CN102357677A - Large-scale high-efficiency numerically-controlled hobbing machine - Google Patents
Large-scale high-efficiency numerically-controlled hobbing machine Download PDFInfo
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- CN102357677A CN102357677A CN2011103366533A CN201110336653A CN102357677A CN 102357677 A CN102357677 A CN 102357677A CN 2011103366533 A CN2011103366533 A CN 2011103366533A CN 201110336653 A CN201110336653 A CN 201110336653A CN 102357677 A CN102357677 A CN 102357677A
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Abstract
The invention relates to a large-scale high-efficiency numerically-controlled hobbing machine, which comprises a base (1), a workbench (2) and a workbench driving device (6), wherein the workbench (2) is arranged on the base (1); and the workbench driving device (6) is arranged between the base (1) and the workbench (2), and can drive the workbench (2) to perform rotary motions. A lathe bed (3), an upright post (4) and an upright post guide surface driving device (7) are also arranged beside the workbench (2), wherein the upright post (4) is arranged on the lathe bed (3); and the upright post guide surface driving device (7) is arranged between the lathe bed (3) and the upright post (4), and can drive the upright post (4) to perform forward-backward reciprocal motions. An upright post guide surface (5), a sliding seat driving device (8) and a cutting device (9) are arranged on the upright post (4), wherein the sliding seat driving device (8) is arranged on the upright post guide surface (5); and the cutting device (9) can perform up-and-down reciprocal motions along the upright post guide surface (5) under the action of the sliding seat driving device (8). The large-scale high-efficiency numerically-controlled hobbing machine has the advantages of improving the accuracy of a lathe, increasing the machining speed of the lathe, producing huge economic benefits and realizing high-speed dry cutting.
Description
Technical field
The present invention relates to a kind of chain digital control gear hobbing machine, especially relate to a kind of large-scale efficient numerically controlled gear-hobbing machine.
Background technology
Large gear is industry and important mechanical transmission components such as mine, cement, building materials, harbour machinery; And being processed in traditional gear-hobbing machine processing of large gear is too slow; A gear needs the time of a wheat harvesting period to accomplish sometimes, and along with development of science and technology, digital control system, ball screw are to the extensive use that detects the grating chi; Rapid processing to large-scale gear hobbing machine has proposed more and more urgent requirement, is mainly reflected in efficient, high accuracy and environmental protection processing.And traditional large-scale gear hobbing machine is difficult to reach this requirement owing to driving-chain is oversize, and rolling cut speed is too slow.The present invention has then solved an above-mentioned difficult problem, and the present invention has removed the required gear-box of traditional large-scale gear hobbing machine, transmission polished rod, parts such as auxiliary transmission.Be connected with digital control system, servomotor, ball wire bar pair, reductor etc., tool-post structure, slide are strengthened thickening.On tool-post structure, be designed with gearbox slide plate fluid drive is produced revolution, alleviate working strength of workers and the precision that improves product.The operator support body is directly loaded onto the servomotor of 100KW or 75KW, and the dish milling cutter high-rate cutting of drive garden has solved the too slow difficult problem of large gear processing.
Summary of the invention
The present invention solves above-mentioned existing in prior technology technical problem; A kind of foozle that can eliminate the oversize driving-chain of traditional in the past gear-hobbing machine is provided; And gap and rigging error are to the influence of Gear Processing precision; Eliminated the influence of change gear to processing; No longer use change gear, only need on operating display, to import related datas such as modulus, the number of teeth, spiral angle and get final product, can significantly improve a kind of large-scale efficient numerically controlled gear-hobbing machine of the process velocity of lathe by the requirement of drawing.
Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals:
A kind of large-scale efficient numerically controlled gear-hobbing machine is characterized in that, comprise base, be arranged on the workbench on the base and be located at base and workbench between and can drive the Working table driving device that workbench rotates; Said workbench is other also to be provided with lathe bed, be arranged on the column on the lathe bed and be arranged on lathe bed and column between and can drive the column drive unit that column is done front-rear reciprocation movement; Said column is provided with the column guide pass, is arranged on the slide drive unit on the column guide pass and can makees the topping machanism that pumps at the effect lower edge of slide drive unit column guide pass.
Driving-chains such as frame for movement of the present invention is simple, the gearbox before having removed, polished rod, workbench links to each other with reduction box with servomotor, the drive worm gear; Make the workbench even running, column drives operation before and after the ball screw through servomotor on lathe bed, and slide plate links to each other with ball screw through servomotor on column and moves up and down; With reductor mutually continuous cropping positive and negative 45 the degree rotatablely move; The high-rate cutting frame carries out high-rate cutting with cutterhead on slide plate, carry out rolling cut with hobboing cutter, through above change; Improved the integral rigidity of lathe; Solved the wear problem of gear-hobbing machine driving-chain in the past, improved precision, the retentivity of large-scale gear hobbing machine, made cutting and the rolling cut speed of high-rate cutting chain digital control gear hobbing machine greater than the cutting and the rolling cut speed of traditional gear-hobbing machine; Shortened cutting and rolling cut time significantly, made original wet shear become dried and cut.
At above-mentioned large-scale efficient numerically controlled gear-hobbing machine, described Working table driving device comprises the hydrostatic spindle that is arranged on the base, be set on the hydrostatic spindle and with the worm gear of said stationary table, the worm screw that cooperates with worm gear and the workbench servomotor that drives worm movement.
At above-mentioned large-scale efficient numerically controlled gear-hobbing machine, described column drive unit comprises bed ways face ball screw axle, matching with said bed ways face ball screw axle merges the bed ways face ball screw that is connected with said column guide pass and drive the bed ways surface servo motor that said bed ways face ball screw axle moves.
At above-mentioned large-scale efficient numerically controlled gear-hobbing machine, described slide drive unit comprises a up-down ball screw axle, matching with up-down ball screw axle merges the up-down ball screw of fixing with said topping machanism and drive the up-down servomotor that said up-down ball screw axle moves.
At above-mentioned large-scale efficient numerically controlled gear-hobbing machine, the slide that described topping machanism comprises tool-post structure and is arranged on the tool-post structure rear end, said slide and above-mentioned up-down ball screw connect and can under the driving of cutting drive unit, do and pump; Said tool-post structure one end is provided with cutting spindle, the slide bull gear that the other end is provided with gear and matches with this gear.
At above-mentioned large-scale efficient numerically controlled gear-hobbing machine, described topping machanism also is provided with the cutting reductor, and said slide bull gear main shaft is fixed on the said slide and can under the driving of cutting reductor, drives said tool-post structure along circumferentially doing positive and negative 45 ° of rotations.
At above-mentioned large-scale efficient numerically controlled gear-hobbing machine, be provided with two guide pass on described lathe bed and the column.
At above-mentioned large-scale efficient numerically controlled gear-hobbing machine; This large-scale efficient numerically controlled gear-hobbing machine also comprises a chip removal delivery apparatus, and described chip removal delivery apparatus comprises and somely is arranged on the chip removal mouth of lathe bed bottom and is arranged on the conveyer belt that chip removal mouth below is used to transport the chip removal thing.
At above-mentioned large-scale efficient numerically controlled gear-hobbing machine, this large-scale efficient numerically controlled gear-hobbing machine comprises that also one is used to control the interior servomotor of above-mentioned drive unit and the control system of reductor.
At above-mentioned large-scale efficient numerically controlled gear-hobbing machine; This large-scale efficient numerically controlled gear-hobbing machine comprises that also one is arranged on said workbench top and connects the additional work platform that is used for the machining large workpiece with said workbench; The auxiliary shoring system that is used to support the additional work platform with some is also established in said additional work platform lower surface; Said auxiliary shoring system comprises that a ground rail and an end are arranged on the some support bars on the ground rail; Said post upper is provided with support roller, and said support roller contacts with said additional work platform lower surface.
Therefore, the present invention has following advantage: 1. avoided the error that the machinery driving-belt comes when the machining large large module gear, improved the precision of lathe; 2. the cutting blade motor with main carriage is designed to 75KW and 100KW confession user selection, forms high-rate cutting, has improved process velocity greatly, has produced huge economic benefit; 3. can carry out the high speed and dry cutting; 4. can adjust the rotating speed and the depth of cut at any time in process.
Description of drawings
Accompanying drawing 1 is a kind of structure principle chart of the present invention.
Accompanying drawing 2 is main TV structure sketch mapes of main carriage of the present invention.
Accompanying drawing 3 is that the TV structure sketch map is looked on the left side of Fig. 2.
Accompanying drawing 4 is main TV structure sketch mapes of figure workbench of the present invention.
Accompanying drawing 5 is main TV structure sketch mapes of figure lathe bed of the present invention.
Accompanying drawing 6 is plan structure sketch mapes of Fig. 5.
Accompanying drawing 7 is the guide rail master TV structure sketch mapes between workbench bottom and the hydrostatic spindle.
The specific embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.Among the figure, base 1, workbench 2, lathe bed 3, column 4, column guide pass 5, Working table driving device 6, hydrostatic spindle 601, worm gear 602, worm screw 603, workbench servomotor 604, column drive unit 7, bed ways face ball screw axle 701, bed ways face ball screw 702, bed ways surface servo motor 703, slide drive unit 8, up-down ball screw axle 801, up-down ball screw 802, up-down servomotor 803, topping machanism 9, tool-post structure 901, slide 902, cutting spindle 903, cutting reductor 904, chip removal delivery apparatus 10, chip removal mouth 1001, conveyer belt 1002, additional work platform 11, auxiliary shoring system 12, rail 13, support bar 14, support roller 15, control system 16.
Embodiment:
A kind of large-scale efficient numerically controlled gear-hobbing machine, comprise base 1, be arranged on the workbench 2 on the base 1 and be located at base 1 and workbench 2 between and can drive the Working table driving device 6 that workbench 2 rotates; Workbench 2 is combined by floral disc, worm gear and ring-shaped guide rail, and said workbench 2 is other also to be provided with lathe bed 3, be arranged on the column 4 on the lathe bed 3 and be arranged on lathe bed 3 and column 4 between and can drive the column drive unit 7 that column 4 is done front-rear reciprocation movement; Said column 4 is provided with column guide pass 5, is arranged on the slide drive unit 8 on the guide pass 5 and can makees the topping machanism 9 that pumps by column guide pass 5 in the effect lower edge of slide drive unit 8.Base 1 is a major part of the present invention; Guide rail and lubrication management oil pocket, oil groove are arranged on the base 1; Main effect is support table 2 and the processing parts that pressed; Maximum workpiece supporting power can reach 100 tons, a worm screw and servomotor far is housed on the base 1 links to each other with worm gear on the workbench 2 and rotate, and promptly Working table driving device 6; Workbench 2 is by floral disc, worm gear, guide rail, pressing plate and the workbench center of circle, and compositions such as cover plate mainly act on through worm and gear and reduction box and servomotor is direct-connected rotates.
The workbench servomotor 604 that Working table driving device 6 comprises the hydrostatic spindle 601 that is arranged on base 1 bottom, be set on the hydrostatic spindle 601 and move with said workbench 2 fixing worm gear 602, the worm screw 603 that cooperates with worm gear 602 and driving worm screws 603; Hydrostatic spindle 601 is installed on the base; Be provided with guide rail between base 1 bottom and the hydrostatic spindle 601; On hydrostatic spindle 601, be covered with the static pressure oil pocket; Workbench 2 is enclosed within on the hydrostatic spindle 601, and the worm screw case is contained on the workbench side, and worm bracket is made up of worm screw, main shaft, endless screw support and copper sheathing etc.; It is 120mm that a diameter is housed on the lathe bed, and long about 9 meters ball screw seesaws through servomotor and the direct-connected drive column of reductor.The column body mainly is made up of column, top cover, ball screw, servomotor, counterweight, pulley, panel, pressing plate, and it mainly moves do oscilaltion by driving slide.Slide mainly is made up of slide plate and bull gear, links to each other through reductor and the servomotor of being adorned on the high-rate cutting knife rest.Do positive and negative 45 degree rotation gyrations, translation-angle.Column drive unit 7 comprises bed ways face ball screw axle 701, matching with said bed ways face ball screw axle 701 merges the bed ways face ball screw 702 that is connected with said column guide pass 5 and drive the bed ways surface servo motor 703 that said bed ways face ball screw axle 701 moves; Cutting drive unit 8 comprises a up-down ball screw axle 801, matching with up-down ball screw axle 801 merges up-down ball screw of fixing with said topping machanism 9 802 and the up-down servomotor 803 that drives said up-down ball screw axle 801 motions.
Topping machanism 9 comprises tool-post structure 901 and is arranged on tool-post structure 901 rear end slide plates 902 that said slide plate 902 connects with above-mentioned up-down ball screw 802 and can under the driving of cutting drive unit 8, do and pumps; Said tool-post structure 901 front ends are provided with cutting spindle 903; The slide bull gear that the other end is provided with gear and matches with gear; Topping machanism 9 also is provided with cutting reductor 904, and said slide bull gear is fixed on the said slide 902 and can under the driving of cutting reductor 904, drives said tool-post structure 901 along circumferentially doing positive and negative 45 ° of rotations. Be provided with two guide pass on lathe bed 3 and the column 5.Topping machanism 9 is a numerical control strong bite support body; It is by carriage saddle, head cap end.Three supports, related components such as big modulus travelling gear, copper sheathing, servomotor and cutting spindle are formed, with garden dise knife machinable, but with the hobboing cutter rolling cut.The additional work platform is made up of three parts, and intermediate host is an integral body that does not surpass 4.5 meters, and the right and left disposes two equal parts as required respectively.Be connected on the main body with screw and pin, its effect is to guarantee that big part does not rebound when high-rate cutting, and the area of workbench is increased.Supplemental support and ground rail: supplemental support is made up of related components such as circle roller, support, oil cylinder, pads; It can move on the ground rail; The ground rail fixes on the ground, is processed with one of T-slot on the ground rail, and its effect supports the additional work platform; Usually between 10-24, it does corresponding increase and decrease according to the diameter of additional work platform to supplemental support.
The present invention also comprises a chip removal delivery apparatus 10; Described chip removal delivery apparatus 10 comprises that several are arranged on the chip removal mouth 1001 of lathe bed 3 bottoms and are arranged on the conveyer belt 1002 that chip removal mouth 1001 belows are used to transport the chip removal thing, also has one to be used for the interior servomotor of accessory drive and the control system 16 of reductor.Chip removal mouth 1001 is the chip removal mouth of band V-type funnel, machine cut with iron filings from/the type funnel falls down, and conveyer belt arranged below the lathe bed, the iron filings that fall down are transported in the metal bucket.
Digital control system and electric system: large-scale efficient numerically controlled gear-hobbing machine digital control system 16 of the present invention adopts Siemens's 840 digital control systems or French NUM axiom power1050HG digital control system, comprises tetrad Electric Appliance Cabinet etc.Servomotor comprises the workbench rotating servo motor; The lathe bed servomotor that seesaws; Column oscilaltion motion servo motor, main carriage cutting rolling cut servomotor, these five motors of tool-post structure rotary servovalve motor cooperate above-mentioned digital control system can realize that five tetrads are moving; Accomplish required cutting and the rolling cut function of the design, it can do straight-tooth, helical teeth and herringbone bear.
In order to adapt to the processing of bigger workpiece; This programme comprises that also one is arranged on workbench 2 tops and connects the additional work platform 11 that is used to cut large-scale workpiece with said workbench 2; The auxiliary shoring system 12 that is used to support additional work platform 11 with some is also established in additional work platform 11 lower surfaces; Auxiliary shoring system 12 systems comprise that a ground rail 13 and an end are arranged on the some support bars 14 on the ground rail 13, and support bar 14 upper ends are provided with support roller 15, and support roller 15 contacts with additional work platform 11 lower surfaces.
Reductor of the present invention is contained in following position respectively:
With the worm screw case on main shaft directly related moving workbench rotate, it is contained in the base side.
With lathe bed on ball wire bar pair direct-connected, drive column and seesaw, it is contained in the back of lathe bed.
3. direct-connected with ball wire bar pair on the column top, drive slide and do the oscilaltion campaign,
It is contained in the column body above.
4. in tool-post structure, link to each other and drive the gyration that slide is done positive and negative 45 degree with main shaft, gear.
The present invention is designed with three big hydraulic pressure and lubrication box in addition, through with lathe on copper pipe, rubber tube link to each other and oil be transported to each position of designing institute needs, in oil groove, the oil pocket, large-scale efficient numerically controlled gear-hobbing machine of the present invention is lubricated and fuel feeding.Counterweight is contained in the column body, through the pull bar of being adorned on the counterweight, links to each other with slide with two pierce taps, makes slide and tool-post structure keep balance.
3 meters-----18 meters effect principles of large-scale efficient numerically controlled gear-hobbing machine of the present invention's design are embodied in the following aspects:
1. precision and benefit: the large-scale efficient numerically controlled gear-hobbing machine of the present invention's design; Cancelled the isometric traditional chain of main-gear box, change gear, polished rod, screw mandrel, power transmission shaft, secondary transmission case on traditional large-scale gear hobbing machine; It is direct-connected to be designed to servomotor, and reductor and worm screw main shaft, servomotor are direct-connected with reductor and ball wire bar pair on lathe bed; Servomotor is direct-connected with reductor and ball wire bar pair on column; Add the compensation of digital control system, avoided the error that the machinery driving-belt comes when the machining large large module gear, improved the precision of lathe.Because knife rest has been carried out design again; Travelling gear in the tool-post structure modulus 5 and modulus 6 have been become by original modulus 3 and modulus 4; The cutting blade motor of main carriage is designed to 75KW and 100KW confession user selection; Form high-rate cutting, improved process velocity and machine tool accuracy greatly, produced huge economic benefit.
2. can carry out the high speed and dry cutting; The large-scale efficient numerically controlled gear-hobbing machine of the present invention's design; Can carry out DRY CUTTING but also be high-rate cutting, the cutting blade motor on the operator support body is 75KW and 100KW, and rotating speed reaches 1500 rev/mins and 1000 rev/mins respectively; The iron filings that cutting falls fall into conveyer belt through the V-type funnel on the lathe bed and are pulled away, and chip removal is smooth and easy.
3 meters of the large-scale efficient numerically controlled gear-hobbing machines of the present invention's design---18 meters, present one 13 meters large-scale efficient numerically controlled gear-hobbing machine is production and processing assembling completion, debugs, and in the near future, it will bring the highest economic benefit to the user.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper used morely base 1, workbench 2, lathe bed 3, column 4, column guide pass 5, Working table driving device 6, hydrostatic spindle 601, worm gear 602, worm screw 603, workbench servomotor 604, column drive unit 7, bed ways face ball screw axle 701, bed ways face ball screw 702, bed ways surface servo motor 703, slide drive unit 8, up-down ball screw axle 801, up-down ball screw 802, up-down servomotor 803, topping machanism 9, tool-post structure 901, slide 902, cutting spindle 903, cutting reductor 904, chip removal delivery apparatus 10, chip removal mouth 1001, conveyer belt 1002, additional work platform 11, auxiliary shoring system 12, terms such as rail 13, support bar 14, support roller 15, control system 16, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.
Claims (10)
1. one kind large-scale efficient numerically controlled gear-hobbing machine; It is characterized in that, comprise base (1), be arranged on the workbench (2) on the base (1) and be located at base (1) and workbench (2) between and can drive the Working table driving device (6) that workbench (2) rotates; Said workbench (2) is other also to be provided with lathe bed (3), be arranged on the column (4) on the lathe bed (3) and be arranged on lathe bed (3) and column (4) between and can drive the column drive unit (7) that column (4) is done front-rear reciprocation movement; Said column (4) is provided with column guide pass (5), is arranged on the slide drive unit (8) on the column guide pass (5) and can makees the topping machanism (9) that pumps at the effect lower edge of slide drive unit (8) column guide pass (5).
2. large-scale efficient numerically controlled gear-hobbing machine according to claim 1; It is characterized in that the workbench servomotor (604) that described Working table driving device (6) comprises the hydrostatic spindle (601) that is arranged on the base (1), be set on that hydrostatic spindle (601) is gone up and move with fixing worm gear (602), the worm screw (603) that cooperates with worm gear (602) and the driving worm screw (603) of said workbench (2).
3. large-scale efficient numerically controlled gear-hobbing machine according to claim 1; It is characterized in that described column drive unit (7) comprises bed ways face ball screw axle (701), matching with said bed ways face ball screw axle (701) merges the bed ways face ball screw (702) that is connected with said column guide pass (5) and drive the bed ways surface servo motor (703) that said bed ways face ball screw axle (701) moves.
4. large-scale efficient numerically controlled gear-hobbing machine according to claim 1; It is characterized in that described slide drive unit (8) comprises a up-down ball screw axle (801), matching with up-down ball screw axle (801) merges the up-down ball screw of fixing with said topping machanism (9) (802) and drive the up-down servomotor (803) that said up-down ball screw axle (801) moves.
5. large-scale efficient numerically controlled gear-hobbing machine according to claim 4; It is characterized in that; The slide (902) that described topping machanism (9) comprises tool-post structure (901) and is arranged on tool-post structure (901) rear end, said slide (902) connect with above-mentioned up-down ball screw (802) and can under the driving of cutting drive unit (8), do and pump; Said tool-post structure (901) one ends are provided with cutting spindle (903), the slide bull gear that the other end is provided with gear and matches with this gear.
6. large-scale efficient numerically controlled gear-hobbing machine according to claim 5; It is characterized in that; Described topping machanism (9) also is provided with cutting reductor (904), and said slide bull gear is fixed on said slide (902) upward also can drive said tool-post structure (901) along circumferentially doing positive and negative 45 ° of rotations under the driving of cutting reductor (904).
7. large-scale efficient numerically controlled gear-hobbing machine according to claim 1 is characterized in that, is provided with two guide pass on described lathe bed (3) and the column (4).
8. large-scale efficient numerically controlled gear-hobbing machine according to claim 1; It is characterized in that; This large-scale efficient numerically controlled gear-hobbing machine also comprises a chip removal delivery apparatus (10), and described chip removal delivery apparatus (10) comprises and somely is arranged on the chip removal mouth (1001) of lathe bed (3) bottom and is arranged on the conveyer belt (1002) that chip removal mouth (1001) below is used to transport the chip removal thing.
9. large-scale efficient numerically controlled gear-hobbing machine according to claim 1 is characterized in that, this large-scale efficient numerically controlled gear-hobbing machine comprises that also one is used to control the interior servomotor of above-mentioned drive unit and the control system (16) of reductor.
10. large-scale efficient numerically controlled gear-hobbing machine according to claim 1; It is characterized in that; This large-scale efficient numerically controlled gear-hobbing machine comprises that also one is arranged on said workbench (2) top and connects the additional work platform (11) that is used for the machining large workpiece with said workbench (2); The auxiliary shoring system (12) that is used to support additional work platform (11) with some is also established in said additional work platform (11) lower surface; Said auxiliary shoring system (12) comprises that a ground rail (13) and an end are arranged on the some support bars (14) on the ground rail (13); Said support bar (14) upper end is provided with support roller (15), and said support roller (15) contacts with said additional work platform (11) lower surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103366533A CN102357677A (en) | 2011-10-31 | 2011-10-31 | Large-scale high-efficiency numerically-controlled hobbing machine |
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| CN2011103366533A CN102357677A (en) | 2011-10-31 | 2011-10-31 | Large-scale high-efficiency numerically-controlled hobbing machine |
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| CN102357677A true CN102357677A (en) | 2012-02-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104759898A (en) * | 2015-03-18 | 2015-07-08 | 常州天山重工机械有限公司 | Auxiliary support devices for large rotation work table |
| CN108687410A (en) * | 2018-05-23 | 2018-10-23 | 上海星合机电有限公司 | Comb groove machine tool and its comb slot knife displacement control method |
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| CN101011762A (en) * | 2007-01-24 | 2007-08-08 | 南京工业大学 | Polar coordinates numerical control highly effective milling and gear hobbing composition machine tool |
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| CN104759898A (en) * | 2015-03-18 | 2015-07-08 | 常州天山重工机械有限公司 | Auxiliary support devices for large rotation work table |
| CN108687410A (en) * | 2018-05-23 | 2018-10-23 | 上海星合机电有限公司 | Comb groove machine tool and its comb slot knife displacement control method |
| CN108687410B (en) * | 2018-05-23 | 2020-10-09 | 上海星合机电有限公司 | Slot combing machine tool and slot combing knife displacement control method thereof |
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Application publication date: 20120222 |