CN114131386B - Numerical control special lathe for efficiently machining multichannel pipe fitting and valve and working method thereof - Google Patents
Numerical control special lathe for efficiently machining multichannel pipe fitting and valve and working method thereof Download PDFInfo
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- CN114131386B CN114131386B CN202111452590.8A CN202111452590A CN114131386B CN 114131386 B CN114131386 B CN 114131386B CN 202111452590 A CN202111452590 A CN 202111452590A CN 114131386 B CN114131386 B CN 114131386B
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- 238000003754 machining Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 79
- 238000004891 communication Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
- B23Q15/22—Control or regulation of position of tool or workpiece
- B23Q15/26—Control or regulation of position of tool or workpiece of angular position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
- B23Q16/02—Indexing equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
- B23Q5/402—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw in which screw or nut can both be driven
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
The invention discloses a numerical control special lathe for efficiently processing multichannel pipe fittings and valves and a working method thereof. The invention has the following advantages and effects: compared with the traditional turret assembly, the double-turret assembly is designed, so that the machining efficiency can be improved, the turret can rotate 360 degrees, the angle of the knife on the same plane can be adjusted by 0-90 degrees, and the special requirement of a workpiece which is difficult to machine on the angle of the knife is met. The hydraulic indexing chuck is designed to be suitable for clamping workpieces with irregular different pipe diameters, the clamping effect is obviously better than that of the traditional chuck for clamping irregular round or cylindrical workpieces, the clamping precision is improved, and the machining precision and the machining quality of the workpieces are also improved.
Description
Technical Field
The invention relates to a numerical control lathe, in particular to a numerical control special lathe for efficiently machining multichannel pipe fittings and valves and a working method thereof.
Background
The machine tool industry in China continuously and rapidly develops to build a complete and independent machine tool industrial system, and the method has great progress in the research and development of medium-high-grade numerical control systems. In recent years, along with the adjustment of economic structures, the contradiction between the industrial structure and market demand of the numerical control machine industry in China is urgent, and the supply side of the numerical control machine is innovated. As a high-grade numerical control machine tool in a ten-major important field, new opportunities and challenges are faced.
Along with the development of the machine manufacturing industry, the demands of users in the machine tool industry on high-speed, high-precision, multi-axis linkage, compound, intelligent and flexible numerical control machine tools are increasingly larger, the common lathe cannot be gradually adapted to the current production demands, and the common lathe is replaced by the numerical control machine tool, but in the machining process of the traditional numerical control machine tool, only one cutter is used for cutting, the problems of low machining efficiency, long machining time, low energy utilization rate and the like exist, and in addition, the improvement of the machining efficiency and the machining precision is limited by the machining limitation and the clamping difficulty of the traditional numerical control machine tool on the demands of machining irregular round or cylindrical workpieces such as multi-channel pipe fittings, valve parts and the like, so the improvement is needed.
Disclosure of Invention
The invention aims to provide a numerical control special lathe for efficiently machining multichannel pipe fittings and valves and a working method thereof, and the lathe has the remarkable characteristics of stronger overall rigidity, higher speed, higher precision, longer service life, more reliability and the like, is particularly suitable for machining contents such as multi-channel turning, boring, drilling, tapping and the like of irregular round or cylindrical workpieces such as multichannel pipe fittings and valve parts by one-time clamping, and is easier to form automatic production so as to solve the problems of machining efficiency, machining precision, service life improvement and reliability in the prior art.
The technical aim of the invention is realized by the following technical scheme: the utility model provides a special lathe of multichannel pipe fitting and valve high-efficient processing numerical control and, includes lathe bed, headstock subassembly, Z axle feed assembly, saddle, X axle feed assembly and double knives tower subassembly, headstock subassembly includes drive assembly, headstock system, hydraulic indexing chuck, and hydraulic indexing chuck sets up on the headstock system, and drive assembly is connected with hydraulic indexing chuck transmission, be equipped with two parallel slide rails on the lathe bed, Z axle feed assembly is including Z axle servo motor, Z axle shaft coupling, the Z axle lead screw that connect gradually, headstock subassembly and Z axle feed assembly are fixed on the lathe bed, the saddle includes slide, carriage and slide, slide and slide sliding seat sliding fit, the slide is fixed on the carriage, still be equipped with the nut on the slide, nut and Z axle lead screw threaded screw fit, X axle feed assembly includes X axle servo motor, X axle shaft coupling, X axle lead screw, X axle feed assembly passes through the slide rail that is equipped with on the carriage and lathe bed, X axle lead screw and screw fit, double knives tower, first and second tower are fixed by first knife tower and second, double knives tower and second are arranged on the tower.
Preferably, the lathe bed is provided with a pair of balancers and a horizontal display, the balancers are in communication connection with the horizontal display, the balancers are connected with a hydraulic system, and the balancers, the horizontal display and the hydraulic system are in communication connection with a control center of the headstock system.
Preferably, one end of the saddle, which is far away from the X-axis servo motor, is also provided with a cutter box.
Preferably, the hydraulic indexing chuck is further provided with a pipe fitting notch, 2 jacking columns, 2 round holes and a hydraulic rod, the 2 jacking columns are just right to be arranged, the hydraulic indexing chuck can be driven by a hydraulic system to stretch out and draw back along the radial direction, the stretching end is positioned in the pipe fitting notch, the hydraulic rod is matched with the round holes and is fixed on the hydraulic indexing chuck, the hydraulic rod is connected with the hydraulic system, the hydraulic rod comprises a first telescopic rod, a second telescopic rod and a third telescopic rod which are coaxially arranged from inside to outside and sequentially increased in diameter, 8 first movable press blocks and 8 first press block tracks are further arranged on the first telescopic rod, 8 second movable press blocks and 8 second press block tracks are further arranged on the second telescopic rod, 8 third movable press blocks and 8 third press block tracks are further arranged on the third telescopic rod, and the first movable press blocks, the second movable press blocks and the third movable press blocks are respectively arranged in the first press block tracks, the second press block tracks and the third press block tracks and can move along the radial direction.
Preferably, the 8 first moving pressing blocks, the 8 second moving pressing blocks and the 8 third moving pressing blocks are uniformly distributed along the respective planes in a circumferential manner, and the sizes of the inner end surfaces and the outer end surfaces of the first moving pressing blocks, the second moving pressing blocks and the third moving pressing blocks along the radial direction are all arc surfaces.
Preferably, the surface curvatures of the first movable pressing block, the second movable pressing block and the third movable pressing block, which are in contact with the inner wall of the pipe, are the same as the curved surface curvatures of the first telescopic rod, the second telescopic rod and the third telescopic rod.
Preferably, the first telescopic rod, the second telescopic rod, the third telescopic rod, the 8 first moving pressing blocks, the 8 second moving pressing blocks and the 8 third moving pressing blocks can independently move under a hydraulic system.
Preferably, when the 8 first movable pressing blocks move to the outermost end of the first pressing block track, the diameter of a circular ring formed on the outer end surface of the first movable pressing blocks is larger than the outer diameter of the first telescopic rod;
When the 8 second movable pressing blocks move to the outermost end of the second pressing block track, the diameter of a circular ring formed on the outer end surface of the second movable pressing blocks is larger than the outer diameter of the second telescopic rod;
when the 8 third movable pressing blocks move to the outermost end of the third pressing block track, the diameter of the ring formed by the outer end surfaces of the 8 third movable pressing blocks is larger than the outer diameter of the third telescopic rod.
Preferably, the first motor is connected with the first tool turret, the second motor is connected with the second tool turret, the first motor and the second motor are respectively connected with a control center of the spindle box system in a communication way through interfaces on the first tool turret and the second tool turret, the first tool turret and the second tool turret can rotate by 360 degrees, and the rotation angle can realize indexing adjustment within 0-90 degrees.
The invention also discloses a working method of the numerical control special lathe for efficiently machining the multichannel pipe fitting and the valve, which comprises the following steps:
(1) Firstly, checking whether the machine tool body is horizontal or not through a horizontal display, and if the machine tool body is in an underhorizontal state, adjusting a balancer through a hydraulic system to enable the machine tool body to be in a horizontal state;
(2) The multichannel pipe fitting is placed into a hydraulic index chuck, a hydraulic system is driven by a control center of a spindle box system to extend a jacking column to the multichannel pipe fitting, and a force is applied;
(3) After the hydraulic rod is tightly propped up, selecting a telescopic rod of the hydraulic rod with the matched diameters according to the diameters of the pipe holes corresponding to the processed multichannel pipe fitting; the hydraulic system is driven by the control center to extend the hydraulic rod into the pipe hole corresponding to the multichannel pipe fitting;
If the diameter of the pipe hole is smaller, the first telescopic rod is selected to extend out and extend into the inner surface of the pipe hole, and the first movable pressing block is driven by the hydraulic system to push to the inner wall of the pipe hole through the first pressing block track to form outward tension at the moment, so that a multichannel pipe fitting to be processed is fixed, and the pushing distance of the first movable pressing block can be controlled by the control center;
if the diameter of the pipe hole is close to that of the second telescopic rod, the second telescopic rod is selected to extend out and extend into the inner surface of the pipe hole, at the moment, the second movable pressing block is driven by the hydraulic system to push to the inner wall of the pipe hole through the second pressing block track to form outward tension, a multichannel pipe fitting to be processed is fixed, and the pushing-out distance of the second movable pressing block can be controlled by the control center; in this case, the first telescopic rod does not extend;
If the diameter of the pipe hole is close to that of the third telescopic rod, the third telescopic rod is selected to extend out and extend into the inner surface of the pipe hole, at the moment, the third movable pressing block is driven by the hydraulic system to push to the inner wall of the pipe hole through the third pressing block track to form outward tension, a multi-channel pipe fitting to be processed is fixed, and the pushing-out distance of the third movable pressing block can be controlled by the control center; in this case, the first telescopic link and the second telescopic link do not extend;
(4) After the workpiece is clamped, the spindle box assembly drives the Z-axis feeding assembly, and the Z-axis feeding assembly stops moving when the spindle box assembly is moved to a preset position due to the fact that the nut is in threaded screw fit with the Z-axis screw rod and the saddle moves towards the direction of the workpiece; at the moment, the sliding plate can slide along the sliding seat by driving the X-axis feeding assembly, and the X-axis feeding assembly stops moving when the sliding plate slides to a preset position;
(5) If the angles of the first turret and the second turret need to be adjusted, the first motor and the second motor can be driven to rotate so that the first turret and the second turret rotate according to the required angles, and the rotation angle can be adjusted between 0 and 90 degrees;
(6) After all adjustment is completed, the spindle box system can be driven to enable the hydraulic index chuck to rotate, and meanwhile, the Z-axis feeding assembly feeds according to a preset track, so that the round hole machining of the multichannel pipe fitting is completed.
In summary, the application has the following beneficial effects: compared with the traditional turret assembly, the double-turret assembly is designed, so that the machining efficiency can be improved, the turret can rotate 360 degrees, the angle of the knife on the same plane can be adjusted by 0-90 degrees, and the special requirement of a workpiece which is difficult to machine on the angle of the knife is met. The hydraulic indexing chuck is designed to be suitable for clamping workpieces with irregular different pipe diameters, the clamping effect is obviously better than that of the traditional chuck for clamping irregular round or cylindrical workpieces, the clamping precision is improved, and the machining precision and the machining quality of the workpieces are also improved. In addition, the application of the horizontal display and the balancer to the machine tool further improves the horizontal precision of the current machine tool body.
Drawings
FIG. 1 is a schematic diagram of a numerical control special lathe for efficiently machining a multi-channel pipe fitting and a valve;
FIG. 2 is a schematic view of the structure of the removed bed of FIG. 1;
FIG. 3 is a schematic view of the saddle assembly of FIG. 2;
FIG. 4 is an enlarged partial schematic view of the X-axis feed assembly of FIG. 1;
FIG. 5 is a schematic view of the turret assembly of FIG. 1;
FIG. 6 is a schematic illustration of the hydraulic index chuck structure of FIG. 1;
Fig. 7 is a schematic view of the hydraulic lever structure of fig. 6.
Reference numerals: 1. a bed body; 2. a headstock assembly; 3. a Z-axis feed assembly; 4. a saddle; 5. an X-axis feeding assembly; 6. a double turret assembly; 11. a slide rail; 12. a balancer; 13. a horizontal display; 21. a drive assembly; 22. a headstock system; 23. a hydraulic index chuck; 31. a Z-axis servo motor; 32. a Z-axis coupler; 33. a Z-axis screw rod; 41. a slide plate; 42. a carriage; 43. a slide; 51. a servo motor; 52. an X-axis coupler; a 53X axis screw; 61. a first turret; 62. a first motor; 63. a second turret; 64. a second motor; 65. an interface; 231. a top column; 232. a round hole; 421. a chute; 431. a nut; 432. a cutter box; 2331. a first telescopic rod; 2332. a second telescopic rod; 2333. a third telescopic rod; 23311. a first moving compact; 23312. a first briquetting track; 23321. a second moving compact; 23322. a second briquetting track; 23331. a third movable pressing block; 23332. a third briquetting track;
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
1-7, A numerical control special lathe for efficiently processing multichannel pipe fittings and valves and a working method thereof are disclosed, wherein the numerical control special lathe comprises a lathe body 1, a spindle box assembly 2, a Z-axis feeding assembly 3, a saddle 4, an X-axis feeding assembly 5 and a double-tool-turret assembly 6, the spindle box assembly 2 comprises a driving assembly 21, a spindle box system 22 and a hydraulic indexing chuck 23 which are sequentially connected, the hydraulic indexing chuck 23 is arranged on the spindle box system 22, and the driving assembly 21 is in transmission connection with the hydraulic indexing chuck 23; the machine tool 1 is provided with two parallel sliding rails 11, the Z-axis feeding assembly 3 comprises a Z-axis servo motor 31, a Z-axis coupler 32 and a Z-axis screw rod 33 which are sequentially connected, the spindle box assembly 2 and the Z-axis feeding assembly 3 are fixed on the machine tool 1, the saddle 4 comprises a sliding plate 41, a carriage 42 and a sliding seat 43, the sliding plate 41 is in sliding fit with the sliding seat 43, the sliding seat 43 is fixed on the carriage 42, the sliding seat 43 is also provided with a nut 431, the nut 431 is in threaded screw fit with the Z-axis screw rod 33, the X-axis feeding assembly 5 comprises an X-axis servo motor 51, an X-axis coupler 52 and an X-axis screw rod 53, the X-axis screw rod 53 is in threaded screw fit with the sliding rail 11 of the machine tool 1 through a sliding groove 421 arranged on the carriage 42, the double-cutter-tower assembly 6 is composed of a first cutter tower 61, a first motor 62, a second cutter tower 63 and a second motor 64 and is symmetrically arranged relative to the Z-axis, and the double-cutter-tower assembly 6 is fixed on the sliding plate 41.
Further, the machine body 1 is provided with a pair of balancers 12 and a horizontal display 13, the balancers 12 are communicated with the horizontal display 13, the balancers 12 are connected with a hydraulic system, the balancers 12, the horizontal display 13 and the hydraulic system are communicated with a control center of a spindle box system 22, the horizontal display 13 can be checked in real time, and the leveling degree of the machine body 1 of the machine tool is ensured by adjusting the balancers 12, so that the machining precision is ensured. The balancer 12 may be a support leg whose height is adjusted by hydraulic pressure, and a plurality of balancers 12 are provided on the bed 1, each balancer 12 being provided with a horizontal display 13. The balancer 12 may be, for example, a hydraulic rod.
Further, a cutter box 432 is further provided on the sliding seat 43 of the saddle 4 at the end far away from the X-axis servo motor 51, and the cutter box 432 can be used for storing processing cutters.
Further, the hydraulic index chuck 23 is further provided with a pipe-shaped notch, 2 jacking columns 231, 2 round holes 232 and a hydraulic rod 233, the 2 jacking columns 231 are arranged right opposite to each other, the 2 jacking columns can stretch out and draw back along the radial direction under the driving of the hydraulic system, the telescopic ends are located in the pipe-shaped notch, the hydraulic rod 233 is matched with the round holes 232 and fixed on the hydraulic index chuck 23, the hydraulic rod 233 is connected with the hydraulic system, the hydraulic rod 233 comprises a first telescopic rod 2331, a second telescopic rod 2332 and a third telescopic rod 2333 which are coaxially arranged from inside to outside and sequentially increased in diameter, 8 first movable press blocks 2331 and 8 first press block tracks 23312 are further arranged on the first telescopic rod 2331, 8 second movable press blocks 23321 and 8 second press block tracks 23322 are further arranged on the second telescopic rod 2332, and 8 third movable press blocks 2331 and 8 third press block tracks 2332 are further arranged on the third telescopic rod 2333, and in the first movable press blocks 2333, the first movable press blocks, the third movable press blocks 2331 and the third movable press blocks 2332 are respectively arranged along the radial direction tracks 2332. The movable pressing block and the pressing block track can relatively move under the drive of the hydraulic system, so that the clamping problem of different pipe hole diameters of the multichannel pipe fitting is solved.
In a specific embodiment of the present invention, the 8 first moving pressing blocks 23311, the 8 second moving pressing blocks 23321 and the 8 third moving pressing blocks 2331 are all uniformly distributed along the respective planes in a circumferential manner, and the inner end surfaces and the outer end surfaces of the first moving pressing blocks 23311, the second moving pressing blocks 23321 and the third moving pressing blocks 2331 in the radial direction are all circular arc surfaces.
In one embodiment of the present invention, the curvature of the surfaces of the first moving press block 23311, the second moving press block 23321 and the third moving press block 2331 contacting the inner wall of the pipe is the same as the curvature of the curved surfaces of the first telescopic rod 2331, the second telescopic rod 2332 and the third telescopic rod 2333.
In one embodiment of the present invention, the first, second, third and 8 first, second and third movable rams 2331, 2333 are independently movable under a hydraulic system.
In one embodiment of the present invention, when the 8 first moving compacts 23311 move to the outermost end of the first compact track 23312, the outer end surface of the first moving compact track has a circular ring with a diameter larger than the outer diameter of the first telescopic rod 2331; so that the first moving press block 311 can support the inner wall surface of the pipe fitting with the diameter slightly larger than that of the first telescopic rod 31;
When the 8 second movable press blocks 23321 move to the outermost end of the second press block track 23322, the diameter of a circular ring formed on the outer end surface of the second movable press block is larger than the outer diameter of the second telescopic rod 2332; so that the second moving press block 321 can support the inner wall surface of the pipe fitting with the diameter slightly larger than that of the second telescopic rod 32;
When the 8 third movable pressing blocks 331 move to the outermost end of the third pressing block track 2332, the diameter of the ring formed by the outer end surface of the third movable pressing blocks is larger than the outer diameter of the third telescopic rod 2333; so that the third moving pressing block 331 can support the inner wall surface of the pipe member having a diameter slightly larger than that of the third telescopic link 33.
Further, the first motor 62 is connected with the first turret 61, the second motor 64 is connected with the second turret 63, the first motor 62 and the second motor 64 are respectively communicated with the control center of the spindle box system 22 through interfaces 65 on the first turret 61 and the second turret 63, the first turret 61 and the second turret 63 can rotate by 360 degrees, the rotation angle can be adjusted within 0-90 degrees, and the special requirements of the existing irregular parts on the cutter angle are met.
The working method of the numerical control special lathe for efficiently machining the multichannel pipe fitting and the valve is introduced as follows:
(1) Firstly, whether the machine tool body 1 is horizontal or not is checked through a horizontal display 13, and if the machine tool body 1 is in an underhorizontal state, the balancer 12 is adjusted through a hydraulic system to enable the machine tool body 1 to be in a horizontal state.
(2) The multichannel tube is placed in the hydraulic index chuck 23 and the hydraulic system is driven by the control center of the headstock system 22 to extend the top column 231 toward the multichannel tube and apply a force.
(3) After the hydraulic rod 233 is tightly supported, the hydraulic system is driven by the control center to extend the hydraulic rod 233 into the pipe hole corresponding to the multichannel pipe fitting, and before the hydraulic rod 233 acts, the telescopic rod of the hydraulic rod 233 with the matched diameter is selected according to the diameter of the pipe hole corresponding to the processed multichannel pipe fitting.
(4) If the diameter of the pipe hole is smaller, the first telescopic rod 2331 is selected to extend out and extend into the inner surface of the pipe hole, and the diameter of the first telescopic rod 2331 is smaller than that of the pipe hole, at the moment, the first movable pressing block 23311 is driven by the hydraulic system to push to the inner wall of the pipe hole through the first pressing block track 23312 to form outward tension, so that a multi-channel pipe fitting to be processed is further fixed, and the push-out distance of the first movable pressing block 23311 can be controlled by the control center;
if the diameter of the pipe hole is close to that of the second telescopic rod 2332, the second telescopic rod 2332 is selected to extend out and extend into the inner surface of the pipe hole, at the moment, the second movable pressing block 23321 is driven by the hydraulic system to push to the inner wall of the pipe hole through the second pressing block track 23322 to form outward tension, the multichannel pipe fitting to be processed is further fixed, and the pushing distance of the second movable pressing block 23321 can be controlled by the control center. In this case, the first telescopic link 2331 does not protrude;
If the diameter of the pipe hole is close to that of the third telescopic rod 2333, the third telescopic rod 2333 is selected to extend out and extend into the inner surface of the pipe hole, at the moment, the third movable pressing block 2331 is driven by the hydraulic system to push to the inner wall of the pipe hole through the third pressing block track (2332) to form outward tension, the multi-channel pipe fitting to be processed is further fixed, and the pushing-out distance of the third movable pressing block 2331 can be controlled by the control center. In this case, the first and second telescopic links 2331 and 2332 do not protrude.
(5) After the workpiece is clamped, the spindle box assembly 2 drives the Z-axis feeding assembly 3, and the saddle 4 moves towards the direction of the workpiece due to the threaded screw fit of the nut 431 and the Z-axis screw 33, and the Z-axis feeding assembly 3 stops moving when the saddle moves to a preset position; at this time, by driving the X-axis feeding assembly 5, the slide plate 41 slides along the slide 43, and the X-axis feeding assembly 5 stops moving until it slides to a predetermined position.
(6) If the angle of the first turret 61 and the second turret 63 needs to be adjusted, the first motor 62 and the second motor 64 can be driven to rotate so that the first turret 61 and the second turret 63 rotate according to the required angle, and the rotation angle can be adjusted between 0 and 90 degrees.
(7) After all the adjustments are completed, the spindle box system 22 can be driven to rotate the hydraulic index chuck 23, and meanwhile, the Z-axis feeding assembly 3 feeds according to a preset track, so that the round hole processing of the multichannel pipe fitting is completed.
The present invention is not limited by the specific embodiments, and modifications can be made to the embodiments without creative contribution by those skilled in the art after reading the present specification, but are protected by patent laws within the scope of claims of the present invention.
Claims (7)
1. The working method of the numerical control special lathe for efficiently machining the multichannel pipe fitting and the valve is characterized in that the numerical control special lathe comprises a lathe body (1), a spindle box assembly (2), a Z-axis feeding assembly (3), a saddle (4), an X-axis feeding assembly (5) and a double-cutter-tower assembly (6), the spindle box assembly (2) comprises a driving assembly (21), a spindle box system (22) and a hydraulic indexing chuck (23), the hydraulic indexing chuck (23) is arranged on the spindle box system (22), the driving assembly (21) is in transmission connection with the hydraulic indexing chuck (23), two parallel sliding rails (11) are arranged on the lathe body (1), the Z-axis feeding assembly (3) comprises a Z-axis servo motor (31), a Z-axis coupling (32) and a Z-axis screw rod (33) which are sequentially connected, the spindle box assembly (2) and the Z-axis feeding assembly (3) are fixed on the lathe body (1), the saddle (4) comprises a sliding plate (41), a sliding plate (431) and a sliding seat (43), the sliding plate (431) is in sliding fit with the spindle box (43), the sliding plate (431) is fixed on the sliding seat (43), the sliding seat (43) is also provided with a screw nut (33), the X-axis feeding assembly (5) comprises an X-axis servo motor (51), an X-axis coupler (52) and an X-axis screw rod (53), the X-axis feeding assembly (5) is in sliding fit with a sliding rail (11) of the lathe bed (1) through a sliding groove (421) formed in a carriage (42), the X-axis screw rod (53) is in threaded screw fit with the sliding plate (41), the double-cutter-tower assembly (6) is composed of a first cutter tower (61), a first motor (62), a second cutter tower (63) and a second motor (64), the first cutter tower (61) and the second cutter tower are symmetrically arranged relative to the Z-axis, and the double-cutter-tower assembly (6) is fixed on the sliding plate (41);
The hydraulic indexing chuck (23) is further provided with a pipe-shaped notch, 2 jacking columns (231), 2 round holes (232) and a hydraulic rod (233), the 2 jacking columns (231) are arranged right opposite to each other, the hydraulic rod can stretch out and draw back along the radial direction under the driving of a hydraulic system, the telescopic end is positioned in the pipe-shaped notch, the hydraulic rod (233) is matched with the round holes (232) and is fixed on the hydraulic indexing chuck (23), the hydraulic rod (233) is connected with the hydraulic system, the hydraulic rod (233) comprises a first telescopic rod (2331), a second telescopic rod (2332) and a third telescopic rod (2333) which are coaxially arranged from inside to outside and sequentially increased in diameter, 8 first movable press blocks (2331) and 8 first press block tracks (23312) are further arranged on the first telescopic rod (2333), 8 second movable press blocks (23321) and 8 second press block tracks (23322) are further arranged on the second telescopic rod (2333), and 8 third movable press blocks (2333) and third press blocks (2333) are further arranged on the third telescopic rod (2333) and the third telescopic rod (2333) along the radial direction tracks (2333), and the third press blocks (2332) are respectively; the first telescopic rod (2331), the second telescopic rod (2332), the third telescopic rod (2333) and 8 first moving press blocks (23311), 8 second moving press blocks (23321) and 8 third moving press blocks (2331) can independently move under a hydraulic system;
the working method of the numerical control special lathe comprises the following steps of:
1) Firstly, checking whether the machine tool body (1) is horizontal or not through a horizontal display (13), and if the machine tool body is in an underhorizontal state, adjusting a balancer (12) through a hydraulic system to enable the machine tool body (1) to be in a horizontal state;
2) Placing the multichannel pipe fitting into a hydraulic index chuck (23), driving a hydraulic system to extend a jack post (231) to the multichannel pipe fitting through a control center of a spindle box system (22), and applying force;
3) After the hydraulic rod is tightly propped up, selecting a telescopic rod of a hydraulic rod (233) with matched diameters according to the diameters of pipe holes corresponding to the processed multichannel pipe fitting; the hydraulic rod (233) is driven by the control center to extend out and extend into the pipe hole corresponding to the multichannel pipe fitting;
if the diameter of the pipe hole is smaller, the first telescopic rod (2331) is selected to extend out and extend into the inner surface of the pipe hole, and the diameter of the first telescopic rod (2331) is smaller than that of the pipe hole, at the moment, the first movable pressing block (23311) is driven by the hydraulic system to push to the inner wall of the pipe hole through the first pressing block track (23312) to form outward tension, a multichannel pipe fitting to be processed is fixed, and the push-out distance of the first movable pressing block (23311) can be controlled by the control center;
If the diameter of the pipe hole is close to that of the second telescopic rod (2332), the second telescopic rod (2332) is selected to extend out and extend into the inner surface of the pipe hole, at the moment, the second movable pressing block (23321) is driven by the hydraulic system to push to the inner wall of the pipe hole through the second pressing block track (23322) to form outward tension, a multichannel pipe fitting to be processed is fixed, and the pushing distance of the second movable pressing block (23321) can be controlled by the control center; in this case, the first telescopic rod (2331) does not protrude;
If the diameter of the pipe hole is close to that of the third telescopic rod (2333), the third telescopic rod (2333) is selected to extend out and extend into the inner surface of the pipe hole, at the moment, the third movable pressing block (2331) is driven by the hydraulic system to push to the inner wall of the pipe hole through the third pressing block track (2332) to form outward tension, a multi-channel pipe fitting to be processed is fixed, and the pushing distance of the third movable pressing block (2331) can be controlled by the control center; in this case, the first telescopic link (2331) and the second telescopic link (2332) do not extend;
4) After the workpiece is clamped, the spindle box assembly (2) drives the Z-axis feeding assembly (3), and the Z-axis feeding assembly (3) stops moving when the spindle box assembly (2) is moved to a preset position due to the fact that the nut (431) is in threaded screw fit with the Z-axis screw rod (33); at the moment, the sliding plate (41) can slide along the sliding seat (43) by driving the X-axis feeding assembly (5), and the X-axis feeding assembly (5) stops moving when the sliding plate slides to a preset position;
5) If the angles of the first cutter tower (61) and the second cutter tower (63) are required to be adjusted, the first motor (62) and the second motor (64) can be driven to rotate so that the first cutter tower (61) and the second cutter tower (63) rotate according to the required angles, and the rotation angle can be adjusted between 0 and 90 degrees;
6) After all adjustment is completed, the spindle box system (22) can be driven to rotate the hydraulic index chuck (23), and meanwhile, the Z-axis feeding assembly (3) feeds according to a preset track, so that the round hole processing of the multichannel pipe fitting is completed.
2. The working method of the numerical control special lathe for efficiently machining the multichannel pipe fitting and the valve, which is disclosed in claim 1, is characterized by comprising the following steps: the machine body (1) is provided with a pair of balancers (12) and a horizontal display (13), the balancers (12) are in communication connection with the horizontal display (13), the balancers (12) are connected with a hydraulic system, and the balancers (12), the horizontal display (13), the hydraulic system and a control center of a main shaft box system (22) are in communication connection.
3. The working method of the numerical control special lathe for efficiently machining the multichannel pipe fitting and the valve, which is disclosed in claim 1, is characterized by comprising the following steps: one end of the sliding seat (43) of the saddle (4) far away from the X-axis servo motor (51) is also provided with a cutter box (432).
4. The working method of the numerical control special lathe for efficiently machining the multichannel pipe fitting and the valve, which is disclosed in claim 1, is characterized by comprising the following steps: the 8 first movable pressing blocks (23311), the 8 second movable pressing blocks (23321) and the 8 third movable pressing blocks (2331) are uniformly distributed along the respective planes in a circumferential manner, and the sizes of the inner end surfaces and the outer end surfaces of the first movable pressing blocks (23311), the second movable pressing blocks (23321) and the third movable pressing blocks (2331) along the radial direction are arc surfaces.
5. The working method of the numerical control special lathe for efficiently machining the multichannel pipe fitting and the valve, which is disclosed in claim 1, is characterized by comprising the following steps: the surface curvatures of the first movable pressing block (23311), the second movable pressing block (23321) and the third movable pressing block (2331) which are in contact with the inner wall of the pipe fitting are the same as the surface curvatures of the first telescopic rod (2331), the second telescopic rod (2332) and the third telescopic rod (2333).
6. The working method of the numerical control special lathe for efficiently machining the multichannel pipe fitting and the valve, which is disclosed in claim 1, is characterized by comprising the following steps: when the 8 first movable pressing blocks (23311) move to the outermost end of the first pressing block track (23312), the diameter of a circular ring formed on the outer end surface of the first movable pressing blocks is larger than the outer diameter of the first telescopic rod (2331);
When the 8 second movable pressing blocks (23321) move to the outermost end of the second pressing block track (23322), the diameter of a circular ring formed on the outer end surface of the second movable pressing blocks is larger than the outer diameter of the second telescopic rod (2332);
when the 8 third movable pressing blocks (2331) move to the outermost ends of the third pressing block tracks (2332), the diameter of a circular ring formed on the outer end surfaces of the third movable pressing blocks is larger than the outer diameter of the third telescopic rod (2333).
7. The working method of the numerical control special lathe for efficiently machining the multichannel pipe fitting and the valve, which is disclosed in claim 1, is characterized by comprising the following steps: the first motor (62) is connected with the first cutter tower (61), the second motor (64) is connected with the second cutter tower (63), the first motor (62) and the second motor (64) are respectively in communication connection with a control center of the spindle box system (22) through interfaces (65) on the first cutter tower (61) and the second cutter tower (63), the first cutter tower (61) and the second cutter tower (63) can rotate for 360 degrees, and the rotation angle can be adjusted in an indexing mode within 0-90 degrees.
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| CN202111452590.8A CN114131386B (en) | 2021-12-01 | 2021-12-01 | Numerical control special lathe for efficiently machining multichannel pipe fitting and valve and working method thereof |
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| CN114770235B (en) * | 2022-03-22 | 2024-01-09 | 上海惠而顺精密工具股份有限公司 | Machining method for machining cutter heads by using cutter head molding machine |
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