CN213887836U - Pipeline connecting clamp forming progressive die for automobile - Google Patents
Pipeline connecting clamp forming progressive die for automobile Download PDFInfo
- Publication number
- CN213887836U CN213887836U CN202022961081.5U CN202022961081U CN213887836U CN 213887836 U CN213887836 U CN 213887836U CN 202022961081 U CN202022961081 U CN 202022961081U CN 213887836 U CN213887836 U CN 213887836U
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- 230000000750 progressive effect Effects 0.000 title claims abstract description 11
- 238000004080 punching Methods 0.000 claims abstract description 44
- 238000009966 trimming Methods 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 37
- 238000005192 partition Methods 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 description 21
- 239000002184 metal Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
The utility model discloses a pipeline connection clamp forming progressive die for an automobile, wherein a first punching male die, a second punching male die, an upper flanging male die, a trimming male die, a first forming cavity, a second forming cavity, a third forming cavity, a flanging male die, a forming male die and a blanking male die are sequentially arranged on the bottom surface of a movable die from left to right; the top surface of the fixed die is sequentially provided with a first recess, a second recess, a lower flanging male die, a cutting recess, a first forming male die, a second forming male die, a third forming male die, a flanging recess, a forming recess and a blanking recess from left to right; the structure of the automobile pipe connecting clamp utilizes continuous punching on a strip material to realize the manufacturing and forming of the continuous automobile pipe connecting clamp, and the automobile pipe connecting clamp can be formed in sequence without punching on a thin plate strip material, so that the manufacturing efficiency of the automobile pipe connecting clamp is improved, and the yield is high.
Description
Technical Field
The utility model belongs to the technical field of the mould structure technique and specifically relates to a pipe connection clamp shaping upgrades mould for car.
Background
Generally, a pipe joint clamp for an automobile with a metal structure is cast and molded by a mold, but the requirement for parts and products for the automobile is high, however, the clamp molded by casting and molding the mold at present often has the defects of air holes and the like, and the strength of the clamp is easily affected by the air holes and the like, so that the yield is low, and the production efficiency is low.
Disclosure of Invention
The utility model aims at solving the not enough and one kind of yield when metal material clamp production that designs of above-mentioned technique is high, and a pipe connection clamp shaping upgrades the mould for car that production efficiency is high.
The utility model relates to a pipeline joint clamp molding progressive die for automobiles, which comprises a movable die and a fixed die, wherein the bottom surface of the movable die is sequentially provided with a first punching male die, a second punching male die, an upper flanging male die, a trimming male die, a first molding cavity, a second molding cavity, a third molding cavity, a flanging male die, a molding male die and a blanking male die from left to right;
a first recess corresponding to the first punching male die, a second recess corresponding to the second punching male die, a lower flanging male die corresponding to the upper flanging male die, a cutting recess corresponding to the trimming male die, a first forming male die corresponding to the first forming cavity, a second forming male die corresponding to the second forming cavity, a third forming male die corresponding to the third forming cavity, a flanging recess corresponding to the flanging male die, a forming recess corresponding to the forming male die and a blanking recess corresponding to the blanking male die are sequentially arranged on the top surface of the fixed die from left to right;
the bottom surface of the upper flanging male die is provided with two bulges which are arranged at intervals, the inner side surface of one bulge is provided with an inclined surface, a trapezoidal flanging cavity is formed between the inner side surfaces of the two bulges, the top surface of the lower flanging male die is provided with a trapezoidal flanging convex block, and the trapezoidal flanging convex block and the trapezoidal flanging cavity are matched correspondingly;
the forming male die comprises a top rod and push rods positioned on two sides of the top rod; the two push rods respectively correspond to the two arc structures of the pipeline connecting hoop in position, a support body is fixed on the bottom surface of the forming recess, and the lifting driving mechanism drives the push rods to lift and fold the two horizontal arc structures of the pipeline connecting hoop downwards so that the two arc structures are vertical;
the movable die is provided with a stripper plate through a spring, the first punching male die, the second punching male die, the upper flanging male die, the trimming male die, the flanging male die, the forming male die and the blanking male die penetrate through the stripper plate, and the first forming cavity, the second forming cavity and the third forming cavity are arranged on the bottom surface of the stripper plate.
Preferably, the first punching male die and the second punching male die each comprise two forming dies arranged in a staggered manner, the side face of the forming die on the rear side in the first punching male die is provided with convex teeth, the side face of the forming die on the front side in the second punching male die is provided with convex teeth, a substrate for forming the pipeline connecting clamp is formed on the strip material between the movable die and the fixed die by punching through the two forming dies of the first punching male die and the second punching male die, and the substrate is provided with the convex teeth.
Preferably, the first forming cavity comprises a first forming groove, a first partition plate is arranged in the middle of the first forming groove to form two forming cavities, an arc surface is arranged between the side surface of the first partition plate and the groove bottom surface of the first forming groove, two first forming blocks corresponding to the two forming cavities are arranged at the top of the first forming male die, the two first forming blocks are arranged at intervals, and the two adjacent ends of the two first forming blocks are provided with the arc surfaces.
Preferably, the second forming cavity comprises a forming die, two first arc forming grooves formed in the bottom surface of the forming die, and a second partition plate arranged between the two first arc forming grooves, two first circular forming blocks respectively corresponding to the two first arc forming grooves are arranged at the top of the second forming male die, and the two first circular forming blocks are arranged at intervals to form a first forming recess correspondingly matched with the second partition plate.
Preferably, the third forming cavity comprises two second arc forming grooves and a third partition plate arranged between the two second arc forming grooves, the second forming punch is arranged in the groove of the fixed die, the top of the second forming punch is provided with two second circular forming blocks respectively corresponding to the two second arc forming grooves, the two second circular forming blocks are arranged at intervals to form a second forming recess correspondingly matched with the third partition plate, the side surface of the arc surface of the second circular forming block is provided with an arc-shaped bulge, the side surface of the bottom of the arc-shaped bulge is an inclined surface, a forming top block is correspondingly arranged below the inclined surface, the top surface of the forming top block is also provided with an inclined surface, a spring is arranged between the forming top block and the second circular forming block, the left inner wall and the right inner wall of the groove are respectively provided with a convex block, one convex block enables a gap to be formed between the left inner wall of the groove and the forming top block, the other convex block enables a gap to be formed between the right inner wall of the groove and the second forming punch, an insert rod is correspondingly arranged above the two gaps, the insert rod is fixed on the movable die, and the bottom of the insert rod penetrates through the stripper plate; the width of the bottom of the inserted bar is larger than the width of the gap.
The utility model discloses a pipe connection clamp shaping upgrades mould for car, the pipe connection clamp for car that its structure utilized continuous type to cut out processing on the strip and realize continuous type is made the shaping, and does not have the blanking on the sheet metal strip and can form in proper order a pipe connection clamp for car to pipe connection clamp manufacturing efficiency for the car has been promoted, and the yield is higher.
Drawings
FIG. 1 is a schematic view of the mold-open state;
FIG. 2 is a schematic structural view of a closed mold state;
FIG. 3 is a schematic view of a mold manufacturing process;
FIG. 4 is a partial enlarged view of the point A
FIG. 5 is a schematic view of a progressive formation of a pipe connector clip for an automobile;
FIG. 6 is a schematic view of the first forming cavity cooperating with the first forming punch;
FIG. 7 is a schematic view of the configuration of the second forming pocket in cooperation with the second forming punch;
FIG. 8 is a schematic view of the configuration of the third forming pocket cooperating with the third forming punch;
FIG. 9 is a schematic structural view of the flanging male die matched with the flanging recess;
FIG. 10 is a schematic view of the mating of the forming dented and forming punch;
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
Example 1:
as shown in the accompanying drawings, the progressive die for forming the pipe connection clamp for the automobile described in the embodiment comprises a movable die 1 and a fixed die 2, a thin plate strip 3 which continuously and intermittently performs translational motion is arranged between the movable die 1 and the fixed die 2, and a first punching male die 12, a second punching male die 13, an upper flanging male die 14, a trimming male die 31, a first forming cavity 15, a second forming cavity 16, a third forming cavity 17, a flanging male die 19, a forming male die 30 and a blanking male die 18 are sequentially arranged on the bottom surface of the movable die 1 from left to right; the top surface of the fixed die 2 is sequentially provided with a first recess 21 corresponding to the position of a first punching convex die 12, a second recess 22 corresponding to the position of a second punching convex die 13, a lower flanging convex die 23 corresponding to the position of an upper flanging convex die 14, a cutting recess 32 corresponding to the position of a trimming convex die 31, a first forming convex die 24 corresponding to the position of a first forming cavity 15, a second forming convex die 29 corresponding to the position of a second forming cavity 16, a third forming convex die 25 corresponding to the position of a third forming cavity 17, a flanging recess 20 corresponding to the position of a flanging convex die 19, a forming recess 26 corresponding to the position of a forming convex die 30 and a blanking recess 27 corresponding to the position of a blanking convex die 18 from left to right, wherein a stripper plate is arranged in a movable die through a spring, and the first punching convex die, the second punching convex die, the upper flanging convex die, the trimming convex die, the flanging convex die, the forming convex die and the blanking convex die all penetrate through the stripper plate, the first forming concave cavity, the second forming concave cavity and the third forming concave cavity are all arranged on the bottom surface of the stripper plate.
On the basis of the structure, the concrete structure of the male die and the concave cavity is as follows:
the first punching male die 12 and the second punching male die 13 respectively comprise two forming dies 100 which are arranged in a staggered mode, the side face, located on the rear side, of the first punching male die 12 is provided with a convex tooth 200, the side face, located on the front side, of the second punching male die is provided with a convex tooth 200, after die assembly is carried out, the two forming dies of the first punching male die and the second punching male die are used for punching, a substrate used for forming the pipeline connecting clamp is formed on a strip material between the movable die and the fixed die, and the substrate is provided with the convex teeth.
Two bulges 141 arranged at intervals are arranged on the bottom surface of the upper flanging male die 14, an inclined plane 100 is arranged on the inner side surface of one bulge 141, a trapezoidal flanging cavity 143 is formed between the inner side surfaces of the two bulges 141, a trapezoidal flanging convex block 231 is arranged on the top surface of the lower flanging male die 14, the trapezoidal flanging convex block 231 and the trapezoidal flanging cavity 143 are matched with each other correspondingly, and after die assembly, the two side edges of the front end part and the rear end part of the substrate are subjected to flanging at the trapezoidal flanging convex block and the trapezoidal flanging cavity under the mutual matching effect.
The first forming cavity 15 comprises a first forming groove 151, a first partition plate 152 is arranged in the middle of the first forming groove 151 to form two forming cavities, an arc surface 300 is arranged between the side surface of the first partition plate 152 and the groove bottom surface of the first forming groove 151, two first forming blocks 241 corresponding to the two forming cavities respectively are arranged at the top of the first forming male die 24, the two first forming blocks 241 are arranged at intervals, the arc surfaces 300 are arranged at two adjacent ends of the two first forming blocks 241, and after die assembly, the first partition plate presses down to sink between the two first forming blocks in the middle of the folded substrate, so that the middle of the folded substrate is recessed, and preparation is made for bending and forming an arc-shaped structure at the front end and the rear end of the substrate in subsequent steps.
The second forming cavity 16 includes a forming die 161, two first arc forming grooves 162 disposed on the bottom surface of the forming die 161, and a second partition 163 disposed between the two first arc forming grooves 162, two first circular forming blocks 291 are disposed on the top of the second forming punch 29 and correspond to the two first arc forming grooves 162, and the two first circular forming blocks 291 are disposed at intervals to form a first forming recess corresponding to the second partition 163. After the die is closed, the substrate is pressed downwards through the second partition plate and sunk into the concave of the substrate, and then the two first arc forming grooves and the two first circular forming blocks are matched with each other to enable the substrate to be bent forwards and backwards to form an arc-shaped structure.
The third molding cavity 17 comprises two second arc molding grooves 172 and a third clapboard 173 arranged between the two second arc molding grooves 172, the second molding punch 25 is arranged in the groove 251 of the fixed mold, the top of the second molding punch 25 is provided with two second circular molding blocks 2531 respectively corresponding to the two second arc molding grooves 172, the two second circular molding blocks 2531 are arranged at intervals to form a second molding recess 255 correspondingly matched with the third clapboard 173, the side surface of the arc surface of the second circular molding block 2531 is provided with an arc-shaped bulge 2532, the side surface of the bottom of the arc-shaped bulge 2532 is an inclined surface 500, the lower part of the inclined surface 500 is correspondingly provided with a molding top block 254, the top surface of the molding top block 254 is also provided with an inclined surface 500, a spring 4 is arranged between the molding top block 254 and the second circular molding block 2531, the left inner wall and the right inner wall of the groove are respectively provided with a bump 256, and a bump 256 enables a gap 252 to be formed between the left inner wall of the groove 251 and the molding top block 254, another bump 256 enables a gap 252 to be formed between the right inner wall of the groove 251 and the second forming punch 25, an insert rod 171 is correspondingly arranged above the two gaps 252, the insert rod 171 is fixed on the moving die 1, and the bottom of the insert rod penetrates through the stripper plate 11; the width of the bottom of the insert rod 171 is larger than the width of the gap 252, after die assembly, the insert rod is pressed downwards through a third partition plate and sunk into the downward recess of the substrate, then the front and rear arc-shaped structures of the substrate are respectively positioned between a second arc-shaped forming groove and a second circular-shaped forming block and between another second arc-shaped forming groove and another second circular-shaped forming block, and then the insert rod is inserted into the gap to enable the second forming male die and the forming ejector block to be mutually closed, so that the convex teeth on the arc-shaped structures are bent under the mutual matching of the inclined plane of the arc-shaped protrusions and the inclined plane of the forming ejector block.
The forming male die 30 comprises a top rod 301 and push rods 302 positioned at two sides of the top rod 301; the two push rods 302 respectively correspond to the two arc structures of the pipeline connecting clamp, the supporting body 262 is fixed on the bottom surface of the forming recess 261, after die assembly is carried out, the top end of the supporting body is abutted to the bottom surface of the upper recess and the lower recess of the substrate, the ejector rods are abutted to the lower recess of the substrate, then the push rods are downwards folded to enable the two arc structures of the pipeline connecting clamp to be vertical in the downward moving process, and finally the blanking male die cuts the side portion of the formed pipeline connecting clamp for the automobile, so that the formed pipeline connecting clamp for the automobile is separated from a thin plate strip material.
The working principle realized by integrating the structure is as follows:
in the process of continuously and intermittently performing translational motion on a sheet strip, after a fixed die and a movable die are continuously closed and opened, in the process of closing and opening the die, two forming dies of a first punching male die and a second punching male die punch holes to form a substrate for forming a pipeline connecting clamp on the strip between the movable die and the fixed die, the substrate is provided with convex teeth, after the substrate is moved in a translational mode between an upper flanging male die and a lower flanging male die, two side edges of the front end part and the rear end part of the formed substrate are matched with a trapezoidal flanging convex block and a trapezoidal flanging die cavity to enable two side surfaces of the formed substrate to be folded downwards, then the sheet strip is continuously translated, the substrate with the formed circular arc structure is positioned between the trimming male die and a cutting recess, then the part of the circular arc structure of the trimming male die, which is connected with the sheet strip, is cut off, and the cut substrate is translated between a first forming cavity forming die and a first forming male die, pressing down a first partition plate to enable the middle of the hemmed substrate to be sunk between two first forming blocks, preparing for bending and forming a circular arc structure at the front end part and the rear end part of the substrate in the subsequent step, then, after the substrate with the formed circular arc structure is translated to a position between a second forming cavity and a second forming convex die, pressing down the substrate to be sunk into the sinking of the substrate through a second partition plate, then, mutually matching and bending two first circular arc forming grooves and two first circular forming blocks to form the circular arc structure, then, after the substrate with the circular arc structure is positioned between a third forming cavity and a third forming convex die, pressing down the substrate to be sunk into the sinking of the substrate through a third partition plate, and then, respectively positioning the front circular arc structure and the rear circular arc structure of the substrate between one second circular arc forming groove and one second circular forming block, and between the other second circular arc forming groove and the other second circular forming block, then the convex teeth on the circular arc structure are mutually matched with the inclined plane of the circular arc protrusion and the inclined plane of the forming jacking block for bending, then the substrate bent by the convex teeth is translated between the flanging convex die and the flanging recess, the flanging convex die presses down to fold the end sheet body of the circular arc structure downwards to form a vertical device, finally, the substrate after flanging is translated between the forming convex die and the forming recess, the ejector rod jacks the concave part of the substrate, and the lifting driving mechanism drives the push rod to lift and descend to fold the two horizontal circular arc structures of the pipeline connecting clamp so as to enable the two circular arc structures to be vertical, at the moment, the convex die discharges materials to cut the side part of the formed pipeline connecting clamp for the automobile, so that the formed pipeline connecting clamp for the automobile is separated from the strip materials, and then the steps are carried out for repeatedly punching and continuously processing and forming the batch type pipeline connecting clamp for the automobile, wherein in order to avoid the interference condition of this side of turning down when the sheet metal is translated, be provided with lifter 28 and spring 4 on the cover half, spring 4 inlays and establishes in the locating hole 41 of cover half 2, and the bottom of lifter 28 is contradicted on the top of spring 4, the top week side of lifter 28 is provided with annular 281, and the processing is in the side insert annular 281 of sheet metal strip 3, the sheet metal strip rises through spring drive lifter after moving down this moment and makes the sheet metal strip by the lifting, in order to reach and connect on the sheet metal strip with fashioned substrate by the lifting, thereby be convenient for the sheet metal strip carries out translational motion, promote performance.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.
Claims (5)
1. A progressive die for forming an automotive pipeline connecting clamp comprises a movable die and a fixed die and is characterized in that a first punching male die, a second punching male die, an upper edge folding male die, an edge cutting male die, a first forming cavity, a second forming cavity, a third forming cavity, an edge folding male die, a forming male die and a blanking male die are sequentially arranged on the bottom surface of the movable die from left to right;
a first recess corresponding to the first punching male die, a second recess corresponding to the second punching male die, a lower flanging male die corresponding to the upper flanging male die, a cutting recess corresponding to the trimming male die, a first forming male die corresponding to the first forming cavity, a second forming male die corresponding to the second forming cavity, a third forming male die corresponding to the third forming cavity, a flanging recess corresponding to the flanging male die, a forming recess corresponding to the forming male die and a blanking recess corresponding to the blanking male die are sequentially arranged on the top surface of the fixed die from left to right;
the bottom surface of the upper flanging male die is provided with two bulges which are arranged at intervals, the inner side surface of one bulge is provided with an inclined surface, a trapezoidal flanging cavity is formed between the inner side surfaces of the two bulges, the top surface of the lower flanging male die is provided with a trapezoidal flanging convex block, and the trapezoidal flanging convex block and the trapezoidal flanging cavity are matched correspondingly;
the forming male die comprises a top rod and push rods positioned on two sides of the top rod; the two push rods respectively correspond to the two arc structures of the pipeline connecting hoop in position, a support body is fixed on the bottom surface of the forming recess, and the lifting driving mechanism drives the push rods to lift and fold the two horizontal arc structures of the pipeline connecting hoop downwards so that the two arc structures are vertical;
the movable die is provided with a stripper plate through a spring, the first punching male die, the second punching male die, the upper flanging male die, the trimming male die, the flanging male die, the forming male die and the blanking male die penetrate through the stripper plate, and the first forming cavity, the second forming cavity and the third forming cavity are arranged on the bottom surface of the stripper plate.
2. The progressive die for forming a pipe connector yoke for an automobile as claimed in claim 1, wherein the first and second punching male dies each comprise two dies arranged in a staggered manner with respect to each other, the first punching male die has a projection provided on a side surface of the die positioned on the rear side, the second punching male die has a projection provided on a side surface of the die positioned on the front side, and the substrate for forming the pipe connector yoke is formed on the strip between the movable die and the stationary die by punching the two dies of the first and second punching male dies, and the projection is formed on the substrate.
3. The progressive die for forming a pipe joint clamp for an automobile according to claim 2, wherein the first forming cavity comprises a first forming groove, a first partition is disposed in the middle of the first forming groove to form two forming cavities, an arc surface is disposed between a side surface of the first partition and a bottom surface of the first forming groove, two first forming blocks are disposed on the top of the first forming punch and correspond to the two forming cavities, the two first forming blocks are spaced apart from each other, and two adjacent ends of the two first forming blocks are both provided with arc surfaces.
4. The progressive die for forming a pipe connector band for an automobile according to claim 3, wherein the second forming cavity encloses the forming die, and two first circular arc forming grooves provided on a bottom surface of the forming die and a second partition plate provided between the two first circular arc forming grooves, and wherein two first circular forming blocks are provided on a top portion of the second forming punch to correspond to the two first circular arc forming grooves, respectively, and the two first circular forming blocks are spaced apart from each other to form a first forming recess corresponding to the second partition plate.
5. The progressive die for forming the pipe connector clip for the automobile according to claim 4, wherein the third forming cavity comprises two second circular arc forming grooves and a third partition plate disposed between the two second circular arc forming grooves, the second forming punch is disposed in the groove of the stationary die, the top of the second forming punch is provided with two second circular forming blocks respectively corresponding to the two second circular arc forming grooves, the two second circular forming blocks are disposed at intervals to form a second forming recess correspondingly matching with the third partition plate, the side of the circular arc surface of the second circular forming block is provided with a circular arc protrusion, the side of the bottom of the circular arc protrusion is an inclined surface, a forming top block is correspondingly disposed below the inclined surface, the top of the forming top block is also provided with an inclined surface, a spring is disposed between the forming top block and the second circular forming block, and the left and right inner walls of the groove are respectively provided with a convex block, a gap is formed between the left inner wall of the groove and the forming ejector block by one lug, a gap is formed between the right inner wall of the groove and the second forming male die by the other lug, and an insert rod is correspondingly arranged above the two gaps, is fixed on the movable die and penetrates through the stripper plate at the bottom; the width of the bottom of the inserted bar is larger than the width of the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022961081.5U CN213887836U (en) | 2020-12-09 | 2020-12-09 | Pipeline connecting clamp forming progressive die for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022961081.5U CN213887836U (en) | 2020-12-09 | 2020-12-09 | Pipeline connecting clamp forming progressive die for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213887836U true CN213887836U (en) | 2021-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022961081.5U Expired - Fee Related CN213887836U (en) | 2020-12-09 | 2020-12-09 | Pipeline connecting clamp forming progressive die for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213887836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996696A (en) * | 2021-11-26 | 2022-02-01 | 江苏泽恩汽机车部品制造有限公司 | Continuous stamping mechanism for automobile clamp |
-
2020
- 2020-12-09 CN CN202022961081.5U patent/CN213887836U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996696A (en) * | 2021-11-26 | 2022-02-01 | 江苏泽恩汽机车部品制造有限公司 | Continuous stamping mechanism for automobile clamp |
| CN113996696B (en) * | 2021-11-26 | 2024-04-23 | 江苏泽恩汽机车部品制造有限公司 | Continuous stamping mechanism for automobile clamp |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210806 |