CN116037975A - High-precision double-blade bridge type superhard boring cutter - Google Patents
High-precision double-blade bridge type superhard boring cutter Download PDFInfo
- Publication number
- CN116037975A CN116037975A CN202211093738.8A CN202211093738A CN116037975A CN 116037975 A CN116037975 A CN 116037975A CN 202211093738 A CN202211093738 A CN 202211093738A CN 116037975 A CN116037975 A CN 116037975A
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- cutter
- bridge
- longitudinal
- boring
- superhard
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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
-
- 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
- B23B29/24—Tool holders for a plurality of cutting tools, e.g. turrets
- B23B29/26—Tool holders in fixed position
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
A high-precision double-blade bridge type superhard boring cutter comprises a cutter bridge, two sliding blocks arranged on the cutter bridge, a cutter holder, a long hole arranged on the cutter holder and a fastening screw arranged in the long hole, wherein a boring blade is arranged on the cutter holder; the cutter bridge comprises a cutter bridge body, a sliding block, a cutter bridge, a longitudinal long groove arranged on the cutter bridge body, a longitudinal key arranged on the sliding block and matched with the longitudinal long groove, and a transverse position adjusting mechanism for adjusting and limiting the transverse positions of the sliding block and the cutter bridge body; the length of the longitudinal key is smaller than the length of the longitudinal slot. After long-time use, the utility model has the advantages of good stability, high precision and high working efficiency, and the service life of the cutter is prolonged.
Description
Technical Field
The utility model relates to the technical field of boring cutters, in particular to a high-precision double-blade bridge type superhard boring cutter.
Background
The boring cutter is one of boring cutters and is used for rough machining, semi-finishing or finish machining of the existing hole, and the most common occasions are boring cutter inner hole machining, reaming, profiling and the like. The boring cutter has the main function of improving the working efficiency and is used for removing the metal allowance of a workpiece during reaming. Because the double-edge bridge boring cutter has two cutting edges which participate in cutting simultaneously in the processing process, compared with the integrated single-edge boring cutter, the double-edge bridge boring cutter has the advantages of higher cutting efficiency, mutual cancellation of radial forces acting on the two symmetrical cutting edges, difficult vibration of a boring bar and the like.
For example, the chinese patent No. CN2013200815728 discloses a double-edged bridge type rough boring cutter, which has problems of poor stability, low precision, low working efficiency and the like after a period of working, and is difficult to meet the processing requirement.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the high-precision double-edge bridge type superhard boring cutter which has good stability, high precision and high working efficiency after long-time use and prolongs the service life of the cutter.
The technical aim of the utility model is realized by the following technical scheme: the high-precision double-blade bridge type superhard boring cutter comprises a cutter bridge, two sliding blocks arranged on the cutter bridge, a cutter holder, a long hole arranged on the cutter holder and a fastening screw arranged in the long hole, wherein a boring blade is arranged on the cutter holder; the cutter bridge comprises a cutter bridge body, a sliding block, a cutter bridge, a longitudinal long groove arranged on the cutter bridge body, a longitudinal key arranged on the sliding block and matched with the longitudinal long groove, and a transverse position adjusting mechanism for adjusting and limiting the transverse positions of the sliding block and the cutter bridge body; the length of the longitudinal key is smaller than the length of the longitudinal slot.
As a further preferable technical scheme of the utility model; the transverse position adjusting mechanism comprises at least two transverse key grooves arranged on the cutter bridge, and one transverse key arranged on the sliding block and matched with the transverse key grooves.
As a further preferable technical scheme of the utility model; at least two transverse key grooves arranged on the cutter bridge are arranged along the length direction of the longitudinal long groove.
As a further preferable technical scheme of the utility model; the transverse key groove and the longitudinal long groove form an included angle of 90 degrees.
As a further preferable technical scheme of the utility model; the two longitudinal long grooves are arranged in a staggered mode.
As a further preferable technical scheme of the utility model; the surface of the sliding block, which is contacted with the tool apron, is provided with a plurality of longitudinal anti-slip grooves, and the extending direction of the longitudinal anti-slip grooves is the same as that of the longitudinal long grooves.
In summary, the utility model has the following beneficial effects:
the utility model has the advantages of good stability, high precision and high working efficiency after long-time use, and prolongs the service life of the cutter.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present utility model;
FIG. 2 is an exploded view of structural example 1 of the present utility model;
FIG. 3 is a schematic view of a longitudinal slot and a longitudinal key connection in embodiment 1 of the present utility model;
FIG. 4 is a schematic structural diagram of embodiment 2 of the present utility model;
FIG. 5 is a schematic view of a striking mechanism according to embodiment 2 of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Embodiment one:
In production practice, the applicant found that the prior double-edged bridge type adjustable rough boring cutter, namely, the fixation of the cutter holder and the cutter bridge is simply realized through screws, and the use of the structure is greatly limited because the position of the cutter holder cannot be adjusted, so that the structure capable of adjusting the position of the cutter holder is realized, and the structure realizes the adjustment of the position of the cutter holder through the arrangement of a sliding rail connection between a sliding block and the cutter bridge, and finally realizes the position adjustment of the boring cutter (see the patent of the utility model filed by the applicant in the prior application for details: ZL 2013200815728), but in the course of use, it has been found that the accuracy of the machining is reduced considerably after a certain period of use, especially when the machining is performed with high accuracy, which seriously affects the normal operation of the whole production machining, and after repeated studies, it has been found that the reduction in the machining accuracy is not caused by the components such as the boring blade and the electrical control system, which are problematic in the stability of the tool holder, and further studies have been found that the slider and the tool holder are in a sliding rail fit structure and then fixed by the bolts, which are disposed in the waist-shaped holes, and when the whole boring tool is operated, the forces inevitably receive various forces such as aiming and impact, which eventually act on the sliding rail structure (which has a gap) and the fastening bolts (which also have a gap), so that after a certain period of use, very small gap movements are generated between the slider and the tool holder, which originally connect the firmly structure becomes a relatively fixed structure which generates small movements, so that once the movements occur, when the boring tool is operated, the precision of the cutter bridge is greatly reduced, the cutter bridge also meets the problems encountered in the production process, the cutter bridge is just installed at the beginning, even if various acting forces exist, the cutter bridge has no gap, so the machining precision can be ensured at the moment, once the cutter bridge works for a period of time, the gap inevitably exists under the action of the various acting forces, and the cutter bridge can only be stopped for maintenance at the moment, therefore, the applicant develops the structure of the cutter bridge, and the cutter bridge further comprises a longitudinal long groove 6 arranged on the cutter bridge 1, a longitudinal key 7 arranged on the sliding block 2 and matched with the longitudinal long groove, and a transverse position adjusting mechanism 8 for transversely adjusting and limiting the sliding block 2 and the cutter bridge 1; the length of the longitudinal key 7 is smaller than that of the longitudinal slot 6, so that the conventional structure is changed, in the longitudinal direction, the longitudinal key is smaller than that of the longitudinal slot by adopting the structure that the longitudinal slot is matched with the longitudinal key, and the position in the longitudinal slot can be adjusted.
In this embodiment, the lateral position adjusting mechanism 8 includes at least two lateral keyways 81 provided on the bridge 1 and one lateral key 82 provided on the sliding block 2 and matched with the lateral keyways 81, the number of the lateral keyways 81 is generally 2-4 according to actual needs, the lateral keyways are arranged along the length direction of the longitudinal slot 6, the mutual spacing can be equally spaced, or the lateral keyways and the lateral keys can be arranged according to actual needs, the cross sections of the lateral keyways and the lateral keys are rectangular, rounded corners around the lateral keyways and can limit the lateral and longitudinal directions when the lateral keyways are matched with the lateral keys, and generally, the lateral keyways 81 and the longitudinal slot 6 form an included angle of 90 degrees; further, the two longitudinal long grooves 6 are arranged in a staggered manner, so that the structural strength is improved. When the adjustment is carried out, the screws for fixing the sliding block and the cutter bridge are loosened and screwed out outwards, so that relative sliding can be generated between the sliding block and the cutter bridge, then the longitudinal key slides in the longitudinal long groove, the transverse key is inserted into the corresponding transverse groove, and then the sliding block and the cutter bridge are fixed through the screws. After the structure of the boring cutter is changed, the transverse key can be used for limiting in the longitudinal direction, and the transverse key can be used for limiting in the transverse direction and then limiting by matching with the longitudinal key, so that the accuracy of the boring cutter can be ensured even after a period of work, and the working efficiency is improved.
Further, the surface of the sliding block 2, which is in contact with the tool apron 3, is provided with a plurality of longitudinal anti-slip grooves 10, and the extending direction of the longitudinal anti-slip grooves 10 is the same as the extending direction of the longitudinal long grooves 6; the cross section of the longitudinal anti-slip groove 10 is an inverted triangle.
Example 2, see FIGS. 4-5; on the basis of the embodiment 1, we have further improved because during the use, we find that the transverse keys 82 and the transverse key grooves 81, as well as the longitudinal keys 7 and the longitudinal long grooves 6, are difficult to disassemble, one way is to use a knocking way to loosen them a little by little, which is time consuming and laborious, delays the production efficiency, and the other way is to use a powerful knocking way, but the situation of key or key groove damage often occurs, which affects the installation at the replacement position and also the machining precision, for this reason, we increase the knocking mechanism 9 arranged in the cutter bridge to knock the transverse keys and the longitudinal keys, the knocking mechanism comprises a counter bore 901 arranged on the bottom surface of the tool bridge 1, a threaded hole 902 communicated with the counter bore, an air inlet cavity 903 communicated with the threaded hole, a piston hole 904 communicated with the air inlet cavity 903, a through hole 905 communicated with the piston hole 904 and an exhaust hole 911 communicated with the through hole, wherein the threaded hole 902 is in threaded connection with a sealing screw plug 906, the sealing screw plug is provided with a connecting column 907 which is in clearance fit with the air inlet cavity 903, a sealing ring is arranged on the connecting column, a connecting cover 908 is fixedly arranged on the connecting column, a cavity 909 is arranged in the connecting cover, a plurality of lateral air inlets 910 are arranged on the outer circumferential surface of the cavity 909, the cavity 909 is communicated with an air inlet hole 920 arranged on the tool bridge 1 through the lateral air inlets, the top end of the connecting cover is provided with a through hole 912 communicated with the piston hole 904, a sliding piston 913 is arranged in the piston hole 904, the sliding piston 914 is provided with a main compression spring 915 which is sleeved on the impact rod 914, the bottom surfaces of the impact rod 914 and the transverse key groove and the bottom surface of the longitudinal long groove have a first impact interval; the top end of the impact rod is provided with an upper end mounting hole 916, an auxiliary impact rod 917 is arranged in the upper end mounting hole, the lower end of the auxiliary impact rod is provided with a spring column 918, an auxiliary spring 919 is sleeved on the spring column, a second impact distance is arranged between the auxiliary impact rod 917 and the bottom surface of the transverse key groove and between the auxiliary impact rod 917 and the bottom surface of the longitudinal long groove, a third distance is arranged between the bottom surface of the auxiliary impact rod and the upper end mounting hole, and the length of the third distance is larger than the second impact distance; a knocking mechanism is arranged below each transverse key groove; the number of knocking mechanisms can be related to the bottom surface of the longitudinal long groove according to actual requirements; likewise, all of the air inlet holes 920 may be connected through process holes and with a general air inlet (not shown in the drawing); all the exhaust holes can also be communicated through another process hole and communicated with a total exhaust hole (not shown in the drawing), when the compressed air is introduced into the air inlet hole during working, the compressed air pushes the sliding piston, so that the auxiliary impact rod moves upwards to knock the transverse key and the longitudinal key for the first time, then the auxiliary impact rod is retracted by pressure, and the impact rod 914 is used for secondary knocking, so that the corresponding double effect can not be damaged, a better knocking effect can be achieved, and looseness is generated between the key and the key groove.
Meanwhile, the present embodiment is merely to explain the present utility model and is not to be construed as limiting the present utility model, and one skilled in the art can make modifications to the present embodiment without creative contribution as required after reading the present specification, but is protected by patent law within the scope of the claims of the present utility model.
Claims (7)
1. The high-precision double-blade bridge type superhard boring cutter comprises a cutter bridge (1), two sliding blocks (2) arranged on the cutter bridge (1), a cutter holder (3), a long hole (4) arranged on the cutter holder (3) and a fastening screw (5) arranged in the long hole (4), wherein a boring blade is arranged on the cutter holder (3); the method is characterized in that: the cutter bridge also comprises a longitudinal long groove (6) arranged on the cutter bridge (1), a longitudinal key (7) arranged on the sliding block (2) and matched with the longitudinal long groove, and a transverse position adjusting mechanism (8) for adjusting and limiting the transverse positions of the sliding block (2) and the cutter bridge (1); the length of the longitudinal key (7) is smaller than the length of the longitudinal long groove (6).
2. The high precision double edge bridge superhard boring cutter of claim 1, wherein: the transverse position adjusting mechanism (8) comprises at least two transverse key grooves (81) arranged on the cutter bridge (1) and one transverse key (82) arranged on the sliding block (2) and matched with the transverse key grooves (81).
3. The high precision double edge bridge superhard boring cutter of claim 2, wherein: at least two transverse key grooves (81) arranged on the cutter bridge (1) are arranged along the length direction of the longitudinal long groove (6).
4. The high precision double edge bridge superhard boring cutter of claim 2, wherein: the transverse key groove (81) and the longitudinal long groove (6) form an included angle of 90 degrees.
5. The high precision double edge bridge superhard boring cutter according to claim 2, 3 or 4, wherein: the two longitudinal long grooves (6) are arranged in a staggered way.
6. The high precision double edge bridge superhard boring cutter according to claim 2, 3 or 4, wherein: the surface of the sliding block (2) contacted with the tool apron (3) is provided with a plurality of longitudinal anti-slip grooves (10), and the extending direction of the longitudinal anti-slip grooves (10) is the same as the extending direction of the longitudinal long grooves (6).
7. The high precision double edge bridge superhard boring cutter of claim 6, wherein: the cross section of the longitudinal anti-slip groove (10) is in an inverted triangle shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211093738.8A CN116037975B (en) | 2022-09-08 | 2022-09-08 | High-precision double-blade bridge type superhard boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211093738.8A CN116037975B (en) | 2022-09-08 | 2022-09-08 | High-precision double-blade bridge type superhard boring cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116037975A true CN116037975A (en) | 2023-05-02 |
| CN116037975B CN116037975B (en) | 2023-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211093738.8A Active CN116037975B (en) | 2022-09-08 | 2022-09-08 | High-precision double-blade bridge type superhard boring cutter |
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| CN (1) | CN116037975B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012136759A1 (en) * | 2011-04-05 | 2012-10-11 | Pibomulti S.A. | Tool holder for a tool machine |
| CN104646699A (en) * | 2015-02-03 | 2015-05-27 | 成都成林数控刀具有限公司 | Adjustable double-cutting-edge large-diameter boring cutter with insection eccentric engagement structure |
| CN108580943A (en) * | 2018-04-28 | 2018-09-28 | 昆山市华霆精密机械有限公司 | A kind of end face groove boring cutter |
| CN209465718U (en) * | 2018-12-14 | 2019-10-08 | 山东豪迈机械制造有限公司 | A kind of bridge-type adjustable boring tool |
| CN209614293U (en) * | 2019-02-01 | 2019-11-12 | 松德刀具（长兴）科技有限公司 | Bridge-type rough boring cutter |
| CN209754583U (en) * | 2019-03-29 | 2019-12-10 | 西峡县飞龙汽车部件有限公司 | Structure for adjusting positioning center of vertical lathe clamp |
| CN210147021U (en) * | 2019-07-08 | 2020-03-17 | 宁波欧乐机械有限公司 | Bridge type fine boring cutter |
| CN111266612A (en) * | 2020-03-20 | 2020-06-12 | 烟台艾迪精密机械股份有限公司 | Coarse-fine dual-mode adjustable boring cutter and using method thereof |
| CN210817498U (en) * | 2019-06-27 | 2020-06-23 | 中国第一汽车股份有限公司 | Three-layer stepped large-diameter boring cutter for machining front shell of transmission case |
| DE102020114431A1 (en) * | 2020-05-29 | 2021-03-18 | Schaeffler Technologies AG & Co. KG | Tool holder and method for turning a workpiece |
| DE102020213481A1 (en) * | 2020-10-27 | 2022-04-28 | Gühring KG | CUTTING TOOL WITH ONE ADJUSTMENT DEVICE |
| CN217315918U (en) * | 2022-02-21 | 2022-08-30 | 无锡智能自控工程股份有限公司 | Adjustable excircle rough boring cutter for numerical control machining center |
-
2022
- 2022-09-08 CN CN202211093738.8A patent/CN116037975B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012136759A1 (en) * | 2011-04-05 | 2012-10-11 | Pibomulti S.A. | Tool holder for a tool machine |
| CN104646699A (en) * | 2015-02-03 | 2015-05-27 | 成都成林数控刀具有限公司 | Adjustable double-cutting-edge large-diameter boring cutter with insection eccentric engagement structure |
| CN108580943A (en) * | 2018-04-28 | 2018-09-28 | 昆山市华霆精密机械有限公司 | A kind of end face groove boring cutter |
| CN209465718U (en) * | 2018-12-14 | 2019-10-08 | 山东豪迈机械制造有限公司 | A kind of bridge-type adjustable boring tool |
| CN209614293U (en) * | 2019-02-01 | 2019-11-12 | 松德刀具（长兴）科技有限公司 | Bridge-type rough boring cutter |
| CN209754583U (en) * | 2019-03-29 | 2019-12-10 | 西峡县飞龙汽车部件有限公司 | Structure for adjusting positioning center of vertical lathe clamp |
| CN210817498U (en) * | 2019-06-27 | 2020-06-23 | 中国第一汽车股份有限公司 | Three-layer stepped large-diameter boring cutter for machining front shell of transmission case |
| CN210147021U (en) * | 2019-07-08 | 2020-03-17 | 宁波欧乐机械有限公司 | Bridge type fine boring cutter |
| CN111266612A (en) * | 2020-03-20 | 2020-06-12 | 烟台艾迪精密机械股份有限公司 | Coarse-fine dual-mode adjustable boring cutter and using method thereof |
| DE102020114431A1 (en) * | 2020-05-29 | 2021-03-18 | Schaeffler Technologies AG & Co. KG | Tool holder and method for turning a workpiece |
| DE102020213481A1 (en) * | 2020-10-27 | 2022-04-28 | Gühring KG | CUTTING TOOL WITH ONE ADJUSTMENT DEVICE |
| CN217315918U (en) * | 2022-02-21 | 2022-08-30 | 无锡智能自控工程股份有限公司 | Adjustable excircle rough boring cutter for numerical control machining center |
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|---|---|
| CN116037975B (en) | 2023-08-11 |
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