CN101968336A - Checking fixture for rubdown range of cylindrical helical spring - Google Patents
Checking fixture for rubdown range of cylindrical helical spring Download PDFInfo
- Publication number
- CN101968336A CN101968336A CN2010102644471A CN201010264447A CN101968336A CN 101968336 A CN101968336 A CN 101968336A CN 2010102644471 A CN2010102644471 A CN 2010102644471A CN 201010264447 A CN201010264447 A CN 201010264447A CN 101968336 A CN101968336 A CN 101968336A
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- China
- Prior art keywords
- checking fixture
- range
- rubdown
- spring
- helical spring
- 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.)
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Abstract
The invention discloses a checking fixture for the rubdown range of a cylindrical helical spring. The checking fixture comprises a 270-degree incomplete ring, and the two end surfaces of the 270-degree incomplete ring are superposed with the diameter of the incomplete ring. The checking fixture for the rubdown range of the cylindrical helical spring has the characteristics that: the checking fixture is designed and used only according to a corresponding spring tolerance limit value, and is easy to operate, practical and applicable to the checking in batch production.
Description
Technical field
The invention belongs to the spring cubing, particularly a kind of cylindrically coiled spring polishes the scope cubing.
Technical background
The high speed motor car spring is very important to safe train operation, and the parameter of spring directly influences the performance and the stationarity of car load.Present domestic all be to adopt vernier caliper to measure with external diameter in the cylindrically coiled spring, the interior external diameter that this metering system can not the complete reaction spring has just been measured the part; The domestic detection that does not require this corner of cylindrical deviation only requires the detection of this corner at present with volute spring in the Harmony motor train unit; The range detection method that polishes of bearing coil all is that the overwhelming majority is artificial factor here by range estimation.More effective, the more direct quality that guarantees spring of detection by above-mentioned cubing.
Summary of the invention.
The purpose of this invention is to provide a kind of cylindrically coiled spring and polish the scope cubing.Be applicable to the helical spring scope that polishes that detects.
Content of the present invention is:
A kind of cylindrically coiled spring polishes the scope cubing, it is characterized in that: the missing link of one 270 degree is the faces that overlap with the missing link diameter in the both ends of the surface of missing links of 270 degree.
Characteristics of the present invention:
This cylindrically coiled spring spring polishes the scope cubing, only needs to design use according to respective springs tolerance limit value, and easy and simple to handle, practicality is suitable for producing by batch in a large number check.
Description of drawings
Fig. 1 is that cylindrically coiled spring polishes the scope cubing
Embodiment
A kind of cylindrically coiled spring as shown in Figure 1 polishes the scope cubing, and the missing link 1 of one 270 degree is that 2, one of locating surfaces are measurement faces 3 in one of the both ends of the surface of missing links of 270 degree, and these two faces are the faces that overlap with the missing link diameter.
Cylindrically coiled spring polishes the scope that polishes that the scope cubing is a detection springs end circle.Cubing is lain in a horizontal plane on the spring end face, " locating surface " alignd with the spring tip, the range estimation spring polishes scope greater than " measurement face ", and it is qualified that then tested spring polishes the scope size.
Claims (1)
1. a cylindrically coiled spring polishes the scope cubing, it is characterized in that: the missing link of one 270 degree is the faces that overlap with the missing link diameter in the both ends of the surface of missing links of 270 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102644471A CN101968336A (en) | 2010-08-27 | 2010-08-27 | Checking fixture for rubdown range of cylindrical helical spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102644471A CN101968336A (en) | 2010-08-27 | 2010-08-27 | Checking fixture for rubdown range of cylindrical helical spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101968336A true CN101968336A (en) | 2011-02-09 |
Family
ID=43547526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102644471A Pending CN101968336A (en) | 2010-08-27 | 2010-08-27 | Checking fixture for rubdown range of cylindrical helical spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101968336A (en) |
-
2010
- 2010-08-27 CN CN2010102644471A patent/CN101968336A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110209 |