CN201950294U - Reverse counterboring cutting tool - Google Patents
Reverse counterboring cutting tool Download PDFInfo
- Publication number
- CN201950294U CN201950294U CN2011200705269U CN201120070526U CN201950294U CN 201950294 U CN201950294 U CN 201950294U CN 2011200705269 U CN2011200705269 U CN 2011200705269U CN 201120070526 U CN201120070526 U CN 201120070526U CN 201950294 U CN201950294 U CN 201950294U
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- cylinder
- planes
- knife bar
- plane
- cutter hub
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Abstract
The utility model relates to a reverse counterboring cutting tool which comprises a tool body and a tool bar. One end of the tool bar is conic, and the other end of the tool bar is in the shape of a cylinder, wherein two planes which are parallel and symmetrical relative to a center line are processed at the outer end of the cylinder, one included angle in the included angles formed by each of the two planes and an outer circle of the cylinder is set to be a chamfer angle respectively, the two chamfer angles form another two parallel planes which are symmetrical relative to the cylinder, the intersection line between the two planes and the planes which are processed before is the center line of the planes which are processed before, and the two planes do not run through the end part of the outer end of the cylinder. The tool body comprises the cylinder, a hole which corresponds to the end part of the cylinder processed with the planes of the tool bar is processed along the center line of the cylinder, and at least two counterboring tool bits are uniformly distributed on one end surface of the tool body along the center line of the cylinder. The tool body is aligned with the tool bar by the hand, then pushed to move upward and rotated, thereby completing the mounting and the positioning of the tool body; after completing the processing, the tool body is rotated by the hand to correspond to the tool bar, then the tool body can be dismantled, the use is flexible and convenient, and the processing efficiency is greatly improved.
Description
Technical field
The utility model relates to the metal cutting tool technical field, relates in particular to the flat cutter of a kind of anti-ream.
Background technology
In field of machining, usually can run into some back sides and require the flat part of ream, for example back side of pump housing water inlet flange.Because front processing can't be directly carried out in the restriction of structure, cutter, this just needs to adopt dedicated tool.
The normal dedicated tool that adopts of prior art as shown in Figure 1, this cutter comprises a knife bar 1, is processed with a square hole in the end of knife bar 1, and a cutter hub 2 is set in square hole; The end of cutter hub 2 is a cutter head 3.Part carried out anti-ream is flat to add man-hour, at first with knife bar 1 clamping on the drilling machine chuck, an end that is processed with square hole is passed the workpiece hole that will carry out the flat processing of anti-ream, in the square hole of the knife bar 1 of again cutter hub 2 being packed into, with holding screw 4 cutter hub 2 is fixed in knife bar 1 afterwards.Start drilling machine then, lift the drilling machine chuck knife bar 1 is upwards drawn, finish the flat processing of ream after, cutter hub 2 could be broken away from from knife bar 1 after holding screw 4 unclamped, knife bar 1 is withdrawed from from workpiece hole.For the part of producing in batches, the flat processing of anti-ream of each part all will repeat above-mentioned steps, complicated operation, and working (machining) efficiency is very low.
Summary of the invention
At above-mentioned situation, the utility model provides a kind of anti-ream flat cutter, realize location and mounting or dismounting between cutter hub and the knife bar by the less angle of cutter hub rotation relative with knife bar, make the mounting or dismounting between cutter hub and the knife bar convenient, thereby save non-cutting time, increase work efficiency the flat processing of the anti-ream of part.
To achieve these goals, the technical solution of the utility model is as follows:
The flat cutter of a kind of anti-ream comprises cutter hub and knife bar; It is characterized in that,
One end of described knife bar is corresponding coniform with machine tool chief axis, the other end of knife bar is a cylinder, be processed with two planes of one section parallel and relative cylinder symmetry in cylindrical outer end, there is an angle to be provided with chamfering respectively in the angle that described two planes and cylindrical cylindrical form, described two chamferings form two parallel planes in addition of relative cylinder symmetry, these two planes are the center line on the plane of previous processing with the intersection on the plane of previous processing, and these two planes and end, cylindrical outer end do not connect;
Described cutter hub comprises a cylinder, along cylindrical center line be processed with one with knife bar on be processed with the corresponding hole, cylinder end on two planes of one section parallel and relative cylinder symmetry, an end face of described cutter hub is provided with along the uniform flat cutter head of two reams of cylinder center line at least.
Further, the dimensional tolerance between the plane that processes on the cylinder of the hole that processes on the described cutter hub and knife bar and the cylinder cooperates and is matched in clearance.
Further, the distance of the end on the formed plane of chamfering on the described knife bar and end, cylindrical outer end is 3.5 ~ 5mm.
Further, earlier the distributing order on the plane of processing and the formed plane of chamfering afterwards and direction that the lathe rotating shaft is rotated are consistent on the described knife bar.
Further, the dimensional tolerance of the height on the formed plane of chamfering cooperates and is matched in clearance on the cylindrical thickness of described cutter hub and the knife bar.
The beneficial effects of the utility model are, part carried out anti-ream is flat to add man-hour, at first knife bar is passed the workpiece hole that will carry out the flat processing of anti-ream, the corresponding position that is processed with chamfering on the knife bar that is encased in, the hole on the cutter hub with the knife bar end, rotate cutter hub afterwards the plane in the hole of cutter hub is contacted with the formed plane of chamfering on the knife bar, the installation of cutter hub is promptly finished.Moment of torsion is transmitted on the plane that is formed by chamfering, by knife bar cylinder end not chamfered part drive cutter hub and move upward and realize the feed cutting.After machining, machine tool chief axis moves downward the disengaging workpiece, with hand cutter hub is rotated the plane in the hole that makes cutter hub and the plane applying of knife bar processing earlier, and cutter hub is withdrawed from from knife bar.Flexible, the convenience of the mounting or dismounting of cutter hub and knife bar in the whole process, thus working (machining) efficiency improved greatly.
Description of drawings
Fig. 1 is the structural representation of the flat cutter of the anti-ream of prior art.
Fig. 2 is the structural representation of the flat cutter of a kind of anti-ream of the utility model.
Fig. 3 is the structural representation of the knife bar of the flat cutter of a kind of anti-ream of the utility model.
Fig. 4 is the A-A view of Fig. 3.
Fig. 5 is the front view of the cutter hub of the flat cutter of a kind of anti-ream of the utility model.
Fig. 6 is the vertical view of the cutter hub of the flat cutter of a kind of anti-ream of the utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 2, the flat cutter of a kind of anti-ream comprises cutter hub 100 and knife bar 200.
Referring to Fig. 3, Fig. 4, one end of described knife bar 200 is corresponding coniform with machine tool chief axis, the other end of knife bar is a cylinder, be processed with two planes 210 of one section parallel and relative cylinder symmetry in cylindrical outer end, there is an angle to be provided with chamfering respectively in the angle that described two planes 210 and cylindrical cylindrical form, described two chamferings form two parallel planes 220 in addition of relative cylinder symmetry, these two planes 220 are the center line on the plane of previous processing with the intersection on the plane 210 of previous processing, and these two planes 220 do not connect with end, cylindrical outer end; The distance L of the end on these two planes 220 and end, cylindrical outer end is 3.5 ~ 5mm.
Referring to Fig. 5, Fig. 6, described cutter hub 100 comprises a cylinder, along cylindrical center line be processed with one with knife bar on be processed with the corresponding hole 110, cylinder end on two planes of one section parallel and relative cylinder symmetry, an end face of described cutter hub 100 is provided with along the flat cutter head 120 of two uniform reams of cylinder center line at least.
It is matched in clearance that dimensional tolerance between the plane that processes on the cylinder of hole 110 and the knife bar 200 of processing and the cylinder on the described cutter hub 100 cooperates.
Earlier the distributing order on the plane 210 of processing and the formed plane 220 of chamfering afterwards and direction that the lathe rotating shaft is rotated are consistent on the described knife bar 200.
The dimensional tolerance of the height H 2 on the formed plane of chamfering cooperates and is matched in clearance on the cylindrical thickness H1 of described cutter hub 100 and the knife bar.
The utility model carries out to part that anti-ream is flat to add man-hour, at first knife bar 200 is passed the workpiece hole that will carry out the flat processing of anti-ream, the corresponding position that is processed with chamfering on the knife bar 200 that is encased in, the hole on the cutter hub 100 110 with knife bar 200 ends, rotate afterwards that the formed plane 220 of chamfering contacts the installation of cutter hub 100 on plane and the knife bar 200 in hole 110 that cutter hub 100 makes cutter hub 100.Then, moments of torsion are transmitted on the plane 220 that is formed by chamfering, by knife bar 200 cylinder ends not chamfered part drive cutter hub 100 and move upward and realize the feed cutting.After machining, machine tool chief axis moves downward the disengaging workpiece, with hand cutter hub 100 is rotated the plane in the hole 110 that makes cutter hub 100 and plane 210 applyings of knife bar 200 processing earlier, and cutter hub is withdrawed from from knife bar, and the workpiece that processes is pulled down.
The mounting or dismounting of cutter hub and knife bar flexibly, conveniently significantly reduce the non-cutting time to the flat processing of the anti-ream of part, thereby improve working (machining) efficiency greatly in the whole process.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. the flat cutter of anti-ream comprises cutter hub and knife bar; It is characterized in that,
One end of described knife bar is corresponding coniform with machine tool chief axis, the other end of knife bar is one section cylinder, be processed with two planes of one section parallel and relative cylinder symmetry in cylindrical outer end, there is an angle to be provided with chamfering respectively in the angle that described two planes and cylindrical cylindrical form, described two chamferings form two parallel planes in addition of relative cylinder symmetry, these two planes are the center line on the plane of previous processing with the intersection on the plane of previous processing, and these two planes and end, cylindrical outer end do not connect;
Described cutter hub comprises a cylinder, along cylindrical center line be processed with one with knife bar on be processed with the corresponding hole, cylinder end on two planes of one section parallel and relative cylinder symmetry, an end face of described cutter hub is provided with along the uniform flat cutter head of two reams of cylinder center line at least.
2. the flat cutter of a kind of anti-ream according to claim 1 is characterized in that, the dimensional tolerance between the plane that processes on the hole that processes on the described cutter hub and the cylinder of knife bar and the cylinder cooperates and is matched in clearance.
3. the flat cutter of a kind of anti-ream according to claim 1 is characterized in that the distance of the end on the formed plane of chamfering on the described knife bar and end, cylindrical outer end is 3.5 ~ 5mm.
4. the flat cutter of a kind of anti-ream according to claim 1 is characterized in that, earlier the distributing order on the plane of processing and the formed plane of chamfering afterwards and direction that the lathe rotating shaft is rotated are consistent on the described knife bar.
5. the flat cutter of a kind of anti-ream according to claim 1 is characterized in that, the dimensional tolerance of the height on the formed plane of chamfering cooperates and is matched in clearance on the cylindrical thickness of described cutter hub and the knife bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200705269U CN201950294U (en) | 2011-03-17 | 2011-03-17 | Reverse counterboring cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200705269U CN201950294U (en) | 2011-03-17 | 2011-03-17 | Reverse counterboring cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201950294U true CN201950294U (en) | 2011-08-31 |
Family
ID=44494421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200705269U Expired - Fee Related CN201950294U (en) | 2011-03-17 | 2011-03-17 | Reverse counterboring cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201950294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658703A (en) * | 2013-12-13 | 2014-03-26 | 绵阳市绵工工具有限公司 | Reverse scraper |
-
2011
- 2011-03-17 CN CN2011200705269U patent/CN201950294U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658703A (en) * | 2013-12-13 | 2014-03-26 | 绵阳市绵工工具有限公司 | Reverse scraper |
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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: 20110831 Termination date: 20120317 |