CN214702089U - Fixed cone checking fixture suitable for spline hole parts - Google Patents
Fixed cone checking fixture suitable for spline hole parts Download PDFInfo
- Publication number
- CN214702089U CN214702089U CN202120604004.6U CN202120604004U CN214702089U CN 214702089 U CN214702089 U CN 214702089U CN 202120604004 U CN202120604004 U CN 202120604004U CN 214702089 U CN214702089 U CN 214702089U
- Authority
- CN
- China
- Prior art keywords
- spline hole
- fixed cone
- piece
- steel ball
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses an utensil is examined to decide awl suitable for spline hole class part belongs to and examines the utensil field. The utility model discloses a fixed cone checking fixture suitable for spline hole class part, including supporting the inspection seat, support the inspection seat and be equipped with supporting end face, location axle and extension shaft in proper order; the positioning shaft is provided with a calibration piece, the end face of the calibration piece is positioned on the supporting end face, the extension shaft is provided with a steel ball bushing, a positioning piece is arranged outside the steel ball bushing, and the end face of the positioning piece is in line contact with the conical surface of the calibration piece; the steel ball bush type shaft holes are matched, so that the influence of abrasion factors on the matching clearance in the repeated clamping process is reduced, and the influence on the detection report result is reduced; on the other hand, the purpose of mutual detection of the detection tool for detecting the tooth part reference and the hot post-processing conical surface reference can be achieved by adopting conical surface line contact, and the problem of different tapers of the small diameter belt of the heat-treated spline is solved by adding no inner hole core expansion.
Description
Technical Field
The utility model belongs to examine the utensil field, especially a surely awl is examined utensil suitable for spline hole class part.
Background
At present, for spline hole parts, the hot front detection standard is mostly small-diameter expansion center, and the key side and the large diameter are used as the detection standard and account for a few. The tooth part detection tool after heating is mostly a bonding expansion sleeve type detection mandrel, and the spline expansion sleeve type mandrel is also rarely used in detection tool schemes such as a mode with a small taper optical axis and a mode with a large diameter. Whether the inner hole is ground or not in the hot post-processing is different from the processing reference scheme selected before the hot post-processing, the change of the taper of the inner hole in the heat treatment is different, and the processing technology adopted by each factory is also different.
The hot post-grinding processing of inner hole and conical surface is also commonly performed in the large plant of the manual transmission, and the scheme of detecting the tooth part after heating is also mostly in a spindle type. In some factories in China, hot rear inner holes are not ground, the hot rear tooth part detection is mostly in a hot front mandrel type, and due to the fact that the inner holes of parts after heat treatment have the problem of different tapers, different parts need to be repeatedly clamped for many times, the alignment direction can be measured, and the time of the accurate measurement clamping process is long.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome thermal treatment back spline hole class part hole and have the tapering problem of varying, alignment direction is measurable quantity, and the long shortcoming of clamping process time is surveyed to the essence provides a decide awl and examines utensil suitable for spline hole class part.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a fixed cone checking fixture suitable for spline hole parts comprises a supporting and correcting seat, wherein a supporting end face, a positioning shaft and an extension shaft are sequentially arranged on the supporting and correcting seat;
the positioning shaft is provided with a calibration piece, the end face of the calibration piece is positioned on the supporting end face, the extension shaft is provided with a steel ball bushing, a positioning piece is arranged outside the steel ball bushing, and the end face of the positioning piece is in line contact with the conical surface of the calibration piece.
Furthermore, the tail end of the extension shaft is provided with a tightening screw for tightening and loosening the positioning piece.
Furthermore, a steel wire check ring is arranged on the steel ball bushing.
Furthermore, the calibration piece and the supporting calibration seat are in clearance fit.
Further, the minimum clearance between the calibration piece and the supporting calibration seat is 0.27 mm.
Furthermore, the steel ball bushing and the positioning piece are in clearance fit.
Furthermore, the extension shaft and the positioning piece are in clearance fit.
Further, the maximum clearance between the extension shaft and the positioning piece is 0.005 mm.
Further, the conical surface diameter jump of the calibration piece is less than 0.003 mm.
Compared with the prior art, the utility model discloses following beneficial effect has:
the fixed cone checking fixture suitable for the spline hole part adopts the steel ball bush type shaft hole matching, and reduces the influence of the abrasion factors on the matching clearance in the repeated clamping process, thereby reducing the influence on the detection report result; on the other hand, the purpose of mutual detection of the detection tool for detecting the tooth part reference and the hot post-processing conical surface reference can be achieved by adopting conical surface line contact, the spline hole and the shaft hole of the detection tool are matched into a large gap, and the problem that the small diameter belt of the spline subjected to heat treatment is different in taper is solved.
Furthermore, a tightening screw is matched with the threaded connection, so that the checking fixture is guaranteed to be clamped in place, the checking process is not loosened, and the accuracy and the stability are guaranteed.
Drawings
Fig. 1 is a sectional view of the present invention.
Wherein: 1-supporting the correction seat; 2-a calibration piece; 3-a steel wire retainer ring; 4-a positioning element; 5-steel ball bush; 6-tightening the screw.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present invention will be described in further detail with reference to the accompanying drawings:
the utility model discloses an utensil is examined to decide awl suitable for spline hole class part, including supporting correcting seat 1, support correcting seat 1 and go up to be equipped with in proper order and support terminal surface, location axle and extension axle, the epaxial calibration piece 2 that is equipped with in location, the terminal surface of calibration piece 2 is located the support terminal surface, the epaxial steel ball bush 5 that is equipped with of extension, and steel ball bush 5 is equipped with setting element 4 outward, and the terminal surface of setting element 4 is the line contact with the conical surface of calibration piece 2, and the end of extension axle is equipped with the screw up screw 6 that is used for elasticity setting element 4. And the steel ball bush 5 is provided with a steel wire retainer ring 3 for preventing the steel ball bush 5 from falling out in the repeated clamping process.
The utility model discloses a clamping process before utensil detection part is examined to fixed cone does:
(1) firstly, the conformity of the end jump diameter jump of the checking fixture is checked
Screwing down the screw 6, and detecting the conical surface radial run-out of the calibration piece 2 by using a dial indicator, wherein the diameter is qualified if the diameter is less than 0.003 mm; after the detection is qualified, completely loosening the screw 6, drawing the positioning piece 4 out of the support correction seat 1, and then detaching the calibration piece 2;
(2) preparing a part to be tested
The supporting correction seat 1 is vertically placed vertically, the conical surface of the piece to be measured is upward, the small diameter of the inner bore of the spline of the piece to be measured is placed on a phi 55 optical axis with a guiding function of the supporting correction seat 1, and the spline and the optical axis are in clearance fit (the minimum clearance is 0.27mm), so that the coarse positioning of the part is realized;
(3) sleeving a steel ball bush 5 on a long shaft supporting the correcting seat 1, sleeving a positioning piece 4 on the steel ball bush 5, matching shaft holes among the steel ball bush 5, clamping in place, and contacting the end face of the positioning piece 4 with a part to be detected;
rotating the positioning piece 4, realizing the alignment of making level of positioning piece 4 and waiting to detect the part line contact circle, it is specific:
the contact circle is concentric with the supporting and positioning seat 1 and two apex holes (detection reference holes) of the tightening screw 6, and are parallel to the end face of the supporting and positioning seat 1 for supporting parts, so that the purpose of aligning and leveling the conical surface of the detection tool is achieved;
the steel ball bushing 5 plays a role in transition fit between the support calibration seat 1 and the positioning piece 4, so that the influence of abrasion factors on fit clearance in the repeated clamping process is reduced, the 3 parts are in a micro clearance fit state, and the maximum clearance amount is 0.005 mm;
(4) finally, the screw 6 is screwed down, the machined conical surface of the hot car of the part to be detected is detected by the upper deflection instrument by using a dial indicator, the radial run-out is required to be less than 0.005mm, if the radial run-out is qualified, the tooth part is detected, and the check tool before detection is ensured not to collide back and forth (to prevent loosening);
and if the radial jump is unqualified, loosening the tightening screw 6, then freely rotating the positioning piece 4, then re-tightening the tightening screw 6, and detecting the jump to the required size.
The fixed cone checking fixture suitable for the spline hole part combines two schemes of a mandrel type checking fixture and a conical surface depth checking fixture, adopts the steel ball bush type shaft hole matching, reduces the influence of the abrasion factor on the matching clearance in the repeated clamping process, thereby reducing the influence on the detection report result; on the other hand, the purpose of mutual detection of the tooth part reference and the hot post-processing conical surface reference of the detection tool can be achieved by adopting conical surface line contact, and the problem of inconsistent conicity of the small diameter belt of the spline subjected to heat treatment is solved by matching the spline hole and the shaft hole of the detection tool into a large gap; meanwhile, the tightening screw is matched with the threaded connection, so that the checking fixture is guaranteed to be clamped in place, the checking process is not loosened, and the accuracy and the stability are guaranteed.
From the machining process scheme, the pitch circle clamping inner hole grinding and expansion sleeve expansion center hot rear turning is not the inner hole grinding and the pitch circle clamping hot rear turning, and the latter processing scheme saves a hot rear inner hole grinding process, so that the cost of a single piece for processing the auxiliary box driving gear piece can be reduced by 1.95 yuan.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (9)
1. A fixed cone checking fixture suitable for spline hole parts is characterized by comprising a supporting and correcting seat (1), wherein a supporting end face, a positioning shaft and an extension shaft are sequentially arranged on the supporting and correcting seat (1);
the positioning shaft is provided with a calibration piece (2), the end face of the calibration piece (2) is positioned on the supporting end face, the extension shaft is provided with a steel ball bushing (5), a positioning piece (4) is arranged outside the steel ball bushing (5), and the end face of the positioning piece (4) is in line contact with the conical surface of the calibration piece (2).
2. The fixed cone detection tool suitable for the spline hole part as claimed in claim 1, wherein a tightening screw (6) for tightening and loosening the positioning member (4) is arranged at the tail end of the extension shaft.
3. The fixed cone detection tool suitable for the spline hole part as claimed in claim 1, wherein a steel wire retainer ring (3) is arranged on the steel ball bushing (5).
4. The fixed cone detection tool suitable for the spline hole part as claimed in claim 1, wherein the calibration piece (2) is in clearance fit with the support correction seat (1).
5. The fixed cone detection tool suitable for the spline hole part as claimed in claim 4, wherein the minimum clearance between the calibration piece (2) and the supporting correction seat (1) is 0.27 mm.
6. The fixed cone detection tool suitable for the spline hole part as claimed in claim 1, wherein the steel ball bushing (5) and the positioning piece (4) are in clearance fit.
7. The fixed cone detection tool suitable for the spline hole part as claimed in claim 1, wherein the extension shaft and the positioning member (4) are in clearance fit.
8. The fixed cone detection tool suitable for the spline hole part as claimed in claim 7, wherein the maximum clearance between the extension shaft and the positioning member (4) is 0.005 mm.
9. The fixed cone detection tool suitable for the spline hole part as claimed in claim 1, wherein the conical surface diameter jump of the calibration piece (2) is less than 0.003 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120604004.6U CN214702089U (en) | 2021-03-24 | 2021-03-24 | Fixed cone checking fixture suitable for spline hole parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120604004.6U CN214702089U (en) | 2021-03-24 | 2021-03-24 | Fixed cone checking fixture suitable for spline hole parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214702089U true CN214702089U (en) | 2021-11-12 |
Family
ID=78527075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120604004.6U Active CN214702089U (en) | 2021-03-24 | 2021-03-24 | Fixed cone checking fixture suitable for spline hole parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214702089U (en) |
-
2021
- 2021-03-24 CN CN202120604004.6U patent/CN214702089U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100507436C (en) | Meter for conic hole | |
| CN207050689U (en) | Taper roll bearing assembles the measurement apparatus of height | |
| CN100554867C (en) | Method for detecting roller completed product | |
| CN109623648B (en) | Processing method of shaft parts | |
| CN100523710C (en) | Measurer for measuring distance between off-centering taper hole and periphery of revolution body | |
| CN214702089U (en) | Fixed cone checking fixture suitable for spline hole parts | |
| CN102601733A (en) | Online conical hole grinding, machining and measuring method for workpieces with large conical holes | |
| CN104121843A (en) | Tool suite for detecting coaxial degree and symmetric degree of internal conical surface and external profile surface and detection method thereof | |
| CN202433011U (en) | Positioning fixture of roundness measuring instrument for detecting centerless taper parts | |
| CN115008252A (en) | Double-shaft machine tool centering tool and centering method | |
| CN2860730Y (en) | Spindle taper detection device | |
| CN212724471U (en) | Shaft measurement skill training device for teaching | |
| CN213902144U (en) | Thread axis gauge | |
| CN111102910B (en) | Thread coaxiality measuring tool and measuring method | |
| CN212620635U (en) | Three-coordinate measuring and quick positioning device for steering knuckle | |
| CN113218282A (en) | Device and method for measuring small semicircular diameter of shaft part | |
| CN108709673B (en) | Honing force testing device and honing force testing method | |
| CN112050703A (en) | Automatic detection equipment for jump degree of chuck | |
| CN207741680U (en) | A kind of spherical roller detection device | |
| CN211317110U (en) | Device for detecting jumping of hexagonal fuel assembly | |
| CN217585727U (en) | Circumference runout detection device taking outer circles at two ends of shaft as detection reference | |
| CN104534965A (en) | Internal thread perpendicularity detecting device and using method thereof | |
| CN210346533U (en) | Self-aligning ball bearing rotation precision detection device | |
| CN216940235U (en) | A hole positioning tool for high accuracy detects | |
| CN219161508U (en) | Spring torque detection tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |