CN202070829U - Scraping knife bar - Google Patents
Scraping knife bar Download PDFInfo
- Publication number
- CN202070829U CN202070829U CN201120063462XU CN201120063462U CN202070829U CN 202070829 U CN202070829 U CN 202070829U CN 201120063462X U CN201120063462X U CN 201120063462XU CN 201120063462 U CN201120063462 U CN 201120063462U CN 202070829 U CN202070829 U CN 202070829U
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- CN
- China
- Prior art keywords
- hole
- processed
- location division
- knife bar
- positioning blocks
- 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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Abstract
The utility model discloses a scraping knife bar, which belongs to the technical field of a scraping knife, and comprises a positioning part, wherein positioning blocks with good wear resistance are fixed on the positioning part, and the sides of the positioning blocks are in the same cylindrical surface. The diameter of a cylinder in which the sides of the positioning blocks are arranged is the same as the internal diameter of a hole to be processed, when the scraping knife bar is used, the positioning part is inserted in the hole to be processed, and the sides of the positioning blocks are attached with the inner wall of the hole to be processed. The positioning blocks with good wear resistance replace the original positioning part to be matched with the hole to be processed, and the sides of the positioning blocks are used for positioning. The service life of the scraping knife bar is greatly improved and can reach above 3 years, the production cost is lowered, and the economic benefit of an enterprise is improved. Meanwhile, the materials of the other parts of the knife bar are not changed, only the price of the materials of the positioning blocks is more expensive, but the occupied proportion of the positioning blocks is very small, so the material cost cannot be greatly influenced.
Description
Technical field
The utility model belongs to draws together the cutter technical field, relates to a kind of scraper lever specifically.
Background technology
Draw together cutter and comprise knife bar and blade, draw together cutter be used for outside workpiece hole to be processed processing and this hole coaxial draw together the hole.For guaranteeing hole to be processed and draw together axiality between the hole, the end of scraper lever is provided with the location division of matching with hole to be processed, and blade is coaxial with the location division, is arranged on a side of location division.Add man-hour, the inside in hole to be processed is stretched in the location division, forms with hole to be processed to cooperate, make location division and hole to be processed coaxial, blade is a benchmark with the axis of location division during work, workpiece rotation relatively, the end face of cutting workpiece, on workpiece, process one with the location division coaxial draw together the hole.And the location division is coaxial with hole to be processed, so it is coaxial with hole to be processed to draw together the hole.From then on as can be seen, the axiality between location division and the hole to be processed directly has influence on the axiality of drawing together between hole and the hole to be processed.And to guarantee to draw together axiality between hole and the hole to be processed, and must guarantee to cooperate closely between location division and the hole to be processed, there is not bigger gap.This has just caused between location division and the hole to be processed frictional force very big.Traditional location division all is and one section cylinder of knife bar one, considers the cost reason, can not make knife bar with extraordinary material of wearability such as hard alloy steel etc. all over.Therefore the location division is easy to wearing and tearing, and causes the diameter of location division more and more littler, and the gap between location division and the hole to be processed is increasing.After using two or three months, just need to change so draw together the knife bar of cutter, increased use cost.
Summary of the invention
The utility model provides a kind of scraper lever at deficiency of the prior art, can increase the service life greatly.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of scraper lever, comprise the location division, and be fixed with the good locating piece of wearability on the described location division, the side of described locating piece is in the same face of cylinder.The diameter of place, the side cylinder of locating piece is identical with the internal diameter in hole to be processed, and during use, insert in the hole to be processed the location division, and the side of locating piece and the inwall in hole to be processed are fitted.Replace original location division with the good locating piece of wearability and cooperate, with location, locating piece side with hole to be processed.Improve the service life of scraper lever greatly, can reach more than 3 years, reduces production costs, and improved the economic benefit of company.The material of other position of knife bar does not still change simultaneously, have only the material price of locating piece more expensive, and the proportion that locating piece accounts for is very little, so can not produce too much influence to material cost.
In the technique scheme, described location division is provided with draw-in groove, and described locating piece is fixed in the described draw-in groove.Locating piece snaps onto in the draw-in groove, and fixing with welding, and this fixed form is reliable, is not easy to come off.
In the technique scheme, described locating piece has four, and described draw-in groove has four, is provided with a fixed block in described each draw-in groove.Locating piece can influence the stability of location very little.
In the technique scheme, described position point is cylindrical, and on the cross section of described location division, the cross section of described draw-in groove evenly distributes along the center of location division.Draw-in groove evenly distributes, and locating piece also evenly distributes thereupon, guarantees the stability of location.
The beneficial effects of the utility model are: 1) replace original location division with the good locating piece of wearability and cooperate with hole to be processed, with location, locating piece side, improve the service life of scraper lever greatly, can reach more than 3 years, reduce production costs, improved the economic benefit of company.2) material of other position of knife bar does not still change, and have only the material price of locating piece more expensive, and the proportion that locating piece accounts for is very little, so can not produce too much influence to material cost.
Description of drawings
Fig. 1 is the schematic diagram of scraper lever.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is a schematic diagram of drawing together cutter.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail.
Referring to Fig. 1, a kind of scraper lever, the one section tapering 11 of the left part of described knife bar for matching with the drilling machine tailstock, the centre position of knife bar is provided with screw thread 12, and the right part of knife bar is fixed part 13 and location division 14, is cylindrical on the location division 14, location division 14 offers four draw-in grooves 141, by being welded with a locating piece 142, locating piece 142 is made for carbide alloy in each draw-in groove 141, and wearability is better.The side of described locating piece 142 is in the same face of cylinder.Fixed part 13 is provided with screw 131.For the side that guarantees locating piece 142 in the same face of cylinder, need after locating piece 142 installs, use grinding machine.
Referring to Fig. 2, on the cross section of described location division 14,14 center evenly distributes along the location division in the cross section of described draw-in groove 141.
Referring to Fig. 3, a kind of cutter of drawing together comprises scraper lever, nut 3, pad 4 and blade 5, and nut 3 and screw thread 12 match, and blade 5 is by being bolted on the fixed part 13, and the two ends of pad 4 lean with nut 3 and blade 5 respectively.
When drawing together the cutter assembling, earlier nut 3 is screwed on the screw thread 12, and then cover Upper gasket 4, load onto blade 5 at last, constantly turn nut 3 and move right, promote pad 4 and move right, hold out against blade 5 up to pad 4, this has just finished the assembling of drawing together cutter.
Claims (4)
1. a scraper lever comprises location division (14), it is characterized in that: be fixed with the good locating piece of wearability (142) on described location division (14), the side of described locating piece (142) is in the same face of cylinder.
2. scraper lever according to claim 1 is characterized in that: described location division (14) are provided with draw-in groove (141), and described locating piece (142) is fixed in the described draw-in groove (141).
3. scraper lever according to claim 1 and 2 is characterized in that: described locating piece (142) has four, and described draw-in groove (141) has four, is fixed with a locating piece (142) in described each draw-in groove (141).
4. scraper lever according to claim 3 is characterized in that: described location division (14) circle of position cylindricality, on the cross section of described location division (14), the center of (14) evenly distributes along the location division in the cross section of described draw-in groove (141).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120063462XU CN202070829U (en) | 2011-03-11 | 2011-03-11 | Scraping knife bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120063462XU CN202070829U (en) | 2011-03-11 | 2011-03-11 | Scraping knife bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202070829U true CN202070829U (en) | 2011-12-14 |
Family
ID=45108939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120063462XU Expired - Fee Related CN202070829U (en) | 2011-03-11 | 2011-03-11 | Scraping knife bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202070829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570575A (en) * | 2018-11-27 | 2019-04-05 | 安徽合力股份有限公司合肥铸锻厂 | A kind of quick change counterbit positioned using needle roller |
-
2011
- 2011-03-11 CN CN201120063462XU patent/CN202070829U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570575A (en) * | 2018-11-27 | 2019-04-05 | 安徽合力股份有限公司合肥铸锻厂 | A kind of quick change counterbit positioned using needle roller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20150311 |
|
| EXPY | Termination of patent right or utility model |