CN104101497A - Center distance-servo adjusting transmission driving calibration device and method thereof - Google Patents
Center distance-servo adjusting transmission driving calibration device and method thereof Download PDFInfo
- Publication number
- CN104101497A CN104101497A CN201410318538.7A CN201410318538A CN104101497A CN 104101497 A CN104101497 A CN 104101497A CN 201410318538 A CN201410318538 A CN 201410318538A CN 104101497 A CN104101497 A CN 104101497A
- Authority
- CN
- China
- Prior art keywords
- spindle box
- main spindle
- servomotor
- variator
- high precision
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The utility model relates to a center distance-servo adjusting transmission driving calibration device and a method thereof. The device comprises a radial two-degree-of-freedom adjustment mechanism which is slidingly arranged on an axial feed mechanism and is provided with a main shaft mechanism; the radial two-degree-of-freedom adjustment mechanism includes a two-dimensional movable rack, driving modules and precise screw and nut mechanisms; the main shaft mechanism is movably arranged on the two-dimensional movable rack, and one end of the main shaft mechanism is connected with a driving motor; two sets of driving modules and the precise screw and nut mechanisms are correspondingly arranged at the X-axis direction and the Z-axis direction of the two-dimensional movable rack respectively; and the two-dimensional movable rack is slidingly connected with the axial feed mechanism through a linear guide rail in the Y-axis direction. According to the center distance-servo adjusting transmission driving calibration device and the method thereof of the utility model, high-precision adjustment of a center distance can be adjusted through a servo mechanism; the input shafts of various kinds of transmissions with different center distances are adopted as a common axis, and an output shaft driving device is designed to be adjustable, and therefore, besides, an original axial feed function, a radial two-degree-of-freedom high-precision adjustment function can be further realized, and the center distance-servo adjusting transmission driving calibration device and the method thereof can satisfy requirements of center distance variation.
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 distance gearbox drive calibrating device and method of calibration thereof.
Background technology
Mostly now widely used loading checking table is the transmission design for a certain specific model, and wherein the relative position of the drive unit of drive speed transmission input shaft and output shaft is changeless (determining according to transmission input shaft and output shaft axle center spacing).As need the variator of the different centre distance of verification, and must redesign and manufacture the checking table matching with its centre distance, plant factor is lower, and the cost that has increased variator manufacturing enterprise drops into.By design high-precision servo, adjust the drive unit of centre distance, the variator of multiple different centre distance be take to input shaft as public axle center, it is adjustable (except former axial feed that output shaft drive assembly design becomes, increase radially two degrees of freedom high precision regulatory function), make the variator of multiple different centre distance can verification on same checking table, adopt Siemens 1FK series synchronous servo motor, Siemens SINAMICS S120 drive system, control system be Siemens S7 ?300 series of PLC, by the direct input position numerical value of the picture on industrial computer or touch-screen, then by PLC control-driven system, drive servomotor to arrive target location, adjustment completes, thereby saved substantial contribution input, also make lathe there is larger compatibility simultaneously, flexibility degree improves greatly.
Through the retrieval of prior art is found, Chinese patent literature CN101915669A open (bulletin) day 2010.12.15, the center distance-variable gearbox drive calibrating in a kind of Machining Technology field is disclosed, comprise: mainshaft mechanism, gear train and two degrees of freedom base, wherein: mainshaft mechanism and gear train are rotationally connected, mainshaft mechanism is fixedly installed on two degrees of freedom 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, a kind of servo tune centre distance gearbox drive calibrating device and method of calibration thereof are proposed, the high precision that centre distance is realized by servo control mechanism in innovation ground is adjusted, and the variator of multiple different centre distance can be take to input shaft as public axle center, output shaft drive assembly design becomes adjustable, except former axial feed, increase radially two degrees of freedom high precision regulatory function, make it meet the requirement that becomes centre distance.
The present invention is achieved by the following technical solutions:
The present invention relates to a kind of servo tune centre distance gearbox drive calibrating device, comprise: 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, wherein: mainshaft mechanism is movably set in two-dimensional active frame and one end is connected with drive motor, 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.
Described mainshaft mechanism comprises: main spindle box and universal coupling, wherein: main spindle box is arranged in the two-dimensional active frame of two degrees of freedom governor motion radially, and the two ends of universal coupling are connected with drive motor 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 and slide unit support are slidably connected by X-axis line slideway group, mainshaft mechanism and slide unit support are slidably connected by Z axis line slideway group, and base and axial feed mechanism are slidably connected.
Described axial feed mechanism is provided with driver module and the accurate lead screw nut body being connected with line slideway in Y direction.
Described driver module adopts servomotor, hydraulic cylinder or pneumatic cylinder to realize.
Described accurate lead screw nut body is comprised of high precision ball screw mandrel and feed screw nut's seat, and wherein: the two ends of high precision ball screw mandrel are connected with feed screw nut's seat with the output terminal of driver module respectively, feed screw nut's seat is fixedly connected with main spindle box or slide unit support.
When described driver module adopts servomotor, the output shaft of this servomotor is connected with high precision ball screw mandrel by shaft coupling.
In described axial feed mechanism and described two-dimensional active frame, be preferably provided with limited block, by limited block, realize the restriction of displacement range.
Described slide unit support is provided with main spindle box balanced controls, these main spindle box balanced controls comprise: compact cylinder and compensating cylinder installing plate, wherein: compensating cylinder installing plate is arranged in two-dimensional active frame, compact cylinder is arranged on compensating cylinder installing plate, and compact cylinder is by being connected with main spindle box from centering web member.
The method of calibration that the present invention relates to said apparatus, comprises the following steps:
1) fixed transmission input shaft axial location is constant, on the basis not being subjected to displacement, by regulating the servomotor in Y direction to move main spindle box, makes output shaft and input shaft horizontal range reach X at drive motor main shaft
0, and being set to horizontal zero, horizontal zero remains on the centre position of drive motor 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 input shaft vertical range reach Y
0, and being set to vertical zero-bit, vertical zero-bit remains on the centre position of drive motor high precision ball screw mandrel so that the maximization of up-down adjustment scope as far as possible; And by (X
0, Y
0) position be recorded as initial original position;
3) when needing verification variator A, by the horizontal range X of the input shaft of variator A and output shaft
1with initial original position horizontal range X
0subtract each other, i.e. X
1?X
0=Δ X
1, by its corresponding high precision ball leading screw of the driven by servomotor in X-direction, move in the horizontal direction distance, delta X
1to X
1and store in PLC; And use limited block spacing in adjustable displacement place of maximum.
4) by the vertical range Y of the input shaft of variator A and output shaft
1with initial original position horizontal range Y
0subtract each other, i.e. Y
1?Y
0=Δ Y
1, by the driven by servomotor in Y-axis its corresponding high precision ball leading screw, in the vertical direction displacement Δ Y
1to Y
1and storage, finally preserve displacement deviator (X
1, Y
1) and record the mapping relations of itself and variator A.
When verification different model variator, its displacement deviator of corresponding stored (X
2, Y
2), can in the range of adjustment that radially two degrees of freedom governor motion allows, regulate the variator that any centre distance is different.
Technique effect
Compared with prior art, the present invention has used universal coupling and line slideway, make full use of the feature that universal coupling has larger angular compensatory ability, realized (being after main spindle box vertically moves under screw mandrel drives) in main spindle box axle center and drive motor axle center out-of-alignment situation, driving power can normal transmission.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: a is stereographic map; B is front elevation; 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.
Embodiment
Below embodiments of the invention are elaborated, the present embodiment is implemented take technical solution of the present invention under 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 is connected with two degrees of freedom governor motion radially.
Described mainshaft mechanism comprises: main spindle box 1 and universal coupling 2.Main spindle box 1 is fixedly installed on radially on two degrees of freedom governor motion; Universal coupling 2 one end are connected with main spindle box 1, and the other end is connected with drive motor.
Described radially two degrees of freedom governor motion comprises: base 28, slide unit support 5, horizontal linear guide rail 29, vertical line 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 main spindle box balanced controls 6.
Described universal coupling 2 is passed to main spindle box 1 by rotary motive power.
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, line slideway 27 is installed, radially two degrees of freedom governor motion is installed on the slide block of line slideway 27.Servomotor 21 and ball screw (NSK) are installed respectively on servomotor seat 23 both sides in addition, both are connected by shaft coupling, on ball screw (NSK) nut, feed screw nut's seat 20 is housed, by feed screw nut's seat 20, be connected with two degrees of freedom governor motion base 28 radially, form axial feed mechanism, and mounting limit piece 24 limits feed range on base.
As shown in Figure 2, the high precision that this device is realized centre distance by servo control mechanism is adjusted.Servomotor 30 and support unit 33 and high precision ball screw mandrel 34 are installed respectively on servomotor seat 31 both sides, both are connected by shaft coupling 32, feed screw nut's seat 35 is housed on ball screw nut 36, feed screw nut's seat 35 is connected with two degrees of freedom governor motion radially again, and centre is furnished with the backing plate 37 of adjustment and eliminates gap.Feed screw nut's seat 35 belows are equipped with and are stopped nut 39, at its linear movement direction, and two ends mounting limit piece 40.Limited block 40 is equipped with and stops nut 39 and adjust packing ring 38, and setting maximum displacement is that 40 two of limited blocks stop 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 input shaft axial location is constant for this device, by regulating servomotor 21 to make output shaft and input shaft horizontal range reach X, and is set to horizontal zero; Regulate again servomotor 8 to make output shaft and input shaft vertical range reach 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 verification variator A, the horizontal range X1 of the input shaft of variator A and output shaft and initial original position horizontal range X are subtracted each other, be X1 ?X=Δ X1, by servomotor 21, drive high precision ball leading screws, move in the horizontal direction distance, delta X1 to X1 storage; The vertical range Y1 of the input shaft of variator A and output shaft and initial original position horizontal range Y are subtracted each other simultaneously, be Y1 ?Y=Δ Y1, by servomotor 8, drive high precision ball leading screw, displacement Δ Y1 to Y1 storage in the vertical direction, finally at PLC computer program storage (X1, Y1) new coordinate points variator A is special-purpose, conveniently calls from now on.In the time of should needing verification variator B together, the new coordinate points variator B that can store (X2, Y2) is special-purpose; By that analogy, in the range of adjustment that radially two degrees of freedom governor motion allows, can regulate the variator that any centre distance is different.
This device makes full use of the feature that universal coupling has larger angular compensatory ability, has realized in main spindle box 1 axle center and drive motor axle center out-of-alignment situation (be main spindle box 1 occur radially two degrees of freedom moves after), drives 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 2 intermediate shafts deflect, now rolling the relative drive motor of main spindle box 1 has moved axially a section and has moved, the universal joint 41,42 at universal coupling 2 two ends, the left and right keeping parallelism that is still connected with main spindle box 1 with drive motor respectively, mounting means during now universal coupling 2 work is Z-type, and the rotating speed of drive motor is passed to main spindle box 1 without loss.The cross steering angle of universal coupling 2 can reach 20 °, has realized object of the present invention, and when the different variator of verification input and output shaft distance of shaft centers, output shaft drive unit radially two degrees of freedom moves, and drives power can can't harm normal transmission.
Claims (8)
1. a servo tune centre distance gearbox drive calibrating device, it is characterized in that, comprise: 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, wherein: mainshaft mechanism is movably set in two-dimensional active frame and one end is connected with drive motor, 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,
Described mainshaft mechanism comprises: main spindle box and universal coupling, wherein: main spindle box is arranged in the two-dimensional active frame of two degrees of freedom governor motion radially, and the two ends of universal coupling are connected with drive motor 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 and slide unit support are slidably connected by X-axis line slideway group, mainshaft mechanism and slide unit support are slidably connected by Z axis line slideway group, and base and axial feed mechanism are slidably connected.
2. servo tune centre distance gearbox drive calibrating device according to claim 1, is characterized in that, described axial feed mechanism is provided with driver module and the accurate lead screw nut body being connected with line slideway in Y direction.
3. servo tune centre distance gearbox drive calibrating device according to claim 1, is characterized in that, described driver module adopts servomotor, hydraulic cylinder or pneumatic cylinder to realize.
4. servo tune centre distance gearbox drive calibrating device according to claim 1 and 2, it is characterized in that, described accurate lead screw nut body is comprised of high precision ball screw mandrel and feed screw nut's seat, wherein: the two ends of high precision ball screw mandrel are connected with feed screw nut's seat with the output terminal of driver module respectively, feed screw nut's seat is fixedly connected with main spindle box or slide unit support.
5. servo tune centre distance gearbox drive calibrating device according to claim 3, is characterized in that, when described driver module adopts servomotor, the output shaft of this servomotor is connected with high precision ball screw mandrel by shaft coupling.
6. servo tune centre distance gearbox drive calibrating device according to claim 1, is characterized in that, described axial feed mechanism and described two-dimensional active frame are provided with limited block, realize the restriction of displacement range by limited block.
7. servo tune centre distance gearbox drive calibrating device according to claim 1, it is characterized in that, described slide unit support is provided with main spindle box balanced controls, these main spindle box balanced controls comprise: compact cylinder and compensating cylinder installing plate, wherein: compensating cylinder installing plate is arranged in two-dimensional active frame, compact cylinder is arranged on compensating cylinder installing plate, and compact cylinder is by being connected with main spindle box from centering web member.
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 input shaft axial location is constant, on the basis not being subjected to displacement, by regulating the servomotor in Y direction to move main spindle box, makes output shaft and input shaft horizontal range reach X at drive motor main shaft
0, and being set to horizontal zero, horizontal zero remains on the centre position of drive motor 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 input shaft vertical range reach Y
0, and being set to vertical zero-bit, vertical zero-bit remains on the centre position of drive motor high precision ball screw mandrel so that the maximization of up-down adjustment scope as far as possible; And by (X
0, Y
0) position be recorded as initial original position;
3) when needing verification variator A, by the horizontal range X of the input shaft of variator A and output shaft
1with initial original position horizontal range X
0subtract each other, i.e. X
1?X
0=Δ X
1, by its corresponding high precision ball leading screw of the driven by servomotor in X-direction, move in the horizontal direction distance, delta X
1to X
1and store in PLC; And use limited block spacing in adjustable displacement place of maximum;
4) by the vertical range Y of the input shaft of variator A and output shaft
1with initial original position horizontal range Y
0subtract each other, i.e. Y
1?Y
0=Δ Y
1, by the driven by servomotor in Y-axis its corresponding high precision ball leading screw, in the vertical direction displacement Δ Y
1to Y
1and storage, finally preserve displacement deviator (X
1, Y
1) and record the mapping relations of itself and variator A;
When verification different model variator, its displacement deviator of corresponding stored (X
2, Y
2), can in the range of adjustment that radially two degrees of freedom governor motion allows, regulate the variator that any centre distance is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410318538.7A CN104101497B (en) | 2014-07-04 | 2014-07-04 | Servo tune centre-to-centre spacing gearbox drive calibrating device and method of calibration thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410318538.7A CN104101497B (en) | 2014-07-04 | 2014-07-04 | Servo tune centre-to-centre spacing gearbox drive calibrating device and method of calibration thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104101497A true CN104101497A (en) | 2014-10-15 |
| CN104101497B CN104101497B (en) | 2016-05-25 |
Family
ID=51669828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410318538.7A Active CN104101497B (en) | 2014-07-04 | 2014-07-04 | Servo tune centre-to-centre spacing gearbox drive calibrating device and method of calibration thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104101497B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299400A (en) * | 2015-10-22 | 2016-02-03 | 青岛海信移动通信技术股份有限公司 | Adjustable base of projection equipment and projection equipment |
| CN111307434A (en) * | 2020-03-07 | 2020-06-19 | 倪俊极 | Batch detection testing machine and detection method for servo motor after production and assembly |
| CN113418698A (en) * | 2021-06-07 | 2021-09-21 | 迅蓝智能科技(洛阳)有限公司 | Centering debugging method for transmission system of transmission |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4328537C2 (en) * | 1993-08-25 | 2000-03-30 | Univ Stuttgart | Transmission test bench and method for testing a transmission |
| CN2553359Y (en) * | 2002-06-10 | 2003-05-28 | 广州英邦名车电子自动变速箱有限公司 | Automatic speed changing box dynamic analog detector |
| EP1605191A2 (en) * | 2002-04-10 | 2005-12-14 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Method of establishing the speed of a machine part, detecting the slipping of a continuously variable transmission, and controlling such a transmission as well as a continuously variable transmission of the type with a belt |
| CN1721833A (en) * | 2004-07-12 | 2006-01-18 | 天津市天派工业自动化技术有限公司 | Automobile gear box loading check test bench |
| CN201376245Y (en) * | 2009-04-30 | 2010-01-06 | 上海莱克气割机有限公司 | Center-distance adjustable roller frame device |
| CN101915669A (en) * | 2010-09-10 | 2010-12-15 | 上海汽车变速器有限公司 | Center distance-variable gearbox drive calibrating device |
-
2014
- 2014-07-04 CN CN201410318538.7A patent/CN104101497B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4328537C2 (en) * | 1993-08-25 | 2000-03-30 | Univ Stuttgart | Transmission test bench and method for testing a transmission |
| EP1605191A2 (en) * | 2002-04-10 | 2005-12-14 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Method of establishing the speed of a machine part, detecting the slipping of a continuously variable transmission, and controlling such a transmission as well as a continuously variable transmission of the type with a belt |
| CN2553359Y (en) * | 2002-06-10 | 2003-05-28 | 广州英邦名车电子自动变速箱有限公司 | Automatic speed changing box dynamic analog detector |
| CN1721833A (en) * | 2004-07-12 | 2006-01-18 | 天津市天派工业自动化技术有限公司 | Automobile gear box loading check test bench |
| CN201376245Y (en) * | 2009-04-30 | 2010-01-06 | 上海莱克气割机有限公司 | Center-distance adjustable roller frame device |
| CN101915669A (en) * | 2010-09-10 | 2010-12-15 | 上海汽车变速器有限公司 | Center distance-variable gearbox drive calibrating device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299400A (en) * | 2015-10-22 | 2016-02-03 | 青岛海信移动通信技术股份有限公司 | Adjustable base of projection equipment and projection equipment |
| CN111307434A (en) * | 2020-03-07 | 2020-06-19 | 倪俊极 | Batch detection testing machine and detection method for servo motor after production and assembly |
| 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 |
| CN113418698A (en) * | 2021-06-07 | 2021-09-21 | 迅蓝智能科技(洛阳)有限公司 | Centering debugging method for transmission system of transmission |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104101497B (en) | 2016-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203875884U (en) | Five-axis manipulator | |
| CN103170845B (en) | Accuracy compensation method of coaxial macro-micro composite linear motion platform device | |
| CN100468248C (en) | Binocular active vision monitor suitable for precision machining | |
| CN102649232B (en) | Linear motion platform | |
| US11047668B2 (en) | Wheel space detecting device | |
| CN105729305A (en) | Force position coupling micro-motion precise polishing device and online force detection and control method | |
| CN105729141A (en) | Precise linear two-dimensional double-drive workbench based on control of open numerical-control system | |
| CN102768028A (en) | Method and device for online in-situ measurement with single joint arm | |
| CN203460598U (en) | Novel efficient precision engraving machine | |
| CN206732212U (en) | A kind of wide numerical control plane milling machine of precision high-adaptability | |
| CN104942190A (en) | Numerical control roll machine | |
| CN207037447U (en) | The Digit Control Machine Tool of error compensation can be carried out | |
| CN104101497A (en) | Center distance-servo adjusting transmission driving calibration device and method thereof | |
| CN103252689A (en) | High-precision numerical control internal grinding machine tool | |
| CN103464837A (en) | Numerical-control thread grinding machine | |
| CN102757186B (en) | High-precision five-axis ion beam machining device with high dynamic performance and control method thereof | |
| CN104551718A (en) | Five-dimensional fine-tuning mechanism | |
| CN202057488U (en) | High-speed ball screw performance test bed capable of replace screw | |
| CN203965150U (en) | Servo tune centre distance gearbox drive calibrating device | |
| CN101762386A (en) | Combined large-size bevel gear rolling inspection machine | |
| CN202951908U (en) | Six-station milling machine | |
| CN203449103U (en) | Full-automatic numerical control external cylindrical grinding machine | |
| CN101870013A (en) | Numerical control facing head system capable of realizing respective radial feed of multiple cutters | |
| CN203448798U (en) | Numerical control screw grinder | |
| CN103769997A (en) | Rectangular array synchronous swing mechanism and multi-shaft linkage processing lathe based on same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |