CN216095890U - Reverse-pulling side-punching wedge die - Google Patents
Reverse-pulling side-punching wedge die Download PDFInfo
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- CN216095890U CN216095890U CN202121917612.9U CN202121917612U CN216095890U CN 216095890 U CN216095890 U CN 216095890U CN 202121917612 U CN202121917612 U CN 202121917612U CN 216095890 U CN216095890 U CN 216095890U
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Abstract
The utility model provides a reverse-pull side-punching wedge die which comprises an upper die holder, a lower die holder, a wedge slide block assembly and a resetting piece, wherein the upper die holder comprises an upper die holder main body and an extension guide plate; the inclined wedge sliding block assembly comprises an inclined wedge sliding block main body and a punch, the inclined wedge sliding block main body is connected with the upper die base, the inclined wedge sliding block main body is connected with the lower die base, one side of the inclined wedge sliding block main body is connected with the punch, the other side of the inclined wedge sliding block main body extends outwards to form a guide plate sliding surface, and the guide plate sliding surface is connected with the extension guide plate; the reset piece is arranged between the upper die base and the inclined wedge sliding block component. This back-pull side blow slide wedge mould sets up the extension baffle in one side of upper die base main part, directly transmits the holding power of die holder main part to slide wedge slider main part to the upper die base by extending the baffle, effectively avoids slide wedge slider main part to take place rotatoryly, promotes mould motion stability, promotes the part precision of punching a hole.
Description
Technical Field
The utility model relates to the field of machine manufacturing, in particular to a reverse-pull side-punching wedge die.
Background
In order to meet the requirements of some special functions, holes with a plurality of stamping angles are designed on a part of an automobile sheet metal part, as shown in fig. 1, in order to reduce stamping processes and lower die cost during die development, a first hole 1 ', a second hole 2 ' and a third hole 3 ' with different stamping angles on the part need to be punched in the same process. When the first hole 1' is punched, in order to ensure that the body of the side punching wedge does not interfere with the part, the side punching wedge needs to be pulled backwards.
The existing back-pull side-punching wedge die is as shown in fig. 2, a wedge slide block 4 ' is limited by a cover plate 5 ' to realize sliding connection with an upper die base 6 ', the cover plate 5 ' is fixed on the upper die base 6 ' through a cover plate screw 7 ', the upper die base 6 ' drives the wedge slide block 4 ' to press downwards, the wedge slide block 4 ' moves along the inclined plane direction of a driving block 8 ', the driving block 8 ' provides a supporting force vertical to the inclined plane direction for the wedge slide block 4 ', and the wedge slide block 4 ' moves left and right by the component force of the supporting force in the horizontal direction to realize side punching. The structure has the defects that: the upper die holder 6 ' does not support the wedge slide block 4 ' in the stress direction of the supporting force, and the wedge slide block 4 ' has unbalanced stress and has a twisting tendency to influence the punching precision of parts; meanwhile, the torsion of the wedge slide block 4 ' is counteracted by the radial stress of the cover plate screw 7 ', so that the cover plate screw 7 ' is easy to fatigue and break, and the structure of the die is unstable; the cover plate 5 'and the wedge slide block 4' are easy to fall off, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a reverse-pull side-punching tapered wedge die, wherein an extension guide plate is arranged on one side of an upper die holder main body, and the support force of a lower die holder main body on a tapered wedge sliding block main body is directly transmitted to an upper die holder by the extension guide plate, so that the tapered wedge sliding block main body is effectively prevented from rotating, the motion stability of the die is improved, and the punching precision of parts is improved.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
according to one aspect of the utility model, a reverse-pull side-piercing cam die is provided. The reverse-pulling side-punching wedge die comprises an upper die holder, a lower die holder, a wedge slide block assembly and a resetting piece, wherein the upper die holder comprises an upper die holder main body and an extension guide plate, and the extension guide plate is connected with one side of the upper die holder main body; the lower die base is arranged corresponding to the upper die base main body; the wedge sliding block assembly comprises a wedge sliding block main body and a punch, the wedge sliding block main body is connected with the upper die base so as to drive the wedge sliding block main body to move up and down through the upper die base, an inclined plane used for guiding the wedge sliding block main body is arranged on the lower die base, the wedge sliding block main body is connected with the lower die base so as to guide the left and right movement of the wedge sliding block main body through the inclined plane, and one side of the wedge sliding block main body is connected with the punch; the resetting piece is arranged between the upper die base and the inclined wedge sliding block assembly and is used for pushing the inclined wedge sliding block assembly to reset; the other side of the wedge sliding block main body extends outwards to form a guide plate sliding surface, and the guide plate sliding surface is connected with the extension guide plate.
According to an embodiment of the present invention, a line connecting an outer end of the extension guide and a lower end of the inclined plane is perpendicular to the inclined plane.
According to an embodiment of the present invention, the lower die holder includes a lower die holder main body and a convex V-shaped guide plate, the lower die holder main body is disposed corresponding to the upper die holder, the inclined surface is disposed on the lower die holder main body, the convex V-shaped guide plate is disposed on the inclined surface, and the tapered wedge slider assembly is in concave-convex connection with the convex V-shaped guide plate.
According to an embodiment of the present invention, the wedge block assembly further comprises a concave V-shaped guide plate connected to the wedge block body, wherein the concave V-shaped guide plate is in concave-convex contact with the convex V-shaped guide plate.
According to an embodiment of the present invention, the upper die holder further includes a pair of L-shaped cover plates, the L-shaped cover plates are connected to the upper die holder main body, and the L-shaped cover plates are respectively disposed on two sides of the tapered wedge slider main body to clamp the tapered wedge slider main body to slide along an axial direction of the L-shaped cover plates.
According to an embodiment of the present invention, the L-shaped cover plate is detachably fixed to the upper die base body by a screw.
According to an embodiment of the present invention, the upper die holder further includes a support guide, one side surface of the support guide is connected to the upper die holder main body, and the opposite side surface of the support guide abuts against the cam slider main body.
According to an embodiment of the present invention, the reset member is a nitrogen cylinder, a cylinder body of the nitrogen cylinder is connected to the upper die base main body, and a cylinder rod of the nitrogen cylinder is connected to the cam slider main body.
One embodiment of the present invention has the following advantages or benefits:
the utility model discloses a reverse-pull side-punching wedge die, which comprises an upper die holder, a lower die holder, a wedge sliding block assembly and a resetting piece, wherein the upper die holder comprises an upper die holder main body and an extension guide plate arranged on one side of the upper die holder main body, the wedge sliding block main body is connected to the upper die holder main body, a guide plate sliding surface is arranged on one side, corresponding to the extension guide plate, of the extension guide plate, the guide plate sliding surface is abutted against the guide plate sliding surface through the extension guide plate, when the wedge sliding block main body slides along an inclined plane, the supporting force of the lower die holder main body on the wedge sliding block main body is directly transmitted to the upper die holder main body through the extension guide plate, the rotation problem caused by the fact that the wedge sliding block main body is stressed unevenly is avoided, the motion stability of the die is improved, and the punching precision of parts is improved.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 is a schematic view of the structure of a part shown according to the prior art.
FIG. 2 is a front view of a reverse pull side impact cam die shown according to the prior art.
FIG. 3 is a perspective view of a reverse pull side impact cam die shown in accordance with an exemplary embodiment.
FIG. 4 is an exploded view of a cam slider assembly and an upper housing of a reverse side punch cam die according to an exemplary embodiment.
FIG. 5 is an exploded view of a reverse pull side impact cam die shown in accordance with an exemplary embodiment.
FIG. 6 is an internal schematic view of a reverse pull side impact cam die shown in accordance with an exemplary embodiment.
Wherein the reference numerals are as follows:
1', a first hole; 2', a second hole; 3', a third bore; 4', a wedge slide block; 5', a cover plate; 6', an upper die base; 7', cover plate screws; 8', a driving block;
1. an upper die holder; 11. an upper die base main body; 12. an extension guide plate; 13. an L-shaped cover plate; 14. supporting the guide plate; 2. a lower die holder; 21. a lower die holder body; 211. a bevel; 22. a convex V-shaped guide plate; 3. a tapered wedge slider assembly; 31. a tapered wedge slider body; 311. a guide plate sliding surface; 32. a punch; 33. a concave V-shaped guide plate; 4. a reset member; 5. and (4) screws.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
The terms "a," "an," "the," "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
As shown in fig. 3 to 6, fig. 3 is a perspective view illustrating a reverse-pull side-punch cam die according to the present invention. Fig. 4 shows an exploded view of a cam slider assembly 3 and an upper die holder 1 in a reverse-pull side-punching cam die provided by the utility model. Fig. 5 shows an exploded view of a reverse-pull side-punch cam die provided by the present invention. Fig. 6 shows a schematic internal view of a reverse-pull side-punch cam die according to the present invention.
The reverse-pulling side-punching wedge die comprises an upper die holder 1, a lower die holder 2, a wedge slide block assembly 3 and a resetting piece 4, wherein the upper die holder 1 comprises an upper die holder main body 11 and an extension guide plate 12, and the extension guide plate 12 is connected with one side of the upper die holder main body 11; the lower die holder 2 is arranged corresponding to the upper die holder main body 11; the inclined wedge sliding block assembly 3 comprises an inclined wedge sliding block main body 31 and a punch 32, the inclined wedge sliding block main body 31 is connected with the upper die holder 1 so as to drive the inclined wedge sliding block main body 31 to move up and down through the upper die holder 1, an inclined plane 211 used for guiding the inclined wedge sliding block main body 31 is arranged on the lower die holder 2, the inclined wedge sliding block main body 31 is connected with the lower die holder 2 so as to guide the inclined wedge sliding block main body 31 to move left and right through the inclined plane 211, and one side of the inclined wedge sliding block main body 31 is connected with the punch 32; the reset piece 4 is arranged between the upper die holder 1 and the tapered wedge sliding block assembly 3 and used for pushing the tapered wedge sliding block assembly 3 to reset; the other side of the wedge slider body 31 extends outwards to form a guide plate sliding surface 311, and the guide plate sliding surface 311 is connected with the extension guide plate 12.
Wherein, the upper die base main body 11 is fixed on the upper production machine, the upper part of the wedge slide block main body 31 is connected with the upper die base main body 11 in a sliding way, the lower die base main body 21 is fixed on the lower production machine, the lower die base main body 21 is provided with an inclined plane 211 for guiding the wedge slide block main body 31, the part is arranged at the position corresponding to the punch head 32 on the lower die base main body 21, when the upper die base main body 11 drives the wedge slide block main body 31 to press down, the wedge slide block main body 31 and the upper die base main body 11 slide in the horizontal direction and slide along the extending direction of the inclined plane 211 with the lower die base main body 21, the lower part of the wedge slide block main body 31 and one side of the upper die base main body 11 are provided with an extending guide plate 12, one side of the upper die base main body 11 extends to form a guide plate sliding fit surface 311, the extending guide plate 12 is abutted to the guide plate sliding fit surface 311, during the movement of the wedge slide block main body 31, the direction of the lower die base main body 21 to the wedge slide block main body 31 is vertical to the inclined plane 211 upwards, the extension guide plate 12 supports the wedge slider main body 31 on the path of the supporting force, and counteracts the component force of the lower die holder main body 21 on the wedge slider main body 31 in the vertical direction, and directly transmits the component force to the upper die holder main body 11, so that the slider is effectively prevented from rotating, the stability of the die movement is ensured, and the part punching precision is improved.
In a preferred embodiment of the present invention, a line connecting an outer end of the extension guide 12 and a lower end of the inclined plane 211 is perpendicular to the inclined plane 211.
As shown in fig. 3, since the supporting force direction of the lower die holder main body 21 to the tapered wedge slider main body 31 is perpendicular to the extending direction of the inclined plane 211, when the tapered wedge slider main body 31 is located at the lowest end of the inclined plane 211, the farthest end of the extension guide plate 12 is disposed in the supporting force direction borne by the tapered wedge slider main body 31, so as to directly offset the upward component force of the lower die holder main body 21 to the supporting force of the tapered wedge slider main body 31, so that the front surface of the extension guide plate 12 is stressed, and the stressed force is directly transmitted to the upper die holder main body 11, thereby avoiding the twisting tendency of the tapered wedge slider main body 31, ensuring the stability of the movement of the pull-side-punching tapered wedge die, and further improving the precision of the part punching.
In a preferred embodiment of the present invention, the lower die holder 2 includes a lower die holder main body 21 and a convex V-shaped guide plate 22, the lower die holder main body 21 is disposed corresponding to the upper die holder 1, the inclined surface 211 is disposed on the lower die holder main body 21, the convex V-shaped guide plate 22 is disposed on the inclined surface 211, and the slide wedge assembly 3 is in concave-convex connection with the convex V-shaped guide plate 22.
As shown in fig. 1, the tapered wedge sliding block assembly 3 is in concave-convex connection with the convex V-shaped guide plate 22, and the relative position between the tapered wedge sliding block assembly 3 and the inclined plane 211 is limited, so that the tapered wedge sliding block assembly 3 slides along the extending direction of the inclined plane 211 all the time, and the stable precision of punching is ensured. Meanwhile, the convex V-shaped guide plate and the wedge slide block component 3 have sliding surfaces and are easy to wear, the convex V-shaped guide plate 22 is arranged on the lower die holder main body 21 to replace the sliding connection of the lower die holder main body 21 and the wedge slide block component 3, the convex V-shaped guide plate 22 can be replaced only after being worn, and the maintenance cost is reduced.
In a preferred embodiment of the present invention, the wedge sled assembly 3 further comprises a concave V-shaped guide plate 33, the concave V-shaped guide plate 33 is connected with the wedge sled body 31, and the concave V-shaped guide plate 33 is in concave-convex connection with the convex V-shaped guide plate 22.
As shown in fig. 3, the concave V-shaped guide plate 33 is in concave-convex contact with the convex V-shaped guide plate 22, and limits the relative position between the wedge slider body 31 and the inclined plane 211, so that the wedge slider body 31 always slides along the extending direction of the inclined plane 211, and the stable punching precision is ensured. Meanwhile, the concave V-shaped guide plate and the convex V-shaped guide plate 22 have sliding surfaces and are easy to wear, the concave V-shaped guide plate 33 is arranged at the lower part of the wedge slide block main body 31 to replace the wedge slide block main body 31 and the convex V-shaped guide plate 22 to be in sliding connection, and the concave V-shaped guide plate 33 can be replaced only after being worn, so that the maintenance cost is reduced.
In a preferred embodiment of the present invention, the upper die holder 1 further includes a pair of L-shaped cover plates 13, the L-shaped cover plates 13 are connected to the upper die holder main body 11, and the L-shaped cover plates 13 are respectively disposed on two sides of the tapered wedge slider main body 31 to clamp the tapered wedge slider main body 31 to slide along an axial direction of the L-shaped cover plates 13.
As shown in fig. 1 and 2, the lower ends of the two L-shaped cover plates 13 protrude toward opposite sides respectively, and form a cavity structure with the bottom surface of the upper die base main body 11, the cross section of the upper portion of the tapered wedge slider main body 31 is of a "T" -shaped structure, and the extending portions at the two ends are clamped into the cavity structure and are connected with the two L-shaped cover plates 13 in a concave-convex manner, so that the tapered wedge slider main body 31 is prevented from slipping in the process of moving left and right in the axial direction of the L-shaped cover plates 13.
In a preferred embodiment of the present invention, the L-shaped cover plate 13 is detachably fixed to the upper die holder body 11 by screws 5.
As shown in fig. 1 and 2, the number of the screws 5 may be one or more, and when the tapered wedge slider main body 31 needs to be repaired or maintained, the tapered wedge slider main body 31 and the upper die base main body 11 can be detached by detaching the screws 5, which is simple and convenient. Set up in one side of upper die base main part 11 and extend behind the baffle 12, extend baffle 12 and support slide wedge main part 31, prevent that slide wedge main part 31 from probably taking place torsional tendency, and then screw 5 only need bear slide wedge subassembly 3's gravity, and the atress is little and stable, can effectively avoid screw 5 fracture after accounting screw 5 atress intensity, eliminates the potential safety hazard.
In a preferred embodiment of the present invention, the upper die holder 1 further includes a support guide 14, and one side of the support guide 14 is connected to the upper die holder main body 11, and the other side is abutted to the cam slider main body 31.
As shown in fig. 1 to 3, the top surface of the support guide 14 is fixed to the upper die base body 11, and the bottom surface of the support guide 14 is made of a material having good wear resistance instead of the upper die base body 11 and the tapered wedge slider body 31, so that the friction force between the upper die base body 11 and the tapered wedge slider body 31 is reduced. When the wedge slider body 31 moves along the inclined surface 211, the lower die holder 2 vertically distributes the force for supporting the wedge slider body 31, so that the wedge slider body 31 abuts against the support guide 14, and the support guide 14 supports the wedge slider body 31.
In a preferred embodiment of the present invention, the reset element 4 is a nitrogen cylinder, a cylinder body of the nitrogen cylinder is connected to the upper die base main body 11, and a cylinder rod of the nitrogen cylinder is connected to the wedge block main body 31.
As shown in fig. 1 to 3, in the process that the upper die base main body 11 with the tapered wedge slider main body 31 descends, the component force of the supporting force of the convex V-shaped guide plate 22 to the tapered wedge slider main body 31 in the horizontal direction pushes the tapered wedge slider main body 31 to move in the horizontal direction, when the pressure generated by the horizontal thrust of the supporting force is greater than the gas pressure in the nitrogen cylinder, the tapered wedge slider main body 31 pushes the cylinder rod of the nitrogen cylinder, the cylinder rod moves to compress the nitrogen gas in the nitrogen cylinder, after the hole punching is completed, the upper die base 1 drives the tapered wedge slider main body 31 to move upwards, the supporting force is reduced, the nitrogen gas in the nitrogen cylinder pushes the cylinder rod to move to the right, and the tapered wedge slider main body 31 resets.
The back-pull side-punching wedge die comprises an upper die holder 1, a lower die holder 2, a wedge sliding block assembly 3 and a resetting piece 4, wherein the upper die holder 1 comprises an upper die holder main body 11 and an extension guide plate 12 arranged on one side of the upper die holder main body 11, a wedge sliding block main body 31 is connected to the upper die holder main body 11, a guide plate sliding surface 311 is arranged on one side, corresponding to the extension guide plate 12, and the extension guide plate 12 is abutted against the guide plate sliding surface 311, so that when the wedge sliding block main body 31 slides along an inclined surface 211, the supporting force of the lower die holder main body 21 on the wedge sliding block main body 31 is directly transmitted to the upper die holder main body 11 through the extension guide plate 12, the rotation problem caused by uneven direct stress on the wedge sliding block main body 31 is avoided, the motion stability of the die is improved, and the punching precision of parts is improved. Due to the addition of the extension guide plate 12, the joint of the wedge slide main body 31 and the upper die base main body 11 can be raised in height, so that the size of the wedge slide main body 31 can be reduced under the condition that the size of the upper die base main body 11 is not increased, the gravity of the wedge slide main body 31 is reduced, and the stress of the screw 5 and the L-shaped cover plate 13 is reduced.
In embodiments of the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific direction, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the embodiments of the present invention.
In the description herein, the appearances of the phrase "one embodiment," "a preferred embodiment," or the like, are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present embodiment by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.
Claims (8)
1. The utility model provides a back-pull side blow slide wedge mould which characterized in that includes:
the die comprises an upper die holder (1), wherein the upper die holder (1) comprises an upper die holder main body (11) and an extension guide plate (12), and the extension guide plate (12) is connected with one side of the upper die holder main body (11);
the lower die holder (2), the said lower die holder (2) is set up with the said upper die base body (11) correspondingly;
the wedge slide block assembly (3) comprises a wedge slide block main body (31) and a punch (32), the wedge slide block main body (31) is connected with the upper die base (1) to drive the wedge slide block main body (31) to move up and down through the upper die base (1), an inclined plane (211) used for guiding the wedge slide block main body (31) is arranged on the lower die base (2), the wedge slide block main body (31) is connected with the lower die base (2) to guide the left and right movement of the wedge slide block main body (31) through the inclined plane (211), and one side of the wedge slide block main body (31) is connected with the punch (32); and
the resetting piece (4) is arranged between the upper die base (1) and the inclined wedge sliding block assembly (3) and used for pushing the inclined wedge sliding block assembly (3) to reset;
the other side of the wedge slide block main body (31) extends outwards to form a guide plate sliding matching surface (311), and the guide plate sliding matching surface (311) is connected with the extension guide plate (12).
2. The reverse-pull side-stamping wedge die according to claim 1, wherein a line between the outer end of the extension guide plate (12) and the lower end of the inclined surface (211) is perpendicular to the inclined surface (211).
3. The reverse-pull side-punching wedge die as claimed in claim 1, wherein the lower die holder (2) comprises a lower die holder main body (21) and a convex V-shaped guide plate (22), the lower die holder main body (21) is arranged corresponding to the upper die holder (1), the inclined plane (211) is arranged on the lower die holder main body (21), the convex V-shaped guide plate (22) is arranged on the inclined plane (211), and the wedge block assembly (3) is in concave-convex connection with the convex V-shaped guide plate (22).
4. A side-punch cam die as claimed in claim 3, wherein said cam slider assembly (3) further comprises a concave V-shaped guide plate (33), said concave V-shaped guide plate (33) being connected to said cam slider body (31), said concave V-shaped guide plate (33) being in concave-convex abutment with said convex V-shaped guide plate (22).
5. The reverse-pull side-punching tapered wedge die according to claim 1, wherein the upper die base (1) further comprises a pair of L-shaped cover plates (13), the L-shaped cover plates (13) are connected with the upper die base main body (11), and the L-shaped cover plates (13) are respectively arranged at two sides of the tapered wedge sliding block main body (31) to clamp the axial sliding of the tapered wedge sliding block main body (31) along the L-shaped cover plates (13).
6. The reverse-pull side-punching wedge die according to claim 5, wherein the L-shaped cover plate (13) is detachably fixed with the upper die holder main body (11) through a screw (5).
7. A back-pull side-punch cam die according to claim 5, characterized in that the upper die holder (1) further comprises a support guide (14), one side of the support guide (14) is connected with the upper die holder body (11) and the opposite side is abutted with the cam slider body (31).
8. The reverse-pull side-punching wedge die according to claim 1, wherein the reset piece (4) is a nitrogen cylinder, a cylinder body of the nitrogen cylinder is connected with the upper die base main body (11), and a cylinder rod of the nitrogen cylinder is connected with the wedge slider main body (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121917612.9U CN216095890U (en) | 2021-08-16 | 2021-08-16 | Reverse-pulling side-punching wedge die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121917612.9U CN216095890U (en) | 2021-08-16 | 2021-08-16 | Reverse-pulling side-punching wedge die |
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| CN216095890U true CN216095890U (en) | 2022-03-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951454A (en) * | 2022-05-16 | 2022-08-30 | 上汽通用五菱汽车股份有限公司 | Rotary wedge structure for die |
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2021
- 2021-08-16 CN CN202121917612.9U patent/CN216095890U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951454A (en) * | 2022-05-16 | 2022-08-30 | 上汽通用五菱汽车股份有限公司 | Rotary wedge structure for die |
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