CN203364680U - Inner chamfer diameter vernier caliper - Google Patents

Inner chamfer diameter vernier caliper Download PDF

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Publication number
CN203364680U
CN203364680U CN 201320416280 CN201320416280U CN203364680U CN 203364680 U CN203364680 U CN 203364680U CN 201320416280 CN201320416280 CN 201320416280 CN 201320416280 U CN201320416280 U CN 201320416280U CN 203364680 U CN203364680 U CN 203364680U
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CN
China
Prior art keywords
vernier caliper
caliper
clamping claws
inner chamfer
utility
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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
Application number
CN 201320416280
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Chinese (zh)
Inventor
张亦扬
李会玲
孟德寅
汪凤华
刘凤军
张大勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Steel Tube Manufacturing Co., Ltd.
Original Assignee
Tianjin Pipe Group Corp
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Tianjin Pipe Group Corp filed Critical Tianjin Pipe Group Corp
Priority to CN 201320416280 priority Critical patent/CN203364680U/en
Application granted granted Critical
Publication of CN203364680U publication Critical patent/CN203364680U/en
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Abstract

The utility model provides an inner chamfer diameter vernier caliper. The vernier caliper comprises a caliper body and two clamping claws; the top ends of the two clamping claws incline correspondingly; angles of inclination between the two clamping claws and the caliper body are included angles of 15 degree angles; the top ends of the two clamping claws are wedged into one cone-shaped measuring head respectively; the apex angle of the top end of the cone-shaped measuring head is 30 degrees; and the conical surfaces of the inner sides of the two clamping claws and the plane of the top ends of the clamping claws form an angle of 120 degrees. With the inner chamfer diameter vernier caliper of the utility model adopted, accurate measurement of the diameter of a chamfer of a steel tube can be realized. Compared with an ordinary caliper, the inner chamfer diameter vernier caliper of the utility model is advantageous in accurate measurement results, guarantee of product quality, and convenient use. If the inner chamfer diameter vernier caliper is utilized to measure 50 casings in 139.7 * 9.17 TPCQ specification and 50 casings in 244.48 * 11.99TPCQ specification, as a result, the average efficiency can be improved by 22.2%. The measuring heads of the inner chamfer diameter vernier caliper can be replaced, and therefore, the service life of the caliper can be improved. At present, measuring heads of three calipers which were seriously abraded are replaced; as tested, the calipers can be used continuously; and therefore, production cost can be reduced.

Description

Interior chamfering diameter vernier caliper
Technical field
The utility model relates to a kind of survey instrument, particularly a kind of interior chamfering diameter vernier caliper.
Background technology
Use the interior chamfering diameter of conventional kind of calliper steel pipe, because claw can not cause the measuring position of claw can not accurately lean on firmly calmly well with the laminating of interior chamfering inclined-plane, can only estimate and choose approximate location, to measurement result, bring very large error.
Summary of the invention
For structural deficiency in prior art, the purpose of this utility model is to provide a kind of interior chamfering diameter vernier caliper, by the transformation of claw, the slide calliper rule claw can be fitted on interior face, stable reading, accurate, reliable while making to measure.
For achieving the above object, the technical solution adopted in the utility model is to provide a kind of interior chamfering diameter vernier caliper, wherein: this vernier caliper includes blade, two claws, the described two corresponding inclinations in claw top, be 15 degree angles with the blade pitch angle, a tapered gauge head is wedged respectively on two claw tops, and described tapered gauge head top drift angle is 30 degree angles, and the inboard conical surface of two claws and claw top Plane Angle are 120 degree.
Effect of the present utility model is chamfering diameter vernier caliper in using, and has realized the accurate measurement to chamfering diameter in steel pipe, and more common slide calliper rule, not only make measurement result accurate, guaranteed product quality, and easy to use.139.7*9.17,244.48*11.99TPCQ two specification sleeve pipes are chosen in scene, and each measures 50, and av eff improves 22.2%.The design of replaceable gauge head, improved the slide calliper rule life-span, existing three the more serious slide calliper rule of wearing and tearing changed to gauge head at present, by calibrating, can continue to use, and reduced production cost.Compare by following table, obviously find out the efficiency of using the interior chamfering caliber of chamfering diameter vernier caliper measurement in this:
Specification 50 of common kind of calliper 50 of interior chamfering diameter kind of calliper
139.7*9.17 635 seconds 515 seconds
244.48*11.99 867 seconds 653 seconds
The accompanying drawing explanation
Fig. 1 is interior chamfering diameter vernier caliper structural representation of the present utility model;
Fig. 2 is gauge head schematic diagram of the present utility model;
Fig. 3 is interior chamfering diameter vernier caliper measurement schematic diagram of the present utility model.
In figure:
1, blade 2, claw 3, gauge head
Embodiment
By reference to the accompanying drawings the structure of interior chamfering diameter vernier caliper of the present utility model is illustrated.
Interior chamfering diameter vernier caliper of the present utility model, this vernier caliper includes blade 1, two claws 2, the described two claw 2 corresponding inclinations in top, be 15 degree angles with the blade pitch angle, a tapered gauge head is wedged respectively on two claw 2 tops, described tapered gauge head top drift angle is 30 degree angles, and the inboard conical surface of two claws and claw top Plane Angle are 120 degree, and described blade 1 high scale specification is 500mm.
Scale zero-bit on described blade 1 is 15mm, and it is 15mm that two tapered gauge heads close up rear bottom width.
As shown in Figure 1, 2, interior chamfering diameter vernier caliper of the present utility model is comprised of blade 1, claw 2, gauge head 3, integral body is formed by the 500 long size slide calliper rule transformations of the way, measurement range is 15-350mm, claw 2 tops tilt, and with blade 1, are 15 degree angles, and a tapered gauge head 3 is all wedged on the two inboard tops of claw 2, drift angle is 30 degree, and the inboard conical surface of two claws 2 and claw top Plane Angle are 120 degree.During measurement, claw can be good at contacting with chamfering top in steel pipe with the angle that the gauge head conical surface forms, and it is accurately convenient to make to measure.Blade 1 scale zero-bit is 15mm, and closing up rear bottom width with tapered gauge head is that 15mm is identical, and while therefore measuring, the reading of blade 1 is chamfering diameters in steel pipe.Tapered gauge head 3 is designed to replaceable, and the scrapping of slide calliper rule while avoiding serious wear, improved the slide calliper rule life-span, reduced the measurement cost.
As shown in Figure 3, the interior chamfering that in figure, the arrow indication is measuring tube.While using interior chamfering diameter vernier caliper of the present utility model, chamfering diameter in Test Field measuring tube pipe end, selecting specification is 139.7*7.72 and 244.48*11.99, the steel pipe of TPCQ button-type; Each specification is measured 50.In utilizing, the tapered gauge head of chamfering diameter vernier caliper can be good in laminating falling face, the diameter of chamfering in Measurement accuracy.

Claims (3)

1. chamfering diameter vernier caliper in a kind, this vernier caliper includes blade (1), two claws (2), it is characterized in that: the corresponding inclination in described two claws (2) top, be 15 degree angles with the blade pitch angle, a tapered gauge head is wedged respectively on two claws (2) top, described tapered gauge head top drift angle is 30 degree angles, and the inboard conical surface of two claws and claw top Plane Angle are 120 degree.
2. interior chamfering diameter vernier caliper according to claim 1, it is characterized in that: the scale zero-bit on described blade (1) is 15mm, it is 15mm that two tapered gauge heads close up rear bottom width.
3. interior chamfering diameter vernier caliper according to claim 1, it is characterized in that: described blade (1) high scale specification is 500mm.
CN 201320416280 2013-07-12 2013-07-12 Inner chamfer diameter vernier caliper Active CN203364680U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320416280 CN203364680U (en) 2013-07-12 2013-07-12 Inner chamfer diameter vernier caliper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320416280 CN203364680U (en) 2013-07-12 2013-07-12 Inner chamfer diameter vernier caliper

Publications (1)

Publication Number Publication Date
CN203364680U true CN203364680U (en) 2013-12-25

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ID=49812429

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320416280 Active CN203364680U (en) 2013-07-12 2013-07-12 Inner chamfer diameter vernier caliper

Country Status (1)

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CN (1) CN203364680U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104296635A (en) * 2014-08-08 2015-01-21 安徽米特吉激光科技有限公司 Measuring tool
CN112344834A (en) * 2020-10-13 2021-02-09 洛阳轴承研究所有限公司 Bearing ring chamfer inspection device and bearing ring chamfer inspection method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104296635A (en) * 2014-08-08 2015-01-21 安徽米特吉激光科技有限公司 Measuring tool
CN112344834A (en) * 2020-10-13 2021-02-09 洛阳轴承研究所有限公司 Bearing ring chamfer inspection device and bearing ring chamfer inspection method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20190710

Address after: No. 396 Jintang Highway, Dongli District, Tianjin 300301

Patentee after: Tianjin Steel Tube Manufacturing Co., Ltd.

Address before: No. 396 Jintang Highway, Dongli District, Tianjin 300301

Patentee before: Tianjin Steel Pipe Group Co., Ltd.