CN202571725U - Device for mounting guide column and guide sleeve by liquid nitrogen freezing method - Google Patents
Device for mounting guide column and guide sleeve by liquid nitrogen freezing method Download PDFInfo
- Publication number
- CN202571725U CN202571725U CN 201220189797 CN201220189797U CN202571725U CN 202571725 U CN202571725 U CN 202571725U CN 201220189797 CN201220189797 CN 201220189797 CN 201220189797 U CN201220189797 U CN 201220189797U CN 202571725 U CN202571725 U CN 202571725U
- Authority
- CN
- China
- Prior art keywords
- liquid nitrogen
- guide
- guide sleeve
- pin bushing
- guide column
- 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.)
- Expired - Fee Related
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a device for mounting a guide column and a guide sleeve by a liquid nitrogen freezing method. The device comprises a cylinder and a cylinder cover matched with the cylinder; a liquid nitrogen layer and a mounting frame positioned on the liquid nitrogen layer are arranged in the cylinder. According to the device, a principle that metal shrinks and deforms at extremely low temperature is utilized; the guide column and the guide sleeve are preprocessed before assembled, so that the diameter of the guide column is decreased, the size of a guide sleeve matching hole is increased, the guide column and the guide sleeve are assembled smoothly; and then the guide column and the guide sleeve recover to the respective sizes after being at normal temperature for a certain time, so that the guide column is in clearance fit with the guide sleeve. By the device, the guide column and the guide sleeve can be conveniently mounted and are difficult to damage.
Description
Technical field
The utility model relates to a kind of liquid nitrogen frozen guide pillar guide pin bushing erecting device, belongs to mechanical part mounting technique field.
Background technology
The guide pillar guide pin bushing as required, its installation all is an interference fit, conventional mounting all is to adopt the mode of guide pillar being knocked in guide pin bushing); This kind mounting means is effort, and the easy run-off the straight of guide pillar in installation process, and influence installation accuracy between the two simultaneously also is prone to cause both damages.
The utility model content
The utility model is to above-mentioned defective, and purpose is handled guide pillar, guide pin bushing earlier before being to provide a kind of installation, so that the liquid nitrogen frozen guide pillar guide pin bushing erecting device that both assemble smoothly.
The technical scheme of the utility model employing is for this reason: the utility model comprises cylinder body and the cylinder cap that is mated, and establishes liquid nitrogen layer in the cylinder body and is placed with the placing frame that is in liquid nitrogen layer.
Said placing frame connects the handle that is in the cylinder body outside through elevating lever.
Said cylinder cap comprise one with the big cylinder cap of cylinder body upper end closed be in the little cylinder cap that vat covers, the space that said little cylinder cap forms and corresponding guide pillar, guide pin bushing are corresponding.
Said placing frame is provided with the keeper of positioning guide column, guide pin bushing.
The utility model has the advantages that: the utility model utilizes metal contraction distortion principle under utmost point sub-cooled, before the assembling of guide pillar guide pin bushing, earlier both is carried out preliminary treatment; Make the guide pillar size decreases; It is big that guide pin bushing mating holes size becomes, and both are assembled smoothly, then warp normal temperature after a while; Guide pillar, guide pin bushing recover its size separately, make to realize interference fit between the two; Therefore adopt and can make guide pillar after this kind processing, that guide pin bushing is installed is convenient, and not easy damaged guide pillar, guide pin bushing.
Description of drawings
Fig. 1 is the structural representation of the utility model.
1 is that cylinder body, 2 is that big cylinder cap, 3 is that little cylinder cap, 4 is that handle, 5 is that connecting rod, 6 is that placing frame, 7 is that workpiece, 8 is the liquid nitrogen layer among the figure.
The specific embodiment
The utility model is put into cylinder body 1 with liquid 8 earlier and is formed liquid nitrogen layer 8, then placing frame 6 is connected with connecting rod 5, passes big cylinder cap 2 backs and is connected with handle 4.
When the utility model need cool off workpiece 7 such as guide pillar, guide pin bushing, earlier little cylinder cap 3 is turned on, carried handle 4; Workpiece 7 is placed on the placing frame 6, puts down handle 4, cover little cylinder cap 4; Time to be cooled to after carried handle 4 after opening little cylinder cap 3, take out workpiece 7 with clamp.
Claims (4)
1. liquid nitrogen frozen guide pillar guide pin bushing erecting device is characterized in that, comprises cylinder body and the cylinder cap that is mated, and establishes liquid nitrogen layer in the cylinder body and is placed with the placing frame that is in liquid nitrogen layer.
2. liquid nitrogen frozen guide pillar guide pin bushing erecting device according to claim 1 is characterized in that, said placing frame connects the handle that is in the cylinder body outside through elevating lever.
3. liquid nitrogen frozen guide pillar guide pin bushing erecting device according to claim 1; It is characterized in that; Said cylinder cap comprise one with the big cylinder cap of cylinder body upper end closed be in the little cylinder cap that vat covers, the space that said little cylinder cap forms and corresponding guide pillar, guide pin bushing are corresponding.
4. liquid nitrogen frozen guide pillar guide pin bushing erecting device according to claim 1 is characterized in that said placing frame is provided with the keeper of positioning guide column, guide pin bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220189797 CN202571725U (en) | 2012-04-29 | 2012-04-29 | Device for mounting guide column and guide sleeve by liquid nitrogen freezing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220189797 CN202571725U (en) | 2012-04-29 | 2012-04-29 | Device for mounting guide column and guide sleeve by liquid nitrogen freezing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202571725U true CN202571725U (en) | 2012-12-05 |
Family
ID=47241177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220189797 Expired - Fee Related CN202571725U (en) | 2012-04-29 | 2012-04-29 | Device for mounting guide column and guide sleeve by liquid nitrogen freezing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202571725U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097024A (en) * | 2014-07-11 | 2014-10-15 | 北车兰州机车有限公司 | Transmission pin fitting method and device and drain bucket |
| CN104289855A (en) * | 2014-08-15 | 2015-01-21 | 安徽涌诚机械有限公司 | Copper bush installation process |
| CN111438281A (en) * | 2020-04-07 | 2020-07-24 | 深圳市华源达科技有限公司 | Assembly line type assembling method of stamping die |
-
2012
- 2012-04-29 CN CN 201220189797 patent/CN202571725U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097024A (en) * | 2014-07-11 | 2014-10-15 | 北车兰州机车有限公司 | Transmission pin fitting method and device and drain bucket |
| CN104097024B (en) * | 2014-07-11 | 2017-03-15 | 中车兰州机车有限公司 | Power transmission pin assemble method, device and leakage basket |
| CN104289855A (en) * | 2014-08-15 | 2015-01-21 | 安徽涌诚机械有限公司 | Copper bush installation process |
| CN111438281A (en) * | 2020-04-07 | 2020-07-24 | 深圳市华源达科技有限公司 | Assembly line type assembling method of stamping die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20130429 |