CN105571423A - Integrated inner and outer caliper - Google Patents
Integrated inner and outer caliper Download PDFInfo
- Publication number
- CN105571423A CN105571423A CN201610125047.XA CN201610125047A CN105571423A CN 105571423 A CN105571423 A CN 105571423A CN 201610125047 A CN201610125047 A CN 201610125047A CN 105571423 A CN105571423 A CN 105571423A
- Authority
- CN
- China
- Prior art keywords
- caliper
- section
- tong arm
- length
- dop
- 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
-
- 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
Abstract
The invention relates to a measuring tool, provides a linear dimension measuring tool and especially relates to an integrated inner and outer caliper. The integrated inner and outer caliper has inner caliper and outer caliper two states, and comprises a pair of caliper arms, which are symmetrically arranged and are in cross hinge through a rotation pin, wherein one section, at one side of the rotation pin, of each caliper arm is a clamping section, and the other section is a reading section. The end portion of each clamping section is provided with a caliper head, the included angle between which and the caliper arm is adjustable in the plane defined by the pair of caliper arms; the two caliper heads, the front ends of which are sharp ends, are symmetrically arranged; when the caliper heads tilt inwardly, the caliper is an inner caliper, and when the caliper heads tilt outwardly, the caliper is an outer caliper; the reading section is provided with a reading device for reflecting the length of the inner caliper and the length of the outer caliper; the clamping section is further provided with a locking device for locking the pair of caliper arms within a certain included angle; and the reading device comprises a bent ruler provided with a circular arc kidney-shaped hole, and two guide columns movably arranged in the kidney-shaped hole, wherein one guide column is connected with one caliper arm, and the two surfaces of the bent ruler are provided with scale marks corresponding to the length of the inner caliper and the length of the outer caliper respectively.
Description
Technical field
This technology relates to measurer, a kind of linear dimension survey instrument is provided, especially a kind of integrated hermaphrodite caliper, this integrated hermaphrodite caliper can use as internal calliper when wall-thickness measurement equidimension, can use as external callipers when measuring internal orifice dimension equidimension, and directly can read measurement data.
Background technology
In prior art when measuring the linear dimension such as wall thickness, internal orifice dimension, groove width of part, more use internal calliper, external callipers carry out subsidiary, after clamp aperture is corresponding with the size needing to measure, clamp are needed to shift out, utilize the linear dimension of other gage measuring clamp opening, testing result, by the impact of reviewer's technical ability, is difficult to ensure that clamp aperture does not change, is also just difficult to the precision ensureing to measure.In addition, the common clamp of prior art are single internal calliper, external callipers, function singleness, to the direct reading of measurement result, can not can not meet and measure direct, effective requirement.
Summary of the invention
The object of this technology is to provide a kind of integrated hermaphrodite caliper, and this integrated hermaphrodite caliper can use as internal calliper when wall-thickness measurement equidimension, can use as external callipers when measuring internal orifice dimension equidimension, and directly can read measurement data.
The object of this technology is achieved through the following technical solutions:
A kind of integrated hermaphrodite caliper, comprise be symmetrical arranged, by a pair tong arm of rotational pin cross-articulation, each tong arm is the section of holding in the side of rotational pin, and opposite side is reading section; Be provided with dop adjustable with tong arm angle in the plane of a pair tong arm decision in the section of holding end, front end is that two dops of tip are symmetrical arranged, and being interior card when dop slopes inwardly, is wild card when dop is outward-dipping; The reading device for reflecting interior card length and wild card length is also provided with in reading section; The locking device for a pair tong arm being locked in certain angle is also provided with in the section of holding; Offer the trisquare of circular arc waist perform hole above reading device comprises, mobile two guideposts be arranged in waist perform hole, a guidepost is connected with a tong arm, is provided with the scale mark corresponding respectively to wild card length and Nei Ka length on the two sides of trisquare.
The beneficial effect of this technology is:
During use, according to the state of measurement target determination clamp, i.e. internal calliper or external callipers, makes span of jaw corresponding with measurement target linear dimension according to common clamp operating specification, directly reads measurement result.When interior card length and dop slope inwardly, the distance between the front end of two dops, wild card length and dop outward-dipping time, the distance between the front end of two dops.
As the improvement to this technology, offer the locking plate of mounting hole above locking device comprises, mobile two lock-screws be arranged in mounting hole, a lock-screw is linked by screw thread pair with a tong arm.
Above-mentioned improvement, this integrated hermaphrodite caliper unclamps lock-screw when testing can adjust 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 locks, to ensure the stability of measurement result by locking lock-screw.
As the further improvement to this technology, dop is arranged on the section of holding end rotationally by controlling screw, is provided with slopes inwardly to extreme position and the outward-dipping positive stop lug boss to extreme position for limiting dop in the both sides, rear end of dop.
When dop slopes inwardly to extreme position, the angle between dop axis and the section of holding axis is 12 °; Dop outward-dipping to extreme position time, the angle between dop axis and the section of holding axis is 25 °.
The front end of dop is wedge shape or taper.
The measurement data at dop tip, according to similar triangle theory, is converted to the scale above reading device by reading device, and the two is mutually corresponding.
Improve as to the another kind of this technology, also offer relative groove in two reading section rear ends, groove is for placing the card pin of vernier caliper.
The groove carrying out measuring for placing vernier caliper is provided with in rear end.After placing vernier caliper card pin in groove, card pin can contact with groove positiver sealing, and carrying out measurement for using vernier caliper provides smart benchmark, is beneficial to guarantee measuring accuracy, easy to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of integrated hermaphrodite caliper
Fig. 2 is the structural representation of a tong arm
Schematic diagram during Fig. 3 to be integrated hermaphrodite caliper be interior card
The schematic diagram that Fig. 4 is integrated hermaphrodite caliper when being wild card.
Embodiment
Below in conjunction with accompanying drawing, this technology is described further:
Shown in Fig. 1, Fig. 2, a kind of integrated hermaphrodite caliper, comprise be symmetrical arranged, by a pair tong arm 10 of rotational pin 9 cross-articulation, each tong arm 10 is the section of holding 11 in the side of rotational pin 9, and opposite side is reading section 12; Dop 2 adjustable with tong arm 10 angle in the plane of a pair tong arm 10 decision is provided with in the section of holding 11 end, front end is that two dops 2 of tip are symmetrical arranged, being interior card (shown in Figure 3) when dop 2 slopes inwardly, is wild card (shown in Figure 4) when dop 2 is outward-dipping; Also reading device is provided with in reading section 12.
The thickness of tong arm 10 is certain, and the thickness that empirical data chooses tong arm 10 is 6mm, 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.
The locking device for a pair tong arm being locked in certain angle is also provided with in the section of holding.Offer the locking plate 16 of mounting hole 15 above locking device comprises, mobile two lock-screws, 4, lock-screw 4 be arranged in mounting hole 15 is linked by screw thread pair with a tong arm 10.
For reducing friction 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 arranged on the section of holding end rotationally by controlling screw, is respectively arranged with slopes inwardly to the positive stop lug boss 14 of extreme position and the outward-dipping positive stop lug boss 13 to extreme position for limiting dop 2 in the both sides, rear end of dop 2.
The effect controlling screw 3 provides rotating shaft for dop 2 rotates on the one hand, also plays the effect of lock-screw on the other hand, dop 2 can be locked on extreme position.
When dop 2 slopes inwardly, positive stop lug boss 14 angle limited between dop 2 axis and the section of holding 11 axis is 12 °, and now, this integrated hermaphrodite caliper is interior card; When dop is outward-dipping, positive stop lug boss 13 angle limited between dop 2 axis and the section of holding 11 axis is 25 °, and now, this integrated hermaphrodite caliper is wild card.
The front end of dop 2 is wedge shape or taper.
The trisquare 18 of circular arc waist perform hole 17 is offered above reading device comprises, move two guideposts 5 being arranged in waist perform hole 17, a guidepost 5 is connected with a tong arm 10, is provided with the scale mark 6 corresponding respectively to wild card length and Nei Ka length on the two sides of trisquare 18.
For reducing friction force when guidepost 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 guidepost 5.
Trisquare 18 can be always symmetrical about separated time in this integrated hermaphrodite caliper, equidistant movement (illustrated state) when two guideposts are mobile in mounting hole 17, now the center line of the scale mark 6 of trisquare 18 is " 0 " scale mark, when note reads measurement result needs the reading on " 0 " scale mark both sides to be added.Certainly, a guidepost also can be only had mobile in mounting hole 17, another guidepost only plays the effect be fixed on by trisquare 18 on tong arm 10, and now " 0 " scale mark of trisquare 18 is positioned at the motionless side of guidepost, can visual reading when note reads measurement result.
Because this integrated hermaphrodite caliper can have Nei Ka and wild card two states, therefore be all provided with scale mark on the two sides of trisquare 18 corresponding with Nei Ka and wild card respectively.
Also offer relative groove 7 in two reading section 12 rear ends, groove 7 can use vernier caliper to carry out the card pin (not shown) directly measured for placing.
During use, according to the state of measurement target determination clamp, i.e. internal calliper or external callipers, makes span of jaw corresponding with measurement target linear dimension according to common clamp operating specification, corresponding scale mark directly reads measurement result.
The beneficial effect of this technology is:
Integrated hermaphrodite caliper described in this technology is the multi-functional clamp directly can measuring part arm thickness, internal diameter.The reading device of these multi-functional clamp directly can read millimeter, also can read number more accurately with vernier caliper; The available control screw of the section of holding is adjusted to Nei Ka and wild card, and locking device is used for clamp position during fixing reading; Reading device is the trisquare reading device utilizing the leg-of-mutton principle of similitude to make, and fluted can so that vernier caliper reading.
This integrated hermaphrodite caliper, can have Nei Ka and wild card two states, can direct reading, can meet measure directly, effective requirement, easy to use, structure is simple, and processing technology is better.
Claims (2)
1. an integrated hermaphrodite caliper, comprise be symmetrical arranged, by a pair tong arm of rotational pin cross-articulation, it is characterized in that, each tong arm is the section of holding in the side of rotational pin, and opposite side is reading section; Be provided with dop adjustable with tong arm angle in the plane of a pair tong arm decision in the section of holding end, front end is that two dops of tip are symmetrical arranged, and being interior card when dop slopes inwardly, is wild card when dop is outward-dipping; The reading device for reflecting interior card length and wild card length is also provided with in reading section; The trisquare of circular arc waist perform hole is offered on the section of the holding locking device reading device be also provided with for a pair tong arm being locked in certain angle comprises, mobile two guideposts be arranged in waist perform hole, a guidepost is connected with a tong arm, is provided with the scale mark corresponding respectively to wild card length and Nei Ka length on the two sides of trisquare.
2. integrated hermaphrodite caliper according to claim 1, is characterized in that, also offers relative groove in two reading section rear ends, and groove is for placing the card pin of vernier caliper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610125047.XA CN105571423A (en) | 2016-03-07 | 2016-03-07 | Integrated inner and outer caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610125047.XA CN105571423A (en) | 2016-03-07 | 2016-03-07 | Integrated inner and outer caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105571423A true CN105571423A (en) | 2016-05-11 |
Family
ID=55881831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610125047.XA Pending CN105571423A (en) | 2016-03-07 | 2016-03-07 | Integrated inner and outer caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105571423A (en) |
Citations (6)
| 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 |
-
2016
- 2016-03-07 CN CN201610125047.XA patent/CN105571423A/en active Pending
Patent Citations (6)
| 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 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160511 |
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| WD01 | Invention patent application deemed withdrawn after publication |