A type of oblique punching forming device

Abstract

This invention discloses a slanted punching forming device, belonging to the technical field of punching devices. It includes an upper die base, a lower die base, an upper die fixing plate, an upper inserter, and a punch mechanism. The upper die fixing plate is located between the upper die base and the lower die base, slidably mounted on the upper die base and in contact with the lower die base. The punch mechanism is hinged to the upper die fixing plate and inserted into the cutting edge on the lower die base. When the upper die base slides along the second guide post to the lower die base, the upper inserter inserts into the punch mechanism, compressing the punch mechanism to perform slanted punching on the workpiece. The punched-out waste material enters the discharge port from the cutting edge and is discharged. When slanted holes of different angles need to be punched, the angle of the punch mechanism is adjusted, and the angle of the wedge is adjusted by the adjustment mechanism to adapt to the change in the punch mechanism angle. No overall disassembly of the die is required, and the punch adjustment operation is simple and convenient.

Description

Technical Field

[0001] This invention belongs to the field of punching device technology, and particularly relates to an oblique punching forming device. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials into parts. Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or undergo plastic deformation, thereby obtaining the desired parts. Punching devices are a type of stamping device and are often used in punching processes.

[0003] Chinese Patent (CN201520020730.8) discloses a punching mechanism for a stamping die, including an upper die and a lower die. The upper die includes an upper die base, a wedge block, a pressure plate, and a punch assembly. The wedge block is disposed on the bottom surface of the upper die base, and the punch assembly is disposed at an inclined angle in the pressure plate. The lower die includes a lower die base and a lower forming die. The lower forming die is disposed on the lower die base, and a die sleeve that mates with the punch is disposed on the top of the lower forming die. The product is supported on the top of the lower forming die, and the die sleeve is located below the punching position of the product. The bottom outer side of the punch mounting base is the upper forming die corresponding to the lower forming die. The upper die base drives the wedge block to press against the ejector rod, and the ejector rod drives the punch to insert the punch hole into the die sleeve. The upper forming die and the lower forming die clamp and position the part around the punching position of the product.

[0004] Chinese Patent (CN201822104884.1) discloses a wedge mechanism with adjustable stamping angle and position, belonging to the field of mold technology. The invention includes an upper base, a lower base, and a wedge slider. The wedge slider is fixed to the lower surface of the upper base and slides with the lower base. A punch is provided on the wedge slider, and the stamping angle and position of the punch are adjustable.

[0005] Currently, adjusting the angle of the punch for the angled punch in a stamping die requires disassembling the die and then adjusting or replacing the punch, making the punch replacement operation cumbersome. Summary of the Invention

[0006] The purpose of this invention is to solve the problem that adjusting the angle of the punch for the angled punch in the stamping die requires disassembling and assembling the die, and then adjusting or replacing the punch, which makes the punch replacement operation cumbersome. Therefore, an angled punch forming device is proposed.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a slanted punching forming device, comprising an upper die base, a lower die base, an upper die fixing plate, an upper insert knife, and a punch mechanism. The upper die fixing plate is located between the upper die base and the lower die base, and is slidably disposed on the upper die base and in contact with the lower die base. The punch mechanism is hinged to the upper die fixing plate and inserted into the cutting edge on the lower die base. The upper insert knife is fixedly connected to the upper die base and inserted into the upper die fixing plate. A wedge is hinged to the upper insert knife, and the wedge abuts against the punch mechanism. An adjustment mechanism is connected between the wedge and the upper insert knife.

[0008] As a further description of the above technical solution:

[0009] The punch mechanism includes a sliding sleeve, a drive block, a spring, and a punch body. The sliding sleeve is hinged to the upper die fixing plate. The drive block is slidably disposed inside the sliding sleeve and abuts against the wedge block. The punch body is fixedly connected to the drive block and inserted into the cutting edge. The opposite ends of the spring abut against the drive block and the sliding sleeve, respectively.

[0010] As a further description of the above technical solution:

[0011] The sliding sleeve is connected to the upper mold fixing plate via a hinge rod. The sliding sleeve is provided with multiple screw holes, and the fixing bolt passes through the upper mold fixing plate and is screwed into the screw holes.

[0012] As a further description of the above technical solution:

[0013] The plurality of screw holes are arranged in a ring array along the axis of the hinge rod.

[0014] As a further description of the above technical solution:

[0015] The adjusting mechanism includes an adjusting screw and a connecting plate. The adjusting screw is screwed onto the upper insert, and the wedge is provided with a sliding groove. The connecting plate is engaged in the sliding groove and is hinged to the end of the adjusting screw. The connecting plate slides along the sliding groove.

[0016] As a further description of the above technical solution:

[0017] Both the cross-section of the connecting plate and the cross-section of the slide are T-shaped.

[0018] As a further description of the above technical solution:

[0019] The lower mold base is provided with a positioning block, and the cutting edge is formed on the inclined surface of the positioning block.

[0020] As a further description of the above technical solution:

[0021] The lower mold base is provided with a discharge port, which is connected to the cutting edge.

[0022] As a further description of the above technical solution:

[0023] The upper mold base is provided with a first guide post, and the upper mold fixing plate is slidably disposed on the first guide post.

[0024] As a further description of the above technical solution:

[0025] The lower mold base is provided with a second guide post, and the upper mold base is slidably disposed on the second guide post.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] 1. In this invention, when the upper die base slides down the lower die base along the second guide post, the upper insert knife is inserted into the punch mechanism, and the punch mechanism is used to perform oblique punching on the workpiece. The punched waste material enters the discharge port from the cutting edge and is discharged. When it is necessary to punch oblique holes of different angles, the angle of the punch mechanism is adjusted, and the angle of the wedge block is adjusted by the adjustment mechanism to adapt to the change of the punch mechanism angle. There is no need to disassemble the entire mold, and the punch adjustment operation is simple and convenient.

[0028] 2. In this invention, the angle of the punch body is adjusted by rotating the sliding sleeve to make it rotate around the hinge rod. After the position is determined, the fixing bolt passes through the lower mold base and is screwed into the corresponding screw hole. There is no need to disassemble the entire mold, and the adjustment operation is quick and convenient.

[0029] 3. In this invention, the position of the connecting plate changes by turning the adjusting screw. Since the connecting plate slides in the groove and is hinged to the end of the adjusting screw, the position change of the adjusting screw is converted into a force on the wedge, causing the wedge to rotate along its hinge point, thereby making the inclined surface of the wedge adapt to the change of the angle of the driving block. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an oblique punching forming device.

[0031] Figure 2 for Figure 1 The usage status is shown in the diagram.

[0032] Figure 3 This is a schematic diagram of the internal structure of an oblique punching forming device.

[0033] Figure 4 for Figure 3 The usage status is shown in the diagram.

[0034] Figure 5 for Figure 4 A magnified view of the middle section.

[0035] Figure 6 This is a schematic diagram of the punch mechanism and adjustment mechanism in a slanted punching forming device.

[0036] Figure 7 for Figure 6 A magnified view of part B in the middle section.

[0037] Legend:

[0038] 1. Upper die holder; 2. Lower die holder; 3. Upper die fixing plate; 4. Upper insert knife; 5. Punch mechanism; 51. Sliding sleeve; 52. Drive block; 53. Spring; 54. Punch body; 6. Cutting edge; 7. Wedge block; 8. Adjustment mechanism; 81. Adjustment screw; 82. Connecting plate; 9. Hinge rod; 10. Screw hole; 11. Fixing bolt; 12. Slide groove; 13. Positioning block; 14. Discharge port; 15. First guide post; 16. Second guide post. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figure 1-7 This invention provides a technical solution: a slanted punching forming device, comprising an upper die base 1, a lower die base 2, an upper die fixing plate 3, an upper inserting knife 4, and a punch mechanism 5. The upper die fixing plate 3 is located between the upper die base 1 and the lower die base 2, and is slidably disposed on the upper die base 1 and in contact with the lower die base 2. The punch mechanism 5 is hinged to the upper die fixing plate 3 and inserted into the cutting edge 6 on the lower die base 2. The upper inserting knife 4 is fixedly connected to the upper die base 1 and inserted into the upper die fixing plate 3. A wedge 7 is hinged to the upper inserting knife 4, and the wedge 7 abuts against the punch mechanism 5. An adjustment mechanism 8 is connected between the wedge 7 and the upper inserting knife 4.

[0041] The punch mechanism 5 includes a sliding sleeve 51, a driving block 52, a spring 53, and a punch body 54. The sliding sleeve 51 is hinged to the upper die fixing plate 3. The driving block 52 is slidably disposed inside the sliding sleeve 51 and abuts against the wedge block 7. The punch body 54 is fixedly connected to the driving block 52 and inserted into the cutting edge 6. The opposite ends of the spring 53 abut against the driving block 52 and the sliding sleeve 51, respectively. During the descent of the upper insert 4, the driving block 52 is squeezed and the driving block 52 slides along the sliding sleeve 51. The punch body 54 acts on the workpiece under the action of the driving block 52. The punch body 54 punches the waste material of the workpiece into the cutting edge 6. The waste material enters the discharge port 14 from the cutting edge 6 and is discharged. At this time, the spring 53 is compressed. When the upper insert 4 rises, the driving block 52 loses the external force and the spring 53 elastically resets the driving block 52. The punch body 54 connected to the driving block 52 also resets accordingly.

[0042] The sliding sleeve 51 is connected to the upper mold fixing plate 3 via the hinge rod 9. The sliding sleeve 51 is provided with a plurality of screw holes 10. The fixing bolt 11 passes through the upper mold fixing plate 3 and is screwed into the screw holes 10. The plurality of screw holes 10 are arranged in a circular array along the axis of the hinge rod 9, so that after the sliding sleeve 51 is rotated and adjusted, the position of the fixing bolt 11 is inconvenient. The corresponding screw holes 10 are used to screw into the fixing bolt 11, thereby facilitating the fixing of the sliding sleeve 51 after adjustment.

[0043] The adjustment mechanism 8 includes an adjustment screw 81 and a connecting plate 82. The adjustment screw 81 is screwed onto the upper insert 4. The wedge 7 is provided with a sliding groove 12. The connecting plate 82 is engaged in the sliding groove 12 and is hinged to the end of the adjustment screw 81. The connecting plate 82 slides along the sliding groove 12. Twisting the adjustment screw 81 causes the position of the connecting plate 82 to change. Since the connecting plate 82 slides in the sliding groove 12 and is hinged to the end of the adjustment screw 81, the change in the position of the adjustment screw 81 is converted into a force on the wedge 7, causing the wedge 7 to rotate along its own hinge point. This allows the inclined surface of the wedge 7 to adapt to the change in the angle of the drive block 52.

[0044] The cross-section of the connecting plate 82 and the cross-section of the sliding groove 12 are both T-shaped, which allows the connecting plate 82 to be snapped into the sliding groove 12 and also facilitates the sliding of the connecting plate 82 along the sliding groove 12.

[0045] The lower mold base 2 is provided with a positioning block 13, and the cutting edge 6 is opened on the inclined surface of the positioning block 13 to facilitate the positioning of the workpiece.

[0046] The lower die base 2 is provided with a discharge port 14, which is connected to the cutting edge 6 to facilitate the discharge of waste material punched down by the punch body 54.

[0047] The upper mold base 1 is provided with a first guide post 15, and the upper mold fixing plate 3 is slidably disposed on the first guide post 15;

[0048] The lower mold base 2 is provided with a second guide post 16, and the upper mold base 1 is slidably disposed on the second guide post 16. The second guide post 16 has a guiding function for the sliding of the upper mold base 1.

[0049] Working principle: First, the workpiece is placed on the lower die base 2. The positioning block 13 positions the workpiece. The upper die base 1 moves along the second guide post 16 towards the lower die base 2. The wedge block 7, hinged to the upper insert 4, presses against the drive block 52. The drive block 52 slides along the sliding sleeve 51. The punch body 54 acts on the workpiece under the action of the drive block 52. The punch body 54 punches the workpiece waste into the cutting edge 6. The waste enters the discharge port 14 from the cutting edge 6 and is discharged. At this time, the spring 53 is compressed. Next, the upper die base 1 moves along the second guide post 16 in the opposite direction to the lower die base 2. The drive block 52 loses the external force. The spring 53 elastically resets the drive block 52. The punch body 54 connected to the drive block 52 also resets. At this time, the upper die fixing plate 3 moves along the first guide post 16 towards the lower die base 2. The column 15 slides, leaving a gap between the upper die fixing plate 3 and the upper die base 1. Then, when the punching angle needs to be changed, the fixing bolt 11 is loosened, and the sliding sleeve 51 is rotated to rotate around the hinge rod 9, thereby adjusting the angle of the punch body 54. After the position is determined, the fixing bolt 11 is passed through the lower die base 2 and screwed into the corresponding screw hole 10 to complete the fixing of the sliding sleeve 51. Finally, the adjusting screw 81 is turned to change the position of the connecting plate 82. Since the connecting plate 82 slides in the slide groove 12 and the connecting plate 82 is hinged to the end of the adjusting screw 81, the change in the position of the adjusting screw 81 is converted into a force on the wedge block 7, causing the wedge block 7 to rotate along its own hinge point, thereby making the inclined surface of the wedge block 7 adapt to the change in the angle of the driving block 52.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for forming oblique punch holes, characterized in that: The assembly includes an upper die base (1), a lower die base (2), an upper die fixing plate (3), an upper insert knife (4), and a punch mechanism (5). The upper die fixing plate (3) is located between the upper die base (1) and the lower die base (2). The upper die fixing plate (3) is slidably disposed on the upper die base (1) and contacts the lower die base (2). The punch mechanism (5) is hinged to the upper die fixing plate (3) and inserted into the cutting edge (6) on the lower die base (2). The upper insert knife (4) is fixedly connected to the upper die base (1) and inserted into the upper die fixing plate (3). A wedge (7) is hinged to the upper insert knife (4) and abuts against the punch mechanism (5). An adjustment mechanism (8) is connected between the wedge (7) and the upper insert knife (4). The punch mechanism (5) includes a sliding sleeve (51), a drive block (52), a spring (53), and a punch body (54). The sliding sleeve (51) is hinged to the upper die fixing plate (3). The drive block (52) is slidably disposed in the sliding sleeve (51) and abuts against the wedge block (7). The punch body (54) is fixedly connected to the drive block (52) and inserted into the cutting edge (6). The opposite ends of the spring (53) abut against the drive block (52) and the sliding sleeve (51) respectively. The sliding sleeve (51) is connected to the upper mold fixing plate (3) via a hinge rod (9). The sliding sleeve (51) is provided with multiple screw holes (10). The fixing bolt (11) passes through the upper mold fixing plate (3) and is screwed into the screw holes (10). The plurality of screw holes (10) are arranged in a ring array along the axis of the hinge rod (9); The adjustment mechanism (8) includes an adjustment screw (81) and a connecting plate (82). The adjustment screw (81) is screwed onto the upper insert (4). The wedge (7) is provided with a sliding groove (12). The connecting plate (82) is engaged in the sliding groove (12). The connecting plate (82) is hinged to the end of the adjustment screw (81) and slides along the sliding groove (12).

2. The oblique punching forming device according to claim 1, characterized in that, The cross-sections of the connecting plate (82) and the slide (12) are both T-shaped.

3. The oblique punching forming device according to claim 1, characterized in that, The lower mold base (2) is provided with a positioning block (13), and the cutting edge (6) is opened on the inclined surface of the positioning block (13).

4. The oblique punching forming device according to claim 1, characterized in that, The lower mold base (2) is provided with a discharge port (14), which is connected to the cutting edge (6).

5. The oblique punching forming device according to claim 1, characterized in that, The upper mold base (1) is provided with a first guide post (15), and the upper mold fixing plate (3) is slidably disposed on the first guide post (15).

6. The oblique punching forming device according to claim 1, characterized in that, The lower mold base (2) is provided with a second guide post (16), and the upper mold base (1) is slidably disposed on the second guide post (16).

Images