CN104607690A - Machining device and method of deep hole annular oil tank - Google Patents

Machining device and method of deep hole annular oil tank Download PDF

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Publication number
CN104607690A
CN104607690A CN201410531456.0A CN201410531456A CN104607690A CN 104607690 A CN104607690 A CN 104607690A CN 201410531456 A CN201410531456 A CN 201410531456A CN 104607690 A CN104607690 A CN 104607690A
Authority
CN
China
Prior art keywords
oil groove
hole
annular oil
boring bar
workpiece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410531456.0A
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Chinese (zh)
Inventor
汪超
黄继武
魏琴
邹泉
尹解元
程杰
孟东生
曹志勇
陈琳
刘丹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Heavy Industry Casting and Forging Co Ltd
Original Assignee
Wuhan Heavy Industry Casting and Forging Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Heavy Industry Casting and Forging Co Ltd filed Critical Wuhan Heavy Industry Casting and Forging Co Ltd
Priority to CN201410531456.0A priority Critical patent/CN104607690A/en
Publication of CN104607690A publication Critical patent/CN104607690A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B41/00Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B41/02Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring deep holes; Trepanning, e.g. of gun or rifle barrels

Abstract

The invention relates to a machining device and method of a deep hole annular oil tank. According to the device, a boring bar base is fixed to a horizontal numerically-controlled lathe tool rest through a positioning pin and a first bolt, a boring bar is fixed to a hole through a second bolt and a fastening screw, the hole is located in the boring bar base and used for assembling the boring bar, a boring head is in threaded connection with the boring bar, and a lathe tool is installed in a square hole in the boring head and pressed and fixed through a compression screw. According to the machining method, the diameter of an inner hole in the mouth part of a workpiece is large, a center shaft sleeve is manufactured and assembled into the inner hole in the mouth part of the workpiece, the shaft end face of the workpiece faces the tool, the boring bar follows axial feeding of the tool rest, the workpiece rotates, the boring bar conducts axial and radial feeding along with the tool rest, a numerically-controlled machining program is compiled according to a cross-section shape picture of the annular oil tank, and the lathe tool machines the annular oil tank; after machining is finished, tool receding is conducted in radial direction and then in the axial direction. During turning, four-layer cutting is adopted, and finishing machining is conducted at the last tool cutting. The device is simple in structure, convenient and quick to operate, high in flexibility and capable of guaranteeing the shape and dimensional precision of the annular oil tank.

Description

A kind of processing unit (plant) of deep hole annular oil groove and processing method
Technical field
The present invention relates to a kind of processing unit (plant) and processing method of deep hole annular oil groove.
Background technology
The common processing method of deep hole annular oil groove adopts boring machine to utilize radial feeding device to realize the processing of oil groove.
Deep hole annular oil groove is more common on the axial workpieces such as oil cylinder, high especially for the required precision of hydraulic oil pipeline oil groove, for avoiding occurring that stress is concentrated, add and mainly adopt boring machine man-hour, utilize special radial feeding cutting tool, to improve working (machining) efficiency and quality, production cost is high.At present, existing inside holes topping machanism adopts wedge or eccentric to realize radial feed or the adjustment of cutter, its complex structure usually, and mounting and adjusting is more difficult, is difficult to realize disposable porous Continuous maching, inefficiency.Also the radial feeding device utilizing hydraulic system and feed cylinder to realize cutter is had, as the method that CN202684608U announces.Above method all utilizes molding cutter to process, its complex structure, and mounting and adjusting is more difficult, is difficult to the shape and the dimensional accuracy that ensure oil groove, be difficult to meet processing request, and cost is high for the oil groove that required precision is high.
Summary of the invention
The object of the invention is for above-mentioned present situation, aim to provide a kind of processing unit (plant) structure simple, major part is existing apparatus, and its cost is low, the processing unit (plant) of deep hole annular oil groove convenient to operation and processing method.
Implementation of the present invention is, a kind of processing unit (plant) of deep hole annular oil groove, boring bar seat is fixed on horizontal NC lathe knife rest by alignment pin and bolt one, boring bar bolt two and trip bolt are fixed on boring bar seat for assembling in the hole of boring bar, boring head is threaded with boring bar, and lathe tool to be arranged in the square hole on boring head and to press solidly with housing screw.
A processing method for deep hole annular oil groove, is specially:
The endoporus of the processing work of deep hole annular oil groove is stepped hole, and oral area bore dia is greater than the bore dia of oil groove position;
Make central axle sleeve, sleeve outer circle diameter dimension φ D with press workpiece oral area and survey the little 0.01-0.025mm of internal diameter, the outer little 0.01-0.025mm of diameter ratio shaft diameter of bore of central axle sleeve, shaft shoulder outside diameter size φ C 10 ~ 15mm larger than sleeve outer circle diameter dimension φ D, it is identical that inner hole of shaft sleeve diameter dimension φ d and workpiece oil groove positions place diameter of bore survey size φ d1;
Central axle sleeve is assembled in workpiece oral area endoporus, with the tool setting of workpiece spindle end face, a kind of boring bar of processing unit (plant) of deep hole annular oil groove is with knife rest axial feed, in order to point of a knife when preventing axial feed is damaged machining hole wall surface, Lathe tool tip and oil groove place endoporus hole surface radial direction stay 0.1mm gap, stay 0.1mm gap herein, this gap, to damage machining hole wall surface in order to point of a knife when preventing axial feed, lathe tool radially and axial feed, workpiece rotates with lathe spindle, boring bar is with knife rest feeding, according to the cross sectional shape figure of annular oil groove, numerical programming procedure, lathe tool is processed annular oil groove by procedure,
After annular oil groove completion of processing, first by lathe tool radially withdrawing to apart from hole, oil groove place hole surface 2 ~ 3mm, then withdrawing vertically.
Apparatus structure of the present invention is simple, adopts the present invention, convenient to operation, flexibility strong, can ensure shape and the dimensional accuracy of annular oil groove.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention structural representation,
Fig. 2 is deep hole annular oil groove processing plane figure,
Fig. 3 is the partial enlarged drawing of encircled portion in Fig. 2.
Detailed description of the invention
With reference to the accompanying drawings in detail the present invention is described in detail.
With reference to Fig. 1,2,3, the boring bar seat 2 of the processing unit (plant) of deep hole annular oil groove of the present invention is fixed on horizontal NC lathe knife rest 1 by alignment pin 4 and bolt 1, boring bar 10 bolt 26 and trip bolt 5 are fixed on boring bar seat 2 for assembling in the hole of boring bar, boring head 9 is threaded with boring bar 10, and lathe tool 7 is arranged in the square hole on boring head 9 and also presses solidly with housing screw 8.On boring bar seat 2, the center of boring bar pilot hole is high consistent with the machine tool chief axis centre of gyration.
The processing method of deep hole annular oil groove of the present invention, the endoporus of the processing work 11 of deep hole annular oil groove is stepped hole, and oral area bore dia is greater than the bore dia of oil groove position.
For ease of tool setting, specially make central axle sleeve 12, sleeve outer circle diameter dimension φ D joins work by workpiece oral area actual measurement internal diameter size φ D1,0.01-0.025mm less of workpiece oral area actual measurement internal diameter.Ensure the outer little 0.01-0.025mm of diameter ratio shaft diameter of bore of central axle sleeve.Shaft shoulder outside diameter size φ C 10 ~ 15mm larger than sleeve outer circle diameter dimension φ D, it is identical that inner hole of shaft sleeve diameter dimension φ d and workpiece oil groove positions place diameter of bore survey size φ d1.
Central axle sleeve 12 is assembled in workpiece 11 oral area endoporus, the tool setting of central axle sleeve 12 endoporus hole surface is pressed during lathe tool tool setting, with the tool setting of workpiece 11 axial end, a kind of boring bar 10 of processing unit (plant) of deep hole annular oil groove is with knife rest 1 axial feed, according to the axial distance numerical value of oil groove position and workpiece 11 end face, move axially knife rest, lathe tool 7 moves to oil groove position vertically.For preventing point of a knife from scratching hole, oil groove place hole surface, vertically during feed, lathe tool 7 point of a knife and oil groove place endoporus hole surface stay 0.1mm gap.Radially and axial feed, workpiece 11 rotates with lathe spindle lathe tool, and boring bar is with knife rest feeding, and according to the cross sectional shape figure of annular oil groove, the general NC procedure that establishment is conventional, lathe tool is processed annular oil groove by procedure.
For ensureing the radial and axial machining accuracy of annular oil groove and surface roughness, reduce in process due to the longer vibration caused of boring bar overhanging, adopt processing unit (plant) of the present invention, during turning deep hole annular oil groove, adopt layered cutting, be divided into four layers of cutting, divide equally every layer of cutting depth according to the oil groove degree of depth, control cutting depth and cutting speed, before last cutter, stay 0.1-0.2mm skin processing amount, carry out last cutter skin processing.
After deep hole annular oil groove completion of processing during withdrawing, for preventing lathe tool 7 point of a knife from pulling hole surface, first by lathe tool 7 radially withdrawing distance hole, oil groove place hole surface 2 ~ 3mm, then along Z-axis direction withdrawing.The oil groove cross sectional shape processed like this and drawing matching degree high, and oil groove position axial direction distance accuracy high.
Apparatus structure of the present invention is simple, adopts the present invention, convenient to operation, flexibility strong, can ensure shape and the dimensional accuracy of annular oil groove.

Claims (4)

1. the processing unit (plant) of a deep hole annular oil groove, it is characterized in that boring bar seat is fixed on horizontal NC lathe knife rest by alignment pin and bolt one, boring bar bolt two and trip bolt are fixed on boring bar seat for assembling in the hole of boring bar, boring head is threaded with boring bar, and lathe tool to be arranged in the square hole on boring head and to press solidly with housing screw.
2. the processing unit (plant) of a kind of deep hole annular oil groove according to claim 1, is characterized in that the center of the upper boring bar pilot hole of boring bar seat (2) is high consistent with the machine tool chief axis centre of gyration.
3., by the method for the processing unit (plant) deep hole processing annular oil groove of a kind of deep hole annular oil groove according to claim 1, it is characterized in that being specially:
The endoporus of the processing work of deep hole annular oil groove is stepped hole, and oral area bore dia is greater than the bore dia of oil groove position;
Make central axle sleeve, sleeve outer circle diameter dimension φ D with press workpiece oral area and survey the little 0.01-0.025mm of internal diameter, central axle sleeve is the little 0.01-0.025mm of diameter ratio shaft diameter of bore outward; Shaft shoulder outside diameter size φ C 10 ~ 15mm larger than sleeve outer circle diameter dimension φ D, it is identical that inner hole of shaft sleeve diameter dimension φ d and workpiece oil groove positions place diameter of bore survey size φ d1;
Central axle sleeve is assembled in workpiece oral area endoporus, with the tool setting of workpiece spindle end face, a kind of boring bar of processing unit (plant) of deep hole annular oil groove is with knife rest axial feed, in order to point of a knife when preventing axial feed is damaged machining hole wall surface, Lathe tool tip and oil groove place endoporus hole surface radial direction stay 0.1mm gap, stay 0.1mm gap herein, this gap, to damage machining hole wall surface in order to point of a knife when preventing axial feed, lathe tool radially and axial feed, workpiece rotates with lathe spindle, boring bar is with knife rest feeding, according to the cross sectional shape figure of annular oil groove, numerical programming procedure, lathe tool is processed annular oil groove by procedure,
After annular oil groove completion of processing, first by lathe tool radially withdrawing to apart from hole, oil groove place hole surface 2 ~ 3mm, then withdrawing vertically.
4. the method for the processing unit (plant) deep hole processing annular oil groove with a kind of deep hole annular oil groove according to claim 1 according to claim 3, when it is characterized in that turning deep hole annular oil groove, adopt layered cutting, be divided into four layers of cutting, divide equally every layer of cutting depth according to the oil groove degree of depth, control cutting depth and cutting speed, before last cutter, stay 0.1-0.2mm skin processing amount, carry out last cutter skin processing.
CN201410531456.0A 2014-10-11 2014-10-11 Machining device and method of deep hole annular oil tank Pending CN104607690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410531456.0A CN104607690A (en) 2014-10-11 2014-10-11 Machining device and method of deep hole annular oil tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410531456.0A CN104607690A (en) 2014-10-11 2014-10-11 Machining device and method of deep hole annular oil tank

Publications (1)

Publication Number Publication Date
CN104607690A true CN104607690A (en) 2015-05-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410531456.0A Pending CN104607690A (en) 2014-10-11 2014-10-11 Machining device and method of deep hole annular oil tank

Country Status (1)

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CN (1) CN104607690A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105945513A (en) * 2016-05-13 2016-09-21 陕西柴油机重工有限公司 Machining method of deep hole communicating with oil groove
CN109047793A (en) * 2018-07-25 2018-12-21 中国航空工业集团公司西安飞行自动控制研究所 The CNC lathe work of deep annular groove in a kind of aperture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105945513A (en) * 2016-05-13 2016-09-21 陕西柴油机重工有限公司 Machining method of deep hole communicating with oil groove
CN105945513B (en) * 2016-05-13 2018-06-15 陕西柴油机重工有限公司 Connect the processing method of deep hole with oil groove
CN109047793A (en) * 2018-07-25 2018-12-21 中国航空工业集团公司西安飞行自动控制研究所 The CNC lathe work of deep annular groove in a kind of aperture

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Application publication date: 20150513

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