CN208333303U - It is a kind of using center hole as the axial part measurer of measuring basis - Google Patents
It is a kind of using center hole as the axial part measurer of measuring basis Download PDFInfo
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- CN208333303U CN208333303U CN201821126336.2U CN201821126336U CN208333303U CN 208333303 U CN208333303 U CN 208333303U CN 201821126336 U CN201821126336 U CN 201821126336U CN 208333303 U CN208333303 U CN 208333303U
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- China
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- standard ball
- ball cover
- mandril
- center hole
- positioning clamping
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Abstract
This application involves a kind of using center hole as the axial part measurer of measuring basis, including 2 positioning clamping components；The positioning clamping component includes bracket, mandril, standard ball cover group and compact heap；Standard ball cover group includes interchangeable standard ball cover and standard ball, and standard ball is fixed on the end face of interchangeable standard ball cover；Interchangeable standard ball cover is sleeved on one end of mandril 4, the other end of mandril is fixed with rotation hand wheel, in the middle part of mandril and bracket is threaded engagement, measured workpiece supporting groove is provided on bracket, 2 positioning clamping components are co-axially mounted, the both ends of measured workpiece are respectively supported in the supporting groove of two positioning clamping components, and 2 compact heaps spiral-lock and are fixed on 2 brackets respectively.Suitable for the detection of the Shape and Position Tolerance for Shaft Parts on the basis of center hole, it is more suitable for the detection method of center hole benchmark, promotes the detection accuracy of such part.
Description
Technical field
The utility model belongs to the field of test technology, and in particular to a kind of to survey by the axial workpiece of measuring basis of center hole
Measure device.
Background technique
Axial workpiece is a kind of common machining product.To guarantee processing quality, generally can all morpheme be carried out to it
Tolerance detection.According to the feature of axial workpiece, the design drawing of part axial workpiece is using center hole as benchmark.To guarantee detection
The consistency of benchmark and design basis, should be using center hole as measuring basis in the geometric tolerance detection for carrying out product.
But because of the particularity of center hole, it has not been convenient to be applied to the measurement of geometric tolerance directly as detection benchmark.At this stage for
General select of axial workpiece detection of center hole benchmark is substituted with the line of centres of top axially bored line circular concentric.But it is this
There are many problems, such as substitution benchmark to reappear the shape feature of center hole completely for benchmark alternative, while also can
Other mismachining tolerances are brought among detection, so that testing result cannot reflect product quality strictly according to the facts.
Utility model content
The purpose of the utility model is to provide a kind of using center hole as the axial part measurer of measuring basis, solves
It the technical issues of existing substitution benchmark cannot reappear the shape feature of center hole completely, avoids mismachining tolerance and brings into detection,
Improve detection accuracy.
The technical solution of the utility model is, a kind of to include 2 by the axial part measurer of measuring basis of center hole
A positioning clamping component；
The positioning clamping component includes bracket, mandril, standard ball cover group and compact heap；Standard ball cover group includes can dehorn
Quasi- ball cover and standard ball, standard ball are fixed on the end face of interchangeable standard ball cover；Interchangeable standard ball cover is sleeved on the one of mandril 4
End, the other end of mandril are fixed with rotation hand wheel, and mandril middle part is threaded engagement with bracket, are provided with measured workpiece branch on bracket
Groove is supportted, 2 positioning clamping components are co-axially mounted, and the both ends of measured workpiece are respectively supported at the support of two positioning clamping components
On groove, 2 compact heaps spiral-lock and are fixed on 2 brackets respectively.
The utility model has the beneficial effects that the measuring device of the utility model presses standard ball into base in measurement
In quasi- hole, need to only three coordinate measuring machine be used to measure standard ball, the detection benchmark for meeting top hole characteristic can be formed,
The more comprehensively shape characteristic of reflection center hole, and other errors will not be introduced；The benchmark of the utility model can be more objective
Reappear center hole benchmark, so that the more accurate science of the measurement of part geometric tolerance；The utility model is suitable for center hole
The detection of the Shape and Position Tolerance for Shaft Parts of benchmark is more suitable for the detection method of center hole benchmark, promotes the detection essence of such part
Degree.
Detailed description of the invention
Fig. 1 is that the utility model is a kind of using center hole as the structural schematic diagram of the axial part measurer of measuring basis；
Fig. 2 is the structural schematic diagram that clamping component is positioned in the utility model；
Fig. 3 is the schematic diagram of the utility model Plays ball cover group.
Specific embodiment
The technical solution of the utility model is described in further detail in conjunction with Figure of description.
As shown in Figure 1, the utility model is a kind of fixed including 2 by the axial part measurer of measuring basis of center hole
Position clamping component 6.
Positioning clamping component 6 includes bracket 1, fishbolt 2, mandril 4, standard ball cover group 5 and compact heap 8.Standard ball cover
Group 5 includes interchangeable standard ball cover 3 and standard ball.
Standard ball is fixed on the end face of interchangeable standard ball cover 3, constitutes standard ball cover group 5.Interchangeable standard ball cover 3 is sleeved on
One end of mandril 4, the other end of mandril 4 are fixed with rotation hand wheel, and 4 middle part of mandril and bracket 1 are threaded engagement.It is set on bracket 1
It is equipped with measured workpiece supporting groove.In use, two devices are co-axially mounted using the device of two the utility model, it is tested work
The both ends of part are respectively supported in the supporting groove of two devices, and fixed by screw and compact heap 8 and bracket 1 respectively.Make
Used time, using multiple standard ball cover groups 5, the standard ball in multiple standard ball cover groups 5 is respectively the standard ball of different-diameter, thus
Realize the versatility of the utility model.
The method detected using the device of the utility model are as follows:
The first step prepares before measuring
1, standard ball cover group 5 is installed, according to the corresponding standard ball cover group 5 of the center hole size selection of tested shaft-like workpiece,
And standard ball cover group 5 is installed on to one end of mandril 4；
2, two devices are respectively arranged in the both ends of tested shaft-like workpiece, and are clamped by fishbolt, so that device
It is stably fixed at the both ends of measured axis；
3, by rotating the winding device at both ends, standard ball is compressed in the center hole of tested part, guarantees standard ball
It is fitted closely with center hole；
Second step, measurement,
1, start three coordinate measuring machine, demarcate stylus, standard ball is measured using three coordinate measuring machine, passes through measurement
Determine the centre of sphere link position of two standard balls, so that detection benchmark is established,
2, tested part is measured；
6 and the data obtained is handled, finally obtains the measurement result of Shape and Position Tolerance for Shaft Parts.
When carrying out geometric tolerance detection to shaft-like workpiece, generally use three coordinate measuring machine as measuring device.Three coordinates
Measuring machine is a kind of equipment that can be measured in spatial dimension to the size of part and geometric tolerance, passes through connecing for stylus
The mode of touch sampling site carries out operation to the shaped position of part in the form of point set coordinate value in space coordinates.But because
It is difficult to directly measure center hole for the stylus of three coordinate measuring machine, and a large amount of form error can be brought into measurement process,
The utility model realizes the conversion to center hole benchmark.
Claims (1)
1. it is a kind of using center hole as the axial part measurer of measuring basis, it is characterized in that: the measuring device includes 2 positioning
Clamping component (6)；
The positioning clamping component (6) includes bracket (1), mandril (4), standard ball cover group (5) and compact heap (8)；Standard ball cover
Group (5) includes interchangeable standard ball cover (3) and standard ball, and standard ball is fixed on the end face of interchangeable standard ball cover (3)；Interchangeable standard
Ball cover (3) is sleeved on one end of mandril (4), and the other end of mandril (4) is fixed with rotation hand wheel, in the middle part of mandril (4) with bracket (1)
For threaded engagement, it is provided with measured workpiece supporting groove on bracket (1), 2 positioning clamping components (6) are co-axially mounted, and are tested work
The both ends of part are respectively supported in the supporting groove of two positioning clamping component (6), spiral-lock and the fixation respectively of 2 compact heaps (8)
On 2 brackets (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821126336.2U CN208333303U (en) | 2018-07-17 | 2018-07-17 | It is a kind of using center hole as the axial part measurer of measuring basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821126336.2U CN208333303U (en) | 2018-07-17 | 2018-07-17 | It is a kind of using center hole as the axial part measurer of measuring basis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208333303U true CN208333303U (en) | 2019-01-04 |
Family
ID=64784061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821126336.2U Active CN208333303U (en) | 2018-07-17 | 2018-07-17 | It is a kind of using center hole as the axial part measurer of measuring basis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208333303U (en) |
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2018
- 2018-07-17 CN CN201821126336.2U patent/CN208333303U/en active Active
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