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CN-116372222-B - Machining tool and machining process suitable for multi-angle ultra-deep hole parts made of PP (Polypropylene) materials

CN116372222BCN 116372222 BCN116372222 BCN 116372222BCN-116372222-B

Abstract

The invention provides a processing tool and a processing technology for a multi-angle ultra-deep hole part made of a PP material, wherein the processing tool comprises a positioning plate, and the positioning plate is positioned on a workbench of processing equipment; the upper surface of the positioning plate is provided with an assembly plate, the assembly plate and the positioning plate form detachable fixed connection, the lower surface of the assembly plate is provided with an assembly blind rivet, and the assembly blind rivet is matched with the positioning plate. The invention provides a processing tool and a processing technology for a multi-angle ultra-deep hole part made of a PP material, wherein a clamping negative pressure is formed on an assembly plate through a positioning plate, the assembly plate is positioned and fixed through an assembly blind rivet, the position of a product is determined through the negative pressure and a positioning boss, the assembly plate is assembled on a processing table of equipment, the position of the product is adjusted through rotation of the positioning plate, the processing precision of the deep hole is ensured through the processing technology, the deep hole processing is realized through an internal cooling drill bit and graded drilling, and the processing precision and efficiency are improved, so that the multi-angle deep hole processing of the PP material on processing equipment is realized.

Inventors

  • ZHANG KAI

Assignees

  • 苏州市兆丰精密机械有限公司

Dates

Publication Date
20260512
Application Date
20230322

Claims (7)

  1. 1. The tool for machining the PP multi-angle ultra-deep hole part is characterized by comprising a positioning plate, wherein the positioning plate is positioned on a workbench of machining equipment and fixedly connected with the workbench through screws, an assembly plate is arranged on the upper surface of the positioning plate and is fixedly connected with the positioning plate in a detachable mode, an assembly blind rivet is arranged on the lower surface of the assembly plate and is matched with the positioning plate, one end of the interior of the assembly plate is communicated with an air source, and the other end of the assembly blind rivet is connected with an air source to fix a product to be produced under negative pressure; The assembly plate is also provided with a connecting hole which penetrates through the assembly plate and is communicated with the bottom surface of the product, when the assembly blind rivet is ventilated, the bottom surface of the product forms a ventilation space, the product is randomly taken and placed, and when the assembly blind rivet is out of air, the air flow of the connecting hole does not circulate, so that a negative pressure locking product is formed; The positioning plate is provided with a positioning hole which is matched with the assembly blind rivet, the inside of the positioning hole comprises an upper inner hole matched with the positioning section and a lower inner hole matched with the connecting section, the upper inner hole is cylindrical and has an inner diameter matched with the positioning section on the assembly blind rivet to position the assembly plate, and a clamping elastic sheet is arranged in the lower inner hole and is connected with the connecting section of the assembly blind rivet to fix the assembly blind rivet; the positioning plate on be provided with the negative pressure hole, the negative pressure hole run through the positioning plate, upwards extend, with the assembly plate cooperate, outside intercommunication air supply, continuously for the assembly plate provide the negative pressure.
  2. 2. The multi-angle ultra-deep hole part machining tool for the PP material according to claim 1, wherein the connecting section comprises an upper section and a lower section, the upper section is in a conical shape from top to bottom, the lower section is in a conical shape from bottom to top, and the minor diameters of the upper section and the lower section are opposite and fixedly connected.
  3. 3. The multi-angle ultra-deep hole part machining tool for the PP material according to claim 2, wherein the positioning boss is arranged on the assembly plate, protrudes upwards along the surface of the assembly plate and is matched with a product to be machined.
  4. 4. The tooling for machining the multi-angle ultra-deep hole parts made of the PP materials according to claim 1, wherein an air ventilation space matched with the positioning plate is arranged in the assembly plate, the air ventilation space is positioned in the assembly plate and is communicated with the positioning plate, and after the assembly blind rivet is out of air, negative pressure is formed in the air ventilation space to fix the product on the assembly plate.
  5. 5. The tooling for machining the multi-angle ultra-deep hole parts made of the PP material according to claim 1, wherein a plurality of negative pressure holes are formed, the negative pressure holes are distributed on the positioning plates in an array mode and correspond to the assembly plates one by one, connecting pipes are arranged in each negative pressure hole, penetrate through the positioning plates and are matched with the assembly plates, and negative pressure is formed in the assembly plates.
  6. 6. The processing technology of the multi-angle ultra-deep hole part processing tool for the PP material according to any one of claims 1 to 5, wherein the processing technology of the multi-angle ultra-deep hole part processing tool for the PP material is characterized by comprising the following technological processes: firstly, mounting an assembly plate matched with a product on a positioning plate, combining an assembly blind rivet with a positioning hole, and communicating an external air source for ventilation; the second step, the locating plate is arranged on the equipment base and fixedly connected with the equipment base; thirdly, placing the product on the assembly plate, cutting off the air flow of the assembly blind rivet, and locking the product; fourthly, rotating the equipment base to rotate the product to an angle suitable for drilling, wherein the angle is a vertical angle or a horizontal angle; fifthly, carrying out preliminary hole processing on the product, and carrying out preliminary drilling on the product by adopting a drill bit with the length-diameter ratio smaller than 1:5; and sixthly, adopting a drill bit with the length-diameter ratio exceeding 1:10 to carry out secondary processing on the hole, and finishing deep hole processing.
  7. 7. The multi-angle ultra-deep hole part processing technology for PP materials according to claim 6, wherein in the sixth step, the drill adopts an internal cooling mode.

Description

Machining tool and machining process suitable for multi-angle ultra-deep hole parts made of PP (Polypropylene) materials Technical Field The invention relates to a multi-angle ultra-deep hole part machining tool and a machining process suitable for a PP material. Background The existing PP material is used as a base part of a semiconductor part and is widely applied because of the characteristics of high strength and low quality, but the existing PP material does not have the machinability of a metal material because of the material characteristics, cannot be machined by adopting a traditional clamping mode on machining equipment, and is easy to cause the phenomenon of machining cracking, so that the quality of a product is affected. On the basis, a complex structure needs to be processed on equipment, particularly the ultra-deep hole is processed, the aspect ratio of the processed metal piece is 10 times larger than that of the processed metal piece, the processed metal piece can be called as the ultra-deep hole, but the PP material is low in heat resistance and high in material brittleness, the processed metal piece can be regarded as the ultra-deep hole when the processed metal piece exceeds 6-8 times of the aspect ratio, and the semiconductor part is in a small size pursued, so that manufacturers can frequently process the ultra-deep hole with the aspect ratio exceeding 8 times, and the processing diameter is only within 10mm, so that the processing difficulty is increased. The common ultra-deep hole generally cannot be processed by adopting a drill bit in the vertical direction, because the drilling in the vertical direction is a conventional processing means, but drilling scraps cannot be discharged in the processing process due to the size problem of the ultra-deep hole, and the deep drill bit cannot be cooled and cannot be realized due to the problems of a plurality of rows, so that the deep hole drilling can be completed in a drilling mode which is close to the horizontal, the drilling is required to be kept horizontal by the drill bit equipment, and meanwhile, the drilling of the ultra-deep hole is skewed due to horizontal processing, so that the processing difficulty and the clamping difficulty of the product are further increased, and the economic benefit of manufacturers is directly influenced. Disclosure of Invention The technical problem to be solved by the invention is to provide a tool and a process for machining a multi-angle ultra-deep hole part made of PP materials, wherein the tool is used for fixing a product on equipment, so that the product can be clamped and fixed on the equipment, meanwhile, the product is rotated at multiple angles by utilizing a rotating shaft of the equipment to meet deep hole machining, and the process design of deep hole machining is used for solving the difficulty of ultra-deep hole machining in the machining process and realizing machining. The technical scheme includes that the tool and the process for machining the multi-angle ultra-deep hole parts made of the PP material comprise a positioning plate, wherein the positioning plate is located on a workbench of machining equipment and is fixedly connected with the workbench through screws, an assembly plate is arranged on the upper surface of the positioning plate and is fixedly connected with the positioning plate in a detachable mode, an assembly blind rivet is arranged on the lower surface of the assembly plate and is matched with the positioning plate, one end of the interior of the assembly plate is communicated with an air source, negative pressure fixing of a product to be produced is achieved, the assembly blind rivet comprises a positioning section, a connecting section and an air vent, the positioning section is in a cylindrical shape and is matched with the positioning plate, the connecting section is located below the positioning section and is matched with the positioning plate and is fixedly connected with the positioning plate in a detachable mode, and the air vent penetrates through the whole assembly blind rivet and is communicated with the surface of the assembly plate. Further, the connecting section comprises an upper section and a lower section, wherein the upper section is in a conical shape from top to bottom, the lower section is in a conical shape from bottom to top, and the minor diameters of the upper section and the lower section are opposite and fixedly connected. Further, a positioning hole is formed in the positioning plate and matched with the assembly blind rivet, an upper inner hole matched with the positioning section and a lower inner hole matched with the connecting section are formed in the positioning hole, the upper inner hole is cylindrical and matched with the positioning section on the assembly blind rivet in inner diameter to position the assembly plate, a clamping elastic piece is arranged in the lower inner hole and connected with the connecting section of the as