corner cutting die

Abstract

The application provides a corner cutting die, which comprises a first die seat, a first punch member and a second punch member. The first punch member comprises a punch connecting part and a punch processing part. The punch connecting part is connected to the first die seat, and the punch processing part is detachably connected to the punch connecting part. The punch processing part is configured to cut a corner of a workpiece. The first punch member is movable along a first direction with the first die seat. The second punch member is located on one side of the first punch member in a second direction. The workpiece can be placed on the second punch member. The second direction intersects the first direction.

Description

Technical Field

[0001] This application relates to the field of processing equipment technology, and in particular to a corner-cutting mold. Background Technology

[0002] Currently, rectangular hole flanges are usually manufactured by casting. After casting, the four chamfers of the rectangular hole flange need to be processed. The chamfering is usually done by casting or machining. However, casting causes environmental pollution and consumes more energy, while machining has more steps and more complex processes, resulting in lower processing efficiency. Utility Model Content

[0003] To address the current problems of environmental pollution and low machining efficiency in chamfering casting, this application provides a chamfering mold that is environmentally friendly and has higher processing efficiency.

[0004] This application provides a corner-cutting die, which includes a first die base, a first punch, and a second punch. The first punch includes a punch connecting portion and a punch processing portion. The punch connecting portion is connected to the first die base, and the punch processing portion is detachably connected to the punch connecting portion. The punch processing portion is configured to cut corners on the workpiece, and the first punch can move with the first die base along a first direction. The second punch is located on one side of the first punch in a second direction, and the workpiece can be placed on the second punch. The second direction intersects the first direction.

[0005] Understandably, the punch machining section can cut corners on the workpiece, and the punch machining section is detachably connected to the punch connecting section. Therefore, different punch machining sections can be connected to the punch connecting section according to different workpieces, and can be driven by the first die holder to move along the first direction for subsequent corner cutting. Replacement is convenient and quick, and processing efficiency is improved. Furthermore, when the punch machining section is not fixedly connected to the punch connecting section, it can rotate relative to the punch connecting section to adjust the machining surface of the punch machining section, that is, adjust the arc-shaped cutting edge working section of the punch machining section, allowing the punch machining section to better process the workpiece. Using a corner cutting die for processing does not cause additional pollution to the environment compared to casting processing, making it more environmentally friendly.

[0006] In one embodiment, the corner-cutting die further includes a connector, a first connecting hole is provided on the punch connecting part, and a second connecting hole is provided on the punch processing part. The connector can pass through the first connecting hole and the second connecting hole to connect the punch connecting part and the punch processing part.

[0007] In one embodiment, the punch processing part is provided with a protrusion, the punch connecting part is provided with a groove, the protrusion is at least partially located in the groove, the second connecting hole is provided on the protrusion, and the first connecting hole communicates with the groove.

[0008] In one embodiment, the punch processing part includes a punch processing base and a plurality of punch corner portions, wherein the punch corner portions are integrally formed on or detachably connected to the punch processing base.

[0009] In one embodiment, the protrusion is at least partially rotatably disposed within the groove, and the protrusion is provided with a plurality of second connecting holes.

[0010] In one embodiment, the corner-cutting die further includes a second die base and a first limiting member. The second punch is connected to the second die base, and the first limiting member is connected to the second die base. The first limiting member is located on the side of the first punch away from the second punch in the second direction. The first limiting member can abut against the first punch in the second direction to limit the displacement of the first punch in the second direction.

[0011] In one embodiment, the corner-cutting die further includes a second limiting member connected to the second die base. The second limiting member is located on the side of the second punch member away from the first punch member in the second direction. The second limiting member can abut against the second punch member in the second direction to limit the displacement of the second punch member in the second direction.

[0012] In one embodiment, the corner-cutting die further includes a third limiting member connected to the second die base. The third limiting member is located on the side of the second limiting member away from the second punch member in the second direction. The third limiting member can abut against the second limiting member in the second direction to limit the displacement of the second limiting member in the second direction.

[0013] In one embodiment, the corner-cutting die further includes an unloading component, a third connecting component, and a positioning component. The unloading component is connected to the second punch component via the third connecting component. The workpiece is located between the unloading component and the second punch component. The positioning component is connected to the unloading component and abuts against the workpiece in the first direction to limit the displacement of the workpiece in the first direction.

[0014] In one embodiment, the corner-cutting mold further includes a fourth limiting member, which is connected to the second mold base and is located on both sides of the unloading member in the third direction. The workpiece can be held against the fourth limiting member, and the third direction, the second direction, and the first direction intersect each other. Attached Figure Description

[0015] Figure 1 This is a cross-sectional schematic diagram of a chamfering mold provided in an embodiment of this application.

[0016] Figure 2 This is a top view of a chamfering mold provided in an embodiment of this application.

[0017] Figure 3 This is a schematic diagram of a workpiece processed by a chamfering die according to an embodiment of this application.

[0018] Figure 4 for Figure 1 A magnified view of the corresponding area IV of the center-cut corner mold.

[0019] Figure 5 This is a top view of the first punch of a chamfering die provided in an embodiment of this application.

[0020] Figure 6 This is a schematic diagram of the second limiting member of a chamfering mold provided in an embodiment of this application.

[0021] Explanation of key component symbols: 100. Corner cutting die; 1. First die base; 2. First punch; 21. Punch connecting part; 211. First connecting hole; 212. Groove; 22. Punch machining part; 221. Punch machining base; 2211. Protrusion; 2212. Second connecting hole; 222. Corner cutting part; 3. Second punch; 31. First arc-shaped cutting edge protrusion; 4. Second die base; 5. First limiting part; 51. Second arc-shaped cutting edge protrusion; 6. Second limiting part; 7. Third limiting part; 8. Unloading part; 9. Third connecting part; 10. Positioning part; 11. Fourth limiting part; 12. Guide assembly; 121. Guide sleeve; 122. Guide post; 13. Die shank; 14. Fixing plate; 15. Pad; 16. Connecting part; 200. Workpiece; Z, First direction; X, Second direction; Y, Third direction.

[0022] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0023] The following description will be given with reference to the accompanying drawings for a more complete description of the present application. The drawings illustrate exemplary embodiments of the present application. However, the present application may be implemented in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals denote the same or similar components. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the present application. As used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context clearly indicates otherwise. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but without excluding the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless explicitly defined herein, terms such as those defined in a general dictionary should be interpreted as having the same meaning as they have in the relevant technology and in the content of this application, and should not be interpreted as having an idealized or overly formal meaning.

[0024] like Figures 1 to 3 As shown, this application provides a corner-cutting mold 100, which includes a first mold base 1, a first punch 2, and a second punch 3.

[0025] For ease of reading, this application introduces the terms first direction Z, second direction X, and third direction Y to describe the embodiments of this application. The first direction Z, second direction X, and third direction Y can be three non-parallel straight lines in space; further, the first direction Z, second direction X, and third direction Y can be three mutually perpendicular directions in a three-dimensional coordinate system (a three-dimensional Cartesian coordinate system). In subsequent embodiments, the first direction Z is described as the Z-axis direction of the three-dimensional coordinate system, the second direction X as the X-axis direction of the three-dimensional coordinate system, and the third direction Y as the Y-axis direction of the three-dimensional coordinate system.

[0026] The first punch 2 includes a punch connecting part 21 and a punch processing part 22. The punch connecting part 21 is connected to the first mold base 1, and the punch processing part 22 is detachably connected to the punch connecting part 21. The punch processing part 22 is configured to cut a corner on the workpiece 200. The first punch 2 can move with the first mold base 1 along the first direction Z. The second punch 3 is located on one side of the first punch 2 in the second direction X, and the workpiece 200 can be placed on the second punch 3.

[0027] It should be noted that, compared to a punch with an integrated structure, this application divides the punch into two separate parts: a punch connecting part 21 and a punch processing part 22, and connects the two parts detachably. This allows for the replacement of only the punch processing part 22 without replacing the entire punch, and eliminates the need for frequent disassembly and assembly of the punch connecting part 21 and the connected machine tool or other devices. This not only reduces processing costs but also improves disassembly and assembly efficiency.

[0028] In this embodiment, the first mold base 1 is an upper mold base. The corner-cutting mold 100 also includes a mold shank 13, a fixing plate 14, and a pad 15. The mold shank 13 is connected to the first mold base 1 along the first direction Z. The pad 15 and the fixing plate 14 are sequentially arranged below the first mold base 1. The first punch 2 is connected to the bottom of the mold shank 13 and can pass through the pad 15 and the fixing plate 14. The first mold base 1 can move along the first direction Z under the action of external force, and drive the first punch 2 connected to it to move along the first direction Z, so as to process the workpiece 200.

[0029] The workpiece 200 can specifically be a flange with a thickness of 8mm-10mm. It is understood that in other embodiments, the workpiece 200 can also be other objects requiring chamfering of their edges and corners. The thickness of the workpiece 200 is not specifically limited in this application; the corresponding first punch 2 or punch press can be selected based on the different thicknesses of the workpiece 200. The workpiece 200 needs to be machined with four outer rounded corners; therefore, the punch processing section 22 can have several arc-shaped cutting edge sections. These arc-shaped cutting edge sections can specifically be blades or other components capable of machining the workpiece 200 to machine rounded corners. The punch connecting section 21 can be a block-shaped object. Since the punch processing part 22 is detachably connected to the punch connecting part 21, when it is necessary to use the new arc-shaped cutting edge working section in the punch processing part 22 to process the workpiece 200, it is only necessary to disassemble the connection between the punch processing part 22 and the punch connecting part 21, rotate the punch processing part 22 relative to the punch connecting part 21 so that the new arc-shaped cutting edge working section in the punch processing part 22 is aligned with the workpiece 200, and then connect the punch processing part 22 to the punch connecting part 21. The replacement is convenient and quick.

[0030] The corner-cutting die 100 also includes a second die base 4, which is spaced apart from the first die base 1 along the first direction Z. The second die base 4 is a lower die base, and the second punch 3 is connected to the second die base 4. The workpiece 200 can be placed on the second punch 3 and processed. The second punch 3 is cylindrical in shape, and on the side of it near the punch processing section 22 in the second direction X, there is a first arc-shaped cutting edge protrusion 31 that cooperates with the arc-shaped cutting edge working section of the punch processing section 22, so that when the workpiece 200 is placed on the second punch 3, the punch processing section 22 can process a rounded corner on the workpiece 200.

[0031] It is understandable that the punch processing section 22 can cut corners on the workpiece 200, and the punch processing section 22 is detachably connected to the punch connecting section 21. Therefore, different punch processing sections 22 can be connected to the punch connecting section 21 according to different workpieces 200, and can be driven by the first die holder 1 to move along the first direction Z for subsequent corner cutting. Replacement is convenient and quick, and processing efficiency can be improved. Moreover, when the punch processing section 22 is not fixedly connected to the punch connecting section 21, it can rotate relative to the punch connecting section 21 to adjust the processing surface of the punch processing section 22, that is, adjust the arc cutting edge working section of the punch processing section 22, so that the punch processing section 22 can better process the workpiece 200. Using the corner cutting die 100 for processing does not cause additional pollution to the environment compared to casting processing, and is more environmentally friendly.

[0032] Further integration Figure 4 and Figure 5 As shown, in one embodiment, the corner cutting mold 100 further includes a connector 16. The punch connecting part 21 has a first connecting hole 211 and the punch processing part 22 has a second connecting hole 2212. The connector 16 can pass through the first connecting hole 211 and the second connecting hole 2212 to connect the punch connecting part 21 and the punch processing part 22.

[0033] In this embodiment, the connector 16 can be a screw, or other components, as long as they can connect the punch processing part 22 and the punch connecting part 21. No further restrictions are imposed here. The first connecting hole 211 communicates with the second connecting hole 2212 so that the connector 16 can pass through the first connecting hole 211 and the second connecting hole 2212 and connect the punch connecting part 21 and the connector 16.

[0034] It is understandable that by using the connector 16 in conjunction with the first connecting hole 211 and the second connecting hole 2212, the connection and disassembly between the punch connecting part 21 and the punch processing part 22 are relatively simple and convenient, making it easier for personnel to replace or rotate the punch processing part 22, thereby improving processing efficiency.

[0035] In one embodiment, the punch processing part 22 is provided with a protrusion 2211, the punch connecting part 21 is provided with a groove 212, the protrusion 2211 can be located at least partially in the groove 212, the second connecting hole 2212 is provided on the protrusion 2211, and the first connecting hole 211 communicates with the groove 212.

[0036] In this embodiment, the punch processing base 221 is connected with several arc-shaped cutting edge working sections to process the workpiece 200. The protrusions 2211 on the punch processing base 221 can be accommodated by the grooves 212 on the punch connecting part 21, facilitating connection between the punch processing base 221 and the punch connecting part 21. The protrusions 2211 are evenly provided with several second connecting holes 2212 circumferentially, and the punch connecting part 21 is provided with several first connecting holes 211 corresponding to the second connecting holes 2212 circumferentially, with several connecting members 16 also correspondingly provided. In one embodiment, eight second connecting holes 2212, eight first connecting holes 211, and eight connecting members 16 are provided, with each first connecting hole 211 communicating with any one of the second connecting holes 2212. When the protrusion 2211 is located in the groove 212, since the first connecting hole 211 communicates with the groove 212, each second connecting hole 2212 opened on the protrusion 2211 can communicate with a first connecting hole 211 at this time, so that a connector 16 can pass through the corresponding first connecting hole 211 and second connecting hole 2212 and connect the punch connecting part 21 with the punch processing base 221.

[0037] It is understandable that the protrusion 2211 on the punch processing base 221 and the groove 212 on the punch connecting part 21 cooperate to facilitate the positioning and connection of the punch processing part 22 and the punch connecting part 21. In use, the punch processing part 22 is rotated to rotate the unused arc-shaped cutting edge working section to the side closer to the second punch part 3. At this time, each second connecting hole 2212 can communicate with a first connecting hole 211, and the connector 16 is passed through the first connecting hole 211 and the second connecting hole 2212, thereby fixing the protrusion 2211 to the punch connecting part 21 and improving the utilization efficiency of the punch processing part 22.

[0038] In one embodiment, the protrusion 2211 is at least partially rotatably disposed within the groove 212, and the protrusion 2211 is provided with a plurality of second connecting holes 2212.

[0039] It is understandable that the protrusion 2211 is rotatably disposed within the groove 212, allowing the punch processing section 22 to rotate relative to the punch connecting section 21. This facilitates adjustment of the punch processing section 22 for efficient processing. Simultaneously, the multiple second connecting holes 2212 provided in the protrusion 2211 ensure a secure connection between the punch processing section 22 and the punch connecting section 21 after rotation, preventing the punch processing section 22 from moving arbitrarily during use.

[0040] In one embodiment, the punch processing section 22 further includes a punch processing base 221 and a plurality of punching portions 222, wherein the punching portions 222 are integrally formed or detachably connected to the punch processing base 221.

[0041] In this embodiment, the punching portion 222 can be a split blade, and each punching portion 222 can have a circular arc cutting edge working section. Specifically, there can be four punching portions 222, which are detachably connected to the periphery of the punch processing base 221. The detachable connection between the punching portion 222 and the punch processing base 221 can be a threaded connection, a snap-fit ​​connection, or other feasible detachable connection methods, without further limitations.

[0042] It is understandable that by detachably connecting the punch portion 222 to the punch processing base 221, when the punch portion 222 needs to be replaced, there is no need to replace the punch processing base 221; only the punch portion 222 needs to be replaced. This improves replacement efficiency and the utilization efficiency of the first punch part 2, thereby further improving processing efficiency.

[0043] In other embodiments, the punching portion 222 is integrally formed with the punch processing base portion 221, making it more convenient to process the punch processing portion 22.

[0044] In one embodiment, the corner cutting die 100 further includes a first limiting member 5, which is connected to the second die base 4. The first limiting member 5 is located on the side of the first punch 2 away from the second punch 3 in the second direction X. The first limiting member 5 can abut against the first punch 2 in the second direction X to limit the displacement of the first punch 2 in the second direction X.

[0045] In this embodiment, along the second direction X, the first limiting member 5 and the second punch member 3 are respectively located on both sides of the first punch member 2. The first limiting member 5 can be connected to the second base by bolts, or it can be connected to the second base by other means, without further restrictions. The first limiting member 5 can be a block-shaped object, which can be provided with a second arc-shaped cutting edge protrusion 51 corresponding to the arc-shaped cutting edge working section of the first punch member 2. The second arc-shaped cutting edge protrusion 51 can fit against the arc-shaped cutting edge working section of the first punch member 2, so that when the first punch member 2 moves along the first direction Z and performs stamping, the first limiting member 5 can abut against the stamping assembly in the second direction X and limit the displacement of the stamping assembly in the second direction X.

[0046] Understandably, the setting of the first limiting member 5 restricts the displacement of the first punch member 2 in the second direction X during operation, which makes the first punch member 2 more stable and the processing effect better during the processing of the workpiece 200.

[0047] Further integration Figure 6As shown, in one embodiment, the corner cutting mold 100 further includes a second limiting member 6, which is connected to the second mold base 4. The second limiting member 6 is located on the side of the second punch 3 away from the first punch 2 in the second direction X. The second limiting member 6 can abut against the second punch 3 in the second direction X to limit the displacement of the second punch 3 in the second direction X.

[0048] In this embodiment, along the second direction X, the second limiting member 6 and the first punch member 2 can be located on both sides of the second punch member 3. The second limiting member 6 can be connected to the second base by bolts, or it can be connected to the second base by other means, without further restrictions. The second limiting member 6 can be a block-shaped object, which can be provided with an arc-shaped contact surface corresponding to the outer periphery of the second punch member 3, so that the outer surface of the second punch member 3 can fit with the arc-shaped contact surface of the second limiting member 6. The second limiting member 6 can better support the second punch member 3 and limit the displacement of the second punch member 3 in the second direction X.

[0049] Understandably, the second limiting member 6 is designed to match the shape of the second punch member 3, thus effectively limiting the displacement of the second punch member 3 in the second direction X. This prevents the second punch member 3 from shifting arbitrarily during the processing of the workpiece 200, resulting in a more stable processing process and better processing results.

[0050] In one embodiment, the corner cutting mold 100 further includes a third limiting member 7, which is connected to the second mold base 4. The third limiting member 7 is located on the side of the second limiting member 6 away from the second punch member 3 in the second direction X. The third limiting member 7 can abut against the second limiting member 6 in the second direction X to limit the displacement of the second limiting member 6 in the second direction X.

[0051] In this embodiment, along the second direction X, the third limiting member 7 and the second punch member 3 can be located on both sides of the second limiting member 6. The third limiting member 7 can be connected to the second base by bolts, or it can be connected to the second base by other means, without further restrictions. The third limiting member 7 can be a block-shaped object, which can be provided with a V-shaped contact surface corresponding to the outer periphery of the second limiting member 6, so that the outer surface of the second limiting member 6 can fit against the V-shaped contact surface of the third limiting member 7, and the third limiting member 7 can better abut against the second limiting member 6 and limit the displacement of the second limiting member 6 in the second direction X. The second punch member 3, the second limiting member 6, and the third limiting member 7 are flush in height in the first direction Z.

[0052] Understandably, the setting of the third limiting member 7 restricts the displacement of the second limiting member 6 in the second direction X, further improving the stability during processing and resulting in better processing effect.

[0053] In one embodiment, the corner cutting die 100 further includes an unloading member 8, a third connecting member 9, and a positioning member 10. The unloading member 8 is connected to the second punch member 3 through the third connecting member 9. The workpiece 200 is located between the unloading member 8 and the second punch member 3. The positioning member 10 is connected to the unloading member 8 and abuts against the workpiece 200 in the first direction Z to limit the displacement of the workpiece 200 in the first direction Z.

[0054] In this embodiment, the unloading component 8 can be a plate, and the third connecting component 9 can be a screw or other components, as long as it enables the unloading component 8 to connect with the second punch component 3. No further restrictions are imposed. Along the first direction Z, the unloading component 8 and the second punch component 3 are spaced apart, and the workpiece 200 can be located between the unloading component 8 and the second punch component 3. The positioning component 10 can be a screw and can abut against the surface of the workpiece 200 in the first direction Z to further limit the position of the workpiece 200.

[0055] It is understandable that by setting the unloading component 8 and the positioning component 10, the workpiece 200 is further limited, so that the workpiece 200 will not move arbitrarily during the processing, thereby improving the processing reliability of the workpiece 200.

[0056] In one embodiment, the corner cutting mold 100 further includes a fourth limiting member 11, which is connected to the second mold base 4. The fourth limiting member 11 is located on both sides of the unloading member 8 in the third direction Y, and the workpiece 200 can be held against the fourth limiting member 11.

[0057] In this embodiment, the fourth limiting member 11 can be a fixing block, and its height in the first direction Z can be flush with the unloading member 8. Two fourth limiting members 11 are provided. The fourth limiting member 11 can be connected to the second base by bolts, or it can be connected to the second base by other means, without much restriction here. The fourth limiting members 11 can be set along the two oblique sides of the unloading member 8 in the third direction Y according to the placement shape of the unloading member 8. The unloading member 8 corresponds to the workpiece 200 during processing. It is placed at an angle, and its side surface parallel to the second direction X and the third direction Y is not parallel to the second direction X or the third direction Y. Therefore, when the fourth limiting members 11 are located on both sides of the unloading member 8 in the third direction Y, in order to be close to the side of the unloading member 8, the placement of the fourth limiting members 11 is not parallel to the second direction X or the third direction Y. The two fourth limiting members 11 are set close to the two sides of the unloading member 8 in the second direction X near the first punch member 2 to form a figure-eight shape. When the workpiece 200 is placed on the second punch 3, its two sides near the first punch 2 in the second direction X can respectively abut against the two fourth limiting members 11 so that the displacement is restricted by the fourth limiting members 11.

[0058] Understandably, the fourth limiting member 11 further restricts the displacement of the workpiece 200, ensuring its stability during processing. Furthermore, the two fourth limiting members 11 cooperate with the positioning member 10, restricting the workpiece 200's displacement in the first direction Z, the second direction X, and the third direction Y when it is positioned on the second punch member 3, thus preventing the workpiece 200 from moving arbitrarily during processing.

[0059] In one embodiment, the corner-cutting mold 100 further includes a guide assembly 12, which includes a guide sleeve 121 and a guide post 122. The guide post 122 is connected to the second mold base 4, and the guide sleeve 121 is connected to the first mold base 1. The guide sleeve 121 is movably connected to the guide post 122 and can move relative to the guide post 122 in the first direction Z.

[0060] In this embodiment, the guide sleeve 121 is sleeved outside the guide post 122 so that the guide sleeve 121 can move along the guide post 122, and at the same time the guide sleeve 121 moves along the first direction Z.

[0061] Understandably, the guide component 12 can guide the displacement of the first mold base 1 in the first direction Z, making the first mold base 1 work more stably and reliably, and improving the processing quality.

[0062] The specific embodiments of this application have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that various changes and substitutions can be made to the specific embodiments of this application without departing from the spirit and scope of this application. All such changes and substitutions fall within the scope defined by this application.

Claims

1. A corner-cutting die for processing workpieces, characterized in that, The corner-cutting mold includes: First mold base; The first punch component includes a punch connecting part and a punch processing part. The punch connecting part is connected to the first mold base, and the punch processing part is detachably connected to the punch connecting part. The punch processing part is configured to cut corners on the workpiece. The first punch component can move along the first mold base in a first direction. The second punch is located on one side of the first punch in the second direction, and the workpiece can be placed on the second punch. The second direction intersects the first direction.

2. The corner-cutting mold as described in claim 1, characterized in that, The corner-cutting die also includes a connector. The punch connecting part has a first connecting hole, and the punch processing part has a second connecting hole. The connector can pass through the first connecting hole and the second connecting hole to connect the punch connecting part and the punch processing part.

3. The corner-cutting mold as described in claim 2, characterized in that, The punch processing part is provided with a protrusion, and the punch connecting part is provided with a groove. At least part of the protrusion can be located in the groove. The second connecting hole is opened on the protrusion, and the first connecting hole communicates with the groove.

4. The corner-cutting mold as described in claim 3, characterized in that, The punch processing section includes a punch processing base and multiple punch corners, wherein the punch corners are integrally formed on or detachably connected to the punch processing base.

5. The corner-cutting mold as described in claim 3, characterized in that, The protrusion is at least partially rotatably disposed within the groove, and the protrusion is provided with a plurality of second connecting holes.

6. The corner-cutting mold as described in claim 1, characterized in that, The corner-cutting mold further includes a second mold base and a first limiting member. The second punch is connected to the second mold base, and the first limiting member is connected to the second mold base. The first limiting member is located on the side of the first punch away from the second punch in the second direction. The first limiting member can abut against the first punch in the second direction to limit the displacement of the first punch in the second direction.

7. The corner-cutting mold as described in claim 6, characterized in that, The corner-cutting die further includes a second limiting member, which is connected to the second die base. The second limiting member is located on the side of the second punch that is away from the first punch in the second direction. The second limiting member can abut against the second punch in the second direction to limit the displacement of the second punch in the second direction.

8. The corner-cutting mold as described in claim 7, characterized in that, The corner-cutting die also includes a third limiting member, which is connected to the second die base. The third limiting member is located on the side of the second limiting member away from the second punch in the second direction. The third limiting member can abut against the second limiting member in the second direction to limit the displacement of the second limiting member in the second direction.

9. The corner-cutting mold as described in claim 6, characterized in that, The corner-cutting die further includes an unloading component, a third connecting component, and a positioning component. The unloading component is connected to the second punch component via the third connecting component. The workpiece is located between the unloading component and the second punch component. The positioning component is connected to the unloading component and abuts against the workpiece in the first direction to limit the displacement of the workpiece in the first direction.

10. The corner-cutting mold as described in claim 9, characterized in that, The corner-cutting mold further includes a fourth limiting member, which is connected to the second mold base. The fourth limiting member is located on both sides of the unloading member in the third direction. The workpiece can be held against the fourth limiting member. The third direction, the second direction, and the first direction intersect each other.

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