CN105195975A - Method for machining inner surface of cylinder barrel of AGC (automatic gain control) servo cylinder - Google Patents
Method for machining inner surface of cylinder barrel of AGC (automatic gain control) servo cylinder Download PDFInfo
- Publication number
- CN105195975A CN105195975A CN201510511576.9A CN201510511576A CN105195975A CN 105195975 A CN105195975 A CN 105195975A CN 201510511576 A CN201510511576 A CN 201510511576A CN 105195975 A CN105195975 A CN 105195975A
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- China
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- agc
- cylinder barrel
- servobcylinder
- finishing device
- cutter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
- B23P9/04—Treating or finishing by hammering or applying repeated pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
The invention relates to a method for machining an inner surface of a cylinder barrel of an AGC (automatic gain control) servo cylinder, and belongs to the technical field of metal cutting processing. The method comprises the steps: machining the inner surface of the cylinder barrel of the AGC servo cylinder by utilizing a turning lathe and an ultrasonic surface polishing device, and controlling the contact pressure between a cutter and the inner surface of the cylinder barrel of the AGC servo cylinder, the feeding speed of the cutter and the cylinder barrel rotation linear velocity of the AGC servo cylinder according to different materials. After the inner surface is processed, the surface smoothness is improved by three levels, the surface micro hardness is improved by 20 percent, and the surface fatigue resistance can be improved by 200 percent or more.
Description
Technical field
The invention belongs to metal cutting process technology, be specifically related to a kind of processing method of the cylinder barrel inner surface for AGC servoBcylinder.
Background technology
The cylinder barrel inner surface processing of AGC servoBcylinder is higher to Geometrical Tolerance Principle, according to current technological method for processing, must unload workpiece and forward on grinding machine again and carry out Surface Machining after lathe process completes.But forward to when grinding machine is processed, the benchmark when cylinder barrel inner surface of the AGC servoBcylinder after its clamping and lathe clamping is probably inconsistent, Surface Machining tolerance so will be made to be difficult to reach predetermined requirement, had a strong impact on the lumber recovery of workpiece.
Summary of the invention
The present invention is directed to the deficiency existing for processing method of the cylinder barrel inner surface of existing AGC servoBcylinder, provide a kind of process technology method utilizing lathe and the cylinder barrel inner surface of ultrasonic surface finishing device to AGC servoBcylinder to process.
The cylinder barrel inner surface processing method of AGC servoBcylinder of the present invention comprises following steps:
(1) by the cylinder barrel clamping of AGC servoBcylinder on lathe spindle;
(2) be arranged in the holder clamp of lathe by ultrasonic surface finishing device, ensure during clamping that the cutter of ultrasonic surface finishing device is high consistent with the cylinder barrel center of AGC servoBcylinder, axis keeps vertical;
(3) start lathe and open supersonic generator, the cutter of ultrasonic surface finishing device being contacted with the cylinder barrel inner surface of AGC servoBcylinder and setting pressure;
(4) ultrasonic surface skin processing is carried out to AGC servoBcylinder cylinder barrel inner surface, the rotational line speed keeping the cylinder barrel of AGC servoBcylinder is a certain setting speed within the specific limits, the tool feeding speed keeping ultrasonic surface finishing device is a certain constant speed within the specific limits, and the cutter amplitude of adjustment ultrasonic wave finishing device is to zone of reasonableness.
The good effect adopting this invention technology to realize is as follows:
After carrying out ultrasonic wave processing by the cylinder barrel inner surface of above-mentioned technique to AGC servoBcylinder, surface smoothness improves more than 3 grades (roughness Ra value can reach less than 0.1), surface microhardness improves more than 20%, surface fatigue durability improves more than 200%, and the coefficient of friction of metal surface can be reduced, improve abrasion-resistant surface and the corrosion resistance of workpiece.
Detailed description of the invention
The processing method of the cylinder barrel inner surface of AGC servoBcylinder of the present invention specifically comprises following steps.
(1) by the cylinder barrel clamping of AGC servoBcylinder on lathe spindle, during clamping according to inside and outside circle correct, slightly jaw is loosened, prevents cylinder barrel stress deformation with this; The surface roughness Ra value of wherein processed workpiece before ultrasonic wave processing and ultrasonic wave allowance, should meet requirement in table 1 according to material difference.
Table 1
| Material | Roughness requirements (μm) before processing | Ultrasonic wave allowance (mm) |
| Carbon steel | 1.6-6.3 | 0.01-0.04 |
| Cast iron, stainless steel | 1.6-6.3 | 0.01-0.04 |
(2) ultrasonic surface finishing device is arranged in the holder clamp of lathe, ensure during clamping that the cutter of ultrasonic surface finishing device is high consistent with the cylinder barrel center of AGC servoBcylinder, axis keeps vertical, the cutter of ultrasonic surface finishing device stretches out the length of knife rest should be short as far as possible, avoids cutter to produce flexural deformation cause the cylinder barrel inner surface of AGC servoBcylinder to produce coning error with this.
(3) start lathe and open supersonic generator, the cutter of ultrasonic surface finishing device being contacted with the cylinder barrel inner surface of AGC servoBcylinder, and sets the pressure of suitable ultrasonic wave processing cutting tool to the cylinder barrel inner surface of AGC servoBcylinder; According to unlike material, the cutter of ultrasonic surface finishing device is selected by table 2 workpiece applied pressure.
Table 2
| Material | Pressure (N) |
| Carbon steel | 650-4600 |
| Cast iron, stainless steel | 550-3600 |
(4) the cylinder barrel rotational line speed of suitable AGC servoBcylinder and the tool feeding speed of ultrasonic surface finishing device is chosen, ultrasonic surface skin processing is carried out to the cylinder barrel inner surface of AGC servoBcylinder, the linear velocity that the cylinder barrel adding AGC servoBcylinder in man-hour rotates and tool feeding speed, according to unlike material, select by scope listed in table 3.
Table 3
| Material | Linear velocity (m/min) | Feed speed (mm/r) |
| Carbon steel | 20-95 | 0.13-0.65 |
| Cast iron, stainless steel | 12-75 | 0.09-0.55 |
(5) adjust the amplitude of cutter in process by the ultrasonic transformer of ultrasonic surface finishing device, should control within scope listed in table 4 according to its cutter amplitude of unlike material.
Table 4
| Material | Amplitude (μm) |
| Carbon steel | 40-60 |
| Cast iron, stainless steel | 20-40 |
Concrete measurement amplitude by clearance gauge is put into ultrasonic cutter and AGC servoBcylinder cylinder barrel inner surface between, opening supersonic generator makes cutter do ultrasonic vibration, first make the slow feeding of cutter with 1 μm of step pitch Non-follow control again with 10 μm, pin clearance gauge slowly sliding in gap, write down numerical value when sending the sound and just can record amplitude setting when vibration cutting contact clearance gauge surface and whether meet the demands.
(6) if the cylinder barrel inner surface of AGC servoBcylinder does not reach requirement on machining accuracy after single process, can carry out repeating processing until machining accuracy reaches the required precision of the cylinder barrel inner surface of AGC servoBcylinder.
(7), after machining, long feed is stopped knife rest transverse translation, unload the cylinder barrel of AGC servoBcylinder, and finally unload ultrasonic surface finishing device.
The running parameter of above-mentioned ultrasonic surface finishing device is as follows:
Ultrasonic output frequency: 30KHz
Ultrasonic power: 280W
Ultrasonic wave operating temperature: 20 ~ 40 DEG C
Ultrasonic surface finishing device working method: continuous operation
Ultrasonic cutter maximum line velocity: 95m/min
The maximum feed speed of ultrasonic cutter: 0.65mm/r
Ultrasonic surface finishing device process time: 20 ~ 50min.
Claims (4)
1. a processing method for the cylinder barrel inner surface of AGC servoBcylinder, is characterized in that, described method comprises following steps:
(1) by the cylinder barrel clamping of AGC servoBcylinder on lathe spindle;
(2) ultrasonic surface finishing device is arranged in the holder clamp of lathe, ensure during clamping that the cutter of ultrasonic surface finishing device is high consistent with the cylinder barrel center of AGC servoBcylinder, axis keeps vertical, the cutter controlling ultrasonic surface finishing device stretches out the length of knife rest, produces flexural deformation cause the cylinder barrel inner surface of AGC servoBcylinder to produce coning error to avoid cutter;
(3) start lathe and open supersonic generator, the cutter of ultrasonic surface finishing device being contacted with the cylinder barrel inner surface of AGC servoBcylinder and setting pressure;
(4) when ultrasonic surface skin processing being carried out to the cylinder barrel inner surface of AGC servoBcylinder, the rotational line speed keeping the cylinder barrel of AGC servoBcylinder is a certain setting speed within the specific limits, the tool feeding speed keeping ultrasonic surface finishing device is a certain constant speed within the specific limits, and the cutter amplitude of adjustment ultrasonic wave finishing device is to zone of reasonableness.
2. the processing method of the cylinder barrel inner surface of AGC servoBcylinder according to claim 1, it is characterized in that, in step (1), correct according to inside and outside circle during clamping, slightly jaw is loosened, when processed workpiece is carbon steel, cast iron or stainless steel, the surface roughness Ra value before ultrasonic wave processing is 1.6-6.3 μm, and ultrasonic wave allowance is 0.01-0.04mm.
3. the processing method of the cylinder barrel inner surface of AGC servoBcylinder according to claim 1, it is characterized in that, in step (3), when material is carbon steel, the cutter of ultrasonic surface finishing device is 650-4600N to the setting pressure that workpiece applies, when material be cast iron or stainless steel time, the cutter of ultrasonic surface finishing device is 550-3600N to the setting pressure that workpiece applies.
4. the processing method of the cylinder barrel inner surface of AGC servoBcylinder according to claim 1, it is characterized in that, in step (4), the rotational line speed of described maintenance AGC servoBcylinder cylinder barrel refers to when material is carbon steel for a certain setting speed within the specific limits, the cylinder barrel rotational line speed of AGC servoBcylinder should remain within the scope of 20-95m/min gets a setting speed, when material be cast iron or stainless steel time, AGC servoBcylinder cylinder barrel rotational line speed should remain within the scope of 12-75m/min gets a setting speed; The tool feeding speed of described maintenance ultrasonic surface finishing device refers to when material is carbon steel for a certain constant speed within the specific limits, the tool feeding speed of ultrasonic surface finishing device is a certain constant speed within the scope of 0.13-0.65mm/r, when material be cast iron or stainless steel time, the tool feeding speed of ultrasonic surface finishing device is a certain constant speed within the scope of 0.09-0.55mm/r; Cutter amplitude to the zone of reasonableness adjusting ultrasonic wave finishing device in described process refers to that, when material is carbon steel, cutter amplitude range is 40-60 μm, when material be cast iron or stainless steel time, cutter amplitude range is 20-40 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511576.9A CN105195975A (en) | 2015-08-19 | 2015-08-19 | Method for machining inner surface of cylinder barrel of AGC (automatic gain control) servo cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511576.9A CN105195975A (en) | 2015-08-19 | 2015-08-19 | Method for machining inner surface of cylinder barrel of AGC (automatic gain control) servo cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105195975A true CN105195975A (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510511576.9A Pending CN105195975A (en) | 2015-08-19 | 2015-08-19 | Method for machining inner surface of cylinder barrel of AGC (automatic gain control) servo cylinder |
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| Country | Link |
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| CN (1) | CN105195975A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454241A (en) * | 2018-11-02 | 2019-03-12 | 厦门虹鹭钨钼工业有限公司 | A kind of tungsten/molybdenum product ultrasonic surface processing method |
| EP3399057A4 (en) * | 2016-03-08 | 2019-09-11 | Shandong Huawin Electrical & Mechanical Technology Co., Ltd. | Ultrasound enhancing method for prolonging fatigue life of metal workpiece and use thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10328996A (en) * | 1997-06-02 | 1998-12-15 | Fuji Oozx Inc | Workpiece tapered face machining method |
| CN1962137A (en) * | 2006-11-27 | 2007-05-16 | 华南理工大学 | Ultrasonic vibration cutting device used for lathe |
| CN101503755A (en) * | 2009-03-12 | 2009-08-12 | 山东华云机电科技有限公司 | Numerical control supersonic machining apparatus for general lathe |
| CN102806360A (en) * | 2012-08-31 | 2012-12-05 | 赵显华 | Ultrasonic prepositioned one-way vibrating turning method |
| CN103111792A (en) * | 2013-01-28 | 2013-05-22 | 赵显华 | Lathe ultrasonic metal surface machining technology |
-
2015
- 2015-08-19 CN CN201510511576.9A patent/CN105195975A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10328996A (en) * | 1997-06-02 | 1998-12-15 | Fuji Oozx Inc | Workpiece tapered face machining method |
| CN1962137A (en) * | 2006-11-27 | 2007-05-16 | 华南理工大学 | Ultrasonic vibration cutting device used for lathe |
| CN101503755A (en) * | 2009-03-12 | 2009-08-12 | 山东华云机电科技有限公司 | Numerical control supersonic machining apparatus for general lathe |
| CN102806360A (en) * | 2012-08-31 | 2012-12-05 | 赵显华 | Ultrasonic prepositioned one-way vibrating turning method |
| CN103111792A (en) * | 2013-01-28 | 2013-05-22 | 赵显华 | Lathe ultrasonic metal surface machining technology |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3399057A4 (en) * | 2016-03-08 | 2019-09-11 | Shandong Huawin Electrical & Mechanical Technology Co., Ltd. | Ultrasound enhancing method for prolonging fatigue life of metal workpiece and use thereof |
| CN109454241A (en) * | 2018-11-02 | 2019-03-12 | 厦门虹鹭钨钼工业有限公司 | A kind of tungsten/molybdenum product ultrasonic surface processing method |
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Application publication date: 20151230 |
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