CN109341466B - Device and method for measuring space size of hydraulic actuator cylinder - Google Patents
Device and method for measuring space size of hydraulic actuator cylinder Download PDFInfo
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- CN109341466B CN109341466B CN201811487524.2A CN201811487524A CN109341466B CN 109341466 B CN109341466 B CN 109341466B CN 201811487524 A CN201811487524 A CN 201811487524A CN 109341466 B CN109341466 B CN 109341466B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
Abstract
The invention discloses a device and a method for measuring the space size of a hydraulic actuator cylinder, wherein the measuring device comprises a measuring disc (1), a supporting body (2), a positioning block (3) and a measuring pin (5), and a plurality of size measuring holes and positioning holes are formed in the end surface of the measuring disc (1) in a direction parallel to the axis direction of the measuring disc; the support body (2) comprises a base, a positioning pin is arranged on the upper end face of the base, the support body (2) is connected with the measuring disc (1) through the positioning pin, and a hole with the same inner diameter as the outer diameter of the upper end of the actuator cylinder body (11) is formed in the lower end face of the base; the number of the positioning blocks (3) is two, each positioning block (3) is provided with a positioning plane, the upper ends of the two positioning blocks (3) are connected with the lower end of the support body (2), and the two positioning planes are parallel; the measuring pin (5) is a cylinder which is movably connected with the size measuring hole and the pipe joint nozzle (12). The invention reduces the labor intensity of workers and improves the production efficiency of parts.
Description
Technical Field
The invention belongs to the field of machining, and particularly relates to a device and a method for measuring the space size of a hydraulic actuator cylinder.
Background
The hydraulic actuating cylinder (the sketch of parts is shown in figure 1 and figure 1a) consists of 4 parts, namely a cylinder body 11, pipe connectors 12 and a ring 13, wherein the angles between two pipe connectors 12 and a positioning reference on the cylinder body 11 are 10 degrees and 30 degrees, and the four parts are welded by manual argon arc welding, the space sizes from the centers of the two pipe connectors to the center of the cylinder body are detected after welding, namely L +/-0.3 and (L +3) +/-0.3, and the measurement error is 0.05.
Disclosure of Invention
The invention aims to provide a device and a method for measuring the space size of a pressure actuating cylinder, which can save the measurement time of parts, reduce the labor intensity of workers, improve the production efficiency of parts, reduce the production cost of the parts and improve the benefit of enterprises when measuring the space size.
The invention is realized by the following technical scheme:
a measuring device for the space size of a hydraulic actuator cylinder comprises a measuring disc, a supporting body, a positioning block and a measuring pin;
the end surface of the measuring disc is provided with a plurality of size measuring holes and positioning holes in a direction parallel to the axis direction of the measuring disc;
the support body comprises a base, a positioning pin is arranged on the upper end face of the base, the support body is connected with the measuring disc through the positioning pin, and a hole with the inner diameter the same as the outer diameter of the upper end of the actuating cylinder body is formed in the lower end face of the base;
the number of the positioning blocks is two, each positioning block is provided with a positioning plane, the upper ends of the two positioning blocks are connected with the lower end of the support body, and the two positioning planes are parallel;
the measuring pin is a cylinder movably connected with the size measuring hole and the pipe joint.
The plurality of size measuring holes on the measuring disc are distributed along the circumferential direction of the measuring disc, the distance between the centers of the plurality of measuring holes and the hole distance of the center of the measuring disc covers the upper limit value to the lower limit value of the distance from the center of the pipe connector to the axis of the cylinder, and the difference between the adjacent size measuring holes is a fixed length value;
the positioning hole comprises a central hole positioned in the center of the measuring disc and auxiliary holes positioned on a connecting line of the central hole and the measuring hole, and the distances from the auxiliary holes to the central hole are equal.
The number of the positioning pins is two, and the center distance of the two positioning pins is equal to the center distance between the auxiliary hole and the center hole.
Preferably, there are 7 of said size measuring holes, the fixed length value being equal to 0.1 mm.
A measuring method adopting the measuring device for the space dimension of the hydraulic actuating cylinder is to attach two side straight edges of the hydraulic actuating cylinder to the positioning plane of the positioning block, selecting a measuring disc according to the size to be measured, connecting the measuring disc with a positioning pin at the upper end of the supporting body through a central hole and an auxiliary hole on the measuring disc, penetrating a measuring pin through the size measuring hole and extending towards the pipe connector mouth, if the measuring pin can penetrate through the pipe connector mouth, the distance from the pipe nipple to the axis of the cylinder body is equal to the pitch from the size measuring hole to the central hole, if the measuring pin cannot pass through the pipe nipple, the measuring disk is removed and rotated clockwise to another auxiliary hole and placed in the positioning pin, the measuring pin is again passed through the size measuring hole and extended towards the pipe nipple, if the measuring pin still cannot pass through the pipe nipple, the distance from the pipe nipple to the axis of the cylinder is equal to half the sum of the distance from the sizing hole and the distance from the previous sizing hole to the central hole. It should be noted that the size reading should be performed with the two measuring holes biased in opposite directions, and if the measuring pins are biased in the same direction, i.e. the gap in which they cannot be inserted is in either clockwise or counterclockwise direction, the reading is not performed, and the two are averaged only if the gap in which they cannot be inserted is in either clockwise or counterclockwise direction.
Compared with the existing measurement scheme, the device and the method of the invention save the time for measuring the space size by three coordinates, reduce the labor intensity of workers, improve the production efficiency of parts, reduce the production cost of the parts and improve the benefits of enterprises.
Drawings
FIG. 1 and FIG. 1a are schematic views showing the detailed structure of the parts;
FIGS. 2-4 are schematic views of another angle after assembly of the measuring device and parts;
in the figure, 1-measuring disc, 2-supporting body, 3-positioning block, 4-positioning bolt, 5-measuring pin, 11-cylinder, 12-pipe connector and 13-ring.
Detailed Description
The technical solution of the present invention is further explained below with reference to the accompanying drawings, but the claimed protection scope is not limited to the above.
Taking the size that the distance from the measuring nozzle 12 to the axis of the cylinder 11 is equal to L +/-0.3 as an example, the invention designs a set of measuring device, as shown in fig. 2-4, the device comprises a measuring disc 1, a support body 2, positioning blocks 3, positioning bolts 4 and measuring pin shaft 5 components, wherein 7 size measuring holes and positioning holes are formed in the end face of the measuring disc 1 in the direction parallel to the axis, the support body 2 comprises a base, 2 positioning pins are arranged on the upper end face of the base, the support body 2 is connected with the measuring disc 1 through the positioning pins, a hole with the inner diameter equal to the outer diameter of the upper end of the actuating cylinder 11 is formed in the lower end face of the base, the hole is matched and positioned with the upper end of the cylinder 11, the positioning blocks 3 are two, a positioning plane is arranged on each positioning block 3, the upper ends of the two positioning blocks 3 are connected with the lower end of the support body 2 through the positioning bolts 4, the two positioning planes are parallel, the positioning planes of the positioning blocks 3 are attached to the trapezoidal step on the cylinder body (two protruding trapezoidal steps on the cylinder body 11, as shown in fig. 1, the measuring pin 5, the measuring hole is a measuring pin, the measuring pin shaft, the measuring hole is a measuring hole, the measuring pin shaft, the measuring hole, the measuring pin is movably connected with the central hole, the measuring hole, the cylinder body, the measuring pin shaft, the measuring pin is located on the cylinder, the cylinder body, the measuring pin, the cylinder body 11, the measuring pin is located on the cylinder, the cylinder body, the measuring pin shaft, the cylinder body, the cylinder, the measuring hole, the measuring.
The measuring disc 1 of the device is arranged on two positioning pins of a supporting body 2, two protruding cylindrical pins on a positioning block 3 are inserted into the positioning holes of the supporting body 2 and are fixed by positioning bolts 4. During measurement, the space size of the part is measured by inserting the measuring pin 5 into the pipe joint 12 of the part. When the measuring pin 5 can be smoothly inserted into the pipe connector 12, the size is the space size corresponding to the size measuring hole, and when the measuring pin 5 has more holes and cannot be inserted, the size is the average value of the two space corresponding sizes when the pin is positioned between the two holes.
Taking fig. 1 as an example, and taking the measurement size L ± 0.3 of fig. 1 as an example, the specific embodiment of the parts is as follows:
the method comprises the following steps: the straight edges of the two sides of the component (the straight edges of the surfaces of the trapezoidal bulges) are attached to 2 positioning blocks 3 of the measuring device and put into the device.
Step two: selecting a hole marked by the basic size of the measuring disc 1 of the device, and simultaneously inserting a measuring pin 5 into the hole and an inner hole on a supporting body 2 on the component;
step three, if the measuring pin 5 of the device is inserted into the hole on the supporting body 2 smoothly, the size is L, if the device cannot be inserted smoothly, the deviation of the measuring pin 5 is judged, the measuring hole of the measuring disc 1 is measured according to the deviation rotating device, the measurement is continued, and if two measuring holes cannot enter simultaneously, the size is the average value of the sizes represented by the two holes.
Claims (2)
1. A method for measuring the space size of a hydraulic actuating cylinder is characterized by comprising the following steps:
the adopted measuring device comprises a measuring disc (1), a supporting body (2), a positioning block (3) and a measuring pin (5);
a plurality of size measuring holes and positioning holes are formed in the end face of the measuring disc (1) in a direction parallel to the axis direction of the measuring disc;
the support body (2) comprises a base, a positioning pin is arranged on the upper end face of the base, the support body (2) is connected with the measuring disc (1) through the positioning pin, and a hole with the same inner diameter as the outer diameter of the upper end of the actuator cylinder body (11) is formed in the lower end face of the base;
the number of the positioning blocks (3) is two, each positioning block (3) is provided with a positioning plane, the upper ends of the two positioning blocks (3) are connected with the lower end of the support body (2), and the two positioning planes are parallel;
the measuring pin (5) is a cylinder movably connected with the size measuring hole and the pipe joint nozzle (12);
a plurality of size measuring holes in the measuring disc (1) are distributed along the circumferential direction of the measuring disc (1), the distance between the centers of the measuring holes and the center of the measuring disc (1) covers the upper limit value to the lower limit value of the distance from the center of the pipe connector (12) to the axis of the cylinder body (11), and the difference between the adjacent size measuring holes is a fixed length value;
the positioning hole comprises a central hole positioned in the center of the measuring disc (1) and auxiliary holes positioned on a connecting line of the central hole and the measuring hole, and the distances from the auxiliary holes to the central hole are equal;
7 size measuring holes are arranged, and the fixed length value is equal to 0.1 mm;
during measurement, two side straight edges of a hydraulic actuating cylinder are attached to a positioning plane of a positioning block (3), a measuring disc (1) is selected according to the size to be measured, the measuring disc (1) is connected with a positioning pin at the upper end of a support body (2) through a central hole and auxiliary holes on the measuring disc (1), a measuring pin (5) penetrates through the size measuring hole and extends towards a pipe joint nozzle (12), if the measuring pin (5) can penetrate through the pipe joint nozzle (12), the distance from the pipe joint nozzle (12) to the axis of a cylinder body (11) is equal to the hole distance from the size measuring hole to the central hole, if the measuring pin (5) cannot penetrate through the pipe joint nozzle (12), the measuring disc (1) is taken out and rotated to another auxiliary hole in the clockwise direction and placed in the positioning pin, the measuring pin (5) penetrates through the size measuring hole and extends towards the pipe joint nozzle (12), and if the measuring pin (5) cannot penetrate through the pipe joint nozzle, the distance from the pipe connector (12) to the axis of the cylinder body (11) is equal to half of the sum of the distance from the size measuring hole and the distance from the previous size measuring hole to the center hole.
2. A method of measuring the dimensional space of a hydraulic ram as claimed in claim 1, wherein: the number of the positioning pins is two, and the center distance of the two positioning pins is equal to the center distance between the auxiliary hole and the center hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811487524.2A CN109341466B (en) | 2018-12-06 | 2018-12-06 | Device and method for measuring space size of hydraulic actuator cylinder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811487524.2A CN109341466B (en) | 2018-12-06 | 2018-12-06 | Device and method for measuring space size of hydraulic actuator cylinder |
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| CN109341466A CN109341466A (en) | 2019-02-15 |
| CN109341466B true CN109341466B (en) | 2020-07-21 |
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| CN201811487524.2A Active CN109341466B (en) | 2018-12-06 | 2018-12-06 | Device and method for measuring space size of hydraulic actuator cylinder |
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| CN113188423B (en) * | 2021-03-29 | 2023-05-16 | 国家石油天然气管网集团有限公司华南分公司 | Positioning device and system for detecting symmetry degree of radial hole of shaft part |
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| RU2456539C1 (en) * | 2011-02-10 | 2012-07-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тверской государственный технический университет" | Method of measuring deviation of planes from centre of outer spherical surface |
| CN203323652U (en) * | 2013-07-24 | 2013-12-04 | 山东彼岸电力科技有限公司 | Rapid inspection tool for important size limit deviation of hole on flange |
| CN104048578A (en) * | 2014-06-09 | 2014-09-17 | 陕西法士特齿轮有限责任公司 | Inspection tool for spring of conical surface |
| AU2015101499A4 (en) * | 2015-10-15 | 2015-11-19 | Hengdian Group Innuovo Electric Co., Ltd. | A Screw concentricity detecting device |
| CN105927617A (en) * | 2016-06-12 | 2016-09-07 | 广州飞机维修工程有限公司 | General test platform for large hydraulic actuator cylinder of airplane |
| CN208067382U (en) * | 2018-01-29 | 2018-11-09 | 东莞市鹏乐精密组件有限公司 | A kind of ring flange hole drilling die for the positioning of automobile axle shaft centre bore |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0877224B1 (en) * | 1997-05-07 | 2004-01-07 | Mitutoyo Corporation | Method and instrument with probe for measuring inner or outer dimension of an object |
| CN207046757U (en) * | 2017-08-02 | 2018-02-27 | 中国航空工业集团公司西安飞机设计研究所 | A kind of wheel jacking system pressurized strut |
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2018
- 2018-12-06 CN CN201811487524.2A patent/CN109341466B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2115182U (en) * | 1992-03-14 | 1992-09-09 | 郑利达 | Marking table tool for dividing disc |
| RU2456539C1 (en) * | 2011-02-10 | 2012-07-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тверской государственный технический университет" | Method of measuring deviation of planes from centre of outer spherical surface |
| CN203323652U (en) * | 2013-07-24 | 2013-12-04 | 山东彼岸电力科技有限公司 | Rapid inspection tool for important size limit deviation of hole on flange |
| CN104048578A (en) * | 2014-06-09 | 2014-09-17 | 陕西法士特齿轮有限责任公司 | Inspection tool for spring of conical surface |
| AU2015101499A4 (en) * | 2015-10-15 | 2015-11-19 | Hengdian Group Innuovo Electric Co., Ltd. | A Screw concentricity detecting device |
| CN105927617A (en) * | 2016-06-12 | 2016-09-07 | 广州飞机维修工程有限公司 | General test platform for large hydraulic actuator cylinder of airplane |
| CN208067382U (en) * | 2018-01-29 | 2018-11-09 | 东莞市鹏乐精密组件有限公司 | A kind of ring flange hole drilling die for the positioning of automobile axle shaft centre bore |
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| CN109341466A (en) | 2019-02-15 |
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