CN213437245U - Damping boring cutter bar for deep hole machining of lathe - Google Patents
Damping boring cutter bar for deep hole machining of lathe Download PDFInfo
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- CN213437245U CN213437245U CN202021399659.6U CN202021399659U CN213437245U CN 213437245 U CN213437245 U CN 213437245U CN 202021399659 U CN202021399659 U CN 202021399659U CN 213437245 U CN213437245 U CN 213437245U
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Abstract
The utility model relates to a lathe is damping boring cutter pole for BTA, including tool bit, blade locking mechanism and cutter arbor, the middle part of tool bit is equipped with the dashpot downwards, the tank bottom of dashpot is equipped with the installation screw hole downwards, the rear end of tool bit is provided with the locking sleeve outwards; the blade locking mechanism comprises a locking plate, the locking plate is locked on the cutter head, and a damping buffer spring and a cutter head damping sleeve are arranged between the locking plate and the buffer groove in a high-low extrusion mode; a blade limiting shaft is arranged at the front end of the locking plate downwards, a damping shaft is arranged at the rear side of the locking plate downwards, and a damping gasket is clamped on the damping shaft; the locking sleeve is fixedly connected into the mounting groove of the cutter bar, and a cutter head damping block is embedded in the locking sleeve. The utility model discloses can effectively realize the tool bit shock attenuation, and can realize the installation of blade shock attenuation to can effectively promote the shock attenuation effect by a wide margin and improve the machining precision.
Description
Technical Field
The utility model relates to a boring cutter arbor is used in lathe spot facing work specifically indicates a lathe deep hole processing is with damping boring cutter arbor.
Background
The boring cutter is one kind of hole machining cutter and is used mainly in inner hole machining, reaming, copying and other fields. The existing boring cutter bar generally adopts No. 45 steel for heat treatment as the material of the cutter bar, and adopts a solid structure to additionally install a cutter head. The boring cutter bar is easy to vibrate in the hole machining process, so that the problems of poor roughness of the machined surface and unstable size are caused, and the cutter point is easy to tip.
In order to reduce the vibration problem of the boring cutter bar in the machining process, the existing boring cutter bar, particularly the boring cutter bar for deep hole machining, is generally additionally provided with a damping block. The existing damping boring cutter bar for deep hole machining has the following obvious defects in the actual machining and application process: 1) most damping shock absorption blocks are arranged inside the cutter bar, and the part of the cutter head is lack of shock absorption arrangement, so that the shock absorption effect cannot meet the design requirement; 2) the installation of the blade is mostly in rigid connection, namely the blade is directly locked on the cutter head through a locking screw, and the installation of the blade does not have a damping design, so that the damping effect is difficult to further improve; 3) in order to facilitate the installation of the damping blocks, the boring cutter bar generally needs to be provided with corresponding damping block installation cavities, and in order to ensure the damping effect, the number of the damping blocks and the damping block installation cavities generally needs to be provided with a plurality of damping blocks, so that the overall rigidity of the boring cutter bar is relatively poor.
Therefore, the tool bit can be effectively damped, and the blade can be damped and mounted, so that the damping effect can be effectively and greatly improved, and the machining precision can be improved; and can effectively ensure that the cutter arbor has enough rigidity to effectively promote practical effect's lathe BTA is with damping boring cutter arbor the utility model discloses a research purpose.
Disclosure of Invention
Technical problem to above-mentioned prior art exists, the utility model provides a lathe is damping boring cutter arbor for BTA, this lathe is damping boring cutter arbor for BTA can effectively solve the technical problem that above-mentioned prior art exists.
The technical scheme of the utility model is that:
a damping boring cutter bar for deep hole processing of a lathe comprises a cutter head, a blade locking mechanism and a cutter bar,
the front end part of the cutter head is provided with a blade mounting groove, the middle part of the blade mounting groove is downwards provided with a guide hole, the middle part of the cutter head is downwards provided with a buffer groove, the bottom of the buffer groove is downwards provided with a mounting threaded hole, and the rear side of the cutter head is downwards provided with a containing hole; the rear end part of the tool bit is integrally formed and is outwards provided with a locking sleeve, the outer side wall of the locking sleeve is provided with external threads for locking, and the rear end part of the tool bit is transversely provided with a threaded hole for locking;
the blade locking mechanism comprises a locking plate, a locking hole is formed in the middle of the locking plate, the locking plate is locked to a mounting threaded hole of the cutter head after corresponding locking bolts penetrate through the locking hole, and a damping buffer spring and a cutter head damping sleeve are arranged between the locking plate and the buffer groove in a high-low extrusion mode; the front end part of the locking plate is integrally formed and is provided with a blade limiting shaft downwards, and the bottom of the blade limiting shaft extends into the guide hole; the rear side of the locking plate is integrally formed and is provided with a damping shaft downwards, one end of the damping shaft, which is not connected with the locking plate, extends into the accommodating hole, and at least one damping washer is clamped on the damping shaft;
the front end part of the cutter bar is provided with a mounting groove, the locking sleeve is fixedly connected into the mounting groove in a threaded connection mode, corresponding fixing holes are formed in the axis position of the cutter bar in a multi-stage step shape, a fixing shaft matched with the fixing shaft in shape is assembled in each fixing hole, and corresponding cutter bar damping sleeves are respectively assembled between the step surface of each fixing shaft and the step surface of each fixing hole;
the locking sleeve is internally embedded with a tool bit damping block, a communicating hole is formed in the center of the tool bit damping block, and the front end of the fixing shaft penetrates through the communicating hole and then is fixedly connected into the threaded hole for locking the tool bit in a threaded connection mode.
And a platform for installation is arranged on the outer surface of one end of the cutter bar, which is not provided with the cutter head.
And the bolt head of the locking bolt is provided with a hexagon socket groove for screwing the locking bolt.
The rear end part of the fixed shaft is provided with a hexagon socket groove for screwing the fixed shaft.
The axis position of the cutter bar is provided with corresponding fixing holes in a three-stage step shape.
And two damping washers are clamped on the damping shaft.
The utility model has the advantages that:
1) the utility model discloses a cutter arbor front end portion is equipped with the mounting groove, and the tool bit realizes being connected with the installation of cutter arbor through the mounting groove cooperation of locking sleeve and cutter arbor, on this basis, the utility model discloses inlay in the locking sleeve and be equipped with tool bit damping piece, under the effect of tool bit damping piece, effectively realize the tool bit shock attenuation;
the utility model discloses a blade locking mechanism contains the locking plate, and the locking plate locking is installed on the tool bit, realizes the blade location installation through the spacing axle of blade that the locking plate front end portion was equipped with, and the shock attenuation installation of blade is effectively realized through the setting of shock attenuation buffer spring and tool bit damping cover to through the setting of the epaxial shock attenuation damping packing ring of shock attenuation, further effectively promote the effect of blade shock attenuation installation;
thereby under the effect of tool bit shock attenuation and blade shock attenuation installation, effectively promote the shock attenuation effect by a wide margin, and then effectively improve the machining precision.
2) The utility model discloses a become multistage step form on the cutter arbor axle center position and be provided with corresponding fixed orifices, be equipped with a shape and its matched with fixed axle in the fixed orifices, be equipped with corresponding cutter arbor shock attenuation damping cover between the step face of fixed axle and the step face of fixed orifices respectively. Through the setting of cutter arbor shock attenuation damping cover, can effectively realize the cutter arbor shock attenuation, and through the setting of fixed axle, can effectively further form the support to the tool bit with the cooperation of cutter arbor, can effectively ensure that the cutter arbor has sufficient rigidity on cutter arbor absorbing basis, thereby effectively promote the utility model discloses a practical function.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a schematic view of the structure of the cutter head.
Fig. 4 is a schematic view of the blade locking mechanism mounted on the cutter head.
Detailed Description
To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail with reference to the following examples:
referring to fig. 1-4, the damping boring cutter bar for deep hole machining of the lathe comprises a cutter head 1, a blade locking mechanism 2 and a cutter bar 3, wherein a blade mounting groove 4 is formed in the front end of the cutter head 1, a guide hole 5 is formed in the middle of the blade mounting groove 4 in a downward direction, a buffer groove 6 is formed in the middle of the cutter head 1 in a downward direction, a mounting threaded hole 7 is formed in the bottom of the buffer groove 6 in a downward direction, and a receiving hole 8 is formed in the rear side of the cutter head 1 in a downward direction; the rear end part of the tool bit 1 is integrally formed and is outwards provided with a locking sleeve 9, the outer side wall of the locking sleeve 9 is provided with an external thread for locking, and the rear end part of the tool bit 1 is transversely provided with a threaded hole 10 for locking;
the blade locking mechanism 2 comprises a locking plate 201, a locking hole is formed in the middle of the locking plate 201, the locking plate 201 is locked to the mounting threaded hole 7 of the cutter head 1 after corresponding locking bolts 202 penetrate through the locking hole, and a damping buffer spring 11 and a cutter head damping sleeve 12 are arranged between the locking plate 201 and the buffer groove 6 in a high-low extrusion mode; the front end part of the locking plate 201 is integrally formed and provided with a blade limiting shaft 203 downwards, and the bottom of the blade limiting shaft 203 extends into the guide hole 5; a shock absorption shaft 204 is integrally formed at the rear side of the locking plate 201 and downwards arranged, one end of the shock absorption shaft 204, which is not connected with the locking plate 201, extends into the accommodating hole 8, and two shock absorption damping washers 13 are clamped on the shock absorption shaft 204;
the front end part of the cutter bar 3 is provided with a mounting groove, the locking sleeve 9 is fixedly connected into the mounting groove in a threaded connection mode, corresponding fixing holes are formed in the axis position of the cutter bar 3 in a three-stage step shape, a fixing shaft 14 matched with the fixing shaft in shape is assembled in each fixing hole, and corresponding cutter bar damping sleeves 15 are respectively assembled between the step surface of each fixing shaft 14 and the step surface of each fixing hole;
a tool bit damping block 16 is embedded in the locking sleeve 9, a communicating hole is formed in the center of the tool bit damping block 16, and the front end of the fixing shaft 14 penetrates through the communicating hole and then is fixedly connected into the locking threaded hole 10 of the tool bit 1 in a threaded connection mode.
And a platform 17 for installation is arranged on the outer surface of one end of the cutter bar 3, which is not provided with the cutter head 1.
The bolt head of the locking bolt 202 is provided with a hexagon socket 18 for tightening the locking bolt.
The rear end of the fixed shaft 14 is provided with a hexagonal socket 19 for screwing the fixed shaft.
The utility model can effectively and greatly improve the damping effect under the action of the damping of the tool bit and the damping of the blade, thereby effectively improving the processing precision; then through the setting of cutter arbor shock attenuation damping cover 15, can effectively realize the cutter arbor shock attenuation to through the setting of fixed axle 14, effectively further form the support to tool bit 1 with the cooperation of cutter arbor 3, thereby can effectively ensure that cutter arbor 3 has enough rigidity on the basis of cutter arbor shock attenuation.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a lathe BTA is with damping boring cutter arbor, includes tool bit (1), blade locking mechanism (2) and cutter arbor (3), its characterized in that:
a blade mounting groove (4) is formed in the front end of the cutter head (1), a guide hole (5) is formed in the middle of the blade mounting groove (4) downwards, a buffer groove (6) is formed in the middle of the cutter head (1) downwards, a mounting threaded hole (7) is formed in the bottom of the buffer groove (6) downwards, and a containing hole (8) is formed in the rear side of the cutter head (1) downwards; the rear end part of the tool bit (1) is integrally formed and is outwards provided with a locking sleeve (9), the outer side wall of the locking sleeve (9) is provided with an external thread for locking, and the rear end part of the tool bit (1) is transversely provided with a threaded hole (10) for locking;
the blade locking mechanism (2) comprises a locking plate (201), a locking hole is formed in the middle of the locking plate (201), the locking plate (201) is locked to a mounting threaded hole (7) of the cutter head (1) after a corresponding locking bolt (202) penetrates through the locking hole, and a damping buffer spring (11) and a cutter head damping sleeve (12) are arranged between the locking plate (201) and the buffer groove (6) in a high-low extrusion mode; the front end part of the locking plate (201) is integrally formed and is provided with a blade limiting shaft (203) downwards, and the bottom of the blade limiting shaft (203) extends into the guide hole (5); a damping shaft (204) is integrally formed at the rear side of the locking plate (201) and downwards, one end, which is not connected with the locking plate (201), of the damping shaft (204) extends into the accommodating hole (8), and at least one damping washer (13) is clamped on the damping shaft (204);
the front end part of the cutter bar (3) is provided with a mounting groove, the locking sleeve (9) is fixedly connected into the mounting groove in a threaded connection mode, the axis position of the cutter bar (3) is provided with corresponding fixing holes in a multi-stage step shape, a fixing shaft (14) matched with the fixing shaft in shape is assembled in the fixing hole, and corresponding cutter bar damping sleeves (15) are respectively assembled between the step surface of the fixing shaft (14) and the step surface of the fixing hole;
a tool bit damping block (16) is embedded in the locking sleeve (9), a communicating hole is formed in the center of the tool bit damping block (16), and the front end of the fixing shaft (14) penetrates through the communicating hole and then is fixedly connected into a locking threaded hole (10) of the tool bit (1) in a threaded connection mode.
2. The damping boring cutter bar for deep hole machining of the lathe as claimed in claim 1, wherein: and a platform (17) for installation is arranged on the outer surface of one end of the cutter bar (3) which is not provided with the cutter head (1).
3. The damping boring cutter bar for deep hole machining of the lathe as claimed in claim 1, wherein: the bolt head of the locking bolt (202) is provided with an inner hexagonal groove (18) for screwing the locking bolt.
4. The damping boring cutter bar for deep hole machining of the lathe as claimed in claim 1, wherein: the rear end part of the fixed shaft (14) is provided with a hexagon socket (19) for screwing the fixed shaft.
5. The damping boring cutter bar for deep hole machining of the lathe as claimed in claim 1, wherein: the axis position of the cutter bar (3) is provided with corresponding fixing holes in a three-stage step shape.
6. The damping boring cutter bar for deep hole machining of the lathe as claimed in claim 1, wherein: two damping washers (13) are clamped on the damping shaft (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021399659.6U CN213437245U (en) | 2020-07-16 | 2020-07-16 | Damping boring cutter bar for deep hole machining of lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021399659.6U CN213437245U (en) | 2020-07-16 | 2020-07-16 | Damping boring cutter bar for deep hole machining of lathe |
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| Publication Number | Publication Date |
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| CN213437245U true CN213437245U (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021399659.6U Active CN213437245U (en) | 2020-07-16 | 2020-07-16 | Damping boring cutter bar for deep hole machining of lathe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732328A (en) * | 2021-09-18 | 2021-12-03 | 华东交通大学 | Tool bit and cutter arbor combined vibration reduction inner-cooling type lathe tool |
-
2020
- 2020-07-16 CN CN202021399659.6U patent/CN213437245U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732328A (en) * | 2021-09-18 | 2021-12-03 | 华东交通大学 | Tool bit and cutter arbor combined vibration reduction inner-cooling type lathe tool |
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