A tubing bending and shaping device for children's vehicle manufacturing

Abstract

This invention discloses a tube bending and shaping device for children's vehicle manufacturing, comprising a machine body, on which conveying rollers and positioning seats are symmetrically arranged. The conveying rollers are used to convey the tubes. A steering cylinder for rotating the tubes is arranged between the conveying rollers and the positioning seats on the machine body. A bending rotating seat is rotatably arranged at one end of the machine body located at the positioning seat. A bending wheel for bending the tubes is fixedly arranged at one end of the bending rotating seat. A tube end limiter for clamping and fixing the tubes is arranged on one side of the bending wheel. A bending fixing block adapted to the tube end limiter is slidably arranged at the other end of the bending rotating seat. During bending, one end of the tube is clamped and fixed by the bending fixing block and the tube end limiter. Then, the bending wheel rotates with the bending rotating seat to bend the tubes. It can also be used in conjunction with the steering cylinder to bend the tubes, so that the tubes can be bent in multiple directions to meet different tube bending requirements.

Description

Technical Field

[0001] This invention relates to the field of pipe bending technology, and more specifically to a pipe bending and shaping device for children's vehicle manufacturing. Background Technology

[0002] Children's vehicles are a major category of transportation products, including five main types: children's bicycles, strollers, baby walkers, tricycles, and electric vehicles. The manufacturing process of children's vehicle frames involves bending the tubing. The principle behind tubing bending is that when a tube is bent under the action of an external torque, the outer wall of the neutral layer experiences tensile stress, causing the wall to thin; the inner wall of the neutral layer experiences compressive stress, causing the wall to thicken. Furthermore, the shape of the tube's cross-section changes from circular to approximately elliptical due to the resultant force.

[0003] The current problem is that the bending device's ability to fix the pipe is not stable. When bending the pipe, it is easy for it to rotate, slip, and shift due to the strong bending force. At the same time, the bending angle of some pipes is a change of spatial geometric angle. Most bending devices require manual adjustment of the pipe's position and angle after the first bend for a second bend, which is time-consuming and labor-intensive, reducing the efficiency of continuous bending of the same pipe in different directions. Summary of the Invention

[0004] The purpose of this invention is to provide a tube bending and shaping device for children's vehicle manufacturing, so as to solve the technical problems mentioned above.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A tubing bending and shaping device for children's vehicle manufacturing includes a machine body. A conveying roller and a positioning seat are symmetrically arranged on the machine body. A steering cylinder for rotating the tubing is located between the conveying roller and the positioning seat on the machine body. A bending rotating seat is rotatably mounted on one end of the machine body at the positioning seat. A bending wheel for bending the tubing is fixedly mounted on one end of the bending rotating seat. A tube end limiter for clamping and fixing the tubing is provided on one side of the bending wheel. A bending fixing block adapted to the tube end limiter is slidably mounted on the other end of the bending rotating seat.

[0007] As a further aspect of the present invention: the interior of the machine body is symmetrically provided with fixed frames, and two sets of displacement components are provided between the two fixed frames. The displacement components include a displacement screw that is rotatably disposed between the two fixed frames and has a bidirectional thread. Displacement slides for limiting and supporting are fixedly provided on both sides of the displacement screw. Displacement seats are symmetrically provided on the displacement screw and the displacement slides. A displacement motor with its output end connected to the displacement screw is provided on one side of one of the fixed frames.

[0008] As a further embodiment of the present invention: the conveying roller is rotatably mounted on a displacement seat in one of the displacement components, a conveying transmission gear is provided below the conveying roller, a conveying motor is provided at the end of the displacement seat, and a conveying power gear is provided on the output end of the conveying motor and connected to the conveying transmission gear via a transmission belt;

[0009] The positioning seats are respectively disposed on the displacement seats in another set of displacement components.

[0010] As a further embodiment of the present invention: a guide block is slidably provided on one side of the positioning seat, a positioning slide post is provided inside the positioning seat, and guide return springs are symmetrically sleeved on the positioning slide post. A slider is fixedly provided on one side of the guide block, and the slider is slidably provided on the positioning slide post inside the positioning seat and located between the two guide return springs.

[0011] As a further embodiment of the present invention: two outer supports are symmetrically arranged on the body, the steering cylinder is rotatably arranged between the two outer supports, and steering rings are rotatably arranged at both ends of the steering cylinder and inside the two outer supports. A plurality of connecting rods are arranged in a circular array on the outer side of the steering rings, and steering power wheels are fixedly arranged on the outer side of the plurality of connecting rods. A plurality of clamping cylinders are arranged in a circular array between the steering power wheels and the steering rings, and the protruding end of the clamping cylinder is inserted into the steering ring.

[0012] As a further embodiment of the present invention: a support frame is symmetrically arranged inside the body and below the steering cylinder, a steering power shaft is rotatably arranged between the two support frames, a steering gear is symmetrically arranged on the steering power shaft and respectively meshes with the steering power wheel, and a steering motor with its output end connected to the steering power shaft is fixedly arranged on one side of one of the support frames.

[0013] As a further aspect of the present invention: the steering ring is symmetrically provided with steering rails on both sides, and the steering ring is rotatably connected to the steering cylinder through the steering rails.

[0014] As a further aspect of the present invention: a bending motor is provided inside the machine body and below the bending rotating seat, the output end of the bending motor is fixedly connected to the bending rotating seat, and the center line of the output end of the bending motor coincides with the center line of the bending wheel.

[0015] As a further aspect of the present invention: bending slide rails are symmetrically arranged above the bending rotary seat, and a fixing cylinder is fixedly arranged on the bending rotary seat and located between the two bending slide rails. The bending fixing block is slidably arranged on the bending slide rail and fixedly connected to the extended end of the fixing cylinder.

[0016] As a further embodiment of the present invention: a power block is provided below the displacement seat and threadedly connected to the displacement screw, and limit blocks are symmetrically provided below the displacement seat and slidably connected to the displacement slide rod.

[0017] The beneficial effects of this invention are:

[0018] (1) In this invention, the conveying motor drives the conveying power gear to rotate, which in turn drives the conveying transmission gear to rotate via the transmission belt. At this time, the conveying rollers located on the machine body can rotate. When the pipe passes between the two conveying rollers, the two conveying rollers can clamp the pipe under the action of the relative movement of the displacement seat. At the same time, in conjunction with the action of the conveying motor, the pipe can be conveyed without manual intervention, which solves the problem of bending deviation caused by manual operation and affects the yield of pipe.

[0019] (2) In this invention, due to the bending force on the pipe itself during bending, a certain tension will be formed in the direction perpendicular to itself, that is, a certain extrusion force will be exerted on the positioning seat. At the same time, the pipe needs to move forward. At this time, it is necessary not only to ensure the forward movement of the pipe body, but also to ensure the stability of the pipe. Therefore, the pipe can be clamped and fixed by two symmetrically arranged positioning seats that can move relative to each other. At the same time, when the pipe is bent, when the pipe moves forward a certain distance, the two guide blocks clamping the pipe will move forward between the two positioning seats as the pipe moves forward, ensuring the stability and accuracy of the pipe during the bending process.

[0020] (3) In this invention, when the pipe is bent, the bending direction will be multi-angle bending, that is, the bent pipe has a three-dimensional spatial geometric structure. At this time, it is necessary to ensure that the pipe is rotated according to the bending requirements during the bending process. The pipe is clamped and fixed by extending the clamping cylinder, and then the steering power shaft is rotated by the steering motor, which in turn drives the steering gear to rotate. At this time, the steering gear can drive the steering power wheel that meshes with it to rotate. After the clamping cylinder clamps and fixes the pipe, the pipe can be rotated by rotating the steering power wheel to ensure that the pipe meets the multi-angle bending requirements during the bending process. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the connection structure between the displacement component and the fixative in this invention;

[0024] Figure 3 This is a schematic diagram of the connection structure between the displacement seat and the conveying roller in this invention;

[0025] Figure 4 This is a schematic diagram of the positional structure of the conveyor roller and the machine body in this invention;

[0026] Figure 5 This is a schematic cross-sectional view of the connection structure between the steering cylinder and the outer support in this invention;

[0027] Figure 6 This is a partial cross-sectional schematic diagram of the connection structure between the steering ring and the steering cylinder in this invention;

[0028] Figure 7 This is a schematic diagram of the connection structure between the steering ring and the steering power wheel in this invention;

[0029] Figure 8 This is a schematic diagram of the connection structure between the positioning seat and the displacement seat in this invention;

[0030] Figure 9 This is a cross-sectional schematic diagram of the connection structure between the guide block and the positioning seat in this invention;

[0031] Figure 10 This is a schematic diagram of the connection structure between the bending motor and the bending rotary seat in this invention.

[0032] In the diagram: 1. Machine body; 10. Translation position; 11. Fixing frame; 12. Displacement assembly; 121. Displacement screw; 122. Displacement slide bar; 123. Displacement seat; 1231. Power block; 1232. Limit block; 124. Displacement motor; 2. Conveyor roller; 21. Conveyor transmission gear; 22. Conveyor power gear; 23. Transmission belt; 24. Conveyor motor; 3. Steering cylinder; 31. Outer support; 32. Steering ring; 321. Steering rail; 33. 331. Steering power wheel; 332. Connecting rod; 333. Clamping cylinder; 34. Support frame; 35. Steering power shaft; 36. Steering gear; 37. Steering motor; 4. Positioning seat; 401. Positioning slide column; 402. Guide return spring; 41. Guide block; 411. Slider; 5. Bending rotary seat; 50. Bending motor; 51. Bending wheel; 510. Pipe end limit; 52. Bending fixing block; 521. Fixing cylinder; 522. Bending slide rail. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1 - Figure 10As shown, this invention relates to a tubing bending and shaping device for children's vehicle manufacturing, comprising a machine body 1. Conveying rollers 2 and positioning seats 4 are symmetrically arranged on the machine body 1. The conveying rollers 2 are used to convey the tubing, causing it to move forward sequentially. Additionally, a steering cylinder 3 for rotating the tubing is located between the conveying rollers 2 and the positioning seats 4 on the machine body 1. A bending rotating seat 5 is rotatably mounted on one end of the positioning seats 4 on the machine body 1. A bending wheel 51 for bending the tubing is fixedly mounted at one end of the bending rotating seat 5. One side of the bending wheel 51 is provided with a pipe end limiter 510 for clamping and fixing the pipe. The other end of the bending rotary seat 5 is slidably provided with a bending fixing block 52 that is adapted to the pipe end limiter 510. When bending, one end of the pipe is clamped and fixed by the bending fixing block 52 and the pipe end limiter 510. Then the bending wheel 51 can bend the pipe by rotating with the bending rotary seat 5. When bending, it can be used with the steering cylinder 3 to bend the pipe, so that the pipe can be bent in multiple directions to meet different pipe bending requirements.

[0035] Specifically, refer to Figure 2 As shown, the machine body 1 has symmetrically arranged fixed frames 11 inside. Two sets of displacement components 12 are arranged between the two fixed frames 11, one set located below the conveying roller 2 and the other below the positioning seat 4. Each displacement component 12 includes a displacement screw 121 rotatably disposed between the two fixed frames 11 and having bidirectional threads. Then, displacement slide rods 122 for limiting and supporting are fixedly arranged on both sides of the displacement screw 121. Two displacement seats 123 are symmetrically arranged on the displacement screw 121 and the displacement slide rods 122. A displacement motor 124 with its output end connected to the displacement screw 121 is provided on one side of the fixed frame 11. A power block 1231 is provided below the displacement seat 123 and is threadedly connected to the displacement screw 121. Limit blocks 1232 are symmetrically provided below the displacement seat 123 and are slidably connected to the displacement slide rod 122. The displacement screw 121 is driven to rotate by the displacement motor 124. At this time, the displacement seat 123, which is threadedly connected to the displacement screw 121, can move relative to the displacement screw 123 under the limiting action of the two displacement slide rods 122.

[0036] Then, refer to Figure 3 and Figure 4As shown, the conveyor roller 2 slides within the translation position 10 on the machine body 1. Similarly, the positioning seat 4 also slides within the translation position 10 on the machine body 1. The conveyor roller 2 is rotatably mounted on the displacement seat 123 in one of the displacement components 12. A conveyor transmission gear 21 is provided below the conveyor roller 2. A conveyor motor 24 is provided at the end of the displacement seat 123. A conveyor power gear 22 is provided on the output end of the conveyor motor 24 and connected to the conveyor transmission gear 21 via a transmission belt 23. The conveyor motor 24 drives the conveyor power gear 22 to rotate, which in turn drives the conveyor transmission gear 21 to rotate via the transmission belt 23. At this time, the conveyor roller 2 on the machine body 1 can rotate. When the pipe passes between the two conveyor rollers 2, the two conveyor rollers 2 can clamp the pipe under the action of the relative movement of the displacement seat 123. At the same time, in conjunction with the action of the conveyor motor 24, the pipe can be conveyed without manual intervention, which solves the problem of bending deviation caused by manual operation and affects the yield of pipe.

[0037] Secondly, refer to Figure 8 and Figure 9 As shown, the positioning seats 4 are respectively set on the displacement seats 123 in another set of displacement components 12; a guide block 41 is slidably set on one side of the positioning seat 4, and a positioning slide post 401 is set inside the positioning seat 4. A guide return spring 402 is symmetrically sleeved on the positioning slide post 401. A slider 411 is fixedly set on one side of the guide block 41. The slider 411 is slidably set on the positioning slide post 401 inside the positioning seat 4 and is located between the two guide return springs 402. When the pipe is bent, the whole pipe will move forward. At the same time, due to the pressure on the pipe itself during bending... The bending force creates tension in the direction perpendicular to the pipe, resulting in a certain compressive force on the positioning seat 4. Since the pipe needs to move forward, it's crucial to ensure both its forward movement and stability. Therefore, two symmetrically arranged positioning seats 4 that can move relative to each other can clamp and fix the pipe. Simultaneously, when the pipe moves forward a certain distance during bending, the two guide blocks 41 clamping the pipe move forward between the two positioning seats 4, ensuring the stability and accuracy of the pipe during bending.

[0038] Regarding the design and installation structure of steering cylinder 3, refer to... Figure 5 , Figure 6 and Figure 7As shown, two outer supports 31 are symmetrically arranged on the body 1. The steering cylinder 3 is rotatably arranged between the two outer supports 31. Steering rings 32 are rotatably arranged at both ends of the steering cylinder 3 and inside the two outer supports 31. Several connecting rods 331 are arranged in a ring array on the outer side of the steering rings 32. Steering power wheels 33 are fixedly arranged on the outer side of the connecting rods 331. Several clamping cylinders 332 are arranged in a ring array between the steering power wheels 33 and the steering rings 32. The extended end of the clamping cylinder 332 is inserted into the steering ring 32. When the pipe is bent, the bending direction will be multi-angle bending, that is, the bent pipe has a three-dimensional spatial geometric structure. At this time, it is necessary to ensure that the pipe is rotated according to the bending requirements during the bending process. The clamping cylinders 332 extend to clamp and fix the pipe. Then, rotating the steering ring 32 can rotate the pipe to ensure that the pipe meets the multi-angle bending requirements during the bending process.

[0039] Specifically, support frames 34 are symmetrically arranged inside the body 1 and below the steering cylinder 3. A steering power shaft 35 is rotatably arranged between the two support frames 34. Steering gears 36 are symmetrically arranged on the steering power shaft 35 and are respectively meshed with the steering power wheel 33. A steering motor 37 with its output end connected to the steering power shaft 35 is fixedly arranged on one side of one support frame 34. Secondly, steering rails 321 are symmetrically arranged on both sides of the steering ring 32. The steering ring 32 is rotatably connected to the steering cylinder 3 through the steering rails 321. The steering power shaft 35 is driven to rotate by the steering motor 37, which in turn drives the steering gear 36 to rotate. At this time, the steering gear 36 can drive the steering power wheel 33 meshing with it to rotate. After the clamping cylinder 332 clamps and fixes the pipe, the pipe can be rotated by rotating the steering power wheel 33 to meet the requirements of multi-angle bending.

[0040] Reference Figure 10 As shown, a bending motor 50 is installed inside the machine body 1 and below the bending rotary seat 5. The output end of the bending motor 50 is fixedly connected to the bending rotary seat 5. The center line of the output end of the bending motor 50 coincides with the center line of the bending wheel 51. By driving the bending rotary seat 5 to rotate through the bending motor 50, the pipe can be bent.

[0041] In addition, bending slide rails 522 are symmetrically arranged above the bending rotary seat 5. A fixing cylinder 521 is fixedly arranged on the bending rotary seat 5 and between the two bending slide rails 522. The bending fixing block 52 is slidably arranged on the bending slide rail 522 and fixedly connected to the extended end of the fixing cylinder 521. The extension of the fixing cylinder 521 can push the bending fixing block 52 to clamp and fix the pipe.

[0042] In the design, the sides of the conveying roller 2, guide block 41, bending wheel 51 and bending fixing block 52 are all provided with arc-shaped grooves that are compatible with the pipe material.

[0043] Working principle of the invention:

[0044] During operation, the pipe is placed between the conveying rollers 2. The displacement motor 124 drives the displacement screw 121 to rotate. At this time, the displacement seat 123, which is threaded to the displacement screw 121, moves relative to the displacement slide rod 122 under the limiting action of the two displacement slide rods 122, so that the conveying rollers 2 clamp the pipe. At the same time, the conveying motor 24 drives the conveying power gear 22 to rotate, which can drive the conveying transmission gear 21 to rotate through the transmission belt 23. At this time, the conveying rollers 2 on the machine body 1 rotate and convey the pipe. The pipe passes through the turning cylinder 3, then through the two positioning seats 4, and then through the bending wheel 51 and the bending fixing block 52. When the pipe extends a certain length, the bending fixing block 52 moves towards the bending wheel 51 to clamp and fix the pipe. Then the two positioning seats 4 clamp and fix the pipe at the same time. Then the bending motor 50 drives the bending rotating seat 5 to rotate and bend the pipe.

[0045] When it is necessary to adjust the bending direction of the pipe, the two positioning seats 4 separate, the clamping cylinder 332 extends to clamp and fix the pipe, the steering motor 37 drives the steering power shaft 35 to rotate, which in turn drives the steering gear 36 to rotate. At this time, the steering gear 36 can drive the steering power wheel 33 meshing with it to rotate, and then the steering ring 32 can rotate the pipe, and finally bend the pipe.

[0046] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A tubular bending and shaping device for children's vehicle manufacturing, comprising a machine body (1), characterized in that, The machine body (1) is symmetrically provided with a conveying roller (2) and a positioning seat (4). A steering cylinder (3) for rotating the pipe is provided between the conveying roller (2) and the positioning seat (4) on the machine body (1). A bending rotating seat (5) is rotatably provided at one end of the positioning seat (4) on the machine body (1). A bending wheel (51) for bending the pipe is fixedly provided at one end of the bending rotating seat (5). A pipe end limiter (510) for clamping and fixing the pipe is provided on one side of the bending wheel (51). A bending fixing block (52) adapted to the pipe end limiter (510) is slidably provided at the other end of the bending rotating seat (5). The body (1) is symmetrically provided with fixed frames (11) inside. Two sets of displacement components (12) are provided between the two fixed frames (11). The displacement component (12) includes a displacement screw (121) rotatably disposed between the two fixed frames (11) and having a bidirectional thread. Displacement slides (122) for limiting and supporting are fixedly provided on both sides of the displacement screw (121). Displacement seats (123) are symmetrically provided on the displacement screw (121) and the displacement slides (122). A displacement motor (124) with its output end connected to the displacement screw (121) is provided on one side of one of the fixed frames (11). The conveying roller (2) is rotatably mounted on a displacement seat (123) in one of the displacement components (12). A conveying transmission gear (21) is provided below the conveying roller (2). A conveying motor (24) is provided at the end of the displacement seat (123). A conveying power gear (22) is provided on the output end of the conveying motor (24) and connected to the conveying transmission gear (21) via a transmission belt (23). The positioning seats (4) are respectively disposed on the displacement seats (123) in another set of displacement components (12); Two outer supports (31) are symmetrically arranged on the body (1). The steering cylinder (3) is rotatably arranged between the two outer supports (31). Steering rings (32) are rotatably arranged at both ends of the steering cylinder (3) and inside the two outer supports (31). Several connecting rods (331) are arranged in a ring array on the outer side of the steering rings (32). Steering power wheels (33) are fixedly arranged on the outer side of the several connecting rods (331). Several clamping cylinders (332) are arranged in a ring array between the steering power wheels (33) and the steering rings (32). The protruding end of the clamping cylinders (332) is inserted into the steering rings (32). Inside the body (1) and below the steering cylinder (3), there are symmetrical support frames (34). A steering power shaft (35) is rotatably arranged between the two support frames (34). Steering gears (36) are symmetrically arranged on the steering power shaft (35) and are respectively meshed with the steering power wheel (33). A steering motor (37) with its output end connected to the steering power shaft (35) is fixedly arranged on one side of one of the support frames (34). A bending motor (50) is provided inside the body (1) and below the bending rotary seat (5). The output end of the bending motor (50) is fixedly connected to the bending rotary seat (5), and the center line of the output end of the bending motor (50) coincides with the center line of the bending wheel (51). A bending slide rail (522) is symmetrically arranged above the bending rotary seat (5). A fixing cylinder (521) is fixedly arranged on the bending rotary seat (5) and between the two bending slide rails (522). The bending fixing block (52) is slidably arranged on the bending slide rail (522) and fixedly connected to the extended end of the fixing cylinder (521).

2. The tubing bending and shaping equipment for children's vehicle manufacturing according to claim 1, characterized in that, A guide block (41) is slidably provided on one side of the positioning seat (4), and a positioning slide post (401) is provided inside the positioning seat (4). A guide return spring (402) is symmetrically sleeved on the positioning slide post (401). A slider (411) is fixedly provided on one side of the guide block (41). The slider (411) is slidably provided on the positioning slide post (401) inside the positioning seat (4) and is located between the two guide return springs (402).

3. The tubing bending and shaping equipment for children's vehicle manufacturing according to claim 1, characterized in that, The steering ring (32) is symmetrically provided with steering rails (321) on both sides, and the steering ring (32) is rotatably connected to the steering cylinder (3) through the steering rails (321).

4. The tubing bending and shaping equipment for children's vehicle manufacturing according to claim 1, characterized in that, A power block (1231) is provided below the displacement seat (123) and threadedly connected to the displacement screw (121). A limit block (1232) is symmetrically provided below the displacement seat (123) and slidably connected to the displacement slide rod (122).

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