CN217775291U - Fine blanking die structure suitable for common punch press - Google Patents
Fine blanking die structure suitable for common punch press Download PDFInfo
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- CN217775291U CN217775291U CN202220320415.7U CN202220320415U CN217775291U CN 217775291 U CN217775291 U CN 217775291U CN 202220320415 U CN202220320415 U CN 202220320415U CN 217775291 U CN217775291 U CN 217775291U
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Abstract
The application discloses fine blanking die structure suitable for ordinary punch press belongs to stamping die technical field. A fine blanking die structure suitable for a common punch press comprises: the upper die comprises an upper cushion block, an upper die base, an upper base plate, an upper clamping plate, a stop plate and a stripper plate which are sequentially arranged from top to bottom; the lower die comprises a lower die plate, a lower backing plate, a lower back plate, a lower die seat and a lower cushion block which are sequentially arranged from top to bottom; the upper cushion block is provided with a plurality of nitrogen springs, the plurality of nitrogen springs are connected with the upper die base, the upper cushion block is connected with a dowel bar, the upper die base is provided with a piece ejector, the upper clamp plate is provided with a male die punch, and the male die punch is suitable for penetrating through the stop plate and the stripper plate; the lower template is provided with a female die matched with the male die punch. The precision punching machine can solve the problem that the current precision punching machine needs to process in the precision punching machine, does not need a precision punching machine tool, can still ensure the full bright band and the high-precision size of parts only by a common punching machine tool, and can greatly reduce the production cost.
Description
Technical Field
The application relates to the technical field of stamping dies, in particular to a fine stamping die structure suitable for a common punch press.
Background
At present, with the requirements on the machining quality, the precision and the like of parts being higher and higher, a plurality of stamping technologies are developed. Fine blanking is also called fine blanking, and is a fine stamping processing technology developed on the basis of common blanking; the fine blanking is to perform pure shearing separation on the plate material along the required contour in a three-dimensional pressure state on a special press machine through a fine blanking die, so that a precise contour part with smooth and vertical section, good flatness and high precision can be obtained, and the fine blanking can achieve the tightest dimensional precision and flatness tolerance.
The realization of fine blanking requires a fine blanking machine which satisfies several conditions, such as machine tool conditions, die conditions, material conditions and lubrication conditions, wherein three acting forces are necessary to satisfy the machine tool conditions of fine blanking. However, the fine blanking machine has the defects of extremely high purchase cost, long period, high cost, long maintenance time, long training time for production personnel and the like, and needs to be customized in advance. Compared with a common punching machine of a fine punching machine, the fine punching machine has the characteristics of low cost, short maintenance and training time for production personnel, high cost performance and the like. Therefore, the research and development of the fine blanking improved die suitable for the common punch press can be used for punching the fine blanking piece to be punched through the common punch press, and the fine blanking die has important significance.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned problems, the present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the utility model provides a smart towards mould structure suitable for ordinary punch press can break the requirement that the smart dashes and just can accomplish on the smart machine that dashes, makes it also can realize the smart mould towards and can reach part quality, required precision in ordinary punch press, reduction cost that can be very big.
In order to solve the technical problem, the present application is implemented as follows:
the embodiment of the application provides a fine blanking die structure suitable for ordinary punch press, it includes:
the upper die comprises an upper cushion block, an upper die base, an upper base plate, an upper clamping plate, a stop plate and a stripper plate which are sequentially arranged from top to bottom;
the lower die comprises a lower die plate, a lower backing plate, a lower back plate, a lower die seat and a lower cushion block which are sequentially arranged from top to bottom;
the device comprises an upper die base, an upper cushion block, an upper die base, an upper clamping plate, a lower clamping plate, a plurality of ejector rods, a plurality of nitrogen springs, a plurality of dowel bars, a plurality of dowel bar holes, a plurality of ejector rod punches, a plurality of convex die punches and a plurality of stripper plates, wherein one side of the upper cushion block, which is close to the upper die base, is provided with the plurality of nitrogen springs;
the lower template is provided with a female die matched with the male die punch, is positioned below the stripper plate and is matched with the stripper plate to compress parts, and is provided with a limiting column hole through which a limiting column is installed.
In some embodiments, the upper cushion block comprises an upper press-in ring and an upper ejection plate, the upper press-in ring is arranged at the upper end of the upper die holder, and the upper ejection plate is arranged at the lower end of the inner side of the upper press-in ring;
and/or the lower cushion block comprises a lower press-in ring and a lower ejection plate, the lower press-in ring is arranged at the lower end of the lower die holder, and the lower ejection plate is arranged at the upper end of the inner side of the lower press-in ring.
In some embodiments, the upper press-in ring and the upper spring top plate are provided with dowel bar through holes, and the dowel bars are suitable for penetrating through the upper press-in ring and the upper spring top plate through the dowel bar through holes.
In some embodiments, a guide structure is connected between the upper die holder and the lower die plate, and the guide structure consists of a guide pillar and a guide sleeve;
or a guide structure is connected between the upper die holder and the lower die holder and consists of a guide pillar and a guide sleeve.
In some embodiments, the upper die holder, the upper backing plate, the upper clamping plate, the stop plate, the stripper plate, and the lower die plate are provided with guide post holes adapted to guide posts and/or guide sleeve holes adapted to guide sleeves, and the guide posts and the guide sleeves are guided in an axial sliding manner.
In some embodiments, the lower template is provided with a buoyancy lifting material guiding pin hole and a positioning block hole, the buoyancy lifting material guiding pin hole is provided with a buoyancy lifting material guiding pin, and the positioning block hole is provided with a positioning block;
the stripper plate is provided with a floating guide pin avoiding position corresponding to the floating guide pin, and the stripper plate is also provided with a positioning block avoiding position hole corresponding to the positioning block.
In some embodiments, the lower die plate, the lower backing plate, and the lower die base are connected by lift pins.
In some embodiments, the lower backing plate and the lower back plate are respectively provided with a spring hole for a spring to pass through, the spring passes through the spring hole, and two ends of the spring are respectively connected with the lower template and the lower die holder.
In some embodiments, the number of the nitrogen springs is at least four, the left side of the upper cushion block is provided with at least two nitrogen springs, and the right side of the upper cushion block is provided with at least two nitrogen springs.
In some embodiments, the upper mold and the lower mold are made of ASP2053 mold steel.
Implement the technical scheme of the utility model, following beneficial effect has at least:
in this application embodiment, the fine blanking die structure who is applicable to ordinary punch press that provides includes mould and lower mould, and wherein last mould includes from the top down last cushion, upper die base, upper padding plate, punch holder, backstop board that set gradually and takes off the flitch, and the lower mould includes from the top down lower bolster, lower backplate, lower bolster and the lower bolster that sets gradually. Through the connection and the setting of each mechanism in last mould and the lower mould, can realize the mould manufacturing technology of producing high-accuracy part with ordinary punch press, it need not the finish punching lathe only need ordinary punch press still can ensure full bright area and the high accuracy size of part, has solved the present finish punching and must have at the problem of finish punching machine processing, can be when not having the production of finish punching machine, can satisfy full bright area, the diameter of punching a hole is less than the thick and not fragile requirement of material. Therefore, the fine blanking die structure suitable for the common punch press can reduce equipment investment in production, reduces production cost, is safe and reliable, is suitable for all high-precision products, and is convenient to maintain and high in production efficiency.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a fine blanking die structure suitable for a general punch press according to some embodiments of the present invention;
fig. 2 is a schematic perspective view of a fine blanking die structure suitable for a common punch press according to some embodiments of the present invention;
fig. 3 is a schematic structural diagram of another view angle of a fine blanking die structure suitable for a general punch press according to some embodiments of the present invention.
Description of reference numerals:
1-upper mould; 11-upper cushion block; 101-pressing a ring in; 102-upper spring top plate; 12-an upper die holder; 13-upper backing plate; 14-upper clamping plate; 15-a stop plate; 16-a stripper plate;
2-lower mould; 21-a lower template; 22-lower backing plate; 23-a lower back plate; 24-a lower die holder; 25-lower cushion block; 251-pressing down the ring; 252-lower spring top plate;
31-nitrogen spring; 41-dowel bar; 51-a top rod; 61-a male die punch; 71-a guide structure; 81 buoyancy pins.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the present invention, unless stated to the contrary, the use of directional terms such as "upper, lower, left, right" generally refer to the orientation as shown in the drawings or to the orientation of the component itself as being vertical, perpendicular, or gravitational. Similarly, for ease of understanding and description, the definitions of "inner and outer" are consistent with the common definitions of inner and outer, such as "inner and outer" referring to the inner and outer contours of the respective component itself, but the above directional terms are not intended to limit the present invention.
The embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram illustrating a fine blanking die structure suitable for a general punching machine according to some embodiments; FIG. 2 is a schematic perspective view of a fine blanking die structure suitable for a conventional punching machine according to some embodiments; fig. 3 is a schematic structural diagram illustrating another perspective view of a fine blanking die structure suitable for a general punching machine according to some embodiments. In some embodiments of the present application, there is provided a fine blanking die structure suitable for a general punch press, including:
the device comprises an upper die 1, wherein the upper die 1 comprises an upper cushion block 11, an upper die base 12, an upper cushion plate 13, an upper clamping plate 14, a stop plate 15 and a stripper plate 16 which are sequentially arranged from top to bottom;
the lower die 2 comprises a lower die plate 21, a lower backing plate 22, a lower back plate 23, a lower die seat 24 and a lower cushion block 25 which are sequentially arranged from top to bottom;
the nitrogen springs 31 are arranged on one side, close to the upper die holder 12, of the upper cushion block 11, the nitrogen springs 31 are connected with the upper die holder 12, the upper cushion block 11 is connected with a dowel bar 41, the upper die holder 12 is provided with a piece ejector, the piece ejector is provided with at least one ejector rod 51, the lower end of the dowel bar 41 penetrates through the upper cushion block 11 and is connected with the upper end of the ejector rod 51, the upper cushion plate 13 and the upper clamp plate 14 are both provided with ejector rod holes for the ejector rod 51 to penetrate through, the ejector rod 51 is suitable for penetrating through the upper cushion plate 13 and the upper clamp plate 14 through the ejector rod holes, the upper clamp plate 14 is provided with a punch 61, and the punch 61 is suitable for penetrating through the stop plate 15 and the stripper plate 16;
the lower template 21 is provided with a female die matched with the male die punch 61, the lower template 21 is located below the stripper plate 16 and matched with the stripper plate 16 to compress parts, and the lower template 21 is provided with a limiting column hole through which a limiting column is installed.
The fine blanking die structure suitable for ordinary punch press that this embodiment provided can use in the stamping die field, if can be applicable to the automobile parts field of punching production, relate to a mould manufacturing technology that can produce high-accuracy part with ordinary punch press. The fine blanking die structure can realize the production of parts which are full-bright and have the punching diameter smaller than the material thickness and are not easy to damage in a common punch press, the size precision fluctuation of the parts can be controlled to be below 0.05, and the production of the parts of which the collapse angle of a workpiece can be controlled to be 10% from 50% of the area. Therefore, the production mode that the requirement can be still met by adopting a common punch when the product requires a full-bright belt or the requirement on the dimensional accuracy is high without the production of a fine blanking machine can be solved, and the production method has the characteristics of safety, reliability and capability of greatly reducing the cost.
Specifically, the fine blanking die structure suitable for the common punch press comprises an upper die 1 and a lower die 2, wherein the upper die 1 comprises an upper cushion block 11, an upper die base 12, an upper cushion plate 13, an upper clamping plate 14, a stop plate 15 and a stripper plate 16 which are sequentially installed from top to bottom, the lower die 2 comprises a lower die plate 21, a lower cushion plate 22, a lower back plate 23, a lower die base 24 and a lower cushion block 25 which are sequentially installed from top to bottom, and the lower die plate 21 is installed at the lower end of the stripper plate 16. The upper cushion block 11 is provided with a plurality of nitrogen springs 31, the plurality of nitrogen springs 31 are connected with the upper die base 12, the upper cushion block 11 is further provided with a dowel steel 41, the dowel steel 41 penetrates through the upper cushion block 11 and is connected with a mandril 51 of a piece ejector arranged on the upper die base 12, the mandril 51 can penetrate through the upper cushion plate 13 and the upper clamping plate 14 through a mandril hole, the mandril 51 can be connected with a punch 61 arranged on the upper clamping plate 14, and the punch 61 can penetrate through the stop plate 15 and the stripper plate 16. Thus, by the arrangement of the force transmission rod 41, the ejector rod 51, the nitrogen spring 31 (nitrogen cylinder) and the like, at least three forces are acted on the die during use of the die, wherein the three forces comprise punching force (Fs), blank holder force (Fr)/material returning force (Fra) and back pressure (Fg)/ejector force (Fga). The counter pressure (Fg)/the jacking force (Fga) can be provided by a machine tool ejector rod, or the punching waste counter pressure (Fg) can be provided by a small nitrogen cylinder, the material returning force (Fra) can be provided by an upper die striking rod of a press, the blank pressing force (Fr)/the material returning force (Fra) can be provided by the nitrogen cylinder, and the male die striking head 61 can generate downward punching force on the material; thus, through the cooperation of various force sources, the material can be subjected to a pure shearing process. When the material is in a compression state under the dual action of various force sources, the male die punch 61 can generate downward blanking force on the material, the material is blanked along the cavity of the female die, a part product is blanked in a pure shearing mode, the blanking precision is high, the product quality is stable, and the requirement of part stamping on the smoothness can be met.
Therefore, the punching die can be suitable for a common punching machine, has a wide application range, improves the production efficiency, reduces the cost, can enable the material to generate a pure shearing process, and ensures that the section of a product after being punched is smooth; in addition, the adopted nitrogen spring 31 has larger elasticity, more stable work and long service life.
Install spacing post in above-mentioned lower bolster 21, through the setting of spacing post, the mould stable in structure when guaranteeing the compound die, and can not excessive pressure and lead to the mould damage, safe, reliable.
In some embodiments, the number of the nitrogen springs 31 is at least four, at least two nitrogen springs 31 are disposed on the left side of the upper block 11, and at least two nitrogen springs 31 are disposed on the right side of the upper block 11. For example, four nitrogen springs 31 are provided, and two nitrogen springs 31 are provided on the left and right sides of the upper mat 11, respectively. Therefore, the upper die base 12 and the like can be uniformly stressed, a force source required by the die during working is provided, the stability of the whole die during working is ensured, and the stability of a produced product is improved. Further, in other embodiments, the number of the nitrogen springs 31 may also be set to six or more.
In some embodiments, the upper cushion block 11 includes an upper press-in ring 101 and an upper spring top plate 102, the upper press-in ring 101 is disposed at the upper end of the upper die holder 12, and the upper spring top plate 102 is disposed at the inner lower end of the upper press-in ring 101. In some embodiments, the upper press-in ring 101 and the upper pop-up plate 102 are both provided with dowel through holes, and the dowel 41 is adapted to pass through the upper press-in ring 101 and the upper pop-up plate 102 through the dowel through holes.
In the upper mold 1, the upper cushion block 11 may include an upper press-in ring 101 and an upper spring top plate 102, the upper press-in ring 101 and the upper spring top plate 102 are both located at the upper end of the upper mold base 12, and the upper spring top plate 102 is located at the lower end of the inner side of the upper press-in ring 101, that is, the size of the upper spring top plate 102 is smaller than that of the upper press-in ring 101. The nitrogen spring 31 may be provided on the upper press-fitting ring 101, and the upper press-fitting ring 101 may be provided with a nitrogen spring mounting portion.
Further, the number of the dowel bars 41 is plural, that is, the number of the dowel bars 41 is two or more. The upper press-in ring 101 may be provided with a plurality of dowel bar through holes, and the upper ejection plate 102 may also be provided with a plurality of dowel bar through holes. The plurality of dowel bars 41 may pass through the dowel bar through hole of the upper press-in ring 101 and the dowel bar through hole of the upper pop-up plate 102, respectively. In addition, the upper press-in ring 101 may be provided with pin holes, screw through holes, blind hole threads, etc., and the upper pop-up plate 102 may be provided with screw holes, etc., which may be used for fixing or connecting with other structures. The upper press-in ring 101 may also be provided with sleeve or guide bushing through-holes.
In some embodiments, a guiding structure 71 is connected between the upper die holder 12 and the lower die plate 21, and the guiding structure 71 is composed of a guide pillar and a guide sleeve; or, a guide structure 71 is connected between the upper die holder 12 and the lower die holder 24, and the guide structure 71 is composed of a guide pillar and a guide sleeve. The guide post may comprise an outer guide post.
Through the arrangement of the guide structure 71, the accuracy of the upper die holder 12 and the lower die holder 24 in die assembly can be ensured, and die assembly is more convenient; the guide structure 71 can be used to ensure the sliding direction of the upper die holder 12 and the lower die holder 24 when the dies are closed.
In some embodiments, the upper die holder 12, the upper backing plate 13, the upper clamping plate 14, the stop plate 15, the stripper plate 16 and the lower die plate 21 are provided with guide post holes adapted to guide posts and/or guide sleeve holes adapted to guide sleeves, and the guide posts and the guide sleeves are axially slidably guided.
The upper die base 12 may be provided with a ejector mounting portion or ejector pin hole, an outer guide post hole, a sleeve through hole or a guide sleeve through hole, and a blind hole thread, a screw through hole, a screw head through hole, a spring hole, a pin hole, etc. The upper base plate 13 may be provided with a jack rod hole, a sleeve through hole or a guide sleeve through hole, a pin through hole, a screw through hole, and the like. The upper clamp plate 14 may be provided with a pin hole, a sleeve through hole or a guide sleeve through hole, a pin hole, a threaded hole, a special-shaped punching hole or a male die punch mounting portion, and the like. The stopper plate 15 may be provided with a guide post via hole, an outer guide sleeve hole, a punch via hole, a screw hole, a pin hole, and the like. The stripper plate 16 may be provided with a guide post hole, a positioning block avoiding hole, a floating guide pin avoiding position, a pin hole, a screw passing hole, a special-shaped punching hole, and the like.
Through the arrangement of various holes in the upper die base 12, the upper padding plate 13, the upper clamping plate 14, the stop plate 15 and the stripper plate 16, the connection of various mechanisms, the connection of guide structures and the like can be realized, and the device is simple in structure, convenient and practical.
In some embodiments, the lower template 21 is provided with a lift guide pin hole and a positioning block hole, the lift guide pin hole is provided with a lift guide pin, and the positioning block hole is provided with a positioning block;
the stripper plate 16 is provided with a floating guide pin avoiding position corresponding to the floating guide pin, and the stripper plate 16 is further provided with a positioning block avoiding position hole corresponding to the positioning block.
In some embodiments, the lower die plate 21, the lower backing plate 22, the lower backing plate 23, and the lower die bed 24 are connected by lift pins 81.
The lower template 21 is also provided with a guide post hole, a punched block hole, a threaded blind hole, a positioning block hole and the like. The lower backing plate 22 may be provided with lift guide pin spring holes, profile punch holes, and pin via holes, threaded via holes, insert holes, and the like. Wherein the die insert is mounted through an insert hole in the lower backing plate 22. The lower back plate 23 may be provided with lift guide pin spring holes or lift pin holes, as well as pin through holes, threaded through holes, and the like.
The lower die bed 24 may be provided with lift pin holes, outer guide sleeve holes, as well as pin holes, blind hole threads, screw through holes, screw head through holes, and the like.
In some embodiments, each of the lower backing plate 22 and the lower back plate 23 has a spring hole for a spring to pass through, the spring passes through the spring hole, and two ends of the spring are connected to the lower die plate 21 and the lower die base 24 respectively. The spring hole can be a spring hole of a floating material guide pin.
In some embodiments, the lower cushion block 25 includes a lower press-in ring 251 and a lower spring top plate 252, the lower press-in ring 251 is disposed at the lower end of the lower die holder 24, and the lower spring top plate 252 is disposed at the inner upper end of the lower press-in ring 251.
In some embodiments, the upper die 1 and the lower die 2 are made of ASP2053 (powder hard alloy) die steel.
It should be understood that the ASP2053 is an existing material, and the source and specific components thereof are not limited in this embodiment, and any commercially available ASP2053 steel material may be used. In this embodiment, both the female die and the male die can be made of ASP2053 die steel.
Furthermore, in the mould, the punch and die gap may be 0.5% t (stock thickness), where t is the stock thickness, i.e. the thickness of the punch material or the die material.
In conclusion, the full-bright strip and the high-precision size of the part can be ensured only by a common punching machine without a fine punching machine, the problem that the fine punching machine needs to process at present is solved, and the requirements of the full-bright strip, the punching diameter smaller than the material thickness, the damage resistance and the like can be met when the fine punching machine is not used for production. The equipment investment during production can be reduced, the production cost is reduced, and the device is safe and reliable, is suitable for all high-precision products, and in addition, the die is convenient to maintain, and the production efficiency is high.
Those not described in detail in this specification are well within the skill of the art.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a fine blanking die structure suitable for ordinary punch press which characterized in that includes:
the upper die comprises an upper cushion block, an upper die base, an upper base plate, an upper clamping plate, a stop plate and a stripper plate which are sequentially arranged from top to bottom;
the lower die comprises a lower die plate, a lower backing plate, a lower back plate, a lower die seat and a lower cushion block which are sequentially arranged from top to bottom;
the device comprises an upper die base, an upper cushion block, an upper die base, an upper clamping plate, a lower clamping plate, a plurality of ejector rods, a plurality of nitrogen springs, a plurality of dowel bars, a plurality of dowel bar holes, a plurality of ejector rod punches, a plurality of convex die punches and a plurality of stripper plates, wherein one side of the upper cushion block, which is close to the upper die base, is provided with the plurality of nitrogen springs;
the lower template is provided with a female die matched with the male die punch, is positioned below the stripper plate and is matched with the stripper plate to compress parts, and is provided with a limiting column hole through which a limiting column is installed.
2. The fine blanking die structure suitable for the common punching machine according to claim 1, wherein the upper cushion block comprises an upper press-in ring and an upper ejection plate, the upper press-in ring is arranged at the upper end of the upper die holder, and the upper ejection plate is arranged at the lower end of the inner side of the upper press-in ring;
and/or the lower cushion block comprises a lower press-in ring and a lower ejection plate, the lower press-in ring is arranged at the lower end of the lower die holder, and the lower ejection plate is arranged at the upper end of the inner side of the lower press-in ring.
3. The fine blanking die structure suitable for the common punch press according to claim 2, wherein the upper press-in ring and the upper ejection plate are both provided with dowel bar through holes, and the dowel bars are adapted to pass through the upper press-in ring and the upper ejection plate through the dowel bar through holes.
4. The fine blanking die structure suitable for the common punching machine according to claim 1, wherein a guide structure is connected between the upper die holder and the lower die plate, and the guide structure is composed of a guide pillar and a guide sleeve;
or a guide structure is connected between the upper die holder and the lower die holder and consists of a guide pillar and a guide sleeve.
5. The fine blanking die structure suitable for the common punching machine as claimed in claim 4, wherein the upper die holder, the upper backing plate, the upper clamping plate, the stop plate, the stripper plate and the lower die plate are all provided with guide post holes adapted to guide posts and/or guide sleeve holes adapted to guide sleeves, and the guide posts and the guide sleeves are axially slidably guided.
6. The fine blanking die structure suitable for the common punching machine as claimed in claim 1, wherein the lower die plate is provided with a buoyancy lifting material guiding pin hole and a positioning block hole, the buoyancy lifting material guiding pin hole is provided with a buoyancy lifting material guiding pin, and the positioning block hole is provided with a positioning block;
the stripper plate is provided with a floating guide pin avoiding position corresponding to the floating guide pin, and the stripper plate is also provided with a positioning block avoiding position hole corresponding to the positioning block.
7. The fine blanking die structure suitable for the common punching machine as claimed in claim 1, wherein the lower die plate, the lower backing plate, the lower back plate and the lower die base are connected by a lift pin.
8. The fine blanking die structure suitable for the common punching machine as recited in claim 1, wherein the lower backing plate and the lower back plate are respectively provided with a spring hole for a spring to pass through, the spring passes through the spring hole, and two ends of the spring are respectively connected with the lower die plate and the lower die holder.
9. The fine blanking die structure of any one of claims 1 to 8, wherein the number of the nitrogen springs is at least four, the left side of the upper block is provided with at least two nitrogen springs, and the right side of the upper block is provided with at least two nitrogen springs.
10. A fine blanking die structure suitable for a general punch press as claimed in any one of claims 1 to 8, wherein said upper die and said lower die are made of ASP2053 die steel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220320415.7U CN217775291U (en) | 2022-02-17 | 2022-02-17 | Fine blanking die structure suitable for common punch press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220320415.7U CN217775291U (en) | 2022-02-17 | 2022-02-17 | Fine blanking die structure suitable for common punch press |
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| CN217775291U true CN217775291U (en) | 2022-11-11 |
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| CN202220320415.7U Active CN217775291U (en) | 2022-02-17 | 2022-02-17 | Fine blanking die structure suitable for common punch press |
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| CN (1) | CN217775291U (en) |
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- 2022-02-17 CN CN202220320415.7U patent/CN217775291U/en active Active
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