Inclined punching die

Abstract

The inclined punching die comprises a base, a lower die is slidably connected to the top of the base, an upper die is arranged at the top of the interior of the lower die, a workpiece locking and ejecting mechanism is arranged in the lower die and comprises two moving seats, nut seats are fixedly connected to the bottoms of the two moving seats, and the nut seats are fixedly connected to the bottoms of the two moving seats. Two guide grooves are formed in the lower die, two-way screw rods are rotationally connected into the two guide grooves, one ends of the two-way screw rods are in transmission connection, and one end of one of the two-way screw rods is fixedly connected with a fixed motor; the workpiece locking and ejecting mechanism is arranged, the fixed motor drives the two moving seats to move at the same time, a workpiece is clamped and fixed, manual locking is not needed, after punching operation is completed, the fixed motor drives the moving seats to move oppositely, clamping constraint on the workpiece is relieved, an electric push rod drives an ejecting plate to move, the workpiece is ejected out, and the workpiece is taken out conveniently; and therefore, the use convenience can be effectively improved.

Description

Technical Field

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

[0002] Moulds are various moulds and tools used in industrial production to obtain the required products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. Oblique punching die is a kind of mould, which can perform oblique punching on the workpiece.

[0003] In the prior art, publication number CN211757942U discloses an oblique punching die, including a track, a slide groove is provided on the upper surface of the track, guide columns are respectively provided on both sides of both ends of the track, the bottom of the lower die seat is movably connected with the slide groove on the upper surface of the track, a slot hole is provided in the middle position of the lower die seat, a side plate is provided on the upper surface of the lower die seat, a plurality of oblique guide sleeves are provided inside the lower die seat, a plurality of piston rods are provided on the upper surface of the pressure plate, a spring is provided outside the piston rod, guide sleeves are respectively provided on both sides of both ends of the top plate, the guide sleeves cooperate with the guide columns, a plurality of longitudinal guide sleeves are provided inside the top plate, and the top of the piston rod It is movably arranged in the longitudinal guide sleeve, and a plurality of inclined guide rods and punching heads are arranged on the lower surface of the top plate. The bottom ends of the inclined guide rods pass through the through holes of the pressure plate and are movably connected with the inclined guide sleeves of the lower die seat. The punching heads pass through the through holes in the middle of the pressure plate and cooperate with the slots of the lower die seat. The invention uses a slidable lower die seat to make the top plate and the pressure plate always move vertically along the guide columns during the pressing process, and the stability is greatly improved. However, when using the inclined punching die, the workpiece needs to be placed in the lower die seat and manually fixed with a clamp. At the same time, it is not convenient to take out the workpiece in the lower die seat, which makes the convenience of use less than ideal. Summary of the invention

[0004] The object of the present invention is to provide an oblique punching die to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an oblique punching die, comprising a base, a lower die is slidably connected to the top of the base, an upper die is provided at the top of the lower die, and a workpiece locking and ejecting mechanism is provided in the lower die; The workpiece locking and ejection mechanism includes two moving seats, the bottom of the two moving seats are fixedly connected with a nut seat, the lower mold is provided with two guide grooves, the inside of the two guide grooves are rotatably connected with a bidirectional screw, one end of the two bidirectional screws is transmission-connected, and one end of the bidirectional screw is fixedly connected with a fixed motor, a movable groove is provided on the moving seat, a connecting block is slidably connected inside the movable groove, an ejection plate is fixedly connected to the end of the connecting block, and an electric push rod is fixedly connected to the top of the connecting block.

[0006] As a further preferred embodiment of the present technical solution, the two movable seats are both L-shaped, and the two movable seats are symmetrically arranged inside the lower mold.

[0007] As a further preferred embodiment of the present technical solution, the nut seat is threadedly connected to the bidirectional screw, the bidirectional screw is provided with two sections of threads in opposite directions, and the nut seat is slidably connected to the inner wall of the guide groove.

[0008] As a further preferred embodiment of the present technical solution, the transmission structure between the two bidirectional screws includes two transmission wheels, a transmission belt is sleeved between the two transmission wheels, and the fixed motor is fixedly mounted on the lower mold.

[0009] As a further preferred embodiment of the present technical solution, an oblique punch and a plurality of oblique guide rods are fixedly connected to the upper die, and a discharge port and a plurality of oblique guide sleeves are provided on the lower die.

[0010] As a further preferred embodiment of the present technical solution, a positioning mechanism is provided on the outer side of the upper mold, the positioning mechanism includes a plurality of positioning rods, a plurality of positioning blocks are fixedly connected to the side surface of the upper mold, a locking block is provided at one end of the positioning block, and a bushing is provided between the locking block and the positioning block.

[0011] As a further preferred embodiment of the present technical solution, the bushing matches the positioning rod, and the locking block and the positioning block are detachably connected via bolts.

[0012] The present invention provides an oblique punching die, which has the following beneficial effects: (1) The present invention provides a workpiece locking and ejecting mechanism. The fixed motor drives the two movable seats to move at the same time to clamp and fix the workpiece without manual locking. After the punching operation is completed, the fixed motor drives the movable seats to move in opposite directions to release the clamping constraint on the workpiece. The electric push rod drives the ejection plate to move to eject the workpiece, making it easy to take out the workpiece, thereby effectively improving the convenience of use.

[0013] (2) The present invention provides a bushing, a positioning block and a positioning rod to guide the movement of the upper die, thereby improving the stability of the movement of the upper die. In addition, the bushing can enhance the protection of the positioning block and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A magnified view of the structure at center; Figure 3 For the present invention Figure 1 A magnified view of the structure at B in the middle; Figure 4 For the present invention Figure 1 A magnified view of the structure at C in the middle; In the figure: 1. base; 2. lower die; 3. upper die; 4. workpiece locking and ejection mechanism; 5. movable seat; 6. guide groove; 7. bidirectional screw; 8. fixed motor; 9. nut seat; 10. movable groove; 11. connecting block; 12. ejection plate; 13. electric push rod; 14. discharge port; 15. oblique punch; 16. oblique guide rod; 17. oblique guide sleeve; 18. positioning rod; 19. positioning mechanism; 20. positioning block; 21. bushing; 22. locking block; 23. bolt. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0016] The present invention provides a technical solution: Figure 1 and Figure 3 As shown, in the present embodiment, an oblique punching die comprises a base 1, a lower die 2 is slidably connected to the top of the base 1, an upper die 3 is arranged on the top of the lower die 2, an oblique punch 15 and a plurality of oblique guide rods 16 are fixedly connected to the upper die 3, a discharge port 14 and a plurality of oblique guide sleeves 17 are arranged on the lower die 2, the oblique punch 15 can be used to complete the oblique punching operation, a workpiece locking and ejecting mechanism 4 is arranged in the lower die 2, the workpiece can be quickly locked by the workpiece locking and ejecting mechanism 4, no manual locking is required, and the workpiece can be ejected after the oblique punching is completed, so that the workpiece can be taken out conveniently, thereby effectively improving the convenience of use.

[0017] like Figure 1 and Figure 2As shown, the workpiece locking and ejecting mechanism 4 includes two moving seats 5, the shapes of the two moving seats 5 are both set to L-shape, and the two moving seats 5 are symmetrically arranged inside the lower mold 2, so that the workpiece can be clamped and fixed, the bottoms of the two moving seats 5 are fixedly connected with nut seats 9, the nut seats 9 are threadedly connected with the bidirectional screw 7, the bidirectional screw 7 is provided with two sections of threads in opposite directions, the nut seat 9 is slidably connected with the inner wall of the guide groove 6, so that the two moving seats 5 can move towards or away from each other, two guide grooves 6 are provided in the lower mold 2, the insides of the two guide grooves 6 are rotatably connected with the bidirectional screws 7, one end of the two bidirectional screws 7 is transmission connected, the transmission structure between the two bidirectional screws 7 includes two transmission wheels, a transmission belt is sleeved between the two transmission wheels, the fixed motor 8 is fixedly installed on the lower mold 2, and one end of the bidirectional screw 7 is fixedly connected with The fixed motor 8 enables the fixed motor 8 to drive the two bidirectional screws 7 to rotate at the same time. A movable groove 10 is provided on the movable seat 5. A connecting block 11 is slidably connected inside the movable groove 10. The end of the connecting block 11 is fixedly connected to an ejection plate 12. The top of the connecting block 11 is fixedly connected to an electric push rod 13. The two bidirectional screws 7 can be driven to rotate at the same time by the fixed motor 8. The rotation of the bidirectional screw 7 drives the nut seat 9 to move. The movement of the nut seat 9 drives the two movable seats 5 to move toward each other. After adjusting to a suitable position, the workpiece is placed on the ejection plate 12, and then the fixed motor 8 continues to drive the movable seat 5 to move to clamp and fix the workpiece without manual locking. After the punching operation is completed, the fixed motor 8 drives the movable seat 5 to move away from each other to release the clamping constraint on the workpiece. The electric push rod 13 drives the ejection plate 12 to move to eject the workpiece, which is convenient for taking out the workpiece, thereby effectively improving the convenience of use.

[0018] like Figure 1 and Figure 4 As shown, a positioning mechanism 19 is provided on the outer side of the upper mold 3, and the positioning mechanism 19 includes a plurality of positioning rods 18. A plurality of positioning blocks 20 are fixedly connected to the side surface of the upper mold 3. A locking block 22 is provided at one end of the positioning block 20. A bushing 21 is provided between the locking block 22 and the positioning block 20. The bushing 21 can be disassembled into two parts for easy replacement and disassembly. The bushing 21 matches the positioning rod 18, and the locking block 22 is detachably connected to the positioning block 20 by a bolt 23. The positioning block 20 and the positioning rod 18 can guide the movement of the upper mold 3, thereby improving the stability of the movement of the upper mold 3, and the bushing 21 can improve the protection of the positioning block 20 and extend its service life.

[0019] The present invention provides an oblique punching die, and the specific working principle is as follows: When the present invention is actually used, the fixed motor 8 drives the two bidirectional screws 7 to rotate at the same time, and the rotation of the bidirectional screws 7 drives the nut seat 9 to move, and the movement of the nut seat 9 drives the two movable seats 5 to move toward each other. After adjusting to a suitable position, the workpiece is placed on the ejection plate 12, and then the fixed motor 8 continues to drive the movable seat 5 to move, and the workpiece is clamped and fixed without manual locking. After the punching operation is completed, the fixed motor 8 drives the movable seat 5 to move away from each other, releasing the clamping constraint on the workpiece, and the electric push rod 13 drives the ejection plate 12 to move, ejecting the workpiece, and facilitating the removal of the workpiece, thereby effectively improving the convenience of use.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oblique punching die, comprising a base (1), characterized in that: The top of the base (1) is slidably connected to a lower die (2), an upper die (3) is provided at the top of the lower die (2), and a workpiece locking and ejecting mechanism (4) is provided in the lower die (2); The workpiece locking and ejection mechanism (4) comprises two movable seats (5), the bottoms of the two movable seats (5) are fixedly connected to nut seats (9), the lower die (2) is provided with two guide grooves (6), the insides of the two guide grooves (6) are rotatably connected to bidirectional screws (7), one end of the two bidirectional screws (7) is transmission-connected, and one end of the bidirectional screw (7) is fixedly connected to a fixed motor (8), the movable seat (5) is provided with a movable groove (10), the inside of the movable groove (10) is slidably connected to a connecting block (11), the end of the connecting block (11) is fixedly connected to an ejection plate (12), and the top of the connecting block (11) is fixedly connected to an electric push rod (13).

2. The oblique punching die according to claim 1, characterized in that: The two movable seats (5) are both L-shaped, and the two movable seats (5) are symmetrically arranged inside the lower mold (2).

3. The oblique punching die according to claim 1, characterized in that: The nut seat (9) is threadedly connected to the bidirectional screw (7), the bidirectional screw (7) is provided with two sections of threads in opposite directions, and the nut seat (9) is slidably connected to the inner wall of the guide groove (6).

4. The oblique punching die according to claim 1, characterized in that: The transmission structure between the two bidirectional screws (7) comprises two transmission wheels, a transmission belt is sleeved between the two transmission wheels, and the fixed motor (8) is fixedly mounted on the lower mold (2).

5. The oblique punching die according to claim 1, characterized in that: An oblique punch (15) and a plurality of oblique guide rods (16) are fixedly connected to the upper die (3), and a discharge port (14) and a plurality of oblique guide sleeves (17) are provided on the lower die (2).

6. The oblique punching die according to claim 1, characterized in that: A positioning mechanism (19) is provided on the outer side of the upper mold (3), the positioning mechanism (19) comprising a plurality of positioning rods (18), a plurality of positioning blocks (20) are fixedly connected to the side surface of the upper mold (3), a locking block (22) is provided at one end of the positioning block (20), and a bushing (21) is provided between the locking block (22) and the positioning block (20).

7. The oblique punching die according to claim 6, characterized in that: The bushing (21) matches the positioning rod (18), and the locking block (22) is detachably connected to the positioning block (20) via a bolt (23).

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