CN216607354U - Multifunctional clamping cutter bar - Google Patents
Multifunctional clamping cutter bar Download PDFInfo
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- CN216607354U CN216607354U CN202123154733.5U CN202123154733U CN216607354U CN 216607354 U CN216607354 U CN 216607354U CN 202123154733 U CN202123154733 U CN 202123154733U CN 216607354 U CN216607354 U CN 216607354U
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- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000003801 milling Methods 0.000 abstract description 15
- 238000005553 drilling Methods 0.000 abstract description 6
- 238000003754 machining Methods 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 239000000110 cooling liquid Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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Abstract
The utility model discloses a multifunctional clamping cutter bar, and belongs to the technical field of machining cutters. The cutter bar comprises a clamping handle and a cutter body, and the clamping handle is provided with a central hole; the cutter body is provided with at least one spiral groove, the top end of the cutter body is provided with a mounting groove, two sides of the mounting groove are provided with fixed blocks, each fixed block is provided with an inner cooling hole and a gap bridge screw pin hole, the inner cooling hole is communicated with the central hole, and the cutter head penetrates through the gap bridge screw pin hole through a screw to be mounted in the mounting groove and is abutted against the fixed block; the mounting groove comprises a bottom surface; one side of the fixed block, which is close to the mounting groove, is provided with a first positioning surface and a second positioning surface, and a tool withdrawal groove is arranged between the first positioning surface and the bottom surface and between the second positioning surface and the bottom surface. The utility model can be used for installing a drilling tool bit and a milling tool bit, has the advantages of high precision, high efficiency, quick change of the tool bit and the like, is suitable for high-speed and high-feed drilling processing, is also suitable for milling processing of planes, key grooves, various molding surfaces and the like, and has wide application.
Description
Technical Field
The utility model relates to a multifunctional clamping cutter bar, and belongs to the technical field of machining cutters.
Background
The material of the traditional drill bit and milling cutter is generally high-speed steel or hard alloy. The drill bit and the milling cutter of the high-speed steel have low processing precision, short service life and low efficiency; the hard alloy is made of noble metals of tungsten, cobalt and trace rare elements, is not renewable, and has small application range because the drill bit and the milling cutter of the integral hard alloy have high cost, consume a great amount of hard alloy, have high manufacturing cost and low economic value.
The drill bit and the milling cutter which can be detached and replaced are designed in the prior art, the problems of high cost and the like are solved, and the method has good price advantage. Can dismantle drill bit and milling cutter of change, generally constitute by carbide's tool bit and steel cutter arbor, greatly reduced the cost, but also ubiquitous following problem:
some cutter arbor by deformation centre gripping, in the use, change 10 ~ 20 times new tool bit and just need change a new cutter arbor. The high temperature and high load in the machining process can lead the cutter to reach the fatigue life limit too early, the cutter head is not clamped tightly, the machining precision and the service life are influenced, the machining stability is also influenced, if the cutter bar is not replaced in time, the cutter bar can be broken in the machining process, parts are damaged, and a machine tool spindle can be damaged in serious cases, so that very serious consequences are caused.
Some cutter bars are reliable in clamping, but are realized through interference fit, so that the cutter bars have higher manufacturing requirements and higher difficulty, and the cutter head is inconvenient to replace; more importantly, the steel cutter bar parts of the drill bit and the milling cutter with replaceable cutter heads at present are independently separated and cannot be used universally.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a multifunctional clamping cutter bar which can be used for installing a drilling cutter head and a milling cutter head, has the advantages of high precision, high efficiency, quick change of the cutter head and the like, is suitable for drilling with high rotating speed and high feeding, is also suitable for milling planes, key grooves, various forming surfaces and the like, and is widely applied.
The utility model provides a multifunctional clamping cutter bar which comprises a clamping handle and a cutter body, wherein the clamping handle is provided with a central hole; the cutter body is provided with at least one spiral groove, the top end of the cutter body is provided with a mounting groove, two sides of the mounting groove are provided with fixed blocks, each fixed block is provided with an inner cooling hole and a gap bridge screw pin hole, the inner cooling hole is communicated with the central hole, and the cutter head penetrates through the gap bridge screw pin hole through a screw to be mounted in the mounting groove and is abutted against the fixed block; the mounting groove comprises a bottom surface; one side of the fixed block, which is close to the mounting groove, is provided with a first positioning surface and a second positioning surface, and a tool withdrawal groove is arranged between the first positioning surface and the bottom surface and between the second positioning surface and the bottom surface.
In one embodiment of the utility model, the bottom surface is perpendicular to the axis of the cutter body; the area of the first positioning surface is larger than that of the second positioning surface, and an included angle between the first positioning surface and the second positioning surface is 120-170 degrees.
In an implementation mode of the utility model, the clamping handle is a cylinder, a clamping plane is arranged on the surface of the cylinder of the clamping handle, an abutting circular truncated cone is arranged at one end of the clamping handle, a cutter body is arranged at one end, far away from the clamping handle, of the abutting circular truncated cone, the axial leads of the clamping handle, the abutting circular truncated cone and the cutter body are the same, a clamping groove is further arranged between the abutting circular truncated cone and the clamping handle, and the outer diameter of the clamping groove is smaller than that of the clamping handle.
In an embodiment of the present invention, an outer diameter of the abutting circular truncated cone is larger than an outer diameter of the clamping handle, and an outer diameter of the abutting circular truncated cone is larger than an outer diameter of the cutter body.
In one embodiment of the utility model, one end of the spiral groove extends to the end part of the cutter body close to the abutting round table; the other end extends to the mounting groove and is intersected with the second positioning surface.
In one embodiment of the utility model, the number of the fixed block, the first positioning surface and the second positioning surface is two, the two first positioning surfaces are parallel to each other, the two second positioning surfaces are parallel to each other, and the distance between the two first positioning surfaces is equal to the distance between the two second positioning surfaces and equal to the groove width of the mounting groove; the groove width is 0.2-0.5 times of the diameter of the cutter body, and the groove depth of the mounting groove is 0.3-0.5 times of the diameter of the cutter body.
In one embodiment of the utility model, the diameter of the central hole is 0.1 to 0.4 times of the diameter of the cutter body, and the diameter of the internal cooling hole is 0.05 to 0.2 times of the diameter of the cutter body.
In one embodiment of the utility model, the gap bridge screw pin hole penetrates through the two first positioning surfaces, an included angle between the axis of the gap bridge screw pin hole and the first positioning surface is 15-45 degrees and is parallel to the bottom surface, and the distance from the hole center of the gap bridge screw pin hole to the bottom surface is 0.2-0.4 times of the diameter of the cutter body.
In one embodiment of the utility model, the gap bridge screw pin hole comprises a threaded hole and a round pin hole, the threaded hole is positioned on one of the fixed blocks, and the round pin hole is positioned on the other fixed block; the diameter of the threaded hole is M2-M10, the diameter of the round pin hole is 0.1-0.3 times of the diameter of the cutter body, and the center line of the threaded hole is 0-0.2 mm higher than the center line of the round pin hole relative to the bottom surface.
In one embodiment of the present invention, the multifunctional clamping knife bar and the knife head are in clearance fit.
Advantageous effects
1. The cutter bar can be used for installing a drilling cutter head and a milling cutter head, has the advantages of high precision, high efficiency, quick change of the cutter head and the like, is suitable for drilling processing with high rotating speed and high feeding, is also suitable for milling processing of planes, key grooves, various molding surfaces and the like, and is widely applied.
2. The outer diameter of the abutting round platform is larger than that of the clamping handle, the outer diameter of the abutting round platform is larger than that of the cutter body, the clamping handle is fixed on equipment such as a machine tool through the clamping plane and the clamping groove, the abutting round platform can enable the clamping handle to be fixed more firmly and tightly, impact resistance of the cutter body is enhanced, and the cutter body is not prone to deformation.
3. One end of the spiral groove extends to the end part of the cutter body close to the abutting circular truncated cone, and the spiral angle of the spiral groove is 0-20 degrees; the other end of the spiral groove extends to the mounting groove and is intersected with the second positioning surface, and the spiral angle of the spiral groove is 20-60 degrees; the chip card that can avoid the tool bit cutting to produce through this kind of design is on the fixed block, the slope of fixed block head sets up, guarantees the angle of cutting promptly, makes things convenient for the piece to carry to the helicla flute again in, and in the cutting process, the direction of motion of piece in the helicla flute changes, makes the piece more easy fracture and discharge.
4. The two inner cooling holes are communicated with the central hole, the diameter of the central hole is 0.2-0.4 times of the diameter of the cutter body, the diameter of the inner cooling holes is 0.05-0.2 times of the diameter of the cutter body, cooling liquid can enter the two sides of the cutter head from the central hole through the two inner cooling holes respectively, the effect of cooling the cutter head is achieved, the cooling effect is good, the flow of the cooling liquid is stable, and chips can be discharged out of the hole along with the cooling liquid more easily.
5. The area of the first positioning surface is larger than that of the second positioning surface, the included angle between the first positioning surface and the second positioning surface is 120-170 degrees, the first positioning surface can be better attached to a cutter head, and the cutter head can abut against the first positioning surface and the second positioning surface to offset cutting force.
6. The depth of the tool withdrawal groove is 0-1 mm, the height of the tool withdrawal groove is equal to the distance from the hole center of the pin hole of the gap bridge screw to the bottom surface, and the tool bit can be conveniently and quickly assembled and disassembled through the arranged tool withdrawal groove.
7. The diameter of the cutter body is 12 mm to 42 mm, the smaller the cutter rod below 12 mm, the smaller the cutter rod, the larger the manufacturing cost is, and the cutter has no advantages compared with the cutter of the whole hard alloy; cutter holders of 42 mm or more and cutters mounted thereon, which are larger in diameter, are more expensive, lose economic value and have been replaced by modular cutters.
8. The tool bit is matched with the mounting groove of the multifunctional clamping tool bar, the tool bit is in clearance fit with the mounting groove of the multifunctional clamping tool bar, and the clearance range is 0.001-0.02 mm on a single side. A gap bridge hole is formed in the cutter head, the cylindrical pin of the screw is in clearance fit with the gap bridge hole of the cutter head, and the clearance range is 0.001-0.1 mm on one side. During installation, the tool bit is placed into the mounting groove, is flatly attached to the bottom surface and is positioned through the two first positioning surfaces, the two second positioning surfaces and the bottom surface. In the process of locking the inner hexagonal screw, the mounting groove deforms towards the axis of the cutter bar shaft, so that an included angle between the first positioning surface and the second positioning surface ranges from 120 degrees to 170 degrees and can be better attached to the cutter head, and the center of the round pin hole of the bridge screw pin hole is lower than that of the threaded hole, so that the cylindrical pin generates downward force to enable the bottom surface of the cutter head to be more fully attached to the bottom surface of the mounting groove, the cutter head and the cutter bar are very reliably locked, and the cutter head can be replaced under the condition that the cutter bar does not leave a machine tool by the radial locking mode, and the quick change of the cutter head is realized.
Drawings
Fig. 1 is a perspective view of the multifunctional clamping knife bar of the present invention.
Fig. 2 is a perspective view of the multifunctional clamping tool bar according to the present invention from another perspective.
Fig. 3 is a front view of the multifunctional clamping knife bar of the present invention.
Fig. 4 is a schematic view of the assembly of the multifunctional clamping cutter bar and the cutter head of the utility model.
Wherein: 1. a clamping handle; 2. a central bore; 3. clamping a plane; 4. the circular truncated cone is abutted; 41. a card slot; 5. a helical groove; 6. a cutter body; 7. mounting grooves; 71. a bottom surface; 72. a tool withdrawal groove; 8. a gap bridge screw pin hole; 9. an internal cooling hole; 10. a fixed block; 101. a first positioning surface; 102. a second positioning surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings. The terms "inner" and "outer" are used to refer to directions toward and away from, respectively, the geometric center of a particular component.
Example 1
A multifunctional clamping cutter bar is shown in figures 1-3 and comprises a clamping handle 1 and a cutter body 6, wherein the clamping handle 1 is a cylinder, a central hole 2 is formed in the bottom of the clamping handle 1, a clamping plane 3 is formed in the surface of the cylinder of the clamping handle 1, one end of the clamping handle 1 is provided with a supporting circular truncated cone 4, the cutter body 6 is arranged at one end, away from the clamping handle 1, of the supporting circular truncated cone 4, the axial lead of the clamping handle 1, the supporting circular truncated cone 4 and the axial lead of the cutter body 6 are the same, a clamping groove 41 is further formed between the supporting circular truncated cone 4 and the clamping handle 1, and the outer diameter of the clamping groove 41 is smaller than the outer diameter of the clamping handle 1. The outer diameter of the supporting round platform 4 is larger than that of the clamping handle 1, the outer diameter of the supporting round platform 4 is larger than that of the cutter body 6, the clamping handle 1 is fixed on equipment such as a machine tool through the clamping plane 3 and the clamping groove 41, the supporting round platform 4 is arranged to enable the clamping handle 1 to be fixed more firmly and tightly, impact resistance of the cutter body 6 is enhanced, and the cutter body 6 is not prone to deformation.
The surface of the cutter body 6 is provided with two spiral grooves 5, the top end of the cutter body 6 is provided with an installation groove 7, two sides of the installation groove 7 are provided with fixed blocks 10, the top end of each fixed block 10 is provided with an internal cooling hole 9, and the internal cooling holes 9 are communicated with the central hole 2; a gap bridge screw pin hole 8 is formed in the side edge of the fixed block 10, and a cutter head penetrates through the gap bridge screw pin hole 8 through a screw to be installed in the installation groove 7 and is abutted to the fixed block 10; the mounting groove 7 comprises a bottom surface 71, and the bottom surface 71 is perpendicular to the axial lead of the cutter body 6; a first positioning surface 101 and a second positioning surface 102 are arranged on one side of the fixing block 10 close to the mounting groove 7, and a tool withdrawal groove 72 is arranged between the bottom surface 71 and the first positioning surface 101 and the second positioning surface 102.
Further, one end of the spiral groove 5 extends to the end part of the cutter body 6 close to the abutting round table 4, wherein the spiral angle of the spiral groove 5 is 0-20 degrees; the other end of the helical groove 5 extends into the mounting groove 7 and intersects the second locating surface 102, where the helical angle of the helical groove 5 is 20 ° to 60 °. The chip card that can avoid the tool bit cutting to produce through this kind of design on fixed block 10, the slope of fixed block 10 head sets up, guarantees the angle of cutting promptly, makes things convenient for the piece to carry to spiral groove 5 again in, and in the cutting process, the direction of motion of piece in spiral groove 5 changes, makes the piece more easy fracture and discharge.
Further, the number of the fixed block 10, the first positioning surfaces 101 and the second positioning surfaces 102 is two, the two first positioning surfaces 101 are parallel to each other, the two second positioning surfaces 102 are parallel to each other, and the distance between the two first positioning surfaces 101 is equal to the distance between the two second positioning surfaces 102 and is equal to the width of the mounting groove 7; the groove width is 0.2-0.5 times of the diameter of the cutter body 6, and the groove depth of the mounting groove 7 is 0.3-0.5 times of the diameter of the cutter body 6.
Further, the number of the inner cooling holes 9 is two, the two inner cooling holes 9 are communicated with the central hole 2, the diameter of the central hole 2 is 0.1-0.4 times of the diameter of the cutter body 6, the diameter of the inner cooling holes 9 is 0.05-0.2 times of the diameter of the cutter body 6, cooling liquid can enter the two sides of the cutter head from the central hole 2 through the two inner cooling holes 9 respectively, the effect of cooling the cutter head is achieved, the cooling effect is good, the flow of the cooling liquid is stable, and chips can be discharged out of the hole along with the cooling liquid more easily.
Further, the area of the first positioning surface 101 is larger than that of the second positioning surface 102, the included angle between the first positioning surface 101 and the second positioning surface 102 is 120 degrees to 170 degrees, the tool bit can abut against the first positioning surface 101 and the second positioning surface 102 to offset cutting force, and the first positioning surface 101 and the second positioning surface 102 are allowed to have a deviation of +/-5 degrees with the axial lead of the tool body 6.
Further, the gap bridge screw pin hole 8 penetrates through the two first positioning surfaces 101, an included angle between the axis of the gap bridge screw pin hole 8 and the first positioning surfaces 101 is 15-45 degrees and is parallel to the bottom surface 71, the distance from the hole center of the gap bridge screw pin hole 8 to the bottom surface 71 is 0.2-0.4 times of the diameter of the cutter body 6, the gap bridge screw pin hole 8 comprises a threaded hole and a round pin hole, the threaded hole is located on one of the fixing blocks 10, and the round pin hole is located on the other fixing block 10. The diameter of the threaded hole is M2-M10, the diameter of the round pin hole is 0.1-0.3 times of the diameter of the cutter body 6, a chamfer of 1-10 mm multiplied by 5-30 degrees is arranged at the hole opening of the round pin hole, and the center of the threaded hole is 0-0.2 mm higher than the round pin hole and the chamfer center of the hole opening of the round pin along the axial lead direction relative to the bottom surface 71.
Further, the depth of the tool withdrawal groove 72 is 0-1 mm, and the tool bit can be conveniently and rapidly assembled and disassembled through the tool withdrawal groove 72.
Further, the diameter of the cutter body 6 is 12 mm to 42 mm, and the cutter bar with the diameter less than 12 mm is smaller, so that the manufacturing cost of the cutter bar is increased, and the cutter bar has no advantages compared with the cutter of the integral hard alloy; cutter holders of 42 mm or more and cutters mounted thereon, which are larger in diameter, are more expensive, lose economic value and have been replaced by modular cutters.
Example 2
As shown in fig. 4, the embodiment discloses a milling head mounted on a multifunctional clamping cutter bar, the mounting groove 7 of the milling head and the mounting groove 7 of the multifunctional clamping cutter bar are adapted, the milling head and the mounting groove 7 of the multifunctional clamping cutter bar are in clearance fit, and the clearance range is single side 0.001-0.02 mm. A gap bridge hole is formed in the cutter head, the cylindrical pin of the screw is in clearance fit with the gap bridge hole of the cutter head, and the clearance range is 0.02-0.04 mm on a single side. During installation, the tool bit is placed in the installation groove 7, is flatly attached to the bottom surface 71 and is positioned through the two first positioning surfaces 101, the two second positioning surfaces 102 and the bottom surface 71. In the process of locking the socket head cap screws, the mounting groove 7 deforms towards the axial lead of the cutter bar 6, so that the included angle between the first positioning surface 101 and the second positioning surface 102 is 120-170 degrees, the first positioning surface can be better attached to the cutter head, and the center of the round pin hole of the gap bridge screw pin hole 8 is lower than that of the threaded hole, so that the cylindrical pin generates downward force, the bottom surface of the cutter head can be more fully attached to the bottom surface 71 of the mounting groove 7, the cutter head and the cutter bar can be locked very reliably, and the cutter head can be replaced under the condition that the cutter bar does not leave a machine tool by the radial locking mode, and the quick change of the cutter head is realized.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.
Claims (10)
1. The multifunctional clamping cutter bar is characterized by comprising a clamping handle (1) and a cutter body (6), wherein the clamping handle (1) is provided with a central hole (2); the cutter body (6) is provided with at least one spiral groove (5), the top end of the cutter body (6) is provided with a mounting groove (7), two sides of the mounting groove (7) are provided with fixing blocks (10), each fixing block (10) is provided with an inner cooling hole (9) and a gap bridge screw pin hole (8), the inner cooling holes (9) are communicated with the center hole (2), and a cutter head penetrates through the gap bridge screw pin holes (8) through a screw to be mounted in the mounting groove (7) and is abutted to the fixing blocks (10); the mounting groove (7) comprises a bottom surface (71); one side of the fixed block (10) close to the mounting groove (7) is provided with a first positioning surface (101) and a second positioning surface (102), and a tool withdrawal groove (72) is arranged between the first positioning surface (101) and the bottom surface (71) and between the second positioning surface (102) and the bottom surface (71).
2. The multi-function clamping arbor according to claim 1, characterised in that the bottom surface (71) is perpendicular to the axis of the arbor (6); the area of the first positioning surface (101) is larger than that of the second positioning surface (102), and an included angle between the first positioning surface (101) and the second positioning surface (102) is 120-170 degrees.
3. The multifunctional clamping cutter bar as claimed in claim 1, wherein the clamping handle (1) is a cylinder, the surface of the cylinder of the clamping handle (1) is provided with a clamping plane (3), one end of the clamping handle (1) is provided with a supporting circular truncated cone (4), one end of the supporting circular truncated cone (4) far away from the clamping handle (1) is provided with a cutter body (6), the axial leads of the clamping handle (1), the supporting circular truncated cone (4) and the cutter body (6) are the same, a clamping groove (41) is further arranged between the supporting circular truncated cone (4) and the clamping handle (1), and the outer diameter of the clamping groove (41) is smaller than the outer diameter of the clamping handle (1).
4. The multi-functional clamping arbor according to claim 3, characterised in that the outer diameter of the abutment circular truncated cone (4) is larger than the outer diameter of the clamping shank (1), and the outer diameter of the abutment circular truncated cone (4) is larger than the outer diameter of the tool body (6).
5. The multi-function clamping toolholder as defined in claim 4, wherein one end of the helical groove (5) extends to an end of the cutter body (6) near the abutment boss (4); the other end extends to the mounting groove (7) and is intersected with the second positioning surface (102).
6. The multi-functional clamping cutter bar of claim 5, wherein the number of the fixing block (10), the first positioning surfaces (101) and the second positioning surfaces (102) is two, the two first positioning surfaces (101) are parallel to each other, the two second positioning surfaces (102) are parallel to each other, and the distance between the two first positioning surfaces (101) and the distance between the two second positioning surfaces (102) are equal and equal to the groove width of the mounting groove (7); the groove width is 0.2-0.5 times of the diameter of the cutter body (6), and the groove depth of the mounting groove (7) is 0.3-0.5 times of the diameter of the cutter body (6).
7. The multi-function clamping tool bar as claimed in claim 6, wherein the diameter of the central hole (2) is 0.1 to 0.4 times the diameter of the tool body (6), and the diameter of the inner cooling hole (9) is 0.05 to 0.2 times the diameter of the tool body (6).
8. The multifunctional clamping cutter bar as claimed in claim 7, wherein the gap bridge screw pin hole (8) penetrates through the two first positioning surfaces (101), the included angle between the axis of the gap bridge screw pin hole (8) and the first positioning surfaces (101) is 15-45 degrees, the included angle is parallel to the bottom surface (71), and the distance from the hole center of the gap bridge screw pin hole (8) to the bottom surface (71) is 0.2-0.4 times of the diameter of the cutter body (6).
9. The multi-functional clamping arbor according to claim 8, characterised in that the gap screw hole (8) comprises a threaded hole and a round pin hole, the threaded hole is located on one of the fixed blocks (10), and the round pin hole is located on the other fixed block (10); the diameter of the threaded hole is M2-M10, the diameter of the round pin hole is 0.1-0.3 times of the diameter of the cutter body (6), and the center line of the threaded hole is 0-0.2 mm higher than that of the round pin hole relative to the bottom surface (71).
10. The multi-function tool holding bar as claimed in any one of claims 1 to 9, wherein said multi-function tool holding bar is a clearance fit with the tool bit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123154733.5U CN216607354U (en) | 2021-12-15 | 2021-12-15 | Multifunctional clamping cutter bar |
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| CN202123154733.5U CN216607354U (en) | 2021-12-15 | 2021-12-15 | Multifunctional clamping cutter bar |
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| CN216607354U true CN216607354U (en) | 2022-05-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131084A (en) * | 2021-12-15 | 2022-03-04 | 无锡湾流精工科技有限公司 | Multifunctional clamping cutter bar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131084A (en) * | 2021-12-15 | 2022-03-04 | 无锡湾流精工科技有限公司 | Multifunctional clamping cutter bar |
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