CN114353632A - Micrometer head indicating error checking tool for outside micrometer - Google Patents
Micrometer head indicating error checking tool for outside micrometer Download PDFInfo
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- CN114353632A CN114353632A CN202111492797.8A CN202111492797A CN114353632A CN 114353632 A CN114353632 A CN 114353632A CN 202111492797 A CN202111492797 A CN 202111492797A CN 114353632 A CN114353632 A CN 114353632A
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- 230000007246 mechanism Effects 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 13
- 230000007547 defect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
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Abstract
The invention discloses a micrometer head indication error checking fixture for an outside micrometer, which comprises a mounting frame and an adjustable measuring felt arranged on the mounting frame through an adjustable connecting assembly, wherein the mounting frame is provided with a detachable connecting assembly arranged on a micrometer frame of the outside micrometer, the micrometer head indication error checking fixture for the outside micrometer further comprises a positioning piece used for positioning the relative position of the adjustable measuring felt and a micrometer screw rod of the outside micrometer, one end of the positioning piece is provided with a first positioning hole for inserting and positioning the adjustable measuring felt, the other end of the positioning piece is provided with a second positioning hole for inserting and positioning the micrometer screw rod, and the central line of the first positioning hole is superposed with the central line of the second positioning hole. The micrometer head indicating error gauge of the outside micrometer has the advantages of simple structure, low cost, simplicity and convenience in operation, accuracy and reliability in positioning, high measurement accuracy and the like.
Description
Technical Field
The invention relates to the technical field of detection tools, in particular to a micrometer head indication error detection tool of an outside micrometer.
Background
According to the regulation of JJG21-2008 micrometer calibration regulation, a micrometer with the upper limit of measurement larger than 150mm can only detect the micrometer indication error. When the measurement range of the micrometer head of the micrometer is (0-25) mm, small blocks of 5.12mm, 10.24mm, 15.36mm, 21.50mm and 25.00mm are required to be arranged between the end face of the micrometer screw and the end face of the measuring felt respectively to finish the calibration of the indication error of the micrometer head of the micrometer.
The detection of the micrometer head indication error of the micrometer needs to use a special detection tool, the special detection tools on the market are all similar to the demonstration detection tools in JJF1088-2015 'calibration standard for large-size outside micrometer', the checking fixture mainly comprises a tripod bracket structure and an adjustable measuring felt which is arranged on the tripod bracket structure through a screw rod, the tripod bracket structure is detachably arranged on the arc part of a micrometer frame of the micrometer through a clamping mechanism with fixed size and a fastener, because the end face of the adjustable measuring felt is parallel to the end face of the micrometer screw after the measuring tool is arranged on the ruler frame, the measuring accuracy can be ensured, when the detection tool is used, the angle of the end face of the adjustable detection felt needs to be adjusted and controlled by adjusting and controlling the mounting position and the angle of the triangular support structure through manual experience, and the problem of measurement error exists because the end face of the adjustable detection felt is difficult to be ensured to be parallel to the end face of the micrometer screw. Meanwhile, the position of the adjustable felt is adjusted by the screw, so that the defects of low efficiency and complex operation exist, and the detection efficiency is greatly reduced. In addition, because micrometer frames of micrometers of different manufacturers and models are different in shape and size, a clamping sleeve mechanism with a fixed size cannot stably clamp and fix all the micrometer frames, the universality is poor, and the combination of a triangular support structure and a clamping mechanism has the defects of complex structure, high manufacturing difficulty and high assembling and disassembling and adjusting difficulty.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provides the micrometer head indication error detection tool for the outside micrometer, which has the advantages of simple structure, low cost, simplicity and convenience in operation, accurate and reliable positioning and high measurement accuracy.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an utensil is examined to micrometer indicating value error of external micrometer, includes the mounting bracket and installs through adjustable coupling assembling adjustable survey felt on the mounting bracket, the mounting bracket is equipped with the coupling assembling of dismantling that is used for installing on the chi frame of external micrometer, utensil is examined to micrometer indicating value error of external micrometer still includes the setting element that is used for advancing line location to the relative position of the micrometer screw rod of adjustable survey felt and external micrometer, the one end of setting element is equipped with and supplies adjustable survey felt to insert the first locating hole of location, the other end of setting element is equipped with and supplies micrometer screw rod to insert the second locating hole of location, the central line of first locating hole and the coincidence of the central line of second locating hole.
As a further improvement of the above technical solution:
the second positioning hole is a tapered hole with the aperture gradually reduced along the insertion direction of the micrometer screw.
Adjustable coupling assembling is including adjusting the seat, it establishes on the mounting bracket to adjust the seat along adjustable survey felt central line direction cunning, adjustable survey felt is installed adjust on the seat, adjustable coupling assembling is still including being used for locking and releasing adjust the locking mechanism of seat.
The mounting bracket is equipped with the branch portion of two interval arrangements, branch portion is equipped with the spout, adjust the seat and be equipped with two sliding parts that the branch was located both ends, two sliding parts respectively correspond with the spout of two branch portions along adjustable survey felt central line direction sliding fit.
The one end that the mounting bracket was kept away from to the spout is equipped with the opening that supplies the sliding part to get into and withdraw from.
The end faces at the two ends of the adjusting seat are respectively and correspondingly abutted against the two strut parts, and the distance between the end faces at the two ends of the adjusting seat is equal to the distance between the two strut parts.
The locking mechanism comprises two nuts, each sliding part is connected with a screw part extending out of the sliding groove, and the two nuts are respectively in threaded fit connection with the screw parts connected with the two sliding parts and force the two support rod parts to clamp, fix and adjust the seat.
The detachable connecting assembly comprises a plurality of locking screws and mounting grooves formed in the mounting frame, the locking screws are mounted on the mounting frame in a thread fit mode, and the end portions of the locking screws stretch into the mounting grooves.
The central line of the adjustable felt penetrates through the mounting groove along the extending direction of the mounting groove, and the locking screws are uniformly arranged around the central line of the adjustable felt at intervals.
The mounting groove is a groove which can be clamped and sleeved outside the outer cylinder of the outside micrometer frame unthreaded hole of the outside micrometer.
Compared with the prior art, the invention has the advantages that: according to the micrometer head indication error gauge of the outside micrometer, the positioning piece is adopted to position the relative positions of the adjustable measuring felt and the micrometer screw of the outside micrometer, so that the coincidence of the central line of the adjustable measuring felt and the central line of the micrometer screw can be ensured, the end face of the adjustable measuring felt is parallel to the end face of the micrometer screw, the measuring error can be reduced and avoided, and the measuring accuracy is greatly improved. In addition, only one positioning piece with a first positioning hole and a second positioning hole is needed, the positioning can be completed only by simple plugging operation, and the positioning device has the advantages of simple structure, low cost, simplicity and convenience in operation, and accuracy and reliability in positioning.
Drawings
Fig. 1 is a schematic perspective view of an outside micrometer indicating error checking fixture.
Fig. 2 is a schematic view of the bottom view structure of the micrometer head indication error checking fixture of the outside micrometer.
FIG. 3 is a schematic side view of the micrometer head error gauge of the micrometer caliper.
Fig. 4 is a schematic cross-sectional structure view of the positioning member.
Fig. 5 is a schematic perspective view of the adjustable felt installed on the adjusting base.
Illustration of the drawings:
1. a mounting frame; 11. a strut portion; 12. a chute; 13. installing a groove; 2. the felt can be measured; 3. a positioning member; 31. a first positioning hole; 32. a second positioning hole; 4. an adjusting seat; 41. a sliding part; 42. a screw section; 5. a nut; 6. and locking the screw.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in fig. 1 to 5, utensil is examined to external micrometer indicating value error of this embodiment, include mounting bracket 1 and install adjustable survey felt 2 on mounting bracket 1 through adjustable coupling assembling, mounting bracket 1 is equipped with and is used for installing the removable coupling assembling on the chi frame of external micrometer, utensil is examined to external micrometer indicating value error still includes the setting element 3 that is used for fixing a position adjustable survey felt 2 and external micrometer's micrometer screw rod's relative position, the one end of setting element 3 is equipped with and supplies adjustable survey felt 2 to insert the first locating hole 31 of location, the other end of setting element 3 is equipped with and supplies micrometer screw rod to insert the second locating hole 32 of location, the central line of first locating hole 31 and the coincidence of the central line of second locating hole 32. This utensil is examined to micrometer head indicating error of external micrometer when installing the chi frame of external micrometer, earlier insert adjustable survey felt 2 in the first locating hole 31 of location, insert the micrometer screw rod of external micrometer in the second locating hole 32 of location, the rethread can be dismantled coupling assembling and fix mounting bracket 1 and chi frame, can accomplish the installation of mounting bracket 1, make the central line of adjustable survey felt 2 and the coincidence of the central line of micrometer screw rod, guarantee that the terminal surface of adjustable survey felt 2 is parallel with the terminal surface of micrometer screw rod, adjust first locating hole 31 that adjustable survey felt 2 made its withdrawal through adjustable coupling assembling after the installation is accomplished, dismantle setting element 3, can adopt the gage block to detect. By adopting the micrometer head indicating error checking fixture for the outside micrometer, the coincidence of the central line of the adjustable testing felt 2 and the central line of the micrometer screw rod can be ensured, the end face of the adjustable testing felt 2 is parallel to the end face of the micrometer screw rod, the measuring error can be reduced and avoided, and the measuring accuracy is greatly improved. In addition, only one positioning piece 3 with a first positioning hole 31 and a second positioning hole 32 is needed, the positioning can be completed only by simple plugging operation, and the positioning device has the advantages of simple structure, low cost, simplicity and convenience in operation, and accuracy and reliability in positioning.
In this embodiment, the second positioning hole 32 is a tapered hole with a gradually decreasing aperture along the insertion direction of the micrometer screw, and the tapered hole can be inserted into micrometer screws with different diameters, so that the micrometer caliper is suitable for micrometers of different models, and the micrometer caliper head indication error gauge has good universality. Of course, in other embodiments, the second positioning hole 32 may be a cylindrical hole matching with a single-sized micrometer screw.
In this embodiment, preferably, the adjustable measuring felt 2 is a cylinder, and the first positioning hole 31 is a cylindrical hole.
In this embodiment, adjustable coupling assembling is including adjusting seat 4, adjusts seat 4 and establishes on mounting bracket 1 along the adjustable 2 central line directions of surveying the felt cunning, and adjustable survey felt 2 is installed on adjusting seat 4, and adjustable coupling assembling still includes the locking mechanism who is used for locking and release to adjust seat 4. The adjusting seat 4 can slide on the mounting frame 1 along the direction of the central line of the adjustable testing felt 2 to quickly adjust the position of the adjustable testing felt 2, so that the time for loading and unloading the positioning piece 3, zero adjustment of the adjustable testing felt 2 and loading and unloading the gauge block can be saved, the operation simplicity and the detection efficiency are improved, and meanwhile, the central line of the adjustable testing felt 2 can be ensured to be unchanged when the adjusting seat 4 is adjusted to any position, and the detection precision cannot be influenced.
In this embodiment, the mounting bracket 1 is provided with two supporting rod portions 11 arranged at intervals, the supporting rod portions 11 are provided with sliding grooves 12, the adjusting seat 4 is provided with two sliding portions 41 respectively arranged at two ends, and the two sliding portions 41 are respectively in sliding fit with the sliding grooves 12 of the two supporting rod portions 11 along the central line direction of the adjustable measuring felt 2. The connection matching structure has the advantages of simple and compact structure, easiness in manufacturing, low cost and good connection stability.
In this embodiment, an opening for the sliding portion 41 to enter and exit is formed at one end of the sliding groove 12 away from the mounting frame 1, so that the adjusting seat 4 can be conveniently mounted and dismounted, and the sliding groove 12 is easy and convenient to manufacture.
In this embodiment, the end surfaces at the two ends of the adjusting seat 4 respectively correspond to the two strut parts 11 and are abutted against each other, and the distance between the end surfaces at the two ends of the adjusting seat 4 is equal to the distance between the two strut parts 11, so that the position of the central line of the adjustable measuring felt 2 can be ensured to be unchanged.
In this embodiment, the locking mechanism includes two nuts 5, each sliding portion 41 is connected to a screw portion 42 extending out of the sliding slot 12, and the two nuts 5 are respectively connected to the screw portions 42 connected to the two sliding portions 41 in a screw-threaded fit manner and force the two strut portions 11 to clamp the fixed adjustment seat 4. The locking mechanism can lock and unlock the adjusting seat 4 only by simply screwing and loosening the two nuts 5, and has the advantages of simple structure, low cost, simplicity and convenience in operation, and stability and reliability in locking. Preferably, the nut 5 is a wing nut, which is convenient for operation.
In this embodiment, can dismantle coupling assembling includes a plurality of locking screws 6 and locates mounting groove 13 on the mounting bracket 1, and each locking screw 6 screw-thread fit installs on mounting bracket 1 and the tip stretches into in mounting groove 13. The mounting groove 13 is clamped and sleeved on a ruler frame of the outside micrometer, the locking screw 6 is screwed to fix and loosen the mounting frame 1, the position of the mounting frame 1 relative to the ruler frame can be adjusted, and the mounting device is simple in structure, stable and reliable in locking and simple and convenient to operate.
In this embodiment, the center line of the adjustable testing felt 2 penetrates through the mounting groove 13 along the extending direction of the mounting groove 13, and the plurality of locking screws 6 are uniformly arranged around the center line of the adjustable testing felt 2 at intervals. When the adjustable measuring felt 2 is inserted into the first positioning hole 31 and the micrometer screw is inserted into the second positioning hole 32, the mounting frame 1 can be fixed on the ruler frame by adjusting the locking screws 6. Preferably, the number of the locking screws 6 is three, so that the number of the locking screws 6 is reduced on the premise that the fixing is stable and reliable and the position of the center line of the adjustable measuring felt 2 is adjustable, and the cost is reduced.
In this embodiment, the mounting groove 13 is a groove capable of being clamped and sleeved on the outer cylindrical portion of the frame unthreaded hole of the outside micrometer. Because almost all outside micrometer's the shape of the chi frame unthreaded hole outer cylinder is unanimous, this kind of mounting groove 13 can be fine adaptation most outside micrometer, and fix on outside micrometer's the chi frame unthreaded hole outer cylinder, and its fixed position is reasonable, does benefit to the central line of guaranteeing adjustable survey felt 2 and the coincidence of the central line of micrometer screw rod, can guarantee to fix firm reliable.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the invention are to be considered as within the scope of the invention.
Claims (10)
1. The utility model provides an utensil is examined to first indicating value error of micrometer caliper, includes mounting bracket (1) and installs through adjustable coupling assembling adjustable survey felt (2) on mounting bracket (1), mounting bracket (1) is equipped with and is used for installing the dismantled coupling assembling on the chi frame of micrometer caliper, its characterized in that: the micrometer head indicating error gauge of the outside micrometer further comprises a positioning piece (3) for positioning the relative positions of the adjustable measuring felt (2) and the micrometer screw of the outside micrometer, a first positioning hole (31) for inserting and positioning the adjustable measuring felt (2) is arranged at one end of the positioning piece (3), a second positioning hole (32) for inserting and positioning the micrometer screw is arranged at the other end of the positioning piece (3), and the central line of the first positioning hole (31) coincides with the central line of the second positioning hole (32).
2. The micrometer caliper micrometer head indication error gauge according to claim 1, characterized in that: the second positioning hole (32) is a tapered hole with the aperture gradually reduced along the insertion direction of the micrometer screw.
3. The micrometer caliper micrometer head indication error gauge according to claim 1, characterized in that: adjustable coupling assembling is including adjusting seat (4), adjust seat (4) and establish on mounting bracket (1) along adjustable survey felt (2) central line direction cunning, adjustable survey felt (2) are installed adjust on seat (4), adjustable coupling assembling is still including being used for locking and releasing adjust the locking mechanism of seat (4).
4. The micrometer caliper micrometer head indication error gauge according to claim 3, characterized in that: mounting bracket (1) is equipped with branch portion (11) of two interval arrangements, branch portion (11) are equipped with spout (12), adjust seat (4) and be equipped with two sliding part (41) of locating both ends separately, two sliding part (41) correspond respectively with spout (12) of two branch portion (11) along adjustable survey felt (2) central line direction sliding fit.
5. The micrometer caliper micrometer head indication error gauge according to claim 4, characterized in that: one end of the sliding groove (12) far away from the mounting frame (1) is provided with an opening for the sliding part (41) to enter and exit.
6. The micrometer caliper micrometer head indication error gauge according to claim 4, characterized in that: the end faces at two ends of the adjusting seat (4) are respectively and correspondingly abutted against the two strut parts (11), and the distance between the end faces at two ends of the adjusting seat (4) is equal to the distance between the two strut parts (11).
7. The micrometer caliper micrometer head indication error gauge according to claim 4, characterized in that: the locking mechanism comprises two nuts (5), each sliding part (41) is connected with a screw part (42) extending out of the sliding groove (12), and the two nuts (5) are respectively in threaded fit connection with the screw parts (42) connected with the two sliding parts (41) and force the two support rod parts (11) to clamp and fix the adjusting seat (4).
8. The micrometer caliper head reading error gauge according to any one of claims 1 to 7, wherein: the detachable connecting assembly comprises a plurality of locking screws (6) and mounting grooves (13) formed in the mounting frame (1), each locking screw (6) is installed on the mounting frame (1) in a thread fit mode, and the end portion of each locking screw stretches into each mounting groove (13).
9. The micrometer caliper micrometer head indication error gauge according to claim 8, wherein: the central line of the adjustable testing felt (2) penetrates through the mounting groove (13) along the extending direction of the mounting groove (13), and the locking screws (6) are uniformly arranged around the central line of the adjustable testing felt (2) at intervals.
10. The micrometer caliper micrometer head indication error gauge according to claim 8, wherein: the mounting groove (13) is a groove which can be clamped and sleeved outside the outer cylinder of the outside diameter micrometer frame unthreaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111492797.8A CN114353632B (en) | 2021-12-08 | 2021-12-08 | Error gauge for measuring micrometer head indication value of outside micrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111492797.8A CN114353632B (en) | 2021-12-08 | 2021-12-08 | Error gauge for measuring micrometer head indication value of outside micrometer |
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| Publication Number | Publication Date |
|---|---|
| CN114353632A true CN114353632A (en) | 2022-04-15 |
| CN114353632B CN114353632B (en) | 2024-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111492797.8A Active CN114353632B (en) | 2021-12-08 | 2021-12-08 | Error gauge for measuring micrometer head indication value of outside micrometer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003010932A (en) * | 2001-06-25 | 2003-01-15 | Alps Electric Co Ltd | Positioning device for processing member for press |
| CN201548149U (en) * | 2009-09-21 | 2010-08-11 | 浙江吉利汽车有限公司 | Large-scale outer diameter micrometer indication error verification fixture |
| CN208349947U (en) * | 2018-05-23 | 2019-01-08 | 慈溪汇丽机电股份有限公司 | A kind of micrometer calibrated mount |
| CN211696201U (en) * | 2020-03-13 | 2020-10-16 | 福建省锐驰智能技术研究院有限责任公司 | Reflective lens holder positioning groove precision gauge |
| CN214950957U (en) * | 2021-07-14 | 2021-11-30 | 苏州创博检测技术有限公司 | Device for detecting indication error of outside micrometer |
-
2021
- 2021-12-08 CN CN202111492797.8A patent/CN114353632B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003010932A (en) * | 2001-06-25 | 2003-01-15 | Alps Electric Co Ltd | Positioning device for processing member for press |
| CN201548149U (en) * | 2009-09-21 | 2010-08-11 | 浙江吉利汽车有限公司 | Large-scale outer diameter micrometer indication error verification fixture |
| CN208349947U (en) * | 2018-05-23 | 2019-01-08 | 慈溪汇丽机电股份有限公司 | A kind of micrometer calibrated mount |
| CN211696201U (en) * | 2020-03-13 | 2020-10-16 | 福建省锐驰智能技术研究院有限责任公司 | Reflective lens holder positioning groove precision gauge |
| CN214950957U (en) * | 2021-07-14 | 2021-11-30 | 苏州创博检测技术有限公司 | Device for detecting indication error of outside micrometer |
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| CN114353632B (en) | 2024-07-30 |
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