CN112872487B - Combined cutter bar for chamfering - Google Patents

Combined cutter bar for chamfering Download PDF

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Publication number
CN112872487B
CN112872487B CN202110043808.8A CN202110043808A CN112872487B CN 112872487 B CN112872487 B CN 112872487B CN 202110043808 A CN202110043808 A CN 202110043808A CN 112872487 B CN112872487 B CN 112872487B
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China
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blade
tool
groove
mounting
tool apron
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CN112872487A (en
Inventor
刘振才
苏晓龙
陈俊磊
倪顺霞
曹国彬
李二生
吴学军
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Henan Pinggao Electric Co Ltd
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Henan Pinggao Electric Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D79/00Methods, machines, or devices not covered elsewhere, for working metal by removal of material

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Milling Processes (AREA)

Abstract

The invention provides a combined cutter bar for chamfering, which comprises: a knife handle; the first tool apron is used for mounting a first blade; the second tool apron is used for mounting a second blade, and the second tool apron and the first tool apron are arranged at intervals along the axial direction of the tool shank; be provided with the first mounting groove that is used for installing first blade on the first blade holder, be provided with the second mounting groove that is used for installing the second blade on the second blade holder, first mounting groove and second mounting groove are the right angle groove, and the right angle groove includes that two are the side channel wall that certain contained angle set up and be used for the same and fixed laminating wall of laminating with the blade shape, and the planar intersect at two side channel walls place is perpendicular with the axis of handle of a knife, and the plane at laminating wall place is parallel with the axis of handle of a knife. The shape of the attaching walls on the two tool holders is the same as that of the blade, so that a larger contact area can be provided, the fixing effect of the blade is improved, the stress effect of the blade is improved, and the deformation or damage of the blade is reduced.

Description

Combined cutter bar for chamfering
Technical Field
The invention relates to the technical field of chamfering, in particular to a combined cutter bar for chamfering.
Background
The valve seat part generally has a 30-degree guide angle, as shown in fig. 1, which is a valve seat 100 in the prior art, six 30-degree guide angles need to be processed in an inner hole of the valve seat 100, wherein three guide angles have the same inclination direction, one group is formed, two groups are formed, and the inclination directions of the two groups are different, so that when the six guide angles are processed, two different chamfering processing tools are needed, three guide angles are processed first, and then another tool is used to process the remaining three guide angles. However, the cutter changing process of the cutter needs a certain time, which not only is troublesome to operate, but also causes the machining equipment to be in a pause state, thereby increasing the machining time, and reducing the machining efficiency of parts and the utilization rate of the machining equipment.
To this end, chinese utility model patent with publication number CN206662306U discloses a compound chamfering tool, which comprises a tool holder, a tool post and four blades, wherein two blades are mounted on an upper mounting seat, the other two blades are mounted on a lower mounting seat, and the blades are distributed on two sides of the tool post axis in a two-to-two symmetrical manner.
Although two blades above and two blades below among the four blades can respectively process chamfers with different inclination angles, half of the four blades are suspended outside the cutter holder, so that the fixing and stress effects of the blades are poor, and the blades are easy to deform or damage. And the blade is two liang of symmetrical arrangement, and in actual processing process, each blade is rotatory along same direction, and this can make one of them in two blades paste the blade holder more, and the other receives the power of peeling off the blade holder, consequently can't guarantee the stability of blade at all in the actual processing process, and the blade is out of shape easily or breaks away from the blade holder, influences normal processing production.
Disclosure of Invention
The invention aims to provide a combined cutter bar for chamfering, which aims to solve the problems that half of a cutter blade in the prior art is suspended outside a cutter holder, so that the fixing and stress effects of the cutter blade are poor, and the cutter blade is easy to deform or damage.
In order to achieve the purpose, the combined cutter bar for chamfering adopts the following technical scheme:
a kind of chamfer processes and uses the combination cutter arbor, including:
a knife handle;
the first tool apron is used for installing a first blade with a first cutting angle;
the second tool apron is used for mounting a second blade with a second cutting angle, and the second tool apron and the first tool apron are arranged at intervals along the axial direction of the tool shank;
be provided with the first mounting groove that is used for installing first blade on the first blade holder, be provided with the second mounting groove that is used for installing the second blade on the second blade holder, first mounting groove and second mounting groove are the right angle groove, and the right angle groove includes that two are the side channel wall that certain contained angle set up and be used for with the blade shape the same and with the fixed laminating wall of blade laminating, two planar intersecting lines in side channel wall place are perpendicular with the axis of handle of a knife, the plane at laminating wall place is parallel with the axis of handle of a knife.
The beneficial effects of the above technical scheme are that: according to the invention, the first mounting groove on the first cutter seat and the second mounting groove on the second cutter seat are right-angle grooves, each right-angle groove comprises two side groove walls and a joint wall, each joint wall is used for being jointed and fixed with the corresponding blade, and the joint wall and the corresponding blade are the same in shape, so that a larger contact area can be provided, the fixing effect of the blades is improved, the stress effect of the blades is improved, and the deformation or damage of the blades is reduced. Meanwhile, the intersection line of the planes of the two side groove walls is perpendicular to the axis of the cutter handle, and the plane of the attaching wall is parallel to the axis of the cutter handle, so that the blade is convenient to mount and fix, and the cutting edge of the blade can be chamfered.
Further, in order to improve machining efficiency, guarantee simultaneously that the atress of blade all pastes tight blade holder more, guarantee the stability of blade, avoid the blade to warp or break away from the blade holder, first mounting groove and second mounting groove are equipped with two respectively, two first mounting grooves are in the setting of the circumference equipartition of first blade holder, and the orientation of the laminating wall of two first mounting grooves is opposite, two second mounting grooves are in the setting of the circumference equipartition of second blade holder, and the orientation of the laminating wall of two second mounting grooves is also opposite.
Further, in order to make the atress of whole combination cutter arbor more even, improve the life of combination cutter arbor, the plane at the laminating wall place of two first mounting grooves is parallel and interval arrangement, and the plane at the laminating wall place of two second mounting grooves is also parallel and interval arrangement.
Furthermore, in order to make the layout more reasonable and the stress more uniform, the plane where the attaching wall of the first mounting groove is located is perpendicular to the plane where the attaching wall of the second mounting groove is located.
Furthermore, in order to facilitate the installation of the blade, the corners between the two side groove walls of the right-angle groove are processed with an avoiding groove for avoiding the edge angle of the blade.
Furthermore, in order to facilitate the assembly and disassembly of the blade, the attaching wall is provided with a threaded hole for fixing the blade.
Furthermore, in order to enable the structure to be compact and the design to be more reasonable, the first tool apron is provided with two first end faces which are arranged on two sides of the axis of the tool holder in parallel, the second tool apron is provided with two second end faces which are arranged on two sides of the axis of the tool holder in parallel, and the first end faces are perpendicular to the second end faces.
Further, for the installation of convenient blade to conveniently avoid the processing in groove, the processing of corner between two side cell walls in right angle groove has the groove of dodging that is used for dodging the blade edges and corners, dodges on the first blade holder groove and extends to first terminal surface, dodges on the second blade holder groove and extends to the second terminal surface.
Furthermore, in order to facilitate the assembly and disassembly of the blade and the machining of a threaded hole, the attaching wall is provided with a threaded hole for fixing the blade, the threaded hole in the first tool apron penetrates through the first end face, and the threaded hole in the second tool apron penetrates through the second end face.
Drawings
FIG. 1 is a block diagram of a valve seat of the prior art;
FIG. 2 is a perspective view of a view of the assembled tool holder for chamfering;
FIG. 3 is a perspective view of another perspective view of the composite tool bar for chamfering according to the present invention;
FIG. 4 is a front view of the assembled tool bar for chamfering according to the present invention;
FIG. 5 is a left side view of the assembled tool bar for chamfering according to the present invention;
FIG. 6 is a right side view of the composite tool bar for chamfering according to the present invention;
FIG. 7 is a plan view of the composite tool holder for chamfering according to the present invention.
In the figure: 100-valve seat; 1-a knife handle; 2-a first tool apron; 21-a first side groove wall; 22-a first conformable wall; 23-a first avoidance slot; 24-a first threaded hole; 25-a first end face; 3-a second tool apron; 31-a second side slot wall; 32-a second conformable wall; 33-a second avoidance groove; 34-a second threaded hole; 35-second end face.
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 the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
One embodiment of the combined tool bar for chamfering (hereinafter referred to as combined tool bar) according to the present invention is shown in fig. 2 and 3, and includes a tool holder 1, a first tool rest 2, and a second tool rest 3, the second tool rest 3 and the first tool rest 2 are arranged at intervals along an axial direction of the tool holder 1, and the second tool rest 3 is located at an end portion of the combined tool bar.
The first tool apron 2 is used for mounting a first blade (not shown in the figure) with a first cutting angle, specifically, a first mounting groove for mounting the first blade is arranged on the first tool apron 2, the first mounting groove is a right-angle groove, and as shown in fig. 4, 5 and 6, the right-angle groove on the first tool apron 2 comprises two first side groove walls 21 which are arranged at a certain included angle and a first joint wall 22 which is used for being identical to the first blade in shape and fixedly jointed with the first blade, and as the first joint wall 22 is identical to the first blade in shape, a larger contact area can be provided, so that the fixing effect of the blade is improved, the stress effect of the blade is improved, and the deformation or damage of the blade is reduced. Meanwhile, the intersection line of the planes of the two first side groove walls 21 is perpendicular to the axis of the cutter handle 1, and the plane of the first attaching wall 22 is parallel to the axis of the cutter handle 1, so that the blade is convenient to mount and fix, and the cutting edge of the blade can be chamfered.
Further, in order to improve the processing efficiency, two first blades are provided, so that two first mounting grooves are provided, the two first mounting grooves are uniformly distributed in the circumferential direction of the first tool apron 2, and as shown in fig. 7, the orientations of the first attaching walls 22 of the two first mounting grooves are opposite, so that when the combined tool bar rotates in one direction to perform chamfering processing, the two first blades are tightly attached to the first tool apron 2 under the stress, the stability of the blades is ensured, and the blades are prevented from being deformed or separated from the tool apron. Meanwhile, the planes of the first attaching walls 22 of the two first mounting grooves are parallel and arranged at intervals, so that the stress of the whole combined cutter bar is more uniform, and the service life of the combined cutter bar is prolonged.
In addition, as shown in fig. 2 to 6, the first tool apron 2 has two first end faces 25 which are arranged on two sides of the axis of the tool holder in parallel, a first avoiding groove 23 for avoiding the edge angle of the blade is processed at a corner between two first side groove walls 21 of the first tool apron 2, and the first avoiding groove 23 extends to the first end face 25, so that the first blade is convenient to mount. In addition, the first fitting wall 22 is provided with a first threaded hole 24 for fixing the blade, so that the first blade is convenient to assemble and disassemble, and the first threaded hole 24 penetrates through the first end surface 25, so that the processing is convenient.
The second tool seat 3 is used for mounting a second insert (not shown in the figures) with a second cutting angle, and the whole structure of the second tool seat 3 is equivalent to that of the first tool seat 2 which is rotated by 90 degrees. Specifically, be provided with the second mounting groove that is used for installing the second blade on the second blade holder 3, the second mounting groove also is the right angle groove, combine fig. 2~ 6 to show, right angle groove on the second blade holder 3 includes that two are the second side cell wall 31 of certain contained angle setting and be used for with the second blade shape the same and with the fixed second laminating wall 32 of second blade laminating, because second laminating wall 32 is the same with second blade shape, can provide great area of contact like this, thereby improve the fixed effect of blade, improve the atress effect of blade, reduce the deformation or the damage of blade. Meanwhile, the intersection line of the planes of the two second side groove walls 31 is perpendicular to the axis of the cutter handle 1, and the plane of the second attaching wall 32 is parallel to the axis of the cutter handle 1, so that the blade is convenient to mount and fix, and the cutting edge of the blade can be chamfered.
Further, in order to improve the processing efficiency, the second blade is also provided with two, therefore the second mounting grooves are provided with two, two second mounting grooves are uniformly distributed in the circumferential direction of the second tool apron 3, and as shown in fig. 7, the orientations of the second attaching walls 32 of the two second mounting grooves are opposite, so that when the combined tool bar rotates towards one direction to perform chamfering processing, the stress of the two second blades are all more closely attached to the second tool apron 3, the stability of the blade is ensured, and the blade is prevented from being deformed or separated from the tool apron.
Meanwhile, as shown in fig. 7, the planes of the second attaching walls 32 of the two second mounting grooves are parallel and arranged at intervals, and the plane of the first attaching wall 22 of the first mounting groove is perpendicular to the plane of the second attaching wall 32 of the second mounting groove, so that the stress of the whole combined cutter bar is more uniform, and the service life of the combined cutter bar is prolonged.
As shown in fig. 2 to 6, the second tool apron 3 has two second end surfaces 35 arranged in parallel on both sides of the axis of the tool holder, and the second end surfaces 35 are perpendicular to the first end surfaces 25. The corner processing between two second side cell walls 31 on the second blade holder 3 has the second groove 33 of dodging that dodges the blade edges and corners, and the second groove 33 of dodging extends to second terminal surface 35 to the installation of second blade has been made things convenient for. In addition, the first attaching wall 22 is provided with a second threaded hole 34 for fixing the blade, so that the second blade is convenient to assemble and disassemble, and the second threaded hole 34 penetrates through the second end surface 35, so that the processing is convenient.
When the combined cutter bar is used, the combined cutter bar is provided with four blades, two first blades form a group, the first cutting angle is formed, and chamfering processing in an inclined direction can be performed. Two second blades become another group, have the second cutting angle, can carry out the chamfer processing of another incline direction, consequently only need install once the cutter on the processing equipment and can carry out the chamfer processing of different incline directions, saved the tool changing time, the operation is simplified greatly, can improve the machining efficiency of part and the utilization ratio of processing equipment.
Preferably, the combined cutter bar of the invention is used in a machining center, for example, when a valve seat is machined, the size specification of the valve seat is relatively large, so that the combined cutter bar with the outer diameter far smaller than the diameter of an inner hole of the valve seat can be manufactured, and the machining of a large-hole-diameter chamfer in the valve seat is realized through the rotation and the revolution of the combined cutter bar along a certain track during machining. Meanwhile, because a plurality of chamfers need to be processed in the valve seat, the chamfers at different positions can be processed by using one group of blades at one time, for example, when two first blades are used, two second blades are positioned in a groove of an inner hole of the valve seat and cannot be contacted with the inner wall of the valve seat, and smooth cutting of the first blades is ensured.
In other embodiments of the combined tool bar for chamfering, the threaded hole in the second tool apron may not penetrate through the second end face, and the threaded hole in the first tool apron may not penetrate through the first end face, and the threaded holes are blind holes.
In other embodiments of the combined tool bar for chamfering, the avoidance groove on the first tool rest may not extend to the first end surface, and the avoidance groove on the second tool rest may not extend to the second end surface.
In other embodiments of the combined tool holder for chamfering, the first tool apron may not have two parallel first end surfaces, for example, the outer periphery of the first tool apron may be an arc surface, and the second tool apron may not have two parallel second end surfaces, for example, the outer periphery of the second tool apron may be an arc surface.
In other embodiments of the combined cutter bar for chamfering, the joint walls of the two cutter holders can be provided with bolt through holes instead of threaded holes, and bolts penetrate through the cutter blades and the cutter holders and are fixedly connected with nuts to fix the cutter blades.
In other embodiments of the combined tool bar for chamfering, the avoidance grooves may not be machined in both tool holders.
In other embodiments of the combined tool bar for chamfering, the plane of the joint wall of the first mounting groove and the plane of the joint wall of the second mounting groove may not be perpendicular, but have an included angle of other than 90 degrees.
In other embodiments of the combined tool bar for chamfering, the planes of the attachment walls of the two first mounting grooves can be coplanar, and the planes of the attachment walls of the two second mounting grooves can also be coplanar.
In other embodiments of the combined tool bar for chamfering, when there is one first insert and one second insert, there is only one first mounting groove and only one second mounting groove, respectively.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims (6)

1. A kind of chamfer processes and uses the combination cutter arbor, including:
a knife handle;
the first tool apron is used for installing a first blade with a first cutting angle;
the second tool apron is used for mounting a second blade with a second cutting angle, and the second tool apron and the first tool apron are arranged at intervals along the axial direction of the tool shank;
the tool is characterized in that a first mounting groove for mounting a first blade is formed in the first tool apron, a second mounting groove for mounting a second blade is formed in the second tool apron, the first mounting groove and the second mounting groove are right-angle grooves, each right-angle groove comprises two side groove walls which are arranged at a certain included angle and a joint wall which is used for being identical to the shape of the blade and being fixedly jointed with the blade, the intersection line of the planes of the two side groove walls is perpendicular to the axis of the tool holder, and the plane of the joint wall is parallel to the axis of the tool holder;
the two first mounting grooves are uniformly distributed in the circumferential direction of the first tool apron, the directions of the joint walls of the two first mounting grooves are opposite, the two second mounting grooves are uniformly distributed in the circumferential direction of the second tool apron, and the directions of the joint walls of the two second mounting grooves are opposite;
the plane where the attaching wall of the first mounting groove is located is vertical to the plane where the attaching wall of the second mounting groove is located;
the first tool apron is provided with two first end faces which are arranged on two sides of the axis of the tool holder in parallel, the second tool apron is provided with two second end faces which are arranged on two sides of the axis of the tool holder in parallel, and the first end faces are perpendicular to the second end faces.
2. The combined tool bar for chamfering according to claim 1, wherein the planes of the attachment walls of the two first mounting grooves are parallel and spaced apart, and the planes of the attachment walls of the two second mounting grooves are also parallel and spaced apart.
3. The combined tool bar for chamfering according to claim 1 or 2, wherein an avoiding groove for avoiding a corner of the blade is formed at a corner between two side groove walls of the right-angle groove.
4. The gang tool holder for chamfering according to claim 1 or 2, wherein a screw hole for fixing the blade is provided in the abutment wall.
5. The assembled cutter bar for chamfering according to claim 1, wherein an avoiding groove for avoiding a corner of the blade is formed at a corner between two side groove walls of the right-angle groove, the avoiding groove on the first cutter holder extends to the first end face, and the avoiding groove on the second cutter holder extends to the second end face.
6. The tool bar as claimed in claim 1, wherein the abutment wall has a threaded hole for fixing the blade, the threaded hole of the first tool seat extends through the first end surface, and the threaded hole of the second tool seat extends through the second end surface.
CN202110043808.8A 2021-01-13 2021-01-13 Combined cutter bar for chamfering Active CN112872487B (en)

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CN112872487B true CN112872487B (en) 2022-09-06

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09207007A (en) * 1996-01-31 1997-08-12 Mitsubishi Materials Corp Throw-away chip with honing
DE19800029A1 (en) * 1997-12-13 1999-06-24 Rothenberger Werkzeuge Ag Chamfering tool for tubular workpieces
CN102601446A (en) * 2012-02-23 2012-07-25 西安交通大学 Rotary precision rod tube feeding machine with alternating-current servo efficient and controllable feeding function
CN203031006U (en) * 2013-01-16 2013-07-03 郑州市钻石精密制造有限公司 Chamfering tool
CN208147049U (en) * 2018-04-18 2018-11-27 东莞明利钢材模具制品有限公司 The process tool of accurate swaging die
CN208811223U (en) * 2018-05-18 2019-05-03 四川融至精密机械有限公司 VVT valve pocket annular groove knife

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206662306U (en) * 2017-03-30 2017-11-24 浙江辛子精工机械股份有限公司 A kind of compound chamfers cutter
CN210817621U (en) * 2019-09-29 2020-06-23 宁波三韩合金材料有限公司 Cutter for milling groove and plane simultaneously
CN210967023U (en) * 2019-12-10 2020-07-10 哈尔滨第一机械集团有限公司 Chamfering tool for simultaneously machining double faces of parts with irregular shapes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09207007A (en) * 1996-01-31 1997-08-12 Mitsubishi Materials Corp Throw-away chip with honing
DE19800029A1 (en) * 1997-12-13 1999-06-24 Rothenberger Werkzeuge Ag Chamfering tool for tubular workpieces
CN102601446A (en) * 2012-02-23 2012-07-25 西安交通大学 Rotary precision rod tube feeding machine with alternating-current servo efficient and controllable feeding function
CN203031006U (en) * 2013-01-16 2013-07-03 郑州市钻石精密制造有限公司 Chamfering tool
CN208147049U (en) * 2018-04-18 2018-11-27 东莞明利钢材模具制品有限公司 The process tool of accurate swaging die
CN208811223U (en) * 2018-05-18 2019-05-03 四川融至精密机械有限公司 VVT valve pocket annular groove knife

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