CN114131386A - Multi-channel pipe fitting and valve efficient machining numerical control special lathe and working method thereof - Google Patents
Multi-channel pipe fitting and valve efficient machining numerical control special lathe and working method thereof Download PDFInfo
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- CN114131386A CN114131386A CN202111452590.8A CN202111452590A CN114131386A CN 114131386 A CN114131386 A CN 114131386A CN 202111452590 A CN202111452590 A CN 202111452590A CN 114131386 A CN114131386 A CN 114131386A
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- 238000003754 machining Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 114
- 238000004891 communication Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000001788 irregular Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 5
- 239000004484 Briquette Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 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
- 238000005553 drilling Methods 0.000 description 1
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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
Abstract
The invention discloses a multi-channel pipe fitting and valve high-efficiency machining numerical control special lathe and a working method thereof. The invention has the following advantages and effects: compared with the traditional tool turret assembly, the double-tool turret assembly is designed, the machining efficiency can be improved, the tool turret can rotate 360 degrees, the angle adjustment of 0-90 degrees can be realized for the tools on the same plane, and the special requirement of the workpiece which is difficult to machine on the angle of the tool is met. Through the design of the hydraulic indexing chuck, the clamping device is suitable for clamping workpieces with irregular pipe diameters, the clamping effect is obviously superior to that of a 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 special numerical control lathe for efficiently machining a multi-channel pipe fitting and a valve and a working method thereof.
Background
The machine tool industry in China is continuously and rapidly developed, an independent and complete machine tool industrial system with complete doors is built, and great progress is made in the research and development aspects of medium and high-grade numerical control systems. In recent years, along with the adjustment of economic structures, the contradiction between the industrial structure of the numerical control machine industry in China and the market demand needs to be solved urgently, and the revolution of the supply side of the numerical control machine is urgent. As a high-grade numerical control machine tool in one of ten major areas, new opportunities and challenges are faced.
Along with the development of machine manufacturing industry, present lathe trade user is to high speed, high accuracy, the multi-axis linkage, it is compound, intelligence, flexible digit control machine tool demand is bigger and bigger, lathe has been unable to adapt to present production needs gradually, begin to be replaced by the digit control machine tool, but traditional digit control machine tool is in the course of working, only a cutter is cutting, there is machining efficiency low, processing time is long promptly, the high scheduling problem of energy utilization rate, and on the demand of irregular circular or cylindrical work piece processing such as multichannel pipe fitting and valve class part, the promotion of machining efficiency and machining accuracy has been restricted to the degree of difficulty of processing limitation and the clamping of traditional digit control machine tool, therefore remain to improve.
Disclosure of Invention
The invention aims to provide a special numerically controlled lathe for efficiently machining a multi-channel pipe fitting and a valve and a working method thereof, wherein the lathe has the remarkable characteristics of higher integral rigidity, higher speed, higher precision, longer service life, higher reliability and the like, is particularly suitable for clamping irregular round or cylindrical workpieces such as the multi-channel pipe fitting, the valve part and the like once to finish machining contents such as multi-channel turning, boring, drilling, tapping and the like, is easier to form automatic production, and solves the problems of machining efficiency, machining precision, service life improvement and reliability existing at present.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a high-efficient processing numerical control special lathe of multichannel pipe fitting and valve reaches, includes lathe bed, headstock subassembly, Z axle feeding subassembly, saddle, X axle feeding subassembly and double-cutter tower subassembly, the headstock subassembly includes drive assembly, headstock system, hydraulic pressure graduation chuck, and hydraulic pressure graduation chuck sets up on the headstock system, and drive assembly is connected with hydraulic pressure graduation chuck transmission, be equipped with two parallel slide rails on the lathe bed, Z axle feeding subassembly includes Z axle servo motor, Z axle coupler, the Z axle lead screw that connects gradually, headstock subassembly and Z axle feeding subassembly are fixed on the lathe bed, the saddle includes slide, planker and slide, slide and slide sliding fit, the slide is fixed on the planker, still be equipped with the nut on the slide, the nut is in screw-thread fit with Z axle lead screw, X axle feeding subassembly includes X axle servo motor, The X-axis feeding assembly is in sliding fit with a slide rail of the lathe bed through a slide groove formed in the carriage, the X-axis screw rod is in threaded spiral fit with the slide plate, the double-turret assembly is composed of a first turret, a first motor, a second turret and a second motor, the first turret and the second turret are symmetrically arranged relative to the Z axis, and the double-turret assembly is fixed on the slide plate.
Preferably, a pair of balancer and a horizontal display are arranged on the lathe bed, the balancer is in communication connection with the horizontal display, the balancer is connected with the hydraulic system, and the balancer, the horizontal display and the hydraulic system are in communication connection with a control center of the main spindle box system.
Preferably, a cutter box is further arranged at one end, far away from the X-axis servo motor, of the sliding seat of the saddle.
Preferably, hydraulic pressure graduation chuck still is equipped with pipe fitting form notch, 2 fore-set, 2 round holes and hydraulic stem, 2 fore-set is just to setting up, and it can be along radially stretching out and drawing back under hydraulic system drive, and flexible end is located pipe fitting form notch, the hydraulic stem just fixes at hydraulic pressure graduation chuck with the round hole cooperation, the hydraulic stem links to each other with hydraulic system, the hydraulic stem is including coaxial setting and diameter first telescopic link, second telescopic link, the third telescopic link that increases in order from inside to outside, still be equipped with 8 first removal briquetting and 8 first briquetting tracks on the first telescopic link, still be equipped with 8 second removal briquetting and 8 second briquetting tracks on the second telescopic link, still be equipped with 8 third removal briquetting and 8 third briquetting tracks on the third telescopic link, first removal briquetting, second removal briquetting, third removal briquetting set up respectively at first briquetting track, The second pressing block track and the third pressing block track are both movable 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 all circumferentially and uniformly distributed along respective planes, 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 in the radial direction are all arc surfaces.
Preferably, the curvature of the contact surface of the first movable pressing block, the second movable pressing block and the third movable pressing block with the inner wall of the pipe fitting is the same as the curvature of the curved surface 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 movable pressing blocks, the 8 second movable pressing blocks and the 8 third movable pressing blocks can independently move under the 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 by the outer end surfaces of the 8 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 ends of the second pressing block tracks, the diameter of a circular ring formed by the outer end surfaces of the 8 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 ends of the third pressing block tracks, the diameter of a circular ring formed by the outer end surfaces of the 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 in communication connection with a control center of the spindle box system through interfaces on the first tool turret and the second tool turret, the first tool turret and the second tool turret can rotate 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 processing the multi-channel pipe fitting and the valve, which comprises the following steps:
(1) firstly, checking whether the machine tool body is horizontal through a horizontal display, and if the machine tool body is in an under-horizontal state, adjusting a balancer through a hydraulic system to enable the machine tool body to approach to a horizontal state;
(2) putting the multi-channel pipe fitting into a hydraulic indexing chuck, driving a hydraulic system to extend the top column to the multi-channel pipe fitting through a control center of a spindle box system, and applying force;
(3) after the multi-channel pipe fitting is tightly jacked, selecting a telescopic rod of a hydraulic rod with a diameter matched with that of the pipe hole corresponding to the processed multi-channel pipe fitting; the hydraulic rod is driven by the control center to extend out of and into the pipe hole corresponding to the multi-channel pipe fitting;
if the diameter of the pipe hole is smaller, the first telescopic rod is selected to extend out of and into the inner surface of the pipe hole, and the diameter of the first telescopic rod is smaller than that of the pipe hole, so that the first movable pressing block is driven by the hydraulic system to be pushed to the inner wall of the pipe hole through the first pressing block rail to form outward tension to fix the multi-channel pipe fitting to be processed, and the pushing-out 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 into the inner surface of the pipe hole, then the second movable pressing block is driven by the hydraulic system to be pushed to the inner wall of the pipe hole through the second pressing block rail to form outward tension, the multi-channel 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 into the inner surface of the pipe hole, then the third movable pressing block is driven by the hydraulic system to be pushed to the inner wall of the pipe hole through the third pressing block rail to form outward tension, the 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 and second telescopic rods do not extend;
(4) after a workpiece is clamped, the main spindle box assembly drives the Z-axis feeding assembly, the saddle moves towards the direction of the workpiece due to the threaded screw fit of the nut and the Z-axis screw rod, and the Z-axis feeding assembly stops moving when the saddle moves to a set position; 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 cutter tower and the second cutter tower need to be adjusted, the first motor and the second motor can be driven to rotate, so that the first cutter tower and the second cutter tower rotate according to the required angles, and the rotating angle can be adjusted within 0-90 degrees;
(6) and after all the adjustment is finished, the main shaft box system can be driven to enable the hydraulic indexing chuck to rotate, and meanwhile, the Z-axis feeding assembly feeds according to a preset track, so that the multi-channel pipe fitting completes the circular hole machining.
In conclusion, the invention has the following beneficial effects: compared with the traditional tool turret assembly, the double-tool turret assembly is designed, the machining efficiency can be improved, the tool turret can rotate 360 degrees, the angle adjustment of 0-90 degrees can be realized by the tool on the same plane, and the special requirement of a workpiece for the tool angle difficult to machine is met. Through the design of the hydraulic indexing chuck, the clamping device is suitable for clamping workpieces with irregular pipe diameters, the clamping effect is obviously superior to that of a 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 on the machine tool further improves the horizontal accuracy of the current machine tool body.
Drawings
FIG. 1 is a schematic structural view 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 removed bed of FIG. 1;
FIG. 3 is a schematic diagram 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 view of the de-hydraulically indexed chuck of FIG. 1;
fig. 7 is a schematic view of the hydraulic rod 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 feed assembly; 6. a double-turret assembly; 11. a slide rail; 12. a balancer; 13. a horizontal display; 21. a drive assembly; 22. a spindle box system; 23. a hydraulic indexing chuck; 31. a Z-axis servo motor; 32. a Z-axis coupler; 33. a Z-axis lead screw; 41. a slide plate; 42. a carriage; 43. a slide base; 51. a servo motor; 52. an X-axis coupler; a 53X-axis lead screw; 61. a first turret; 62. a first motor; 63. a second turret; 64. a second motor; 65. an interface; 231. a top pillar; 232. a circular hole; 421. a chute; 431. a nut; 432. a tool box; 2331. a first telescopic rod; 2332. a second telescopic rod; 2333. a third telescopic rod; 23311. a first moving press block; 23312. a first briquette rail; 23321. a second moving press block; 23322. a second briquette track; 23331. a third movable pressing block; 23332. a third briquette track;
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-7, a multi-channel pipe fitting and valve efficient machining numerical control special lathe and a working method thereof comprise a lathe bed 1, a main 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, wherein the main spindle box assembly 2 comprises a driving assembly 21, a main spindle box system 22 and a hydraulic indexing chuck 23 which are sequentially connected, the hydraulic indexing chuck 23 is arranged on the main spindle box system 22, and the driving assembly 21 is in transmission connection with the hydraulic indexing chuck 23; the lathe bed 1 is provided with two parallel slide rails 11, the Z-axis feeding component 3 comprises a Z-axis servo motor 31, a Z-axis coupler 32 and a Z-axis screw rod 33 which are connected in sequence, the spindle box component 2 and the Z-axis feeding component 3 are fixed on the lathe bed 1, the saddle 4 comprises a slide plate 41, a carriage 42 and a slide seat 43, the slide plate 41 is in sliding fit with the slide seat 43, the slide seat 43 is fixed on the carriage 42, the slide 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 component 5 comprises an X-axis servo motor 51, an X-axis coupler 52 and an X-axis screw rod 53, the X-axis feeding component 5 is in sliding fit with the slide rails 11 of the lathe bed 1 through a slide groove 421 arranged on the carriage 42, the X-axis screw rod 53 is in threaded screw fit with the slide plate 41, the double-cutter tower component 6 is composed of a first cutter tower 61, a first motor 62, a second cutter tower 63 and a second motor 64 which are symmetrically arranged relative to the Z-axis, the double-turret block 6 is fixed to the slide plate 41.
Further, a balancer 12 and a horizontal display 13 which are paired are arranged on the machine tool body 1, the balancer 12 is communicated with the horizontal display 13, the balancer 12 is connected with a hydraulic system, the balancer 12, the horizontal display 13 and the hydraulic system are communicated with a control center of the spindle box system 22, the horizontal display 13 can be checked in real time, adjustment is carried out through the balancer 12, the levelness of the machine tool body 1 is guaranteed, and machining accuracy is guaranteed. The balancer 12 can be a support leg for adjusting height through hydraulic pressure, a plurality of balancers 12 are arranged on the bed 1, and each balancer 12 is provided with a horizontal display 13. The balancer 12 may be, for example, a hydraulic lever.
Further, a tool box 432 is further formed at one end of the sliding seat 43 of the saddle 4, which is far away from the X-axis servo motor 51, and the tool box 432 can be used for storing machining tools.
Further, the hydraulic indexing chuck 23 is further provided with a pipe-shaped notch, 2 top posts 231, 2 round holes 232 and a hydraulic rod 233, the 2 top posts 231 are arranged opposite to each other and can be driven by a hydraulic system to extend and retract along a radial direction, the extending and retracting ends are located in the pipe-shaped notch, the hydraulic rod 233 is matched with the round holes 232 and fixed to the hydraulic indexing chuck 23, the hydraulic rod 233 is connected with the hydraulic system, the hydraulic rod 233 comprises a first extension rod 2331, a second extension rod 2332 and a third extension rod 2333 which are coaxially arranged and sequentially increased in diameter from inside to outside, the first extension rod 2331 is further provided with 8 first movable pressing blocks 23311 and 8 first pressing block tracks 23312, the second extension rod 2332 is further provided with 8 second movable pressing blocks 23321 and 8 second pressing block tracks 23322, the third extension rod 2333 is further provided with 8 third movable pressing blocks 23331 and 8 third pressing block tracks 23332, in one embodiment of the present invention, first moving press 23311, second moving press 23321, and third moving press 23331 are disposed in first press rail 23312, second press rail 23322, and third press rail 23332, respectively, and are all movable in a radial direction. The movable pressing block and the pressing block rail can move relatively under the driving of a hydraulic system, and the problem of clamping of different pipe hole diameters of the multi-channel pipe fitting is solved.
In an embodiment of the present invention, the 8 first moving pressing blocks 23311, 8 second moving pressing blocks 23321 and 8 third moving pressing blocks 23331 are uniformly distributed along the circumference of the plane on which they are located, and the sizes of the inner end surface and the outer end surface of the first moving pressing block 23311, the second moving pressing block 23321 and the third moving pressing block 23331 in the radial direction are all arc surfaces.
In an embodiment of the present invention, the curvature of the contact surface of the first, second and third moving pressing blocks 23311, 23321 and 23331 with the inner wall of the pipe is the same as the curvature of the contact surface of the first, second and third telescopic rods 2331, 2332 and 2333.
In an embodiment of the present invention, the first telescopic rod 2331, the second telescopic rod 2332, the third telescopic rod 2333, and the 8 first moving pressing blocks 23311, the 8 second moving pressing blocks 23321, and the 8 third moving pressing blocks 23331 may be independently moved by a hydraulic system.
In an embodiment of the present invention, when the 8 first moving pressing blocks 23311 move to the outermost end of the first pressing block rail 23312, the diameter of the outer end surface of the ring is larger than the outer diameter of the first telescopic rod 2331; so that the first movable pressing 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 moving pressing blocks 23321 move to the outermost end of the second pressing block rail 23322, the diameter of the ring formed by the outer end surface thereof is larger than the outer diameter of the second telescopic rod 2332; so that the second movable pressing 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 moving pressing blocks 331 move to the outermost end of the third pressing block rail 23332, the diameter of the ring formed by the outer end surface thereof 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 having a diameter slightly larger than that of the third telescopic rod 33.
Further, the first motor 62 is connected with the first tool turret 61, the second motor 64 is connected with the second tool turret 63, the first motor 62 and the second motor 64 are respectively communicated with a control center of the spindle box system 22 through interfaces 65 on the first tool turret 61 and the second tool turret 63, the first tool turret 61 and the second tool turret 63 can rotate for 360 degrees, and the rotating angle can be adjusted within 0-90 degrees, so that the special requirements of existing irregular parts on the tool angle are met.
The working method of the numerical control special lathe for efficiently machining the multi-channel pipe fitting and the valve is introduced as follows:
(1) firstly, whether the machine tool body 1 is horizontal or not is checked through the horizontal display 13, and if the machine tool body 1 is in an under-horizontal state, the balancer 12 is adjusted through the hydraulic system to enable the machine tool body 1 to tend to be in a horizontal state.
(2) The multi-channel pipe is put into the hydraulic index chuck 23, and the hydraulic system is driven by the control center of the headstock system 22 to extend the knock pin 231 toward the multi-channel pipe and apply a force.
(3) After the multi-channel pipe fitting is tightly jacked, the hydraulic rod 233 is driven by the control center to extend out of the pipe hole corresponding to the multi-channel pipe fitting and extend into the pipe hole corresponding to the multi-channel pipe fitting, and it is noted that before the hydraulic rod 233 acts, the telescopic rod of the hydraulic rod 233 with the diameter matched with that of the pipe hole corresponding to the processed multi-channel pipe fitting needs to be selected.
(4) If the diameter of the pipe hole is smaller, the first telescopic rod 2331 is selected to extend out of and extend into the inner surface of the pipe hole, and because the diameter of the first telescopic rod 2331 is smaller than that of the pipe hole, the first movable pressing block 23311 is driven by a hydraulic system to push towards the inner wall of the pipe hole through the first pressing block rail 23312 to form outward tension, so that the multi-channel pipe fitting to be processed is further fixed, and the pushing-out distance of the first movable pressing block 23311 can be controlled by a 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 enter the inner surface of the pipe hole, and then the second movable pressing block 23321 is driven by a hydraulic system to push towards the inner wall of the pipe hole through the second pressing block rail 23322 to form outward tension, so that the multichannel pipe fitting to be processed is further fixed, and the pushing-out distance of the second movable pressing block 23321 can be controlled by a control center. In this case, the first extension bar 2331 does not extend;
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 enter the inner surface of the pipe hole, at this time, the third movable pressing block 23331 is driven by a hydraulic system to push towards the inner wall of the pipe hole through a third pressing block rail (23332) to form outward tension, so that the multi-channel pipe fitting to be processed is further fixed, and the pushing-out distance of the third movable pressing block 23331 can be controlled by a control center. In this case, the first and second telescopic bars 2331 and 2332 do not extend.
(5) After the workpiece is clamped, the main spindle box assembly 2 drives the Z-axis feeding assembly 3, the saddle 4 moves towards the direction of the workpiece due to the threaded screw fit between the nut 431 and the Z-axis screw 33, and the Z-axis feeding assembly 3 stops moving after moving to a set position; at this time, by driving the X-axis feeding assembly 5, the sliding plate 41 slides along the sliding base 43, and the X-axis feeding assembly 5 stops moving after sliding to a preset position.
(6) If the angles of the first and second turrets 61 and 63 need to be adjusted, the first and second motors 62 and 64 can be driven to rotate so that the first and second turrets 61 and 63 rotate at the required angles, and the rotation angles can be adjusted between 0 and 90 degrees.
(7) After all the adjustment is finished, the main spindle box system 22 can be driven to enable the hydraulic indexing chuck 23 to rotate, and meanwhile, the Z-axis feeding assembly 3 feeds according to a preset track, so that the multi-channel pipe fitting completes circular hole machining.
The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. A multi-channel pipe fitting and valve efficient machining numerical control special lathe is characterized by comprising a lathe body (1), a main spindle box assembly (2), a Z-axis feeding assembly (3), a saddle (4), an X-axis feeding assembly (5) and a double-turret assembly (6), wherein the main spindle box assembly (2) comprises a driving assembly (21), a main spindle box system (22) and a hydraulic indexing chuck (23), the hydraulic indexing chuck (23) is arranged on the main 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 coupler (32) and a Z-axis screw rod (33) which are sequentially connected, and the main spindle box assembly (2) and the Z-axis feeding assembly (3) are fixed on the lathe body (1), the bed 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), a nut (431) is further arranged on the sliding seat (43), the nut (431) is in threaded spiral fit with a Z-axis lead screw (33), the X-axis feeding component (5) comprises an X-axis servo motor (51), an X-axis coupler (52) and an X-axis lead screw (53), the X-axis feeding component (5) is in sliding fit with a sliding rail (11) of the bed body (1) through a sliding groove (421) formed in the carriage (42), the X-axis lead screw (53) is in threaded spiral fit with the sliding plate (41), the double-cutter-tower component (6) is composed of a first cutter tower (61), a first motor (62), a second cutter tower (63) and a second motor (64), and the first cutter tower (61) and the second cutter tower are symmetrically arranged relative to the Z axis, the double-cutter-tower assembly (6) is fixed on the sliding plate (41).
2. The multi-channel pipe fitting and valve efficient machining numerical control special lathe according to claim 1, characterized in that: the lathe bed (1) is provided with a pair of balancer (12) and a horizontal display (13), the balancer (12) is in communication connection with the horizontal display (13), the balancer (12) is connected with a hydraulic system, and the balancer (12), the horizontal display (13) and the hydraulic system are in communication connection with a control center of a main spindle box system (22).
3. The multi-channel pipe fitting and valve efficient machining numerical control special lathe according to claim 1, characterized in that: and a cutter box (432) is further arranged at one end, far away from the X-axis servo motor (51), of the sliding seat (43) of the saddle (4).
4. The multi-channel pipe fitting and valve efficient machining numerical control special lathe according to claim 1, characterized in that: the hydraulic indexing chuck (23) is further provided with a pipe-shaped notch, 2 ejection columns (231), 2 round holes (232) and a hydraulic rod (233), the 2 ejection columns (231) are arranged just opposite to each other, can be driven by a hydraulic system to stretch and retract along the radial direction, the stretching ends are located 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 and sequentially increased in diameter from inside to outside, the first telescopic rod (2331) is further provided with 8 first movable pressing blocks (23311) and 8 first pressing block tracks (23312), the second telescopic rod (2332) is further provided with 8 second movable pressing blocks (23321) and 8 second pressing block tracks (23322), the third telescopic rod (2333) is further provided with 8 third movable pressing blocks (23331) and 8 third pressing block tracks (23332), and the first movable pressing block (23311), the second movable pressing block (23321) and the third movable pressing block (23331) are respectively arranged in the first pressing block track (23312), the second pressing block track (23322) and the third pressing block track (23332) and can move along the radial direction.
5. The multi-channel pipe fitting and valve efficient machining numerical control special lathe according to claim 4, characterized in that: the 8 first moving pressing blocks (23311), the 8 second moving pressing blocks (23321) and the 8 third moving pressing blocks (23331) are uniformly distributed along the circumference of the plane on which the first moving pressing blocks (23311), the second moving pressing blocks (23321) and the third moving pressing blocks (23331) are located, and the sizes of the inner end surface and the outer end surface of each of the first moving pressing blocks (23311), the second moving pressing blocks (23321) and the third moving pressing blocks (23331) in the radial direction are all arc surfaces.
6. The multi-channel pipe fitting and valve efficient machining numerical control special lathe according to claim 4, characterized in that: the curvature of the contact surface of the first moving pressing block (23311), the second moving pressing block (23321) and the third moving pressing block (23331) with the inner wall of the pipe fitting is the same as the curvature of the curved surface of the first telescopic rod (2331), the second telescopic rod (2332) and the third telescopic rod (2333).
7. The multi-channel pipe fitting and valve efficient machining numerical control special lathe according to claim 4, characterized in that: the first telescopic rod (2331), the second telescopic rod (2332), the third telescopic rod (2333), the 8 first movable pressing blocks (23311), the 8 second movable pressing blocks (23321) and the 8 third movable pressing blocks (23331) can independently move under a hydraulic system.
8. The multi-channel pipe fitting and valve efficient machining numerical control special lathe according to claim 4, characterized in that: when the 8 first moving pressing blocks (23311) move to the outermost end of the first pressing block track (23312), the diameter of a circular ring formed by the outer end surfaces of the 8 first moving pressing blocks is larger than the outer diameter of the first telescopic rod (2331);
when the 8 second moving pressing blocks (23321) move to the outermost end of the second pressing block track (23322), the diameter of a circular ring formed by the outer end surfaces of the second moving pressing blocks is larger than that of the second telescopic rod (2332);
when the 8 third moving pressing blocks (331) move to the outermost end of the third pressing block rail (23332), the diameter of the circular ring formed by the outer end surface of each third moving pressing block is larger than the outer diameter of the third telescopic rod (2333).
9. The multi-channel pipe fitting and valve efficient machining numerical control special lathe according to claim 1, characterized in that: the first motor (62) is connected with the first tool turret (61), the second motor (64) is connected with the second tool turret (63), the first motor (62) and the second motor (64) are in communication connection with a control center of the spindle box system (22) through interfaces (65) on the first tool turret (61) and the second tool turret (63), the first tool turret (61) and the second tool turret (63) can rotate 360 degrees, and the indexing adjustment can be achieved within 0-90 degrees through the rotating angle.
10. A working method of a numerical control special lathe for efficiently machining multi-channel pipes and valves as claimed in any one of claims 4 to 8, is characterized by comprising the following steps:
(1) firstly, checking whether the machine tool body (1) is horizontal through a horizontal display (13), and if the machine tool body (1) is in an under-horizontal state, adjusting a balancer (12) through a hydraulic system to enable the machine tool body (1) to tend to be in a horizontal state;
(2) putting the multi-channel pipe fitting into a hydraulic indexing chuck (23), driving a hydraulic system to extend a top column (231) to the multi-channel pipe fitting through a control center of a main spindle box system (22), and applying force;
(3) after the multi-channel pipe fitting is tightly jacked, the telescopic rods of the hydraulic rods (233) with the diameters matched with each other are selected according to the diameters of the pipe holes corresponding to the processed multi-channel pipe fitting; the hydraulic rod (233) is driven by the control center to extend out of the hydraulic system and extend into the pipe hole corresponding to the multi-channel 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 as the diameter of the first telescopic rod (2331) is smaller than that of the pipe hole, the first movable pressing block (23311) is driven by a hydraulic system to push towards the inner wall of the pipe hole through the first pressing block track (23312) to form outward tension so as to fix the multi-channel pipe fitting to be processed, and the pushing-out distance of the first movable pressing block (23311) can be controlled by a 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, then the second movable pressing block (23321) is driven by a hydraulic system to push towards the inner wall of the pipe hole through the second pressing block track (23322) to form outward tension, the multi-channel pipe fitting to be processed is fixed, and the pushing-out distance of the second movable pressing block (23321) can be controlled by a control center; in this case, the first telescopic link (2331) does not extend;
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 (23331) is driven by a hydraulic system to push towards the inner wall of the pipe hole through a third pressing block track (23332) to form outward tension, the multi-channel pipe fitting to be processed is fixed, and the pushing-out distance of the third movable pressing block (23331) can be controlled by a control center; in this case, the first telescopic link (2331) and the second telescopic link (2332) do not extend;
(4) after a workpiece is clamped, the main spindle box assembly (2) drives the Z-axis feeding assembly (3), 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 rod (33), and the Z-axis feeding assembly (3) stops moving after moving to a set position; 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 after sliding to a preset position;
(5) if the angles of the first cutter tower (61) and the second cutter tower (63) need 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 rotating angles can be adjusted within 0-90 degrees;
(6) and after all the adjustment is finished, the main spindle box system (22) can be driven to enable the hydraulic indexing chuck (23) to rotate, and meanwhile, the Z-axis feeding assembly (3) feeds according to a preset track, so that the multi-channel pipe fitting completes circular hole machining.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111452590.8A CN114131386A (en) | 2021-12-01 | 2021-12-01 | Multi-channel pipe fitting and valve efficient machining numerical control special lathe and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111452590.8A CN114131386A (en) | 2021-12-01 | 2021-12-01 | Multi-channel pipe fitting and valve efficient machining numerical control special lathe and working method thereof |
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| CN114131386A true CN114131386A (en) | 2022-03-04 |
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| CN202111452590.8A Pending CN114131386A (en) | 2021-12-01 | 2021-12-01 | Multi-channel pipe fitting and valve efficient machining numerical control special lathe and working method thereof |
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