CN202903075U - Measuring device for measuring size of pipe-end chamfered groove of steel pipe - Google Patents

Measuring device for measuring size of pipe-end chamfered groove of steel pipe Download PDF

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Publication number
CN202903075U
CN202903075U CN 201220560986 CN201220560986U CN202903075U CN 202903075 U CN202903075 U CN 202903075U CN 201220560986 CN201220560986 CN 201220560986 CN 201220560986 U CN201220560986 U CN 201220560986U CN 202903075 U CN202903075 U CN 202903075U
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chi
pipe
measuring
protracts
arm
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CN 201220560986
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郭运
王啸修
李新文
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Baoshan Iron and Steel Co Ltd
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Baoshan Iron and Steel Co Ltd
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Abstract

Disclosed is a measuring device for measuring the size of a pipe-end chamfered groove of a steel pipe. The measuring device comprises a main ruler, the side ruler body at one end of the main ruler is connected with a forward-extending reference arm, the forward-extending reference arm and the main ruler are perpendicular to each other, a positioning hole is opened on the ruler surface at the junction of the main ruler and the forward-extending reference arm, an auxiliary ruler assembly is installed at the positioning hole by a riveting shaft, the auxiliary ruler assembly is connected with the main ruler and can rotate around the riveting shaft, angle scales are arranged on the ruler surface with the positioning hole of the main ruler as the center, and length scales perpendicular to the forward-extending reference arm are arranged on the body of the main ruler. According to the utility model, the measuring device can be used to measure both the angle of the groove and the length of a truncated edge of the groove under the premise of meeting the precision requirement, can truly and directly reflect the quality of a pipe-end chamfer and is applicable to the field of the measurement of angle, slope gradient and length of pipe-end chamfered grooves of various steel pipes.

Description

A kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe
Technical field
The utility model relates to a kind of survey instrument, relates in particular to a kind of angle, the gradient and measurement of length instrument that is applied to the pipe end chamfered edge groove of steel pipe.
Background technology
At present, in connecting welding work, steel pipe's production and the checkout procedure to steel pipe of each working-yard, often need the pipe end of steel pipe is carried out chamfered edge processing, tube end maching is become the groove of definite shape.And explicitly point out in the requirement to pipe end groove size of APISPEC5L line pipe specification standards, groove angle should be 30 °, and deviation is-0/+5 °, the root face size should be 1.6mm, and deviation is ± 0.8mm.Common pipe end chamfered edge groove is shaped as one and along the wall thickness direction pipe end is cut into the groove inclined-plane of certain angle and the root face of certain-length.
And in order to satisfy above-mentioned standard, the pipe end of steel pipe need to be measured, and normally adopt bevel protractor and vernier caliper or ruler respectively groove angle and root face length to be measured, yet these metering systems all has defective in various degree:
1. when adopting the common angle chi to measure groove angle, can't directly obtain actual groove angle.According to the APISPEC5L standard, groove angle refers to the angle of the perpendicular line of groove inclined-plane and steel pipe axis.Therefore, the angle of groove inclined-plane and inside pipe wall (inwall and steel shaft line parallel) need to be measured first, then actual groove angle can be obtained by Square.There is inconvenient factor in the common angle chi when measuring tube end groove angle.
2. when adopting vernier caliper measurement root face length, two outside measuring jaws of slide calliper rule are ridden over upper edge and the lower edge of root face, then read measurement numerical value.Because upper edge is the intersection on root face face and groove inclined-plane, cause the measuring jaw of slide calliper rule when measuring can't be positioned at accurately on the edge, therefore can't satisfy the measuring accuracy requirement.
3. when adopting ruler to measure root face length, ruler radially is close to root face, then reads length value.Because the scale division value of common ruler is 1mm, and APISPEC5L standard-required root face measurement of length precision is 0.1mm.Therefore, the ordinary steel ruler also can't satisfy the measuring accuracy requirement.
A kind of pipe end bevel size measuring tool of steel pipe of publication number CN201397100Y, comprise a chi shape main body, the two ends of chi shape main body are respectively equipped with a pipe end slope-mouth measuring head, measuring head lays respectively at the up and down both sides of chi shape main body, the inboard of measuring head is measurement face, the shape of the shape of measurement face and steel pipe bevel end matches, and its size is respectively the upper limit or the lower limit of pipe end parameter.
Whether meet technological requirement although this utility model can qualitatively judge steel pipe end slope-mouth size, can't obtain the actual value of groove size, thereby can't give clearly the production technology adjustment, instruct accurately.
In sum, now need a kind of groove size survey instrument of simplification, have both measurement of angle and length measurement function, the convenient use can be satisfied the physical size of acquisition groove in the situation of the accuracy requirement of being correlated with.Both can carry out acceptance or rejection and judge that the adjustment that also can be production technology provided accurate reference, and can measure and directly read groove angle according to relevant criterion and industry standard.
The utility model content
After solving the processing of pipe end chamfered edge, need groove angle and root face length are measured to check whether the groove size meets technological requirement and reach the problem of adjusting with the technique that instructs chamfering process by measurement size, the utility model provides a kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe, can Quick Measurement, read the pipe end slope-mouth angle, and can measure simultaneously the comprehensive survey instrument of root face length, measurement of angle and linear measure longimetry precision all satisfy the requirement of steel pipe's production relevant criterion.Concrete structure of the present utility model is as described below:
A kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe comprises a main scale chi body, it is characterized in that:
Be connected with the reference arm that protracts on the side blade of described main scale chi body one end, this reference arm that protracts is mutually vertical with main scale chi body;
Offer a pilot hole on the chi face of the intersection of described main scale chi body and the reference arm that protracts, use a riveted joint axle that one secondary chi assembly is installed in this pilot hole place, be that secondary chi assembly and main scale chi body link together, and should can centered by the riveted joint axle, rotate by pair chi assembly;
Be provided with an angle index on the described chi face of locating centered by the pilot hole of main scale chi body, the scale direction of this angle index is corresponding with the rotation direction of secondary chi assembly;
Be provided with the length scale vertical with the reference arm that protracts on the blade of described main scale chi body, the coverage rate of this length scale is corresponding with the rotation coverage rate of secondary chi assembly.
According to a kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe of the present utility model, it is characterized in that, described secondary chi assembly comprises that secondary chi protracts and stretches the chi bar behind chi bar and the secondary chi, it is specially, secondary chi protracts and stretches the chi bar behind chi bar and the secondary chi is integral type, the secondary chi chi bar that protracts stretches out main scale chi body and contacts with chamfered edge groove to be measured, stretches the chi bar behind the secondary chi and rotates on the plane of main scale chi body, and secondary chi protracts and stretches the chi bar behind chi bar, pilot hole and the secondary chi is same axis.
According to a kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe of the present utility model, it is characterized in that the range ability of described angle index is 0 ° to 90 °, 0.5 ° of precision.
Initial 0 ° of centerline that is positioned at by pilot hole of angle index, and in the plane perpendicular to the reference arm that protracts.
According to a kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe of the present utility model, it is characterized in that the range ability of described length scale is 0 to 100mm, precision is 1mm.
The utility model has overcome conventional gauges can't directly read groove angle, and the problem of root face linear measure longimetry precision deficiency,
Use a kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe of the present utility model to obtain following beneficial effect:
1. a kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe of the present utility model has overcome conventional gauges and can't directly read groove angle, and the problem of root face linear measure longimetry precision deficiency;
2. a kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe of the present utility model, can survey the groove angle range is 0~90 °, root face length range is 0~10mm.Angle-measurement accuracy is 0.5 °, and the linear measure longimetry precision is 0.1mm;
3. a kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe of the present utility model, when satisfying accuracy requirement, have both groove angle and root face length measurement function, the quality condition that can reflect truly, intuitively the pipe end chamfered edge, simple in structure, the operation put just, practical, be easy to promote the use of.
Description of drawings
Fig. 1 is the concrete structure synoptic diagram of the measurer of a kind of pipe end chamfered edge groove size of measuring steel pipe of the present utility model;
Synoptic diagram when Fig. 2 is the measurement groove angle of measurer of a kind of pipe end chamfered edge groove size of measuring steel pipe of the present utility model;
Schematic diagram when Fig. 3 is the measurement groove angle of measurer of a kind of pipe end chamfered edge groove size of measuring steel pipe of the present utility model;
Synoptic diagram when Fig. 4 is the measurement root face length of measurer of a kind of pipe end chamfered edge groove size of measuring steel pipe of the present utility model;
Schematic diagram when Fig. 5 is the measurement root face length of measurer of a kind of pipe end chamfered edge groove size of measuring steel pipe of the present utility model.
Among the figure: 1-main scale chi body, the 2-reference arm that protracts, the 3-pilot hole, 4-rivets axle, and 5-angle index, 6-length scale, the chamfered edge groove that 7-is to be measured, the secondary chi assembly of A-, the secondary chi of the A1-chi bar that protracts is stretched the chi bar behind the secondary chi of A2-.
Embodiment
Below in conjunction with drawings and Examples a kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe of the present utility model is further described.
Embodiment
As shown in Figure 1, a kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe comprises a main scale chi body 1, is connected with the reference arm 2 that protracts at the side blade of main scale chi body one end, and this reference arm that protracts is mutually vertical with main scale chi body;
Offer a pilot hole 3 on the chi face of the intersection of main scale chi body 1 and the reference arm 2 that protracts, use a riveted joint axle 4 that a secondary chi assembly A is installed in this pilot hole place, be that secondary chi assembly and main scale chi body link together, and should can centered by the riveted joint axle, rotate by pair chi assembly;
Be provided with an angle index 5 on the chi face of locating centered by the pilot hole 3 of main scale chi body 1, the scale direction of this angle index is corresponding with the rotation direction of secondary chi assembly A;
Be provided with the length scale 6 vertical with the reference arm 2 of protracting on the blade of main scale chi body 1, the coverage rate of this length scale is corresponding with the rotation coverage rate of secondary chi assembly A.
Secondary chi assembly A comprises that secondary chi protracts and stretches chi bar A2 behind chi bar A1 and the secondary chi, it is specially, secondary chi protracts and stretches the chi bar behind chi bar and the secondary chi is integral type, the secondary chi chi bar that protracts stretches out main scale chi body 1 and contacts with chamfered edge groove 7 to be measured, stretch the chi bar behind the secondary chi and rotate on the plane of main scale chi body, secondary chi protracts and stretches the chi bar behind chi bar, pilot hole 3 and the secondary chi is same axis.
The range ability of angle index 5 is 0 ° to 90 °, 0.5 ° of precision.
The range ability of length scale is 0 to 100mm, and precision is 1mm.
A kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe of the present utility model, its concrete using method is as described below:
1. measurement groove angle:
As shown in Figure 2, when measuring the groove angle of chamfered edge groove 7 to be measured, steel pipe internal-surface is close on will the protract upper plane of reference arm 2, move main scale chi body 1 in the time of revolute chi assembly A, keep protracting on reference arm plane and internal surface of steel pipe is close to, and so that the secondary chi of secondary chi assembly protracts chi bar A1 lower plane and groove inclined-plane are close to, by mobile and rotation so that on the reference arm that protracts of measurer protract slide calliper rule lower plane and inside pipe wall and groove face of plane and secondary chi fit tightly.
As shown in Figure 3, because oblique line and parallel lines intersect, the similar position angle of cut equates, so α 12Again, vertical angle are equal, i.e. α 23So, α 13According to design, differences in angle measures and is positioned at the zero point of beginning by circle hole centreline and perpendicular to the plane on plane on the reference arm that protracts, so stretch plane indication angle (α on the chi bar behind the secondary chi 3) be groove angle (α 1).So the time stretch chi bar A2 behind the secondary chi the indicated angle in upper plane be groove angle.
2. measure root face length:
As shown in Figure 4, when measuring the root face length of chamfered edge groove 7 to be measured, steel pipe internal-surface is close on the protract upper plane of reference arm 2, mobile main scale chi body 1 so that the root face face be close to the initial plane of reference arm of protracting, then revolute chi assembly A, the lower plane of chi bar A1 leans against edge on the root face so that secondary chi protracts.Like this, the triangle that is consisted of by point by point and lower edge by the upper edge of the center of circle, the root face of riveted joint axle 4 to stretch chi bar A2 behind the axle center of circle, rule zero point and the secondary chi upward the plane be similar to the triangle that the intersection point of scale mark consists of by riveting, take similar triangles mathematical theory in proportion as foundation, root face ratio (the steel pipe root face according to different specification size arranges) by setting in advance can calculate root face length.
As shown in Figure 5, internal surface of steel pipe is close on the plane on the reference arm that protracts, mobile main scale so that the root face face be close to the initial plane of reference arm of protracting, the revolute chi the lower plane of chi bar leans against edge on the root face face so that secondary chi protracts, and consists of two triangle Δ OA as shown in the figure 1B 1With Δ OA 2B 2
O is the center of riveted joint circular hole, A 1The lower edge point of root face, A 2The leading zero's of scale, B 1The upper edge point of root face, B 2To stretch calibration points corresponding to plane on the slide calliper rule bar behind the secondary chi.According to design, A 1, O and A 2On same straight line, B 1, O and B 2On same straight line.Because of A 1B 1∥ A 2B 2So, Δ A 1B 10 ≌ Δ 0A 2B 2So, A 1B 1/ A 2B 2=A 1O/A 2O, A 1B 1=A 2B 2* A 1O/A 2O.
In the present embodiment, after stretch that the indicated scale value in plane is 10 times (preset value can have more the steel pipe adjustment of different specification size) of root face length on the chi bar because OO 2=10 * OO 1, A 2O 2=10 * A 1O 1, and Δ OA 1O 1With Δ OA 2O 2Be right-angle triangle, so A 2O=10 * A 1O.
So, A 1B 1=A 2B 2/ 1O, i.e. root face length A 1B 1Be the indicated length A of secondary chi 2B 20.1 times, namely actual read number/10 are the root face physical length.
A kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe of the present utility model, when satisfying accuracy requirement, have both groove angle and root face length measurement function, the quality condition that can reflect truly, intuitively the pipe end chamfered edge, simple in structure, the operation put just, practical, be easy to promote the use of, be applicable to angle, the gradient and the measurement of length field of the pipe end chamfered edge groove of various steel pipes.

Claims (4)

1. a measurer of measuring the pipe end chamfered edge groove size of steel pipe comprises a main scale chi body (1), it is characterized in that:
Be connected with the reference arm (2) that protracts on the side blade of described main scale chi body (1) one end, this reference arm that protracts is mutually vertical with main scale chi body;
Offer a pilot hole (3) on the chi face of the intersection of described main scale chi body (1) and the reference arm (2) that protracts, use a riveted joint axle (4) that a secondary chi assembly (A) is installed in this pilot hole place, be that secondary chi assembly and main scale chi body link together, and should can centered by the riveted joint axle, rotate by pair chi assembly;
Be provided with an angle index (5) on the described chi face of locating centered by the pilot hole (3) of main scale chi body (1), the scale direction of this angle index is corresponding with the rotation direction of secondary chi assembly (A);
Be provided with the length scale (6) vertical with the reference arm that protracts (2) on the blade of described main scale chi body (1), the coverage rate of this length scale is corresponding with the rotation coverage rate of secondary chi assembly (A).
2. a kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe as claimed in claim 1, it is characterized in that, described secondary chi assembly (A) comprises that secondary chi protracts and stretches chi bar (A2) behind chi bar (A1) and the secondary chi, it is specially, secondary chi protracts and stretches the chi bar behind chi bar and the secondary chi is integral type, the secondary chi chi bar that protracts stretches out main scale chi body (1) and contacts with chamfered edge groove (7) to be measured, stretch the chi bar behind the secondary chi and rotate on the plane of main scale chi body, secondary chi protracts and stretches the chi bar behind chi bar, pilot hole (3) and the secondary chi is same axis.
3. a kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe as claimed in claim 1 is characterized in that the range ability of described angle index (5) is 0 ° to 90 °, and precision is 0.5 °.
4. a kind of measurer of measuring the pipe end chamfered edge groove size of steel pipe as claimed in claim 1 is characterized in that, the range ability of described length scale (6) is 0 to 100mm, and precision is 1mm.
CN 201220560986 2012-10-29 2012-10-29 Measuring device for measuring size of pipe-end chamfered groove of steel pipe Active CN202903075U (en)

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104776829A (en) * 2015-04-19 2015-07-15 凌恺 Pole end tilt measuring scale
CN107228613A (en) * 2016-03-25 2017-10-03 哈尔滨飞机工业集团有限责任公司 A kind of apparatus and method of angle wire measurement
CN108317940A (en) * 2018-02-13 2018-07-24 中核(天津)科技发展有限公司 Cylindrical work pieces is picked up the ears angle detection device and detection method
CN109470123A (en) * 2018-10-23 2019-03-15 中船澄西船舶修造有限公司 A kind of welding groove inspection slide calliper rule
CN109737857A (en) * 2018-11-28 2019-05-10 中车太原机车车辆有限公司 A kind of brake beam measurement method
RU2745203C1 (en) * 2020-07-23 2021-03-22 Федеральное государственное бюджетное учреждение высшего образования «Тамбовский государственный технический университет» (ФГБОУ ВО «ТГТУ») Device for determining the angle of repose of bulk materials

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104776829A (en) * 2015-04-19 2015-07-15 凌恺 Pole end tilt measuring scale
CN107228613A (en) * 2016-03-25 2017-10-03 哈尔滨飞机工业集团有限责任公司 A kind of apparatus and method of angle wire measurement
CN108317940A (en) * 2018-02-13 2018-07-24 中核(天津)科技发展有限公司 Cylindrical work pieces is picked up the ears angle detection device and detection method
CN109470123A (en) * 2018-10-23 2019-03-15 中船澄西船舶修造有限公司 A kind of welding groove inspection slide calliper rule
CN109470123B (en) * 2018-10-23 2020-10-30 中船澄西船舶修造有限公司 Welding groove inspection caliper rule
CN109737857A (en) * 2018-11-28 2019-05-10 中车太原机车车辆有限公司 A kind of brake beam measurement method
RU2745203C1 (en) * 2020-07-23 2021-03-22 Федеральное государственное бюджетное учреждение высшего образования «Тамбовский государственный технический университет» (ФГБОУ ВО «ТГТУ») Device for determining the angle of repose of bulk materials

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