CN105841582A

CN105841582A - Multifunctional calipers

Info

Publication number: CN105841582A
Application number: CN201610376863.8A
Authority: CN
Inventors: 不公告发明人
Original assignee: ENERGY EFFICIENCY TECHNOLOGY Co Ltd
Current assignee: ENERGY EFFICIENCY TECHNOLOGY Co Ltd
Priority date: 2016-06-01
Filing date: 2016-06-01
Publication date: 2016-08-10

Abstract

The invention provides a linear size measuring tool, especially multifunctional calipers and belongs to measuring tools. The calipers include an inside-calipers state and an outside-calipers state; the calipers comprise a pair of caliper arms, the two caliper arms are arranged symmetrically and are hinged to each other in an intersected manner via a rotational pin, the side, of the rotational pin, of each caliper arm includes a clamping segment, and the other side of the caliper arm includes a reading segment; the end portion of each clamping segment is provided with a clamping head, the included angle between the clamping head and the caliper arm in a plane defined by the pair of caliper arms can be adjusted, two clamping heads whose front ends include tips respectively are arranged symmetrically, when the clamping heads incline inwardly, the calipers serve as inside calipers, and when the clamping heads incline outwardly, the calipers serve as outside calipers; the reading segments are provided with a reading device which reflects the lengths of the inside calipers and the outside calipers; when the clamping heads incline inwardly/outwardly to limit positions, the included angle between the axis of the clamping heads and the axis of the clamping segments is 12/25 degree; the rear end of the two reading segments are provided with grooves opposite to each other, and grooves are used to accommodate clamping pins of a vernier caliper.

Description

A kind of multi-functional clamp

Technical field

This technology relates to measurer, it is provided that a kind of linear dimension survey tool, a kind of multi-functional clamp, this is multi-functional Clamp can use as inside plain calipers when wall-thickness measurement equidimension, can make as bow compass when measuring internal orifice dimension equidimension With, it is possible to directly read measurement data.

Background technology

In prior art when measuring the linear dimension such as the wall thickness of part, internal orifice dimension, groove width, more use inside plain calipers, outer Clamp carry out subsidiary, after corresponding with the size needing measurement for clamp aperture, need to remove clamp, utilize other measurer Measuring the linear dimension of clamp opening, testing result is affected by reviewer's technical ability, it is difficult to ensure that clamp aperture does not changes Become, be the most 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 list One, it is impossible to reading direct to measurement result, 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 multi-functional clamp, and these multi-functional clamp can be made when wall-thickness measurement equidimension Use for inside plain calipers, 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 multi-functional clamp, including being symmetrical arranged, by a pair tong arm of rotational pin cross-articulation, each tong arm is at rotational pin Side be clamping section, opposite side is reading section；It is provided with in the plane of a pair tong arm decision and tong arm in clamping section end The adjustable dop of angle, front end is that two dops of tip are symmetrical arranged, and is interior card when dop slopes inwardly, and dop is outside It it is wild card during inclination；It is additionally provided with for reflecting interior card length and the reading plotter of wild card length in reading section；Dop is lean-in Time tiltedly to extreme position, the angle between dop axis and clamping section axis is 12 °；Dop outward-dipping to extreme position time, card Angle between head axis and clamping section axis is 25 °；Being further opened with relative groove in two reading section rear ends, groove is used for placing The card pin of slide measure.

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 according to common clamp operating specification Span of jaw is corresponding with measuring target linear dimension, directly reads measurement result.Interior card length is time i.e. dop slopes inwardly, and two Distance between the front end of individual dop, wild card length is time i.e. dop is outward-dipping, the distance between the front end of two dops.

As the improvement to this technology, it is additionally provided with the lock for a pair tong arm can be locked in certain angle in clamping section Determine device.

Locking device includes the locking plate offering mounting hole above, mobile two locking screws being arranged in mounting hole Nail, a lock-screw is linked by screw thread pair with a tong arm.

Above-mentioned improvement, these multi-functional clamp unclamp the folder that lock-screw can be adjusted flexibly between a pair tong arm when testing Angle, is i.e. adjusted flexibly span of jaw, when span of jaw is to when coincideing with measurement target linear dimension, and locking lock-screw is by this shape State locks, to ensure the stability of measurement result.

As the further improvement to this technology, dop is rotatably arranged in clamping section end by controlling screw, The both sides, rear end of dop are provided with and are angled inwardly into extreme position and outward-dipping spacing to extreme position for limiting dop Boss.

The front end of dop is wedge shaped or taper.

As the further improvement to this technology, reading plotter includes the trisquare offering circular arc waist row hole above, moves Dynamic two leads being arranged in waist row hole, a lead and a tong arm connect, and are provided with on the two sides of trisquare respectively Corresponding to wild card length and the graduation mark of Nei Ka length.

This improvement, the measurement data that dop is most advanced and sophisticated, according to similar triangle theory, is converted to reading dress by reading plotter Putting scale above, the two is the most corresponding.

It is provided with in rear end for placing the groove that slide measure measures.After placing slide measure card pin in groove, Card pin can reliably seal with groove and contact, and for using slide measure to measure offer essence benchmark, is beneficial to ensure certainty of measurement, Easy to use.

Accompanying drawing explanation

Fig. 1 is the structural representation of multi-functional clamp..

Fig. 2 is the structural representation of a tong arm.

Fig. 3 be multi-functional clamp be interior card time schematic diagram.

Fig. 4 be multi-functional clamp be schematic diagram during wild card.

Detailed description of the invention

Below in conjunction with the accompanying drawings, this technology is described further:

Seeing shown in Fig. 1, Fig. 2, a kind of multi-functional clamp, including being symmetrical arranged, by a pair tong arm of rotational pin 9 cross-articulation 10, each tong arm 10 is clamping section 11 in the side of rotational pin 9, and opposite side is reading section 12；It is provided with in clamping section 11 end With the tong arm 10 adjustable dop of angle 2 in the plane of a pair tong arm 10 decision, front end is that two dops 2 of tip are symmetrical Arrange, be interior card (shown in Figure 3) when dop 2 slopes inwardly, be wild card (shown in Figure 4) when dop 2 is outward-dipping；? Reading section 12 is additionally provided with reading plotter.

The thickness of tong arm 10 is certain, and it is 6mm that empirical data chooses the thickness of tong arm 10, for ensureing the rigidity of tong arm 10, with Being boundary at rotational pin 9, 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 Offer the locking plate 16 of mounting hole 15, mobile two lock-screws 4 being arranged in mounting hole 15, a lock-screw above 4 are linked by screw thread pair with a tong arm 10.

For reduce lock-screw 4 move in mounting hole 15 time frictional force, mounting hole 15 in circular arc, the pitch circle of circular arc Radius is the spacing of rotational pin 9 and lock-screw 4.

Dop is rotatably arranged in clamping section end by controlling screw, is respectively arranged with in the both sides, rear end of dop 2 It 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 for limiting dop 2.

On the one hand the effect controlling screw 3 rotates offer rotating shaft for dop 2, on the other hand also acts as the work of lock-screw With, dop 2 can be locked on extreme position.

When dop 2 slopes inwardly, positive stop lug boss 14 limits the angle between dop 2 axis and clamping section 11 axis as 12 °, this Time, these multi-functional clamp are interior card；When dop is outward-dipping, positive stop lug boss 13 limits between dop 2 axis and clamping section 11 axis Angle be 25 °, now, these multi-functional clamp are wild card.

The front end of dop 2 is wedge shaped or taper.

Reading plotter includes the trisquare 18 offering above circular arc waist row hole 17, mobile is arranged in waist row hole the two of 17 Individual lead 5, a lead 5 is connected with a tong arm 10, is provided with on the two sides of trisquare 18 and corresponds respectively to wild card length Graduation mark 6 with interior card length.

For reducing frictional force when lead 5 moves in mounting hole 17, mounting hole 17 is in circular arc, and the pitch circle of circular arc is partly Footpath is the spacing of rotational pin 9 and lead 5.

Trisquare 18 can be always about the middle separated time symmetry of these multi-functional clamp, and two leads move in mounting hole 17 Time equidistant movement (state of diagram), now the center line of the graduation mark 6 of trisquare 18 is " 0 " graduation mark, note read measurement result time Need to be added the reading on " 0 " graduation mark both sides.It is of course also possible to only one of which lead moves in mounting hole 17, another Lead only plays the effect on tong arm 10 that is fixed on by trisquare 18, and now to be positioned at lead motionless for " 0 " graduation mark of trisquare 18 Side, note read measurement result time can visual reading.

Owing to these multi-functional clamp can have Nei Ka and wild card two states, therefore all it is provided with scale on the two sides of trisquare 18 Line is 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 measure to carry out for placement Card pin (not shown) measured directly.

During use, determine the state of clamp, i.e. inside plain calipers or bow compass according to measurement target, use rule according to common clamp Model makes span of jaw corresponding with measuring target linear dimension, directly reads measurement result on corresponding graduation mark.

This technology provides the benefit that:

Multi-functional clamp described in this technology, are the multi-functional clamp that can directly measure part arm thickness, internal diameter.This is multi-functional The reading plotter of clamp can directly read millimeter, it is also possible to reads with slide measure and counts more accurately；The available control of clamping section Screw-making is adjusted to Nei Ka and wild card, clamp position when locking device is for fixing reading；Reading plotter is to utilize triangle A trisquare reading plotter making of the principle of similitude, and fluted can be so that vernier caliper reading.

These multi-functional clamp, can have Nei Ka and wild card two states, can direct reading, can meet measurement directly, have The requirement of effect, easy to use, simple in construction, processing technology is preferable.

Claims

1. multi-functional 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；It is provided with in clamping section end a pair tong arm decision With the adjustable dop of tong arm angle in plane, front end is that two dops of tip are symmetrical arranged, and when dop slopes inwardly is Interior card, is wild card when dop is outward-dipping；It is additionally provided with the reading dress for reflecting interior card length and wild card length in reading section Put；When dop is angled inwardly into extreme position, the angle between dop axis and clamping section axis is 12 °；Dop is outward-dipping extremely During extreme position, the angle between dop axis and clamping section axis is 25 °；It is further opened with relative recessed in two reading section rear ends Groove, groove is for placing the card pin of slide measure.

Multi-functional clamp the most according to claim 1, is characterized in that, are additionally provided with for can be by a pair tong arm in clamping section It is locked in the locking device of certain angle；Locking device includes the locking plate offering mounting hole above, moves and is arranged on kidney-shaped Two lock-screws in hole, a lock-screw is linked by screw thread pair with a tong arm.