CN205673621U - Major diameter inside and outside circle boring cutter - Google Patents
Major diameter inside and outside circle boring cutter Download PDFInfo
- Publication number
- CN205673621U CN205673621U CN201620591978.4U CN201620591978U CN205673621U CN 205673621 U CN205673621 U CN 205673621U CN 201620591978 U CN201620591978 U CN 201620591978U CN 205673621 U CN205673621 U CN 205673621U
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- knife bar
- cutter head
- connecting rod
- main shaft
- plane
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Abstract
The utility model relates to a kind of major diameter inside and outside circle boring cutter, including knife bar and cutter head, a cutter head is respectively installed at the two ends of knife bar, and the two ends of knife bar and the junction of cutter head are the first plane, and the first plane has installing hole, cutter head is fixed in installing hole by bearing pin, being provided with connecting rod below the centre of knife bar, connecting rod is connected with main shaft, and main shaft is provided with sleeve, connecting rod passes through bearing pin and sleeve connection, and knife bar is the second plane with the junction of connecting rod.Boring bar of the present utility model is face with cutter head and main shaft junction and contacts, and compared with the linear contact lay mode of existing mounting structure, connects more stable, is difficult to loosening phenomenon occur, and connective stability is preferable, improves operating efficiency and machining accuracy.
Description
Technical field
The utility model relates to machine tool technical field, especially a kind of major diameter inside and outside circle boring cutter.
Background technology
The reason that major diameter boring difficult processing a lot, for meeting good rigid and cutting ability, major diameter boring cutter
It is generally of bigger moment of torsion and impulsive force, between cutter head and knife bar, between knife bar and main shaft, must have good tautness,
The so working strength of guarantee cutter and cutting precision.Existing boring bar is generally pylindrical, knife bar and cutter head and
Main shaft end face is linear contact lay, and connective stability is poor, when running into heavy caliber bore hole, easily occurs loosening phenomenon, has a strong impact on
Operating efficiency and cutting precision, What is more also results in serious potential safety hazard.
Utility model content
The technical problems to be solved in the utility model is: generally pylindrical in order to solve existing boring bar, knife bar
Being linear contact lay with cutter head and main shaft end face, connective stability is poor, when running into heavy caliber bore hole, easily occurs loosening phenomenon,
Having a strong impact on operating efficiency and cutting precision, What is more also results in the problem of serious potential safety hazard, provides a kind of big straight
Footpath inside and outside circle boring cutter.
The utility model solves its technical problem and be the technical scheme is that a kind of major diameter inside and outside circle boring cutter, including
Knife bar and cutter head, the two ends of described knife bar respectively install a cutter head, and the two ends of described knife bar and the junction of cutter head are first flat
Face, described first plane has installing hole, and described cutter head is fixed in installing hole by bearing pin, below the centre of described knife bar
Being provided with connecting rod, described connecting rod is connected with main shaft, and described main shaft is provided with sleeve, and described connecting rod is by bearing pin with sleeve even
Connecing, described knife bar is the second plane with the junction of connecting rod.Knife bar is plane with the joint face of cutter head, and knife bar connects with cutter head
Contacting surface is plane, compared with the linear contact lay mode of existing mounting structure, connects more stable, is difficult to loosening phenomenon occur；Knife bar with
The junction of connecting rod is also plane, and knife bar is that face contacts with main shaft end face, and contact area is bigger, and connective stability is preferable, carries
High operating efficiency and machining accuracy.
Described knife bar is stepped, and the two ends diameter of knife bar, less than the diameter of interlude, alleviates the quality at knife bar two ends,
Thus centrifugal force when reducing boring cutter work, prevent cutter head from throwing away and cause potential safety hazard, affect operating efficiency.
The beneficial effects of the utility model are, boring bar of the present utility model is face with cutter head and main shaft junction and connects
Touching, compared with the linear contact lay mode of existing mounting structure, connecting more stable, be difficult to loosening phenomenon occur, connective stability is preferable,
Improve operating efficiency and machining accuracy.
Brief description
With embodiment, the utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of knife bar in the utility model.
In figure: 1. knife bar, 2. cutter head, 3. connecting rod, 4. main shaft, 5. sleeve, 6. bearing pin, 7. the first plane, 8. second is flat
Face.
Detailed description of the invention
Presently in connection with accompanying drawing, the utility model is described in further detail.These accompanying drawings are the schematic diagram of simplification,
Basic structure of the present utility model is described only in a schematic way, and therefore it only shows the composition relevant with the utility model.
As illustrated in fig. 1 and 2, a kind of major diameter inside and outside circle boring cutter, including knife bar 1 and cutter head 2, the two ends of described knife bar 1 are each
Installing a cutter head 2, the two ends of described knife bar 1 and the junction of cutter head 2 are the first plane 7, and described first plane 7 has peace
Dress hole, described cutter head 2 is fixed in installing hole by bearing pin 6, and described knife bar 1 is stepped, during the two ends diameter of knife bar 1 is less than
Between the diameter of section, be provided with connecting rod 3 below the centre of described knife bar 1, described connecting rod 3 is connected with main shaft 4, on described main shaft 4
Being provided with sleeve 5, described connecting rod 3 is connected with sleeve 5 by bearing pin 6, and described knife bar 1 and the junction of connecting rod 3 are second flat
Face 8.Knife bar 1 is plane with the joint face of cutter head 2, and knife bar 1 is plane with the contact surface of cutter head 2, the line with existing mounting structure
The way of contact is compared, and connects more stable, is difficult to loosening phenomenon occur；Knife bar 1 is also plane with the junction of connecting rod 3, knife bar 1
Being that face contacts with main shaft 4 end face, contact area is bigger, and connective stability is preferable, improves operating efficiency and machining accuracy, knife bar
1 is designed as structure small in ends broad in the middle, alleviates the quality at knife bar 1 two ends, thus reduces centrifugal force when boring cutter works,
Prevent cutter head 2 from throwing away and cause potential safety hazard, affect operating efficiency.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, related work people
Member can carry out various change and modification completely in the range of without departing from this utility model technological thought.This reality
The content being not limited on specification by novel technical scope, it is necessary to determine its technology according to right
Property scope.
Claims (2)
1. a major diameter inside and outside circle boring cutter, it is characterised in that: include knife bar (1) and cutter head (2), the two ends of described knife bar (1)
Each installing a cutter head (2), the two ends of described knife bar (1) are the first plane (7) with the junction of cutter head (2), described first flat
Having installing hole on face (7), described cutter head (2) is fixed in installing hole, below the centre of described knife bar (1) by bearing pin (6)
Being provided with connecting rod (3), described connecting rod (3) is connected with main shaft (4), and described main shaft (4) is provided with sleeve (5), described connecting rod
(3) being connected with sleeve (5) by bearing pin (6), described knife bar (1) is the second plane (8) with the junction of connecting rod (3).
2. major diameter inside and outside circle boring cutter as claimed in claim 1, it is characterised in that: described knife bar (1) is stepped, knife bar
(1) two ends diameter is less than the diameter of interlude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620591978.4U CN205673621U (en) | 2016-06-16 | 2016-06-16 | Major diameter inside and outside circle boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620591978.4U CN205673621U (en) | 2016-06-16 | 2016-06-16 | Major diameter inside and outside circle boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205673621U true CN205673621U (en) | 2016-11-09 |
Family
ID=57433413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620591978.4U Active CN205673621U (en) | 2016-06-16 | 2016-06-16 | Major diameter inside and outside circle boring cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205673621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109465470A (en) * | 2018-11-15 | 2019-03-15 | 北京沙河冶金机械制造有限公司 | A kind of knife bar on console mode boring and milling machine |
-
2016
- 2016-06-16 CN CN201620591978.4U patent/CN205673621U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109465470A (en) * | 2018-11-15 | 2019-03-15 | 北京沙河冶金机械制造有限公司 | A kind of knife bar on console mode boring and milling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |