Metal part punch forming system and punching structure thereof

Abstract

The invention discloses a metal part stamping forming system and a stamping structure thereof.The metal part stamping forming system comprises the stamping structure used for achieving stamping and blanking of a material belt and a conveying structure used for collecting and conveying plane blanks, and the conveying structure comprises a conveying belt and a second functional cylinder; a plurality of material grooves are evenly formed in the conveying path of the conveying belt, a first supporting block is arranged in each material groove, the working end of the second functional cylinder is rotationally connected with a second supporting block, the punching structure comprises a punch and a die sleeve, and the second supporting blocks can drive the first supporting blocks to move between the material grooves and the die sleeve. The first supporting block can be filled in an inner hole of the die sleeve during punching to support a metal material strip and the punch, pulling of the punch to the material strip is reduced, after punching is completed, the first supporting block can drive obtained metal plane blanks to enter a material block, one-by-one collection and conveying of the metal plane blanks are achieved, and machining of the next procedure can be conveniently conducted on the plane blanks.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping forming, and particularly relates to a metal part stamping forming system and its stamping structure. Background Art

[0002] In the field of metal stamping processing, continuous stamping of metal strip is one of the main processes for efficient production of sheet metal parts. The traditional processing flow usually includes two core processes: punching and blanking, and bending and forming. Among them, "blanking first and then bending" is a common process, that is, a flat blank with the required shape is punched out on the strip first, and then the blank is three-dimensionally formed by a bending machine or a die.

[0003] Blanking and bending are often completed on different equipment or production lines. The flat blanks after stamping and blanking are usually stacked and collected. When entering the bending process, they need to be individually separated by manual or mechanical means and then fed into the bending machine for processing. This process is inefficient; some enterprises use manipulators to grab the flat blanks for bending, but due to the stacking and adhesion of the blanks or inconsistent postures, manual intervention is still required, and it is difficult to achieve fully automatic continuous production. Summary of the Invention

[0004] In view of the situation in the prior art that the flat blanks after stamping and blanking are centrally collected, resulting in inconvenient separation during subsequent bending processing, the present invention provides a metal part stamping forming system and its stamping structure, which collect and convey the flat blanks one by one after stamping and blanking, facilitating the processing of the flat blanks in the next process.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A metal part stamping forming system includes an unwinding member for unwinding the strip, a winding member for winding the strip, and a stamping structure for realizing stamping and blanking of the strip. The stamping structure is located between the unwinding member and the winding member, and the strip is wound by the winding member after being punched and blanked by the stamping structure through the unwinding member. It is characterized in that it further includes a conveying structure for collecting and conveying flat blanks. The conveying structure includes a conveyor belt and a second functional cylinder. The conveyor belt is located below the stamping structure. A plurality of material grooves are evenly arranged on the conveying path of the conveyor belt. A first support block is arranged inside each material groove. The second functional cylinder is vertically arranged. The working end of the second functional cylinder is rotatably connected to a second support block. The conveyor belt is provided with a through hole communicating with the material groove, and the through hole is used to accommodate the second support block to pass through. After the second support block enters the material groove from the through hole, it is combined with the first support block;

[0007] The stamping structure includes a punch and a die sleeve. The outer edge of the punch matches the inner hole of the die sleeve. The punch punches and cuts the strip above the die sleeve to blank. The first support block matches the inner hole of the die sleeve. The second functional cylinder is used to drive the first support block into the inner hole of the die sleeve. The first support block fills the inner hole of the die sleeve to support the strip above the die sleeve. A flat blank is formed between the first support block and the punch. A first magnet for adsorbing the flat blank is arranged inside the first support block. After the flat blank is formed, the second functional cylinder drives the first support block and the flat blank into the interior of the material chute. The first support block separates from the second support block to avoid the second support block interfering with the conveyor belt during conveying.

[0008] Preferably, a connecting column is arranged at the top of the second support block. The upper part of the connecting column is a threaded part, and the lower part of the connecting column is a smooth rod part. A connecting hole is arranged at the bottom surface of the first support block, and an internal thread is arranged at the bottom of the connecting hole. The internal thread matches the threaded part, and the helix angle of the external thread of the threaded part is greater than 45°.

[0009] Preferably, a limiting groove is arranged on the side surface of the second support block. The stamping structure is provided with a limiting block. The limiting block is slidably connected to the lower template in the horizontal direction. When the first support block fills the inner hole of the die sleeve, the positions of the limiting groove and the limiting block are horizontally corresponding. The limiting block is used to enter the limiting groove to axially limit the second support block.

[0010] Preferably, it further includes a fourth functional cylinder. The working end of the fourth functional cylinder is fixedly connected to the limiting block. The axis of the fourth functional cylinder is horizontally arranged. The fourth functional cylinder is used to drive the limiting block to move in the horizontal direction.

[0011] Preferably, a second piston and one end of a second piston rod are arranged inside the fourth functional cylinder. The side of the second piston away from the second piston rod is used to fill a liquid medium. The other end of the second piston rod extends out of the fourth functional cylinder and is fixedly connected to the limiting block. A fourth elastic member is arranged between the second piston and the end of the fourth functional cylinder. The fourth elastic member is used to maintain the contracted state of the fourth functional cylinder.

[0012] Preferably, it further includes a first functional cylinder. The axis of the first functional cylinder is vertically arranged. A first piston and one end of a first piston rod are arranged inside the first functional cylinder. A third elastic member is arranged between the first piston and the end of the first functional cylinder. The third elastic member is used to maintain the extended state of the fourth functional cylinder. The other end of the first piston rod extends out from the upper part of the first functional cylinder. The space below the first piston communicates with the fourth functional cylinder. The space below the first piston is used to fill a liquid medium. The liquid medium inside the first functional cylinder enters the fourth functional cylinder to realize the driving of the limiting block by the fourth functional cylinder.

[0013] Preferably, the stamping structure includes an upper template, a movable template and a lower template. The movable template is located between the upper template and the lower template and slides along the guiding pillars. The guiding pillars are fixedly located between the upper template and the lower template and are vertically arranged along the axis. The die sleeve is fixedly arranged on the lower template. A third functional cylinder is arranged on the upper template. The working end of the third functional cylinder is fixedly connected to the punch through a connecting rod. The third functional cylinder is used to drive the punch to move to achieve the punching action. A push plate is arranged on the connecting rod.

[0014] The first functional cylinder is fixedly connected to the upper template. The position of the first functional cylinder corresponds to the position of the push plate. The push plate is used to push the first piston of the first functional cylinder to form an axial movement of the first piston downward, so that the liquid medium inside the first functional cylinder enters the inside of the fourth functional cylinder.

[0015] Preferably, a fixed sleeve is fixedly arranged on the connecting rod. A rotating sleeve is rotatably connected to the outside of the fixed sleeve. The push plate is fixedly connected to one side of the rotating sleeve.

[0016] A guiding seat is arranged on the top of the upper template. A contact surface is arranged on one side of the guiding seat opposite to the push plate. The contact surface includes a vertical contact surface located at the lower part and an inclined contact surface located at the upper part. A second elastic member is arranged between the rotating sleeve and the fixed sleeve. The second elastic member is used to realize the torsion of the rotating sleeve relative to the fixed sleeve and keep the contact surface between the push plate and the guiding seat in contact.

[0017] Preferably, when the push plate contacts the inclined contact surface of the guiding seat, the limiting block is located inside the limiting groove of the two supporting blocks. When the push plate contacts the vertical contact surface of the guiding seat, the liquid medium enters the inside of the first functional cylinder from the fourth functional cylinder through the conduit, and the fourth functional cylinder drives the limiting block to leave the limiting groove of the supporting block.

[0018] Preferably, a second magnetic block for adsorbing the first supporting block is arranged in the material groove.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The metal part stamping and forming system of the present invention is provided with a stamping structure for stamping and blanking of metal strip and a conveying structure for collecting and conveying flat blanks. The conveying structure is provided with two supporting blocks. The second supporting block can drive the first supporting block to move between the material groove and the die sleeve. The first supporting block can be filled in the inner hole of the die sleeve during stamping to support the metal strip and the punch, reduce the pulling force generated by the punch on the strip. After punching, the first supporting block can drive the obtained metal flat blank into the material block, realizing the individual collection and conveying of the metal flat blank, which is convenient for processing the flat blank in the next process.

[0021] 2. When the metal part stamping and forming system is stamping, the second support block can be supported by the limit block to maintain the effective and stable support function of the first support block for the metal strip. The movement of the limit block is controlled by the first functional cylinder and the fourth functional cylinder. The first functional cylinder is pushed by the third functional cylinder for stamping. During the stamping process, the limit block can be controlled according to the position of the punch to realize the support function of the first support block during stamping and the timely release of the support function of the first support block after stamping, which is convenient for the first support block to carry the metal flat blank away from the die sleeve and is conducive to the timely collection and transmission of the flat blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the metal part stamping and forming system;

[0023] Figure 2 is a schematic structural diagram of the stamping structure of the metal part stamping and forming system

[0024] Figure 3 is a schematic structural diagram of the front of the stamping structure of the metal part stamping and forming system;

[0025] Figure 4 is a schematic structural diagram of the side of the stamping structure of the metal part stamping and forming system;

[0026] Figure 5 is a schematic structural diagram of the stamping structure of the metal part stamping and forming system;

[0027] Figure 6 is a schematic structural diagram of the stamping structure of the metal part stamping and forming system;

[0028] Figure 7 is a schematic structural diagram of the connection of the fourth functional cylinder of the metal part stamping and forming system;

[0029] Figure 8 is a schematic structural diagram of the material trough of the metal part stamping and forming system.

[0030] In the figure: 1. Base; 2. Upper template; 3. Movable template; 4. Lower template; 5. Punch; 6. First support block; 7. Second support block; 8. First functional cylinder; 9. Strip; 10. Unwinding part; 11. Rewinding part; 12. Limiting roller group; 13. Conveyor belt; 14. Material trough; 15. Second functional cylinder; 16. Guide seat; 17. Cover; 18. Guide sleeve; 19. Third functional cylinder; 20. Limit block; 21. Fourth functional cylinder; 22. Conduit.

[0031] 201. Guide pillar; 202. First elastic member; 203. Fifth functional cylinder; 31. Accommodating passage; 41. Support plate; 42. Die sleeve; 51. Connecting rod; 52. Rotating sleeve; 53. Fixed sleeve; 54. Pusher plate; 541. First contact plate; 61. First magnet; 62. Connecting hole; 71. Limiting groove; 72. Connecting column; 73. Threaded portion; 81. Second contact plate; 82. First piston rod; 83. First piston; 84. Third elastic member; 91. Flat blank; 131. Through hole; 141. Second magnet; 191. Connecting seat; 211. Second piston rod; 212. Second piston; 213. Fourth elastic member. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0033] Refer to Figure 1-2 , a metal part stamping and forming system includes a base 1, on which a unwinding member 10 for unwinding a strip 9, a winding member 11 for winding the strip 9, a stamping structure for stamping and blanking the strip 9, and a conveying structure for collecting and conveying a flat blank 91 are provided. The conveying structure is located below the stamping structure, and the stamping structure is located between the unwinding member 10 and the winding member 11.

[0034] Reference Figure 1 , the above-mentioned unwinding member 10 includes an unwinding roller and a first motor for driving the unwinding roller to rotate. The unprocessed strip 9 is wound around the unwinding roller, and the first motor drives the unwinding roller to rotate to realize the unwinding of the strip 9. The above-mentioned winding member 11 includes a winding roller and a second motor for driving the winding roller to rotate. The processed strip 9 is wound around the winding roller, and the second motor drives the winding roller to rotate to realize the recovery of the strip 9. Two limiting roller groups 12 are provided on the base 1. One limiting roller group 12 is located between the unwinding member 10 and the metal part stamping die, and the other limiting roller group 12 is located between the winding member 11 and the metal part stamping die. The limiting roller group 12 is composed of two guiding rollers distributed up and down, and the strip 9 passes between the two guiding rollers, and the guiding rollers limit the strip 9.

[0035] Furthermore, refer to Figure 2, the stamping structure includes an upper template 2, a movable template 3, and a lower template 4. The upper template 2, the movable template 3, and the lower template 4 are arranged parallel to each other in the horizontal direction, and the movable template 3 is located between the upper template 2 and the lower template 4. A guiding pillar 201 is also provided between the upper template 2 and the lower template 4. The guiding pillar 201 is fixedly located between the upper template 2 and the lower template 4 and has a vertical axis. The number of guiding pillars 201 is four. The movable template 3 is slidably sleeved on the guiding pillar 201, and a first elastic member 202 is also sleeved on the guiding pillar 201. The first elastic member 202 is sleeved between the movable template 3 and the lower template 4, and the stretching force of the first elastic member 202 causes the movable template 3 to be in contact with the upper template 2. A fifth functional cylinder 203 is provided on the upper template 2. The fifth functional cylinder 203 is fixedly connected to the upper template 2, and the working end of the fifth functional cylinder 203 is fixedly connected to the movable template 3. The axis of the fifth functional cylinder 203 is vertically arranged, and the fifth functional cylinder 203 is used to drive the movable template 3 to move in the vertical direction. The strip 9 passes between the movable template 3 and the lower template 4, and the movable template 3 is used to apply pressure to the strip 9 during stamping.

[0036] The base 1 of the metal part stamping and forming system is provided with a support frame. Among them, the unwinding member 10 and the winding member 11 are installed on the support frame, the lower template 4 is fixedly connected to the base 1, the upper template 2 is fixedly installed on the support frame, and the conveying structure is installed on the base 1. The strip 9 is fed from the unwinding member 10, cut and blanked by the metal part stamping die, and then recovered by the winding member 11, realizing continuous feeding, cutting processing, and discharging of the strip 9.

[0037] Reference Figure 1 , the conveying structure includes a conveyor belt 13 and a second functional cylinder 15. The conveyor belt 13 is located below the stamping structure. The conveyor belt 13 is supported and conveyed by two conveyor wheels. The support wheels are rotatably connected to the base 1, and the base 1 is provided with a third motor (not shown) for driving the conveyor wheels to rotate. The output shaft of the third motor is coaxially connected to the conveyor wheel, and the third motor can drive one conveyor wheel to rotate to realize the conveying function of the conveyor belt 13.

[0038] Furthermore, the conveyor belt 13 is provided with a plurality of material grooves 14, and the plurality of material grooves 14 are evenly distributed on the conveying path of the conveyor belt 13. A first support block 6 is arranged inside each material groove 14. Reference Figure 8 , the side wall of the material groove 14 is provided with a second magnetic block 141, and the second magnetic block 141 can adsorb the first support block 6 to keep the first support block 6 inside the material groove 14 when passing through the lower conveying surface of the conveyor belt 13.

[0039] The second functional cylinder 15 is located below the upper conveying surface of the conveyor belt 13. The axis of the second functional cylinder 15 is vertically arranged, and the working end of the second functional cylinder 15 is located at the upper end of the second functional cylinder 15. The working end of the second functional cylinder 15 is rotatably connected with a second support block 7. The second functional cylinder 15 can drive the second support block 7 to move axially to realize the lifting of the second support block 7.

[0040] Further, through holes are provided at the bottom of the material tank 14, and the conveyor belt 13 is provided with a plurality of through holes 131. The through holes 131 correspond to the position of the material tank 14 and communicate with the material tank 14. The through holes 131 are used to accommodate the second support block 7 to pass through. Driven by the second functional cylinder 15, the second support block 7 enters the material tank 14 from the through holes 131 and is combined with the first support block 6 inside the material tank 14.

[0041] Reference Figure 8 , a connecting column 72 is provided at the top of the second support block 7, and a connecting hole 62 is provided at the bottom surface of the first support block 6. The outer diameter of the connecting column 72 matches the inner diameter of the connecting hole 62, and the connecting column 72 can be inserted into the inside of the connecting hole 62 to realize the plug connection between the connecting column 72 and the connecting hole 62.

[0042] Further, the upper part of the connecting column 72 is a threaded part 73, and the lower part of the connecting column 72 is a smooth rod part. A connecting hole 62 is provided at the bottom surface of the first support block 6, and an internal thread is provided at the bottom of the connecting hole 62. The threaded part 73 is an external thread, and the internal thread matches the threaded part 73. When the second support block 7 rotates relative to the first support block 6, the connecting column 72 can rotate relative to the first support block 6 to realize the threaded connection between the internal thread of the connecting hole 62 of the first support block 6 and the threaded part 73 on the connecting column 72.

[0043] In this embodiment, the helix angle of the external thread of the threaded part 73 is greater than 45°, which is convenient for the threaded connection and separation between the internal thread of the connecting hole 62 and the threaded part 73 on the connecting column 72.

[0044] Reference Figure 3 and Figure 4 , a support plate 41 is provided on the lower template 4 of the above stamping structure. The support plate 41 is used to support the strip 9, and a die sleeve 42 is provided on the support plate 41. The die sleeve 42 is used for punching and blanking. C-shaped strip limiting card slots with openings upward are provided at both ends of the lower template 4. The strip 9 enters the lower template 4 from the strip limiting card slot at the first end of the lower template 4, passes through the support plate 41 and the die sleeve 42, and then leaves the lower template 4 from the strip limiting card slot at the second end.

[0045] The upper die plate 2 described above is provided with a punch 5. A notch is provided below the punch 5, and the position of the punch 5 corresponds to the position of the die sleeve 42. The outer edge of the notch of the punch 5 matches the inner hole of the die sleeve 42. When the strip 9 passes over the die sleeve 42, the punch 5 can pass through the die sleeve 42 from above the die sleeve 42 to achieve punching and blanking of the strip 9. The upper die plate 2 is provided with a third functional cylinder 19. The third functional cylinder 19 is fixedly connected to the upper die plate 2. The punch 5 is connected to the working end of the third functional cylinder 19. The axis of the third functional cylinder 19 is vertically arranged, and the third functional cylinder 19 is used to drive the punch 5 to move in the vertical direction to achieve punching.

[0046] A connecting seat 191 is provided at the working end of the third functional cylinder 19 described above. The connecting seat 191 is connected to the punch 5 through a connecting rod 51. The upper end of the connecting rod 51 is fixedly connected to the connecting seat 191, and the lower end of the connecting rod 51 penetrates the upper die plate 2 and extends below the upper die plate 2. The movable die plate 3 is provided with an accommodating hole 31 that penetrates the movable die plate 3. The accommodating hole 31 is used to accommodate the punch 5 to stay or move.

[0047] The lower die plate 4 described above is provided with a blanking cavity below the die sleeve 42. A guide sleeve 18 is provided inside the blanking cavity. The guide sleeve 18 is fixedly connected to the lower die plate 4. The inner hole of the guide sleeve 18 communicates with the die sleeve 42. At the same time, the inner hole of the guide sleeve 18 matches the outer edge of the first support block 6 and the outer edge of the second support block 7. The position of the guide sleeve 18 described above corresponds to the position of the second functional cylinder 15. The second functional cylinder 15 can push the second support block 7 and the first support block 6, and the second support block 7 and the first support block 6 enter the guide sleeve 18 and perform axial movement inside the guide sleeve 18.

[0048] The motor in this embodiment is a stepping motor, which is controlled by a pulse signal. It rotates a fixed angle for each received pulse, and can realize the intermittent transmission function of the conveyor belt 13. When the conveyor belt 13 stops transmitting, the material trough 14 corresponds to the position of the second functional cylinder 15, and the through hole 131 of the conveyor belt 13 corresponds to the position of the second support block 7, which is convenient for the second support block 7 to pass through the through hole 131 and enter the material trough 14.

[0049] In this embodiment, the first support block 6 matches the inner hole of the die sleeve 42. When punching the strip 9, the first support block 6 can be located in the inner hole of the die sleeve 42. The first support block 6 fills the inner hole of the die sleeve 42, and can realize the support of the strip 9 above the die sleeve 42 by the first support block 6, so that the strip 9 has no movement in the punching direction during punching, and reduces the pulling of the strip 9 by the punch 5.

[0050] Further, a limiting groove 71 is provided on the side surface of the second support block 7, and a limiting block 20 and a fourth functional cylinder 21 are installed on the guiding sleeve 18. The limiting block 20 is slidably connected to the guiding sleeve 18 in the horizontal direction. The working end of the fourth functional cylinder 21 is fixedly connected to the limiting block 20, and the axis of the fourth functional cylinder 21 is horizontally arranged. The fourth functional cylinder 21 is used to drive the limiting block 20 to move in the horizontal direction. When the first support block 6 is filled in the inner hole of the die sleeve 42, the positions of the limiting groove 71 and the limiting block 20 correspond horizontally. The fourth functional cylinder 21 can drive the limiting block 20 to move, and the limiting block 20 enters the limiting groove 71 to axially limit the second support block 7, so that the first support block 6 has an axial supporting force when punching the strip 9.

[0051] Further, a first magnetic block 61 is arranged inside the first support block 6, and the first magnetic block 61 can adsorb the flat blank 91. After punching, the punch 5 continues to move downward, and the flat blank 91 is separated from the strip 9 in the vertical direction. The flat blank 91 enters the guiding sleeve 18 between the punch 5 and the first support block 6. The third functional cylinder 19 drives the punch 5 to return upward. The first magnetic block 61 of the first support block 6 adsorbs the flat blank 91, and the flat blank 91 stays on the top of the first support block 6. The second functional cylinder 15 can drive the first support block 6 and the flat blank 91 into the inside of the material trough 14 to realize the single collection of the flat blank 91.

[0052] In this embodiment, the second functional cylinder 15 can drive the second support block 7 to move axially, so as to realize the movement of the first support block 6 between the die sleeve 42 and the material trough 14. The second functional cylinder 15 pushes the second support block 7 upward, and the second support block 7 enters the material trough 14. The connecting column 72 of the second support block 7 is inserted into the connecting hole 62 of the first support block 6, and the first support block 6 can move upward synchronously with the second support block 7. When the first support block 6 is located inside the die sleeve 42, the first support block 6 stops moving, and the second support block 7 continues to move upward. At this time, the second support block 7 rotates relative to the first support block 6 to realize the threaded connection between the second support block 7 and the first support block 6, that is, the combination between the second support block 7 and the first support block 6 is completed. After stamping, the second functional cylinder 15 drives the second support block 7 and the first support block 6 to move downward. The first support block 6 leaves the inside of the die sleeve 42 and returns to the material trough 14. The first support block 6 stops moving, and the second support block 7 continues to move downward. At this time, the second support block 7 rotates relative to the first support block 6 to release the threaded connection between the second support block 7 and the first support block 6, and the second support block 7 is separated from the first support block 6 to avoid interference with the transmission of the conveyor belt 13 by the second support block 7. The material trough 14 with the flat blank 91 is conveyed away from above the second support block 7 by the conveyor belt 13, and a new material trough 14 comes above the second support block 7 to realize the continuous collection and transmission of the flat blank 91.

[0053] ReferenceFigure 7 , inside the fourth functional cylinder 21, one end of a second piston 212 and a second piston rod 211 is arranged. On the side of the second piston 212 away from the second piston rod 211, a liquid medium is used for filling. The other end of the second piston rod 211 extends out of the fourth functional cylinder 21 and is fixedly connected to a limiting block 20. A fourth elastic member 213 is arranged between the second piston 212 and the end of the fourth functional cylinder 21. The fourth elastic member 213 is used to maintain the contracted state of the fourth functional cylinder 21.

[0054] Furthermore, a first functional cylinder 8 is fixedly arranged on the upper template, and the axis of the first functional cylinder 8 is vertically arranged. Inside the first functional cylinder 8, one end of a first piston 83 and a first piston rod 82 is arranged. A third elastic member 84 is arranged between the first piston 83 and the end of the first functional cylinder 8. The third elastic member 84 is used to maintain the extended state of the fourth functional cylinder 21. The other end of the first piston rod 82 extends out from the upper part of the first functional cylinder 8. The space below the first piston 83 is communicated with the fourth functional cylinder 21 through a conduit 22. The space below the first piston 83 is used for filling a liquid medium. The liquid medium in this embodiment is hydraulic oil. The liquid medium inside the first functional cylinder 8 enters the inside of the fourth functional cylinder 21 through the conduit 22, and the fourth functional cylinder 21 can drive the limiting block 20.

[0055] Reference Figure 2 , Figure 3 and Figure 4 , on the connecting rod 51 between the third functional cylinder 19 and the punch 5, a fixed sleeve 53 is fixedly arranged. On one side of the fixed sleeve 53, a push plate 54 is arranged. The push plate 54 can move along with the connecting rod 51 to achieve a lifting action.

[0056] The position of the first functional cylinder 8 corresponds to the position of the push plate 54. A second contact plate 81 is arranged at the top of the first piston rod 82. A first contact plate 541 is arranged at the lower part of the push plate 54. The first contact plate 541 is used to contact the second contact plate 81. The push plate 54 can push the second contact plate 81 downward, so that the first piston 83 moves downward, and the liquid medium inside the first functional cylinder 8 enters the inside of the fourth functional cylinder 21.

[0057] Further, a guiding seat 16 is provided at the top of the upper template 2. A contact surface is provided on one side of the guiding seat 16 opposite to the push plate 54. The contact surface includes a first vertical contact surface, a second vertical contact surface, and an inclined contact surface. The first vertical contact surface is above the second vertical contact surface, and the inclined contact surface is between the first vertical contact surface and the second vertical contact surface. A rotating sleeve 52 is rotatably connected to the outside of the fixed sleeve 53. The push plate 54 is fixedly connected to one side of the rotating sleeve 52. A second elastic member is provided between the rotating sleeve 52 and the fixed sleeve 53. The second elastic member is a torsion spring, and the second elastic member is used to enable the rotating sleeve 52 to twist relative to the fixed sleeve 53 to keep the contact surface between the push plate 54 and the guiding seat 16 in contact. When the push plate 54 contacts the inclined contact surface or the first vertical contact surface of the guiding seat 16, the push plate 54 is above the second contact plate 81. When the push plate 54 contacts the second vertical contact surface of the guiding seat 16, the push plate 54 leaves above the second contact plate 81.

[0058] A cover 17 may also be provided at the top of the upper template 2. The cover 17 is used to shield the guiding seat 16, the first functional cylinder 8, and the push plate 54 to play a protective role and reduce the influence of external factors on the movement of the push plate 54.

[0059] When the third functional cylinder 19 pushes the punch 5 downward, at the beginning, the fixed sleeve 53, the push plate 54, and the punch 5 move synchronously. The push plate 54 pushes the second contact plate 81 downward, and the first piston 83 moves downward. The liquid medium inside the first functional cylinder 8 enters the fourth functional cylinder 21 through the conduit 22. The limiting block 20 enters the limiting groove 71 to axially limit the second support block 7. The punch 5 continues to move downward. The punch 5 punches the strip 9. During the above process, the push plate 54 successively contacts the first contact surface and the inclined contact surface of the guiding seat 16. The punch 5 continues to move downward. At this time, the push plate 54 leaves the inclined contact surface of the guiding seat 16, and the push plate 54 leaves above the second contact plate 81. The second contact plate 81 of the first functional cylinder 8 can return upward. The liquid medium inside the fourth functional cylinder 21 enters the first functional cylinder 8 through the conduit 22. The limiting block 20 leaves the limiting groove 71 to release the axial limit on the second support block 7. The punch 5, the first support block 6, and the second support block 7 can move downward together to realize the axial separation between the flat blank 91 and the strip 9.

[0060] The metal part stamping and forming system in this embodiment includes the following working processes:

[0061] Step 1: Processing preparation.

[0062] The strip 9 is unrolled from the unwinding member 10, enters the lower template 4 from the strip limiting card slot at the first end of the lower template 4, passes through the support plate 41 and the die sleeve 42, and then leaves the lower template 4 from the strip limiting card slot at the second end and is recycled by the winding member 11;

[0063] At this time, the movable template 3 is in contact with the upper template 2, the punch 5 is located in the accommodation hole 31 of the movable template 3, the second functional cylinder 15 is in a contracted state, the second support block 7 is at the lower limit position, and the second support block 7 is separated from the first support block 6 on the conveyor belt 13;

[0064] Step 2: Stamping and blanking processing.

[0065] The conveyor wheel drives the conveyor belt 13 to convey. When the material trough 14 corresponds to the position of the second functional cylinder 15, the conveyor belt 13 stops conveying. The second functional cylinder 15 pushes the second support block 7 upward. The second support block 7 enters the material trough 14 through the through hole 131. The connecting column 72 of the second support block 7 is inserted into the connecting hole 62 of the first support block 6. The first support block 6 can move upward synchronously with the second support block 7. When the first support block 6 is inside the die sleeve 42, the first support block 6 stops moving, and the second support block 7 continues to move upward. At this time, the second support block 7 rotates relative to the first support block 6 to achieve the threaded connection between the second support block 7 and the first support block 6, that is, the combination between the second support block 7 and the first support block 6 is completed. The second support block 7 is at the upper limit position, and the first support block 6 is inside the die sleeve 42 and fills the inner hole of the die sleeve 42;

[0066] At this time, the strip 9 also comes to the stamping position. Refer to Figure 5 , the fifth functional cylinder 203 drives the movable template 3 to move downward to apply pressure and position the strip 9. Then the third functional cylinder 19 drives the punch 5 to move downward. The fixed sleeve 53, the push plate 54 and the punch 5 move synchronously. The push plate 54 pushes the second contact plate 81 downward, and the first piston 83 moves downward. The liquid medium inside the first functional cylinder 8 enters the fourth functional cylinder 21 through the conduit 22. The limiting block 20 enters the limiting groove 71 to axially limit the second support block 7, so that the first support block 6 has an axial supporting force when punching the strip 9;

[0067] Step 3: Collection of planar blanks

[0068] After punching, the third functional cylinder 19 drives the punch 5 to continue moving downward. At this time, the push plate 54 just leaves the inclined contact surface of the guiding seat 16, that is, the push plate 54 leaves above the second contact plate 81. Under the action of the third elastic member 84, the second contact plate 81 of the first functional cylinder 8 can return upward. The liquid medium inside the fourth functional cylinder 21 enters the first functional cylinder 8 through the conduit 22. The limiting block 20 leaves the limiting groove 71 to release the axial limit on the second support block 7. The second functional cylinder 15 contracts synchronously. The extension speed of the third functional cylinder 19 is the same as the contraction speed of the second functional cylinder 15. The punch 5, the first support block 6 and the second support block 7 can move downward together to achieve the axial separation between the planar blank 91 and the strip 9. The planar blank 91 enters the guiding sleeve 18 between the punch 5 and the first support block 6.

[0069] Reference Figure 6 Figure 6 , the third functional cylinder 19 drives the punch 5 to continue moving upward to realize the return of the punch 5. The first magnetic block 61 of the first support block 6 adsorbs the flat blank 91, and the flat blank 91 stays on the top of the first support block 6. The second functional cylinder 15 drives the first support block 6 and the flat blank 91 into the interior of the material trough 14 to realize the single collection of the flat blank 91. At this time, the first support block 6 stops moving, and the second functional cylinder 15 drives the second support block 7 to continue moving downward. Reference Figure 8 Figure 8 , at this time, the second support block 7 rotates relative to the first support block 6 to release the threaded connection between the second support block 7 and the first support block 6, and the second support block 7 is separated from the first support block 6 to avoid interference of the second support block 7 with the conveyance of the conveyor belt 13.

[0070]

[0070] Repeating Step 2 and Step 3 can realize the continuous stamping and blanking of the metal strip 9 and the single collection of the flat blank 91. The flat blank 91 will be adsorbed on the material trough 14 of the conveyor belt 13, and the flat blank 91 can enter the next process one by one, such as bending processing or punching processing, etc.

[0071]

[0071] In the metal part stamping and forming system of this embodiment, a conveying structure is arranged below the stamping structure. The conveying structure is used for the collection of the flat blank 91. At the same time, the first support block 6 of the conveying structure supports the strip 9 during stamping and blanking. During punching, the strip 9 has no movement in the punching direction, reducing the pulling force generated by the punch 5 on the strip 9, ensuring the production stability and product quality. After punching, the first support block 6 can timely take away the flat blank 91 to realize the continuous processing of the stamping structure and the continuous collection and conveyance of the flat blank 91.

[0072]

[0072] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A metal part stamping and forming system, comprising an unwinding part for discharging a strip, a winding part for recycling the strip, and a stamping structure for realizing stamping and blanking of the strip. The stamping structure is located between the unwinding part and the winding part, and the strip is recycled by the winding part after punching and blanking by the stamping structure through the unwinding part. It is characterized in that, It further includes a conveying structure for collecting and conveying the flat blank. The conveying structure includes a conveyor belt and a second functional cylinder. The conveyor belt is located below the stamping structure. A plurality of material grooves are evenly arranged on the conveying path of the conveyor belt. Each material groove is internally provided with a first support block. The second functional cylinder is vertically arranged. The working end of the second functional cylinder is rotatably connected with a second support block. The conveyor belt is provided with a through hole communicating with the material groove. The through hole is used for accommodating the second support block to pass through. After the second support block enters the material groove from the through hole, it is combined with the first support block. The stamping structure includes a punch and a die sleeve. The outer edge of the punch matches the inner hole of the die sleeve. The punch punches and cuts the strip above the die sleeve to form a blank. The first support block matches the inner hole of the die sleeve. The second functional cylinder is used to drive the first support block into the inner hole of the die sleeve. The first support block fills the inner hole of the die sleeve to support the strip above the die sleeve. The flat blank is formed between the first support block and the punch. A first magnet for adsorbing the flat blank is arranged inside the first support block. After the flat blank is formed, the second functional cylinder drives the first support block and the flat blank into the interior of the material groove. The first support block is separated from the second support block to avoid the second support block interfering with the conveyor belt during conveying.

2. The metal part stamping and forming system according to claim 1, characterized in that A connecting column is arranged at the top of the second support block. The upper part of the connecting column is a threaded part, and the lower part of the connecting column is a smooth rod part. A connecting hole is arranged at the bottom surface of the first support block. An internal thread is arranged at the bottom of the connecting hole. The internal thread matches the threaded part. The helix angle of the external thread of the threaded part is greater than 45°.

3. The metal part stamping and forming system according to claim 2, characterized in that, A limiting groove is arranged on the side surface of the second support block. The stamping structure is provided with a limiting block. The limiting block is slidably connected with the lower template in the horizontal direction. When the first support block fills the inner hole of the die sleeve, the positions of the limiting groove and the limiting block are horizontally corresponding. The limiting block is used to enter the limiting groove to axially limit the second support block.

4. The metal part stamping and forming system according to claim 3, characterized in that, It further includes a fourth functional cylinder. The working end of the fourth functional cylinder is fixedly connected with the limiting block. The axis of the fourth functional cylinder is horizontally arranged. The fourth functional cylinder is used to drive the limiting block to move in the horizontal direction.

5. The metal stamping forming system according to claim 4, characterized in that, A second piston and one end of a second piston rod are arranged inside the fourth functional cylinder. The side of the second piston away from the second piston rod is filled with a liquid medium. The other end of the second piston rod extends out of the fourth functional cylinder and is fixedly connected with the limiting block. A fourth elastic member is arranged between the second piston and the end of the fourth functional cylinder. The fourth elastic member is used to keep the fourth functional cylinder in a contracted state.

6. The metal part stamping and forming system according to claim 5, characterized in that, It further includes a first functional cylinder, the axis of the first functional cylinder is vertically arranged, a first piston and one end of a first piston rod are arranged inside the first functional cylinder, a third elastic member is arranged between the first piston and the end of the first functional cylinder, the third elastic member is used to maintain the extended state of the fourth functional cylinder, the other end of the first piston rod extends out from the upper part of the first functional cylinder, the space below the first piston communicates with the fourth functional cylinder, the space below the first piston is used to fill a liquid medium, and the liquid medium inside the first functional cylinder enters the fourth functional cylinder to drive the limit block by the fourth functional cylinder.

7. The metal part stamping and forming system according to claim 6, wherein The stamping structure includes an upper template, a movable template and a lower template. The movable template is located between the upper template and the lower template and slides along the guiding struts. The guiding struts are fixedly located between the upper template and the lower template and have a vertically arranged axis. The die sleeve is fixedly arranged on the lower template. A third functional cylinder is arranged on the upper template. The working end of the third functional cylinder is fixedly connected to a punch through a connecting rod. The third functional cylinder is used to drive the punch to move to achieve a punching action. A push plate is arranged on the connecting rod. The first functional cylinder is fixedly connected to the upper template, and the position of the first functional cylinder corresponds to the position of the push plate. The push plate is used to push the first piston of the first functional cylinder to form an axial movement of the first piston downward, so that the liquid medium inside the first functional cylinder enters the fourth functional cylinder.

8. The metal part stamping and forming system according to claim 7, wherein, A fixed sleeve is fixedly arranged on the connecting rod, and a rotating sleeve is rotatably connected to the outside of the fixed sleeve. The push plate is fixedly connected to one side of the rotating sleeve. A guiding seat is arranged on the top of the upper template. A contact surface is arranged on one side of the guiding seat opposite to the push plate. The contact surface includes a vertical contact surface at the lower part and an inclined contact surface at the upper part. A second elastic member is arranged between the rotating sleeve and the fixed sleeve. The second elastic member is used to twist the rotating sleeve relative to the fixed sleeve to keep the contact surface between the push plate and the guiding seat in contact.

9. The metal part stamping and forming system according to claim 8, wherein, When the push plate contacts the inclined contact surface of the guiding seat, the limit block is located inside the limit groove of the second support block. When the push plate contacts the vertical contact surface of the guiding seat, the liquid medium enters the inside of the first functional cylinder from the fourth functional cylinder through a conduit, and the fourth functional cylinder drives the limit block to leave the limit groove of the support block.

10. The metal stamping forming system according to any one of claims 1-9, characterized in that, The material groove is provided with a second magnet for adsorbing the first support block.

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