CN203811109U - Hole end face verticality testing fixture applied to mounting holes with chamfers - Google Patents
Hole end face verticality testing fixture applied to mounting holes with chamfers Download PDFInfo
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- CN203811109U CN203811109U CN201420089975.1U CN201420089975U CN203811109U CN 203811109 U CN203811109 U CN 203811109U CN 201420089975 U CN201420089975 U CN 201420089975U CN 203811109 U CN203811109 U CN 203811109U
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- core bar
- hole
- sleeve
- rotary sleeve
- free end
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Abstract
The utility model provides a hole end face verticality testing fixture applied to mounting holes with chamfers. The hole end face verticality testing fixture comprises a testing fixture body and a dial indicator, a rotary mechanism sleeves an upper part of a core bar of the testing fixture body, and a lower part of the core bar is provided with a clamping mechanism; a rotary sleeve of the rotary mechanism can rotate around the axis of the core bar on a fixed plane, the rotary sleeve is further provided with outward protruding free end away from the axis of the core bar, and a dial indicator body is fixedly mounted on the free end of the rotary sleeve; and the clamping mechanism comprises an upper tapper sleeve and a lower tapper sleeve which are respectively arranged at an upper part and a lower part, the upper tapper sleeve is relatively fixed to the core bar, the lower tapper sleeve detachably sleeves the lower part of the core bar, and a lower part of the upper tapper sleeve and an upper part of the lower tapper sleeve are respectively provided with chamfers matching the chamfers of the mounting holes to be detected. According to the testing fixture, the fact that the detection process of hole face verticality is performed on a production line is realized, inspection three-dimensional measurement is prevented, and working efficiency is improved; and the measurement process is fast, and a hidden trouble of a batch quality problem caused by that unaccepted products cannot be timely found after being produced is eliminated.
Description
Technical field
The utility model belongs to the testing tool of machined piece, relates in particular to and detects the cubing of mounting hole two ends with the hole end surface verticality of chamfering.
Background technology
In prior art, for the detection of axis and hole end surface verticality in the mounting hole hole of the machined piece with mounting hole, normally rely on three coordinate measuring machine selected characteristic point to detect, as shown in Figure 1.It should be noted that it is using steering knuckle shaft sleeve and mounting hole thereof as example herein, but be not limited in this.
This kind of metering system need to rely on three coordinate measuring machine to detect, and measures cost high; And, at least needing to get 9 unique points, then obtain a result by software computing, the used time is longer, can not carry out in time result feedback; In addition, three coordinate measuring machine should not be deposited in production line scene, need to, by product censorship, owing to can not carrying out in time result feedback, thereby have the hidden danger that causes quality of lot problem; To sum up reason, and detection while not being suitable for production line batch machining.
Summary of the invention
Problem to be solved in the utility model be to provide a kind of can be placed in production scene, easy to use, measure fast, cost is low, be applicable to the cubing that batch production detects with the mounting hole hole end surface verticality of chamfering.
For solving the problems of the technologies described above, the technical scheme first the utility model being adopted based on principle analysis as follows:
1, about verticality and tolerance range: taking the hole inner axes line of mounting hole as " datum axis ", the hole end surface of actual product is " physical plane " shown in Fig. 2, vertical with datum axis is " theoretical planes ", because the skew of " physical plane " produces upper and lower two " theoretical planes " in Fig. 2, we are defined as " tolerance range " region between these two theoretical planes.
2, when the mounting hole hole end surface concave of measured workpiece or the flatness of convexity hour, only there is the situation that favours datum axis in end face, now, Circular Run-out Tolerance at maximum gauge place just can reflect verticality, therefore, in detection hole, the verticality of axis and hole end surface just can be beated and substitute with the axial circular of measuring mounting hole hole end surface.
3, simultaneously, with the example that is processed as of steering knuckle shaft sleeve mounting hole, because endoporus and the chamfering of steering knuckle axle sleeve mounting hole are in clamped one time process, machined by rotating tool, so the endoporus of steering knuckle axle sleeve mounting hole and the axis of chamfering can be ignored its coaxiality deviation, both axis can be considered and overlap.
Therefore, the mentality of designing of this cubing is: determine the axis in hole with the chamfering at mounting hole two ends, and the axle center of cubing and this dead in line, dial gauge is around the rotation of the axle center of cubing, measure by dial gauge the axial circular that mounting hole hole end surface one encloses and beat, thereby realize the detection of hole end surface verticality.
Based on above-mentioned principle, the technical solution of the utility model is:
Be applicable to the mounting hole hole end surface arrangement for measuring verticality with chamfering, comprise cubing body and dial gauge, it is characterized in that, cubing body comprises,
One core bar 7, its top cover has rotating mechanism, and bottom is provided with clamp system;
Described rotating mechanism comprises a rotary sleeve 5, it can be around core bar 7 axle center at a fixing Plane Rotation, rotary sleeve is also provided with the free end of an evagination away from core bar axle center, dial gauge body is installed in the free end of rotary sleeve 5, the measuring staff 6 of dial gauge 1 and core bar axis parallel and relative rotary sleeve 5 energy free-extensions;
Clamp system comprises the upper and lower upper and lower taper sheath of apportion (801,802), and upper conical cover 801 is relative with core bar 7 fixing; Inferior pyramidal overlaps 802 Demountable assemblings in core bar 7 bottoms; The bottom maximum gauge of core bar is less than the diameter of bore of mounting hole to be checked, and upper tapered sleeve bottom and lower tapered sleeve top are respectively provided with the chamfering matching with the chamfering 102 of mounting hole to be checked.
Preferably, the free end of rotary sleeve has longitudinally and the through hole of core bar 7 axis parallels, free end sidepiece has and connects with this through hole and perpendicular to the tapped through hole of this through hole, screw 502 matches with this tapped through hole, a sheathed lining 501 in free end through hole, lining 501 axially has through hole, and the sleeve of dial gauge is plugged in the through hole of lining 501, tighten screw 502, dial gauge body and rotary sleeve are fixed as one.
Preferably; rotary sleeve 5 be by being located thereon, under 4 clampings of two surface bearings be supported on core bar top; guard ring 3 is for the protection of surface bearing 4; and by set nut 2, surface bearing 4, rotary sleeve 5 are linked together with core bar 7, the screwing force of set nut 2 just can rotate freely and be as the criterion in surface bearing 4 with rotary sleeve 5.
This cubing replaces the axis of datum hole (steering knuckle axle sleeve mounting hole) with the centre of gyration of chamfering, the detection of axle sleeve hole central axis and end face squareness is converted into the detection of Circular Run-out Tolerance, realize the testing process of hole face verticality carries out on production line, avoid censorship three-dimensional coordinates measurement, improved work efficiency; Reduce operating personnel's labour intensity; Measuring process is easy, quick, can draw fast measurement result to the verticality of workpiece, has eliminated the hidden danger that can not find in time to cause quality of lot problem after unacceptable product produces.
Brief description of the drawings
Fig. 1 is the schematic diagram that utilizes three-dimensional coordinates measurement in prior art
Fig. 2 is the principle analysis schematic diagram that the utility model adopts scheme
Fig. 3 is the schematic perspective view of cubing
Fig. 4 is the view of cubing while being installed in the mounting hole of parts to be checked
Fig. 5 is the cross-sectional schematic that in Fig. 4, empty frame I encloses part
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
What first need again to emphasize is, the cubing of this case is to detect steering knuckle shaft sleeve (shown in 10 in Fig. 4) and mounting hole thereof as example, but hole end surface (in Fig. 4 shown in the 101) verticality that is not limited in the mounting hole of steering knuckle shaft sleeve detects, every mounting hole two ends be provided with chamfering (in Fig. 4 shown in 102) be all applicable to adopt this cubing to detect.
As shown in Figure 3 and Figure 4, this cubing is mainly made up of cubing body and dial gauge 1, and cubing body comprises a core bar 7, and on the top of core bar 7, cover has rotating mechanism, and the bottom of core bar 7 is provided with clamp system;
Rotating mechanism comprises a rotary sleeve 5, it can be around core bar 7 axle center at a fixing Plane Rotation, rotary sleeve is also provided with the free end of an evagination away from core bar axle center, dial gauge body is installed in the free end of rotary sleeve 5, the measuring staff 6 of dial gauge 1 and core bar axis parallel and relative rotary sleeve 5 energy free-extensions; As shown in Figure 5, the free end of rotary sleeve has longitudinally and the through hole of core bar 7 axis parallels, free end sidepiece has and connects with this through hole and perpendicular to the tapped through hole of this through hole, screw 502 matches with this tapped through hole, a sheathed lining 501 in free end through hole, lining 501 axially has through hole, and the sleeve of dial gauge is plugged in the through hole of lining 501, tighten screw 502, dial gauge body and rotary sleeve are fixed as one.
In the present embodiment; as shown in Figure 3 and Figure 4; rotary sleeve 5 be by being located thereon, under 4 clampings of two surface bearings be supported on core bar top; guard ring 3 is for the protection of surface bearing 4; and by set nut 2, surface bearing 4, rotary sleeve 5 are linked together with core bar 7, the screwing force of set nut 2 just can rotate freely and be as the criterion in surface bearing 4 with rotary sleeve 5.Surface bearing makes rotary sleeve when rotated, remains on a plane, eliminates the axial circular of rotary sleeve in gyration and beats.
Clamp system comprises the upper and lower upper and lower taper sheath of apportion (801,802), and upper conical cover 801 is relative with core bar 7 fixing, and upper conical cover 801 can be that suit is fixed on core bar 7, can be also one-body molded with core bar 7; 802, inferior pyramidal cover be Demountable assembling in core bar 7 bottoms, inferior pyramidal cover 80 can be that core bar is threaded, and can be also as shown in Figure 3, after inferior pyramidal cover is enclosed within on core bar, screws in addition fastening location of nut 9 by below;
The bottom maximum gauge of core bar is less than the diameter of bore of mounting hole to be checked, is convenient to core bar and can inserts in mounting hole endoporus and not and contact with inner hole wall, in order to avoid impact is measured; And the maximum gauge of upper and lower taper sheath should be slightly larger than the maximum gauge of mounting hole two chamfers, and upper tapered sleeve bottom and lower tapered sleeve top are respectively provided with the chamfering matching with the chamfering 102 of mounting hole to be checked.
When use, will screw nut 9 and screw off, take out inferior pyramidal cover 802, and core bar 7 be penetrated to axle sleeve hole from the upper surface of measured hole upper conical cover 801 is coordinated with axle sleeve hole chamfering, inferior pyramidal cover 802 is inserted in to core bar 7 and screws with screwing nut 9 from the axle sleeve hole other end; Upper conical cover 801 coordinates with measured axis trepanning both ends of the surface chamfering with inferior pyramidal cover 802, determines axle sleeve hole central axis, and relies on upper and lower taper sheath to clamp fixing cubing body relative with mounting hole fixing.Adjust the measuring staff 6 of dial gauge to the distance of measured axis cover hole end surface, choosing rotates pivoted housing 5 and drives dial gauge around core bar axle center one week, and the fluctuation range of observing indicator is the verticality of this axle sleeve hole axis and hole end surface.
Above embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present invention.All equalization variation and improvement etc. of doing according to the utility model scope, within all should still belonging to this patent covering scope.
Claims (4)
1. be applicable to the mounting hole hole end surface arrangement for measuring verticality with chamfering, comprise cubing body and dial gauge, it is characterized in that, cubing body comprises,
One core bar (7), its top cover has rotating mechanism, and bottom is provided with clamp system;
Described rotating mechanism comprises a rotary sleeve (5), it can be around core bar (7) axle center at a fixing Plane Rotation, rotary sleeve is also provided with the free end of an evagination away from core bar axle center, dial gauge body is installed in the free end of rotary sleeve (5), the measuring staff (6) of dial gauge (1) and core bar axis parallel and relative rotary sleeve (5) energy free-extension;
Clamp system comprises the upper and lower upper and lower taper sheath of apportion (801,802), upper conical cover (801) is relative fixing with core bar (7), inferior pyramidal cover (802) Demountable assembling is in core bar (7) bottom, and upper tapered sleeve bottom and lower tapered sleeve top are respectively provided with the chamfering matching with the chamfering (102) of mounting hole to be checked.
2. cubing according to claim 1, is characterized in that: described rotary sleeve (5) by being located thereon, under two surface bearings (4) clamping be supported on core bar top.
3. cubing according to claim 1, it is characterized in that: the free end of described rotary sleeve has longitudinally and the through hole of core bar (7) axis parallel, free end sidepiece has and connects with this through hole and perpendicular to the tapped through hole of this through hole, screw (502) matches with this tapped through hole, a sheathed lining (501) in free end through hole, lining (501) axially has through hole, and the sleeve of dial gauge is plugged in the through hole of lining (501).
4. cubing according to claim 1, is characterized in that: the bottom maximum gauge of core bar is less than the diameter of bore of mounting hole to be checked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089975.1U CN203811109U (en) | 2014-02-28 | 2014-02-28 | Hole end face verticality testing fixture applied to mounting holes with chamfers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089975.1U CN203811109U (en) | 2014-02-28 | 2014-02-28 | Hole end face verticality testing fixture applied to mounting holes with chamfers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203811109U true CN203811109U (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420089975.1U Expired - Fee Related CN203811109U (en) | 2014-02-28 | 2014-02-28 | Hole end face verticality testing fixture applied to mounting holes with chamfers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203811109U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413850A (en) * | 2018-05-30 | 2018-08-17 | 洛阳隆华传热节能股份有限公司 | A kind of application method of threaded plug type air cooler plug hole perpendicularity detection tool device |
| CN113310454A (en) * | 2021-06-18 | 2021-08-27 | 江苏理工学院 | Device for synchronously detecting coaxiality and verticality of inner ring and outer ring of bearing |
-
2014
- 2014-02-28 CN CN201420089975.1U patent/CN203811109U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413850A (en) * | 2018-05-30 | 2018-08-17 | 洛阳隆华传热节能股份有限公司 | A kind of application method of threaded plug type air cooler plug hole perpendicularity detection tool device |
| CN113310454A (en) * | 2021-06-18 | 2021-08-27 | 江苏理工学院 | Device for synchronously detecting coaxiality and verticality of inner ring and outer ring of bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 |
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| CF01 | Termination of patent right due to non-payment of annual fee |