CN210098693U - Stamping die for processing shifting fork pier extrusion - Google Patents
Stamping die for processing shifting fork pier extrusion Download PDFInfo
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- CN210098693U CN210098693U CN201920153727.1U CN201920153727U CN210098693U CN 210098693 U CN210098693 U CN 210098693U CN 201920153727 U CN201920153727 U CN 201920153727U CN 210098693 U CN210098693 U CN 210098693U
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Abstract
The utility model relates to a stamping die for processing shifting fork pier extrusion, which comprises an upper die base, a lower die base, a guide mechanism, a male die assembly and a female die assembly corresponding to the male die assembly, wherein the female die assembly is arranged on the lower die base; the male die assembly is arranged above the female die assembly, and the upper die base is arranged above the male die assembly and is fixedly connected with the male die assembly; the guide mechanism is arranged between the upper die base and the lower die base, and the upper die base moves close to or away from the lower die base under the guide of the guide mechanism. The beneficial effects of the utility model are that the mould operation is stable, product stamping quality preferred, and production efficiency obviously improves, and the cost is lower.
Description
Technical Field
The utility model relates to a stamping die technical field, concretely relates to a stamping die for processing shift fork mound is crowded.
Background
The manual transmission of the automobile needs to use a shifting fork which is a component on the automobile gearbox, is connected with a speed changing handle and is positioned at the lower side of the handle, and shifts a middle speed changing wheel to change the input/output speed ratio. According to different occasions and different shifting fork production processes, the shifting fork is molded by using a casting process and is also molded by using a stamping die. The shifting fork plays the effect of shifting, for realizing the action of shifting, guarantees better performance of shifting, and different thickness need be designed into to the different positions of shifting fork.
At present, various shifting fork parts have upsetting structures, and the traditional process method comprises the steps of upsetting materials and then finely punching and blanking. However, the upsetting process causes a step change due to the flow of the material, and the amount of the change fluctuates. This can lead to the unable normal production of fine blanking work step, and this processing mode requires highly to equipment, and shift fork two paws department thickness is 5.6mm by 8.5mm mound crowded, and thickness deflection reaches 2.9mm, and is extremely high to equipment requirement, and the mould is once to be 5.6mm with thickness 8.5mm mound crowded moreover, seriously influences the life of mould. In addition, the existing die guide mechanism can only guide the die and cannot limit the operation of the die.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a stamping die for processing shift fork mound is crowded is provided, and the mould operation is stable, product stamping quality preferred, and production efficiency obviously improves, and the cost is lower.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
a stamping die for processing shifting fork upsetting extrusion comprises an upper die base, a lower die base, a guide mechanism, a male die assembly and a female die assembly corresponding to the male die assembly, wherein the female die assembly is arranged on the lower die base; the male die assembly is arranged above the female die assembly, and the upper die holder is arranged above the male die assembly and is fixedly connected with the male die assembly; the guide mechanism is arranged between the upper die holder and the lower die holder, and the upper die holder moves up and down under the guide of the guide mechanism to be close to or far away from the lower die holder.
The utility model has the advantages that: in the stamping process of the die, the upper die base is welded with a hydraulic cylinder on a machine tool through bolts, so that the die is convenient to disassemble and assemble. During punching, the upper die base and the male die assembly are driven to move downwards by the hydraulic cylinder so as to punch and form materials on the female die assembly, so that the operation is simple and convenient; in the stamping process, the upper die base moves up and down along the guide mechanism, the operation is stable, and the product stamping quality is better. The utility model discloses simple structure, the mould operation is stable, product stamping quality preferred, and production efficiency obviously improves, and the cost is lower.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the female die assembly comprises a female die and a middle base plate, the middle base plate is horizontally arranged on the lower die base, and the female die is arranged on the middle base plate; the female die is provided with a cavity for positioning a part to be punched, the cavity and the male die component are arranged in a vertically corresponding mode, and the middle base plate is provided with a cavity corresponding to and communicated with the cavity.
The further scheme has the advantages that the female die is fixedly connected with the middle cushion plate and the middle cushion plate is fixedly connected with the lower die base through bolts or welding, the structure is simple, and the disassembly and the assembly are convenient; during stamping, the cavity is overlapped with the final outline of the part, and the outline of the part before upsetting is smaller than the size of the cavity (the process size is determined by test data). The part is subjected to upsetting deformation in the concave cavity through strong pressure between the male die and the back pressure plate, so that the upsetting thickness of the part is obtained; simultaneously, because of the material flows, make the appearance of part and cavity laminate mutually to reach required part shape, realized the stamping forming of the pier step structure of shift fork, simple structure and efficient.
Furthermore, a counter pressure plate is horizontally arranged in the concave cavity and can move up and down along the concave cavity; the upper surface of the counter pressure plate is in a step shape matched with the shape of the lower surface of the processing shifting fork.
The beneficial effect of adopting above-mentioned further scheme is that during the punching press, utilize the powerful pressure between terrace die, the back pressure board, with part mound crowded deformation in the cavity, make the appearance of part and cavity laminate mutually to reach the shift fork shape of processing, realized the stamping forming of the pier step structure of shift fork, simple structure and efficient.
Furthermore, the female die assembly further comprises a top rod and a driving device which are vertically arranged, the upper end of the top rod penetrates through the lower die holder and extends into the female die to be connected with the back pressure plate, and the driving device is connected with the lower end of the top rod and drives the top rod to vertically move.
The driving device is another hydraulic cylinder on the machine tool, and the lower end of the ejector rod is fixedly connected with the other hydraulic cylinder on the machine tool in a bolt or welding mode; after the punching is finished, the male die and the upper die base move upwards under the action of the hydraulic cylinders, and then the other hydraulic cylinder pushes the ejector rod to drive the counter pressing plate and the part to move upwards, so that the part can be taken out of the female die conveniently and quickly.
Further, a lower die base plate is arranged on the lower die base, and the middle base plate is arranged on the lower die base plate.
The beneficial effect of adopting above-mentioned further scheme is that the stability of backing plate in the operation in-process in the increase to increase the stability of die operation, ensure the quality of part punching press.
Further, the male die assembly comprises a male die, the male die is mounted on the upper die base, and the lower surface of the male die is in a step shape matched with the shape of the upper surface of the processing shifting fork.
The beneficial effect of adopting above-mentioned further scheme is that the terrace die is fixed on the upper die base through all modes that technical personnel in the field can think, simple structure, easy dismounting.
Furthermore, the male die component also comprises a male die fixing plate, the male die fixing plate is horizontally arranged on the upper die base, and the male die is arranged on the male die fixing plate and matched with the female die component.
The beneficial effects of adopting above-mentioned further scheme are that simple structure increases the stability of terrace die, ensures the stability of part punching press.
The lower die base is characterized by further comprising a limiting assembly, wherein the limiting assembly comprises an optocoupler limiting switch and a limiting piece, and the optocoupler limiting switch is arranged on the lower surface of the lower die base; the limiting piece is installed on the lower surface of the upper die base and matched with the optical coupling limiting switch.
The beneficial effect who adopts above-mentioned further scheme is that the punching press in-process, plays limiting displacement in order to the removal of going up the die holder through spacing piece and opto-coupler limit switch cooperation, avoids the punching press to cross the head and lead to the part to damage.
Furthermore, the guide mechanism comprises a guide sleeve and a guide pillar, the guide sleeve is fixed on the lower die holder, the lower part of the guide pillar is arranged in the guide sleeve in a sliding mode, and the upper end of the guide pillar is fixedly connected with the upper die holder.
The beneficial effects of adopting above-mentioned further scheme are that in the stamping process, the effect of pneumatic cylinder on the lathe of upper die base reciprocates with the punching press material, and guide pin bushing and guide pillar play effectual guide effect to the upper die base at this in-process, ensure that the upper die base operates steadily, improve the quality of product punching press.
Further, the guide mechanism comprises an upper wedge block and a lower wedge block, the upper wedge block is installed on the lower surface of the upper die base, and a sliding block is arranged at the lower end of the upper wedge block; the lower wedge block is installed on the upper surface of the lower die base, and a sliding rail matched with the sliding block is arranged at the upper end of the upper wedge block.
The beneficial effects of adopting above-mentioned further scheme are that in the stamping process, the effect of pneumatic cylinder on the lathe of upper die base reciprocates with the punching press material, and the upper wedge piece plays effectual guide effect to the upper die base with the special construction of lower wedge piece utilization self in this process, ensures that the upper die base operates steadily, improves the quality of product punching press.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is a schematic view of a part of the structure of the middle and lower die holders of the present invention;
FIG. 4 is a schematic structural view of the female mold of the present invention;
fig. 5 is a schematic structural view of the middle counter plate of the present invention;
fig. 6 is a schematic structural view of the middle male die of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises an upper die base, 2, a lower die base, 3, a guide sleeve, 4, a guide pillar, 5, an ejector rod, 6, an upper wedge block, 7, a lower wedge block, 8, a female die, 9, a middle cushion plate, 10, a lower die cushion plate, 11, a back pressure plate, 12, a back pressure cushion plate, 13, a male die, 14, a male die cushion plate, 15, a male die fixing plate, 16, an optical coupling limit switch, 17 and a limit sheet.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 5, the utility model provides a stamping die for processing shifting fork mound, which comprises an upper die base 1, a lower die base 2, a guide mechanism, a male die assembly and a female die assembly corresponding to the male die assembly, wherein the female die assembly is arranged on the lower die base 2; the male die component is arranged above the female die component, and the upper die base 1 is arranged above the male die component and is fixedly connected with the male die component; the guide mechanism is arranged between the upper die holder 1 and the lower die holder 2, and the upper die holder 1 moves up and down under the guide of the guide mechanism to be close to or far away from the lower die holder 2. In the stamping process of the die, the upper die base 1 and a hydraulic cylinder on a machine tool are welded together through bolts, so that the die is convenient to disassemble and assemble. During punching, the upper die base 1 and the male die assembly are driven to move downwards through the hydraulic cylinder so as to punch and form materials on the female die assembly, and the operation is simple and convenient; in the stamping process, the upper die base 1 moves up and down along the guide mechanism, the operation is stable, and the stamping quality of the product is better. The utility model discloses simple structure, the mould operation is stable, product stamping quality preferred, and production efficiency obviously improves, and the cost is lower.
It should be noted that, the number of the guide mechanisms is preferably four, and the four guide mechanisms are uniformly distributed between the upper die holder 1 and the lower die holder 2 at intervals, so as to increase the stability of the upper die holder 1 in the stamping process and improve the quality of part stamping.
Example 1
In the embodiment, the guide mechanism comprises an upper wedge block 6 and a lower wedge block 7, the upper wedge block 6 is arranged on the lower surface of the upper die holder 1 and is integrally formed with the lower surface of the upper die holder, and a sliding block is arranged at the lower end of the upper wedge block 6; lower wedge 7 slidable mounting is on the upper surface of die holder 2, and the upper end of going up wedge 6 is equipped with the slide rail of mutually supporting with the slider, and the lower extreme of going up wedge 6 and the upper end of lower wedge 7 are the slope form respectively. In addition, the slider and the upper wedge-shaped block 6 are integrally formed to move up and down to punch materials, the upper wedge-shaped block 6 and the lower wedge-shaped block 7 play an effective guiding role in the upper die base 1 by utilizing a special structure of the upper wedge-shaped block and the lower wedge-shaped block in the process, the upper die base 1 is ensured to run stably, and the product punching quality is improved.
It should be noted that the lower end of the lower wedge-shaped block 7 is provided with a sliding block which is matched with a sliding rail on the lower die holder 2, the sliding block is tightly clamped with the sliding rail, and the sliding block and the sliding rail generate a large friction force in the moving process, so that the moving speed of the lower wedge-shaped block 7 is not too fast, and the upper wedge-shaped block 6 is buffered.
Example 2
In this embodiment, besides the above structure, the guide mechanism may also adopt the guide sleeve 3 and the guide post 4, and other structures are completely the same as those of the first embodiment. The guide post 4 is vertically arranged on the upper die holder 1, and the lower end of the guide post is welded with the upper die holder 1; the guide sleeve 3 is vertically provided with a lower die holder 2, and the upper end of the guide sleeve is welded with the lower die holder 2. The lower part of the guide sleeve 3 is sleeved on the upper part of the guide post 4 in a sliding manner so as to increase the running stability of the upper die holder 1.
In the utility model, the female die component comprises a female die 8, and the female die 8 is arranged on the lower die holder 2; the female die 8 is fixed on the lower die holder 2 through bolts or welding, and the die is simple in structure and convenient to disassemble and assemble. The female die assembly also comprises a middle backing plate 9 and a lower backing plate 10, the lower backing plate 10 is horizontally arranged on the lower die base 2, and the female die assembly is convenient to disassemble and assemble by adopting a welding or bolt connection mode generally; the middle base plate 9 is horizontally arranged on the lower die base plate 10, and is usually welded or connected through bolts, so that the disassembly and the assembly are convenient; the middle backing plate 9 is provided with a concave cavity matched with the male die assembly, and the concave cavity and the middle backing plate 9 are integrally formed; the female die is arranged on the middle base plate 9, the female die 8 is provided with a die cavity for positioning a part to be punched, the die cavity and the male die component are arranged in a vertically corresponding mode, and the die cavity is communicated with the concave cavity. During punching, the concave cavity coincides with the final appearance profile of the part, and the part is extruded and deformed in the concave cavity through strong pressure between the convex die 13 and the back pressure plate 11, so that the appearance of the part is attached to the concave cavity, the required part shape is achieved, punch forming of a pier step structure of the shifting fork is achieved, and the structure is simple and high in efficiency.
Preferably, in the utility model, a back pressure plate 11 and a back pressure backing plate 12 are horizontally arranged in the cavity from top to bottom, and the back pressure plate 11 and the back pressure backing plate 12 can move up and down along the cavity; the upper surface of the counter plate 11 is in a step shape matching the shape of the lower surface of the processing fork. During punching, the machined shifting fork is extruded and deformed in the cavity by utilizing strong pressure between the male die 13 and the back pressure plate 11, so that the appearance of the machined shifting fork is attached to the cavity, the shape of the required shifting fork is achieved, punch forming of a pier step structure of the shifting fork is realized, and the punch forming device is simple in structure and high in efficiency.
And the final appearance profile of the part (namely the shifting fork) to be processed coincides with the die cavity on the female die 8, and the part to be processed is subjected to pier extrusion deformation in the die cavity of the female die 8 through strong pressure between the male die 13 and the counter pressure plate 11, so that the appearance of the part to be processed is attached to the die cavity of the female die 8, the required part shape is achieved, the punch forming of the pier step structure of the shifting fork is realized, and the structure is simple and the efficiency is high. The counter pressure plate 12 has a larger contour than the counter pressure plate 11 with the aim of increasing the contact area with the lower plate 10. When the pier is extruded, the unit pressure intensity can be reduced, and the deformation and the damage of the pier can be avoided.
Additionally, the utility model provides a die subassembly still includes the ejector pin 5 and the drive arrangement of vertical setting, and the upper end of ejector pin 5 passes die holder 2, lower mould backing plate 10 and back pressure backing plate 12 in proper order and is connected with back pressure board 11. The driving device is another hydraulic cylinder on the machine tool, and the lower end of the ejector rod 5 is fixedly connected with the other hydraulic cylinder on the machine tool in a bolt or welding mode; after the punching press is accomplished, terrace die 13 and upper die base 1 rebound under the effect of pneumatic cylinder, then another pneumatic cylinder promotes ejector pin 5 and drives back pressure plate 11 and part rebound to take out the part from die 8, convenient and fast need not the manual work and takes out the part from die cavity and the cavity of die 8 in, labour saving and time saving, production efficiency improves greatly.
In the utility model, the male die component comprises a male die 13, the male die 13 is arranged on the upper die base 1, and the lower surface of the male die 13 is in a ladder shape matched with the appearance of the upper surface of the processing shifting fork; the male die 13 is fixed on the upper die base 1 in all ways which can be thought by the technicians in the field, and the structure is simple and the assembly and disassembly are convenient. The male die assembly further comprises a male die backing plate 14 and a male die fixing plate 15, wherein the male die backing plate 14 is horizontally arranged on the lower surface of the upper die base 1, and is usually welded or connected through bolts, so that the assembly and disassembly are convenient; the male die fixing plate 15 is horizontally arranged on the male die backing plate 14, and is usually welded or connected through bolts, so that the male die fixing plate is convenient to disassemble and assemble; the male die 13 is mounted on the male die holder 15 and is matched with the female die assembly, and the male die is usually welded or bolted, so that the male die is convenient to disassemble and assemble.
The utility model also comprises a limit component, the limit component comprises an optical coupling limit switch 16 and a limit sheet 17, the optical coupling limit switch 16 is arranged on the lower surface of the lower die holder 2 by adopting all the ways which can be thought by the technicians in the field; and the limiting sheet 17 is welded on the lower surface of the upper die holder 1 and is matched with the optical coupling limiting switch 16. In the punching press process, through spacing piece 17 and the cooperation of opto-coupler limit switch 16 in order to play limiting displacement to the removal of upper die base 1, avoid the punching press to cross the head and lead to the part to damage. In addition, chinese patent publication No. CN 206960916U discloses a connection relationship between the optocoupler limit switch 16 and the controller.
The working principle of the utility model is as follows:
the ejector rod 5 ejects the counter pressure plate 11 into the female die 8 under the action of the hydraulic cylinder on the machine tool, and materials are manually placed in the female die 8; the upper die holder 1 and the male die 13 move the punching material downwards under the action of another hydraulic cylinder on the machine tool, after the back pressure base plate 12 is rigidly attached to the lower base plate 10, the male die 13 continues to move downwards under the action of strong machine tool pressure, and the stepped shapes of the male die 13 and the back pressure plate 11 are gradually pressed into parts to start upsetting. In the upsetting process, materials at the upsetting positions of the upper surface and the lower surface of the part transversely flow under the action of pressure, so that the thickness of the part material is thinned; meanwhile, the flowing material fills and fully extrudes the sealed cavity to obtain the final outline of the part. Then the upper die holder 1 and the male die 13 move upwards under the action of another hydraulic cylinder on the machine tool; the ejector rod 5 moves upwards under the action of a hydraulic cylinder on the machine tool so as to eject the stamped part.
The utility model provides a beneficial effect that technical scheme brought is:
a new process is created, the manufacturing method of the process of firstly fine blanking and then flattening is realized for the first time, and the defects of the traditional process are overcome; the inner side surface of the fork opening before the part is arranged in the mound extrusion reaches the size requirement, and the inner side of the fork opening is tightly attached to the cavity of the female die when the part is mound extruded, so that the brightness requirement of the used functional surface is effectively ensured; the smooth operation of batch production is ensured; provides a new idea and a new method for making process routes of other similar products.
Compared with the prior art, the utility model, fully show its superiority and lie in: the defects of the traditional process are overcome, and the smooth batch production is ensured.
It should be noted that, the present invention relates to all the cylinders (model SC-80) and the optical coupling limit switches (model JR31-20N) which are in the prior art, and the above components are electrically connected to the controller (model TC-SCR), and the control circuit between the controller and each component is in the prior art.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The utility model provides a stamping die for processing shift fork mound is crowded which characterized in that: the die comprises an upper die holder (1), a lower die holder (2), a guide mechanism, a male die assembly and a female die assembly corresponding to the male die assembly, wherein the female die assembly is arranged on the lower die holder (2); the male die assembly is arranged above the female die assembly, and the upper die holder (1) is arranged above the male die assembly and is fixedly connected with the male die assembly; the guide mechanism is arranged between the upper die holder (1) and the lower die holder (2), and the upper die holder (1) moves up and down under the guide of the guide mechanism to be close to or far away from the lower die holder (2); the guide mechanism comprises an upper wedge block (6) and a lower wedge block (7), the upper wedge block (6) is installed on the lower surface of the upper die base (1), and a sliding block is arranged at the lower end of the upper wedge block (6); the lower wedge block (7) is slidably mounted on the upper surface of the lower die holder (2), and sliding rails matched with the sliding block and the lower wedge block (7) are respectively arranged on the upper end of the upper wedge block (6) and the upper surface of the lower die holder (2).
2. The stamping die for processing shifting fork upsetting of claim 1, wherein: the die assembly comprises a die (8) and a middle base plate (9), the middle base plate (9) is horizontally arranged on the lower die holder (2), the die (8) is arranged on the middle base plate (9), the die (8) is provided with a cavity for positioning to treat a punching part, the cavity is correspondingly arranged up and down with the male die assembly, and the middle base plate (9) is provided with a cavity corresponding to and communicated with the cavity.
3. The stamping die for processing shifting fork upsetting as claimed in claim 2, wherein: a counter pressure plate (11) is horizontally arranged in the concave cavity, and the counter pressure plate (11) can move up and down along the concave cavity; the upper surface of the counter pressure plate (11) is in a step shape matched with the shape of the lower surface of the processing shifting fork.
4. The stamping die for processing shifting fork upsetting as claimed in claim 3, wherein: the die assembly further comprises a push rod (5) and a driving device, the push rod (5) is vertically arranged, the upper end of the push rod (5) penetrates through the lower die holder (2) and extends into the cavity to be connected with the counter pressure plate (11), and the driving device is connected with the lower end of the push rod (5) and drives the push rod (5) to vertically move.
5. The stamping die for processing shifting fork upsetting as claimed in claim 2, wherein: the lower die base (2) is provided with a lower die base plate (10), and the middle base plate (9) is installed on the lower die base plate (10).
6. A stamping die for processing shift fork rams as claimed in any one of claims 1 to 5, wherein: the male die component comprises a male die (13), the male die (13) is installed on the upper die base (1), and the lower surface of the male die (13) is in a step shape matched with the shape of the upper surface of the processing shifting fork.
7. The stamping die for processing shifting fork upsetting of claim 6, wherein: the male die component further comprises a male die fixing plate (15), the male die fixing plate (15) is horizontally arranged on the upper die base (1), and the male die (13) is arranged on the male die fixing plate (15) and matched with the female die component.
8. The stamping die for processing shift fork upsetting as claimed in any one of claims 1 to 5 and 7, wherein: the die holder is characterized by further comprising a limiting assembly, wherein the limiting assembly comprises an optical coupling limiting switch (16) and a limiting sheet (17), and the optical coupling limiting switch (16) is mounted on the lower surface of the lower die holder (2); the limiting piece (17) is installed on the lower surface of the upper die base (1) and matched with the optical coupling limiting switch (16).
9. The stamping die for processing shift fork upsetting as claimed in any one of claims 1 to 5 and 7, wherein: the guide mechanism comprises a guide sleeve (3) and a guide pillar (4), the guide sleeve (3) is fixed on the lower die holder (2), the lower part of the guide pillar (4) is arranged in the guide sleeve (3) in a sliding mode, and the upper end of the guide pillar (4) is fixedly connected with the upper die holder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920153727.1U CN210098693U (en) | 2019-01-29 | 2019-01-29 | Stamping die for processing shifting fork pier extrusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920153727.1U CN210098693U (en) | 2019-01-29 | 2019-01-29 | Stamping die for processing shifting fork pier extrusion |
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| Publication Number | Publication Date |
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| CN210098693U true CN210098693U (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920153727.1U Active CN210098693U (en) | 2019-01-29 | 2019-01-29 | Stamping die for processing shifting fork pier extrusion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505432A (en) * | 2022-02-24 | 2022-05-17 | 漳州锐腾电器有限公司 | Pier extrusion die capable of changing cross section width of stamping part and pier extrusion finish cutting process |
-
2019
- 2019-01-29 CN CN201920153727.1U patent/CN210098693U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505432A (en) * | 2022-02-24 | 2022-05-17 | 漳州锐腾电器有限公司 | Pier extrusion die capable of changing cross section width of stamping part and pier extrusion finish cutting process |
| CN114505432B (en) * | 2022-02-24 | 2024-05-14 | 漳州锐腾电器有限公司 | Pier extrusion die capable of changing section width of stamping part and pier extrusion precision cutting process |
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| TR01 | Transfer of patent right |
Effective date of registration: 20211022 Address after: 430000 No. 109, Quanquan Fourth Road, Wuhan Economic Development Zone, Wuhan City, Hubei Province Patentee after: Wuhan Fanzhou fine blanking Co.,Ltd. Address before: 430000, No.8, Jinlong Road, Wuhan Economic and Technological Development Zone, Hubei Province Patentee before: WUHAN FANZHOU MACHINERY MANUFACTURING Co.,Ltd. |
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| TR01 | Transfer of patent right |