Blanking and shearing die with compatibility and using method thereof

Abstract

The blanking shearing die comprises an upper die body, a lower die body, an upper die cutter connected with the upper die body, a lower die cutter connected with the lower die body and a gasket, and the gasket is detachably connected with the lower die body and used for adjusting the distance between the upper die cutter and the lower die cutter; the lower die is further provided with a push-pull rod, the telescopic end of the push-pull rod is connected with the lower die cutter and pushes the lower die cutter to be close to or away from the gaskets, the multiple gaskets are arranged, and the thicknesses of the different gaskets are set to be different. According to the blanking and shearing die with compatibility, the horizontal distance between the upper die cutter and the lower die cutter can be adjusted by replacing different gaskets, so that production compatibility of different plates is achieved, and the die development cost is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the field of shearing dies, and more specifically, to a blanking shearing die with compatibility and its usage method. Background Art

[0002] The blanking shearing die for automotive dies is a key component in the stamping process, mainly used for cutting metal sheets (such as steel sheets, aluminum sheets, etc.) into blanks with specific shapes according to design requirements, providing precise blanks for subsequent forming processes.

[0003] By setting a horizontal spacing between the upper die knife and the lower die knife, the shearing process advances gradually from one side of the material to the other side instead of instantaneously cutting off. This can disperse the shearing force, reduce the impact load, and protect the tool and the machine tool. This horizontal spacing directly affects the shearing angle (the inclination angle of the cutting edge). A larger horizontal spacing will increase the shearing angle, causing the material to be sheared in stages, which is suitable for thick materials; a smaller spacing is suitable for thin materials to ensure a smooth cut. Therefore, according to the size, thickness, and material of the material to be sheared, the horizontal spacing between the upper die knife and the lower die knife needs to be set to different values.

[0004] Currently, in order to meet the requirements for the horizontal spacing between the upper die and the lower die for different materials, a set of blanking shearing dies needs to be developed for each different part, so the die development cost is very high. Summary of the Invention

[0005] The purpose of the present invention is to provide a blanking shearing die with compatibility and its usage method. The blanking shearing die with compatibility can adjust the horizontal spacing between the upper die knife and the lower die knife by replacing different gaskets, thereby achieving compatibility in the production of different plates and greatly reducing the die development cost.

[0006] To achieve the above purpose, the present invention provides a blanking shearing die with compatibility, including an upper die, a lower die, an upper die knife connected to the upper die, a lower die knife connected to the lower die, and a gasket. The gasket is detachably connected to the lower die and is used to adjust the spacing between the upper die knife and the lower die knife;

[0007] The lower die is further provided with a push-pull rod. The telescopic end of the push-pull rod is connected to the lower die knife and pushes the lower die knife closer to or farther away from the gasket. There are multiple gaskets, and the thicknesses of different gaskets are set differently.

[0008] Preferably, the lower die includes a blanking area, and the blanking area includes a blanking chute and a first support member for supporting the blanking chute. A detachable second support member is provided between the first support member and the lower die knife.

[0009] Preferably, the lower die further includes a lower die knife installation position and an auxiliary material supporting area. The lower die knife is detachably connected to the lower die knife installation position through fasteners, and the gasket is detachably connected to the auxiliary material supporting area.

[0010] Preferably, the lower die cutter mounting position is provided with kidney-shaped holes for cooperating with fasteners.

[0011] Preferably, the lower die cutter mounting position is provided with a first guide, and the lower die cutter is provided with a second guide cooperating with the first guide. Through the cooperation of the first guide and the second guide, the lower die cutter slides relative to the lower die cutter mounting position.

[0012] Preferably, the blanking and shearing die with compatibility further includes a pressing plate, and the pressing plate is connected to the upper die through an elastically compressible member.

[0013] Preferably, the auxiliary material supporting area includes a floating material guide and a material supporting block, and the height of the driving surface of the floating material guide is adjustable.

[0014] The present invention also provides a method for using the blanking and shearing die with compatibility as described above, including:

[0015] Step 1: Disassemble the second support member and install the lower die cutter;

[0016] Step 2: Install the second support member;

[0017] Step 3: When the gasket needs to be replaced, disassemble the fastener;

[0018] Step 4: Actuate the push-pull rod to separate the lower die cutter from the gasket, and replace the new gasket;

[0019] Step 5: Actuate the push-pull rod in the reverse direction, and the lower die cutter presses the gasket against the auxiliary material supporting area;

[0020] Step 6: Install the fastener to fix the lower die cutter to the lower die cutter mounting position.

[0021] Preferably, in Step 1, the auxiliary material supporting area is provided with a first positioning surface fixedly connected to the lower die, and the lower die cutter presses the gasket against the first positioning surface.

[0022] According to the above technical solution, the upper die cutter of the present invention is connected to the upper die, and the upper die drives the upper die cutter to move up and down. When the upper die cutter descends to the same height as the lower die cutter, the shearing action on the plate will start.

[0023] By setting a horizontal gap between the upper die cutter and the lower die cutter, the shearing process advances gradually from one side of the material to the other side instead of cutting instantaneously. This can disperse the shearing force, reduce the impact load, and protect the cutting tool and the machine tool. Since the horizontal spacing between the upper die cutter and the lower die cutter needs to be set to different values for materials of different sizes, thicknesses, and materials, different thickness gaskets need to be used for different sheet metal productions. Therefore, according to the actual production needs, the thicknesses of multiple gaskets are set to be different, and different gaskets correspond to different sheets. When different sheet parts need to be sheared, the horizontal spacing between the upper die cutter and the lower die cutter can be adjusted by replacing different gaskets.

[0024] The horizontal spacing set between the upper die cutter and the lower die cutter is very small. Therefore, the thickness of the gasket is usually not set to be equal to this horizontal spacing.

[0025] The upper die cutter is fixedly connected to the upper die. During the descent of the upper die 1, the relative position between the upper die and the lower die remains unchanged, that is, the relative position between the upper die cutter and the lower die in the horizontal direction is fixed. In one embodiment, the gasket is disposed on the side of the lower die cutter close to the upper die cutter, and a processing surface for fixing the gasket is provided on the lower die. The relative position between this processing surface and the lower die is fixed. Therefore, the relative position between this processing surface and the upper die cutter in the horizontal direction is fixed. After the lower die cutter abuts against the gasket, its position is determined. By replacing gaskets of different thicknesses, the relative position between the upper die cutter and the lower die cutter can be adjusted. When the thickness of the gasket increases, the horizontal spacing between the upper die cutter and the lower die cutter increases. When the thickness of the gasket decreases, the horizontal spacing between the upper die cutter and the lower die cutter decreases.

[0026] Before each switching of the processed sheet, a suitable gasket is selected according to the spacing between the upper die cutter and the lower die cutter corresponding to this sheet and fixed to this processing surface. Then, the lower die cutter is abutted against the gasket by a push rod, and then the position of the lower die cutter is locked. In this way, the horizontal distance between the upper die cutter and the lower die cutter can be ensured.

[0027] In another embodiment, the gasket is disposed on the side of the lower die cutter away from the upper die cutter, and a processing surface for fixing the gasket is provided on the lower die. The relative position between this processing surface and the lower die is fixed. Therefore, the spacing between this processing surface and the upper die cutter in the horizontal direction is fixed. After the lower die cutter abuts against the gasket, its position is determined. By replacing gaskets of different thicknesses, the relative position between the upper die cutter and the lower die cutter can be adjusted. When the thickness of the gasket increases, the relative distance between the upper die cutter and the lower die cutter in the horizontal direction decreases. When the thickness of the gasket decreases, the relative distance between the upper die cutter and the lower die cutter in the horizontal direction increases.

[0028] In summary, when using this blanking and shearing die, the horizontal spacing between the upper die cutter and the lower die cutter can be adjusted by replacing different gaskets, thereby realizing compatibility with the production of different sheets and greatly reducing the cost of die development.

[0029] Other features and advantages of the present invention will be described in detail in the following specific implementation part. Description of the Drawings

[0030] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the drawings:

[0031] Figure 1 is a schematic diagram of the connection between the lower die and the lower die cutter;

[0032] Figure 2 is a schematic diagram of a lower die;

[0033] Figure 3 is Figure 2 a partial view of

[0034] Figure 4 is a top view of a lower die;

[0035] Figure 5 is Figure Four a sectional view taken along the A-A direction of

[0036] Figure 6 is Figure 5 a partial view of

[0037] Figure 7 is a top view of a lower die cutter;

[0038] Figure 8 is a bottom view of a lower die cutter;

[0039] Figure 9 is a schematic diagram of the connection between the upper die and the upper die cutter;

[0040] Figure 10 is a schematic diagram of the connection between the upper die and the pressure plate;

[0041] Figure 11 is a schematic diagram of a floating guide;

[0042] Figure 12 is a half-sectional view of a floating guide.

[0043] Description of the Reference Numerals

[0044] 1 Upper die 2 Lower die

[0045] 11 Upper die cutter 21 Lower die cutter

[0046] 3 Spacer 4 Push-pull rod

[0047] 22 Discharge chute 52 Fastening nut

[0048] 24 Second support member 25 Lower die cutter installation position

[0049] 26 Fastener 7 Guide structure

[0050] 28 First guide 211 Second guide

[0051] 12 Pressure plate 13 Elastically compressible member

[0052] 291 Floating stock guide 292 Stock supporting block

[0053] 61 Roller 62 Spring Specific embodiments

[0054] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustration and explanation of the present invention, and are not intended to limit the present invention.

[0055] In the present invention, unless otherwise stated, the directional terms such as "between, not less than" included in the terms only represent the direction of the term in its normal use state, or the common name understood by those skilled in the art, and should not be regarded as a limitation of the term.

[0056] A blanking and shearing die with compatibility includes an upper die 1, a lower die 2, an upper die cutter 11 connected to the upper die 1, a lower die cutter 21 connected to the lower die 2, and a gasket 3. The gasket 3 is detachably connected to the lower die 2 and is used to adjust the distance between the upper die cutter 11 and the lower die cutter 21.

[0057] The lower die 2 is further provided with a push-pull rod 4. The telescopic end of the push-pull rod 4 is connected to the lower die cutter 21 and pushes the lower die cutter 21 to approach or move away from the gasket 3. A plurality of gaskets 3 are provided, and the thicknesses of different gaskets 3 are set differently.

[0058] By implementing the above technical solution, the upper die cutter 11 is connected to the upper die 1, and the upper die 1 drives the upper die cutter 11 to move up and down. When the upper die cutter 11 descends to the same height as the lower die cutter 21, the shearing action on the sheet material will start.

[0059] By setting a horizontal gap between the upper die cutter 11 and the lower die cutter 21, the shearing process advances gradually from one side of the material to the other side instead of cutting instantaneously. This can disperse the shearing force, reduce the impact load, and protect the tool and the machine tool. Since the horizontal spacing between the upper die cutter 11 and the lower die cutter 21 needs to be set to different values for materials of different sizes, thicknesses, and materials, different thicknesses of spacers 3 need to be used for different sheet productions. Therefore, according to the actual production needs, the thicknesses of multiple spacers 3 are set to be different, and different spacers 3 correspond to different sheets. When different sheet parts need to be sheared, the horizontal spacing between the upper die cutter 11 and the lower die cutter 21 can be adjusted by replacing different spacers 3.

[0060] The horizontal spacing set between the upper die cutter 11 and the lower die cutter 21 is very small. Therefore, the thickness of the spacer 3 is usually not set to be equal to this horizontal spacing.

[0061] The upper die cutter 11 is fixedly connected to the upper die 1. During the lifting and lowering process of the upper die 1, the relative position between the upper die 1 and the lower die 2 remains unchanged, that is, the relative position between the upper die cutter 11 and the lower die 1 in the horizontal direction is fixed. In one embodiment, the spacer 3 is disposed on the side of the lower die cutter 21 close to the upper die cutter 11, and the lower die 2 is provided with a machining surface for fixing the spacer 3. The relative position of this machining surface with respect to the lower die 1 is fixed. Therefore, the relative position of this machining surface with respect to the upper die cutter 11 in the horizontal direction is fixed. After the lower die cutter 21 abuts against the spacer 3 to determine its position, the relative position between the upper die cutter 11 and the lower die cutter 21 can be adjusted by replacing spacers 3 of different thicknesses. When the thickness of the spacer 3 increases, the horizontal spacing between the upper die cutter 11 and the lower die cutter 21 increases. When the thickness of the spacer 3 decreases, the horizontal spacing between the upper die cutter 11 and the lower die cutter 21 decreases.

[0062] Before each switch of the processed sheet, a suitable spacer 3 is selected according to the spacing between the upper die cutter 11 and the lower die cutter 21 corresponding to this sheet and fixed to this machining surface. Then, the lower die cutter 21 is abutted against the spacer 3 by the push rod, and then the position of the lower die cutter 21 is locked. In this way, the horizontal distance between the upper die cutter 11 and the lower die cutter 21 can be ensured.

[0063] In another embodiment, the spacer 3 is disposed on the side of the lower die cutter 21 away from the upper die cutter 11, and the lower die 2 is provided with a machining surface for fixing the spacer 3. The relative position of this machining surface with respect to the lower die 1 is fixed. Therefore, the spacing between this machining surface and the upper die cutter 11 in the horizontal direction is fixed. After the lower die cutter 21 abuts against the spacer 3 to determine its position, the relative position between the upper die cutter 11 and the lower die cutter 21 can be adjusted by replacing spacers 3 of different thicknesses. When the thickness of the spacer 3 increases, the relative distance between the upper die cutter 11 and the lower die cutter 21 in the horizontal direction decreases. When the thickness of the spacer 3 decreases, the relative distance between the upper die cutter 11 and the lower die cutter 21 in the horizontal direction increases.

[0064] In summary, when using this blanking and shearing die, by replacing different spacers 3, the horizontal distance between the upper die cutter 11 and the lower die cutter 21 can be adjusted, so as to achieve compatibility in the production of different plates, greatly reducing the cost of die development.

[0065] In this embodiment, preferably, the lower die 2 includes a blanking area, the blanking area includes a blanking chute 22 and a first support member for supporting the blanking chute 22, and a detachable second support member (24) is arranged between the first support member and the lower die cutter 21.

[0066] The plate sheared off by the blanking and shearing die will be collected through the blanking area. The sheared plate will fall into the blanking chute 22 and then fall along the blanking chute 22 into the workpiece collection area. The first support member is arranged at a position facing the lower die cutter 21 to support the blanking chute. Since the distance between the blanking chute and the lower die cutter 21 is small, the operating space for installing the lower die cutter 21 is small, resulting in inconvenient installation of the lower die cutter 21.

[0067] By providing a detachable second support member 24, space for installing the lower die cutter 21 can be provided. When it is necessary to install the lower die cutter 21, the second support member 24 can be removed first or not installed at all, so as to provide a larger space on the lower die 2 for placing the lower die cutter 21, facilitating the installation of the lower die cutter 21.

[0068] When it is necessary to replace the spacer 3, the second support member (24) needs to be installed in place. The second support member (24) is located in front of the lower die cutter 21 to limit the stroke of the lower die cutter 21. The push-pull rod 4 is arranged behind the lower die cutter 21, and the telescopic rod of the push-pull rod 4 is connected to the lower die cutter 21. When it is necessary to replace the spacer 3, first remove the fastener 26 connecting the lower die cutter 21 and the lower die 2, so that the lower die cutter 21 and the lower die 2 can slide relative to each other. By extending the telescopic rod of the push-pull rod 4 forward, the lower die cutter 21 is pushed forward. The spacer 3 is arranged on the side of the lower die cutter 21 close to the push-pull rod 4. After the push-pull rod 4 pushes the lower die cutter 21 out, the gap between the spacer 3 and the lower die cutter 21 becomes larger, and the operator can take out the spacer 3 in use and replace it with a new spacer 3. After the new spacer 3 is placed, pull back the push-pull rod 4, and the lower die cutter 21 moves backward until the lower die cutter 21 abuts against the spacer 3 and presses the spacer 3. At this time, fasten the fastener 26 between the lower die cutter 21 and the lower die 2 again, and the position of the lower die cutter 21 can be locked, thus realizing the adjustment of the horizontal distance between the upper die cutter 11 and the lower die cutter 21.

[0069] Setting the second support member (24) in front of the lower die cutter 21 can limit the stroke of the lower die cutter 21, so that the lower die cutter 21 can only move away from the gasket 3 by a small distance, that is, there is only a small gap between the lower die cutter 21 and the mounting surface of the gasket 3, making it easier for the gasket 3 to enter this space vertically when placed. When the lower die cutter 21 moves backward, it can easily press the gasket 3 against the gasket 3 mounting surface.

[0070] The gasket 3 is provided with a U-shaped hole. The surface facing the lower die cutter 21 in the auxiliary material supporting area is provided with a first positioning surface, and a support member cooperating with the U-shaped hole is arranged on the first positioning surface. The upper part of the support member is provided with a curved surface cooperating with the bottom of the U-shaped hole. After the U-shaped hole is buckled on the support member, the preliminary fixation of the gasket 3 can be realized.

[0071] Preferably, in order to avoid interference between the support member and the lower die cutter 21, the thickness of the support member must be less than the thickness of the thinnest gasket 3. Therefore, the support member cannot provide a stable support effect for the gasket 3. Therefore, the gasket 3 will show an unstable state after cooperating with the support member. During the production process, the horizontal distance between the upper die cutter 11 and the lower die cutter 21 is small. Therefore, the thickness difference between different gaskets 3 is not large. By setting the second support member (24) to limit the lower die cutter 21 to be pushed out only by a small distance, which is approximately equal to the thickness of the gasket 3, when replacing the gasket 3, the gasket 3 will not fall off the support member, thus improving the reliability of the gasket 3 replacement process.

[0072] In this embodiment, preferably, the lower die 2 further includes a lower die cutter mounting position 25 and an auxiliary material supporting area. The lower die cutter 21 is detachably connected to the lower die cutter mounting position 25 through a fastener 26, and the gasket 3 is detachably connected to the auxiliary material supporting area.

[0073] The blanking area and the auxiliary material supporting area are respectively located on both sides of the lower die cutter 21. The gasket 3 is arranged on the side of the lower die cutter 21 close to the auxiliary material supporting area. By replacing the thicker gasket 3, the lower die cutter 21 can be pushed towards the upper die cutter 11, thereby reducing the horizontal distance between the upper die cutter 11 and the lower die cutter 21. On the contrary, by replacing the thinner gasket 3, the lower die cutter 21 can be pulled away from the upper die cutter 11, thereby increasing the horizontal distance between the upper die cutter 11 and the lower die cutter 21.

[0074] The upper die cutter 11 is fixedly connected to the upper die 1. The auxiliary material supporting area is fixedly arranged on the lower die 2 body. The relative position between the upper die 1 and the lower die 2 remains fixed. The auxiliary material supporting area is provided with a mounting surface for mounting the gasket 3, and the distance between this mounting surface and the upper die cutter 11 remains fixed. Therefore, by adjusting the thickness of the gasket 3 between the mounting surface and the lower die cutter 21, the horizontal distance between the upper die cutter 11 and the lower die cutter 21 can be adjusted.

[0075] The lower die cutter 21 is fixed on the lower die cutter mounting position 25 through the fastener 26. By removing the fastener 26, the lower die cutter 21 can be separated from the lower die cutter mounting position 25. After removing the fastener 26, the push-pull rod 4 can push the lower die cutter 21 to slide relative to the lower die cutter mounting position 25, so as to realize the release of the gasket 3, which is convenient for taking out the gasket 3 in use and replacing it with a new gasket 3.

[0076] The auxiliary material supporting area is provided with a storage position for the gasket 3, and the gasket 3 is provided with an identifier for confirming its usage scenario. A screw is provided in the auxiliary material supporting area, and the gasket 3 is provided with a U-shaped hole that can cooperate with the screw. By matching the U-shaped hole of the gasket 3 with the screw, certain degrees of freedom of the gasket 3 can be restricted. Preferably, a fastening nut 52 can also be installed, and the gasket 3 can be tightened on the screw through the fastening nut 52.

[0077] Preferably, during the production process, multiple gaskets 3 of the same type need to be used simultaneously. The multiple gaskets 3 are evenly distributed along the length direction of the lower die cutter 21, and different screws are respectively provided for storing the gaskets 3 at different positions. One set of gaskets 3 is placed on each screw, and the number and type of gaskets 3 on different screws are the same. One set of gaskets 3 includes all the thicknesses of gaskets 3 required for this blanking and shearing die, and can meet the compatible production of all sheets.

[0078] More preferably, each gasket 3 is provided with a label, and this identifier can indicate the type of production sheet it corresponds to, which is convenient for the operator to quickly replace the gasket 3 during the production process.

[0079] In this embodiment, preferably, the lower die cutter mounting position 25 is provided with a kidney-shaped hole that cooperates with the fastener 26.

[0080] By cooperating with different positions of the kidney-shaped hole, the fastener 26 can fix the lower die cutter 21 at different positions on the lower die 2, so as to realize the control of different horizontal distances between the lower die cutter 21 and the upper die cutter 11.

[0081] In this embodiment, preferably, the lower die cutter mounting position 25 is provided with a first guide 28, and the lower die cutter 21 is provided with a second guide 211 that cooperates with the first guide 28. Through the cooperation of the first guide 28 and the second guide 211, the lower die cutter 21 can slide relative to the lower die cutter mounting position 25.

[0082] Through the cooperation of the first guide 28 and the second guide 211, when the push-pull rod 4 acts on the lower die cutter 21, the lower die cutter 21 can move back and forth in a straight line direction, thus ensuring the reliability of the position of the lower die cutter 21 during use.

[0083] Preferably, the cross-section of the first guide 28 is set as a triangular protrusion, and the second guide 211 is provided with a triangular groove that cooperates with the triangular protrusion. In this way, the movement of the lower die cutter 21 along a straight line can be restricted.

[0084] In this embodiment, preferably, the blanking and shearing die with compatibility further includes a pressing plate 12, and the pressing plate 12 is connected to the upper die 1 through an elastically compressible member 13.

[0085] When the upper die cutter 11 descends to the same height as the lower die cutter 21, the upper die 1 continues to descend, and the relative movement between the upper die cutter 11 and the lower die cutter 21 can achieve the shearing effect on the sheet.

[0086] The pressing plate 12 is connected to the upper die 1 and moves downward together with the upper die 1. After the pressing plate 12 contacts the sheet, it will press the sheet to the auxiliary material supporting area. As the upper die 1 continues to move, the elastically compressible member 13 is compressed, and a pressure is applied to the sheet below through the pressing plate 12, so that the sheet remains in a relatively static state with respect to the lower die 2. At the position where the pressing plate 12 presses tightly against the lower die cutter 21, the sheet cannot be displaced under the action of the pressing plate 12.

[0087] The lower die cutter 21 is provided with a cutting edge. When the upper die cutter 11 contacts the sheet, it will push the sheet at this position downward. Since the pressing plate 12 presses the sheet above the lower die cutter 21 tightly, the sheet on the lower die cutter 21 cannot move. Therefore, under the action of the upper die cutter 11, the sheet will first bend along the cutting edge of the lower die cutter 21, and at the same time, the material is locally compressed to produce elastic deformation. At this time, it has not been cut off. As the upper die cutter 11 continues to descend, the pressure exceeds the yield strength of the material, and the cutting edge cuts into the sheet. Microcracks are generated at the cutting edge position of the lower die cutter 21 due to stress concentration in the sheet, until the cracks expand and finally separate, thus completing the shearing.

[0088] During the shearing process of the sheet, the pressing plate 12 fixes the sheet, thus realizing reliable shearing of the sheet.

[0089] In this embodiment, preferably, the auxiliary material supporting area includes a floating material guide 291 and a material supporting block 292, and the driving surface height of the floating material guide 291 is adjustable.

[0090] During the production process, the rollers 61 of the floating material guide 291 keep rotating to achieve the purpose of conveying the sheet. When the sheet is conveyed in place, the rollers 61 will stop rotating. Then the upper die 1 descends to start shearing the sheet. When the pressing plate 12 is pressed down, the pressing plate 12 will first contact the rollers 61 through the sheet. At this time, the upper die cutter 11 has not moved to the height of the lower die cutter 21 and cannot cut the sheet yet.

[0091] As the upper die 1 continues to descend, the pressure plate 12 presses down the roller 61 until the roller 61 descends to the same height as the material supporting block 292. At this time, the pressure plate 12 presses the sheet material tightly against the material supporting block 292 and the lower die blade 21. The upper die blade 11 descends to the height of the lower die blade 21. Subsequently, as the upper die continues to descend, the sheet material on the lower die blade 21 is pressed tightly by the pressure plate 12, and the upper die blade 11 begins to apply pressure to the sheet material, causing the sheet material to deform around the edge of the lower die blade 21 and finally be sheared.

[0092] A spring 62 is provided under the rotating shaft of the floating material guide 291. When the pressure plate 12 contacts the sheet material, under the action of the pressure plate 12, the spring 62 is compressed and the roller 61 descends. During this process, the pressure applied by the pressure plate 12 to the sheet material is consistent with the elastic force of the spring 62. Subsequently, the sheet material contacts the material supporting block 292, and the pressure block 12 no longer descends with the upper die. At this time, the force exerted by the pressure block 12 on the sheet material is consistent with the elastic force of the elastic compressible member 13.

[0093] When the shearing work is completed and the upper die 1 rises, the pressure plate 12 rises, and under the action of the spring 62, the roller 61 rises and returns to the working state.

[0094] The present invention also provides a method for using a blanking and shearing die with compatibility, including:

[0095] Step 1: Remove the second support member (24) and install the lower die blade 21;

[0096] Step 2: Install the second support member (24);

[0097] Step 3: When it is necessary to replace the gasket 3, remove the fastener 26;

[0098] Step 4: Actuate the push-pull rod 4 to separate the lower die blade 21 from the gasket 3 and replace it with a new gasket 3;

[0099] Step 5: Actuate the push-pull rod 4 in the reverse direction, and the lower die blade 21 presses the gasket 3 tightly into the auxiliary material supporting area;

[0100] Step 6: Install the fastener 26 and fix the lower die blade 21 to the lower die blade installation position 25.

[0101] First, it is necessary to install the lower die blade 21. By removing the second support member (24), a larger space can be obtained on the lower die 2 for installing the lower die blade 21. When installing the lower die blade 21, it is also necessary to place the gasket 3 corresponding to the sheet material to be produced in place.

[0102] After the lower die cutter 21 is installed, the second support member (24) needs to be installed in place. The second support member (24) is used to limit the stroke of the lower die cutter 21 to prevent the lower die cutter 21 from being pushed out a large distance under the action of the push-pull rod 4, so that the distance between the lower die cutter 21 and the first positioning surface is approximately equal to the thickness of the gasket 3. Then, when replacing the gasket 3, the gasket 3 is not easily slipped off the support member, making the process of replacing the gasket 3 more reliable.

[0103] When the gasket 3 needs to be replaced, the fastener 26 can be removed first to enable relative sliding between the lower die cutter 21 and the lower die 2. Then, by pushing the push-pull rod 4, the lower die cutter 21 is pushed forward to release the gasket 3 in use. The operator takes out the gasket 3 in use and replaces it with a new gasket 3 to complete the replacement of the gasket 3. Then, by pulling back the lower die cutter 21 with the push-pull rod 4 and abutting the lower die cutter 21 against the gasket 3, the horizontal distance between the upper die cutter 11 and the lower die cutter 21 can be adjusted, enabling the blanking and shearing die to meet the production requirements of new sheets.

[0104] In this embodiment, preferably, in step one, the auxiliary material supporting area is provided with a first positioning surface fixedly connected to the lower die 2, and the lower die cutter 21 presses the gasket 3 against the first positioning surface.

[0105] The first positioning surface needs to be finely processed and the relative position between the first positioning surface and the lower die 2 needs to be ensured. A guiding structure 7 is provided between the upper die 1 and the lower die 2. Through the guiding structure 7, the relative position between the upper die 1 and the lower die 2 can be ensured. The upper die cutter 11 is fixedly connected to the upper die 1, thus ensuring the relative position between the first positioning surface and the upper die cutter 11, that is, the distance between the upper die cutter 11 and the first positioning surface is fixed. Therefore, by adjusting the thickness of the gasket 3 and abutting the lower die cutter 21 against the gasket 3, the horizontal distance between the lower die cutter 21 and the upper die cutter 11 can be adjusted.

[0106] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0107] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0108] Furthermore, any combination can be made between different embodiments of the present invention as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. A blanking and shearing die with compatibility, characterized in that It includes an upper die (1), a lower die (2), an upper die cutter (11) connected to the upper die (1), a lower die cutter (21) connected to the lower die (2), and a gasket (3). The gasket (3) is detachably connected to the lower die (2) and is used to adjust the distance between the upper die cutter (11) and the lower die cutter (21). The lower die (2) is further provided with a push-pull rod (4). The telescopic end of the push-pull rod (4) is connected to the lower die cutter (21) and pushes the lower die cutter (21) to approach or move away from the gasket (3). There are multiple gaskets (3), and different gaskets (3) are set to have different thicknesses.

2. The blanking and shearing die with compatibility according to claim 1, characterized in that The lower die (2) includes a blanking area, and the blanking area includes a blanking chute (22) and a first support member for supporting the blanking chute (22). A detachable second support member (24) is provided between the first support member and the lower die cutter (21).

3. The blanking and shearing die with compatibility according to claim 2, characterized in that, The lower die (2) further includes a lower die cutter mounting position (25) and an auxiliary material supporting area. The lower die cutter (21) is detachably connected to the lower die cutter mounting position (25) through a fastener (26), and the gasket (3) is detachably connected to the auxiliary material supporting area.

4. The blanking and shearing die with compatibility according to claim 3, characterized in that, The lower die cutter mounting position (25) is provided with a kidney-shaped hole for cooperating with the fastener (26).

5. The blanking and shearing die with compatibility according to claim 4, characterized in that, The lower die cutter mounting position (25) is provided with a first guide (28), and the lower die cutter (21) is provided with a second guide (211) for cooperating with the first guide (28). Through the cooperation of the first guide (28) and the second guide (211), the lower die cutter (21) slides relative to the lower die cutter mounting position (25).

6. The blanking and shearing die with compatibility according to claim 2, wherein, The blanking and shearing die with compatibility further includes a pressing plate (12), and the pressing plate (12) is connected to the upper die (1) through an elastically compressible member (13).

7. The blanking and shearing die with compatibility according to claim 2, characterized in that, The auxiliary material supporting area includes a floating material guide (291) and a material supporting block (292), and the driving surface height of the floating material guide (291) is adjustable.

8. A method for using a compatible blanking and shearing die according to any one of claims 2-7, characterized in that It includes: Step 1: Disassemble the second support member (24) and install the lower die cutter (21); Step 2: Install the second support member (24); Step 3: When it is necessary to replace the gasket (3), disassemble the fastener (26); Step 4: The push-pull rod (4) acts to separate the lower die cutter (21) from the gasket (3), and replace it with a new gasket (3); Step 5: The push-pull rod (4) acts in the reverse direction, and the lower die cutter (21) presses the gasket (3) tightly against the auxiliary material supporting area; Step 6: Install the fastener (26) to fix the lower die cutter (21) to the lower die cutter mounting position (25).

9. The usage method according to claim 8, wherein, In Step 1, the auxiliary material supporting area is provided with a first positioning surface fixedly connected to the lower die (2), and the lower die cutter (21) presses the gasket (3) against the first positioning surface.

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