CN203857889U - Vernier caliper with improved measuring claw - Google Patents
Vernier caliper with improved measuring claw Download PDFInfo
- Publication number
- CN203857889U CN203857889U CN201420121828.8U CN201420121828U CN203857889U CN 203857889 U CN203857889 U CN 203857889U CN 201420121828 U CN201420121828 U CN 201420121828U CN 203857889 U CN203857889 U CN 203857889U
- Authority
- CN
- China
- Prior art keywords
- measuring claw
- vernier caliper
- pawl
- vernier
- claw
- 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.)
- Expired - Lifetime
Links
- 210000000078 claw Anatomy 0.000 title claims abstract description 54
- 238000005259 measurement Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 abstract description 9
- 238000012360 testing method Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 230000037303 wrinkles Effects 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a vernier caliper with an improved measuring claw. The vernier caliper comprises a main ruler, a depth ruler at one end of the main ruler, a vernier which is attached on the main ruler and can slide on the main ruler, and first inner and outer measuring claws which are fixed on the main ruler and the vernier. The first inner measuring claw is above the main ruler, and the first outer measuring claw is under the main ruler. An improved measuring claw is sleeved on the first outer measuring claw from bottom to top, the claw of the improved measuring claw is provided with a cover plate with a nut hole, and the improved measuring claw is fixed on the first outer measuring claw through a nut tightening mode. According to the vernier caliper, the improved inner and outer measuring claws are selected and installed on an existing 0-200mm universal vernier caliper, the testing requirement of special process is satisfied, and the use range of the 0-200mm universal vernier caliper is enlarged. The improved inner and outer measuring claws are made of ordinary gauge steel materials by lathe processing and are fixed on the original 0-200mm universal vernier caliper through screws, the installation is convenient, and the vernier caliper with the improved measuring claw can be used immediately after installation. At the same time, the large cost of purchasing a professional type caliper is saved.
Description
Technical field
The utility model belongs to power cable fields of measurement, is specifically related to a kind of adding to join the vernier caliper that improves measuring claw.
Background technology
Vernier caliper is the instrument that upper the most frequently used measurement length is manufactured in industry.Vernier caliper is by main scale and be attached to slidable vernier two parts on main scale and form.Main scale is generally taking millimeter as unit, and according to the difference of vernier lattice, vernier caliper can be divided into extremely spends vernier caliper, 20 points of degree vernier calipers, 50 points of degree lattice vernier calipers etc.To be accurate to the vernier caliper of 0.02 millimeter as example, the minimum calibration on blade is 1 millimeter, has 50 little evenly divideds on vernier scale, 49 millimeters of overall lengths, and every one division is 0.98 millimeter, differs 0.02 millimeter than the minimum calibration on main scale.On the main scale of vernier caliper and vernier, having two secondary movable measuring jaws, is respectively interior measuring claw and external pelivimetry pawl, and interior measuring claw is commonly used to measure internal diameter, and external pelivimetry pawl is commonly used to measure length and external diameter.In the time that the dimension of the object of measuring between measuring jaw is 0.02 millimeter, vernier scale should move 0.02 millimeter to the right.At this moment its 1st article of scale mark aligns with 1 millimeter of scale mark of blade just.When the same Article 5 scale mark when vernier aligns with 5 millimeters of scale marks of blade, the width that has 0.1 millimeter between two measuring jaws is described ..., the rest may be inferred.In the time that measurement is greater than the length of 1 millimeter, whole millimeter will be read from vernier " 0 " the line scale mark relative with blade.
Vernier caliper is also the most frequently used surveying instrument of cables manufacturing industry, and vernier caliper is used to measure each in-process outside dimension in cable production run, to meet manufacturing technique requirent.But in extra-high-tension cable wrinkle metallic aluminium sheath operation is produced, the most conventional 0-200mm vernier caliper but can not meet the measurement requirement of aluminium cover corrugated tube internal-and external diameter.
Aluminium cover corrugated tube is the texture that goes out the spiral extension of the 3mm-6mm degree of depth, 20-40mm pitch in the roll compacting of quantity-produced aluminum tube surfaces, because measuring claw length 10mm, external pelivimetry pawl length in the universal vernier caliper of existing 0-200mm are 35mm, interior measuring claw length is owing to being less than pitch length, external pelivimetry pawl because measurement end face is too narrow, at all cannot Measurement accuracy corrugated tube internal-and external diameter, the error producing in measurement is conventionally at 2mm-4mm.
Its weak point is: in measurement, error is larger, is unfavorable for the control for technological parameter in production run, causes product quality problem.And choose a special one-way clutch vernier caliper, price is ten times more than of 0-200mm vernier caliper, spends larger.
Utility model content
The purpose of this utility model is to provide a kind of measuring equipment purchase cost, simple to operate of saving, and it is convenient, not fragile to change, with filling with use, and time processing, permanent adding of being benefited, is joined the vernier caliper that improves measuring claw.
A kind of adding described in the utility model, is joined the vernier caliper that improves measuring claw, it comprises main scale, be positioned at the pit gauge of main scale one end, be attached to slidable vernier scale on main scale and be fixed on main scale and vernier scale on the first inside and outside measuring claw, the first described interior measuring claw is positioned at the top of main scale, and the first external pelivimetry pawl is positioned at the below of main scale; On the first described external pelivimetry pawl, bottom-up cover has paired improvement measuring claw, and the pawl pin that improves measuring claw is provided with the cover plate with nut bore, and by nut screwing clamping mode, paired improvement measuring claw symmetry is fixed on the first external pelivimetry pawl.
Further improve, described improvement measuring claw is the second interior measuring claw or the second external pelivimetry pawl.
Further improve, it is identical with the height on vernier scale the first external pelivimetry pawl that described improvement measuring claw is enclosed within main scale.
Further improve, described pawl pin is hollow shape.
Further improve, on described cover plate, be at least provided with 2 threaded silk holes.
Further improve, the second described outside diameter measuring pawl is sheet.
Further improve, the second described inner diameter measurement pawl is inverted triangle prism-shaped.
The beneficial effects of the utility model are:
1. by the improvement of this utility model, measurement range and the function thereof of the universal vernier caliper of 0-200mm are increased, meet the corrugated tube internal-and external diameter testing requirement of extra-high-tension cable wrinkle metallic aluminium sheath production process, reduced the error of universal vernier caliper measurement in the past measuring to 0.4mm.
2. saved the expense of purchasing special new measurement apparatus.
3. select more common gauge steel, can complete by inside plants overhaul shop processing and fabricating.
4. simple to operate, it is convenient to change.
5. not fragile, with filling with use; Time processing, is forever benefited.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the second inner diameter measurement pawl structural representation of the present utility model, and wherein (a) is front view structure, is (b) side view structure;
Fig. 3 is the second outside diameter measuring pawl structural representation of the present utility model, and wherein (c) is front view structure, is (d) side view structure.
Embodiment
As shown in Figure 1, a kind of adding described in the utility model, is joined the vernier caliper that improves measuring claw, it comprises main scale 1, be positioned at the pit gauge 11 of main scale one end, be attached to slidable vernier scale 2 on main scale 1 and be fixed on main scale 1 and vernier scale 2 on the first inside and outside footpath measuring claw 3,4, the first described inner diameter measurement pawl 3 is positioned at the top of main scale, and the first outside diameter measuring pawl 4 is positioned at the below of main scale; On the first described external pelivimetry pawl 4, bottom-up cover has paired improvement measuring claw 5, and the pawl pin 6 that improves measuring claw 5 is provided with the cover plate 8 in screwed silk hole 7, and by nut screwing clamping mode, improvement measuring claw 5 symmetries is fixed on the first outside diameter measuring pawl 4.
Described improvement measuring claw 5 is the second inner diameter measurement pawl 9 or the second outside diameter measuring pawl 10; It is identical that described improvement measuring claw 4 is enclosed within height on the first outside diameter measuring pawl 4 of main scale 1 and vernier scale 2.
Principle of work of the present utility model: use when the second inner diameter measurement pawl (see figure 2), only need be enclosed within on 0-200mm vernier caliper outside diameter measuring pawl with identical two the second inner diameter measurement pawls, use small handwheel nut to fix by slide calliper rule after closing up measuring claw.Check that whether vernier 0 scale mark overlaps completely with main scale 10mm scale mark, reaffirms that the second inner diameter measurement pawl and 0-200mm vernier caliper outside diameter measuring pawl fixedly secure.Correct card is got measured object, reads measurement numerical value according to normal vernier caliper reading method, and read value deducts 10mm and is measured value.
While using the second outside diameter measuring pawl (see figure 3), only need be enclosed within on 0-200mm vernier caliper outside diameter measuring pawl with identical two the second outside diameter measuring pawls, use small handwheel nut to fix by slide calliper rule after closing up measuring claw.Check that whether vernier 0 scale mark overlaps completely with main scale 6mm scale mark, reaffirms that the second outside diameter measuring pawl (fixedly secures with 0-200mm vernier caliper external pelivimetry pawl.Correct card is got measured object, reads measurement numerical value according to normal vernier caliper reading method, and read value deducts 6mm and is measured value.
Before improvement: the universal vernier caliper of 0-200mm, due to shorter, only can be measured the outside diameter of cable of the following small dimension of 90mm, regular shape.Cannot meet large specification, irregular (corrugated aluminum pipe) internal-and external diameter test needs, only purchase separately tailored version slide calliper rule for special procedure, buying expenses exceeds decades of times than general slide calliper rule, and use occasion limitation is larger, must cause the waste that repeats purchase.
After improvement: on the universal vernier caliper of existing 0-200mm, the test request of special procedure is installed the second interior measuring claw, external pelivimetry pawl additional and met in apolegamy, has increased the usable range of the universal vernier caliper of 0-200mm.The utility model adopts ordinary measring tool Steel material to process through lathe, only need be fixed on existing universal vernier caliper the first external pelivimetry pawl of 0-200mm by similar screw on vernier scale, and it is convenient to install, with filling with use.Meanwhile, saved the expense of the professional slide calliper rule of a large number of purchase.
The utility model provides a kind of adding to join the vernier caliper that improves measuring claw; the above is only preferred implementation method of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvement, these improve and also should be considered as protection domain of the present utility model.
Claims (7)
1. one kind adds and joins the vernier caliper that improves measuring claw, it comprises main scale (1), is positioned at the pit gauge (11) of main scale one end, be attached to the upper slidable vernier scale (2) of main scale (1) and be fixed on main scale (1) and vernier scale (2) on the first inside and outside footpath measuring claw (3,4), the first described inner diameter measurement pawl (3) is positioned at the top of main scale, and the first outside diameter measuring pawl (4) is positioned at the below of main scale; It is characterized in that, the upper bottom-up cover of the first described external pelivimetry pawl (4) has paired improvement measuring claw (5), the pawl pin (6) that improves measuring claw (5) is provided with the cover plate (8) in screwed silk hole (7), and will improve measuring claw (5) symmetry by nut screwing clamping mode and be fixed on the first outside diameter measuring pawl (4).
2. according to claim 1 adding, is joined the vernier caliper that improves measuring claw, it is characterized in that: described improvement measuring claw (5) is the second inner diameter measurement pawl (9) or the second outside diameter measuring pawl (10).
3. according to claim 1 adding, is joined the vernier caliper that improves measuring claw, it is characterized in that: it is identical that described improvement measuring claw (4) is enclosed within height on the first outside diameter measuring pawl (4) of main scale (1) and vernier scale (2).
4. according to claim 1 adding, is joined the vernier caliper that improves measuring claw, it is characterized in that: described pawl pin (6) is hollow shape.
5. according to claim 1 adding, is joined the vernier caliper that improves measuring claw, it is characterized in that: on described cover plate (8), be at least provided with 2 threaded silk holes (7).
6. according to claim 1 adding, is joined the vernier caliper that improves measuring claw, it is characterized in that: the second described inner diameter measurement pawl (9) is sheet.
7. according to claim 1 adding, is joined the vernier caliper that improves measuring claw, it is characterized in that: the second described outside diameter measuring pawl (10) is inverted triangle prism-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121828.8U CN203857889U (en) | 2014-03-18 | 2014-03-18 | Vernier caliper with improved measuring claw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121828.8U CN203857889U (en) | 2014-03-18 | 2014-03-18 | Vernier caliper with improved measuring claw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203857889U true CN203857889U (en) | 2014-10-01 |
Family
ID=51607736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420121828.8U Expired - Lifetime CN203857889U (en) | 2014-03-18 | 2014-03-18 | Vernier caliper with improved measuring claw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203857889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954185A (en) * | 2014-03-18 | 2014-07-30 | 无锡市曙光电缆有限公司 | Vernier caliper additionally provided with improved measuring pawls |
-
2014
- 2014-03-18 CN CN201420121828.8U patent/CN203857889U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954185A (en) * | 2014-03-18 | 2014-07-30 | 无锡市曙光电缆有限公司 | Vernier caliper additionally provided with improved measuring pawls |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141001 |