CN117798856A - Sealing surface detection mechanism for exhaust butterfly valve pipeline of engine - Google Patents
Sealing surface detection mechanism for exhaust butterfly valve pipeline of engine Download PDFInfo
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- CN117798856A CN117798856A CN202410208746.5A CN202410208746A CN117798856A CN 117798856 A CN117798856 A CN 117798856A CN 202410208746 A CN202410208746 A CN 202410208746A CN 117798856 A CN117798856 A CN 117798856A
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- 238000001514 detection method Methods 0.000 title claims abstract description 137
- 238000007789 sealing Methods 0.000 title claims abstract description 60
- 210000000078 claw Anatomy 0.000 claims abstract description 8
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002146 bilateral effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
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- 238000002485 combustion reaction Methods 0.000 description 1
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- 238000002347 injection Methods 0.000 description 1
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Abstract
The invention provides a detection mechanism for a sealing surface of an engine exhaust butterfly valve pipeline, and mainly relates to the field of size detection. The utility model provides an engine exhaust butterfly valve pipeline sealing face detection mechanism, including detecting platform and locating platform, the locating platform middle part is the detection hole, locating platform top bilateral symmetry sets up the clamp cylinder, locating platform bottom slides and sets up the loading board, detecting platform bottom sets up one-level elevating system, detecting platform top sets up central sleeve, central sleeve top sets up the internal stay claw chuck, central sleeve internal rotation sets up interior positioning disk, the internal positioning disk top sets up the slip sleeve with one heart, slip setting detection pole in the slip sleeve, slip sleeve bottom sets up the second grade elevating system that is used for driving the detection pole and goes up and down, detection pole top articulates the detection arm, detection arm front end sets up the detection head. The invention has the beneficial effects that: the invention can improve the detection efficiency and detection precision of the sealing surface of the exhaust butterfly valve pipeline and the overall production efficiency.
Description
Technical Field
The invention mainly relates to the field of size detection, in particular to a detection mechanism for a sealing surface of an engine exhaust butterfly valve pipeline.
Background
Exhaust gas braking is one way of auxiliary braking of automobiles, and is still widely applied to heavy truck and engineering vehicles at present. The exhaust brake is a device that consumes power by changing an engine that is an original power output device to an air compressor. Firstly, after exhaust brake is applied, the oil injection nozzle stops injecting oil, but the engine still works, fresh air is continuously sucked, and meanwhile, a butterfly valve arranged in an exhaust system is closed to block an exhaust manifold, so that the pressure in the exhaust manifold reaches 4-6 air pressure. At this time, the power source of the engine is the inertia force of the continuously sliding vehicle, and is not the energy generated by the combustion of the mixed gas, and the engine piston is compressing the high-pressure air in the exhaust pipe at this time, so that the running kinetic energy of the vehicle is continuously consumed, and the purpose of reducing the vehicle speed is achieved. The exhaust butterfly valve of the engine is a key component for finishing exhaust braking.
The exhaust butterfly valve realizes the whole sealing effect through the hard seal of valve block and contact surface, therefore in order to ensure the leakproofness of exhaust butterfly valve, the contact surface of butterfly valve and the contact surface of pipeline all need carry out high accuracy processing. The processed sealing surface needs to be subjected to spot check and even full check, and after the sealing surface is detected to be qualified and assembled, even a sealing type experiment is performed, the sealing surface can be finally qualified.
The detection of the sealing surface of the valve plate can be rapidly performed through a common micrometer or three coordinates, and the detection efficiency of the sealing surface in the pipeline is extremely low only through the cooperation of a clamp and the slow detection of the sealing surface in the pipeline by using a manual detection mode.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a detection mechanism for the sealing surface of an engine exhaust butterfly valve pipeline, which can improve the detection efficiency and the detection precision of the sealing surface of the exhaust butterfly valve pipeline and the overall production efficiency.
The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:
the utility model provides an engine exhaust butterfly valve pipeline sealing face detection mechanism, includes detection platform and locating bench, the locating bench sets up in detection platform top, the locating bench middle part is the detection hole, locating bench top bilateral symmetry sets up the clamp cylinder, the piston rod front end of clamp cylinder sets up the clamp head, locating bench bottom slides and sets up the loading board, locating bench one side sets up and is used for promoting the gliding pushing cylinder of loading board, the detection bench bottom sets up one-level elevating system, the detection bench top sets up central sleeve, the central sleeve top sets up interior claw chuck, interior claw chuck center has the through-hole concentric with central sleeve, interior rotation sets up interior positioning disk, interior positioning disk outside sets up actuating mechanism, interior positioning disk top sets up the slip sleeve with one heart, slip sets up the measuring rod in the slip sleeve, slip sleeve bottom sets up the second grade elevating system that is used for driving the measuring rod to go up and down, the measuring rod top articulates the measuring arm, the measuring arm front end sets up the measuring head, set up expansion mechanism between measuring rod and the measuring arm, the measuring rod top sets up the angle and limiting device.
The inner supporting jaw chuck is an electric three-jaw chuck, and the top of the clamping jaw of the inner supporting jaw chuck does not exceed the inner sealing surface.
The clamping cylinder is a sliding table cylinder, and the contact surface on the outer side of the clamping head is arc-shaped which is adaptive to the outer wall of the pipeline.
The one-level lifting mechanism comprises a supporting base, a plurality of lifting sleeves and lifting cylinders, wherein the lifting sleeves are uniformly distributed on the supporting base, the tops of the lifting sleeves are connected with the bottoms of the detection tables, and the lifting cylinders are arranged at the center of the supporting base.
The secondary lifting mechanism comprises a supporting frame fixedly connected with the central sleeve and a servo electric push rod, the servo electric push rod is fixedly connected with the supporting frame, and the top end of the push rod of the servo electric push rod is connected with the ball head at the bottom of the detection rod.
The expansion mechanism is a small-sized electric push rod, a hinge seat is arranged on one side, far away from the detection arm, of the detection rod, the bottom of the small-sized electric push rod is hinged with the hinge seat, and the front end of the push rod of the small-sized electric push rod is hinged with the middle part of the detection arm.
The angle limiter is provided with an arc-shaped slot, the angle limiter is detachably fixed at the top of the detection rod through a fastening bolt penetrating through the arc-shaped slot, and when the detection arm is pushed by the expansion mechanism to be opened, the detection arm is in contact with the angle limiter.
The angle between the detection head and the detection arm is adjustable.
Compared with the prior art, the invention has the beneficial effects that:
the invention can realize semi-automatic detection of the inner sealing surface of the exhaust butterfly valve pipeline of the engine, and greatly improve the detection efficiency and detection precision of the inner sealing surface of the pipeline. The device can finish the relative fixation of the inner sealing surface of the pipeline through the cooperation of the clamping cylinder and the inner supporting jaw chuck, further ensure that the inner sealing surface of the pipeline can be in a relatively accurate clamping and positioning state, and ensure the detection precision of the inner sealing surface of the pipeline.
The device completes the extension of the detection unit to the inside of the pipeline through the cooperation of the primary lifting mechanism and the secondary lifting mechanism. Meanwhile, the relative unfolding of the detection head is realized through the driving of the expansion mechanism, and the flatness detection of the inner sealing surface can be completed on the premise of not interfering with the inner wall of the pipeline, so that the detection efficiency of the inner sealing surface of the exhaust butterfly valve pipeline is greatly improved.
Drawings
FIG. 1 is a schematic view of the structure of the three-dimensional view angle of the invention;
FIG. 2 is a schematic diagram of the structure of the front view angle of the present invention;
FIG. 3 is a schematic diagram of the structure of the front view angle detection state of the present invention;
FIG. 4 is a schematic view of the structure of the invention from the bottom perspective;
FIG. 5 is a schematic view of a partial cross-sectional structure of the inspection station of the present invention;
FIG. 6 is a schematic view of the partial enlarged structure of the A part of the present invention.
The reference numbers shown in the drawings: 1. a detection table; 2. a positioning table; 3. a clamping cylinder; 4. a carrying plate; 5. a central sleeve; 6. an inner jaw chuck; 7. an inner positioning disk; 8. a detection rod; 9. an expansion mechanism; 11. a primary lifting mechanism; 111. a support base; 112. lifting the sleeve; 113. a lifting cylinder; 21. a detection hole; 31. a clamping head; 41. a pushing cylinder; 71. a driving mechanism; 72. a sliding sleeve; 73. a secondary lifting mechanism; 81. a detection arm; 82. a detection head; 83. an angle limiter; 91. and a hinging seat.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the invention, and such equivalents are intended to fall within the scope of the invention as defined herein.
As shown in fig. 1-6, the detection mechanism for the sealing surface of the exhaust butterfly valve pipeline of the engine comprises a detection table 1 and a positioning table 2, wherein the positioning table 2 is arranged above the detection table 1. The positioning table 2 positions the pipeline of the exhaust butterfly valve, so that the inner sealing surface of the pipeline is in a horizontal state to be detected. The detection unit is arranged on the detection table 1 and is used for detecting the inner sealing surface of the positioning table 2.
The middle part of the positioning table 2 is provided with a detection hole 21, specifically, the positioning table 2 can be divided into a left part and a right part, and the detection hole 21 is positioned between the positioning tables 2 of the left part and the right part. The detecting unit on the detecting table 1 extends into the inner sealing surface of the pipeline through the detecting hole 21 to detect the flatness of the sealing surface. Clamping cylinders 3 are symmetrically arranged on two sides of the top of the positioning table 2, and clamping heads 31 are arranged at the front ends of piston rods of the clamping cylinders 3. In order to ensure that the clamping cylinder 3 and the clamping head 31 are matched to finish stable clamping of a pipeline, the clamping cylinder 3 adopts a sliding table cylinder, and the tail end of the clamping head 31 is connected with the front end of the sliding table, so that stable extension of the clamping head 31 is ensured. The contact surface on the outer side of the clamping head 31 is arc-shaped and is matched with the outer wall of the pipeline. The pipe can be clamped by clamping the outer wall of the pipe through the clamping head 31, and the preliminary positioning of the pipe is completed. The bottom of the positioning table 2 is provided with a bearing plate 4 in a sliding manner. Specifically, the two sides of the bottom of the positioning table 2 are provided with sliding grooves, and the bearing plate 4 is provided with sliding pairs which are in sliding fit with the sliding grooves, so that the bearing plate 4 can run in opposite directions or in opposite directions. The positioning table 2 is provided with a pushing cylinder 41 on one side for pushing the bearing plates 4 to slide, the pushing cylinder 41 is used as a power component for stretching the bearing plates 4, the two bearing plates 4 can be mutually butted under the pushing action of the pushing cylinder 41, and when the butting of the two bearing plates 4 is completed, the positioning table is used as the height positioning for preliminary clamping of a pipeline. After the subsequent clamping head 31 completes the external clamping and positioning of the pipeline, the pushing cylinder 41 drives the bearing plate 4 to separate so as to expose the detection hole 21, thereby facilitating the detection of the subsequent detection unit.
The bottom of the detection table 1 is provided with a primary lifting mechanism 11, and the primary lifting mechanism 11 is used for lifting and driving the detection table 1. Specifically, the primary lifting mechanism 11 includes a support base 111, a plurality of lifting sleeves 112 and a lifting cylinder 113, wherein a plurality of lifting sleeves 112 are uniformly distributed on the support base 111, the top of each lifting sleeve 112 is connected with the bottom of the detection table 1, and the lifting cylinder 113 is arranged at the center of the support base 111. The lifting cylinder 113 is used for lifting the detection table 1, so that the detection table 1 can drive the detection unit on the detection table to lift, the detection unit can enter a pipeline, and the detection surface is automatically detected. Specifically, the plurality of lifting sleeves 112 are matched, so that the lifting of the detection table 1 is more stable, and the stable extension of the detection unit is further ensured.
The top of the detection table 1 is provided with a central sleeve 5, the top of the central sleeve 5 is provided with an inner supporting jaw chuck 6, and the center of the inner supporting jaw chuck 6 is provided with a through hole concentric with the central sleeve 5. The central sleeve 5 is used as an extension rod for mounting the inner supporting jaw chuck 6, the inner supporting jaw chuck 6 can be extended into the height of the inner sealing surface of the pipeline, and the inner supporting jaw chuck 6 is used for clamping the inner side of the inner sealing surface. Through the clamping of interior claw chuck 6, can carry out stable centre gripping with the pipeline, when interior claw chuck 6 carries out interior claw centre gripping to interior sealing surface, the clamping cylinder 3 loosens the centre gripping to the pipeline outside to the guarantee is to the horizontal clamping of pipeline interior sealing surface. Meanwhile, the inner side surface of the inner sealing surface and the sealing surface belong to coaxial processing, so that the accuracy of the detection of the sealing surface can be improved after the inner side surface of the inner sealing surface is clamped by the inner supporting jaw chuck 6. Further, the inner supporting jaw chuck 6 is an electric three-jaw chuck, and the top of the clamping jaw of the inner supporting jaw chuck 6 does not exceed the inner sealing surface when clamping the inner sealing surface. By the arrangement mode, the clamping jaw of the inner supporting jaw chuck 6 can be prevented from interfering with the subsequent detection hair, and further the accuracy of the inner sealing surface sealing detection is guaranteed.
The inner positioning disk 7 is rotatably arranged in the central sleeve 5. Specifically, the inner bottom of the central sleeve 5 is provided with a ring table, and the inner positioning disk 7 is rotationally connected with the ring table through a bearing. A driving mechanism 71 is arranged outside the inner positioning disk 7. Specifically, an opening is formed in the outer wall of the bottom of the central sleeve 5, driving teeth are coaxially arranged on the inner positioning disk 7, the driving mechanism 71 comprises a servo motor and a driving gear, the driving gear is coaxially arranged with a motor shaft of the servo motor, and the driving gear penetrates through the opening to be meshed with the driving teeth. Through servo motor's drive, can drive the accurate rotation of interior positioning disk 7 stable in center sleeve 5, drive the accurate rotation of the detecting element who installs on it simultaneously.
The sliding sleeve 72 is concentrically arranged at the top of the positioning disc 7, the detection rod 8 is slidably arranged in the sliding sleeve 72, and the detection rod 8 can be lifted up and down under the limit of the sliding sleeve 72. The bottom of the sliding sleeve 72 is provided with a secondary lifting mechanism 73 for driving the detection rod 8 to lift. Specifically, the secondary lifting mechanism 73 comprises a supporting frame fixedly connected with the central sleeve 5 and a servo electric push rod, the servo electric push rod is fixedly connected with the supporting frame, and the top end of the push rod of the servo electric push rod is connected with the ball head at the bottom of the detection rod 8. The detection rod 8 can be driven to accurately lift through the driving of the servo electric push rod, so that the descending action of the detection rod 8 can be stopped at the moment that the detection head contacts the detection surface when the inner sealing surface is detected later.
More specifically, the top of the detecting rod 8 is hinged with a detecting arm 81, the front end of the detecting arm 81 is provided with a detecting head 82, and an expanding mechanism 9 is arranged between the detecting rod 8 and the detecting arm 81. By the action of the expansion mechanism 9, the detection arm 81 can be opened relative to the detection rod 8, so that the detection head 82 is driven to be opened to a certain angle to complete the detection of the inner detection surface. Specifically, the expansion mechanism 9 adopts a small electric push rod, the extension side of the detection rod 8, which is far away from the detection arm 81, is provided with a hinge seat 91, the bottom of the small electric push rod is hinged with the hinge seat 91, and the front end of the push rod of the small electric push rod is hinged with the middle part of the detection arm 81. By the stretching action of the small electric push rod, the stretching angle of the detecting arm 81 can be controlled, and the detection of the inner sealing surface of the pipeline is further ensured. More specifically, the angle limiter 83 is disposed at the top of the detecting rod 8, and the angle limiter 83 can limit the extending angle of the detecting arm 81, so as to avoid the detecting arm 81 from extending excessively to interfere with the inner wall of the pipeline. In one embodiment, the angle limiter 83 is adjusted to serve as a positioner for detecting the extension angle of the arm 81, and when the arm 81 is extended and then brought into contact with the angle limiter 83, the extension is stopped, and the detection head 82 is at the optimal extension angle, and the detection rod 8 is lowered to bring the detection head 82 into contact with the inner sealing surface, thereby detecting the inner sealing surface. More specifically, the angle limiter 83 is provided with an arc slot, the angle limiter 83 is detachably fixed at the top of the detecting rod 8 through a fastening bolt passing through the arc slot, and the limiting angle of the angle limiter 83 can be adjusted by adjusting the fastening position of the fastening bolt in the arc slot, so that the maximum unfolding angle of the detecting arm 81 is adjusted. The angle limiter 83 presents an obtuse angle shape, the obtuse angle fixing edge is the side edge with an arc slot and fixed to the top of the detecting rod 8, the limit edge on the other side of the obtuse angle is located above the detecting arm 81, and after the detecting arm 81 is pushed and stretched by the expanding mechanism 9, the detecting arm 81 is abutted to the bottom of the limit edge to complete positioning.
Further, the angle between the detecting head 82 and the detecting arm 81 is adjustable, the detecting head 82 is an electronic detecting head, one end of the fixing shell of the detecting head 82 is pivoted with the tail end of the detecting arm 81 through a damping shaft, and the angle adjustment of the detecting head 82 can be completed only when the angle of the detecting head 82 is adjusted by a larger external force.
Specifically, when the device is used for detecting the inner sealing surface of the pipeline of the engine exhaust butterfly valve, the bearing plates 4 at two sides are pushed and stretched through the pushing cylinder 41, so that the two bearing plates 4 are in butt joint, then the bottom of the pipeline is placed on the bearing plates 4 for positioning, and the clamping cylinder 3 is used for pushing the clamping head 31 to clamp the outer wall of the pipeline. Then the bearing plate 4 is driven to reset by the pushing cylinder 41, and the detection holes 21 between the positioning tables 2 are opened. The first-stage lifting mechanism 11 then drives the detection table 1 to lift, so that the central sleeve 5 stretches into the pipeline, the inner supporting jaw chuck 6 clamps the inner sealing surface, and the clamping cylinder 3 simultaneously loosens the clamping of the outer wall of the pipeline. Then the second-stage lifting mechanism 73 drives the detection rod 8 to extend out of the central sleeve 5 to the inside of the pipeline, the expansion mechanism 9 drives the detection arm 81 to expand, the detection arm 81 is limited by the angle limiter 83, and the expanded detection head 82 is located above the inner sealing surface. Then the second-stage lifting mechanism 73 drives the detection rod 8 to descend so that the detection head 82 contacts with the inner sealing surface, and then the driving mechanism 71 drives the inner positioning disk 7 to rotate, so that the detection of the whole inner sealing surface is completed.
Claims (8)
1. The utility model provides an engine exhaust butterfly valve pipeline sealing face detection mechanism, includes detection platform (1) and locating bench (2), its characterized in that: the positioning table (2) is arranged above the detection table (1), the middle part of the positioning table (2) is provided with a detection hole (21), clamping cylinders (3) are symmetrically arranged at the two sides of the top of the positioning table (2), clamping heads (31) are arranged at the front ends of piston rods of the clamping cylinders (3), a bearing plate (4) is arranged at the bottom of the positioning table (2) in a sliding mode, a pushing cylinder (41) for pushing the bearing plate (4) to slide is arranged at one side of the positioning table (2), a primary lifting mechanism (11) is arranged at the bottom of the detection table (1), a center sleeve (5) is arranged at the top of the detection table (1), an inner supporting claw chuck (6) is arranged at the top of the center sleeve (5), an inner positioning disc (7) is arranged in a rotating mode, a driving mechanism (71) is arranged at the outer side of the inner positioning disc (7), a sliding sleeve (72) is concentrically arranged at the top of the inner positioning disc (7), a detection rod (8) is arranged in the sliding sleeve (72), a detection rod (8) is arranged at the bottom of the inner supporting claw chuck (6), a detection rod (8) is arranged at the bottom of the second lifting mechanism (73), the front end of the detection arm (81) is provided with a detection head (82), an expansion mechanism (9) is arranged between the detection rod (8) and the detection arm (81), and the top of the detection rod (8) is provided with an angle limiter (83).
2. The engine exhaust butterfly valve pipe sealing surface detection mechanism of claim 1, wherein: the inner supporting jaw chuck (6) is an electric three-jaw chuck, and the top of the clamping jaw of the inner supporting jaw chuck (6) does not exceed an inner sealing surface.
3. The engine exhaust butterfly valve pipe sealing surface detection mechanism of claim 1, wherein: the clamping cylinder (3) is a sliding table cylinder, and the contact surface at the outer side of the clamping head (31) is arc-shaped which is adaptive to the outer wall of the pipeline.
4. The engine exhaust butterfly valve pipe sealing surface detection mechanism of claim 1, wherein: the one-level lifting mechanism (11) comprises a supporting base (111), a plurality of lifting sleeves (112) and lifting cylinders (113), wherein the lifting sleeves (112) are uniformly distributed on the supporting base (111), the top of each lifting sleeve (112) is connected with the bottom of the detecting table (1), and the lifting cylinders (113) are arranged at the center of the supporting base (111).
5. The engine exhaust butterfly valve pipe sealing surface detection mechanism of claim 1, wherein: the secondary lifting mechanism (73) comprises a supporting frame fixedly connected with the central sleeve (5) and a servo electric push rod, the servo electric push rod is fixedly connected with the supporting frame, and the top end of the push rod of the servo electric push rod is connected with a ball head at the bottom of the detection rod (8).
6. The engine exhaust butterfly valve pipe sealing surface detection mechanism of claim 1, wherein: the expansion mechanism (9) is a small-sized electric push rod, a hinge seat (91) is arranged on one side, far away from the detection arm (81), of the detection rod (8), the bottom of the small-sized electric push rod is hinged with the hinge seat (91), and the front end of the push rod of the small-sized electric push rod is hinged with the middle of the detection arm (81).
7. The engine exhaust butterfly valve pipe sealing surface detection mechanism of claim 1, wherein: the angle limiter (83) is provided with an arc-shaped slot, the angle limiter (83) is detachably fixed at the top of the detection rod (8) through a fastening bolt penetrating through the arc-shaped slot, and when the detection arm (81) is pushed by the expansion mechanism (9) to be opened, the detection arm (81) is in contact with the angle limiter (83).
8. The engine exhaust butterfly valve pipe sealing surface detection mechanism of claim 1, wherein: the angle between the detection head (82) and the detection arm (81) is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410208746.5A CN117798856B (en) | 2024-02-26 | Sealing surface detection mechanism for exhaust butterfly valve pipeline of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410208746.5A CN117798856B (en) | 2024-02-26 | Sealing surface detection mechanism for exhaust butterfly valve pipeline of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117798856A true CN117798856A (en) | 2024-04-02 |
| CN117798856B CN117798856B (en) | 2024-05-17 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09257453A (en) * | 1996-03-21 | 1997-10-03 | Toray Ind Inc | Method and apparatus for inspection of cylindrical body and method and apparatus for correction of inside diameter |
| CN1856690A (en) * | 2003-09-22 | 2006-11-01 | 瑞尼斯豪公司 | Method of error compensation in a coordinate measuring machine |
| CN115837460A (en) * | 2023-02-16 | 2023-03-24 | 德林智能科技有限公司 | Automatic molding line for casting |
| CN116475085A (en) * | 2023-03-02 | 2023-07-25 | 徐州市盖力工程机械有限公司 | Tubular fitting measuring device |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09257453A (en) * | 1996-03-21 | 1997-10-03 | Toray Ind Inc | Method and apparatus for inspection of cylindrical body and method and apparatus for correction of inside diameter |
| CN1856690A (en) * | 2003-09-22 | 2006-11-01 | 瑞尼斯豪公司 | Method of error compensation in a coordinate measuring machine |
| CN115837460A (en) * | 2023-02-16 | 2023-03-24 | 德林智能科技有限公司 | Automatic molding line for casting |
| CN116475085A (en) * | 2023-03-02 | 2023-07-25 | 徐州市盖力工程机械有限公司 | Tubular fitting measuring device |
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