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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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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[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
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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...
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