CN116619064B - Large part double-spindle machining equipment and working method thereof - Google Patents
Large part double-spindle machining equipment and working method thereof Download PDFInfo
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- CN116619064B CN116619064B CN202210802894.0A CN202210802894A CN116619064B CN 116619064 B CN116619064 B CN 116619064B CN 202210802894 A CN202210802894 A CN 202210802894A CN 116619064 B CN116619064 B CN 116619064B
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- 238000003754 machining Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000000712 assembly Effects 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 12
- 230000007306 turnover Effects 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 6
- 239000003595 mist Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 239000011265 semifinished product Substances 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000009977 dual effect Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
-
- 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
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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)
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Abstract
The invention relates to a large-sized part double-spindle machining device and a working method thereof. The two rotating tables of the A shaft are symmetrically arranged on two sides of the workbench and drive the workbench to rotate; a slipway is arranged at the bottom of the A-axis turntable, and the two Y-direction driving assemblies drive the two A-axis turntables to synchronously move back and forth along the Y direction, so that the workbench is driven to move. The Y-direction driving assembly comprises a Y-direction screw rod, a motor and a nut seat, wherein the nut seat is connected with the support of the A-axis turntable, and the motor drives the Y-direction screw rod to drive the nut seat and the A-axis turntable to move back and forth. The double-spindle machining equipment for the large parts and the working method thereof can clamp two large parts at the same time, the workpiece is machined rapidly through the double spindles, the double spindles are provided with safe distances and are matched with each other, and the working efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of machining, in particular to horizontal large-sized part machining equipment adopting double main shafts and a working method thereof.
Background
The horizontal machining center can finish machining of large-sized and heavy parts, and the main shaft of the traditional horizontal machining center is simple in structure and suitable for efficient and high-precision machining of aluminum alloy materials.
In order to meet the requirements of large-sized parts such as large-sized parts, and the like on large cutting force and large torque, the structure size of the workbench of the horizontal machining center is generally designed to be large, and the structure is also complex. When the side surface of the workpiece is required to be processed, the large radius of gyration of the workbench causes the large size of the processing center and high cost. Also causes elongation of the spindle suspension and poor rigidity.
Meanwhile, the existing horizontal machining center is long in machining time for machining large parts, and particularly for the large parts needing double-sided machining, frequent tool changing is needed, the clamping times are more, and the working efficiency is lower.
Disclosure of Invention
The invention aims to provide a large-sized part double-spindle machining device and a working method thereof, which are used for solving the problems that in the background technology, the turning radius of a machining center is large, the spindle is suspended and elongated, the rigidity is poor, and the turning radius of a large-sized part is large, so that the machining device is too expensive.
The invention is realized by the following technical scheme: a large-scale part double-spindle processing device comprises a machine body, a workbench, a tool magazine, a B-axis rotating spindle, a Z-direction ram saddle assembly, a Y-direction driving assembly, an X-direction cross beam and a base,
the base is positioned at the bottom of the machine body, the base is provided with an upright post, an X-direction cross beam and a Y-direction driving component,
the workbench is provided with two stations which are positioned at the top and the bottom of the workbench, the stations are provided with clamp bodies which respectively drive the pressing plate to clamp and loosen the workpiece through the rotary oil cylinder,
the B-axis rotating main shaft and the Z-direction ram saddle assembly are symmetrically arranged, and the B-axis rotating main shaft is arranged at the lower part of the Z-direction ram saddle assembly; the two Z-direction ram saddle assemblies are arranged on the X-direction cross beam, and a safe distance is arranged between the two Z-direction ram saddle assemblies; the Z-direction ram saddle assembly drives the B-axis rotating main shaft to ascend and descend through a motor and a Z-direction screw rod, the Z-direction ram saddle assembly is internally driven by an electric motor, torque is regulated through a speed reducer, and the B-axis rotating main shaft is driven by a synchronous belt to rotate, so that the B-axis rotating main shaft rotates at an angle ranging from-180 degrees to 180 degrees in a horizontal plane,
the two rotating tables of the A shaft are symmetrically arranged on two sides of the workbench and drive the workbench to rotate; a sliding table is arranged at the bottom of the A-axis turntable, two Y-direction driving components drive the two A-axis turntables to synchronously move back and forth along the Y direction, thereby driving the workbench to move,
the Y-direction driving assembly comprises a Y-direction screw rod, a motor and a nut seat, wherein the nut seat is connected with the support of the A-axis turntable, and the motor drives the Y-direction screw rod to drive the nut seat and the A-axis turntable to move back and forth.
Further, two horizontal adjusting screws are respectively and horizontally arranged at two ends of the X-direction cross beam, and the Z-direction ram saddle assembly is driven by a motor to horizontally move.
Further, one or two tool magazines are symmetrically arranged on the outer side of the main shaft, and the tool magazines are provided with broken tool detection modules.
Further, a hydraulic system, an electric system, a cooling pipeline, a chip removal system, a protective housing, an oil mist collecting system, a lubricating system and a pipeline are arranged in the machine body.
Further, a hydraulic driving oil way of the rotary oil cylinder of the clamp body penetrates through the A-axis turntable.
Further, drag chains are arranged on the Z-direction ram saddle assembly and the Y-direction driving assembly and used for arranging oil pipes and air pipes.
Correspondingly, the working method of the large-sized part double-spindle machining equipment comprises the following steps:
s1, when a workpiece is a symmetrical workpiece, two B-axis rotating spindles are arranged on the same X-direction cross beam, symmetrical workpieces are machined in a symmetrical mode, and a constant safety distance is kept between two Z-direction ram saddle assemblies;
s2, when the workpiece is a symmetrical workpiece, one B-axis rotating spindle is used for machining, and the other spindle is used for tool changing preparation;
s3, when the side surface of the workpiece needs to be processed, if the front side surface is processed, the two A-axis rotary tables and the workbench move in the Y direction driven by the Y-direction driving assembly, and the B-axis rotary main shaft rotates to face the Y direction, so that the front side surface of the workpiece is processed; if the rear side surface is processed, at the moment, the two A-axis rotary tables and the workbench are driven by the Y-direction driving assembly to move towards the +Y direction, and the B-axis rotary main shaft rotates towards the +Y direction to process the rear side surface of the workpiece;
s4, when a new workpiece is machined, the new workpiece G is installed at a first station, two B-axis rotating spindles are used for machining the new workpiece G, after machining is completed, an A-axis turntable drives a workbench to turn over 180 degrees, at the moment, a second station drives a half of a last workpiece F to be machined to be located at the upper machining position, and the two B-axis rotating spindles are used for machining the last workpiece F;
s5, loosening a clamp of the second station, finishing the upper workpiece F, and unloading; the A-axis turntable drives the workbench to turn over 180 degrees, the workpiece G faces upwards, the clamp of the first station is loosened, the upper workpiece G is unloaded, the semi-finished product is placed on the transition table,
s6, clamping the next workpiece H on a first station, driving the workbench to turn over 180 DEG by the A-axis turntable, placing the semi-finished workpiece G on the transition table on a second station, closing a machine tool door, processing the semi-finished workpiece G by two B-axis rotary spindles,
and S7, the A-axis turntable drives the workbench to turn over 180 degrees, the workpiece H is processed, the finished workpiece G is unloaded after the machine is stopped, and the S4-S7 circulation is carried out.
The invention has the beneficial effects that:
1. the double-spindle machining equipment for the large parts and the working method thereof can clamp two sides or one side of two large parts at the same time, and rapidly machine the workpiece through the double spindles, wherein the double spindles are provided with safe distances and are matched with each other, so that the working efficiency is greatly improved;
2. according to the invention, the Y-direction driving assembly drives the A-axis turntable and the workbench to move back and forth, the horizontal rotatable B-axis rotating main shaft rotates to +Y or-Y direction to process the front and back sides of large parts, so that the problems of main shaft suspension elongation and rigidity reduction caused by large-scale part large-scale rotation are avoided, the height of processing equipment can be reduced, and the manufacturing cost is reduced.
Drawings
FIG. 1 is a right side view schematic diagram of a large-scale component double spindle machining apparatus according to the present invention;
FIG. 2 is a schematic front view of a large part dual spindle tooling apparatus according to the present invention;
FIG. 3 is a schematic top view of a large part dual spindle tooling apparatus according to the present invention;
FIG. 4 is a schematic perspective view of a large-scale component dual spindle tooling apparatus according to the present invention;
FIG. 5 is a perspective view of the large part dual spindle tooling with the front protective housing removed;
FIG. 6 is an enlarged perspective view of a turntable and a table according to the present invention;
FIG. 7 is an enlarged schematic perspective view of a cross beam, Z-direction ram saddle assembly, B-axis rotating spindle according to the present invention;
FIG. 8 is an enlarged schematic perspective view of the base, Y-direction drive assembly, and A-axis turntable of the present invention;
fig. 9 is an enlarged front view of the base, Y-drive assembly, a-axis turntable of the present invention.
In the figure: 1. a tool magazine; 2. a workpiece; 3. a work table; 4. a body; 5. the B shaft rotates the main shaft; 6. a Z-direction ram saddle assembly; 7. adjusting a screw rod horizontally; 8. an A-axis turntable; 9. a Y-direction drive assembly; 10. an X-direction cross beam; 11. a sliding table; 12. and (5) a base.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-5, the large-sized part double-spindle machining equipment and the working method thereof comprise a machine body 4, a workbench 3, a tool magazine 1, a B-axis rotating spindle 5, a Z-direction ram saddle assembly 6, a Y-direction driving assembly 9, an X-direction cross beam 10 and a base 12. The machine body 4 is internally provided with a hydraulic system, an electric system, a cooling pipeline, a chip removal system, a protective cover shell, an oil mist collecting system, a lubricating system and a pipeline. One or two tool magazines 1 are symmetrically arranged outside the main shaft and are provided with a broken tool detection module. The base 12 is positioned at the bottom of the machine body 4, and the base 12 is provided with an upright post, an X-direction cross beam 10 and a Y-direction driving component 9. The two horizontal adjusting screws 7 are respectively and horizontally arranged at two ends of the X-direction cross beam 10, and driven by a motor to drive the Z-direction ram saddle assembly 6 to horizontally move.
As shown in fig. 6, the workbench 3 is provided with one or two stations, which are positioned at the top and the bottom of the workbench 3, and the stations are provided with clamp bodies which respectively drive the pressing plate to clamp and unclamp the workpiece 2 through the rotary oil cylinders. As shown in fig. 7, the B-axis rotating spindle 5 and the Z-direction ram saddle assembly 6 are arranged symmetrically, and the B-axis rotating spindle 5 is installed at the lower part of the Z-direction ram saddle assembly 6; the two Z-direction ram saddle assemblies 6 are arranged on the X-direction cross beam 10, and a safe distance is arranged between the two Z-direction ram saddle assemblies; the Z-direction ram saddle assembly 6 drives the B-axis rotating main shaft 5 to ascend and descend through a motor and a Z-direction screw rod, the Z-direction ram saddle assembly 6 is internally driven by an electric motor, torque is regulated through a speed reducer, and the B-axis rotating main shaft 5 is driven to rotate through a synchronous belt, so that the B-axis rotating main shaft 5 rotates at 360 degrees in a horizontal plane.
As shown in fig. 6, 8 and 9, two a-axis rotating tables 8 are symmetrically arranged on two sides of the workbench 3 to drive the workbench 3 to rotate; the bottom of the A-axis turntable 8 is provided with a sliding table 11, and the two Y-direction driving assemblies 9 drive the two A-axis turntable 8 to synchronously move back and forth along the Y direction, so that the workbench 3 is driven to move. The Y-direction driving assembly 9 comprises a Y-direction screw rod, a motor and a nut seat, wherein the nut seat is connected with the support of the A-axis turntable 8, and the motor drives the Y-direction screw rod to drive the nut seat and the A-axis turntable 8 to move forwards and backwards.
In one example, the hydraulic drive oil path of the slewing oil cylinder of the clamp body passes through the a-axis turntable 8.
In one example, drag chains are arranged on the Z-direction ram saddle assembly 6 and the Y-direction driving assembly 9 for arranging oil pipes and air pipes.
Correspondingly, the working method of the large-sized part double-spindle machining equipment comprises the following steps:
s1, when a workpiece 2 is a symmetrical workpiece 2, two B-axis rotating spindles 5 symmetrically act on the same X-direction cross beam 10 to process the symmetrical workpiece 2, and a constant safety distance is kept between two Z-direction ram saddle assemblies 6;
s2, when the workpiece 2 is a symmetrical workpiece 2, one B-axis rotary spindle 5 is used for machining, and the other spindle is used for tool changing preparation;
s3, when the side surface of the workpiece 2 needs to be processed, if the front side surface is processed, the two A-axis rotary tables 8 and the workbench 3 are driven to move in the Y direction by the Y-direction driving assembly 9, and the B-axis rotary main shaft 5 rotates to face the Y direction, so that the front side surface of the workpiece 2 is processed; if the rear side surface is machined, at the moment, the two A-axis rotary tables 8 and the workbench 3 are driven by the Y-direction driving assembly 9 to move towards the +Y direction, and the B-axis rotary main shaft 5 rotates towards the +Y direction to machine the rear side surface of the workpiece 2;
s4, when a new workpiece 2 is machined, the new workpiece 2G is installed at a first station, two B-axis rotating spindles 5 machine the new workpiece 2G, after machining is finished, an A-axis turntable 8 drives a workbench 3 to turn over 180 degrees, at the moment, a second station drives a half of a last workpiece 2F to be machined to be located at the upper machining position, and the two B-axis rotating spindles 5 machine the last workpiece 2F;
s5, loosening a clamp of the second station, finishing the upper workpiece 2F, and unloading; the A-axis turntable 8 drives the workbench 3 to turn 180 degrees, the workpiece 2G faces upwards, the clamp of the first station is loosened, the upper workpiece 2G is unloaded, the semi-finished product is placed on the transition table,
s6, placing the next workpiece 2H on a first station for clamping, driving the workbench 3 to turn over 180 degrees by the A-axis turntable 8, placing the semi-finished workpiece 2G on the transition table on a second station, closing a machine tool door, processing the semi-finished product G by two B-axis rotary spindles 5,
s7, the A-axis turntable 8 drives the workbench 3 to turn over 180 degrees, the semi-finished workpiece 2H is processed, the finished workpiece 2G is unloaded after stopping, and S4-S7 circulation is carried out.
The working principle of the invention is as follows:
according to the large-sized part double-spindle machining equipment and the working method thereof, the double-spindle is provided with the double-tool magazine 1, so that the simultaneous machining of two parts can be completed by one-time clamping, and the machining efficiency of the parts is greatly improved.
The machine tool equipment main body is of a fixed beam gantry bilateral symmetry structure and mainly comprises a machine body, a beam, an upright post, a ram, a B-axis swinging head, an A-axis cradle, a double-drive movable workbench 3 and other host parts. There are 10+2 axes of motion, X1X2, Y1Y2, Z1Z2, B1B2, A1A2 and 2 principal axes, respectively.
The machine tool is provided with double tool magazines 1, and the tool loading amount of each tool magazine 1 is 36. The high-pressure cooling liquid is adopted to cool the cutter, the main shaft of the machine tool is a high-performance electric main shaft, the main shaft has the function of water outlet in the center of the main shaft, and scraps produced by machining and cutting are discharged from the rear part of the machine tool through the plate chain type chip cleaner in the machine tool body. The servo drive of the machine tool host adopts a Siemens numerical control system.
The machine tool is high-efficiency processing equipment specially designed for large parts. The double-spindle type is adopted, the minimum center distance between the two spindles is 600mm, the two spindles can process contents outside the range of which the bilateral symmetry of the large part is larger than 600mm, the double-spindle simultaneous processing is realized, and the minimum center distance, such as 700mm and the like, can be adjusted according to the size of the processing center, the processing requirement and the working condition.
And the machining of the middle part of the large part is finished by a single spindle within the machining content (the central line is smaller than Yu Shi mm), so that the machining of one spindle is realized, the tool changing of the other spindle is on standby, the auxiliary time is saved to the greatest extent, and the working efficiency of the machine tool is improved. The machine tool ram assembly horizontally moves on a cross beam to form an X axis, the ram moves up and down along the vertical direction of a sliding plate to form a Z axis, a main shaft arranged on the ram rotates on the front surface of the ram along a vertical plane to form a B axis, left and right working tables 3 on two sides of a machine tool body move along a horizontal plane perpendicular to the X direction to form a Y axis, and a rotary table arranged on the working table 3 rotates on a vertical plane to form an A axis.
The X, Z, B axes of the machine tool are two independent motion axes, and the Y, A axes are synchronous double-drive motion axes. X, Y, Z is driven by screw rod servo.
The machine tool body, the upright posts and the cross beam are designed into a frame body structure, and the structure is subjected to secondary aging treatment, so that the machine tool has higher rigidity and anti-seismic performance, good precision retention and high rigidity. The beam and the upright column casting HT300, and the front lathe bed, the saddle and the ram are welded pieces.
The main shaft adopts a built-in high-power high-speed electric main shaft. The main shaft loose broach alarming function is that the tool with and without the tool is protected and the tool is pulled in place for detection.
And the spindle has a water-cooling protection function. And a main shaft temperature rise alarm function.
And reserving an installation position for limiting and reinforcing the support of the angle head on the spindle box body.
The machine tool is characterized in that two sides of a machine body of a base 12 are respectively provided with a Y-direction movable workbench 3, a left stone L is arranged on a Ding Bie female farm A-axis cradle, the rotation center of the A-axis is parallel to the X-axis, the double A-axis adopts synchronous double driving to ensure the driving moment and driving rigidity of a turntable, a set of fixture mounting platform is respectively arranged on the front and the back of a connecting bridge plate between the two turntable, an oil and gas mounting interface is arranged on the platform to be in butt joint with the interface of a fixture (the exchange with the existing fixture of the first party is ensured during design), and the front and the back fixture mounting platforms are supplied with oil and gas by two independent oil distribution shafts, so that the clamping and the loosening can be independently controlled. The working table 3 is reserved for positioning, fixing structure and machine tool fluid interface according to the customer clamp, and the fluid channel is provided with a leakage sending head and a clamp pair.
The pneumatic system is used for the functions of airtight protection, pneumatic detection, automatic door opening and closing and the like of the machine tool. The system has the functions of residual pressure release and air pressure slow-rise, and ensures the reliable operation and the safe maintenance of the pneumatic system. The pneumatic system provides an air detection function for the customer provided clamp.
The machine X, Y, Z three-way adopts an imported brand linear ball guide rail structure. X, Y, Z triaxial feed employs a similar drive arrangement. The alternating current servo motor is directly connected with the ball screw through an elastic coupling, and bearings at two ends of the screw are assembled by adopting high-precision thrust bearings, so that the feeding system is ensured to have high system rigidity and transmission precision. The Z-direction motor is provided with a brake, and is braked tightly when power is off so as to prevent the ram from sliding downwards due to self weight, and the ram is provided with a pneumatic counterweight. The servo motor, a corresponding speed control unit, a pulse encoder for position detection and the like are controlled by a numerical control system to complete various feeding motions. The X, Y, Z shaft has a reliable mechanical bump guard. The X, Y, Z fast feed speed and the cutting feed speed can reach 60 m/min. The tool magazine 1 is of a large-capacity chain structure, two sets of tool magazines are respectively arranged on the inner sides of a machine tool beam and left and right stand columns, the capacity of a single tool magazine is 36, and the tools are rapidly selected in a servo mode. The cutter in the cutter bin can be manually updated behind the machine tool, so that the machine tool is safe and convenient. The tool magazine 1 is internally provided with a broken tool detection function, so that the machining time of a machine tool is not occupied. At least 2 angle heads or heavy cutter position machine tools of each cutter magazine 1 adopt fully-closed integral protection with attractive appearance, and no leakage phenomenon occurs. The operator closely observes main shaft and anchor clamps through lathe side door and observation window, makes things convenient for the tool setting adjustment. The pane glass adopts toughened glass. The automatic protection door L-shaped open structure in the feeding area is characterized in that the top is opened when the protection door is opened, the open space of the protection door is large, and manual feeding and discharging are facilitated. Machine X, Y employs high speed roller shutter protection for the guide rail. The machine tool protective door is provided with an automatic electronic door lock system, the protective door cannot be opened in the machining process, the machine tool protective door can be opened after stopping machining, and the clamping prevention function of the automatic protective door belt at the loading and unloading position ensures the safety of personnel.
The hydraulic system is used for the main shaft loose knife and the hydraulic clamp. The hydraulic clamp control valve group has a power-off protection function, the hydraulic system has an automatic unloading function, the safety of processing and maintenance is guaranteed, the hydraulic system and each necessary valve group are provided with a digital display pressure detection switch, when the system pressure is lower than a set value, the machine tool alarms and stops working, and all the valve groups are provided with pressure reducing valves for adjusting the pressure. The hydraulic station is provided with a heat exchange device and a temperature detection switch, so that the reliable operation of a hydraulic system of the machine tool is ensured, the hydraulic pipelines are all provided with pipe clamps for fixation, the pipe running is neat and attractive, and no vibration is generated during operation. A hydraulic oil tank filler and a liquid level observation window.
The machine tool lubrication is realized by a centralized automatic thin oil lubrication device, and oil is supplied at fixed time, fixed quantity and fixed pressure after the machine tool is started, and the guide rail and the screw pair are automatically supplied with oil for lubrication, so that the lubrication is automatically alarmed when faults occur.
The pneumatic system is used for the functions of airtight protection, pneumatic detection, automatic door opening and closing and the like of the machine tool. The system has the functions of residual pressure release and air pressure slow-rise, and ensures the reliable operation and the safe maintenance of the pneumatic system. The pneumatic system provides an air detection function for the customer provided clamp.
The machine tool is provided with a recoil scraper chip removing machine, and emulsion liquid is adopted for cleaning a machining area of the machine tool to wash chips in a large flow. The emulsion is filtered to a high-pressure water tank through three stages of water tanks, and the cooling liquid is used for cooling the cutter. The high-pressure water tank adopts an overflow valve to balance the pressure and flow of cold water in the cutter. The water tank of the machine tool is provided with water for cooling the machine tool by a water cooling machine, so that the precision of the machine tool is not influenced by the processing heat.
The machine tool is provided with an oil mist collecting device for collecting oil mist in the processing area and protecting the surrounding processing environment of the equipment. The machine tool control system adopts a Siemens numerical control system, the system has program simulation processing and measurement simulation functions, a rigid tapping function and an electric cabinet with integral coordinate translation function, adopts an independent fully-closed structure, ensures reliable sealing performance, prevents dust from entering, controls the temperature in the electric cabinet by adopting an industrial air conditioner, and reduces faults caused by heating when each electric element and the system work. And the machine tool is provided with a stabilized voltage power supply and the machine tool and an electric cabinet are illuminated.
The foregoing has outlined and described the basic principles, features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention can be implemented by those skilled in the art without limiting the scope of the invention, therefore, all equivalent changes or modifications that are made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (1)
1. A working method of a large-sized part double-spindle processing device,
the large-sized part double-spindle processing equipment comprises a machine body (4), a workbench (3), a tool magazine (1), a B-axis rotating spindle (5), a Z-direction ram saddle assembly (6), a Y-direction driving assembly (9), an X-direction cross beam (10) and a base (12),
the base (12) is positioned at the bottom of the machine body (4), the base (12) is provided with an upright post, an X-direction cross beam (10) and a Y-direction driving component (9),
the workbench (3) is provided with one or two stations which are positioned at the top or the bottom of the workbench (3), a clamp body is arranged on the stations, the clamp plate is driven by a rotary oil cylinder to clamp and loosen the workpiece (2),
the B-axis rotating main shaft (5) and the Z-direction ram saddle assembly (6) are symmetrically arranged, and the B-axis rotating main shaft (5) is arranged at the lower part of the Z-direction ram saddle assembly (6); the two Z-direction ram saddle assemblies (6) are arranged on the X-direction cross beam (10), and a safe distance is arranged between the two Z-direction ram saddle assemblies; the Z-direction ram saddle assembly (6) drives the B-axis rotating main shaft (5) to lift through a motor and a Z-direction screw rod, the Z-direction ram saddle assembly (6) drives the B-axis rotating main shaft (5) to rotate through an electric motor, a speed reducer adjusts torque, and a synchronous belt drives the B-axis rotating main shaft (5) to rotate at an angle ranging from-180 DEG to 180 DEG in a horizontal plane,
the two A-axis rotating tables (8) are symmetrically arranged on two sides of the workbench (3) and synchronously drive the workbench (3) to rotate; a sliding table (11) is arranged at the bottom of the A-axis turntable (8), two Y-direction driving components (9) drive the two A-axis turntable (8) to synchronously move back and forth along the Y direction, thereby driving the workbench (3) to move,
the Y-direction driving component (9) comprises a Y-direction screw rod, a motor and a nut seat, the nut seat is connected with the support of the A-axis turntable (8), the motor drives the Y-direction screw rod to drive the nut seat and the A-axis turntable (8) to move forwards and backwards,
two horizontal adjusting screws (7) are respectively and horizontally arranged at two ends of the X-direction cross beam (10), the Z-direction ram saddle assembly (6) is driven by a motor to move horizontally,
one or two tool magazines (1) are symmetrically arranged at the outer side of the main shaft when the number of the tool magazines is two, are provided with a broken tool detection module,
the machine body (4) is internally provided with a hydraulic system, an electric system, a cooling pipeline, a chip removal system, a protective housing, an oil mist collecting system, a lubricating system and a pipeline,
the hydraulic driving oil way of the rotary oil cylinder of the clamp body passes through the A-axis turntable (8),
drag chains are arranged on the Z-direction ram saddle assembly (6) and the Y-direction driving assembly (9) and are used for arranging oil pipes and air pipes,
the method is characterized in that: the method comprises the following steps:
s1, when a workpiece (2) is a symmetrical workpiece (2), two B-axis rotating spindles (5) are arranged on the same X-direction cross beam (10) and symmetrically act to process the symmetrical workpiece (2), and a constant safety distance is kept between two Z-direction ram saddle assemblies (6);
s2, when the workpiece (2) is an asymmetric workpiece (2), one of the B-axis rotary spindles (5) is used for machining, and the other spindle is used for tool changing preparation;
s3, when the side surface of the workpiece (2) needs to be processed, if the front side surface is processed, the two A-axis rotary tables (8) and the workbench (3) are driven by the Y-direction driving assembly (9) to move towards the Y direction, and the B-axis rotary main shaft (5) is rotated to face the Y direction, so that the front side surface of the workpiece (2) is processed; if the rear side surface is machined, at the moment, the two A-axis rotary tables (8) and the workbench (3) are driven by the Y-direction driving assembly (9) to move towards the +Y direction, and the B-axis rotary main shaft (5) rotates to face the +Y direction to machine the rear side surface of the workpiece (2);
s4, when a new workpiece (2) G is machined, the new workpiece (2) G is installed at a first station, two B-axis rotating spindles (5) machine the new workpiece (2) G, after machining is finished, an A-axis turntable (8) drives a workbench (3) to turn over 180 degrees, at the moment, a second station drives a last workpiece (2) F which is half machined to be located at the upper machining position, and the two B-axis rotating spindles (5) machine the last workpiece (2) F;
s5, loosening a clamp of the second station, finishing the upper workpiece (2) F, and unloading; the A-axis turntable (8) drives the workbench (3) to turn over 180 degrees, the workpiece (2) G faces upwards, the clamp of the first station is loosened, the upper workpiece (2) G is unloaded, the semi-finished product is placed on the transition table,
s6, placing the next workpiece (2) H on a first station for clamping, driving the workbench (3) to turn over 180 DEG by the A-axis turntable (8), placing the semi-finished workpiece (2) G on the transition table on a second station, closing a machine tool door, processing the semi-finished workpiece (2) G by two B-axis rotating spindles (5),
s7, the A-axis turntable (8) drives the workbench (3) to turn over 180 degrees, the workpiece (2) H is processed, the finished workpiece (2) G is unloaded after stopping, and S4-S7 circulation is carried out.
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| CN116619064A (en) | 2023-08-22 |
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Denomination of invention: A large component dual spindle machining equipment and its working method Granted publication date: 20231205 Pledgee: Bank of China Limited by Share Ltd. Yancheng branch Pledgor: Jiangsu Weima Yueda Intelligent Equipment Co.,Ltd. Registration number: Y2024980007373 |
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