CN212217328U - Scraper for removing burrs in hole - Google Patents
Scraper for removing burrs in hole Download PDFInfo
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- CN212217328U CN212217328U CN201922419631.8U CN201922419631U CN212217328U CN 212217328 U CN212217328 U CN 212217328U CN 201922419631 U CN201922419631 U CN 201922419631U CN 212217328 U CN212217328 U CN 212217328U
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- scraper
- circular arc
- changeover portion
- arc
- knife
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Abstract
The utility model provides a scraper for getting rid of downthehole burr belongs to the processing tool that polishes in mechanical equipment hole and makes technical field, and it specifically includes the handle of a knife, and the one end an organic whole of handle of a knife is connected with the scraper edge of a knife, and the scraper edge of a knife includes two circular arc changeover portions, is first circular arc changeover portion and second circular arc changeover portion respectively, does the tangent line along the tie point of first circular arc changeover portion and second circular arc changeover portion, and the arc center of first circular arc changeover portion sets up in tangential both sides with the arc center of second circular arc changeover portion. Utilize the utility model discloses a scraper is laborsaving during the use, can once only accomplish the getting rid of downthehole burr, and it is fast to get rid of.
Description
Technical Field
The utility model belongs to the technical field of the processing tool that polishes in mechanical equipment hole makes, concretely relates to scraper for getting rid of downthehole burr.
Background
In machining, if a hole or a hole-like part is designed on a machined workpiece, no matter the workpiece is machined by adopting a drilling, reaming or boring method, a lot of burrs are generated on the inner wall of the hole after the machining is finished, so that the process steps for removing the burrs in the hole are basically performed in the bench work procedure, but the existing tool for removing the burrs in the hole has a lot of defects. Referring to fig. 1, a traditional tool for removing burrs in a hole is a scraper or a chamfering device, a tool shank of the tool is short, the tool shank is difficult to stretch into the bottom of the hole when burrs are removed from a long hole, and the burrs cannot be removed in place at one time, so that the removal speed is low; the knife edge is short, and the use is laborious; the cutter is not durable and will become dull after a period of use, and continued use will produce new burrs on the inner wall of the hole.
SUMMERY OF THE UTILITY MODEL
To above-mentioned among the current get rid of instrument to downthehole burr get rid of the problem that speed is slow, use hard, can produce new burr when using, the utility model provides a scraper for getting rid of downthehole burr, its concrete technical scheme is as follows:
the utility model provides a scraper for getting rid of downthehole burr, includes the handle of a knife, the one end an organic whole of handle of a knife is connected with the scraper edge of a knife, the scraper edge of a knife includes two circular arc changeover portions, is first circular arc changeover portion and second circular arc changeover portion respectively, does the tangent line along the tie point of first circular arc changeover portion and second circular arc changeover portion, the arc center of first circular arc changeover portion sets up in the both sides of tangent line with the arc center of second circular arc changeover portion.
Further limiting, the arc radian of the first arc transition section is 2.5-3 degrees; the arc radian of the second arc transition section is 2-2.8 degrees.
Further defined, the arc length ratio of the first arc transition section to the second arc transition section is 3: 1-5: 1.
further, the length of the knife edge of the scraper is 30-50 mm.
Further inject, the handle of a knife is cylindric, and the length ratio of the cross section circle diameter of handle of a knife and handle of a knife is 1 ~ 15: 60.
further limiting, the non-scraper knife edge connecting end of the knife handle is provided with an anti-skidding resistance block.
Further, the anti-skid resistance block is ellipsoidal.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model discloses get rid of scraper of downthehole burr, its scraper edge of a knife includes two circular arc changeover portions, is first circular arc changeover portion and second circular arc changeover portion respectively, is the tangent line along the tie point of first circular arc changeover portion and second circular arc changeover portion, the arc center of first circular arc changeover portion sets up in the both sides of tangent line with the arc center of second circular arc changeover portion, and is laborsaving when such design not only uses, conveniently gets rid of the burr, polishes easily after the scraper is with the blunt in addition, can reuse after polishing, can not produce the burr again to the hole inner wall because the scraper edge of a knife becomes blunt.
2. The anti-slip resistance block is arranged at the non-scraper knife edge connecting end of the knife handle, the anti-slip resistance block can prevent the scraper from slipping off from the hand of an operator due to slipping in the rotating process, the ellipsoidal design can not scratch the hand of the operator, and the safety of the operator is ensured.
3. The utility model discloses get rid of scraper of downthehole burr, its handle of a knife and scraper edge of a knife are all longer, can stretch into the hole bottom of general design requirement, and it is once only clear with downthehole burr removal, and it is fast to get rid of.
Drawings
FIG. 1 is a schematic view of a prior art deburring blade configuration;
FIG. 2 is a schematic structural view of the deburring blade of the present invention;
wherein, 1-knife handle and 2-scraper edge.
Detailed Description
The technical solution of the present invention is further explained below with reference to the drawings and examples, but the present invention is not limited to the embodiments explained below.
Referring to fig. 2, the utility model discloses a scraper for getting rid of downthehole burr includes handle of a knife 1 and integrative fixed connection at the scraper edge of a knife 2 of 1 one end of handle of a knife, and the scraper edge of a knife includes two circular arc changeover portions, is first circular arc changeover portion and second circular arc changeover portion respectively, and the tangent line is done along the tie point of first circular arc changeover portion and second circular arc changeover portion, the arc center of first circular arc changeover portion sets up in tangential both sides with the arc center of second circular arc changeover portion. The anti-skid resistance block 3 is arranged at the connecting end of the non-scraper knife edge 2 of the knife handle 1, and the anti-skid resistance block 3 is in an ellipsoid shape.
Example 1
In the scraper for removing the burr in the hole, the arc trajectory of the first arc transition section is counterclockwise, the arc trajectory of the second arc transition section is clockwise, the radian of the first arc transition section is 2.5 degrees, the length of the first arc transition section is 11 mm, the radian of the second arc transition section is 2 degrees, and the length of the second arc transition section is 19 mm; the length of the knife edge 2 of the scraper is 30 mm; the cutter handle 1 is cylindrical, the diameter of the cross section of the cutter handle 1 is 8 mm, and the length of the cutter handle is 150 mm; the section of the anti-skid resistance block along the axial direction of the center of the scraper is an ellipse, the radius of the long axis of the ellipse is 5 mm, and the radius of the short axis of the ellipse is 3 mm.
The scraper for removing burrs in the hole in the embodiment comprises the following using method: holding the handle 1 of the scraper by hand, extending the scraper edge 2 into the hole to make the scraper edge 2 tightly attached to the hole wall, and pressing the handle 1 by hand to make the scraper edge 2 rotate for a circle along the inner wall of the hole to complete the removal of burrs.
Example 2
In the scraper for removing burrs in the hole, the arc trajectory of the first arc transition section is clockwise, the arc trajectory of the second arc transition section is counterclockwise, the radian of the first arc transition section is 3 degrees, the length of the first arc transition section is 36 mm, the radian of the second arc transition section is 2.8 degrees, and the length of the second arc transition section is 12 mm; the length of the knife edge 2 of the scraper is 48 mm; the cutter handle 1 is cylindrical, the diameter of the cross section of the cutter handle 1 is 15 mm, and the length of the cutter handle is 450 mm; the section of the anti-skid resistance block 3 along the central axial direction of the scraper is an ellipse, the radius of the long axis of the ellipse is 15 mm, and the radius of the short axis of the ellipse is 12 mm.
Example 3
In the scraper for removing the burr in the hole, the arc trajectory of the first arc transition section is counterclockwise, the arc trajectory of the second arc transition section is clockwise, the radian of the first arc transition section is 2.8 degrees, the length of the first arc transition section is 25 mm, the radian of the second arc transition section is 2.8 degrees, and the length of the second arc transition section is 25 mm; the length of the knife edge 2 of the scraper is 50 mm; the cutter handle 1 is cylindrical, the diameter of the cross section of the cutter handle 1 is 10 mm, and the length of the cutter handle is 350 mm; the section of the anti-skid resistance block 3 along the central axial direction of the scraper is an ellipse, the radius of the long axis of the ellipse is 10 mm, and the radius of the short axis of the ellipse is 8 mm.
Example 4
In the scraper for removing the burrs in the hole, the arc trajectory of the first arc transition section is clockwise, the arc trajectory of the second arc transition section is counterclockwise, the radian of the first arc transition section is 2.6 degrees, the length of the first arc transition section is 7 mm, the radian of the second arc transition section is 2.5 degrees, and the length of the second arc transition section is 35 mm; the length of the knife edge 2 of the scraper is 42 mm; the cutter handle 1 is cylindrical, the diameter of the cross section of the cutter handle 1 is 12 mm, and the length of the cutter handle is 400 mm; the section of the anti-skid resistance block 3 along the central axial direction of the scraper is an ellipse, the radius of the long axis of the ellipse is 12 mm, and the radius of the short axis of the ellipse is 9 mm.
Claims (7)
1. The utility model provides a scraper for getting rid of downthehole burr, includes handle of a knife (1), its characterized in that, the one end an organic whole of handle of a knife (1) is connected with scraper edge of a knife (2), scraper edge of a knife (2) include two circular arc changeover portions, are first circular arc changeover portion and second circular arc changeover portion respectively, do the tangent line along the tie point of first circular arc changeover portion and second circular arc changeover portion, the arc center of first circular arc changeover portion sets up in tangential both sides with the arc center of second circular arc changeover portion.
2. The scraper for deburring in holes of claim 1, wherein the arc radian of the first arc transition section is 2.5 to 3 °; the arc radian of the second arc transition section is 2-2.8 degrees.
3. A scraper for deburring in a hole according to claim 1 or 2 wherein the arc length ratio of said first arc transition to said second arc transition is 3: 1-5: 1.
4. a scraper for deburring inside holes according to claim 1, characterized in that the length of the blade edge (2) is 30-50 mm.
5. The scraper for removing burrs in a hole according to claim 1, wherein the shank (1) is cylindrical, and the ratio of the diameter of the cross section circle of the shank (1) to the length of the shank (1) is 1-15: 60.
6. a scraper for deburring in holes according to claim 5 characterized in that the non-scraper edge (2) connecting end of the shank (1) is provided with an anti-slip resistance block (3).
7. A scraper for deburring in holes according to claim 6 characterized in that said anti-slip resistance block (3) is ellipsoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922419631.8U CN212217328U (en) | 2019-12-27 | 2019-12-27 | Scraper for removing burrs in hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922419631.8U CN212217328U (en) | 2019-12-27 | 2019-12-27 | Scraper for removing burrs in hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212217328U true CN212217328U (en) | 2020-12-25 |
Family
ID=73901529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922419631.8U Active CN212217328U (en) | 2019-12-27 | 2019-12-27 | Scraper for removing burrs in hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212217328U (en) |
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2019
- 2019-12-27 CN CN201922419631.8U patent/CN212217328U/en active Active
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