CN112705744A - Boring cutter holder suitable for coaxial processing of inner circle and outer circle - Google Patents
Boring cutter holder suitable for coaxial processing of inner circle and outer circle Download PDFInfo
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- CN112705744A CN112705744A CN201911018362.2A CN201911018362A CN112705744A CN 112705744 A CN112705744 A CN 112705744A CN 201911018362 A CN201911018362 A CN 201911018362A CN 112705744 A CN112705744 A CN 112705744A
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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
- B23B29/24—Tool holders for a plurality of cutting tools, e.g. turrets
- B23B29/248—Tool holders for a plurality of cutting tools, e.g. turrets with individually adjustable toolholders
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Abstract
The invention provides a boring cutter holder suitable for coaxially processing an inner circle and an outer circle, which comprises a boring cutter holder body, an outer circle boring cutter, an inner hole boring cutter, a first fine tuning bolt and a second fine tuning bolt; the boring cutter seat body is provided with a first groove, a second groove, a third groove and a fourth groove, so that the boring cutter seat body is divided into three subareas, namely a first subarea, a second subarea and a third subarea; the inner hole boring cutter is arranged in the second subarea, and one end of the outer circle boring cutter is positioned in the first subarea; the first partition or the third partition is provided with a first fine adjustment bolt, the position of the first partition can be adjusted through the first fine adjustment bolt, the second partition or the third partition is provided with a second fine adjustment bolt, and the position of the second partition can be adjusted through the second fine adjustment bolt. The invention can efficiently finish the simultaneous processing of the excircle and the inner hole, can ensure the requirements of high dimensional accuracy and high coaxiality of the inner hole and the excircle, and is convenient to use.
Description
Technical Field
The invention relates to the field of machining, in particular to a boring cutter holder suitable for coaxial machining of an inner circle and an outer circle, and particularly relates to a coaxial machining device with ultra-interpolation precision and high precision of the inner circle and the outer circle.
Background
In the field of numerical control machining, the position accuracy of relevant machining features on parts is mainly ensured by the positioning accuracy and repeated positioning accuracy of a numerical control machining machine tool. For example, boring an outer circle and an inner hole on a part coaxial line on a machining center always needs to be carried out in two steps, for example, firstly boring the inner hole, 1) a boring cutter seat for machining the inner hole is clamped by a main shaft, a Y shaft and a Z shaft are positioned to the axial position of the inner hole to be machined, the Y shaft is locked, and the inner hole is fed and bored through the Z shaft; 2) after the inner hole is machined, the spindle moves to a tool changing position, a boring tool holder used for machining the outer circle is replaced, the Y shaft and the Z shaft are repeatedly positioned to the axis position of the inner hole, the Y shaft is locked, and the outer circle is fed and bored through the Z shaft.
Chinese patent publication No. CN200977559 discloses a machining tool for a concentric rod with an inner circle and an outer circle, which includes a positioning spindle, a tool post, a blade and a connecting plate, wherein the blade is fixed on the tool post through the tool body, the positioning spindle is fixed on the connecting plate through a lock nut, and an adjusting screw is arranged on the connecting plate. The utility model discloses a part hole and excircle of processing although can guarantee coaxial precision, nevertheless can't realize the simultaneous processing of hole and excircle, need constantly tool changing, troublesome poeration.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a boring cutter seat suitable for coaxial machining of an inner circle and an outer circle.
The boring cutter holder suitable for the coaxial processing of the inner circle and the outer circle comprises a boring cutter holder body, an outer circle boring cutter, an inner hole boring cutter, a first fine tuning bolt and a second fine tuning bolt;
the boring cutter holder body comprises a first end face, a second end face and a side face, and a first groove, a second groove, a third groove and a fourth groove are formed in the boring cutter holder body;
the first groove extends inwards from the first end surface of the boring cutter seat body, the second groove extends inwards from the side surface of the boring cutter seat body, the third groove extends inwards from the side surface of the boring cutter seat body and has the extending direction opposite to that of the second groove, and the fourth groove extends from the bottom of the third groove to the second end surface or extends inwards from the second end surface of the boring cutter seat body; the second groove is arranged close to the first end face, and the third groove is arranged close to the second end face;
the boring tool holder body is divided into three subareas by the first groove, the second groove, the third groove and the fourth groove, wherein the first groove, the second groove, the first end face and the side face of the boring tool holder body corresponding to the first groove enclose a first subarea, the third groove, the fourth groove, the second end face and the side face of the boring tool holder body corresponding to the second groove enclose a second subarea, and the rest of the first groove, the second groove, the third end face and the side face of the boring tool holder body corresponding to the second groove enclose a third subarea;
the inner hole boring cutter is arranged in the second subarea, and one end of the outer circle boring cutter is inserted from the second end face and enters the first subarea;
the first partition or the third partition is provided with a first fine adjustment bolt, the width of the first groove can be adjusted through the first fine adjustment bolt, and the second partition or the third partition is provided with a second fine adjustment bolt, and the width of the fourth groove can be adjusted through the second fine adjustment bolt.
Preferably, the outer circle boring cutter is arranged close to the first groove, the inner hole boring cutter is arranged close to the fourth groove, the turning directions of the inner hole boring cutter and the outer circle boring cutter are the same, and the inner hole boring cutter is located in the center of the second end face of the boring cutter seat body.
Preferably, the device further comprises a third fine adjustment bolt and a fourth fine adjustment bolt, wherein the third fine adjustment bolt is arranged on the third partition or the first partition, the third fine adjustment bolt is arranged opposite to the first fine adjustment bolt, the fourth fine adjustment bolt is arranged on the third partition or the second partition, and the fourth fine adjustment bolt is arranged opposite to the second fine adjustment bolt.
Preferably, the tail ends of the threaded rods of the first fine tuning bolt and the second fine tuning bolt are pointed tail ends, the first fine tuning bolt can move among the first partition, the first groove and the third partition, and the second fine tuning bolt can move among the second partition, the fourth groove and the third partition;
the threaded rod ends of the third fine-tuning bolt and the fourth fine-tuning bolt are flat-head ends, the third fine-tuning bolt can move between the first partition and the first groove or between the third partition and the first groove, and the fourth fine-tuning bolt can move between the second partition and the fourth groove or between the third partition and the fourth groove.
Preferably, the angle of the inner hole boring cutter can be adjusted through the first fine adjustment bolt and/or the third fine adjustment bolt, and the angle of the outer circle boring cutter can be adjusted through the second fine adjustment bolt and/or the fourth fine adjustment bolt.
Preferably, the boring tool further comprises a first positioning locking screw and a second positioning locking screw, the first positioning locking screw can lock the outer circle boring tool, and the second positioning locking screw can lock the inner hole boring tool.
Preferably, the first positioning locking screw is screwed into the first partition to lock the outer-circle boring cutter in the first partition, and the second positioning locking screw is screwed into the second partition to lock the inner-hole boring cutter in the second partition.
Preferably, the depth extension direction of the first groove is perpendicular to the first end surface, and the width direction of the first groove is perpendicular to the normal direction of the first end surface;
the depth extending direction of the second groove is parallel to the first end face, and the width extending direction of the second groove is parallel to the normal direction of the first end face;
the depth extending direction of the third groove is parallel to the second end surface, and the width extending direction of the fourth groove is parallel to the normal direction of the second end surface;
the depth extending direction of the fourth groove is perpendicular to the second end face, and the width extending direction of the fourth groove is perpendicular to the normal direction of the second end face.
Preferably, the outer circle boring cutter and/or the inner hole boring cutter can move along the axial direction of the boring cutter seat body.
Preferably, the boring cutter holder body is a revolving body, the boring cutter holder body is provided with mounting grooves at screwing points of a first fine tuning bolt, a second fine tuning bolt, a third fine tuning bolt, a fourth fine tuning bolt, a first positioning locking screw and a second positioning locking screw, and heads of the first fine tuning bolt, the second fine tuning bolt, the third fine tuning bolt, the fourth fine tuning bolt, the first positioning locking screw and the second positioning locking screw are located in the mounting grooves.
Compared with the prior art, the invention has the following beneficial effects:
1. the boring cutter holder suitable for coaxially processing the inner circle and the outer circle can efficiently process the outer circle and the inner hole simultaneously, can ensure the requirements of high dimensional accuracy and high coaxiality of the inner hole and the outer circle, and is convenient to use.
2. The boring cutter holder suitable for the coaxial processing of the inner circle and the outer circle provided by the invention only needs to monitor the size of the outer circle and can meet the tolerance of the inner hole in the processing process as long as the clearance is adjusted according to the tolerance requirements of the outer circle and the inner hole.
3. The boring cutter holder suitable for the coaxial processing of the inner circle and the outer circle can ensure that the quality of parts is more stable, and the outer circle boring cutter and the inner hole boring cutter are processed simultaneously, so that the vibration of processed parts can be effectively reduced, and the quality stability is improved.
4. The boring cutter holder suitable for the coaxial processing of the inner circle and the outer circle can also ensure good precision for processing softer materials, because the outer circle and the inner hole are processed simultaneously, the deformation of the outer circle and the deformation of the inner hole are synchronous, but the relative distance between the outer circle boring cutter and the inner hole boring cutter is not changed, the precision of the inner hole can be naturally formed as long as the precision of the outer circle is controlled, and processing errors caused by the deformation of the materials during processing can be avoided.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a front view of the present invention.
Fig. 2 is a rear view of the present invention.
Fig. 3 is a cross-sectional view taken along line C-C of fig. 1.
Fig. 4 is a cross-sectional view taken along line a-a of fig. 1.
Fig. 5 is a cross-sectional view taken along line B-B of fig. 1.
The figures show that:
1-boring cutter holder body 7-second positioning locking screw 12-third partition
2-first positioning locking screw 8-third fine-tuning bolt 13-first groove
3-first trimmer bolt 9-fourth trimmer bolt 14-second groove
4-second trimmer bolt 10-first zone 15-third groove
5-excircle boring cutter 11-second partition 16-fourth groove
6-inner hole boring cutter
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The invention relates to the field of high-precision coaxial machining of inner and outer circles in milling, is particularly suitable for high-precision coaxial machining of inner and outer circles of aerospace precision non-revolving body parts, and has reference significance for high-precision coaxial machining of precision parts in other fields.
The boring tool holder suitable for the coaxial processing of the inner circle and the outer circle, which is provided by the invention, comprises a boring tool holder body 1, an outer circle boring tool 5, an inner hole boring tool 6, a first fine adjustment bolt 3 and a second fine adjustment bolt 4, wherein the outer circle boring tool 5 is arranged on the boring tool holder body; the boring cutter seat body 1 comprises a first end face, a second end face and a side face, and a first groove 13, a second groove 14, a third groove 15 and a fourth groove 16 are formed in the boring cutter seat body 1; the first groove 13 extends inwards from the first end surface of the boring cutter holder body 1, the second groove 14 extends inwards from the side surface of the boring cutter holder body 1, the third groove 15 extends inwards from the side surface of the boring cutter holder body 1 and has the extending direction opposite to that of the second groove 14, and the fourth groove 16 extends inwards from the bottom of the third groove 15 to the second end surface or the fourth groove 16 extends inwards from the second end surface of the boring cutter holder body 1; the second grooves 14 are arranged close to the first end face, and the third grooves 15 are arranged close to the second end face; the boring tool holder body 1 is divided into three subareas by the first groove 13, the second groove 14, the third groove 15 and the fourth groove 16, wherein the first groove 13, the second groove 14, the first end surface and the side surface of the boring tool holder body 1 correspondingly surround the first subarea 10, the third groove 15, the fourth groove 16, the second end surface and the side surface of the boring tool holder body 1 correspondingly surround the second subarea 11, and the rest part is the third subarea 12; the inner hole boring cutter 6 is arranged in the second partition 11, and one end of the outer circle boring cutter 5 is inserted from the second end face and enters the first partition 10; the first partition 10 or the third partition 12 is provided with a first fine adjustment bolt 3, the width of the first groove 13 can be adjusted through the first fine adjustment bolt 3, the second partition 11 or the third partition 12 is provided with a second fine adjustment bolt 4, and the width of the fourth groove 16 can be adjusted through the second fine adjustment bolt 4. Through the design of the first groove 13 and the second groove 14, the first partition 10 has certain elasticity, when a pressure is applied from the side surface of the first partition 10 (i.e. the side surface corresponding to the boring cutter holder body 1 enclosing the first partition 10) to the inside of the boring cutter holder body 1, the extrusion width of the first groove 13 is reduced, the position of the first partition 10 is changed, because one end of the outer circle boring cutter 5 is positioned in the first partition 10, the position of the outer circle boring cutter 5 is also changed correspondingly, the first fine adjustment bolt 3 is arranged in the first partition 10 or the third partition 12, the stress of the first partition 10 is changed by screwing or unscrewing the first fine adjustment bolt 3, and therefore the function of adjusting the position of the outer circle boring cutter 5 is achieved. Similarly, through the design of the third groove 15 and the fourth groove 16, the second partition 11 has certain elasticity, when a pressure is applied from the side surface of the second partition 11 (i.e. the side surface corresponding to the boring holder body 1 enclosing the second partition 11) toward the interior of the boring holder body 1, the extrusion width of the fourth groove 16 is reduced, the position of the second partition 11 is changed, because one end of the inner hole boring tool 6 is located in the second partition 11, the position of the inner hole boring tool 6 is also changed correspondingly, the second fine adjustment bolt 4 is arranged in the second partition 11 or the third partition 12, the stress of the first partition 11 is changed by screwing or unscrewing the second fine adjustment bolt 4, and thus the function of adjusting the position of the inner hole boring tool 6 is achieved. When the fourth groove 16 extends from the bottom of the third groove 15 to the second end surface of the boring cutter holder body 1, in the initial state, the distance between the tip of the inner hole boring cutter 6 and the tip of the outer circle boring cutter 5 is the smallest, and when the second partition 11 is deviated towards the upper left under the stress condition or the first partition is deviated towards the upper right under the stress condition, the distance between the tip of the inner hole boring cutter 6 and the tip of the outer circle boring cutter 5 is increased. When the fourth groove 16 extends inwards from the second end surface of the boring cutter holder body 1, and when the distance between the cutter point of the inner hole boring cutter 6 and the cutter point of the outer circle boring cutter 5 needs to be reduced, the position of the outer circle boring cutter 5 only needs to be kept unchanged, and the second sub-area 11 is enabled to deflect towards the lower left under the stress condition; when the distance between the tool tip of the inner hole boring tool 6 and the tool tip of the outer circle boring tool 5 needs to be increased, the position of the inner hole boring tool 6 only needs to be kept unchanged, and the first partition 10 is enabled to deflect towards the upper right under the stress condition. The inner hole boring cutter 6 and the outer circle boring cutter 5 are arranged on the same boring cutter holder body 1, so that the inner hole and the outer circle can be machined without changing cutters, and the machining precision of the outer circle and the inner hole is improved.
The outer circle boring cutter 5 is arranged close to the first groove 13, the inner hole boring cutter 6 is arranged close to the fourth groove 16, the turning directions of the inner hole boring cutter 6 and the outer circle boring cutter 5 are the same, and the inner hole boring cutter 6 is located in the center of the second end face of the boring cutter seat body 1. Still include third fine setting bolt 8 and fourth fine setting bolt 9, be provided with third fine setting bolt 8 on third subregion 12 or the first subregion 10, third fine setting bolt 8 sets up with first fine setting bolt 3 relatively, be provided with fourth fine setting bolt 9 on third or the second subregion 11, fourth fine setting bolt 9 sets up with second fine setting bolt 4 relatively. The threaded rod tail ends of the first fine adjustment bolt 3 and the second fine adjustment bolt 4 are pointed tail ends, the first fine adjustment bolt 3 can move among the first partition 10, the first groove 13 and the third partition 12, and the second fine adjustment bolt 4 can move among the second partition 11, the fourth groove 16 and the third partition 12; the threaded ends of the third fine adjustment bolt 8 and the fourth fine adjustment bolt 9 are flat ends, the third fine adjustment bolt 8 can move between the first partition 10 and the first groove 13 or between the third partition 12 and the first groove 13, and the fourth fine adjustment bolt 9 can move between the second partition 11 and the fourth groove 16 or between the third partition 12 and the fourth groove 16. The angle of the inner hole boring cutter 6 can be adjusted through the first fine adjustment bolt 3 and/or the third fine adjustment bolt 8, and the angle of the outer circle boring cutter 5 can be adjusted through the second fine adjustment bolt 4 and/or the fourth fine adjustment bolt 9. When only the first fine adjustment bolt 3 and the second fine adjustment bolt 4 are arranged, the stress of the first partition 10 and the stress of the second partition 11 are changed by screwing in or screwing out the first fine adjustment bolt 3 and the second fine adjustment bolt 4, so that the widths of the first groove 13 and the fourth groove 16 are changed, and the effect of adjusting the angles of the outer circle boring cutter 5 and the inner hole boring cutter 6 is achieved. When the first fine tuning bolt 3 and the second fine tuning bolt 4 are arranged, and the third fine tuning bolt 8 and the fourth fine tuning bolt 9 are arranged, wherein the first fine tuning bolt 3 and the third fine tuning bolt 8 are screwed into the boring cutter holder body 1 from two opposite directions, the tail end of a threaded rod of the third fine tuning bolt 8 is positioned in the first groove 13, and because the tail end of the threaded rod of the third fine tuning bolt 8 is a flat-head tail end, the tail end can only move in a screwed partition (corresponding to one wall surface of the first groove 13) and the first groove 13, and cannot penetrate through a partition corresponding to the other wall surface of the first groove 13; the first fine-tuning bolt 3 is a subarea of which the tip end can penetrate through two wall surfaces of the first groove 13, the first subarea 10 is continuously close to the third subarea 12 (namely the width of the first groove 13 is continuously reduced) in the process of screwing the first fine-tuning bolt 3, when the flat-head end of the third fine-tuning bolt 8 is contacted with the other wall surface of the first groove 13, the first fine-tuning bolt 3 cannot continuously advance, the width of the first groove 13 is not reduced any more, and the angles and the distances of the outer circle boring cutter 5 and the inner hole boring cutter 6 are determined, so that the double-safety adjustment of the angles and the distances of the outer circle boring cutter 5 and the inner hole boring cutter 6 is realized, and the adjustment accuracy is improved; similarly, the second fine tuning bolt 4 and the fourth fine tuning bolt 9 are screwed into the boring tool apron body 1 from two opposite directions, the tail end of the threaded rod of the fourth fine tuning bolt 9 is positioned in the fourth groove 16, and because the tail end of the threaded rod of the fourth fine tuning bolt 9 is a flat head tail end, the tail end of the threaded rod can only move in the screwed partition (corresponding to one wall surface of the fourth groove 16) and the fourth groove 16 and cannot penetrate through the partition corresponding to the other wall surface of the fourth groove 16; the second fine adjustment bolt 4 is a subarea of which the tip end can penetrate through two wall surfaces of the fourth groove 16, the second subarea 11 is continuously close to the third subarea 12 (namely the width of the fourth groove 16 is continuously reduced) in the process of screwing the second fine adjustment bolt 4, when the tip end of the fourth fine adjustment bolt 9 contacts with the other wall surface of the fourth groove 16, the second fine adjustment bolt 4 cannot continuously advance, and the width of the fourth groove 16 is not reduced any more. Due to the structural design, the damage to the boring tool holder body 1 caused by the fact that the first fine tuning bolt 3 and the second fine tuning bolt 4 are screwed too much and exceed the force range which can be borne by the first partition 10 and the second partition 11 can be avoided, the excessive loss precision of wall surface adjustment can be achieved, and the safety function is achieved. The number of the first fine tuning bolts 3, the second fine tuning bolts 4, the third fine tuning bolts 8 and the fourth fine tuning bolts 9 can be selected according to actual needs, and the length of the third fine tuning bolts 8 screwed into the first grooves 13 and the length of the fourth fine tuning bolts 9 screwed into the fourth grooves 16 can be selected according to actual needs. An included angle is formed between the installation positions of the outer circle boring cutter 5 and the inner hole boring cutter 6, and the first fine tuning bolt 3 and the third fine tuning bolt 8 are arranged at one end, close to the outer circle boring cutter 5 and the inner hole boring cutter 6, of the outer circle boring cutter 5, so that the rough adjustment of the distance between the tool tips of the outer circle boring cutter 5 and the inner hole boring cutter 6 is realized; the second fine tuning bolt 4 and the fourth fine tuning bolt 9 are arranged at one end, far away from the outer circle boring cutter 5 and the inner hole boring cutter 6, so that the distance between the tool tips of the outer circle boring cutter 5 and the inner hole boring cutter 6 can be finely adjusted.
The outer circle boring cutter positioning device further comprises a first positioning locking screw 2 and a second positioning locking screw 7, the first positioning locking screw 2 can lock the outer circle boring cutter 5, and the second positioning locking screw 7 can lock the inner hole boring cutter 6. The first positioning locking screw 2 is screwed in from the first partition 10 to lock the outer circle boring cutter 5 in the first partition 10, and the second positioning locking screw 7 is screwed in from the second partition 11 to lock the inner hole boring cutter 6 in the second partition 11. Preferably, the number of the first fine tuning bolts 3 is 2, the first fine tuning bolts are uniformly distributed on two sides of the first positioning locking screw 2, the connecting line of the 2 first fine tuning bolts 3 is perpendicular to the normal direction of the first end face, and the third fine tuning bolts 8 are arranged in one-to-one correspondence with the first fine tuning bolts 3; the number of the second fine tuning bolts 4 is 2, the second fine tuning bolts are evenly distributed on two sides of the second positioning locking screw 3, the connecting line of the two second fine tuning bolts 4 is perpendicular to the normal direction of the second end face, and the fourth fine tuning bolts 9 are arranged in one-to-one correspondence with the second fine tuning bolts 4. The symmetrical structural design is beneficial to more accurately controlling the distance between the tool tip of the inner hole boring tool 6 and the tool tip of the outer circle boring tool 5.
The depth extending direction of the first groove 13 is perpendicular to the first end surface, and the width direction of the first groove 13 is perpendicular to the normal direction of the first end surface; the depth extending direction of the second groove 14 is parallel to the first end surface, and the width extending direction of the second groove 14 is parallel to the normal direction of the first end surface; the depth extension direction of the third groove 15 is parallel to the second end surface, and the width extension direction of the fourth groove 16 is parallel to the normal direction of the second end surface; the depth extension direction of the fourth groove 16 is perpendicular to the second end surface, and the width extension direction of the fourth groove 16 is perpendicular to the normal direction of the second end surface.
The outer circle boring cutter 5 and/or the inner hole boring cutter 6 can move along the axial direction of the boring cutter seat body 1. The boring cutter holder body 1 is a revolving body, mounting grooves are formed in screwing points of the boring cutter holder body 1, namely a first fine tuning bolt 3, a second fine tuning bolt 4, a third fine tuning bolt 8, a fourth fine tuning bolt 9, a first positioning locking screw 2 and a second positioning locking screw 7, and the heads of the first fine tuning bolt 3, the second fine tuning bolt 4, the third fine tuning bolt 8, the fourth fine tuning bolt 9, the first positioning locking screw 2 and the second positioning locking screw 7 are located in the mounting grooves, so that the revolving surface of the boring cutter holder body 1 is smooth. Preferably, the boring holder body 1 is a cylinder.
The preferred embodiment:
the boring tool holder suitable for the coaxial processing of the inner circle and the outer circle, as shown in fig. 1-5, comprises a boring tool holder body 1, a first positioning locking screw 2, a second positioning locking screw 7, a first fine adjustment bolt 3, a second fine adjustment bolt 4, a third fine adjustment bolt 8, a fourth fine adjustment bolt 9, an outer circle boring tool 5 and an inner hole boring tool 6. The boring cutter holder body 1 comprises a rotary structure, a fine adjustment structure and a positioning and locking structure.
The rotary structure, namely the boring tool holder body 1, is cylindrical, and the boring tool holder body comprises a handle part for clamping and parts for installing an inner hole boring tool 6 and an outer circle boring tool 5. The tool points of the excircle boring tool 5 and the inner hole boring tool 6 are oppositely arranged on the boring tool holder body 1.
The boring cutter holder body 1 comprises a revolution surface, a first end surface and a second end surface, the fine adjustment structure is that a first groove 13, a second groove 14, a third groove 15 and a fourth groove 16 are formed in the revolution surface, the first end surface and the second end surface of the boring cutter holder body 1, and the grooves enable the local structure of the boring cutter holder body 1, on which the excircle boring cutter 6 and the inner hole boring cutter 5 are mounted, to be elastic. Fine adjustment threaded holes are further formed in the revolution surface of the boring cutter holder body 1, and fine adjustment of angles of the outer circle boring cutter 5 and the inner hole boring cutter 6 is achieved by screwing the first fine adjustment bolt 3, the second fine adjustment bolt 4, the third fine adjustment bolt 8 and the fourth fine adjustment bolt 9 into and out of the fine adjustment threaded holes. Wherein the angle of the outer circle boring cutter 5 is adjusted by screwing or unscrewing the first fine tuning bolt 3 and the third fine tuning bolt 8, and the angle of the inner hole boring cutter 6 is adjusted by screwing or unscrewing the second fine tuning bolt 4 and the fourth fine tuning bolt 9. The angles of the excircle boring cutter 5 and the inner hole boring cutter 6 are finely adjusted, so that the machining sizes of the excircle and the inner hole are adjusted. The local structures of the outer circle boring cutter 5 and the inner hole boring cutter 6 are installed at two positions by adopting fine adjustment measures of double-bolt drawing and double-bolt supporting.
The positioning and locking structure is characterized in that positioning and locking screw mounting holes are formed in corresponding positions of a rotary surface of the boring cutter seat body 1 to mount a first positioning and locking screw 2 and a second positioning and locking screw 7, and the outer circle boring cutter 5 and the inner hole boring cutter 6 are positioned and locked through the first positioning and locking screw 2 and the second positioning and locking screw 7. The processing technology is characterized in that an inner hole boring cutter 6 and an outer circle boring cutter 5 are arranged on the same boring cutter holder body 1, and are arranged in the same direction and different sides, so that the processing of an inner hole and an outer circle can be completed without changing cutters, and the processing coaxiality precision of the outer circle and the inner hole is improved. The front tool surfaces of the inner hole boring cutter 6 and the outer circle boring cutter 5 in the same-direction opposite-side machining process are consistent in direction, the tool tips point to the characteristics of parts to be machined, and one of the inner hole boring cutter 6 and the outer circle boring cutter 5 is a left-hand tool, and the other is a right-hand tool. By the structural design, the inner hole boring cutter 6 and the outer circle boring cutter 5 can be separated from the machining surface of the part without interference after one-time boring feeding machining is finished, and then the cutters are withdrawn. By the method, the requirement of high dimensional accuracy of the excircle and the inner hole of the part can be met, and the influence of positive and negative feeding of the main shaft on high-accuracy machining can be avoided.
When the fine adjustment device is used, the outer circle boring cutter 5 and the inner hole boring cutter 6 are respectively installed on the boring cutter seat body 1, the outer circle boring cutter 5 and the inner hole boring cutter 6 are respectively fixed through the first positioning locking screw 2 and the second positioning locking screw 7, and then the first fine adjustment bolt 3, the second fine adjustment bolt 4, the third fine adjustment bolt 8 and the fourth fine adjustment bolt 9 are adjusted according to the sizes of the outer circle and the inner hole of a part to achieve fine adjustment of the angles of the inner hole boring cutter 6 and the outer circle boring cutter 5.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A boring cutter holder suitable for coaxially processing an inner circle and an outer circle is characterized by comprising a boring cutter holder body (1), an outer circle boring cutter (5), an inner hole boring cutter (6), a first fine tuning bolt (3) and a second fine tuning bolt (4);
the boring cutter holder body (1) comprises a first end face, a second end face and a side face, and a first groove (13), a second groove (14), a third groove (15) and a fourth groove (16) are formed in the boring cutter holder body (1);
the first groove (13) extends inwards from the first end surface of the boring cutter holder body (1), the second groove (14) extends inwards from the side surface of the boring cutter holder body (1), the third groove (15) extends inwards from the side surface of the boring cutter holder body (1) and has the extending direction opposite to that of the second groove (14), and the fourth groove (16) extends inwards from the bottom of the third groove (15) to the second end surface or the fourth groove (16) extends inwards from the second end surface of the boring cutter holder body (1); the second groove (14) is arranged close to the first end face, and the third groove (15) is arranged close to the second end face;
the boring tool holder body (1) is divided into three subareas by the first groove (13), the second groove (14), the third groove (15) and the fourth groove (16), wherein the first groove (13), the second groove (14), the first end face and the side face corresponding to the boring tool holder body (1) enclose a first subarea (10), the third groove (15), the fourth groove (16), the second end face and the side face corresponding to the boring tool holder body (1) enclose a second subarea (11), and the rest parts are third subareas (12);
the inner hole boring cutter (6) is arranged in the second subarea (11), and one end of the outer circle boring cutter (5) is inserted into the first subarea (10) from the second end face;
the width that is provided with first fine setting bolt (3) and first recess (13) on first subregion (10) or third subregion (12) can be adjusted through first fine setting bolt (3), and the width that is provided with second fine setting bolt (4) and fourth recess (16) on second subregion (11) or third subregion (12) can be adjusted through second fine setting bolt (4).
2. The boring cutter holder suitable for the coaxial processing of the inner circle and the outer circle according to claim 1, wherein the outer circle boring cutter (5) is arranged close to the first groove (13), the inner hole boring cutter (6) is arranged close to the fourth groove (16), the turning directions of the inner hole boring cutter (6) and the outer circle boring cutter (5) are the same, and the inner hole boring cutter (6) is positioned at the center of the second end face of the boring cutter holder body (1).
3. The boring cutter holder suitable for the inner and outer circle coaxial machining according to claim 1, further comprising a third fine adjustment bolt (8) and a fourth fine adjustment bolt (9), wherein the third fine adjustment bolt (8) is arranged on the third partition (12) or the first partition (10), the third fine adjustment bolt (8) is arranged opposite to the first fine adjustment bolt (3), the fourth fine adjustment bolt (9) is arranged on the third partition or the second partition (11), and the fourth fine adjustment bolt (9) is arranged opposite to the second fine adjustment bolt (4).
4. The boring cutter holder suitable for inner and outer circle coaxial machining according to claim 3, characterized in that the threaded rod ends of the first and second fine tuning bolts (3, 4) are pointed ends, the first fine tuning bolt (3) is movable among the first partition (10), the first groove (13) and the third partition (12), and the second fine tuning bolt (4) is movable among the second partition (11), the fourth groove (16) and the third partition (12);
the threaded rod ends of the third fine adjustment bolt (8) and the fourth fine adjustment bolt (9) are flat-head ends, the third fine adjustment bolt (8) can move between the first partition (10) and the first groove (13) or between the third partition (12) and the first groove (13), and the fourth fine adjustment bolt (9) can move between the second partition (11) and the fourth groove (16) or between the third partition (12) and the fourth groove (16).
5. The boring cutter holder suitable for inner and outer circle coaxial processing according to claim 1 or 3, characterized in that the angle of the bore boring cutter (6) can be adjusted by a first fine adjustment bolt (3) and/or a third fine adjustment bolt (8), and the angle of the outer circle boring cutter (5) can be adjusted by a second fine adjustment bolt (4) and/or a fourth fine adjustment bolt (9).
6. The boring cutter holder suitable for the coaxial processing of the inner circle and the outer circle of the claim 1 is characterized by further comprising a first positioning locking screw (2) and a second positioning locking screw (7), wherein the first positioning locking screw (2) can lock the outer circle boring cutter (5), and the second positioning locking screw (7) can lock the inner hole boring cutter (6).
7. The boring cutter holder suitable for inner and outer circle coaxial machining according to claim 1, characterized in that the first positioning and locking screw (2) is screwed in from the first partition (10) to lock the outer circle boring cutter (5) in the first partition (10), and the second positioning and locking screw (7) is screwed in from the second partition (11) to lock the inner hole boring cutter (6) in the second partition (11).
8. The boring holder suitable for inner and outer circle coaxial machining according to claim 1, wherein the depth extension direction of the first groove (13) is perpendicular to the first end surface, and the width direction of the first groove (13) is perpendicular to the normal direction of the first end surface;
the depth extension direction of the second groove (14) is parallel to the first end surface, and the width extension direction of the second groove (14) is parallel to the normal direction of the first end surface;
the depth extension direction of the third groove (15) is parallel to the second end surface, and the width extension direction of the fourth groove (16) is parallel to the normal direction of the second end surface;
the depth extension direction of the fourth groove (16) is vertical to the second end surface, and the width extension direction of the fourth groove (16) is vertical to the normal direction of the second end surface.
9. The boring holder suitable for coaxial machining of inner and outer circles according to claim 1, characterized in that the outer circle boring tool (5) and/or the inner hole boring tool (6) are movable in the boring holder body (1) in their axial direction.
10. The boring tool holder suitable for inner and outer circle coaxial machining according to claim 4, wherein the boring tool holder body (1) is a revolving body, mounting grooves are formed in screwing points of the first fine tuning bolt (3), the second fine tuning bolt (4), the third fine tuning bolt (8), the fourth fine tuning bolt (9), the first positioning locking screw (2) and the second positioning locking screw (7) of the boring tool holder body (1), and heads of the first fine tuning bolt (3), the second fine tuning bolt (4), the third fine tuning bolt (8), the fourth fine tuning bolt (9), the first positioning locking screw (2) and the second positioning locking screw (7) are located in the mounting grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911018362.2A CN112705744B (en) | 2019-10-24 | 2019-10-24 | Boring cutter holder suitable for coaxial processing of inner circle and outer circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911018362.2A CN112705744B (en) | 2019-10-24 | 2019-10-24 | Boring cutter holder suitable for coaxial processing of inner circle and outer circle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112705744A true CN112705744A (en) | 2021-04-27 |
| CN112705744B CN112705744B (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911018362.2A Active CN112705744B (en) | 2019-10-24 | 2019-10-24 | Boring cutter holder suitable for coaxial processing of inner circle and outer circle |
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| Country | Link |
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| CN (1) | CN112705744B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114012120A (en) * | 2021-11-12 | 2022-02-08 | 富曜半导体(昆山)有限公司 | Adjustable center tool apron for numerical control turning and using method thereof |
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| Publication number | Publication date |
|---|---|
| CN112705744B (en) | 2022-05-31 |
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