CN211191670U - Hole flanging and flanging device for special-shaped flange - Google Patents

Hole flanging and flanging device for special-shaped flange Download PDF

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Publication number
CN211191670U
CN211191670U CN201922071992.8U CN201922071992U CN211191670U CN 211191670 U CN211191670 U CN 211191670U CN 201922071992 U CN201922071992 U CN 201922071992U CN 211191670 U CN211191670 U CN 211191670U
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CN
China
Prior art keywords
plate
flanging
die
hole
positioning
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Expired - Fee Related
Application number
CN201922071992.8U
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Chinese (zh)
Inventor
马中健
郑康
叶森林
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Pinghu Aichiwei Auto Parts Co Ltd
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Pinghu Aichiwei Auto Parts Co Ltd
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Filing date
Publication date
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Priority to CN201922071992.8U priority Critical patent/CN211191670U/en
Application granted granted Critical
Publication of CN211191670U publication Critical patent/CN211191670U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a hole flanging device for special-shaped flange, it can be to one step of realization of hole flanging, as long as one set of mould, reduce cost, the product of producing is the uniform quality also. A hole flanging device for a special-shaped flange comprises an upper die base and a lower die base, wherein a guide sleeve is arranged on the upper die base, a guide pillar corresponding to the guide sleeve is arranged on the lower die base, a discharging bolt penetrates through and is fixed on the upper die base, an upper base plate is arranged on the lower surface of the upper die base, the middle part of the discharging bolt penetrates through the upper base plate, the upper base plate can move along the discharging bolt, and a guide pin penetrates through and is fixed on the upper base plate; the lower surface of the upper backing plate is provided with a stripper plate, the stripper plate is fixedly connected with the bottom of the discharging bolt in a threaded manner, and the stripper plate is provided with a positioning hole; a positioning plate is arranged in the positioning hole; the lower surface of the die holder is fixed with a lower supporting plate, a nitrogen spring is arranged in the lower supporting plate, the head of the nitrogen spring is provided with an ejector rod, the head of the ejector rod is provided with a positioning block, and the nitrogen spring penetrates through the lower die holder.

Description

Hole flanging and flanging device for special-shaped flange
Technical Field
The utility model belongs to the technical field of the mould, specifically speaking relates to a hole flanging device for special-shaped flange.
Background
The stamping die is a special process equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in cold stamping processing, and is called a cold stamping die (commonly called a cold stamping die). Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part.
Flanging refers to a method for forming a straight wall or a flange with a certain angle along a closed or unclosed curve edge on a plane part or a curved part of a blank by using the action of a die. The flanging is a forming method for flanging the material into a side standing flange along the periphery of the inner hole.
As shown in fig. 1 and 2, the conventional special-shaped flange needs to be subjected to hole flanging and flanging operations on a workpiece, and the conventional special-shaped flange is subjected to internal hole flanging operations on the workpiece firstly, so that the processing is more convenient from inside to outside, the flange is not easy to damage, the hole flanging is finished, and the flanging operation is performed; the hole is turned firstly and then the convenience is achieved through step-by-step operation, and the defects exist: 1. two sets of dies are required to be prepared, the cost is increased, two steps of operation are carried out, the process is complex, and the rapid and efficient production is not facilitated; 2. the distribution operation from inside to outside causes the precision to be reduced, the product is easy to be damaged in the production process, and the product standardization and unification are not facilitated.
Disclosure of Invention
The utility model aims at providing a hole flanging device for special-shaped flange, it can be to one step of realization of hole flanging, as long as one set of mould, reduce cost, the product of producing is the uniform quality also.
In order to solve the technical problem, the purpose of the utility model is to realize like this:
a hole flanging device for a special-shaped flange comprises an upper die base and a lower die base, wherein a guide sleeve is arranged on the upper die base, a guide pillar corresponding to the guide sleeve is arranged on the lower die base, a discharging bolt penetrates through and is fixed on the upper die base, an upper base plate is arranged on the lower surface of the upper die base, the middle part of the discharging bolt penetrates through the upper base plate, the upper base plate can move along the discharging bolt, and a guide pin penetrates through and is fixed on the upper base plate; the lower surface of the upper backing plate is provided with a stripper plate, the stripper plate is fixedly connected with the bottom of the discharging bolt in a threaded manner, and the stripper plate is provided with a positioning hole; a positioning plate is arranged in the positioning hole, the positioning plate is fixedly connected with the upper backing plate, the inner wall of the positioning hole is matched with the outer surface of the positioning plate, and the outer surface of the positioning plate is the same as the flanging shape of the special-shaped flange; the positioning plate is provided with four female die holes, the inner wall of the top of each female die hole protrudes to form an annular first step, the positioning plate is also provided with a first pin hole, and the guide pin penetrates through the first pin hole; a concave module is arranged in the concave die hole, the outer wall of the top of the concave module protrudes to form an annular second step, the concave module is sleeved in the concave die hole, and the first step is overlapped on the second step to form fixation; the bottom surface of the concave module is sunken to form a first concave pit, and a space is reserved between the bottom surface of the concave module and the bottom surface of the positioning plate; a lower supporting plate is fixed on the lower surface of the lower die base, a nitrogen spring is arranged in the lower supporting plate, an ejector rod is arranged at the head of the nitrogen spring, a positioning block is arranged at the head of the ejector rod, and the nitrogen spring penetrates through the lower die base; the upper surface of the lower die base is provided with a lower cushion plate, the ejector rod penetrates through the lower cushion plate, four convex die columns are fixed on the upper surface of the lower cushion plate, and the convex die columns are matched with the concave die holes; the upper surface of the lower base plate is provided with a lower clamping plate, the ejector rod is arranged in the lower clamping plate, and the male mold column penetrates through the lower clamping plate; the upper surface of the lower clamping plate is provided with a flanging plate, a concave flanging pit is arranged in the middle of the flanging plate, a stripping hole is formed in the middle of the bottom of the flanging pit, an inner stripping plate is arranged in the stripping hole, the upper surface of the inner stripping plate is higher than the bottom surface of the flanging pit, and the inner stripping plate and the flanging pit surround to form an annular female die mounting groove; the male die and the positioning block column penetrate through the inner stripper plate, the top of the male die column is used for being inserted into a first pit of the female die block, the male die column is used for realizing hole flanging, and the positioning block is used for being pressed on the special-shaped flange to maintain the shape; a second pin hole is formed in the inner stripping plate, and the guide pin penetrates through the special-shaped flange and then is inserted into the second pin hole to form positioning; the inner stripper plate is pressed against the top of the ejector rod, and stripping of the special-shaped flange is practical; a female die assembly is fixed in the female die mounting groove and comprises two first female die inserts which are symmetrically arranged and two second female die inserts which are symmetrically arranged, the two first female die inserts and the two second female die inserts are alternately fixed in the female die mounting groove, the inner wall of the female die assembly is matched with the outer surface of the positioning plate, and the female die assembly is used for realizing flanging; the punch plate assembly is arranged on the upper surface of the female die assembly and comprises two first punch plates symmetrically arranged and two second punch plates symmetrically arranged, the first punch plates are attached to the first female die insert, and the second punch plates are attached to the second female die insert.
On the basis of the above scheme and as a preferable scheme of the scheme: the head of the discharging bolt is embedded into the upper die base to be fixed, and the head of the guide pin is embedded into the upper base plate to be fixed.
On the basis of the above scheme and as a preferable scheme of the scheme: the positioning plate is fixedly connected with the upper backing plate through screws.
On the basis of the above scheme and as a preferable scheme of the scheme: the lower supporting plate and the lower die base are fixed through screws; the bottom of the nitrogen spring is fixed with the lower supporting plate through screws, the ejector rod is pressed against the top of the nitrogen spring, and the ejector rod is connected with the positioning block through a through screw.
On the basis of the above scheme and as a preferable scheme of the scheme: the lower base plate and the upper die base are fixed through screws; the convex die column and the backing plate are fixed through screws.
On the basis of the above scheme and as a preferable scheme of the scheme: the lower clamping plate and the lower backing plate are fixed through screws.
On the basis of the above scheme and as a preferable scheme of the scheme: the female die assembly and the flanging pit are fixed through screws.
On the basis of the above scheme and as a preferable scheme of the scheme: the punch assembly and the die assembly are fixed through screws.
Compared with the prior art, the utility model outstanding and profitable technological effect is:
the hole flanging and flanging device for the special-shaped flange of the utility model realizes the space flanging treatment by arranging the flanging plate on the lower die base to be matched with the positioning plate on the upper die base; an inner stripping plate is arranged in the flanging plate, a male die column penetrates through the inner stripping plate, and the male die column is matched with a female die block in the positioning plate to realize hole flanging; one set of device has realized turn-ups and hole flanging simultaneously and has handled, has practiced thrift the cost, and it is more convenient to operate to the quality has reached unity, and production efficiency improves.
Drawings
FIG. 1 is a schematic structural diagram of a special-shaped flange before hole flanging and flanging.
Fig. 2 is a structural schematic diagram of the special-shaped flange after hole flanging and flanging.
Fig. 3 is a schematic diagram of a partial explosion structure of the present invention.
Fig. 4 is a partial structural schematic diagram of the present invention.
Fig. 5 is a schematic structural view of the positioning plate of the present invention.
Fig. 6 is a partial schematic structural diagram of the present invention.
Fig. 7 is a schematic diagram of a partial explosion structure of the present invention.
Fig. 8 is a schematic view of the overall structure of the present invention.
Fig. 9 is a schematic overall sectional structure of the present invention.
Reference numerals: the die comprises an upper die base 01, a guide sleeve 010, a discharging bolt 011, an upper base plate 03, a guide pin 030, a stripper plate 04, a positioning hole 040, a positioning plate 05, a die hole 050, a first step 0500, a first pin hole 051, a die block 06, a second step 060, a first pit 061, a lower die base 02, a guide pillar 020, a lower supporting plate 07, a nitrogen spring 070, a mandril 071, a positioning block 072, a lower base plate 08, a punch column 080, a lower base plate 09, a flanging plate 10, a flanging pit 100, a stripping hole 1000, an inner stripping plate 11, a second pin hole 110, a die component 12, a first die insert 120, a second die insert 121, a punch plate component 13, a first punch plate 130 and a second punch plate 131;
Detailed Description
The present invention will be further described with reference to the following detailed description;
the embodiment provides a hole flanging and flanging device for a special-shaped flange, which comprises an upper die holder 01 and a lower die holder 02, wherein a guide sleeve 010 is arranged on the upper die holder 01, and a guide pillar 020 corresponding to the guide sleeve 010 is arranged on the lower die holder 02; the guide sleeve 010 on the upper die holder 01 is matched with the guide pillar 020 on the lower die holder 02 to realize the limiting function, so that the die damage caused by excessive pressing of the upper die holder 01 is avoided; the lower surface of the lower die seat 02 is fixed with the foot pad, so that the supporting effect is achieved, the use at different heights is convenient, and the practicability is higher;
the upper die base 01 is fixedly provided with a discharging bolt 011 in a penetrating way, the lower surface of the upper die base 01 is provided with an upper base plate 03, the middle part of the discharging bolt 011 penetrates through the upper base plate 03, the upper base plate 03 can move along the discharging bolt 011, and the upper base plate 03 is fixedly provided with a guide pin 030 in a penetrating way;
the lower surface of the upper backing plate 03 is provided with a stripper plate 04, the stripper plate 04 is fixedly connected with the bottom of the discharging bolt 011 through threads, and the stripper plate 04 is provided with a positioning hole 040;
a positioning plate 05 is arranged in the positioning hole 040, the positioning plate 05 is fixedly connected with the upper backing plate 03, the inner wall of the positioning hole 040 is matched with the outer surface of the positioning plate 05, and the outer surface of the positioning plate 05 is the same as the flanging shape of the special-shaped flange;
four female die holes 050 are formed in the positioning plate 05, the inner wall of the top of each female die hole 050 protrudes to form an annular first step 0500, a first pin hole 051 is further formed in the positioning plate 05, and a guide pin 030 penetrates through the first pin hole 051; the outer surface of the positioning plate is wavy and is matched with the flanging shape of the special-shaped flange;
a female die block 06 is arranged in the female die hole 050, the outer wall of the top of the female die block 06 protrudes to form an annular second step 060, the female die block 06 is sleeved in the female die hole 050, and the first step 0500 is lapped on the second step 060 to form fixation; the bottom surface of the female die block 06 is sunken to form a first pit 061, and a space is reserved between the bottom surface of the female die block 06 and the bottom surface of the positioning plate 05;
during installation, the female die block 06 is sleeved in a female die hole 050 of the positioning plate 05, the guide pin 030 is embedded in the upper backing plate 03, and the discharge bolt 011 is embedded in the upper die holder 01; then the upper backing plate 03 is inserted into the discharging bolt 011, and the stripper plate 04 is in threaded connection with the discharging bolt 011; the locating plate 05 is placed into the locating hole 040, the locating plate 05 is in threaded connection with the upper backing plate 03, the concave module 06 is clamped and fixed by the locating plate 05 and the upper backing plate 03, and the guide pin 030 penetrates through the locating plate 05.
A lower supporting plate 07 is fixed on the lower surface of a lower die holder 02, a nitrogen spring 070 is arranged in the lower supporting plate 07, the nitrogen spring 070 is in the prior art, and details are not repeated here, a top rod 071 is arranged at the head of the nitrogen spring 070, a positioning block 072 is arranged at the head of the top rod 071, the nitrogen spring 070 penetrates through the lower die holder 02, and a hole is formed in the lower die holder 02 for penetrating through;
the upper surface of the lower die holder 02 is provided with a lower backing plate 08, a mandril 071 penetrates through the lower backing plate 08, the upper surface of the lower backing plate 08 is fixed with four convex die columns 080, the convex die columns 080 are matched with the concave die holes 050, and the lower backing plate 08 is provided with a hole for penetrating through;
the upper surface of the lower base plate 08 is provided with a lower clamping plate 09, the ejector rod 071 is arranged in the lower clamping plate 09, the convex mold column 080 penetrates through the lower clamping plate 09, and the lower clamping plate 09 is provided with a hole for penetrating through;
the upper surface of the lower clamping plate 09 is provided with a flanging plate 10, a sunken flanging pit 100 is arranged in the middle of the flanging plate 10, a stripping hole 1000 is formed in the middle of the bottom of the flanging pit 100, an inner stripping plate 11 is arranged in the stripping hole 1000, the upper surface of the inner stripping plate 11 is higher than the bottom surface of the flanging pit 100, and the inner stripping plate 11 and the flanging pit 100 surround to form an annular female die mounting groove; the male die column 080 and the positioning block 072 column penetrate out of the inner stripping plate 11, corresponding holes are formed in the inner stripping plate 11 and used for the male die column 080 to penetrate out, the top of the male die column 080 is used for being inserted into a first pit 061 of the female die block 06, the male die column 080 is used for realizing hole flanging, and the positioning block 072 is used for pressing against the special-shaped flange to maintain the shape; a second pin hole 110 is formed in the inner stripping plate 11, and the guide pin 030 penetrates through the special-shaped flange and then is inserted into the second pin hole 110 to form positioning; the inner stripping plate 11 is pressed against the top of the ejector rod 071, and stripping of the special-shaped flange is practical;
a female die assembly 12 is fixed in the female die mounting groove, the female die assembly 12 comprises two first female die inserts 120 which are symmetrically arranged and two second female die inserts 121 which are symmetrically arranged, the two first female die inserts 120 and the two second female die inserts 121 are alternately fixed in the female die mounting groove, the inner wall of the female die assembly 12 is matched with the outer surface of the positioning plate 05, and the female die assembly 12 is used for realizing flanging;
the punch plate assembly 13 is arranged on the upper surface of the female die assembly 12, the punch plate assembly 13 comprises two first punch plates 130 which are symmetrically arranged and two second punch plates 131 which are symmetrically arranged, the first punch plates 130 are attached to the first female die insert 120, and the second punch plates 131 are attached to the second female die insert 121; the punch head plate assembly 13 can prevent the protruding female die assembly 12 from being continuously punched by the stripper plate 04 to cause damage, and the punch head plate plays an isolation role to prolong the service life.
During installation, the nitrogen spring 070 is embedded into the lower supporting plate 07, the lower supporting plate 07 is fixed on the lower surface of the lower die base 02, the lower backing plate 08 is fixed on the lower die base 02, the ejector rod 071 penetrates through the lower backing plate 08, the male die column 080 is arranged on the lower backing plate 08, the male die column 080 penetrates through the lower clamping plate 09 and is fixed, the flanging plate 10 is fixed on the lower clamping plate 09, the inner stripping plate 11 is arranged in the flanging plate 10, the top of the ejector rod 071 is pressed on the inner stripping plate 11 to achieve the stripping function, the female die assembly 12 is fixed in the female die installation groove of the flanging plate 10, and the punch plate assembly 13 is fixed on the female die assembly 12.
The operation process comprises the following steps: before stamping, the workpiece (fig. 1) is placed on the die assembly 12 and the punch post 080; the upper die holder 01 descends, and the guide pin 030 penetrates through the workpiece and is inserted into the second pin hole 110 of the inner stripper plate 11 to play a role in positioning, so that the workpiece is prevented from displacement and deviation; the positioning plate 05 is contacted with the workpiece and continuously descends, the male die column 080 is inserted into the female die block 06 to realize hole flanging inside the workpiece, the outer wall of the positioning plate 05 and the inner wall of the female die component 12 clamp the edge of the turnover workpiece, and the edge flanging of the edge of the workpiece is realized; the positioning block 072 is pressed at a required position of the workpiece and matched with the groove on the positioning plate 05, so that the workpiece is prevented from deforming and has a specific shape; the upper die holder 01 descends again, the positioning block 072 and the ejector rod 071 descend, the nitrogen spring 070 is compressed, the upper backing plate 03 moves upwards on the discharging bolt 011 at the same time, and the positioning plate 05 moves upwards in the stripper plate 04; after punching is completed, the upper die base 01 moves upwards, the upper backing plate 03 automatically moves downwards, the positioning plate 05 moves downwards, the stripping plate 04 ejects a workpiece, meanwhile, the nitrogen spring 070 extends out, and the workpiece is ejected through the inner stripping plate 11, so that stripping is realized.
Further, the head of the discharging bolt 011 is embedded into the upper die holder 01 to be fixed, and the head of the guide pin 030 is embedded into the upper backing plate 03 to be fixed; the discharging screw and the guide pin 030 are fixed in an embedded mode, so that the operation is convenient;
further, the positioning plate 05 and the upper backing plate 03 are fixedly connected through screws; the positioning plate 05 and the upper backing plate 03 are convenient to disassemble and assemble;
further, the lower supporting plate 07 and the lower die holder 02 are fixed through screws, so that the lower supporting plate and the lower die holder are convenient to disassemble and assemble; the bottom of the nitrogen spring 070 is fixed with the lower supporting plate 07 through screws, the ejector rod 071 is pressed against the top of the nitrogen spring 070, and the ejector rod 071 is connected with the positioning block 072 through a through screw; the screw fixing mode is adopted, so that the disassembly and the assembly are convenient;
further, the lower backing plate 08 and the upper die base 01 are fixed through screws; the convex die column 080 and the base plate are fixed through screws; the disassembly and the assembly are convenient;
further, the lower clamping plate 09 is fixed with the lower backing plate 08 through screws; the lower clamping plate 09 and the lower backing plate 08 can be conveniently disassembled;
further, the female die component 12 and the flanging pit 100 are fixed through screws; the female die component 12 and the flanging pit 100 are convenient to disassemble and assemble;
further, the punch assembly and the die assembly 12 are fixed through screws; the punch assembly and the die assembly 12 are convenient to disassemble and assemble;
in the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like refer to the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, or the orientation or position relationship that one skilled in the art conventionally understands, and are only for convenience of describing the present invention and simplifying the description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a hole flanging device for special-shaped flange, includes upper die base and die holder, is equipped with the guide pin bushing on the upper die base, is equipped with the guide pillar that corresponds with the guide pin bushing on the die holder, its characterized in that:
the upper die base is fixedly provided with a discharging bolt in a penetrating way, the lower surface of the upper die base is provided with an upper base plate, the middle part of the discharging bolt penetrates through the upper base plate, the upper base plate can move along the discharging bolt, and the upper base plate is fixedly provided with a guide pin in a penetrating way;
the lower surface of the upper backing plate is provided with a stripper plate, the stripper plate is fixedly connected with the bottom of the discharging bolt in a threaded manner, and the stripper plate is provided with a positioning hole;
a positioning plate is arranged in the positioning hole, the positioning plate is fixedly connected with the upper backing plate, the inner wall of the positioning hole is matched with the outer surface of the positioning plate, and the outer surface of the positioning plate is the same as the flanging shape of the special-shaped flange;
the positioning plate is provided with four female die holes, the inner wall of the top of each female die hole protrudes to form an annular first step, the positioning plate is also provided with a first pin hole, and the guide pin penetrates through the first pin hole;
a concave module is arranged in the concave die hole, the outer wall of the top of the concave module protrudes to form an annular second step, the concave module is sleeved in the concave die hole, and the first step is overlapped on the second step to form fixation; the bottom surface of the concave module is sunken to form a first concave pit, and a space is reserved between the bottom surface of the concave module and the bottom surface of the positioning plate;
a lower supporting plate is fixed on the lower surface of the lower die base, a nitrogen spring is arranged in the lower supporting plate, an ejector rod is arranged at the head of the nitrogen spring, a positioning block is arranged at the head of the ejector rod, and the nitrogen spring penetrates through the lower die base;
the upper surface of the lower die base is provided with a lower cushion plate, the ejector rod penetrates through the lower cushion plate, four convex die columns are fixed on the upper surface of the lower cushion plate, and the convex die columns are matched with the concave die holes;
the upper surface of the lower base plate is provided with a lower clamping plate, the ejector rod is arranged in the lower clamping plate, and the male mold column penetrates through the lower clamping plate;
the upper surface of the lower clamping plate is provided with a flanging plate, a concave flanging pit is arranged in the middle of the flanging plate, a stripping hole is formed in the middle of the bottom of the flanging pit, an inner stripping plate is arranged in the stripping hole, the upper surface of the inner stripping plate is higher than the bottom surface of the flanging pit, and the inner stripping plate and the flanging pit surround to form an annular female die mounting groove; the male die and the positioning block column penetrate through the inner stripper plate, the top of the male die column is used for being inserted into a first pit of the female die block, the male die column is used for realizing hole flanging, and the positioning block is used for being pressed on the special-shaped flange to maintain the shape; a second pin hole is formed in the inner stripping plate, and the guide pin penetrates through the special-shaped flange and then is inserted into the second pin hole to form positioning; the inner stripper plate is pressed against the top of the ejector rod, and stripping of the special-shaped flange is practical;
a female die assembly is fixed in the female die mounting groove and comprises two first female die inserts which are symmetrically arranged and two second female die inserts which are symmetrically arranged, the two first female die inserts and the two second female die inserts are alternately fixed in the female die mounting groove, the inner wall of the female die assembly is matched with the outer surface of the positioning plate, and the female die assembly is used for realizing flanging;
the punch plate assembly is arranged on the upper surface of the female die assembly and comprises two first punch plates symmetrically arranged and two second punch plates symmetrically arranged, the first punch plates are attached to the first female die insert, and the second punch plates are attached to the second female die insert.
2. The hole flanging and flanging device for the special-shaped flange as claimed in claim 1, characterized in that: the head of the discharging bolt is embedded into the upper die base to be fixed, and the head of the guide pin is embedded into the upper base plate to be fixed.
3. The hole flanging and flanging device for the special-shaped flange as claimed in claim 1, characterized in that: the positioning plate is fixedly connected with the upper backing plate through screws.
4. The hole flanging and flanging device for the special-shaped flange as claimed in claim 1, characterized in that: the lower supporting plate and the lower die base are fixed through screws; the bottom of the nitrogen spring is fixed with the lower supporting plate through screws, the ejector rod is pressed against the top of the nitrogen spring, and the ejector rod is connected with the positioning block through a through screw.
5. The hole flanging and flanging device for the special-shaped flange as claimed in claim 1, characterized in that: the lower base plate and the upper die base are fixed through screws; the convex die column and the backing plate are fixed through screws.
6. The hole flanging and flanging device for the special-shaped flange as claimed in claim 1, characterized in that: the lower clamping plate and the lower backing plate are fixed through screws.
7. The hole flanging and flanging device for the special-shaped flange as claimed in claim 1, characterized in that: the female die assembly and the flanging pit are fixed through screws.
8. The hole flanging and flanging device for the special-shaped flange as claimed in claim 1, characterized in that: the punch assembly and the die assembly are fixed through screws.
CN201922071992.8U 2019-11-26 2019-11-26 Hole flanging and flanging device for special-shaped flange Expired - Fee Related CN211191670U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922071992.8U CN211191670U (en) 2019-11-26 2019-11-26 Hole flanging and flanging device for special-shaped flange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922071992.8U CN211191670U (en) 2019-11-26 2019-11-26 Hole flanging and flanging device for special-shaped flange

Publications (1)

Publication Number Publication Date
CN211191670U true CN211191670U (en) 2020-08-07

Family

ID=71850347

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922071992.8U Expired - Fee Related CN211191670U (en) 2019-11-26 2019-11-26 Hole flanging and flanging device for special-shaped flange

Country Status (1)

Country Link
CN (1) CN211191670U (en)

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Granted publication date: 20200807