CN105716492A - Calipers - Google Patents
Calipers Download PDFInfo
- Publication number
- CN105716492A CN105716492A CN201610125018.3A CN201610125018A CN105716492A CN 105716492 A CN105716492 A CN 105716492A CN 201610125018 A CN201610125018 A CN 201610125018A CN 105716492 A CN105716492 A CN 105716492A
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- CN
- China
- Prior art keywords
- clamp
- dop
- tong arm
- clamping section
- axis
- 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.)
- Pending
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Classifications
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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
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/22—Feeler-pin gauges, e.g. dial gauges
- G01B3/24—Feeler-pin gauges, e.g. dial gauges with open yoke, i.e. calipers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention relates to measuring tools, provides a linear dimension measuring tool, and particularly discloses calipers.The calipers have an inside caliper state and an outside caliper state and comprise a pair of clamp arms symmetrically arranged and hinged together in a crossing mode through a rotation pin, the side, close to the rotation pin, of each clamp arm is a clamping section, and the other side of each clamp arm is a reading section; a clamp head is arranged at the end of the clamping section of each clamp arm, the included angle between each clamp head and the corresponding clamp arm can be adjusted in the plane defined by the clamp arms, the two clamp heads with sharp front ends are symmetrically arranged, and the calipers are in the inside caliper state when the clamp head incline inwards and in the outside caliper state when the clamp heads incline outwards; a reading device used for reflecting inside caliper length and outside caliper length is further arranged on the reading section of each clamp arm; when the clamp head of each clamp arm inclines inwards to the extreme position, the included angle between the axis of the clamp head and the axis of the corresponding clamping section is 12 degrees; when the clamp head of each clamp arm inclines outwards to the extreme position, the included angle between the axis of the clamp head and the axis of the corresponding clamping section is 25 degrees; the front end of each clamp head is conical.
Description
Technical field
This technology relates to measurer, a kind of linear dimension survey tool is provided, especially a kind of clamp, these clamp can use as inside plain calipers when wall-thickness measurement equidimension, can use as bow compass when measuring internal orifice dimension equidimension, it is possible to directly read measurement data.
Background technology
In prior art when measuring the linear dimensions such as the wall thickness of part, internal orifice dimension, groove width, more use inside plain calipers, bow compass carry out subsidiary, after corresponding with the size needing measurement for clamp aperture, need to remove clamp, utilize the linear dimension of other gage measuring clamp opening, testing result is by the impact of reviewer's technical ability, it is difficult to ensures that clamp aperture does not change, is also just difficult to ensure that the precision of measurement.It addition, the common clamp of prior art are single inside plain calipers, bow compass, function singleness, it is impossible to measurement result direct reading, it is impossible to meet and measure requirement direct, effective.
Summary of the invention
The purpose of this technology is to provide a kind of clamp, and these clamp can use as inside plain calipers when wall-thickness measurement equidimension, can use as bow compass when measuring internal orifice dimension equidimension, it is possible to directly read measurement data.
The purpose of this technology is to be achieved through the following technical solutions:
A kind of clamp, including being symmetrical arranged, by a pair tong arm of rotational pin cross-articulation, each tong arm is clamping section in the side of rotational pin, and opposite side is reading section;Clamping section end is provided with dop adjustable with tong arm angle in the plane that a pair tong arm determines, two dops that front end is tip are symmetrical arranged, and are interior card when dop slopes inwardly, and are wild card when dop is outward-dipping;It is additionally provided with the reading plotter for reflecting interior card length and wild card length in reading section;When dop is angled inwardly into extreme position, the angle between dop axis and clamping section axis is 12 °;Dop outward-dipping to extreme position time, the angle between dop axis and clamping section axis is 25 °;The front end of dop is tapered.
This technology provides the benefit that:
During use, determine the state of clamp, i.e. inside plain calipers or bow compass according to measurement target, make span of jaw corresponding with measuring target linear dimension according to common clamp operating specification, directly read measurement result.When interior card length and dop slope inwardly, the distance between the front end of two dops, distance when wild card length and dop are outward-dipping, between the front end of two dops.
As the improvement to this technology, it is additionally provided with the locking device for a pair tong arm can be locked in certain angle in clamping section.
Locking device includes the locking plate offering mounting hole above, and mobile two lock-screws being arranged in mounting hole, a lock-screw is linked by screw thread pair with a tong arm.
Above-mentioned improvement, these clamp unclamp lock-screw when testing can adjust the angle between a pair tong arm flexibly, namely adjusts span of jaw flexibly, when span of jaw is to when coincideing with measurement target linear dimension, this state is locked by locking lock-screw, to ensure the stability of measurement result.
As the further improvement to this technology, dop is rotatably arranged in clamping section end by control screw, is provided with in the both sides, rear end of dop and is angled inwardly into extreme position and the outward-dipping positive stop lug boss to extreme position for limiting dop.
As the further improvement to this technology, reading plotter includes the trisquare offering circular arc waist row hole above, mobile two leads being arranged in waist row hole, a lead and a tong arm connect, and are provided with the graduation mark corresponding respectively to wild card length and Nei Ka length on the two sides of trisquare.
This improvement, the measurement data that dop is most advanced and sophisticated, according to similar triangle theory, is converted to the scale above reading plotter by reading plotter, and the two is mutually corresponding.
As the another kind of improvement to this technology, being further opened with relative groove in two reading section rear ends, groove is for placing the card pin of slide gauge.
The groove for placing slide gauge measurement it is provided with in rear end.After placing slide gauge card pin in groove, card pin can reliably seal with groove and contact, and for using slide gauge measurement to provide essence benchmark, is beneficial to guarantee certainty of measurement, easy to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of clamp
Fig. 2 is the structural representation of a tong arm
Fig. 3 is clamp is schematic diagram during interior card
Fig. 4 is clamp is schematic diagram during wild card.
Detailed description of the invention
Below in conjunction with accompanying drawing, this technology is described further:
Shown in Fig. 1, Fig. 2, a kind of clamp, including being symmetrical arranged, by a pair tong arm 10 of rotational pin 9 cross-articulation, each tong arm 10 is clamping section 11 in the side of rotational pin 9, and opposite side is reading section 12;Clamping section 11 end is provided with dop 2 adjustable with tong arm 10 angle in the plane that a pair tong arm 10 determines, two dops 2 that front end is tip are symmetrical arranged, it is interior card (shown in Figure 3) when dop 2 slopes inwardly, is wild card (shown in Figure 4) when dop 2 is outward-dipping;It is additionally provided with reading plotter in reading section 12.
The thickness of tong arm 10 is certain, and it is 6mm that empirical data chooses the thickness of tong arm 10, and for ensureing the rigidity of tong arm 10, with rotational pin 9 place for boundary, the two ends of tong arm 10 are all equi intensity cantilever.
It is additionally provided with the locking device for a pair tong arm can be locked in certain angle in clamping section.Locking device includes the locking plate 16 offering mounting hole 15 above, and mobile two lock-screws 4 being arranged in mounting hole 15, a lock-screw 4 is linked by screw thread pair with a tong arm 10.
For reducing frictional force when lock-screw 4 moves in mounting hole 15, mounting hole 15 is in circular arc, and the pitch radius of circular arc is the spacing of rotational pin 9 and lock-screw 4.
Dop is rotatably arranged in clamping section end by controlling screw, is separately provided for limiting dop 2 in the both sides, rear end of dop 2 and is angled inwardly into the positive stop lug boss 14 of extreme position and the outward-dipping positive stop lug boss 13 to extreme position.
The effect controlling screw 3 rotates offer rotating shaft for dop 2 on the one hand, also acts as the effect of lock-screw on the other hand, it is possible to be locked on extreme position by dop 2.
When dop 2 slopes inwardly, positive stop lug boss 14 limits the angle between dop 2 axis and clamping section 11 axis as 12 °, and now, these clamp are interior card;When dop is outward-dipping, positive stop lug boss 13 limits the angle between dop 2 axis and clamping section 11 axis as 25 °, and now, these clamp are wild card.
The front end of dop 2 is wedge shaped or taper.
Reading plotter includes the trisquare 18 offering circular arc waist row hole 17 above, move two leads 5 being arranged in waist row hole 17, one lead 5 is connected with a tong arm 10, is provided with the graduation mark 6 corresponding respectively to wild card length and Nei Ka length on the two sides of trisquare 18.
For reducing frictional force when lead 5 moves in mounting hole 17, mounting hole 17 is in circular arc, and the pitch radius of circular arc is the spacing of rotational pin 9 and lead 5.
Trisquare 18 can be always symmetrical about the middle separated time of these clamp, equidistant movement (state of diagram) when two leads are mobile in mounting hole 17, now the center line of the graduation mark 6 of trisquare 18 is " 0 " graduation mark, and note needs to be added the reading on " 0 " graduation mark both sides when reading measurement result.It is of course also possible to only one of which lead is mobile in mounting hole 17, another lead only plays and trisquare 18 is fixed on the effect on tong arm 10, and now " 0 " graduation mark of trisquare 18 is positioned at the side that lead is motionless, can visual reading during note reading measurement result.
Can there be Nei Ka and wild card two states due to these clamp, therefore be all provided with graduation mark on the two sides of trisquare 18 corresponding with Nei Ka and wild card respectively.
Be further opened with relative groove 7 in two reading section 12 rear ends, groove 7 can use slide gauge to carry out card pin (not shown) measured directly for placement.
During use, determine the state of clamp, i.e. inside plain calipers or bow compass according to measurement target, make span of jaw corresponding with measuring target linear dimension according to common clamp operating specification, corresponding graduation mark directly reads measurement result.
This technology provides the benefit that:
Clamp described in this technology, are the multi-functional clamp that can directly measure part arm thickness, internal diameter.The reading plotter of these multi-functional clamp can directly read millimeter, it is also possible to reads with slide gauge and counts more accurately;The available screw that controls of clamping section is adjusted to Nei Ka and wild card, and locking device is for fixing clamp position during reading;Reading plotter is the trisquare reading plotter utilizing the principle of similitude of triangle to make, and fluted can so that vernier caliper reading.
These clamp, it is possible to have Nei Ka and wild card two states, it is possible to direct reading, can meet measurement requirement direct, effective, and easy to use, simple in construction, processing technology is better.
Claims (4)
1. clamp, including being symmetrical arranged, by a pair tong arm of rotational pin cross-articulation, is characterized in that, each tong arm is clamping section in the side of rotational pin, and opposite side is reading section;Clamping section end is provided with dop adjustable with tong arm angle in the plane that a pair tong arm determines, two dops that front end is tip are symmetrical arranged, and are interior card when dop slopes inwardly, and are wild card when dop is outward-dipping;It is additionally provided with the reading plotter for reflecting interior card length and wild card length in reading section;When dop is angled inwardly into extreme position, the angle between dop axis and clamping section axis is 12 °;Dop outward-dipping to extreme position time, the angle between dop axis and clamping section axis is 25 °;The front end of dop is tapered.
2. clamp according to claim 1, is characterized in that, are additionally provided with the locking device for a pair tong arm can be locked in certain angle in clamping section;Locking device includes the locking plate offering mounting hole above, and mobile two lock-screws being arranged in mounting hole, a lock-screw is linked by screw thread pair with a tong arm.
3. clamp according to claim 1, it is characterized in that, reading plotter includes the trisquare offering circular arc waist row hole above, mobile two leads being arranged in waist row hole, one lead and a tong arm connect, and are provided with the graduation mark corresponding respectively to wild card length and Nei Ka length on the two sides of trisquare.
4. clamp according to claim 1, is characterized in that, are further opened with relative groove in two reading section rear ends, and groove is for placing the card pin of slide gauge.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610125018.3A CN105716492A (en) | 2016-03-07 | 2016-03-07 | Calipers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610125018.3A CN105716492A (en) | 2016-03-07 | 2016-03-07 | Calipers |
Publications (1)
Publication Number | Publication Date |
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CN105716492A true CN105716492A (en) | 2016-06-29 |
Family
ID=56157394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201610125018.3A Pending CN105716492A (en) | 2016-03-07 | 2016-03-07 | Calipers |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105698629A (en) * | 2016-03-07 | 2016-06-22 | 南京市宏伟屠宰机械制造有限公司 | Direct reading integrated hermaphrodite caliper |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1178896A (en) * | 1914-11-09 | 1916-04-11 | Franklyn J Wolff | Measuring device. |
CN102095343A (en) * | 2010-11-26 | 2011-06-15 | 力帆实业(集团)股份有限公司 | Multifunctional measurement device |
CN202806078U (en) * | 2012-07-13 | 2013-03-20 | 朱建阳 | Foldable compasses |
CN203224202U (en) * | 2013-05-13 | 2013-10-02 | 任国庆 | Visible direct-reading type caliper |
CN203587002U (en) * | 2013-11-12 | 2014-05-07 | 胡苗 | Calipers for measuring inside and outside diameters of an object |
CN103837067A (en) * | 2014-03-21 | 2014-06-04 | 国家电网公司 | Direct-reading type calipers for measuring ovality of pipeline |
CN105698629A (en) * | 2016-03-07 | 2016-06-22 | 南京市宏伟屠宰机械制造有限公司 | Direct reading integrated hermaphrodite caliper |
-
2016
- 2016-03-07 CN CN201610125018.3A patent/CN105716492A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1178896A (en) * | 1914-11-09 | 1916-04-11 | Franklyn J Wolff | Measuring device. |
CN102095343A (en) * | 2010-11-26 | 2011-06-15 | 力帆实业(集团)股份有限公司 | Multifunctional measurement device |
CN202806078U (en) * | 2012-07-13 | 2013-03-20 | 朱建阳 | Foldable compasses |
CN203224202U (en) * | 2013-05-13 | 2013-10-02 | 任国庆 | Visible direct-reading type caliper |
CN203587002U (en) * | 2013-11-12 | 2014-05-07 | 胡苗 | Calipers for measuring inside and outside diameters of an object |
CN103837067A (en) * | 2014-03-21 | 2014-06-04 | 国家电网公司 | Direct-reading type calipers for measuring ovality of pipeline |
CN105698629A (en) * | 2016-03-07 | 2016-06-22 | 南京市宏伟屠宰机械制造有限公司 | Direct reading integrated hermaphrodite caliper |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105698629A (en) * | 2016-03-07 | 2016-06-22 | 南京市宏伟屠宰机械制造有限公司 | Direct reading integrated hermaphrodite caliper |
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Application publication date: 20160629 |