CN201897470U - Large gear measuring instrument - Google Patents

Large gear measuring instrument Download PDF

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Publication number
CN201897470U
CN201897470U CN2010206093562U CN201020609356U CN201897470U CN 201897470 U CN201897470 U CN 201897470U CN 2010206093562 U CN2010206093562 U CN 2010206093562U CN 201020609356 U CN201020609356 U CN 201020609356U CN 201897470 U CN201897470 U CN 201897470U
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CN
China
Prior art keywords
rotary table
worm
worm screw
gear
crack
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Expired - Lifetime
Application number
CN2010206093562U
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Chinese (zh)
Inventor
郭宝安
谢瑛
刘海燕
田沙
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Qinchuan Machinery Development Co Ltd Shaanxi Prov
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Qinchuan Machinery Development Co Ltd Shaanxi Prov
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Priority to CN2010206093562U priority Critical patent/CN201897470U/en
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Abstract

The utility model provides a large gear measuring instrument which is formed by combining a measuring device with a rotary worktable side by side, wherein the measuring device and the rotary worktable are mutually dependent; the measuring device is arranged at one side of the rotary worktable; the rotary worktable is assembled on a base of the rotary worktable in a center-fixed way by a liquid static pressure guideway supporting and a liquid static pressure bearing; and the rotary worktable is driven by a dual-worm clearance-elimination transmission mechanism arranged on the base of the rotary worktable. The large gear measuring instrument consists of three mutually independent parts: a three-coordinate measuring device, a liquid static pressure rotary worktable and a tail holder upright device; the liquid static pressure rotary worktable can bear large-mass load; a split structure can reduce the influence of the load mass on the measurement precision, therefore, the aim of precisely measuring gears with large mass and large inertia can be met.

Description

The large gear measuring instrument
Technical field
The utility model belongs to the gear measurement technical field, is specifically related to a kind of large gear measuring instrument.
Background technology
Along with raising large-scale and ultra-large type gear manufacture level, force gear measurement level and accuracy of detection also will improve thereupon, and existing gear measurement machine is difficult to satisfy the measurement level and the accuracy of detection of large-scale and ultra-large type gear, main cause is that the variable quantity of heavy load and load easily causes the distortion of the whole mechanism of surveying instrument on the one hand because large-scale and the load of ultra-large type gear is big; The 2nd, when rotary table moves in heavy load, be difficult to guarantee to have high precision and high sensitivity; The 3rd, the big inertia when large-mass workpiece rotates will influence the control system parameter generating.
The utility model content
The technical matters that the utility model solves: a kind of large gear measuring instrument is provided, is made up of separate three-dimensional coordinates measurement device, fluid pressure rotary table and tailstock stand column device three parts, the fluid pressure rotary table can carry big mass loading; Split-type structural can reduce the influence of load quality to measuring accuracy, thereby satisfies the purpose that big quality, big inertia gear are carried out precision measurement.
The technical solution adopted in the utility model: a kind of large gear measuring instrument, described gear measurement machine is combined side by side by separate measurement mechanism and rotary table, and measurement mechanism is positioned at a side of rotary table;
Described rotary table is assemblied on the rotary table base by hydrostatic slideway supporting and hydrodynamic journal liquid polymers centering;
Described rotary table drives by being installed in twin worm on the rotary table base crack gear train that disappears.
Described measurement mechanism is the three-dimensional coordinates measurement device.
Described gear measurement machine also comprises a tailstock stand column device independently, tailstock stand column device and measurement mechanism and rotary table are combined side by side, and the tailstock stand column device is positioned at the opposite side of rotary table.
The floor level of described rotary table is fixed on the rotary table base, be equipped with stationary. platen on the base plate, the endoporus of stationary. platen and up and down two end faces be equipped with the static pressure oil pocket, fit in the annular end face of rotary table top lower end and the upper surface of stationary. platen, the hydrostatic slideway that static pressure oil pocket by the stationary. platen upper surface forms supports rotary table top and workpiece, there is a centering cylinder that inserts the stationary. platen endoporus lower end of rotary table top, guarantees the rotating accuracy of rotary table top by the hydrodynamic journal liquid polymers of the formation of the static pressure oil pocket on the endoporus; Centering cylinder lower end at rotary table top is installed with pressing plate, fits in the upper surface of pressing plate and the lower surface of stationary. platen, and the pressure of static pressure oil pocket acts on the pressing plate, forms the enclosed hydrostatic slideway;
The described twin worm crack gear train that disappears is made up of duplex worm gear, final drive worm and disappear crack worm screw and servomotor, the duplex worm gear is fixed on the sidewall of rotary table top, the worm screw seat is fixed on the rotary table base, the housing of servomotor is installed on the worm screw seat, final drive worm, the crack worm screw that disappears are supported on the worm screw seat, and the crack worm screw that disappears is positioned at the final drive worm below; The synchromesh gear of installing on the gear of installing on the final drive worm and the crack worm screw that disappears is meshed; The output shaft of servomotor links by shaft coupling and final drive worm; The final drive worm and the crack worm screw that disappears are meshed with the duplex worm gear.
The center of described base plate is installed with the grating bearing, and the shell of circle grating is fixed on the grating bearing, and the rotation axle collar of circle grating is connected with circle grating connector, and circle grating connector is connected with rotary table top by web joint.
Described final drive worm is supported on the worm screw seat by angular contact ball bearing group 1, and the crack worm screw that disappears is supported on the worm screw seat by angular contact ball bearing group II; The described crack worm screw left end that disappears is set with nut, thrust bearing, butterfly spring seat successively and is positioned at the butterfly spring group of butterfly spring seat, and the butterfly spring seat is supported on the worm screw seat by guide finger.
Be coaxially installed with dead head on the described rotary table top, top II is installed on the dead head.
But the measurement base of described measurement mechanism is provided with by driven by servomotor, the straight-line pallet in the linear grating chi left and right sides, location; Described pallet be provided with by linear electric motors I drive, linear grating chi I location, can before and after straight-line supporting plate I; Be fixed with the measurement column on the described supporting plate I, measure the column front be provided with by linear electric motors II drive, linear grating chi II location, straight-line slide plate up and down; But described slide plate is provided with by linear electric motors III driving, the straight-line slide block in the linear grating chi III left and right sides, location, is equipped with gage beam on slide block, at the gage beam front end three-dimensional simulation measuring head is installed.
But the tailstock column base of described tailstock stand column device is provided with by dc speed-regulating motor and drives the supporting plate II that the left and right directions straight line moves, be fixed with the tailstock column on the supporting plate II, be provided with the tailstock that straight line up and down moves in the inboard of tailstock column, the top I that can stretch up and down is installed at the tailstock right-hand member.
Be integrated with air clamper on the slide block of described supporting plate I bottom surface, be integrated with air clamper on the slide block of described slide plate inner face.
Advantage that the utility model compared with prior art has and effect:
1, the utility model rotary table adopts hydrodynamic journal liquid polymers centering, the hydrostatic slideway supporting, can carry the gear workpiece of big quality, and rotary table base and the split of measurement base, the quality of large gear directly acts on basic foundation, can not cause the distortion of measuring base, reduce of the influence of the quality of large-scale tested gear, improve the measurement level and the accuracy of detection of gear wheel for the gauge head kinematic accuracy.
2, the utility model rotary table adopts the twin worm crack gear train that disappears to drive, improve stationarity, high precision and the high sensitivity of rotary table motion, big inertia when reducing the large-mass workpiece rotation satisfies the purpose that big quality, big inertia gear are carried out precision measurement to the influence of control system parameter generating.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model structure rear view;
Fig. 3 is the structural representation of the utility model rotary table;
Fig. 4 is the disappear structural representation of crack gear train of the utility model twin worm.
Embodiment
Below in conjunction with accompanying drawing 1,2,3,4 a kind of embodiment of the present utility model is described.
A kind of large gear measuring instrument is combined side by side by separate three-dimensional coordinates measurement device 36, rotary table 22 and tailstock stand column device 37, and three-dimensional coordinates measurement device 36, tailstock stand column device 37 are positioned at the both sides of rotary table 22.Rotary table 22 is assemblied on the rotary table base 7 by hydrostatic slideway supporting and hydrodynamic journal liquid polymers centering; Rotary table 22 drives by being installed in twin worm on the rotary table base 7 crack gear train that disappears.
The base plate 101 of rotary table 22 is horizontally fixed on the rotary table base 7, be equipped with stationary. platen 104 on the base plate 101, the endoporus 116 of stationary. platen 104 and up and down two end faces be equipped with static pressure oil pocket 117, fit in the annular end face of rotary table top 108 lower ends and the upper surface of stationary. platen 104, the hydrostatic slideway that static pressure oil pocket 117 by stationary. platen 104 upper surfaces forms supports rotary table top 108 and workpiece, there is a centering cylinder 118 that inserts stationary. platen 104 endoporus 116 lower end of rotary table top 108, guarantees the rotating accuracy of rotary table top 108 by the hydrodynamic journal liquid polymers of 117 formation of the static pressure oil pocket on the endoporus 116; Centering cylinder 118 lower ends at rotary table top 108 are installed with pressing plate 102, fit in the lower surface of the upper surface of pressing plate 102 and stationary. platen 104, and the pressure of static pressure oil pocket 117 acts on the pressing plate 102, form the enclosed hydrostatic slideway; The center of described base plate 101 is installed with grating bearing 103, the shell of circle grating 109 is fixed on the grating bearing 103, the rotation axle collar of circle grating 109 is connected with circle grating connector 110, and circle grating connector 110 is connected with rotary table top 108 by web joint 113.Position probing when circle grating 109 is used for the servo FEEDBACK CONTROL of rotary table top 108 and gear measurement.
Be coaxially installed with dead head 112 on the rotary table top 108, top II111 is installed on the dead head 112, be used for the measurement of shaft gear and the measurement than the dish-type gear of minor diameter of installing by means of mandrel; Bigger dish-type gear can be directly installed on the rotary table top 108.
The twin worm crack gear train that disappears is made up of duplex worm gear 105, final drive worm 107 and disappear crack worm screw 106 and servomotor 201.Duplex worm gear 105 is fixed on the sidewall of rotary table top 108, and worm screw seat 216 is fixed on the rotary table base 7, and the housing of servomotor 201 is installed on the worm screw seat 216 by Connection Block 203.Final drive worm 107 is supported on the worm screw seat 216 by angular contact ball bearing group I 204,208, and the crack worm screw 106 that disappears is supported on the worm screw seat 216 by angular contact ball bearing group II215,219, and the crack worm screw 106 that disappears is positioned at final drive worm 107 belows.The synchromesh gear 218 of installation is meshed on the gear of installing on the final drive worm 107 205 and the crack worm screw 106 that disappears, and the two transmission speed ratio is 1: 1, guarantees that two worm screws rotate synchronously.The output shaft of servomotor 201 links by shaft coupling 202 and final drive worm 107; Be meshed with duplex worm gear 105 driven rotary table top 108 of the final drive worm 107 and the crack worm screw 106 that disappears rotates.Described crack worm screw 106 left ends that disappear are set with nut 211, thrust bearing 212, butterfly spring seat 210 successively and are positioned at the butterfly spring group 213 of butterfly spring seat 210, and butterfly spring seat 210 is supported on the worm screw seat 216 by guide finger 214, butterfly spring seat 210 can only be moved along the axis direction of the crack worm screw 106 that disappears, butterfly spring group 213 applies an axial force for the crack worm screw 106 that disappears by butterfly spring seat 210, thrust bearing 212, nut 211, guarantees the crack transmission that disappears of two groups of worm gear pairs.
The measurement base 1 of three-dimensional coordinates measurement device 36 is provided with two line slideway I 5, the slide block of line slideway I 5 is connected with pallet 2, also be provided with a ball screw 4 between described two line slideway I 5, ball screw 4 one ends are connecting servomotor 6, the feed screw nut of the other end connects pallet 2, on measurement base 1 linear grating chi 3 is installed also, the read head of linear grating chi 3 is connected with pallet 2; Be equipped with two line slideway II30 on the described pallet 2, the slide block of line slideway II30 is connected with supporting plate I 11; The stator of linear electric motors I 31 is installed between two line slideway II30 on the pallet 2, and the mover of linear electric motors I 31 is connected with supporting plate I 11, drags supporting plate I 11 and moves along fore-and-aft direction; The air clamper that is integrated on line slideway II 30 slide blocks also is being installed on the supporting plate I 11, linear grating chi I 29 also has been installed on pallet 2, the read head of linear grating chi I 29 is connected with supporting plate I 11; Be equipped with on supporting plate I 11 and measure column 12, in measurement column 12 fronts two straight ball-guide I19 are set, the slide block of straight ball-guide I 19 connects slide plate 15; Measuring the stator that linear electric motors II 13 also has been installed on the column 12, the mover of linear electric motors II 13 is connected with slide plate 15, the air clamper that is integrated on straight ball-guide I 19 slide blocks also is being installed on the slide plate 15, on measurement column 12, linear grating chi II 35 has been installed also, the read head of linear grating chi II 35 is connected with slide plate 15, at the back side of measuring column 12 two straight ball-guide II 33 are set, the slide block of straight ball-guide II 33 connects balancing weight 32, by steel band 34 balancing weight 32 is connected with slide plate 15, guarantees weight balancing; Be equipped with slide block 18 on slide plate 15, slide block 18 can move along two straight ball-guide III16 left and right directions, directly drives slide block 18 motions by linear electric motors III14, is detected the position of slide block 18 by linear grating chi III17; On slide block 18, be equipped with gage beam 20, three-dimensional simulation measuring head 21 be installed at gage beam 20 front ends.
When servomotor 6 drives ball screw 4 rotations during measurement, the feed screw nut drags pallet 2 and moves along left and right directions, measure the adjustment of column 12 positions when being used to measure the different-diameter gear, when pallet 2 is adjusted to different measuring positions, linear grating chi 3 detects the actual exact position of pallet 2, so that gauge head 21 is accurately located.Linear electric motors I 31 drags supporting plate I 11 and moves along fore-and-aft direction, and this motion tangential motion during for prototype gear participates in tooth profile measurement; When the prototype gear helix, by air clamper supporting plate I 11 is clamped on the line slideway II 30 on the pallet 2, can improve the stability of column, and then improve the measuring accuracy of The Gear Helix; The detection data of linear grating chi I 29 on the pallet 2 are used for the closed-loop control of linear electric motors I 31, and these data also are used for the data processing that flank profil is measured simultaneously.Linear electric motors II 13 direct dragging skateboards 15 vertically move, axially-movable when this motion is prototype gear, participate in the measurement of The Gear Helix, when the prototype gear flank profil, by air clamper slide plate 15 is clamped on the straight ball-guide I 19 on the column 12, can improves the measuring accuracy of gear-profile; The detection data of linear grating chi II35 on the column 12 are used for the closed-loop control of linear electric motors II13, and these data also are used for the data processing that The Gear Helix is measured simultaneously.Linear electric motors III14 directly drives slide block 18 motions, by the position of linear grating chi III17 detection slide block 18, and the flexible and location of three-dimensional simulation measuring head 21 when this motion is used for prototype gear.
Be equipped with two line slideway III8 on the tailstock column base 9 of tailstock stand column device 37, the slide block of line slideway III8 is connected with supporting plate II23, on tailstock column base 9, trapezoidal screw 10 is installed also, one end of trapezoidal screw 10 is connecting dc speed-regulating motor 28, and the feed screw nut of the other end is connecting supporting plate II23; On supporting plate II23, assembling tailstock column 25, be equipped with two line slideway IV24 in the inboard of tailstock column 25, slide block on the line slideway IV24 is connected with tailstock 26, and tailstock 26 can be moved up and down along tailstock column 25, and the top I 27 that can stretch up and down is installed in tailstock 26 left sides.
When dc speed-regulating motor 28 drove screw mandrel 10 rotations, the feed screw nut dragged supporting plate II23 and moves along left and right directions.When measuring big specification gear, tailstock column 25 is positioned at the far-end of rotary table 22, and when the measurement axis gear, tailstock column 25 is positioned at the near-end of rotary table 22.Tailstock 26 can move in the vertical direction on the tailstock column, and to adapt to the requirement of different distance between centers, top I 27 can carry out a certain amount of flexible in tailstock, to keep certain pressure.

Claims (10)

1. large gear measuring instrument is characterized in that:
Described gear measurement machine is combined side by side by separate measurement mechanism (36) and rotary table (22), and measurement mechanism (36) is positioned at a side of rotary table (22);
Described rotary table (22) is assemblied on the rotary table base (7) by hydrostatic slideway supporting and hydrodynamic journal liquid polymers centering;
Described rotary table (22) drives by being installed in twin worm on the rotary table base (7) the crack gear train that disappears.
2. large gear measuring instrument according to claim 1 is characterized in that: described measurement mechanism (36) is the three-dimensional coordinates measurement device.
3. large gear measuring instrument according to claim 1, it is characterized in that: described gear measurement machine also comprises a tailstock stand column device (37) independently, tailstock stand column device (37) and measurement mechanism (36) and rotary table (22) are combined side by side, and tailstock stand column device (37) is positioned at the opposite side of rotary table (22).
4. according to claim 1,2 or 3 described large gear measuring instruments, it is characterized in that:
The base plate (101) of described rotary table (22) is horizontally fixed on the rotary table base (7), be equipped with stationary. platen (104) on the base plate (101), the endoporus (116) of stationary. platen (104) and up and down two end faces be equipped with static pressure oil pocket (117), fit in the annular end face of rotary table top (108) lower end and the upper surface of stationary. platen (104), the hydrostatic slideway that static pressure oil pocket (117) by stationary. platen (104) upper surface forms supports rotary table top (108) and workpiece, there is a centering cylinder (118) that inserts stationary. platen (104) endoporus (116) lower end of rotary table top (108), guarantees the rotating accuracy of rotary table tops (108) by the hydrodynamic journal liquid polymers of the formation of the static pressure oil pocket (117) on the endoporus (116); Centering cylinder (118) lower end at rotary table top (108) is installed with pressing plate (102), fits in the lower surface of the upper surface of pressing plate (102) and stationary. platen (104), and the pressure of static pressure oil pocket (117) acts on the pressing plate (102), forms the enclosed hydrostatic slideway;
The described twin worm crack gear train that disappears is made up of duplex worm gear (105), final drive worm (107) and disappear crack worm screw (106) and servomotor (201), duplex worm gear (105) is fixed on the sidewall of rotary table top (108), worm screw seat (216) is fixed on the rotary table base (7), the housing of servomotor (201) is installed on the worm screw seat (216), final drive worm (107), the crack worm screw (106) that disappears are supported on the worm screw seat (216), and the crack worm screw (106) that disappears is positioned at final drive worm (107) below; Final drive worm (107) is gone up the gear of installing (205) and is meshed with the synchromesh gear (218) that the crack worm screw (106) that disappears goes up installation; The output shaft of servomotor (201) links by shaft coupling (202) and final drive worm (107); The final drive worm (107) and the crack worm screw (106) that disappears are meshed with duplex worm gear (105).
5. large gear measuring instrument according to claim 4, it is characterized in that: the center of described base plate (101) is installed with grating bearing (103), the shell of circle grating (109) is fixed on the grating bearing (103), the rotation axle collar of circle grating (109) is connected with circle grating connector (110), and circle grating connector (110) is connected with rotary table top (108) by web joint (113).
6. large gear measuring instrument according to claim 4, it is characterized in that: described final drive worm (107) is supported on the worm screw seat (216) by angular contact ball bearing group I (204), (208), and the crack worm screw (106) that disappears is supported on the worm screw seat (216) by angular contact ball bearing group II (215), (219); Described crack worm screw (106) left end that disappears is set with nut (211), thrust bearing (212), butterfly spring seat (210) successively and is positioned at the butterfly spring group (213) of butterfly spring seat (210), and butterfly spring seat (210) is supported on the worm screw seat (216) by guide finger (214).
7. large gear measuring instrument according to claim 4 is characterized in that: be coaxially installed with dead head (112) on the described rotary table top (108), top II (111) is installed on the dead head (112).
8. large gear measuring instrument according to claim 4 is characterized in that: the measurement base (1) of described measurement mechanism (36) be provided with by servomotor (6) drive, linear grating chi (3) but the location straight-line pallet in the left and right sides (2); Described pallet (2) be provided with by linear electric motors I (31) drive, linear grating chi I (29) location, can before and after straight-line supporting plate I (11); Be fixed with on the described supporting plate I (11) and measure column (12), measure column (12) front be provided with by linear electric motors II (13) drive, linear grating chi II (35) location, straight-line slide plate (15) up and down; Described slide plate (15) be provided with by linear electric motors III (14) drive, linear grating chi III (17) but the location straight-line slide block in the left and right sides (18), on slide block (18), be equipped with gage beam (20), three-dimensional simulation measuring head (21) be installed at gage beam (20) front end.
9. large gear measuring instrument according to claim 3, it is characterized in that: the tailstock column base (9) of described tailstock stand column device (37) is provided with by dc speed-regulating motor (28) but drives the supporting plate II (23) that the left and right directions straight line moves, be fixed with tailstock column (25) on the supporting plate II (23), be provided with the tailstock (26) that straight line up and down moves in the inboard of tailstock column (25), the top I (27) that can stretch up and down is installed at tailstock (26) right-hand member.
10. large gear measuring instrument according to claim 8 is characterized in that: be integrated with air clamper on the slide block of described supporting plate I (11) bottom surface, be integrated with air clamper on the slide block of described slide plate (15) inner face.
CN2010206093562U 2010-11-16 2010-11-16 Large gear measuring instrument Expired - Lifetime CN201897470U (en)

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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102022990A (en) * 2010-11-16 2011-04-20 陕西秦川机械发展股份有限公司 Large gear measuring instrument
CN103048126A (en) * 2012-12-12 2013-04-17 北京工业大学 Loading device for load-unbalance experiment of static-pressure rotary table
CN103245293A (en) * 2013-05-13 2013-08-14 长春理工大学 Device and method for scanning and measuring appearance of internal gear by using laser rotating mirror
CN103322951A (en) * 2012-03-22 2013-09-25 桂林广陆数字测控股份有限公司 Comprehensive detection center
CN104655013A (en) * 2015-02-05 2015-05-27 柳州如洋精密科技有限公司 Articulated arm for measuring ship ribs
CN104653961A (en) * 2015-02-05 2015-05-27 柳州如洋精密科技有限公司 Articulated arm supporting seat for measuring ship rib
CN106931907A (en) * 2017-03-31 2017-07-07 燕山大学 A kind of annular forging piece appearance and size detecting system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102022990A (en) * 2010-11-16 2011-04-20 陕西秦川机械发展股份有限公司 Large gear measuring instrument
CN102022990B (en) * 2010-11-16 2012-05-30 陕西秦川机械发展股份有限公司 Large gear measuring instrument
CN103322951A (en) * 2012-03-22 2013-09-25 桂林广陆数字测控股份有限公司 Comprehensive detection center
CN103048126A (en) * 2012-12-12 2013-04-17 北京工业大学 Loading device for load-unbalance experiment of static-pressure rotary table
CN103048126B (en) * 2012-12-12 2015-07-22 北京工业大学 Loading device for load-unbalance experiment of static-pressure rotary table
CN103245293A (en) * 2013-05-13 2013-08-14 长春理工大学 Device and method for scanning and measuring appearance of internal gear by using laser rotating mirror
CN103245293B (en) * 2013-05-13 2015-09-30 长春理工大学 Adopt the device and method of laser rotary mirror scanning survey annular wheel pattern
CN104655013A (en) * 2015-02-05 2015-05-27 柳州如洋精密科技有限公司 Articulated arm for measuring ship ribs
CN104653961A (en) * 2015-02-05 2015-05-27 柳州如洋精密科技有限公司 Articulated arm supporting seat for measuring ship rib
CN104655013B (en) * 2015-02-05 2017-06-27 柳州如洋精密科技有限公司 Ship rib measurement joint arm
CN106931907A (en) * 2017-03-31 2017-07-07 燕山大学 A kind of annular forging piece appearance and size detecting system
CN106931907B (en) * 2017-03-31 2019-07-05 燕山大学 A kind of annular forging piece outer dimension detection system

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AV01 Patent right actively abandoned

Granted publication date: 20110713

Effective date of abandoning: 20120530