CN114310419B - Sixteen-axis numerical control five-axis linkage precise milling and grinding machining center - Google Patents
Sixteen-axis numerical control five-axis linkage precise milling and grinding machining center Download PDFInfo
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- CN114310419B CN114310419B CN202210046748.XA CN202210046748A CN114310419B CN 114310419 B CN114310419 B CN 114310419B CN 202210046748 A CN202210046748 A CN 202210046748A CN 114310419 B CN114310419 B CN 114310419B
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Abstract
The invention discloses a sixteen-axis numerical control five-axis linkage precise milling and grinding machining center, which comprises a base, wherein an X-axis driving device is arranged on a front base, a workbench is arranged on the X-axis driving device, a five-axis cradle turntable is arranged on the workbench, and a An Gongjian clamp is arranged on the five-axis cradle turntable; one side of the rear base is connected with a tool magazine rack system, and the inner side of the bottom of the tool magazine rack system is fixedly connected with a tool changing device; a Z-axis sliding guide rail which is horizontally installed is fixedly arranged on the rear base, a stand column is connected to the Z-axis sliding guide rail through a Z-axis driving assembly, a Y-axis driving device is vertically arranged on the stand column, one end, close to the X-axis driving device, of the Y-axis driving device is provided with a Y-axis sliding guide rail, a supporting plate device is arranged on the Y-axis sliding guide rail in a sliding manner, and a grinding wheel tool assembly and a trimming roller assembly are arranged in the supporting plate device; one side of the supporting plate device is provided with a numerical control double-shaft cooling device, and the other side of the supporting plate device is provided with a trimming cooling assembly. The invention can adopt the trimming roller to continuously trim while grinding.
Description
Technical Field
The invention relates to the technical field of precision machining devices, in particular to a sixteen-axis digital control five-axis linkage precision milling machining center.
Background
The grinding center is a multifunctional compound machine tool and generally comprises a grinding device, a cooling device, a machine tool body, a numerical control operating system, a waste recycling device, a moving part, a workpiece clamping and fixing device and the like, and the grinding processing of the excircle, the plane, the end face, the non-circle, the curved surface and other parts of a workpiece can be completed by one-time clamping. The grinding center has the characteristics of high machining precision, high machining efficiency and high machining flexibility, and is suitable for the precision machining field of the industries of military industry, aerospace, cutters, measuring tools, aviation, machine tools and the like. The grinding center is an essential device for grinding precision parts such as the engine She Sun.
In the grinding process of the conventional grinding center, when grinding wheels with different shapes and sizes are needed, the grinding wheels are needed to be replaced manually, the machining efficiency is low, the safety coefficient is low, and continuous trimming of the rollers during grinding machining cannot be realized.
Disclosure of Invention
The invention aims to provide a sixteen-axis numerical control five-axis linkage precise milling and grinding machining center, which solves the problems in the prior art and can continuously finish by adopting a finishing roller while grinding.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a sixteen-axis numerical control five-axis linkage precise milling machining center which comprises a base, wherein the base comprises a front base and a rear base, an X-axis driving device is arranged on the front base, a workbench is arranged on the X-axis driving device, a five-axis cradle turntable is arranged on the workbench, and a workpiece and a clamp jig are arranged on the five-axis cradle turntable; a tool magazine frame system is fixedly connected to one side of the rear base, and a tool changing device is fixedly connected to the inner side of the bottom of the tool magazine frame system; the rear base is fixedly provided with a Z-axis sliding guide rail which is horizontally installed, the Z-axis sliding guide rail is connected with an upright post through a Z-axis driving assembly, a Y-axis driving device is vertically arranged on the upright post, one end, close to the X-axis driving device, of the Y-axis driving device is provided with a Y-axis sliding guide rail, the Y-axis sliding guide rail is provided with a supporting plate device in a sliding manner, and a grinding wheel tool assembly and a trimming roller assembly are arranged in the supporting plate device; one side of the supporting plate device is provided with a numerical control double-shaft cooling device, and the other side of the supporting plate device is provided with a trimming cooling assembly.
Optionally, the X-axis driving device comprises an X-axis ball linear guide rail, the workbench is slidably arranged on the X-axis ball linear guide rail, a ball screw is arranged at the bottom of the workbench, one end of the ball screw is in transmission connection with an X-axis driving servo motor, and a screw nut on the ball screw is fixedly connected with the bottom of the workbench.
Optionally, the workbench comprises an upper workbench and a lower workbench, the bottom of the lower workbench is fixedly connected with the front base, the X-axis ball linear guide rail is arranged on the lower workbench, and the bottom of the upper workbench is connected with the X-axis ball linear guide rail through a slide block; the ball screw is arranged between the upper workbench and the lower workbench; the five-axis cradle turntable is fixedly arranged on the upper workbench.
Optionally, five cradle revolving stages keep away from one side of stand is provided with desk-top trimming device, desk-top trimming device including fixed set up in desk-top trimming mount pad on the upper table, be provided with desk-top trimming servo motor in the desk-top trimming mount pad, desk-top trimming servo motor bottom is connected with desk-top trimming rotation axis through the belt pulley transmission, desk-top trimming rotation axis top fixed mounting has desk-top trimming roller, desk-top trimming rotation axis upper and lower both ends respectively through desk-top trimming bearing support set up in the desk-top trimming mount pad.
Optionally, the tool changing device comprises a tool changing device mounting seat, a first tool changing ball guide rail which is vertical to the tool magazine frame system and is horizontally arranged is arranged on the tool changing device mounting seat, a fixing frame is slidably arranged on the first tool changing ball guide rail, a first tool changing servo motor is fixedly arranged on the fixing frame, the first tool changing servo motor is in transmission connection with a tool arm mounting device, a second tool changing ball guide rail which is vertical to the first tool changing ball guide rail is fixedly arranged on the tool arm mounting device, two groups of tool arm devices are slidably arranged on the second tool changing ball guide rail, each group of tool arm devices comprises two tool arms which are vertically symmetrically arranged, tool claws are arranged at the tail ends of the tool arms through pneumatic clamps, and the tool claws of the two groups of tool arm devices are respectively positioned at two ends of the tool arm mounting device; the cutter arm is connected with a cutter arm driving motor, and the cutter arm driving motor can drive the cutter arm to move along the second cutter changing ball guide rail; the bottom of the fixing frame is connected with a tool changing ball screw nut pair, the tail end of the tool changing ball screw nut pair is connected with a second tool changing servo motor, and the second tool changing servo motor can drive the fixing frame to move back and forth along the first tool changing ball guide rail through the tool changing ball screw nut pair.
Optionally, the supporting plate device comprises a V-shaped structural body slidably arranged on the Y-axis sliding guide rail, the front end of the V-shaped structural body is fixedly connected with a supporting plate, the rear end of the supporting plate is fixedly connected with a first driving motor through a connecting frame, the front end of the supporting plate is provided with a first driving body device, the first driving body device is arranged at the front end of the supporting plate through a plurality of bearings, the rear end of the first driving body device is in transmission connection with the first driving motor through a connector, and the front end of the first driving body device is in transmission connection with the grinding wheel tool assembly; the utility model discloses a flexible electric motor grinding machine, including layer board, first drive main part device, layer board, slide, first drive main part device, second drive main part device, layer board upper end fixedly connected with V axle mount, V axle mount inner chamber is provided with the second drive main part device, just the second drive main part device is located first drive main part device top, second drive main part device front end is connected with the repair roller subassembly, second drive main part rear end is connected with second driving motor through belt transmission, be provided with the slide device on the V axle mount, second drive main part device and second driving motor fixedly set up in on the slide device, the slide device is connected with the slide ball screw pair, slide ball screw pair upper end transmission is connected with slide ball screw driving motor.
Optionally, one side of the numerically controlled double-shaft cooling device is fixedly connected with the supporting plate through a fixing plate, the numerically controlled double-shaft cooling device comprises an up-and-down moving module and a left-and-right moving module, the bottom of the left-and-right moving module is connected with a nozzle assembly, the nozzle assembly comprises a nozzle, a chip blocking sheet metal is fixedly arranged at the upper end of the nozzle, a high-pressure water spraying inlet pipe is arranged on the right side of the chip blocking sheet metal, and the high-pressure water spraying inlet pipe is communicated with the nozzle; the left-right moving module and the up-down moving module can drive the nozzle assembly to move left and right or up and down.
Optionally, the trimming cooling assembly comprises a fixing frame fixedly connected with one side of the supporting plate, a connecting block is fixedly installed on the fixing frame, two guide rods are inserted on the connecting block, the bottoms of the guide rods are connected with a fixing plate, the bottoms of the fixing plate are fixedly connected with a water inlet block through screws, and one side of the water inlet block is in threaded connection with a trimming cooling nozzle; a driving box body is arranged between the two guide rods, the bottom of the driving box body is connected with the fixing plate through a screw rod, and a power source device is arranged in the driving box body.
Optionally, the layer board bilateral symmetry is provided with two universal cooling assemblies, universal cooling assembly is connected with high-pressure cooling system through high-pressure water pipe.
Compared with the prior art, the invention has the following technical effects:
the tool changer can enable the tool changer in the tool magazine to be movable, can simultaneously and automatically replace and install the grinding wheel and the corresponding diamond roller, and can also realize independent replacement of the grinding wheel or the diamond roller and realize continuous trimming. The grinding efficiency is improved, and the five-axis linkage control effect is good. The invention has the advantages of following a cooling system, good cooling effect and higher quality of the processed surface; the tool magazine can be simultaneously provided with the grinding wheel and the milling cutter or the drill bit, and has high spindle rotation speed, high power and high machining efficiency, and the tool magazine can move, so that the grinding space is larger.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to the drawings without the need of creative effort for a person of ordinary skill in the art, so other similar drawing structures without the need of creative effort should belong to the protection scope of the patent claims of the present invention except for the following drawings.
FIG. 1 is a schematic diagram of the overall structure of a sixteen-axis numerical control five-axis linkage precise milling machining center;
FIG. 2 is a schematic view of a table assembly according to the present invention;
FIG. 3 is a schematic view of a table finishing assembly according to the present invention;
FIG. 4 is a schematic view of a tool changer according to the present invention;
FIG. 5 is a schematic view of the pallet assembly of the present invention;
FIG. 6 is a schematic diagram of a digitally controlled dual-axis cooling device according to the present invention;
FIG. 7 is a schematic view of a trim cooling assembly according to the present invention;
FIG. 8 is a schematic view of a universal cooling assembly according to the present invention;
FIG. 9 is a schematic top view of the universal cooling module of the present invention in operation;
wherein, the liquid crystal display device comprises a liquid crystal display device, 100 is sixteen-axis digital control five-axis linkage precision milling and grinding machining center, 1 is a base, 2 is an X-axis driving device, 3 is a five-axis cradle turntable, 4 is a workbench component, 5 is a desk type trimming device, 6 is a tool changing device, 7 is a tool magazine frame system, 8 is a Y-axis driving device, 9 is a column, 10 is a supporting plate device, 11 is a digital control double-axis cooling device, 12 is a trimming roller component, 13 is a grinding wheel tool component, 14 is a trimming cooling component, 15 is a Z-axis sliding guide rail, 16 is a Z-axis driving component, 17 is a Y-axis sliding guide rail, 18 is an X-axis ball linear guide rail, 19 is an X-axis ball screw, 20 is an X-axis driving servo motor, 21 is a workbench, 22 is a desk type trimming servo motor, 23 is a desk type trimming belt pulley, 24 is a desk type trimming bearing, 26 is a desk type trimming roller, 27 is a tool changing ball screw nut pair 28 is a first tool changing servo motor, 30 is a tool arm device, 31 is a tool arm device, 32 is a second tool changing servo motor, 33 is a tool, 34 is a tool arm driving motor, 35 is a second tool changing servo motor, 36 is a first driving motor, 37 is a supporting plate, 38 is a second driving motor, 39 is a slide plate screw driving motor, 40 is a slide plate screw pair, 41 is a second driving main body device, 42 is a trimming roller, 43 is a first driving main body device, 44 is a main grinding wheel, 45 is a belt, 46 is a coupler, 47 is a slide plate device, 48 is a V-axis fixing frame, 49 is a left and right moving module, 51 is an up and down ball screw pair, 52 is an up and down moving servo motor, 54 is a left and right moving motor, 55 is a left and right ball screw pair, 56 is a left and right ball screw pair, the left and right linear ball guide rails 57, 58, 59, a nozzle assembly, 60, 61, a chip-blocking sheet metal, 62, a high-pressure water spraying water inlet pipe, 63, a vertical moving module, 64, a connecting block, 65, a guide rod, 66, a fixed plate, 67, a water inlet block, 68, a driving box body, 69, a wire outlet sleeve, 70, a fixing frame, 71, a trimming cooling nozzle, 72, a universal cooling assembly and 73, wherein the trimming cooling assembly is a drill bit.
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.
The invention aims to provide a sixteen-axis numerical control five-axis linkage precise milling and grinding machining center, which solves the problems in the prior art and can continuously finish by adopting a finishing roller while grinding.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1-9, the invention provides a sixteen-axis digital control five-axis linkage precise milling machining center 100, which comprises a base 1, wherein the base 1 comprises a front base and a rear base, an X-axis driving device 2 is arranged on the front base, a workbench component 4 is arranged on the X-axis driving device 2, a five-axis cradle turntable 3 is arranged on the workbench component 4, a servo motor driving device is arranged in the five-axis cradle turntable 3 to realize the rotation positioning of an A axis and a B axis, a workpiece and a clamp tool are arranged on the five-axis cradle turntable 3, and the rotation positioning machining of an AB two-axis driving work and the clamp tool is realized; one side of the rear base is fixedly connected with a tool magazine frame system 7, the inner side of the bottom of the tool magazine frame system 7 is fixedly connected with a tool changing device 6, and the tool magazine frame system 7 is fixed with the rear base through a fixing frame and M24 screws and is fixed with the tool changing device 6; the rear base is fixedly provided with a Z-axis sliding guide rail 15 which is horizontally installed, the Z-axis sliding guide rail 15 is connected with a stand column 9 through a Z-axis driving assembly 16, the stand column 9 adopts an integrally cast 'mouth' -shaped structure, the lower end of the stand column is fixed with a Z-axis transmission device bracket, and the upper end of the stand column is fixed with a Y-axis fixing frame through M24 screws. The upright post 9 moves back and forth through a Z-axis sliding guide rail 15, a Y-axis driving device 8 is vertically arranged on the upright post 9, a Y-axis sliding guide rail 17 is arranged at one end, close to the X-axis driving device 2, of the Y-axis driving device 8, a supporting plate device 10 is arranged on the Y-axis sliding guide rail 17 in a sliding manner, and a grinding wheel tool assembly 13 and a trimming roller assembly 12 are arranged in the supporting plate device 10; one side of the supporting plate device 10 is provided with a numerical control double-shaft cooling device 11, and the other side is provided with a trimming cooling assembly 14.
Specifically, the X-axis driving device 2 comprises an X-axis ball linear guide 18, a workbench assembly 4 is slidably arranged on the X-axis ball linear guide 18, the workbench assembly 4 comprises a workbench 21, an X-axis ball screw 19 is arranged at the bottom of the workbench 21, one end of the X-axis ball screw 19 is in transmission connection with an X-axis driving servo motor 20, and a screw nut on the X-axis ball screw 19 is fixedly connected with the bottom of the workbench 21.
The workbench 21 is formed by integral casting and is divided into an upper workbench and a lower workbench, wherein the lower workbench is provided with an 18 roller guide rail, namely an X-axis ball linear guide rail, the upper workbench is arranged on a sliding block of the 18 roller guide rail, the bottom of the lower workbench is fixedly connected with the front base, the X-axis ball linear guide rail 18 is arranged on the lower workbench, and the bottom of the upper workbench is connected with the X-axis ball linear guide rail 18 through the sliding block; the Z-axis ball screw 19 is arranged between the upper workbench and the lower workbench; the five-axis cradle turntable 3 is fixedly arranged on the upper workbench.
One side of the five-axis cradle turntable 3, which is far away from the upright post 9, is provided with a desk type trimming device 5, the desk type trimming device 5 comprises a desk type trimming installation seat fixedly arranged on an upper workbench, a desk type trimming servo motor 22 is arranged in the desk type trimming installation seat, the bottom of the desk type trimming servo motor 22 is connected with a desk type trimming rotary shaft 24 through a desk type trimming belt pulley 23 in a transmission manner, the top of the desk type trimming rotary shaft 24 is fixedly provided with a desk type trimming roller 26, and the upper end and the lower end of the desk type trimming rotary shaft 24 are respectively supported and arranged in the desk type trimming installation seat through desk type trimming bearings 25.
The tool changing device 6 comprises a tool changing device mounting seat, a first tool changing ball guide rail 28 which is vertical to the tool magazine frame system 7 and is horizontally arranged is arranged on the tool changing device mounting seat, a fixing frame is arranged on the first tool changing ball guide rail 28 in a sliding manner, a first tool changing servo motor 29 is fixedly arranged on the fixing frame, a tool arm mounting device is connected with the first tool changing servo motor 29 in a transmission manner, a second tool changing ball guide rail 32 which is vertical to the first tool changing ball guide rail 28 is fixedly arranged on the tool arm mounting device, two groups of tool arm devices 30 are arranged on the second tool changing ball guide rail 32 in a sliding manner, each group of tool arm devices 30 comprises two tool arms which are symmetrically arranged up and down, tool claws 31 are arranged at the tail ends of the tool arms through pneumatic clamps, the tool claws 31 are used for clamping tools 33, and the tool claws 31 of the two groups of tool arm devices 30 are respectively positioned at two ends of the tool arm mounting device; the cutter arm is connected with a cutter arm driving motor 34, and the cutter arm driving motor 34 can drive the cutter arm to move along the second cutter changing ball guide rail 32; the bottom of the fixing frame is connected with a tool changing ball screw nut pair 27, the tail end of the tool changing ball screw nut pair 27 is connected with a second tool changing servo motor 35, and the second tool changing servo motor 35 can drive the fixing frame to move back and forth along the first tool changing ball guide rail 28 through the tool changing ball screw nut pair 27.
The support plate device 10 comprises a V-shaped structural body which is slidably arranged with the Y-axis sliding guide rail 17, the front end of the V-shaped structural body is fixedly connected with a support plate 37, the rear end of the support plate 37 is fixedly connected with a first driving motor 36 through a connecting frame, the front end of the support plate 37 is provided with a first driving body device 43, the first driving body device 43 is arranged at the front end of the support plate 37 through a plurality of bearings, the rear end of the first driving body device 43 is in transmission connection with the first driving motor 36 through a connector 46, and the front end of the first driving body device 43 is in transmission connection with a main grinding wheel 44 of the grinding wheel tool assembly; the upper end of the supporting plate 37 is fixedly connected with a V-axis fixing frame 48, a second driving main body device 41 is arranged in an inner cavity of the V-axis fixing frame 48, the second driving main body device 41 is positioned above the first driving main body device 43, the front end of the second driving main body device 41 is connected with a trimming roller 42 of a trimming roller assembly, the rear end of the second driving main body device 41 is connected with a second driving motor 38 through a belt 45 in a transmission manner, a sliding plate device 47 is arranged on the V-axis fixing frame 48, the second driving main body device 41 and the second driving motor 38 are fixedly arranged on the sliding plate device 47, the sliding plate device 47 is connected with a sliding plate ball screw pair 40, and the upper end of the sliding plate ball screw pair 40 is connected with a sliding plate ball screw driving motor 39 in a transmission manner. The second driving body device 41 is connected and positioned with the dressing roller 42 by adopting a 1:10 structure.
One side of the numerical control double-shaft cooling device 11 is fixedly connected with the supporting plate 37 through a fixing plate 49, the numerical control double-shaft cooling device 11 comprises an up-down moving module 63 and a left-right moving module 50, the bottom of the left-right moving module 50 is connected with a nozzle assembly 59, the nozzle assembly 59 comprises a nozzle 60, a chip blocking sheet metal plate 61 is fixedly arranged at the upper end of the nozzle 60, a high-pressure water spraying inlet pipe 62 is arranged on the right side of the chip blocking sheet metal plate 61, and the high-pressure water spraying inlet pipe 62 is communicated with the nozzle 60; the left-right moving module 50 and the up-down moving module 63 can drive the nozzle assembly 59 to move left-right or up-down. Specifically, the left-right movement module 50 is connected to the left-right ball screw pair 56 by a left-right movement motor 54 via a left-right belt pulley 55, and guided by a left-right linear ball guide 57, so that the left-right movement module 50 moves linearly in the left-right direction, and when the left-right movement module 50 moves left-right, the up-down movement module follows the synchronous left-right movement, and after moving in place, the up-down movement module 63 is driven by an up-down movement servo motor 53 to be connected via an up-down belt pulley assembly 52, so that the up-down ball screw pair 51 is driven, and guided by an up-down ball linear guide 58 so as to move linearly up-down. The lower end of the left-right moving module 50 is fixed with the nozzle assembly 59 by 6 screws and positioning pins, so that the left-right and up-down movement of the left-right moving module can drive the nozzle assembly to move left-right and up-down.
The trimming cooling assembly 14 comprises a fixing frame 70 fixedly connected with one side of the supporting plate 37, a connecting block 64 is fixedly arranged on the fixing frame 70, two guide rods 65 are inserted on the connecting block 64, a fixing plate 66 is connected to the bottom of the guide rods 65, a water inlet block 67 is fixedly connected to the bottom of the fixing plate 66 through screws, and a trimming cooling nozzle 71 is connected to one side of the water inlet block 67 through threads; a driving box body 68 is arranged between the two guide rods 65, the bottom of the driving box body 68 is connected with a fixed plate 66 through a screw rod, a power source device is arranged in the driving box body 68, and the power source device is connected with an external power supply through an outgoing line sleeve 69.
Two universal cooling assemblies 72 are symmetrically arranged on two sides of the supporting plate 37, and the universal cooling assemblies 72 are connected with a high-pressure cooling system through high-pressure water pipes. The grinding wheel tool assembly can be provided with a cutter which is a grinding wheel, and also can be provided with a drill bit assembly, a milling cutter assembly and a measuring head assembly which are of 1:10 structures. When the grinding wheel tool assembly is provided with a drill bit or a milling cutter, the universal cooling assembly is started, and the numerical control bidirectional cooling system is shut down. And when the grinding wheel tool assembly is mounted with the measuring head, the universal cooling assembly 72 and the digitally controlled bi-directional cooling system are both off. The processing tool which is installed on the grinding wheel tool assembly is judged by scanning the outer diameter through a photoelectric detection switch installed in the tool magazine assembly and is fed back to the numerical control operation system. Cooling water is sprayed through the universal cooling assembly 72 toward the drill bit or mill when the universal cooling assembly is activated.
In the working process of the invention, a workpiece to be ground is firstly clamped on a fixture of the five-axis cradle turntable 3, the five-axis cradle turntable 3 is rotated according to the processing requirement to rotate and move the X-axis driving device 2, the Y-axis driving device 8 and a Z-axis part at the lower end of the upright post 9, the workpiece is moved to the position of the grinding wheel tool assembly 13, the grinding wheel tool assembly 13 is used for aligning the position of the workpiece to be ground, the first driving motor 36 is started, the rotation of the first driving main body device 43 is driven to rotate so as to drive the main grinding wheel 44 to rotate, at the moment, the double-shaft cooling device 11 is simultaneously started, the up-down movement module 63 and the left-right movement module 50 are moved and drive the nozzle 60, the nozzle 60 is sprayed with high-pressure cooling liquid in the tangential direction of the grinding wheel grinding position, and the main grinding wheel 44 can be rotated to perform high-precision grinding on the workpiece.
After the main grinding wheel 44 is replaced, the system detects the diameter of the grinding wheel through a photoelectric sensing switch, data is fed back to a numerical control operation system, and the system automatically controls the up-and-down movement servo motor 53 and the left-and-right movement motor 54, so that the nozzle 60 is driven to move in the left-and-right direction and the up-and-down direction. The nozzle 60 is always aligned with the tangential direction of the grinding wheel grinding workpiece. Thereby achieving the most effective cooling effect. Ensure that the large-flow and large-pressure cooling water cools the workpiece and the grinding position of the grinding wheel. The grinding heat generated at the surface of the workpiece is carried away by the cooling liquid in the fastest way.
When the drill bit 73 or the milling cutter is replaced, the universal cooling assembly 72 is started, the universal cooling assembly 72 is fixed in the groove of the supporting plate 37, the rear end of the universal cooling assembly 72 is connected with a high-pressure water pipe of a high-pressure cooling system, the universal cooling assembly 72 is divided into a left group and a right group, and the left group and the right group are respectively positioned on two sides of the front end of the supporting plate 37. The main grinding wheel 44 can be provided with a cutter as a grinding wheel, and also can be provided with a drill bit assembly, a milling cutter assembly and a measuring head assembly which are in a 1:10 structure. When a drill or mill is mounted in the grinding wheel tool assembly 13, the universal cooling assembly 72 is activated and the digitally controlled dual spindle cooling device 11 is turned off. While the universal cooling assembly 72 and the digitally controlled dual-axis cooling device 11 are both closed when the measuring head is mounted at the location of the main grinding wheel 44. What kind of machining tool is installed at the position of the main grinding wheel 44 is determined by scanning the outer diameter through a photoelectric detection switch installed in the tool magazine rack system 7 and fed back to the numerical control operation system.
Upon activation of the universal cooling assembly 72, cooling water is sprayed through the universal cooling assembly 72 toward the drill bit 73 or the milling cutter. When the main grinding wheel 44 assembly is required to grind the workpiece by the dressing roller 42, that is, the diamond dressing wheel, and dressing the workpiece, the slide plate device 47 drives the slide plate ball screw pair 40 to linearly move up and down by the slide plate ball screw driving motor 39 and drives the dressing roller 42 to linearly move up and down along the V-axis as a whole, and simultaneously the second driving motor 38 drives the second driving body device 41 to rotate. Thereby driving the dressing sand 42 to rotate, and realizing the dressing of the main grinding wheel 44 while grinding the workpiece and the dressing roller 42. During dressing, the dressing cooling module 14 is activated to move the nozzle 71 to the tangential position of the dressing wheel, i.e. the joint of the dressing wheel and the grinding wheel in the vertical direction, and perform strong cooling spraying. The dressing cooling assembly 14 has high pressure and low pressure cooling, with high pressure cooling when diamond roller dressing is used and low pressure cooling when non-diamond roller dressing is used.
When other grinding wheels or cutters in the cutter magazine frame system 7 are replaced, the cutter magazine door is pushed to be opened through an air cylinder, a servo motor in the cutter magazine frame system 7 rotates the required grinding wheels or cutters to the position to be changed, the cutter changing device 6 starts to be started, the second cutter changing servo motor 35 drives the whole cutter changing device to the rearmost side, the first cutter changing servo motor 29 rotates the whole cutter claw assembly to the 90-degree position, a group of cutter claws above the cutter claw assembly are pushed upwards through servo driving and are inserted into V-shaped grooves of the required cutters, the clamping air cylinder at the cutter claws 31 clamps and withdraws the required cutters to the original position, and then the second cutter changing servo motor 35 drives the whole cutter changing device to the foremost side. The first tool changing servo motor 29 rotates the whole tool arm mechanism to rotate 90 degrees anticlockwise, at this time, the other tool setting claw 31 is positioned on the right side of the tool arm, and is driven by the servo motor to move towards the right grinding wheel spindle and the dressing wheel spindle, and simultaneously the grinding wheel cutter handle and the dressing wheel cutter handle are simultaneously grabbed and pulled out together, at this time, the first tool changing servo motor 29 is started, the tool arm group is rotated 180 degrees, and a required grinding wheel or tool is inserted into the grinding wheel spindle and the dressing wheel spindle. The first tool changing servo motor 29 continues to rotate the tool arm set clockwise 90 and the second tool changing servo motor 35 drives the tool arm set to the rearmost side and the replaced wheel dressing wheel is placed back into the magazine position.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (6)
1. Sixteen-axis numerical control five-axis linkage precise milling and grinding machining center is characterized in that: the device comprises a base, wherein the base comprises a front base and a rear base, an X-axis driving device is arranged on the front base, a workbench is arranged on the X-axis driving device, a five-axis cradle turntable is arranged on the workbench, and the five-axis cradle turntable is used for installing a workpiece and a clamp; a tool magazine frame system is fixedly connected to one side of the rear base, and a tool changing device is fixedly connected to the inner side of the bottom of the tool magazine frame system; the rear base is fixedly provided with a Z-axis sliding guide rail which is horizontally installed, the Z-axis sliding guide rail is connected with an upright post through a Z-axis driving assembly, a Y-axis driving device is vertically arranged on the upright post, one end, close to the X-axis driving device, of the Y-axis driving device is provided with a Y-axis sliding guide rail, the Y-axis sliding guide rail is provided with a supporting plate device in a sliding manner, and a grinding wheel tool assembly and a trimming roller assembly are arranged in the supporting plate device; one side of the supporting plate device is provided with a numerical control double-shaft cooling device, and the other side of the supporting plate device is provided with a trimming cooling assembly; the tool changing device comprises a tool changing device mounting seat, a first tool changing ball guide rail which is vertical to the tool magazine frame system and is horizontally arranged is arranged on the tool changing device mounting seat, a fixing frame is arranged on the first tool changing ball guide rail in a sliding mode, a first tool changing servo motor is fixedly arranged on the fixing frame, a tool arm mounting device is connected with the first tool changing servo motor in a transmission mode, a second tool changing ball guide rail which is vertical to the first tool changing ball guide rail is fixedly arranged on the tool arm mounting device, two groups of tool arm devices are arranged on the second tool changing ball guide rail in a sliding mode, each group of tool arm devices comprises two tool arms which are symmetrically arranged up and down, tool claws are arranged at the tail ends of the tool arms through pneumatic clamps, and the tool claws of the two groups of tool arm devices are respectively positioned at two ends of the tool arm mounting device; the cutter arm is connected with a cutter arm driving motor, and the cutter arm driving motor can drive the cutter arm to move along the second cutter changing ball guide rail; the bottom of the fixing frame is connected with a tool changing ball screw nut pair, the tail end of the tool changing ball screw nut pair is connected with a second tool changing servo motor, and the second tool changing servo motor can drive the fixing frame to move back and forth along the first tool changing ball guide rail through the tool changing ball screw nut pair; the support plate device comprises a V-shaped structural body which is slidably arranged on the Y-axis sliding guide rail, the front end of the V-shaped structural body is fixedly connected with a support plate, the rear end of the support plate is fixedly connected with a first driving motor through a connecting frame, the front end of the support plate is provided with a first driving body device, the first driving body device is arranged at the front end of the support plate through a plurality of bearings, the rear end of the first driving body device is in transmission connection with the first driving motor through a connector, and the front end of the first driving body device is in transmission connection with the grinding wheel tool assembly; the upper end of the supporting plate is fixedly connected with a V-axis fixing frame, a second driving main body device is arranged in an inner cavity of the V-axis fixing frame and positioned above the first driving main body device, the front end of the second driving main body device is connected with a trimming roller assembly, the rear end of the second driving main body is connected with a second driving motor through belt transmission, a sliding plate device is arranged on the V-axis fixing frame, the second driving main body device and the second driving motor are fixedly arranged on the sliding plate device, the sliding plate device is connected with a sliding plate ball screw pair, and the upper end of the sliding plate ball screw pair is in transmission connection with a sliding plate ball screw driving motor; the trimming cooling assembly comprises a fixing frame fixedly connected with one side of the supporting plate, a connecting block is fixedly arranged on the fixing frame, two guide rods are inserted into the connecting block, the bottoms of the guide rods are connected with a fixing plate, the bottoms of the fixing plate are fixedly connected with a water inlet block through screws, and one side of the water inlet block is connected with a trimming cooling nozzle in a threaded manner; a driving box body is arranged between the two guide rods, the bottom of the driving box body is connected with the fixing plate through a screw rod, and a power source device is arranged in the driving box body.
2. The sixteen-axis numerically-controlled five-axis linkage precision milling machining center according to claim 1, wherein: the X-axis driving device comprises an X-axis ball linear guide rail, the workbench is arranged on the X-axis ball linear guide rail in a sliding mode, a ball screw is arranged at the bottom of the workbench, one end of the ball screw is connected with an X-axis driving servo motor in a transmission mode, and a screw nut on the ball screw is fixedly connected with the bottom of the workbench.
3. The sixteen-axis numerically-controlled five-axis linkage precision milling machining center according to claim 2, wherein: the workbench comprises an upper workbench and a lower workbench, the bottom of the lower workbench is fixedly connected with the front base, the X-axis ball linear guide rail is arranged on the lower workbench, and the bottom of the upper workbench is connected with the X-axis ball linear guide rail through a slide block; the ball screw is arranged between the upper workbench and the lower workbench; the five-axis cradle turntable is fixedly arranged on the upper workbench.
4. The sixteen-axis numerically-controlled five-axis linkage precision milling machining center according to claim 3, wherein: the five cradle turntables are far away from one side of the upright post, a table type trimming device is arranged on one side of the upright post, the table type trimming device comprises a table type trimming installation seat fixedly arranged on the upper workbench, a table type trimming servo motor is arranged in the table type trimming installation seat, the bottom of the table type trimming servo motor is connected with a table type trimming rotary shaft through a belt pulley, a table type trimming roller is fixedly arranged at the top of the table type trimming rotary shaft, and the upper end and the lower end of the table type trimming rotary shaft are respectively supported and arranged in the table type trimming installation seat through table type trimming bearings.
5. The sixteen-axis numerically-controlled five-axis linkage precision milling machining center according to claim 1, wherein: one side of the numerical control double-shaft cooling device is fixedly connected with the supporting plate through a fixed plate, the numerical control double-shaft cooling device comprises an up-and-down moving module and a left-and-right moving module, the bottom of the left-and-right moving module is connected with a nozzle assembly, the nozzle assembly comprises a nozzle, the upper end of the nozzle is fixedly provided with a chip blocking sheet metal, the right side of the chip blocking sheet metal is provided with a high-pressure water spraying inlet pipe, and the high-pressure water spraying inlet pipe is communicated with the nozzle; the left-right moving module and the up-down moving module can drive the nozzle assembly to move left and right or up and down.
6. The sixteen-axis numerically-controlled five-axis linkage precision milling machining center according to claim 1, wherein: two universal cooling assemblies are symmetrically arranged on two sides of the supporting plate, and the universal cooling assemblies are connected with a high-pressure cooling system through high-pressure water pipes.
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| CN202210046748.XA CN114310419B (en) | 2022-01-17 | 2022-01-17 | Sixteen-axis numerical control five-axis linkage precise milling and grinding machining center |
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| CN202210046748.XA CN114310419B (en) | 2022-01-17 | 2022-01-17 | Sixteen-axis numerical control five-axis linkage precise milling and grinding machining center |
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| CN114310419B true CN114310419B (en) | 2023-07-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2897542Y (en) * | 2005-12-28 | 2007-05-09 | 广州市敏嘉制造技术有限公司 | Digital-controlled internal screw grinding center |
| JP2012183629A (en) * | 2011-03-04 | 2012-09-27 | Washino Kiko Kk | Tool exchanger |
| CN106624189A (en) * | 2016-11-30 | 2017-05-10 | 重庆兴旺工具制造有限公司 | Numerical control grinder for forming machining |
| CN111152134A (en) * | 2020-01-21 | 2020-05-15 | 科德数控股份有限公司 | Grinding wheel dresser |
| CN112355816A (en) * | 2020-11-26 | 2021-02-12 | 杭州莱格曼特科技有限公司 | Novel five-axis linkage grinding center |
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