Backrest grid wire rod corner forming mechanism

Abstract

The utility model relates to a backrest grid wire rod corner forming mechanism which comprises a mounting plate, a limiting piece fixedly connected with the mounting plate, a rotating wheel rotationally connected to the limiting piece and a pressing wheel fixedly connected to the end of the rotating wheel and used for corner forming. A driving assembly used for driving the rotating wheel to rotate is arranged on the mounting plate, the rotating wheel is driven by the driving assembly to rotate, the rotating wheel drives the pressing wheel to rotate, the pressing wheel extrudes the end of the backrest grid wire rod, the end of the backrest grid wire rod is bent around the limiting piece, automatic corner forming of the backrest grid wire rod is achieved, and the machining efficiency is effectively improved. And the angle punching accuracy of the backrest grid wire is high, and the overall quality and consistency of a seat are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessory processing equipment, and specifically relates to a backrest grid wire rod angle mechanism. BACKGROUND

[0002] With the continuous progress of the automobile industry, as a key component that affects the driving experience, the quality and performance of automobile seats are continuously improving. The seat backrest grid, as an important part of the seat, is usually installed in the form of a steel wire grid on the bracket of the seat backrest side plate, and plays an important role in supporting and comfort of the seat.

[0003] In the production process of automobile seats, the angle of the backrest grid wire rod is a key process. The traditional manual angle or simple tool angle method is low in efficiency and difficult to ensure accuracy, and cannot meet the requirements of large-scale automated production. Moreover, manual operation is easily affected by the skill level and working state of workers, resulting in unstable angle quality and affecting the overall quality and consistency of the seat. SUMMARY

[0004] The utility model aims at designing a backrest grid wire rod angle mechanism to solve the technical problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a backrest grid wire rod angle mechanism, comprising a mounting plate, a limiting piece fixedly connected with the mounting plate, a rotating wheel rotatably connected to the limiting piece, and a pressing wheel fixedly connected to the end of the rotating wheel and used for angle, the limiting piece is provided with a positioning groove for the backrest grid wire rod to pass through, and the mounting plate is provided with a driving assembly for driving the rotating wheel to rotate.

[0006] Further, the driving assembly is a belt transmission structure, and the rotating wheel is a synchronous belt pulley.

[0007] Further, the mounting plate is detachably connected with a protective cover, and the conveyor belt in the belt transmission structure is located inside the protective cover.

[0008] Further, the mounting plate is fixedly connected with an internal thread column, the end of the internal thread column is in close contact with the inner wall of the protective cover, and the bolt is threadedly connected with the internal thread column through the protective cover.

[0009] Further, it further comprises a three-axis moving assembly, and the mounting plate is fixedly connected to the output end of the three-axis moving assembly.

[0010] Further, the three-axis moving assembly comprises a moving plate in sliding connection with the mounting table, the three-axis moving assembly comprises a y-axis moving module, an x-axis moving module and a z-axis moving module connected in sequence, the y-axis moving module comprises a rack fixed to the mounting table, a first motor fixed to the bottom of the moving plate and a gear fixed to the output end of the first motor and in meshing connection with the rack, the x-axis moving module and the z-axis moving module are installed on the top of the moving plate.

[0011] Further, the x-axis moving module and the z-axis moving module adopt a screw nut mechanism.

[0012] Further, the output plate of the three-axis moving assembly is provided with a rotating shaft, one end of the rotating shaft is fixed to the mounting plate, and the other end of the rotating shaft is connected with the output end of a second motor installed on the output plate.

[0013] Further, the output plate is fixed with a connecting barrel, the second motor is fixed to the end of the connecting barrel, and the connecting barrel is provided with a first through hole through which the rotating shaft passes.

[0014] Further, it further comprises a pneumatic finger fixed to the side of the mounting plate away from the rotating wheel, and the output end of the pneumatic finger is provided with a clamping rod for clamping the backrest grid wire.

[0015] Further, the end of the clamping rod is provided with a clamping piece, the clamping piece comprises an upper clamping block and a lower clamping block, the lower clamping block is provided with a groove, and the upper clamping block is provided with a protrusion, and the backrest grid wire is located between the groove and the protrusion.

[0016] Further, the groove is a V-shaped groove.

[0017] Further, the protrusion is provided with a flat surface near one end of the backrest grid wire.

[0018] Further, the limiting piece comprises a limiting shaft fixed to the mounting plate and two limiting blocks detachably connected to the limiting shaft, and the two limiting blocks are arranged in a spaced manner to form the positioning groove.

[0019] Further, the limiting block is provided with a second through hole, the limiting shaft is provided with a threaded hole aligned with the second through hole, and a bolt is threadedly connected through the second through hole and the threaded hole.

[0020] Compared with the prior art, the utility model discloses the limiting piece is equipped with the positioning slot that the backrest grid line material passes through on it, rotates through the drive assembly drive rotating wheel, and rotating wheel drives the pressure wheel to rotate, and the end of backrest grid line material is extruded to the pressure wheel, and the end of backrest grid line material is bent around the limiting piece, realizes the automatic angle of backrest grid line material, effectively improves the processing efficiency, and the backrest grid line material angle does not need to be manually angled, and the precision of the angle of the application automatic angle mode can effectively improve, and it is favorable to the overall quality and consistency of seat. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the whole structure schematic diagram of the utility model;

[0022] Figure 2 It is the local enlarged structure schematic diagram of the utility model;

[0023] Figure 3 It is the structure schematic diagram of backrest grid line material before angle;

[0024] Figure 4 It is the structure schematic diagram of backrest grid line material after angle;

[0025] The names of the components marked in the drawing are as follows: 1, mounting plate;2, rotating wheel;3, limiting piece;31, limiting shaft;32, limiting block;4, pressure wheel;5, positioning slot;6, drive assembly;7, protective cover;8, threaded column;9, three-axis movement assembly;91, y-axis movement module;91a, first motor;91b, gear;92, x-axis movement module;93, z-axis movement module;10, moving plate;11, output plate;12, rotating shaft;13, second motor;14, connecting barrel;15, pneumatic finger;16, clamping rod;17, clamping piece;17a, upper clamping block;17b, lower clamping block;18, recess;19, protrusion;20, plane;21, backrest grid line material before angle;22, backrest grid line material after angle. DETAILED DESCRIPTION

[0026] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0027] Embodiment: please refer to Figures 1-4The backrest grid wire angle punching mechanism comprises a mounting plate 1, a limiting piece 3 fixedly connected with the mounting plate 1, a rotating wheel 2 rotatably connected to the limiting piece 3, and a pressing wheel 4 fixedly connected to the end of the rotating wheel 2 and used for punching the angle, the limiting piece 3 is provided with a positioning groove 5 through which the backrest grid wire passes, and the mounting plate 1 is provided with a driving assembly 6 used for driving the rotating wheel 2 to rotate. The part of the backrest grid wire that needs to be punched passes through the positioning groove 5, the rotating wheel 2 is driven to rotate by the driving assembly 6, the rotating wheel 2 drives the pressing wheel 4 to rotate, so that the pressing wheel 4 extrudes the part of the backrest grid wire that needs to be punched, and the part of the backrest grid wire that needs to be punched is bent around the limiting piece 3, so that the automatic punching of the backrest grid wire is realized, and the processing efficiency is effectively improved. The bending degree of the backrest grid wire punching is always consistent with the limiting angle in the limiting piece 3, so that the punching quality is kept stable, and the overall quality and consistency of the seat are improved.

[0028] Preferably, the driving assembly 6 is a belt transmission structure, the transmission process is stable, and the noise is low; the rotating wheel 2 is a synchronous belt wheel, which ensures the accuracy of transmission.

[0029] Preferably, the mounting plate 1 is detachably connected with a protective cover 7, and a conveying belt (not shown in the figure) in the belt transmission structure is located inside the protective cover 7, so that the protective cover 7 plays a protective role on the conveying belt.

[0030] Preferably, an internally threaded column 8 is fixedly connected to the mounting plate 1, the end of the internally threaded column 8 is in close contact with the inner wall of the protective cover 7, a bolt is threadedly connected with the internally threaded column 8 through the protective cover 7, the detachability of the protective cover 7 is realized, and the protective cover 7 can be quickly disassembled, so that the conveying belt can be maintained.

[0031] In an optional embodiment, the backrest grid wire angle punching mechanism further comprises a three-axis moving assembly 9, the mounting plate 1 is fixedly connected to the output end of the three-axis moving assembly 9, in the initial state, the back grid wire is located outside the limiting piece 3, and when the back grid wire is blanked and punched, the limiting piece 3 is driven by the three-axis moving assembly 9 to move along three directions in sequence, so that the end of the back grid wire that needs to be punched passes through the positioning groove 5 on the limiting piece 3, thereby facilitating the subsequent punching.

[0032] Preferably, the backrest grid wire cornering mechanism further comprises a moving plate 10 in sliding connection with a mounting table (not shown in the figure), the three-axis moving assembly 9 comprises a y-axis moving module 91, an x-axis moving module 92 and a z-axis moving module 93 connected in sequence, the y-axis moving module 91 comprises a rack (not shown in the figure) fixed to the mounting table, a first motor 91a fixed to the bottom of the moving plate 10, and a gear 91b fixed to the output end of the first motor 91a and in meshing connection with the rack, the rack and the gear 91b are helical, which can improve the load capacity of the two; the x-axis moving module 92 and the z-axis moving module 93 are installed on the top of the moving plate 10. The z-axis moving module 93 is used to adjust the height of the limiting piece 3, so that the positioning groove 5 on the limiting piece 3 is at the same horizontal height as the backrest grid wire; the y-axis moving module 91 is used to drive the limiting piece 3 to move along the y-axis direction; the x-axis moving module 92 is used to drive the limiting piece 3 to move along the x-axis direction; it is worth noting that in the present embodiment, after the backrest grid wire is initially discharged and the z-axis moving module 93 is adjusted, the limiting piece 3 is first moved along the y-axis direction, and then moved along the x-axis direction, at this time the part of the backrest grid wire that needs to be cornered passes through the positioning groove 5, and then subsequent cornering is performed. After the cornering is completed and the pressure roller 4 is returned to the home position, the limiting piece 3 is first moved along the x-axis direction, and then moved along the y-axis direction, so that the backrest grid wire is located outside the positioning groove 5, facilitating discharging; when the backrest grid wire is subsequently cornered, it is usually not necessary to re-adjust the height of the limiting piece 3.

[0033] Preferably, the x-axis moving module 92 and the z-axis moving module 93 adopt a lead screw nut mechanism, which has high transmission accuracy.

[0034] Preferably, the output plate 11 of the three-axis moving assembly 9 is provided with a rotating shaft 12, one end of the rotating shaft 12 is fixed to the mounting plate 1, and the other end of the rotating shaft 12 is connected to the output end of a second motor 13 mounted on the output plate 11. The rotating shaft 12 is driven to rotate by the second motor 13, so that the mounting plate 1 is inclined at a suitable angle, thereby adjusting the limiting piece 3; different inclination angles of the mounting plate 1 result in different directions of the backrest grid wire cornering; the above adjustment process can meet more demands.

[0035] Preferably, the output plate 11 is fixed with a connecting cylinder 14, the second motor 13 is fixed to the end of the connecting cylinder 14, and the connecting cylinder 14 is provided with a first through hole for the rotating shaft 12 to pass through. The connecting cylinder 14 is used to mount the second motor 13, and the rotating shaft 12 rotates inside the connecting cylinder 14, which protects the rotating shaft 12.

[0036] In an optional embodiment, the backrest grid wire cornering mechanism further comprises a pneumatic finger 15 fixed to the side of the mounting plate 1 away from the rotating wheel 2, and the output end of the pneumatic finger 15 is provided with a clamping rod 16 for clamping the backrest grid wire, which is used to fix the backrest grid wire during cornering.

[0037] Preferably, the end of the clamping rod 16 is provided with a clamping piece 17, the clamping piece 17 comprises an upper clamping block 17a and a lower clamping block 17b, the lower clamping block 17b is provided with a groove 18, the upper clamping block 17a is provided with a protrusion 19, the backrest grid wire is located between the groove 18 and the protrusion 19, the groove 18 and the protrusion 19 can clamp the backrest grid wire more stably, which is conducive to improving the accuracy of the angle.

[0038] Preferably, the groove 18 is a V-shaped groove 18, which can adapt to more backrest grid wires with different diameters, while ensuring that the backrest grid wire is clamped more stably.

[0039] Preferably, the protrusion 19 is provided with a flat surface 20 near one end of the backrest grid wire, the flat surface 20 can increase the contact area between the protrusion 19 and the backrest grid wire, and further improve the stability of clamping the backrest grid wire.

[0040] In an optional embodiment, the limiting piece 3 comprises a limiting shaft 31 fixedly connected to the mounting plate 1 and two limiting blocks 32 detachably connected to the limiting shaft 31, the two limiting blocks 32 are spaced apart to form the positioning groove 5. The two limiting blocks 32 can be individually detached from the limiting shaft 31, facilitating replacement of the limiting blocks 32.

[0041] Further, the limiting block 32 is provided with a second through hole (not shown in the figure), and the limiting shaft 31 is provided with a threaded hole aligned with the second through hole, and a bolt is threadedly connected through the second through hole and the threaded hole, which is conducive to quickly detaching the limiting block 32.

[0042] The working principle of the embodiment is as follows: in use, the backrest grid wire is cut to size, according to the direction in which the backrest grid wire needs to be angled, the second motor 13 is adjusted to tilt the mounting plate 1 to a corresponding angle, the z-axis moving module 93 is adjusted to adjust the height of the limiting piece 3, so that the positioning groove 5 on the limiting piece 3 is at the same horizontal height as the backrest grid wire, then the y-axis moving module 91 drives the limiting piece 3 to move along the y-axis direction, and then the x-axis moving module 92 drives the limiting piece 3 to move along the x-axis direction, so that the backrest grid wire passes through the positioning groove 5; then the pneumatic finger 15 is started, the upper clamping block 17a and the lower clamping block 17b are driven by the pneumatic finger 15 to clamp the backrest grid wire, then the driving assembly 6 drives the rotating wheel 2 to rotate, the rotating wheel 2 drives the pressing wheel 4 to rotate, so that the pressing wheel 4 extrudes the part of the backrest grid wire that needs to be angled, and the angled part of the backrest grid wire is bent around the limiting piece 3, realizing automatic angling of the backrest grid wire and effectively improving the processing efficiency; the degree of bending of the backrest grid wire is always consistent with the limiting angle in the limiting piece 3, ensuring that the angling quality remains stable, which is conducive to the overall quality and consistency of the seat.

[0043] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content, or make equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change or modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the technical solution of the present application.

Claims

1. A backrest mesh wire angle punching mechanism, characterized in that: The utility model provides a backrest grid line material automatic pressing device, including installation board (1), with installation board (1) fixed limiting piece (3), rotating wheel (2) is connected on limiting piece (3) and is used for pressing the wheel (4) of pressing wheel (4) of end fixed to rotating wheel (2) and is used for pressing the angle, limiting piece (3) is equipped with the positioning slot (5) that backrest grid line material passes through on, installation board (1) is equipped with drive assembly (6) for driving rotating wheel (2) rotation.

2. The backrest grid wire cornering mechanism of claim 1, wherein: The drive assembly (6) is a belt drive structure, and the rotating wheel (2) is a synchronous belt pulley.

3. The backrest grid wire cornering mechanism of claim 2, wherein: The installation board (1) is detachably connected with a protective cover (7), and the transmission belt in the belt drive structure is located inside the protective cover (7).

4. The backrest grid wire cornering mechanism of claim 1, wherein: It also includes a three-axis moving assembly (9), and the installation board (1) is fixed to the output end of the three-axis moving assembly (9).

5. The backrest grid wire cornering mechanism of claim 4, wherein: It also includes a moving plate (10) slidingly connected with the mounting table, and the three-axis moving assembly (9) includes a y-axis moving module (91), an x-axis moving module (92), and a z-axis moving module (93) connected in sequence.

6. The backrest mesh wire cornering mechanism of claim 5, wherein: The output plate (11) of the three-axis moving assembly (9) is provided with a rotating shaft (12), one end of the rotating shaft (12) is fixed to the installation board (1), and the other end of the rotating shaft (12) is connected with the output end of a second motor (13) mounted on the output plate (11).

7. The backrest mesh wire cornering mechanism of claim 1, wherein: It also includes a pneumatic finger (15) fixed to the side of the installation board (1) away from the rotating wheel (2), and the output end of the pneumatic finger (15) is provided with a clamping rod (16) for clamping the backrest grid line material.

8. The backrest grid wire cornering mechanism of claim 7, wherein: The end of the clamping rod (16) is provided with a clamping piece (17), and the clamping piece (17) includes an upper clamping block (17a) and a lower clamping block (17b).

9. The backrest mesh wire cornering mechanism of claim 1, wherein: The limiting piece (3) includes a limiting shaft (31) fixed to the installation board (1) and two limiting blocks (32) detachably connected to the limiting shaft (31), and the two limiting blocks (32) are spaced apart to form the positioning slot (5).

10. The backrest grid wire cornering mechanism of claim 9, wherein: Second through holes are formed in the two limiting blocks (32), and a threaded hole aligned with the second through holes is formed in the limiting shaft (31), and a bolt is threadedly connected through the second through holes and the threaded hole.

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