CN109945758A - A kind of clamp - Google Patents
A kind of clamp Download PDFInfo
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- CN109945758A CN109945758A CN201910338666.0A CN201910338666A CN109945758A CN 109945758 A CN109945758 A CN 109945758A CN 201910338666 A CN201910338666 A CN 201910338666A CN 109945758 A CN109945758 A CN 109945758A
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- tong arm
- hinged shaft
- shaft line
- arm
- main scale
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- 238000005259 measurement Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention discloses a kind of clamp, including the first tong arm, the second tong arm, main scale and vernier, the equal length and cross-articulation of the first tong arm and the second tong arm are in the first hinged shaft line；The upper end of first tong arm and the second tong arm is respectively arranged with measuring head；The lower end of first tong arm and one end of main scale are articulated with the second hinged shaft line, and the zero graduation of main scale is on the second hinged shaft line；The lower end of second tong arm and vernier are articulated with third hinged shaft line, and the zero graduation of vernier is on third hinged shaft line；It is provided on vernier and slides through the through-hole of vernier with the matched through-hole of main scale, the other end of main scale.The present invention passes through the first tong arm and the second tong arm of cross-articulation using triangle similarity principle, the actual size that the measuring head of the first tong arm and the second tong arm is measured is transformed into the distance between the first tong arm and the lower end of the second tong arm, accuracy is high, easy to operate.
Description
Technical field
The present invention relates to test measuring device fields, and in particular to a kind of clamp.
Background technique
In actual production, many size detections can not be carried out directly using existing ruler, vernier caliper or height gauge
Measurement.There is the interior thickness of recess class product for measurement middle part or need that vernier calliper will be used after product destruction, cutting
Ruler measurement or needs are by standard gauge block subsidiary, then carry out that actual size is calculated.For measuring the small inside of entrance
The inside dimension of the big product of cavity then can only subtract wall thickness with external dimensions and obtain inside dimension by measurement external dimensions,
Its size being calculated not is the full-size(d) of interiors of products.
It, can be by destroying one for the product of batch production although product to be destroyed to the actual size of available product
Two products obtain the size of same batch products, but cannot take the method for destroying product for small lot or single products
It measures.For needing the size by gauge block subsidiary, due to increasing auxiliary gauge block, there are the accumulation of error, not only
Size is inaccurate, and complicated for operation.
Summary of the invention
In order to solve the above technical problems, the main object of the present invention is to provide a kind of clamp, passes through the first of cross-articulation
The actual size that the measuring head of the measuring head of first tong arm and the second tong arm is measured is converted to the first pincers by tong arm and the second tong arm
The distance between the lower end of arm and the lower end of the second tong arm, it is hinged in the second tong arm lower end in the first hinged main scale in tong arm lower end
Vernier, vernier zero graduation indicate the scale i.e. measuring scale of the measuring head of the first tong arm and the measuring head of the second tong arm in main scale
It is very little.
In order to achieve the above object, the present invention is resolved using following technical scheme.
A kind of clamp, including the first tong arm, the second tong arm, main scale and vernier, the length of first tong arm and the second tong arm
Equal and cross-articulation is spent in the first hinged shaft line；The upper end of first tong arm and the upper end of the second tong arm are respectively arranged with measurement
Head；The lower end of first tong arm and one end of main scale are articulated with the second hinged shaft line, and the zero graduation of the main scale is in the second hinge
On axis；The lower end of second tong arm and vernier are articulated with third hinged shaft line, and the zero graduation of the vernier is in the third
On hinged shaft line；It is provided on the vernier and slides through the vernier with the matched through-hole of main scale, the other end of the main scale
Through-hole；The ratio of the length of the length and International System of Units basic unit of the basic unit of the main scale is equal to the survey of the first tong arm
Measure the substantially single of ratio or the main scale of the distance of head to the first hinged shaft line at a distance from the first hinged shaft line to the second hinged shaft line
The ratio of the length of the length and International System of Units basic unit of position be equal to the measuring head of the second tong arm to the first hinged shaft line away from
From the ratio at a distance from the first hinged shaft line to third hinged shaft line.
Further, the distance of the measuring head of first tong arm to the first hinged shaft line is equal to the first hinged shaft line to the second hinge
The distance of axis, correspondingly, the distance of measuring head to the first hinged shaft line of second tong arm are equal to the first hinged shaft line to third
The distance of hinged shaft line.
Further, the measuring head of first tong arm is cranked arm to being provided with the first evagination between the first hinged shaft line, described
The measuring head of second tong arm is cranked arm to being provided with the second evagination between the first hinged shaft line, and first evagination is cranked arm and the second evagination
Phase of cranking arm convex.
Further, the measuring head of first tong arm is cranked arm to being provided with the first indent between the first hinged shaft line, institute
State the measuring head of the second tong arm and crank arm to being provided with the second indent between the first hinged shaft line, first indent crank arm with second in
Concave curved arm is with respect to indent.
Further, it is provided with auxiliary scale on the vernier, it is long less than main scale unit that unit length is provided in the auxiliary scale
The scale of degree.
Further, ten unit lengths of the auxiliary scale are equal to nine unit lengths of main scale.
Further, 20 unit lengths of the auxiliary scale are equal to 19 unit lengths of main scale.
Further, 50 unit lengths of the auxiliary scale are equal to 49 unit lengths of main scale.
Further, 100 unit lengths of the auxiliary scale are equal to 99 unit lengths of main scale.
Technical solution of the present invention, will by the first tong arm and the second tong arm of cross-articulation for the relevant technologies
The actual size that the measuring head of first tong arm and the measuring head of the second tong arm are measured is transformed into lower end and the second pincers of the first tong arm
The distance between lower end of arm, solve conventional means cannot directly measure depression in centre part interior thickness or mouth it is small interior big
The problem of inside parts size, without calculating, accuracy is high, easy to operate.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is a kind of stereoscopic schematic diagram of embodiment of clamp of the present invention；
Fig. 2 is a kind of part amplification stereogram of the main scale of embodiment of clamp of the present invention；
Fig. 3 is a kind of amplification stereogram of the vernier of embodiment of clamp of the present invention；
Fig. 4 is the stereoscopic schematic diagram of another embodiment of clamp of the present invention；
In the above figure: 1 first tong arm；101 first evaginations are cranked arm；102 first indents are cranked arm；2 second tong arms；201
Two evaginations are cranked arm；202 second indents are cranked arm；3 main scales；4 verniers；401 through-holes；402 auxiliary scales；5 first hinged shaft lines；6 second hinged shafts
Line；7 third hinged shaft lines.
Specific embodiment
It is understandable in order to enable the above objects, features and advantages of the present invention to become apparent, with reference to the accompanying drawing to this hair
Bright specific embodiment is described in detail.
Detail is elaborated in the following description to fully understand the present invention.But the present invention can with it is a variety of not
Other way described herein is same as to implement, those skilled in the art can do class without violating the connotation of the present invention
Like popularization.Therefore the present invention is not limited by following public specific embodiment.
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of clamp, including the first tong arm 1, the second tong arm 2, main scale 3 and vernier 4, described
The equal length of one tong arm 1 and the second tong arm 2 and cross-articulation is in the first hinged shaft line 5；The upper end and second of first tong arm 1
The upper end of tong arm 3 is respectively arranged with measuring head；The lower end of first tong arm 1 and one end of main scale 3 are articulated with the second hinged shaft line
6, the zero graduation of the main scale 3 is on the second hinged shaft line 6；The lower end of second tong arm 2 and vernier 4 are articulated with third hinged shaft
The zero graduation of line 7, the vernier 4 is on the third hinged shaft line 7；It is provided on the vernier 4 and the matched through-hole of main scale 3
401, the other end of the main scale 3 slides through the through-hole 401 of the vernier 4；The length of the basic unit of the main scale 3 and state
The ratio of the length of border system of unit basic unit is equal to the measuring head of the first tong arm 1 to the distance and the first hinge of the first hinged shaft line 5
The length and the International System of Units of the basic unit of the ratio or main scale 3 of the distance of 5 to the second hinged shaft line 6 of axis are substantially single
The ratio of the length of position is equal to the measuring head of the second tong arm 2 to the distance and the first hinged shaft line 5 to third hinged shaft of the first hinged shaft line 5
The ratio of the distance of line 7.
In actual production, many measurements can not be measured directly using existing ruler, vernier caliper or height gauge,
It needs to destroy product, cut or need by standard gauge block subsidiary, then calculated.In above embodiments,
Using the similar principle of triangle, the actual size that the measuring head of the first tong arm 1 and the measuring head of the second tong arm 2 are measured is indirect
It is transformed into the lower end of the first tong arm 1 and the distance between the lower end of the second tong arm 2, by setting hingedly in the lower end of the first tong arm 1
Rotatable main scale 3, the zero graduation of main scale 3 pass through the second hinged shaft line 6, in the hinged rotatable vernier in the lower end of the second tong arm 2
4, the zero graduation of vernier 4 passes through third hinged shaft line 7, the size i.e. measuring head of the first tong arm 1 indicated by the zero graduation of vernier 4 and
The distance between the measuring head of second tong arm 2.Certainly, it according to Similar Principle of Triangle, can be converted, can also be amplified with equal proportion
Conversion can also reduce conversion, and amplification conversion needs to amplify the unit length equal proportion of main scale 3, reduce conversion and need to lead
3 unit length scaled down of ruler.It selects as the case may be in practice.
Further, with reference to Fig. 1, the distance of measuring head to the first hinged shaft line 5 of first tong arm 1 is equal to the first hinged shaft
The distance of 5 to the second hinged shaft line 6 of line, correspondingly, the distance of the measuring head of second tong arm 2 to the first hinged shaft line 5 are equal to the
One hinged shaft line 5 to third hinged shaft line 7 distance.
In above embodiments, preferably in a manner of equal proportion conversion, the survey of the measuring head of the first tong arm 1 and the second tong arm 2
The distance measured between amount head is equal to 4 zero graduation of vernier and indicates the scale on main scale 3, and the zero graduation of vernier 4 is signified on main scale
Show in distance of the reading i.e. between the measuring head of the first tong arm 1 and the measuring head of the second tong arm 2 on main scale 3
Further, with reference to Fig. 1, the measuring head of first tong arm 1 is provided with the first evagination between the first hinged shaft line 5
Crank arm 101, the measuring head of second tong arm 2 cranks arm 201, described first to being provided with the second evagination between the first hinged shaft line 5
Evagination crank arm 101 and second evagination crank arm 201 phase convexes.
In above embodiments, clamp are used to measure the interior thickness size of depression in centre part, such as measure the bottom of bottle of bottle cap
Thickness.
Further, with reference to Fig. 4, the measuring head of first tong arm 1 is provided with the first indent between the first hinged shaft line 5
Crank arm 102, the measuring head of second tong arm 2 cranks arm 202, described first to being provided with the second indent between the first hinged shaft line 5
Indent crank arm 102 and second indent crank arm 202 opposite indents.
In above embodiments, clamp are used to measure the internal cavities size of the big product in the small inside of entrance, as measured in bottle
The internal diameter of portion's cavity.
Further, with reference to Fig. 3, it is provided with auxiliary scale 402 on the vernier 4, is provided with unit length in the auxiliary scale 402
Less than the scale of 3 unit length of main scale.
In above embodiments, in order to improve the measurement accuracy of clamp, the measuring principle of vernier caliper is used for reference, on vernier 4
Auxiliary scale 402 is set, and the unit length of auxiliary scale 402 is less than the unit length of main scale 3, the unit length of main scale 3 and the list of auxiliary scale 402
Difference, that is, clamp precision of bit length.
Further, ten unit lengths of the auxiliary scale 402 are equal to nine unit lengths of main scale 3.
In above embodiments, preferably ten unit lengths of auxiliary scale 402 are equal to nine unit lengths of main scale 3, i.e. main scale 3
Unit length 0.1 main scale 3 bigger than the unit length of auxiliary scale 402 unit length.If the unit length of main scale 3 is 1mm,
Then the unit length of auxiliary scale 402 is 0.9mm, then the precision of the present embodiment clamp is 0.1mm.
Further, 20 unit lengths of the auxiliary scale 402 are equal to 19 unit lengths of main scale 3.
Similarly, in above embodiments, preferably 20 unit lengths of auxiliary scale 402 are long equal to 19 units of main scale 3
Degree, the i.e. unit length of the unit length of main scale 3 0.05 main scale 3 bigger than the unit length of auxiliary scale 402.If the list of main scale 3
Bit length is 1mm, then the unit length of auxiliary scale 402 is 0.95mm, then the precision of the present embodiment clamp is 0.05mm.
Further, 50 unit lengths of the auxiliary scale 402 are equal to 49 unit lengths of main scale 3.
Similarly, in above embodiments, preferably 50 unit lengths of auxiliary scale 402 be equal to main scale 3 49 units
The unit length of length, the i.e. unit length of main scale 3 0.02 main scale 3 bigger than the unit length of auxiliary scale 402.If main scale 3
Unit length is 1mm, then the unit length of auxiliary scale 402 is 0.98mm, then the precision of the present embodiment clamp is 0.02mm.
Further, 100 unit lengths of the auxiliary scale 402 are equal to 99 unit lengths of main scale 3.
Similarly, in above embodiments, 100 unit lengths of auxiliary scale 402 are equal to 99 unit lengths of main scale 3,
That is the unit length of the unit length of main scale 3 0.01 main scale 3 bigger than the unit length of auxiliary scale 402.If the unit of main scale 3 is long
Degree is 1mm, then the unit length of auxiliary scale 402 is 0.99mm, then the precision of the present embodiment clamp is 0.01mm.
Although the present invention is described in detail with a general description of the specific embodiments in this specification,
But on the basis of the present invention, it can be made some modifications or improvements, this it will be apparent to those skilled in the art that.Cause
This, these modifications or improvements on the basis of without departing from the present invention are fallen within the scope of the claimed invention.
Claims (9)
1. a kind of clamp, which is characterized in that including the first tong arm (1), the second tong arm (2), main scale (3) and vernier (4), described
The equal length and cross-articulation of one tong arm (1) and the second tong arm (2) are in the first hinged shaft line (5)；First tong arm (1) it is upper
The upper end at end and the second tong arm (3) is respectively arranged with measuring head；
The lower end of first tong arm (1) and the one end of main scale (3) are articulated with the second hinged shaft line (6), zero quarter of the main scale (3)
Degree is on the second hinged shaft line (6)；
The lower end and the vernier (4) of second tong arm (2) are articulated with third hinged shaft line (7), the zero graduation of the vernier (4)
On the third hinged shaft line (7)；It is provided on the vernier (4) and main scale (3) matched through-hole (401), the main scale
(3) the other end slides through the through-hole (401) of the vernier (4)；
The ratio of the length of the length and International System of Units basic unit of the basic unit of the main scale (3) is equal to the first tong arm
(1) measuring head to the first hinged shaft line (5) ratio of the distance at a distance from the first hinged shaft line (5) to the second hinged shaft line (6), or
The ratio of the length of the length and International System of Units basic unit of the basic unit of the main scale (3) is equal to the second tong arm (2)
Measuring head to the first hinged shaft line (5) ratio of the distance at a distance from the first hinged shaft line (5) to third hinged shaft line (7).
2. clamp according to claim 1, which is characterized in that the measuring head of first tong arm (1) to the first hinged shaft line
(5) distance is equal to the distance of the first hinged shaft line (5) to the second hinged shaft line (6), correspondingly, the measurement of second tong arm (2)
Head is equal to the distance of the first hinged shaft line (5) to third hinged shaft line (7) to the distance of the first hinged shaft line (5).
3. clamp according to claim 2, which is characterized in that the measuring head of first tong arm (1) to the first hinged shaft line
(5) it is provided with the first evagination between to crank arm (101), the measuring head of second tong arm (2) is arranged between the first hinged shaft line (5)
There is the second evagination to crank arm (201), first evagination is cranked arm (101) and the second evagination is cranked arm (201) phase convex.
4. clamp according to claim 2, which is characterized in that the measuring head of first tong arm (1) to the first hinged shaft line
(5) it is provided with the first indent between to crank arm (102), the measuring head of second tong arm (2) is arranged between the first hinged shaft line (5)
There is the second indent to crank arm (202), opposite indent that first indent is cranked arm (102) and the second indent is cranked arm (202).
5. clamp according to claim 2, which is characterized in that be provided with auxiliary scale (402), the pair on the vernier (4)
Scale of the unit length less than the unit length of main scale (3) is provided on ruler (402).
6. clamp according to claim 5, which is characterized in that ten unit lengths of the auxiliary scale (402) are equal to main scale
(3) nine unit lengths.
7. clamp according to claim 5, which is characterized in that 20 unit lengths of the auxiliary scale (402) are equal to master
19 unit lengths of ruler (3).
8. clamp according to claim 5, which is characterized in that 50 unit lengths of the auxiliary scale (402) are equal to master
49 unit lengths of ruler (3).
9. clamp according to claim 5, which is characterized in that 100 unit lengths of the auxiliary scale (402) are equal to master
99 unit lengths of ruler (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338666.0A CN109945758A (en) | 2019-04-25 | 2019-04-25 | A kind of clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338666.0A CN109945758A (en) | 2019-04-25 | 2019-04-25 | A kind of clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109945758A true CN109945758A (en) | 2019-06-28 |
Family
ID=67016208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910338666.0A Pending CN109945758A (en) | 2019-04-25 | 2019-04-25 | A kind of clamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN109945758A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339971Y (en) * | 1998-10-16 | 1999-09-22 | 于若愚 | Vernier caliper |
| CN2608940Y (en) * | 2003-02-25 | 2004-03-31 | 于若愚 | Inside-outside vernier callipers |
| CN201255620Y (en) * | 2008-08-26 | 2009-06-10 | 镇瑜 | Vernier caliber |
| CN101581561A (en) * | 2009-06-29 | 2009-11-18 | 陈焕春 | Level vernier caliper |
| CN203083488U (en) * | 2013-01-16 | 2013-07-24 | 陕西工业职业技术学院 | Integral vertical and horizontal step gage |
| CN203349721U (en) * | 2013-05-23 | 2013-12-18 | 李照教 | Caliper for measuring face width |
| CN103712537A (en) * | 2013-12-11 | 2014-04-09 | 国家电网公司 | Measuring device for mechanical stroke of high-voltage switch cabinet |
| CN209672984U (en) * | 2019-04-25 | 2019-11-22 | 陕西工业职业技术学院 | A kind of clamp |
-
2019
- 2019-04-25 CN CN201910338666.0A patent/CN109945758A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339971Y (en) * | 1998-10-16 | 1999-09-22 | 于若愚 | Vernier caliper |
| CN2608940Y (en) * | 2003-02-25 | 2004-03-31 | 于若愚 | Inside-outside vernier callipers |
| CN201255620Y (en) * | 2008-08-26 | 2009-06-10 | 镇瑜 | Vernier caliber |
| CN101581561A (en) * | 2009-06-29 | 2009-11-18 | 陈焕春 | Level vernier caliper |
| CN203083488U (en) * | 2013-01-16 | 2013-07-24 | 陕西工业职业技术学院 | Integral vertical and horizontal step gage |
| CN203349721U (en) * | 2013-05-23 | 2013-12-18 | 李照教 | Caliper for measuring face width |
| CN103712537A (en) * | 2013-12-11 | 2014-04-09 | 国家电网公司 | Measuring device for mechanical stroke of high-voltage switch cabinet |
| CN209672984U (en) * | 2019-04-25 | 2019-11-22 | 陕西工业职业技术学院 | A kind of clamp |
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