CN112643070A - Independent fine adjustment type fine boring cutter and machining process thereof - Google Patents
Independent fine adjustment type fine boring cutter and machining process thereof Download PDFInfo
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- CN112643070A CN112643070A CN202011452544.3A CN202011452544A CN112643070A CN 112643070 A CN112643070 A CN 112643070A CN 202011452544 A CN202011452544 A CN 202011452544A CN 112643070 A CN112643070 A CN 112643070A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/30—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools lathes or like tools
Abstract
The invention provides an independent fine adjustment type fine boring cutter and a processing technology thereof, comprising the following steps: roughly processing stainless steel into a cutter body rod and other parts; carrying out heat treatment on other parts of the cutter body rod; tin bronze is inlaid on the surfaces of the cutter body bar and other parts after heat treatment, and the cutter body bar and the other parts are sent to a coreless grinding step; after polishing, the cutter body rod and other parts are conveyed to a finish turning end of a lathe for finish machining; the cutter body bar and other parts after finish machining are sent to a middle wire moving machine tool for middle wire moving machining, and the required shape is cut; after machining, carrying out CNC machining on the cutter body rod and other parts, and then carrying out secondary coreless grinding on the cutter body rod; after the secondary coreless grinding is finished, the cutter body rod and other parts are sent to a precise numerical control lathe for tooth matching; assembling the machined cutter body rod and other parts into a fine boring cutter; through multi-channel high-precision machining and two-channel coreless grinding, the high-precision fine-adjustment fine boring cutter with the machining aperture of 9.8-16.2 mm is produced, and meanwhile, the fine-adjustment fine boring cutter is connected in a thread M3-0.25 tooth mode, so that the fine-adjustment precision of the fine boring cutter can reach 0.005 mm.
Description
Technical Field
The invention relates to the technical field of numerical control machine tools, in particular to an independent fine adjustment type fine boring cutter and a machining process thereof.
Background
In the technical field of numerical control machine tool machining, a boring cutter is a key part for machining and is a boring cutter; the existing boring cutter is usually a fixed integrated boring cutter, and the cutter is single and cannot adjust the range of boring size; the depth of the boring hole is not controllable, so that the application range is limited greatly. With the continuous development of machining technology, the numerical control machine tool is more and more widely used in machining, the shapes and the structures of mechanical parts are more and more complex, and the required precision is higher and higher.
In the prior art, the precision of the used boring cutter is low, and the precision range of the hole diameter processed by the boring cutter is generally difficult to realize below 16mm, so that people are rarely used in the field of boring cutter processing with the hole diameter below 16 mm.
Disclosure of Invention
Aiming at the defects in the technology, the invention provides the independent fine-adjustment type fine boring cutter and the processing technology thereof, the high-precision fine-adjustment type fine boring cutter with the processing aperture of 9.8-16.2 mm is produced through a plurality of high-precision processing and two coreless grinding technologies, and meanwhile, the fine-adjustment precision of the fine boring cutter can reach 0.005mm through the connection in a thread M3-0.25 thread mode.
In order to achieve the above object, the present invention provides an independent fine tuning type fine boring tool, comprising:
the mounting channel is arranged along the radial direction of the main body, one end of the mounting channel is provided with a baffle ring, the other end of the mounting channel extends upwards along the radial direction of the mounting channel to form a clamping groove, and two sides of the mounting channel are communicated with locking screw holes;
the tool apron comprises a seat body and a tool bit which extend integrally, the tool bit is connected with a blade, one part of the tool bit and the blade is clamped in the clamping groove, and the other part of the tool bit and the blade protrudes outwards from the clamping groove along the axial direction of the main body;
the sliding seat is sleeved in the mounting channel in a sliding manner, and one end of the sliding seat is connected with the seat body;
the adjusting nut is sleeved in the sliding seat in a threaded manner;
the rotating shaft is sleeved in the adjusting nut in a threaded manner;
the adjusting nut is screwed and fixed in the sliding seat, and the rotating shaft is rotatably connected with the adjusting nut and is connected with the adjusting nut in a thread M0.125-0.25 tooth mode.
Specifically, the method comprises the following steps: the pivot is kept away from the one end of blade holder is equipped with the calibrated scale, the calibrated scale is for a plurality of scales according to circumferencial direction evenly separated.
Preferably, the method comprises the following steps: the dial rotates 1 scale control the blade holder is followed the axial direction of installation passageway removes 0.005 mm's distance, the dial rotates the round control the blade holder is followed the axial direction of installation passageway removes 0.25 mm's distance.
Specifically, the method comprises the following steps: the aperture processing range of the independent fine-tuning type fine boring cutter is 9.8 mm-16.2 mm.
Preferably, the method comprises the following steps: the independent fine adjustment type fine boring cutter comprises three types of precision specifications: the first fine boring cutter with the aperture processing range of 9.8-12.2 mm, the second fine boring cutter with the aperture processing range of 11.8-14.2 and the third fine boring cutter with the aperture processing range of 13.8-16.2 mm.
A process for machining an independent fine-tuning fine boring tool, which is used for machining the independent fine-tuning fine boring tool according to any one of claims 1 to 5, and comprises the following steps:
roughly machining a required main body and other parts by using stainless steel as a material;
heat treating the main body and other parts until the hardness reaches 60 HRC;
tin bronze is inlaid on the surfaces of the main body and other parts after heat treatment, and the main body and the other parts are sent to a coreless grinding step for grinding;
after polishing, the main body and other parts are sent to a finish turning end of a lathe for finish machining, and an installation channel, a baffle ring, a clamping groove and a locking screw hole are machined in the main body; the other parts are processed into a tool apron, a sliding seat, an adjusting nut and a rotating shaft;
the main body, the tool apron, the sliding seat, the adjusting nut and the rotating shaft which are finished by finish machining are sent to a middle wire feeding machine tool to carry out middle wire feeding machining, so that the precision of the workpiece is cut and improved;
after machining, carrying out CNC machining on the main body and other parts, machining a seat body and a tool bit by using the tool apron, drilling holes on the sliding seat, the adjusting nut and the rotating shaft, and carrying out secondary coreless grinding on the main body and other parts after machining;
after the secondary coreless grinding is finished, conveying the sliding seat, the adjusting nut and the rotating shaft to a precise numerical control lathe for matching teeth, wherein the matching thread M is 0.125-0.25 tooth;
mounting the machined slide seats on the tool apron and mounting the slide seats in the mounting channel of the main body together; and the adjusting nut is screwed and fixed in the sliding seat, and the rotating shaft is rotatably connected with the adjusting nut and is connected with the adjusting nut in a thread M0.125-0.25 tooth mode.
Specifically, the method comprises the following steps: after polishing, the main body and other parts are sent to a finish turning end of a lathe for finish machining, and an installation channel, a baffle ring, a clamping groove and a locking screw hole are machined in the main body; in the step of other parts processing for blade holder, slide, adjusting nut and pivot, other parts still include processing out the calibrated scale, the calibrated scale evenly separates according to the circumferencial direction and processes out a plurality of scales.
Preferably, the method comprises the following steps: the rotating shaft is connected with the adjusting nut in a thread M3 x 0.25 tooth mode, so that the dial plate rotates by 1 scale to control the tool apron to move by 0.005mm in the axial direction of the mounting channel, and the dial plate rotates by one circle to control the tool apron to move by 0.25mm in the axial direction of the mounting channel.
Specifically, the method comprises the following steps: the independent fine adjustment type fine boring cutter comprises three independent fine adjustment type fine boring cutters with different precision specifications, and the aperture processing range of the independent fine adjustment type fine boring cutter is 9.8 mm-16.2 mm.
Preferably, the method comprises the following steps: three independent fine-tuning type fine boring cutters with different precision specifications are respectively as follows: the first fine boring cutter with the aperture processing range of 9.8-12.2 mm, the second fine boring cutter with the aperture processing range of 11.8-14.2 and the third fine boring cutter with the aperture processing range of 13.8-16.2 mm.
The invention has the beneficial effects that: compared with the prior art, the independent fine adjustment type fine boring cutter and the processing technology thereof provided by the invention comprise the following steps: roughly machining a required main body and other parts by using stainless steel as a material; heat treating the main body and other parts until the hardness reaches 60 HRC; tin bronze is inlaid on the surfaces of the main body and other parts after heat treatment, and the main body and the other parts are sent to a coreless grinding step for grinding; after polishing, the main body and other parts are sent to a finish turning end of a lathe for finish machining, and an installation channel, a baffle ring, a clamping groove and a locking screw hole are machined in the main body; the other parts are processed into a tool apron, a sliding seat, an adjusting nut and a rotating shaft; the main body, the tool apron, the sliding seat, the adjusting nut and the rotating shaft which are finished by finish machining are sent to a middle wire feeding machine tool to carry out middle wire feeding machining, so that the precision of the workpiece is cut and improved; after machining, carrying out CNC machining on the main body and other parts, machining a seat body and a tool bit by using the tool apron, drilling holes on the sliding seat, the adjusting nut and the rotating shaft, and carrying out secondary coreless grinding on the main body and other parts after machining; after the secondary coreless grinding is finished, conveying the sliding seat, the adjusting nut and the rotating shaft to a precise numerical control lathe for matching teeth, wherein the matching thread M is 0.125-0.25 tooth; mounting the machined slide seats on the tool apron and mounting the slide seats in the mounting channel of the main body together; screwing and fixing an adjusting nut in the sliding seat, wherein the rotating shaft is rotatably connected with the adjusting nut and is connected with the adjusting nut in a thread M0.125-0.25 tooth mode; the high-precision fine-adjustment fine boring cutter with the aperture of 9.8-16.2 mm can be produced through multiple high-precision machining and two coreless grinding processes, and meanwhile, the fine-adjustment fine boring cutter is connected in a thread M3-0.25 tooth mode, so that the fine-adjustment precision of the fine boring cutter can reach 0.005 mm.
Drawings
FIG. 1 is a three-dimensional view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a process flow diagram of the present invention;
FIG. 5 is a schematic view of a boring tool with a machining range of 9.8mm to 12.2 mm;
FIG. 6 is a schematic view of a boring tool with a machining range of 11.8mm to 14.2 mm;
FIG. 7 is a schematic view of a boring tool with a machining range of 13.8 mm-16.2 mm.
The main element symbols are as follows:
1. a main body; 11. installing a channel; 12. a baffle ring; 13. a card slot; 14. locking the screw hole; 2. a tool apron; 21. a cutter head; 22. a base body; 3. a slide base; 4. adjusting the nut; 5. a rotating shaft; 6. a dial.
Detailed Description
In order to more clearly describe the present invention, the present invention will be further described with reference to the accompanying drawings.
In the prior art, the precision of the used boring cutter is low, and the precision range of the hole diameter processed by the boring cutter is generally difficult to realize below 16mm, so that people are rarely used in the field of boring cutter processing with the hole diameter below 16 mm.
In order to overcome the defects and shortcomings in the prior art, the present invention specifically provides an independent fine-tuning type fine boring tool and a processing technique thereof, referring to fig. 1-3, the boring tool comprises:
the main body 1 comprises an installation channel 11 arranged along the radial direction of the main body 1, one end of the installation channel 11 is provided with a baffle ring 12, the other end of the installation channel 11 extends upwards along the radial direction of the installation channel 11 to form a clamping groove 13, and two sides of the installation channel 11 are communicated with locking screw holes 14;
the tool apron 2 comprises a seat body 22 and a tool bit 21 which extend integrally, the tool bit 21 is connected with a blade, one part of the tool bit 21 and the blade is clamped in the clamping groove 13, and the other part of the tool bit 21 and the blade protrudes outwards from the clamping groove 13 along the axial direction of the main body 1;
the sliding seat 3 is sleeved in the installation channel 11 in a sliding manner, and one end of the sliding seat 3 is connected with the seat body 22;
the adjusting nut 4 is sleeved in the sliding seat 3 in a threaded manner;
the rotating shaft 5 is sleeved in the adjusting nut 4 in a threaded manner and is connected with the adjusting nut 4 in a threaded manner of M0.125-0.25 teeth; the rotating shaft 5 is in threaded connection with the adjusting nut 4, the adjusting nut 4 is in threaded connection with the sliding seat 3, and the sliding seat 3 and the tool apron 2 are pushed by the rotating shaft 5 to move along the axial direction of the installation channel 11 so as to adjust the tool bit 21; the adaptive size range of the boring cutter is changed, the boring cutter is connected in a thread M3-0.25 tooth mode to move axially, the moving amount is small, the adjustment is convenient, and the adjustment precision is high; the blade and a part of the cutter body are clamped in the clamping groove 13, so that the stability is improved, and the machining precision is ensured; an anti-seismic rod is detachably connected to the general main body 1 in the axial direction, a connecting rod extends from the main body 1 to the anti-seismic rod, and the connecting rod is sleeved in the anti-seismic rod in a threaded manner; wherein the anti-vibration rod is connected with the cutter body by a screw thread M8 x 1.5 mode.
In the present embodiment, mention is made of: a dial 6 is arranged at one end of the rotating shaft 5, which is far away from the tool apron 2, and the dial 6 is evenly divided into 50 scales along the circumferential direction; the 50 scales can ensure that the movement amount of the user for one time adjustment is small, the adjustment is convenient according to the scales, and the adjustment precision is high; an elastic sheet is arranged between the stop ring 12 on the general rotating shaft 5 and the dial 6 and is used for enhancing the fastening and anti-loosening effect; and a fastening nut is sleeved on the rotating shaft between the adjusting nut and the baffle ring and is used for fastening the adjusted rotating shaft.
In a preferred embodiment, mention is made of: the dial 6 rotates 1 scale to control the tool apron 2 to move 0.005mm in the axial direction of the mounting channel 11, and the dial 6 rotates one circle to control the tool apron 2 to move 0.25mm in the axial direction of the mounting channel 11; the axial moving distance of the rotating shaft 5 which rotates one turn is 0.25mm by connecting the rotating shaft by the screw thread M3 with 0.25 tooth, and the moving distance of the rotating shaft which rotates one scale is 0.005mm because the scale plate 6 is equally divided into 50 scales in the circumferential direction, thereby controlling the processing range of the cutter head 21 with high precision.
The invention also provides a processing technology of the independent fine adjustment type fine boring cutter, which is used for processing the independent fine adjustment type fine boring cutter and refers to fig. 4, and the technology comprises the following steps:
roughly machining a required main body and other parts by using stainless steel as a material;
heat treating the main body and other parts until the hardness reaches 60 HRC;
tin bronze is inlaid on the surfaces of the main body and other parts after heat treatment, and the main body and the other parts are sent to a coreless grinding step for grinding;
after polishing, the main body and other parts are sent to a finish turning end of a lathe for finish machining, and an installation channel, a baffle ring, a clamping groove and a locking screw hole are machined in the main body; the other parts are processed into a tool apron, a sliding seat, an adjusting nut and a rotating shaft;
the main body, the tool apron, the sliding seat, the adjusting nut and the rotating shaft which are finished by finish machining are sent to a middle wire feeding machine tool to carry out middle wire feeding machining, so that the precision of the workpiece is cut and improved;
after machining, carrying out CNC machining on the main body and other parts, machining a seat body and a tool bit by using the tool apron, drilling holes on the sliding seat, the adjusting nut and the rotating shaft, and carrying out secondary coreless grinding on the main body and other parts after machining;
after the secondary coreless grinding is finished, conveying the sliding seat, the adjusting nut and the rotating shaft to a precise numerical control lathe for matching teeth, wherein the matching thread M is 0.125-0.25 tooth;
mounting the machined slide seats on the tool apron and mounting the slide seats in the mounting channel of the main body together; and the adjusting nut is screwed and fixed in the sliding seat, and the rotating shaft is rotatably connected with the adjusting nut and is connected with the adjusting nut in a thread M0.125-0.25 tooth mode.
Referring to fig. 5-7, before the machining process is performed, three types of finish boring cutter drawings with different aperture machining specifications are designed according to the required machining precision requirement, the finish boring cutters with the three different specifications realize the aperture machining of 9.8 mm-16.2 mm, and the machining process performs machining according to the precision requirement of the finish boring cutters with different machining specifications; the two coreless grinding steps are used for improving the machining precision of the workpiece; the tin bronze is bronze taking tin as a main alloy element, the tin content is generally 3-14%, the tin bronze is mainly used for manufacturing elastic elements and wear-resistant parts, the tin content of the deformed tin bronze is not more than 8%, and elements such as phosphorus, lead, zinc and the like are sometimes added; phosphorus is a good deoxidizer, and can also improve the fluidity and the wear resistance, lead can improve the machinability and the wear resistance in tin bronze, zinc can improve the casting performance, the alloy has higher mechanical property, antifriction performance and corrosion resistance, the alloy is easy to cut and process, the brazing and welding performance is good, the coefficient of contraction is small, the alloy is nonmagnetic, and coatings such as bronze bushings, shaft sleeves, antimagnetic elements and the like can be prepared by wire flame spraying and electric arc spraying; the tin-inlaid bronze can ensure long service life, and has good cost performance and high oxidation and corrosion resistance.
In the present embodiment, mention is made of: the fine boring cutter comprises three fine boring cutters with different precision specifications, and the aperture processing range of the fine boring cutter is 9.8 mm-16.2 mm; in the prior art, few people are involved in the field of processing the aperture below 16mm by using a fine boring cutter, multiple times of head changing processing is often required for processing the aperture between 9.8mm and 16.2mm in the prior art, the processing is very inconvenient, and the aperture processing in different ranges between 9.8mm and 16.2mm is realized by arranging 3 kinds of fine boring heads with different processing aperture specifications.
In a preferred embodiment, mention is made of: the three types of finish boring cutters with different precision specifications respectively comprise: the first fine boring cutter with the aperture processing range of 9.8-12.2 mm, the second fine boring cutter with the aperture processing range of 9.8-12.2 mm and the third fine boring cutter with the aperture processing range of 13.8-16.2 mm are arranged between the first fine boring cutter and the second fine boring cutter; the specifications of the first fine boring cutter, the second fine boring cutter and the third fine boring cutter produced by the process are different, and the specifications and the precision of the fine boring cutters are changed according to the required machining aperture range; the first fine boring tool can machine a hole with a minimum aperture of 9.8mm, and the third fine boring tool can machine a hole with a maximum aperture of 16.2.
In this embodiment: in the step of carrying out heat treatment on the cutter body rod, the hardness of the cutter body rod after heat treatment reaches 60 HRC; the quenching temperature is 1020-1040 ℃, the tempering temperature is 250-270 ℃, the hardness after tempering can reach HRC 58-60, and the hardness of the part can reach 60HRC through the heat treatment mode; the requirement on the hardness of parts is high because the boring head is used for machining.
In a preferred embodiment, mention is made of: after the secondary coreless grinding is finished, the cutter body rod and other parts are sent to a precise numerical control lathe for tooth matching, wherein the other parts comprise an adjusting nut 4 and a rotating shaft 5, and the tooth matching of the adjusting nut 4 and the rotating shaft 5 is a thread M3 x 0.25; the thread M3 is matched with 0.25 tooth by a precise numerical control lathe, the adjusting structure of the rotating shaft 5 with high adjusting precision is mainly formed, the rotating shaft 5 is connected in a thread M3 0.25 tooth mode to move axially, the moving amount is small, the adjustment is convenient, the adjusting precision is high, the axial moving distance of the rotating shaft 5 rotating for one circle is ensured to be 0.25mm, the dial 6 is equally divided into 50 scales in the circumferential direction, the moving distance of the rotating shaft rotating for one scale is 0.005mm, and the processing range of the cutter head 21 is controlled with high precision.
In a preferred embodiment, mention is made of: in the step of sending the cutter body rod to a finish turning end of a lathe for finish machining after polishing, the finish turning machining precision can reach IT 8-IT 6 level, the surface roughness Ra can reach 1.6-0.8 mu m, and the corresponding requirements of the dimensional tolerance and the slide tolerance surface roughness of a machined part can be ensured through the machining of the finish turning end; the finish machining mainly meets the whole size and technical requirements of parts, the semi-finish machining and the finish machining should select smaller cutting depth and feeding amount as much as possible, and the cutting speed is high; the finish turning requires small cutting depth and small feed amount, and after the finish turning is finished, the diameter geometry of the workpiece is qualified, and the requirement on the roughness of the surface is high.
In a preferred embodiment, mention is made of: in the step of roughly machining the required cutter body rod by using the stainless steel rod as a material, the stainless steel is made of 4Cr13 stainless steel; the 4Cr13 stainless steel is a martensite stainless steel, and has excellent comprehensive mechanical property due to large austenite content; therefore, the material is also commonly used for parts, tools and medical appliances in various constructional engineering; 4Cr13 has higher hardness than 3Cr13 after quenching and good corrosion resistance; the chemical composition of 4Cr13 is generally: c, carbon C: 0.36 to 0.45; silicon Si: less than or equal to 0.60; manganese Mn: less than or equal to 0.80; s, sulfur: less than or equal to 0.030; phosphorus P: less than or equal to 0.035; chromium Cr: 12.00 to 14.00; nickel Ni: the allowable content is less than or equal to 0.60.
The invention has the advantages that:
1. and (3) producing the high-precision fine-tuning fine boring cutter with the aperture of 9.8-16.2 mm by multiple high-precision machining and two coreless grinding processes.
2. Meanwhile, the fine boring cutter is connected in a thread M3-0.25 thread mode, so that the fine adjustment precision of the fine boring cutter can reach 0.005 mm.
The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (10)
1. An independent fine adjustment type fine boring cutter is characterized by comprising:
the mounting channel is arranged along the radial direction of the main body, one end of the mounting channel is provided with a baffle ring, the other end of the mounting channel extends upwards along the radial direction of the mounting channel to form a clamping groove, and two sides of the mounting channel are communicated with locking screw holes;
the tool apron comprises a seat body and a tool bit which extend integrally, the tool bit is connected with a blade, one part of the tool bit and the blade is clamped in the clamping groove, and the other part of the tool bit and the blade protrudes outwards from the clamping groove along the axial direction of the main body;
the sliding seat is sleeved in the mounting channel in a sliding manner, and one end of the sliding seat is connected with the seat body;
the adjusting nut is sleeved in the sliding seat in a threaded manner;
the rotating shaft is sleeved in the adjusting nut in a threaded manner;
the adjusting nut is screwed and fixed in the sliding seat, and the rotating shaft is rotatably connected with the adjusting nut and is connected with the adjusting nut in a thread M0.125-0.25 tooth mode.
2. The precision boring tool of claim 1, wherein a dial is provided at an end of the rotary shaft away from the tool holder, and the dial is uniformly divided into a plurality of scales in a circumferential direction.
3. The precision boring tool of claim 2, wherein the dial is rotated by 1 scale to control the tool holder to move a distance of 0.005mm in the axial direction of the mounting passage, and the dial is rotated by one turn to control the tool holder to move a distance of 0.25mm in the axial direction of the mounting passage.
4. The independent fine tuning type fine boring tool according to claim 1, wherein the aperture processing range of the independent fine tuning type fine boring tool is 9.8 mm-16.2 mm.
5. The independent fine tuning fine boring tool according to claim 1, wherein the independent fine tuning fine boring tool comprises three different precision specifications: the hole diameter processing range of the first fine boring cutter is 9.8 mm-12.2 mm, the hole diameter processing range of the second fine boring cutter is 11.8 mm-14.2 mm, and the hole diameter processing range of the third fine boring cutter is 13.8 mm-16.2 mm.
6. A process for machining an independently fine-tuned fine boring tool, for machining an independently fine-tuned fine boring tool according to any one of claims 1 to 5, comprising the steps of:
roughly machining a required main body and other parts by using stainless steel as a material;
heat treating the main body and other parts until the hardness reaches 60 HRC;
tin bronze is inlaid on the surfaces of the main body and other parts after heat treatment, and the main body and the other parts are sent to a coreless grinding step for grinding;
after polishing, the main body and other parts are sent to a finish turning end of a lathe for finish machining, and an installation channel, a baffle ring, a clamping groove and a locking screw hole are machined in the main body; the other parts are processed into a tool apron, a sliding seat, an adjusting nut and a rotating shaft;
the main body, the tool apron, the sliding seat, the adjusting nut and the rotating shaft which are finished by finish machining are sent to a middle wire feeding machine tool to carry out middle wire feeding machining, so that the precision of the workpiece is cut and improved;
after machining, carrying out CNC machining on the main body and other parts, machining a seat body and a tool bit by using the tool apron, drilling holes on the sliding seat, the adjusting nut and the rotating shaft, and carrying out secondary coreless grinding on the main body and other parts after machining;
after the secondary coreless grinding is finished, conveying the sliding seat, the adjusting nut and the rotating shaft to a precise numerical control lathe for matching teeth, wherein the matching thread M is 0.125-0.25 tooth;
mounting the machined slide seats on the tool apron and mounting the slide seats in the mounting channel of the main body together; and the adjusting nut is screwed and fixed in the sliding seat, and the rotating shaft is rotatably connected with the adjusting nut and is connected with the adjusting nut in a thread M0.125-0.25 tooth mode.
7. The process for machining the independent fine-tuning type fine boring cutter as claimed in claim 6, wherein after grinding, the main body and other parts are sent to a finish turning end of a lathe for finish machining, and the main body is provided with an installation channel, a stop ring, a clamping groove and a locking screw hole; in the step of other parts processing for blade holder, slide, adjusting nut and pivot, other parts still include processing out the calibrated scale, the calibrated scale evenly separates according to the circumferencial direction and processes out a plurality of scales.
8. The process for machining the independent fine-tuning type fine boring cutter as claimed in claim 7, wherein the finished slide seats are mounted on the cutter seat and are mounted together in a mounting channel of the main body; and screwing and fixing an adjusting nut in the sliding seat, wherein the rotating shaft is rotatably connected with the adjusting nut and is connected with the adjusting nut in a thread M0.125-0.25 tooth mode, the rotating shaft is connected with the adjusting nut in a thread M3 0.25 tooth mode, the dial is rotated by 1 scale to control the tool apron to move by 0.005mm in the axial direction of the installation channel, and the dial is rotated by one circle to control the tool apron to move by 0.25mm in the axial direction of the installation channel.
9. The machining process of the independent fine adjustment type fine boring cutter according to claim 6, wherein the independent fine adjustment type fine boring cutter comprises three independent fine adjustment type fine boring cutters with different precision specifications, and the aperture machining range of the independent fine adjustment type fine boring cutter is 9.8 mm-16.2 mm.
10. The process for machining the independent fine adjustment type fine boring cutter according to claim 9, wherein the three independent fine adjustment type fine boring cutters with different precision specifications are respectively as follows: the hole diameter processing range of the first fine boring cutter is 9.8 mm-12.2 mm, the hole diameter processing range of the second fine boring cutter is 11.8 mm-14.2 mm, and the hole diameter processing range of the third fine boring cutter is 13.8 mm-16.2 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210646A (en) * | 2021-06-01 | 2021-08-06 | 东莞刃峰数控刀具有限公司 | Fine-adjustment type rough boring cutter for rough machining and machining process thereof |
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| CN201120474Y (en) * | 2007-12-13 | 2008-09-24 | 上海松德数控刀具制造有限公司 | Single-blade fine tuning precision boring knife |
| CN106984841A (en) * | 2017-05-25 | 2017-07-28 | 宁波丹德瑞精密机械科技有限公司 | A kind of high precision fine tuning fine boring cutter |
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| CN109434720A (en) * | 2018-12-26 | 2019-03-08 | 贵州凯星液力传动机械有限公司 | A kind of processing tool and method of cutter |
| CN209139850U (en) * | 2018-11-05 | 2019-07-23 | 宁波卡勒普自动化有限公司 | A kind of improved ultrahigh precision micrometer adjustement boring tool |
| CN210498413U (en) * | 2019-08-01 | 2020-05-12 | 东莞刃峰数控刀具有限公司 | Novel fine-adjustment numerical control fine boring cutter |
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2020
- 2020-12-12 CN CN202011452544.3A patent/CN112643070B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201120474Y (en) * | 2007-12-13 | 2008-09-24 | 上海松德数控刀具制造有限公司 | Single-blade fine tuning precision boring knife |
| CN106984841A (en) * | 2017-05-25 | 2017-07-28 | 宁波丹德瑞精密机械科技有限公司 | A kind of high precision fine tuning fine boring cutter |
| CN107008929A (en) * | 2017-05-25 | 2017-08-04 | 宁波丹德瑞精密机械科技有限公司 | A kind of coarse-fine composite integrated boring cutter |
| CN209139850U (en) * | 2018-11-05 | 2019-07-23 | 宁波卡勒普自动化有限公司 | A kind of improved ultrahigh precision micrometer adjustement boring tool |
| CN109434720A (en) * | 2018-12-26 | 2019-03-08 | 贵州凯星液力传动机械有限公司 | A kind of processing tool and method of cutter |
| CN210498413U (en) * | 2019-08-01 | 2020-05-12 | 东莞刃峰数控刀具有限公司 | Novel fine-adjustment numerical control fine boring cutter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210646A (en) * | 2021-06-01 | 2021-08-06 | 东莞刃峰数控刀具有限公司 | Fine-adjustment type rough boring cutter for rough machining and machining process thereof |
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| CN112643070B (en) | 2022-08-19 |
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