A metal part stamping forming system and stamping structure thereof

Abstract

The present invention discloses a metal part stamping and forming system and its stamping structure. The metal part stamping and forming system includes a stamping structure for realizing the stamping and blanking of a material strip and a conveying structure for collecting and conveying a flat blank. The conveying structure includes a conveyor belt and a second functional cylinder. A plurality of material troughs are evenly arranged on the conveying path of the conveyor belt. A first support block is arranged inside each material trough. The working end of the second functional cylinder is rotatably connected to the second support block. The stamping structure includes a punch and a die sleeve. The second support block can move between the material trough and the die sleeve with the first support block. The first support block can be filled in the inner hole of the die sleeve during stamping to support the metal material strip and the punch, thereby reducing the pulling of the punch on the material strip. After the punching is completed, the first support block can carry the obtained metal flat blank into the material block to realize the collection and conveyance of the metal flat blanks one by one, so as to facilitate the processing of the flat blank in the next step.

Description

Technical Field

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

[0002] In the field of metal stamping, continuous stamping of metal strips is a key process for the efficient production of sheet metal parts. The traditional process typically involves two core steps: blanking and bending. A common technique involves blanking the desired shape from the strip, followed by three-dimensional shaping using a press brake or die.

[0003] Blanking and bending are often completed on different equipment or production lines. Flat blanks after stamping and blanking are usually stacked and collected. When entering the bending process, they need to be separated manually or mechanically one by one and then sent to the bending machine for processing. This process is inefficient. Some companies use robots to grab flat blanks for bending, but because the stacked blanks stick together or have inconsistent postures, manual intervention is still required, making it difficult to achieve fully automatic continuous production. Summary of the Invention

[0004] The present invention addresses the problem in the prior art that the flat blanks after stamping and blanking are collected in a centralized manner, which makes it inconvenient to separate the materials for subsequent bending processing. Instead, the present invention proposes a metal part stamping forming system and a stamping structure thereof, which collects and conveys the flat blanks one by one after stamping and blanking, thereby facilitating the processing of the flat blanks in the next step.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A metal part stamping forming system comprises a unwinding member for unwinding a material strip, a rewinding member for recovering the material strip, and a stamping structure for realizing stamping and blanking of the material strip, the stamping structure is located between the unwinding member and the rewinding member, the material strip is recovered by the rewinding member after being punched and blanked by the stamping structure from the unwinding member, and is characterized in that it also comprises a conveying structure for collecting and conveying flat blanks, the conveying structure comprises a conveyor belt and a second functional cylinder, the conveyor belt is located below the stamping structure, a plurality of material troughs are evenly arranged on the conveying path of the conveyor belt, a first support block is arranged inside each material trough, the second functional cylinder is vertically arranged, the working end of the second functional cylinder is rotatably connected to the second support block, the conveyor belt is provided with a through hole connected to the material trough, the through hole is used to accommodate the second support block to pass through, and the second support block is combined with the first support block after entering the material trough from the through hole;

[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 material strip above the die sleeve. 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 material strip above the die sleeve. The flat blank is formed between the first support block and the punch. A first magnetic block for adsorbing the flat blank is provided inside the first support block. After the flat blank is formed, the second functional cylinder brings the first support block and the flat blank into the interior of the material trough. The first support block is separated from the second support block to avoid the second support block from interfering with the conveyor belt.

[0008] Preferably, a connecting column is provided on 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 provided on the bottom surface of the first support block, and an internal thread is provided 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 provided on the side of the second support block, and a limiting block is provided on the stamping structure. The limiting block is slidably connected to the lower template in the horizontal direction. When the first support block is filled in the inner hole of the mold sleeve, the positions of the limiting groove and the limiting block correspond horizontally, and 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, a limiting block fixedly connected to the working end of the fourth functional cylinder, the axis of the fourth functional cylinder is horizontally arranged, and 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 the second piston rod are provided inside the fourth functional cylinder, the side of the second piston away from the second piston rod is used to fill the liquid medium, the other end of the second piston rod extends from the fourth functional cylinder and is fixedly connected to the limit block, and a fourth elastic member is provided between the second piston and the end of the fourth functional cylinder, and the fourth elastic member is used to maintain the contracted state of the fourth functional cylinder.

[0012] Preferably, it also includes a first functional cylinder, the axis of the first functional cylinder is vertically arranged, the first functional cylinder is provided with a first piston and one end of a first piston rod, a third elastic member is provided 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 from the upper part of the first functional cylinder, the space below the first piston is connected to the fourth functional cylinder, the space below the first piston is used to fill the liquid medium, the liquid medium inside the first functional cylinder enters the fourth functional cylinder to realize the driving of the limit 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 guide pillar, the guide pillar is fixedly located between the upper template and the lower template with its axis vertically arranged, the die sleeve is fixedly arranged on the lower template, a third functional cylinder is provided 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 a punching action, and a push plate is provided 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 fourth functional cylinder.

[0015] Preferably, a fixed sleeve is fixedly provided on the connecting rod, a rotating sleeve is rotatably connected to the outside of the fixed sleeve, and the push plate is fixedly connected to one side of the rotating sleeve;

[0016] A guide seat is provided at the top of the upper template, and a contact surface is provided on the side of the guide seat opposite to the push plate. The contact surface includes a vertical contact surface located at the bottom and an inclined contact surface located at the top. The rotating sleeve and the fixed sleeve are provided with a second elastic member, and the second elastic member is used to realize the twisting of the rotating sleeve relative to the fixed sleeve to keep the push plate in contact with the contact surface of the guide seat.

[0017] Preferably, when the push plate contacts the inclined contact surface of the guide seat, the limit block is located inside the limit groove of the second support block. When the push plate contacts the vertical direct contact surface of the guide seat, the liquid medium enters the interior of the first functional cylinder from the fourth functional cylinder through the conduit, and the fourth functional cylinder carries the limit block out of the limit groove of the support block.

[0018] Preferably, the material trough is provided with a second magnetic block for adsorbing the first support block.

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

[0020] 1. The metal parts stamping forming system is provided with a stamping structure for stamping and blanking metal strips and a conveying structure for collecting and conveying flat blanks. The conveying structure is provided with two support blocks. The second support block can move between the material trough and the die sleeve with the first support block. The first support block can be filled in the inner hole of the die sleeve during stamping to support the metal strip and the punch, thereby reducing the pulling of the punch on the strip. After the punching is completed, the first support block can carry the obtained metal flat blank into the material block to realize the collection and conveyance of the metal flat blanks one by one, which is convenient for the next step of processing of the flat blank.

[0021] 2. During stamping, the metal part stamping forming system can support the second support block through the limit block to maintain the effective and stable support function of the first support block on 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 used for stamping. During the stamping process, the limit block can be controlled according to the position of the punch to realize the supporting effect of the first support block during stamping and the timely release of the supporting effect of the first support block after stamping is completed, so as to facilitate the first support block to carry the metal flat blank out of the die sleeve, which is beneficial to the timely collection and transportation of the flat blank. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 2 This is a schematic diagram of the stamping structure of the metal parts stamping forming system

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

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

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

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

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

[0029] Figure 8 This is a structural diagram of the material trough of the metal parts 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. Material strip; 10. Unwinding element; 11. Rewinding element; 12. Limit roller assembly; 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 channel; 41. Support plate; 42. Die sleeve; 51. Connecting rod; 52. Rotating sleeve; 53. Fixed sleeve; 54. Push plate; 541. First contact plate; 61. First magnetic block; 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 magnetic block; 191. Connecting seat; 211. Second piston rod; 212. Second piston; 213. Fourth elastic member. DETAILED DESCRIPTION

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

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

[0034] refer to Figure 1 The unwinding member 10 includes an unwinding roller and a first motor for driving the unwinding roller to rotate. The unprocessed material strip 9 is wound around the unwinding roller, and the first motor drives the unwinding roller to rotate to unwind the material strip 9. The winding member 11 includes a winding roller and a second motor for driving the winding roller to rotate. The processed material strip 9 is wound around the winding roller, and the second motor drives the winding roller to rotate to recycle the material 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 guide rollers distributed up and down. The material strip 9 passes between the two guide rollers, and the guide rollers limit the material strip 9.

[0035] For further reference, Figure 2The 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 horizontally and parallel to each other, with the movable template 3 located between the upper template 2 and the lower template 4. A guide pillar 201 is also provided between the upper template 2 and the lower template 4. The guide pillar 201 is fixedly located between the upper template 2 and the lower template 4 with its axis arranged vertically. There are four guide pillars 201. The movable template 3 is slidably connected to the guide pillars 201. The guide pillars 201 are also connected to a first elastic member 202. The first elastic member 202 is connected between the movable template 3 and the lower template 4. The stretching force of the first elastic member 202 causes the movable template 3 to adhere to 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. 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 arranged vertically. The fifth functional cylinder 203 is used to drive the movable template 3 to move in the vertical direction. The material strip 9 is passed between the movable template 3 and the lower template 4, and the movable template 3 is used to apply pressure to the material strip 9 during stamping.

[0036] The base 1 of this metal stamping system is equipped with a support frame, wherein an unwinding member 10 and a rewinding member 11 are mounted on the support frame. The lower mold plate 4 is fixedly connected to the base 1, and the upper mold plate 2 is fixedly mounted on the support frame. The conveyor structure is also mounted on the base 1. The material strip 9 passes from the unwinding member 10 through the metal stamping die to be punched and blanked, and then is recovered by the rewinding member 11, realizing continuous feeding, punching, and discharge of the material strip 9.

[0037] refer to 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 supporting wheels are rotatably connected to the base 1. The base 1 is equipped with a third motor (not shown) for driving the conveyor wheels. The output shaft of the third motor is coaxially connected to the conveyor wheel. The third motor can drive one conveyor wheel to rotate, realizing the conveying function of the conveyor belt 13.

[0038] Furthermore, the conveyor belt 13 is provided with a plurality of material troughs 14, and the plurality of material troughs 14 are evenly distributed on the conveying path of the conveyor belt 13. A first support block 6 is provided inside each material trough 14, Figure 8 The side wall of the material trough 14 is provided with a second magnetic block 141 , which can adsorb the first support block 6 and keep the first support block 6 inside the material trough 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. Its axis is vertically arranged, and its working end is located at its upper end. The working end of the second functional cylinder 15 is rotatably connected to the second support block 7. The second functional cylinder 15 drives the second support block 7 to move axially, thereby raising and lowering the second support block 7.

[0040] Furthermore, the bottom of the material trough 14 is provided with a through hole, and the conveyor belt 13 is provided with a plurality of through holes 131. The through holes 131 correspond to the positions of the material trough 14 and are connected to the material trough 14. The through holes 131 are used to accommodate the second support block 7. Driven by the second functional cylinder 15, the second support block 7 enters the material trough 14 through the through holes 131 and engages with the first support block 6 inside the material trough 14.

[0041] refer to Figure 8 A connecting column 72 is provided on the top of the second support block 7, and a connecting hole 62 is provided on 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. The connecting column 72 can be inserted into the interior of the connecting hole 62 to realize the plug-in connection between the connecting column 72 and the connecting hole 62.

[0042] Furthermore, the upper portion of the connecting column 72 is a threaded portion 73, and the lower portion of the connecting column 72 is a polished portion. The bottom surface of the first support block 6 is provided with a connecting hole 62, and the bottom of the connecting hole 62 is provided with an internal thread. The threaded portion 73 is an external thread, and the internal thread matches the threaded portion 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, achieving a threaded connection between the internal thread of the connecting hole 62 of the first support block 6 and the threaded portion 73 on the connecting column 72.

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

[0044] refer to Figure 3 and Figure 4 The lower die plate 4 of the aforementioned stamping structure is provided with a support plate 41 for supporting the material strip 9. A die sleeve 42 is provided on the support plate 41 for punching and blanking. C-shaped material strip retaining slots with upward openings are provided at both ends of the lower die plate 4. The material strip 9 enters the lower die plate 4 through the material strip retaining slot at the first end, passes through the support plate 41 and die sleeve 42, and exits the lower die plate 4 through the material strip retaining slot at the second end.

[0045] The upper die plate 2 is provided with a punch 5, with a cutout below it. The position of the punch 5 corresponds to that of the die sleeve 42. The outer edge of the cutout of the punch 5 matches the inner hole of the die sleeve 42. When the material strip 9 passes over the die sleeve 42, the punch 5 can pass through the die sleeve 42 from above to blank the material strip 9. The upper die plate 2 is provided with a third functional cylinder 19, which 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 arranged vertically, and the third functional cylinder 19 is used to drive the punch 5 to move in the vertical direction to achieve blanking.

[0046] The working end of the third functional cylinder 19 is provided with a connecting seat 191, which is connected to the punch 5 via 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 passes through the upper plate 2 and extends to the bottom of the upper plate 2. The movable plate 3 is provided with a receiving channel 31 that passes through the movable plate 3 to accommodate the punch 5 for resting or moving.

[0047] The lower mold plate 4 is provided with a blanking cavity below the mold sleeve 42. A guide sleeve 18 is located within the blanking cavity and is fixedly connected to the lower mold plate 4. The inner bore of the guide sleeve 18 communicates with the mold sleeve 42 and mates with the outer edges of the first support block 6 and the second support block 7. The position of the guide sleeve 18 corresponds to that of the second functional cylinder 15, which pushes the second support block 7 and the first support block 6. The second support block 7 and the first support block 6 enter the guide sleeve 18 and move axially therein.

[0048] The motor in this embodiment is a stepper motor, controlled by pulse signals. Each pulse causes it to rotate a fixed angle, enabling intermittent conveying of conveyor belt 13. When conveyor belt 13 stops, the position of material trough 14 aligns with the position of second functional cylinder 15, and through-hole 131 of conveyor belt 13 aligns with the position of second support block 7, allowing second support block 7 to pass through through-hole 131 and into material trough 14.

[0049] In this embodiment, the first support block 6 matches the inner hole of the die sleeve 42. When the material strip 9 is punched, 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 the first support block 6 can support the material strip 9 above the die sleeve 42, so that the material strip 9 does not move in the punching direction during punching, reducing the pulling of the punch 5 on the material strip 9.

[0050] Furthermore, a limiting groove 71 is provided on the side of the second support block 7. A limiting block 20 and a fourth functional cylinder 21 are mounted on the guide sleeve 18. The limiting block 20 and the guide sleeve 18 are slidably connected in the horizontal direction. The working end of the fourth functional cylinder 21 is fixedly connected to the limiting block 20. The axis of the fourth functional cylinder 21 is set horizontally, and the fourth functional cylinder 21 is used to drive the limiting block 20 to move horizontally. When the first support block 6 is filled in the inner hole of the die sleeve 42, the limiting groove 71 and the position of the limiting block 20 are horizontally aligned. The fourth functional cylinder 21 can drive the limiting block 20 to move. 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 axial support force when punching the strip 9.

[0051] Furthermore, a first magnetic block 61 is provided inside the first support block 6, and the first magnetic block 61 can attract the flat blank 91. After punching is completed, the punch 5 continues to move downward, and the flat blank 91 is separated from the material strip 9 in the vertical direction. The flat blank 91 enters the guide sleeve 18 between the punch 5 and the first support block 6. The third functional cylinder 19 brings the punch 5 back upward, and the first magnetic block 61 of the first support block 6 attracts 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 bring the first support block 6 and the flat blank 91 into the interior of the material trough 14 to achieve individual collection of the flat blanks 91.

[0052] In this embodiment, the second functional cylinder 15 can move the second support block 7 axially, thereby enabling the first support block 6 to move 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, achieving a threaded connection between the second support block 7 and the first support block 6, thereby completing the connection between the second support block 7 and the first support block 6. When stamping is completed, the second functional cylinder 15 moves downward with the second support block 7 and the first support block 6. The first support block 6 leaves the interior 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, releasing the threaded connection between the second support block 7 and the first support block 6. The second support block 7 is separated from the first support block 6 to prevent the second support block 7 from interfering with the transmission of the conveyor belt 13. The material trough 14 with the flat blank 91 is conveyed by the conveyor belt 13 away from the top of the second support block 7. The new material trough 14 comes to the top of the second support block 7, realizing the continuous collection and transmission of the flat blank 91.

[0053] refer to Figure 7 A second piston 212 and one end of a second piston rod 211 are provided inside the fourth functional cylinder 21. The side of the second piston 212 away from the second piston rod 211 is used to fill the liquid medium. The other end of the second piston rod 211 extends from the fourth functional cylinder 21 and is fixedly connected to the limit block 20. A fourth elastic member 213 is provided between the second piston 212 and the end of the fourth functional cylinder 21. The fourth elastic member 213 is used to maintain the contraction state of the fourth functional cylinder 21.

[0054] Furthermore, a first functional cylinder 8 is fixedly mounted on the upper mold plate, with its axis vertically disposed. A first piston 83 and one end of a first piston rod 82 are disposed within the first functional cylinder 8. A third elastic member 84 is disposed between the first piston 83 and the end of the first functional cylinder 8. The third elastic member 84 is used to maintain the fourth functional cylinder 21 in an extended state. The other end of the first piston rod 82 extends from the upper portion of the first functional cylinder 8. The space below the first piston 83 is connected to the fourth functional cylinder 21 via a conduit 22. The space below the first piston 83 is filled with a liquid medium. In this embodiment, the liquid medium is hydraulic oil. The liquid medium within the first functional cylinder 8 enters the fourth functional cylinder 21 through the conduit 22, enabling the fourth functional cylinder 21 to drive the limit block 20.

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

[0056] The position of the first functional cylinder 8 corresponds to that of the push plate 54. A second contact plate 81 is disposed on top of the first piston rod 82, and a first contact plate 541 is disposed below the push plate 54. The first contact plate 541 is configured to contact the second contact plate 81. The push plate 54 pushes the second contact plate 81 downward, causing the first piston 83 to move downward, allowing the liquid medium within the first functional cylinder 8 to enter the fourth functional cylinder 21.

[0057] Furthermore, a guide seat 16 is provided at the top of the upper mold plate 2. A contact surface is provided on one side of the guide seat 16 opposite the push plate 54. The contact surface includes a first vertical direct contact surface, a second vertical direct contact surface, and an inclined contact surface. The first vertical direct contact surface is located above the second vertical direct contact surface, and the inclined contact surface is located between the first and second vertical direct contact surfaces. A rotating sleeve 52 is externally rotatably connected to the fixed sleeve 53, and the push plate 54 is fixedly connected to one side of the rotating sleeve 52. A second elastic member, a torsion spring, is provided between the rotating sleeve 52 and the fixed sleeve 53. The second elastic member is configured to allow the rotating sleeve 52 to twist relative to the fixed sleeve 53, maintaining contact between the push plate 54 and the contact surface of the guide seat 16. When the push plate 54 contacts the inclined contact surface or the first vertical direct contact surface of the guide seat 16, the push plate 54 is located above the second contact plate 81. When the push plate 54 contacts the second vertical direct contact surface of the guide seat 16, the push plate 54 moves away from the second contact plate 81.

[0058] A cover 17 may also be provided on the top of the upper template 2 , and the cover 17 is used to shield the guide seat 16 , the first functional cylinder 8 and the push plate 54 , thereby playing a protective role and reducing 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, initially, the fixed sleeve 53 and push plate 54 move synchronously with the punch 5. The push plate 54 pushes the second contact plate 81 downward, causing the first piston 83 to move downward. The liquid medium inside the first functional cylinder 8 enters the fourth functional cylinder 21 through the conduit 22, and the limit block 20 enters the limit groove 71 to axially limit the second support block 7. The punch 5 continues to move downward, punching and cutting the material strip 9. During this process, the push plate 54 successively contacts the first contact surface and the inclined contact surface of the guide seat 16. The punch 5 continues to move downward, at this time the push plate 54 leaves the inclined contact surface of the guide seat 16, the push plate 54 leaves the top of 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 limit block 20 leaves the limit groove 71, and the axial limit on the second support block 7 is released. The punch 5, the first support block 6 and the second support block 7 can move downward together to achieve axial separation between the flat blank 91 and the material strip 9.

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

[0061] Step 1: Processing preparation.

[0062] The material strip 9 is unwound from the unwinding member 10, enters the lower template 4 from the material strip limiting slot at the first end of the lower template 4, passes through the support plate 41 and the mold sleeve 42, and leaves the lower template 4 from the material strip limiting slot at the second end and is recovered by the rewinding member 11;

[0063] At this time, the movable template 3 is attached to the upper template 2, the punch 5 is located in the accommodating channel 31 of the movable template 3, the second functional cylinder 15 is in a retracted state, the second support block 7 is in 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 conveying wheel carries the conveyor belt 13 for conveying. When the material trough 14 corresponds to the position of the second functional cylinder 15, the conveyor belt 13 stops conveying, and 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, and 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 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. The second support block 7 is at the upper limit position, and the first support block 6 is located inside the die sleeve 42 and fills the inner hole of the die sleeve 42;

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

[0067] Step 3: Collection of flat blanks

[0068] After the punching is completed, the third functional cylinder 19 drives the punch 5 to continue to move downward. At this time, the push plate 54 just leaves the inclined contact surface of the guide seat 16, that is, the push plate 54 leaves the top of 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, and the liquid medium inside the fourth functional cylinder 21 enters the first functional cylinder 8 through the conduit 22. The limit block 20 leaves the limit groove 71, releasing the axial limit on the second support block 7, and 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 realize the axial separation between the flat blank 91 and the material strip 9. The flat blank 91 enters the guide sleeve 18 between the punch 5 and the first support block 6.

[0069] refer to Figure 6 , the third functional cylinder 19 drives the punch 5 to continue to move upward, realizing 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, and the second functional cylinder 15 brings 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 brings the second support block 7 to continue to move downward. Figure 8 At this time, the second support block 7 rotates relative to the first support block 6, releasing 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 prevent the second support block 7 from interfering with the transmission of the conveyor belt 13.

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

[0071] The metal parts stamping forming system in this embodiment is provided with a conveying structure at the lower part of the stamping structure, which is used to collect the flat blank 91. At the same time, the first support block 6 of the conveying structure can support the material strip 9 during stamping and blanking. The material strip 9 does not move in the punching direction during punching, thereby reducing the pulling of the punch 5 on the material strip 9 and ensuring the stability of production and product quality. After punching is completed, the first support block 6 can take away the flat blank 91 in time, thereby realizing the continuous processing of the stamping structure and the continuous collection and conveyance of the flat blank 91.

[0072] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A metal stamping forming system, comprising an unwinding member for unwinding a material strip, a rewinding member for recovering the material strip, and a stamping structure for stamping and blanking the material strip, wherein the stamping structure is located between the unwinding member and the rewinding member, and the material strip passes through the unwinding member, is punched and blanked by the stamping structure, and is then recovered by the rewinding member, characterized in that: It also includes a conveying structure for collecting and conveying flat blanks, the conveying structure including a conveyor belt and a second functional cylinder, the conveyor belt is located below the stamping structure, a plurality of material troughs are evenly arranged on the conveying path of the conveyor belt, each of the material troughs is provided with a first support block, the second functional cylinder is vertically arranged, the working end of the second functional cylinder is rotatably connected to the second support block, the conveyor belt is provided with a through hole connected to the material trough, the through hole is used to accommodate the second support block to pass through, and the second support block enters the material trough through the through hole to achieve combination 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 blanks the material strip above the die sleeve, 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 material strip above the die sleeve, a flat blank is formed between the first support block and the punch, a first magnetic block for adsorbing the flat blank is provided inside the first support block, after the flat blank is formed, the second functional cylinder brings the first support block and the flat blank into the interior of the material trough, the first support block is separated from the second support block to prevent the second support block from interfering with the conveyor belt; The top of the second support block is provided with a connecting column, the upper part of the connecting column is a threaded portion, and the lower part of the connecting column is a polished rod portion. The bottom surface of the first support block is provided with a connecting hole, and the bottom of the connecting hole is provided with an internal thread, the internal thread matches the threaded portion, and the helix angle of the external thread of the threaded portion is greater than 45°; A limiting groove is provided on the side of the second support block, and a limiting block is provided on the stamping structure. The limiting block is slidably connected to the lower template in the horizontal direction. When the first support block is filled in the inner hole of the mold sleeve, the positions of the limiting groove and the limiting block correspond horizontally, and the limiting block is used to enter the limiting groove to axially limit the second support block.

2. The metal part stamping forming system according to claim 1, characterized in that: It also includes a fourth functional cylinder, a limiting block fixedly connected to the working end of the fourth functional cylinder, the axis of the fourth functional cylinder is horizontally arranged, and the fourth functional cylinder is used to drive the limiting block to move in the horizontal direction.

3. The metal part stamping forming system according to claim 2, characterized in that: A second piston and one end of a second piston rod are provided inside the fourth functional cylinder. The side of the second piston away from the second piston rod is used to fill the liquid medium. The other end of the second piston rod extends from the fourth functional cylinder and is fixedly connected to the limit block. A fourth elastic member is provided 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.

4. The metal part stamping forming system according to claim 3, characterized in that: It also includes a first functional cylinder, the axis of which 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, and 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 from the upper part of the first functional cylinder, the space below the first piston is connected to the fourth functional cylinder, the space below the first piston is used to fill with liquid medium, and the liquid medium inside the first functional cylinder enters the fourth functional cylinder to realize the driving of the limit block by the fourth functional cylinder.

5. The metal part stamping forming system according to claim 4, characterized in that: 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 guide pillar. The guide pillar is fixed between the upper template and the lower template with its axis vertically arranged. The die sleeve is fixedly arranged on the lower template. A third functional cylinder is provided 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 a punching action. A push plate is provided 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.

6. The metal part stamping forming system according to claim 5, characterized in that: A fixed sleeve is fixedly provided on the connecting rod, a rotating sleeve is rotatably connected to the outside of the fixed sleeve, and the push plate is fixedly connected to one side of the rotating sleeve; A guide seat is provided on the top of the upper template, and a contact surface is provided on the side of the guide seat opposite to the push plate. The contact surface includes a vertical contact surface located at the bottom and an inclined contact surface located at the top. The rotating sleeve and the fixed sleeve are provided with a second elastic member, and the second elastic member is used to realize the twisting of the rotating sleeve relative to the fixed sleeve to keep the push plate in contact with the contact surface of the guide seat.

7. The metal part stamping forming system according to claim 6, characterized in that: When the push plate contacts the inclined contact surface of the guide seat, the limit block is located inside the limit groove of the second support block. When the push plate contacts the vertical direct contact surface of the guide seat, the liquid medium enters the interior of the first functional cylinder from the fourth functional cylinder through the conduit, and the fourth functional cylinder carries the limit block out of the limit groove of the support block.

8. The metal part stamping forming system according to any one of claims 1 to 7, characterized in that: The material trough is provided with a second magnetic block for adsorbing the first supporting block.

Images