected with a fixed plug plate 374, and the end of the fixed plug plate 374 close to the threaded slide plate 36 penetrates into the interior of the plug-in groove, and the end of the fixed plug plate 374 away from the threaded slide plate 36 is fixedly connected with a tightening spring 375;

[0029] Under the push of the tightening spring 375, the fixed plug plate 374 is inserted into the plug-in slot, so that the position of the bending roller 37 can be fixed. By pressing the sliding push column 372, the fixed plug plate 374 can be retracted through the push rod 373, so that the bending roller 37 is no longer restricted, making it convenient to disassemble and replace the bending roller 37, thereby facilitating the bending processing of different frame steel pipes.

[0030] like Figure 4-5As shown, the utility model provides a bending device for processing a bicycle frame, wherein a fixing mechanism 4 comprises a connecting frame 41, the connecting frame 41 is fixedly connected to the right rear side of the top of the workbench 1, a second screw rod 42 is threadedly connected to the middle part of the rear side of the connecting frame 41, a driving handle 43 is fixedly connected to the rear end of the second screw rod 42, a fixing clamp plate 44 is movably connected to the front end of the second screw rod 42, upper and lower ends of the fixing clamp plate 44 are fixedly connected to limiting sliders 45, limiting slide grooves 46 are provided on both upper and lower sides of the inner surface of the connecting frame 41, the limiting slider 45 is slidably connected to the inside of the limiting slide groove 46, and the fixing clamp plate can be adjusted by sliding the limiting slider 45 in the limiting slide groove 46. The movement of the plate 44 is restricted, and the fixed clamping plate 44 includes a sliding push plate 441, and the rear side of the sliding push plate 441 is fixedly connected with a bearing 2 443, through which the second screw 42 can push the sliding push plate 441 to slide while rotating, and the inner surface of the bearing 2 443 is fixedly connected with a connecting column 2 442, and the rear end of the connecting column 2 442 is fixedly connected to the front end of the driving handle 43, and the front side of the sliding push plate 441 is fixedly installed with a rubber pad 444, and the rear side of the rubber pad 444 is fixedly connected with a plurality of connecting buckles 445, and the connecting buckles 445 are slidably connected to the front side of the sliding push plate 441, and the rubber pad 444 can be installed and fixed by the connecting buckles 445;

[0031] When the frame steel pipe is bent, the steel pipe will pass through the connecting frame 41, and by rotating the driving handle 43, the second screw rod 42 can be driven to rotate, so that by cooperating with the thread of the connecting frame 41, the second screw rod 42 can push the sliding push plate 441 to slide through the connecting column 442, and can clamp and fix the steel pipe passing through the frame. At the same time, the rubber pad 444 can avoid damage to the surface of the steel pipe, making the bending process of the bicycle frame more convenient.

[0032] The working principle of the bending device for bicycle frame processing will be described in detail below.

[0033] like Figure 1-5 As shown, when bending the steel pipe of the bicycle frame, the steel pipe is passed through the connecting frame 41, and by rotating the driving handle 43, the second screw 42 can be driven to push the sliding push plate 441 to clamp and fix the steel pipe passing through the frame. At the same time, the steel pipe will be inserted between the bending roller 37 and the supporting roller 2. By rotating the knob 32, the active wheel 33 can drive the driven wheel 34 to rotate, and can drive the first screw 35 to drive the threaded slide plate 36 to slide, thereby driving the bending roller 37 to move, and the distance between the bending roller 37 and the supporting roller 2 can be adjusted. After that, by rotating the supporting roller 2, the bending roller 37 can be driven to rotate through the rotating bracket 31, and the bending process of the steel pipe can be completed.

[0034] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A bending device for processing a bicycle frame, comprising a workbench (1), the top of the workbench (1) being rotatably connected to a support roller (2), characterized in that: A bending mechanism (3) is fixedly installed on the rear side of the outer surface of the support roller (2), and a fixing mechanism (4) is fixedly connected to the rear right side of the top of the workbench (1); The bending mechanism (3) comprises a rotating bracket (31), wherein the rotating bracket (31) is fixedly mounted on the rear side of the outer surface of the workbench (1), the rear end of the rotating bracket (31) is movably connected to a knob (32), the front side of the knob (32) is fixedly connected to a driving wheel (33), the inner rear side of the rotating bracket (31) is provided with a movable groove, the driving wheel (33) is movably connected inside the movable groove and the upper and lower sides of the outer surface are meshedly connected to a driven wheel (34), the front side of the driven wheel (34) is fixedly connected to a first screw rod (35), the upper and lower sides of the rotating bracket (31) are provided with a sliding groove 1, the front end of the first screw rod (35) penetrates into the interior of the sliding groove 1 and the outer surface is threadedly connected to a threaded slide plate (36), the threaded slide plate (36) is slidably connected inside the sliding groove 1, and a bending roller (37) is fixedly mounted on the opposite surfaces of the two threaded slide plates (36).

2. A bicycle frame bending device according to claim 1, characterized in that: A bearing 1 (361) is fixedly connected to the side of the threaded slide plate (36) close to the bending roller (37), a connecting column 1 (362) is fixedly connected to the inner surface of the bearing 1 (361), and a plug-in groove is provided on the side of the connecting column 1 (362) close to the bending roller (37).

3. A bicycle frame processing bending device according to claim 2, characterized in that: The bending roller (37) includes a connecting roller (371), and the connecting roller (371) is arranged on the inner side of the rotating bracket (31). The connecting roller (371) is provided with sliding grooves 2 on both the upper and lower sides inside. The inner surface of the sliding groove 2 is slidably connected with sliding push columns (372) on both the left and right sides. The opposite surfaces of the two sliding push columns (372) are movably connected with push rods (373). The end of the sliding push column (372) away from the push rod (373) penetrates to the outer surface of the connecting roller (371).

4. A bicycle frame bending device according to claim 3, characterized in that: One end of the two pushing rods (373) away from the sliding push column (372) is movably connected to a fixed plug plate (374), and one end of the fixed plug plate (374) close to the threaded slide plate (36) penetrates into the interior of the plug-in slot, and one end of the fixed plug plate (374) away from the threaded slide plate (36) is fixedly connected to a tightening spring (375).

5. The bicycle frame bending device according to claim 1, characterized in that: The fixing mechanism (4) comprises a connecting frame (41), wherein the connecting frame (41) is fixedly connected to the rear right side of the top of the workbench (1), a second screw rod (42) is threadedly connected to the middle of the rear side of the connecting frame (41), and a driving handle (43) is fixedly connected to the rear end of the second screw rod (42).

6. A bicycle frame processing bending device according to claim 5, characterized in that: The front end of the second screw rod (42) is movably connected to a fixed clamp (44), and the upper and lower ends of the fixed clamp (44) are fixedly connected to a limiting slide block (45). The inner surface of the connecting frame (41) is provided with limiting slide grooves (46) on both upper and lower sides, and the limiting slide block (45) is slidably connected inside the limiting slide groove (46).

7. A bicycle frame bending device according to claim 6, characterized in that: The fixed clamping plate (44) comprises a sliding push plate (441), the rear side of the sliding push plate (441) is fixedly connected to a second bearing (443), the inner surface of the second bearing (443) is fixedly connected to a second connecting column (442), and the rear end of the second connecting column (442) is fixedly connected to the front end of the driving handle (43).

8. The bicycle frame bending device according to claim 7, characterized in that: A rubber pad (444) is fixedly installed on the front side of the sliding push plate (441), and a plurality of connecting buckles (445) are fixedly connected to the rear side of the rubber pad (444), and the connecting buckles (445) are slidably connected to the front side of the sliding push plate (441).

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