CN1037293A - Tool drive - Google Patents
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- CN1037293A CN1037293A CN89103101A CN89103101A CN1037293A CN 1037293 A CN1037293 A CN 1037293A CN 89103101 A CN89103101 A CN 89103101A CN 89103101 A CN89103101 A CN 89103101A CN 1037293 A CN1037293 A CN 1037293A
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Abstract
A kind of tool drive, in order to driving tool along its axial-movement with around its rotational, it comprises a main shaft that is bearing in the housing, a tool chuck that is contained in main shaft one end, first motor of a rotating spindle, it has first sleeve rotor, second motor of a drive main spindle axial motion, it has second sleeve rotor, and the transmission device that the rotation of first sleeve rotor is reached main shaft, with the conversion equipment that rotatablely moving of second sleeve rotor is converted to the axial motion of main shaft, the first rotor rotates with it by transmission device can the coaxial main shaft of engagement rotationally, and second rotor seesaws main shaft by conversion equipment reposefully.
Description
The present invention relates to a kind of tool drive, particularly a kind of single shaft tool drive is used so that the instrument of screw tap or drill bit and so on is done axially and rotatablely moved.
So far, the tool drive of tapping machine and so on all has two axles at least, promptly one with a motor drive shaft link with so that instrument reciprocating the axle and one with another motor drive shaft link in order to turning tool spool.By train of gearings with to-and-fro motion with rotatablely move and pass to the main shaft of support tool from these two axles.
People proposed a kind of tool drive, and wherein only with one and the coaxial mounted motor of main shaft, main shaft has a ball screw part and a ball spline shaft portion; By a clutch mechanism drive unit main shaft being produced with another kind rotatablely moves and to-and-fro motion (seeing that publication No. is the Japan Patent open source literature of 61-38892).
Preceding a kind of tool drive, generation to-and-fro motion and the device that rotatablely moves are made up of two or more out of line axles, and therefore, such tool drive has big external diameter, and requires big installing space.When the tool drive installation in position, must improve the Location accuracy of two axles.Another problem is, such tool drive is made up of a large amount of parts, and structure is very complicated.
The shortcoming of a kind of tool drive in back is, because main shaft is to rotate selectively and to-and-fro motion by clutch mechanism, instrument can not be reciprocating again when rotating.
Looked back after the tool drive in the past, proposition an object of the present invention is to provide a kind of tool drive, it has only one not only can produce and rotatablely move but also can produce reciprocating axle, and its compact dimensions easy operating is only required very little installing space.
Another object of the present invention provides the few tool drive of a kind of number of spare parts, the Location accuracy height of part, and can produce motion stably.
Tool drive provided by the invention can make instrument can make instrument along its rotational again along its axial-movement, and this device comprises: a housing; One is bearing in the housing and the main shaft that extends therein, and its end stretches out housing; A claw that is contained in main shaft one end in order to clamping device; One first motor, it is arranged in the housing, with so that main shaft rotates, is made up of with first stator that is fixed on the housing first sleeve rotor around the main shaft configuration; One second motor, it also is arranged in the housing, but separates with first motor, with so that main shaft is done axial motion, is made up of with second stator that is fixed on the housing second sleeve rotor around the main shaft configuration; Rotatablely moving of first sleeve rotor passed to the device of main shaft, and this transmission device is arranged between first sleeve rotor and the main shaft; Rotatablely moving of second sleeve rotor is converted to the device of the axial motion of main shaft, and this conversion equipment is arranged between second sleeve rotor and the main shaft.
When first motor rotated by certain selected opposite direction, the first rotor rotated, but main shaft rotates by above-mentioned transmission device and the engagement of the first rotor co-rotation ground thereupon.When second motor during by selected certain opposite direction rotation, second rotor rotates, and main shaft is by above-mentioned conversion equipment, and rotatablely moving of second rotor is converted to the axial motion of main shaft, and main shaft can be done axial motion reposefully forward or backward.
Above-mentioned purpose with other of the present invention, and characteristic and advantage can more clearly obtain understanding to embodiment's explanation by following in conjunction with the accompanying drawings, wherein provide the most preferred embodiment that illustrates usefulness.
Fig. 1 is first embodiment's of a tool drive of the present invention sectional elevation;
Fig. 2 is second embodiment's of a tool drive of the present invention sectional elevation;
Fig. 3 is that sectional elevation is amplified in the part of anti-backlash mechanism of the sleeve rotor of tool drive shown in Figure 2;
Fig. 4 is the expansion schematic representation of the external screw thread on the quill of tool drive shown in Figure 2;
Fig. 5 is the 3rd embodiment's of a tool drive of the present invention sectional elevation;
Fig. 6 is the local amplification front elevation of sleeve rotor one end of tool drive shown in Figure 5;
Fig. 7 is the sectional elevation of sleeve rotor end shown in Figure 6;
Fig. 8 is the end elevation along Fig. 6 VIII-VIII line;
Fig. 9 is the sectional elevation along Fig. 6 IX-IX line;
Figure 10 is the 4th embodiment's of a tool drive of the present invention sectional elevation;
Figure 11 is the partial cross sectional view of tool drive shown in Figure 10, has expressed screw thread on the sleeve rotor internal circular surfaces and the screw thread on the cannulated sleeve axle outer round surface;
Figure 12 is the partial view of tool drive shown in Figure 10, has expressed roller and female member thereof;
Figure 13 is the schematic representation of ball motion mode.
Figure 1 shows that first embodiment's of tool drive of the present invention sectional elevation.
This tool drive comprises a housing 1, and this housing 1 has a front portion (right side of Fig. 1), and the first rotor parts of being made up of the first rotor 2 and ball spline bearing 3 are rotatably supported in wherein with rolling bearing 5,6.Sleeve rotor 2 is a cylindrical shape substantially, and it and ball spline bearing 3 all have flange separately, are firmly fastened to each other together, have formed the first rotor parts.
Annular permanent magnet group 21 is fixed on around first sleeve rotor 2.First stator 22 with armature coil 23 is arranged in the housing 1, and fixes on it, and is radially relative with permanent magnet 21, and a little gap is arranged between the two.First sleeve rotor 2 and first stator 22 that are fixed with permanent magnet 21 have been formed first motor 24 jointly.Similarly, annular permanent magnet group 25 is fixed on around second sleeve rotor 7.Second stator 26 with armature coil 27 is fixed on the housing 1, and second sleeve rotor 7 and second stator 26 of band permanent magnet 25 have been formed second motor 28 jointly.
Stator coil or be called armature coil 23,27 and photoelectric sensor 33,36 is electrically connected with control gear (not showing on the figure).This control gear has the control circuit of a response from the signal of the photoelectric sensor 33,36 that detects motor 24,28 angular displacements, and it controls the rotation of these two motors 24,28 with the method for synchronization.The synchronous speed ratio of motor 24,28 can be gone up at an external control dish (not showing on the figure) and select.
The operation of the tool drive of Gou Chenging will be described below like this.
When first and second motors 24,28 rotate synchronously, make first and second sleeve rotors 2,7 when always producing same angular displacement, main shaft 13 is rotated by ball spline bearing 3, because roller feed nut 8 rotates with same speed synchronization with main shaft 13, and ball screw 15 is not produced any effect, 13 on main shaft rotates as a result.
When first motor 24 is cut off, have only second motor 28 when rotating, main shaft 13 is stopped by ball spline bearing 3, can not rotate, but but axial motion.The rotation of roller feed nut 8 causes that main shaft 13 produces axial motion, and this depends on the helical pitch of ball screw 15.
When first and second motors 24,28 rotated with friction speed, main shaft 13 was rotated by ball spline bearing 3, and its rotating speed equals the rotating speed of first motor 24.Roller feed nut 8 is made relative rotary motion, and its relative rotation speed equals the poor of two motors, 24,28 rotating speeds.The helical pitch of this speed discrepancy and ball screw 15 is depended in the axial motion of main shaft 13.Therefore, main shaft 13 is done synthetic motion, promptly around its rotational, does axial motion simultaneously again.Therefore, suitably control the rotating speed and the sense of rotation of first and second motors 24,28, main shaft 13 just can make tapping tool 17 go up at workpiece (not showing on the figure) and form screw thread.Main shaft 13 also can be controlled so as to does complicated resultant motion, and this needs only the rotating speed of suitably controlling two motors 24,28 and can realize.
For example, first motor 24 is with rotational speed N
1Rotation, second motor 28 is with rotating speed (N simultaneously
1+ N
2) rotate synchronously with first motor 24, so that main shaft 13 is done the one-way spiral motion, its rotating speed is N
1, pitch is N
2L/N
1(wherein L represents the helical pitch of leading screw 15).When first motor 24 with rotating speed-N
1(negative sign (-) is represented counterrotating here), and second motor 28 is with rotating speed (N
1-N
2) rotate synchronously with first motor, main shaft 13 will be done the withdrawing motion, and its rotating speed is N
1, pitch is N
2L/N
1The pitch N of spiral motion or withdrawing motion
2L/N
1Can be by changing rotational speed N
2Obtain conversion with the rotating ratio of motor 24,28.
When motor 24,28 energisings, the resistance of the coil 23,27 of stator 22,26 can produce heat, and this available pressurized air by air intlet 42 inputs cools off and distributes.
Import from air intlet 42 through the pressurized air that filters (not showing on the figure) dedusting, spray into chamber 43,44 from air intlet 46,47 then, and pass the gap in the stator 22,26, discharge housing 1 by outlet 48,49 then.When air passes gap in the stator 22,26, taken away the heat of coil, make them obtain cooling.Because pressurized air is to force input, motor 24,28 can fully be cooled off, and needn't consider their rotating speed.So just can prevent that the heat of motor 24,28 generations from reaching the ball screw 15 of main shaft 13, avoids reducing owing to thermal expansion the precision of ball screw 15.
According to first embodiment, main shaft 13 is to be bearing in the shell 1 with coaxial ball spline bearing 3 and the roller feed nut 8 that is installed in the housing 1, and do rotation and axial motion, the structure of this supporting spindle, make the designs simplification that produces the main shaft compound movement, and the part number that constitutes this supporting structure is reduced also.
Because swivel assembly 2,7,13 etc. all is arranged on the same shaft axis, the quantity of rolling bearing 5,6,11,12 reduces, and the machining accuracy that the assembly of these rolling bearings is installed also is improved easily.In addition, the overall dimension that comprises the entire tool drive unit of housing 1 also can become compact.
The sleeve rotor the 2, the 7th of motor 24,28 and rotor part separately, the composition one, the space that therefore these rotating drive parts are installed is also little, and the number of spare parts of these actuators also reduces.
In the foregoing description, motor the 24, the 28th is contained on the sleeve rotor 2,7 separately, but also can cancels sleeve rotor 2,7, and permanent magnet 21,25 directly is fixed on the cylindrical of ball spline bearing 3 and roller feed nut 8, becomes motor unit.
Although ball spline 14 is arranged on the front portion of main shaft 13, and ball screw 15 is arranged on its rear portion, they also can complex method be arranged on the total length of main shaft 13, and this has just reduced the total length of tool drive.
Second embodiment of tool drive of the present invention will describe in conjunction with Fig. 2 to Fig. 4 below.
As shown in Figure 2, cannulated sleeve axle 51 usefulness plain bearing arrangement 64a, a 64b can be arranged on the center of housing 1 axially slidably.Cannulated sleeve axle 51 has an engagement of meshing with the block piece 65 that is fixed on the housing 1 partly, to prevent that this quill 51 is around its rotational.The 51a place is processed with outside thread on these quill 51 cylindricals.Main shaft 52 usefulness rolling bearing system 63a, 63b are rotatably supported in this cannulated sleeve axle.Main shaft 52 has a top, stretches out from this cannulated sleeve axle 51 and housing 1, and the dop 70 of setting tool (being a tapping tool 71 in a second embodiment) is housed on it.Main shaft 52 the other ends stretch out from contiguous with it cannulated sleeve axle 51 ends, and a series of axial splines groove 52a are arranged on its cylindrical, play the effect of driving element.First sleeve rotor, 54 usefulness rolling bearing 61a, 61b are rotatably supported in the contiguous with it spline 52a outside on housing 1 inner main axis 52.Axle sleeve has the ball spline 53 with spline 52a engagement, but by first sleeve rotor 54 near the key 54a co-rotation of the end of cannulated sleeve axles 51 and main shaft 52 is contained in first sleeve rotor 54 axially slidably.First motor 55 is arranged on outside, end contiguous with it on the main shaft 52, and is installed on the inner headed face of housing 1.It is reverse that the turning to of this first motor can be selected.Encoder 56 is arranged on first sleeve rotor, 54 adjacent end outside, in order to angular displacement and the rotating speed that detects first sleeve rotor 54.Second sleeve rotor, 57 usefulness rolling bearing 62a, 62b are rotatably supported in cannulated sleeve axle 51 outsides in the housing 1, it on 57a place be processed with cannulated sleeve axle 51 on the internal thread that meshes of outside thread 51a maintenance.Second motor 58 is arranged on cannulated sleeve axle 51 outsides, is installed on housing 1 internal circular surfaces, and the sense of rotation of motor 58 is selectively reverse.Encoder 59 is arranged on humorous and recruits mire 7 tops, in order to angular displacement and the rotating speed that detects second sleeve rotor 57.
The working condition of second embodiment's tool drive is as follows:
As shown in Figure 2, after 55 energisings of first motor, sleeve rotor 54 rotates towards a certain direction, by ball spline 53 drive main spindle 52 also rotation in the same direction.Simultaneously, the rotating speed of first sleeve rotor 54 is measured by encoder 56.According to the rotating speed that records, 58 energisings of second motor, to rotate second sleeve rotor 57 with first sleeve rotor, 54 synchronous or nonsynchronous modes, its sense of rotation is identical or opposite with first sleeve rotor 54.The rotatory force of second sleeve rotor 57 is passed to cannulated sleeve axle 51 by the outside thread 51a of its internal thread 57a and the cannulated sleeve axle 51 that is engaged with.Because cannulated sleeve axle 51 is blocked part 65 and stops and can not rotate, the rotatory force that reaches on the cannulated sleeve axle 51 is converted into its axial motion power towards the end motion of its relative housing 1 that drives.Therefore, main shaft 52 is when a direction is rotated, and it is again towards its terminal axial motion.When first motor 55 and the 58 controlled making of second motor were rotated synchronously, tapping tool 71 just processed screw thread on workpiece (end shows).
Illustrate that below in conjunction with accompanying drawing 4 rotatory force that will reach cannulated sleeve axle 51 is converted into the principle of axial motion power.Fig. 4 represents an outside thread unfolded drawing of cannulated sleeve axle 51.If the screw thread lead angle is θ, pitch is P, and the screw thread effective radius is r, and the rotatory force that reaches on the cannulated sleeve axle is T, and orientation movements power is F, and the correlation of these parameters is as follows:
F×P＝2πr×T/r＝2πT
Therefore, F=2 π T/P ... (1)
P＝2πr×tcnθ ……（2）
By equation (1) and (2), F=2 π T/(2 π rtan θ)=(T/r) (1/tan θ), so axial motion power F and rotatory force T are in direct ratio, and inversely proportional with r and tan θ.
In second embodiment, be the rotatory force of first sleeve rotor 54 to be passed to main shaft 52 with spline 52a and ball spline 53.Yet, also can on main shaft 52, axial keyway be set, make it and the key engagement that is contained on first sleeve rotor, 54 internal circular surfaces, so that rotatory force is passed to main shaft 52 by first sleeve rotor 54.
The 3rd embodiment below in conjunction with accompanying drawing 5 to 9 explanations tool drive of the present invention.
Fig. 5 to shown in Figure 9 and Fig. 2 to those parts shown in Figure 4 on 26S Proteasome Structure and Function identical each part, represent with same sequence number, will not elaborate.
On cannulated sleeve axle 51 outer round surface, be provided with a spiral prominence race 51c.Some cylindrical cam follower 76 usefulness fixed block 77 separately is contained in second sleeve rotor 57 with it on the internal circular surfaces of approach end 57b, and these cam followers can be contained in the cam path loosely around rotational separately.
To shown in Figure 9, totally 4 of above-mentioned cam followers 76 are represented with 76a to 76d as Fig. 6, and they are contained in separately independently on the cam follower fixed block 77a to 77d rotationally, keep axial clearance with the guide surface of the spiral chute 51c of cannulated sleeve axle 51.Cam follower 76a to 76d is arranged on the internal circular surfaces of the 57b of abutting end with it of second sleeve rotor 57, and circumferencial direction is equally spaced.Cam follower fixed block 77a is fixed on second sleeve rotor 57 with screw 78.Cam follower fixed block 77c radially on the other side prevents to move radially with screw 83a, and is fixed on the fixed block adjustment plate 79, and fixed block is adjusted plate and is installed on second sleeve rotor 57, adjusts screw 80 adjustable axles to the position by a fixed block.Cam follower fixed block 77b, 77d and cam follower fixed block 77a, 90 ° at interval of 77c circumferencial directions, with screw 83b separately, 83c prevents to move radially, and impose with a spring grip block 81 and spring 82 and to make them away from cam follower fixed block 77a, the power of 77c, spring grip block 81 and spring 82 are to be contained on the adjacent face of second sleeve rotor 57 with screw 84.Cam follower 76a to 76d is contained among the cam path 51c of cannulated sleeve axle 51 loosely.Cam follower 76a, 76c adjusts plate 79 by fixed block and fixed block adjustment screw 80 is pressed against on the side wall surface of cam path 51c, and cam follower 76b, 76d is pressed against on the opposite side wall of cam path 51c by spring grip block 81 and spring 82.Use this structure, any gap between cam follower 76a to 76d and cam path 51c all can be eliminated, thereby whenever the axial internal clearance of cannulated sleeve axle 51 all can be eliminated.
The 3rd embodiment's of tool drive of the present invention working condition is as follows:
As shown in Figure 5, when the energising of first motor 55 makes first sleeve rotor 54 when a certain direction is rotated, main shaft 52 also turns in the same direction by ball spline 53.At this moment, the rotating speed of first sleeve rotor 54 is measured by encoder 56.According to the rotating speed that records, 58 energisings of second motor, with first sleeve rotor, 54 synchronous or nonsynchronous modes second sleeve rotor 57 is rotated, its sense of rotation is identical or opposite with first sleeve rotor 54.The rotatory force of second sleeve rotor 57 reaches cannulated sleeve axle 51 by the spiral prominence race 51c that cooperates with these cam followers on a plurality of cam followers 76 on it and the cannulated sleeve axle 51.Stop and can not rotate because cannulated sleeve axle 51 is blocked part 65, reach rotatory force on the cannulated sleeve axle 51 and be converted into and drive it towards its axial motion power with respect to the end motion of housing 1.Therefore, main shaft 52 is when a direction is rotated, and it makes tapping tool 71 process screw thread on the workpiece (not shown) again towards its terminal axial motion.
Although in above-mentioned the 3rd embodiment, be formed in as the cam path 51c of a member of quill driving mechanism on the outer round surface of this cannulated sleeve axle, and be contained on second sleeve rotor 57 as the cam follower 76 of another member of quill driving mechanism, but also can conversely cam follower 76 be contained on the cannulated sleeve axle 51.And cam path 51c is formed on the internal circular surfaces of second sleeve rotor 57.
The 4th embodiment of this tool drive is with 10 to Figure 13 explanations in conjunction with the accompanying drawings below.
The part that those 26S Proteasome Structure and Functions among Figure 10 to Figure 13 are identical with Fig. 2 to Fig. 4 is represented with same sequence number, will not elaborate.
If the internal thread 57c of second sleeve rotor 57 is too short, ball 86 will drop out after moving to the end of internal thread 57c.Therefore, internal thread 57c answers long enough to move in the groove of ball 86 between outside thread 51d and internal thread 57c allowing, and can not drop out.If the length of internal thread 57c does not allow to increase, a mechanism that allows ball 86 make shuttling movement then can be set, for example common ball screw framework moves ball 86 between outside thread 51d and internal thread 57c, and unlikely dropping out.
As shown in figure 12, the slightly larger in diameter of ball 86 is in above-mentioned thread groove space, and ball 86 just contacts on four points with thread groove like this.Therefore, second sleeve rotor 57 and cannulated sleeve axle 51 be by ball 86 preloads, eliminating any axial clearance of cannulated sleeve axle 51, thereby eliminated the play of cannulated sleeve axle 51, and increased its rigidity.
The 4th embodiment's of this tool drive working condition is as follows:
Referring to Figure 10, when the energising of first motor 55 makes first sleeve rotor 54 when a certain direction is rotated, main shaft 52 also rotates towards a direction by ball spline 53.At this moment, the rotating speed of first sleeve rotor 54 is measured by encoder 56.According to the rotating speed that records, 58 energisings of second motor are turn in the same direction second sleeve rotor 57 with first sleeve rotor, 54 synchronous or nonsynchronous modes.The rotatory force of second sleeve rotor 57 reaches cannulated sleeve axle 51 by internal thread 57c on it and the outside thread 51d on the cannulated sleeve axle 51.Because cannulated sleeve axle 51 is blocked part 65 and stops and can not rotate, reach rotatory force on the cannulated sleeve axle 51 and be converted into and make it towards its axial motion power with respect to the end motion of housing 1.Therefore, when main shaft 52 rotates towards a direction, do axial motion towards its end again.When the controlled synchronous rotation of first motor 55 and second motor 58, tapping tool 71 just processes screw thread on the workpiece (not shown).
Figure 13 illustrates when second sleeve rotor 57 rotates, the motion mode of ball 86.Suppose that this sleeve rotor turns over an angle θ
1, ball 86 turns over angle θ
2, at this moment, in the thread groove of cannulated sleeve axle 51, move for making ball 86, ball 86 motion apart from l
1Can determine by following formula:
l
1＝ (θ
2)/360 ×π
For ball 86 is moved, and can not drop out the ball 86 relative relative distance l that it moves in the thread groove of second sleeve rotor 57 in the thread groove of second sleeve rotor 57
2, can be logical fixed by following formula:
l
1＝ (θ
1- θ
2)/360 ×π
For the circumferential surface of ball 86, because apart from l
1And l
2Be equal to each other rotational angle theta
1And θ
2Between following relation arranged:
θ
2＝ (R′)/(R′+r′) ·θ
1
Wherein: R '=
r′＝
Suppose that the ultimate range that cannulated sleeve axle 51 moves is Lmax, the maximum angle θ that sleeve rotor 57 turns over
1Max can be represented by the formula:
θ
1max＝ (Lmax)/(P) ×360°
Therefore, the maximum angle θ that turns over of ball 86
2Max is determined by following formula:
θ
2max＝ (R′)/(R′+r′) ·θ
1max
Ultimate range L ' the max of ball 86 axial motions represents with following formula:
L′max＝P·θ
2max
As long as the length of the internal thread 57c of second sleeve rotor 57 is greater than the extreme length of ball 86 axial motions, ball 86 just can be at screw thread 51d, the last motion of 57c, and can not drop out.
In the 4th embodiment, by the way of the internal thread 57c with suitable length is set on second sleeve rotor 57, provide a kind of simply will rotatablely moving to be converted into straight-line mechanism, and do not made the mechanism of ball 86 shuttling movements and any other need not be set.
According to the present invention who is described in detail above, but only rotate and axial motion with regard to driving tool with a single shaft, and rotatablely move and the drive motor of axial motion is again to be contained in this single shaft outside coaxially, thereby the size of tool drive (especially its external diameter) is reduced, tool drive becomes easily to Workpiece boring or tapping, has reduced installing space, has reduced number of spare parts, after the assembling, the Location accuracy of each member is improved.Because do not have gear in the actuating unit, the noise of generation is also little, can carry out work reposefully.It rotatablely moves and axially reciprocating can be selected.Because the rotating speed of the main shaft of tool drive and feed movement speed can be by automatically controlled synchronous, the pitch of motion of main shaft also can change easily.
Although only provide and limited several embodiments have been described, be appreciated that also and can make many variations and modification, and do not exceed the scope of claims.
Claims (7)
1, a kind of tool drive, along its axial-movement with around its rotational, this tool drive is made of following component in order to driving tool:
A housing;
A main shaft, it is bearing in the housing and extends therein, and this main shaft has an end to stretch out housing;
A tool chuck, it is contained in the above-mentioned end of main shaft, in order to clamping device;
One first motor, it is arranged in the housing, and in order to rotating spindle, it has one first sleeve rotor, is arranged on the main shaft outside, and it also has one first stator, is fixed on the housing;
One second motor, it also is arranged in the housing, but separates with above-mentioned first motor, does axial motion in order to drive main spindle, and this second motor has one second sleeve rotor, is arranged on the main shaft outside, and it also has one second stator, is fixed on the housing;
Rotatablely moving of above-mentioned first sleeve rotor reached the device of main shaft, and this transmission device is arranged between above-mentioned first sleeve rotor and the main shaft;
Rotatablely moving of above-mentioned second sleeve rotor is converted into the device of the axial motion of main shaft, and this conversion equipment is arranged between above-mentioned second sleeve rotor and the main shaft;
And according to the control gear of described first and second motors of input command control that the operator gave.
2, according to the described tool drive of claim 1, wherein said housing is an enclosed construction, it have one with the inner space UNICOM of this housing and can be associated in import on the source of compressed air and one will discharge the air outlet slit of this housing from the air that this air intlet is input to above-mentioned inner space and flows through above-mentioned first motor or above-mentioned second motor.
3, according to the described tool drive of claim 1, wherein said transmission device comprises the spline that is integrally formed on the described main shaft, be formed with on described first sleeve rotor can with the spline of above-mentioned spline engagement, with so that described main shaft rotate with described first sleeve rotor around its axis.
4, according to the described tool drive of claim 1, wherein said conversion equipment is made up of a screw mechanism, it comprise form the outside thread on the described main shaft outer round surface and be formed on the described second sleeve rotor internal circular surfaces can with the internal thread of above-mentioned outside thread engagement.
5, according to the described tool drive of claim 1, it also has a cannulated sleeve axle, be contained in described main shaft outside coaxially, and axially be contained in the described housing slidably, described main shaft is to be arranged on rotationally in the described cannulated sleeve axle, wherein said conversion equipment is made up of a screw mechanism, it comprise be formed on the outside thread on the described cannulated sleeve axle periphery and be formed on the described second sleeve rotor inner headed face can with the internal thread of above-mentioned outside thread engagement.
6, according to the described tool drive of claim 1, it also has a cannulated sleeve axle, be contained in described main shaft outside coaxially, and axially be contained in the described housing slidably, described main shaft is to be arranged on rotationally in the described cannulated sleeve axle, wherein said conversion equipment is made up of a ball-screw apparatus, it comprises the outside thread that is formed on the described cannulated sleeve axle periphery, with be formed on the described second sleeve rotor inner headed face can with the internal thread of above-mentioned thread engagement, and between above-mentioned internal and external threads, ball is housed.
7, according to the described tool drive of claim 1, it also has a cannulated sleeve axle, be contained in described main shaft outside coaxially, and axially be contained in the described housing slidably, described main shaft is to be arranged on rotationally in the described cannulated sleeve axle, wherein said conversion equipment is made up of a cam mechanism, it comprises spiral cam and the cam follower that is engaged with, wherein spiral cam both can be arranged on the periphery of described cannulated sleeve axle, also can be arranged on the inner headed face of described second sleeve rotor, cam follower both can be provided with and be contained on the inner headed face of described second sleeve rotor, also can be provided with and be contained on the periphery of described cannulated sleeve axle.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63074018A JPH01247866A (en) | 1988-03-28 | 1988-03-28 | Single shaft complex motion device |
| JP74018/88 | 1988-03-28 | ||
| JP267815/88 | 1988-10-24 | ||
| JP267814/88 | 1988-10-24 | ||
| JP3894189A JP2767860B2 (en) | 1989-02-17 | 1989-02-17 | Processing unit |
| JP38941/89 | 1989-02-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1037293A true CN1037293A (en) | 1989-11-22 |
| CN1017124B CN1017124B (en) | 1992-06-24 |
Family
ID=26378252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89103101 Expired CN1017124B (en) | 1988-03-28 | 1989-03-28 | Tool driving unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1017124B (en) |
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-
1989
- 1989-03-28 CN CN 89103101 patent/CN1017124B/en not_active Expired
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| FR3114927A1 (en) * | 2020-10-02 | 2022-04-08 | France Reducteurs | device for driving in rotation at least one shaft, a machine tool and a rolling machine equipped with such a device |
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