CN211515797U - Diaphragm punching die - Google Patents
Diaphragm punching die Download PDFInfo
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- CN211515797U CN211515797U CN201922276855.8U CN201922276855U CN211515797U CN 211515797 U CN211515797 U CN 211515797U CN 201922276855 U CN201922276855 U CN 201922276855U CN 211515797 U CN211515797 U CN 211515797U
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Abstract
The utility model relates to a diaphragm spring blanking mould technical field discloses a diaphragm notching die, including upper die assembly, lower die assembly, central positioning subassembly, elastic positioning subassembly, upper die assembly includes an upper fixed plate, a plurality of blanking heads, and a plurality of blanking heads set up in the upper fixed plate; the lower die assembly comprises a lower die plate and a lower die base, the lower die plate is arranged opposite to the upper fixing plate, a plurality of concave cavities are formed in the lower die plate opposite to the punching head, one end, close to the upper fixing plate, of the lower die plate is inwards sunken to form a first fixing hole, and the circle center of the first fixing hole is located on the symmetry axis of the two adjacent concave cavities; the lower die base is arranged at one end of the lower die plate, which is far away from the upper fixing plate, and is connected to the lower die plate; the central positioning assembly comprises a first positioning column, and the first positioning column is arranged on the lower template and is coaxial with the first circumference; each elastic positioning assembly comprises a second positioning column which can be inserted in the first fixing hole in a sliding mode. The utility model discloses can carry out accurate location to diaphragm spring's secondary punching press.
Description
Technical Field
The utility model relates to a diaphragm spring blanking mould technical field, concretely relates to diaphragm punching die.
Background
Chinese patent application No. 201320059029.8 discloses a punch forming die for a middle hole and a groove of a diaphragm spring, which comprises an upper die holder, a lower die holder, a guide sleeve and a guide pillar, wherein the bottom of the upper die holder is sequentially provided with an upper mounting plate, an upper padding plate, an upper fixing plate, a female die and a stripper plate, the stripper plate is fixed on the upper mounting plate through a stripper screw, and a stripper rubber is arranged between the upper mounting plate and the stripper plate; the die holder top is equipped with down mounting panel, bottom plate and holds in the palm the flitch in proper order, holds in the palm still to be equipped with the locating pin between flitch and the mounting panel down, is equipped with the terrace die on the bottom plate, and wherein the terrace die comprises nine boss pieces that are circular equipartition, and the top of every boss piece comprises plane section and inclined plane section, and the plane section length L of boss piece is 1 ~ 3mm, and the inclined plane section angle of inclination alpha of boss piece is 3 ~ 5, opens on the die to have the cavity of just arranging nine boss pieces.
The device has the defect that after 9 grooves are processed on the diaphragm spring through the convex membrane block, the rotating spring diaphragm processes nine subsequent grooves, and the diaphragm spring after being processed once cannot be accurately positioned during rotation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technique not enough, provide a diaphragm notching die, solve among the prior art unable technical problem who advances line location to diaphragm spring's secondary operation.
In order to achieve the above technical purpose, the technical solution of the utility model provides a diaphragm notching die, a serial communication port, include:
the upper die assembly comprises an upper fixing plate and a plurality of blanking heads, and the plurality of blanking heads are arranged on the upper fixing plate and are uniformly distributed along the circumferential direction of a first circumference;
the lower die assembly comprises a lower die plate and a lower die base, the lower die plate is arranged opposite to the upper fixing plate, the lower die plate is provided with a plurality of concave cavities opposite to the blanking head, the concave cavities and the blanking head are arranged in a one-to-one correspondence manner, one end of the lower die plate, which is close to the upper fixing plate, is recessed inwards to form at least two first fixing holes, the first fixing holes are arranged between two adjacent concave cavities, and the circle center of each first fixing hole is positioned on the symmetry axis of the two adjacent concave cavities; the lower die base is arranged at one end of the lower die plate, which is far away from the upper fixing plate, and is connected to the lower die plate;
the central positioning assembly comprises a first positioning column, and the first positioning column is arranged on the lower template and is coaxial with the first circumference;
each elastic positioning assembly comprises a second positioning column and a first spring, the second positioning column can slide and is inserted into the first fixing hole in a matched mode, one end of the first spring abuts against the lower die base, and the other end of the first spring abuts against one end, far away from the upper fixing plate, of the second positioning column.
Preferably, the number of the elastic positioning assemblies is three, the elastic positioning assemblies are uniformly distributed along the circumferential direction of the first circumference, and the elastic positioning assemblies are distributed in three first fixing holes.
Compared with the prior art, the beneficial effects of the utility model include: placing a blank of the diaphragm spring with a central hole on the lower template, sleeving the blank of the diaphragm spring with the central hole on the first positioning column, pressing the upper die assembly downwards, enabling the blanking head to act on the blank of the diaphragm spring, and punching a waist circular hole and a cutting groove on the diaphragm spring under the combined action of the blanking head and the inner wall of the concave cavity; then the mould subassembly rebound in the control, under the effect of second spring, promote the second reference column protrusion in the lower bolster rotates the diaphragm spring blank after the blanking, locates the diaphragm spring blank through centre bore cover first reference column locates the second reference column with the grooving or the oval hole cover of diaphragm spring blank after the blanking, has realized the accurate location of diaphragm spring blank, and control then is to pushing down go up the mould subassembly, act on the diaphragm spring blank, under the combined action of the inner wall of punching head and cavity, waist round hole and grooving are cut out on diaphragm spring, have realized the blanking of twenty four grooving of diaphragm spring and waist round hole.
Drawings
FIG. 1 is a schematic structural view of a finished diaphragm spring;
fig. 2 is a schematic structural diagram of the present invention;
FIG. 3 is an enlarged partial schematic view at A in FIG. 2;
FIG. 4 is an enlarged partial schematic view at B of FIG. 2;
FIG. 5 is an enlarged partial schematic view at C of FIG. 2;
FIG. 6 is a schematic structural view of the upper die assembly, the stripper assembly and the punch head of the present invention;
FIG. 7 is a cross-sectional view taken along line D-D of FIG. 6;
fig. 8 is a schematic structural view of the upper die assembly, the punching head, the connecting screw and the ejector rod of the present invention;
fig. 9 is a three-dimensional schematic view of a middle circular hole punching block and a grooving punching head according to the present invention;
fig. 10 is a schematic structural view of the middle waist circular hole punching block and the grooving punching head of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides a diaphragm punching die, as shown in fig. 1 to 10, including last membrane module 1, lower membrane module 2, central locating component 3, at least one elastic locating component 4, take off material subassembly 5, spacing subassembly 6, go up membrane module 1 and include upper fixed plate 11, a plurality of punching head 12 set up in upper fixed plate 11 and along the circumference evenly distributed of first circumference.
The first circumference is a circumference taking the center of the upper fixing plate 11 as the center of a circle and the axis of the upper fixing plate 11 as the axis.
The lower die assembly 2 comprises a lower die plate 21 and a lower die base 22, the lower die plate 21 is arranged opposite to the upper fixing plate 11, the lower die plate 21 is provided with a plurality of concave cavities opposite to the punching heads 12, the concave cavities and the punching heads 12 are arranged in a one-to-one correspondence manner, one end of the lower die plate 21, which is close to the upper fixing plate 11, is recessed inwards to form at least two first fixing holes, the first fixing holes are arranged between two adjacent concave cavities, and the circle center of each first fixing hole is positioned on the symmetry axis of the two adjacent concave cavities; the lower die holder 22 is disposed at an end of the lower die plate 21 away from the upper fixing plate 11 and connected to the lower die plate 21.
Specifically, lower die assembly 2 still includes lower bolster 23, bottom plate 24, bottom bolster foot 25, and bottom bolster 23 sets up and just is connected in bottom bolster 22, bottom bolster 21 respectively between lower bolster 21 and the die holder 22, and bottom bolster 24 sets up in the one end that the upper fixed plate 11 was kept away from to lower bolster 22, and bottom bolster foot 25 sets up between bottom bolster 24 and the die holder 22 and connects respectively in bottom bolster 24, die holder 22.
The central positioning component 3 comprises a first positioning column 31, and the first positioning column 31 is arranged on the lower template 21 and coaxially arranged with the first circumference.
Specifically, the upper die assembly 1 further includes an upper padding plate 13, an upper die holder 14, an upper padding foot 15 and an upper supporting plate 16, the upper padding plate 13, the upper die holder 14, the upper padding foot 15 and the upper supporting plate 16 are sequentially arranged at one end of the upper fixing plate 11 far away from the lower die plate 21, two ends of the upper padding plate 13 are respectively connected to the upper fixing plate 11 and the upper die holder 14, and two ends of the upper padding foot 15 are respectively connected to the upper supporting plate 16 and the upper die holder 14.
Preferably, the upper fixing plate 11 has a plurality of mounting grooves formed along the first circumference, the mounting grooves are formed along the cavity in a one-to-one correspondence manner, the punching head 12 includes a circular waist hole punching block 121, a slot punching head 122, and a fixing screw 123, the circular waist hole punching block 121 is fixedly connected to the slot punching head 122, a plurality of fourth threaded holes are formed in ends of the circular waist hole punching block 121 and the slot punching head 122 close to the upper cushion plate 13, a fourth through hole is formed in the upper cushion plate 13 corresponding to each fourth threaded hole, a third countersunk hole is formed in the upper mold base 14 corresponding to each fourth through hole, the fixing screw 123 is formed in the one-to-one correspondence manner, and a threaded end of the fourth countersunk hole passes through the third countersunk hole and the fourth through hole and is threadedly connected to the fourth threaded hole.
Preferably, the number of the punching heads 12 can be set according to needs, the number of the punching heads 12 can be three, four, five, six, seven, eight, nine, ten, eleven, twelve, etc., and the number of the punching heads 12 is preferably twelve.
Preferably, the upper fixing plate 11 is coaxially provided with a second fixing hole and a third fixing hole, the diameter of the third fixing hole is smaller than that of the second fixing hole, the upper stripper plate 54 is provided with a fourth fixing hole opposite to the third fixing hole, the upper die assembly 1 further includes a guide post 17, the guide post 17 includes a fixing block 171, a first guide post 172, a second guide post 173 and a guide sleeve 174, the fixing block 171 is slidably inserted into the second fixing hole and abuts against the inner wall of the bottom of the second fixing hole, one end of the first guide post 172 is connected to the fixing block 171, and the other end of the first guide post 172 slidably penetrates through the second fixing hole and the fourth fixing hole; the lower plate 21 has a fifth fixing hole opposite to the first guide pillar 172.
The second guide post 173 is connected to an end of the lower die base 22 close to the upper die base 14 along an axial direction of the first circumference, and the guide sleeve 174 is connected to an end of the upper die base 14 close to the lower die base 22 opposite to the second guide post 173.
The elastic positioning components 4 are arranged in one-to-one correspondence with the first fixing holes, each elastic positioning component 4 includes a second positioning column 41 and a first spring 42, the second positioning column 41 is slidably inserted into the first fixing hole, one end of the first spring 42 abuts against the lower die holder 22, and the other end abuts against one end of the second positioning column 41 away from the upper fixing plate 11.
Preferably, the lower backing plate 23 is provided with a sixth fixing hole opposite to the first fixing hole, the lower die holder 22 is provided with a third threaded hole opposite to the sixth fixing hole, the elastic positioning assembly 4 further comprises a first stud 43, the first stud 43 is in threaded connection with the third threaded hole, and one end of the first stud 43, which is far away from the lower die plate 21, is provided with a straight groove; the first spring 42 is disposed between the second positioning pillar 41 and the first stud 43, and has one end abutting against the second positioning pillar 41 and the other end abutting against the first stud 43.
Preferably, the lower backing plate 23 is provided with a seventh fixing hole corresponding to the first countersunk hole, and the first screw 32 passes through the lower backing plate 23 through the seventh fixing hole in a rotatable manner.
Preferably, the circle center of the second guide pillars 173 is a second circle, the upper fixing plate 11 has a plurality of fifth through holes corresponding to the second guide pillars 173, the axis of the fifth through holes intersects with the second circle, the fifth through holes are all arranged along the circumferential direction of the first circle, the fifth through holes and the mounting grooves are sequentially and alternately arranged along the circumferential direction of the first circle, and the number of the fifth through holes is twelve.
Preferably, a fixing post 44 is formed at one end of the second positioning post 41 close to the lower die base 22 and protrudes outwards, the fixing post 44 is slidably inserted into the sixth fixing hole, and the fixing post 44 abuts against one end of the first spring 42.
The stripping assembly 5 comprises a stripper plate 51, a connecting screw 52, an elastic stripper block 53, an upper stripper plate 54 and a stripper rod 55, the stripper plate 51 is arranged between the upper die holder 14 and the upper supporting plate 16, one end of the stripper plate 51, which is far away from the upper supporting plate 16, is provided with at least three second countersunk holes, the second countersunk holes are uniformly distributed on the upper supporting plate 16, the connecting screw 52 and the second countersunk holes are arranged one by one, the threaded end of the connecting screw 52 can rotatably penetrate through the second countersunk holes and is in threaded connection with the upper supporting plate 16, and the elastic stripper block 53 is arranged between the stripper plate 51 and the upper supporting plate 16 and is respectively abutted against the stripper plate 51 and the upper supporting plate 16; the upper stripping plate 54 is arranged at one end of the upper fixing plate 11 close to the lower die plate 21 and is slidably connected to the upper fixing plate 11 along the axial direction of the first circumference, a plurality of through grooves are formed in the upper stripping plate 54 relative to the blanking head 12, the through grooves and the blanking head 12 are arranged in a one-to-one correspondence manner, one end of the ejector rod 55 abuts against the upper stripping plate 54, and the other end of the ejector rod slidably penetrates through the upper fixing plate 11, the upper cushion plate 13 and the upper die holder 14 and abuts against the ejector plate 51.
Specifically, the upper stripper plate 54 is provided with a seventh fixing hole corresponding to the first positioning column 31, the lower template 21 is provided with a first threaded hole along the axial direction of the first circumference, one end of the first positioning column 31, which is far away from the lower template 21, is recessed inwards to form a first countersunk hole, the central positioning assembly 3 further comprises a first screw 32, and the threaded end of the first screw 32 can rotate to penetrate through the first countersunk hole and is in threaded connection with the first threaded hole.
Specifically, the upper die holder 14 is provided with a first through hole along the axial direction of the first circumference, the upper backing plate 13 is provided with a second through hole opposite to the first through hole, the upper fixing plate 11 is provided with a third through hole opposite to the second through hole, and the other end of the ejector rod 55 can slidably penetrate through the third through hole, the second through hole and the first through hole; the elastic discharging block 53 may be a rubber block, an elastic high molecular polymer, etc., and preferably, the elastic discharging block 53 is a rubber block.
Specifically, the upper die holder 14 is provided with at least one first through hole along the axial direction of a first circumference, the upper backing plate 13 is provided with at least one second through hole opposite to the first through hole, the second through holes are arranged in one-to-one correspondence with the first through holes, and the diameters of the second through holes are equal to the diameters of the first through holes; the upper fixing plate 11 is provided with at least one third through hole corresponding to the second through hole, the third through hole and the second through hole are arranged in a one-to-one correspondence manner, and the diameter of the third through hole is smaller than that of the fourth through hole; the upper stripping plate 54 is provided with at least one second threaded hole corresponding to the second through hole; the stripping assembly 5 further comprises at least one connecting piece 56, the connecting pieces 56 are arranged in one-to-one correspondence with the second threaded holes, each connecting piece 56 comprises a first column body 561, a second column body 562, a third column body 563 and a second stud 564, the first column body 561 and the second column body 562 are coaxially connected with one side, the first column body 561 and the second column body 562 can be slidably inserted into the first through hole and the second through hole, and the second column body 562 abuts against one end, far away from the upper stripping plate 54, of the upper fixing plate 11; one end of the third column 563 is slidably inserted into the third through hole, the other end passes through the upper fixing plate 11, and the second stud 564 is screwed into the second threaded hole.
Preferably, the upper backing plate 13 is provided with a fourth through hole along the axial direction of the first circumference, the upper fixing plate 11 is provided with a fifth through hole corresponding to the fourth through hole, the stripping assembly 5 further comprises a second spring 57, one end of the second spring 57 abuts against the upper die holder 14, and the other end of the second spring 57 penetrates through the fourth through hole and the fifth through hole and abuts against the upper stripping plate 54.
The limiting component 6 comprises a first limiting column 61 and a second limiting column 62, one end of the first limiting column 61 is connected to the upper die base 14 in the axial direction of the first circumference, the joint is located at one end, close to the lower die plate 21, of the upper die base 14, the distance between the other end of the first limiting column 61 and the upper die base 14 is smaller than the distance between the upper stripper plate 54 and the upper die base 14, the second limiting column 62 is connected to the lower die base 22 relative to the first limiting column 61, and one end, far away from the lower die base 22, of the second limiting column 62 is flush with one end, far away from the lower die base 22, of the lower die plate 21.
The utility model discloses a concrete work flow: the blank of the diaphragm spring with the central hole is arranged on the lower template 21, the blank of the diaphragm spring with the central hole is sleeved on the first positioning column 31, then the upper die assembly 1 is pressed downwards, the upper stripper plate 54 contacts the diaphragm spring blank first, the diaphragm spring blank is pressed downwards by the upper stripper plate 54 along with the continuous pressing of the upper stripper plate 54, the diaphragm spring blank pushes the second positioning column 41 to compress the first spring 42, when the diaphragm spring blank abuts against the lower template 21, the diaphragm spring blank stops moving downwards, at this time, the upper stripper plate 54 moves upwards relative to the upper fixing plate 11, the upper stripper plate 54 slides relative to the first guide pillar 172 and compresses the second spring 57, the connecting piece 56 is pushed to move along the guide of the first through hole, the blanking head 12 protrudes out of the upper stripper plate 54 through the through groove and acts on the diaphragm spring blank, under the combined action of the punch head 12 and the inner wall of the recess, a circular waist hole and a notch are punched in the diaphragm spring.
Then, the upper die assembly 1 is controlled to move upwards, in the process that the upper stripper plate 54 moves upwards, the elastic stripper block 53 resets under the action of self elastic restoring force, the ejector plate 51 is pushed to move downwards along the guide direction of the connecting screw 52, the ejector plate 51 pushes the ejector rod 55 to move downwards, the ejector rod 55 pushes the upper stripper plate 54 to move downwards relative to the upper fixing plate 11, the second spring 57 pushes the upper stripper plate 54 to move downwards relative to the upper fixing plate 11 under the combined action of the self elastic restoring force, and under the combined action of the second spring 57 and the elastic stripper block 53, the blanking end of the blanking head 12 slowly retracts into the through groove, so that the blanking head 12 is separated from the diaphragm spring blank.
Under the effect of second spring 57, promote second reference column 41 protrusion in lower bolster 21, rotate the diaphragm spring blank after the blanking, locate first reference column 31 with the diaphragm spring blank through centre bore cover, locate second reference column 41 with the diaphragm spring blank through grooving and the oval hole cover after the blanking, realized the accurate location of diaphragm spring blank.
And controlling and then downwards pressing the upper die assembly 1, wherein the upper stripper plate 54 contacts the diaphragm spring blank firstly, the upper stripper plate 54 presses the diaphragm spring blank downwards along with the continuous pressing of the upper stripper plate 54, at the moment, the upper stripper plate 54 moves upwards relative to the upper fixing plate 11, the upper stripper plate 54 slides relative to the first guide pillar 172 and compresses the second spring 57 to push the connecting piece 56 to move along the guide of the first through hole, the blanking head 12 protrudes out of the upper stripper plate 54 through the through groove and acts on the diaphragm spring blank, under the combined action of the blanking head 12 and the inner wall of the cavity, a waist round hole and a cutting groove are punched on the diaphragm spring, and the blanking of twenty-four cutting grooves and waist round holes of the diaphragm spring is realized.
And then controlling the upper die assembly 1 to move upwards, wherein in the process that the upper stripper plate 54 moves upwards, the elastic stripper block 53 resets under the action of self elastic restoring force, the ejector plate 51 is pushed to move downwards along the guide of the connecting screw 52, the ejector plate 51 pushes the ejector rod 55 to move downwards, the ejector rod 55 pushes the upper stripper plate 54 to move downwards relative to the upper fixing plate 11, the second spring 57 pushes the upper stripper plate 54 to move downwards relative to the upper fixing plate 11 under the combined action of the self elastic restoring force, and under the combined action of the second spring 57 and the elastic stripper block 53, the blanking end of the blanking head 12 slowly retracts into the through groove, so that the blanking head 12 is separated from the diaphragm spring blank, and the formed diaphragm spring part is obtained.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. A membrane notching die, comprising:
the upper die assembly comprises an upper fixing plate and a plurality of blanking heads, and the plurality of blanking heads are arranged on the upper fixing plate and are uniformly distributed along the circumferential direction of a first circumference;
the lower die assembly comprises a lower die plate and a lower die base, the lower die plate is arranged opposite to the upper fixing plate, the lower die plate is provided with a plurality of concave cavities opposite to the blanking head, the concave cavities and the blanking head are arranged in a one-to-one correspondence manner, one end of the lower die plate, which is close to the upper fixing plate, is recessed inwards to form at least two first fixing holes, the first fixing holes are arranged between two adjacent concave cavities, and the circle center of each first fixing hole is positioned on the symmetry axis of the two adjacent concave cavities; the lower die base is arranged at one end of the lower die plate, which is far away from the upper fixing plate, and is connected to the lower die plate;
the central positioning assembly comprises a first positioning column, and the first positioning column is arranged on the lower template and is coaxial with the first circumference;
each elastic positioning assembly comprises a second positioning column and a first spring, the second positioning column can slide and is inserted into the first fixing hole in a matched mode, one end of the first spring abuts against the lower die base, and the other end of the first spring abuts against one end, far away from the upper fixing plate, of the second positioning column.
2. The membrane notching die of claim 1, wherein the lower die plate defines a first threaded hole along an axial direction of the first circumference, an end of the first positioning post remote from the lower die plate is recessed inward to form a first counter-sunk hole, the centering assembly further includes a first screw, and a threaded end of the first screw rotatably passes through the first counter-sunk hole and is threadedly coupled to the first threaded hole.
3. The membrane notching die of claim 1, wherein the upper die assembly further comprises an upper padding plate, an upper die holder, an upper pad foot and an upper supporting plate, the upper padding plate, the upper die holder, the upper pad foot and the upper supporting plate are sequentially arranged at one end, away from the lower die plate, of the upper fixing plate, two ends of the upper padding plate are respectively connected to the upper fixing plate and the upper die holder, and two ends of the upper pad foot are respectively connected to the upper supporting plate and the upper die holder.
4. The membrane notching die of claim 3, wherein the upper die assembly further comprises a stripping assembly, the stripping assembly comprises a stripper plate, connecting screws, an elastic unloading block, an upper stripper plate and a stripper rod, the stripper plate is arranged between the upper die base and the upper support plate, one end of the stripper plate, which is far away from the upper support plate, is provided with at least three second countersunk holes, the second countersunk holes are uniformly distributed on the upper support plate, the connecting screws and the second countersunk holes are arranged one by one, a threaded end of the connecting screw can rotatably penetrate through the second countersunk hole and is in threaded connection with the upper support plate, the elastic unloading block is arranged between the stripper plate and the upper support plate and is respectively abutted against the stripper plate and the upper support plate; the upper stripper plate is arranged at one end, close to the lower die plate, of the upper fixing plate and is connected to the upper fixing plate in a sliding mode along the axial direction of the first circumference, a plurality of through grooves are formed in the opposite punching heads of the upper stripper plate, the through grooves correspond to the punching heads in a one-to-one mode, one end of the ejector rod is abutted to the upper stripper plate, and the other end of the ejector rod penetrates through the upper fixing plate, the upper base plate and the upper die base in a sliding mode and is abutted to the ejector plate.
5. The membrane notching die of claim 4, wherein the upper die base has a first through hole formed along an axial direction of the first circumference, the upper pad has a second through hole formed opposite to the first through hole, the upper fixing plate has a third through hole formed opposite to the second through hole, and the other end of the ejector rod slidably passes through the third through hole, the second through hole and the first through hole.
6. The membrane notching die of claim 4, wherein the upper cushion plate has a fourth through hole along the axial direction of the first circumference, the upper fixing plate has a fifth through hole opposite to the fourth through hole, the stripping assembly further comprises a second spring, one end of the second spring abuts against the upper die holder, and the other end of the second spring passes through the fourth through hole and the fifth through hole and abuts against the upper stripping plate.
7. The membrane notching die of claim 1, wherein the lower die assembly further comprises a lower backing plate, a lower supporting plate and lower supporting feet, the lower backing plate is arranged between the lower backing plate and the lower die base and is respectively connected to the lower die base and the lower die plate, the lower supporting plate is arranged at one end of the lower die base, which is far away from the upper fixing plate, and the lower supporting feet are arranged between the lower supporting plate and the lower die base and are respectively connected to the lower supporting plate and the lower die base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922276855.8U CN211515797U (en) | 2019-12-17 | 2019-12-17 | Diaphragm punching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922276855.8U CN211515797U (en) | 2019-12-17 | 2019-12-17 | Diaphragm punching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211515797U true CN211515797U (en) | 2020-09-18 |
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ID=72465773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922276855.8U Active CN211515797U (en) | 2019-12-17 | 2019-12-17 | Diaphragm punching die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211515797U (en) |
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2019
- 2019-12-17 CN CN201922276855.8U patent/CN211515797U/en active Active
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