CN101886908B - Screw rod concentricity detection device - Google Patents
Screw rod concentricity detection device Download PDFInfo
- Publication number
- CN101886908B CN101886908B CN2010101680979A CN201010168097A CN101886908B CN 101886908 B CN101886908 B CN 101886908B CN 2010101680979 A CN2010101680979 A CN 2010101680979A CN 201010168097 A CN201010168097 A CN 201010168097A CN 101886908 B CN101886908 B CN 101886908B
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- rod
- hexagonal hole
- inner hexagonal
- plug
- screw rod
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- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention discloses a screw rod concentricity detection device, which comprises a core rod matched with an inner hexagonal hole in a shaft head of a screw rod and a column rod inserted into the core rod, wherein the core rod is concentric with the column rod; the head of the core rod is inserted into the inner hexagonal hole; the opposite side distance of the cross section of the tail part of the core rod exceeds the opposite side distance of the cross section of the inner hexagonal hole; and the lateral surface of the core rod has a taper relative to the plane of the axis of the core rod. The invention also discloses a screw rod concentricity detection method, which comprises the following steps of: 1) inserting the head of the core rod into the inner hexagonal hole in the shaft head of the screw rod to perform positioning, 2) arranging a bearing on a shaft shoulder of the screw rod, and positioning the screw rod on a V-shaped block on a horizontal plate through the bearing, and 3) testing the jump of the tail part of the column rod relative to the bearing by using a dial gauge. Therefore, the inner hexagonal hole in the shaft head of the screw rod is transformed into the core rod and the column rod, the concentricity of the inner hexagonal hole relative to the shaft shoulder is determined by detecting the jump of the tail part of the column rod relative to the bearing, and the device has the advantages of simple structure, convenient operation, precision and reliability.
Description
Technical field
The present invention relates to a kind of screw rod concentricity pick-up unit and detection method.
Background technology
Shown in Figure 4 and 5; Some screw mandrel class workpiece shaft shoulder 32 to the inner hexagonal hole 310 of the spindle nose 31 of screw mandrel 3 and screw mandrel 3 in technical requirement guarantees certain concentricity; After particularly on the shaft shoulder 32 bearing being installed; The circle of the inner hexagonal hole 310 relative shaft shoulders 32 is beated and will be guaranteed within the technical requirement allowed band, confirm because the center line of inner hexagonal hole 310 is difficult, so the concentricity of the inner hexagonal hole 310 relative shaft shoulders 32 is difficult for measuring.
Summary of the invention
Problem to be solved by this invention just provides a kind of screw rod concentricity pick-up unit simple in structure and easy to operate screw rod concentricity detection method; Inner hexagonal hole in the spindle nose of screw mandrel is changed into axle; Through detecting the concentricity of beating to confirm inner hexagonal hole of axle, accurately reliable.
In order to solve the problems of the technologies described above; The present invention adopts following technical scheme: a kind of screw rod concentricity pick-up unit; It is characterized in that: comprise plug that the inner hexagonal hole in the spindle nose with screw mandrel cooperates and be plugged on the cylindrical rod in the plug, said plug is concentric with cylindrical rod, the head insertion inner hexagonal hole of said plug; The opposite side distance of the xsect of said plug afterbody surpasses the opposite side distance of the xsect of inner hexagonal hole, and the plane at relative plug axis place, the side of plug has a tapering.
Further, said tapering is 5 °.
Further, the opposite side distance of the xsect of said plug afterbody is bigger 0.1 millimeter than the opposite side distance of the xsect of inner hexagonal hole.
Further, said plug and cylindrical rod interference fit.
The present invention also provides a kind of screw rod concentricity detection method in addition, it is characterized in that: may further comprise the steps,
1) inner hexagonal hole that the head of plug is inserted in the spindle nose of screw mandrel is had good positioning;
2) on the shaft shoulder of screw mandrel, bearing is installed, screw mandrel is positioned on the vee-block on the leveling board through bearing;
3) use beating of the dial gauge test relative bearing of cylindrical rod afterbody.
Further, said plug and inner hexagonal hole concentric fit.
After adopting technique scheme; The present invention has following advantage: the inner hexagonal hole in the spindle nose of screw mandrel is changed into plug and cylindrical rod; Through detecting the concentricity of beating to confirm the relative shaft shoulder of inner hexagonal hole of the relative bearing of cylindrical rod, simple in structure, easy to operate, accurately reliable.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further:
Fig. 1 is the structural representation of an embodiment of the present invention when using;
Fig. 2 is a structural representation embodiment illustrated in fig. 1;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the structural representation of screw mandrel;
Fig. 5 is the left view of Fig. 4.
Embodiment
The structural representation of an embodiment of the present invention shown in Fig. 1 to 3; A kind of screw rod concentricity pick-up unit; Comprise plug 1 that the inner hexagonal hole 310 in the spindle nose 31 with screw mandrel 3 cooperates and be plugged on the cylindrical rod 2 in the plug 1; Plug 1 and cylindrical rod 2 concentric and plugs 1 and cylindrical rod 2 interference fit, the head of plug 1 inserts inner hexagonal hole 310, and the opposite side distance of the xsect of plug 1 afterbody surpasses the opposite side distance of the xsect of inner hexagonal hole 310; And the plane at relative plug 1 axis place, the side of plug 1 has a tapering, and preferred tapering is 5 °.
The present invention also provides a kind of screw rod concentricity detection method in addition, may further comprise the steps,
1) inner hexagonal hole that the head of plug is inserted in the spindle nose of screw mandrel is had good positioning;
2) on the shaft shoulder of screw mandrel, bearing is installed, screw mandrel is positioned on the vee-block on the leveling board through bearing;
3) use beating of the dial gauge test relative bearing of cylindrical rod afterbody.
Through dial gauge detect the relative bearing of cylindrical rod afterbody beat confirm whether the concentricity of the relative shaft shoulder of inner hexagonal hole satisfies technical requirement.
In the foregoing description; The opposite side distance of the xsect of plug afterbody is bigger 0.1 millimeter than the opposite side distance of the xsect of inner hexagonal hole; The present invention changes into plug and cylindrical rod with the inner hexagonal hole in the spindle nose of screw mandrel; Through detecting the concentricity of beating to confirm the relative shaft shoulder of inner hexagonal hole of the relative bearing of cylindrical rod, simple in structure, easy to operate, accurately reliable.
Except that above-mentioned preferred embodiment, the present invention also has other embodiment, and those skilled in the art can make various changes and distortion according to the present invention, only otherwise break away from spirit of the present invention, all should belong to the defined scope of accompanying claims of the present invention.
Claims (1)
1. screw rod concentricity pick-up unit; It is characterized in that: comprise the plug (1) that the inner hexagonal hole (310) in the spindle nose (31) with screw mandrel (3) cooperates and be plugged on the cylindrical rod (2) in the plug; Said plug is concentric with cylindrical rod, and the head of said plug inserts inner hexagonal hole, and the opposite side distance of the xsect of said plug afterbody surpasses the opposite side distance of the xsect of inner hexagonal hole; And the plane at relative plug axis place, the side of plug has a tapering; Said tapering is 5 °, and the opposite side distance of the xsect of said plug afterbody is bigger 0.1 millimeter than the opposite side distance of the xsect of inner hexagonal hole, said plug and cylindrical rod interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101680979A CN101886908B (en) | 2010-05-07 | 2010-05-07 | Screw rod concentricity detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101680979A CN101886908B (en) | 2010-05-07 | 2010-05-07 | Screw rod concentricity detection device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110411911 Division CN102519346B (en) | 2010-05-07 | 2010-05-07 | Method for detecting concentricity of screw rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101886908A CN101886908A (en) | 2010-11-17 |
| CN101886908B true CN101886908B (en) | 2012-05-30 |
Family
ID=43072920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101680979A Expired - Fee Related CN101886908B (en) | 2010-05-07 | 2010-05-07 | Screw rod concentricity detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101886908B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113658127A (en) * | 2021-08-12 | 2021-11-16 | 东北大学 | Hole and riveting quality detection method based on machine learning |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2709929Y (en) * | 2004-04-22 | 2005-07-13 | 刘红艳 | Implement for measuring round pulsation value of end to hole |
| JP3742991B2 (en) * | 2003-09-25 | 2006-02-08 | 京都精密工業株式会社 | Concentricity measuring gauge |
| CN201081667Y (en) * | 2007-09-17 | 2008-07-02 | 许晓华 | Motor radial run-out tester |
| CN201152733Y (en) * | 2008-01-22 | 2008-11-19 | 上海标准件模具厂 | Measurement apparatus for hexagon comb dies concentricity |
| CN201215477Y (en) * | 2008-06-19 | 2009-04-01 | 腾普(常州)精机有限公司 | Concentricity measuring instrument for dispel tablet of motor |
| CN101498573A (en) * | 2009-02-20 | 2009-08-05 | 中冶实久建设有限公司南京分公司 | Aligning method for turbine shaft and generator shaft |
| CN201688821U (en) * | 2010-05-07 | 2010-12-29 | 许晓华 | Screw concentricity detecting device |
-
2010
- 2010-05-07 CN CN2010101680979A patent/CN101886908B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3742991B2 (en) * | 2003-09-25 | 2006-02-08 | 京都精密工業株式会社 | Concentricity measuring gauge |
| CN2709929Y (en) * | 2004-04-22 | 2005-07-13 | 刘红艳 | Implement for measuring round pulsation value of end to hole |
| CN201081667Y (en) * | 2007-09-17 | 2008-07-02 | 许晓华 | Motor radial run-out tester |
| CN201152733Y (en) * | 2008-01-22 | 2008-11-19 | 上海标准件模具厂 | Measurement apparatus for hexagon comb dies concentricity |
| CN201215477Y (en) * | 2008-06-19 | 2009-04-01 | 腾普(常州)精机有限公司 | Concentricity measuring instrument for dispel tablet of motor |
| CN101498573A (en) * | 2009-02-20 | 2009-08-05 | 中冶实久建设有限公司南京分公司 | Aligning method for turbine shaft and generator shaft |
| CN201688821U (en) * | 2010-05-07 | 2010-12-29 | 许晓华 | Screw concentricity detecting device |
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| Publication number | Publication date |
|---|---|
| CN101886908A (en) | 2010-11-17 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20130507 |