Edge trimming die

Abstract

The utility model discloses an edge trimming die which comprises a lower die, and a lower forming cavity is formed in the top of the lower die. The upper die is located over the lower die, an upper forming cavity with the vertical projection area equal to that of the lower forming cavity is formed in the bottom of the upper die, and in the machining process of a workpiece, extrusion of the internal workpiece is achieved through closing of the lower forming cavity and the upper forming cavity; the upper forming cavity is sleeved with the cutter, and the inner side face of the cutter is seamlessly attached to the outer surface of the upper forming cavity; a mounting groove is formed in the bottom end face of the upper die, and the top of the cutter is arranged in the mounting groove. According to the upper die, the connecting structure of the cutter is adjusted to the upper end face from the bottom end face of a traditional upper die, the space range of installation operation is widened, the installation difficulty is greatly reduced, and operation is more convenient and efficient; in addition, a buffering piece is additionally arranged, and it is guaranteed that the cutter can conduct precise cutting according to expectation.

Description

Technical Field

[0001] This utility model belongs to the field of edge trimming mold technology, and specifically relates to an edge trimming mold. Background Technology

[0002] Edge trimming dies are mainly used to remove the process-added parts and excess portions of the blank holder flange of drawn parts, preparing them for flanging and shaping. They ensure the flatness and precision of the product edges and are an indispensable part of industrial production.

[0003] In the current field of edge-trimming die design, the installation of cutters mainly relies on two traditional methods: welding or bolting. However, both of these methods have certain limitations and shortcomings. Specifically, when using welding to fix the cutter, the high temperature and metal deformation during the welding process can easily lead to deviations in the cutter's installation position, thus affecting its cutting accuracy and effect. While bolting avoids the installation misalignment problem caused by welding to some extent, its operation is relatively complex and difficult. This is mainly because bolting usually requires operation on the bottom surface of the upper die, where space is limited, posing a significant challenge to the workers. More importantly, both welding and bolting are fixed connection methods, lacking necessary flexible buffer structures. This means that during the cutting process, if a large impact force is encountered, the cutter will directly bear these impact forces, making it highly susceptible to damage. This not only increases production costs but also affects production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a sizing mold to solve the problems mentioned in the background art, such as inconvenient installation of the cutting blade and lack of protective effect of the existing sizing mold.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a whole edge mould, including lower mould, top installation has lower forming cavity, upper mould, in the positive upper side of lower mould, the bottom position of upper mould is provided with the upper forming cavity equal to the vertical projection area of lower forming cavity, in the processing of workpiece, through the closure of lower forming cavity, upper forming cavity realizes the extrusion of internal workpiece, cutter, the outside of upper forming cavity is set, the inside surface of cutter is seamlessly matched with the outer surface of upper forming cavity, so after the matching of upper forming cavity and lower forming cavity, the raw material extruded out is cut off by cutter, realizes the effect of whole edge, the bottom end face of upper mould is provided with mounting groove, the top of cutter is placed in the mounting groove, and the top of cutter is fixed with buffer piece, the top of buffer piece penetrates and extends to the top outside of upper mould, locking nut is also set on the buffer piece, the top end face of upper mould is matched with locking nut, and the support installation of buffer piece and cutter is realized through locking nut, in the cutting of cutter, once cutter is in conflict with lower forming cavity due to size deviation, installation position error and the like, the collision degree of cutter and lower forming cavity can be reduced through buffer piece, and the effect of protection is achieved.

[0006] Preferably, the buffer piece includes a stud fixed to the top end of the cutter and penetrating the upper mold, and a buffer spring sleeved on the stud, one end of the buffer spring abuts against the top of the cutter, and the other end abuts against the inner top end face of the mounting groove, so that in the descending of the cutter, the buffer spring provides a space for the movement of the cutter in the mounting groove by compression.

[0007] Preferably, the inside depth of the mounting groove is greater than the height of the cutter, so as to ensure that the cutter can be completely hidden in the cutter, and the diameter of the stud is less than or equal to the thickness of the cutter.

[0008] Preferably, the top of the upper forming cavity is further provided with a guide column penetrating the upper mold, in the processing, the upper forming cavity is first closed with the lower forming cavity, in the continuous descending of the upper mold, the cutter is brought down, so as to cut off the residual workpiece extruded at the connecting position of the upper forming cavity and the lower forming cavity, the top of the guide column is formed with a cylindrical limiting block abutting against the top of the upper mold, so as to avoid the separation of the guide column and the upper mold.

[0009] Preferably, the top end face of the lower mold is further provided with a groove, which is provided around the edge of the lower forming cavity, so as to collect the cut impurities.

[0010] Preferably, the inside of the collecting frame is further provided with a pulling column, the impurities are collected by the collecting frame, and the collecting frame can be conveniently taken out by the pulling column, and the impurities in the inside are treated.

[0011] Preferably, the height of the collecting frame and the pulling column is flush with the top end surface of the lower mold, avoiding protruding and affecting normal processing, and guide columns are installed at the four corners of the lower mold and the upper mold, vertical lifting of the upper mold is realized through the guide columns, wherein the upper mold is connected with external power equipment to realize self-lifting.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] In the utility model, the connecting structure of the cutter is adjusted from the bottom end surface of the traditional upper mold to the top end surface, the space range of installation operation is widened, the installation difficulty is greatly reduced, and the operation is more convenient and efficient; in addition, the added buffer piece not only ensures that the cutter can be accurately cut as expected, but more importantly, it realizes flexible contact in the cutting process, when encountering mispositioning or collision and other unexpected situations, the buffer piece can play a key buffering role, effectively dispersing and absorbing impact force, thereby greatly reducing the damage risk of the cutter; this improvement not only improves the cutting precision and stability of the whole edge mold, but also prolongs the service life of the cutter, reduces the production interruption and cost increase caused by cutter damage, and successfully solves the problems of cutter installation difficulty and vulnerability in the existing whole edge mold. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a structural schematic view of the utility model collecting frame and lower mold in a separated state;

[0016] Figure 3 It is a connecting schematic view of the utility model cutter and buffer piece;

[0017] Figure 4 It is a structural schematic view of the utility model Figure 3 It is an enlarged schematic view of area A of the utility model;

[0018] Figure 5 It is a bottom view of the utility model upper mold.

[0019] In the drawings:

[0020] 100, lower mold; 101, lower forming cavity;

[0021] 200, upper mold; 201, guide column; 202, upper forming cavity; 203, threaded stud; 205, cutter; 206, buffer spring; 207, locking nut; 208, mounting groove;

[0022] 300, collecting frame; 301, pulling column. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0024] Please refer to Figures 1 to 5 The present application provides a technical scheme: a whole edge mold, comprising a lower mold 100, a top portion of which is provided with a lower forming cavity 101;

[0025] An upper mold 200 is located directly above the lower mold 100, and an upper forming cavity 202 with a vertical projection area equal to that of the lower forming cavity 101 is arranged at the bottom position of the upper mold 200. In the processing of a workpiece, the extrusion of the internal workpiece is realized through the closure of the lower forming cavity 101 and the upper forming cavity 202.

[0026] A cutter 205 is sleeved outside the upper forming cavity 202, and the inner side surface of the cutter 205 is seamlessly fitted with the outer surface of the upper forming cavity 202. Therefore, after the upper forming cavity 202 is fitted with the lower forming cavity 101, the raw material extruded out will be cut off by the cutter 205, realizing the effect of whole edge.

[0027] An installation groove 208 is formed on the bottom end surface of the upper mold 200, the top portion of the cutter 205 is arranged in the installation groove 208, and a buffer member is fixedly arranged on the top portion of the cutter 205. The top portion of the buffer member penetrates and extends to the outside of the top portion of the upper mold 200. A locking nut 207 is sleeved on the buffer member, and the locking nut 207 is fitted with the top end surface of the upper mold 200. The buffer member and the cutter 205 are supported and installed through the locking nut 207. In the cutting process of the cutter 205, if the cutter 205 collides with the lower forming cavity 101 due to size deviation, incorrect installation position or the like, the collision degree of the cutter 205 and the lower forming cavity 101 can be reduced through the buffer member, achieving the effect of protection.

[0028] In the embodiment, preferably, the buffer member comprises a stud 203 fixed to the top end of the cutter 205 and penetrating the upper mold 200, and a buffer spring 206 sleeved on the stud 203. One end of the buffer spring 206 abuts against the top portion of the cutter 205, and the other end abuts against the inner top end surface of the installation groove 208. Therefore, in the descending process of the cutter 205, the buffer spring 206 provides a space for the movement of the cutter 205 in the installation groove 208 through compression.

[0029] In the embodiment, preferably, the inner side depth of the installation groove 208 is greater than the height of the cutter 205, so as to ensure that the cutter 205 can be completely hidden in the cutter 205. The diameter of the stud 203 is less than or equal to the thickness of the cutter 205.

[0030] In the embodiment, preferably, the top of the upper cavity 202 is also provided with a guide column 201 penetrating through the upper die 200, and in the processing, the upper cavity 202 is first closed with the lower cavity 101, and in the continuous descending of the upper die 200, the cutter 205 is brought down, so as to cut off the residual workpiece extruded at the connecting area of the upper cavity 202 and the lower cavity 101, and the top of the guide column 201 is provided with a cylindrical limiting block, which abuts against the top of the upper die 200, so as to avoid the separation of the guide column 201 and the upper die 200.

[0031] In the embodiment, preferably, the top end surface of the lower die 100 is also provided with 102, which is arranged around the edge of the lower cavity 101, so as to collect the cut-off impurities.

[0032] In the embodiment, preferably, the inside of the 102 is also provided with a collecting frame 300, and the inside of the collecting frame 300 is fixedly provided with a pulling column 301, the impurities are collected through the collecting frame 300, and the collecting frame 300 can be conveniently taken out through the pulling column 301, and the inside impurities can be treated.

[0033] In the embodiment, preferably, the height of the collecting frame 300 and the pulling column 301 is flush with the top end surface of the lower die 100, so as to avoid the protrusion affecting the normal processing, and the four corners of the lower die 100 and the upper die 200 are also provided with guide columns, the vertical lifting of the upper die 200 is realized through the guide columns, and the upper die 200 is connected with the external power equipment, so as to realize the lifting of the upper die 200.

[0034] Although the embodiments of the utility model have been shown and described (for details, see the above detailed description), it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A trimming die, comprising a lower die (100) having a lower molding cavity (101) mounted on the top thereof; an upper die (200) located directly above the lower die (100), wherein an upper molding cavity (202) equal in vertical projection area to the lower molding cavity (101) is provided at the bottom of the upper die (200); a cutter (205) sleeved outside the upper molding cavity (202), wherein the inner side of the cutter (205) is seamlessly fitted with the outer surface of the upper molding cavity (202); characterized in that: an installation groove (208) is provided on the bottom end surface of the upper die (200), the top of the cutter (205) is located in the installation groove (208), and a buffer is fixedly provided on the top of the cutter (205), the top of the buffer penetrates and extends to the outside of the top of the upper die (200), a locking nut (207) is sleeved on the buffer, and the locking nut (207) is fitted with the top end surface of the upper die (200).

2. An edging die according to claim 1, wherein: The buffer comprises a stud (203) fixed on the top end of the cutter (205) and penetrating the upper die (200), and a buffer spring (206) sleeved on the stud (203), wherein one end of the buffer spring (206) abuts against the top of the cutter (205), and the other end abuts against the inner top end surface of the installation groove (208).

3. An edging die according to claim 2, wherein: The inner side depth of the installation groove (208) is greater than the height of the cutter (205), and the diameter of the stud (203) is less than or equal to the thickness of the cutter (205).

4. An edging die according to claim 1, wherein: A guide column (201) penetrating the upper die (200) is further mounted on the top of the upper molding cavity (202), and a cylindrical limiting block is formed on the top of the guide column (201) and abuts against the top of the upper die (200).

5. An edging die according to claim 1, wherein: An opening (102) is further provided on the top end surface of the lower die (100), and the opening (102) is provided around the edge of the lower molding cavity (101).

6. An edging die according to claim 5, wherein: A collection frame (300) is further placed in the opening (102), and a pulling column (301) is fixedly provided in the collection frame (300).

7. An edging die according to claim 6, wherein: The height of the collection frame (300) and the pulling column (301) is flush with the top end surface of the lower die (100), and guide columns are further mounted at the four corners of the lower die (100) and the upper die (200).

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