Metal wrap angle forming mold equipment and forming process

Abstract

The invention discloses mold equipment for forming a metal wrap angle. The mold equipment comprises a wrap angle forming module, a clamping mechanism, a synchronous feeding and discharging mechanism, a table top and a stamping module, the stamping module is fixedly mounted on the table board; the wrap angle forming module comprises an external positioning ring, a wrap angle metal shell outer sleeve, a metal shell mold lower bottom ring, a core, an edge wrapping metal shell positioning ring, a metal blank, a middle sleeve positioning ring and an edge forming middle sleeve. The external positioning ring is clamped in a limiting buckle on the table top, the wrap angle metal shell outer sleeve is placed on an inner ring of the external positioning ring, and the lower face of the wrap angle metal shell outer sleeve is attached to the table top; when in use, the wrap angle forming module adopts a form of combining a plurality of pure metal circular rings to achieve a forming effect, the manufacturing difficulty of the independent circular rings is greatly reduced, uniform blanking can be performed through laser cutting, and then a fit clearance is subjected to finish machining through a lathe, so that the mold manufacturing time is shortened, the waste of raw materials is greatly reduced, and the production cost is reduced. And the method can be efficiently and quickly put into a production link.

Description

Technical Field

[0001] The invention relates to the technical field of metal forming, and in particular to a die device and a forming process for metal corner forming. Background Art

[0002] As industrial manufacturing continues to increase the precision and performance requirements of parts, traditional metal processing methods can no longer meet market demand. Metal angle structures are widely used in thermal power, petroleum, chemical, metal smelting, valves, automobiles, construction, electronics and other industries due to their good strength and aesthetics. However, the forming process of metal angles is complicated and requires high-precision mold equipment and advanced forming technology to ensure product quality.

[0003] The traditional metal corner forming method requires the processing of an integral mold, which is very time-consuming and labor-intensive. The molding of the mold becomes an obstacle to stamping, which reduces the overall efficiency and increases the cost of processing. In addition, the existing stamping forming method also requires manual opening of the mold after forming and taking out the formed corner, which is time-consuming and labor-intensive. Summary of the invention

[0004] The invention discloses a metal corner forming mold device, which can effectively solve the problems in the background technology. When the invention is in use, the corner forming module adopts the form of a combination of multiple pure metal rings to achieve the forming effect, and the difficulty of making these independent rings is greatly reduced. They can be uniformly cut by laser cutting, and then finely processed by a lathe to match the gap, which shortens the mold making time and greatly reduces the waste of raw materials. The invention is also provided with a synchronous loading and unloading mechanism. After a corner forming process is completed, the formed metal blank can be taken out synchronously and the metal blank in the preparation area before forming can be sucked up, and the formed metal blank can be placed in the discharge area synchronously and the metal blank sucked up in the preparation area can be placed in the forming module to wait for the next stamping.

[0005] A metal corner forming die device comprises a corner forming die set, a clamping mechanism, a synchronous loading and unloading mechanism, a table, and a stamping die set; the stamping die set is fixedly mounted on the table; the corner forming die set comprises: an external positioning ring, a corner metal shell outer sleeve, a metal shell die bottom ring, a core, an edge metal shell positioning ring, a metal blank, a middle sleeve positioning ring, and an edge middle sleeve; the external positioning ring is clamped in a limit buckle on the table, the corner metal shell outer sleeve is placed on the inner ring of the external positioning ring, the bottom of the corner metal shell outer sleeve is fitted with the table, and the metal shell die bottom ring is placed on the inner ring of the corner metal shell outer sleeve , the bottom of the lower bottom ring of the metal shell mold is fitted with the table top, the core is placed in the inner ring of the lower bottom ring of the metal shell mold, the bottom of the core is fitted with the table top, the edge-wrapped metal shell positioning ring is placed in the inner ring of the external positioning ring, the bottom of the edge-wrapped metal shell positioning ring is fitted with the corner metal shell outer sleeve, the metal blank is placed in the inner ring of the external positioning ring, the bottom of the metal blank is fitted with the corner metal shell outer sleeve, the middle sleeve positioning ring is placed in the inner ring of the external positioning ring, the bottom of the middle sleeve positioning ring is fitted with the edge-wrapped metal shell positioning ring, the edge middle sleeve is placed in the inner ring of the external positioning ring, and the bottom of the edge middle sleeve is fitted with the metal blank.

[0006] Preferably, the clamping mechanism includes: a plate I, a clamping jaw, a central slider, a connecting rod, a cylinder I, a suction cup tube I and a bidirectional movable component; the clamping jaw is slidably installed in a slide groove on the plate I, an extension rod is provided on the side of the clamping jaw, the inclined surface below the extension rod is in contact with the round rod on the suction cup tube I, the suction cup tube I is slidably installed in a circular hole on the plate I, a spring is installed on the suction cup tube I, the bottom of the spring is in contact with the plate I, and the top of the spring is in contact with the round rod of the suction cup tube I; one end of the connecting rod is in contact with the clamping jaw, and the other end of the connecting rod is in contact with the central slider, the central slider is slidably installed on the slide rail on the plate I, the central slider is also fixedly connected to the piston rod of the cylinder I, and the cylinder body of the cylinder I is fixedly installed on the plate I.

[0007] Preferably, the bidirectional displacement assembly includes: a support frame, a sliding plate, a horizontal slider I, a screw rod I, a stepper motor I, a vertical slider, a screw rod II, and a stepper motor II; the support frame is fixedly installed on the table top, the sliding plate is slidably installed in the slide groove on the support frame, the horizontal slider I is fixedly installed on the sliding plate, the horizontal slider I is threadedly connected to the screw rod I, both ends of the screw rod I are rotatably installed in the circular hole on the support frame, one end of the screw rod I is connected to the motor shaft of the stepper motor I, and the stepper motor I is fixedly installed on the side of the support frame; the vertical slider is fixedly installed on the flat plate I, the screw rod II is threadedly connected to the vertical slider, both ends of the screw rod II are rotatably installed on the slide rail on the sliding plate, one end of the screw rod II is also connected to the motor shaft of the stepper motor II, and the stepper motor II is fixedly installed on the upper end of the sliding plate.

[0008] Preferably, the synchronous loading and unloading mechanism includes: a screw rod III, a stepper motor III, a support arm, a plate II, and a horizontal slider II; both ends of the screw rod III are rotatably installed in the circular holes on the support frame, the screw rod III is also threadedly connected to one end of the horizontal slider II, the other end of the horizontal slider II is fixedly installed on the plate II, one end of the screw rod III is also connected to the motor shaft of the stepper motor III, and the stepper motor III is fixedly installed at one end of the support frame; one end of the support arm is slidably installed in the slide groove of the support frame, and the other end of the support arm is fixedly installed on the plate II.

[0009] Preferably, the synchronous loading and unloading mechanism also includes: a pressure plate, a suction cup tube II, a limit slider, and a cylinder II; a round hole is provided on the pressure plate, and the round hole is slidably connected to the round rod on the flat plate II, and the suction cup tube II is fixedly installed on the pressure plate. At the same time, the suction cup tube II is slidably connected to the round hole on the flat plate II, and a spring is also installed on the suction cup tube II, and the lower end of the spring is in contact with the flat plate II, and the upper end of the spring is in contact with the pressure plate; the limit slider is slidably installed on the slide rail on the flat plate II, and an inclined surface is provided under the limit slider, the piston rod of the cylinder II is fixedly connected to the limit slider, and the cylinder body of the cylinder II is fixedly installed on the horizontal slider II.

[0010] Preferably, the outer side surface of the lower end of the clamping jaw is arc-shaped and fits in the inner circle of the edge-starting sleeve.

[0011] The beneficial effects of the present invention compared with the prior art are: When the present invention is used, the corner forming module adopts a combination of multiple pure metal rings to achieve the forming effect, and the difficulty of manufacturing these independent rings is greatly reduced. They can be uniformly cut by laser cutting, and then finely processed by lathe to match the gap, which shortens the mold manufacturing time and greatly reduces the waste of raw materials. The present invention is also provided with a synchronous loading and unloading mechanism, which can synchronously take out the formed metal blank and suck up the metal blank in the preparation area before forming after a corner forming process is completed, and can also synchronously place the formed metal blank in the re-discharging area and place the metal blank sucked up in the preparation area in the forming module to wait for the next stamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an isometric view of the overall structure of the present invention.

[0013] Figure 2 It is a side view of the overall structure of the present invention.

[0014] Figure 3 It is an exploded view of the corner forming module of the present invention.

[0015] Figure 4 It is a cross-sectional view of the corner forming module of the present invention.

[0016] Figure 5This is a first viewing angle diagram of the clamping mechanism of the present invention.

[0017] Figure 6 This is a second viewing angle diagram of the clamping mechanism of the present invention.

[0018] Figure 7 This is a first perspective view of the clamping portion of the clamping mechanism of the present invention.

[0019] Figure 8 This is a second viewing angle diagram of the clamping portion of the clamping mechanism of the present invention.

[0020] Fig. 9 This is a first viewing angle diagram of the synchronous loading and unloading mechanism of the present invention.

[0021] Fig.10 This is a second viewing angle diagram of the synchronous loading and unloading mechanism of the present invention.

[0022] Fig.11 It is a structural diagram of the suction part of the synchronous loading and unloading mechanism of the present invention.

[0023] Figure numbers: 1. External positioning ring; 2. Angle metal shell outer sleeve; 3. Metal shell mold bottom ring; 4. Core; 5. Edge metal shell positioning ring; 6. Metal blank; 7. Middle sleeve positioning ring; 8. Edge middle sleeve; 9. Support frame; 10. Sliding plate; 11. Horizontal slider Ⅰ; 12. Screw rod Ⅰ; 13. Stepper motor Ⅰ; 14. Plate Ⅰ; 15. Vertical slider; 16. Screw rod Ⅱ; 17. Stepper motor Ⅱ; 18. Gripper; 19. Center slider; 20. Connecting rod; 21. Cylinder Ⅰ; 22. Suction cup tube Ⅰ; 23. Screw rod Ⅲ; 24. Stepper motor Ⅲ; 25. Support arm; 26. Plate Ⅱ; 27. Horizontal slider Ⅱ; 28. Press plate; 29. ​​Suction cup tube Ⅱ; 30. Limit slider; 31. Cylinder Ⅱ; 32. Table; 33. Stamping die set. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when in use. They are only for the convenience of describing the simplified description of the invention patent, and do not indicate or imply 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 a limitation on the invention patent. In addition, spatially relative terms may be used in the text for the convenience of description, such as "below", "below", "below", "above", "above", etc., to describe the relationship of an element or feature relative to other elements or features as shown in the figure. Spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptors used in the text may also be interpreted accordingly.

[0026] Implementation example Figure 1-Figure 11 As shown, a metal corner forming die device includes a corner forming die set, a clamping mechanism, a synchronous loading and unloading mechanism, a table 32, and a stamping die set 33; the stamping die set 33 is fixedly mounted on the table 32; In an optional implementation manner of the embodiment of the present invention, as Figure 3 , Figure 4 As shown, the corner forming module includes: an external positioning ring 1, a corner metal shell jacket 2, a metal shell mold bottom ring 3, a core 4, an edge metal shell positioning ring 5, a metal blank 6, a middle sleeve positioning ring 7, and an edge middle sleeve 8; the external positioning ring 1 is clamped in the limit buckle on the table 32, the corner metal shell jacket 2 is placed on the inner ring of the external positioning ring 1, the bottom of the corner metal shell jacket 2 is in contact with the table 32, the metal shell mold bottom ring 3 is placed on the inner ring of the corner metal shell jacket 2, the bottom of the metal shell mold bottom ring 3 is in contact with the table 32, and the core 4 is placed on the metal shell The inner ring of the lower bottom ring 3 of the mold and the bottom of the core 4 are fitted with the table 32, the edge-wrapped metal shell positioning ring 5 is placed on the inner ring of the external positioning ring 1, and the bottom of the edge-wrapped metal shell positioning ring 5 is fitted with the corner metal shell outer sleeve 2, the metal blank 6 is placed on the inner ring of the external positioning ring 1, and the bottom of the metal blank 6 is fitted with the corner metal shell outer sleeve 2, the middle sleeve positioning ring 7 is placed on the inner ring of the external positioning ring 1, and the bottom of the middle sleeve positioning ring 7 is fitted with the edge-wrapped metal shell positioning ring 5, the edge-starting middle sleeve 8 is placed on the inner ring of the external positioning ring 1, and the bottom of the edge-starting middle sleeve 8 is fitted with the metal blank 6.

[0027] In an optional implementation manner of the embodiment of the present invention, as Figure 7 , Figure 8As shown, the clamping mechanism includes: a plate Ⅰ14, a clamping jaw 18, a central slider 19, a connecting rod 20, a cylinder Ⅰ21, a suction cup tube Ⅰ22 and a bidirectional movable component; the clamping jaw 18 is slidably installed in a slide groove on the plate Ⅰ14, and an extension rod is provided on the side of the clamping jaw 18. The inclined surface below the extension rod contacts the round rod on the suction cup tube Ⅰ22. The suction cup tube Ⅰ22 is slidably installed in a circular hole on the plate Ⅰ14. A spring is installed on the suction cup tube Ⅰ22. The bottom of the spring contacts the plate Ⅰ14, and the top of the spring contacts the round rod of the suction cup tube Ⅰ22; one end of the connecting rod 20 contacts the clamping jaw 18, and the other end of the connecting rod 20 contacts the central slider 19. The central slider 19 is slidably installed on the slide rail on the plate Ⅰ14. The central slider 19 is also fixedly connected to the piston rod of the cylinder Ⅰ21, and the cylinder body of the cylinder Ⅰ21 is fixedly installed on the plate Ⅰ14.

[0028] In an optional implementation manner of the embodiment of the present invention, as Figure 5 , Figure 6 As shown, the bidirectional displacement assembly includes: a support frame 9, a sliding plate 10, a horizontal slider Ⅰ11, a screw rod Ⅰ12, a stepper motor Ⅰ13, a vertical slider 15, a screw rod Ⅱ16, and a stepper motor Ⅱ17; the support frame 9 is fixedly mounted on the table 32, the sliding plate 10 is slidably mounted in the slide groove on the support frame 9, the horizontal slider Ⅰ11 is fixedly mounted on the sliding plate 10, the horizontal slider Ⅰ11 is threadedly connected to the screw rod Ⅰ12, both ends of the screw rod Ⅰ12 are rotatably mounted in the circular hole on the support frame 9, one end of the screw rod Ⅰ12 is connected to the motor shaft of the stepper motor Ⅰ13, and the stepper motor Ⅰ13 is fixedly mounted on the side of the support frame 9; the vertical slider 15 is fixedly mounted on the flat plate Ⅰ14, the screw rod Ⅱ16 is threadedly connected to the vertical slider 15, both ends of the screw rod Ⅱ16 are rotatably mounted on the slide rail on the sliding plate 10, one end of the screw rod Ⅱ16 is also connected to the motor shaft of the stepper motor Ⅱ17, and the stepper motor Ⅱ17 is fixedly mounted on the upper end of the sliding plate 10.

[0029] In an optional implementation manner of the embodiment of the present invention, as Fig. 9 , Fig.10 , Fig.11 As shown, the synchronous loading and unloading mechanism includes: a screw rod III 23, a stepper motor III 24, a support arm 25, a plate II 26, and a horizontal slider II 27; both ends of the screw rod III 23 are rotatably mounted in the round holes on the support frame 9, the screw rod III 23 is also threadedly connected to one end of the horizontal slider II 27, the other end of the horizontal slider II 27 is fixedly mounted on the plate II 26, one end of the screw rod III 23 is also connected to the motor shaft of the stepper motor III 24, and the stepper motor III 24 is fixedly mounted on one end of the support frame 9; one end of the support arm 25 is slidably mounted in the slide groove of the support frame 9, and the other end of the support arm 25 is fixedly mounted on the plate II 26.

[0030] In an optional implementation manner of the embodiment of the present invention, as Fig. 9 , Fig.10 , Fig.11 As shown, the synchronous loading and unloading mechanism also includes: a pressing plate 28, a suction cup tube II 29, a limit slider 30, and a cylinder II 31; a round hole is provided on the pressing plate 28, and the round hole is slidably connected to the round rod on the flat plate II 26, and the suction cup tube II 29 is fixedly installed on the pressing plate 28. At the same time, the suction cup tube II 29 is slidably connected to the round hole on the flat plate II 26. A spring is also installed on the suction cup tube II 29, and the lower end of the spring is in contact with the flat plate II 26, and the upper end of the spring is in contact with the pressing plate 28; the limit slider 30 is slidably installed on the slide rail on the flat plate II 26, and an inclined surface is provided under the limit slider 30, the piston rod of the cylinder II 31 is fixedly connected to the limit slider 30, and the cylinder body of the cylinder II 31 is fixedly installed on the horizontal slider II 27.

[0031] In an optional implementation manner of the embodiment of the present invention, as Figure 7 , Figure 8 As shown, the outer side surface of the lower end of the clamping jaw 18 is arc-shaped and fits in the inner circle of the edge-starting middle sleeve 8.

[0032] A forming process for metal corner forming includes the following steps: first, placing scattered metal rings on the limit card on the table 32 to form a corner forming module; first, placing the external positioning ring 1 on the limit card on the table 32, the table 32 plays the role of an overall outer ring support; then placing the corner metal shell jacket 2 in the inner ring of the external positioning ring 1, placing the metal shell mold bottom ring 3 in the inner ring of the corner metal shell jacket 2, and placing the core 4 in the inner ring of the metal shell mold bottom ring 3; the corner metal shell jacket 2, the metal shell mold bottom ring 3, and the core 4 together form a stamping lower mold groove; then placing the edge metal shell positioning ring 5 in the inner ring of the external positioning ring 1, the bottom of the edge metal shell positioning ring 5 is in contact with the corner metal shell jacket 2, and then placing the metal blank 6 In the inner circle of the hemming metal shell positioning ring 5, the function of the hemming metal shell positioning ring 5 is to perform center limiting on the metal blank 6, so that the metal blank 6 is fixed, and then the metal blank 6 is punched; the next step is to place the upper mold part, place the middle sleeve positioning ring 7 in the inner circle of the external positioning ring 1, and the bottom of the middle sleeve positioning ring 7 is in contact with the hemming metal shell positioning ring 5, and then place the edge middle sleeve 8 in the inner circle of the middle sleeve positioning ring 7. The function of the middle sleeve positioning ring 7 is to perform center limiting on the edge middle sleeve 8, and the function of the edge middle sleeve 8 is to punch the metal blank 6. When the edge middle sleeve 8 is punched downward by the punching die set 33, the metal blank 6 is pressed into the groove formed by the corner metal shell outer sleeve 2, the metal shell mold bottom ring 3, and the core 4, thereby completing the punching of the metal blank 6; When the stamping is completed, it is necessary to pick up the middle sleeve positioning ring 7 and the edge middle sleeve 8 on the metal blank 6, then take out the formed metal blank 6, put the unstamped metal blank 6 into the mold again for stamping. First, the stepper motor Ⅰ13 is started to drive the screw rod Ⅰ12 to rotate, thereby driving the horizontal slider Ⅰ11 to slide, and then driving the flat plate Ⅰ14 to slide, so that the flat plate Ⅰ14 slides straight above the die set, and then the stepper motor Ⅱ17 is started to drive the screw rod Ⅱ16 to rotate, so that the vertical The straight slider 15 slides downward, thereby lowering the plate Ⅰ14. After the clamping jaws 18 descend to the inner circle of the edge-starting middle sleeve 8, the cylinder Ⅰ21 is started, driving the central slider 19 to slide, and driving the clamping jaws 18 to slide to both sides through the connecting rod 20 to clamp the edge-starting middle sleeve 8. Synchronously, when the clamping jaws 18 slide outward, they will squeeze the suction cup tube Ⅰ22 to slide downward, so that the suction cup tube Ⅰ22 will suck the middle sleeve positioning ring 7, so that the middle sleeve positioning ring 7 and the edge-starting middle sleeve 8 are grasped and then lifted upward; After being lifted, the plate Ⅱ26 is driven to move horizontally in the same way, so that the two suction cup tubes Ⅱ29 on the plate Ⅱ26 stop on the top of the metal blank 6, and at the same time, the two suction cup tubes Ⅱ29 at the other end stop on the metal blank 6 in the preparation area, and then the cylinder Ⅱ31 is started to drive the limit slider 30 to slide, and the lower extrusion plate 28 under the limit slider 30 slides downward, thereby driving the suction cup tube Ⅱ29 to move downward, contacting the formed metal blank 6 and the metal blank 6 in the preparation area, and sucking them. In the next step, the formed metal blank 6 and the unformed metal blank 6 are moved, so that the formed metal blank 6 is moved to the discharge area, and the unformed metal blank 6 is moved into the mold, completing the loading and unloading, and the next stamping can be carried out.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A metal corner forming die equipment, characterized in that: The invention comprises an angle forming module, a clamping mechanism, a synchronous loading and unloading mechanism, a table (32), and a punching module (33); the punching module (33) is fixedly mounted on the table (32); the angle forming module comprises: an external positioning ring (1), an angle metal shell outer sleeve (2), a metal shell mold bottom ring (3), a core (4), an edge metal shell positioning ring (5), a metal blank (6), a middle sleeve positioning ring (7), and an edge middle sleeve (8); the external positioning ring (1) is clamped in a limiting buckle on the table (32), the angle metal shell outer sleeve (2) is placed on the inner ring of the external positioning ring (1), the bottom of the angle metal shell outer sleeve (2) is in contact with the table (32), the metal shell mold bottom ring (3) is placed on the inner ring of the angle metal shell outer sleeve (2), and the metal shell mold The lower surface of the lower bottom ring (3) of the mold is fitted with the table surface (32); the core (4) is placed on the inner ring of the lower bottom ring (3) of the metal shell mold; the lower surface of the core (4) is fitted with the table surface (32); the edge-wrapped metal shell positioning ring (5) is placed on the inner ring of the outer positioning ring (1); the lower surface of the edge-wrapped metal shell positioning ring (5) is fitted with the corner-wrapped metal shell outer sleeve (2); the metal blank (6) is placed on the inner ring of the outer positioning ring (1); the lower surface of the metal blank (6) is fitted with the corner-wrapped metal shell outer sleeve (2); the middle sleeve positioning ring (7) is placed on the inner ring of the outer positioning ring (1); the lower surface of the middle sleeve positioning ring (7) is fitted with the edge-wrapped metal shell positioning ring (5); the edge-starting middle sleeve (8) is placed on the inner ring of the outer positioning ring (1); the lower surface of the edge-starting middle sleeve (8) is fitted with the metal blank (6).

2. The metal corner forming die equipment according to claim 1, characterized in that: The clamping mechanism comprises: a plate I (14), a clamping claw (18), a central slider (19), a connecting rod (20), a cylinder I (21), a suction cup tube I (22) and a bidirectional moving assembly; the clamping claw (18) is slidably mounted in a slide groove on the plate I (14); an extension rod is provided on the side of the clamping claw (18); the inclined surface below the extension rod contacts the round rod on the suction cup tube I (22); the suction cup tube I (22) is slidably mounted in a round hole on the plate I (14); the suction cup tube I (22) ) is mounted on the plate I (14), the lower side of the spring contacts the plate I (14), and the upper side of the spring contacts the round rod of the suction cup tube I (22); one end of the connecting rod (20) contacts the clamping claw (18), and the other end of the connecting rod (20) contacts the central slider (19), the central slider (19) is slidably mounted on a slide rail on the plate I (14), the central slider (19) is also fixedly connected to the piston rod of the cylinder I (21), and the cylinder body of the cylinder I (21) is fixedly mounted on the plate I (14).

3. The metal corner forming die equipment according to claim 2, characterized in that: The bidirectional displacement assembly comprises: a support frame (9), a sliding plate (10), a horizontal slider I (11), a screw rod I (12), a stepping motor I (13), a vertical slider (15), a screw rod II (16), and a stepping motor II (17); the support frame (9) is fixedly mounted on the table (32); the sliding plate (10) is slidably mounted in a slide groove on the support frame (9); the horizontal slider I (11) is fixedly mounted on the sliding plate (10); the horizontal slider I (11) is threadedly connected to the screw rod I (12); and both ends of the screw rod I (12) are rotatably mounted on the support frame (9). In the circular hole on the support frame (9), one end of the screw rod I (12) is connected to the motor shaft of the stepper motor I (13), and the stepper motor I (13) is fixedly mounted on the side of the support frame (9); the vertical slider (15) is fixedly mounted on the flat plate I (14), the screw rod II (16) is threadedly connected to the vertical slider (15), and both ends of the screw rod II (16) are rotatably mounted on the slide rail on the sliding plate (10), and one end of the screw rod II (16) is also connected to the motor shaft of the stepper motor II (17), and the stepper motor II (17) is fixedly mounted on the upper end of the sliding plate (10).

4. The metal corner forming die equipment according to claim 3, characterized in that: The synchronous loading and unloading mechanism comprises: a screw rod III (23), a stepping motor III (24), a support arm (25), a plate II (26), and a horizontal slider II (27); both ends of the screw rod III (23) are rotatably mounted in the circular holes on the support frame (9), the screw rod III (23) is also threadedly connected to one end of the horizontal slider II (27), the other end of the horizontal slider II (27) is fixedly mounted on the plate II (26), one end of the screw rod III (23) is also connected to the motor shaft of the stepping motor III (24), and the stepping motor III (24) is fixedly mounted on one end of the support frame (9); one end of the support arm (25) is slidably mounted in the slide groove of the support frame (9), and the other end of the support arm (25) is fixedly mounted on the plate II (26).

5. The metal corner forming die equipment according to claim 4, characterized in that: The synchronous loading and unloading mechanism also includes: a pressing plate (28), a suction cup tube II (29), a limit slider (30), and a cylinder II (31); a circular hole is provided on the pressing plate (28), and the circular hole is slidably connected to the round rod on the flat plate II (26); the suction cup tube II (29) is fixedly installed on the pressing plate (28), and the suction cup tube II (29) is slidably connected to the circular hole on the flat plate II (26); a spring is also installed on the suction cup tube II (29), and the lower end of the spring is in contact with the flat plate II (26), and the upper end of the spring is in contact with the pressing plate (28); the limit slider (30) is slidably installed on the slide rail on the flat plate II (26), and an inclined surface is provided below the limit slider (30); the piston rod of the cylinder II (31) is fixedly connected to the limit slider (30), and the cylinder body of the cylinder II (31) is fixedly installed on the horizontal slider II (27).

6. The metal corner forming die equipment according to claim 2, characterized in that: The outer side surface of the lower end of the clamping claw (18) is arc-shaped and fits in the inner circle of the edge-starting middle sleeve (8).

7. A metal corner forming process according to any one of claims 1 to 6, characterized in that: The method comprises the following steps: firstly, placing scattered metal rings on the limiting card on the table (32) to form an angle forming module; firstly, placing an external positioning ring (1) on the limiting card on the table (32); the table (32) serves as a support for the overall outer ring; then placing the angle metal shell jacket (2) in the inner ring of the external positioning ring (1); placing the metal shell mold bottom ring (3) in the inner ring of the angle metal shell jacket (2); placing the core (4) in the inner ring of the metal shell mold bottom ring (3); the angle metal shell jacket (2), the metal shell mold bottom ring (3) and the core (4) together form a stamping lower mold groove; then placing the edge metal shell positioning ring (5) in the inner ring of the external positioning ring (1); the bottom of the edge metal shell positioning ring (5) is fitted with the angle metal shell jacket (2); and then placing the metal blank (6) on the edge metal shell positioning ring (5) ), the edge metal shell positioning ring (5) is used to limit the center of the metal blank (6) so that the metal blank (6) is fixed, and then the metal blank (6) is punched; the next step is to place the upper mold part, place the middle sleeve positioning ring (7) in the inner ring of the outer positioning ring (1), the lower side of the middle sleeve positioning ring (7) is in contact with the edge metal shell positioning ring (5), and then place the edge middle sleeve (8) in the inner ring of the middle sleeve positioning ring (7), the role of the middle sleeve positioning ring (7) is to limit the center of the edge middle sleeve (8), the role of the edge middle sleeve (8) is to punch the metal blank (6), and the edge middle sleeve (8) is pressed downward by the punching die set (33) to press the metal blank (6) into the groove formed by the corner metal shell outer sleeve (2), the metal shell mold bottom ring (3), and the core (4), thereby completing the punching of the metal blank (6); When the stamping is completed, the middle sleeve positioning ring (7) and the edge middle sleeve (8) on the metal blank (6) need to be picked up, and then the formed metal blank (6) is taken out, and the unstamped metal blank (6) is put into the mold again for stamping. First, the stepper motor I (13) is started to drive the screw rod I (12) to rotate, thereby driving the horizontal slider I (11) to slide, and then driving the plate I (14) to slide, so that the plate I (14) slides above the die set, and then the stepper motor II (17) is started to drive the screw rod II (16) to rotate, so that the vertical slider (15) slides downward, thereby lowering the plate I (14). After the clamping claw (18) descends to the inner ring of the edge-starting middle sleeve (8), the cylinder I (21) is started, driving the central slider (19) to slide, and driving the clamping claw (18) to slide to both sides through the connecting rod (20), thereby clamping the edge-starting middle sleeve (8). Synchronously, while the clamping claw (18) slides outward, it squeezes the suction cup tube I (22) to slide downward, thereby causing the suction cup tube I (22) to suck the middle sleeve positioning ring (7), thereby grabbing the middle sleeve positioning ring (7) and the edge-starting middle sleeve (8), and then lifting it upward; After being lifted, the plate II (26) is driven to move horizontally in the same manner, so that the two suction cup tubes II (29) on the plate II (26) stop on the upper side of the metal blank (6), and at the same time, the two suction cup tubes II (29) at the other end stop on the upper side of the metal blank (6) in the material preparation area. Then, the cylinder II (31) is started to drive the limit slider (30) to slide, and the lower extrusion plate (28) below the limit slider (30) slides downward, thereby driving the suction cup tube II (29) to move downward, contacting the formed metal blank (6) and the metal blank (6) in the material preparation area, and sucking them. Next, the formed metal blank (6) and the unformed metal blank (6) are moved, so that the formed metal blank (6) is moved to the discharge area, and the unformed metal blank (6) is moved into the mold, and the loading and unloading are completed, and the next stamping can be carried out.

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