CN204388774U - Inner diameter measurement structure - Google Patents
Inner diameter measurement structure Download PDFInfo
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- CN204388774U CN204388774U CN201520001510.0U CN201520001510U CN204388774U CN 204388774 U CN204388774 U CN 204388774U CN 201520001510 U CN201520001510 U CN 201520001510U CN 204388774 U CN204388774 U CN 204388774U
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- measuring head
- sensor
- sliding seat
- movable measuring
- wimet
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Abstract
A kind of inner diameter measurement structure, comprise the sensor be fixed on sensor mounting blocks, fixation measuring head and movable measuring head, described fixation measuring head and movable measuring head form a cylindrical probe with chamfering jointly, and have gap between fixation measuring head and movable measuring head; Movable measuring head is fixed in sliding seat, and sliding seat two ends are provided with a pair spring leaf, and along the radial direction activity of cylindrical probe in the deformation range that spring leaf allows; One end of sliding seat is provided with hard alloy head, and this hard alloy head and sensor match; Described fixation measuring head is provided with three pieces of wimet bars, described movable measuring head is provided with one piece of wimet bar, these four pieces of wimet bars are spaced is 90 degree.It is suitable for the repetition measurement work to size workpiece of the same race on streamline, and the difference between the internal diameter of circular hole and preset value can be fed back to sensor by movable measuring head and sliding seat, can realize automatic test.
Description
Technical field
The utility model relates to a kind of measurement mechanism, particularly the inner diameter measurement structure of circular hole on a kind of workpiece.
Background technology
In manufacture field, the accurate measurement of the crucial aperture (the inner ring aperture as bearing) of product is very important. the inspection station on streamline, will carry out the surveying work of a large amount of repeatability every day, whether checker adopts each aperture size of milscale manual examination (check) workpiece suitable, due to measuring position, the problems such as reading angle, manual detection not only efficiency is low, and can produce certain error, misreads, even can be undetected by defective products, cause subsequent work stations to dismantle various problems such as doing over again.
Summary of the invention
The purpose of this utility model is to provide one and is fixed on test board, measures precisely, easy to operate circular hole inner diameter measurement structure.
In order to solve technical matters recited above, the utility model is by the following technical solutions: a kind of inner diameter measurement structure, comprise the sensor be fixed on sensor mounting blocks, fixation measuring head and movable measuring head, it is characterized in that: fixation measuring head and movable measuring head form a cylindrical probe with chamfering jointly, and have gap between fixation measuring head and movable measuring head; Movable measuring head is fixed in sliding seat, and sliding seat two ends are provided with a pair spring leaf, and along the radial direction activity of cylindrical probe in the deformation range that spring leaf allows; One end of sliding seat is provided with hard alloy head, and this hard alloy head and sensor match.
Described fixation measuring head is provided with three pieces of wimet bars, described movable measuring head is provided with one piece of wimet bar, these four pieces of wimet bars are spaced is 90 degree.
The end of described wimet bar is provided with chamfering.
Described a pair spring leaf be arranged in parallel along the axis of cylindrical probe.
Described sensor is inductance type transducer.
Described sensor is arranged on one end of sensor mounting blocks by sensor fixed block.
Compared to prior art, the utility model has the advantage of: it is coordinated by fixation measuring head and movable measuring head, measure circular hole internal diameter, and by movable measuring head because the inwall of circular hole extrudes the deformation caused, feed back to by the sliding seat be connected with movable measuring head the sensor be arranged on measuring seat and carry out measuring and record.
Sensor selected by it does not limit by physical dimension, and the induction end of sensor does not need directly to extend in the hole of required test, and without plugging the wearing and tearing caused, thus the serviceable life of sensor is longer.The wearing and tearing that four wimet bars of its cylindrical probe end configuration can be avoided measuring head repeatedly to plug and cause, and reduce the cost of measurement mechanism.
It is suitable for the repetition measurement work to size workpiece of the same race on streamline, and particularly error range is less, and the larger same specification workpiece of quantity is measured, measurement result directly by single-chip microcomputer or PC feedback and record, without the need to manual record measurement result.It also can be fixed on test board, combines with drive apparatus, realizes automatic test.
Accompanying drawing explanation
Fig. 1 is stereographic map of the present utility model (in figure, sensor omits).
Fig. 2 is upward view of the present utility model (in figure, sensor omits).
Fig. 3 is structure cut-open view of the present utility model.
Wherein, 1 is fixation measuring head mount pad, and 2 is rear connectors, 3 is fixation measuring head, and 4 is sliding seat, and 5 is movable measuring head, 6 is the first spring leaf, and 7 is the second spring leaf, and 8 is the first fixed block, 9 is the second fixed block, 10 is hard alloy head, and 11 is wimet bar, and 12 is sensor, 13 is sensor mounting blocks, and 14 is sensor fixed block.
Embodiment
As shown in Figure 1, a kind of inner diameter measurement structure of circular hole, wherein sensor mounting blocks 13 is base, and it is for installing other parts and being used for being fixedly connected with other equipment (as test board, desktop etc.).
The below of sensor mounting blocks 13 is provided with rear connectors 2, and the upper left corner is provided with sensor fixed block 14, and sensor is fixed on sensor fixed block.What select in embodiment is inductance type transducer, and it is connected with single-chip microcomputer or PC, detects the position of the hard alloy head 10 be arranged in sliding seat 4, and data feedback is carried out data statistics and process to single-chip microcomputer or PC, give the alarm to defective products.
Fixation measuring head 3O is arranged on rear connectors 2 by fixation measuring head mount pad 1.Fixation measuring head is provided with three pieces of wimet bars 11.
Fixation measuring head mount pad 1 is also provided with the first spring leaf 6 and the second spring leaf 7, and fixes respectively by the first fixed block 8 and the second fixed block 9.First spring leaf and the second spring leaf parallel to each other, and to be connected with sliding seat 4.Sliding seat is provided with movable measuring head 5, movable measuring head is also provided with one piece of wimet bar 11.Fixation measuring head and movable measuring head form a cylindrical probe with chamfering jointly.Under the effect of the first spring leaf and the second spring leaf, between movable measuring head and fixation measuring head, form gap together.This gap permission activity measuring head when the circular hole of measuring workpieces moves to direction, the center of circle.
Four wimet bar 11 Precise Grinding on cylindrical probe are to being slightly less than circular hole internal diameter workpiece needing measure.
During test, owing to sliding seat being provided with the first spring leaf and the second spring leaf, when the measured hole of workpiece inserts cylindrical probe, three pieces of wimet bars on fixation measuring head withstand the inwall of circular hole, and movable measuring head is extruded by the inwall of circular hole, axle center place to probe shrinks, and the gap width between movable measuring head and fixation measuring head reduces.The movement of movable measuring head directly drives sliding seat to move.The change of hard alloy head position that sensor 12 will accurately be measured in sliding seat 4, and this data feedback is processed to single-chip microcomputer or PC, calculate the exact value in aperture on workpiece.
Claims (6)
1. an inner diameter measurement structure, comprise the sensor (12) be fixed on sensor mounting blocks (13), fixation measuring head (3) and movable measuring head (5), it is characterized in that: fixation measuring head (3) and movable measuring head (5) be a composition cylindrical probe with chamfering jointly, and has gap between fixation measuring head and movable measuring head; Movable measuring head is fixed in sliding seat (4), and the two ends of sliding seat (4) are provided with a pair spring leaf, and sliding seat (4) in the deformation range that spring leaf allows along the radial direction activity of cylindrical probe; One end of sliding seat (4) is provided with hard alloy head (10), and this hard alloy head and sensor (12) match.
2. inner diameter measurement structure according to claim 1, it is characterized in that: described fixation measuring head (3) is provided with three pieces of wimet bars (11), described movable measuring head (5) is provided with one piece of wimet bar (11), these four pieces of wimet bars each other be spaced apart 90 degree.
3. inner diameter measurement structure according to claim 2, is characterized in that: the end of described wimet bar (11) is provided with chamfering.
4. inner diameter measurement structure according to claim 1, is characterized in that: described a pair spring leaf be arranged in parallel along the axis of cylindrical probe.
5. inner diameter measurement structure according to claim 1, is characterized in that: described sensor is inductance type transducer.
6. inner diameter measurement structure according to claim 1, is characterized in that: described sensor (12) is arranged on one end of sensor mounting blocks (13) by sensor fixed block (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520001510.0U CN204388774U (en) | 2015-01-04 | 2015-01-04 | Inner diameter measurement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520001510.0U CN204388774U (en) | 2015-01-04 | 2015-01-04 | Inner diameter measurement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204388774U true CN204388774U (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520001510.0U Active CN204388774U (en) | 2015-01-04 | 2015-01-04 | Inner diameter measurement structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN204388774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871175A (en) * | 2017-05-11 | 2018-11-23 | 西华大学 | A kind of workpiece diameter checking system based on memristor |
-
2015
- 2015-01-04 CN CN201520001510.0U patent/CN204388774U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871175A (en) * | 2017-05-11 | 2018-11-23 | 西华大学 | A kind of workpiece diameter checking system based on memristor |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |