Integrated bending device and method for sheet metal part

Abstract

The sheet metal part integrated bending device comprises a workbench and a mounting groove formed in the workbench and used for workpiece movement, a forming groove communicating with the mounting groove is formed in the workbench, arc-shaped grooves are formed in the two sides of an opening of the forming groove, and the arc-shaped grooves communicate with the mounting groove. A forming mechanism is arranged right in front of the forming groove, a third air cylinder arm is fixedly connected to the side wall of the forming mechanism, the free end of the third air cylinder arm is connected to a third air cylinder, the third air cylinder is fixedly arranged on the workbench, and a flattening mechanism is arranged on the forming mechanism and used for flattening the workpiece after the workpiece is pressed and formed by the forming mechanism. Flattening of the formed workpiece is completed; by means of the flattening mechanism, the horizontal section and the arc-shaped section of the formed workpiece are flattened, so that the clamped position of the workpiece can be flattened due to the fact that the front end of the workpiece is stressed, the quality of the formed workpiece is good, and the yield of the formed workpiece is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal processing, and in particular to a sheet metal integrated bending device and method thereof. Background Art

[0002] Sheet metal bending is a process in sheet metal processing. It is to bend and deform the sheet metal parts by manual or machine stamping to form workpieces of different shapes as required.

[0003] Sheet metal parts are manufactured in various shapes, such as square and column, with different diameters and widths. They are fixed by clamping them with fixed clamps. The fixed clamps have limitations on the specifications and shapes of sheet metal parts. After the sheet metal parts are clamped by the clamps, the front end of the sheet metal parts is compressed and bent, and the clamped position will be tilted due to the force on the front end, resulting in uneven horizontal sections of the formed sheet metal parts, thereby reducing the yield of the formed parts. In order to solve the above problems, the present invention proposes an integrated sheet metal bending device and method. Summary of the invention

[0004] To achieve the above-mentioned purpose, the present invention provides an integrated bending device for sheet metal parts, including a workbench, and a mounting groove opened on the workbench and used for moving a workpiece, a molding groove connected to the mounting groove is opened on the workbench, arc grooves are opened on both sides of the opening of the molding groove, a molding mechanism is arranged directly in front of the molding groove, a third cylinder arm is fixedly connected to the side wall of the molding mechanism, the free end of the third cylinder arm is connected to the third cylinder, the third cylinder is fixed on the workbench, and a flattening mechanism is arranged on the molding mechanism to complete the flattening of the molded workpiece after the molding mechanism realizes the pressing and forming of the workpiece.

[0005] Optionally, the forming mechanism includes a forming head and a supporting plate, the supporting plate is interconnected with the third cylinder arm, and a first sensor is arranged between the forming head and the supporting plate, and the first sensor is used for connecting the forming head and the supporting plate.

[0006] Optionally, the flattening mechanism includes two flattening bodies respectively arranged on both sides of the forming head, the flattening body contains a flattening arc segment and a flattening horizontal segment which are matched with the arc segment and the horizontal segment of the formed workpiece, a fixing column is fixedly connected to the upper end face of the flattening body, a fixing rod is fixedly connected to the side wall of the fixing column, a second cylinder arm is fixedly connected to the side wall of the fixing rod, the free end of the second cylinder arm is fixedly connected to the driving end of the second cylinder, and the second cylinder is fixedly arranged on the upper end face of the forming head.

[0007] Optionally, a connecting mechanism is provided on the forming head and the supporting plate, and the connecting mechanism includes a second support assembly arranged between the forming head and the supporting plate, and a first connecting rod connected to the side wall of the flattening body, the free end of the first connecting rod is fixedly connected to the second connecting rod, and the second connecting rod is fixedly set on the supporting plate, wherein the second support assembly includes a second support rod, a second support tube and a second support spring, the second support rod is movably inserted in the second support tube, the second support spring is wound outside the second support rod, and the two ends of the second support spring are respectively fixedly connected to the side wall of the second support rod and the outer side wall of the second support tube.

[0008] Optionally, it also includes a locking mechanism, which includes a fixing cylinder fixedly connected to the side wall of the supporting plate, the fixing cylinder movably inserted in the fixing groove, the fixing groove is opened on the forming head, the side wall of the fixing groove is fixedly connected with an electromagnet, a sliding rod is fixedly connected to the electromagnet, a sliding sleeve outside the sliding rod is provided with a magnet slip ring, a first spring is wrapped around the outside of the sliding rod, and two ends of the first spring are respectively fixedly connected to the side wall of the sliding rod and the side wall of the magnet slip ring, one end of the push-pull rod is hinged on the magnet slip ring, the other end of the push-pull rod is hinged on the locking rod, the locking rod is movably inserted in the locking groove, the locking groove is opened on the inner side wall of the fixing cylinder, one end of the locking rod located outside the locking groove is fixedly connected to a third support assembly, and the other end of the third support assembly is fixedly connected to the sliding rod.

[0009] Optionally, the third support assembly includes a third support rod, a third support tube and a third support spring, the third support rod is movably inserted in the third support tube, the third support spring is wound outside the third support rod, and the two ends of the third support spring are respectively fixedly connected to the side wall of the third support rod and the outer side wall of the third support tube.

[0010] Optionally, two groups of locking grooves are provided, and a plurality of locking grooves are provided in each of the two groups of locking grooves. There is a gap between two adjacent locking grooves, and the size of the gap is less than 0.5 mm.

[0011] Optionally, the flattening body includes a first flattening head and a second flattening head, a first cylinder is fixedly provided on the second flattening head, a first cylinder arm is connected to the driving end of the first cylinder, a free end of the first cylinder arm is fixedly connected to a guide column, the guide column is movably inserted in a guide groove, the guide groove is provided on the second flattening head, one end of the guide column outside the guide groove is fixedly connected to the first flattening head, a second sensor is provided on the arc section of the first flattening head, and a third sensor is provided on the horizontal section of the first flattening head.

[0012] Optionally, the flattening body also includes a first support assembly, two ends of which are respectively fixedly connected to the side wall of the guide column and the side wall of the guide groove, the first support assembly includes a first support rod, a first support tube and a first support spring, the first support rod is movably inserted in the first support tube, the first support spring is wound outside the first support rod, and the two ends of the first support spring are respectively fixedly connected to the side wall of the first support rod and the outer side wall of the first support tube.

[0013] To achieve the above object, the present invention further provides a sheet metal integrated bending method, wherein the sheet metal integrated bending device is used to bend the sheet metal, and the method comprises the following steps:

[0014] S1: Place the workpiece in the installation slot and place it in front of the forming slot;

[0015] S2: Drive the forming mechanism to move forward, squeeze the workpiece into the forming groove to complete the bending of the workpiece;

[0016] S3: After the bending is completed, the flattening mechanism flattens the arc section and the horizontal section of the formed workpiece.

[0017] The beneficial effects of the present invention are as follows:

[0018] The present invention provides a flattening mechanism on the forming mechanism, so that after the forming mechanism completes the bending of the workpiece, the flattening mechanism can be used to flatten the horizontal section and the arc section of the formed workpiece, thereby flattening the part of the workpiece that is clamped and will be raised due to the force on the front end, thereby making the quality of the formed workpiece excellent and improving the yield of the formed workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the sheet metal after forming;

[0020] Figure 2 It is a schematic diagram of the structure of an embodiment of the integrated bending device for sheet metal parts of the present invention;

[0021] Figure 3 The integrated bending device for sheet metal parts of the present invention Figure 2 A schematic diagram of the enlarged structure in the middle;

[0022] Figure 4 It is a structural schematic diagram of the flattening mechanism in the integrated bending device for sheet metal parts of the present invention;

[0023] Figure 5 The integrated bending device for sheet metal parts of the present invention Figure 4 Middle B is an enlarged schematic diagram of the structure;

[0024] Figure 6It is a structural schematic diagram of the locking mechanism in the integrated bending device for sheet metal parts of the present invention;

[0025] Figure 7 The integrated bending device for sheet metal parts of the present invention Figure 6 A magnified schematic diagram of the C structure;

[0026] Figure 8 It is a schematic diagram of the force-bearing structure in the first stage of the integrated bending device for sheet metal parts of the present invention;

[0027] Fig. 9 It is a schematic diagram of the force-bearing structure in the second stage of the integrated bending device for sheet metal parts of the present invention;

[0028] Fig.10 The figure is a flow chart of the integrated bending method of sheet metal parts of the present invention.

[0029] Reference numerals

[0030] Horizontal section 100,

[0031] Forming section 200,

[0032] Bending section 300,

[0033] Workbench 1, mounting groove 2, workpiece 3, forming groove 4, arc groove 41,

[0034] Forming mechanism 5, forming head 51, supporting plate 52, first sensor 53,

[0035] Flattening mechanism 6, flattening body 61, flattening arc section 611, flattening horizontal section 612, first flattening head 613, second flattening head 614, second sensor 615, third sensor 616, guide column 617, guide groove 618, first cylinder arm 619, first cylinder 6110, first support assembly 6111, first support rod 61111, first support tube 61112, first support spring 61113, fixing column 62, fixing rod 63, second cylinder arm 64, second cylinder 65,

[0036] The third cylinder arm 7,

[0037] The third cylinder 8,

[0038] Connecting mechanism 9, first connecting rod 91, second connecting rod 92, second supporting assembly 93, second supporting rod 931, second supporting cylinder 932, second supporting spring 933,

[0039] Locking mechanism 10, fixed cylinder 101, fixed groove 102, electromagnet 103, sliding rod 104, magnet slip ring 105, first spring 106, push-pull rod 107, locking rod 108, locking groove 109, third support assembly 1010, third support rod 10101, third support cylinder 10102, third support spring 10103. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be understood by people with general skills in the field of the present invention. The words "including" and similar words used in this article mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0041] The existing molded workpiece includes two horizontal sections 100, and a molded section 200 disposed between the two horizontal sections 100, and also includes a molded section 200 used to connect the molded section 200 and the horizontal section 100, such as Figure 1 As shown, during the forming process of the workpiece, the clamped position thereof may be warped due to the force applied to the front end, causing the formed sheet metal part to be uneven in the horizontal section, thereby reducing the yield rate of the formed part.

[0042] In view of the problems existing in the prior art, an embodiment of the present invention provides an integrated bending device for sheet metal parts, such as Figure 2 As shown, the sheet metal integrated bending device includes a workbench 1, and a mounting groove 2 opened on the workbench 1 and used to move the workpiece 3, a forming groove 4 connected to the mounting groove 2 is opened on the workbench 1, arc grooves 41 are opened on both sides of the opening of the forming groove 4, a forming mechanism 5 is arranged in front of the forming groove 4, a third cylinder arm 7 is fixedly connected to the side wall of the forming mechanism 5, and the free end of the third cylinder arm 7 is connected to the third cylinder 8, and the third cylinder 8 is fixedly arranged on the workbench 1, and a flattening mechanism 6 is arranged on the forming mechanism 5 to complete the flattening of the formed workpiece 3 after the forming mechanism 5 realizes the pressing and forming of the workpiece 3.

[0043] The present invention provides a flattening mechanism 6 on the forming mechanism 5, so that after the forming mechanism 5 completes the bending of the workpiece 3, the flattening mechanism 6 can be used to flatten the horizontal section 100 and the curved section 300 of the formed workpiece 3, thereby flattening the part of the workpiece 3 that is clamped and tilted due to the force on the front end, thereby making the quality of the formed workpiece 3 excellent and improving the yield of the formed workpiece 3.

[0044] In one embodiment, Figure 3 As shown, the forming mechanism 5 includes a forming head 51 and a supporting plate 52, the supporting plate 52 is connected to the third cylinder arm 7, and a first sensor 53 is provided between the forming head 51 and the supporting plate 52, and the first sensor 53 is used for connecting the forming head 51 and the supporting plate 52. In the present invention, the first sensor 53 is a pressure sensor, so that in the process of bending the workpiece 3 by the forming mechanism 5, the pressure on the workpiece 3 can be monitored in real time, so that the bending process of the workpiece 3 can be controlled more accurately.

[0045] In one embodiment, Figure 3 As shown, the flattening mechanism 6 includes two flattening bodies 61 respectively arranged on both sides of the forming head 51, the flattening body 61 contains a flattening arc segment 611 and a flattening horizontal segment 612 which are matched with the arc segment and the horizontal segment of the formed workpiece 3, a fixing column 62 is fixedly connected to the upper end surface of the flattening body 61, a fixing rod 63 is fixedly connected to the side wall of the fixing column 62, a second cylinder arm 64 is fixedly connected to the side wall of the fixing rod 63, the free end of the second cylinder arm 64 is fixedly connected to the driving end of the second cylinder 65, and the second cylinder 65 is fixedly arranged on the upper end surface of the forming head 51.

[0046] The setting of the two flattening bodies 61 in this embodiment can simultaneously flatten the combined structure of the two horizontal sections 100 and the curved section 300 of the molded part. And the setting of the flattening arc section 611 and the flattening horizontal section 612 can better achieve the flattening effect. In addition, the setting of this embodiment can realize intelligent electrical appliance control. Specifically, after the molding mechanism 5 completes the bending of the workpiece 3, the signal is collected by the first sensor 53, and the signal is transmitted to the central processing unit electrically connected to the first sensor 53 for analysis and processing, and the second cylinder 65 is controlled to start. The second cylinder 65 will move backward with the two flattening bodies 61 through the combined structure of the second cylinder arm 64, the fixed rod 63 and the fixed column 62, thereby flattening the horizontal section 100 and the curved section 300. In this embodiment, the flattening force of the horizontal section 100 and the curved section 300 is vertically upward, such as Figure 8 As shown in F1 in .

[0047] In one embodiment, Figure 6As shown, a connecting mechanism 9 is provided on the forming head 51 and the supporting plate 52, and the connecting mechanism 9 includes a second support assembly 93 arranged between the forming head 51 and the supporting plate 52, and a first connecting rod 91 connected to the side wall of the flattening body 61, the free end of the first connecting rod 91 is fixedly connected to the second connecting rod 92, and the second connecting rod 92 is fixedly arranged on the supporting plate 52, wherein the second supporting assembly 93 includes a second support rod 931, a second support tube 932 and a second support spring 933, the second support rod 931 is movably inserted in the second support tube 932, the second support spring 933 is wound and arranged outside the second support rod 931, and the two ends of the second support spring 933 are respectively fixedly connected to the side wall of the second support rod 931 and the outer side wall of the second support tube 932.

[0048] The configuration of this embodiment does not have any configuration as Figure 2 The combination structure of the fixed column 62, the fixed rod 63, the second cylinder arm 64 and the second cylinder 65 shown in the figure, and the mechanical drive is used to replace the above-mentioned combination structure to drive the flattening body 61, which can not only save installation space, but also reduce production costs. Specifically, after the forming head 51 completes the bending of the workpiece 3, as the third cylinder 8 continues to work, it will push the supporting plate 52 to move toward the forming head 51, and the supporting plate 52 will move backward with the flattening body 61 through the first connecting rod 91 and the second connecting rod 92, completing the flattening process of the horizontal section 100 and the curved section 300.

[0049] In this embodiment, the second support assembly 93 can serve as a guide and support for the movement of the support plate 52 relative to the forming head 51, so that the support plate 52 can only move in a single direction, and at the same time, can provide a reset force for the reset movement of the support plate 52.

[0050] When the forming head 51 has not completed the bending of the workpiece 3, in order to ensure that there is no relative movement between the forming head 51 and the supporting plate 52, in one embodiment, as Figure 6 and Figure 7As shown, the sheet metal integrated bending device also includes a locking mechanism 10, which includes a fixed cylinder 101 fixedly connected to the side wall of the supporting plate 52, and the fixed cylinder 101 is movably plugged into a fixed groove 102, and the fixed groove 102 is provided on the forming head 51. The side wall of the fixed groove 102 is fixedly connected to an electromagnet 103, and the electromagnet 103 is fixedly connected to a slide rod 104, and the slide rod 104 is provided with a magnet slip ring 105 on the outside of the slide rod 104. The slide rod 104 is wound with a first spring 106, and the first spring 106 is provided on the outside of the slide rod 104. The two ends of 06 are respectively fixedly connected to the side wall of the sliding rod 104 and the side wall of the magnet slip ring 105, one end of the push-pull rod 107 is hinged on the magnet slip ring 105, the other end of the push-pull rod 107 is hinged on the locking rod 108, the locking rod 108 is movably inserted in the locking groove 109, and the locking groove 109 is opened on the inner wall of the fixed cylinder 101, and one end of the locking rod 108 located outside the locking groove 109 is fixedly connected to the third support assembly 1010, and the other end of the third support assembly 1010 is fixedly connected to the sliding rod 104.

[0051] The setting of the locking mechanism 10 in this embodiment can ensure that there is no relative movement between the forming head 51 and the supporting plate 52 before the forming head 51 completes the bending of the workpiece 3. Specifically, the first sensor 53 detects the pressure provided by the forming head 51 in real time. When the first sensor 53 collects the pressure signal when the forming head 51 completes the bending of the workpiece 3, the central processing unit will receive and process the signal, and at the same time control the electromagnet 103 to be energized to generate magnetism, thereby attracting the magnet slip ring 105 to move on the sliding rod 104 to the side close to the electromagnet 103. With the movement of the magnet slip ring 105, the locking rod 108 will be pulled to move out of the locking groove 109 through the push-pull rod 107. When the locking rod 108 is completely moved out of the locking groove 109, the supporting plate 52 can move relative to the forming head 51.

[0052] exist Figure 7 In the example, it can be seen that there are multiple locking grooves 109, and they are arranged on the same horizontal line. The purpose of this is to achieve the re-locking of the support plate 52 and the forming head 51. Specifically, when the support plate 52 and the forming head 51 need to be re-locked, the power supply of the electromagnet 103 is disconnected. At this time, the magnet slip ring 105 performs a reset movement under the action of the first spring 106, thereby pushing the locking rod 108 to move into another locking groove 109 through the push-pull rod 107. At the same time, the third support assembly 1010 also provides a thrust to push the locking rod 108 into another locking groove 109. In this way, under the push of the two forces, the locking rod 108 can accurately enter the other locking groove 109.

[0053] In order to ensure that the locking rod 108 can accurately enter the other locking groove 109;

[0054] In one example, the end of the locking rod 108 close to the locking groove 109 is set to a conical structure, such as Figure 7 As shown, this ensures that the locking rod 108 can accurately enter the other locking groove 109;

[0055] In another example, two groups of locking grooves 109 are provided, and a plurality of locking grooves 109 are provided in each of the two groups of locking grooves 109. There is a gap between two adjacent locking grooves 109, and the size of the gap is less than 0.5 mm. In this way, the distance between two adjacent locking grooves 109 can be ignored, thereby ensuring that the locking rod 108 can accurately enter the other locking groove 109.

[0056] In one embodiment, the third support assembly 1010 includes a third support rod 10101, a third support tube 10102 and a third support spring 10103. The third support rod 10101 is movably inserted into the third support tube 10102, and the third support spring 10103 is wound outside the third support rod 10101. The two ends of the third support spring 10103 are respectively fixedly connected to the side wall of the third support rod 10101 and the outer side wall of the third support tube 10102. In this embodiment, the setting of the third support assembly 1010 can guide the movement of the locking rod 108, so that the locking rod 108 can only move in the vertical direction, such as Figure 7 As shown, at the same time, a restoring force can be provided for the restoring movement of the locking lever 108 .

[0057] In one embodiment, Figure 4 As shown, the flattening body 61 includes a first flattening head 613 and a second flattening head 614, the second flattening head 614 is fixedly provided with a first cylinder 6110, the driving end of the first cylinder 6110 is connected with a first cylinder arm 619, the free end of the first cylinder arm 619 is fixedly connected to a guide column 617, the guide column 617 is movably inserted in a guide groove 618, the guide groove 618 is provided on the second flattening head 614, one end of the guide column 617 outside the guide groove 618 is fixedly connected to the first flattening head 613, the arc section of the first flattening head 613 is provided with a second sensor 615, and the horizontal section of the first flattening head 613 is provided with a third sensor 616.

[0058] The arrangement of this embodiment can provide the following during the process of flattening the combined structure of the horizontal section 100 and the curved section 300: Fig. 9The flattening force in the F2 direction is applied. The flattening body 61 is reasonably designed, and the horizontal section 100 and the curved section 300 are both subjected to the following forces: Figure 8 Only after the force in the F1 direction is applied, the horizontal section 100 and the curved section 300 will be subjected to the flattening force in the F2 direction. Specifically, only when the second sensor 615 and the third sensor 616 simultaneously collect pressure signals, the second cylinder 65 will be activated through the central processor, and the operation of the second cylinder 65 will push the guide column 617 to move rightward through the second cylinder arm 64. The rightward movement of the guide column 617 will push the flattening body 61 along the F2 direction to apply a pressing force to the combined structure of the horizontal section 100 and the curved section 300, so that the curved section 300 can be more closely fitted with the arc groove 41, so that the appearance of the bent workpiece 3 is smoother and the quality is higher.

[0059] In one embodiment, Figure 5 As shown, the flattening body 61 also includes a first support assembly 6111, the two ends of which are respectively fixedly connected to the side wall of the guide column 617 and the side wall of the guide groove 618, the first support assembly 6111 includes a first support rod 61111, a first support cylinder 61112 and a first support spring 61113, the first support rod 61111 is movably inserted in the first support cylinder 61112, the first support spring 61113 is wound outside the first support rod 61111, and the two ends of the first support spring 61113 are respectively fixedly connected to the side wall of the first support rod 61111 and the outer side wall of the first support cylinder 61112. In this example, the setting of the flattening body 61 can not only guide the movement of the first flattening head 613, so that the first flattening head 613 can only move in the direction of F2, but also provide a reset force for the reset movement of the first flattening head 613.

[0060] In view of the problems existing in the prior art, an embodiment of the present invention further provides a sheet metal integrated bending method, wherein the sheet metal integrated bending device is used to bend the sheet metal. Fig.10 As shown, the method comprises the following steps:

[0061] S1: Place the workpiece 3 in the mounting groove 2 and place it right in front of the forming groove 4;

[0062] S2: driving the forming mechanism 5 to move forward, squeezing the workpiece 3 into the forming groove 4 to complete the bending of the workpiece 3;

[0063] S3: After the bending is completed, the flattening mechanism 6 flattens the arc section and the horizontal section of the formed workpiece 3.

[0064] The beneficial effects of the present invention are as follows:

[0065] The present invention provides a flattening mechanism 6 on the forming mechanism 5, so that after the forming mechanism 5 completes the bending of the workpiece 3, the flattening mechanism 6 can be used to flatten the horizontal section and the arc section of the formed workpiece 3, thereby flattening the part of the workpiece 3 that is clamped and tilted due to the force on the front end, thereby making the quality of the formed workpiece 3 excellent and improving the yield of the formed workpiece 3.

[0066] Although the embodiments of the present invention are described in detail above, it is obvious to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations are within the scope and spirit of the present invention as described in the claims. Moreover, the present invention described herein may have other embodiments and may be implemented or realized in a variety of ways.

Claims

1. A sheet metal integrated bending device, characterized in that: The invention comprises a workbench (1), and a mounting groove (2) provided on the workbench (1) and used for moving a workpiece (3); a molding groove (4) connected to the mounting groove (2) is provided on the workbench (1); arc grooves (41) are provided on both sides of the opening of the molding groove (4); a molding mechanism (5) is arranged directly in front of the molding groove (4); a third cylinder arm (7) is fixedly connected to the side wall of the molding mechanism (5); the free end of the third cylinder arm (7) is connected to a third cylinder (8); the third cylinder (8) is fixedly arranged on the workbench (1); and a flattening mechanism (6) is arranged on the molding mechanism (5) so as to flatten the molded workpiece (3) after the molding mechanism (5) realizes the pressing and forming of the workpiece (3).

2. The integrated sheet metal bending device according to claim 1, characterized in that: The molding mechanism (5) comprises a molding head (51) and a supporting plate (52), wherein the supporting plate (52) is connected to the third cylinder arm (7), and a first sensor (53) is provided between the molding head (51) and the supporting plate (52), wherein the first sensor (53) is used for connecting the molding head (51) and the supporting plate (52).

3. The integrated sheet metal bending device according to claim 2, characterized in that: The flattening mechanism (6) comprises two flattening bodies (61) respectively arranged on both sides of the forming head (51), the flattening body (61) comprising a flattening arc segment (611) and a flattening horizontal segment (612) arranged to match the arc segment and the horizontal segment of the formed workpiece (3), a fixing column (62) is fixedly connected to the upper end surface of the flattening body (61), a fixing rod (63) is fixedly connected to the side wall of the fixing column (62), a second cylinder arm (64) is fixedly connected to the side wall of the fixing rod (63), a free end of the second cylinder arm (64) is fixedly connected to the driving end of a second cylinder (65), and the second cylinder (65) is fixedly arranged on the upper end surface of the forming head (51).

4. The integrated sheet metal bending device according to claim 2, characterized in that: A connecting mechanism (9) is provided on the forming head (51) and the supporting plate (52), and the connecting mechanism (9) includes a second supporting assembly (93) arranged between the forming head (51) and the supporting plate (52), and a first connecting rod (91) connected to the side wall of the flattening body (61), the free end of the first connecting rod (91) is fixedly connected to the second connecting rod (92), and the second connecting rod (92) is fixedly arranged on the supporting plate (52), wherein the second supporting assembly (93) includes a second supporting rod (931), a second supporting tube (932) and a second supporting spring (933), the second supporting rod (931) is movably inserted into the second supporting tube (932), the second supporting spring (933) is wound around the outside of the second supporting rod (931), and the two ends of the second supporting spring (933) are respectively fixedly connected to the side wall of the second supporting rod (931) and the outer side wall of the second supporting tube (932).

5. The integrated sheet metal bending device according to claim 4, characterized in that: The invention also comprises a locking mechanism (10), wherein the locking mechanism (10) comprises a fixing cylinder (101) fixedly connected to the side wall of the supporting plate (52), the fixing cylinder (101) being movably plugged into a fixing groove (102), the fixing groove (102) being provided on the forming head (51), the side wall of the fixing groove (102) being fixedly connected to an electromagnet (103), the electromagnet (103) being fixedly connected to a sliding rod (104), the sliding rod (104) being provided with a magnet slip ring (105) on its outer sliding sleeve, the sliding rod (104) being provided with a first spring (106) wound around its outer side, and both ends of the first spring (106) being provided with a first spring (106) on its inner side. They are respectively fixedly connected to the side wall of the slide bar (104) and the side wall of the magnet slip ring (105); one end of a push-pull rod (107) is hinged on the magnet slip ring (105); the other end of the push-pull rod (107) is hinged on a locking rod (108); the locking rod (108) is movably inserted into a locking groove (109); the locking groove (109) is provided on the inner wall of the fixed cylinder (101); one end of the locking rod (108) located outside the locking groove (109) is fixedly connected to a third support assembly (1010); the other end of the third support assembly (1010) is fixedly connected to the slide bar (104).

6. The integrated sheet metal bending device according to claim 5, characterized in that: The third support assembly (1010) includes a third support rod (10101), a third support tube (10102) and a third support spring (10103); the third support rod (10101) is movably inserted into the third support tube (10102); the third support spring (10103) is wound around the outside of the third support rod (10101); and the two ends of the third support spring (10103) are respectively fixedly connected to the side wall of the third support rod (10101) and the outer side wall of the third support tube (10102).

7. The integrated sheet metal bending device according to claim 5, characterized in that: The locking grooves (109) are provided in two groups, and a plurality of locking grooves (109) are provided in each of the two groups of locking grooves (109). There is a gap between two adjacent locking grooves (109), and the size of the gap is less than 0.5 mm.

8. The integrated sheet metal bending device according to claim 2, characterized in that: The flattening body (61) comprises a first flattening head (613) and a second flattening head (614); a first cylinder (6110) is fixedly arranged on the second flattening head (614); a first cylinder arm (619) is connected to the driving end of the first cylinder (6110); a free end of the first cylinder arm (619) is fixedly connected to a guide column (617); the guide column (617) is movably inserted into a guide groove (618); the guide groove (618) is provided on the second flattening head (614); one end of the guide column (617) outside the guide groove (618) is fixedly connected to the first flattening head (613); a second sensor (615) is provided on the arc section of the first flattening head (613); and a third sensor (616) is provided on the horizontal section of the first flattening head (613).

9. The integrated sheet metal bending device according to claim 8, characterized in that: The flattening body (61) also includes a first support assembly (6111), the two ends of which are respectively fixedly connected to the side wall of the guide column (617) and the side wall of the guide groove (618), the first support assembly (6111) includes a first support rod (61111), a first support tube (61112) and a first support spring (61113), the first support rod (61111) is movably inserted in the first support tube (61112), the first support spring (61113) is wound around the outside of the first support rod (61111), and the two ends of the first support spring (61113) are respectively fixedly connected to the side wall of the first support rod (61111) and the outer side wall of the first support tube (61112).

10. A sheet metal integrated bending method, characterized in that: The sheet metal part is bent by using the sheet metal part integrated bending device as claimed in any one of claims 1 to 9, and the method comprises the following steps: S1: Place the workpiece (3) in the mounting groove (2) and place it in front of the molding groove (4); S2: driving the forming mechanism (5) to move forward, squeezing the workpiece (3) into the forming groove (4) to complete the bending of the workpiece (3); S3: After the bending is completed, the flattening mechanism (6) flattens the arc section and the horizontal section of the formed workpiece (3).

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