CN2633480Y - Internal and external screw type boron nitrile adjustable boring cutter head - Google Patents
Internal and external screw type boron nitrile adjustable boring cutter head Download PDFInfo
- Publication number
- CN2633480Y CN2633480Y CN 03250160 CN03250160U CN2633480Y CN 2633480 Y CN2633480 Y CN 2633480Y CN 03250160 CN03250160 CN 03250160 CN 03250160 U CN03250160 U CN 03250160U CN 2633480 Y CN2633480 Y CN 2633480Y
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- cutter head
- boring
- retreat
- advance
- internal
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Abstract
An internal and external screw type boron nitrile adjustable boring cutter head is characterized in that: a cutter head 2, an advance-retreat connecting fitting 5, a spring washer 6 and a fastening nut 7 are arranged inside a boring cutter bar 1, wherein, one end of the advance-retreat connecting fitting 5 is connected with the cutter head 2 through screw-threaded joint, while the other end is limited by the spring washer 6 and the fastening nut 7. The utility model is flexible and accurate in advance and retreat and has self-locking anti-loosening function, simple structure and convenient operation; meanwhile, it integrates small and big boring apertures to replace grinding by boring and possesses high production efficiency and advanced manufacturing technique, thereby being capable of realizing multi-cutter multi-edge boring during high-hardness big-aperture boring.
Description
One, technical field:
The utility model relates to a kind of boron nitride cutter head, relates in particular to a kind of internal and external threads formula boron nitride adjustable boring tool head.
Two, background technology:
At present, the boron nitride cutter head is mainly by cutter head, blade, the cutter head fastening bolt, compositions such as adjusting nut, the cutter head of boron nitride cutter head is a garden column type stationary structure, self is not with internal thread or external screw thread its cutter head, the advancing of cutter head is that rear end that adjusting nut on the boring bar holds out against cutter head realizes by regulating, retreating of cutter head can not directly hold out against the nut realization by adjusting, but will hold out against earlier nut retreat the rear end that makes cutter head and hold out against have between the nut certain interval or distance back with hand by the withdrawing head, operation is very complicated like this, because cutter head does not have internal and external threads to connect, thereby device does not have self-locking and locking functions, in addition, reasons such as advance and retreat inconvenience owing to cutter head, advance and retreat cutter and multiple-cutting-edge tool setting when (Φ 8-Φ 14mm) and multitool multiple-cutting-edge boring high rigidity large aperture brought difficulty to this device in boring high rigidity small-bore, cause the small-bore cutter of can't advancing and retreat, inaccurate and the easy problem of loosening automatic withdrawal of multiple-cutting-edge tool setting, therefore can only adopt machine holding carbide alloy blade to come the boring small-bore, adopt CBN (boron nitride) cutter head of hilted broadsword single-blade to come the boring large aperture, thereby seriously restricted the raising of production efficiency and product quality, hindered with the operation of boring for grinding process.
Three, summary of the invention:
The purpose of this utility model provides a kind of internal and external threads formula boron nitride adjustable boring tool head, by changing the structure of existing cutter head, solves cutter head in the existing cutter head and can only advance and can not retreat and the problem of complicated operation.
Concrete scheme of the present utility model is: a kind of internal and external threads formula boron nitride adjustable boring tool head, it is characterized in that: cutter head, advance and retreat connector, spring washer are housed in boring cutter bar, hold out against nut, the end of connector of wherein advancing and retreat is threaded with cutter head, and the other end is by spring washer and to hold out against nut spacing.
This programme is equipped with cutter head, spring washer, holds out against nut and advance and retreat connector in boring cutter bar, realize the advance and retreat of cutter head by adjusting to the advance and retreat connector, because the advance and retreat connector is threaded with cutter head, after advancing, cutter head can realize self-locking, because that the effect cutter head of spring washer can be realized after advancing is locking.
Adopt the beneficial effect of such scheme to be: the cutter head advance and retreat are accurate flexibly and have the self-locking locking functions, and are simple in structure, easy to operate, can integrate the big small-bore of boring, and the production efficiency height, and production technology is good.
Four, description of drawings:
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the scheme of installation of the utility model embodiment 1;
Fig. 3 is the structural representation of the utility model embodiment 2;
Fig. 4 is the scheme of installation of the utility model embodiment 2.
Five, the specific embodiment:
From Fig. 1, Fig. 2, Fig. 3, Fig. 4 as can be known: the utility model mainly by cutter head 2, fastening bolt 4, advance and retreat connector 5, spring washer 6, hold out against nut 7, boss 9, groove 10, groove 11 and form, it is characterized in that: cutter head 2, advance and retreat connector 5, spring washer 6 are housed in boring cutter bar 1, hold out against nut 7, the end of connector 5 of wherein advancing and retreat is threaded with cutter head 2, and the other end is by spring washer 6 and to hold out against nut 7 spacing.CBN (boron nitride) blade is installed on cutter head 2, can boring Φ 8mm above high rigidity aperture, realize high speed boring (cutting speed can reach 2 meters of per seconds), improve the circularity and the roughness (circularity can reach 0.003mm, and roughness can reach 0.8～0.6) in aperture.Spring washer 6 can play the effect of loosening.
From Fig. 1, Fig. 2 also as can be known: advance and retreat connector 5 be a screw, and an end of screw is connected with the internal thread of cutter head 2, and the other end is provided with boss 9, and the external diameter of boss 9 and cutter head 2 is all greater than the external diameter of screw.
From Fig. 1, Fig. 2 further as can be known: the bottom of boss 9 has groove 11.The groove 11 that acts on the bottom of boss 9 by screwdriver 8 is realized the advance and retreat of cutter heads 2.
From Fig. 3, Fig. 4 also as can be known: advance and retreat connector 5 is a nut, and an end of nut is connected with the external screw thread of cutter head 2, and the bottom of the other end has groove 10.Can realize the advance and retreat of cutter head 2 by the bottom groove 10 of screwdriver 8 effect nuts.
The utility model is such installment work: during boring, elder generation packs cutter head 2 in the boring cutter bar 1, and with fastening bolt 4 with cutter head 2 slightly fixing (cutter head can not rotate and be advisable), the internal thread of screw and cutter head 2 of packing into from the small through hole of boring cutter bar 1 other end screws, and the boss 9 of screw is stuck on the step of other end macropore at this moment, the spring washer 6 of packing into, screw in the hollow nut 7 that holds out against, boss 9 is fixed tightly on the step of macropore, this moment with screwdriver 8 to left-handed screw, because the boss 9 of screw is fixed on the macropore step, screw turns just makes cutter head 2 advance, rotary screw to the right, cutter head 2 retreats, because the effect at internal and external screw angle, after advancing, realizes cutter head self-locking, because realization was locking after the effect of spring washer 6, cutter head were advanced, and the cutter head operation principle of the cutter head of another kind of external thread structure and female thread structure is the same.
Claims (4)
1, a kind of internal and external threads formula boron nitride adjustable boring tool head, it is characterized in that: cutter head (2), advance and retreat connector (5), spring washer (6) are housed in boring cutter bar (1), hold out against nut (7), the end of connector (5) of wherein advancing and retreat is threaded with cutter head (2), and the other end is by spring washer (6) and to hold out against nut (7) spacing.
2, internal and external threads formula boron nitride adjustable boring tool head according to claim 1, it is characterized in that: advance and retreat connectors (5) are screw, one end of screw is connected with the internal thread of cutter head (2), and the other end is provided with boss (9), and the external diameter of boss (9) and cutter head (2) is all greater than the external diameter of screw.
3, internal and external threads formula boron nitride adjustable boring tool head according to claim 1 is characterized in that: advance and retreat connectors (5) are nut, and an end of nut is connected with the external screw thread of cutter head (2), and the bottom of the other end has groove (10).
4, internal and external threads formula boron nitride adjustable boring tool head according to claim 1, it is characterized in that: the bottom of boss (9) has groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03250160 CN2633480Y (en) | 2003-08-27 | 2003-08-27 | Internal and external screw type boron nitrile adjustable boring cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03250160 CN2633480Y (en) | 2003-08-27 | 2003-08-27 | Internal and external screw type boron nitrile adjustable boring cutter head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2633480Y true CN2633480Y (en) | 2004-08-18 |
Family
ID=34293816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03250160 Expired - Fee Related CN2633480Y (en) | 2003-08-27 | 2003-08-27 | Internal and external screw type boron nitrile adjustable boring cutter head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2633480Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615309A (en) * | 2012-04-27 | 2012-08-01 | 四川百世昌重型机械有限公司 | Porous boring machine for combined boring bar |
| CN102672508A (en) * | 2012-05-11 | 2012-09-19 | 苏州金牛精密机械有限公司 | Self-made machining hole boring cutter rod |
-
2003
- 2003-08-27 CN CN 03250160 patent/CN2633480Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615309A (en) * | 2012-04-27 | 2012-08-01 | 四川百世昌重型机械有限公司 | Porous boring machine for combined boring bar |
| CN102615309B (en) * | 2012-04-27 | 2014-07-23 | 四川百世昌重型机械有限公司 | Porous boring machine for combined boring bar |
| CN102672508A (en) * | 2012-05-11 | 2012-09-19 | 苏州金牛精密机械有限公司 | Self-made machining hole boring cutter rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |