CN111842949A - Linkage type double-edge rough boring cutter - Google Patents
Linkage type double-edge rough boring cutter Download PDFInfo
- Publication number
- CN111842949A CN111842949A CN202010845000.7A CN202010845000A CN111842949A CN 111842949 A CN111842949 A CN 111842949A CN 202010845000 A CN202010845000 A CN 202010845000A CN 111842949 A CN111842949 A CN 111842949A
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- Prior art keywords
- hole
- cutter
- cutter body
- gear
- opening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
- B23B27/1614—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/02—Boring bars
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
Linkage type double-edged rough boring cutter, comprising a cutter handle, cutter bodies and two blade seats with blades, wherein an opening is formed in the middle upper part of each cutter body, a gear groove and a central shaft hole are formed in the middle of the bottom of each opening, a screw rod hole is formed in each side edge of each cutter body, bolt holes are formed in the cutter bodies on two sides of each opening, a gear is arranged in each gear groove, a central shaft is arranged in each central shaft hole, an adjusting screw rod or a worm is arranged in each screw rod hole, two push rods are arranged on each gear, the two blade seats are clamped in the openings, push rod grooves are formed in the bottoms of the cutter bodies, kidney-. The heavy boring cutter has simple size adjustment operation, a linkage relation exists between the two blade seats, the two blade seats can be synchronously adjusted by one-time operation, the operation is convenient and quick, the displacement of the two blade seats is ensured to be consistent all the time, in addition, the blade seats adopt a fixing mode of radially clamping from two sides, the blade seats are tightly matched with the cutter body, the cutter is more stable in the cutting process, the machining efficiency is high, and the machining quality is ensured.
Description
Technical Field
The invention relates to the technical field of hole machining tools, in particular to a linkage type double-edge rough boring tool.
Background
The boring cutter is one of hole machining cutters and can be divided into a fine boring cutter and a rough boring cutter, wherein the fine boring cutter is high in scale adjustment precision, and the rough boring cutter is not high in adjustment precision.
The existing rough boring cutter, especially the double-edge rough boring cutter, comprises a cutter body and two blade seats with blades, wherein the two blade seats are respectively provided with an axial waist-shaped hole, a bolt penetrates through the waist-shaped holes to fix the blade seats on the end surface of the cutter body, and when the size needs to be adjusted, the two bolt is loosened, the two blade seats are respectively pushed inwards or outwards by hand or by an adjusting screw, and then the bolt is screwed for fixing.
The adjusting mode is complex to operate and long in time, and particularly, each blade seat is generally fixed by 2 or more bolts at present, so that at least 4 bolts are unscrewed and screwed in each adjustment, the two blade seats are not related and need to be adjusted respectively, displacement is aligned by naked eyes, and the two blade seats are difficult to be adjusted at symmetrical positions to influence processing stability. In addition, the blade seat is fixed on the end face of the cutter body through an axial bolt, the blade seat and the cutter body are not tightly matched, and the connection strength and the rigidity are insufficient, so that the cutter is not stable enough in the cutting process, the machining efficiency is low, and the machining quality cannot be guaranteed.
Disclosure of Invention
The invention aims to solve the defects of the existing structure, provides the linkage type double-edge rough boring cutter, is simple in size adjustment operation, convenient and quick, can synchronously adjust two blade seats in one operation, and ensures that the blade seats are tightly matched with the cutter body, so that the cutter is more stable in the cutting process and the machining efficiency is high.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the linkage type double-blade rough boring cutter comprises a cutter handle, a cutter body and two blade seats with blades, wherein a front-back opening is formed in the middle upper part of the cutter body, a gear groove is formed in the middle of the bottom of the opening, a central shaft hole is formed in the middle of the gear groove, a transverse screw rod hole communicated with the gear groove is formed in the side edge of the cutter body, and bolt holes are formed in the symmetrical positions of the cutter body on the left side and the right side of the middle position of the opening; a gear is arranged in the gear groove, a central shaft with the upper end inserted into the gear is arranged in the central shaft hole, an adjusting screw rod or a worm meshed with the gear is arranged in the screw rod hole, and two symmetrical pushing rods protruding out of the upper surface are arranged on the gear; two blade seats are clamped in the opening, the bottom of the blade seats is respectively provided with a left-right pushing rod groove, the middle position of the blade seats is respectively provided with a kidney-shaped hole, and bolts are arranged in the two bolt holes and the kidney-shaped hole. After the rotation fit, the two push rods are respectively inserted into the two blade seat push rod grooves, and the cutter body structures on two sides of the opening of the bolt are screwed down to clamp the blade seats inwards.
Preferably, the lower part of the opening of the cutter body is provided with a limiting guide groove which is concave towards two sides, and the lower parts of the outward sides of the two blade seats are respectively provided with a convex limiting guide step for axially limiting the blade seats and playing a role in sliding guide when the size is adjusted.
Preferably, the bottom of the inner side of one of the blade seats is provided with an assembling groove communicated with the pushing rod groove in the front-back direction, so that the blade seat is convenient to mount in the opening.
Preferably, a pin hole is formed in one side of the gear groove at the bottom of the opening, a pin is arranged in the pin hole, the upper end of the pin protrudes out of the bottom of the opening and is located in the assembling groove, the assembling groove is plugged by the pin, and scrap iron and the like after cutting are prevented from entering the inner part to influence adjustment and even block the gear.
Preferably, the adjusting screw rod or the worm is provided with an annular limiting groove, the cutter body is provided with a limiting screw/rod hole communicated with the screw rod hole, and the limiting screw/rod is arranged in the limiting screw/rod hole. The end part of the limiting screw/rod is positioned in the limiting groove, so that the axial displacement of the adjusting screw rod or the worm is avoided.
Preferably, the cutter body is provided with a compression screw hole communicated with the central shaft hole, and a compression screw is arranged in the compression screw hole. The central shaft is clamped by the compression screw to avoid the vertical movement, and the compression screw can be a screw.
Preferably, the middle parts of the outward sides of the two blade seats are respectively provided with a convex rib, the end surfaces of the convex ribs are abutted against the inner side surface of the opening of the cutter body, and the fastening effect is better.
Preferably, the bottom of the cutter body is provided with a threaded connecting section for connecting with the cutter handle.
Preferably, a Y-shaped inner cooling hole is formed in the cutter body, the inner cooling hole extends upwards by taking the bottom surface of the connecting section as an inlet, and the two outlets are respectively positioned in the bolt hole direction. Used for circulating cooling water, and counterbores which are consistent with the direction of the inner cooling holes are arranged at the two outlets.
The invention has the beneficial effects that: the heavy boring cutter has simple size adjustment operation, a linkage relation exists between the two blade seats, the two blade seats can be synchronously adjusted by one-time operation, the operation is convenient and quick, the displacement of the two blade seats is ensured to be consistent all the time, in addition, the blade seats adopt a fixing mode of radially clamping from two sides, the blade seats are tightly matched with the cutter body, the connection strength and the rigidity are improved, the cutter is more stable in the cutting process, the processing efficiency is high, and the processing quality is ensured.
Drawings
FIG. 1 is a perspective view of the present invention;
fig. 2 is a front view of the cutter body and the insert holder of the present invention;
fig. 3 is a side view of the cutter body and the insert holder of the present invention;
fig. 4 is a perspective view of the cutter body and the insert holder of the present invention;
fig. 5 is another perspective view of the cutter body and the insert holder of the present invention;
fig. 6 is a left-right cross-sectional view of the cutter body and the insert holder of the present invention;
fig. 7 is a front-to-back sectional view of the cutter body and the insert holder of the present invention;
FIG. 8 is an exploded view of the present invention;
FIG. 9 is a front view of the cutter body of the present invention;
fig. 10 is a perspective view of a cutter body according to the present invention;
FIG. 11 is another perspective view of the blade body of the present invention;
FIG. 12 is a partial block diagram of the present invention;
FIG. 13 is a structural view of a gear portion in the present invention;
fig. 14 is a perspective view of the insert holder of the present invention;
fig. 15 is another perspective view of the insert holder of the present invention.
The main elements in the figures are symbolically illustrated: 1. a cutter body; 1.1, opening; 1.2, gear grooves; 1.3, a central shaft hole; 1.4, screw rod holes; 1.5 bolt holes; 1.6, pin holes; 1.7, limiting screw/rod holes; 1.8, pressing a screw hole; 1.9, limiting guide grooves; 1.10, a connecting section; 1.11, cooling holes in the steel pipe; 2. a blade seat; 2.1, pushing the rod groove; 2.2, a waist-shaped hole; 2.3, assembling a groove; 2.4, limiting and guiding steps; 2.5, convex ribs; 3. a blade; 4. a gear; 5. adjusting a lead screw or worm; 5.1, limiting grooves; 6. a central shaft; 7. a push rod; 8. a bolt; 9. a pin; 10. a set screw/rod; 11. a compression screw; 100. a knife handle.
Detailed Description
The invention will be further illustrated by the following description and the accompanying drawings.
The first embodiment is as follows: as shown in fig. 1-8, the linkage type double-edge rough boring tool comprises a tool shank 100, a tool body 1 and two blade seats 2 with blades 3. Referring to fig. 9-11, the upper middle portion of the cutter body 1 is provided with a front-back opening 1.1, the middle of the bottom of the opening 1.1 is provided with a gear groove 1.2, the middle of the gear groove 1.2 is provided with a central shaft hole 1.3, the side of the cutter body 1 is provided with a transverse screw rod hole 1.4 communicated with the gear groove 1.2, the left and right sides of the cutter body 1 at the middle of the opening 1.1 are provided with bolt holes 1.5 symmetrically, and the lower portion of the opening 1.1 of the cutter body 1 is provided with a limit guide groove 1.9 recessed towards two sides.
As shown in fig. 14-15, the two blade holders 2 are clamped in the opening 1.1, the bottom parts of the two blade holders are respectively provided with a left-right pushing rod groove 2.1, the middle parts of the two blade holders are respectively provided with a waist-shaped hole 2.2, the bottom part of the inner side of one of the blade holders 2 is provided with an assembly groove 2.3 which is communicated with the pushing rod groove 2.1 from front to back, the lower parts of the outer sides of the two blade holders 2 are respectively provided with a convex limiting guide step 2.4 matched with the limiting guide groove 1.9, and the middle parts of the outer sides are respectively provided with a convex rib 2.5. The bolt 8 is inserted from the bolt hole 1.5 on one side, passes through the two kidney-shaped holes 2.2 and then is connected with the bolt hole 1.5 on the other side.
As shown in connection with fig. 12-13, the linkage adjustment mechanism includes: a gear 4 in a gear groove 1.2, a central shaft 6 in a central shaft hole 1.3, a gear 4 inserted into the upper end of the central shaft 6, an adjusting screw rod or worm 5 in a screw rod hole 1.4, the adjusting screw rod or worm 5 meshed with the gear 4, and two symmetrical push rods 7 protruding out of the upper surface on the gear 4.
Example two: referring to fig. 8 and fig. 10-15, on the basis of the first embodiment, a pin hole 1.6 is formed in one side of the gear groove 1.2 at the bottom of the opening 1.1, a pin 9 is arranged in the pin hole 1.6, and the upper end of the pin 9 protrudes out of the bottom of the opening 1.1 and is located in the assembling groove 2.3. Wherein, the adjusting screw rod or the worm 5 is provided with an annular limiting groove 5.1, the cutter body 1 is provided with a limiting screw/rod hole 1.7 communicated with the screw rod hole 1.4, a limiting screw/rod 10 is arranged in the limiting screw/rod hole 1.7, and the end part of the limiting screw/rod 10 is positioned in the limiting groove 5.1. In addition, the cutter body 1 is provided with a compression screw hole 1.8 communicated with the central shaft hole 1.3, a compression screw 11 is arranged in the compression screw hole 1.8, and the inner end of the compression screw 11 is abutted against the central shaft 6. After the transfer, the limiting screw/rod hole 1.7 and the compression screw hole 1.8 can be plugged.
Example three: with reference to fig. 1-2 and fig. 6-7, on the basis of the first and second embodiments, a threaded connecting section 1.10 is provided at the bottom of the cutter body 1 for connecting the cutter handle 100, a Y-shaped internal cooling hole 1.11 is provided in the cutter body 1, the internal cooling hole 1.11 extends upward with the bottom surface of the connecting section 1.10 as an inlet, and two outlets are respectively located below the bolt holes 1.5.
The adjustment process of the above embodiment is: firstly, the bolt 8 is unscrewed, the cutter body 1 structures on two sides of the opening 1.1 are prevented from clamping the blade seat 2, the adjusting screw rod or the worm 5 is screwed to drive the gear 4 to rotate, the push rod 7 on the gear moves synchronously to push the two blade seats 2 to move inwards or outwards, and after the gear reaches a specified position, the bolt 8 is screwed.
The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and the present invention can be applied to similar products, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.
Claims (9)
1. Linkage type double-edge rough boring cutter comprises a cutter handle (100), a cutter body (1) and two blade seats (2) with blades (3), and is characterized in that: the middle upper part of the cutter body (1) is provided with a front-back opening (1.1), the middle of the bottom of the opening (1.1) is provided with a gear groove (1.2), the middle of the gear groove (1.2) is provided with a central shaft hole (1.3), the side edge of the cutter body (1) is provided with a transverse screw rod hole (1.4) communicated with the gear groove (1.2), and the cutter body (1) on the left side and the right side of the middle position of the opening (1.1) are symmetrically provided with bolt holes (1.5);
a gear (4) is arranged in the gear groove (1.2), a central shaft (6) with the upper end inserted into the gear (4) is arranged in the central shaft hole (1.3), an adjusting screw rod or a worm (5) meshed with the gear (4) is arranged in the screw rod hole (1.4), and two symmetrical push rods (7) protruding out of the upper surface are arranged on the gear (4);
two blade seats (2) are clamped in the opening (1.1), the bottom of each blade seat is provided with a left-right pushing rod groove (2.1), the middle position of each blade seat is provided with a waist-shaped hole (2.2), and bolts (8) are arranged in the two bolt holes (1.5) and the waist-shaped hole (2.2).
2. The ganged double-edged rough boring tool as set forth in claim 1, wherein: the lower part of an opening (1.1) of the cutter body (1) is provided with limiting guide grooves (1.9) which are concave towards two sides, and the lower parts of the outward sides of the two blade seats (2) are respectively provided with convex limiting guide steps (2.4).
3. The ganged double-edged rough boring tool as set forth in claim 2, wherein: the bottom of the inner side of one of the blade seats (2) is provided with an assembling groove (2.3) which is communicated with the pushing rod groove (2.1) from front to back.
4. The ganged double-edged rough boring tool as set forth in claim 3, wherein: a pin hole (1.6) is formed in one side of the gear groove (1.2) at the bottom of the opening (1.1), a pin (9) is arranged in the pin hole (1.6), and the upper end of the pin (9) protrudes out of the bottom of the opening (1.1) and is positioned in the assembling groove (2.3).
5. The ganged double-edged rough boring tool as set forth in claim 1, wherein: an annular limiting groove (5.1) is formed in the adjusting screw rod or the worm (5), a limiting screw/rod hole (1.7) communicated with the screw rod hole (1.4) is formed in the cutter body (1), and a limiting screw/rod (10) is arranged in the limiting screw/rod hole (1.7).
6. The ganged double-edged rough boring tool as set forth in claim 1, wherein: the cutter body (1) is provided with a compression screw hole (1.8) communicated with the central shaft hole (1.3), and a compression screw (11) is arranged in the compression screw hole (1.8).
7. The ganged double-edged rough boring tool as set forth in claim 1, wherein: the middle parts of the outward sides of the two blade seats (2) are respectively provided with a convex rib (2.5).
8. The ganged double-edged rough boring tool as set forth in any one of claims 1 to 7, wherein: the bottom of the cutter body (1) is provided with a connecting section (1.10) with threads.
9. The ganged double-edged rough boring tool as set forth in claim 8, wherein: the cutter body (1) is internally provided with a Y-shaped internal cooling hole (1.11), the internal cooling hole (1.11) extends upwards by taking the bottom surface of the connecting section (1.10) as an inlet, and two outlets are respectively positioned below the bolt holes (1.5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010845000.7A CN111842949A (en) | 2020-08-20 | 2020-08-20 | Linkage type double-edge rough boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010845000.7A CN111842949A (en) | 2020-08-20 | 2020-08-20 | Linkage type double-edge rough boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111842949A true CN111842949A (en) | 2020-10-30 |
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ID=72969588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010845000.7A Pending CN111842949A (en) | 2020-08-20 | 2020-08-20 | Linkage type double-edge rough boring cutter |
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| Country | Link |
|---|---|
| CN (1) | CN111842949A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210646A (en) * | 2021-06-01 | 2021-08-06 | 东莞刃峰数控刀具有限公司 | Fine-adjustment type rough boring cutter for rough machining and machining process thereof |
-
2020
- 2020-08-20 CN CN202010845000.7A patent/CN111842949A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210646A (en) * | 2021-06-01 | 2021-08-06 | 东莞刃峰数控刀具有限公司 | Fine-adjustment type rough boring cutter for rough machining and machining process thereof |
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