CN213956198U - Caliper auxiliary tool and caliper - Google Patents
Caliper auxiliary tool and caliper Download PDFInfo
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- CN213956198U CN213956198U CN202023062007.6U CN202023062007U CN213956198U CN 213956198 U CN213956198 U CN 213956198U CN 202023062007 U CN202023062007 U CN 202023062007U CN 213956198 U CN213956198 U CN 213956198U
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Abstract
Caliper rule auxiliary fixtures, including fixing base (1) and measuring head (2), the one end of fixing base (1) has outer graduated flask draw-in groove, the other end of fixing base (1) has the mounting hole, threaded through hole (6) have on fixing base (1) of outer graduated flask draw-in groove side, the spiro union has countersunk screw (8) on threaded through hole (6), measuring head (2) include shaft-like portion, the one end of shaft-like portion has fixed head (4), measuring head (2) other end has disc (3), fixed head (4) are fixed on the mounting hole, disc (3) perpendicular to shaft-like portion, the major axis of outer graduated flask draw-in groove is the same with the major axis of shaft-like portion to the major axis. The utility model discloses a slide caliper rule auxiliary fixtures, convenient to use, simple structure, measuring range is wide, adds and just can measure wall thickness size and inner groovy diameter after the pipe reaming on general measuring tool, does not receive the influence of surveyed a whole size, can realize being surveyed a field measurement, and measuring method is simple and convenient, is difficult for producing human error.
Description
Technical Field
The utility model relates to a slide caliper rule, concretely relates to slide caliper rule auxiliary fixtures and a slide caliper rule.
Background
The following two common measurement methods are used for measuring the wall thickness of a complex irregular part:
(1) the calipers of different types are utilized for matching measurement, if the inner groove digital display calipers are used for measuring the diameter of the inner hole of the guide pipe, the outer measuring claw of the digital display calipers is utilized for measuring the outer diameter, and therefore the wall thickness measurement is obtained. The defects are that the manufacturing steps are multiple, the measurement cost is high, and the influence of the whole size of a measured piece is easy to occur.
(2) And (3) utilizing a height measuring instrument to carry out upper and lower dotting method measurement, enabling the measuring head to enter the inner wall of the conduit to find the highest point, finding the highest point on the outer wall of the measuring conduit, and then utilizing a formula to calculate the thickness of the conduit wall. The method cannot determine whether the inside and the outside of a measurement point are on the same point, and can only carry out measurement for many times, and an average value is taken as measurement data, so that the measurement uncertainty is high. The defect is that the measured piece needs to be clamped, time and labor are consumed, rapid measurement on site cannot be realized, and the influence of the whole size of the measured piece is easy to cause.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a caliper auxiliary tool and a caliper, which realize the measurement of the wall thickness of irregular parts by installing simple auxiliary tool accessories on the basis of not destroying the use function of the common caliper, overcome the problems in the prior art,
in order to achieve the above purpose, the technical scheme of the invention is as follows:
caliper rule auxiliary fixtures, a serial communication port, including fixing base and measuring head, the one end of fixing base has outer graduated flask draw-in groove, the other end of fixing base has the mounting hole, threaded through hole has on the fixing base of outer graduated flask draw-in groove side, the spiro union has countersunk screw on the threaded through hole, the measuring head includes shaft-like portion, the one end of shaft-like portion has the fixed head, the measuring head other end has the disc, the fixed head is fixed on the mounting hole, disc perpendicular to shaft-like portion, the major axis of outer graduated flask draw-in groove is the same with the major axis of shaft-like portion to.
As a preferred technical scheme, the clamping groove of the outer measuring claw is a U-shaped groove.
According to the preferable technical scheme, the number of the thread through holes is two, and the arrangement direction of the two thread through holes is the long axial direction of the outer measuring claw clamping groove.
Preferably, the length of the rod-shaped part is 20-30 mm.
Preferably, the fixing seat is cylindrical, and the outer diameter of the fixing seat is not larger than the diameter of the disc.
According to the preferable technical scheme, the diameter of the disc is 10-20 mm, and the thickness of the disc is 1 mm.
According to a preferable technical scheme, the mounting hole is a threaded hole, the fixing head is a bolt, and the bolt is in threaded connection with the threaded hole.
The utility model also provides a slide caliper rule, including two outer graduated flask, still include two slide caliper rule auxiliary fixtures, outer graduated flask is fixed in the outer graduated flask draw-in groove, the countersunk screw is in screw on the screw thread through-hole, the lower part of countersunk screw supports outer graduated flask, and two slide caliper rule auxiliary fixtures's shaft-like portion is parallel, and the disc of two shaft-like portion anterior segments is on the coplanar.
Preferably, the caliper is a digital display caliper.
Compared with the prior art, the beneficial effects of the utility model are that:
the caliper auxiliary tool of the utility model is additionally arranged on a general measuring tool, so that the use cost can be effectively saved, the use is convenient, the structure is simple, the measuring range is wide, the wall thickness and the inner groove diameter of a round pipe after reaming can be measured, and the requirements of related verification regulations can be met; the utility model discloses a slide caliper rule does not receive the influence of being surveyed a whole size, can realize being surveyed a field measurement, and measuring method is simple and convenient, is difficult for producing human error, and measurement of efficiency is high, and it can be more nimble to measure complicated and anomalous part, reduces the damage to being surveyed a piece.
Drawings
Fig. 1 is a schematic structural view of a caliper auxiliary tool in embodiment 1 of the present invention;
fig. 2 is a schematic view of the caliper auxiliary tool in embodiment 1 of the present invention installed behind an outer measuring jaw;
in the above fig. 1-2, 1-fixing base, 2-measuring head, 3-disc, 4-fixing head, 5-U-shaped groove, 6-threaded through hole, 7-external measuring claw, 8-countersunk head screw.
The specific implementation mode is as follows:
the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in figure 1, a caliper auxiliary fixtures includes fixing base 1 and measuring head 2, and the one end of fixing base 1 has U-shaped groove 5, and the other end of fixing base 1 has the mounting hole. The fixing seat 1 on the side of the U-shaped groove 5 is provided with two thread through holes 6, the thread through holes 6 are connected with countersunk screws 8 in a threaded manner, and the arrangement direction of the two thread through holes 6 is the long axial direction of the U-shaped groove 5.
The measuring head 2 comprises a rod-shaped part, one end of the rod-shaped part is provided with a fixing head 4, the fixing head 4 is fixed on the mounting hole, the disc 3 is perpendicular to the rod-shaped part, and the long axial direction of the U-shaped groove 5 is the same as the long axial direction of the rod-shaped part. Preferably, the mounting hole is a threaded hole, the fixing head 4 is a bolt, and the bolt is screwed in the threaded hole.
The utility model discloses a slide caliper rule auxiliary fixtures uses in pairs, fixes when using on the outer graduated jaw 7 on slide caliper rule (ordinary slide caliper rule or digital display slide caliper rule are general), and outer graduated jaw 7 card is in U-shaped groove 5, and countersunk screw 8 screws on screw through-hole 6, and countersunk screw 8's lower part supports outer graduated jaw 7 to fix slide caliper rule auxiliary fixtures on outer graduated jaw 7. The fixed slide caliper rule auxiliary fixtures after, two shaft-like portions are parallel, and the disc 3 of two shaft-like portion anterior segments is on the coplanar.
Preferably, the fixing seat 1 is cylindrical, and the outer diameter of the fixing seat 1 is smaller than the diameter of the disc. Preferably, the diameter of the fixed seat is 9.5mm, and the diameter of the disc is 10 mm. The internal thread of the U-shaped fixed connecting seat is M3mm internal thread. Secondly, the length of the circular measuring head is 20mm and can be changed, the diameter of the disc is phi 10mm, and the diameter of the disc is 20mm and the length of the disc is 30mm according to the size of the measured part. The depth of the internal thread of the M3mm is 10 mm.
Example 2
The wall thickness and the inner groove diameter of the round tube after hole expansion can be measured after an auxiliary tool is installed on an external measuring claw of the digital caliper, and the measurement realization results are shown in the following table.
TABLE 1 error of digital display callipers
TABLE 2 catheter wall thickness dimension measurement experiment results
Self-correcting with 10mm gauge block before measurement, and meeting the error of the calibration rule
TABLE 3 groove diameter measurement test results
Self-correcting with 20mm ring gauge before measurement, and meeting the error of the calibration rule
Can find out from table 1 ~ 2, use and installed additional the utility model discloses a slide caliper rule auxiliary fixtures carry out wall thickness size and inner groovy diameter measurement after the pipe reaming, and the measurement accuracy homoenergetic accords with the requirement of national verification regulation.
It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, other improvements obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (9)
1. Caliper rule auxiliary fixtures, a serial communication port, including fixing base (1) and measuring head (2), the one end of fixing base (1) has outer graduated flask draw-in groove, the other end of fixing base (1) has the mounting hole, threaded through hole (6) have on fixing base (1) of outer graduated flask draw-in groove side, the spiro union has countersunk screw (8) on threaded through hole (6), measuring head (2) include shaft-like portion, the one end of shaft-like portion has fixed head (4), measuring head (2) other end has disc (3), fixed head (4) are fixed on the mounting hole, disc (3) perpendicular to shaft-like portion, the major axis of outer graduated flask draw-in groove is the same with the major axis of shaft-like portion to.
2. A caliper auxiliary tool according to claim 1, wherein the outer measuring jaw clamping groove is a U-shaped groove (5).
3. A caliper auxiliary tool according to claim 1, wherein the number of the threaded through holes (6) is two, and the arrangement direction of the two threaded through holes (6) is the long axial direction of the clamping grooves of the outer measuring jaw.
4. A caliper auxiliary tool according to claim 1, wherein the length of the rod-shaped portion is 20-30 mm.
5. A caliper auxiliary tool according to claim 1, characterized in that the fixing seat (1) is cylindrical, and the outer diameter of the fixing seat (1) is not larger than the diameter of the disc (3).
6. A caliper auxiliary tool according to claim 1, wherein the diameter of the disc (3) is 10-20 mm, and the thickness is 1 mm.
7. A caliper auxiliary tool according to claim 1, wherein the mounting hole is a threaded hole, and the fixing head (4) is a bolt screwed in the threaded hole.
8. A caliper rule comprises two outer measuring claws (7) and is characterized by further comprising two caliper rule auxiliary tools according to any one of claims 1 to 7, wherein the outer measuring claws (7) are fixed in clamping grooves of the outer measuring claws, countersunk screws (8) are screwed on the threaded through holes (6), the lower parts of the countersunk screws (8) abut against the outer measuring claws (7), rod-shaped parts of the two caliper rule auxiliary tools are parallel, and discs (3) of the front sections of the two rod-shaped parts are on the same plane.
9. A calliper according to claim 8, wherein said calliper is a digital display calliper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023062007.6U CN213956198U (en) | 2020-12-17 | 2020-12-17 | Caliper auxiliary tool and caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023062007.6U CN213956198U (en) | 2020-12-17 | 2020-12-17 | Caliper auxiliary tool and caliper |
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| Publication Number | Publication Date |
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| CN213956198U true CN213956198U (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023062007.6U Active CN213956198U (en) | 2020-12-17 | 2020-12-17 | Caliper auxiliary tool and caliper |
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| CN (1) | CN213956198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593656A (en) * | 2022-01-21 | 2022-06-07 | 歌尔科技有限公司 | Measuring tool and measuring method |
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2020
- 2020-12-17 CN CN202023062007.6U patent/CN213956198U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593656A (en) * | 2022-01-21 | 2022-06-07 | 歌尔科技有限公司 | Measuring tool and measuring method |
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