Punching die

Abstract

The present application provides a kind of stamping die, including upper die and lower die;Upper die and lower die are equipped with side punching structure and the limiting structure of limiting workpiece, at least part of side punching structure and limiting structure are stacked along the height direction, and the sliding connection of side punching structure and one of upper die and lower die;Limiting structure has the limiting wall in the side of side punching structure, and limiting wall is equipped with avoiding passage;The other of upper die and lower die is equipped with driving element, and driving element is used to drive side punching structure to move towards limiting wall to extend into avoiding passage, and the part of workpiece between side punching structure and limiting wall is punched, so that side punching structure and workpiece have coinciding size in horizontal direction, using the area of workpiece in the horizontal direction of die, side punching structure can be arranged, so that side punching structure is formed from the inside of workpiece to the outside stamping side punching, the size of stamping die in horizontal direction is reduced, and the convenience of stamping die layout is improved.

Description

Technical Field

[0001] This invention relates to the field of mold technology, and more specifically to a stamping mold. Background Technology

[0002] Stamping is a forming process that uses a press and dies to apply external force to raw materials such as sheet metal and strip, causing them to undergo plastic deformation or separation, thereby obtaining stamped parts of the desired shape and size. Currently, most vehicle body panels, such as fenders, are manufactured using stamping.

[0003] In related technologies, raw materials are placed in a mold and first stamped to form a workpiece. The mold typically contains a punch head for side-punching the workpiece, located on one side of the workpiece in the horizontal direction. After the workpiece is formed, the punch head is usually driven to move horizontally towards the workpiece, punching from the outside to the inside of the workpiece to create a hole on its side. However, the unreasonable arrangement of the punch head within the mold results in the mold occupying a large horizontal space in the stamping workshop, making layout inconvenient. Summary of the Invention

[0004] In view of this, the present invention aims to provide a stamping die to solve the problem that the stamping die occupies a large space in the horizontal direction and is inconvenient to lay out in the prior art.

[0005] This invention provides a stamping die, comprising an upper die and a lower die arranged opposite to each other;

[0006] A side punching structure and a limiting structure for limiting the workpiece are provided between the upper mold and the lower mold.

[0007] At least a portion of the side punch structure and the limiting structure are stacked together along the height direction of the stamping die, and the side punch structure is slidably connected to one of the upper die and the lower die;

[0008] The limiting structure has a limiting wall, which is located on one side of the side punching structure, and an avoidance channel is provided on the limiting wall;

[0009] A driving member is provided on the other of the upper die and the lower die. The driving member is used to drive the side punching structure to move toward the limiting wall to extend into the clearance channel so as to punch the part of the workpiece located between the side punching structure and the limiting wall.

[0010] Optionally, the side punching structure includes a sliding seat and a punch;

[0011] The sliding seat is slidably connected to one of the upper die and the lower die. The punch is disposed on the side of the sliding seat facing the limiting wall. At least a portion of the punch is used to pass through the clearance channel to punch the workpiece.

[0012] Optionally, the side punching structure further includes a telescopic member surrounding the outer circumference of the punch, one end of the telescopic member being connected to the sliding seat, and the other end of the telescopic member being used to abut against the workpiece;

[0013] The telescopic component includes a flexible telescopic sleeve fitted onto the punch, and the flexible telescopic sleeve has an opening on the side facing the limiting wall for the punch to enter or exit.

[0014] Optionally, the aperture of the clearance channel on the side facing the side punch structure is larger than the aperture of the clearance channel on the side away from the side punch structure.

[0015] And / or, the limiting wall is provided with an avoidance through hole, and the inner cavity of the avoidance through hole is formed as the avoidance channel.

[0016] Optionally, the limiting wall is provided with a clearance blind hole, and the inner cavity of the clearance blind hole is formed as the clearance channel;

[0017] The limiting wall is provided with a discharge channel. One end of the discharge channel is connected to the avoidance blind hole, and the other end of the discharge channel is open and extends toward the direction close to the lower mold.

[0018] Optionally, a waste collection component is provided on the lower mold, and the other end of the discharge channel is connected to the inner cavity of the waste collection component;

[0019] The waste collection component is detachably connected to the lower mold.

[0020] Optionally, at least one first elastic element is connected between the side of the side punching structure facing the limiting wall and the lower die. The first elastic element is used to drive the side punching structure to move away from the limiting wall after the side punching structure is punched.

[0021] The first elastic element includes a nitrogen spring;

[0022] And / or, at least one second elastic member is provided on the side of the side punching structure opposite to the limiting wall, the second elastic member being connected to one of the upper die and the lower die, and used to abut against the side of the side punching structure opposite to the limiting wall.

[0023] The second elastic element includes a nitrogen spring.

[0024] Optionally, the driving member and the limiting wall are respectively disposed on opposite sides of the side punch structure.

[0025] Optionally, the driving member is provided with a first inclined surface, and the side punching structure is provided with a second inclined surface that matches the first inclined surface. The first inclined surface and the second inclined surface abut against each other when the upper mold and the lower mold move toward each other. When the first inclined surface and the second inclined surface abut against each other, the driving member drives the side punching structure to move toward the direction of the limiting wall.

[0026] Optionally, the limiting structure includes a bearing member and a limiting member;

[0027] The support member is disposed on the lower die and is used to support the workpiece, and at least part of the side punch structure is located on the side of the support member opposite to the upper die;

[0028] The limiting member is disposed on the upper mold and can move toward the bearing member to abut against the workpiece;

[0029] The limiting wall is connected to the limiting member.

[0030] Optionally, a third elastic element is provided between the limiting element and the upper mold, and the two ends of the third elastic element are respectively connected to the upper mold and the limiting element;

[0031] There are at least two third elastic elements, and the at least two third elastic elements are arranged at intervals.

[0032] And / or, the third elastic element includes a nitrogen spring;

[0033] And / or, the limiting wall is integrally formed with the limiting member.

[0034] Optionally, the side punch structure is provided with a first guide portion, and the limiting wall is provided with a second guide portion. The first guide portion and the second guide portion are connected to each other to guide the side punch structure.

[0035] One of the first guide portion and the second guide portion includes a guide post, and the other of the first guide portion and the second guide portion includes a guide sleeve into which the guide post can extend, wherein the axial direction of the guide post is the same as the axial direction of the clearance channel;

[0036] And / or, at least two first guide portions are provided at intervals on the side punch structure, and at least two second guide portions are provided at intervals on the limiting wall, with the first guide portions and the second guide portions corresponding one-to-one.

[0037] Optionally, there are two side punch structures, which are respectively disposed on both sides of the limiting wall. The limiting wall has a clearance channel on the side facing each side punch structure. There are two driving members, with one driving member corresponding to one side punch structure.

[0038] The limiting wall is provided with a discharge channel, which is connected to all the avoidance channels.

[0039] The stamping die provided by this invention, by providing a side punching structure and a limiting structure for limiting the workpiece between an upper die and a lower die, allows at least a portion of the side punching structure and the limiting structure to be stacked along the height direction of the stamping die, and allows the side punching structure to be slidably connected to one of the upper die and the lower die. The limiting structure has a limiting wall located on one side of the side punching structure in the horizontal direction, and the limiting wall is provided with a clearance channel. A driving member is provided on the other of the upper die and the lower die, the driving member being used to drive the side punching structure to move toward the limiting wall to extend into the clearance channel, so as to punch the portion of the workpiece located between the side punching structure and the limiting wall. Since at least some of the side punching structures and limiting structures are stacked along the height direction of the stamping die, that is, at least some of the side punching structures and the workpiece are stacked along the height direction of the stamping die, the projection of the side punching structure in the horizontal direction of the die and the projection of the workpiece in the horizontal direction of the die have overlapping areas. In other words, the side punching structure and the workpiece have overlapping dimensions in the horizontal direction of the die. In this way, the area of ​​the workpiece in the horizontal direction of the die can be used to arrange the side punching structure and also as the stroke space of the side punching structure, so that the side punching structure can be punched from the inside to the outside of the workpiece to form a side punch. Compared with the existing technology where the punch head is located on one side of the workpiece in the horizontal direction, the arrangement of the side punching structure in the stamping die is more reasonable, reducing the size of the stamping die in the horizontal direction, thereby reducing the space that the die needs to occupy in the horizontal direction of the stamping workshop to a certain extent and improving the convenience of die layout.

[0040] Meanwhile, since the side punch structure and the workpiece are stacked along the height direction of the stamping die, the projection of the side punch structure on the raw material of the workpiece overlaps with the area on the raw material used to form the workpiece. This reduces the size of the area on the raw material other than the area used to form the workpiece. In other words, the area on the raw material that cannot be formed due to being covered by the side punch structure is reduced, thus reducing the waste area on the raw material that cannot be formed, thereby improving the utilization rate of the raw material. Attached Figure Description

[0041] Figure 1 This is a cross-sectional view of a stamping die according to an embodiment of the present invention;

[0042] Figure 2 This is a cross-sectional view of the stamping die in use according to an embodiment of the present invention;

[0043] Figure 3 for Figure 2 Sectional view of AA;

[0044] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0045] Figure 5 This is a schematic diagram illustrating the stamping of two workpieces onto a stamping die according to an embodiment of the present invention;

[0046] Figure 6 This is a schematic diagram of a stamping die forming two workpieces in the prior art.

[0047] Among them, 100, mold; 1, upper mold; 2, lower mold; 3, side punching structure; 31, sliding seat; 311, second inclined surface; 32, punch; 41, limiting component; 42, limiting wall; 421, clearance channel; 422, discharge channel; 5, driving component; 51, first inclined surface; 6, telescopic component; 7, waste collection component; 81, first elastic component; 82, second elastic component; 83, third elastic component; 91, first guide part; 92, second guide part; 200, workpiece; 300, raw material. Detailed Implementation

[0048] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0049] Stamping is a forming process that uses a press and dies to apply external force to raw materials such as sheet metal, strip, tube, and profile, causing them to undergo plastic deformation or separation, thereby obtaining stamped parts of the desired shape and size. Currently, most vehicle body panels, such as fenders, are manufactured using stamping.

[0050] In related technologies, raw materials are placed in a mold and first stamped to form a workpiece. The mold typically contains a punch head for side-punching the workpiece, located on one side of the workpiece in the horizontal direction. After the workpiece is formed, the punch head is usually driven to move horizontally towards the workpiece, punching from the outside to the inside of the workpiece to create a hole on its side. However, the unreasonable arrangement of the punch head within the mold results in the mold occupying a large horizontal space in the stamping workshop, making layout inconvenient.

[0051] Based on this, embodiments of the present invention provide a stamping die, which stacks at least a portion of the side punching structure and the workpiece limiting structure along the height direction of the stamping die. That is, the side punching structure and the workpiece limited by the limiting structure are stacked along the height direction of the stamping die. In this way, the projection of the side punching structure in the horizontal direction of the die and the projection of the workpiece in the horizontal direction of the die have an overlapping area. In other words, the side punching structure and the workpiece have overlapping dimensions in the horizontal direction. Thus, the area of ​​the workpiece in the horizontal direction of the die can not only arrange the side punching structure, but also be used as the stroke space of the side punching structure, so that the side punching structure can be punched from the inside to the outside of the workpiece to form a side punch. The arrangement of the side punching structure in the die is more reasonable, reducing the size of the die in the horizontal direction, thereby reducing the space occupied by the die in the horizontal direction in the stamping workshop to a certain extent and improving the convenience of die layout. At the same time, the size of the side punch structure on the raw material is reduced, except for the area used to form the workpiece. In other words, the area on the raw material that cannot be formed due to being covered by the side punch structure is reduced, thus reducing the waste area on the raw material that cannot be formed, thereby improving the utilization rate of the raw material.

[0052] The stamping die provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments:

[0053] Reference Figures 1 to 6 As shown, this embodiment provides a stamping die 100, which includes an upper die 1 and a lower die 2 disposed opposite to each other.

[0054] For details, please refer to Figures 1 to 4 As shown, a side punching structure 3 and a limiting structure for limiting the workpiece 200 are provided between the upper die 1 and the lower die 2. At least part of the side punching structure 3 and the limiting structure are aligned along the height direction of the stamping die 100 (reference). Figure 3 The side punching structure 3 is slidably connected to one of the upper die 1 and the lower die 2 (as shown in the Z-direction). The limiting structure has a limiting wall 42 extending toward the side where the side punching structure 3 is located. The limiting wall 42 is located on one side of the side punching structure 3 in the horizontal direction. The limiting wall 42 is provided with a clearance channel 421. The other of the upper die 1 and the lower die 2 is provided with a driving member 5. The driving member 5 is used to drive the side punching structure 3 to move toward the limiting wall 42 to extend into the clearance channel 421, so as to punch the part of the workpiece 200 located between the side punching structure 3 and the limiting wall 42.

[0055] It should be noted that after the workpiece 200 is positioned within the mold 100 by the limiting structure, a portion of the workpiece 200 and the side punching structure 3 are stacked together along the height direction of the stamping mold 100, with the portion of the workpiece 200 to be punched located between the side punching structure 3 and the limiting wall 42. Specifically, the portion of the workpiece 200 to be punched can, for example, be stopped on the side of the limiting wall 42 facing the side punching structure 3.

[0056] By stacking at least a portion of the side punch structure 3 and the limiting structure along the height direction of the stamping die 100, the side punch structure 3 and the workpiece 200 limited by the limiting structure are stacked along the height direction of the stamping die 100. That is, in the height direction of the stamping die 100, the side punch structure 3 is arranged on one side of the workpiece 200, so that the projection of the side punch structure 3 in the horizontal direction of the die 100 and the projection of the workpiece 200 in the horizontal direction of the die 100 have an overlapping portion. In this way, in the horizontal direction of the die 100, the side punch structure 3 and the workpiece 200 have overlapping dimensions. Compared with the prior art where the side punch structure 3 is arranged on one side of the workpiece 200 in the horizontal direction, the size of the die 100 in the horizontal direction is reduced at least, thereby reducing the volume of the die 100 and facilitating the layout and assembly of the die 100.

[0057] Furthermore, in the height direction of the stamping die 100, the side punching structure 3 is arranged on one side of the workpiece 200, such that the projection of the side punching structure 3 onto the raw material 300 of the workpiece 200 overlaps with the area on the raw material 300 used to form the workpiece 200. Thus, the area of ​​the workpiece 200 in the horizontal direction of the die 100 can be used both to arrange the side punching die 100 and as the stroke space for the side punching structure 3, allowing the side punching structure 3 to punch from the inside to the outside of the workpiece 200 to form a side punch. Compared with the existing technology where the side punching structure 3 is arranged on one side of the workpiece 200 along the horizontal direction and the side punching structure 3 is punched from the outside to the inside of the workpiece 200 to form the side punching hole, the size occupied by the side punching structure 3 in the area of ​​the raw material 300 other than the workpiece 200 is reduced. In other words, the area of ​​the raw material 300 that cannot be formed by the side punching structure 3 is reduced, that is, the waste area of ​​the raw material 300 that cannot be formed by the workpiece 200 is reduced, thereby improving the utilization rate of the raw material 300.

[0058] Meanwhile, in the height direction of the stamping die 100, the side punching structure 3 is arranged on one side of the workpiece 200, so that the punching structure punches from the inside to the outside of the workpiece 200 to form a side punch, so that the burrs generated by the side punch are on the outside of the workpiece 200, which facilitates the removal of burrs.

[0059] In practice, the limiting structure is used to position the workpiece 200 produced by the die 100 during stamping, so that the position of the workpiece 200 relative to the die 100 remains fixed at least during the side punching process, which facilitates the side punching structure 3 to punch the workpiece 200 to form a side punch.

[0060] In some implementations, the driving component 5 can move towards the lower die 2 under the drive of the upper die 1 to cooperate with the side punching structure 3, thereby driving the side punching structure 3 to move towards the limiting wall 42 to achieve side punching.

[0061] Of course, in some other implementations, the driving component 5 can be a motor, etc., and the driving component 5 for the side punching does not depend on the movement of the upper die 1.

[0062] The stamping die 100 provided in this embodiment, by providing a side punching structure 3 and a limiting structure for limiting the workpiece 200 between the upper die 1 and the lower die 2, allows at least a portion of the side punching structure 3 and the limiting structure to be stacked along the height direction of the stamping die 100, and allows the side punching structure 3 to be slidably connected to one of the upper die 1 and the lower die 2. The limiting structure has a limiting wall 42, which is located on one side of the side punching structure 3 in the horizontal direction, and a clearance channel 421 is provided on the limiting wall 42. A driving member 5 is provided on the other of the upper die 1 and the lower die 2, and the driving member 5 is used to drive the side punching structure 3 to move toward the limiting wall 42 to extend into the clearance channel 421, so as to punch the portion of the workpiece 200 located between the side punching structure 3 and the limiting wall 42. Since at least a portion of the side punching structure 3 and the limiting structure are stacked along the height direction of the stamping die 100, that is, at least a portion of the side punching structure 3 and the workpiece 200 are stacked along the height direction of the stamping die, the projection of the side punching structure 3 in the horizontal direction of the die 100 and the projection of the workpiece 200 in the horizontal direction of the die 100 have overlapping areas. In other words, the side punching structure 3 and the workpiece 200 have overlapping dimensions in the horizontal direction of the die 100. Thus, by utilizing the area of ​​the workpiece 200 in the horizontal direction of the die 100, the side punching structure 3 can be arranged... The punching structure 3 can also be used as the stroke space for the side punching structure 3, allowing the side punching structure 3 to punch from the inside to the outside of the workpiece 200 to form a side punch. Compared with the prior art where the punching head is arranged on one side of the workpiece 200 in the horizontal direction, the arrangement of the side punching structure 3 in the stamping die 100 is more reasonable, reducing the size of the stamping die 100 in the horizontal direction. This reduces the space that the stamping die 100 needs to occupy in the horizontal direction in the stamping workshop to a certain extent, and improves the convenience of the layout of the stamping die 100 in the stamping workshop.

[0063] Meanwhile, since the side punch structure 3 and the workpiece 200 are stacked along the height direction of the stamping die 100, the projection of the side punch structure 3 on the raw material 300 of the workpiece 200 overlaps with the area on the raw material 300 used to form the workpiece 200. This reduces the size of the area on the raw material 300 other than the area used to form the workpiece 200. In other words, the area on the raw material 300 that cannot form the workpiece 200 due to being covered by the side punch structure 3 is reduced, thus reducing the waste area on the raw material 300 that cannot form the workpiece 200, thereby improving the utilization rate of the raw material 300.

[0064] In some implementations, refer to Figure 3 and Figure 4 As shown, in the height direction of the stamping die 100, the side punching structure 3 is arranged below the workpiece 200, and the side punching structure 3 is slidably connected to the lower die 2. The limiting structure has a downwardly extending limiting wall 42, and the workpiece 200 has a flange to be punched, which can extend downwards, and the flange is located between the sides of the limiting wall 42 facing the side punching structure 3. A driving member 5 is provided on the upper die 1.

[0065] In other embodiments, a side punching structure 3 is arranged above the workpiece 200 in the height direction of the stamping die 100, and the side punching structure 3 is slidably connected to the upper die 1. The limiting structure has an upwardly extending limiting wall 42, and the workpiece 200 has a flange to be punched, which may extend upwards and is located between the sides of the limiting wall 42 facing the side punching structure 3. A driving member 5 is provided on the lower die 2.

[0066] The following embodiment is illustrated by taking a side punching structure 3 arranged below the workpiece 200, the side punching structure 3 being slidably connected to the lower die 2, and the upper die 1 being provided with a driving component 5.

[0067] In some embodiments, the side punching structure 3 is provided with a first sliding part, and the lower die 2 is provided with a second sliding part. The side punching structure 3 is slidably connected to the lower die 2 through the cooperation of the first sliding part and the second sliding part. The structure is simple and easy to manufacture.

[0068] In a specific implementation, the first sliding part can be, for example, a slide rail, and the second sliding part is a groove that matches the slide rail.

[0069] Of course, in other implementations, the first sliding part can be a groove, and the second sliding part can be a slide rail that can extend into the groove.

[0070] In other embodiments, the side punch structure 3 and the lower die 2 can also be slidably connected, for example, by a ball screw.

[0071] In some embodiments, the side punching structure 3 includes a sliding seat 31 and a punch 32. The sliding seat 31 is slidably connected to one of the upper die 1 and the lower die 2. The punch 32 is disposed on the side of the sliding seat 31 facing the limiting wall 42. At least a portion of the punch 32 is used to pass through the clearance channel 421 to punch the flange of the workpiece 200, thereby forming an opening on the flange of the workpiece 200.

[0072] For example, the sliding seat 31 is slidably connected to the lower die 2. During side punching, the sliding seat 31 moves toward the direction close to the limiting wall 42 under the drive of the driving member 5, so that the punch 32 extends into the clearance channel 421, thereby forming a punch on the flange of the workpiece 200.

[0073] In practice, the sliding seat 31 can be slidably connected to the lower mold 2 by means of a slide rail and a slide groove.

[0074] During side punching, since the punch 32 is inserted into the clearance channel 421, the waste generated by the side punching of the punch 32 can be discharged from the clearance channel 421.

[0075] In some implementations, the shape of the punch 32 matches the shape of the clearance channel 421 to facilitate side punching.

[0076] For example, the punch 32 is circular, and the inner cavity of the clearance channel 421 can be a cylindrical through hole, and the radial cross section of the clearance channel 421 is circular.

[0077] refer to Figure 4 As shown, in some embodiments, the side punch structure 3 further includes a telescopic member 6 surrounding the punch 32 outwards. One end of the telescopic member 6 is connected to the sliding seat 31, and the other end of the telescopic member 6 is used to abut against the workpiece 200.

[0078] By providing a telescopic member 6 on the circumferential outer side of the punch 32, the telescopic member 6 is connected to the sliding seat 31. In this way, during side punching, the telescopic member 6 and the punch 32 move with the sliding seat 31. When the end of the telescopic member 6 away from the sliding seat 31 abuts against the workpiece 200, the telescopic member 6 can press down on the workpiece 200 and push the workpiece 200 against the limiting wall 42, making the position of the limiting wall 42 more stable during side punching, thus facilitating the side punching of the punch 32.

[0079] The telescopic component 6 can extend and retract elastically, so it can be reset after the side punching operation is completed, making it convenient to use.

[0080] In a specific implementation, the telescopic component 6 includes a flexible telescopic sleeve fitted on the punch 32, and the side of the flexible telescopic sleeve facing the limiting wall 42 has an opening for the punch 32 to enter or move out.

[0081] By setting the telescopic component 6 as a flexible telescopic sleeve, which surrounds the outer circumference of the punch 32, the flexible telescopic sleeve can not only press down on the workpiece 200 during side punching, making the workpiece 200 more stable, but also provide a certain degree of protection for the punch 32, thus extending the service life of the punch 32 to some extent.

[0082] The flexible telescopic sleeve can be, for example, a rubber sleeve or a silicone sleeve.

[0083] In other implementations, the telescopic component can be, for example, a spring.

[0084] refer to Figure 4 As shown, in some embodiments, the aperture of the avoidance channel 421 on the side facing the side punching structure 3 is larger than the aperture of the avoidance channel 421 on the side away from the side punching structure 3. That is, the aperture of the avoidance channel 421 on the side facing the sliding seat 31 is larger than the aperture of the avoidance channel 421 on the side away from the sliding seat 31. In this way, the waste material formed during side punching can be discharged more easily after entering the avoidance channel 421.

[0085] In practice, the minimum aperture of the clearance channel 421 facing the sliding seat 31 is greater than the diameter of the punch 32.

[0086] In some embodiments, the limiting wall 42 is provided with an avoidance through hole, and the inner cavity of the avoidance through hole is formed as an avoidance channel 421, so that the waste generated during side punching can be directly discharged through the avoidance through hole.

[0087] refer to Figure 3 and Figure 4 As shown, in some embodiments, the limiting wall 42 is provided with a clearance blind hole, and the inner cavity of the clearance blind hole is formed as a clearance channel 421. A discharge channel 422 with openings at both ends is provided inside the limiting wall 42. One end of the discharge channel 422 is connected to the clearance channel 421, and the other end of the discharge channel 422 extends toward the direction close to the lower mold 2.

[0088] By setting a discharge channel 422 that communicates with the clearance channel 421 inside the limiting wall 42, the end of the discharge channel 422 that is away from the clearance channel 421 extends towards the lower die 2. In this way, during side punching, as long as the waste enters the discharge channel 422, it can move downward and be discharged under the action of gravity, making it easier to discharge the waste formed by side punching.

[0089] refer to Figure 3 and Figure 4 As shown, in some embodiments, a waste collection component 7 is provided on the lower mold 2, and the other end of the discharge channel 422 is connected to the inner cavity of the waste collection component 7.

[0090] By setting a waste collection component 7 on the lower mold 2, the other end of the discharge channel 422, namely one end of the discharge channel 422's back-avoidance channel 421, is connected to the inner cavity of the waste collection component 7. In this way, the waste discharged from the discharge channel 422 can enter the waste collection component 7, making it easier to collect the waste and clean it up.

[0091] Among them, the waste collection component 7 can be, for example, a waste tray, a waste box, a waste drawer, etc.

[0092] In practice, the waste collection component 7 can be detachably connected to the lower mold 2, so that the waste collection component 7 can be removed from the lower mold 2 and the waste inside the waste collection component 7 can be cleaned, further improving the convenience of waste cleaning.

[0093] In some implementations, the lower die 2 may have a receiving groove for accommodating the waste collection piece 7. The opening of the receiving groove is opened on the side wall of the lower die. The waste collection piece 7 can be placed into the receiving groove from the opening of the receiving groove, or removed from the receiving groove to clean up the collected side punch waste.

[0094] The top of the receiving groove can be open, for example. The lower mold has a receiving port for exposing the opening at the position corresponding to the opening. The bottom end of the discharge channel 422 can be located directly above the receiving port. The side punch waste discharged through the discharge channel 422 enters the waste collection component 7 in sequence through the receiving port and the opening.

[0095] In practice, the receiving port can be an opening coaxial with the opening, or it can be a hollow cylindrical hole coaxial with the opening.

[0096] refer to Figure 3 and Figure 4 As shown, in some embodiments, at least one first elastic member 81 is connected between the side of the side punching structure 3 facing the limiting wall 42 and the lower die 2. The first elastic member 81 is used to drive the side punching structure 3 to move away from the limiting wall 42 after the side punching structure 3 has completed punching.

[0097] By connecting the first elastic element 81 between the side punch structure 3 and the limiting wall 42, the side punch structure 3 can move away from the limiting wall 42 under the elastic force of the first elastic element 81 after the side punching is completed, which facilitates the reset of the side punch structure 3 and makes it easy to use.

[0098] In a specific implementation, for example, a first elastic element 81 can be connected between the side punch structure 3 and the limiting wall 42. Of course, multiple first elastic elements 81 can also be connected between the side punch structure 3 and the limiting wall 42. The multiple first elastic elements 81 are arranged at intervals to further facilitate the reset of the side punch structure 3.

[0099] In some implementations, the first elastic element 81 can be, for example, a nitrogen spring. Of course, in other implementations, the first elastic element can also be, for example, a mechanical spring, a hydraulic cylinder, a pneumatic cylinder, etc.

[0100] refer to Figure 1 and Figure 2 As shown, in some embodiments, at least one second elastic member 82 is provided on the side of the side punching structure 3 away from the limiting wall 42. The second elastic member 82 is connected to one of the upper mold 1 and the lower mold 2 and is used to abut against the side of the side punching structure 3 away from the limiting wall 42.

[0101] By providing a second elastic element 82 on the side of the side punch structure 3 away from the limiting wall 42, one end of the second elastic element 82 is connected to the lower mold 2 connected to the side punch structure 3, and the other end of the second elastic element 82 is used to abut against the side punch structure 3. In this way, when the side punch structure 3 moves away from the limiting wall 42 to reset, when the side punch structure 3 moves to the preset position, the second elastic element 82 can support the side punch structure 3. The second elastic element 82 plays a certain role in resetting and limiting the side punch structure 3, avoiding the phenomenon of the side punch structure 3 colliding with the lower mold 2 due to excessive movement. Therefore, the second elastic element 82 has a certain protective effect on both the side punch structure 3 and the mold 100.

[0102] In practice, multiple second elastic elements 82 can be provided on the side of the side punching structure 3 away from the limiting wall 42. The multiple second elastic elements 82 are spaced apart, which improves the reset limiting effect of the side punching structure 3 and further avoids the phenomenon of the side punching structure 3 colliding with the lower mold 2 due to excessive movement. This provides better protection for the side punching structure 3 and the mold 100.

[0103] In some implementations, the second elastic element 82 can be, for example, a nitrogen spring. Of course, in other implementations, the second elastic element can also be, for example, a mechanical spring, a hydraulic cylinder, a pneumatic cylinder, etc.

[0104] refer to Figure 3 As shown, in some embodiments, the projection of the driving member 5 on one of the upper mold 1 and the lower mold 2 is located on the side of the side punching structure 3 away from the limiting wall 42. This arrangement ensures that the driving member 5 is located on the side of the side punching structure 3 away from the limiting wall 42 in the horizontal direction along the mold 100. That is, the driving member 5 and the limiting wall 42 are respectively located on opposite sides of the side punching structure 3 in the horizontal direction along the mold 100. This makes it easier for the driving member 5 to drive the side punching structure 3 to move in a straight line during side punching, resulting in higher driving efficiency of the driving member 5.

[0105] refer to Figure 3 As shown, in some embodiments, the driving member 5 is provided with a first inclined surface 51, and the side punching structure 3 is provided with a second inclined surface 311 that matches the first inclined surface 51. The first inclined surface 51 and the second inclined surface 311 abut against each other when the upper mold 1 and the lower mold 2 move toward each other. When the first inclined surface 51 abuts against the second inclined surface 311, the driving member 5 drives the side punching structure 3 to move toward the direction of approaching the limiting wall 42.

[0106] In some implementations, the driving component 5 is set on the upper mold 1, and the driving component 5 is relatively fixed to the upper mold 1.

[0107] By setting a first inclined surface 51 on the driving component 5 and a second inclined surface 311 on the side punching structure 3, when the upper mold 1 moves toward the direction closer to the lower mold 2 (i.e., the upper mold 1 moves downward along the height direction of the mold 100) until the first inclined surface 51 and the second inclined surface 311 come into contact, the driving component 5 exerts a horizontal component force on the side punching structure 3. Thus, during the process of the driving component 5 moving toward the direction closer to the lower mold 2 under the drive of the upper mold 1, it can drive the side punching structure 3 to move in the horizontal direction toward the direction closer to the stop wall. In this way, with the cooperation of the first inclined surface 51 and the second inclined surface 311, the vertical movement of the driving component 5 is converted into the horizontal movement of the side punching structure 3. The driving component 5 and the side punching structure 3 form a wedge mechanism, making the movement of the side punching structure 3 convenient and stable.

[0108] In a specific implementation, the first inclined surface 51 can be set at the bottom of the driving component 5, and the second inclined surface 311 can be set at the top of the sliding seat 31 on the side away from the stop wall.

[0109] In practice, in the direction from the side punch structure 3 to the limiting wall 42, the first inclined surface 51 and the second inclined surface 311 are both inclined in a direction away from the moving direction of the side punch structure 3, so that the movement of the side punch structure 3 is more convenient.

[0110] refer to Figure 3 and Figure 4 As shown, in some embodiments, the limiting structure includes a carrier and a limiting member 41. The carrier is disposed on the lower die 2 and is used to carry the workpiece 200. At least a portion of the side punch structure 3 is located on the side of the carrier facing away from the upper die 1. The limiting member 41 is disposed on the upper die 1 and is movable toward the carrier to abut against the workpiece 200. A limiting wall 42 is connected to the limiting member 41. Specifically, the limiting member 41, the carrier, and at least a portion of the sliding seat 31 are stacked along the height direction of the stamping die, such that the limiting member 41, the workpiece 200, and at least a portion of the sliding seat 31 are stacked along the height direction of the stamping die.

[0111] In practice, the raw material 300 is placed inside the mold 100, and the workpiece 200 is formed by stamping on the raw material 300. The workpiece 200 is then located on the support of the lower mold 2.

[0112] By setting a limiting member on the upper die 1, and the limiting member being able to move toward the bearing member, the limiting member can move downward to abut against the workpiece 200 during side punching, making the position of the workpiece 200 more stable, thereby fixing the workpiece 200 on the bearing member, making it easier for the side punching structure 3 to side punch the workpiece 200 and realize side punching.

[0113] In practice, the limiting component 41 can be fixedly connected to the upper mold 1. When the press drives the upper mold 1 to move downward toward the lower mold 2, the limiting component 41 can abut against the workpiece 200 under the drive of the upper mold 1, so that the movement of the limiting component 41 does not require additional driving force, making it convenient to use.

[0114] For example, both the limiting member 41 and the driving member 5 are connected to the upper die 1. In specific use, when the press drives the upper die 1 to move downward toward the direction of the lower die 2, the limiting member 41 and the driving member 5 move simultaneously toward the direction of the lower die 2 under the drive of the upper die 1. The limiting member 41 abuts against the workpiece 200 to limit the workpiece 200. The first inclined surface 51 of the driving member 5 abuts against the second inclined surface 311 of the side punching structure 3, so that the driving member 5 can drive the side punching structure 3 to move toward the direction of the stop wall during the downward movement, thereby realizing side punching, which is convenient to use.

[0115] In some implementations, the stroke of the limiting member 41 is less than that of the driving member 5. In this way, before the first inclined surface 51 of the driving member 5 and the second inclined surface 311 of the side punching structure 3 come into contact, the limiting member 41 can come into contact with the workpiece 200, thereby limiting the workpiece 200 and improving the accuracy and convenience of the side punching operation.

[0116] refer to Figure 3 As shown, in some embodiments, a third elastic member 83 is provided between the limiting member 41 and the upper mold 1, and the two ends of the third elastic member 83 are respectively connected to the upper mold 1 and the limiting member 41.

[0117] The limiting member 41 is connected to the upper mold 1 by the third elastic member 83. Since the third elastic member 83 is elastic, it can prevent the limiting member 41 from excessively abutting the workpiece 200, thus providing a certain degree of protection for the workpiece 200 and improving the safety of the side punching operation.

[0118] In practice, multiple third elastic elements 83 can be provided between the limiting element 41 and the upper mold 1. The multiple third elastic elements 83 are spaced apart in the horizontal direction, which improves the rebound performance of the limiting element 41 and further avoids the phenomenon of the limiting element 41 excessively abutting against the workpiece 200. Thus, the limiting element 41 has a better protection effect on the workpiece 200 while limiting it.

[0119] In practical implementation, the third elastic element 83 can be, for example, a nitrogen spring, which has a simple structure and is easy to manufacture. Of course, in other implementations, the third elastic element can also be a mechanical spring, a hydraulic cylinder, a pneumatic cylinder, etc.

[0120] In some embodiments, the limiting wall 42 and the limiting member 41 are integrally formed, that is, the limiting wall 42 and the limiting member 41 are a single structure with good integrity and high structural strength, which improves the stopping strength of the limiting wall 42 for the flange of the hole to be punched on the workpiece 200. Moreover, the limiting member 41 has a limiting wall 42 and a clearance channel 421 for the punch 32 of the side punching structure 3 to extend into. In this way, before the side punching process, the limiting wall 42 can be retracted together with the limiting member 41, avoiding the phenomenon of the limiting wall 42 interfering with the workpiece 200 and improving the safety of the stamping process.

[0121] refer to Figure 1 and Figure 2 As shown, in some embodiments, a first guide portion 91 is provided on the side punching structure 3, and a second guide portion 92 is provided on the limiting wall 42. The first guide portion 91 and the second guide portion 92 are connected to guide the side punching structure 3 to cooperate with the avoidance channel 421. In this way, the cooperation of the first guide portion 91 and the second guide portion 92 guides the side punching structure 3 to enter the avoidance channel 421, ensuring the accuracy of the side punching.

[0122] In practical use, the sliding seat 31 moves toward the direction of the limiting wall 42. When performing side punching, the first guide part 91 and the second guide part 92 first cooperate and connect, and then the punch 32 enters the clearance channel 421 to perform side punching, which improves the accuracy of side punching.

[0123] In some embodiments, one of the first guide portion 91 and the second guide portion 92 includes a guide post, and the other of the first guide portion 91 and the second guide portion 92 includes a guide sleeve into which the guide post can extend. The axial direction of the guide post is the same as the axial direction of the clearance channel 421. The structure is simple and easy to manufacture.

[0124] In some implementations, a guide sleeve may be provided on the side of the limiting wall 42 facing the sliding seat 31, and a guide post may be provided on the side of the sliding seat 31 facing the limiting wall 42.

[0125] In some other implementations, the side of the limiting wall 42 facing the sliding seat 31 may be provided with a guide post, and the side of the sliding seat 31 facing the limiting wall 42 may be provided with a guide sleeve.

[0126] In some other embodiments, one of the first guide portion 91 and the second guide portion 92 is a guide block, and the other of the first guide portion 91 and the second guide portion 92 is a guide plate.

[0127] In practice, at least two first guide parts 91 are spaced apart on the side punching structure 3, and at least two second guide parts 92 are spaced apart on the limiting wall 42. The first guide parts 91 and the second guide parts 92 are arranged in a one-to-one correspondence. In other words, multiple sets of guide structures are arranged between the side punching structure 3 and the limiting wall 42. The multiple sets of guide structures are spaced apart, which further improves the accuracy of side punching.

[0128] refer to Figures 1 to 3 As shown, in some embodiments, there are two side punching structures 3, which are respectively disposed on both sides of the limiting wall 42. The limiting wall 42 has a clearance channel 421 on the side facing each side punching structure 3, and a discharge channel 422 connected to all clearance channels 421 is provided in the limiting wall 42. There are two driving members 5, one driving member 5 corresponding to one side punching structure 3. In this way, two workpieces 200 can be side punched at the same time, which improves the working efficiency of side punching operation.

[0129] refer to Figure 3 and Figure 4 As shown, a discharge channel 422 is provided inside the limiting wall 42. The discharge channel 422 is connected to all the avoidance channels 421. The side of the discharge channel 422 that is away from the avoidance channel 421 is open and extends towards the direction close to the lower mold. In this way, the mold 100 can perform side punching operations on two workpieces 200 at the same time, and the waste generated during the side punching of the two side punching structures 3 can be discharged from the discharge channel 422.

[0130] Furthermore, when two workpieces 200 are simultaneously subjected to side punching, since the two side punching structures 3 are stacked with the corresponding workpieces 200 in the height direction of the mold 100, the two side punching structures 3 will not occupy the distance between the two workpieces 200, thereby reducing the distance between the two areas on the raw material 300 used to form the workpieces 200. In this way, when two workpieces 200 are formed by stamping on a single raw material 300, the utilization rate of the raw material 300 is improved.

[0131] The following example illustrates how two workpieces 200 are simultaneously stamped from a single raw material 300.

[0132] For example, refer to Figure 6As shown, in the prior art, a large gap needs to be reserved between the two areas on the raw material 300 used to form the workpiece 200 to accommodate the two side punching structures 3. Thus, the horizontal dimension L1 between the two areas on the raw material 300 used to form the workpiece 200 is typically 600mm. After stamping, due to the arrangement of the side punching structures 3, a large scrap area is formed between the two areas of the workpiece 200 on the raw material 300, resulting in a low utilization rate of the raw material 300. Figure 6 The utilization rate of raw material 300 was 32.4%.

[0133] refer to Figure 5 As shown, when the stamping die 100 of this embodiment performs a stamping operation on the raw material 300, since the two side punch structures 3 are respectively arranged below the two workpieces 200, there is no need to reserve a gap between the two areas on the raw material 300 used to form the workpieces 200 for arranging the side punch structures 3. (Reference) Figure 5 and Figure 6 When the workpieces 200 have the same structure, it is only necessary to leave a small gap between the two areas used to form the workpieces 200 on the raw material 300 to separate the stamped workpieces 200.

[0134] refer to Figure 5 As shown, when the workpieces 200 have the same structure, since the two side punch structures 3 are respectively arranged below the two workpieces 200, the horizontal dimension L1 between the two areas used to form the workpieces 200 on the raw material 300 is reduced to 60 μm. Thus, after stamping, due to the arrangement of the side punch structures 3, no waste area is formed between the areas of the two workpieces 200 on the raw material 300, improving the utilization rate of the raw material 300. Figure 6 The utilization rate of raw material 300 was 56.4%.

[0135] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, the terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0136] In this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0137] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications or equivalent substitutions made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stamping die, characterized in that, Including an upper mold (1) and a lower mold (2) that are set relative to each other; A side punching structure (3) and a limiting structure for limiting the workpiece (200) are provided between the upper mold (1) and the lower mold (2); At least a portion of the side punch structure (3) and the limiting structure are stacked together along the height direction of the stamping die; the side punch structure (3) is slidably connected to one of the upper die (1) and the lower die (2); The limiting structure has a limiting wall (42), which is located on one side of the side punching structure (3), and the limiting wall (42) is provided with an avoidance channel (421). A drive member (5) is provided on the other of the upper die (1) and the lower die (2). The drive member (5) is used to drive the side punching structure (3) to move toward the limiting wall (42) to extend into the clearance channel (421) to punch the part of the workpiece (200) located between the side punching structure (3) and the limiting wall (42). The limiting structure includes a bearing member and a limiting member (41). The support member is disposed on the lower die (2) for supporting the workpiece (200), and at least part of the side punch structure (3) is located on the side of the support member opposite to the upper die (1); The limiting member (41) is disposed on the upper mold (1) and can move toward the bearing member to abut against the workpiece (200); The limiting wall (42) is connected to the limiting member (41).

2. The stamping die according to claim 1, characterized in that, The side punch structure (3) includes a sliding seat (31) and a punch (32); The sliding seat (31) is slidably connected to one of the upper die (1) and the lower die (2), and the punch (32) is disposed on the side of the sliding seat (31) facing the limiting wall (42). At least a portion of the punch (32) is used to pass through the clearance channel (421) to punch the workpiece (200).

3. The stamping die according to claim 2, characterized in that, The side punch structure (3) also includes a telescopic member (6) surrounding the outside of the punch (32), one end of the telescopic member (6) being connected to the sliding seat (31), and the other end of the telescopic member (6) being used to abut against the workpiece (200); The telescopic member (6) includes a flexible telescopic sleeve fitted on the punch (32), and the flexible telescopic sleeve has an opening on the side facing the limiting wall (42) for the punch (32) to enter or move out.

4. The stamping die according to claim 1, characterized in that, The aperture of the clearance channel (421) facing the side punch structure (3) is larger than the aperture of the clearance channel (421) away from the side punch structure (3). And / or, the limiting wall (42) is provided with an avoidance through hole, and the inner cavity of the avoidance through hole is formed as the avoidance channel (421).

5. The stamping die according to claim 1, characterized in that, The limiting wall (42) is provided with a blind hole for avoiding obstacles, and the inner cavity of the blind hole for avoiding obstacles forms the avoidance channel (421). The limiting wall (42) is provided with a discharge channel (422), one end of the discharge channel (422) is connected to the avoidance blind hole, and the other end of the discharge channel (422) is open and extends toward the direction close to the lower mold (2).

6. The stamping die according to claim 5, characterized in that, The lower mold (2) is provided with a waste collection component (7), and the other end of the discharge channel (422) is connected to the inner cavity of the waste collection component (7); The waste collection component (7) is detachably connected to the lower mold (2).

7. The stamping die according to claim 1, characterized in that, At least one first elastic element (81) is connected between the side of the side punching structure (3) facing the limiting wall (42) and the lower die (2). The first elastic element (81) is used to drive the side punching structure (3) to move away from the limiting wall (42) after the side punching structure (3) has been punched. The first elastic element (81) includes a nitrogen spring; And / or, at least one second elastic member (82) is provided on the side of the side punching structure (3) away from the limiting wall (42), the second elastic member (82) is connected to one of the upper mold (1) and the lower mold (2), and is used to abut against the side of the side punching structure (3) away from the limiting wall (42); The second elastic element (82) includes a nitrogen spring.

8. The stamping die according to claim 1, characterized in that, The driving component (5) and the limiting wall (42) are respectively located on opposite sides of the side punch structure (3).

9. The stamping die according to claim 8, characterized in that, The driving component (5) is provided with a first inclined surface (51), and the side punch structure (3) is provided with a second inclined surface (311) that matches the first inclined surface (51). The first inclined surface and the second inclined surface abut against each other when the upper mold (1) and the lower mold (2) move toward each other. When the first inclined surface (51) abuts against the second inclined surface (311), the driving member (5) drives the side punch structure (3) to move toward the limiting wall (42).

10. The stamping die according to claim 1, characterized in that, A third elastic element (83) is provided between the limiting member (41) and the upper mold (1), and the two ends of the third elastic element (83) are respectively connected to the upper mold (1) and the limiting member (41); There are at least two third elastic elements (83), and at least two third elastic elements (83) are arranged at intervals; And / or, the third elastic element (83) includes a nitrogen spring; And / or, the limiting wall (42) is integrally formed with the limiting member (41).

11. The stamping die according to any one of claims 1 to 10, characterized in that, The side punch structure (3) is provided with a first guide part (91), and the limiting wall (42) is provided with a second guide part (92). The first guide part (91) and the second guide part (92) are connected to each other to guide the side punch structure (3). One of the first guide portion (91) and the second guide portion (92) includes a guide post, and the other of the first guide portion (91) and the second guide portion (92) includes a guide sleeve into which the guide post can extend; And / or, at least two first guide portions (91) are provided at intervals on the side punch structure (3), and at least two second guide portions (92) are provided at intervals on the limiting wall (42), with the first guide portions (91) and the second guide portions (92) being provided in a one-to-one correspondence.

12. The stamping die according to any one of claims 1 to 10, characterized in that, There are two side punch structures (3), and the two side punch structures (3) are respectively disposed on both sides of the limiting wall (42). The limiting wall (42) has a clearance channel (421) on the side facing each side punch structure (3). There are two driving members (5), and one driving member (5) corresponds to one side punch structure (3). The limiting wall (42) is provided with a discharge channel (422), which is connected to all the avoidance channels (421).

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