CN102672516B

CN102672516B - Workbench driving device

Info

Publication number: CN102672516B
Application number: CN201110060527.XA
Authority: CN
Inventors: 卢永祥; 林忠龙
Original assignee: Factory Automation Technology Co Ltd
Current assignee: Factory Automation Technology Co Ltd
Priority date: 2011-03-14
Filing date: 2011-03-14
Publication date: 2014-11-12
Anticipated expiration: 2031-03-14
Also published as: CN102672516A

Abstract

The invention relates to a workbench driving device, which is mainly characterized in that a major power source drives a rotation spindle; a left screw bolt and a right screw bolt are respectively formed on the rotation spindle and respectively correspond to a first transmission gear and a second transmission gear; a large power gear is arranged under the rotation spindle; the two transmission gears and the large power gear respectively correspond to a variable speed gear so as to drive a workbench to operate at high gear and low gear; a piston assembly is correspondingly arranged on the outer part of the rotation spindle; and the center of the rotation spindle is provided with a pipeline so as to correspondingly drive the piston assembly to operate normally and eliminate a back clearance, so that the two transmission gears can be moved axially and rotated radially, mesh transmission is carried out among the gears, the control on the back clearance between a large spiral gear and a small spiral gear is achieved, the back clearance exists when the workbench is used for rotatable lathe work, and the back clearance is eliminated during milling processing and precision position control.

Description

Working table driving device

Technical field

Present invention is directed to a kind of Working table driving device, refer in particular to and a kind ofly utilize rotary main shaft to move axially and the design of radial rotating, reaching the effect that between workbench gear, back clearance is eliminated is invention application person.

Background technology

Press, general helicoid workbench, in workbench king bolt gear, need have backlash backlash with the small helical gear being meshed) exist, to avoid turning round time heating to produce, interfere, but the angle precision of table positions when the existence of backlash can affect Milling Process, so solve above-mentioned topic, as shown in Figure 9, power drive when workbench turning is processed, and the angle orientation function of workbench during Milling Process, be indivedual separately controls, it is to drive gear 61 by an electrical machinery of active force 6, to allow gear 61 drive workbench 62 transmissions, in opposite side again correspondence be provided with a servomotor 7 and drive lathe of work level angles location, carry out back clearance elimination simultaneously, and above-mentioned design, because need are designed with 2 groups of power-actuated motors, causes cost high, also allow complicated integral structure simultaneously.

And high, the baroque topic of above-mentioned cost, the scheme that system can be achieved a solution by Japanese Patent Laid No. 3729519 (P 3729519), and its content disclosed be back clearance eliminating machine design, mainly utilize single power source to drive workbench, see through the switching of back clearance eliminating machine device, while making workbench do revolution turning processing, admitting of back clearance exists, when Milling Process, can eliminate back clearance, it is to be used in that an axle part is provided with two numbers of teeth, modulus is identical but spur gear that transverse tooth thickness is different, coordinate again switching device shifter, reach the function that back clearance is eliminated; In addition, because its back clearance amount of cancellation is for fixing, cannot auto-compensation adjustment, eliminate the back clearance producing because of pitch error between each travelling gear, during turning without the function of balance drive.

In view of this, the inventor adheres to the abundant of these relevant industries for many years and designs and develops and actual fabrication experience, and a kind of Working table driving device is provided especially, improves the disappearance of prior art, to having the object person of better practical value.

Summary of the invention

Main purpose of the present invention is for a kind of Working table driving device is provided, main on rotary main shaft or workbench, carry out that carrousel is cut, the conversion of high and low speed speed control system, its high speed, the slow-speed of revolution can be applicable to turning, when the slow-speed of revolution, two groups of travelling gears can transmit double moment of torsion output, can do back clearance eliminates and precise position control, and during high, low speed revolution turning, not doing back clearance eliminates, can avoid because frictional heating produces, interfering between each travelling gear, during low speed, can do back clearance elimination, and reach the demand of precise position control and processing.

For reaching above-mentioned purpose, the invention provides a kind of Working table driving device, its feature and effect are as follows:

It mainly drives single-revolution main shaft with a main power source, on rotary main shaft, be formed with respectively a left side, right hand screw, with corresponding assembling first respectively, the second travelling gear, and rotary main shaft below is provided with a large power gear, with two travelling gears and large power gear respectively the corresponding workbench that drives through gear be height, low or first gear running, continuous, in the outside of rotary main shaft, be that correspondence is provided with piston component, and by rotary main shaft center, be provided with the corresponding promotion piston component of pipeline and do the action running well and back clearance is eliminated, by this, two travelling gears can be moved axially and radial rotating, and engagement is transmitted through between each gear, reach the control of back clearance between the large small helical gear of workbench, work table rotation turning is added has back clearance to exist man-hour, back clearance eliminator when Milling Process and precise position control.

Accompanying drawing explanation

Fig. 1 is the action schematic diagram of high-speed drive of the present invention;

Fig. 2 is the local enlarged diagram of high-speed drive of the present invention;

Fig. 3 is the action schematic diagram of low speed rotation of the present invention;

Fig. 4 is the local enlarged diagram of low speed rotation of the present invention;

Fig. 5 is that high, low speed of the present invention is overlooked transmission schematic diagram;

Fig. 6 is that transmission schematic diagram is overlooked in back clearance elimination of the present invention;

Fig. 7 is that back clearance of the present invention is eliminated schematic diagram;

Fig. 8 is that the bolt eliminated of back clearance of the present invention is in conjunction with schematic top plan view;

Fig. 9 is prior art schematic diagram.

Main element symbol description:

< > of the present invention

1 main power source 11 driving-belts

2 rotary main shaft 21 left hand screws

The large power gear of 22 right hand screw 23

24 first travelling gear 241 arcuate sockets

25 second travelling gear 26 piston components

27 axle sleeve 271 perforation

28 annular groove ditch 281 perforations

282 pipeline 29 swivel couplings

3 gear 30 plectrums

31 turn fluted disc 32 small tooth plates

4 workbench are organized in 33 drivings

5 bolts

The existing > of <

6 electrical machinery of active force 61 gears

62 workbench 7 servomotors

The specific embodiment

For making technological means of the present invention, goal of the invention and reaching effect, have more complete and clearly disclose, hereby in lower detailed description it, and see also accompanying drawing and the component symbol of announcement.

First, refer to shown in Fig. 1～Fig. 8, for the invention provides a kind of Working table driving device overall architecture schematic diagram, it is to be mainly provided with main power source 1 correspondence to drive single-revolution main shaft 2 with a driving-belt 11, and use rotary main shaft 2 and via gear 3, drive workbench, wherein:

On this rotary main shaft 2, be respectively equipped with a left side, right hand screw 21, 22 and one large power gear 23, and it is left, right hand screw 21, corresponding assembling first respectively on 22, the second travelling gear 24, 25, and the first travelling gear 24 is provided with arcuate socket 241 and can correspondence wears bolt 5 and fix with the second travelling gear 25, continue in rotary main shaft 2 outside corresponding first, the second travelling gear 24, 25 below is provided with piston component 26, and between piston component 26 and rotary main shaft 2, be provided with an axle sleeve 27, axle sleeve 27 is provided with perforation 271, 271 corresponding rotary main shaft 2 places of boring a hole form an annular groove ditch 28, annular groove ditch 28 is provided with a perforation 281 that runs through rotary main shaft 2, by rotary main shaft 2 centers, be provided with pipeline 282 again and be communicated to perforation 281, in pipeline 282 sides, be provided with the corresponding input pressure of swivel coupling 29 [can be oil pressure or air pressure] to make piston component 26 starts again,

This gear 3 is consisted of A, B, C axle, with the plectrum 30 by A axle drive B, C axle is provided with the turn fluted disc 31 of first, second travelling gear 24,25 engagements of rotary main shaft 2 and with the small tooth plate 32 of large power gear 23, and select engagement via driving group 33 set on A axle;

By this, to utilize piston component 26 starts, allow first, second travelling gear 24,25 move axially and eliminate back clearance and change gear 3 engagements and reach high, low speed rotation person radially.

See also shown in Fig. 1～Fig. 8, when workbench of the present invention is used, it is to have respectively the state of top gear, low or first gear transmission and the function that low or first gear transmission coordinates back clearance to eliminate, below difference description:

First, see also shown in Fig. 1, Fig. 2, Fig. 5, when top gear transmission, its rotary main shaft 2 is and clockwise rotates, and its small tooth plate 32 by the B axle in gear 3 organizes via driving set on A axle that 33 power decline and with the relative engagement of large power gear 23 of rotary main shaft 2 belows, and now, first, second travelling gear 24,25 on rotary main shaft 2 and C, the corresponding gear of B axle part depart from completely, to allow workbench 4 be clockwise top gear, rotate.And now, pressure at the set swivel coupling 29 in rotary main shaft 2 centers is release conditions, therefore 26 of first, second travelling gear 24,25 and piston components are because of deadweight relation, and there is no X spacing, and first, second travelling gear 24,25 presents pressure-less state, coordinate the engagement of the small tooth plate 32 of large power gear 23 and gear 3B axle simultaneously, to drive greatly little, can allow workbench be high speed rotating person.

See also shown in Fig. 3～Fig. 5, when low or first gear transmission, its rotary main shaft 2 is along the rotation of (instead) hour hands, and its small tooth plate 32 by B axle in gear 3 is organized 33 power via driving set on A axle and is risen and depart from the engagement with the large power fluted disc 23 of rotary main shaft 2 belows, with first, second travelling gear 24,25 engagements that allow on turn fluted disc 31 and the rotary main shaft 2 of B, C axle, and the corresponding transmission B of rotary main shaft 2, C axle drive workbench 4 to be the person of slowly running, now, pressure at the set swivel coupling 29 in rotary main shaft 2 centers is release conditions, so first, the second travelling gear 24, 25 and 26 of piston components there is X spacing, and first, the second travelling gear 24, 25 present quick condition, coordinate compared with first of path simultaneously, the second travelling gear 24, 25 with gear 3B, the engagement of the turn fluted disc 31 that C axle is larger, with little drive, can allow workbench be greatly slowly runs, make it under low or first gear transmission, by C, B axle part and there is balance drive function and can transmit the output of double moment of torsion, reduce transmission mechanism size, reduce Acceleration and deceleration time.

See also Fig. 3, shown in Fig. 6～Fig. 8, when low or first gear transmission coordinates the function of back clearance elimination, first allow rotary main shaft 2 under motionless state, allow the set swivel coupling 29 in rotary main shaft 2 centers 282 import pressure by the road, its source pressure can be the input of oil pressure or air pressure, by pressure via pipeline 282 perforation 281 to rotary main shaft 2, by perforation 281, import annular groove ditch 28, by the perforation 271 on annular groove ditch 28 warp beam sleeves 27, input to piston component 26 places again, to make it promote the up mobile X of elimination spacing of piston component 26 starts, and now first, the second travelling gear 24, 25 present the state of holding out against, and under state, coordinate rotary main shaft 2 to be low or first gear to rotate holding out against, allow rotary main shaft 2 first, the second travelling gear 24, 25 by the left side on rotary main shaft 2, right hand screw 21, 22, make axial displacement and radial rotating, and originally with gear 3 in C, gear on B axle has the state elimination that every between cog maintains gap, formation is carried out auto-compensation adjustment with low speed rotation, eliminate the back clearance producing because of pitch error between each travelling gear, and back clearance eliminate carry out in during with low speed rotation, first, second travelling gear 24,25 of its rotary main shaft 2 has the phenomenon turning along (contrary), therefore, hold out against first, second travelling gear 24,25 of state when rotating, in arcuate socket 241 by the corresponding locking of bolt 5 on the first travelling gear 24, rotation that can be relative by 24,25 of first, second travelling gears with arc space and moving axially, this first, second travelling gear 24,25 can not depart from, moreover, when low or first gear turns top gear, system is by the earth pressure release of 24,25 of piston component 26 and first, second travelling gears, and at release of pressure at that time, its first, second travelling gear 24,25 can be quick condition, can move freely and be easy to switch speed, allow first, second travelling gear 24,25 under quick condition and the C in gear 3, the gear on B axle part reply and Nie closes and carries out low speed rotation high-speed drive, and the bolt 5 on this first, second travelling gear 24,25 also can bear the pulling force person of a twisting in arcuate socket 241 during transmission.

Comprehensively above-mentioned, this rotary main shaft can be applicable to have high and low shelves speed change handoff functionality, needs back clearance to eliminate to reach the working talbe for tool machine of precise position control object simultaneously; The machinery of application is warded off [as shown in Figure 9] such as milling machine table, vertical lathe workstation, milling car Compound Machining machine worktables as console mode.

Above is only part embodiment of the present invention for person, not in order to limit the present invention, causes according to intention spirit of the present invention and feature, and the modifications person of forming a little, within also should being included in this patent scope.

By the above, the composition of this element is known with use implementation, and the present invention and prior art are compared down, and cording has plurality of advantages, is described below:

1, Working table driving device of the present invention, its workbench drives, angle orientation is controlled and is same spindle motor, so can reduce member cost person.

2, Working table driving device of the present invention, can auto-compensation adjustment, eliminate the back clearance producing because of pitch error between each travelling gear.

3, Working table driving device of the present invention, the design that back clearance is eliminated is incorporated on rotary main shaft, is to reduce jackshaft configuration, reaches setting and the assembling of simplifying integrated model.

4, Working table driving device of the present invention, only has high and low gear switch, applicable to broader process velocity scope.

5, Working table driving device of the present invention, can do adjustment and the setting of precompression.

6, Working table driving device of the present invention, single gear can be applicable to the precise position control demand that the high torsion of high and low rotating speed turning is exported and low speed is warded off milling.

7, Working table driving device of the present invention, transmission mechanism size be exported, be reduced to balance drive function can by double moment of torsion, reduces Acceleration and deceleration time.

Claims

1. a Working table driving device, it is to be mainly provided with a main power source (1) correspondence to drive single-revolution main shaft (2) with a driving-belt (11), and use rotary main shaft (2) and via gear (3), drive workbench (4) person, it is characterized in that:

On this rotary main shaft (2), be respectively equipped with a left side, right hand screw (21, 22) and a large power gear (23), and it is left, right hand screw (21, 22) upper corresponding assembling first respectively, the second travelling gear (24, 25), and the first travelling gear (24) is provided with that arcuate socket (241) correspondence wears bolt (5) and fixing with the second travelling gear (25), continue in rotary main shaft (2) outside corresponding first, the second travelling gear (24, 25) below is provided with piston component (26), and be provided with an axle sleeve (27) between piston component (26) and rotary main shaft (2), axle sleeve (27) is provided with perforation (271), in the corresponding axle sleeve of rotary main shaft (2) (27) perforation (271), locate to form an annular groove ditch (28), annular groove ditch (28) is provided with a perforation (281) that runs through rotary main shaft (2), by rotary main shaft (2) center, be provided with pipeline (282) again and be communicated to perforation (281), in pipeline (282) top, being provided with swivel coupling (29) again comes corresponding input pressure to make piston component (26) start,

This gear (3) is consisted of A, B, C axle, with by the corresponding transmission B of rotary main shaft (2), C axle, make B, C axle drive workbench (4), and on B, C axle, be equipped with turn fluted disc (31), and the turn fluted disc on B, C axle respectively with rotary main shaft (2) on first, second travelling gear (24,25) and B axle is provided with and the small tooth plate (32) of large power gear (23) engagement of rotary main shaft (2), and select engagement via driving group (33) set on A axle;

By this, to utilize piston component (26) start, first, second travelling gear (24,25) can be moved axially on rotary main shaft (2) and radial rotating is eliminated back clearance and changed gear (3) engagement and reaches high, low speed rotation person radially.

2. Working table driving device as claimed in claim 1, is characterized in that, described swivel coupling (29) is for allowing piston component (26) start person with oil pressure mode intake line.

3. Working table driving device as claimed in claim 1, is characterized in that, described swivel coupling (29) is for allowing piston component (26) start person with air pressure mode intake line.