CN220372039U - Fine blanking forming die for compressor partition plate - Google Patents

Abstract

The utility model relates to the technical field of precision dies, in particular to a precision stamping forming die for a compressor partition plate, which comprises an upper die and a lower die, wherein the upper die comprises an upper die plate, an upper base plate, a middle plate, a material pressing plate, a convex die, a force transmission ejector rod, a plurality of punching punches, an upper chamfering punch and an upper ejector rod, and the lower die comprises a lower die plate, a lower base plate, a lower fixing plate, a concave die, a die insert, a counter plate, a plurality of lower ejector rods, a hole trimming punch and a lower chamfering punch, wherein the upper die plate and the lower die plate are used for determining the boundary of the die and providing sufficient supporting strength. In the fine blanking forming die of the compressor partition plate, the flow limit of materials is overcome under the strong action, so that the materials generate plastic shearing deformation, and the profile, the flatness and the chamfer angle of the parts reach ideal states. The fine punching progressive die forming technology is adopted, the material flow limit is overcome, and the material is better utilized, so that the chamfer angle reaches an ideal state. The technical scheme can reduce the processing procedures.

Description

Fine blanking forming die for compressor partition plate

Technical Field

The utility model relates to the technical field of precision dies, in particular to a precision stamping forming die for a compressor partition plate.

Background

The largest characteristics of the compressor partition board are high precision requirement (the contour degree is 0.05), high part flatness requirement (the flatness is 0.05) and a two-sided chamfering forming technology of the outer contour, and the compressor partition board has the characteristics of high precision, high stability and high strength;

however, the traditional process method is to finely punch and blanking, then level and machine chamfer for 2 times, and the traditional method has the defects of multiple working procedures and low production efficiency.

Disclosure of Invention

The utility model aims to provide a fine blanking forming die for a compressor partition plate, which solves the problems that the conventional process method proposed in the background technology is to fine blanking, then leveling and machining a chamfer for 2 times, and the conventional mode has multiple working procedures and low production efficiency.

In order to achieve the above purpose, the utility model provides a fine blanking forming die of a compressor partition plate, which comprises an upper die and a lower die, wherein the upper die comprises an upper die plate, an upper base plate, a middle plate, a material pressing plate, a convex die, a force transmission ejector rod, a plurality of punching punches, an upper chamfering punch and an upper ejector rod, the lower die comprises a lower die plate, a lower base plate, a lower fixing plate, a concave die, a die insert, a counter plate, a plurality of lower ejector rods, a hole trimming punch and a lower chamfering punch, and the upper die plate and the lower die plate are used for determining the boundary of the die and providing sufficient supporting strength.

Preferably, the upper backing plate is arranged on the upper template, and the lower template, the lower backing plate, the lower fixing plate and the female die are connected in sequence.

Preferably, the pressing plate is connected with the middle plate to play a role in guiding, the back pressing plate is used for pressing a product in the forming process and ejecting the product after blanking is completed, and the force transmission ejector rod is used for ejecting the pressing plate to play a role in pressing materials in the blanking process.

Preferably, the punching punch, the upper chamfering punch and the convex-concave die of the upper die are respectively and fixedly connected with the upper backing plate, and respectively play roles of pre-punching, upper chamfering forming and blanking.

Preferably, a lower chamfering punch and a hole trimming punch of the lower die are respectively and fixedly connected with the lower base plate, so that the functions of lower chamfering forming and hole trimming are achieved.

Preferably, still install the guide subassembly between last mould and the lower mould, go up the chamfer drift and include first chamfer drift, special-shaped hole upper chamfer drift, second upper chamfer drift, go up the ejector pin and include a plurality of first upper ejector pins, special-shaped Kong Zhengfan ejector pins, second upper ejector pins, lower ejector pin includes a plurality of first lower ejector pins, second lower ejector pins, lower chamfer drift includes first lower chamfer drift, special-shaped hole lower chamfer drift, second lower chamfer drift, repair the hole drift and include first repair hole drift, special-shaped Kong Xiukong drift, second repair the hole drift.

Preferably, the upper template is provided with a conducting sleeve, and the lower fixing plate is provided with a guide pin.

Compared with the prior art, the utility model has the beneficial effects that:

1. in the fine blanking forming die of the compressor partition plate, by means of a special fine blanking progressive die structure, the flowing limit of materials is overcome under the strong action, and the materials are subjected to plastic shearing deformation, so that the profile degree, the flatness and the chamfer angle of the part are in an ideal state. The fine punching progressive die forming technology is adopted, the material flow limit is overcome, and the material is better utilized, so that the chamfer angle reaches an ideal state. The technical scheme not only can reduce the processing procedures, but also can lead the product to finally meet the requirements of high efficiency, high precision and lower cost.

2. In the fine blanking forming die of the compressor partition plate, a dowel bar is used for applying pressure to a material pressing plate, the material pressing plate and a female die compress materials along with the working of the die, the functions of pre-blanking positioning holes and chamfering hole pressing are realized in the first step, and preparation is made for the next step of positioning and chamfering; the second step realizes the double-sided chamfering function of the holes and the special-shaped holes, and the upper and lower chamfering punches extrude the materials into the holes and the special-shaped holes to obtain target chamfering sizes; and the third step realizes the hole trimming and blanking functions, the hole trimming punch removes redundant materials in the hole from the hole, and the part is separated from the plate under the combined action of the female die, the counter plate and the male die, so that the final forming of the part is realized.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the upper structure of the present utility model;

fig. 3 is a schematic view of the lower structure of the present utility model.

The meaning of each reference sign in the figure is:

101. an upper template; 102. a middle plate; 103. a lower template; 201. a pressing plate; 202. an upper backing plate; 203. a material guiding component; 205. punching a punch; 209. a first upper chamfer punch; 210. chamfering punch head on the special-shaped hole; 211. a second upper chamfer punch; 212. a force transmission ejector rod; 213. a first upper ejector rod; 215. a special-shaped Kong Zhengfan ejector rod; 217. a second upper ejector rod; 219. a male die and a female die; 220. a sleeve; 301. a female die; 302. a lower fixing plate; 303. a lower backing plate; 304. a first lower ejector rod; 312. a first lower chamfer punch; 313. a special-shaped hole lower chamfer punch; 314. a second lower chamfer punch; 315. a guide pin; 316. a first hole trimming punch; 317. a special-shaped Kong Xiukong punch; 318. a second hole trimming punch; 319. a second lower ejector rod; 321. a counter plate; 322. a die insert.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a fine blanking forming die for a compressor partition plate, which comprises an upper die and a lower die, as shown in fig. 1-3, wherein the upper die comprises an upper die plate 101, an upper base plate 202, a middle plate 102, a material pressing plate 201, a convex-concave die 219, a force transmission ejector rod 212, a plurality of punching punches 205, an upper chamfering punch and an upper ejector rod, and the lower die comprises a lower die plate 103, a lower base plate 303, a lower fixing plate 302, a female die 301, a die insert 322, a counter-pressure plate 321, a plurality of lower ejector rods, a hole trimming punch and a lower chamfering punch, and the upper die plate 101 and the lower die plate 103 are used for determining the boundary of the die and providing sufficient supporting strength.

In this embodiment, the upper pad 202 is mounted on the upper template 101, and the lower template 103, the lower pad 303, the lower fixing plate 302, and the female die 301 are sequentially connected, so as to facilitate the assembly and disassembly of each component.

Specifically, the pressing plate 201 is connected with the middle plate 102 to play a role in guiding, the counter plate 321 is used for pressing a product in the forming process and ejecting the product after blanking is completed, and the force transmission ejector rod 212 is used for pushing the pressing plate 201 to play a role in pressing materials in the blanking process.

Further, the punching punch 205, the upper chamfering punch and the male and female die 219 of the upper die are fixedly connected with the upper backing plate 202 respectively, and perform the functions of pre-punching, upper chamfering forming and blanking respectively.

Further, the lower chamfer punch and the hole trimming punch of the lower die are fixedly connected with the lower base plate 303 respectively, so that the functions of lower chamfer forming and hole trimming are achieved.

Further, a guide assembly 203 is further installed between the upper die and the lower die, the guide assembly 203 comprises a guide rod and a round wire spring, the upper chamfering punch comprises a first upper chamfering punch 209, a special-shaped hole upper chamfering punch 210 and a second upper chamfering punch 211, the upper ejector rod comprises a plurality of first upper ejector rods 213, a special-shaped Kong Zhengfan ejector rod 215 and a second upper ejector rod 217, the lower ejector rod comprises a plurality of first lower ejector rods 304 and a second lower ejector rod 319, the lower chamfering punch comprises a first lower chamfering punch 312, a special-shaped hole lower chamfering punch 313 and a second lower chamfering punch 314, and the hole repairing punch comprises a first hole repairing punch 316, a special-shaped Kong Xiukong punch 317 and a second hole repairing punch 318.

Further, the upper die plate 101 is provided with a conductive sleeve 220, and the lower fixing plate 302 is provided with a guide pin 315 for guiding.

When the fine blanking forming die of the compressor partition plate is used, firstly, a fine blanking machine oil cylinder applies pressure to a material pressing plate 201 through a force transmission ejector rod 212, as the operation of the die is carried out, the material pressing plate 201 and a female die 301 press materials, firstly, the functions of pre-blanking a positioning hole and pressing a chamfer angle hole are realized, preparation is carried out for the next positioning and chamfering, the pre-blanking positioning hole is used for guiding a pin 315 to enter the pre-blanking positioning hole, the stepping accuracy of the materials is ensured, the pre-blanking of the chamfer angle hole is carried out through a punching punch 205, the transfer of limited materials is facilitated, the chamfering shape of a part is ensured, secondly, the double-sided chamfering function of the hole and a special-shaped hole is realized, and the upper chamfer punch and the lower chamfer punch press the materials into the hole to flow, so that the chamfering angle meets the requirements, and the target chamfering size is reached; and the third step realizes the hole trimming and blanking functions, the hole trimming punch removes redundant materials in the hole from the hole, and under the combined action of the female die 301, the back pressure plate 321 and the male die 219, the male die 219 separates the part from the plate material, so that the final forming of the part is realized.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a fine blanking forming die of compressor baffle, includes two big subassemblies of last mould and lower mould, its characterized in that: the upper die comprises an upper die plate (101), an upper base plate (202), a middle plate (102), a material pressing plate (201), a convex-concave die (219), a force transmission ejector rod (212) and a plurality of punching punches (205), an upper chamfering punch and an upper ejector rod, the lower die assembly comprises a lower die plate (103), a lower base plate (303), a lower fixing plate (302), a female die (301), a female die insert (322), a back pressure plate (321) and a plurality of lower ejector rods, a hole trimming punch and a lower chamfering punch, and the upper die plate (101) and the lower die plate (103) are used for determining the boundary of the die and providing sufficient supporting strength.

2. The fine blanking die of a compressor diaphragm according to claim 1, characterized in that: the upper base plate (202) is arranged on the upper template (101), and the lower template (103), the lower base plate (303), the lower fixing plate (302) and the female die (301) are connected in sequence.

3. The fine blanking die of a compressor diaphragm according to claim 1, characterized in that: the pressing plate (201) is connected with the middle plate (102), and the force transmission ejector rod (212) is propped against the pressing plate (201).

4. The fine blanking die of a compressor diaphragm according to claim 1, characterized in that: the punching punch (205), the upper chamfering punch and the convex-concave die (219) of the upper die are fixedly connected with the upper backing plate (202) respectively.

5. The fine blanking die of a compressor diaphragm according to claim 1, characterized in that: the lower chamfering punch and the hole trimming punch of the lower die are respectively and fixedly connected with the lower base plate (303).

6. The fine blanking die of a compressor diaphragm according to claim 1, characterized in that: still install guide subassembly (203) between last mould and the lower mould, go up chamfer drift including first upper chamfer drift (209), special-shaped hole upper chamfer drift (210), second upper chamfer drift (211), go up ejector pin and include a plurality of first upper ejector pins (213), special-shaped Kong Zhengfan ejector pins (215), second upper ejector pins (217), lower ejector pins include a plurality of first lower ejector pins (304), second lower ejector pins (319), lower chamfer drift includes first lower chamfer drift (312), special-shaped hole lower chamfer drift (313), second lower chamfer drift (314), repair hole drift includes first repair hole drift (316), special-shaped Kong Xiukong drift (317), second repair hole drift (318).

7. The fine blanking die of a compressor diaphragm according to claim 1, characterized in that: and the upper template (101) is provided with a conducting sleeve (220), and the lower fixing plate (302) is provided with a guide pin (315).