CN203918127U - Chain digital control gear hobbing machine hobboing cutter spindle drive - Google Patents
Chain digital control gear hobbing machine hobboing cutter spindle drive Download PDFInfo
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- CN203918127U CN203918127U CN201420199628.4U CN201420199628U CN203918127U CN 203918127 U CN203918127 U CN 203918127U CN 201420199628 U CN201420199628 U CN 201420199628U CN 203918127 U CN203918127 U CN 203918127U
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Abstract
The utility model belongs to gear-hobbing machine technical field, relates in particular to a kind of chain digital control gear hobbing machine hobboing cutter spindle drive.It has solved the technical problems such as prior art poor stability.This chain digital control gear hobbing machine hobboing cutter spindle drive is arranged on tool holder casing and with hobboing cutter main shaft and is connected, this transmission mechanism comprises the first transmission helical gear being fixed on hobboing cutter main shaft and is fixed on the second transmission helical gear on power transmission shaft, the first described transmission helical gear is with second transmission helical gear is intermeshing is connected, the first described transmission helical gear is provided with and is set in the clearance elimination gear that hobboing cutter main shaft is peripheral and be meshed with the second transmission helical gear, described power transmission shaft is connected with driving the drive unit of its rotation, between described power transmission shaft and drive unit, by polywedge bet drive mechanism, be connected.The utility model advantage is: it is more reasonable to design, good stability and compact conformation.
Description
Technical field
The utility model belongs to gear-hobbing machine technical field, relates in particular to a kind of chain digital control gear hobbing machine hobboing cutter spindle drive.
Background technology
Gear-hobbing machine is most widely used a kind of lathe in gear cutting machine, machinable straight-tooth, helical gears on gear-hobbing machine, also can machining worm wheel, sprocket wheel etc., it presses the gear cutting machine of generating processing straight-tooth, helical teeth and double helical tooth roller gear and worm gear with hobboing cutter, also can process the workpiece of the various special tooth profiles such as spline and sprocket wheel when this lathe uses special hobboing cutter.Existing gear-hobbing machine has been widely used in the various machinery manufacturing industry such as automobile, tractor, lathe, engineering machinery, mining machinery, metallurgical machinery, oil, instrument, aircraft spacecraft, gear-hobbing machine generally uses spiral hobbing cutter by generating machining gears at present, and hobboing cutter machining gears is all generally interrupted cut, it at least there is following defect in existing gear-hobbing machine spindle drive: transmission chain length, common configuration is complicated, cost is high, rotating speed is low, inconvenience is installed, and transmission steadily and is not well positioned to meet the demand of automation; The problem existing in order to solve prior art, people have carried out long-term exploration, have proposed solution miscellaneous.
For example, Chinese patent literature discloses a kind of combination tool block of gear-hobbing machine, [application number: 200720114027.9], by main shaft rotating mechanism, knife rest rotating mechanism, main shaft jumping mechanism and corresponding accuracy-control system, lubricating system, formed, main shaft is arranged on the lower right of tool holder casing, its right-hand member meshes by spline and master gear, master gear connects main motor by transmission system, left end is connected with one end of slide plate by main shaft bearing, the other end of slide plate is provided with movable bracket, in movable bracket, be provided with axle sleeve, the axial line of axle sleeve and the axial line of main shaft are on same straight line.
Above-mentioned scheme has been improved the subproblem of prior art to a certain extent, still, this scheme also at least there is following defect: 1, design unreasonablely, complex structure and cost are high; 2, transmission chain length and rotating speed are low, and transmission steadily and is not well positioned to meet the demand of automation; 3, installation inconvenience and volume are large.
Utility model content
The purpose of this utility model is for the problems referred to above, a kind of compact conformation is provided and can improves hobboing cutter main shaft the chain digital control gear hobbing machine hobboing cutter spindle drive of the stationarity while running up.
For achieving the above object, the utility model has adopted following technical proposal: this chain digital control gear hobbing machine hobboing cutter spindle drive is arranged on tool holder casing and with hobboing cutter main shaft and is connected, this transmission mechanism comprises the first transmission helical gear being fixed on hobboing cutter main shaft and is fixed on the second transmission helical gear on power transmission shaft, the first described transmission helical gear is with second transmission helical gear is intermeshing is connected, the first described transmission helical gear is provided with and is set in the clearance elimination gear that hobboing cutter main shaft is peripheral and be meshed with the second transmission helical gear, described power transmission shaft is connected with driving the drive unit of its rotation, between described power transmission shaft and drive unit, by polywedge bet drive mechanism, be connected.The first transmission helical gear external diameter of the application is greater than the helical gear external diameter of the second transmission, guarantees gearratio.
In this application, the gear train by the first transmission helical gear and the second transmission helical gear and clearance elimination gear formation transfers to hobboing cutter main shaft by process requirements rotating speed.The built-up gear of the second transmission helical gear and clearance elimination gear is effectively eliminated the dither of hobboing cutter main shaft in process, surface roughness and the precision of processing parts have been improved, avoided the forge a knife generation of accident of gear-hobbing machine, the polywedge bet transmission of using with wheels combines belt and V with the advantage of transmission, compact conformation, efficient, the applicable high speed rotating of stable drive, shortened hobboing cutter main shaft and adjusted the time.
In above-mentioned chain digital control gear hobbing machine hobboing cutter spindle drive, described polywedge bet drive mechanism comprises being arranged on and is fixed on power transmission shaft and is located at the first multi-wedge belt pulley in roller box, in with roller box, be also provided with the second multi-wedge belt pulley being connected with drive unit, between the first described multi-wedge belt pulley and the second multi-wedge belt pulley, by polywedge bet, be connected, power transmission shaft one end is located on tool holder casing and with tool holder casing and is rotatedly connected, and the other end is located in band roller box and with band roller box and is rotatedly connected.
In above-mentioned chain digital control gear hobbing machine hobboing cutter spindle drive, described drive unit comprises servomotor, described servomotor is fixed on the outside with roller box by adjustable plate, the first described multi-wedge belt pulley is fixed on the output shaft of servomotor and is rotatedly connected between this first multi-wedge belt pulley and adjustable plate by the first expanding structure, the second described multi-wedge belt pulley is fixed on power transmission shaft by the second expanding structure, described adjustable plate and with being provided with between roller box for regulating the belt wheel tightness adjustment structure of polywedge bet tightness.The first expanding structure comprises the first expansion sleeve, and the second expanding structure comprises the second expansion sleeve.
In above-mentioned chain digital control gear hobbing machine hobboing cutter spindle drive, the first described transmission helical gear is fixed on hobboing cutter main shaft by spline housing, two ends, inside at spline housing are respectively equipped with the positioning sleeve being set on hobboing cutter main shaft, are provided with for preventing that this first transmission helical gear is along axially movable the first axial positioning structure of spline housing between tool holder casing and spline housing.Not only rotational stability is good, and structural strength is high;
In above-mentioned chain digital control gear hobbing machine hobboing cutter spindle drive, between described tool holder casing and power transmission shaft, be provided with for preventing that the second described transmission helical gear is along axially movable the second axial positioning structure of power transmission shaft, with roller box, away from a side of tool holder casing, be provided with the tubular locating ring that is set in power transmission shaft periphery, between tubular locating ring and power transmission shaft, be provided with at least one deep groove ball bearing, at the two ends of tubular locating ring, be provided with for preventing that this deep groove ball bearing is along axially movable the 3rd axial positioning structure of power transmission shaft.Not only rotational stability is good, and structural strength is high;
In above-mentioned chain digital control gear hobbing machine hobboing cutter spindle drive; described power transmission shaft is provided with the encoder that is positioned at tubular locating ring outside; described encoder is connected with control circuit respectively with drive unit, is provided with the over cap that covers on encoder outside on tubular locating ring.The use of encoder, dwindles preset rotation speed and actual speed error; Servomotor starts by obtaining system command output speed to the second multi-wedge belt pulley that output approaches preset rotation speed, by polywedge bet, drive to power transmission shaft, make encoder obtain the actual speed that servomotor is sent on power transmission shaft simultaneously and feed back to system, system is made a response immediately actual speed and preset rotation speed are adjusted within the scope of allowable error.
In above-mentioned chain digital control gear hobbing machine hobboing cutter spindle drive, the first described axial positioning structure comprises the first drive end bearing bracket and the first rear end cap that is arranged on spline housing two ends and is connected with tool holder casing respectively, on spline housing, be also provided with at the first described drive end bearing bracket and the first fore bearing between the first rear end cap and the first rear bearing, first fore bearing one end is resisted against on the first drive end bearing bracket by the first front spacer, the other end is resisted against on the first transmission helical gear, one end of the first rear bearing is resisted against on the first rear end cap by the first rear spacer, the other end is resisted against on the annular blocking surface of spline housing.The first fore bearing and the first rear bearing are taper roll bearing.
In above-mentioned chain digital control gear hobbing machine hobboing cutter spindle drive, the second described axial positioning structure comprises the second drive end bearing bracket and the second rear end cap that is arranged on the second transmission helical gear two ends and is connected with tool holder casing respectively, between the second drive end bearing bracket and power transmission shaft, be provided with the second fore bearing, between the second rear end cap and power transmission shaft, be provided with the second rear bearing, one end of the second fore bearing is resisted against on the second drive end bearing bracket, the other end is resisted against on the second transmission helical gear by the second front spacer, one end of the second rear bearing is resisted against on the second transmission helical gear, the other end is resisted against on the second rear end cap.The second fore bearing and the second rear bearing are taper roll bearing.
In above-mentioned chain digital control gear hobbing machine hobboing cutter spindle drive, the 3rd described axial positioning structure comprises the annular stop part that is arranged on tubular locating ring inwall the inner, one end of deep groove ball bearing is resisted against on annular stop part, outer end at tubular locating ring is provided with annular end cap, and the other end of deep groove ball bearing is resisted against on annular end cap by annular spacer.
In above-mentioned chain digital control gear hobbing machine hobboing cutter spindle drive, described belt wheel tightness adjustment structure comprises the extension being arranged on adjustable plate, on extension, be equipped with tightness adjustment screw, the described tightness adjustment screw end of thread is resisted against band roller box sidepiece, and between described tightness adjustment screw and extension, screw thread is connected.
In above-mentioned chain digital control gear hobbing machine hobboing cutter spindle drive, between the first drive end bearing bracket and spline housing, be respectively equipped with the first rotary seal circle between the first rear end cap and spline housing, between the second drive end bearing bracket and power transmission shaft, be respectively equipped with the second rotary seal circle between the second rear end cap and power transmission shaft, at the two ends of tubular locating ring, be respectively equipped with the 3rd rotary seal circle, when operation, first thereby lubricator is added and makes each bearing sufficient lubrication, can greatly improve the rotating speed of hobboing cutter main shaft, promote working (machining) efficiency.
In above-mentioned chain digital control gear hobbing machine hobboing cutter spindle drive, on power transmission shaft, be provided with at least one round nut being connected with power transmission shaft screw thread, one end of this round nut is resisted against on the second rear bearing, between the second rear end cap and tool holder casing, be provided with the pre-pad circle of elasticity, the effect of the pre-pad circle of the round nut here and elasticity is to realize bearing pre-tightened, guarantees packaging efficiency.
Compared with prior art, the advantage of this chain digital control gear hobbing machine hobboing cutter spindle drive is: 1, design is more reasonable, by the first transmission helical gear and the second transmission helical gear and the gear train of clearance elimination gear formation, process requirements rotating speed is transferred to hobboing cutter main shaft.The built-up gear of the second transmission helical gear and clearance elimination gear is effectively eliminated the dither of hobboing cutter main shaft in process, surface roughness and the precision of processing parts have been improved, avoided the forge a knife generation of accident of gear-hobbing machine, the polywedge bet transmission of using with wheels combines belt and V with the advantage of transmission, compact conformation, efficient, the applicable high speed rotating of stable drive, shortened hobboing cutter main shaft and adjusted the time; 2, servomotor starts by obtaining system command output speed to the second multi-wedge belt pulley that output approaches preset rotation speed, by polywedge bet, drive to power transmission shaft, make encoder obtain the actual speed that servomotor is sent on power transmission shaft simultaneously and feed back to system, system is made a response immediately actual speed and preset rotation speed are adjusted within the scope of allowable error, practical; 3, the high and long service life of structural strength; 4, stationarity is good; 5, the use of encoder, dwindles preset rotation speed and actual speed error; 6, be easy to assembling and manufacture.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model provides.
In figure, tool holder casing 1a, hobboing cutter main shaft 1b, the first drive end bearing bracket 11, the first rear end cap 12, the first fore bearing 13, the first rear bearing 14, the first front spacer 15, the first rear spacer 16, the first rotary seal circle 17, the first transmission helical gear 2, the second drive end bearing bracket 2a, the second rear end cap 2b, the second fore bearing 2c, the second rear bearing 2d, the second front spacer 2e, spline housing 21, annular blocking surface 21a, positioning sleeve 22, the second rotary seal circle 23, power transmission shaft 3, round nut 31, the pre-pad circle 32 of elasticity, the second transmission helical gear 4, clearance elimination gear 5, drive unit 6, servomotor 61, adjustable plate 62, extension 62a, tightness adjustment screw 62b, polywedge bet drive mechanism 7, band roller box 7a, tubular locating ring 7b, deep groove ball bearing 7c the 3rd rotary seal circle 7d, the first multi-wedge belt pulley 71, annular stop part 71b, annular spacer 71c, the first expansion sleeve 71d, the second multi-wedge belt pulley 72, the second expansion sleeve 72a, polywedge bet 73, encoder 8, over cap 8a.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Figure 1, this chain digital control gear hobbing machine hobboing cutter spindle drive is arranged on tool holder casing 1a above and is connected with hobboing cutter main shaft 1b, this transmission mechanism comprises and is fixed on the first transmission helical gear 2 on hobboing cutter main shaft 1b and is fixed on the second transmission helical gear 4 on power transmission shaft 3, the first described transmission helical gear 2 is with second transmission helical gear 4 is intermeshing is connected, the first described transmission helical gear 2 is provided with and is set in the clearance elimination gear 5 that hobboing cutter main shaft 1b is peripheral and be meshed with the second transmission helical gear 4, described power transmission shaft 3 is connected with driving the drive unit 6 of its rotation, between described power transmission shaft 3 and drive unit 6, by polywedge bet drive mechanism 7, be connected.
Concrete, the polywedge bet drive mechanism 7 of the present embodiment comprises being arranged on and is fixed on power transmission shaft 3 and is located at the first multi-wedge belt pulley 71 in roller box 7a, in with roller box 7a, be also provided with the second multi-wedge belt pulley 72 being connected with drive unit 6, between the first described multi-wedge belt pulley 71 and the second multi-wedge belt pulley 72, by polywedge bet 73, be connected, power transmission shaft 3 one end are located in tool holder casing 1a above and are rotatedly connected with tool holder casing 1a, and the other end is located in band roller box 7a and with band roller box 7a and is rotatedly connected.
Secondly, drive unit 6 comprises servomotor 61, described servomotor 61 is fixed on the outside with roller box 7a by adjustable plate 62, the first described multi-wedge belt pulley 71 is fixed on the output shaft of servomotor 61 and is rotatedly connected between this first multi-wedge belt pulley 71 and adjustable plate 62 by the first expanding structure, this first expanding structure comprises the first expansion sleeve 71d, the second described multi-wedge belt pulley 72 is fixed on power transmission shaft 3 by the second expanding structure, the second expanding structure comprises the second expansion sleeve 72a, described adjustable plate 62 and with being provided with between roller box 7a for regulating the belt wheel tightness adjustment structure of polywedge bet 73 tightnesses, this belt wheel tightness adjustment structure comprises the extension 62a being arranged on adjustable plate 62, on extension 62a, be equipped with tightness adjustment screw 62b, the described tightness adjustment screw 62b end of thread is resisted against band roller box 7a sidepiece, between described tightness adjustment screw 62b and extension 62a, screw thread is connected.
In order further to improve structural strength, prioritization scheme, the first transmission helical gear 2 of the present embodiment is fixed on hobboing cutter main shaft 1b by spline housing 21, at the two ends, inside of spline housing 21, be respectively equipped with the positioning sleeve 22 being set on hobboing cutter main shaft 1b, between tool holder casing 1a and spline housing 21, be provided with for preventing that this first transmission helical gear 2 is along axially movable the first axial positioning structure of spline housing 21, further, this first axial positioning structure comprises the first drive end bearing bracket 11 and the first rear end cap 12 that is arranged on spline housing 21 two ends and is connected with tool holder casing 1a respectively, on spline housing 21, be also provided with at the first described drive end bearing bracket 11 and the first fore bearing 13 between the first rear end cap 12 and the first rear bearing 14, first fore bearing 13 one end are resisted against on the first drive end bearing bracket 11 by the first front spacer 15, the other end is resisted against on the first transmission helical gear 2, one end of the first rear bearing 14 is resisted against on the first rear end cap 12 by the first rear spacer 16, the other end is resisted against on the annular blocking surface 21a of spline housing 21.
Secondly, between tool holder casing 1a and power transmission shaft 3, be provided with for preventing that the second described transmission helical gear 4 is along axially movable the second axial positioning structure of power transmission shaft 3, prioritization scheme, this second axial positioning structure comprises the second drive end bearing bracket 2a and the second rear end cap 2b that is arranged on the second transmission helical gear 4 two ends and is connected with tool holder casing 1a respectively, between the second drive end bearing bracket 2a and power transmission shaft 3, be provided with the second fore bearing 2c, between the second rear end cap 2b and power transmission shaft 3, be provided with the second rear bearing 2d, one end of the second fore bearing 2c is resisted against on the second drive end bearing bracket 2a, the other end is resisted against on the second transmission helical gear 4 by the second front spacer 2e, one end of the second rear bearing 2d is resisted against on the second transmission helical gear 4, the other end is resisted against on the second rear end cap 2b.
With roller box 7a, away from a side of tool holder casing 1a, be provided with the tubular locating ring 7b that is set in power transmission shaft 3 peripheries, between tubular locating ring 7b and power transmission shaft 3, be provided with at least one deep groove ball bearing 7c, at the two ends of tubular locating ring 7b, be provided with for preventing that this deep groove ball bearing 7c is along axially movable the 3rd axial positioning structure of power transmission shaft 3, prioritization scheme, the 3rd axial positioning structure comprises the annular stop part 71b that is arranged on tubular locating ring 7b inwall the inner, one end of deep groove ball bearing 7c is resisted against on annular stop part 71b, outer end at tubular locating ring 7b is provided with annular end cap 72b, the other end of deep groove ball bearing 7c is resisted against on annular end cap 72b by annular spacer 71c.
For the stability that increases the service life and rotate, between the first drive end bearing bracket 11 and spline housing 21, be respectively equipped with the first rotary seal circle 17 between the first rear end cap 12 and spline housing 21, between the second drive end bearing bracket 2a and power transmission shaft 3, be respectively equipped with the second rotary seal circle 23 between the second rear end cap 2b and power transmission shaft 3, at the two ends of tubular locating ring 7b, be respectively equipped with the 3rd rotary seal circle 7d, when operation, first thereby lubricator is added and makes each bearing sufficient lubrication, can greatly improve the rotating speed of hobboing cutter main shaft, promote working (machining) efficiency.
Secondly, for the ease of installing, be located at the second fore bearing 2c and the second rear bearing 2d on power transmission shaft 3, on power transmission shaft 3, be provided with at least one round nut 31 being connected with power transmission shaft 3 screw threads, one end of this round nut 31 is resisted against on the second rear bearing 2d, between the second rear end cap 2b and tool holder casing 1a, be provided with the pre-pad circle 32 of elasticity, the effect of the round nut 31 here and the pre-pad circle 32 of elasticity is to realize bearing pre-tightened, guarantees packaging efficiency.
The operation principle of the present embodiment is as follows: servomotor 61 action drives the second multi-wedge belt pulleys 72 rotate, the second multi-wedge belt pulley 72 drives the first multi-wedge belt pulley 71 of being located on power transmission shaft 3 to rotate by polywedge bet 73, thereby the second transmission helical gear 4 of being simultaneously located on power transmission shaft 3 rotates the first transmission helical gear 2 rotations that make to be located on hobboing cutter main shaft 1b, thereby i.e. hobboing cutter main shaft 1b rotation drives, is located at the hobboing cutter operation on hobboing cutter main shaft 1b;
Further, the servomotor 61 of the present embodiment starts by obtaining system command output speed to the second multi-wedge belt pulley 72 that output approaches preset rotation speed, by polywedge bet 73, drive to power transmission shaft 3, make encoder 8 obtain the actual speed that servomotor 61 is sent on power transmission shaft 3 simultaneously and feed back to system, system is made a response immediately actual speed and preset rotation speed are adjusted within the scope of allowable error.By the first transmission helical gear 2 and the second transmission helical gear 4, with the gear train that clearance elimination gear 5 forms, process requirements rotating speed is transferred to hobboing cutter main shaft 1b.The second transmission helical gear 4 is effectively eliminated the dither of hobboing cutter main shaft 1b in process with the built-up gear of clearance elimination gear 5, has improved surface roughness and the precision of processing parts, has avoided the forge a knife generation of accident of gear-hobbing machine.The first fore bearing 13 and the first rear bearing 14 that gear train is used are taper roll bearing, and it has guaranteed the stationarity that hobboing cutter main shaft 1b runs up.The polywedge bet transmission of using with wheels combines belt and V with the advantage of transmission, and compact conformation, stable drive be efficient, be applicable to high speed rotating, shortened hobboing cutter main shaft 1b and adjusted the time.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used tool holder casing 1a herein, hobboing cutter main shaft 1b, the first drive end bearing bracket 11, the first rear end cap 12, the first fore bearing 13, the first rear bearing 14, the first front spacer 15, the first rear spacer 16, the first rotary seal circle 17, the first transmission helical gear 2, the second drive end bearing bracket 2a, the second rear end cap 2b, the second fore bearing 2c, the second rear bearing 2d, the second front spacer 2e, spline housing 21, annular blocking surface 21a, positioning sleeve 22, the second rotary seal circle 23, power transmission shaft 3, round nut 31, the pre-pad circle 32 of elasticity, the second transmission helical gear 4, clearance elimination gear 5, drive unit 6, servomotor 61, adjustable plate 62, extension 62a, tightness adjustment screw 62b, polywedge bet drive mechanism 7, band roller box 7a, tubular locating ring 7b, deep groove ball bearing 7c the 3rd rotary seal circle 7d, the first multi-wedge belt pulley 71, annular stop part 71b, annular spacer 71c, the first expansion sleeve 71d, the second multi-wedge belt pulley 72, the second expansion sleeve 72a, polywedge bet 73, encoder 8, the terms such as over cap 8a, but do not get rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (10)
1. a chain digital control gear hobbing machine hobboing cutter spindle drive, be arranged on tool holder casing (1a) and be connected with hobboing cutter main shaft (1b), it is characterized in that, this transmission mechanism comprises and is fixed on the first transmission helical gear (2) on hobboing cutter main shaft (1b) and is fixed on the second transmission helical gear (4) on power transmission shaft (3), the first described transmission helical gear (2) and the second intermeshing being connected of transmission helical gear (4), the first described transmission helical gear (2) is provided with and is set in the clearance elimination gear (5) that hobboing cutter main shaft (1b) is peripheral and be meshed with the second transmission helical gear (4), described power transmission shaft (3) is connected with driving the drive unit (6) of its rotation, between described power transmission shaft (3) and drive unit (6), by polywedge bet drive mechanism (7), be connected.
2. chain digital control gear hobbing machine hobboing cutter spindle drive according to claim 1, it is characterized in that, described polywedge bet drive mechanism (7) comprises and is arranged on that to be fixed on power transmission shaft (3) upper and be located at the first multi-wedge belt pulley (71) in band roller box (7a), in band roller box (7a), be also provided with the second multi-wedge belt pulley (72) being connected with drive unit (6), between described the first multi-wedge belt pulley (71) and the second multi-wedge belt pulley (72), by polywedge bet (73), be connected, power transmission shaft (3) one end is located in tool holder casing (1a) above and is rotatedly connected with tool holder casing (1a), the other end is located in band roller box (7a) and with band roller box (7a) and is rotatedly connected.
3. chain digital control gear hobbing machine hobboing cutter spindle drive according to claim 2, it is characterized in that, described drive unit (6) comprises servomotor (61), described servomotor (61) is fixed on the outside of band roller box (7a) by adjustable plate (62), described the first multi-wedge belt pulley (71) is fixed on the output shaft of servomotor (61) and is rotatedly connected between this first multi-wedge belt pulley (71) and adjustable plate (62) by the first expanding structure, described the second multi-wedge belt pulley (72) is fixed on power transmission shaft (3) by the second expanding structure, between described adjustable plate (62) and band roller box (7a), be provided with for regulating the belt wheel tightness adjustment structure of polywedge bet (73) tightness.
4. according to the chain digital control gear hobbing machine hobboing cutter spindle drive described in claim 1 or 2 or 3, it is characterized in that, the first described transmission helical gear (2) is fixed on hobboing cutter main shaft (1b) by spline housing (21), at the two ends, inside of spline housing (21), be respectively equipped with the positioning sleeve (22) being set on hobboing cutter main shaft (1b), between tool holder casing (1a) and spline housing (21), be provided with for preventing that this first transmission helical gear (2) is along axially movable the first axial positioning structure of spline housing (21).
5. according to the chain digital control gear hobbing machine hobboing cutter spindle drive described in claim 2 or 3, it is characterized in that, between described tool holder casing (1a) and power transmission shaft (3), be provided with for preventing that the second described transmission helical gear (4) is along axially movable the second axial positioning structure of power transmission shaft (3), in a side of being with roller box (7a) away from tool holder casing (1a), be provided with and be set in the peripheral tubular locating ring (7b) of power transmission shaft (3), between tubular locating ring (7b) and power transmission shaft (3), be provided with at least one deep groove ball bearing (7c), at the two ends of tubular locating ring (7b), be provided with for preventing that this deep groove ball bearing (7c) is along axially movable the 3rd axial positioning structure of power transmission shaft (3).
6. chain digital control gear hobbing machine hobboing cutter spindle drive according to claim 5; it is characterized in that; described power transmission shaft (3) is provided with the encoder (8) that is positioned at tubular locating ring (7b) outside; described encoder (8) is connected with control circuit respectively with drive unit (6), is provided with the over cap (8a) that covers on encoder (8) outside on tubular locating ring (7b).
7. chain digital control gear hobbing machine hobboing cutter spindle drive according to claim 4, it is characterized in that, the first described axial positioning structure comprises the first drive end bearing bracket (11) and the first rear end cap (12) that is arranged on spline housing (21) two ends and is connected with tool holder casing (1a) respectively, on spline housing (21), be also provided with and be positioned at described the first drive end bearing bracket (11) and the first fore bearing (13) between the first rear end cap (12) and the first rear bearing (14), the first fore bearing (13) one end is resisted against on the first drive end bearing bracket (11) by the first front spacer (15), the other end is resisted against on the first transmission helical gear (2), one end of the first rear bearing (14) is resisted against on the first rear end cap (12) by the first rear spacer (16), the other end is resisted against on the annular blocking surface (21a) of spline housing (21).
8. chain digital control gear hobbing machine hobboing cutter spindle drive according to claim 5, it is characterized in that, the second described axial positioning structure comprises the second drive end bearing bracket (2a) and the second rear end cap (2b) that is arranged on the second transmission helical gear (4) two ends and is connected with tool holder casing (1a) respectively, between the second drive end bearing bracket (2a) and power transmission shaft (3), be provided with the second fore bearing (2c), between the second rear end cap (2b) and power transmission shaft (3), be provided with the second rear bearing (2d), one end of the second fore bearing (2c) is resisted against on the second drive end bearing bracket (2a), the other end is resisted against on the second transmission helical gear (4) by the second front spacer (2e), one end of the second rear bearing (2d) is resisted against on the second transmission helical gear (4), the other end is resisted against on the second rear end cap (2b).
9. chain digital control gear hobbing machine hobboing cutter spindle drive according to claim 8, it is characterized in that, the 3rd described axial positioning structure comprises the annular stop part (71b) that is arranged on tubular locating ring (7b) inwall the inner, one end of deep groove ball bearing (7c) is resisted against on annular stop part (71b), in the outer end of tubular locating ring (7b), be provided with annular end cap (72b), the other end of deep groove ball bearing (7c) is resisted against on annular end cap (72b) by annular spacer (71c).
10. chain digital control gear hobbing machine hobboing cutter spindle drive according to claim 3, it is characterized in that, described belt wheel tightness adjustment structure comprises the extension (62a) being arranged on adjustable plate (62), on extension (62a), be equipped with tightness adjustment screw (62b), described tightness adjustment screw (62b) end of thread is resisted against band roller box (7a) sidepiece, and between described tightness adjustment screw (62b) and extension (62a), screw thread is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199628.4U CN203918127U (en) | 2014-04-22 | 2014-04-22 | Chain digital control gear hobbing machine hobboing cutter spindle drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199628.4U CN203918127U (en) | 2014-04-22 | 2014-04-22 | Chain digital control gear hobbing machine hobboing cutter spindle drive |
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| CN203918127U true CN203918127U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420199628.4U Withdrawn - After Issue CN203918127U (en) | 2014-04-22 | 2014-04-22 | Chain digital control gear hobbing machine hobboing cutter spindle drive |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990857A (en) * | 2014-04-22 | 2014-08-20 | 浙江嘉力宝精机股份有限公司 | Hobbing cutter main shaft transmission mechanism of CNC gear hobbing machine |
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2014
- 2014-04-22 CN CN201420199628.4U patent/CN203918127U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990857A (en) * | 2014-04-22 | 2014-08-20 | 浙江嘉力宝精机股份有限公司 | Hobbing cutter main shaft transmission mechanism of CNC gear hobbing machine |
| CN103990857B (en) * | 2014-04-22 | 2017-03-22 | 浙江嘉力宝精机股份有限公司 | Hobbing cutter main shaft transmission mechanism of CNC gear hobbing machine |
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Granted publication date: 20141105 Effective date of abandoning: 20170322 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |