CN104101497B - Servo tune centre-to-centre spacing gearbox drive calibrating device and method of calibration thereof - Google Patents
Servo tune centre-to-centre spacing gearbox drive calibrating device and method of calibration thereof Download PDFInfo
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Abstract
Servo tune centre-to-centre spacing gearbox drive calibrating device and the method for calibration thereof in a kind of Machining Technology field, this device comprises: slide and be arranged at the radially two degrees of freedom governor motion with mainshaft mechanism in axial feed mechanism, radially two degrees of freedom governor motion comprises: two-dimensional active frame, driver module and accurate lead screw nut body, mainshaft mechanism is movably set in two-dimensional active frame and one end is connected with drive motors, two groups of driver modules and accurate lead screw nut body be corresponding X-axis and the Z-direction that is arranged at two-dimensional active frame respectively, two-dimensional active frame is slidably connected by the line slideway realization in Y direction and axial feed mechanism. the present invention realizes the high accuracy adjustment of centre-to-centre spacing by servo control mechanism, and can be by the speed changer of multiple different centre-to-centre spacing taking power shaft as public axle center, output shaft drive assembly design becomes adjustable, except former axial feed, increase radially two degrees of freedom high accuracy regulatory function, make it meet the requirement that becomes centre-to-centre spacing.
Description
Technical field
What the present invention relates to is the device in a kind of Machining Technology field, and specifically a kind of high-precision servo is adjusted centre-to-centre spacing speed changerDrive calibration equipment and method of calibration thereof.
Background technology
Mostly now widely used loading checking table is the transmission design for a certain specific model, wherein drive speed transmission inputThe relative position of the drive unit of axle and output shaft is changeless (determining according to transmission input shaft and output shaft axle center spacing).As need the speed changer of the different centre-to-centre spacing of verification, must redesign and manufacture the checking table matching with its centre-to-centre spacing, utilization rate of equipment and installationsLower, the cost that has increased speed changer manufacturing enterprise drops into. Adjust the drive unit of centre-to-centre spacing by design high-precision servo, by multipleThe speed changer of different centre-to-centre spacing is taking power shaft as public axle center, that output shaft drive assembly design becomes is adjustable (except former axial feed,Increase radially two degrees of freedom high accuracy regulatory function), make the speed changer of multiple different centre-to-centre spacing can verification on same checking table, adoptBy Siemens 1FK series synchronous servo motor, Siemens SINAMICSS120 drive system, control system be Siemens S7 ?300Series of PLC, by the direct input position numerical value of the picture on industrial computer or touch-screen, then drives servo by PLC control-driven systemMotor arrives target location, and adjustment completes, thereby has saved substantial contribution input, also makes lathe have larger compatibility simultaneously,Flexibility degree improves greatly.
Through the retrieval of prior art is found, Chinese patent literature CN101915669A open (bulletin) day2010.12.15, disclose the center distance-variable gearbox drive calibrating in a kind of Machining Technology field, having comprised: main shaft machineStructure, transmission mechanism and two degrees of freedom base, wherein: mainshaft mechanism and transmission mechanism are rotationally connected, and mainshaft mechanism is fixedly installed on twoOn free degree base. But this technology automaticity is lower, and the overall operation time is longer, be difficult to meet present stage industry needs.
Summary of the invention
The present invention is directed to prior art above shortcomings, propose a kind of servo tune centre-to-centre spacing gearbox drive calibrating device andMethod of calibration, the high accuracy adjustment of centre-to-centre spacing is realized by servo control mechanism in innovation ground, and can be by the speed changer of multiple different centre-to-centre spacingTaking power shaft as public axle center, output shaft drive assembly design becomes adjustable, except former axial feed, increases radially two degrees of freedomHigh accuracy regulatory function, makes it meet the requirement that becomes centre-to-centre spacing.
The present invention is achieved by the following technical solutions:
The present invention relates to a kind of servo tune centre-to-centre spacing gearbox drive calibrating device, comprising: slide and be arranged in axial feed mechanismThe radially two degrees of freedom governor motion with mainshaft mechanism, radially two degrees of freedom governor motion comprises: two-dimensional active frame, drivingModule and accurate lead screw nut body, wherein: mainshaft mechanism is movably set in two-dimensional active frame and one end and drive motors phaseConnect, two groups of driver modules and accurate lead screw nut body be corresponding X-axis and the Z-direction that is arranged at two-dimensional active frame respectively, and twoDimension movable machine frame is slidably connected by the line slideway realization in Y direction and axial feed mechanism.
Described mainshaft mechanism comprises: main spindle box and universal coupling, wherein: main spindle box is arranged at radially two degrees of freedom and regulates machineIn the two-dimensional active frame of structure, the two ends of universal coupling are connected with drive motors with main spindle box respectively.
Described two-dimensional active frame comprises: base, two groups of orthogonal line slideway groups and slide unit support, wherein: baseBe slidably connected by X-axis line slideway group with slide unit support, mainshaft mechanism and slide unit support are slidably connected by Z axis line slideway group,Base and axial feed mechanism are slidably connected.
Described axial feed mechanism is provided with the driver module and the accurate lead screw nut that are connected with the line slideway in Y directionMechanism.
Described driver module adopts servomotor, hydraulic cylinder or pneumatic cylinder to realize.
Described accurate lead screw nut body is made up of high precision ball screw mandrel and feed screw nut's seat, wherein: high precision ball screw mandrelTwo ends be connected with feed screw nut's seat with the output of driver module respectively, feed screw nut's seat is fixedly connected with main spindle box or slide unit support.
In the time that described driver module adopts servomotor, the output shaft of this servomotor is by shaft coupling and high precision ball screw mandrelBe connected.
In described axial feed mechanism and described two-dimensional active frame, be preferably provided with limited block, realize displacement model by limited blockThe restriction of enclosing.
Described slide unit support is provided with main spindle box balanced controls, and these main spindle box balanced controls comprise: compact cylinder and compensating cylinder peaceDress plate, wherein: compensating cylinder installing plate is arranged in two-dimensional active frame, compact cylinder is arranged on compensating cylinder installing plate, compact gasCylinder is by being connected with main spindle box from centering connector.
The method of calibration that the present invention relates to said apparatus, comprises the following steps:
1) fixed transmission power shaft axial location is constant, on the basis not being subjected to displacement at drive motors main shaft, by regulating YServomotor on direction of principal axis moves main spindle box, makes output shaft and power shaft horizontal range reach X0, and be set to horizontal zero, waterStratosphere position remains on the centre position of drive motors high precision ball screw mandrel so that the maximization of left and right adjusting scope as far as possible;
2) regulate servomotor to make output shaft and power shaft vertical range reach Y0, and being set to vertical zero-bit, vertical zero-bit is as far as possibleRemain on the centre position of drive motors high precision ball screw mandrel so that the maximization of up-down adjustment scope; And by (X0，Y0) position noteRecord is initial original position;
3) in the time needing verification speed changer A, by the horizontal range X of the power shaft of speed changer A and output shaft1With initial original position levelDistance X0Subtract each other, i.e. X1‐X0＝ΔX1, by its corresponding high precision ball leading screw of the driven by servomotor in X-direction, at waterSquare to displacement Δ X1To X1And store in PLC; And use limited block spacing in adjustable displacement place of maximum.
4) by the vertical range Y of the power shaft of speed changer A and output shaft1With initial original position horizontal range Y0Subtract each other,Y1‐Y0＝ΔY1, by the driven by servomotor in Y-axis its corresponding high precision ball leading screw, in the vertical direction displacement Δ Y1To Y1And storage, finally preserve displacement deviator (X1，Y1) and record the mapping relations of itself and speed changer A.
In the time of verification different model speed changer, its displacement deviator of corresponding stored (X2，Y2), can regulate machine in two degrees of freedom radiallyIn the adjustable range that structure allows, regulate the different speed changer of any centre-to-centre spacing.
Technique effect
Compared with prior art, the present invention has used universal coupling and line slideway, makes full use of universal coupling and has largerThe feature of angular compensatory ability, having realized in main spindle box axle center and drive motors axle center out-of-alignment situation (is that main spindle box drives at screw mandrelAfter moving lower vertically moving), driving power can normal transmission.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
In figure: a is stereogram; B is front view; C is side view.
Tu2Wei Tiao center servo structure schematic diagram;
Fig. 3 is universal coupling Z-type work schematic diagram.
Fig. 4 is embodiment working state schematic representation.
Detailed description of the invention
Below embodiments of the invention are elaborated, the present embodiment is implemented under taking technical solution of the present invention as prerequisite,Provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
As Fig. 1 a ?as shown in c, the present embodiment comprises: mainshaft mechanism, radially two degrees of freedom governor motion and axial feed mechanism,Wherein: mainshaft mechanism is fixedly installed on radially on two degrees of freedom governor motion, axial feed mechanism and two degrees of freedom governor motion radiallyBe connected.
Described mainshaft mechanism comprises: main spindle box 1 and universal coupling 2. Main spindle box 1 is fixedly installed on radially two degrees of freedom and adjustsIn joint mechanism; Universal coupling 2 one end are connected with main spindle box 1, and the other end is connected with drive motors.
Described radially two degrees of freedom governor motion comprises: base 28, slide unit support 5, horizontal linear guide rail 29, straight verticalLine guide rail 3, slider locking device 44, servomotor 8,21, servomotor seat 11,16, high precision ball screw mandrel 12,15,Feed screw nut's seat 14,19, shaft coupling 9,17, Horizontal limiting piece 25, vertical limited block 10, main spindle box installing plate 13 and mainAxle box balanced controls 6.
Rotary motive power is passed to main spindle box 1 by described universal coupling 2.
As shown in Fig. 1 b and Fig. 1 c, described axial feed mechanism comprises: base 26, line slideway 27, servomotor 21,Servomotor seat 23, ball screw 43, feed screw nut's seat 20, shaft coupling 22, limited block 24. Wherein on base 26, install straightLine guide rail 27, installs radially two degrees of freedom governor motion on the slide block of line slideway 27. Divide on servomotor seat 23 both sides in additionServomotor 21 and ball screw (NSK) are not installed, and both are connected by shaft coupling, on ball screw (NSK) nut, screw mandrel are housedNut seat 20, is connected with two degrees of freedom governor motion base 28 radially by feed screw nut's seat 20, forms axial feed mechanism,And mounting limit piece 24 limits feed range on base.
As shown in Figure 2, this device is realized the high accuracy adjustment of centre-to-centre spacing by servo control mechanism. On servomotor seat 31 both sidesServomotor 30 and support unit 33 and high precision ball screw mandrel 34 are installed respectively, and both are connected by shaft coupling 32, ball wireFeed screw nut's seat 35 is housed on stem nut 36, and feed screw nut's seat 35 is connected with two degrees of freedom governor motion radially again, and centre is furnished withAdjust backing plate 37 and eliminate gap. Feed screw nut's seat 35 belows are equipped with and are stopped nut 39, at its linear movement direction, and two ends peaceDress limited block 40. Limited block 40 is equipped with and stops nut 39 and adjust packing ring 38, and setting maximum displacement is 40 two of limited blocksStop that nut 39 air line distances (81mm) deduct feed screw nut's seat 35 both sides and stop that nut 39 gross thickness (41mm) are 40mm.
In use, first fixed transmission power shaft axial location is constant for this device, by regulating servomotor 21 to make outputAxle and power shaft horizontal range reach X, and are set to horizontal zero; Regulate again servomotor 8 to make output shaft distance vertical with power shaftFrom reaching Y, and be set to vertical zero-bit, (X, Y) data are defined as to initial original position by PLC computer program record; When needing schoolWhile testing speed changer A, the horizontal range X1 of the power shaft of speed changer A and output shaft and initial original position horizontal range X are subtracted each other,X1 ?X=Δ X1, drive high precision ball leading screw by servomotor 21, move in the horizontal direction distance, delta X1 to X1 and storage;The vertical range Y1 of the power shaft of speed changer A and output shaft and initial original position horizontal range Y are subtracted each other simultaneously, Y1 ?Y=Δ Y1,Drive high precision ball leading screw by servomotor 8, displacement Δ Y1 to Y1 storage in the vertical direction, finally at PLC electricityThe new coordinate points speed changer A of brain program storage (X1, Y1) is special, conveniently calls from now on. Should need verification speed changer B together time,The new coordinate points speed changer B that can store (X2, Y2) is special; By that analogy, the tune allowing at two degrees of freedom governor motion radiallyIn adjusting range, can regulate the speed changer that any centre-to-centre spacing is different.
This device makes full use of universal coupling and has the feature of larger angular compensatory ability, has realized main spindle box 1 axle center and has drivenIn moving electrical axis out-of-alignment situation (be main spindle box 1 occur radially two degrees of freedom moves after), drive the power can normal transmission.
As shown in Figure 4, after main spindle box 1 moves along horizontal linear guide rail 29 or vertical line guide rail 3, universal coupling 2Jackshaft deflects, and now rolls the relative drive motors of main spindle box 1 and has moved axially a section and move, universal coupling 2 two ends, left and rightUniversal joint 41,42 keeping parallelism that is still connected with main spindle box 1 with drive motors respectively, when now universal coupling 2 is workedMounting means is Z-type, and the rotating speed of drive motors is passed to main spindle box 1 without loss. The cross steering angle of universal coupling 2 can reach20 °, realize object of the present invention, in the time of the different speed changer of verification input and output shaft distance of shaft centers, output shaft drive unit canRadially two degrees of freedom moves, and drives power can can't harm normal transmission.
Claims (8)
1. a servo tune centre-to-centre spacing gearbox drive calibrating device, is characterized in that, comprising: slide and be arranged at axial feed machineThe radially two degrees of freedom governor motion with mainshaft mechanism on structure, radially two degrees of freedom governor motion comprises: two-dimensional active frame,Driver module and accurate lead screw nut body, wherein: mainshaft mechanism is movably set in two-dimensional active frame and one end and driving electricityMachine is connected, and the X-axis of two-dimensional active frame and Z-direction are respectively provided with respectively a driver module and an accurate lead screw nut body,Two-dimensional active frame is slidably connected by the line slideway realization in Y direction and axial feed mechanism;
Described mainshaft mechanism comprises: main spindle box and universal coupling, wherein: main spindle box is arranged at radially two degrees of freedom governor motionTwo-dimensional active frame on, the two ends of universal coupling are connected with drive motors with main spindle box respectively;
Described two-dimensional active frame comprises: base, two groups of orthogonal line slideway groups and slide unit support, wherein: base andSlide unit support is slidably connected by X-axis line slideway group, and mainshaft mechanism and slide unit support are slidably connected by Z axis line slideway group,Base and axial feed mechanism are slidably connected.
2. servo tune centre-to-centre spacing gearbox drive calibrating device according to claim 1, is characterized in that, described axially entersBe provided with the driver module and the accurate lead screw nut body that are connected with the line slideway in Y direction to mechanism.
3. servo tune centre-to-centre spacing gearbox drive calibrating device according to claim 1, is characterized in that described driving mouldPiece adopts servomotor, hydraulic cylinder or pneumatic cylinder to realize.
4. servo tune centre-to-centre spacing gearbox drive calibrating device according to claim 1 and 2, is characterized in that described essenceClose leading screw and nut mechanism is made up of high precision ball screw mandrel and feed screw nut's seat, wherein: the two ends of high precision ball screw mandrel respectively with driveThe output of dynamic model piece is connected with feed screw nut's seat, and feed screw nut's seat is fixedly connected with main spindle box or slide unit support.
5. servo tune centre-to-centre spacing gearbox drive calibrating device according to claim 3, is characterized in that, when described drivingWhen module adopts servomotor, the output shaft of this servomotor is connected with high precision ball screw mandrel by shaft coupling.
6. servo tune centre-to-centre spacing gearbox drive calibrating device according to claim 1, is characterized in that, described axially entersBe provided with limited block to mechanism and described two-dimensional active frame, realize the restriction of displacement range by limited block.
7. servo tune centre-to-centre spacing gearbox drive calibrating device according to claim 1, is characterized in that, described slide unit props upFrame is provided with main spindle box balanced controls, and these main spindle box balanced controls comprise: compact cylinder and compensating cylinder installing plate, wherein: compensating cylinderInstalling plate is arranged in two-dimensional active frame, and compact cylinder is arranged on compensating cylinder installing plate, and compact cylinder passes through from centering connectorBe connected with main spindle box.
8. according to a method of calibration for arbitrary described device in claim 1-7, it is characterized in that, comprise the following steps:
1) fixed transmission power shaft axial location is constant, on the basis not being subjected to displacement at drive motors main shaft, by regulating Y-axisServomotor in direction moves main spindle box, makes output shaft and power shaft horizontal range reach X0, and be set to horizontal zero, levelZero-bit remains on the centre position of drive motors high precision ball screw mandrel so that the maximization of left and right adjusting scope as far as possible;
2) regulate servomotor to make output shaft and power shaft vertical range reach Y0, and being set to vertical zero-bit, vertical zero-bit is protected as far as possibleBe held in the centre position of drive motors high precision ball screw mandrel so that the maximization of up-down adjustment scope; And by (X0，Y0) position recordFor initial original position;
3) in the time needing verification speed changer A, by the horizontal range X of the power shaft of speed changer A and output shaft1With initial original position level distanceFrom X0Subtract each other, i.e. X1-X0＝△X1, by its corresponding high precision ball leading screw of the driven by servomotor in X-direction, in levelDirection displacement △ X1To X1And store in PLC; And use limited block spacing in adjustable displacement place of maximum;
4) by the vertical range Y of the power shaft of speed changer A and output shaft1With initial original position horizontal range Y0Subtract each other, i.e. Y1-Y0＝△Y1，By the driven by servomotor in Y-axis its corresponding high precision ball leading screw, in the vertical direction displacement △ Y1To Y1And storage,The final displacement deviator (X that preserves1，Y1) and record the mapping relations of itself and speed changer A;
In the time of verification different model speed changer, its displacement deviator of corresponding stored (X2，Y2), can be at two degrees of freedom governor motion radiallyIn the adjustable range allowing, regulate the different speed changer of any centre-to-centre spacing.
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| CN105299400B (en) * | 2015-10-22 | 2018-09-21 | 青岛海信移动通信技术股份有限公司 | A kind of adjustable base and projection device of projection device |
| CN110871355A (en) * | 2018-08-31 | 2020-03-10 | 上海电驱动股份有限公司 | Drive motor initial position correcting unit |
| CN111307434B (en) * | 2020-03-07 | 2021-10-12 | 芜湖清川电气有限公司 | Batch detection testing machine and detection method for servo motor after production and assembly |
| CN113418698B (en) * | 2021-06-07 | 2023-12-22 | 迅蓝智能科技(洛阳)有限公司 | Centering debugging method for transmission system of transmission |
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