Spring piece bending forming device

Abstract

A spring piece bending forming device comprises a machine table and is characterized in that the machine table is further provided with a mold core, the mold core is arranged on the machine table and comprises a first curve surface with a curve outline and corner ends located at the two ends of the first curve surface, and a second curve surface with a curve outline and corner ends located at the two ends of the first curve surface; the forming mechanism is arranged around the mold core and comprises a first forming unit and a second forming unit; and the driving device is in transmission connection with the forming mechanism and sequentially drives the first forming unit and the second forming unit to complete the pressing forming action according to a set sequence. Bending forming machining of the spring piece can be completed through the action of one working procedure of the device, transition smoothness can be achieved at the corner of the leg part, forming of the barb claw is faster, the shape and the radian can be more standard under the limit of the outline of the bent part, the reject ratio is reduced, and the machining production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spring sheet processing and forming, in particular to a spring sheet bending and forming device. Background Art

[0002] A spring sheet is an elastic element used to generate elastic force through elastic deformation. A special-shaped spring sheet is an elastic component with a unique shape. Compared with conventional elastic components, it can meet special elastic force requirements. However, its production and processing are more complicated.

[0003] like Figure 1 As shown, it is a claw spring sheet, which is made of stainless steel. The main body of the claw spring is in the shape of "3" and has a reverse hook formed at the end. In the conventional processing process, since a reverse hook is required at the end of the spring sheet, the plate is usually stamped and bent into a "3" shape first, and then the legs at both ends are manually bent to form the reverse hooks.

[0004] Some manufacturers still use manual or simple equipment to assemble or process. Due to the small radius of the undercut claw, the efficiency is low during manual bending, and defective products are prone to appear. The labor intensity of the operators is high and manual operation has safety hazards. The purpose of this practical technology is to overcome the existing technical problems for this product. Therefore, it is currently necessary to develop a device that can form the claw spring sheet at one time. Utility Model Content

[0005] The purpose of the utility model is to provide a spring sheet bending and forming device. In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A spring sheet bending and forming device includes a machine platform, and the machine platform is also provided with:

[0007] A mold core, the mold core is arranged on the machine platform, and includes a first curved surface provided with a curved profile, and corner ends located at both ends of the first curved surface, and a bending portion protruding and extending toward the outside is formed on the corner end, and the bending portion is provided with an arc profile;

[0008] A molding mechanism, the molding mechanism is arranged around the mold core, and includes

[0009] a first molding unit, the first molding unit being used opposite to the first curved surface to compact and mold the workpiece along the contour of the first curved surface, and

[0010] A second molding unit, the second molding unit includes two units corresponding to the bending portions, respectively, and used to press and mold the workpiece to be molded along the arc contour of the bending portion;

[0011] A driving device is connected to the forming mechanism in a transmission manner, and drives the first forming unit and the second forming unit in a predetermined order to complete the pressing and forming action.

[0012] Furthermore, the first molding unit includes

[0013] A first molding component, the first molding component includes a first base fixedly mounted on the machine table and a first molding knife slidably connected to the first base, a curved surface profile matching the first curved surface is arranged on the end face of the first molding knife, and the first molding knife is transmission-connected to the driving unit so as to reciprocate along a straight line direction toward the first curved surface.

[0014] Furthermore, the first molding unit also includes a second molding component, the second molding component includes two corresponding to the corner ends, and respectively includes a second base fixedly mounted on the machine table and a second molding knife slidably connected to the second base, the second molding knife is transmission-connected to the driving device for reciprocating along a straight line toward the mold core, and the end of the second molding knife is provided with a docking portion adapted to the end contours of both sides of the first curved surface and a protruding portion extending toward the bending portion and located on the outside of the bending portion, the docking portion and the protruding portion define a corner area that defines the bending portion within it.

[0015] Furthermore, the second molding unit includes a third molding assembly, and the third molding assembly includes a third base fixedly mounted on the machine table and a third molding knife slidably connected to the third base, and the upper edge of the end of the third molding knife is located at the lower side of the bending portion, and the driving device is transmission-connected to the third molding knife for driving the third molding knife to reciprocate along a straight line direction toward the bending portion.

[0016] Furthermore, the second molding unit also includes a fourth molding component, and the fourth molding component includes two corresponding to the third molding components, each including a fourth base fixedly mounted on the machine table and a fourth molding knife slidably connected to the fourth base, the driving device is transmission-connected to the fourth molding knife to drive the fourth molding knife to move along a straight line direction toward the bending portion, and a boss corresponding to the arc surface profile of the bending portion is formed at the end of the fourth molding knife, and the boss travel path is located at the arc surface profile on the inner side of the bending portion.

[0017] Furthermore, the mold core includes

[0018] A fixing member, the fixing member is fixedly mounted on the machine platform, and the first curved surface is formed on a side surface of the fixing member;

[0019] The movable part includes two movable parts respectively located on both sides of the fixed part, and movably connected to the machine along the vertical direction of the fixed part. A docking surface corresponding to the end of the first curved surface on the fixed part is formed on one side wall of the movable part, and the bending portion is formed on the end of the movable part docking surface away from the first curved surface.

[0020] Furthermore, arc-shaped protrusions are formed on both ends of the first curved surface on the fixing member, and the arc-shaped protrusions protrude toward the movable member.

[0021] Furthermore, the forming mechanism also includes a rear bending assembly, which is used to bend the two ends of the workpiece to be formed toward the center line direction. The bending assembly includes a fifth base fixedly installed on the machine table, and a bending part is slidably connected to the fifth base along a straight line toward the arc-shaped protrusion. A resistance part with an arc surface is formed on the end of the bending part facing the arc-shaped protrusion. The driving device is transmission-connected to the bending part to drive the bending part to reciprocate along a straight line toward the mold core.

[0022] Furthermore, the driving device includes

[0023] Rotating shafts, the rotating shafts having a number corresponding to all the bases, and being rotatably connected to all the bases respectively;

[0024] A cam, wherein the cam is fixedly mounted on the rotating shaft;

[0025] A butt joint, one end of which is fixedly connected to the forming knife and the bending member, and the other end of which abuts against the curved surface profile of the cam;

[0026] A power output device is simultaneously connected to the rotating shaft to drive the rotating shaft and the cam to rotate, so as to drive the forming knife to move toward the mold core in a predetermined order.

[0027] The beneficial effects produced by the utility model are as follows:

[0028] The embodiment of the utility model provides a spring sheet bending and forming device, which can bend and form the plate along the contour shape of the mold core through multiple forming components and bending components, so that the hook claw and the leg of the spring sheet can be quickly formed. The bending and forming processing of the spring sheet can be completed through the action of one process of the device, and the corners of the leg can be over-rounded, and the forming of the hook claw is faster, and the shape and curvature can be more standard under the contour restriction of the bending part, thereby reducing the occurrence of defective rate and improving processing production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of the spring sheet that needs to be processed in the utility model.

[0030] Figure 2 It is a flow chart of the utility model.

[0031] Figure 3 It is a front view of the spring sheet being formed when the molding mechanism and the mold core are pressed against each other in the utility model.

[0032] Figure 4 It is a front view of the molding mechanism and the mold core in the utility model in a state of being separated from each other.

[0033] Figure 5 It is a structural schematic diagram of the second molding component in the utility model.

[0034] Figure 6 It is a structural schematic diagram of the fourth molding component in the utility model.

[0035] Figure 7 It is a structural schematic diagram of the bending component in the utility model.

[0036] Figure 8 It is a structural schematic diagram of the mold core of the utility model.

[0037] Fig. 9 It is a schematic diagram of the explosion structure of the mold core in the utility model.

[0038] Fig.10 It is a structural schematic diagram of the first molding component in the utility model.

[0039] Fig.11 The utility model is a flow chart of the bending and forming of the spring sheet.

[0040] In the figure: machine 1; mold core 10; first curved surface 11; corner end 12; bending part 13; forming mechanism 20; first forming unit 21; second forming unit 22; driving device 23; first forming assembly 211; first base 2111; first forming knife 2112; second forming assembly 212; second base 2121; second forming knife 2122; docking part 2123; raised part 2124; corner area 2125; third forming assembly 221 ; The third base-2211; The third forming knife-2212; The fourth forming assembly-222; The fourth base-2221; The fourth forming knife-2222; The boss-2223; The fixing part-14; The movable part-15; The arc-shaped protrusion-141; The bending assembly-24; The fifth base-241; The bending part-242; The resistance part-243; The rotating shaft-231; The cam-232; The docking part-233; The driving gear-235; The pinion-236; The leg-01; The inverted hook claw-02; The feeding device-30. DETAILED DESCRIPTION

[0041] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0042] The utility model provides a spring sheet bending and forming device for Figure 1 The claw spring piece shown in the figure is bent and formed. The bending and forming device provided in this embodiment can directly process the plate to be processed into the claw spring piece, avoiding manual bending again, thereby improving production efficiency and ensuring the yield rate of the spring piece. The process of the bending process performed by the forming device is as follows Fig.11 As shown, the plate to be processed is pre-formed with a roughly wavy curve on the upper part and inverted hooks 02 at both ends, and the legs 01 at both ends of the spring are bent toward the center line again to complete the processing of the spring sheet.

[0043] like Figure 2-10As shown, a spring sheet bending and forming device provided in this embodiment includes a machine table 1, on which a mold core 10, a forming mechanism 20 and a driving device 23 for driving the forming mechanism 20 are also arranged; wherein the mold core 10 is arranged on the machine table 1, and includes a first curved surface 11 with a curved profile, corner ends 12 located at both ends of the first curved surface 11, and a bending portion 13 protruding and extending toward the outside direction is formed on the corner end 12, and the bending portion 13 is provided with an arc-shaped profile; the forming mechanism 20 is arranged around the mold core 10, and includes a first forming unit 21 and a second forming unit 22, the first forming unit 21 is used relative to the first curved surface 11 to press and form the workpiece to be formed along the profile of the first curved surface 11, and the second forming unit includes two units corresponding to the bending portion 13 respectively, which are used to press and form the workpiece to be formed along the arc profile of the bending portion 13; the driving device 23 is transmission-connected with the forming mechanism 20, and drives the first forming unit 21 and the second forming unit 22 in sequence in a predetermined order to complete the pressing and forming action.

[0044] During the bending process of the spring sheet, the feeding device 30 transports the sheet to be processed toward the mold core, the first molding unit 21 punches the sheet to be processed toward the first curved surface 11 of the mold core 10, and bends the sheet to be processed along the contour of the first curved surface 11. The second molding unit 22, driven by the driving device 23, moves toward the mold core 10, thereby pushing the sheet to be processed toward the bending portion 13 and bending it along the arc contour of the bending portion 13, thereby bending the two ends of the spring sheet along the arc contour of the bending portion 13 into inverted hooks 02.

[0045] By providing a bending portion 13 on the mold core 10, the plate to be processed is pressed toward the bending portion 13 in the second molding unit 22 to form the hook claw 02 of the spring sheet, thereby reducing manual intervention, reducing the defective rate of products, and improving production efficiency.

[0046] like Figure 3-7 As shown, the first molding unit 21 includes a first molding component 211, which is used to bend and mold the plate to be processed along the first curved surface 11 of the mold core 10. The first molding component 211 includes a first base 2111 fixedly mounted on the machine table 1 and a first molding knife 2112 slidably connected to the first base 2111. A curved surface profile matching the first curved surface 11 is arranged on the end face of the first molding knife 2112, and the first molding knife 2112 is connected to the driving unit for reciprocating movement along a straight line toward the first curved surface 11.

[0047] The plate to be processed moves toward the first curved surface 11 under the push of the first forming knife 2112, and is pressed by the first forming knife 2112 and the first curved surface 11, and then is bent along the contour of the first curved surface 11, so as to be processed into Figure 1 The shape of the upper side of the spring.

[0048] At the same time, the first molding unit 21 also includes a second molding component 212, which is used to bend the two ends of the plate to be processed downward along the corner end 12, wherein the second molding component 212 includes two corresponding to the corner ends 12, and respectively includes a second base 2121 fixedly mounted on the machine table 1 and a second molding knife 2122 slidably connected to the second base 2121, the second molding knife 2122 is transmission-connected to the driving device 23, and is used to move back and forth in a straight line toward the mold core 10, and the end of the second molding knife 2122 is provided with a docking portion 2123 adapted to the end contours of the first curved surface 11 on both sides, and a protruding portion 2124 extending toward the bending portion 13 and located on the outside of the bending portion 13, the docking portion 2123 and the protruding portion 2124 define a corner area 2125 that defines the bending portion 13 inside it.

[0049] During the bending process of the two ends of the plate to be processed, the second forming knife 2122 is driven by the driving device 23 to move toward the mold core 10, and the plate to be processed, which has been bent along the first curved surface 11, is pressed toward the corner end 12 and the bending portion 13. Figure 5 As shown, the docking portion 2123 presses the end section of the sheet to be processed and the end of the first curved surface 11 against each other and bends them into shape. At this time, since the protrusion 2124 is located on the outside of the bending portion 13, the bending portion 13 can be located within the corner area 2125 between the docking portion 2123 and the protrusion 2124. When the second forming knife 2122 bends the sheet to be processed along the corner end 12 of the mold core 10 and the contour of the bending portion 13, the end of the sheet can be bent along the contour of the bending portion 13 toward the inner side of the bending portion 13, so that the general contour of the inverted hook 02 in the sheet can be bent into shape.

[0050] like Figure 3-4 As shown, the second molding unit 22 includes a third molding assembly 221, and the third molding assembly 221 includes a third base 2211 fixedly mounted on the machine table 1 and a third molding knife 2212 slidably connected to the third base 2211, and the upper edge of the end of the third molding knife 2212 is located at the lower side of the bending portion 13, and the driving device 23 is transmission-connected to the third molding knife 2212 for driving the third molding knife 2212 to move back and forth along a straight line direction toward the bending portion 13.

[0051] The driving device 23 drives the third forming knife 2212 toward the bending portion 13, so that the upper edge of the third forming knife 2212 is located at the lower side of the bending portion 13. Therefore, when the third forming knife 2212 continues to push the end of the sheet to be processed that has been bent along the bending portion 13 toward the bending portion 13, the end of the sheet to be processed can be further bent and formed along the curved surface contour on the lower side of the eye bending portion 13, thereby increasing the arc curvature of the spring sheet inverted hook 02.

[0052] like Figure 3-4 As shown in FIG. 6 , a fourth urban-rural component 222 is arranged on the second molding unit 22, which is used to further bend the inverted hook 02 of the spring sheet that is further bent along the bending portion 13 by the third molding knife 2212 along the contour of the bending portion 13. Specifically, the end of the inverted hook 02 is bent along the arc contour on the inner side of the bending portion 13, so that the inverted hook 02 is roughly circular. The fourth urban and rural component 222 includes two corresponding to the third molding component 221, each including a fourth base 2221 fixedly mounted on the machine table and a fourth molding knife 2222 slidably connected to the fourth base 2221, and the driving device 23 is transmission-connected to the fourth molding knife 2222 to drive the fourth molding knife 2222 to move along a straight line direction toward the bending portion 13, and a boss 2223 corresponding to the arc profile of the bending portion 13 is formed at the end of the fourth molding knife 2222, and the travel path of the boss 2223 is located at the arc profile on the inner side of the bending portion 13.

[0053] During the process of bending and forming the end of the inverted hook 02, the fourth forming knife 2222 moves toward the bending portion 13 under the drive of the driving device 23, so that the boss 2223 with the arc surface contour pushes the end of the inverted hook 02 to move toward the inner side of the bending portion 13, so that the end of the inverted hook 02 and the arc contour on the inner side of the bending portion 13 are in close contact with each other, thereby completing the bending and forming.

[0054] Through the spring sheet bending and forming device provided in this embodiment, the inverted hook 02 of the spring sheet can be bent and formed through the third forming component 221 and the fourth urban and rural component 222, and the shape of the inverted hook 02 meets the requirements, and the curvature will not be too small or too large, thereby improving the yield rate.

[0055] The mold core 10 provided in this embodiment is set to be split, which can bend the plate that has been formed with the undercut claw 02 again, so that the two legs 01 of the spring sheet are folded toward the center line direction, such as Figure 8-9As shown, the mold core 10 includes a fixed part 14 and a movable part 15, wherein the fixed part 14 is fixedly installed on the machine 1, the first curved surface 11 is formed on one side of the fixed part 14, and arc-shaped protrusions 141 are formed on the fixed part 14 at both ends of the first curved surface 11, and the arc-shaped protrusions 141 protrude toward the movable part 15; the movable part 15 includes two parts respectively located on both sides of the fixed part 14, and movably connected to the machine 1 along the vertical direction of the fixed part 14, a docking surface corresponding to the end of the first curved surface 11 on the fixed part 14 is formed on one side wall of the movable part 15, and the bending part 13 is formed on the end of the docking surface of the movable part 15 away from the first curved surface 11.

[0056] At the same time, if Figure 3-4 As shown in Figures 7 and 8, the forming mechanism 20 also includes a bending assembly 24 for bending the two ends of the workpiece to be formed toward the center line. The bending assembly 24 includes a fifth base 241 fixedly mounted on the machine table 1. A bending member 242 is slidably connected to the fifth base 241 along a straight line toward the arc-shaped protrusion 141. A resistance portion 243 with an arc surface is formed on the end of the bending member 242 facing the arc-shaped protrusion 141. The driving device 23 is transmission-connected to the bending member 242 for driving the bending member 242 to reciprocate along a straight line toward the mold core 10.

[0057] When the leg 01 of the spring sheet is bent and formed, the two movable parts 15 move toward the machine table 1 so as to sink into the machine table 1. In this embodiment, a cylinder connected to the movable part 15 can be fixed on the machine table 1. The movable part 15 can move back and forth in a straight line under the drive of the cylinder. When the cylinder pushes the movable part 15 out, the movable part 15 and the fixed part 14 are connected to each other to form a completed mold core 10, which is used to bend and form the inverted hook 02 of the sheet to be processed. Driven by the cylinder, the movable part 15 withdraws toward the machine table 1, so that only the fixed part 14 is left on the machine table 1. At this time, it is used to fold the leg 01 of the spring sheet toward the center line.

[0058] When the movable part 15 withdraws toward the machine 1, the bending part 242 of the bending assembly 24 moves toward the fixed part 14 under the drive of the driving device 23, so that the contact part 243 and the end of the bent plate can be flipped toward the center line direction of the fixed part 14 along the arc protrusion 141 on the fixed part 14, so that the leg 01 and the upper corner of the spring sheet have an arc transition, and the arc surface of the contact part 243 can slide along the length direction of the leg 01 during the low-pressure pushing of the spring sheet leg 01, thereby making it more convenient to bend the leg 01 and avoid crushing injuries during the low-pressure pushing of the leg 01.

[0059] Embodiment 1

[0060] The molding device in this embodiment is the same as the above structure. In this embodiment, a specific structural example is given for the structure of the driving device 23. In this embodiment, the structure of the first molding component 211 is taken as an example, and the structures on other molding components and the bending component 24 are substantially the same as the first molding component 211.

[0061] like Fig.10 As shown, the driving device 23 includes a rotating shaft 231, a cam 232, a docking piece 233 and a power output device, wherein the rotating shaft 231 includes a number corresponding to all the bases and is rotatably connected to all the bases respectively; the cam 232 is fixedly installed on the rotating shaft 231; one end of the docking piece 233 is fixedly connected to the forming knife and the bending piece 242, and the other end abuts against the curved surface profile of the cam 232; the power output device is simultaneously connected to the rotating shaft 231 to drive the rotating shaft 231 and the cam 232 to rotate, so as to drive the forming knife to move toward the core 10 in a predetermined order.

[0062] In this embodiment, the power output device can be a motor, which drives all the rotating shafts 231 to rotate through a gear system. In this embodiment, a driving gear 235 is connected to the rotating connection on the machine 1. The motor is fixedly installed on the machine 1, and its output shaft is connected to the driving gear 235 for driving the driving gear 235 to rotate along the axis. The rotating shaft 231 is respectively fixedly connected with a small gear 236 that meshes with the driving gear 235. In the process of the motor driving the driving gear 235 to rotate, the rotating shaft 231 is driven to rotate by the small gear 236, so that the cam 232 drives the docking piece 233 to move along the predetermined contour of the cam 232, so that the forming knife can reciprocate along the base toward the core 10.

[0063] It is worth mentioning that the docking piece 233 can interfere with the circumferential contour of the cam 232, so that during the rotation of the cam 232, the docking piece 233 can be pushed, thereby realizing the movement of the forming piece or the bending piece 242 along a straight line. During this process, the forming knife and the bending piece 242 are provided with elastic supports toward the direction of the cam 232. Under the action of the elastic force, the docking piece 233 and the cam 232 contours can maintain a low pressure state relative to each other, thereby ensuring that the forming knife and the bending piece 242 can achieve reciprocating movement along a straight line under the rotation of the cam 232. As for the setting of the elastic support, any one of the existing technologies can be adopted, that is, a spring is installed on the base to push the forming knife or the bending piece 242 toward the direction of the cam 232.

[0064] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A spring sheet bending and forming device, comprising a machine, characterized in that: The machine is also provided with: A mold core, the mold core is arranged on the machine platform, and includes a first curved surface provided with a curved profile, and corner ends located at both ends of the first curved surface, and a bending portion protruding and extending toward the outside is formed on the corner end, and the bending portion is provided with an arc profile; A molding mechanism, the molding mechanism is arranged around the mold core, and includes a first molding unit, the first molding unit being used opposite to the first curved surface to compact and mold the workpiece along the contour of the first curved surface, and A second molding unit, the second molding unit includes two units corresponding to the bending portions, respectively, and used to press and mold the workpiece to be molded along the arc contour of the bending portion; A driving device is connected to the forming mechanism in a transmission manner, and drives the first forming unit and the second forming unit in a predetermined order to complete the pressing and forming action.

2. A spring sheet bending and forming device according to claim 1, characterized in that: The first molding unit includes A first molding component, the first molding component includes a first base fixedly mounted on the machine table and a first molding knife slidably connected to the first base, a curved surface profile matching the first curved surface is arranged on the end face of the first molding knife, and the first molding knife is transmission-connected to the driving unit so as to reciprocate along a straight line direction toward the first curved surface.

3. A spring sheet bending and forming device according to claim 2, characterized in that: The first molding unit also includes a second molding component, which includes two second molding components corresponding to the corner ends, and respectively includes a second base fixedly mounted on the machine table and a second molding knife slidably connected to the second base. The second molding knife is transmission-connected to the driving device for reciprocating along a straight line toward the mold core. The end of the second molding knife is provided with a docking portion adapted to the end contours of both sides of the first curved surface and a protruding portion extending toward the bending portion and located on the outside of the bending portion. The docking portion and the protruding portion define a corner area that defines the bending portion inside it.

4. A spring sheet bending and forming device according to claim 3, characterized in that: The second molding unit includes a third molding assembly, and the third molding assembly includes a third base fixedly mounted on the machine table and a third molding knife slidably connected to the third base, the upper edge of the end of the third molding knife is located at the lower side of the bending portion, and the driving device is transmission-connected to the third molding knife for driving the third molding knife to reciprocate along a straight line direction toward the bending portion.

5. A spring sheet bending and forming device according to claim 4, characterized in that: The second molding unit also includes a fourth molding component, and the fourth molding component includes two corresponding to the third molding components, each including a fourth base fixedly mounted on the machine table and a fourth molding knife slidably connected to the fourth base, the driving device is transmission-connected to the fourth molding knife to drive the fourth molding knife to move along a straight line direction toward the bending portion, and a boss corresponding to the arc profile of the bending portion is formed at the end of the fourth molding knife, and the boss travel path is located at the arc profile on the inner side of the bending portion.

6. A spring sheet bending and forming device according to claim 5, characterized in that: The mold core includes A fixing member, the fixing member is fixedly mounted on the machine platform, and the first curved surface is formed on a side surface of the fixing member; The movable part includes two movable parts respectively located on both sides of the fixed part, and movably connected to the machine along the vertical direction of the fixed part. A docking surface corresponding to the end of the first curved surface on the fixed part is formed on one side wall of the movable part, and the bending portion is formed on the end of the movable part docking surface away from the first curved surface.

7. A spring sheet bending and forming device according to claim 6, characterized in that: Arc-shaped protrusions are formed on the fixing member at both ends of the first curved surface, and the arc-shaped protrusions protrude toward the movable member.

8. A spring sheet bending and forming device according to claim 7, characterized in that: The forming mechanism also includes a rear bending assembly, which is used to bend the two ends of the workpiece to be formed toward the center line direction. The bending assembly includes a fifth base fixedly installed on the machine table, and a bending member is slidably connected to the fifth base along a straight line toward the arc-shaped protrusion. A resistance portion with an arc surface is formed on the end of the bending member facing the arc-shaped protrusion. The driving device is transmission-connected to the bending member to drive the bending member to reciprocate along a straight line toward the mold core.

9. A spring sheet bending and forming device according to claim 8, characterized in that: The drive device includes Rotating shafts, the rotating shafts having a number corresponding to all the bases, and being rotatably connected to all the bases respectively; A cam, wherein the cam is fixedly mounted on the rotating shaft; A butt joint, one end of which is fixedly connected to the forming knife and the bending member, and the other end of which abuts against the curved surface profile of the cam; A power output device is simultaneously connected to the rotating shaft to drive the rotating shaft and the cam to rotate, so as to drive the forming knife to move toward the mold core in a predetermined order.

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