CN203171080U - Ladder scraper for machining bearing bracket - Google Patents
Ladder scraper for machining bearing bracket Download PDFInfo
- Publication number
- CN203171080U CN203171080U CN 201320224263 CN201320224263U CN203171080U CN 203171080 U CN203171080 U CN 203171080U CN 201320224263 CN201320224263 CN 201320224263 CN 201320224263 U CN201320224263 U CN 201320224263U CN 203171080 U CN203171080 U CN 203171080U
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- ladder
- blade
- scraper
- angle
- cutter head
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Abstract
The utility model discloses a ladder scraper for machining a bearing bracket, and relates to a ladder scraper. The ladder scraper aims at solving the problems that step bearing holes in the available bearing bracket are machined at present, step holes with different diameters are machined respectively by two cutters, the machining efficiency is low and the coaxial accuracy of the machined step holes is poor. A ladder blade 2 comprises a first cutter head, a hollow cutter head, a second cutter head and a cutter head seat axially from front to back, wherein a first upper blade and a first lower blade are arranged symmetrically along a horizontal center line of the ladder blade; a second upper blade and a second lower blade are arranged symmetrically along the horizontal center line of the ladder blade; the diameter of a first outer circle formed by front angle peaks of the first upper blade and front angle peaks of the first lower blade is less than that of a second outer circle formed by front angle peaks of the second upper blade and front angle peaks of the second lower blade; front angles are 12 degrees; radial relief angles are 8 degrees; end face relief angles are 8 degrees; the ladder blade and a cutter handle are arranged coaxially; and the cutter head seat is connected with the cutter handle. The ladder scraper is used for machining the bearing bracket.
Description
Technical field
The utility model relates to the scraper that a kind of machining bearing frame is used, and is specifically related to a kind of ladder scraper for the machining bearing frame.
Background technology
Bearing bracket stand is one of parts of marine turbing unit, in the design of bearing bracket stand two planes of arc a plurality of step dead eyes are arranged, be used for laying ball bearing, when processing the dead eye of these parts, adopted two cutters to process Φ 33 and Φ 40 stepped holes respectively in the past, increased the process of changing cutter in the processing, not only working (machining) efficiency is low, and the coaxial precision of each stepped hole after the processing is not ideal enough.
The utility model content
The purpose of this utility model is for solving the step dead eye on the existing machining bearing frame, adopt two cutters to process the different stepped hole in aperture respectively, increased the non-cutting time in the processing, not only working (machining) efficiency is low, and the problem of the coaxial low precision of each stepped hole after the processing, a kind of ladder scraper for the machining bearing frame is provided.
The utility model comprises handle of a knife and ladder blade, the ladder blade is followed successively by first cutter head vertically from front to back, empty cutter head, second cutter head and tool tip, on first cutter head, the lower surface is respectively equipped with first upper knife edge and first time blade, first upper knife edge and first time blade are symmetrical arranged with the horizontal center line of ladder blade, on second cutter head, the lower surface is respectively equipped with second upper knife edge and second time blade, second upper knife edge and second time blade are symmetrical arranged with the horizontal center line of ladder blade, the preceding angular vertex of first upper knife edge and formed first outside diameter of the preceding angular vertex of first time blade are less than the preceding angular vertex of second upper knife edge and formed second outside diameter of preceding angular vertex of second time blade, the anterior angle of first upper knife edge, the anterior angle of first time blade, the anterior angle of the anterior angle of second upper knife edge and second time blade is all identical, and each anterior angle is 10 °～14 °, the radial clearance angle of first upper knife edge, the radial clearance angle of first time blade, the radial clearance angle of the radial clearance angle of second upper knife edge and second time blade is all identical, and each radial clearance angle is 6 °～10 °, the face relief angle of first cutter head is identical with the face relief angle of second cutter head, each face relief angle is 6 °～10 °, ladder blade and the coaxial setting of handle of a knife, and tool tip links to each other with handle of a knife.
The utility model compared with prior art has following beneficial effect: first cutter head of the present utility model and second cutter head form the ladder scraper that is made into integration, add and reduced replacing cutter process man-hour, saved the non-cutting time in the processing, working (machining) efficiency was more than doubled than originally, improve machining status, improved machining accuracy.
Description of drawings
Fig. 1 is overall structure front view of the present utility model, and Fig. 2 is the vertical view of Fig. 1, and Fig. 3 is the left view of Fig. 1, when Fig. 4 is the bearing bracket stand of processing marine turbing unit, and the schematic diagram of scraper each several part physical dimension of the present utility model.
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1～Fig. 3, present embodiment comprises handle of a knife 1 and ladder blade 2, ladder blade 2 is followed successively by the first cutter head 2-1 vertically from front to back, empty cutter head 2-2, the second cutter head 2-3 and tool tip 2-4, on the first cutter head 2-1, the lower surface is respectively equipped with the first upper knife edge 2-1-1 and first time blade 2-1-2, the first upper knife edge 2-1-1 and first time blade 2-1-2 are symmetrical arranged with the horizontal center line of ladder blade 2, on the second cutter head 2-3, the lower surface is respectively equipped with the second upper knife edge 2-3-1 and second time blade 2-3-2, the second upper knife edge 2-3-1 and second time blade 2-3-2 are symmetrical arranged with the horizontal center line of ladder blade 2, the formed first outside diameter D1 of the preceding angular vertex of the first upper knife edge 2-1-1 and the preceding angular vertex of first time blade 2-1-2 is less than the preceding angular vertex of the second upper knife edge 2-3-1 and the formed second outside diameter D2 of preceding angular vertex of second time blade 2-3-2, the anterior angle of the first upper knife edge 2-1-1, the anterior angle of first time blade 2-1-2, the anterior angle of the anterior angle of the second upper knife edge 2-3-1 and second time blade 2-3-2 is all identical, and each anterior angle α is 10 °～14 °, see Fig. 2, the radial clearance angle of the first upper knife edge 2-1-1, the radial clearance angle of first time blade 2-1-2, the radial clearance angle of the radial clearance angle of the second upper knife edge 2-3-1 and second time blade 2-3-2 is all identical, and each radial clearance angle γ is 6 °～10 °, see Fig. 3, the face relief angle of the first cutter head 2-1 is identical with the face relief angle of the second cutter head 2-3, each face relief angle β is 6 °～10 °, see Fig. 2, ladder blade 2 and handle of a knife 1 coaxial setting, and tool tip 2-4 links to each other with handle of a knife 1.Empty cutter head 2-2 can be machined to root at the bottom of making and adding each hole in man-hour, reaches the back chipping requirement.
The specific embodiment two: in conjunction with Fig. 2 present embodiment is described, the anterior angle α of present embodiment is 8 °.This numerical value is the best angle of anterior angle α.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment three: in conjunction with Fig. 2 present embodiment is described, the anterior angle α of present embodiment is 9 °.This numerical value is the best angle of anterior angle α.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment four: in conjunction with Fig. 3 present embodiment is described, the radial clearance angle γ of present embodiment is 8 °.This numerical value is the best angle of radial clearance angle γ.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment five: in conjunction with Fig. 3 present embodiment is described, the radial clearance angle γ of present embodiment is 9 °.This numerical value is the best angle of radial clearance angle γ.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment six: in conjunction with Fig. 2 present embodiment is described, the face relief angle β of present embodiment is 8 °.This numerical value is the best angle of face relief angle β.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment seven: in conjunction with Fig. 2 present embodiment is described, the face relief angle β of present embodiment is 9 °.This numerical value is the best angle of face relief angle β.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment eight: in conjunction with Fig. 1 and Fig. 2 present embodiment is described, the outer surface of the handle of a knife 1 of present embodiment has tapering, and its tapering is identical with the boring spindle taper hole, and big footpath one end of handle of a knife 1 is towards tool tip 2-4.Clamping is convenient in design like this.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment nine: in conjunction with Fig. 1 present embodiment is described, the tail end of the handle of a knife 1 of present embodiment is provided with tang 1-1, and the thickness t of tang 1-1 is 7mm～9mm.Clamping is convenient in design like this.Other composition is identical with the specific embodiment eight with annexation.
The specific embodiment ten: in conjunction with Fig. 1 present embodiment is described, the thickness t of the tang 1-1 of present embodiment is 7.9mm.This numerical value is the best angle of tang thickness.Other composition is identical with the specific embodiment nine with annexation.
Application example of the present utility model: see Fig. 4, utilize centre drill to bore the centre bore of each dead eye earlier, guarantee the position accuracy demand in hole.Utilize Φ 28 bit drills bearing cross holes then.Utilize the accurate Φ 33 of scraper time processing of the present utility model and 40 liang of step dead eyes of Φ at last.
Claims (10)
1. ladder scraper that is used for the machining bearing frame, it is characterized in that: described ladder scraper comprises handle of a knife (1) and ladder blade (2), ladder blade (2) is followed successively by first cutter head (2-1) vertically from front to back, empty cutter head (2-2), second cutter head (2-3) and tool tip (2-4), on first cutter head (2-1), the lower surface is respectively equipped with first upper knife edge (2-1-1) and first time blade (2-1-2), first upper knife edge (2-1-1) is symmetrical arranged with the horizontal center line of first time blade (2-1-2) with ladder blade (2), on second cutter head (2-3), the lower surface is respectively equipped with second upper knife edge (2-3-1) and second time blade (2-3-2), second upper knife edge (2-3-1) is symmetrical arranged with the horizontal center line of second time blade (2-3-2) with ladder blade (2), formed first outside diameter of the preceding angular vertex of the preceding angular vertex of first upper knife edge (2-1-1) and first time blade (2-1-2) (D1) is less than the preceding angular vertex of second upper knife edge (2-3-1) and formed second outside diameter of preceding angular vertex (D2) of second time blade (2-3-2), the anterior angle of first upper knife edge (2-1-1), the anterior angle of first time blade (2-1-2), the anterior angle of second upper knife edge (2-3-1) is all identical with the anterior angle of second time blade (2-3-2), and each anterior angle (α) is 10 °～14 °, the radial clearance angle of first upper knife edge (2-1-1), the radial clearance angle of first time blade (2-1-2), the radial clearance angle of second upper knife edge (2-3-1) is all identical with the radial clearance angle of second time blade (2-3-2), and each radial clearance angle (γ) is 6 °～10 °, the face relief angle of first cutter head (2-1) is identical with the face relief angle of second cutter head (2-3), each face relief angle (β) is 6 °～10 °, ladder blade (2) and the coaxial setting of handle of a knife (1), and tool tip (2-4) links to each other with handle of a knife (1).
2. according to the described a kind of ladder scraper for the machining bearing frame of claim 1, it is characterized in that: described anterior angle (α) is 8 °.
3. according to the described a kind of ladder scraper for the machining bearing frame of claim 1, it is characterized in that: described anterior angle (α) is 9 °.
4. according to the described a kind of ladder scraper for the machining bearing frame of claim 1, it is characterized in that: described radial clearance angle (γ) is 8 °.
5. according to the described a kind of ladder scraper for the machining bearing frame of claim 1, it is characterized in that: described radial clearance angle (γ) is 9 °.
6. according to the described a kind of ladder scraper for the machining bearing frame of claim 1, it is characterized in that: described face relief angle (β) is 8 °.
7. according to the described a kind of ladder scraper for the machining bearing frame of claim 1, it is characterized in that: described face relief angle (β) is 9 °.
8. according to the described a kind of ladder scraper for the machining bearing frame of claim 1, it is characterized in that: the outer surface of described handle of a knife (1) has tapering, and big footpath one end of handle of a knife (1) is towards tool tip (2-4).
9. described a kind of ladder scraper for the machining bearing frame according to Claim 8, it is characterized in that: the tail end of handle of a knife (1) is provided with tang (1-1), and the thickness (t) of tang (1-1) is 7mm～9mm.
10. according to the described a kind of ladder scraper for the machining bearing frame of claim 9, it is characterized in that: the thickness (t) of tang (1-1) is 7.9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320224263 CN203171080U (en) | 2013-04-27 | 2013-04-27 | Ladder scraper for machining bearing bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320224263 CN203171080U (en) | 2013-04-27 | 2013-04-27 | Ladder scraper for machining bearing bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203171080U true CN203171080U (en) | 2013-09-04 |
Family
ID=49067833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320224263 Expired - Lifetime CN203171080U (en) | 2013-04-27 | 2013-04-27 | Ladder scraper for machining bearing bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203171080U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227144A (en) * | 2014-09-26 | 2014-12-24 | 哈尔滨汽轮机厂有限责任公司 | Double-edge double-positioning scraper blade for scraping low-pressure inner cylinder through hole of steam turbine |
| CN110877231A (en) * | 2019-06-26 | 2020-03-13 | 宁波爱柯迪精密部件有限公司 | Aluminum die casting processing equipment |
-
2013
- 2013-04-27 CN CN 201320224263 patent/CN203171080U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227144A (en) * | 2014-09-26 | 2014-12-24 | 哈尔滨汽轮机厂有限责任公司 | Double-edge double-positioning scraper blade for scraping low-pressure inner cylinder through hole of steam turbine |
| CN110877231A (en) * | 2019-06-26 | 2020-03-13 | 宁波爱柯迪精密部件有限公司 | Aluminum die casting processing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |