CN204514250U - A kind of countersunk head angle gauge of counter sink - Google Patents

A kind of countersunk head angle gauge of counter sink Download PDF

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Publication number
CN204514250U
CN204514250U CN201520192993.7U CN201520192993U CN204514250U CN 204514250 U CN204514250 U CN 204514250U CN 201520192993 U CN201520192993 U CN 201520192993U CN 204514250 U CN204514250 U CN 204514250U
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China
Prior art keywords
gauge
head
sleeve
chamber
counter sink
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CN201520192993.7U
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Chinese (zh)
Inventor
桂林景
胡隆伟
王川
刘如刚
程艳红
徐昊
刘智昂
郭双双
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Aerospace Precision Products Co Ltd
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Aerospace Precision Products Co Ltd
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Priority to CN201520192993.7U priority Critical patent/CN204514250U/en
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Abstract

The invention provides a kind of countersunk head angle gauge of counter sink, and countersunk head angle gauge comprises dial gauge, sleeve and gauge gauge head; Described sleeve comprises the chamber of hollow, and this chamber is sleeve chamber; Described gauge gauge head is placed in the bottom in described sleeve chamber and is slidably matched with it, stretching motion is made in the bottom surface of the bottom relative sleeve of this gauge gauge head, when the bottom surface of described gauge gauge head and the bottom surface of described sleeve are in same level, the measuring head of described dial gauge abuts with the top of described gauge gauge head and this measuring head is in compressive state.The cooperation of the dial gauge described in the invention, sleeve and gauge gauge head is set up, measurement length can be converted into by directly measuring countersunk head angle, and then accelerated by the efficiency using this countersunk head angle gauge to measure countersunk head angle, also improve its measuring accuracy simultaneously.

Description

A kind of countersunk head angle gauge of counter sink
Technical field
The invention belongs to the countersunk head measurement of angle field of counter sink, especially relates to a kind of countersunk head angle gauge of counter sink.
Background technology
The product having a large class in Aero-Space securing member is countersunk head class securing member, picture dormant bolt, sunk head rivet etc., these securing members need to do corresponding installation and detection experiment in production and the course of receiving, the installing plate and the test tool that use a large amount of band counter sinks is all needed in use procedure and process of the test, whether qualified the size (especially counter sink angle) of counter sink is directly has influence on countersunk head class securing member result of use and testing result, so the detection of counter sink class accessory size is extremely important.
The production of counter sink part and measurement difficult point are mainly the measurement of countersunk head angle, because its space is little, and are not easy to find measuring basis, cannot be measured by universal measurement measurer to it.Because cutter can wear and tear during production, countersunk head angle also can change, and measures just seem by being necessity so find out a kind of effective measuring method and instrument it.
At present, under the prerequisite not destroying counter sink, also more not effective testing tool and method detect the counter sink portion size of counter sink.Although use three-coordinates measuring machine can measure counter sink size, but its measuring accuracy and measurement sampling spot quantity are directly proportional, want measurement result accurately to need to get a large amount of measurement points, its measuring method is comparatively loaded down with trivial details, and efficiency is low, be also not suitable for that workshop and erecting yard are in enormous quantities, the measurement requirement of dirigibility.
Summary of the invention
In view of this, the invention is intended to the countersunk head angle gauge proposing a kind of counter sink, and to solve the high precision of counter sink measurement of angle, its gauge also will meet the simple and easy and requirement easy to carry of operation.
For achieving the above object, the technical scheme of the invention is achieved in that
A countersunk head angle gauge for counter sink, it comprises dial gauge, sleeve and gauge gauge head;
Described sleeve comprises the chamber of hollow, and this chamber is sleeve chamber;
Described gauge gauge head is placed in the bottom in described sleeve chamber and is slidably matched with it, stretching motion is made in the bottom surface of the bottom relative sleeve of this gauge gauge head, when the bottom surface of described gauge gauge head and the bottom surface of described sleeve are in same level, the measuring head of described dial gauge abuts with the top of described gauge gauge head and this measuring head is in compressive state.
Further, also comprise positioning screw, the head outer wall of described positioning screw is surrounded with screw thread, and the bottom of described gauge gauge head has the hole that is located by connecting, to be located by connecting described in the head of described positioning screw screws in hole and to be threaded with it, and positioning screw and gauge gauge head concentrically line.
Further, the sleeve chamber of described sleeve is formed by running through the shoulder hole that sleeve offers, the first half aperture in described sleeve chamber is greater than the latter half aperture in its sleeve chamber, the longitudinal cross-section of described gauge gauge head is just T-shaped, the top of this gauge gauge head is placed in the first half in described sleeve chamber, and the hole wall of the bottom outer wall of described gauge gauge head and the latter half in described sleeve chamber is fitted and is slidably matched.
Further, described gauge gauge head is superposed by two cylinders and forms, the diameter of one of them cylinder is greater than the diameter of another cylinder, and larger-diameter cylinder is the top of described gauge gauge head, another cylinder is the bottom of gauge gauge head, in the first half that the top of described gauge gauge head is placed in described sleeve chamber and its diameter is greater than the latter half aperture in described sleeve chamber.
Further, the outer wall of described sleeve has a fixed orifice, this fixed orifice is through hole, and the sounding rod of described dial gauge is placed in described sleeve chamber, and screw in trip bolt by described fixed orifice, described sounding rod is fixed by this fastening screw and described sleeve.
Further, described sleeve outer wall comprises Part I and the Part II of concentrically line, the bottom of described Part I is connected with described Part II, the longitudinal cross-section of Part I is rectangle, the longitudinal cross-section of Part II is trapezoidal, a limit of the longitudinal cross-section of described Part I overlaps with the upper base of the longitudinal cross-section of described Part II, and the upper base length of the longitudinal cross-section of this Part II is less than its length of going to the bottom, and Part II is the bottom of described sleeve.
Further, the sleeve chamber center line of described sleeve and the centerline collineation of described gauge gauge head.
Relative to prior art, the countersunk head angle gauge of a kind of counter sink described in the invention has following advantage:
(1) cooperation of the dial gauge described in the invention, sleeve and gauge gauge head is set up, measurement length can be converted into by directly measuring countersunk head angle, and then accelerated by the efficiency using this countersunk head angle gauge to measure countersunk head angle, also improve its measuring accuracy simultaneously.
(2) matching relationship of the positioning screw described in the invention and described gauge gauge head, the stability of this gauge when going deep in counter sink and carry out countersunk head measurement of angle to it can be increased, so this positioning screw serves a guiding and positioning action to whole gauge.
(3) sleeve chamber is formed by shoulder hole, and gauge gauge head coordinates with this shoulder hole and sets up, so the shape of this shoulder hole plays the effect of a spacing and guiding to gauge gauge head, makes this gauge gauge head in use can not whole landing place sleeve chamber.
Accompanying drawing explanation
The accompanying drawing of the part of formation the invention is used to provide the further understanding to the invention, and the schematic description and description of the invention, for explaining the invention, does not form the improper restriction to the invention.In the accompanying drawings:
Fig. 1 is the countersunk head angle gauge structural representation described in the invention embodiment;
Fig. 2 is the position relationship schematic diagram of countersunk head angle gauge in the invention examples measure process and counter sink;
Fig. 3 is the counter sink parameter schematic diagram described in the invention embodiment;
Fig. 4 is the cut-open view of the gauge side head described in the invention embodiment;
Fig. 5 is the cut-open view of the positioning screw described in the invention embodiment;
Fig. 6 is the cut-open view of the sleeve described in the invention embodiment.
Description of reference numerals:
1-gauge gauge head, the top of 11-gauge gauge head, the bottom of 12-gauge side head, 121-is located by connecting hole, 2-sleeve, 21-sleeve chamber, 22-fixed orifice, 3-positioning screw, the head of 31-positioning screw, 4-part, the apical pore of 51-counter sink, the bottom outlet of 52-counter sink, 6-dial gauge, 61-measuring head, 7-trip bolt.
Embodiment
It should be noted that, when not conflicting, the embodiment in the invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the invention in detail in conjunction with the embodiments.
A countersunk head angle gauge for counter sink, it comprises dial gauge 6, sleeve 2, positioning screw 3 and gauge gauge head 1;
Described sleeve 2 comprises the chamber of hollow, and this chamber is sleeve chamber 21;
Described gauge gauge head 1 is placed in the bottom in described sleeve chamber 21 and is slidably matched with it, stretching motion is made in the bottom surface of bottom 12 relative sleeve 2 of this gauge gauge head, when the bottom surface of described gauge gauge head 1 and the bottom surface of described sleeve 2 are in same level, the measuring head 61 of described dial gauge 6 abuts with the top 11 of described gauge gauge head and this measuring head 61 is in compressive state;
The outer wall of described sleeve 2 has a fixed orifice 22, this fixed orifice 22 is through hole, and the sounding rod of described dial gauge 6 is placed in described sleeve chamber 21, screws in trip bolt 7 by described fixed orifice 22, and described sounding rod is fixed by this trip bolt 7 and described sleeve 2;
The sleeve chamber 21 of described sleeve 2 is formed by running through the shoulder hole that sleeve 2 offers, the first half aperture in described sleeve chamber 21 is greater than the latter half aperture in its sleeve chamber 21, described gauge gauge head 1 is superposed by two cylinders and forms, the diameter of one of them cylinder is greater than the diameter of another cylinder, and larger-diameter cylinder is the top 11 of described gauge gauge head, another cylinder is the bottom 12 of gauge gauge head, in the first half that the top 11 of described gauge gauge head is placed in described sleeve chamber 21 and its diameter is greater than the latter half aperture in described sleeve chamber 21, the hole wall of bottom 12 outer wall of described gauge gauge head and the latter half in described sleeve chamber 21 is fitted and is slidably matched,
Described sleeve 2 outer wall comprises Part I and the Part II of concentrically line, the bottom of described Part I is connected with described Part II, the longitudinal cross-section of Part I is rectangle, the longitudinal cross-section of Part II is trapezoidal, a limit of the longitudinal cross-section of described Part I overlaps with the upper base of the longitudinal cross-section of described Part II, and the upper base length of the longitudinal cross-section of this Part II is less than its length of going to the bottom, Part II is the bottom of described sleeve 2, more steady when the design of said structure can ensure to be in a plane bottom sleeve 2;
Head 31 outer wall of described positioning screw is surrounded with screw thread, the bottom 12 of described gauge gauge head has the hole 121 that is located by connecting, to be located by connecting described in the head 31 of described positioning screw screws in hole 121 and to be threaded with it, and positioning screw 3 and gauge gauge head 1 concentrically line.
Counter sink comprises apical pore 51 and bottom outlet 52, the aperture D of described bottom outlet 52 is all equal, the aperture of described apical pore 51 is increased gradually by the direction of bottom outlet 52 to apical pore 51, the countersunk head angle that needs are measured is the angle θ of the outside scattering of apical pore 51 hole wall, and the outer of apical pore 51 is got the point of two its center line symmetries relative, the length between described 2 is D k;
The method utilizing this countersunk head angle gauge to measure countersunk head angle θ is:
Step one, first gauge gauge head 1 is loaded in sleeve 2, after dial gauge 6 loaded sleeve 2 and its measuring head 61 worked good with the top 11 of gauge gauge head, then trip bolt 7 is utilized the sounding rod of dial gauge 6 and sleeve 2 to be fixed, afterwards whole countersunk head angle gauge is vertically placed in a plane and carries out school zero, school zero process using the bottom surface of sleeve 2 as measurement datum, the top 11 of gauge gauge head now abuts with the measuring head 61 of dial gauge 6 and is compressed by the measuring head 61 of dial gauge 6, under this state, the registration of dial gauge 6 is adjusted to zero graduation;
Step 2, by the gauge in common measurement aperture by DK numerical measuring on the bottom outlet 52 aperture D of counter sink and the outer of apical pore 51 out;
Step 3, select the positioning screw 3 that bar footpath is corresponding with the bottom outlet 52 aperture D of counter sink, the head 31 of this positioning screw is screwed in gauge gauge head 1, and positioning screw 3 is contacted with the hole wall of the bottom outlet 52 of counter sink, and when measuring, the bottom 12 of gauge gauge head is inserted in the apical pore 51 of counter sink to be measured, now namely positioning screw 3 penetrates in the bottom outlet 52 of counter sink, compress gauge and the part 4 having counter sink, positioning screw 3 is utilized to be fitted with apical pore 51 hole wall of counter sink in the bottom 12 of gauge gauge head, bottom 12 diameter of gauge gauge head so is now d, displayed value simultaneously on dial gauge 6 is tested insertion depth h,
Step 4, utilizes geometric relationship formula: can worthwhile go out countersunk head angle θ: θ = 2 arctan D k - d 2 * h .
On above-mentioned dial gauge 6, displayed value is tested insertion depth h, also can, according to geometric relationship, utilize geometrical principle above directly can calculate corresponding counter sink countersunk head angle θ.Also countersunk head angle gauge can be designed to electronic digital display type, the computation process of this angle is solidificated in the chip inside gauge, during measurement, gauge directly can be converted into countersunk head angle θ according to the insertion depth h measured in gauge, and shows on digital display dial plate.
Here explanation is needed, select needs and the counterbore of gauge gauge head 1 coordinate, when gauge gauge head 1 be obviously greater than counterbore apical pore 51 or be less than counterbore bottom outlet 52 time, then do not meet selection standard, so need to change the gauge gauge head 1 coordinated with the counterbore that need measure, and gauge gauge head 1 coordinates with sleeve chamber 21 and sets up, so when needs change gauge gauge head 1 time, whole sleeve 2 therewith must be changed, in sum, sleeve 2 and gauge gauge head 1 are matching used.
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; within all spirit in the invention and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the invention.

Claims (6)

1. a countersunk head angle gauge for counter sink, is characterized in that: comprise dial gauge (6), sleeve (2) and gauge gauge head (1);
Described sleeve (2) comprises the chamber of hollow, and this chamber is sleeve chamber (21);
Described gauge gauge head (1) is placed in the bottom of described sleeve chamber (21) and is slidably matched with it, stretching motion is made in the bottom surface of bottom (12) relative sleeve (2) of this gauge gauge head, when the bottom surface of described gauge gauge head (1) and the bottom surface of described sleeve (2) are in same level, the measuring head (61) of described dial gauge (6) abuts with the top (11) of described gauge gauge head and this measuring head (61) is in compressive state.
2. the countersunk head angle gauge of a kind of counter sink according to claim 1, it is characterized in that: also comprise positioning screw (3), head (31) outer wall of described positioning screw is surrounded with screw thread, the bottom (12) of described gauge gauge head has the hole that is located by connecting (121), to be located by connecting described in the head (31) of described positioning screw screws in hole (121) and to be threaded with it, and positioning screw (3) and gauge gauge head (1) concentrically line.
3. the countersunk head angle gauge of a kind of counter sink according to claim 1, it is characterized in that: the sleeve chamber (21) of described sleeve (2) is formed by running through the shoulder hole that sleeve (2) offers, the first half aperture of described sleeve chamber (21) is greater than the latter half aperture in its sleeve chamber (21), the longitudinal cross-section of described gauge gauge head (1) is just T-shaped, the top (11) of this gauge gauge head is placed in the first half of described sleeve chamber (21), the hole wall of bottom (12) outer wall of described gauge gauge head and the latter half in described sleeve chamber (21) is fitted and is slidably matched.
4. the countersunk head angle gauge of a kind of counter sink according to claim 1, it is characterized in that: described gauge gauge head (1) is superposed by two cylinders and forms, the diameter of one of them cylinder is greater than the diameter of another cylinder, and larger-diameter cylinder is the top (11) of described gauge gauge head, another cylinder is the bottom (12) of gauge gauge head, in the first half that the top (11) of described gauge gauge head is placed in described sleeve chamber (21) and its diameter is greater than the latter half aperture of described sleeve chamber (21).
5. the countersunk head angle gauge of a kind of counter sink according to claim 1, it is characterized in that: the outer wall of described sleeve (2) has a fixed orifice (22), this fixed orifice (22) is through hole, the sounding rod of described dial gauge (6) is placed in described sleeve chamber (21), screw in trip bolt (7) by described fixed orifice (22), described sounding rod is fixed by this fastening screw (7) and described sleeve (2).
6. the countersunk head angle gauge of a kind of counter sink according to claim 1, it is characterized in that: described sleeve (2) outer wall comprises Part I and the Part II of concentrically line, the bottom of described Part I is connected with described Part II, the longitudinal cross-section of Part I is rectangle, the longitudinal cross-section of Part II is trapezoidal, a limit of the longitudinal cross-section of described Part I overlaps with the upper base of the longitudinal cross-section of described Part II, and the upper base length of the longitudinal cross-section of this Part II is less than its length of going to the bottom, Part II is the bottom of described sleeve (2).
CN201520192993.7U 2015-04-01 2015-04-01 A kind of countersunk head angle gauge of counter sink Active CN204514250U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520192993.7U CN204514250U (en) 2015-04-01 2015-04-01 A kind of countersunk head angle gauge of counter sink

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Application Number Priority Date Filing Date Title
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Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104713458A (en) * 2015-04-01 2015-06-17 航天精工股份有限公司 Countersunk head angle gauge for counterbore and measurement method of countersunk head angle gauge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104713458A (en) * 2015-04-01 2015-06-17 航天精工股份有限公司 Countersunk head angle gauge for counterbore and measurement method of countersunk head angle gauge
CN104713458B (en) * 2015-04-01 2018-07-10 航天精工股份有限公司 A kind of method for measuring countersunk head angle

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