CN2302076Y - Electric small-bore boring and milling head - Google Patents
Electric small-bore boring and milling head Download PDFInfo
- Publication number
- CN2302076Y CN2302076Y CN 97237810 CN97237810U CN2302076Y CN 2302076 Y CN2302076 Y CN 2302076Y CN 97237810 CN97237810 CN 97237810 CN 97237810 U CN97237810 U CN 97237810U CN 2302076 Y CN2302076 Y CN 2302076Y
- Authority
- CN
- China
- Prior art keywords
- cutter hub
- minor
- utility
- model
- spiral head
- 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 - Lifetime
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- Drilling And Boring (AREA)
Abstract
The utility model relates to an electric minor-diameter boring and milling head. The existing minor-diameter tube has the defects of large processing labor strength, complex operation, long construction period, and low work efficiency. The utility model is characterized in that the tail of the centering needle tail is connected with a small shaft through a screw thread; the two ends of the small shaft are provided with bearings; liner rings which are arranged between the bearings are integrally arranged in a cutter body; the inner part on the rear end of the cutter body is provided with a spiral head which can hold one bearing; the spiral head is connected with the screw thread of the electric drill; the front end of the cutter body is provided with a cutter blade which is fastened with a wedge block, and the external end of the wedge block is provided with one screw. The utility model is suitable for the fillet weld of the plane, the beveling, or the tube sheet of the minor-diameter tube of the minor-diameter tube heat exchanger, and the milling processing of the R welding groove in the chemical industry.
Description
The utility model relates to a kind of being used for chemical industry with the angle welding of plane, groove or the tube sheet of the path tubulation of small-bore tubular heat exchanger, the electronic boring and milling head outer that the R weld groove carries out Milling Process.
The repairing of the small diameter tube tube head of the small-bore tubular heat exchanger that the chemical plant is used at present, repair and adopt the angle grinding machine to polish to finish, use this equipment duration longer, operation labour intensity is big, because tubulation hole, small-bore is little, general lathe or beveling machine can't carry out machining orifice plane, groove etc. to the path tubulation, whole heat exchanger demolition can only be got off, and load onto lathe and process processing, maybe whole heat exchanger done to scrap processing, this causes low, the complicated operation of work efficiency.
The purpose of this utility model is to overcome above-mentioned weak point of the prior art and a kind of simple to operate, labour intensity is low, the duration is short, work efficiency is high and crudy is good simple electric path tubulation boring and milling head outer is provided.
The purpose of this utility model can reach by following measure: the utility model includes an electric drill, it is characterized in that the afterbody of a centering pin is connected with a little male thread, a bearing is equipped with at the two ends of this little axle respectively, one isolation grommet formation, one integral body is housed between this two bearings also to be fitted into this integral body in the cutter hub, in the cutter hub rear end, pack into a spiral head and this spiral head cutter hub end of packing into withstood a bearing, with spiral head and electric drill thread connection, at cutter hub front end and centering pin concentric blade is installed, this blade is anchored on the cutter hub with a voussoir, and a screw is housed on the voussoir outer face.
Accompanying drawing is the utility model structural principle cutaway view.
The utility model is described in further detail below in conjunction with (accompanying drawing) embodiment: shown in the accompanying drawing, 10 is electric drill, this electric drill 10 can be the speed governing electric drill, also can be the electric hand drill that connects through miniature reducer, afterbody and little bearing 7 thread connection with a centering pin 1, a bearing 5.11 is equipped with at the two ends of this little axle 7 respectively, between this two bearings 5.11, be equipped with one and isolate grommet 6 formations one integral body, with this by centering pin 1, little axle 7, the integral body that bearing 5.11 and isolation grommet 6 constitute is fitted in the cutter hub 9, the spiral head 8 of in cutter hub 9 rear ends, packing into, and this spiral head 8 cutter hub end of packing into is withstood a bearing 11, with spiral head 8 and electric drill 10 thread connection, at cutter hub 9 front ends and centering pin 1 concentric blade 2 is installed, this blade 2 usefulness one voussoir 4 is anchored on the cutter hub 9, one screw 3 is housed on voussoir 4 outer faces, this screw 3 is used for voussoir 4 is exerted pressure with fastening blade 2, the designed simple electric path tubulation boring and milling head outer that provides of the utility model so just has been provided, the utility model operation principle is as follows: centering pin 1 front end is inserted in the path tubulation hole, realize cutter (blade 2) centering, start electric drill 10, electric drill 10 rotates and drives spiral head 8 rotations, spiral head 8 rotating band moving knife bodies 9 rotate, cutter hub 9 rotates and makes blade 2 rotations carry out Milling Process, and this moment, centering pin 1 and little axle 7 did not rotate.Centering pin can be used the different-diameter specification instead, with the processing of the path tubulation that adapts to different size.
The utility model has following advantage compared to existing technology:
1, since only need with centering pin insert align in the path tubulation hole can to the plane of path tubulation, The angle welding of groove or tube sheet, R weld groove etc. carry out Milling Process, maintenance, thereby simple to operate.
2, owing to the path tubulation added need not whole heat exchanger under the demolition man-hour, also can several people use several simultaneously and process, thereby labour intensity to be low, the duration is short, and operating efficiency improves greatly.
3. because centering pin does not rotate, can not damage path tubulation endoporus, thereby crudy is good in process.
Claims (1)
1, a kind of simple electric path tubulation boring and milling head outer, include an electric drill, it is characterized in that the afterbody of a centering pin is connected with a little male thread, a bearing is equipped with at the two ends of this little axle respectively, one isolation grommet formation, one integral body is housed between this two bearings also to be fitted into this integral body in the cutter hub, in the cutter hub rear end, pack into a spiral head and this spiral head cutter hub end of packing into withstood a bearing, with spiral head and electric drill thread connection, at cutter hub front end and centering pin concentric blade is installed, this blade is anchored on the cutter hub with a voussoir, and a screw is housed on the voussoir outer face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97237810 CN2302076Y (en) | 1997-10-05 | 1997-10-05 | Electric small-bore boring and milling head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97237810 CN2302076Y (en) | 1997-10-05 | 1997-10-05 | Electric small-bore boring and milling head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2302076Y true CN2302076Y (en) | 1998-12-30 |
Family
ID=33948373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97237810 Expired - Lifetime CN2302076Y (en) | 1997-10-05 | 1997-10-05 | Electric small-bore boring and milling head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2302076Y (en) |
-
1997
- 1997-10-05 CN CN 97237810 patent/CN2302076Y/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |