Bending equipment

Abstract

The invention relates to the technical field of electronic processing equipment, in particular to bending equipment. The bending equipment comprises a bending unit arranged on a rack, the bending unit comprises a first driving mechanism, a driving shaft, a supporting roller pin and a bending roller pin, and one end of the driving shaft is connected with the driving end of the first driving mechanism so that the driving shaft can rotate around the axis of the driving shaft under driving of the first driving mechanism; the supporting roller pin and the bending roller pin are arranged at the other end of the driving shaft in parallel at intervals, and the axis of the supporting roller pin and the axis of the driving shaft are collinear. The soft plate can stretch into the position between the supporting roller pin and the bending roller pin, and when the driving shaft rotates, the bending roller pin can push the soft plate to be bent around the supporting roller pin. Therefore, the two roller pins are matched for bending, the occupied space is small, the flexible board bending requirement of a small operation space is met, and the surface of a battery cell can be prevented from being stabbed; meanwhile, the stress acting on the flexible board during bending can be reduced, and the flexible board is prevented from being damaged; and meanwhile, large-angle bending of the flexible board can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of electronic processing equipment, and in particular to a bending equipment. Background Art

[0002] During the battery production process, it is usually necessary to use bending equipment to bend the soft board at the end of the battery cell (such as PCM board or BMU board) to meet assembly requirements. The bending operation not only requires the board to be bent into a specific angle, but also the dimensional accuracy after bending must be strictly controlled to ensure the performance and reliability of the final product.

[0003] However, when existing bending equipment is faced with some products with special structures, for example, when the bending line of the flexible board is very close to the battery cell and the bending operation space is compact, it is easy to scratch the surface of the battery cell, resulting in poor product appearance. Summary of the invention

[0004] The object of the present invention is to provide a bending device, which can safely and stably complete the bending of a soft plate when the bending operation space is narrow.

[0005] The present invention provides a bending device, comprising a frame and a bending unit arranged on the frame;

[0006] The bending unit comprises a first driving mechanism, a driving shaft, a supporting needle roller and a bending needle roller;

[0007] The drive shaft is rotatably arranged, and one end of the drive shaft is connected to the drive end of the first drive mechanism, and the drive shaft can rotate around its own axis under the drive of the first drive mechanism;

[0008] The supporting needle roller and the bending needle roller are arranged at the other end of the driving shaft in parallel and at intervals, and the supporting needle roller is coaxially arranged with the driving shaft;

[0009] The soft plate to be bent can extend between the supporting needle roller and the bending needle roller. When the driving shaft rotates, the bending needle roller can push the soft plate to bend around the supporting needle roller.

[0010] Furthermore, the bending device further comprises a second driving mechanism, a third driving mechanism and a first bracket;

[0011] The third driving mechanism is mounted on the frame, the second driving mechanism is mounted on the driving end of the third driving mechanism, and the bending unit is mounted on the driving end of the second driving mechanism through the first bracket;

[0012] The second driving mechanism is used to drive the bending unit to move along the first direction, and the third driving mechanism is used to drive the bending unit to move along the second direction. The first direction is the axial direction of the driving shaft, the second direction is perpendicular to the first direction, and the second direction is the thickness direction of the soft board to be bent.

[0013] Further, a transmission screw is installed at the driving end of the third driving mechanism, the transmission screw is arranged along the second direction, and the transmission screw can rotate around its own axis under the drive of the third driving mechanism;

[0014] A transmission support is threadedly connected to the transmission screw, the transmission support is slidably arranged on the frame along the second direction, and the second driving mechanism is installed on the transmission support.

[0015] Further, two clamping parts are formed at one end of the driving shaft away from the first driving mechanism, and the two clamping parts are symmetrically arranged with respect to the radial line of the driving shaft;

[0016] The bending unit further includes a fastener, one end of the supporting needle roller and one end of the bending needle roller can be inserted between the two clamping parts, and the fastener can be passed through the two clamping parts to clamp the supporting needle roller and the bending needle roller by the two clamping parts;

[0017] The two clamping parts are both formed with an arc-shaped limiting part adapted to abut against the outer wall of the supporting needle roller;

[0018] One end of the bending needle roller forms a mounting block, the mounting block is inserted between the two clamping parts, and the two clamping parts form a limiting step part on the side of the mounting block facing the supporting needle roller, and the mounting block can be abutted against the limiting step part.

[0019] Furthermore, the diameter of the supporting needle roller is d, 0.8mm≤d≤1.5mm.

[0020] Furthermore, the spacing between the supporting needle roller and the bending needle roller is h, 0.35mm≤h≤0.6mm.

[0021] Furthermore, the bending unit further comprises a photoelectric switch, and the photoelectric switch is communicatively connected with the first driving mechanism;

[0022] A sensing sheet is provided on the side wall of the driving shaft, and the sensing sheet can rotate with the driving shaft to the sensing area of ​​the photoelectric switch;

[0023] There are multiple photoelectric switches, and the multiple photoelectric switches are arranged at intervals along the circumference of the driving shaft.

[0024] Furthermore, the bending device also includes a shaping unit;

[0025] The shaping unit and the bending unit are located on opposite sides of the frame in a first direction;

[0026] The shaping unit comprises two shaping blocks arranged opposite to each other along the second direction, and the two shaping blocks are respectively mounted on the frame through fourth driving mechanisms, so that the two shaping blocks can reciprocate and slide along the second direction under the drive of the respective fourth driving mechanisms;

[0027] The soft board can extend between the two shaping blocks so that the soft board can be clamped and leveled by the two shaping blocks.

[0028] Further, at least one of the shaping blocks comprises a main body and a shaping portion, and the shaping portion is installed on a side of the main body facing the other shaping block through a pressure sensor.

[0029] Furthermore, the frame is mounted on a slide module, and the slide module can drive the frame to move along the first direction and the second direction.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The bending device provided by the present invention comprises a frame and a bending unit arranged on the frame, wherein the bending unit comprises a first driving mechanism, a driving shaft, a supporting needle roller and a bending needle roller, wherein the driving shaft is rotatably arranged, and one end of the driving shaft is connected to the driving end of the first driving mechanism, so that the driving shaft can rotate around its own axis under the drive of the first driving mechanism; the supporting needle roller and the bending needle roller are arranged at the other end of the driving shaft in parallel and at intervals, and the axis of the supporting needle roller is colinear with the axis of the driving shaft. Thus, when the driving shaft rotates under the drive of the first driving mechanism, the supporting needle roller can rotate around its own axis, and the bending needle roller can rotate around the supporting needle roller. When the soft board at the end of the battery cell is bent, the supporting needle roller and the bending needle roller can extend to both sides of the thickness direction of the soft board, so that the soft board is located between the supporting needle roller and the bending needle roller; then the driving shaft is rotated, and as the driving shaft rotates, the bending needle roller will rotate around the supporting needle roller, and at the same time, the soft board is pushed to bend around the supporting needle roller, and the bending angle of the soft board can be controlled by controlling the rotation angle of the driving shaft.

[0032] Therefore, when bending the soft board through the bending equipment of the present application, it is only necessary to extend the supporting needle rollers and the bending needle rollers to both sides of the soft board, and then control the rotation angle of the driving shaft. It not only occupies a small space, but also can meet the bending needs of soft boards in small operating spaces; at the same time, the bending of the soft board is completed by the rotational coordination of the two needle rollers, and the stress acting on the soft board during bending can be effectively reduced, thereby avoiding damage to the soft board and improving the product yield; at the same time, the two needle rollers will not contact the surface of the battery cell during the bending process, thereby avoiding poking the battery cell and causing poor product appearance; at the same time, even when the bending operating space is small, the soft board can still be bent at a large angle, such as bending the soft board 180°. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of the structure of a bending device provided in an embodiment of the present invention;

[0035] Figure 2 A schematic structural diagram of a bending unit of a bending device provided in an embodiment of the present invention;

[0036] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0037] Figure 4 A schematic structural diagram of a shaping unit of a bending device provided in an embodiment of the present invention.

[0038] Reference numerals:

[0039] 1-frame, 2-bending unit, 21-first driving mechanism, 22-second driving mechanism, 23-third driving mechanism, 24-driving shaft, 25-supporting needle roller, 26-bending needle roller, 27-transmission support, 28-photoelectric switch, 29-clamping part, 210-mounting block, 3-shaping unit, 31-shaping block, 32-fourth driving mechanism;

[0040] a-first direction, b-second direction. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0042] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0043] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Refer to the following Figures 1 to 4 The present invention describes a bending device according to some embodiments of the present application.

[0047] The present application provides a bending device, such as Figures 1 to 3 As shown, the bending device includes a frame 1 and a bending unit 2 arranged on the frame 1, and the bending unit 2 includes a first driving mechanism 21, a driving shaft 24, a supporting needle roller 25 and a bending needle roller 26. The driving shaft 24 is rotatably arranged, and one end of the driving shaft 24 is connected to the driving end of the first driving mechanism 21, so that the driving shaft 24 can rotate around its own axis under the drive of the first driving mechanism 21; the supporting needle roller 25 and the bending needle roller 26 are arranged at the other end of the driving shaft 24 in parallel and at intervals, and the axis of the supporting needle roller 25 is colinear with the axis of the driving shaft 24. Therefore, when the driving shaft 24 rotates under the drive of the first driving mechanism 21, the supporting needle roller 25 can rotate around its own axis, and the bending needle roller 26 can rotate around the supporting needle roller 25.

[0048] When the soft board at the end of the battery cell is bent, the supporting needle roller 25 and the bending needle roller 26 can extend to both sides of the soft board in the thickness direction, so that the soft board is located between the supporting needle roller 25 and the bending needle roller 26; then the driving shaft 24 is rotated, and as the driving shaft 24 rotates, the bending needle roller 26 will rotate around the supporting needle roller 25, and at the same time push the soft board to bend around the supporting needle roller 25. The bending angle of the soft board can be controlled by controlling the rotation angle of the driving shaft 24.

[0049] Therefore, when bending the soft board through the bending equipment of the present application, it is only necessary to extend the supporting needle roller 25 and the bending needle roller 26 to both sides of the soft board, and then control the rotation angle of the driving shaft 24. It not only occupies a small space, but also can meet the bending needs of the soft board in a small operating space; at the same time, the bending of the soft board is completed by the rotation cooperation of the two needle rollers, and it can also effectively reduce the stress acting on the soft board during bending, avoid damage to the soft board, and improve the product yield; at the same time, the two needle rollers will not contact the surface of the battery cell during the bending process, so as to avoid poking the battery cell and causing poor product appearance; at the same time, in the case of a narrow bending operation space, the soft board can still be bent at a large angle, for example, the soft board can be bent 180°.

[0050] In one embodiment of the present application, preferably, Figure 2 As shown, the bending device further includes a second driving mechanism 22 and a third driving mechanism 23, the third driving mechanism 23 is mounted on the frame 1, the second driving mechanism 22 is mounted on the driving end of the third driving mechanism 23, and the bending unit 2 is mounted on the driving end of the second driving mechanism 22 through the first bracket. The second driving mechanism 22 can drive the bending unit 2 to reciprocate along a first direction a, the first direction a is the axial direction of the driving shaft 24, and the third driving mechanism 23 can drive the bending unit 2 to reciprocate along a second direction b, the second direction b is perpendicular to the first direction a, for example, when the first direction a is a horizontal direction, the second direction b is a vertical direction.

[0051] Therefore, when bending the soft board at the end of the battery cell, the height of the bending unit 2 can be adjusted by the third driving device so that the gap between the supporting needle roller 25 and the bending needle roller 26 is opposite to the soft board, and then the second driving device is used to drive the bending unit 2 to move along the first direction a to approach the soft board so that the soft board enters between the supporting needle roller 25 and the bending needle roller 26.

[0052] In this embodiment, preferably, Figure 2As shown, the second driving mechanism 22 is installed on the driving end of the third driving mechanism 23 through a transmission support 27. Specifically, the driving end of the third driving mechanism 23 is provided with a transmission screw, which is arranged along the second direction b, and the third driving mechanism 23 can drive the transmission screw to rotate around the axis of the transmission screw; the transmission support 27 is slidably arranged on the frame 1 along the second direction b through a slide rail, and the transmission support 27 is screwed with the transmission screw, so that when the third driving mechanism 23 drives the transmission screw to rotate, the transmission support 27 can drive the second driving mechanism 22 and the bending unit 2 to move along the second direction b. For example, when the transmission screw rotates clockwise under the drive of the third driving mechanism 23, the transmission support 27 drives the second driving mechanism 22 and the bending unit 2 to rise along the second direction b, and when the transmission screw rotates counterclockwise under the drive of the third driving mechanism 23, the transmission support 27 drives the second driving mechanism 22 and the bending unit 2 to descend along the second direction b.

[0053] In this embodiment, preferably, the second driving mechanism 22 is a slide cylinder arranged along the first direction a, and the first bracket is mounted on the slide cylinder; in the bending unit 2, the first driving mechanism 21 is fixed on the first bracket, and the driving shaft 24 is rotatably mounted on the first bracket around its own axis through a bearing seat. Thus, the bending unit 2 can be lifted and lowered as a whole under the drive of the second driving mechanism 22 and the third driving mechanism 23, and the driving shaft 24 can be stably rotated under the drive of the first driving mechanism 21 to ensure the stability of the bending of the soft board.

[0054] In this embodiment, preferably, Figure 2 As shown, the bending unit 2 also includes a photoelectric switch 28, which is fixed to the circumferential outer side of the driving shaft 24. For example, the photoelectric switch 28 is fixed to a bearing seat supporting the driving shaft 24. An induction sheet is provided on the outer wall of the driving shaft 24. When the driving shaft 24 rotates, the driving shaft 24 can drive the induction sheet to rotate to the induction area of ​​the photoelectric switch 28.

[0055] The photoelectric switch 28 is connected to the first driving mechanism 21 in communication so as to control the start and stop of the first driving mechanism 21. In this embodiment, there are multiple photoelectric switches 28, which are arranged at intervals along the circumference of the driving shaft 24.

[0056] For example, there are two photoelectric switches 28, one at the starting position of the rotation and the other at the ending position of the rotation; before bending the soft board, the first driving mechanism 21 is first started to rotate the driving shaft 24. When the sensing sheet rotates with the driving shaft 24 to the photoelectric switch 28 at the starting position, the first driving mechanism 21 stops working and stops the driving shaft 24 from rotating. At this time, the line connecting the center points of the supporting needle roller 25 and the bending needle roller 26 is parallel to the soft board, so that the soft board can smoothly enter between the supporting needle roller 25 and the bending needle roller 26. After the soft board enters between the supporting needle roller 25 and the bending needle roller 26, the first driving mechanism 21 is started again to rotate the driving shaft 24 until the sensing sheet rotates with the driving shaft 24 to the photoelectric switch 28 at the ending position, and the soft board is bent to the desired angle.

[0057] When the number of the photoelectric switches 28 is three or more, except for the photoelectric switch 28 at the starting position, the positions of the other photoelectric switches 28 correspond to different rotation angles of the driving shaft 24 and also correspond to different bending angles of the flexible board.

[0058] In one embodiment of the present application, preferably, Figure 3 As shown, the support needle roller 25 and the bending needle roller 26 are both detachably mounted on the drive shaft 24. Specifically, two clamping parts 29 are formed at one end of the drive shaft 24 away from the first drive mechanism 21, and the two clamping parts 29 are symmetrically spaced about the radial line of the drive shaft 24. A slot is formed between the two clamping parts 29, and one end of the support needle roller 25 and one end of the bending needle roller 26 can be inserted into the slot, and a fastener can be inserted between the two clamping parts 29 so that the two clamping parts 29 clamp the support needle roller 25 and the bending needle roller 26. Therefore, the support needle roller 25 and the bending needle roller 26 can be replaced according to the bending requirements of the soft board. For example, by replacing the support needle roller 25, the soft board can have different bending R angles, even if the arc transition part at the bending point of the soft board has different radii. At the same time, the bending needle roller 26 can also be moved along the radial direction of the driving shaft 24 to adjust the distance between the bending needle roller 26 and the supporting needle roller 25, so as to adapt to the bending requirements of soft plates of different thicknesses.

[0059] In this embodiment, preferably, the diameter of the support needle 25 is d, 0.8 mm ≤ d ≤ 1.5 mm, for example, d is 1.0 mm, 1.2 mm or 1.4 mm. Selecting support needles 25 of different diameters can make the soft board have different bending R angles.

[0060] In this embodiment, preferably, the spacing between the supporting needle roller 25 and the bending needle roller 26 is h, 0.35mm≤h≤0.6mm; for example, h is 0.4mm, 0.45mm, 0.5mm or 0.55mm, so that the bending unit 2 can meet the bending requirements of soft plates of different thicknesses.

[0061] In this embodiment, preferably, the two clamping portions 29 are each provided with an arc-shaped limiting portion at a position opposite to the supporting needle roller 25, and the two arc-shaped limiting portions can fit and abut against the outer wall of the supporting needle roller 25, thereby utilizing the two arc-shaped limiting portions to improve the installation stability of the supporting needle roller 25 between the two clamping portions 29.

[0062] In this embodiment, preferably, a mounting block 210 is formed at one end of the bending needle roller 26, and the bending needle roller 26 is inserted between the two clamping parts 29 through the mounting block 210. Both side surfaces of the mounting block are flat and abut against the two clamping parts 29, thereby increasing the contact area between the two clamping parts 29 and the bending needle roller 26, and improving the installation stability of the bending needle roller 26 between the two clamping parts 29.

[0063] Preferably, the two clamping portions 29 form a step portion on the side of the mounting block 210 facing the supporting needle roller 25, and the mounting block 210 can abut against the step portion, so that the minimum installation distance between the supporting needle roller 25 and the bending needle roller 26 can be limited by the step portion to ensure that a soft board can enter between the two.

[0064] In one embodiment of the present application, preferably, Figure 1 and Figure 4 As shown, the bending equipment also includes a shaping unit 3, which is mounted on the frame 1, and the shaping unit 3 and the bending unit 2 are located on opposite sides of the first direction a of the frame 1. The shaping unit 3 includes two shaping blocks 31, and the two shaping blocks 31 are arranged oppositely along the second direction b, and the opposite surfaces of the two shaping blocks 31 are planes parallel to each other. The two shaping blocks 31 are respectively mounted on the frame 1 through the fourth driving mechanism 32, so that the two shaping blocks 31 can reciprocate along the second direction b under the drive of their respective fourth driving mechanisms 32. Before bending the soft board, if the soft board is uneven, the uneven position of the soft board can be first extended between the two shaping blocks 31, and then the two shaping blocks 31 can be moved toward each other to clamp and level the uneven position of the soft board.

[0065] In this embodiment, preferably, at least one of the two shaping blocks 31 includes a main body and a shaping part, and the shaping part is installed on the side of the main body facing the other shaping block 31 through a pressure sensor. Therefore, when clamping and leveling the soft board, the pressure acting on the soft board can be detected by the pressure sensor, and the sensor can be connected to the two fourth driving mechanisms 32 for communication, so as to control the two fourth driving mechanisms 32 to stop working when the pressure reaches a preset value, so as to avoid excessive pressure on the soft board during leveling and damage to the soft board. Preferably, the fourth driving mechanism 32 is a slide cylinder.

[0066] In one embodiment of the present application, preferably, the bending equipment also includes a slide module, and the frame 1 is installed on the slide module, so that the sliding module can be used to move the bending equipment along the first direction a and the second direction b, so that the position of the bending equipment can be flexibly adjusted so that it can bend the soft board at different positions.

[0067] The slide module can also be a three-axis linear slide, so that the bending equipment can be adjusted in position in three-dimensional space.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bending device, characterized in that: It comprises a frame and a bending unit arranged on the frame; The bending unit comprises a first driving mechanism, a driving shaft, a supporting needle roller and a bending needle roller; The drive shaft is rotatably arranged, and one end of the drive shaft is connected to the drive end of the first drive mechanism, and the drive shaft can rotate around its own axis under the drive of the first drive mechanism; The supporting needle roller and the bending needle roller are arranged at the other end of the driving shaft in parallel and at intervals, and the supporting needle roller is coaxially arranged with the driving shaft; The soft plate to be bent can extend between the supporting needle roller and the bending needle roller. When the driving shaft rotates, the bending needle roller can push the soft plate to bend around the supporting needle roller.

2. The bending device according to claim 1, characterized in that: Also includes a second driving mechanism, a third driving mechanism and a first bracket; The third driving mechanism is mounted on the frame, the second driving mechanism is mounted on the driving end of the third driving mechanism, and the bending unit is mounted on the driving end of the second driving mechanism through the first bracket; The second driving mechanism is used to drive the bending unit to move along a first direction, and the third driving mechanism is used to drive the bending unit to move along a second direction. The first direction is the axial direction of the driving shaft, the second direction is perpendicular to the first direction, and the second direction is the thickness direction of the soft board to be bent.

3. The bending device according to claim 2, characterized in that: A transmission screw is installed at the driving end of the third driving mechanism, the transmission screw is arranged along the second direction, and the transmission screw can rotate around its own axis under the drive of the third driving mechanism; A transmission support is threadedly connected to the transmission screw, the transmission support is slidably arranged on the frame along the second direction, and the second driving mechanism is installed on the transmission support.

4. The bending device according to claim 1, characterized in that: Two clamping parts are formed at one end of the driving shaft away from the first driving mechanism, and the two clamping parts are symmetrically spaced about the radial line of the driving shaft; The bending unit further comprises a fastener, one end of the supporting needle roller and one end of the bending needle roller can be inserted between the two clamping parts, and the fastener can be passed through the two clamping parts to clamp the supporting needle roller and the bending needle roller by the two clamping parts; The two clamping parts are both formed with an arc-shaped limiting part adapted to abut against the outer wall of the supporting needle roller; One end of the bending needle roller forms a mounting block, the mounting block is inserted between the two clamping parts, and the two clamping parts form a limiting step part on the side of the mounting block facing the supporting needle roller, and the mounting block can be abutted against the limiting step part.

5. The bending device according to claim 1, characterized in that: The diameter of the supporting needle roller is d, 0.8mm≤d≤1.5mm.

6. The bending device according to claim 1, characterized in that: The spacing between the supporting needle roller and the bending needle roller is h, 0.35mm≤h≤0.6mm.

7. The bending device according to claim 1, characterized in that: The bending unit further comprises a photoelectric switch, and the photoelectric switch is communicatively connected with the first driving mechanism; A sensing sheet is provided on the side wall of the driving shaft, and the sensing sheet can rotate with the driving shaft to the sensing area of ​​the photoelectric switch; There are multiple photoelectric switches, and the multiple photoelectric switches are arranged at intervals along the circumference of the driving shaft.

8. The bending device according to claim 2, characterized in that: Also includes shaping unit; The shaping unit and the bending unit are located on opposite sides of the frame in a first direction; The shaping unit comprises two shaping blocks arranged opposite to each other along the second direction, and the two shaping blocks are respectively mounted on the frame through fourth driving mechanisms, so that the two shaping blocks can reciprocate and slide along the second direction under the drive of the respective fourth driving mechanisms; The soft board can extend between the two shaping blocks so that the soft board can be clamped and leveled by the two shaping blocks.

9. The bending device according to claim 8, characterized in that: At least one of the shaping blocks comprises a main body and a shaping portion, and the shaping portion is installed on a side of the main body facing the other shaping block through a pressure sensor.

10. The bending device according to claim 2, characterized in that: The frame is installed on a slide module, and the slide module can drive the frame to move along the first direction and the second direction.

Images