CN114353632B - Error gauge for measuring micrometer head indication value of outside micrometer - Google Patents
Error gauge for measuring micrometer head indication value of outside micrometer Download PDFInfo
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- CN114353632B CN114353632B CN202111492797.8A CN202111492797A CN114353632B CN 114353632 B CN114353632 B CN 114353632B CN 202111492797 A CN202111492797 A CN 202111492797A CN 114353632 B CN114353632 B CN 114353632B
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- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 3
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- 238000001514 detection method Methods 0.000 abstract description 21
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Abstract
The invention discloses a micrometer head indication error detection tool of an outside micrometer, which comprises a mounting frame and an adjustable measurement felt mounted on the mounting frame through an adjustable connection assembly, wherein the mounting frame is provided with a detachable connection assembly used for being mounted on a micrometer frame of the outside micrometer, the micrometer head indication error detection tool of the outside micrometer also comprises a positioning piece used for positioning the relative positions of the adjustable measurement felt and a micrometer screw of the outside micrometer, one end of the positioning piece is provided with a first positioning hole for inserting and positioning the adjustable measurement felt, the other end of the positioning piece is provided with a second positioning hole for inserting and positioning the micrometer screw, and the center line of the first positioning hole is coincident with the center line of the second positioning hole. The outside micrometer head indication error gauge has the advantages of simple structure, low cost, simple and convenient operation, accurate and reliable positioning, high measurement accuracy and the like.
Description
Technical Field
The invention relates to the technical field of detection tools, in particular to a detection tool for an outside micrometer head indication value error.
Background
According to the regulation of JJG21-2008 micrometer verification regulations, a micrometer with the upper measurement limit larger than 150mm can only detect the micrometer head indication error. When the measuring range of the micrometer head is (0-25) mm, small blocks of 5.12mm, 10.24mm, 15.36mm, 21.50mm and 25.00mm are respectively arranged between the end face of the micrometer screw and the end face of the measuring felt to finish the verification of the micrometer head indication value error.
The special detection tool is similar to the exemplary detection tool in JF1088-2015 'large-size outside micrometer calibration standard', the detection tool mainly comprises a tripod support structure and an adjustable detection felt arranged on the tripod support structure through a screw, the tripod support structure is detachably arranged on the arc-shaped part of the micrometer frame through a clamping mechanism and a fastening piece with fixed size, the end face of the adjustable detection felt is parallel to the end face of the micrometer screw after the detection tool is arranged on the micrometer frame, so that measurement accuracy can be guaranteed, and when the detection tool is used, the angle of the end face of the adjustable detection felt is adjusted and controlled through adjusting and controlling the installation position and the angle of the tripod support structure by means of manual experience, so that the end face of the adjustable detection felt is difficult to be parallel to the end face of the micrometer screw, and measurement errors exist. Meanwhile, the screw is adopted to adjust the position of the adjustable felt, so that the defects of low efficiency and complex operation exist, and the detection efficiency is greatly reduced. And, because the micrometer frame shape and the size of the micrometer of different producer, model are different, the card sleeve mechanism of fixed size can't realize the stable centre gripping fixed on all micrometer frames, and its commonality is poor, and the combination of tripod structure and fixture still has the shortcoming that the structure is complicated, the preparation degree of difficulty is big, loading and unloading and regulation degree of difficulty are big.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects existing in the prior art and providing the error detection tool for the micrometer outside micrometer head indication value, which has the advantages of simple structure, low cost, simple and convenient 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 outside micrometer head indication error examines utensil, includes the mounting bracket and installs through adjustable coupling assembling adjustable felt on the mounting bracket, the mounting bracket is equipped with and is used for installing the detachable coupling assembling on the micrometer frame of outside micrometer, outside micrometer head indication error examines utensil still including being used for carrying out the setting element that fixes a position to the relative position of adjustable micrometer screw rod of measuring felt and outside micrometer, the one end of setting element is equipped with the first locating hole that supplies adjustable micrometer felt to insert the location, the other end of setting element is equipped with the second locating hole that supplies micrometer screw rod to insert the location, the central line in first locating hole and the central line coincidence in second locating hole.
As a further improvement of the above technical scheme:
the second positioning hole is a conical hole with the aperture gradually reduced along the insertion direction of the micrometer screw.
The adjustable connecting assembly comprises an adjusting seat, the adjusting seat is slidably arranged on the mounting frame along the central line direction of the adjustable measuring felt, the adjustable measuring felt is mounted on the adjusting seat, and the adjustable connecting assembly further comprises a locking mechanism for locking and releasing the adjusting seat.
The installation rack is provided with two supporting rod parts which are arranged at intervals, the supporting rod parts are provided with sliding grooves, the adjusting seat is provided with two sliding parts which are respectively arranged at two ends, and the two sliding parts are respectively correspondingly matched with the sliding grooves of the two supporting rod parts along the direction of the central line of the adjustable felt.
One end of the sliding groove far away from the mounting frame is provided with an opening for the sliding part to enter and exit.
The end surfaces at two ends of the adjusting seat are respectively and correspondingly propped against the two supporting rod parts, and the distance between the end surfaces at two ends of the adjusting seat is equal to the distance between the two supporting rod parts.
The locking mechanism comprises two nuts, each sliding part is connected with a screw rod part extending out of the sliding groove, and the two nuts are correspondingly connected with the screw rod parts connected with the two sliding parts in a threaded fit manner and force the two support rod parts to clamp and fix the adjusting 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 threaded fit mode, and the end portions of the locking screws extend into the mounting grooves.
The central line of the adjustable test mat penetrates through the mounting groove along the extending direction of the mounting groove, and a plurality of locking screws are uniformly arranged at intervals around the central line of the adjustable test mat.
The mounting groove is a groove which can be sleeved outside the outer cylinder of the scale holder unthreaded hole of the outside micrometer.
Compared with the prior art, the invention has the advantages that: according to the outside micrometer head indication error detection tool, the positioning piece is used for positioning 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 measurement error can be reduced and avoided, and the measurement accuracy is greatly improved. And moreover, the positioning can be finished by only adopting a positioning piece with a first positioning hole and a second positioning hole and 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 error gauge for an outside micrometer head.
Fig. 2 is a schematic bottom view of the error gauge for the outside micrometer head.
Fig. 3 is a schematic side view of an outside micrometer head indicating error gauge.
Fig. 4 is a schematic cross-sectional view of the positioning member.
Fig. 5 is a schematic perspective view of an adjustable felt mounted on an adjustment seat.
Legend description:
1. A mounting frame; 11. a strut section; 12. a chute; 13. a mounting groove; 2. an adjustable test mat; 3. a positioning piece; 31. a first positioning hole; 32. a second positioning hole; 4. an adjusting seat; 41. a sliding part; 42. a screw portion; 5. a nut; 6. locking screws.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples.
As shown in fig. 1 to 5, the outside micrometer error gauge comprises a mounting frame 1 and an adjustable measuring felt 2 mounted on the mounting frame 1 through an adjustable connecting component, wherein the mounting frame 1 is provided with a detachable connecting component mounted on a micrometer frame of the outside micrometer, the outside micrometer error gauge further comprises a positioning piece 3 for positioning the relative positions of the adjustable measuring felt 2 and a micrometer screw of the outside micrometer, one end of the positioning piece 3 is provided with a first positioning hole 31 for inserting and positioning the adjustable measuring felt 2, the other end of the positioning piece 3 is provided with a second positioning hole 32 for inserting and positioning the micrometer screw, and the center line of the first positioning hole 31 coincides with the center line of the second positioning hole 32. When the outside micrometer head indicating value error detection tool is installed on a micrometer frame of the outside micrometer, the adjustable measuring felt 2 is inserted into the first positioning hole 31 positioned, a micrometer screw of the outside micrometer is inserted into the second positioning hole 32 positioned, the installation of the installation frame 1 can be completed through the detachable connecting component to fix the installation frame 1 and the micrometer frame, the center line of the adjustable measuring felt 2 is enabled to coincide with the center line of the micrometer screw, the end face of the adjustable measuring felt 2 is enabled to be parallel to the end face of the micrometer screw, after the installation is completed, the adjustable measuring felt 2 is adjusted through the adjustable connecting component to enable the adjustable measuring felt 2 to exit from the first positioning hole 31, the positioning piece 3 is detached, and the gauge block can be used for detection. By adopting the error gauge for the micrometer head indication value of the outside micrometer, the coincidence of the central line of the adjustable measuring felt 2 and the central line of the micrometer screw rod can be ensured, and the end face of the adjustable measuring felt 2 is parallel to the end face of the micrometer screw rod, so that the measuring error can be reduced and avoided, and the measuring accuracy is greatly improved. In addition, the positioning piece 3 with the first positioning hole 31 and the second positioning hole 32 is only needed, and the positioning can be finished by simple plugging operation, so that 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 reduced aperture along the insertion direction of the micrometer screw, and the tapered hole can be inserted into micrometer screws with different diameters, so as to adapt to micrometer of different types, and make the error detection tool for the micrometer head indication of the outside micrometer have good versatility. Of course, in other embodiments, the second positioning hole 32 may be a cylindrical hole that mates with a single-sized micrometer screw.
In this embodiment, the adjustable felt 2 is preferably a cylinder, and the first positioning hole 31 is a cylindrical hole.
In this embodiment, adjustable coupling assembling includes adjusting seat 4, and adjusting seat 4 slides along adjustable survey felt 2 central line direction and establishes on mounting bracket 1, 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 adjusting seat 4. The adjusting seat 4 can slide on the mounting frame 1 along the central line direction of the adjustable measuring felt 2 to realize the position of the adjustable measuring felt 2 to be adjusted fast, save the time of loading and unloading of the locating piece 3, zero adjustment of the adjustable measuring felt 2 and loading and unloading of the gauge block, improve the operation simplicity and the detection efficiency, and simultaneously ensure that the central line of the adjustable measuring felt 2 is unchanged when the adjusting seat 4 is adjusted to any position, and the detection precision is not influenced.
In this embodiment, the mounting frame 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 correspondingly matched with the sliding grooves 12 of the two supporting rod portions 11 in a sliding manner along the central line direction of the adjustable felt 2. The connecting and matching structure has the advantages of simple and compact structure, easiness in manufacturing, low cost and good connecting stability.
In this embodiment, an opening for the sliding portion 41 to enter and exit is provided at one end of the sliding slot 12 away from the mounting frame 1, so that the adjusting seat 4 can be conveniently assembled and disassembled, and the sliding slot 12 is easy to manufacture.
In this embodiment, the end surfaces at two ends of the adjusting seat 4 respectively support against the two strut portions 11, and the distance between the end surfaces at two ends of the adjusting seat 4 is equal to the distance between the two strut portions 11, so that the position of the center line of the adjustable test mat 2 is ensured to be unchanged.
In this embodiment, the locking mechanism includes two nuts 5, each sliding portion 41 is connected with a screw portion 42 extending to the outside of the chute 12, and the two nuts 5 are correspondingly connected with the screw portions 42 connected with the two sliding portions 41 in a threaded fit manner and force the two strut portions 11 to clamp and fix the adjusting seat 4. The locking mechanism can lock and unlock the adjusting seat 4 by simply screwing and unscrewing the two nuts 5, and has the advantages of simple structure, low cost, simple operation, stable and reliable locking. Preferably, the nut 5 is a butterfly nut, so that the operation is convenient.
In this embodiment, the detachable connection assembly includes a plurality of locking screws 6 and a mounting groove 13 provided on the mounting frame 1, and each locking screw 6 is mounted on the mounting frame 1 in a threaded fit and the end portion thereof extends into the mounting groove 13. The mounting groove 13 is sleeved on the frame of the outside micrometer, and the locking screw 6 is screwed again to fix and loosen the mounting frame 1, so that the position of the mounting frame 1 relative to the frame can be adjusted, and the outside micrometer is simple in structure, stable and reliable in locking and simple and convenient to operate.
In this embodiment, the center line of the adjustable test mat 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 spaced around the center line of the adjustable test mat 2. When the adjustable measuring felt 2 is inserted into the first positioning hole 31 and the measuring screw is inserted into the second positioning hole 32, the mounting frame 1 can be fixed on the frame by adjusting each locking screw 6, and the structure is stably and reliably installed and can adapt to the frames with different sizes and shapes in a certain range. Preferably, the number of the locking screws 6 is reduced on the premise of ensuring the stability and reliability of fixation and the central line position of the adjustable measuring felt 2, thereby being beneficial to reducing the cost.
In this embodiment, the mounting groove 13 is a groove that can be snapped outside the outer cylinder of the holder light hole of the outside micrometer. Because the shape of the outer cylinder of the scale holder light hole of almost all outside micrometer is the same, the installation groove 13 can be well adapted to most outside micrometer, and is fixed on the outer cylinder of the scale holder light hole of outside micrometer, the fixing position is reasonable, the coincidence of the central line of the adjustable measuring felt 2 and the central line of the micrometer screw rod can be ensured, and the fixation is stable and reliable.
The above description is merely a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above examples. Modifications and variations which would be obvious to those skilled in the art without departing from the spirit of the invention are also considered to be within the scope of the invention.
Claims (10)
1. The utility model provides an outside micrometer head indication error examines utensil, includes mounting bracket (1) and installs through adjustable coupling assembling adjustable survey felt (2) on mounting bracket (1), mounting bracket (1) are equipped with and are used for installing the detachable coupling assembling on the micrometer frame of outside micrometer, its characterized in that: the outside micrometer head indication error gauge further comprises a positioning piece (3) used for positioning the relative positions of the adjustable measuring felt (2) and the micrometer screw rod of the outside micrometer, a first positioning hole (31) for inserting and positioning the adjustable measuring felt (2) is formed in one end of the positioning piece (3), a second positioning hole (32) for inserting and positioning the micrometer screw rod is formed in the other end of the positioning piece (3), and the center line of the first positioning hole (31) is overlapped with the center line of the second positioning hole (32).
2. The outside micrometer head indication error gauge of claim 1, wherein: the second positioning hole (32) is a conical hole with gradually reduced aperture along the insertion direction of the micrometer screw.
3. The outside micrometer head indication error gauge of claim 1, wherein: the adjustable connecting assembly comprises an adjusting seat (4), the adjusting seat (4) is slidably arranged on the mounting frame (1) along the central line direction of the adjustable measuring felt (2), the adjustable measuring felt (2) is arranged on the adjusting seat (4), and the adjustable connecting assembly further comprises a locking mechanism for locking and releasing the adjusting seat (4).
4. The outside micrometer head indication error gauge of claim 3, wherein: the installation frame (1) is provided with two supporting rod parts (11) which are arranged at intervals, the supporting rod parts (11) are provided with sliding grooves (12), the adjusting seat (4) is provided with two sliding parts (41) which are respectively arranged at two ends, and the two sliding parts (41) are respectively correspondingly matched with the sliding grooves (12) of the two supporting rod parts (11) in a sliding manner along the central line direction of the adjustable measuring felt (2).
5. The outside micrometer head indication error gauge of claim 4, wherein: 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 outside micrometer head indication error gauge of claim 4, wherein: the end surfaces at two ends of the adjusting seat (4) are respectively and correspondingly propped against the two supporting rod parts (11), and the distance between the end surfaces at two ends of the adjusting seat (4) is equal to the distance between the two supporting rod parts (11).
7. The outside micrometer head indication error gauge of claim 4, wherein: the locking mechanism comprises two nuts (5), each sliding part (41) is connected with a screw rod part (42) extending out of the sliding groove (12), and the two nuts (5) are correspondingly connected with the screw rod parts (42) connected with the two sliding parts (41) in a threaded fit mode respectively and force the two support rod parts (11) to clamp and fix the adjusting seat (4).
8. The outside micrometer head indication error gauge according to any one of claims 1-7, wherein: the detachable connecting assembly comprises a plurality of locking screws (6) and mounting grooves (13) formed in the mounting frame (1), wherein each locking screw (6) is mounted on the mounting frame (1) in a threaded fit mode, and the end portion of each locking screw extends into each mounting groove (13).
9. The outside micrometer head indication error gauge of claim 8, wherein: the central line of the adjustable measurement 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 at intervals around the central line of the adjustable measurement felt (2).
10. The outside micrometer head indication error gauge of claim 8, wherein: the mounting groove (13) is a groove which can be sleeved outside the outer cylinder of the scale holder unthreaded hole of the outside micrometer.
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 |
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| 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 |
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| CN114353632A CN114353632A (en) | 2022-04-15 |
| CN114353632B true CN114353632B (en) | 2024-07-30 |
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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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (3)
| 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 |
| 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN114353632A (en) | 2022-04-15 |
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