CN111266612A - Coarse-fine dual-mode adjustable boring cutter and using method thereof - Google Patents
Coarse-fine dual-mode adjustable boring cutter and using method thereof Download PDFInfo
- Publication number
- CN111266612A CN111266612A CN202010200497.7A CN202010200497A CN111266612A CN 111266612 A CN111266612 A CN 111266612A CN 202010200497 A CN202010200497 A CN 202010200497A CN 111266612 A CN111266612 A CN 111266612A
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- cutter
- block
- sliding
- external thread
- driving
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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
-
- 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
Abstract
The invention relates to a machining tool, in particular to a rough and fine dual-mode adjustable boring cutter and a using method thereof. The rough and fine dual-mode adjustable boring cutter comprises a cutter holder and more than one cutter block, wherein a cutter handle connector is fixedly connected below the cutter holder, and a cutter blade is fixedly connected to each cutter block, and the rough and fine dual-mode adjustable boring cutter is different from the prior art in that: each knife block can change the relative position of the knife block and the knife seat along the sliding direction of the sliding chute roughly or finely. Compared with the prior art, the invention can be used for processing large cutting amount in rough machining occasions and can also be used for realizing high-precision and high-surface roughness processing in finish machining occasions, thereby reducing the quantity of goods of the cutter, reducing the production cost, and having simple structure and convenient use.
Description
Technical Field
The invention relates to a machining tool, in particular to a rough and fine dual-mode adjustable boring cutter and a using method thereof.
Background
The adjustable boring cutter is a boring cutter which can adjust the processing size of the cutter, improve the application range of the cutter and reduce the processing cost of a factory. Currently, widely used adjustable boring cutters are of two types: one type is a rough adjustment boring cutter adjusted through a single thread, and the cutter has good rigidity, but the diameter of the cutter is difficult to adjust, and the adjustment precision of the cutter is poor. The other type is a fine adjustment boring cutter, and the cutter has poor rigidity, small adjustment range and good machining precision. In the prior art, the adjusting range of a rough boring cutter is large, and the adjusting range of a fine boring cutter is small.
At present, a double-mode adjustable cutter with better rigidity does not exist, and a rough adjustment mode is adopted to be suitable for large-range adjustment of the cutter in the rough machining process and can also be used for micron-level fine adjustment.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and discloses a novel adjustable boring cutter which can be used for machining with large cutting quantity in rough machining occasions and can also be used for machining with high precision and high surface roughness in finish machining occasions, so that the quantity of goods of the cutter is reduced, and the production cost is reduced. In order to realize the purpose, the invention adopts the technical scheme that:
the utility model provides a thick smart bimodulus adjustable boring cutter, includes blade holder, more than one sword piece, blade holder below rigid coupling handle of a knife connector, every a blade of rigid coupling on the sword piece, its characterized in that: each knife block can change the relative position of the knife block and the knife seat along the sliding direction of the sliding chute roughly or finely.
Furthermore, an axially horizontal tool apron positioning sliding key is machined on the top surface of the tool apron, an axially horizontal tool block positioning sliding key is machined on the bottom surface of each tool block, and the tool apron positioning sliding key is in sliding fit with the tool block positioning sliding key;
more than two cutter holder sliding grooves and cutter holder screw holes are axially formed in the top surface of the cutter holder, more than two sliding block sliding grooves are radially formed in the side surface of the cutter holder, the sliding block sliding grooves are divided into three sections, namely a large section, a middle section and a small section from outside to inside according to the hole diameter, and the small sections of the sliding block sliding grooves are communicated with the corresponding cutter holder sliding grooves;
each cutter block is provided with a cutter block sliding groove penetrating through the top and bottom surfaces, and an end gap eliminating screw penetrates through the cutter block sliding groove and is in threaded connection with the cutter seat screw hole respectively; the bottom surface of each cutter block is fixedly connected with a positioning pin, and the lower end of each positioning pin penetrates through the cutter holder sliding groove to enter the corresponding sliding block sliding groove;
a positioning ring is fixedly connected to the large section of the sliding block chute through a positioning ring screw, an adjusting nut is in clearance fit in the positioning ring, the adjusting nut is in a nail shape, an adjusting nut driving hole is formed in the outer end of a nail head, a driving key is fixedly arranged at the inner end of the nail head, an annular recess is formed in the inner end of the nail rod, an embedded groove is formed in the free end of the nail rod, an elastic element and a gasket are installed in the annular recess, a friction gasket is sleeved after the nail rod penetrates through the elastic element and the gasket and an inner hole of the positioning ring, a check ring is embedded in the embedded groove, and the elastic; the gasket is provided with a driving groove, the driving key is matched with the driving groove to drive the gasket to rotate along with the adjusting nut, and the driving key can slide in the driving groove along the axial direction of the adjusting nut;
the adjusting stud comprises an external thread A and an external thread B, a stud driving hole is formed in the outer end part of the adjusting stud, the pitch of the external thread A is not equal to that of the external thread B, the turning directions are opposite, the external thread A is in threaded connection with the internal thread of the center hole of the adjusting nut, and the external thread B is in threaded connection with the internal thread of the sliding block;
the sliding block is positioned in the small section of the sliding groove of the sliding block and is fixedly connected with the lower end of the positioning pin.
Furthermore, more than one hole is formed in the screw pressing surface of the end gap eliminating screw, a spring is installed in the hole, a ball is installed in the hole below the spring, the ball extends out of the screw pressing surface in a free state, and the spring has pre-elasticity.
Further, the pitch of the external thread a is greater than the pitch of the external thread B.
Further, the pitch of the external thread a is smaller than the pitch of the external thread B.
The invention also discloses a using method of the rough and fine dual-mode adjustable boring cutter,
during fine adjustment, a tool is used for driving the adjusting stud to rotate at the stud driving hole, and when the adjusting stud rotates for one circle, the actual movement distance of the cutter block relative to the cutter holder is the distance of subtracting one pitch of the external thread A from one pitch of the external thread B, so that micron-scale adjustment of the diameter adjustment of the boring cutter is realized;
during rough adjustment, a tool is used for driving the adjusting nut and the adjusting stud to rotate while pressing the adjusting nut internally, and the movement distance of the cutter block relative to the cutter holder is one thread pitch of the external thread B every time the cutter block rotates one circle.
Compared with the prior art, the invention can be used for processing large cutting amount in rough machining occasions and can also be used for realizing high-precision and high-surface roughness processing in finish machining occasions, thereby reducing the quantity of goods of the cutter, reducing the production cost, and having simple structure and convenient use.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is an exploded view of the components of fig. 1, with only one of the blocks separated.
Fig. 3 is a longitudinal sectional view of fig. 1.
Fig. 4 is a partially enlarged view of fig. 3.
Fig. 5 is a schematic structural view of an endplay elimination member in embodiment 1 of the present invention.
Wherein: 1. the tool rest comprises, by weight, 1-1 parts of a tool rest positioning sliding key, 1-2 parts of a tool rest sliding groove, 1-3 parts of a tool rest screw hole, 1-4 parts of a sliding block sliding groove, 2 parts of a tool block, 2-1 parts of a tool block positioning sliding key, 2-2 parts of a tool block sliding groove, 2-3 parts of a tool block pressing surface, 2-4 parts of a tool block pressing surface, 3 parts of a positioning groove, a blade, 4 parts of an end gap eliminating screw, 4-1 parts of a spring, 4-2 parts of a ball, 4-3 parts of a screw pressing surface, 5 parts of a blade screw, 6 parts of an adjusting stud, 6-1 parts of external threads A, 6-2 parts of external threads B, 6-3 parts of a stud driving hole, 7 parts of an adjusting nut, 7-1 parts of a driving key, 7-2 parts of a caulking groove, 7-3 parts, The tool comprises a positioning ring screw 11, a positioning ring 11-1, friction surfaces A and 12, a sliding block 13, a friction gasket 13-1, friction surfaces B and 14, a retainer ring 15, a tool shank connector 16 and a positioning pin.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
the top surface of the tool apron 1 is provided with an axially horizontal tool apron positioning sliding key 1-1, the bottom surface of each tool block 2 is provided with an axially horizontal tool block positioning sliding key 2-1, and the tool apron positioning sliding key 1-1 is in sliding fit with the tool block positioning sliding key 2-1;
more than two tool apron chutes 1-2 and tool apron screw holes 1-3 are axially arranged on the top surface of the tool apron 1, more than two slide block chutes 1-4 are radially arranged on the side surface of the tool apron 1, the slide block chutes 1-4 are divided into three sections, namely a large section, a middle section and a small section, from outside to inside according to the hole diameter, and the small sections of the slide block chutes 1-4 are communicated with the corresponding tool apron chutes 1-2;
each cutter block 2 is provided with a cutter block sliding groove 2-2 penetrating through the top and bottom surfaces, and an end gap eliminating screw 4 penetrates through the cutter block sliding groove 2-2 to be in threaded connection with the cutter seat screw hole 1-3 respectively; the bottom surface of each cutter block 2 is fixedly connected with a positioning pin 16, and the lower end of each positioning pin 16 penetrates through the cutter holder sliding groove 1-2 to enter the corresponding sliding block sliding groove 1-4;
a positioning ring 11 is fixedly connected in the large section of the sliding block chute 1-4 through a positioning ring screw 10, an adjusting nut 7 is in clearance fit in the positioning ring 11, the adjusting nut 7 is in a nail shape, an adjusting nut driving hole 7-3 is formed in the outer end of a nail head, a driving key 7-1 is fixedly arranged at the inner end of the nail head and provided with an annular recess, an embedded groove 7-2 is formed in the free end of a nail rod, an elastic element 8 and a gasket 9 are installed in the annular recess, the nail rod penetrates through the elastic element 8, the gasket 9 and the inner hole of the positioning ring 11 and then is sleeved with a friction gasket 13, a check ring 14 is embedded in the embedded groove 7-2, and the elastic force of the elastic element 8 forces a friction surface A11-1; the gasket 9 is provided with a driving groove 9-1, the driving key 7-1 is matched with the driving groove 9-1 to drive the gasket 9 to rotate along with the adjusting nut 7, and the driving key 7-1 can slide along the axial direction of the adjusting nut 7 in the driving groove 9-1;
the adjusting stud 6 comprises an external thread A6-1 and an external thread B6-2, a stud driving hole 6-3 is formed in the outer end of the adjusting stud, the pitch of the external thread A6-1 is larger than that of the external thread B6-2, the screwing directions are opposite, the external thread A6-1 is in threaded fit with an internal thread of a center hole of the adjusting nut 7, and the external thread B6-2 is in threaded fit with an internal thread of the sliding block 12;
the slide block 12 is positioned in a small section of the slide block sliding groove 1-4 and is fixedly connected with the lower end of the positioning pin 16.
During fine adjustment, the adjusting stud 6 is driven to rotate by a tool at the stud driving hole 6-3, at the moment, the friction surface A11-1 and the friction surface B13-1 are attached to each other under the pre-elasticity action of the elastic element 8, and the adjusting nut 7 is used for fixing relative to the tool apron 1. And each time the adjusting stud 6 rotates for one circle, the adjusting stud 6 moves one pitch of the external thread A relative to the adjusting nut 7, namely the tool apron, and the slide block 12 drives the positioning pin 16 and the tool block 2 to move one pitch of the external thread B in the opposite direction. The actual distance of movement of the insert 2 relative to the holder 1 is now one pitch of the external thread a minus one pitch of the external thread B. The micron-scale adjustment of the diameter adjustment of the boring cutter is realized by reasonably setting the numerical values of the thread pitch A and the thread pitch B. Due to the pre-elastic force of the elastic element 8, the axial thread fit clearance of the external thread A6-1 and the external thread B6-2 during the fit process is eliminated. Continuity of size adjustment is achieved.
During rough adjustment, the adjusting nut 7 is pressed by a tool to separate the friction surface A11-1 from the friction surface B13-1. At the moment, the adjusting nut 7 and the tool apron 1 are released from the relative fixed state, and the rotation around the assembling axis of the adjusting stud 6 can be realized. When the tool is used for driving the adjusting nut 7 and the adjusting stud 6 to rotate while pressing inwards, only the thread pair of the external thread B6-2 and the sliding block 12 plays a transmission role. The slide block 12 drives the positioning pin 16 and the knife block 2 to move relative to the knife holder 1 by a pitch of the external thread B6-2 every time the slide block rotates one circle.
The tool holder 1 and the tool block 2 are pressed tightly using bolts. When the common bolt is used for pressing, after the bolt is loosened, in the adjusting process, a gap is generated between the cutter holder positioning key 1-1 and the cutter block positioning key 2-1 after the cutter holder 1 and the cutter block 2 move at the relative positions. This gap has various configurations. After the bolt is compressed again, after the gap between the bolt and the cutter disappears, the actual size of the cutter is larger or smaller than the size which is not compressed after adjustment.
The invention arranges more than one group of holes on the flange surface of the end clearance eliminating screw 4, namely the screw pressing surface 4-3, a spring 4-1 is arranged in the hole, and a ball 4-2 is arranged below the spring and points to the direction of the thread. In a free state, the ball 4-2 extends out of the flange surface, and the spring 4-1 has pre-elasticity.
When the fixed cutter block 2 needs to be pressed and fixed, the end gap eliminating screw 4 is rotated, so that the cutter block pressing surface 2-3 presses the ball 4-2, the spring 4-1 contracts under the pressure of the ball, and the ball 4-2 retracts into the hole. The screw pressing surface 4-3 is tightly attached to the knife block pressing surface 2-3.
When the position of the cutter block 2 needs to be adjusted, the end clearance eliminating screw 4 is properly loosened. The knife block pressing surface 2-3 is separated from the screw pressing surface 4-3, the ball 4-2 is always in contact with the knife block pressing surface 2-3 under the action of elastic force and has certain pre-pressure, and the pressure is provided by the spring 4-1.
During the adjustment process of the cutter block 2, pre-pressure exists all the time, and the contact gap between the cutter block positioning key 2-1 and the cutter seat positioning key 1-1 is eliminated. After the adjustment is finished and the pressing is carried out again, the position of the cutter block is unchanged.
The foregoing is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; those skilled in the art can make many possible variations or modifications to the invention using the methods and techniques disclosed above, or to modify equivalent embodiments without departing from the scope of the invention. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention.
Claims (6)
1. The utility model provides a thick smart bimodulus adjustable boring cutter, includes blade holder (1), more than one sword piece (2), blade holder (1) below rigid coupling handle of a knife connector (15), every blade (3) of rigid coupling on sword piece (2), its characterized in that: each knife block (2) can change the relative position of the knife block and the knife holder (1) along the sliding direction of the sliding chute roughly or finely.
2. The roughing-finishing dual-mode adjustable boring cutter as claimed in claim 1, wherein: the top surface of the tool apron (1) is provided with an axially horizontal tool apron positioning sliding key (1-1), the bottom surface of each tool block (2) is provided with an axially horizontal tool block positioning sliding key (2-1), and the tool apron positioning sliding key (1-1) is in sliding fit with the tool block positioning sliding key (2-1);
more than two cutter holder sliding grooves (1-2) and cutter holder screw holes (1-3) are axially formed in the top surface of the cutter holder (1), more than two sliding block sliding grooves (1-4) are radially formed in the side surface of the cutter holder (1), the sliding block sliding grooves (1-4) are divided into three sections, namely a large section, a middle section and a small section, from the outside to the inside according to the hole diameter, and the small sections of the sliding block sliding grooves (1-4) are communicated with the corresponding cutter holder sliding grooves (1-2);
each cutter block (2) is provided with a cutter block sliding groove (2-2) penetrating through the top and bottom surfaces, and an end gap eliminating screw (4) penetrates through the cutter block sliding groove (2-2) to be respectively in threaded connection with the cutter seat screw hole (1-3); the bottom surface of each cutter block (2) is fixedly connected with a positioning pin (16), and the lower end of each positioning pin (16) penetrates through the cutter seat sliding groove (1-2) to enter the corresponding sliding block sliding groove (1-4);
a positioning ring (11) is fixedly connected to the large section of the sliding block chute (1-4) through a positioning ring screw (10), an adjusting nut (7) is in clearance fit in the positioning ring (11), the adjusting nut (7) is in a nail shape, an adjusting nut driving hole (7-3) is formed in the outer end of a nail head, a driving key (7-1) is fixedly arranged at the inner end of the nail head, an annular recess is formed in the inner end of the nail head, a caulking groove (7-2) is formed in the free end of a nail rod, an elastic element (8) and a gasket (9) are installed in the annular recess, the nail rod penetrates through the elastic element (8), the gasket (9) and the inner hole of the positioning ring (11) and then is sleeved with a friction gasket (13), a check ring (14) is embedded in the caulking groove (7-2), and the elastic force of the elastic element (8) forces; a driving groove (9-1) is formed in the gasket (9), the driving key (7-1) is matched with the driving groove (9-1) to drive the gasket (9) to rotate along with the adjusting nut (7), and the driving key (7-1) can slide in the driving groove (9-1) along the axial direction of the adjusting nut (7);
the adjusting stud (6) comprises an external thread A (6-1) and an external thread B (6-2), a stud driving hole (6-3) is formed in the outer end part of the adjusting stud, the pitch of the external thread A (6-1) is not equal to that of the external thread B (6-2) and the rotating direction is opposite, the external thread A (6-1) is in threaded fit with an internal thread of a central hole of the adjusting nut (7), and the external thread B (6-2) is in threaded fit with an internal thread of the sliding block (12);
the sliding block (12) is positioned in a small section of the sliding block sliding groove (1-4) and is fixedly connected with the lower end of the positioning pin (16).
3. The roughing-finishing dual-mode adjustable boring cutter as claimed in claim 2, wherein: more than one hole is formed in a screw pressing surface (4-3) of the end gap eliminating screw (4), a spring (4-1) is installed in the hole, a ball (4-2) is installed in the hole below the spring (4-1), the ball (4-2) extends out of the screw pressing surface (4-3) in a free state, and the spring (4-1) has pre-elasticity.
4. The roughing-finishing dual-mode adjustable boring cutter as claimed in claim 2, wherein: the thread pitch of the external thread A is larger than that of the external thread B.
5. The roughing-finishing dual-mode adjustable boring cutter as claimed in claim 2, wherein: the thread pitch of the external thread A is smaller than that of the external thread B.
6. The use method of the rough and fine dual-mode adjustable boring tool as claimed in any one of claims 2 to 5, wherein:
during fine adjustment, a tool is used for driving the adjusting stud (6) to rotate at the stud driving hole (6-3), and when the adjusting stud (6) rotates for one circle, the actual movement distance of the cutter block (2) relative to the cutter holder (1) is the distance of subtracting one pitch of the external thread B from one pitch of the external thread A, so that the micron-scale adjustment of the diameter adjustment of the boring cutter is realized;
during rough adjustment, a tool is used for driving the adjusting nut (7) and the adjusting stud (6) to rotate while pressing the adjusting nut (7) internally, and the moving distance of the cutter block (2) relative to the cutter holder (1) is one thread pitch of the external thread B (6-2) every time the adjusting nut (7) and the adjusting stud (6) rotate for one circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010200497.7A CN111266612A (en) | 2020-03-20 | 2020-03-20 | Coarse-fine dual-mode adjustable boring cutter and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010200497.7A CN111266612A (en) | 2020-03-20 | 2020-03-20 | Coarse-fine dual-mode adjustable boring cutter and using method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111266612A true CN111266612A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010200497.7A Pending CN111266612A (en) | 2020-03-20 | 2020-03-20 | Coarse-fine dual-mode adjustable boring cutter and using method thereof |
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| CN (1) | CN111266612A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114012119A (en) * | 2021-11-24 | 2022-02-08 | 嘉兴永佳精密机械制造有限公司 | Linkage adjusting double-edge boring head cutter |
| CN116037975A (en) * | 2022-09-08 | 2023-05-02 | 松德刀具（长兴）科技有限公司 | High-precision double-blade bridge type superhard boring cutter |
-
2020
- 2020-03-20 CN CN202010200497.7A patent/CN111266612A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114012119A (en) * | 2021-11-24 | 2022-02-08 | 嘉兴永佳精密机械制造有限公司 | Linkage adjusting double-edge boring head cutter |
| CN116037975A (en) * | 2022-09-08 | 2023-05-02 | 松德刀具（长兴）科技有限公司 | High-precision double-blade bridge type superhard boring cutter |
| CN116037975B (en) * | 2022-09-08 | 2023-08-11 | 松德刀具（长兴）科技有限公司 | High-precision double-blade bridge type superhard boring cutter |
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Effective date of registration: 20220124 Address after: 264006 No. 356-8, Changjiang Road, Yantai Economic and Technological Development Zone, Shandong Province Applicant after: Yantai Aidi Ruineng superhard cutting tool Co.,Ltd. Address before: 264006 No.356 Changjiang Road, Yantai Development Zone, Shandong Province Applicant before: YANTAI EDDIE PRECISION MACHINERY Co.,Ltd. |
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