CN109945789B - Valve guide pipe size inspection device - Google Patents
Valve guide pipe size inspection device Download PDFInfo
- Publication number
- CN109945789B CN109945789B CN201910276231.8A CN201910276231A CN109945789B CN 109945789 B CN109945789 B CN 109945789B CN 201910276231 A CN201910276231 A CN 201910276231A CN 109945789 B CN109945789 B CN 109945789B
- Authority
- CN
- China
- Prior art keywords
- clamping arm
- clamping
- valve guide
- sensor
- clamp
- 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.)
- Active
Links
- 238000007689 inspection Methods 0.000 title claims description 11
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a valve guide pipe size checking device which comprises a shell arranged on one side of a base, wherein a double-head cylinder is arranged in the shell, the output end of the double-head cylinder is connected with a clamping arm used for clamping a to-be-checked object, a diameter sensor used for detecting the relative displacement distance of the clamping arm is arranged on the clamping arm, a length sensor used for detecting the front-back displacement distance of the to-be-checked object is arranged on the other side of the base, and a cylinder used for realizing the displacement of the length sensor is arranged in the base. According to the invention, the clamping arms and the baffle plates on two sides of the detection platform are used for effectively clamping materials, the materials are respectively measured after clamping through the length sensor and the diameter sensor, so that the detection efficiency and the detection precision are effectively improved, the constraint of manual detection is eliminated, the productivity is liberated, meanwhile, the transmission efficiency of the transmission part of the device is high, the clamped materials can be ensured to be actually measured, and the precision of the device is further improved.
Description
Technical Field
The invention relates to the technical field of valve guide pipe detection, in particular to a valve guide pipe size detection device.
Background
The length of the valve guide pipe and the diameter of the oil seal are critical dimensions which directly influence the performance of the product, and once the out-of-tolerance occurs, serious quality problems can occur after the part is installed, so that the inspection of the dimensions is particularly important, the current general detection method is to detect the length dimension by using a vernier caliper and the diameter of the oil seal by using an outside micrometer, and the measurement method needs a great deal of manpower and material resources, has low efficiency and has the risk of omission detection, and is a problem which needs to be solved by relevant technicians in an urgent way how to design a device which can detect the outside diameter and the length quickly and efficiently and simultaneously.
Disclosure of Invention
The present invention is directed to a valve guide dimension inspection device, which solves the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a valve guide size inspection device, includes the casing of setting in base one side, be provided with the double-end cylinder in the casing, the output of this double-end cylinder is connected with the centre gripping arm that is used for the centre gripping to wait to examine the thing, be provided with the diameter sensor that is used for detecting centre gripping arm relative displacement distance on the centre gripping arm, the opposite side of base is provided with the length sensor who is used for detecting to wait to examine the thing front and back displacement distance, be provided with the cylinder that is used for realizing the length sensor displacement in the base.
The clamping arm comprises a clamping arm I, a clamping arm II, a clamp I and a clamp II, wherein the clamping arm I and the clamping arm II are symmetrically arranged in parallel and are arranged at the output end of the double-head cylinder, the clamp I and the clamp II are fixedly connected to the front ends of the clamping arm I and the clamping arm II respectively, and the clamp I and the clamp II are symmetrically arranged about the horizontal central axis of the space between the clamping arm I and the clamping arm II.
The diameter sensor is arranged on the clamping arm II through a fixing piece, a first sensing piece used for sensing a signal loop of the diameter sensor is arranged on the clamping arm I, and the center point of the first sensing piece and the sensing end of the end head of the diameter sensor are arranged on the same horizontal axis.
The output axial of cylinder is connected with the transfer line, and the output setting of this transfer line is in the outside of base, and through the fixed plate fixed connection length sensor of vertical setting, the backplate that is used for impeing the thing of waiting to examine is installed on the upper portion of fixed plate.
The end face of the base is provided with a detection platform for placing an object to be detected, and the end face of the detection platform is fixedly connected with a front baffle which is used for blocking the object to be detected to advance and is arranged in an area between the first clamping arm and the second clamping arm.
And a second sensing piece for sensing a signal loop by the length sensor is arranged on the upper part, and the second sensing piece and the end sensing end of the length sensor are arranged on the same horizontal axis.
The width of the front baffle is smaller than the minimum diameter of the object to be detected, the front baffle is arranged on the central axis of the area between the first clamping arm and the second clamping arm, and the front baffle and the rear baffle are arranged on the same horizontal central axis.
The end face of the detection platform is provided with a storage groove for orientation of a to-be-detected object, the storage groove is arranged on the vertical face of the central axis where the front baffle and the rear baffle are located, and the storage groove is arranged as an arc groove.
According to the technical scheme, the clamping arms and the baffle plates on two sides of the detection platform are used for effectively clamping materials, the materials are measured through the length sensor and the diameter sensor which are arranged after clamping, the detection efficiency and the detection precision are effectively improved, the constraint of manual detection is eliminated, the productivity is liberated, meanwhile, the transmission efficiency of the transmission piece of the device is high, the fact that the clamped materials are actually measured can be guaranteed, and the precision of the device is further improved.
Drawings
FIG. 1 is a schematic side view and a partial schematic internal view of the present invention;
Fig. 2 is a schematic top view of the present invention.
In the figure: 1a shell, 2a base, 3a cylinder, 4a transmission rod, 5a length sensor, 6 a fixed plate, 7a detection platform, 8 a valve guide pipe, 9 a front baffle, 10 a fixed piece, 11a diameter sensor, 12 a clamping arm, 121 a clamping arm I, 122 a clamping arm II, 123 a clamping tool I, 124 a clamping tool II, 13a double-head cylinder, 14a sensing piece II, 15 a sensing piece I and 16 a rear baffle.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
1-2, a valve guide size inspection device comprises a shell 1 arranged on one side of a base 2, wherein a double-head cylinder 13 is arranged in the shell 1, the output end of the double-head cylinder 13 is connected with a clamping arm 12 for clamping an object to be inspected, a diameter sensor 11 for detecting the relative displacement distance of the clamping arm 12 is arranged on the clamping arm 12, a length sensor 5 for detecting the front-back displacement distance of the object to be inspected is arranged on the other side of the base 2, and the object to be inspected is a valve guide 8 shown in the drawing in the embodiment; the clamping arm 12 comprises a clamping arm I121, a clamping arm II 122, a clamp I123 and a clamp II 124, wherein the clamping arm I121 and the clamping arm II 122 are symmetrically arranged in parallel and are arranged at the output end of the double-head air cylinder 13, the clamp I123 and the clamp II 124 are respectively and fixedly connected to the front ends of the clamping arm I121 and the clamping arm II 122, and the clamp I123 and the clamp II 124 are symmetrically arranged about the horizontal central axis of the space between the clamping arm I121 and the clamping arm II 122; a first sensing piece 15 for sensing a signal loop of the diameter sensor 11 is arranged on the first clamping arm 121, the center point of the first sensing piece 15 and the end sensing end of the diameter sensor 11 are arranged on the same horizontal axis, and when the two clamping arms move relatively, the diameter sensor 11 is driven to move along the direction of the sensing piece 15; a cylinder 3 for realizing displacement of the length sensor 5 is arranged in the base 2.
Further, the output end axial of cylinder 3 is connected with transfer line 4, and the output of this transfer line 4 sets up in the outside of base 2, and through the fixed plate 6 fixed connection length sensor 5 of vertical setting, the backplate 16 that is used for promoting the thing of examining is installed on the upper portion of fixed plate 6, can see from the drawing that fixed plate 6 and backplate 16 connect as an organic wholely to the length sensor 5 that installs on fixed plate 6 sets up the corresponding face at response piece two 14, and when cylinder 3 drives transfer line 4 and removes, just can make backplate 16 remove the same distance along the horizontal direction, and the length sensor 5 of fixed connection on fixed plate 6 also can remove along the horizontal direction simultaneously.
Further, the end face of the base 2 is provided with a detection platform 7 for placing a to-be-detected object, the end face of the detection platform 7 is fixedly connected with a front baffle 9 for blocking the to-be-detected object to advance and arranged in an area between the first clamping arm 121 and the second clamping arm 122, a second sensing piece 14 for sensing a signal loop of the length sensor 5 is mounted on the front baffle 9, the second sensing piece 14 and the end sensing end of the length sensor 5 are arranged on the same horizontal axis, the integral component formed by the fixing plate 6 and the rear baffle 16 is displaced along the horizontal direction under the action of the driving rod 4 driven by the air cylinder 3, and the length sensor 5 is also displaced along the horizontal direction.
Further, the width of the front baffle 9 is smaller than the minimum diameter of the object to be inspected and is disposed on the central axis of the area between the first clamping arm 121 and the second clamping arm 122, the front baffle 9 and the rear baffle 16 are disposed on the same horizontal central axis, and the width of the front baffle 9 is limited to ensure that the first clamping arm 121 and the second clamping arm 122 do not collide with the front baffle 9 when the object to be inspected is clamped after the first clamping arm 121 and the second clamping arm 122 are clamped, and meanwhile, the front baffle 9 and the rear baffle 16 are disposed on the same horizontal central axis, so that the object to be inspected can be stably clamped after being pushed, and the clamping accuracy is improved.
The cylinder 3, the length sensor 5, the double-ended cylinder 13 and the diameter sensor 11 are all provided with relay connectors, and can be measured after being connected with a PC, which is a common means for a person skilled in the art, and the scheme is not specifically described.
It is worth mentioning that the valve guide pipe size checking device has the function of checking the diameter by clamping the front end part of the object to be checked through the first clamp 123 and the second clamp 124 in the using process, can be suitable for detecting and simultaneously detecting the object to be checked with various tubular structures by detecting and reading the length of the product through the length sensor 5, is efficient and easy to operate, firstly, the valve guide pipe 8 is placed in the object placing groove on the detecting platform 7, the air cylinder 3 and the double-headed air cylinder 13 are controlled to respectively conduct the transmission rod 4 and the clamping arm 12, in the conducting process, the transmission rod 4 drives the fixed plate 6 to move along the direction of the valve guide pipe 8 and pushes the valve guide pipe 8 through the rear baffle 16, when the valve guide pipe 8 is pushed to the front baffle 9 and the rear baffle 16 and the front baffle 9 are ensured to be clamped, at this time, the clamping arm 12 clamps the front end of the valve guide 8 so as to achieve the effect of fixing the valve guide 8, in the implementation process, a preset initial value is input into the length sensor 5 and the diameter sensor 11, so that the length sensor 5 respectively obtains the diameter and the length of the valve guide 8 by detecting the relative distance between the length sensor 5 and the second sensing piece 14 and the relative distance between the diameter sensor 11 and the first sensing piece 15, the input initial value comprises the distance L1 between the first sensing piece 15 and the diameter sensor 11 when the first clamp 123 and the second clamp 124 do not clamp the valve guide 8, and the distance between the first sensing piece 15 and the diameter sensor 11 is L2 after the valve guide 8 is clamped, and the detected diameter d1=L2-L1; meanwhile, the input initial value also comprises a distance L3 between the second sensing piece 14 and the side surface of the front baffle plate 9, and a length L4 between the end detection part of the length sensor 5 and the edge part of the rear baffle plate 16, when the valve guide pipe 8 is clamped by the front baffle plate 9 and the rear baffle plate 16, the distance between the length sensor 5 and the second sensing piece 14 is L5, and the length D2 = L5-L4-L3 at the moment; meanwhile, it should be noted that the diameter sensor 11, the length sensor 5, the double-head cylinder 13 and the cylinder 3 adopted in the present patent are all related devices commonly used by technicians in the prior art, and can be equivalently replaced in the actual application process, and the embodiment is not limited to specific product types; the diameter sensor 11 and the length sensor 5 are the same sensors, the model of the diameter sensor is GT2-P12K, the model of the double-head air cylinder 13 is MHZ2-16D-M9BW, and the model of the air cylinder 3 is MXZ20-20-M9BW.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (5)
1. The utility model provides a valve guide size inspection device, includes casing (1) of setting up in base (2) one side, its characterized in that: the device is characterized in that a double-head air cylinder (13) is arranged in the shell (1), the output end of the double-head air cylinder (13) is connected with a clamping arm (12) for clamping an object to be detected, a diameter sensor (11) for detecting the relative displacement distance of the clamping arm (12) is arranged on the clamping arm (12), a length sensor (5) for detecting the front-back displacement distance of the object to be detected is arranged on the other side of the base (2), and an air cylinder (3) for realizing the displacement of the length sensor (5) is arranged in the base (2);
the clamping arm (12) comprises a clamping arm I (121), a clamping arm II (122), a clamp I (123) and a clamp II (124), wherein the clamping arm I (121) and the clamping arm II (122) are symmetrically arranged in parallel and are arranged at the output end of the double-head air cylinder (13), the clamp I (123) and the clamp II (124) are respectively and fixedly connected to the front ends of the clamping arm I (121) and the clamping arm II (122), and the clamp I (123) and the clamp II (124) are symmetrically arranged about the horizontal central axis of the space between the clamping arm I (121) and the clamping arm II (122);
the end face of the base (2) is provided with a detection platform (7) for placing a to-be-detected object, and the end face of the detection platform (7) is fixedly connected with a front baffle (9) which is used for blocking the to-be-detected object from advancing and is arranged in an area between the clamping arm I (121) and the clamping arm II (122); and a second sensing piece (14) for sensing a signal loop by the length sensor (5) is arranged on the front baffle (9), and the second sensing piece (14) and the end sensing end of the length sensor (5) are arranged on the same horizontal axis.
2. A valve guide size inspection device according to claim 1, characterized in that: the diameter sensor (11) is arranged on the clamping arm II (122) through the fixing piece (10), the clamping arm I (121) is provided with a first sensing piece (15) for sensing a signal loop by the diameter sensor (11), and the center point of the first sensing piece (15) and the end sensing end of the diameter sensor (11) are arranged on the same horizontal axis.
3. A valve guide size inspection device according to claim 1, characterized in that: the output end of the air cylinder (3) is axially connected with a transmission rod (4), the output end of the transmission rod (4) is arranged on the outer side of the base (2), the transmission rod is fixedly connected with a length sensor (5) through a vertically arranged fixing plate (6), and a rear baffle (16) for pushing a to-be-detected object is arranged on the upper portion of the fixing plate (6).
4. A valve guide size inspection device according to claim 1, characterized in that: the width of the front baffle (9) is smaller than the minimum diameter of the object to be detected, the front baffle is arranged on the central axis of the area between the first clamping arm (121) and the second clamping arm (122), and the front baffle (9) and the rear baffle (16) are arranged on the same horizontal central axis.
5. A valve guide size inspection device according to claim 1, characterized in that: the end face of the detection platform (7) is provided with a storage groove for orientation of a to-be-detected object, the storage groove is arranged on the vertical face of the central axis where the front baffle (9) and the rear baffle (16) are located, and the storage groove is arranged as an arc groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276231.8A CN109945789B (en) | 2019-04-08 | 2019-04-08 | Valve guide pipe size inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276231.8A CN109945789B (en) | 2019-04-08 | 2019-04-08 | Valve guide pipe size inspection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109945789A CN109945789A (en) | 2019-06-28 |
| CN109945789B true CN109945789B (en) | 2024-05-28 |
Family
ID=67012635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910276231.8A Active CN109945789B (en) | 2019-04-08 | 2019-04-08 | Valve guide pipe size inspection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109945789B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011133385A (en) * | 2009-12-25 | 2011-07-07 | Diesel United:Kk | Measurement method for inside diameter of cylinder bore, and measuring device thereof |
| WO2014187012A1 (en) * | 2013-05-24 | 2014-11-27 | 深圳市华星光电技术有限公司 | Method for routinely testing and automatically correcting length measuring machine |
| CN104772652A (en) * | 2014-12-01 | 2015-07-15 | 鲁玉琼 | Coaxiality deviation measurement digital display device and position deviation calculation method |
| CN204639796U (en) * | 2014-12-01 | 2015-09-16 | 苏志军 | A kind of coaxiality deviation measures digital display device |
| CN204649955U (en) * | 2015-05-22 | 2015-09-16 | 国家电网公司 | The special external voltage pincers of tester |
| CN105173703A (en) * | 2015-08-15 | 2015-12-23 | 安庆帝伯粉末冶金有限公司 | Reversible gripper assembly for valve seat rings and valve guide pipes |
| CN205245993U (en) * | 2015-12-22 | 2016-05-18 | 苏州工业园区迈泰克自动化技术有限公司 | Groove device is surveyed to laser |
| CN205537583U (en) * | 2016-03-21 | 2016-08-31 | 合肥欣奕华智能机器有限公司 | Interval detection device |
| CN106680284A (en) * | 2015-11-06 | 2017-05-17 | 艾斯迈科技股份有限公司 | Substrate detection device and method thereof |
| CN107160133A (en) * | 2017-06-28 | 2017-09-15 | 江苏哈工药机科技股份有限公司 | A kind of solar thermal collector production clamps pushing equipment with frame |
| CN206563566U (en) * | 2017-01-16 | 2017-10-17 | 深圳市泰元丰机电有限公司 | Cardan axis is to clearance test machine |
| CN107607398A (en) * | 2017-08-11 | 2018-01-19 | 北京工业大学 | A kind of measuring method of residual stress to bolt fastening structure clamping force influence of fading |
| CN108593653A (en) * | 2017-12-31 | 2018-09-28 | 芜湖哈特机器人产业技术研究院有限公司 | A kind of screw classification of view-based access control model and damage detection device and method |
| CN108680112A (en) * | 2018-08-10 | 2018-10-19 | 玉柴联合动力股份有限公司 | A kind of valve retainer wear measurement device and its operating method |
| CN208026213U (en) * | 2018-04-20 | 2018-10-30 | 华中科技大学 | A kind of cylindrical part surface linearity testing apparatus |
| CN210198315U (en) * | 2019-04-08 | 2020-03-27 | 安庆帝伯粉末冶金有限公司 | Valve guide pipe size inspection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100286791A1 (en) * | 2006-11-21 | 2010-11-11 | Goldsmith David S | Integrated system for the ballistic and nonballistic infixion and retrieval of implants |
-
2019
- 2019-04-08 CN CN201910276231.8A patent/CN109945789B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011133385A (en) * | 2009-12-25 | 2011-07-07 | Diesel United:Kk | Measurement method for inside diameter of cylinder bore, and measuring device thereof |
| WO2014187012A1 (en) * | 2013-05-24 | 2014-11-27 | 深圳市华星光电技术有限公司 | Method for routinely testing and automatically correcting length measuring machine |
| CN104772652A (en) * | 2014-12-01 | 2015-07-15 | 鲁玉琼 | Coaxiality deviation measurement digital display device and position deviation calculation method |
| CN204639796U (en) * | 2014-12-01 | 2015-09-16 | 苏志军 | A kind of coaxiality deviation measures digital display device |
| CN204649955U (en) * | 2015-05-22 | 2015-09-16 | 国家电网公司 | The special external voltage pincers of tester |
| CN105173703A (en) * | 2015-08-15 | 2015-12-23 | 安庆帝伯粉末冶金有限公司 | Reversible gripper assembly for valve seat rings and valve guide pipes |
| CN106680284A (en) * | 2015-11-06 | 2017-05-17 | 艾斯迈科技股份有限公司 | Substrate detection device and method thereof |
| CN205245993U (en) * | 2015-12-22 | 2016-05-18 | 苏州工业园区迈泰克自动化技术有限公司 | Groove device is surveyed to laser |
| CN205537583U (en) * | 2016-03-21 | 2016-08-31 | 合肥欣奕华智能机器有限公司 | Interval detection device |
| CN206563566U (en) * | 2017-01-16 | 2017-10-17 | 深圳市泰元丰机电有限公司 | Cardan axis is to clearance test machine |
| CN107160133A (en) * | 2017-06-28 | 2017-09-15 | 江苏哈工药机科技股份有限公司 | A kind of solar thermal collector production clamps pushing equipment with frame |
| CN107607398A (en) * | 2017-08-11 | 2018-01-19 | 北京工业大学 | A kind of measuring method of residual stress to bolt fastening structure clamping force influence of fading |
| CN108593653A (en) * | 2017-12-31 | 2018-09-28 | 芜湖哈特机器人产业技术研究院有限公司 | A kind of screw classification of view-based access control model and damage detection device and method |
| CN208026213U (en) * | 2018-04-20 | 2018-10-30 | 华中科技大学 | A kind of cylindrical part surface linearity testing apparatus |
| CN108680112A (en) * | 2018-08-10 | 2018-10-19 | 玉柴联合动力股份有限公司 | A kind of valve retainer wear measurement device and its operating method |
| CN210198315U (en) * | 2019-04-08 | 2020-03-27 | 安庆帝伯粉末冶金有限公司 | Valve guide pipe size inspection device |
Non-Patent Citations (2)
| Title |
|---|
| 小型内燃机气门与气门导管配合间隙的测量;庄稼祥;;内燃机(第05期);全文 * |
| 快速检查气门导管的磨损;左;;农业机械;20100608(第12期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109945789A (en) | 2019-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109945789B (en) | Valve guide pipe size inspection device | |
| CN210198315U (en) | Valve guide pipe size inspection device | |
| CN204115645U (en) | A kind of spring eye measuring instrument | |
| CN109115137B (en) | Clamping type live cable insulation layer thickness and inner and outer diameter measuring device | |
| CN210400354U (en) | Oil pump end face clearance detection device | |
| CN210268999U (en) | Measuring device for pressure drop of dehydrogenation fixed bed reactor | |
| CN216049757U (en) | Workpiece height detection pressing mechanism | |
| CN213179827U (en) | Bolt straightness detection tool | |
| CN215064453U (en) | Part roundness straightness concentricity inspection device | |
| CN213956225U (en) | Threshold front supporting plate detection tool | |
| CN215217419U (en) | Detection tool for measuring width direction of water jacket core fabrication hole | |
| CN212031146U (en) | Device for measuring welding firmness of pipe cap | |
| CN213147636U (en) | Grouting sleeve structure length dimension checking fixture | |
| CN211147726U (en) | Part mistake proofing detection device | |
| CN213600014U (en) | Hardware tool production size detection device | |
| CN203551392U (en) | Vacuum tube compressive property detection device | |
| CN218995247U (en) | Ultrasonic detection probe for industrial flaw detection | |
| CN113155358B (en) | Calibration device for tension and pressure sensor | |
| CN210119184U (en) | Utensil is examined with utensil of examining of cylinder work piece to mould production | |
| CN215572770U (en) | Steel size detection device | |
| CN220649300U (en) | Terminal crimping height detection device | |
| CN203534577U (en) | Thin plate sample cross section measurement device | |
| CN218566460U (en) | Communication part checking fixture | |
| CN209783483U (en) | Go-no go gauge detection tool for detecting automobile engine pipe fitting | |
| CN219244619U (en) | Engineering material checking and measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |