A metal plate bending device

Abstract

The application relates to the technical field of metal plate processing, and provides a metal plate bending device, which comprises a machine body, a feeding port is formed in the machine body, a mounting portion is slidably arranged on the machine body along the length direction of the feeding port, the mounting portion is located outside the feeding end of the feeding port, a driving assembly is arranged on the mounting portion, and the driving assembly is used for driving the mounting portion to move on the machine body; a connecting portion is rotationally arranged at the bottom of the mounting portion, a pickup portion is arranged at the bottom of the connecting portion, the top of the connecting portion is in transmission connection with the driving assembly, a limiting assembly is arranged on the mounting portion, and the limiting assembly is used for limiting the deflection angle of the connecting portion; and the pickup portion is slidably arranged on the connecting portion in the vertical direction. The application can reduce the labor intensity of workers and improve the processing precision of sheet metal materials.

Description

Technical Field

[0001] This invention relates to the field of metal sheet processing technology, and more specifically, to a metal sheet bending device. Background Technology

[0002] The content in this section only provides background information related to this invention and may not constitute prior art.

[0003] Flexible bending centers are high-end automated equipment in the sheet metal processing field. They are mainly used for multi-sided and multi-angle bending of metal sheets. Their core feature is that they do not require traditional molds and can complete complex shape bending, such as right angles, arcs, and pressed edges, through program control. They can effectively cope with the current trend of multi-variety, small-batch, and customized production in the manufacturing industry and solve the pain points of traditional bending processing, such as reliance on skilled workers, low efficiency, poor consistency, and high mold costs.

[0004] Traditional flexible bending centers mainly consist of a loading table, a tool holder system, and an unloading table. The loading table is mainly responsible for receiving and initially positioning the sheet metal. The tool holder system is the core bending execution mechanism, which typically includes an upper pressure tool, a lower pressure tool, and a flipping tool. The flipping tool can rotate ±90° under the action of the drive device to achieve forward and reverse bending. After the sheet metal material is bent, it is sent out of the working area through the unloading table.

[0005] However, the aforementioned technologies have the following drawbacks. In actual use, workers need to manually load the sheet metal to be processed, placing it in a predetermined position. Then, the feeding device moves the sheet metal to the tool holder system for forward or reverse bending. During this process, manual loading not only increases the labor intensity of the workers, but also, under prolonged high-intensity work, can lead to deviations in the processing position of the sheet metal, thus affecting the processing accuracy of the sheet metal. Summary of the Invention

[0006] In order to solve the above-mentioned technical problems, the purpose of this invention is to provide a metal sheet bending device that can reduce the labor intensity of workers and improve the processing accuracy of sheet metal materials.

[0007] The objective of this invention is achieved through the following technical solution:

[0008] A metal sheet bending device includes a body with a feed inlet. A mounting portion is slidably disposed on the body along the length of the feed inlet, located outside the feed end of the feed inlet. A driving assembly is disposed on the mounting portion to move the mounting portion on the body. A connecting portion is rotatably disposed at the bottom of the mounting portion, and a picking portion is disposed at the bottom of the connecting portion. The top of the connecting portion is connected to the driving assembly. A limiting component is disposed on the mounting portion to limit the deflection angle of the connecting portion. The picking portion is slidably disposed on the connecting portion in a vertical direction.

[0009] In some possible embodiments, a groove is formed on the machine body along the length of the feed inlet, a slider is slidably disposed in the groove, the mounting part is disposed at the bottom of the slider, and the driving assembly is used to drive the slider to move within the groove; the driving assembly includes a driving rod and a driving component, the driving rod is rotatably disposed within the groove along the length of the groove, a threaded groove is formed on the driving rod along the length of the driving rod, the slider is slidably sleeved on the driving rod, a receiving groove is formed in the slider, a driving sleeve is rotatably disposed in the receiving groove, the driving sleeve is threadedly sleeved on the driving rod, the driving component is disposed on the mounting part, and the upper output shaft of the driving component is connected to the driving sleeve in a transmission manner.

[0010] In some possible embodiments, a rotating plate is rotatably mounted at the bottom of the mounting part, and the rotating plate is connected to the bottom output shaft of the driving member. A mounting shaft is fixedly mounted at the top of the connecting part, and a driving disk is coaxially fixedly mounted on the mounting shaft. A connecting rod is fixedly mounted on the rotating plate in the horizontal direction, and a driving column is fixedly mounted on the connecting rod. A driving groove is opened on the driving disk for the driving column to slide into. The driving groove is opened radially along the mounting shaft, and the end of the driving groove away from the mounting shaft is open. Multiple driving grooves are opened, and the multiple driving grooves are evenly arranged along the axial direction of the mounting shaft. An arc-shaped groove is opened on the driving disk, and the arc-shaped groove is adapted to the rotating plate. Multiple arc-shaped grooves are also opened, and the multiple arc-shaped grooves are evenly arranged along the axial direction of the mounting shaft.

[0011] In some possible embodiments, the limiting assembly includes a limiting rod and a limiting block. A limiting groove is formed at the bottom of the mounting part. The top end of the mounting shaft is rotatably disposed in the limiting groove. The limiting block is disposed in the limiting groove. Multiple limiting blocks are disposed in the limiting groove along the axial direction of the mounting shaft. A mounting block is fixedly disposed on the top of the drive disk. The limiting rod is slidably disposed on the mounting block. The top end of the limiting rod is inserted into the limiting groove. A slot for the limiting rod to be inserted is formed between two adjacent limiting blocks. The number of slots is adapted to the number of drive grooves. An elastic element is disposed on the mounting block. The elastic element is used to drive the limiting rod to move toward the limiting groove.

[0012] In some possible embodiments, the side of the limiting block near the drive rod is configured as an inclined surface, the bottom of which is tangent to the bottom wall of the limiting groove, and the inclined surface extends upward at an angle toward the opening of the limiting groove.

[0013] In some possible embodiments, two mounting blocks are provided, and the two mounting blocks are symmetrically arranged along the axial direction of the mounting shaft. The top of each mounting block has a mounting groove in the vertical direction. The limiting rod is slidably disposed in the mounting groove. The elastic element is disposed in the mounting groove and is configured as a compression spring. One end of the elastic element is fixedly connected to the limiting rod, and the other end is fixedly connected to the inner wall of the mounting groove.

[0014] In some possible embodiments, the top of the limiting rod is provided with a groove, a rotating shaft is rotatably disposed in the groove, the rotating shaft is in rolling contact with the inclined surface, and the surface of the rotating shaft is covered with a sliding layer.

[0015] In some possible embodiments, a mounting base is provided on the top of the drive disk. There are two mounting bases, which are symmetrically arranged along the axis of the mounting shaft. The mounting bases are fixedly connected to the mounting blocks one-to-one.

[0016] In some possible embodiments, a placement groove is provided at the bottom of the connecting part in the vertical direction, a drive cylinder is fixedly disposed in the placement groove, and the pickup part is fixedly disposed at the output end of the drive cylinder.

[0017] In summary, the technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0018] 1. In actual use, the sheet metal material to be processed is first picked up by the pick-up unit, and then the installation unit is moved by the drive component, which in turn moves the sheet metal material, thus realizing the feeding of the sheet metal material. After the feeding is completed, the sheet metal material can be bent by the machine body. After the sheet metal material is bent, the sheet metal material is picked up again by the pick-up unit, and then the connecting part is rotated, which can drive the sheet metal material to rotate. At the same time, the deflection angle of the connecting part is limited by the limiting component, thus simultaneously limiting the rotation angle of the sheet metal material. In the above process, no manual operation is required by the operator, which can effectively reduce the labor intensity of the operator, while ensuring the feeding accuracy of the sheet metal material, thereby improving the bending processing quality of the sheet metal material.

[0019] 2. During the movement of the sheet metal material, the drive sleeve is rotated by the drive component. As the drive sleeve rotates, the thread between the drive sleeve and the drive rod interlocks, causing the slider to move within the groove, which in turn moves the mounting part, thus achieving the purpose of moving the sheet metal material. At the same time, the output shaft at the bottom of the drive component can drive the rotating plate to rotate, which in turn drives the drive disc to rotate through the drive column on the connecting rod. The horizontal movement and planar rotation of the sheet metal material can be achieved with a single drive component, which can effectively simplify the output mechanical structure, reduce space occupation, reduce costs, and effectively improve the applicability of the device.

[0020] 3. As the rotating plate rotates, it drives the drive disc to rotate. The drive disc rotates, causing the limiting rod to rotate within the limiting groove. The top of the limiting rod contacts the inclined surface of the limiting block. As the limiting rod rotates, the top of the limiting rod moves downward under the action of the inclined surface of the limiting block, simultaneously squeezing the elastic element. With further rotation of the limiting rod, the top of the limiting rod disengages from the current limiting block and falls into the slot between two adjacent limiting blocks. At this time, the drive column disengages from the drive groove, and the connecting part stops rotating. The limiting rod is now located in the slot under the action of the elastic element. Due to the presence of the inclined surface, the limiting rod can move smoothly on the limiting block, and it also prevents the limiting rod from rotating within the limiting groove when no rotational driving torque is applied, effectively improving the practicality and reliability of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the driving component according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the drive disk structure according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the limiting component according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the limiting block according to an embodiment of the present invention;

[0026] Figure 6 This is a cross-sectional view of the mounting block according to an embodiment of the present invention;

[0027] Figure 7 This is a cross-sectional view of the connecting portion according to an embodiment of the present invention.

[0028] Icons: 1. Machine body; 11. Feed inlet; 12. Feeding component; 121. Feed rack; 122. Pick-up plate; 2. Mounting part; 3. Connecting part; 31. Pick-up part; 4. Drive assembly; 41. Drive rod; 42. Drive component; 43. Threaded groove; 5. Slide groove; 51. Slider; 52. Receiving groove; 521. Drive sleeve; 6. Rotating plate; 61. Mounting shaft; 62. Drive disc; 63. Connecting rod; 64. Drive column; 65. Drive groove; 66. Arc groove; 7. Limiting assembly; 71. Limiting rod; 72. Limiting block; 73. Limiting groove; 74. Mounting block; 75. Slot; 76. Elastic component; 77. Mounting groove; 78. Groove; 79. Rotating shaft; 710. Mounting base; 8. Placement groove; 81. Drive cylinder. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] The following is for reference Figures 1 to 7 The present invention will be described in further detail below.

[0031] Reference Figure 1 A metal sheet bending device includes a body 1 with a feed inlet 11 and a feeding component 12. The feeding component 12 includes a bent feeding rack 121 that moves horizontally and picks up and feeds metal sheet material through an electromagnetic pickup plate 122 at its end. As the feeding rack 121 moves, the metal sheet material is conveyed into the feed inlet 11 to achieve sheet metal bending.

[0032] Reference Figure 1 and Figure 2An installation part 2 is slidably provided on the machine body 1 along the length direction of the feed inlet 11. The installation part 2 is located outside the feed end of the feed inlet 11. A connecting part 3 is rotatably provided at the bottom of the installation part 2. A picking part 31 is provided at the bottom of the connecting part 3. The picking part 31 is slidably provided on the connecting part 3 in the vertical direction.

[0033] Reference Figure 2 and Figure 3 The mounting part 2 is equipped with a drive assembly 4. A slide groove 5 is provided on the machine body 1 along the length direction of the feed port 11. A slider 51 is slidably disposed in the slide groove 5. The mounting part 2 is located at the bottom of the slider 51. The drive assembly 4 is used to drive the slider 51 to move in the slide groove 5. The drive assembly 4 includes a drive rod 41 and a drive component 42. The drive rod 41 is rotatably disposed in the slide groove 5 along the length direction of the slide groove 5. A threaded groove 43 is provided on the drive rod 41 along the length direction of the drive rod 41. The slider 51 is slidably sleeved on the drive rod 41. A receiving groove 52 is provided in the slider 51. A drive sleeve 521 is rotatably disposed in the receiving groove 52. The drive sleeve 521 is threadedly sleeved on the drive rod 41. The drive component 42 is disposed on the mounting part 2. The upper output shaft of the drive component 42 is connected to the drive sleeve 521 for transmission.

[0034] In one embodiment of the present invention, the driving component 42 is configured as a motor, which is disposed in the receiving groove 52. The two ends of the driving sleeve 521 are rotatably connected to the inner wall of the receiving groove 52 through bearings. The driving motor drives the driving sleeve 521 through the built-in driving shaft structure, thereby causing the driving sleeve 521 to rotate. As the driving sleeve 521 rotates, the sliding block 51 can be moved in the sliding groove 5 through the interlocking thread structure between the driving sleeve 521 and the driving rod 41.

[0035] As one embodiment of the present invention, refer to Figure 2 and Figure 3 The slide 5 is formed as a T-shaped groove, and the slider 51 is set as a T-shaped block; as another possible embodiment of the present invention, the slide 5 can also be formed as a dovetail groove, and the slider 51 is set as a dovetail block.

[0036] During the movement of the sheet metal material, the drive sleeve 521 is rotated by the drive component 42. As the drive sleeve 521 rotates, the thread between the drive sleeve 521 and the drive rod 41 engages, causing the slider 51 to move within the slide groove 5, which in turn moves the mounting part 2, thus achieving the purpose of moving the sheet metal material. At the same time, the bottom output shaft of the drive component 42 can drive the rotating plate 6 to rotate, which in turn drives the drive disk 62 to rotate via the drive column 64 on the connecting rod 63. The horizontal movement and planar rotation of the sheet metal material can be achieved through a single drive component 42, which can effectively simplify the output mechanical structure, reduce space occupation, reduce costs, and effectively improve the applicability of the device.

[0037] Reference Figure 3 and Figure 4 A rotating plate 6 is rotatably mounted on the bottom of the mounting part 2. The rotating plate 6 is connected to the bottom output shaft of the driving component 42. A mounting shaft 61 is fixedly mounted on the top of the connecting part 3. The top of the mounting shaft 61 is rotatably connected to the bottom of the mounting part 2. A driving disk 62 is coaxially fixedly mounted on the mounting shaft 61. A connecting rod 63 is fixedly mounted on the rotating plate 6 in the horizontal direction. A driving column 64 is fixedly mounted on the connecting rod 63. A driving groove 65 is opened on the driving disk 62 for the driving column 64 to slide into. The driving groove 65 is opened radially along the mounting shaft 61. The end of the driving groove 65 away from the mounting shaft 61 is open. Multiple driving grooves 65 are opened and are evenly arranged along the axial direction of the mounting shaft 61. An arc-shaped groove 66 is opened on the driving disk 62. The arc-shaped groove 66 is adapted to the rotating plate 6. Multiple arc-shaped grooves 66 are also opened and are evenly arranged along the axial direction of the mounting shaft 61. (Refer to...) Figure 3 and Figure 4 The concave surface of the arc-shaped groove 66 is set towards the rotating plate 6, and the curvature of the arc-shaped groove 66 is adapted to the roundness of the rotating plate 6.

[0038] As one embodiment of the present invention, refer to Figure 3 and Figure 4 The drive slot 65 has 4 slots, and the arc-shaped slot 66 also has 4 slots.

[0039] A limiting component 7 is provided on the mounting part 2. The limiting component 7 is used to limit the deflection angle of the connecting part 3. As one embodiment of the present invention, see reference to Figure 4 and Figure 5 The limiting component 7 includes a limiting rod 71 and a limiting block 72. A limiting groove 73 is provided at the bottom of the mounting part 2. The top end of the mounting shaft 61 is rotatably disposed in the limiting groove 73. The limiting block 72 is disposed in the limiting groove 73. Multiple limiting blocks 72 are provided. Multiple limiting blocks 72 are disposed in the limiting groove 73 along the axial direction of the mounting shaft 61. A mounting block 74 is fixedly disposed on the top of the drive disk 62. The limiting rod 71 is slidably disposed on the mounting block 74. The top end of the limiting rod 71 is inserted into the limiting groove 73. A slot 75 for the limiting rod 71 to be inserted is formed between two adjacent limiting blocks 72. The number of slots 75 is adapted to the number of drive grooves 65. An elastic element 76 is provided on the mounting block 74. The elastic element 76 is used to drive the limiting rod 71 to move toward the direction closer to the limiting groove 73.

[0040] Reference Figure 5 The side of the limiting block 72 near the drive rod 41 is set as an inclined surface. The bottom of the inclined surface is tangent to the bottom wall of the limiting groove 73, and the inclined surface extends upward in the direction of the opening of the limiting groove 73.

[0041] Reference Figure 5and Figure 6 Two mounting blocks 74 are provided, symmetrically arranged along the axis of the mounting shaft 61. A mounting groove 77 is vertically formed on the top of each mounting block 74. A limiting rod 71 is slidably disposed within the mounting groove 77, and an elastic element 76 is disposed within the mounting groove 77. As one embodiment of the present invention, see [reference needed]. Figure 6 The elastic element 76 is configured as a compression spring, with one end of the elastic element 76 fixedly connected to the limiting rod 71 and the other end fixedly connected to the inner wall of the mounting groove 77.

[0042] As the rotating plate 6 rotates, it drives the drive disk 62 to rotate. The rotation of the drive disk 62 drives the limiting rod 71 to rotate within the limiting groove 73. The top of the limiting rod 71 contacts the inclined surface of the limiting block 72. As the limiting rod 71 rotates, the top of the limiting rod 71 moves downward under the action of the inclined surface of the limiting block 72, simultaneously squeezing the elastic element 76. As the limiting rod 71 rotates further, the top of the limiting rod 71 disengages from the current limiting block 72 and falls into the slot 75 between two adjacent limiting blocks 72. At this time, the drive column 64 disengages from the drive groove 65, and the connecting part 3 stops rotating. Meanwhile, the limiting rod 71 is located in the slot 75 under the action of the elastic element 76. Due to the presence of the inclined surface, on the one hand, it facilitates the smooth movement of the limiting rod 71 on the limiting block 72, and on the other hand, it prevents the limiting rod 71 from rotating within the limiting groove 73 when no rotational driving torque is applied, effectively improving the practicality and reliability of the device.

[0043] Reference Figure 5 and Figure 6 The top of the limiting rod 71 is provided with a groove 78, and a rotating shaft 79 is rotatably arranged in the groove 78. The rotating shaft 79 rolls in contact with the inclined surface, and the surface of the rotating shaft 79 is covered with a sliding layer.

[0044] Reference Figure 6 The top of the drive disk 62 is provided with a mounting base 710. There are two mounting bases 710, which are symmetrically arranged along the axis of the mounting shaft 61. The mounting bases 710 are fixedly connected to the mounting blocks 74 one by one.

[0045] Reference Figure 7 The bottom of the connecting part 3 is provided with a placement groove 8 in the vertical direction. A drive cylinder 81 is fixedly installed in the placement groove 8, and the pickup part 31 is fixedly installed at the output end of the drive cylinder 81.

[0046] Reference Figure 7 As one embodiment of the present invention, the pickup unit 31 is configured as an electromagnetic component. In actual use, the metal sheet is picked up and fixed by electromagnetic attraction, and the fixing effect is more stable than that of airtight attraction.

[0047] The implementation principle of the metal sheet bending device proposed in this embodiment of the invention is as follows:

[0048] In actual use, the sheet metal material to be processed is first picked up by the pick-up unit 31, and then the installation unit 2 is moved by the drive component 4, which in turn moves the sheet metal material, thus enabling the feeding of the sheet metal material. After feeding, the sheet metal material can be bent by the machine body 1. After bending, the sheet metal material is picked up again by the pick-up unit 31, and then the connecting part 3 is rotated, which drives the sheet metal material to rotate. At the same time, the deflection angle of the connecting part 3 is limited by the limiting component 7, thus simultaneously limiting the rotation angle of the sheet metal material. In the above process, no manual operation is required, which can effectively reduce the labor intensity of the workers, while ensuring the feeding accuracy of the sheet metal material, thereby improving the bending processing quality of the sheet metal material.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A metal sheet bending device, comprising a body (1), wherein the body (1) is provided with a feed inlet (11), characterized in that: An installation part (2) is slidably provided on the body (1) along the length direction of the feed inlet (11). The installation part (2) is located outside the feed end of the feed inlet (11). A drive assembly (4) is provided on the installation part (2). The drive assembly (4) is used to drive the installation part (2) to move on the body (1). The bottom of the mounting part (2) is rotatably provided with a connecting part (3), the bottom of the connecting part (3) is provided with a picking part (31), the top of the connecting part (3) is connected to the driving component (4) for transmission, and a limiting component (7) is provided on the mounting part (2), the limiting component (7) is used to limit the deflection angle of the connecting part (3). The picking part (31) is slidably disposed on the connecting part (3) in the vertical direction; The machine body (1) has a slide groove (5) along the length direction of the feed inlet (11), and a slider (51) is slidably arranged in the slide groove (5). The mounting part (2) is located at the bottom of the slider (51), and the driving component (4) is used to drive the slider (51) to move in the slide groove (5). The drive assembly (4) includes a drive rod (41) and a drive component (42). The drive rod (41) is rotatably disposed in the slide groove (5) along the length direction of the slide groove (5). A threaded groove (43) is provided on the drive rod (41) along the length direction of the drive rod (41). The slider (51) is slidably sleeved on the drive rod (41). A receiving groove (52) is provided in the slider (51). A drive sleeve (521) is rotatably disposed in the receiving groove (52). The drive sleeve (521) is threadedly sleeved on the drive rod (41). The drive component (42) is disposed on the mounting part (2). The upper output shaft of the drive component (42) is connected to the drive sleeve (521) in a transmission connection. A rotating plate (6) is rotatably provided at the bottom of the mounting part (2). The rotating plate (6) is connected to the bottom output shaft of the driving component (42). A mounting shaft (61) is fixedly provided at the top of the connecting part (3). A driving disk (62) is coaxially fixedly provided on the mounting shaft (61). A connecting rod (63) is fixedly provided on the rotating plate (6) in the horizontal direction. A driving column (64) is fixedly provided on the connecting rod (63). A driving groove (65) is provided on the driving disk (62) for the driving column (64) to slide into. The drive groove (65) is opened radially along the mounting shaft (61). The drive groove (65) is opened at one end away from the mounting shaft (61). Multiple drive grooves (65) are opened and are evenly arranged along the axial direction of the mounting shaft (61). The drive disk (62) is provided with an arc-shaped groove (66). The arc-shaped groove (66) is adapted to the rotating plate (6). Multiple arc-shaped grooves (66) are also opened and are evenly arranged along the axial direction of the mounting shaft (61). The limiting component (7) includes a limiting rod (71) and a limiting block (72). A limiting groove (73) is provided at the bottom of the mounting part (2). The top end of the mounting shaft (61) is rotatably disposed in the limiting groove (73). The limiting block (72) is disposed in the limiting groove (73). Multiple limiting blocks (72) are provided. Multiple limiting blocks (72) are disposed in the limiting groove (73) along the axial direction of the mounting shaft (61). The top of the drive disk (62) is fixedly provided with a mounting block (72). 74), the limiting rod (71) is slidably disposed on the mounting block (74), the top of the limiting rod (71) is inserted into the limiting groove (73), and a slot (75) for the limiting rod (71) to be inserted is formed between two adjacent limiting blocks (72), the number of slots (75) is adapted to the number of drive slots (65), and an elastic element (76) is provided on the mounting block (74), the elastic element (76) is used to drive the limiting rod (71) to move toward the direction close to the limiting groove (73); The lower side of the limiting block (72) is set as an inclined surface, which extends upward and the top of the inclined surface is tangent to the bottom wall of the limiting groove (73). The top of the limiting rod (71) slides in contact with the inclined surface.

2. The metal sheet bending device according to claim 1, characterized in that: Two mounting blocks (74) are provided, and the two mounting blocks (74) are symmetrically arranged along the axis of the mounting shaft (61). The top of the mounting block (74) is provided with a mounting groove (77) in the vertical direction. The limiting rod (71) is slidably disposed in the mounting groove (77). The elastic element (76) is disposed in the mounting groove (77). The elastic element (76) is configured as a compression spring. One end of the elastic element (76) is fixedly connected to the limiting rod (71), and the other end is fixedly connected to the inner wall of the mounting groove (77).

3. The metal sheet bending device according to claim 2, characterized in that: The top of the limiting rod (71) is provided with a groove (78), and a rotating shaft (79) is rotatably arranged in the groove (78). The rotating shaft (79) is in rolling contact with the inclined surface, and the surface of the rotating shaft (79) is covered with a sliding layer.

4. The metal sheet bending device according to claim 1, characterized in that: The top of the drive disk (62) is provided with a mounting base (710). There are two mounting bases (710), which are symmetrically arranged along the axis of the mounting shaft (61). The mounting bases (710) are fixedly connected to the mounting blocks (74) one by one.

5. A metal sheet bending device according to claim 1, characterized in that: The bottom of the connecting part (3) is provided with a placement groove (8) in the vertical direction. A drive cylinder (81) is fixedly installed in the placement groove (8). The picking part (31) is fixedly installed at the output end of the drive cylinder (81).

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