CN103433578B - Overlength helical pitch bull profile spiral tube working method and lathe - Google Patents
Overlength helical pitch bull profile spiral tube working method and lathe Download PDFInfo
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- CN103433578B CN103433578B CN201310383507.5A CN201310383507A CN103433578B CN 103433578 B CN103433578 B CN 103433578B CN 201310383507 A CN201310383507 A CN 201310383507A CN 103433578 B CN103433578 B CN 103433578B
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Abstract
Overlength helical pitch bull profile spiral tube working method belongs to Machining Technology field. The present invention provides a kind of production efficiency height, precision height, avoids the overlength helical pitch bull profile spiral tube working method of tool life and lathe strength problem. The overlength helical pitch bull profile spiral tube working method of the present invention, it is characterised in that: step one, is installed on the special plane head of a bed of lathe by the middle part of spiral tube; Step 2, will be provided with the pull bar of negative electrode dish through spiral tube, and stretches out by the spiral tube the other end; Step 3, invades negative electrode dish, pull bar, spiral tube in electrolytic solution, and jointed anode on the coil; Step 4, starts the main shaft of the special plane head of a bed, and main shaft drives spiral tube to rotate, and meanwhile, is negative electrode dish and anodal closure; Pull pull bar, make negative electrode dish enter in spiral pore; Main shaft drives spiral tube to rotate a circle, and pull bar moves a helical pitch, until overlength helical pitch bull profile spiral tube machines.
Description
Technical field
The invention belongs to Machining Technology field, specifically, the present invention relates to a kind of working method to overlength helical pitch bull profile spiral tube, and the lathe of processing super long helical pitch bull profile spiral tube.
Background technology
Overlength helical pitch bull profile spiral tube, as shown in Figure 3, Figure 4. Being bull in it, the helicoidal surface that many circular arcs are tangent, length big (4170mm, 3600mm or 3000mm), helical pitch length (920mm, 768mm or 738mm), deep hole, inner roughness require to be 3.2, and material is 42CrMo, modified reach HB=285��341, hardness is bigger.
Traditional milling or the method for wire pulling method, extremely difficulty reaches requirement. Due to the degree of depth, the hardness height in hole, cutting wear cannot reach requirement, and a cutter is not covered, and cutter, it is possible to damage, does not reach accuracy requirement. In addition, the strength and stiffness of machine tool system are all difficult to reach requirement, and need repeatedly feed, and production efficiency is low, can not meet the needs of modern production.
Summary of the invention
The present invention is exactly for the problems referred to above, it is provided that a kind of production efficiency height, precision height, avoids the overlength helical pitch bull profile spiral tube working method of tool life and lathe strength problem.
The overlength helical pitch bull profile spiral tube working method of the present invention, it is characterised in that: step one, is installed the middle part of spiral tube on the special plane head of a bed of lathe.
Step 2, will be provided with the pull bar of negative electrode dish through spiral tube, and stretches out by the spiral tube the other end.
Step 3, invades negative electrode dish, pull bar, spiral tube in electrolytic solution, and jointed anode on the coil.
Step 4, starts the main shaft of the special plane head of a bed, and main shaft drives spiral tube to rotate, and meanwhile, is negative electrode dish and anodal closure; Pull pull bar, make negative electrode dish enter in spiral pore; Main shaft drives spiral tube to rotate a circle, and pull bar moves a helical pitch, until overlength helical pitch bull profile spiral tube machines.
The lathe of the processing super long helical pitch bull profile spiral tube of the present invention, comprises the special plane head of a bed, it is characterised in that: the front side of the special plane head of a bed is provided with front chuck, and the rear side of the special plane head of a bed is provided with rear chuck; The special plane head of a bed is arranged on special plane lathe bed, and the rear of special plane lathe bed is provided with rear lathe bed; Being provided with special plane on special plane lathe bed and longitudinally slip plate, special plane longitudinally slips and is provided with mobile support on plate; Longitudinally slipping plate after being provided with on rear lathe bed, rear longitudinally slipping is provided with guiding trestle on plate; Being provided with pull bar in mobile support, the end of pull bar is set to tail rod, and tail rod is arranged in guiding trestle through the special plane head of a bed; It is provided with negative electrode dish in the middle part of described pull bar, described chuck is provided with anode; Between described mobile support and the special plane head of a bed, and it is provided with electrolyte tank between guiding trestle and the special plane head of a bed.
As a kind of preferred version of the lathe of processing super long helical pitch bull profile spiral tube of the present invention, the described special plane head of a bed arranges boring bar cutter head by chuck, by boring bar cutter head, guiding trestle and mobile support are processed.
As another kind of preferred version of the lathe of processing super long helical pitch bull profile spiral tube of the present invention, negative electrode dish is tool-electrode.
The useful effect of the present invention: 1, the present invention is by a machine tool chief axis by tight for card in the middle part of pipe fitting, shortens special plane lathe bed length and pull bar length, makes machine tool structure compact, and reduce lathe cost.
2, a head of a bed two lathe beds, boring bar cutter head can be set on chuck, mobile support and guiding trestle are processed, the concentricity of the special plane head of a bed, mobile support and guiding trestle can be ensured, ensure that pull bar moves steadily reliable, thus reach the object improving overlength helical pitch bull profile spiral tube working accuracy.
3, the lathe of the present invention can realize Vehicle Processing, electrochemical machining and polishing, a machine is multiplex, it is to increase lathe rate of utilization, decreases the input of equipment funds, reduces production cost.
4, the special plane head of a bed both sides of the present invention are provided with chuck, and card tight pipe fitting in two ends is reliable and stable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of negative electrode dish.
Fig. 3 is the structural representation of overlength helical pitch bull profile spiral tube.
Fig. 4 is the side-view of Fig. 3.
In accompanying drawing, 1 is the special plane head of a bed, 2 is special plane lathe bed, 3 is the longitudinal plate that slips of special plane, 4 is front chuck, 5 is rear chuck, 6 under mobile support, 7 on mobile support, 8 is rear lathe bed, 9 slip plate for rear longitudinal direction, 10 is under guiding trestle, 11 is on guiding trestle, 12 is support set, 13 is under rear electrolyte tank, 14 is in rear electrolyte tank, 15 is under front electrolyte tank, 16 is in front electrolyte tank, 17 is motor mandrel, 18 is mobile pull bar, 19 is thick electrode, 20 is half essence electrode, 21 is essence electrode, 22 is insulation covering, 23 is orienting sleeve, 24 is thick electrode supply, 25 is half essence electrode supply, 26 is essence electrode supply, 27 is spiral tube, 28 is anode, 29 for entering electrolytic solution mouth, 30 cut mouth for row, 31 is overflow port.
Embodiment
The overlength helical pitch bull profile spiral tube working method of the present invention, it is characterised in that: step one, is installed the middle part of spiral tube 27 on the special plane head of a bed 1 of lathe.
Step 2, passes spiral tube 27 by the mobile pull bar 18 being provided with negative electrode dish, and stretches out by spiral tube 27 the other end.
Step 3, invades negative electrode dish, mobile pull bar 18, spiral tube 27 in electrolytic solution, and on spiral tube 27 jointed anode 28.
Step 4, starts the main shaft of the special plane head of a bed 1, and main shaft drives spiral tube 27 to rotate, meanwhile, for negative electrode dish and anode 28 are energized; Pull mobile pull bar 18, make negative electrode dish enter in spiral tube 27 hole; Main shaft drives spiral tube 27 to rotate a circle, and mobile pull bar 18 moves a helical pitch, until overlength helical pitch bull profile spiral tube machines.
The lathe of the processing super long helical pitch bull profile spiral tube of the present invention, comprises the special plane head of a bed 1, it is characterised in that: the front side of the special plane head of a bed 1 is provided with front chuck 4, and the rear side of the special plane head of a bed 1 is provided with rear chuck 5; The special plane head of a bed 1 is arranged on special plane lathe bed 2, and the rear of special plane lathe bed 2 is provided with rear lathe bed 8; Being provided with special plane on special plane lathe bed 2 and longitudinally slip plate 3, special plane longitudinally slips and is provided with mobile support on plate 3; Longitudinally slipping plate 9 after being provided with on rear lathe bed 8, rear longitudinally slipping is provided with guiding trestle on plate 9; Being provided with mobile pull bar 18 in mobile support, the end of mobile pull bar 18 is set to tail rod, and tail rod is arranged in guiding trestle through the special plane head of a bed 1; It is provided with negative electrode dish in the middle part of described mobile pull bar 18, described chuck is provided with anode 28; Between described mobile support and the special plane head of a bed 1, and it is provided with electrolyte tank between guiding trestle and the special plane head of a bed 1.
As a kind of preferred version of the lathe of processing super long helical pitch bull profile spiral tube of the present invention, the described special plane head of a bed 1 arranges boring bar cutter head by chuck, by boring bar cutter head, guiding trestle and mobile support are processed.
As another kind of preferred version of the lathe of processing super long helical pitch bull profile spiral tube of the present invention, negative electrode dish is tool-electrode.
Being provided with into electrolytic solution mouth 29 bottom electrolyte tank between described guiding trestle and the special plane head of a bed 1, the electrolyte tank top between mobile support and the special plane head of a bed 1 is provided with overflow port 31, and bottom is provided with row and cuts mouth 30.
Further, described electrolyte tank cuts mouth 30 corresponding to row and is set to inclined-plane.
The described electrolyte tank on front side of the special plane head of a bed 1 is front electrolyte tank, after the special plane head of a bed 1, the electrolyte tank of side is rear electrolyte tank, front electrolyte tank is formed by under in front electrolyte tank 16 and front electrolyte tank 15, rear electrolyte tank is formed by under in rear electrolyte tank 14 and rear electrolyte tank 13, in described front electrolyte tank 16 and rear electrolyte tank on 14 be all set to transparent, whether the spiral tube 27 being convenient to observe in electrolyte tank is covered with electrolyte.
Described negative electrode dish comprises the smart electrode 21 of the thick electrode 19, the same partly essence electrode supply 25 smart electrode 20 of connected half and the same essence motor power 26 that are connected with thick electrode supply 24, is provided with insulation covering 22 between thick electrode 19, partly essence electrode 20 and smart electrode 21.
Described thick electrode 19, half essence electrode 20 and essence electrode 21 are provided with electrolysis fluid apertures.
Described guiding trestle comprises on guiding trestle under 11 and guiding trestle 10, on guiding trestle 11 and guiding trestle under 10 be arranged in support set 12, support set 12 longitudinally slips on plate 9 after being arranged at; Described mobile support is by moving on support 7 and be arranged under mobile support that special plane longitudinally slips on plate 36.
Described mobile pull bar 18 comprises electrode mandrel 17 and orienting sleeve 23, and described thick electrode 19, partly essence electrode 20, essence electrode 21 and insulation covering 22 are arranged between electrode mandrel 17 and orienting sleeve 23.
Embodiment: the lathe of the present invention comprises a special plane head of a bed 1, two lathe beds (special plane lathe bed 2 and rear lathe bed 8), and the special plane head of a bed 1 main side is the special plane lathe bed 2 of 5m length, and special plane lathe bed 2 is equipped with one-level ball screw mandrel.The special plane head of a bed 1 tail end is the rear lathe bed 8 of 3m length, special plane lathe bed 2 is installed the longitudinal plate 3 that slips of special plane, longitudinal plate 9 that slips after installing on rear lathe bed 8, special plane longitudinally slips and mobile support is housed on plate 3, rear longitudinal direction is slipped and guiding trestle is housed on plate 9, mobile support and guiding trestle are convenient to pull mobile pull bar 18 to move, and play centering guide effect.
The special plane head of a bed 1 spindle hole is �� 220mm, and the special plane head of a bed 1 two ends all can fill the chuck of more than �� 400mm, and alignment of shafts height is 500mm, and two top width between centerss are 5000mm, and long feed is 5000mm.
The special plane head of a bed 1 spindle revolutions should have extremely slow revolution, has revolution to be faster respectively again: 4, within 3.5,3,2.5,2,1.5,1 hours, turns around, and screw mandrel is a class precision ball screw mandrel, and helical pitch is respectively: 920mm, 768mm, 738mm.
On special plane lathe bed 2 and rear lathe bed 8, liftable middle open type electrolyte tank is all housed, in front electrolyte tank 16 and rear electrolyte tank on 14 be transparent, it is convenient to observe electrolysis liquid level and foam stream situation, processing spiral tube 27 steeps all the time in electrolytic solution, spiral tube 27 contacts position sealing with electrolyte tank, mobile pull bar 18 with electrolyte tank, ensures that electrolytic solution liquid does not outflow.
The parts that electrolytic solution liquid flows through, spraying rust protection coating, prevents corrosion, and the pump of conveying electrolyte liquid can adopt fluoroplastic pump, was both suitable for, economical again.
Centralized Control: lathe switch, electrode switch, electrolytic solution liquid pump switch, light switch, all concentrate on an operation board, is convenient to workman's operation.
During use, first opening illumination, drive pump, when spiral tube 27 is all steeped more than electrolysis liquid level by electrolytic solution liquid in the electrolyte tank of two ends, opened by motor switch, plying bar lock, start bed switch, starts to process.
During parking, it is reversed.
If the spiral tube processed 27 thinks to improve the surfaceness in spiral tube 27 internal helicoid face again, electrolytic solution and negative electrode dish can be removed, change polishing blade, such as cloth wheel disc, covered with oxidized chrome cream on cloth wheel disc, high-speed rotation, with going to, can make inner surface of pipe fitting roughness reach more than 0.8.
The feature of the present invention: 1, adopting a head of a bed, two ends main shaft chuck for installing, pipe stretches out spindle hole, two ends card pipe, both firm reliable, shorten again main lathe bed and the length of one-level ball screw mandrel, both reduced lathe cost, and shortened the Machine Manufacture cycle again, and reduce lathe floor space.
2, adopting a head of a bed, two lathe beds, main lathe bed end feed is processed, and secondary lathe bed end is lived up and down. Ball screw mandrel, the vertical negative electrode dish slipped on plate, support drive pull bar on main lathe bed move axially. Main shaft (workpiece) turns around, and a helical pitch walked by pull bar, accurately reliable, easy to operate.
3, adopting a head of a bed, two lathe beds, the support hole on main shaft two ends chuck card boring cutter bar and cutter head processing two ends support, makes the alignment of shafts consistent with the center in the support hole on the support of two ends, ensures high concentricity, mobile steadily reliable.
4, horizontal spiral formula electrochemical machining bull profile spiral tube (deep hole) is adopted.
5, employing fills the liftable electrolyte tank of middle open type on the lathe bed of two ends.
It is understandable that, above about the specific descriptions of the present invention, the technical scheme described by the embodiment of the present invention only not it is limited to for illustration of the present invention, it will be understood by those within the art that, still the present invention can be modified or equivalent replace, to reach identical technique effect;Needs are used, all within protection scope of the present invention as long as meeting.
Claims (8)
1. overlength helical pitch bull profile spiral tube working method, it is characterised in that:
Step one, is installed on the head of a bed (1) of lathe by the middle part of spiral tube (27);
Step 2, by be provided with negative electrode dish mobile pull bar (18) through spiral tube (27), and stretch out by spiral tube (27) the other end, the end of mobile pull bar (18) is set to tail rod, and tail rod is arranged in guiding trestle through the head of a bed (1);
Step 3, invades negative electrode dish, mobile pull bar (18), spiral tube (27) in electrolytic solution, and at the upper jointed anode (28) of spiral tube (27);
Step 4, starts the main shaft of the head of a bed (1), and main shaft drives spiral tube (27) to rotate, meanwhile, for negative electrode dish and anode (28) are energized; Pull mobile pull bar (18), make negative electrode dish enter in spiral tube (27) hole; Main shaft drives spiral tube (27) to rotate a circle, and the mobile helical pitch of mobile pull bar (18), until bull profile spiral tube machines.
2. the lathe of processing super long helical pitch bull profile spiral tube, comprises the head of a bed (1), it is characterised in that: the front side of the head of a bed (1) is provided with front chuck (4), and the rear side of the head of a bed (1) is provided with rear chuck (5); The head of a bed (1) is arranged on lathe bed (2), and the rear of lathe bed (2) is provided with rear lathe bed (8); Lathe bed (2) is provided with and longitudinally slips plate (3), longitudinally slip and plate (3) is provided with mobile support; Longitudinally slipping plate (9) after being provided with on rear lathe bed (8), rear longitudinally slipping is provided with guiding trestle on plate (9); Being provided with mobile pull bar (18) in mobile support, the end of mobile pull bar (18) is set to tail rod, and tail rod is arranged in guiding trestle through the head of a bed (1); Described mobile pull bar (18) middle part is provided with negative electrode dish, and described front chuck (4) and rear chuck (5) are provided with anode (28); Between described mobile support and the head of a bed (1), and it is provided with electrolyte tank between guiding trestle and the head of a bed (1);
The described head of a bed (1) arranges boring bar cutter head by front chuck (4) and rear chuck (5), by boring bar cutter head, guiding trestle and mobile support is processed;
Described negative electrode dish is tool-electrode.
3. the lathe of processing super long helical pitch bull profile spiral tube according to claim 2, it is characterized in that: be provided with into electrolytic solution mouth (29) bottom the electrolyte tank between described guiding trestle and the head of a bed (1), electrolyte tank top between mobile support and the head of a bed (1) is provided with overflow port (31), and bottom is provided with row and cuts mouth (30).
4. the lathe of processing super long helical pitch bull profile spiral tube according to claim 3, it is characterised in that: bottom described electrolyte tank, it is positioned at row and cuts mouth (30) place and be set to inclined-plane.
5. the lathe of processing super long helical pitch bull profile spiral tube according to claim 2, it is characterized in that: the electrolyte tank of the described head of a bed (1) front side is front electrolyte tank, the electrolyte tank of the head of a bed (1) side afterwards is rear electrolyte tank, front electrolyte tank by (16) in front electrolyte tank and under front electrolyte tank (15) form, rear electrolyte tank by (14) in rear electrolyte tank and under rear electrolyte tank (13) form, in described front electrolyte tank, in (16) and rear electrolyte tank, (14) are all set to transparent.
6. the lathe of processing super long helical pitch bull profile spiral tube according to claim 2, it is characterized in that: the smart electrode (21) that described negative electrode dish comprises the thick electrode (19) being connected with thick electrode supply (24), half essence electrode (20) that is connected with half essence electrode supply (25) is connected with essence electrode supply (26), is provided with insulation covering (22) between thick electrode (19), half essence electrode (20) and smart electrode (21).
7. the lathe of processing super long helical pitch bull profile spiral tube according to claim 6, it is characterised in that: described thick electrode (19), half essence electrode (20) and essence electrode (21) are provided with electrolysis fluid apertures.
8. the lathe of processing super long helical pitch bull profile spiral tube according to claim 2, it is characterized in that: described guiding trestle comprises on guiding trestle under (11) and guiding trestle (10), on guiding trestle, under (11) and guiding trestle, (10) are arranged in support set (12), and support set (12) longitudinally slips on plate (9) after being arranged at; Described mobile support longitudinally slips (6) under the mobile support on plate (3) by moving on support (7) and be arranged at.
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Families Citing this family (3)
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| CN106808038A (en) * | 2015-12-02 | 2017-06-09 | 财团法人金属工业研究发展中心 | Electrochemical machining apparatus and processing method |
| CN108326383B (en) * | 2018-01-31 | 2019-11-29 | 西安工业大学 | Small-bore deep and long hole electrolytic machining device |
| CN109365930B (en) * | 2018-11-20 | 2020-04-17 | 广东轻工职业技术学院 | Electric spark machining device and method for spatial spiral hole |
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| EP1522366A1 (en) * | 2003-10-09 | 2005-04-13 | Lehr Precision Inc. | Progressive cavity pump / motor stator, and apparatus and method to manufacture same by electrochemical machining |
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| RU1808550C (en) * | 1991-06-14 | 1993-04-15 | Ростовское высшее военное командно-инженерное училище ракетных войск им.Главного Маршала артиллерии Неделина М.И. | Electrochemical machining device |
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| CN1044308A (en) * | 1988-10-25 | 1990-08-01 | 白俄罗斯多科性工艺学院 | The apparatus for electrochemical treatment of goods |
| EP1522366A1 (en) * | 2003-10-09 | 2005-04-13 | Lehr Precision Inc. | Progressive cavity pump / motor stator, and apparatus and method to manufacture same by electrochemical machining |
| CN200995309Y (en) * | 2007-01-22 | 2007-12-26 | 南京农业大学工学院 | Horizontal digital-controlled electrolytic lathe |
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