CN104551268A - Thread machining process of welding air cylinder - Google Patents
Thread machining process of welding air cylinder Download PDFInfo
- Publication number
- CN104551268A CN104551268A CN201510000702.4A CN201510000702A CN104551268A CN 104551268 A CN104551268 A CN 104551268A CN 201510000702 A CN201510000702 A CN 201510000702A CN 104551268 A CN104551268 A CN 104551268A
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- China
- Prior art keywords
- thread
- screw thread
- cylinder
- protecgulum
- cylinder barrel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G2240/00—Details of equipment for threading other than threading tools, details of the threading process
- B23G2240/12—Means for cooling or lubrication
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G2240/00—Details of equipment for threading other than threading tools, details of the threading process
- B23G2240/28—Indication scales
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a thread machining process of a welding air cylinder, relates to a thin-wall part machining process, a thread starting point machining process and thread starting point measurement and aims at the problem that thread starting points of machining welding air cylinder in the prior art are not consistent. A front cover, a cylinder barrel and a rear cover are connected in threaded mode, and it is ensured that the air opening directions of the front cover and the rear cover are located on the same plane after assembly. According to the thread machining process, thread starting point positions and a measurement method of three parts are defined according to the positioning standard. The machined thread starting points of the cylinder barrel, the front cover and the rear cover, machined by means of the thread machining process, are located on the same straight line after being assembled, threaded connecting performance is good, waste caused by matching can be avoided, and assembly efficiency is improved. The thread machining process can be also used for machining of other parts for threaded precise connection. Therefore, numerical control machine tool is used, the thread machining process is suitable for batch machining, machining efficiency and accuracy, clamping accuracy and the like are greatly improved, and accordingly machining cost can be greatly reduced.
Description
Technical field
The present invention relates to the processing of machine industry thin wall component and screw thread process field, particularly a kind of accurate thread connects the Thread Machining Process of the weld cylinder coordinated.
Background technology
Enter the development of 21 century along with domestic automobile industry, increasing Automobile Enterprises constantly starts, industrial robot constantly approve by automobile manufacturing enterprise, the necessary part of Automobile Welding robot work is weld cylinder.This cylinder has been widely used in automobile industry, and country's extensive use of Germany, Japan, the U.S., a lot of auto industry prosperity of Korea S, the demand of cylinder is also rise year by year.
Modern society's rhythm of life growing tension, automobile has become family's necessary article, having about Integral automobile welding is all complete with welding robot, weld cylinder is exactly the professional cylinder used as Integral automobile welding, due between this cylinder end piece with cylinder barrel with being threaded, play the effects such as fit sealing, but due to machine tool uncontrollable, the uniformity of screw thread starting point of processing can not be ensured completely.Solving the general approach of problems is process screw thread to match, and the low and percent defective height of efficiency of assembling is a difficult problem for pneumatic manufacture field always.
Summary of the invention
Processing the inconsistent problem of weld cylinder screw thread starting point to solve in prior art, the invention provides a kind of Thread Machining Process of weld cylinder.
Technical scheme of the present invention is:
A Thread Machining Process for weld cylinder, its processing step is:
1) cylinder barrel groove; At the straight line that the standardized bar of cylinder barrel outer wall is parallel with described cylinder barrel central shaft, this straight line is as position line;
2) cylinder barrel first end screw thread is processed; First locating notch is set on cylinder barrel clamping tool, be positioned at the locating notch on the described position line aligned cylinder cylinder clamping tool of cylinder barrel first end, adopt the G54 coordinate system of lathe that the screw thread starting point of cylinder barrel first end is set, start the M19 instruction of lathe, pin machine tool chief axis, make the clamping of each workpiece on a point, M19 instruction completes aft-loaded airfoil cylinder barrel first end screw thread;
3) cylinder barrel the second end screw thread is processed; Be positioned at the locating notch on the described position line aligned cylinder cylinder clamping tool of cylinder barrel the second end, adopt the G55 coordinate system of lathe that the screw thread starting point of cylinder barrel the second end is set, start the M19 instruction of lathe, pin machine tool chief axis, make the clamping of each workpiece on a point, M19 instruction completes aft-loaded airfoil cylinder barrel the second end screw thread;
4) protecgulum screw thread is processed; Two ears covered in the past are as the positioning datum of protecgulum screw thread process, start the M19 instruction of lathe, pin machine tool chief axis, make the clamping of each workpiece on a point, 1 Z1 is determined in Z-direction, as the machining starting point processing protecgulum screw thread of protecgulum screw thread after M19 instruction completes;
5) bonnet screw thread is processed, the S gas port covered in the rear is attacked the external screw thread of M6 × 0.75, and then process an externally threaded alignment pin in M6 × 0.75, positioning datum using described alignment pin as bonnet screw thread process, with the machine tooling bonnet screw thread of processing protecgulum screw thread, starts the M19 instruction of lathe, pin machine tool chief axis, make the clamping of each workpiece on a point, after M19 instruction completes, determine 1 Z2 in Z-direction, as the machining starting point processing protecgulum screw thread of protecgulum screw thread; Wherein Z2=Z1 ± 0.05;
6) assemble, when assembling first by bonnet and cylinder barrel assembling, then fill protecgulum, after assembling, protecgulum S gas port and bonnet S gas port have seen left-right deviation 4-5mm in rectilinear direction completely; Then be placed in assembling and positioning frock by the cylinder assembled, insert in two ears of protecgulum with torque wrench, by the power of 30 Ns, binding thread makes protecgulum S gas port and the alignment of bonnet S gas port.
Preferably, M52 × 1.25 plug thread gauge is adopted to detect after processing cylinder barrel first end screw thread and cylinder barrel the second end screw thread; Optionally on the rear end cylindrical of M52 × 1.25 plug thread gauge a bit carve the wide line of a 3mm, the wide line of this 3mm is as measurement tolerance, and position line is as measuring basis.
Preferably, after protecgulum screw thread process, the ring screw gauge of M52 × 1.25 is adopted to detect; On the ring screw gauge of M52 × 1.25, the line of an optional stippled 3mm as the measurement tolerance of measurer, and marks protecgulum detection line on ring screw gauge; Using the die sinking line of protecgulum S gas port as measuring basis.
Preferably, after bonnet screw thread process, the ring screw gauge of M52 × 1.25 is adopted to detect; The line that a 3mm is carved in the place of described protecgulum detection line to anticlockwise 122 ° on the ring screw gauge of M52 × 1.25 uses as the measurement tolerance of bonnet, and on ring screw gauge, mark bonnet detection line; Using the die sinking line of bonnet S gas port as measuring basis.
Preferably, machining tolerance is single-piece 5 °, three part fit angle 15 °.
Preferably, the system of process equipment is the system of FANUC-Oi-TC.
Further, the main shaft power of process equipment drives as driven by servomotor.
Preferably, whole process is cold machining process, and uses mineral matter cooling fluid.
Beneficial effect of the present invention is:
The present invention have selected positioning datum, define the screw thread start position of three parts and the measuring method of three parts, adopt the present invention process cylinder barrel, front and rear covers screw thread starting point assembled after point-blank, be threaded functional, the waste product occurred because of apolegamy can be avoided, improve efficiency of assembling.This processing technology also can be used for the part processing that other screw thread precisions connect.Because employing Digit Control Machine Tool processing, being applicable to batch machining, drastically increasing working (machining) efficiency, precision and clamping precision etc., thus can processing cost be greatly reduced.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the process chart of the Thread Machining Process of weld cylinder of the present invention;
Fig. 2 is the main TV structure schematic diagram of cylinder barrel in weld cylinder;
Fig. 3 is the main TV structure schematic diagram of nonstandard M52*1.25 plug thread gauge;
Fig. 4 is the main TV structure schematic diagram of protecgulum in weld cylinder;
Fig. 5 is the left TV structure schematic diagram of protecgulum in weld cylinder;
Fig. 6 is the main TV structure schematic diagram of M52*1.25 ring screw gauge;
Fig. 7 is the left TV structure schematic diagram of M52*1.25 ring screw gauge;
Fig. 8 is the main TV structure schematic diagram of bonnet in weld cylinder;
Fig. 9 is the right TV structure schematic diagram of bonnet in weld cylinder.
Detailed description of the invention
Embodiment 1
The present invention adopt machining tool be Dalian energetically CL-15 type CNC(machine tool system be FANUC-Oi-TC system) Digit Control Machine Tool.Machine tool chief axis power drive is driven by servomotor.Whole process is cold machining process, and uses mineral matter as cooling fluid.
As shown in figs 1-9, the Thread Machining Process of weld cylinder of the present invention, technique concrete steps are:
1) cylinder barrel groove; At the straight line 13 that the standardized bar of cylinder barrel outer wall pencil is parallel with cylinder barrel central shaft, this straight line 13 as position line, simultaneously as measuring basis during measurement.
2) cylinder barrel first end screw thread is processed; First locating notch is set on cylinder barrel clamping tool, be positioned at the locating notch on the position line aligned cylinder cylinder clamping tool of cylinder barrel first end, adopt the G54 coordinate system of lathe that the screw thread starting point 11 of cylinder barrel first end is set, start the M19 instruction of lathe, pin machine tool chief axis, make the clamping of each workpiece on a point, M19 instruction completes aft-loaded airfoil cylinder barrel first end screw thread.A1 indication region in Fig. 2 is seen in the threaded area of first end screw thread.
3) cylinder barrel the second end screw thread is processed; Be positioned at the locating notch on the position line aligned cylinder cylinder clamping tool of cylinder barrel the second end, adopt the G55 coordinate system of lathe that the screw thread starting point 12 of cylinder barrel the second end is set, start the M19 instruction of lathe, pin machine tool chief axis, make the clamping of each workpiece on a point, M19 instruction completes aft-loaded airfoil cylinder barrel the second end screw thread.A2 indication region in Fig. 2 is seen in the threaded area of the second end screw thread.
Two coordinate systems are employed, i.e. G54 first reference coordinate, G55 second reference coordinate when programming.The processing of cylinder barrel is the processing emphasis of whole weld cylinder, because cylinder barrel requires axiality and end face run-out 0.05mm, so the frock of processing is processed in the mode of tension shaft, the cylindrical of tension shaft and the wall thickness of endoporus are very thin, nearly 0.4mm ~ 0.5mm is thick, and front end is a top cover.The tensioner amount of tension shaft is between 0.1mm ~ 0.15mm.Liquid plastics in the middle of pushing up when frock is and is pushed up outward by hydraulic cylinder carrys out tensioner cylinder barrel.
4) protecgulum screw thread is processed; Two ears 33 covered in the past are as the positioning datum of protecgulum screw thread process, start the M19 instruction of lathe, pin machine tool chief axis, make the clamping of each workpiece on a point, determine 1 Z1 in Z-direction after M19 instruction completes, the machining starting point 32 as protecgulum screw thread processes protecgulum screw thread.
5) bonnet screw thread is processed, the S gas port of bonnet is attacked the external screw thread of M6 × 0.75, and then process an externally threaded alignment pin 53 in M6 × 0.75, positioning datum using alignment pin 53 as bonnet screw thread process, with the machine tooling bonnet screw thread of processing protecgulum screw thread, starts the M19 instruction of lathe, pin machine tool chief axis, make the clamping of each workpiece on a point, determine 1 Z2 after M19 instruction completes in Z-direction, the machining starting point 52 as protecgulum screw thread processes protecgulum screw thread; Wherein Z2=Z1 ± 0.05.
6) assemble, when assembling first by bonnet and cylinder barrel assembling, then fill protecgulum, after assembling, protecgulum S gas port and bonnet S gas port have seen left-right deviation 4-5mm in rectilinear direction completely; Then be placed in assembling and positioning frock by the cylinder assembled, insert in two ears of protecgulum with torque wrench, by the power of 30 Ns, binding thread makes protecgulum S gas port and the alignment of bonnet S gas port.
Detect and measure:
1) M52 × 1.25 plug thread gauge (as shown in Figure 3, in figure, B indication region is the threaded portion of this plug thread gauge) is adopted to detect after the cylinder barrel first end screw thread processed and cylinder barrel the second end screw thread; Optionally on the rear end cylindrical of M52 × 1.25 plug thread gauge a bit carve the wide line 21 of a 3mm, as shown in Figure 3, the wide line of this 3mm is as measurement tolerance, and position line is as measuring basis; When measuring with plug thread gauge, the line alignment of the 3mm on the straight line that pencil on cylinder barrel is drawn and plug thread gauge.The cylinder barrel first end screw thread of such processing and cylinder barrel the second end screw thread starting point are at same position.
2) the protecgulum screw thread after completion of processing, adopts the ring screw gauge of M52 × 1.25 to detect; On the ring screw gauge (as shown in Figure 6) of M52 × 1.25, the line of an optional stippled 3mm as the measurement tolerance of measurer, and is designated as protecgulum detection line 41 on doing on ring screw gauge, as shown in Figure 7; Using the die sinking line 31 of protecgulum S gas port as measuring basis, as shown in Figure 4; When measuring with ring screw gauge, the die sinking line 31 of protecgulum S gas port aligns with the protecgulum detection line 41 on ring screw gauge.
3) the bonnet screw thread after completion of processing, adopts the ring screw gauge of M52 × 1.25 to detect; The line that a 3mm is carved in the place of protecgulum detection line to anticlockwise 122 ° on the ring screw gauge of M52 × 1.25 uses as the measurement tolerance of bonnet, and on ring screw gauge, mark bonnet detection line 42; Using the die sinking line 51 of bonnet S gas port as measuring basis.When measuring with ring screw gauge, the die sinking line 51 of bonnet S gas port aligns with the bonnet detection line 42 on ring screw gauge.
Machining tolerance is allowed to be single-piece 5 ° during measurement, three part fit angle 15 °.
Claims (8)
1. a Thread Machining Process for weld cylinder, is characterized in that, its processing step is:
1) cylinder barrel groove; At the straight line that the standardized bar of cylinder barrel outer wall is parallel with described cylinder barrel central shaft, this straight line is as position line;
2) cylinder barrel first end screw thread is processed; First locating notch is set on cylinder barrel clamping tool, be positioned at the locating notch on the described position line aligned cylinder cylinder clamping tool of cylinder barrel first end, adopt the G54 coordinate system of lathe that the screw thread starting point of cylinder barrel first end is set, start the M19 instruction of lathe, pin machine tool chief axis, make the clamping of each workpiece on a point, M19 instruction completes aft-loaded airfoil cylinder barrel first end screw thread;
3) cylinder barrel the second end screw thread is processed; Be positioned at the locating notch on the described position line aligned cylinder cylinder clamping tool of cylinder barrel the second end, adopt the G55 coordinate system of lathe that the screw thread starting point of cylinder barrel the second end is set, start the M19 instruction of lathe, pin machine tool chief axis, make the clamping of each workpiece on a point, M19 instruction completes aft-loaded airfoil cylinder barrel the second end screw thread;
4) protecgulum screw thread is processed; Two ears covered in the past are as the positioning datum of protecgulum screw thread process, start the M19 instruction of lathe, pin machine tool chief axis, make the clamping of each workpiece on a point, 1 Z1 is determined in Z-direction, as the machining starting point processing protecgulum screw thread of protecgulum screw thread after M19 instruction completes;
5) bonnet screw thread is processed, the S gas port covered in the rear is attacked the external screw thread of M6 × 0.75, and then process an externally threaded alignment pin in M6 × 0.75, positioning datum using described alignment pin as bonnet screw thread process, with the machine tooling bonnet screw thread of processing protecgulum screw thread, starts the M19 instruction of lathe, pin machine tool chief axis, make the clamping of each workpiece on a point, after M19 instruction completes, determine 1 Z2 in Z-direction, as the machining starting point processing protecgulum screw thread of protecgulum screw thread; Wherein Z2=Z1 ± 0.05;
6) assemble, when assembling first by bonnet and cylinder barrel assembling, then fill protecgulum, after assembling, protecgulum S gas port and bonnet S gas port have seen left-right deviation 4-5mm in rectilinear direction completely; Then be placed in assembling and positioning frock by the cylinder assembled, insert in two ears of protecgulum with torque wrench, by the power of 30 Ns, binding thread makes protecgulum S gas port and the alignment of bonnet S gas port.
2. the Thread Machining Process of weld cylinder as claimed in claim 1, is characterized in that: adopt M52 × 1.25 plug thread gauge to detect after processing cylinder barrel first end screw thread and cylinder barrel the second end screw thread; Optionally on the rear end cylindrical of M52 × 1.25 plug thread gauge a bit carve the wide line of a 3mm, the wide line of this 3mm is as measurement tolerance, and position line is as measuring basis.
3. the Thread Machining Process of weld cylinder as claimed in claim 1, is characterized in that: after protecgulum screw thread process, adopts the ring screw gauge of M52 × 1.25 to detect; On the ring screw gauge of M52 × 1.25, the line of an optional stippled 3mm as the measurement tolerance of measurer, and marks protecgulum detection line on ring screw gauge; Using the die sinking line of protecgulum S gas port as measuring basis.
4. the Thread Machining Process of weld cylinder as claimed in claim 1, is characterized in that: after bonnet screw thread process, adopts the ring screw gauge of M52 × 1.25 to detect; The line that a 3mm is carved in the place of described protecgulum detection line to anticlockwise 122 ° on the ring screw gauge of M52 × 1.25 uses as the measurement tolerance of bonnet, and on ring screw gauge, mark bonnet detection line; Using the die sinking line of bonnet S gas port as measuring basis.
5. the Thread Machining Process of the weld cylinder as described in any one of claim 1-4, is characterized in that: machining tolerance is single-piece 5 °, three part fit angle 15 °.
6. the Thread Machining Process of weld cylinder as claimed in claim 1, is characterized in that: the system of process equipment is the system of FANUC-Oi-TC.
7. the Thread Machining Process of weld cylinder as claimed in claim 7, is characterized in that: the main shaft power of process equipment drives as driven by servomotor.
8. the Thread Machining Process of weld cylinder as claimed in claim 1, is characterized in that: whole process is cold machining process, and uses mineral matter cooling fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000702.4A CN104551268B (en) | 2015-01-04 | 2015-01-04 | Thread machining process of welding air cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000702.4A CN104551268B (en) | 2015-01-04 | 2015-01-04 | Thread machining process of welding air cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104551268A true CN104551268A (en) | 2015-04-29 |
| CN104551268B CN104551268B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510000702.4A Expired - Fee Related CN104551268B (en) | 2015-01-04 | 2015-01-04 | Thread machining process of welding air cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414683A (en) * | 2015-12-07 | 2016-03-23 | 中国振华集团久达机械厂 | Large-modulus and large-lead thread machining method |
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| US6363598B1 (en) * | 2000-03-07 | 2002-04-02 | Hunting Oilfield Services, In. | Method of assembling pipe joints |
| CN1863983A (en) * | 2003-10-01 | 2006-11-15 | 瓦卢莱克曼内斯曼油气法国公司 | A tubular component provided with mutually oriented threaded elements, and a method for producing it |
| CN102489790A (en) * | 2011-11-29 | 2012-06-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for avoiding pointy edges at head and tail of thread in thread processing |
| CN102489791A (en) * | 2011-11-30 | 2012-06-13 | 兖矿集团有限公司 | Thread machining method for guide sleeve set and lifting jack |
| CN103658875A (en) * | 2013-11-15 | 2014-03-26 | 哈尔滨汽轮机厂有限责任公司 | Machining method for major-diameter inner taper pipe threads of turbine air cylinder steam inlet pipe orifice |
| CN103949759A (en) * | 2014-05-13 | 2014-07-30 | 泰佰亿（山东）工业有限公司 | Built-in welding wire clamping device |
-
2015
- 2015-01-04 CN CN201510000702.4A patent/CN104551268B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6363598B1 (en) * | 2000-03-07 | 2002-04-02 | Hunting Oilfield Services, In. | Method of assembling pipe joints |
| CN1863983A (en) * | 2003-10-01 | 2006-11-15 | 瓦卢莱克曼内斯曼油气法国公司 | A tubular component provided with mutually oriented threaded elements, and a method for producing it |
| CN102489790A (en) * | 2011-11-29 | 2012-06-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for avoiding pointy edges at head and tail of thread in thread processing |
| CN102489791A (en) * | 2011-11-30 | 2012-06-13 | 兖矿集团有限公司 | Thread machining method for guide sleeve set and lifting jack |
| CN103658875A (en) * | 2013-11-15 | 2014-03-26 | 哈尔滨汽轮机厂有限责任公司 | Machining method for major-diameter inner taper pipe threads of turbine air cylinder steam inlet pipe orifice |
| CN103949759A (en) * | 2014-05-13 | 2014-07-30 | 泰佰亿（山东）工业有限公司 | Built-in welding wire clamping device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414683A (en) * | 2015-12-07 | 2016-03-23 | 中国振华集团久达机械厂 | Large-modulus and large-lead thread machining method |
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| CN104551268B (en) | 2017-02-22 |
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