A workpiece rotary punching die

Abstract

The present invention relates to the field of mold technology, and more particularly to a workpiece rotary punching mold, which comprises a lower mold and an upper mold mounted on the lower mold; a positioning die head is rotatably provided on the lower mold, and the lower mold is also equipped with a die head rotary driving member; a plurality of bases are equidistantly provided at the bottom of the upper mold, and a plurality of through-holes are penetrated through the front end of the base, and punching pressure pins are movably provided in the through-holes, and a plurality of through-holes are distributed in an array; a pressure pin disc is rotatably provided at the top of the upper mold, and the upper mold is equipped with a disc driving assembly for driving the pressure pin disc to rotate, and a rotating plate is rotatably provided at the bottom of the upper mold; a plurality of pressing parts are equidistantly provided at the bottom of the rotating plate. The present invention has a novel structure, and the punching pressure pins are distributed in an array, so that the holes formed after punching the corresponding positions of the workpiece are also distributed in an array, which is convenient for punching the outer peripheral wall of the workpiece, has high work efficiency, does not cause deformation of the workpiece, and has a reliable structure.

Description

Technical Field

[0001] The invention relates to the technical field of moulds, in particular to a workpiece rotary punching mould. Background Art

[0002] like Figure 1 and Figure 2 As shown, a workpiece 100 is in the shape of a truncated cone, and a plurality of mesh holes 101 are evenly and regularly distributed on its outer wall. The mesh holes 101 are regularly arranged in straight lines when viewed from any direction. If a long flat punch is used for punching, the above distribution of the mesh holes 101 cannot be achieved. In the prior art, there are also five-axis CNC drilling or laser punching methods. The current conventional practice is to punch holes by stretching or hanging. The above methods are likely to cause deformation of the workpiece or affect the appearance of the workpiece. Summary of the invention

[0003] In view of the problems of the prior art, the present invention provides a workpiece rotary punching die with a novel structure. The punching pins are distributed in an array, so that the holes formed after punching the corresponding positions of the workpiece are also distributed in an array. Then the die head rotating drive component continues to drive the positioning die head to adjust the position of the workpiece, which is convenient for array punching of the outer peripheral wall of the workpiece. The work is efficient and easy to operate, and the workpiece can be punched accurately. Since it is a local and sequential processing, it will not cause deformation of the workpiece and the structure is reliable.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The present invention provides a workpiece rotary punching die, comprising a lower die and an upper die mounted on the lower die; a positioning die head is rotatably arranged on the lower die, and the lower die is also equipped with a die head rotation driving member for driving the positioning die head to rotate;

[0006] The bottom of the upper die is provided with a plurality of pedestals at equal intervals, the pedestals are located at the periphery of the positioning die head, the front end of the pedestals is penetrated with a plurality of through holes, a punching needle is movably arranged in the through holes, the plurality of through holes are distributed in an array, and the bottom end of the punching needle faces the positioning die head;

[0007] A pressure needle disc is rotatably provided on the top of the upper die, and the upper die is equipped with a disc driving assembly for driving the pressure needle disc to rotate. A rotating plate is rotatably provided on the bottom of the upper die, and the rotating plate is coaxially connected to the pressure needle disc; a plurality of pressing parts for pressing the top of the punching pressure needle are evenly spaced at the bottom of the rotating plate.

[0008] Among them, the disc driving assembly includes a cylinder and a driving seat connected to the output end of the cylinder, the driving seat is slidably arranged on the upper mold, the cylinder is installed on one side of the upper mold, and a movable block is movably arranged on the side of the driving seat close to the pressing needle disc, and a first hook block is arranged on the side of the movable block close to the pressing needle disc, and a plurality of hook grooves are evenly spaced on the outer edge of the pressing needle disc, and the first hook block is arranged corresponding to the hook groove.

[0009] Wherein, the driving seat is provided with a movable groove, the movable block is movably arranged in the movable groove, a first return spring is arranged in the movable groove, and two ends of the first return spring are respectively connected to the inner wall of the movable groove and the movable block.

[0010] Among them, a disc positioning block is rotatably arranged on the upper mold, a second hook block is arranged at the front end of the disc positioning block, the second hook block is arranged corresponding to the hook groove, and a connecting column is also arranged on the upper mold, the connecting column is connected to a second return spring, and the end of the second return spring away from the connecting column is connected to the disc positioning block.

[0011] Wherein, the pressing component comprises a plurality of pressing protrusions arranged at equal intervals, and the plurality of pressing protrusions are distributed in an inclined arc shape.

[0012] Among them, a plurality of support seats are evenly spaced on the top of the lower mold, and a support groove is opened on the support seat, and the base is accommodated in the support groove.

[0013] Beneficial effects of the present invention:

[0014] The present invention has a novel structure. When working, the upper die and the lower die are opened away from each other, the workpiece is placed on the positioning die head, and the die head rotating drive component drives the positioning die head to adjust the position of the workpiece, the upper die and the lower die are molded together, and the base is located at the outer periphery of the positioning die head. When the workpiece starts to be punched, the disc driving component drives the pressure needle disc to rotate, which drives the rotating plate to rotate, and presses the punching pressure needle in the perforation through the pressing component so that the punching pressure needle extends out of the perforation to punch the workpiece, wherein the punching pressure needles are distributed in an array, so that the hole positions formed after punching the corresponding positions of the workpiece are also distributed in an array, and then the die head rotating drive component continues to drive the positioning die head to adjust the position of the workpiece, and then punching is performed, which is convenient for array punching of the outer peripheral wall of the workpiece. The work is efficient and the operation is simple, and the workpiece can be punched accurately. Since it is a local and successive processing, it will not cause deformation of the workpiece and the structure is reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of a truncated cone-shaped workpiece.

[0016] Figure 2 for Figure 1Schematic diagram of the structural distribution of the mesh on.

[0017] Figure 3 It is a structural schematic diagram of a workpiece rotary punching die of the present invention.

[0018] Figure 4 This is a schematic structural diagram from another perspective of a workpiece rotary punching die of the present invention.

[0019] Figure 5 It is a schematic structural diagram of the cooperation between the upper die and the workpiece of the present invention.

[0020] Figure 6 It is a structural schematic diagram of the upper mold of the present invention.

[0021] Figure 7 It is a structural sectional view of the upper mold of the present invention.

[0022] Figure 8 It is a schematic structural diagram of the cooperation between the rotating plate, the inclined block and the pressing component of the present invention.

[0023] Fig. 9 It is a structural schematic diagram of the lower mold of the present invention.

[0024] Fig.10 It is a schematic diagram of the structure after the punching pins distributed in two rows of arrays punch holes in the workpiece in the embodiment.

[0025] exist Figures 1 to 10 Reference numerals in the drawings include:

[0026] 1. Lower die; 2. Upper die; 3. Positioning die head; 4. Base; 5. Perforation; 6. Punching needle; 7. Needle pressing disc; 8. Rotating plate; 9. Pressing convex block; 10. Oblique block; 11. Inclined surface; 12. Cylinder; 13. Driving seat; 14. Movable block; 15. First hook block; 16. Hook groove; 17. Movable groove; 18. First return spring; 19. Disc positioning block; 20. Second hook block; 21. Connecting column; 22. Second return spring; 23. Support seat; 24. Support groove;

[0027] 100. workpiece; 101. mesh. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present invention. It is understood that the drawings are only provided for reference and illustration, and are not used to limit the present invention. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0029] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to another component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field of the present invention. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] It should also be noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] A workpiece rotary punching die, such as Figure 3 As Fig. 9 As shown, it comprises a lower die 1 and an upper die 2 mounted on the lower die 1; a positioning die head 3 is rotatably arranged on the lower die 1, and the lower die 1 is also equipped with a die head rotating driving member for driving the positioning die head 3 to rotate; wherein, the structural distribution between the upper die and the lower die 1 is similar to the prior art, and can realize the mutual separation and mold closing between the upper die 2 and the lower die 1, which will not be repeated here;

[0032] The bottom of the upper die 2 is provided with a plurality of bases 4 at equal intervals, the bases 4 are located at the periphery of the positioning die head 3, the front end of the base 4 is penetrated with a plurality of perforations 5, a punching press needle 6 is movably provided in the perforations 5, the plurality of perforations 5 are distributed in an array, and the bottom end of the punching press needle 6 faces the positioning die head 3; wherein a return spring is provided in the perforation 5, and the two ends of the return spring are respectively connected to the inner wall of the perforation 5 and the punching press needle 6, so as to facilitate the reset of the punching press needle 6;

[0033] A pressing needle disc 7 is rotatably provided at the top of the upper die 2, and the upper die 2 is equipped with a disc driving assembly for driving the pressing needle disc 7 to rotate. A rotating plate 8 is rotatably provided at the bottom of the upper die 2, and the rotating plate 8 is coaxially connected to the pressing needle disc 7; a plurality of pressing parts for pressing the top of the punching pressing needle 6 are evenly spaced at the bottom of the rotating plate 8.

[0034] Specifically, the present invention has a novel structure and an ingenious design. When working, the upper die 2 and the lower die 1 are opened away from each other, and the workpiece is placed on the positioning die head 3. The die head rotating drive component drives the positioning die head 3 to adjust the position of the workpiece, and the upper die 2 and the lower die 1 are molded together. The base 4 is located on the outer periphery of the positioning die head 3. When punching the workpiece, the disc driving assembly drives the pressure needle disc 7 to rotate, which drives the rotating plate 8 to rotate, and presses the punching pressure needle 6 in the perforation 5 through the pressing component so that the punching pressure needle 6 extends out of the perforation 5 to punch the workpiece, wherein the punching pressure needle 6 is distributed in an array, so that the hole positions formed after punching the corresponding positions of the workpiece are also distributed in an array, and then the die head rotating drive component continues to drive the positioning die head 3 to adjust the position of the workpiece, and then punching, which is convenient for array punching of the outer peripheral wall of the workpiece, and the work is efficient and the operation is simple; in addition, under the above setting, the workpiece can be punched accurately, and since it is a local and successive processing, it will not cause deformation of the workpiece, and the structure is reliable.

[0035] In this embodiment, the pressing component includes a plurality of pressing protrusions 9 arranged at equal intervals, and the plurality of pressing protrusions 9 are distributed in an inclined arc shape; the number of pressing protrusions 9 of each pressing component is the same as the number of horizontal rows of punching pins 6 on each base 4; wherein, the bottom of the rotating plate 8 is provided with a plurality of inclined blocks 10, and the plurality of inclined blocks 10 are distributed in a circular ring shape, and the inclined blocks 10 form an inclined surface 11 inwardly; or, the bottom of the rotating plate 8 is provided with an inclined block 10 arranged in a circular ring shape, and the inclined block 10 forms an inclined surface 11 inwardly; the pressing protrusions 9 of the pressing component are arranged on the inclined surface 11. Specifically, under this setting, the pressing needle disk 7 rotates once, driving different pressing protrusions 9 to drive the punching pins 6 in different horizontal rows to work and then punch the workpiece. When the number of rotations of the pressing needle disk 7 is the same as the number of horizontal rows of the punching pins 6, all the punching pins 6 on a base 4 can complete one punching.

[0036] Preferably, the plurality of punching needles 6 of each base 4 are arranged in two rows, each base 4 is provided with 22 punching needles 6, each pressing component includes 11 pressing protrusions 9, and each pressing protrusion 9 pushes out two punching needles 6 in the same row to perform punching; the mesh distribution diagram of the workpiece 100 after punching is as shown in FIG. Fig.10 shown.

[0037] Among them, under the above-mentioned setting, the pressing protrusion 9 can be rotated, thereby driving the punching needles 6 in different horizontal rows to punch the workpiece. At the same time, it can achieve needle avoidance and improve work accuracy.

[0038] In this embodiment, the disc drive assembly includes a cylinder 12 and a drive seat 13 connected to the output end of the cylinder 12, the drive seat 13 is slidably arranged on the upper mold 2, the cylinder 12 is installed on one side of the upper mold 2, and the drive seat 13 is movably arranged with a movable block 14 on the side close to the pressing needle disc 7, and the movable block 14 is arranged with a first hook block 15 on the side close to the pressing needle disc 7, and a plurality of hook grooves 16 are evenly spaced on the outer edge of the pressing needle disc 7, and the first hook block 15 is arranged corresponding to the hook groove 16. Specifically, when the present embodiment drives the pressing needle disc 7 to work, the cylinder 12 drives the driving seat 13 to move forward and backward, driving the movable block 14 to move forward and backward, and then driving the pressing needle disc 7 to rotate through the cooperation of the first hook block 15 and the hook groove 16. Under the rotation of the pressing needle disc 7, the pressing component is driven to rotate, and then the different pressing protrusions 9 are driven to push out the punching needles 6 to punch the workpiece; wherein, under the structural cooperation between the pressing needle disc 7 and the disc driving assembly, the indexing rotation of the rotating plate 8 is realized, and then the different pressing protrusions 9 are realized to push out the corresponding punching needles 6.

[0039] In this embodiment, the driving seat 13 is provided with a movable groove 17, the movable block 14 is movably arranged in the movable groove 17, a first reset spring 18 is arranged in the movable groove 17, and the two ends of the first reset spring 18 are respectively connected to the inner wall of the movable groove 17 and the movable block 14. Specifically, under the above setting, under the action of the first reset spring 18, the movable block 14 can be driven to reset; when the first reset spring 18 is in the initial state, the first hook block 15 extends into the hook groove 16, so that when the cylinder 12 drives the driving seat 13 to move, the movable block 14 moves, and the first hook block 15 drives the needle pressing disc 7 to rotate. After the first hook block 15 is separated from the current hook groove 16, it enters the next hook groove 16, so that it is convenient to drive the needle pressing disc 7 to rotate next time.

[0040] In this embodiment, a disc positioning block 19 is also rotatably provided on the upper mold 2, and a second hook block 20 is provided at the front end of the disc positioning block 19. The second hook block 20 is arranged corresponding to the hook groove 16. A connecting column 21 is also provided on the upper mold 2, and the connecting column 21 is connected to a second reset spring 22. The end of the second reset spring 22 away from the connecting column 21 is connected to the disc positioning block 19. Specifically, the pressing needle disc 7 rotates once, and the second hook block 20 is pushed out of the hook groove 16. At this time, the second reset spring 22 is compressed. After the pressing needle disc 7 rotates, the second hook block 20 is inserted into the next hook groove 16 of the pressing needle disc 7 under the action of the second reset spring 22, so as to realize the positioning of the pressing needle disc 7.

[0041] In this embodiment, a plurality of support seats 23 are evenly spaced on the top of the lower mold 1, and a support groove 24 is formed on the support seat 23, and the base 4 is accommodated in the support groove 24. Specifically, the support groove 24 is V-shaped, and the bottom outer wall of the base 4 is V-shaped. The support groove 24 is matched with the base 4 to achieve accuracy and stability when the upper mold 2 and the lower mold 1 are closed.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. A workpiece rotary punching die, characterized in that: The invention comprises a lower die (1) and an upper die (2) mounted on the lower die (1); a positioning die head (3) is rotatably mounted on the lower die (1), and the lower die (1) is also equipped with a die head rotating driving member for driving the positioning die head (3) to rotate; The bottom of the upper die (2) is provided with a plurality of bases (4) at equal intervals, the bases (4) are located on the outer periphery of the positioning die head (3), the front end of the base (4) is penetrated by a plurality of perforations (5), a punching needle (6) is movably arranged in the perforations (5), the plurality of perforations (5) are distributed in an array, and the bottom end of the punching needle (6) faces the positioning die head (3); A pressure needle disc (7) is rotatably provided at the top of the upper die (2), and a disc driving assembly for driving the pressure needle disc (7) to rotate is installed in the upper die (2); a rotating plate (8) is rotatably provided at the bottom of the upper die (2), and the rotating plate (8) is coaxially connected to the pressure needle disc (7); a plurality of pressing parts for pressing the top of the punching pressure needle (6) are evenly spaced at the bottom of the rotating plate (8); During operation, the upper die (2) and the lower die (1) are opened away from each other, the workpiece is placed on the positioning die head (3), the die head rotating drive component drives the positioning die head (3) to adjust the position of the workpiece, the upper die (2) and the lower die (1) are molded together, the base (4) is located on the periphery of the positioning die head (3), when the workpiece starts to be punched, the disc driving component drives the pressure needle disc (7) to rotate, driving the rotating plate (8) to rotate, and the punching pressure needle (6) in the perforation (5) is pressed by the pressing component so that the punching pressure needle (6) extends out of the perforation (5) to punch the workpiece, wherein the punching pressure needle (6) is distributed in an array, so that the hole positions formed after punching the corresponding positions of the workpiece are also distributed in an array, and then the die head rotating drive component continues to drive the positioning die head (3) to adjust the position of the workpiece, and then punching is performed, and the outer peripheral wall of the workpiece is punched in an array; The pressing component comprises a plurality of pressing protrusions (9) arranged at equal intervals, and the plurality of pressing protrusions (9) are distributed in an inclined arc shape; the number of pressing protrusions (9) of each pressing component is the same as the number of horizontal rows of punching needles (6) on each base (4); The bottom of the rotating plate (8) is provided with a plurality of inclined blocks (10), which are arranged in a circular ring shape, and the inclined blocks (10) form an inclined surface (11) inwardly; the pressing protrusion (9) of the pressing component is arranged on the inclined surface (11); The pressing needle disc (7) rotates once, driving different pressing protrusions (9) to drive different horizontal rows of punching needles (6) to work and punch holes in the workpiece. When the number of rotations of the pressing needle disc (7) is the same as the number of horizontal rows of the punching needles (6), all the punching needles (6) on a base (4) can complete one punching. The plurality of punching pins (6) of each base (4) are arranged in two rows, each base (4) is provided with 22 punching pins (6), each pressing component comprises 11 pressing protrusions (9), each pressing protrusion (9) pushes out two punching pins (6) in the same row to punch holes; the pressing protrusions (9) rotate, thereby driving the punching pins (6) in different horizontal rows to punch holes in the workpiece; The disc drive assembly comprises a cylinder (12) and a drive seat (13) connected to the output end of the cylinder (12); the drive seat (13) is slidably arranged on the upper mold (2); the cylinder (12) is mounted on one side of the upper mold (2); a movable block (14) is movably arranged on the side of the drive seat (13) close to the pressure needle disc (7); a first hook block (15) is arranged on the side of the movable block (14) close to the pressure needle disc (7); a plurality of hook grooves (16) are evenly spaced on the outer edge of the pressure needle disc (7); the first hook block (15) is arranged corresponding to the hook groove (16); When the needle pressing disc (7) is driven to work, the cylinder (12) drives the driving seat (13) to move forward and backward, driving the movable block (14) to move forward and backward, and then driving the needle pressing disc (7) to rotate through the cooperation of the first hook block (15) and the hook groove (16). Under the rotation of the needle pressing disc (7), the pressing component is driven to rotate, and then different pressing protrusions (9) are driven to push out the punching needle (6) to punch the workpiece; wherein, under the structural cooperation of the needle pressing disc (7) and the disc driving component, the indexing rotation of the rotating plate (8) is made, and then different pressing protrusions (9) push out the corresponding punching needle (6); The driving seat (13) is provided with a movable groove (17), the movable block (14) is movably arranged in the movable groove (17), a first return spring (18) is arranged in the movable groove (17), and two ends of the first return spring (18) are respectively connected to the inner wall of the movable groove (17) and the movable block (14); Under the action of the first reset spring (18), the movable block (14) is driven to reset; when the first reset spring (18) is in the initial state, the first hook block (15) extends into the hook groove (16), and when the cylinder (12) drives the driving seat (13) to move, the movable block (14) moves, and the first hook block (15) drives the needle pressing disc (7) to rotate, and the first hook block (15) leaves the current hook groove (16) and enters the next hook groove (16); A disc positioning block (19) is rotatably arranged on the upper die (2), a second hook block (20) is arranged at the front end of the disc positioning block (19), the second hook block (20) is arranged corresponding to the hook groove (16), a connecting column (21) is also arranged on the upper die (2), the connecting column (21) is connected to a second return spring (22), and one end of the second return spring (22) away from the connecting column (21) is connected to the disc positioning block (19); The needle pressing disc (7) rotates once, pushing out the second hook block (20) from the hook groove (16), compressing the second return spring (22) at this time. After the needle pressing disc (7) rotates, the second hook block (20) is clamped into the next hook groove (16) of the needle pressing disc (7) under the action of the second return spring (22), thereby positioning the needle pressing disc (7).

2. A workpiece rotary punching die according to claim 1, characterized in that: A plurality of support seats (23) are arranged at equal intervals on the top of the lower mold (1), a support groove (24) is provided on the support seat (23), and the base (4) is accommodated in the support groove (24).

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