CN113927054A - Quick change mechanism for connecting superhard boring cutter head and cutter bar - Google Patents
Quick change mechanism for connecting superhard boring cutter head and cutter bar Download PDFInfo
- Publication number
- CN113927054A CN113927054A CN202111131052.9A CN202111131052A CN113927054A CN 113927054 A CN113927054 A CN 113927054A CN 202111131052 A CN202111131052 A CN 202111131052A CN 113927054 A CN113927054 A CN 113927054A
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- locking
- superhard
- block
- cutter bar
- locking groove
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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
The invention discloses a quick change mechanism for connecting a superhard boring cutter head and a cutter bar, which comprises the cutter bar, the superhard boring cutter head and a locking groove with a lateral opening, wherein the locking groove is arranged at the end part of the superhard boring cutter head; the clamping block is arranged at the end part of the cutter bar and extends into the locking groove; the locking device comprises a containing opening cavity, a locking block and a limiting part, wherein one end of the locking block is positioned in the containing opening cavity, the other end of the locking block is positioned in a locking groove, and the limiting part is arranged on the cutter bar; the clamping block and the locking groove form a first clamping part, a second clamping part is formed between the clamping block and the locking block, the locking block and the locking groove form a third clamping part, and a fourth clamping part is formed between the limiting part and the locking block. The cutter bar and the boring cutter head can be replaced quickly, the connection is firm, the stability is good, and the working efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of superhard cutters, in particular to a quick-change mechanism for connecting a superhard boring cutter head and a cutter bar.
Background
The superhard material cutter is called as superhard cutter for short, and the application of the superhard material cutter in the field of mechanical manufacturing greatly improves the labor production efficiency and the processing quality, improves the product grade and reduces the manufacturing cost; the superhard boring cutter (mostly adopting artificial polycrystalline diamond (PCD)) is one of the superhard boring cutters, is mainly used for efficient precision machining of nonferrous metals, and is widely applied to industries such as the automobile industry.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a quick change mechanism for connecting a superhard boring cutter head and a cutter bar, which can quickly realize the replacement between the cutter bar and the boring cutter head, has firm connection and good stability, and greatly improves the working efficiency.
In order to achieve the purpose, the invention is realized by the following technical scheme: a quick change mechanism for connecting a superhard boring cutter head and a cutter bar comprises the cutter bar and the superhard boring cutter head,
the locking groove is provided with a lateral opening and is arranged at the end part of the superhard boring cutter head;
the clamping block is arranged at the end part of the cutter bar and extends into the locking groove;
an accommodating opening cavity, one end of a locking block is positioned in the accommodating opening cavity, the other end of the locking block is positioned in the locking groove,
the limiting part is arranged on the cutter bar;
the clamping block and the locking groove form a first clamping part, a second clamping part is formed between the clamping block and the locking block, the locking block and the locking groove form a third clamping part, and a fourth clamping part is formed between the limiting part and the locking block.
As a further preferable technical solution of the present invention, the locking groove includes a connecting groove, an upper locking groove and a lower locking groove that are communicated with the connecting groove, the locking block is provided with a first lower latch that extends into the lower locking groove, and the third engaging portion includes a third upper inclined side surface that is provided on the lower locking groove and a third lower inclined side surface that is provided on the first lower latch and is engaged with the third upper inclined side surface.
As a further preferable aspect of the present invention, the second engaging portion includes a second upper inclined surface provided on the locking block and a second lower inclined side surface provided on the engaging block and engaged with the second upper inclined surface.
As a further preferable embodiment of the present invention, the first engaging portion includes a first inclined lower surface provided on the engaging block and a second inclined upper surface provided on the upper locking groove and engaged with the first inclined lower surface.
As a further preferable technical solution of the present invention, the limiting portion includes a pin hole provided on the cutter bar and a round pin provided in the pin hole.
As a further preferable aspect of the present invention, the fourth engaging portion includes a second lower latch provided on the lock block, and a fourth inclined surface provided on the second lower latch and contacting the round pin.
As a further preferable technical solution of the present invention, a first detachment gap is provided between the first lower latch and the bottom surface of the lower locking groove; and a second disassembly gap is arranged between the second lower latch and the bottom surface of the accommodating opening cavity.
As a further preferable technical solution of the present invention, the cutter bar is provided with a locking screw for locking the locking block, and the fourth inclined surface is in close contact with the round pin under the action of the locking screw.
Advantageous effects
The invention provides a quick-change mechanism for connecting a superhard boring cutter head and a cutter bar. Compared with the prior art, the method has the following beneficial effects:
the cutter bar and the boring cutter head can be replaced quickly, the connection is firm, the stability is good, and the working efficiency is greatly improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
fig. 4 is a view showing the structure of the round pin of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution of a quick change mechanism for connecting a superhard boring head and a cutter bar, wherein: a quick change mechanism for connecting a superhard boring cutter head and a cutter bar comprises a cutter bar 1 and a superhard boring cutter head 2,
a locking groove 3 with a lateral opening is arranged at the end part of the superhard boring head 2;
the clamping block 4 is arranged at the end part of the cutter bar 1, and the clamping block 4 extends into the locking groove 3 from a side opening;
an accommodating opening cavity 5, one end of a locking block 6 is positioned in the accommodating opening cavity 5, the other end is positioned in the locking groove 3,
the limiting part 7 is arranged on the cutter bar 1;
a first clamping part 8 is formed between the clamping block 4 and the locking groove 3, a second clamping part 9 is formed between the clamping block 4 and the locking block 6, a third clamping part 10 is formed between the locking block 6 and the locking groove 3, and a fourth clamping part 11 is formed between the limiting part 7 and the locking block 6.
In this embodiment, the locking groove 3 includes a connecting groove 301, an upper locking groove 302 and a lower locking groove 303 which are communicated with the connecting groove 301, the locking block 6 is provided with a first lower latch 601 which extends into the lower locking groove 303, the third engaging portion 10 includes a third upper inclined side 1001 which is provided on the lower locking groove 303 and a third lower inclined side 1002 which is provided on the first lower latch 601 and is matched with the third upper inclined side 1001, and the third upper inclined side 1001 and the third lower inclined side 1002 are attached to each other; the connecting slot portions are relatively narrow to prevent the connecting structures, such as the first lower latch, entering the upper locking slot 302 and the lower locking slot 303 from being disengaged.
Further, the second engaging portion 9 includes a second upper inclined surface 901 disposed on the locking block 6 and a second lower inclined side surface 902 disposed on the engaging block 4 and matched with the second upper inclined surface 901, and the second upper inclined surface and the second lower inclined side surface are attached to each other.
Further, the first engaging portion 8 includes a first inclined lower side 801 provided on the engaging block 4 and a second inclined upper side 802 provided on the upper locking groove 302 and matched with the first inclined lower side 801, and the first inclined lower side and the second inclined upper side are attached to each other.
In order to obtain better connecting and fastening effects, an acute angle a is formed between the second upper inclined surface and the upper surface of the locking block, an acute angle b is formed between the first inclined lower side surface and the upper surface of the clamping block, and the acute angle b is larger than the acute angle a; typically, the acute angle b is 4 × acute angle a;
further, the limiting part 7 comprises a pin hole 701 formed in the cutter bar 1 and a round pin 702 arranged in the pin hole 701, and the round pin is installed in the pin hole so as to be convenient to detach.
Further, the fourth engaging portion 11 includes a second lower latch 1101 provided on the lock block 6, and a fourth inclined surface 1102 provided on the second lower latch 1101 and contacting the round pin 702.
Further, a locking screw 12 for locking the locking block 6 is arranged on the cutter bar 1, and under the action of the locking screw 12, the fourth inclined surface 1102 is in close contact with the round pin 702.
Thus, when the locking device is installed, the clamping block and the locking block enter the locking groove through the lateral opening, the locking block is locked through the locking screw, after the installation, we can see that, when working, the existence of the third clamping part 10 ensures the tight fit of the first lower latch and the lower locking groove, so as to prevent the first lower latch from disengaging, the fourth clamping part is matched with the round pin so as to prevent the second lower latch from disengaging, the first clamping part 8 can prevent the clamping block from disengaging from the upper clamping groove, at the same time, since the second engaging portion 9 includes the second upper inclined surface 901 provided on the locking block 6 and the second lower inclined side surface 902 provided on the engaging block 4 and engaged with the second upper inclined surface 901, therefore, under the action of the first clamping part, the connection between the cutter rod and the superhard boring cutter head is more stable. When the superhard boring head is replaced, the whole structure can be separated only by detaching the round pin, and further, for faster replacement, a first detaching gap H1 is arranged between the first lower latch 601 and the bottom surface of the lower locking groove 303; a second detachment gap H2 is provided between the second lower latch 1101 and the bottom surface of the accommodation opening cavity 5. The existence in clearance is dismantled to first dismantlement clearance, second for after the round pin is dismantled, under locking screw 12's effect, the latch segment is removed in the clearance to first dismantlement clearance, second dismantlement, and then makes second block portion lose efficacy fast, and inclined plane and second inclined side under and break away from mutually on the second promptly, more convenient dismantlement.
Further, referring to fig. 4, in order to facilitate disassembly, the round pin 702 comprises an outer pin body 7021 and an inner pin body 7022, the outer pin body is provided with an inner pin hole, the end part of the inner pin hole is provided with a tapered hole 7023, the inner pin body 7022 is provided with a tapered section 7024 matched with the tapered hole, and the end part of the tapered section is provided with a flat-head column 7025 extending out of the tapered hole, so that disassembly is very convenient.
Claims (8)
1. The quick change mechanism for connecting the superhard boring cutter head and the cutter bar comprises the cutter bar (1) and the superhard boring cutter head (2), and is characterized in that;
the locking groove (3) is provided with a lateral opening and is arranged at the end part of the superhard boring cutter head (2);
the clamping block (4) is arranged at the end part of the cutter bar (1), and the clamping block (4) extends into the locking groove (3);
an accommodating opening cavity (5), one end of a locking block (6) is positioned in the accommodating opening cavity (5), the other end is positioned in the locking groove (3),
the limiting part (7) is arranged on the cutter bar (1);
the clamping block (4) and a first clamping part (8) is formed between the locking grooves (3), a second clamping part (9) is formed between the clamping block (4) and the locking blocks (6), a third clamping part (10) is formed between the locking blocks (6) and the locking grooves (3), and a fourth clamping part (11) is formed between the limiting part (7) and the locking blocks (6).
2. The quick-change mechanism for coupling a superhard boring head and a tool holder as claimed in claim 1, wherein the locking recess (3) comprises a connecting groove (301), an upper locking groove (302) communicating with the connecting groove (301) and a lower locking groove (303), the locking block (6) is provided with a first lower latch (601) extending into the lower locking groove (303), and the third engaging portion (10) comprises a third upper inclined flank (1001) provided on the lower locking groove (303) and a third lower inclined flank (1002) provided on the first lower latch (601) and cooperating with the third upper inclined flank (1001).
3. The quick-change mechanism for connecting a superhard boring head and a cutter bar according to claim 2, wherein the second clamping part (9) comprises a second upper inclined surface (901) arranged on the locking block (6) and a second lower inclined side surface (902) arranged on the clamping block (4) and matched with the second upper inclined surface (901).
4. The quick-change mechanism for the connection of a superhard boring head and a boring bar according to claim 2, characterized in that the first engaging part (8) comprises a first inclined underside (801) provided on the engaging block (4) and a second inclined upper side (802) provided on the upper locking groove (302) and cooperating with the first inclined underside (801).
5. The quick-change mechanism for the connection of a superhard boring head and a tool shank according to claim 2, wherein the stop portion (7) comprises a pin hole (701) provided on the tool shank (1) and a round pin (702) provided in the pin hole (701).
6. The quick-change mechanism for the connection of a superhard boring head and the shank according to claim 5, wherein the fourth engaging part (11) comprises a second lower latch (1101) provided on the locking block (6) and a fourth inclined surface (1102) provided on the second lower latch (1101) and contacting the round pin (702).
7. The quick-change mechanism for connecting the superhard boring head and the cutter bar as claimed in claim 6, wherein a first disassembly gap is arranged between the first lower latch (601) and the bottom surface of the lower locking groove (303); and a second disassembly gap is formed between the second lower latch (1101) and the bottom surface of the containing opening cavity (5).
8. The quick-change mechanism for connecting the superhard boring head and the cutter bar according to claim 7, characterized in that a locking screw (12) for locking the locking block (6) is arranged on the cutter bar (1), and the fourth inclined surface (1102) is in close contact with the round pin (702) under the action of the locking screw (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111131052.9A CN113927054B (en) | 2021-09-26 | 2021-09-26 | Quick change mechanism for connection of superhard boring tool bit and cutter bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111131052.9A CN113927054B (en) | 2021-09-26 | 2021-09-26 | Quick change mechanism for connection of superhard boring tool bit and cutter bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113927054A true CN113927054A (en) | 2022-01-14 |
| CN113927054B CN113927054B (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111131052.9A Active CN113927054B (en) | 2021-09-26 | 2021-09-26 | Quick change mechanism for connection of superhard boring tool bit and cutter bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113927054B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB570965A (en) * | 1943-04-28 | 1945-07-31 | Ethert Marshall Barrett | Combined boring bar and tool bit holder |
| DE1777097A1 (en) * | 1967-09-25 | 1971-04-08 | Gen Electric | Adjustable tool for machining |
| DE2501379A1 (en) * | 1975-01-15 | 1976-07-22 | Eugen Feinauer | Tool head has locating bolt arrangement - for pre-setting and quick changing of tools |
| US6406225B1 (en) * | 2000-05-01 | 2002-06-18 | Stojan Stojanovski | Boring head assembly |
| CN201529779U (en) * | 2009-10-20 | 2010-07-21 | 兖矿集团有限公司 | Rapid replacing cutter boring rod |
| CN204565141U (en) * | 2015-02-12 | 2015-08-19 | 广西玉柴机器股份有限公司 | A kind of cutter head |
| CN204657499U (en) * | 2015-04-03 | 2015-09-23 | 武汉钢铁(集团)公司 | Combined type boring cutter mechanism |
| CN106694922A (en) * | 2016-12-23 | 2017-05-24 | 盐城工学院 | Quick-clamped self-centering large-diameter boring tool |
| CN207127279U (en) * | 2017-09-19 | 2018-03-23 | 马少博 | A kind of boring head holder structure |
| CN207806648U (en) * | 2017-12-29 | 2018-09-04 | 松德刀具（长兴）科技有限公司 | A kind of automatic dynamic balance boring cutter |
| CN208261883U (en) * | 2018-04-02 | 2018-12-21 | 沈阳林氏工具制造有限公司 | A kind of device being conveniently replaceable cutter head and fixed boring blade |
| CN210615159U (en) * | 2019-09-11 | 2020-05-26 | 绍兴祥龙精密机械有限公司 | Blind hole boring cutter assembly |
| CN211889042U (en) * | 2020-04-07 | 2020-11-10 | 成都和鸿若克科技有限公司 | Self-made boring cutter |
| CN212398162U (en) * | 2020-02-01 | 2021-01-26 | 大连华山橡塑机制造有限公司 | Horizontal boring machine tool bit tool row convenient to replace |
| CN212704419U (en) * | 2020-08-21 | 2021-03-16 | 齐齐哈尔北方机器有限责任公司 | Numerical control turning and boring cutter head |
-
2021
- 2021-09-26 CN CN202111131052.9A patent/CN113927054B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB570965A (en) * | 1943-04-28 | 1945-07-31 | Ethert Marshall Barrett | Combined boring bar and tool bit holder |
| DE1777097A1 (en) * | 1967-09-25 | 1971-04-08 | Gen Electric | Adjustable tool for machining |
| DE2501379A1 (en) * | 1975-01-15 | 1976-07-22 | Eugen Feinauer | Tool head has locating bolt arrangement - for pre-setting and quick changing of tools |
| US6406225B1 (en) * | 2000-05-01 | 2002-06-18 | Stojan Stojanovski | Boring head assembly |
| CN201529779U (en) * | 2009-10-20 | 2010-07-21 | 兖矿集团有限公司 | Rapid replacing cutter boring rod |
| CN204565141U (en) * | 2015-02-12 | 2015-08-19 | 广西玉柴机器股份有限公司 | A kind of cutter head |
| CN204657499U (en) * | 2015-04-03 | 2015-09-23 | 武汉钢铁(集团)公司 | Combined type boring cutter mechanism |
| CN106694922A (en) * | 2016-12-23 | 2017-05-24 | 盐城工学院 | Quick-clamped self-centering large-diameter boring tool |
| CN207127279U (en) * | 2017-09-19 | 2018-03-23 | 马少博 | A kind of boring head holder structure |
| CN207806648U (en) * | 2017-12-29 | 2018-09-04 | 松德刀具（长兴）科技有限公司 | A kind of automatic dynamic balance boring cutter |
| CN208261883U (en) * | 2018-04-02 | 2018-12-21 | 沈阳林氏工具制造有限公司 | A kind of device being conveniently replaceable cutter head and fixed boring blade |
| CN210615159U (en) * | 2019-09-11 | 2020-05-26 | 绍兴祥龙精密机械有限公司 | Blind hole boring cutter assembly |
| CN212398162U (en) * | 2020-02-01 | 2021-01-26 | 大连华山橡塑机制造有限公司 | Horizontal boring machine tool bit tool row convenient to replace |
| CN211889042U (en) * | 2020-04-07 | 2020-11-10 | 成都和鸿若克科技有限公司 | Self-made boring cutter |
| CN212704419U (en) * | 2020-08-21 | 2021-03-16 | 齐齐哈尔北方机器有限责任公司 | Numerical control turning and boring cutter head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113927054B (en) | 2022-08-30 |
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