Bending device for automobile part production

Abstract

The utility model discloses a bending device for automobile part production, and belongs to the technical field of automobile part production. Comprising a workbench, a positioning assembly and a bending assembly, the positioning assembly comprises a first fixed plate and a movable plate which are arranged at the top end of the workbench, a connecting shaft arranged between the first fixed plate and the movable plate, a plurality of positioning wheels which are detachably arranged on the connecting shaft in a sleeving manner and are different in size, and a first driving assembly for driving the movable plate to move towards the top end of the workbench; the bending assembly comprises two second fixing plates arranged at the top end of the workbench, a U-shaped frame rotationally arranged between the two second fixing plates, a first hydraulic rod arranged on the U-shaped frame, a bending wheel arranged at the telescopic end of the first hydraulic rod and a motor arranged on the second fixing plates. According to the pipe bending device, the most adaptive positioning wheel can be selected according to the to-be-bent radian of a pipe, so that the bending radian of the pipe can be adjusted, and the use flexibility of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts production, especially to a bending device for automobile parts production. BACKGROUND

[0002] Automobile parts are units that make up the whole car and products that serve the car. During the production of automobile parts, bending processing is often required, such as automobile seat inner plate (the required shape is formed through bending processing), U-shaped or L-shaped connecting piece (bending is used to adapt to different assembly requirements), and pipe-shaped parts (such as the pipe in the automobile exhaust system, which needs to be bent to a specific angle and shape to adapt to the spatial layout of the vehicle).

[0003] In the patent with application number CN202420101273.4, a bending device based on automobile parts processing is disclosed, which includes a rack, a moving groove is horizontally formed on the top wall of the rack, the moving groove is used to place the pipe to be processed, a clamping assembly is slidingly connected in the moving groove and is used to clamp and fix the pipe, a bending mechanism is provided with a guide assembly fixedly connected to one side of the rack and corresponding to the moving groove, and a pipe pressing assembly is rotatably connected to the guide assembly. In this patent, the bending assembly can rotate outside the guide assembly (guide block), so that when the bent part of the pipe is moved out of the moving groove, the pipe can be pressed and bent towards the guide block using the bending assembly, and the bent part of the pipe forms a bending angle along the outer wall of the guide block. This device can bend pipes of different lengths through the setting of the guide block and the bending assembly, and can also adjust the bending angle of the pipe, thereby increasing the use scenarios of the device.

[0004] However, in actual bending processing, the guide assembly that determines the bending radius of the pipe is fixedly arranged on the rack, and the size of the guide assembly is fixed, so it is difficult to install guide assemblies of other sizes by disassembly, which leads to a certain bending radius of the pipe and certain limitations in actual implementation. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a bending device for automobile parts production to adjust the bending radius of the pipe.

[0006] The utility model aims to achieve the following technical solutions:

[0007] The utility model provides a kind of bending device for automobile parts production, including workbench, and positioning assembly and bending assembly being arranged on the workbench;The positioning assembly includes the first fixed plate and moving plate being arranged at the top of the workbench, the connecting shaft being arranged between the first fixed plate and moving plate, the multiple different sizes positioning wheels being detachably set on the connecting shaft, and the first drive assembly for driving the moving plate moves towards or away from the first fixed plate at the top of workbench;

[0008] The bending assembly includes two second fixed plates arranged at the top of the workbench, a U-shaped frame rotatably arranged between the two second fixed plates, a first hydraulic rod arranged on the U-shaped frame, a bending wheel arranged at the telescopic end of the first hydraulic rod, and a motor arranged on the second fixed plate.

[0009] Preferably, the two ends of the bending wheel are provided with a central shaft, the two ends of the central shaft are rotatably provided with a first sliding block, and the inner wall of the U-shaped frame is provided with a vertical sliding groove in sliding cooperation with the first sliding block.

[0010] Preferably, each positioning wheel is provided with a second sliding block, and the connecting shaft is provided with a first horizontal sliding groove in sliding cooperation with the second sliding block; the side of the moving plate close to the first fixed plate is provided with a limiting rod capable of contacting the positioning wheel.

[0011] Preferably, the first drive assembly includes a second hydraulic rod arranged at the top of the workbench, a third sliding block arranged at the bottom end of the moving plate, and a second horizontal sliding groove arranged at the top of the workbench and in sliding cooperation with the third sliding block; the telescopic end of the second hydraulic rod is fixedly connected with the moving plate.

[0012] Preferably, the side of the moving plate close to the first fixed plate is provided with a slot matched with the end of the connecting shaft.

[0013] Preferably, the top of the workbench is further provided with a U-shaped plate, the top of the U-shaped plate is provided with a third hydraulic rod, the telescopic end of the third hydraulic rod is provided with a first arc-shaped clamp, the top of the workbench is provided with a fourth hydraulic rod, and the telescopic end of the fourth hydraulic rod is provided with a second arc-shaped clamp matched with the first arc-shaped clamp.

[0014] Preferably, the inner walls of the first arc-shaped clamp and the second arc-shaped clamp are both provided with a rubber layer.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] By setting the first fixed plate, the moving plate at the top end of the workbench, setting the connecting shaft between the first fixed plate and the moving plate, detachably sleeving a plurality of different sizes of positioning wheels on the connecting shaft, and setting the first driving assembly for driving the moving plate to move towards or away from the first fixed plate at the top end of the workbench, when it is necessary to replace the positioning wheels of different sizes, the first driving assembly can be started to move the moving plate away from the first fixed plate, so that the connecting shaft and the moving plate can be separated, and then the positioning wheel to be replaced can be sleeved on the connecting shaft from the free end of the connecting shaft.

[0017] Through the synergistic effect of the above-mentioned devices, different sizes of positioning wheels can be sleeved on the connecting shaft, and then the most suitable positioning wheel can be selected according to the bending radius of the pipe, and then the bending radius of the pipe can be adjusted, and the use flexibility of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of the top direction of example 1;

[0019] Figure 2 It is a structure schematic view of the top direction of example 1; Figure 1 It is a structure schematic view of the top direction of example 1;

[0020] Figure 3 It is a structure schematic view of the top direction of example 1; Figure 1 It is a structure schematic view of the top direction of example 1;

[0021] Figure 4 It is a structure schematic view of the top direction of example 1; Figure 1 It is a structure schematic view of the top direction of example 1;

[0022] Figure 5 It is a structure schematic view of the top direction of example 1; Figure 1 It is a structure schematic view of the top direction of example 1;

[0023] In the figure: 1-workbench, 2-first fixed plate, 3-moving plate, 4-connecting shaft, 5-positioning wheel, 6-second fixed plate, 7-U-shaped frame, 8-first hydraulic rod, 9-bending wheel, 10-motor, 11-center shaft, 12-first sliding block, 14-second sliding block, 15-first horizontal sliding slot, 16-limiting rod, 17-second hydraulic rod, 19-second horizontal sliding slot, 21-U-shaped plate, 22-third hydraulic rod, 23-first arc-shaped clamp, 24-fourth hydraulic rod, 25-second arc-shaped clamp, 30-pipe. DETAILED DESCRIPTION

[0024] Example 1

[0025] A bending device for automobile parts production, as shown in Figures 1-4 , comprising a workbench 1, and a positioning assembly and a bending assembly arranged on the workbench 1; as Figures 1-4As shown, the positioning assembly includes a first fixed plate 2 and a movable plate 3 disposed at the top of the worktable 1, a connecting shaft 4 disposed between the first fixed plate 2 and the movable plate 3 (the connecting shaft 4 is fixedly connected to the first fixed plate 2, and detachably connected to the movable plate 3), and multiple positioning wheels 5 of different sizes detachably sleeved on the connecting shaft 4 (e.g., ...). Figure 4 As shown, the positioning wheel 5 is a cylinder (positioning wheels 5 of different sizes only differ in their outer diameter, and the distance between their two end faces is the same), and a first drive assembly that drives the moving plate 3 to move toward or away from the first fixed plate 2 at the top of the worktable 1; furthermore, as Figures 1-3 As shown, the first drive assembly includes a second hydraulic rod 17 disposed at the top of the worktable 1, a third slider (existing technology, not shown in the figure) disposed at the bottom of the movable plate 3, and a second horizontal slide groove 19 disposed at the top of the worktable 1 and slidingly engaged with the third slider; the telescopic end of the second hydraulic rod 17 is fixedly connected to the movable plate 3 through a connecting plate.

[0026] like Figures 1-3 As shown, the bending assembly includes two second fixing plates 6 disposed at the top of the workbench 1 (e.g., Figures 1-3 As shown, the first fixed plate 2 and the movable plate 3 are both disposed between the two second fixed plates 6, the U-shaped frame 7 is rotatably disposed between the two second fixed plates 6 (the U-shaped frame 7 and the second fixed plate 6 are connected by a rotating shaft, and the rotating shaft and the connecting shaft 4 are coaxially disposed), the first hydraulic rod 8 is disposed on the U-shaped frame 7, the bending wheel 9 is disposed at the telescopic end of the first hydraulic rod 8, and the motor 10 is disposed on the second fixed plate 6 (the motor 10 is fixedly connected to one of the rotating shafts).

[0027] Furthermore, such as Figures 1-4 As shown, each of the positioning wheels 5 is provided with a second slider 14, and the connecting shaft 4 is provided with a first horizontal groove 15 that slides and engages with the second slider 14; the moving plate 3 is provided with a limiting rod 16 that can contact the positioning wheel 5 on the side near the first fixed plate 2.

[0028] Furthermore, the movable plate 3 is provided with a slot (existing technology, not shown in the figure) on the side near the first fixed plate 2 that is adapted to the end of the connecting shaft 4.

[0029] Working principle: first, the positioning wheel 5 matched with the bending radius of the pipe 30 is sleeved on the connecting shaft 4 near one end of the moving plate 3, specifically, the second sliding block 14 is aligned with the first horizontal sliding groove 15, then the second hydraulic rod 17 is started, the third sliding block is slid in the second horizontal sliding groove 19, and then the moving plate 3 is moved towards the first fixed plate 2, when the second sliding block 14 slides to the end of the first horizontal sliding groove 15, the limiting rod 16 just contacts with the positioning, the end of the connecting shaft 4 away from the first fixed plate 2 just inserts into the slot and contacts with the side of the slot away from the first fixed plate 2, so that the positioning wheel 5 is limited on the connecting shaft 4, and the connecting shaft 4 is limited between the first fixed plate 2 and the moving plate 3. Then the pipe 30 to be bent is placed horizontally on the top end of the positioning wheel 5, at this time the pipe 30 can be placed stably on the top end of the positioning wheel 5 by artificial control, then the first hydraulic rod 8 is started, the first hydraulic rod 8 drives the press bending wheel 9 (cylinder) to move down until the press bending wheel 9 contacts with the top surface of the pipe 30, then the motor 10 is started, under the action of the motor 10, the U-shaped frame 7, the first hydraulic rod 8 and the press bending wheel 9 rotate synchronously to realize the purpose of bending the pipe 30.

[0030] When the bending radius of the pipe 30 needs to be adjusted subsequently, the second hydraulic rod 17 is retracted to the initial position, then the positioning wheel 5 is removed and replaced with a positioning wheel 5 of appropriate size, which can be installed and bent according to the above method.

[0031] Through the cooperation of the above devices, different sizes of positioning wheels 5 can be sleeved on the connecting shaft 4, and then the most suitable positioning wheel 5 can be selected according to the bending radius of the pipe 30, and the bending radius of the pipe 30 can be adjusted, thereby improving the flexibility of the device.

[0032] Example 2

[0033] In example 1, the worker needs to manually control the unbent end of the pipe 30 during the bending process to avoid lifting during the bending process, which increases the workload. Based on this, on the basis of example 1, as shown in Figures 1-3 and Figure 5 the top end of the workbench 1 is also provided with a U-shaped plate 21, the top end of the U-shaped plate 21 is provided with a third hydraulic rod 22, the telescopic end of the third hydraulic rod 22 is provided with a first arc-shaped clamp 23, the top end of the workbench 1 is provided with a fourth hydraulic rod 24, the telescopic end of the fourth hydraulic rod 24 is provided with a second arc-shaped clamp 25 matched with the first arc-shaped clamp 23. In specific implementation, after the pipe 30 is placed horizontally on the top end of the positioning wheel 5, the third hydraulic rod 22 and the fourth hydraulic rod 24 are started to move the first arc-shaped clamp 23 and the second arc-shaped clamp 25 towards each other until they contact with the pipe 30, so that the pipe 30 can be clamped and limited.

[0034] Further, asFigures 1-3 As shown, the two ends of the bending wheel 9 are provided with a central shaft 11, the two ends of the central shaft 11 are rotatably provided with a first sliding block 12, and the inner wall of the U-shaped frame 7 is provided with a vertical sliding groove (prior art, not shown in the figure) which is in sliding cooperation with the first sliding block 12. By setting the first sliding block 12 and the vertical sliding groove, the movement path of the bending wheel 9 can be limited, and it is ensured that it always moves along the extension direction of the first hydraulic rod 8 (i.e. the length direction of the vertical sliding groove).

[0035] Further, the inner walls of the first arc-shaped clamps 23 and the second arc-shaped clamps 25 are both provided with a rubber layer (prior art, not shown in the figure). The wear phenomenon caused by the first arc-shaped clamps 23 and the second arc-shaped clamps 25 to the outer wall of the pipe 30 can be effectively reduced.

Claims

1. A bending device for automobile parts production, comprising a workbench (1), a positioning assembly and a bending assembly arranged on the workbench (1); characterized in that, The positioning assembly comprises a first fixed plate (2) and a moving plate (3) arranged at the top end of the workbench (1), a connecting shaft (4) arranged between the first fixed plate (2) and the moving plate (3), a plurality of positioning wheels (5) of different sizes which are detachably sleeved on the connecting shaft (4), and a first driving assembly for driving the moving plate (3) to move towards or away from the first fixed plate (2) at the top end of the workbench (1). The bending assembly comprises two second fixed plates (6) arranged at the top end of the workbench (1), a U-shaped frame (7) rotatably arranged between the two second fixed plates (6), a first hydraulic rod (8) arranged on the U-shaped frame (7), a bending wheel (9) arranged at the telescopic end of the first hydraulic rod (8), and a motor (10) arranged on the second fixed plate (6).

2. The bending device for automobile parts production according to claim 1, characterized in that, The bending wheel (9) is provided with a central shaft (11) at both ends, the central shaft (11) is rotatably provided with a first sliding block (12) at both ends, and the inner wall of the U-shaped frame (7) is provided with a vertical sliding groove in sliding fit with the first sliding block (12).

3. The bending device for automobile parts production according to claim 1, characterized in that, Each of the positioning wheels (5) is provided with a second sliding block (14), and the connecting shaft (4) is provided with a first horizontal sliding groove (15) in sliding fit with the second sliding block (14); the side of the moving plate (3) close to the first fixed plate (2) is provided with a limiting rod (16) capable of contacting the positioning wheel (5).

4. The bending device for automobile parts production according to claim 3, characterized in that, The first driving assembly comprises a second hydraulic rod (17) arranged at the top end of the workbench (1), a third sliding block arranged at the bottom end of the moving plate (3), and a second horizontal sliding groove (19) arranged at the top end of the workbench (1) and in sliding fit with the third sliding block; the telescopic end of the second hydraulic rod (17) is fixedly connected with the moving plate (3).

5. The bending device for automobile parts production according to claim 4, characterized in that, The side of the moving plate (3) close to the first fixed plate (2) is provided with a slot matched with the end of the connecting shaft (4).

6. The bending device for automobile parts production according to claim 1, characterized in that, The top end of the workbench (1) is further provided with a U-shaped plate (21), the top end of the U-shaped plate (21) is provided with a third hydraulic rod (22), the telescopic end of the third hydraulic rod (22) is provided with a first arc-shaped clamp (23), the top end of the workbench (1) is provided with a fourth hydraulic rod (24), and the telescopic end of the fourth hydraulic rod (24) is provided with a second arc-shaped clamp (25) matched with the first arc-shaped clamp (23).

7. The bending device for automobile parts production according to claim 6, characterized in that, The inner walls of the first arc-shaped clamp (23) and the second arc-shaped clamp (25) are both provided with a rubber layer.

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