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CN-224222457-U - Combined notch punching die

CN224222457UCN 224222457 UCN224222457 UCN 224222457UCN-224222457-U

Abstract

The utility model discloses a combined notch punching die which comprises an upper die frame and a lower die frame, wherein an upper die cushion plate is arranged on the end face, close to the lower die frame, of the upper die frame, an upper die fixing plate is arranged on the end face, far away from the upper die frame, of the upper die cushion plate, a male die is arranged on the upper die fixing plate, a through hole penetrating through the upper surface and the lower surface is formed in the male die, a gas channel communicated with the through hole is formed in the upper die cushion plate, a pneumatic quick-connection joint is arranged at the opening part, far away from the through hole, of the gas channel, and gas entering the through hole through the gas channel can be blown out from the opening end, far away from the gas channel, of the through hole. The utility model has simple structure, and can blow out the waste adhered to the end surface of the male die during blanking by matching the through hole and the gas channel, thereby preventing the problem of scrapping of the knife edge caused by the adhesion of the waste to the knife edge of the male die and achieving the effect of removing the knife edge waste.

Inventors

  • ZHANG YULI
  • ZHANG RAN
  • Zhen Tisheng
  • TONG GANG
  • ZHANG QIANG

Assignees

  • 合肥波林新材料股份有限公司

Dates

Publication Date
20260512
Application Date
20250430

Claims (10)

  1. 1. The combined notch punching die comprises an upper die frame and a lower die frame, wherein an upper die cushion plate is arranged on the end face, close to the lower die frame, of the upper die frame, an upper die fixing plate is arranged on the end face, far away from the upper die frame, of the upper die cushion plate, and a male die is arranged on the upper die fixing plate.
  2. 2. The combined notching die of claim 1, wherein the upper die frame is provided with a plurality of first positioning pins, the ends of the plurality of first positioning pins sequentially pass through an upper die base plate and an upper die fixing plate, and the upper die fixing plate is provided with a plurality of first bolts, the ends of which sequentially pass through the upper die fixing plate and the upper die base plate and are in threaded connection with the upper die frame.
  3. 3. The combination notching die of claim 1, wherein the gas passage is provided with internal threads adjacent to the open end of the pneumatic quick connector, and wherein the pneumatic quick connector is adapted to the internal threads of the gas passage.
  4. 4. The combined type notching die of claim 1, wherein the upper die fixing plate is provided with a first groove penetrating through the upper end face and the lower end face of the upper die fixing plate, a male die fixing block matched with the first groove is arranged in the first groove, and a second bolt connecting the male die fixing block with the upper die pad plate is arranged on the male die fixing block.
  5. 5. The combined notch punching die of claim 1, wherein the end face of the lower die frame adjacent to the upper die frame is provided with a lower die base plate, the lower die base plate is provided with a lower die fixing plate, the lower die fixing plate is provided with a second groove penetrating through the upper end face and the lower end face, a die insert matched with the second groove is arranged in the second groove, and a fifth bolt for connecting the die insert with the lower die base plate is arranged on the die insert.
  6. 6. The combined notching die of claim 5, wherein a plurality of third positioning pins are mounted on the lower die frame, the ends of the plurality of third positioning pins sequentially pass through the lower die pad and the lower die fixing plate, and a plurality of fourth bolts are mounted on the lower die fixing plate, sequentially pass through the lower die fixing plate and the lower die pad, and are in threaded connection with the lower die frame.
  7. 7. The combined notching die of claim 6, wherein the end surface of the lower die fixing plate far away from the lower die backing plate is provided with a limit baffle, the limit baffle is connected with the lower die fixing plate through a third bolt, and the limit baffle and the lower die fixing plate are positioned through a second positioning pin.
  8. 8. The combined notch punching die of claim 1, wherein the upper die frame and the lower die frame are connected through a limiting mechanism, the limiting mechanism comprises a guide sleeve arranged on the upper die frame and a guide post arranged on the lower die frame, and the positions of the guide post and the lower die frame correspond to each other.
  9. 9. The combined notching die of claim 1, wherein the two ends of the male die are respectively provided with a first boss and a second boss, wherein the first boss is matched with a third groove formed on the male die fixing block.
  10. 10. The combined type notch punching die of claim 1, further comprising a sliding block arranged on the upper die frame, wherein the sliding block is connected with an electromagnetic valve on the punch press, an air pipe is arranged on the electromagnetic valve, the air pipe comprises an air inlet pipe and an air outlet pipe, the air outlet pipe is connected with a pneumatic quick plug, the sliding block moves along with the upper die frame in the punching process of the upper die frame, the electromagnetic valve is electrified when the sliding block descends to the lowest point, and the electromagnetic valve is powered off when the sliding block ascends to the highest point.

Description

Combined notch punching die Technical Field The utility model relates to the technical field of rolled shaft sleeve processing, in particular to a combined notch punching die. Background The rolled shaft sleeve is a common mechanical transmission part, is generally rolled by bearing materials or plates coated with the bearing materials, and has the advantages of compact structure, strong bearing capacity, convenience in assembly and the like. In practical application, part of manufacturers design square or semicircular notches at the end part of the shaft sleeve according to the requirements of product assembly or lubrication and the like. At present, in small-batch production, a milling processing mode is generally adopted to process a notch after the rolled shaft sleeve is molded. However, the processing mode has lower efficiency, and because the specific angle requirement exists between the notch position and the joint of the shaft sleeve, deviation is easy to occur during manual positioning, so that the qualification rate of products is not high, and in mass production, the mode of preparing the notch by adopting a stamping die is adopted, in addition, in the stamping processing process, the problem that the waste generated during blanking is easy to adhere to the end face of a male die in the conventional die, if the waste is not cleared timely, the waste can be accumulated in a knife edge area, the knife edge is worn or even scrapped, and the service life and the processing precision of the die are directly influenced, so that the need of providing a combined notch stamping die is urgent to solve the problems in the prior art. Disclosure of utility model The utility model aims to provide a combined notch punching die which is used for solving the problems in the background technology. The combined notch punching die comprises an upper die frame and a lower die frame, wherein an upper die pad plate is arranged on the end face, close to the lower die frame, of the upper die frame, an upper die fixing plate is arranged on the end face, far away from the upper die frame, of the upper die pad plate, a male die is arranged on the upper die fixing plate, a through hole penetrating through the upper surface and the lower surface is formed in the male die, a gas channel communicated with the through hole is formed in the upper die pad plate, a pneumatic quick-connection head is arranged at the opening part, far away from the through hole, of the gas channel, and gas entering the through hole through the gas channel can be blown out from the opening end, far away from the gas channel, of the through hole. As a further scheme of the utility model, a plurality of first positioning pins are arranged on the upper die frame, the end parts of the first positioning pins sequentially penetrate through the upper die base plate and the upper die fixing plate, and a plurality of first bolts, the end parts of which sequentially penetrate through the upper die fixing plate and the upper die base plate and are in threaded connection with the upper die frame, are arranged on the upper die fixing plate. As a further scheme of the utility model, the gas channel is provided with internal threads adjacent to the opening end of the pneumatic quick connector, and the pneumatic quick connector is matched with the internal threads of the gas channel. As a further scheme of the utility model, a first groove penetrating through the upper end face and the lower end face of the upper die fixing plate is formed in the upper die fixing plate, a male die fixing block matched with the upper die fixing plate is arranged in the first groove, and a second bolt for connecting the male die fixing block with the upper die cushion plate is arranged on the male die fixing block. As a further scheme of the utility model, the lower die frame is provided with a lower die cushion plate adjacent to the end face of the upper die frame, the lower die cushion plate is provided with a lower die fixing plate, the lower die fixing plate is provided with a second groove penetrating through the upper end face and the lower end face, a die insert matched with the second groove is arranged in the second groove, and a fifth bolt for connecting the die insert with the lower die cushion plate is arranged on the die insert. The lower die frame is provided with a plurality of third positioning pins, the end parts of the third positioning pins sequentially penetrate through the lower die base plate and the lower die fixing plate, and the lower die fixing plate is provided with a plurality of fourth bolts, the end parts of which sequentially penetrate through the lower die fixing plate and the lower die base plate and are in threaded connection with the lower die frame. As a further scheme of the utility model, the end face of the lower die fixing plate far away from the lower die backing plate is provided with a limit baffle, the limit baffle is connected with the lower