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Machining methods for inner walls of cylinders with thin-walled small half-blind deep holes and thin-walled small full-blind deep holes

A processing method and deep-hole cylinder technology, which are applied in metal processing equipment, reaming devices, manufacturing tools, etc., can solve the problems of thin-walled semi-blind and fully blind small deep-hole cylinder structure processing methods that are not mentioned, to prevent The effect of poor chip evacuation

Active Publication Date: 2017-10-13
CHANGZHI QINGHUA MACHINERY FACTORY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] In the face of the above processing defects, domestic and foreign studies on the processing methods of thin-walled semi-blind and fully blind small deep hole cylinder structures have not mentioned

Method used

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  • Machining methods for inner walls of cylinders with thin-walled small half-blind deep holes and thin-walled small full-blind deep holes
  • Machining methods for inner walls of cylinders with thin-walled small half-blind deep holes and thin-walled small full-blind deep holes
  • Machining methods for inner walls of cylinders with thin-walled small half-blind deep holes and thin-walled small full-blind deep holes

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] Such as figure 1 , image 3 As shown, a method for processing the inner wall of a thin-walled semi-blind small deep hole cylinder is carried out according to the following steps:

[0091] The first step, centering and alignment of the machining center

[0092] 1) Select the machining center that processes the inner wall of thin-walled semi-blind and fully blind small deep hole cylinders to ensure that the radial runout and axial runout of the spindle of the machining center are both ≤0.01mm;

[0093] 2) The workpiece is fastened with self-centering three claws, and the outer circle of the workpiece is used as the reference for alignment to ensure that the radial runout of the workpiece is ≤0.01mm;

[0094] The second step is to use non-standard hard alloy internal cooling drill to process the bottom hole

[0095] 1) The machining center mills the upper end face of the workpiece;

[0096] 2) Use the φ19.59 short bottom hole drill to process the guide hole with a dept...

Embodiment 2

[0115] Such as figure 2 , Figure 4 As shown, a method for processing the inner wall of a thin-walled semi-blind small deep hole cylinder is carried out according to the following steps:

[0116] The first step, centering and alignment of the machining center

[0117] 1) Select the machining center that processes the inner wall of thin-walled semi-blind and fully blind small deep hole cylinders to ensure that the radial runout and axial runout of the spindle of the machining center are both ≤0.01mm;

[0118] 2) The workpiece is fastened with self-centering three claws, and the outer circle of the workpiece is used as the reference for alignment to ensure that the radial runout of the workpiece is ≤0.01mm;

[0119] The second step is to use non-standard hard alloy internal cooling drill to process the bottom hole

[0120] 1) The machining center mills the upper end face of the workpiece;

[0121] 2) Use the φ11.59 short bottom hole drill to process the guide hole with a de...

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Abstract

The invention discloses machining methods for the inner walls of cylinders with thin-walled small half-blind holes and thin-walled small full-blind deep holes, and belongs to the technical field of machining for small-hole-diameter large-draw-ratio thin-walled half-blind inner holes and full-blind inner holes of structural elements in the field of machining. The process methods can be used for stably and effectively machining the cylinders with the thin-walled small half-blind deep holes and the thin-walled small full-blind deep holes. According to the adopted technical scheme, the machining method for the inner wall of the cylinder with the thin-walled small half-blind deep holes comprises the following steps that firstly, centering and aligning are conducted through a machining center; secondly, a bottom hole is formed through machining by adoption of a non-standard hard alloy inner cooling drill; thirdly, the holes are formed through machining by adoption of a non-standard hard alloy inner cooling reamer; fourthly, the lower end surface of the workpiece is machined; and fifthly, the walls of the holes are subjected to ultrasonic rolling finishing machining. Compared with the machining method for the inner wall of the cylinder with the thin-walled small half-blind deep holes, the fourth step is omitted according to the machining method for the inner wall of the cylinder with the thin-walled small full-blind deep holes. The machining methods provided by the invention are used for machining of the small-hole-diameter large-draw-ratio thin-walled half-blind and full-blind inner holes.

Description

technical field [0001] The invention discloses a method for processing the inner wall of a thin-walled semi-blind and fully blind cylinder with small deep holes, which belongs to the technical field of small-aperture large-length-diameter ratio thin-walled semi-blind and fully blind inner hole processing of structural elements in the field of mechanical processing. Background technique [0002] Typical thin-wall semi-blind and full-blind small deep hole cylinder structures are as follows: figure 1 , figure 2 , image 3 , Figure 4 The structural parameters of the thin-walled cylinder are shown in Table 1. [0003] Table 1 Structural parameters of typical thin-walled semi-blind and fully blind cylinders with small deep holes [0004] [0005] It can be seen from Table 1 that the inner hole is a thin-walled semi-blind small deep hole structure, and the requirements for each group of processing elements are very high, and finishing machining is required. [0006] Accor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23B41/00B23C3/00B23D75/00B23P9/02
CPCB23B41/00B23C3/00B23D75/00B23P9/02B23P15/00
Inventor 王威艾敏李渊刘建信骆新营白桦章国伟张森韩咸武李婵
Owner CHANGZHI QINGHUA MACHINERY FACTORY
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