Finishing device for end face at corner of part with turnup

Abstract

The utility model relates to an end face trimming device for a corner of a part with a turnup, which comprises a lower die holder, the lower die holder is provided with a part supporting surface, one side edge of the part supporting surface is provided with a lower die cutter group fixed on the lower die holder, and the cutter head of the lower die cutter group is higher than the part supporting surface along the height direction; the upper die base is provided with a part pressing piece matched with the part supporting face, the part pressing piece is used for being arranged on the inner bottom wall of the part in a pressing mode, and the upper die base is provided with a driving mechanism; the sliding cutter block and the part supporting face are located on the two opposite sides of the part pressing piece, and the driving mechanism drives the sliding cutter block to move in the horizontal direction, so that the sliding cutter block moves along the surface of the part pressing piece and is matched with the lower die cutter set to cut off the flanging end face of the part. The tool bit of the lower die tool set is arranged on one side of the part supporting face, so that the sliding tool block moves to the tool bit of the lower die tool set along the surface of the part pressing piece and is matched with the tool bit to cut off the irregular end face of the flanging position of the part.

Description

Technical Field

[0001] The present application relates to the field of stamping dies, and in particular to an end face trimming device at a corner of a flanged part. Background Art

[0002] At present, in the process of stamping some square structures, in order to make the bends at the corners of the square structure more rounded and smooth, it is usually set as an arc corner structure, see Figure 1 As shown, the flanged end surface at the arc corner after stamping of the square structure is usually uneven.

[0003] In the related art, after the parts are flanged, the end faces of the flanges are usually trimmed by manual grinding. However, it is difficult to control the flatness of the flanges at various positions of the manually polished arc corners. Summary of the invention

[0004] The present application provides an end face trimming device for the corners of parts with flanges, which can solve the technical problem in the related art that the square structure is trimmed at the end face of the flange by manual grinding after the parts are flanged, and the flatness of the flanges at various positions at the manually polished arc corners is difficult to control.

[0005] In the first aspect, an embodiment of the present application provides an end face trimming device at the corner of a flanged part, comprising: a lower die base, the lower die base is provided with a part support surface, one side of the part support surface is provided with a lower die knife group fixed to the lower die base, the knife head of the lower die knife group is higher than the part support surface in the height direction; an upper die base, the upper die base is equipped with a part pressing piece that cooperates with the part support surface, the part pressing piece is used to be pressed on the inner bottom wall of the part, and the upper die base is equipped with a driving mechanism; a sliding knife block, the sliding knife block and the part support are located on opposite sides of the part pressing piece, the driving mechanism drives the sliding knife block to move in a horizontal direction, so that the sliding knife block moves along the surface of the part pressing piece, and cooperates with the knife head of the lower die knife group to cut off the flanged end face of the part.

[0006] In combination with the first aspect, in one embodiment, the driving mechanism includes a driving block, which is fixed to the upper die base, and the driving block has a first inclined surface; the sliding knife block has a second inclined surface, and the upper die base drives the driving block to move in a direction close to the lower die base, so that the first inclined surface is pressed against the second inclined surface, driving the sliding knife block to move in a horizontal direction.

[0007] In combination with the first aspect, in one embodiment, the lower die base is further equipped with an elastic recovery member, the elastic recovery member is arranged on a side of the sliding knife block away from the second inclined surface, and the elastic recovery member drives the sliding knife block to reset.

[0008] In combination with the first aspect, in one embodiment, the upper die base is equipped with a first fixing part, the part pressing part is connected to the first fixing part, and the first fixing part drives the part pressing part to move toward or away from the lower die base; the sliding knife block is provided with a through hole, the first fixing part is penetrated through the through hole, and the inner diameter of the through hole is larger than the outer diameter of the first fixing part.

[0009] In combination with the first aspect, in one embodiment, the upper die base is connected to an upper clamping plate, and the upper clamping plate is connected to a side of the upper die base close to the lower die base, and the upper clamping plate is provided with a through groove, and the first fixing member is passed through the through groove, and an anti-slip member is connected to an end of the first fixing member away from the part pressing member, and the diameter of the anti-slip member is larger than the inner diameter of the through groove; the upper die base is provided with a movable groove, and the movable groove is connected to the through groove, and the anti-slip member is accommodated in the movable groove.

[0010] In combination with the first aspect, in one embodiment, the upper clamping plate is also provided with a driving groove, and the driving mechanism is accommodated in the driving groove; the upper die base is also connected to a stripping plate, and the stripping plate is arranged on the side of the upper clamping plate away from the upper die base, and the sliding knife block is accommodated in the through groove of the stripping plate, and the through groove is connected to the driving groove; the upper die base is connected to a contour screw, the contour screw is passed through the upper clamping plate, and the contour screw is fixed to the stripping plate.

[0011] In combination with the first aspect, in one embodiment, the upper clamping plate is further provided with a first accommodating groove, in which an elastic member is installed, the first accommodating groove passes through two opposite side surfaces of the upper clamping plate, and one end of the elastic member is connected to the upper mold base, and the other end passes through the first accommodating groove and adheres to the stripping plate.

[0012] In combination with the first aspect, in one embodiment, the lower die base is connected to a lower mold plate, and the lower mold plate is arranged on a side of the lower die base close to the upper die base, and the lower mold plate is provided with a second accommodating groove with an opening; the lower die base is also connected to a part support, and one side of the part support is provided with the part supporting surface, the part support and the lower die knife assembly are both accommodated in the second accommodating groove, and the part supporting surface is lower than the top surface of the lower mold plate along the height direction.

[0013] In combination with the first aspect, in one embodiment, the lower mold base is provided with a first cavity, the first cavity is communicated with the second receiving groove, and an elastic demolding member is installed in the first cavity, and the elastic demolding member is supported against the part support member.

[0014] In combination with the first aspect, in one embodiment, the lower die base is also connected to a lower pad, which is clamped between the lower die base and the lower mold plate. The lower pad is provided with a through hole, which is connected to the second accommodating groove. A connecting fixing member is slidably installed in the through hole, one end of the connecting fixing member passes through the through hole and is fixed to the part support, and the other end passes through the through hole and is connected to a limiting member, and the diameter of the limiting member is larger than the inner diameter of the through hole.

[0015] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0016] By arranging the cutter head of the lower die knife group which is higher than the part support surface on one side of the part support surface, so that the part pressing piece cooperates with the part support surface to press the part, the driving mechanism can drive the sliding knife block to move along the surface of the part pressing piece to the cutter head of the lower die knife group, and cooperate with the cutter head to cut off the irregular end face of the part at the flange, thereby solving the technical problem in the related technology that the square structure is manually polished to trim the end face of the flange after the part is flanging, and the flatness of the flange at each position of the manually polished arc corner is difficult to control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the side view structure of a part having a square structure;

[0019] Figure 2 A cross-sectional view of a part press provided in an embodiment of the present application when the part press is not pressed onto the part;

[0020] Figure 3 A cross-sectional view of a part press provided in an embodiment of the present application when the part press contacts the part;

[0021] Figure 4 A cross-sectional view of a part press provided in an embodiment of the present application when the part press is abutting against a part;

[0022] Figure 5 A cross-sectional view of a driving block provided in an embodiment of the present application driving a sliding knife block for cutting;

[0023] Figure 6 A cross-sectional view of a part being cut by a sliding knife block provided in an embodiment of the present application.

[0024] In the figure:

[0025] 1. lower die seat; 11. part support; 111. part support surface; 12. lower die knife assembly; 13. first cavity; 14. elastic demoulding member;

[0026] 2. Upper die seat; 21. Part pressing member; 22. Driving mechanism; 221. Driving block; 2211. First inclined surface; 23. Moving groove; 24. Elastic recovery member; 25. First fixing member; 251. Anti-slip member;

[0027] 3. Parts;

[0028] 4. Sliding knife block; 41. Second inclined surface; 42. Perforation;

[0029] 5. upper clamping plate; 51. through slot; 52. driving slot; 53. first receiving slot;

[0030] 6. Stripping plate; 61. Grooving;

[0031] 7. Equal height screws;

[0032] 8. Elastic parts;

[0033] 9. Lower template; 91. Second receiving groove;

[0034] 10. bottom plate; 101. penetration hole;

[0035] 20. Connecting fixture; 201. Limiting fixture. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] An embodiment of the present application provides an end face trimming device for the corners of a flanged part, which can solve the technical problem in the related art that the square structure is trimmed at the end face of the flange by manual grinding after the part is flanged, and the flatness of the flange at each position of the manually polished arc corner is difficult to control.

[0038] See also Figure 1 and Figure 2As shown, an end face trimming device at the corner of a flanged part provided in an embodiment of the present application comprises: a lower die seat 1, the lower die seat 1 is provided with a part support surface 111, one side of the part support surface 111 is provided with a lower die knife group 12 fixed to the lower die seat 1, and the knife head of the lower die knife group 12 is higher than the part support surface 111 in the height direction. It should be understood that the height in the embodiment of the present application refers to Figure 2 The height in the Z direction is indicated in the figure, and preferably, the cutter head is arranged at the top of the lower die knife group 12; the upper die seat 2, the upper die seat 2 is equipped with a part pressing piece 21 that cooperates with the part supporting surface 111, the part pressing piece 21 is used to be pressed on the inner bottom wall of the part 3, and the upper die seat 2 is equipped with a driving mechanism 22; the sliding knife block 4, the sliding knife block 4 and the part supporting surface 111 are located on opposite sides of the part pressing piece 21, and the driving mechanism 22 drives the sliding knife block 4 to move in the horizontal direction, that is, the horizontal direction. Figure 2 In the Y direction marked in the figure, the sliding knife block 4 moves along the surface of the part pressing piece 21 and cooperates with the knife head of the lower die knife group 12 to cut off the flanged end surface of the part 3.

[0039] In the embodiment of the present application, by arranging the blade head of the lower die knife assembly 12 which is higher than the part support surface 111 on one side of the part support surface 111, the flange of the part 3 can be regarded as a straight edge and a corner edge. When the part pressing piece 21 is pressed on the part 3, the part 3 can be in a state of opening facing upward, and preferably, the height of the part pressing piece 21 is set according to the height of the straight edge of the part 3. When the part pressing piece 21 is pressed on the inner bottom wall of the part 3, the top of the part pressing piece 21 is flush with the top of the straight edge of the part 3. After the part pressing piece 21 cooperates with the part support surface 111 to press the part 3, the driving mechanism 22 can drive the sliding knife block 4 to move along the surface of the part pressing piece 21 to the lower die knife assembly 12 The cutter head and cooperate with the cutter head to cut off the irregular end surface of the flange of the part 3. Preferably, the cutter head can extend in the horizontal direction, so that when the sliding knife block 4 moves to the cutter head in the horizontal direction, it can cooperate with the cutter head more smoothly to cut off the flanged end surface of the part 3, and the sliding cutter head can be equipped with a blade cooperating with the cutter head at its bottom end. At this time, the blade can also extend in the horizontal direction. By using the cutter head and the blade to cooperate to cut the end of the flange of the part 3, the technical problem that the square structure in the related art is that after the part 3 is flanging, the end surface of the flange is trimmed by manual grinding, and the flatness of the flange at each position of the manually polished arc corner is difficult to control.

[0040] In some optional embodiments, see Figure 3As shown, the driving mechanism 22 includes a driving block 221, and the driving block 221 is fixed to the upper mold base 2, and the driving block 221 has a first inclined surface 2211; the sliding knife block 4 has a second inclined surface 41, and the upper mold base 2 drives the driving block 221 to move in the direction close to the lower mold base 1, so that the first inclined surface 2211 is pressed on the second inclined surface 41, and the sliding knife block 4 is driven to move in the horizontal direction. That is to say, in the embodiment of the present application, the driving mechanism 22 drives the sliding knife block 4 to move in the horizontal direction by cooperating the first inclined surface 2211 in the driving block 221 with the second inclined surface 41 of the sliding knife block 4, that is, when the driving block 221 moves to the point where the first inclined surface 2211 contacts the second inclined surface 41 under the drive of the upper mold base 2, the driving block 221 starts to push the sliding knife block 4 to move until the first inclined surface 2211 moves to be separated from the second inclined surface 41 and the pushing is stopped.

[0041] In some optional embodiments, the lower die base 1 is also equipped with an elastic recovery member 24, which is arranged on the side of the sliding knife block 4 away from the second inclined surface 41, and the elastic recovery member 24 drives the sliding knife block 4 to reset. At this time, resetting may refer to the sliding knife block 4 moving in the opposite direction to the direction when the driving mechanism 22 drives the sliding knife block 4 to move. The elastic recovery member 24 can drive the sliding knife block 4 to reset after completing the end face cutting of the flanging of the part 3, and the upper die base 2 drives the driving block 221 away from the sliding knife block 4. The elastic recovery member 24 can be a set spring, which can be directly fixed on the lower die base 1, or a mounting seat can be fixed on the lower die base 1, and the mounting seat has an opening on the side facing the sliding knife block 4, one side of the spring is fixed on the inner side of the mounting seat, and the other side is connected to the sliding knife block 4 from the opening. In the embodiment of the present application, the elastic recovery member 24 is provided so that the sliding knife block 4 can quickly return to the position before cutting after completing a cutting, so as to facilitate the next cutting work, and can also reduce the work of manual return, making the operation more convenient.

[0042] In some optional embodiments, the upper die base 2 is equipped with a first fixing member 25, and the part pressing member 21 is connected to the first fixing member 25. The first fixing member 25 drives the part pressing member 21 to move toward or away from the lower die base 1. In the embodiment of the present application, the part pressing member 21 is connected to the upper die base 2 through the first fixing member 25, so that when the upper die base 2 moves, it can synchronously drive the part pressing member 21 and the driving block 221 to move together, saving driving energy; the sliding knife block 4 is provided with a through hole 42, and the first fixing member 25 is penetrated through the through hole 42 The inner diameter of the through hole 42 is larger than the outer diameter of the first fixing member 25. When the part pressing member 21 has not yet been pressed on the inner bottom wall of the part 3, the sliding knife block 4 can be attached to the top surface of the part pressing member 21 under the action of gravity. When the sliding knife block 4 moves under the drive of the driving block 221, under the action of the through hole 42 of the sliding knife block 4, the first fixing member 25 and the sliding knife block 4 can also move relative to each other. At this time, the first fixing member 25 can actually be in a non-moving state. This setting method can enable the first fixing member 25 to have a certain limiting effect on the sliding knife block 4 when the sliding knife block 4 moves.

[0043] In some optional embodiments, the upper die base 2 is connected to an upper clamping plate 5, and the upper clamping plate 5 is connected to the side of the upper die base 2 close to the lower die base 1. The upper clamping plate 5 is provided with a through groove 51, and the first fixing member 25 is passed through the through groove 51. The end of the first fixing member 25 away from the part pressing member 21 is connected to an anti-slipping member 251, and the diameter of the anti-slipping member 251 is greater than the inner diameter of the through groove 51. In the embodiment of the present application, the upper clamping plate 5 is provided to enable the first fixing member 25 to be The fixed member 25 can be slidably installed in the through groove 51 of the upper clamping plate 5. At this time, one end of the first fixed member 25 is prevented from falling out of the upper clamping plate 5 by the part pressing member 21 and the sliding knife block 4 installed thereon, and the other end is prevented from falling out of the upper clamping plate 5 by the anti-falling member 251, so that the first fixed member 25 can always be in the upper clamping plate 5; the upper die seat 2 is provided with a moving groove 23, the moving groove 23 is connected with the through groove 51, and the anti-falling member 251 is accommodated in the moving groove 23. Preferably, there can be a certain gap between the upper clamping plate 5 and the sliding knife block 4. At this time, the driving block 221 is fixed on the upper clamping plate 5. When the part pressing member 21 and the sliding knife block 4 are first pressed on the inner bottom wall of the part 3 under the drive of the upper die seat 2, the upper die seat 2 drives the driving member to continue to move downward, and the anti-falling member 251 moves in the moving groove 23 at this time.

[0044] In some optional embodiments, the upper clamping plate 5 is further provided with a driving groove 52, and the driving mechanism 22 is accommodated in the driving groove 52. In the embodiment of the present application, the driving block 221 is accommodated in the driving groove 52. The driving groove 52 can form a certain restriction on the movement of the driving block 221, so that the moving direction of the driving block 221 can be relatively stable; see Figure 5 As shown, the upper die base 2 is also connected to a stripper plate 6, and the stripper plate 6 is arranged on the side of the upper clamping plate 5 away from the upper die base 2. The sliding knife block 4 is accommodated in the through groove 61 of the stripper plate 6, and the through groove 61 is connected to the driving groove 52. The stripper plate 6 can be arranged to facilitate the sliding knife block 4 to complete the cutting of the end of the flange of the part 3. When the upper die base 2 drives the part pressing part 21 away from the part supporting surface 111, the part 3 can not be driven away from the part supporting surface 111 by the part pressing part 21. At this time, the mounting seat mentioned in the above embodiment can belong to a part of the stripper plate 6. Preferably, the present application is implemented In the example, a stripping pad pressed on the stripping plate 6 can be further provided above the stripping plate 6, and a groove body corresponding to the driving groove 52 is opened in the stripping pad. The stripping pad can also be pressed on the top of the sliding knife block 4 to make the sliding knife block 4 keep a tight fit with the part pressing part 21 as much as possible; the upper die base 2 is connected with a contour screw 7, and the contour screw 7 is passed through the upper clamping plate 5, and the contour screw 7 is fixed to the stripping plate 6. The contour screw 7 is arranged between the upper clamping plate 5 and the stripping plate 6, so that when the upper die base 2 drives the upper clamping plate 5 and the stripping plate 6 to move, the upper clamping plate 5 and the stripping plate 6 have stronger stability.

[0045] See also Figure 4 As shown, in some optional embodiments, the upper clamp 5 is also provided with a first accommodating groove 53, in which an elastic member 8 is installed. The elastic member 8 can also be a spring, or other elastic items. The first accommodating groove 53 runs through the two opposite side surfaces of the upper clamp 5, and one end of the elastic member 8 is connected to the upper die base 2, and the other end passes through the first accommodating groove 53 and fits the stripping plate 6. In the embodiment of the present application, one end of the elastic member 8 is connected to the upper die base 2, and the other end is fitted to the upper stripping plate 6. When the upper die base 2 drives the part pressing member 21 to be pressed against the inner bottom wall of the part 3, as the upper die base 2 continues to move downward, the elastic member 8 can apply a certain pressure to the upper stripping plate 6, effectively preventing the sliding knife block 4 from slipping out of the groove 61.

[0046] In some optional embodiments, the lower die base 1 is connected to a lower die plate 9, and the lower die plate 9 is arranged on a side of the lower die base 1 close to the upper die base 2, and the lower die plate 9 is provided with a second accommodating groove 91 having an opening; the lower die base 1 is also connected to a part support 11, and one side of the part support 11 is provided with the part support surface 111, the part support 11 and the lower die knife assembly 12 are both accommodated in the second accommodating groove 91, and the part support surface 111 is lower than the top surface of the lower die plate 9 in the height direction, see Figure 6 As shown, at this time, the top plate of the lower template 9 and the blade of the lower die knife assembly 12 are both higher than the part support surface 111, then the side of the lower template 9 close to the part support surface 111, the side of the lower die knife assembly 12 close to the part support surface 111 and the part support surface 111 can together form a part 3 placement groove, and the part 3 is placed in the part 3 placement groove. Preferably, each flange of the part 3 is respectively abutted against the inner side wall of the part 3 placement groove to limit the part 3. In this embodiment of the present application, a second accommodating groove 91 is opened in the lower template 9 to limit the part support 11 and the lower die knife assembly 12, and can also form a part 3 placement groove to limit the part 3, thereby enhancing the stability of the cutting process.

[0047] Preferably, the lower die base 1 is provided with a first cavity 13, the first cavity 13 is connected with the second accommodating groove 91, and an elastic demolding member 14 is installed in the first cavity 13, the elastic demolding member 14 is pressed against the part support member 11, preferably, the elastic demolding member 14 can also be a spring or other elastic component, and the elastic demolding member 14 is arranged in the first cavity 13, after the part 3 is cut and the part pressing member 21 is away from the part support surface 111, the part support member 11 can be supported out of the second accommodating groove 91 by the elastic demolding member 14, so as to remove and collect the cut part 3. That is, when the part pressing member 21 is pressed against the part support surface 111, the elastic demolding member 14 is in a compressed state in the first cavity 13.

[0048] In some optional embodiments, the lower mold base 1 is also connected to a lower pad 10, and the lower pad 10 is clamped between the lower mold base 1 and the lower mold plate 9. The lower pad 10 is provided with a through hole 101, and the through hole 101 is connected to the second accommodating groove 91. A connecting fixing member 20 is slidably installed in the through hole 101, and one end of the connecting fixing member 20 passes through the through hole 101 and is fixed to the part support 11, and the other end passes through the through hole 101 and is connected to a limiting member 201. The diameter of the limiting member 201 is larger than the inner diameter of the through hole 101. At this time, there is also a through hole in the lower pad 10 that is connected to the first cavity 13, and the elastic demolding member 14 also passes through the through hole. The lower pad 10 is provided so that when the part support 11 is accommodated in the second accommodating groove 91, the bottom surface of the part support 11 is supported by the lower pad 10, thereby forming a certain protective effect. And the connecting fixing member 20 is slidably installed in the through hole 101. Therefore, by setting the connecting fixing member 20, the part support member 11 can have a certain displacement limit when being ejected, that is, the part support member 11 can be pulled by the connecting fixing member 20 and cannot completely fall out of the second receiving groove 91 while being ejected out of the second receiving groove 91 by the elastic demolding member 14, thereby reducing the risk of the staff having to re-insert the part support member 11 into the second receiving groove 91 due to the part support member 11 falling out of the second receiving groove 91.

[0049] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0050] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0051] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An end surface trimming device at the corner of a flanged part, characterized in that: It includes: A lower die base (1), the lower die base (1) being provided with a part support surface (111), a lower die knife group (12) fixed to the lower die base (1) being provided on one side of the part support surface (111), the knife head of the lower die knife group (12) being higher than the part support surface (111) in height direction; An upper die base (2), the upper die base (2) being provided with a part pressing piece (21) cooperating with the part supporting surface (111), the part pressing piece (21) being used for pressing on the inner bottom wall of the part (3), and the upper die base (2) being provided with a driving mechanism (22); A sliding knife block (4), wherein the sliding knife block (4) and the part support surface (111) are located on opposite sides of the part pressing piece (21), and the driving mechanism (22) drives the sliding knife block (4) to move in a horizontal direction, so that the sliding knife block (4) moves along the surface of the part pressing piece (21) and cooperates with the knife head of the lower die knife assembly (12) to cut off the flanged end surface of the part (3).

2. The end surface trimming device at the corner of a flanged part according to claim 1, characterized in that: The driving mechanism (22) comprises a driving block (221), the driving block (221) is fixed to the upper die base (2), and the driving block (221) has a first inclined surface (2211); The sliding knife block (4) has a second inclined surface (41), and the upper die base (2) drives the driving block (221) to move in a direction close to the lower die base (1), so that the first inclined surface (2211) is pressed against the second inclined surface (41), driving the sliding knife block (4) to move in a horizontal direction.

3. The end surface trimming device at the corner of a flanged part according to claim 2, characterized in that: The lower die base (1) is also equipped with an elastic recovery member (24), which is arranged on a side of the sliding knife block (4) away from the second inclined surface (41), and the elastic recovery member (24) drives the sliding knife block (4) to reset.

4. The end surface trimming device at the corner of a flanged part according to claim 1, characterized in that: The upper die base (2) is provided with a first fixing member (25), the part pressing member (21) is connected to the first fixing member (25), and the first fixing member (25) drives the part pressing member (21) to move in a direction approaching or away from the lower die base (1); The sliding knife block (4) is provided with a through hole (42), the first fixing member (25) is inserted through the through hole (42), and the inner diameter of the through hole (42) is greater than the outer diameter of the first fixing member (25).

5. The end surface trimming device at the corner of a flanged part according to claim 4, characterized in that: The upper die base (2) is connected to an upper clamping plate (5), and the upper clamping plate (5) is connected to a side of the upper die base (2) close to the lower die base (1). The upper clamping plate (5) is provided with a through groove (51), and the first fixing member (25) is inserted into the through groove (51). An end of the first fixing member (25) away from the part pressing member (21) is connected to an anti-slipping member (251), and the diameter of the anti-slipping member (251) is larger than the inner diameter of the through groove (51); The upper die seat (2) is provided with a movable groove (23), the movable groove (23) is communicated with the through groove (51), and the anti-slip component (251) is accommodated in the movable groove (23).

6. The end surface trimming device at the corner of a flanged part according to claim 5, characterized in that: The upper clamping plate (5) is further provided with a driving groove (52), and the driving mechanism (22) is accommodated in the driving groove (52); The upper die seat (2) is also connected to a stripper plate (6), the stripper plate (6) being arranged on a side of the upper clamping plate (5) away from the upper die seat (2), the sliding knife block (4) being accommodated in a through groove (61) of the stripper plate (6), and the through groove (61) being communicated with the driving groove (52); The upper die seat (2) is connected with a height-adjusting screw (7), the height-adjusting screw (7) is passed through the upper clamping plate (5), and the height-adjusting screw (7) is fixed to the stripping plate (6).

7. The end surface trimming device at the corner of a flanged part according to claim 6, characterized in that: The upper clamping plate (5) is also provided with a first accommodating groove (53), in which an elastic member (8) is installed. The first accommodating groove (53) passes through two opposite side surfaces of the upper clamping plate (5), and one end of the elastic member (8) is connected to the upper mold base (2), and the other end passes through the first accommodating groove (53) and is attached to the stripping plate (6).

8. The end surface trimming device at the corner of a flanged part according to claim 1, characterized in that: The lower die base (1) is connected to a lower die plate (9), the lower die plate (9) is arranged on a side of the lower die base (1) close to the upper die base (2), and the lower die plate (9) is provided with a second accommodating groove (91) having an opening; The lower die seat (1) is also connected to a part support (11), one side of the part support (11) is provided with the part support surface (111), the part support (11) and the lower die knife assembly (12) are both accommodated in the second accommodating groove (91), and the part support surface (111) is lower than the top surface of the lower die plate (9) in the height direction.

9. The end surface trimming device at the corner of a flanged part according to claim 8, characterized in that: The lower mold base (1) is provided with a first cavity (13), the first cavity (13) is communicated with the second accommodating groove (91), and an elastic demoulding member (14) is installed in the first cavity (13), and the elastic demoulding member (14) is supported by the part support member (11).

10. The end surface trimming device at the corner of a flanged part according to claim 9, characterized in that: The lower die base (1) is also connected to a lower pad (10), and the lower pad (10) is clamped between the lower die base (1) and the lower mold plate (9). The lower pad (10) is provided with a through hole (101), and the through hole (101) is communicated with the second accommodating groove (91). A connecting fixing member (20) is slidably installed in the through hole (101), and one end of the connecting fixing member (20) passes through the through hole (101) and is fixed to the part support member (11), and the other end passes through the through hole (101) and is connected to a limiting member (201), and the diameter of the limiting member (201) is larger than the inner diameter of the through hole (101).

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