CN108098456B - On-line detection small-stroke driving device - Google Patents
On-line detection small-stroke driving device Download PDFInfo
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- CN108098456B CN108098456B CN201810113056.6A CN201810113056A CN108098456B CN 108098456 B CN108098456 B CN 108098456B CN 201810113056 A CN201810113056 A CN 201810113056A CN 108098456 B CN108098456 B CN 108098456B
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- measuring device
- driving device
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- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 238000003754 machining Methods 0.000 claims abstract description 11
- 239000007858 starting material Substances 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 230000000670 limiting effect Effects 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses an on-line detection small-stroke driving device, which belongs to the field of on-line detection and comprises a sliding seat, a fixed seat and a stroke switch, wherein the sliding seat, the fixed seat and the stroke switch are arranged on an installation seat, a measuring device is arranged on the sliding seat, the sliding seat can do reciprocating linear motion on the installation seat along the feeding direction of the measuring device, a piston is arranged on the fixed seat, and the sliding seat is also provided with a containing cavity matched with the piston, a switch starter matched with the stroke switch, and a rear oil port and a front oil port which are respectively communicated with the containing cavity at two sides of the piston. The driving device is used for clamping the measuring device on the turbine machining machine tool and realizing small-stroke feeding of the measuring device so as to detect worm gear pitch errors and total accumulated pitch errors of the machining machine tool, and has the effect of improving repeated positioning accuracy of the measuring device and further improving measuring accuracy.
Description
Technical Field
The invention belongs to the technical field of online detection, and particularly relates to an online detection small-stroke driving device which is used for online detection of worm gear pitch errors and total accumulated pitch errors when a turbine is processed by a turbine processing machine tool.
Background
The turbine is a rotary power machine for converting the energy of flowing working media into mechanical energy, and is widely applied to the fields of aeroengines, gas turbines, steam turbines and the like. The turbine processing machine tool is used for turbine processing, besides various worm gears can be processed, the turbine is required to be detected in the turbine processing process in terms of finishing pitch error fpt, total pitch accumulated error Fp and the like, and according to detection results, the movements of each shaft of the worm gear processing machine tool can be compensated through a numerical control system in a targeted mode, so that errors are eliminated, and the processing precision of the worm gears is improved. Therefore, in order to help to improve the machining accuracy and efficiency of the turbine machining machine tool, it is very necessary to conduct research on how to realize online detection of turbine machining.
Disclosure of Invention
In view of the above, the present invention aims to provide an on-line detection small-stroke driving device, which can realize small-stroke feeding of a measuring device to assist in completing on-line detection of a turbine without requiring X-axis motion of a turbine processing machine tool, and can solve the problem of repeated positioning of the measuring device.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The invention provides an on-line detection small-stroke driving device which is used for clamping a measuring device on a turbine machining machine tool and realizing small-stroke feeding of the measuring device.
Further, the travel switch is a reset switch and a working position switch, and the reset switch and the working position switch are sequentially arranged on the inner side of the mounting seat above the sliding seat at intervals along the feeding direction of the measuring device.
Further, the switch starter is a bump or an inductive switch, and the bump or the inductive switch is correspondingly combined with and disconnected from the reset switch and the control switch in the working position switch through contact or induction so as to control the stroke terminal in the reset and working positions.
Further, the device also comprises a transition joint disc, the measuring device is arranged on the transition joint disc, and the transition joint disc is arranged on the sliding seat.
Further, the transition tray comprises a protective cover, and the protective cover is arranged on the transition tray.
Further, a linear guide rail is fixedly connected to the mounting seat, a guide rail sliding block which is in sliding fit with the linear guide rail is arranged at the bottom of the sliding seat, and the linear guide rail is of a double-track structure and is in a T shape or a dovetail shape.
Further, the device also comprises a limiting mechanism, wherein the limiting mechanism consists of a positioning screw, a nut and a positioning seat, the positioning seat is arranged at the bottom of the installation seat, and the positioning screw penetrates through the positioning seat and is locked with the positioning seat through the nut.
Further, the rotary sealing device further comprises a rear cover plate and a front cover plate which are arranged on the sliding seat and positioned at two ends of the accommodating cavity, a sealing ring is arranged between the sliding seat and the rear cover plate as well as between the sliding seat and the front cover plate, the sealing ring is an O-shaped sealing ring, and a rotary sealing gasket is arranged between the rod part of the piston and the rear cover plate.
Further, the device also comprises at least two transverse supporting structures arranged on the mounting seat through the first supporting blocks and at least two longitudinal supporting structures arranged on the sliding seat through the second supporting blocks, wherein the supporting directions of the transverse supporting structures are horizontally and vertically intersected with the moving direction of the sliding seat, the supporting directions of the longitudinal supporting structures are vertically and vertically intersected with the moving direction of the sliding seat, and the transverse supporting structures and the longitudinal supporting structures are both composed of springs and steel balls.
The beneficial effects of the invention are as follows: the driving device is used for clamping the measuring device on the turbine machining machine tool and realizing small-stroke feeding of the measuring device so as to detect worm gear pitch errors and total accumulated pitch errors of the machining machine tool, and has the effect of improving repeated positioning accuracy of the measuring device and further improving measuring accuracy.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic plan view of the structure of the on-line detection small-stroke driving device of the present invention;
FIG. 2 is a schematic view of the P-direction of FIG. 1;
Fig. 3 is a schematic diagram of the on-line detection small-stroke driving device of the invention, which is installed on a turbine processing machine after clamping a measuring device.
Detailed Description
The invention is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present patent, and it is possible for those of ordinary skill in the art to understand the specific meaning of the above terms according to the specific circumstances.
Referring to fig. 1,2 and 3, reference numerals in the drawings indicate: driving device 100, measuring device 200, large column sled 300, worm gear 400; the transition disc 1, a positioning screw 2, a nut 3, a positioning seat 4, a rear supporting block 5, a spring 6, a steel ball 7, a mounting seat 8, a sliding seat 9, a containing cavity 10, a fixing seat 11, a piston 12, a rotary sealing gasket 13, a rear cover plate 14, a sealing ring 15, a linear guide rail 16, a guide rail sliding block 17, a switch starter 18, a rear oil port 19, a reset switch 20, a working position switch 21, a front oil port 22, a protective cover 23, a front cover plate 24 and a front supporting block 25.
The embodiments are substantially as shown in the accompanying drawings: the on-line detection small-stroke driving device provided by the embodiment is used for clamping a measuring device 200 on a turbine processing machine tool and realizing small-stroke feeding of the measuring device, and comprises a sliding seat 9, a fixed seat 11 and a stroke switch which are arranged on an installation seat 8, wherein the installation seat 8 is arranged on a large column sliding plate 300 of the turbine processing machine tool, the measuring device 200 is arranged on the sliding seat 9 through a transition disc 1, the sliding seat 9 can do reciprocating linear motion on the installation seat 8 along the feeding direction of the measuring device 200, a piston 12 is fixedly arranged on the fixed seat 11, an accommodating cavity 10 matched with the piston 12, a switch starter 18 matched with the stroke switch, and a rear oil port 19 and a front oil port 22 which are respectively communicated with the two sides of the piston 12 are also arranged on the sliding seat 9; the travel switch is a reset switch 20 and a working position switch 21, and the reset switch 20 and the working position switch 21 are sequentially arranged at intervals on the inner side of the mounting seat 8 above the sliding seat 9 along the feeding direction of the measuring device 200; the switch starter 18 adopts a collision block which is correspondingly combined with and disconnected from control switches in the reset switch 20 and the working position switch 21 through contact so as to control the stroke terminal in the reset and working positions; the mounting seat 8 is fixedly connected with a linear guide rail 16, the bottom of the sliding seat 9 is provided with a guide rail sliding block 17 which is in sliding fit with the linear guide rail 16, and the linear guide rail 16 adopts a double-track structure and is in a T shape or a dovetail shape; the driving device 100 further comprises a limiting mechanism for realizing hard limiting effect, and consists of a positioning screw 2, a nut 3 and a positioning seat 4, wherein the positioning seat 4 is arranged at the bottom of the mounting seat 8, and the positioning screw 2 is penetrated on the positioning seat 4 and is locked with the positioning seat 4 through the nut 3; a rear cover plate 14 and a front cover plate 24 are arranged on the sliding seat 9 and positioned at two ends of the accommodating cavity 10, a sealing ring 15 is arranged between the sliding seat 9 and the rear cover plate 14 and between the sliding seat 9 and the front cover plate 24, the sealing ring 15 adopts an O-shaped sealing ring, and a rotary sealing gasket 13 is arranged between the rod part of the piston 12 and the rear cover plate 14; the driving device 100 further comprises at least two transverse supporting structures arranged on the mounting seat 8 through the first supporting blocks 5 and at least two longitudinal supporting structures arranged on the sliding seat 9 through the second supporting blocks 25, wherein the supporting direction of the transverse supporting structures is horizontally and vertically intersected with the moving direction of the sliding seat 9, the supporting direction of the longitudinal supporting structures is vertically and vertically intersected with the moving direction of the sliding seat 9, and the transverse supporting structures and the longitudinal supporting structures are both composed of the springs 6 and the steel balls 7.
Specifically, the mounting seat 8 is fixed, the measuring device 200 is mounted and fixed on the transition joint disc 1, the transition joint disc is fixed on the sliding seat 9 through screws, the piston 12 is locked on the fixed seat 11 through two screw nuts, the piston is mounted in the accommodating cavity 10 of the sliding seat, and two ends of the piston are sealed and fixed through the rear cover plate 14, the front cover plate 24, the rotary sealing ring 13, the O-shaped sealing ring 15 and the like; the linear guide rail 16 and the guide rail sliding block 17 are arranged on the mounting seat, and the sliding seat is arranged on the guide rail sliding block; the motion process of the on-line detection small-stroke driving device is as follows: when the rear oil port 19 is used for oil feeding and the front oil port 22 is used for oil returning, the sliding seat is driven to move towards the positive direction of X, the switch starter 18 arranged and fixed on the sliding seat is separated from the reset switch 20 and is contacted with the working position switch 21 after reaching a designated position, meanwhile, a hard limit is also arranged, namely, a positioning seat 4 and a positioning screw 2 are arranged, the positioning screw is arranged on the positioning seat and locked through a nut 3, the positioning seat is fixed on the mounting seat through the screw, and when the sliding seat reaches the designated position, the positioning screw is contacted with the sliding seat through adjusting the position of the positioning screw, so that the sliding seat can not move continuously; after the carriage is in place, the measurement device 200 performs a measurement action. Simultaneously, in order to eliminate the clearance of the sliding seat in the Y direction when moving in the X direction, two springs 6 and steel balls 7 are arranged on the first supporting block 5, the first supporting block is fixed on the mounting seat through screws, when the sliding seat is in a return stroke, the steel balls are in the groove, when the sliding seat is in a forward preparation for measuring action, the steel balls leave the groove on a plane, a Y-direction force is applied to the sliding seat, the clearance in the Y direction is eliminated, the moving precision of the sliding seat is ensured, meanwhile, in the Z direction of the moving of the sliding seat, two springs 6 and steel balls 7 are also arranged on the second supporting block 25, the second supporting block is fixed on the sliding seat through screws, the springs 6 and the steel balls 7 apply a force to the downward direction of the sliding seat Z, so that the sliding seat always clings to one side when moving, the clearance in the Z direction is eliminated, the moving precision of the measuring device when in the X direction is in a reciprocating mode is ensured, and the measuring precision is ensured. If the slide carriage moves reversely, the front oil port 22 is used for oil feeding, the rear oil port 19 is used for oil returning, and the slide carriage moves towards the X-axis negative direction, namely the measuring device 200 executes retreating movement, and when the switch starter is separated from the working position switch 21 and contacts the reset switch 20, the slide carriage retreats to the proper position.
By adopting the scheme, the on-line detection small-stroke driving device 100 is arranged on the large column slide 300 of the machine tool, the worm wheel 400 to be processed does not need to be disassembled (but needs to stop processing) on the machine tool when the measuring device 200 is used for measuring, the worm wheel to be measured does indexing motion around the rotation center of the worm wheel, meanwhile, worm wheel corner signals are picked up, the measuring device is driven by the oil cylinder to complete motion, the motion clearance is eliminated, the numerical control system completes data acquisition while the telescopic motion is carried out along with the rotation of the worm wheel, and the detection of items such as worm wheels fpt and Fp is automatically completed. The required adjustment movement and precision of the probe during the detection process still makes use of the required movement in the worm gear machining tool and the precision of the tool. When the machine tool is adjusted to a required position, in order to improve the accuracy of the reciprocating motion of the measuring device, the X-axis motion of the machine tool is not needed, and a small stroke feed is designed in the driving device, so that the repeated positioning accuracy of the measuring device is improved, and the measuring accuracy is improved.
The switch actuator 18 in another embodiment employs a sense switch that is inductively coupled to and decoupled from control switches in the reset switch 20 and the work position switch 21, respectively, to control the end of travel in the reset and work positions.
The drive 100 in another embodiment also comprises a protective cover 23 mounted on the transition piece 1. The device is used for protecting the deviating end of the driving device 100, deviating from the measuring device 200, and preventing iron scraps from splashing into the driving device in the machining process of the turbine, so that the working accuracy of the driving device is influenced.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (6)
1. The on-line detection small-stroke driving device is characterized in that the driving device (100) is used for clamping a measuring device (200) on a turbine machining machine tool and realizing small-stroke feeding of the measuring device (200), and comprises a sliding seat (9), a fixed seat (11) and a travel switch, wherein the sliding seat (9) is arranged on an installation seat (8), the measuring device (200) can reciprocate on the installation seat (8) along the feeding direction of the measuring device (200), a piston (12) is arranged on the fixed seat (11), and a containing cavity (10) matched with the piston (12), a switch starter (18) matched with the travel switch and a rear oil port (19) and a front oil port (22) which are respectively communicated with the containing cavity (10) are also arranged on the sliding seat (9); wherein,
The travel switch is a reset switch (20) and a working position switch (21), and the reset switch (20) and the working position switch (21) are sequentially arranged at intervals on the inner side of a mounting seat (8) above the sliding seat (9) along the feeding direction of the measuring device (200);
the switch starter (18) is a collision block or an induction switch, and the collision block or the induction switch is correspondingly combined and disconnected with a control switch in the reset switch (20) and the working position switch (21) through contact or induction so as to control the stroke terminal in the reset and working positions;
The driving device (100) further comprises at least two transverse supporting structures arranged on the mounting seat (8) through the first supporting block (5) and at least two longitudinal supporting structures arranged on the sliding seat (9) through the second supporting block (25), the supporting direction of the transverse supporting structures is horizontally and vertically intersected with the moving direction of the sliding seat (9), the supporting direction of the longitudinal supporting structures is vertically and vertically intersected with the moving direction of the sliding seat (9), and the transverse supporting structures and the longitudinal supporting structures are both composed of springs (6) and steel balls (7).
2. The on-line small stroke detection driving device according to claim 1, further comprising a transition disc (1), wherein the measuring device (200) is mounted on the transition disc (1), and wherein the transition disc (1) is mounted on the slide (9).
3. The on-line small stroke driving device according to claim 2, further comprising a protective cover (23), wherein the protective cover (23) is mounted on the transition disc (1).
4. The on-line detection small-stroke driving device according to claim 1, wherein the mounting seat (8) is fixedly connected with a linear guide rail (16), a guide rail sliding block (17) which is in sliding fit with the linear guide rail (16) is arranged at the bottom of the sliding seat (9), and the linear guide rail (16) is of a double-track structure and adopts a T shape or a dovetail shape.
5. The on-line detection small-stroke driving device according to claim 1, further comprising a limiting mechanism, wherein the limiting mechanism consists of a positioning screw (2), a nut (3) and a positioning seat (4), the positioning seat (4) is arranged at the bottom of the mounting seat (8), and the positioning screw (2) is arranged on the positioning seat (4) in a penetrating manner and is locked with the mounting seat (8) through the nut (3).
6. The on-line detection small-stroke driving device according to claim 1, further comprising a rear cover plate (14) and a front cover plate (24) which are arranged on the sliding seat (9) and are positioned at two ends of the accommodating cavity (10), wherein a sealing ring (15) is arranged between the sliding seat (9) and the rear cover plate (14) and between the sliding seat (9) and the front cover plate (24), the sealing ring (15) is an O-shaped sealing ring, and a rotary sealing gasket (13) is arranged between the rod part of the piston (12) and the rear cover plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810113056.6A CN108098456B (en) | 2018-02-05 | 2018-02-05 | On-line detection small-stroke driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810113056.6A CN108098456B (en) | 2018-02-05 | 2018-02-05 | On-line detection small-stroke driving device |
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| Publication Number | Publication Date |
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| CN108098456A CN108098456A (en) | 2018-06-01 |
| CN108098456B true CN108098456B (en) | 2024-06-21 |
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| CN201810113056.6A Active CN108098456B (en) | 2018-02-05 | 2018-02-05 | On-line detection small-stroke driving device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208246420U (en) * | 2018-02-05 | 2018-12-18 | 重庆机床(集团)有限责任公司 | The small stroke driving device of on-line checking |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102006023292B4 (en) * | 2006-05-18 | 2008-02-21 | Carl Mahr Holding Gmbh | Measuring device for fast measurements |
| CN102773722A (en) * | 2012-06-30 | 2012-11-14 | 山东宏泰机械科技股份有限公司 | Machine tool guide rail sliding device |
| CN103418728A (en) * | 2013-09-05 | 2013-12-04 | 南京工业大学 | Upper die moving platform for large forging press |
| CN104526069B (en) * | 2014-12-25 | 2017-01-18 | 重庆机床(集团)有限责任公司 | Hobbing-chamfering-burring compound machine tool |
| CN105173684B (en) * | 2015-06-11 | 2017-10-31 | 北京第二机床厂有限公司 | Major diameter on-line measurement drive mechanism |
| CN105091826B (en) * | 2015-09-14 | 2017-08-25 | 安徽工程大学 | A kind of machine tool fluid pressure controlling thickness of guide rail oil membrane Detecting data |
| CN205033014U (en) * | 2015-09-28 | 2016-02-17 | 天津第一机床总厂 | Numerical control spiral bevel gear mills tooth machine on - line measuring device |
| CN107538273A (en) * | 2016-06-29 | 2018-01-05 | 长春设备工艺研究所 | Large-scale cylindrical member deviation from circular from and center of circle bounce, linearity online test method and its detection means |
| CN107639873B (en) * | 2017-10-24 | 2023-11-10 | 江西海源复合材料科技股份有限公司 | Press mobile platform system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208246420U (en) * | 2018-02-05 | 2018-12-18 | 重庆机床(集团)有限责任公司 | The small stroke driving device of on-line checking |
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