CN114029517A - Inner hole machining tool capable of automatically removing chips - Google Patents
Inner hole machining tool capable of automatically removing chips Download PDFInfo
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- CN114029517A CN114029517A CN202111458565.0A CN202111458565A CN114029517A CN 114029517 A CN114029517 A CN 114029517A CN 202111458565 A CN202111458565 A CN 202111458565A CN 114029517 A CN114029517 A CN 114029517A
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- 238000003754 machining Methods 0.000 title claims abstract description 28
- 238000005520 cutting process Methods 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims description 16
- 238000010008 shearing Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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Classifications
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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
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/32—Chip breaking or chip evacuation
- B23B2200/328—Details of chip evacuation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention discloses an inner hole machining tool capable of automatically removing chips, and relates to the technical field of machining tools. Provided is an inner hole machining tool which can forcibly discharge chips automatically by cutting. The cutter comprises a cutter bar and a blade connected to the front end of the cutter bar; the device also comprises a conveying structure, a chip breaking plate and a chip guiding cover; the cutter bar is provided with a chip guide hole and a lead-in hole, and cutting generated by processing the cutter blade can enter the chip guide hole through the lead-in hole; the chip leading-out cover is connected to the rear end of the cutter rod and is provided with a radial leading-out hole; the chip breaking plate is arranged on the wall surface of the leading-in hole; the conveying structure comprises a conveying shaft, a chip breaking blade and a conveying blade; the conveying shaft is positioned in the chip guide hole, the front end of the conveying shaft is arranged at the front end of the cutter bar, and the rear part of the conveying shaft is arranged on the chip guide cover and penetrates through the chip guide cover; the chip breaking blade is connected with the conveying shaft and corresponds to the chip breaking plate in position, and chips can be conveyed backwards through the chip breaking blade; the conveying blade is connected to a conveying shaft between the chip breaking blade and the chip guide-out cover.
Description
Technical Field
The invention relates to the technical field of machining tools, in particular to an inner hole machining tool capable of automatically removing chips.
Background
When a deep hole is machined by a lathe, chips generated by machining are not easy to discharge. The vertical lathe is used for turning large and heavy workpieces, when the vertical deep blind hole is turned by the vertical lathe, chips need to be moved upwards to be discharged, the chips are difficult to automatically move upwards to be discharged, and the chips are more difficult to discharge. Unsmooth chip removal can cause the surface of a machined workpiece to be damaged by chips, and the surface quality is poor; the problems that the cutter abrades the furniture, the cutting resistance of the machine tool is increased and the like can also be caused.
According to the knowledge of the applicant, at present, no turning tool capable of solving the chip removal problem of deep hole turning, particularly the chip removal problem of a vertical turning deep blind hole is available. Sometimes, for chip removal, the original blind hole can only be processed into a through hole, so that the chips can be discharged downwards, and then the end part of the through hole is blocked, which obviously greatly increases the processing cost of the workpiece.
The Chinese patent application with the application number of 201910988397.2 discloses an indexable turning tool with a chip removal dredging structure, which comprises a turning blade main body, wherein the outline of the horizontal section of the turning blade main body is square; four cutting edges are arranged at the outer edges of four sides of the square blade, negative chamfers are arranged on the main cutting edge and the auxiliary cutting edge, a conical protruding part is built on a rake face between the main cutting edge and the auxiliary cutting edge, and grooves are formed from the conical protruding part to the cutting edge parts on two sides respectively to serve as chip removal grooves. The turning tool has the functions of dredging cuttings and facilitating the discharge of the cuttings. However, the turning tool is mainly suitable for turning tools for processing excircles, the chip removal capability of the turning tool is far insufficient for turning inner holes, and the turning tool can be applied to vertical turning of blind holes with chips needing to move upwards.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provided is an inner hole machining tool which can forcibly discharge chips automatically by cutting.
The technical scheme adopted for solving the problems is as follows: the inner hole machining tool capable of automatically discharging chips comprises a tool bar and a blade connected to the front end of the tool bar; the device also comprises a conveying structure, a chip breaking plate and a chip guiding cover; the cutter bar is provided with a chip guide hole and a chip guide hole, the chip guide hole is arranged along the axial direction of the cutter bar, the chip guide hole extends from the front part of the cutter bar to the rear end of the cutter bar, the chip guide hole is close to the blade, the chip guide hole extends from the side surface of the cutter bar to the chip guide hole, and cutting generated by processing the blade can enter the chip guide hole through the chip guide hole; the chip leading-out cover is connected to the rear end of the cutter bar, and a radial leading-out hole is formed in the chip leading-out cover and communicated with the chip leading-out hole; the chip breaking plate is arranged on the wall surface of the leading-in hole;
the conveying structure comprises a conveying shaft, a chip breaking blade and a conveying blade; the conveying shaft and the chip guide hole are coaxially arranged and are positioned in the chip guide hole, the front end of the conveying shaft is arranged at the front end of the cutter bar, the rear part of the conveying shaft is arranged on the chip guide cover and penetrates through the chip guide cover, the conveying shaft is rotatable, and the rear end of the conveying shaft is provided with a power device connecting structure; the chip breaking blades are connected with the conveying shaft and correspond to the chip breaking plate in position, the number of the chip breaking blades is 3 or 4, the chip breaking blades are uniformly distributed on the circumference, the chip breaking blades are obliquely arranged to have the function of conveying chips backwards, and the chip breaking blades and the chip breaking plate form a chip breaking structure together; the conveying blade is connected to a conveying shaft between the chip breaking blade and the chip guide-out cover; the outer edges of the chip breaking blade and the conveying blade are close to the hole wall of the chip guide hole.
Further, the method comprises the following steps: a chip guide inclined surface for guiding chips to the chip guide hole is arranged on the blade close to the front blade surface.
Further, the method comprises the following steps: the blade is the bar blade, and the blade sets up along the cutter arbor is radial, and the blade is adjustable along the radial position of cutter arbor.
Further, the method comprises the following steps: the inner side of the chip breaking plate is provided with a shearing edge which is parallel and level with the hole wall of the chip guide hole.
Further, the method comprises the following steps: the chip breaking plate is of a centrosymmetric structure, the inner side and the outer side of the chip breaking plate are provided with shearing blades, and the chip breaking plate can be turned over for use.
Further, the method comprises the following steps: carry the axle including carrying the axle anterior segment and carrying the axle back end, carry the axle anterior segment and carry the axle back end and can dismantle and be connected, carry and connect the chip breaking blade on the axle anterior segment, carry and connect on the axle back end and carry the blade.
Further, the method comprises the following steps: the conveying shaft comprises a positioning screw;
the front end of the rear section of the conveying shaft is provided with a rear section hole groove and a rear section bulge which are positioned at two sides of the shaft section of the rear section of the conveying shaft, the shaft section at the joint of the rear section hole groove and the rear section bulge is a rear section positioning surface, the rear section hole groove comprises a rear section installation notch and a rear section positioning hole positioned behind the rear section installation notch, and the rear section bulge comprises a rear section installation bulge and a rear section positioning column positioned in front of the rear section installation bulge;
the rear end of the front section of the conveying shaft is provided with a front section hole groove and a front section protrusion which are positioned at two sides of the front section shaft section of the conveying shaft, the shaft section at the joint of the front section hole groove and the front section protrusion is a front section positioning surface, the front section hole groove comprises a front section installation notch and a front section positioning hole positioned in front of the front section installation notch, and the front section protrusion comprises a front section installation protrusion and a front section positioning column positioned behind the front section installation protrusion;
the front section positioning surface is attached to the rear section positioning surface, the front section positioning column is inserted into the rear section positioning hole and matched with the rear section positioning hole, and the rear section positioning column is inserted into the front section positioning hole and matched with the front section positioning hole; the positioning screw is connected with the front section of the conveying shaft and enables the front section of the conveying shaft to be axially and tightly propped against the rear section of the conveying shaft.
Further, the method comprises the following steps: the shapes of the rear section positioning hole, the rear section positioning column, the front section positioning hole and the front section positioning column are all wedge-shaped.
Further, the method comprises the following steps: the positioning screw is in threaded connection with the front section mounting protrusion and is perpendicular to the front section positioning surface, the end of the positioning screw is a positioning conical head, a positioning conical hole is formed in the rear section mounting protrusion, the axis of the positioning conical hole is located behind the axis of the positioning screw, and the positioning conical head is pressed against the front wall surface of the positioning conical hole.
Further, the method comprises the following steps: a sliding bearing is arranged between the front end of the conveying shaft and the cutter bar, and a sliding bearing is arranged between the conveying shaft and the chip guide-out cover.
The invention has the beneficial effects that: when the lathe tool is used, the lathe tool is clamped on a lathe like a common lathe tool, extends into a drilled hole of a workpiece, and then lathes the surface of the hole. The difference is that a power device needs to be fixed on the lathe, and the power device is connected with a power device connecting structure so as to drive the conveying shaft to rotate. Chips generated by turning enter the lead-in hole and then enter the chip guide hole; the chip breaking blade rotates to generate shearing and knocking actions together with the chip breaking plate, so that chips are broken into small sections, and the chips are prevented from being wound on the conveying structure; the chip breaking blade also conveys the chips backwards to the conveying blade, and the conveying blade conveys the chips backwards to the chip guide-out cover; the radial lead-out hole leads out the cutting and avoids cutting back to the hole on the workpiece.
The scrap iron discharging device can forcibly discharge scrap iron, avoids various defects of cutting and storage and workpiece holes, and can forcibly convey and discharge the scrap iron upwards even when the turning tool of the vertical lathe is vertically arranged.
Drawings
FIG. 1 is a perspective view of an internal hole machining tool capable of automatically discharging chips;
FIG. 2 is an enlarged view of the front portion of FIG. 1;
FIG. 3 is a front view of an inner hole machining tool capable of automatically discharging chips;
FIG. 4 is an enlarged view of the front portion of FIG. 3;
FIG. 5 is an axial cross-sectional view of an inner hole machining tool capable of automatically discharging chips;
FIG. 6 is a top view of an inner hole machining tool capable of automatically discharging chips;
FIG. 7 is a cross-sectional view of a chipbreaker plate;
FIG. 8 is a view showing the connection between the front section of the feed shaft and the rear section of the feed shaft;
FIG. 9 is a rear end view of the forward section of the delivery shaft;
FIG. 10 is a front end view of the rear section of the delivery shaft;
FIG. 11 is a diagram of the use state of an inner hole machining tool capable of automatically discharging chips;
labeled as: the cutting tool comprises a tool bar 1, a chip guide hole 11, a lead-in hole 12, a blade 2, a rake face 21, a chip guide inclined plane 22, a conveying shaft 3, a conveying shaft front section 31, a front section positioning surface 311, a front section protrusion 312, a front section mounting protrusion 3132, a front section positioning column 3122, a front section hole groove 313, a front section mounting notch 3131, a front section positioning hole 3132, a conveying shaft rear section 32, a rear section positioning surface 321, a rear section protrusion 322, a rear section mounting protrusion 3221, a rear section positioning column 3222, a rear section hole groove 323, a rear section mounting notch 3231, a rear section positioning hole 3232, a positioning taper hole 324, a power device connecting structure 33, a positioning screw 34, a positioning taper head 341, a chip breaking blade 4, a conveying blade 5, a chip breaking plate 6, a shearing blade 61, a chip leading-out cover 7, a radial leading-out hole 71, a sliding bearing 8 and a power device 9.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1 to 5, the inner hole machining tool capable of automatically discharging chips comprises a tool bar 1 and a blade 2 connected to the front end of the tool bar 1; the device also comprises a conveying structure, a chip breaking plate 6 and a chip guiding cover 7; the cutter bar 1 is provided with a chip guide hole 11 and a guide hole 12, the chip guide hole 11 is axially arranged along the cutter bar 1, the chip guide hole 11 extends from the front part of the cutter bar 1 to the rear end of the cutter bar 1, the guide hole 12 is close to the blade 2, the guide hole 12 extends from the side surface of the cutter bar 1 to the chip guide hole 11, and cutting generated by processing the blade 2 can enter the chip guide hole 11 through the guide hole 12; the chip leading-out cover 7 is connected to the rear end of the cutter bar 1, a radial leading-out hole 71 is formed in the chip leading-out cover 7, and the radial leading-out hole 71 is communicated with the chip leading-out hole 11; the chip breaking plate 6 is arranged on the wall surface of the leading-in hole 12;
the conveying structure comprises a conveying shaft 3, a chip breaking blade 4 and a conveying blade 5; the conveying shaft 3 is coaxially arranged with the chip guide hole 11 and is positioned in the chip guide hole 11, the front end of the conveying shaft 3 is arranged at the front end of the cutter bar 1, the rear part of the conveying shaft 3 is arranged on the chip guide-out cover 7 and penetrates through the chip guide-out cover 7, the conveying shaft 3 can rotate, and the rear end of the conveying shaft 3 is provided with a power device connecting structure 33; the chip breaking blades 4 are connected with the conveying shaft 3 and correspond to the chip breaking plates 6 in position, the number of the chip breaking blades 4 is 3 or 4, the chip breaking blades 4 are uniformly distributed on the circumference, the chip breaking blades 4 are obliquely arranged to have the function of conveying chips backwards, and the chip breaking blades 4 and the chip breaking plates 6 form a chip breaking structure together; the conveying blade 5 is connected on the conveying shaft 3 between the chip breaking blade 4 and the chip guide cover 7; the outer edges of the chip breaking blade 4 and the conveying blade 5 are close to the hole wall of the chip guide hole 11.
As shown in fig. 11, when the present invention is used, as a general turning tool, the tool bar 1 is clamped on a lathe and extends into a drilled hole of a workpiece, and then the surface of the hole is turned. Except that the power unit 11 is fixed on the lathe, and the power unit 11 is connected with the power unit connecting structure 33 so as to drive the conveying shaft 3 to rotate. In the turning process, the tool is not rotated, and the workpiece is rotated, so that the power unit 11 can be directly connected to the power unit connection structure 33. The power unit 11 may be a conventional structure of a motor plus a speed reducer, and the power unit connection structure 33 may be a conventional link structure such as a single key or a spline. The power unit 11 and the power unit connection structure 33 may be coupled by a coupling.
Chips generated by turning enter the leading-in hole 12 and then enter the chip leading-in hole 11; the chip breaking blade 4 rotates to generate shearing and knocking actions together with the chip breaking plate 6, so that chips are broken into small sections, and the chips are prevented from being wound on a conveying structure; the chip breaking blade 4 also conveys the chips backwards to the conveying blade 5, and the conveying blade 5 conveys the chips backwards to the chip guide-out cover 7; the radial lead-out holes 71 lead out the cut and avoid cutting back into the hole in the workpiece. The scrap iron discharging device can forcibly discharge scrap iron, avoids various defects of cutting and storage and workpiece holes, and can forcibly convey and discharge the scrap iron upwards even when the turning tool of the vertical lathe is vertically arranged.
As shown in fig. 2, since the blade 2 is mounted on the front end of the cutter bar 1 and the front end of the cutter bar 1 is left at the mounting position of the feed shaft 3, the introduction hole 12 is located at the rear inside the blade 2. In order to guide the cutting into the introduction hole 12, the insert 2 is provided with a chip guide slope 22 for guiding the chips into the introduction hole 12 in the vicinity of the rake surface 21. The chip guide slope 22 is designed to guide chips in a rearward and inward direction as shown in fig. 2, and chips generated by machining flow over the rake surface 21 and are guided by the chip guide slope 22 into the introduction hole 12.
As shown in fig. 5, the conveying shaft 3 may be mounted in such a manner that a sliding bearing 8 is provided between the tip of the conveying shaft 3 and the cutter bar 1, and a sliding bearing 8 is also provided between the conveying shaft 3 and the chip lead-out cover 7, thereby ensuring the conveying shaft 3 to be rotatable.
The chip breaking blade 4 and the chip breaking plate 6 have the functions of shearing and knocking together, so that chips are broken into small sections, and the chips are prevented from being wound on a conveying structure. The chip-breaker blade 4 also has to have a certain conveying effect so that the chips can be conveyed backwards to the conveyor blade 5. The specific structure of the chip-breaking blade 4 can be as shown in fig. 4, and the backward conveying angle is small, so that the knocking and shearing effects on chips are guaranteed. The number of the chip breaker blades 4 is 3 or 4 to break the chips to a suitable length. The conveying blade 5 may be provided by referring to a blade of an existing screw conveyor.
The outer edges of the chip breaking blade 4 and the conveying blade 5 should be close to the hole wall of the chip guide hole 11, so that chips are prevented from being clamped between the conveying shaft 3 and the hole wall of the chip guide hole 11 as much as possible. The distance between the outer edges of the chip breaking blade 4 and the conveying blade 5 and the hole wall of the chip guide hole 11 is controlled to be 0.1mm to 0.2 mm.
The chip breaker plate 6 may be a flat plate for cushioning chips. In order to improve the shearing action of the chip breaking blade 4 and the chip breaking plate 6 on the chips, the inner side of the chip breaking plate 6 is preferably provided with a shearing edge 61, and the shearing edge 61 is flush with the hole wall of the chip guide hole 11. In order to increase the life of the breaker plate 6, it is preferable that the breaker plate 6 has a centrosymmetric structure, the breaker plate 6 has shearing edges 61 on the inner and outer sides, and the breaker plate 6 can be used in a reversed state, as shown in fig. 7. After one side of the chip breaker plate 6 is worn, the other shearing blade 61 can be used in a reversible manner, so that the service life of the chip breaker plate 6 can be prolonged.
In order to facilitate machining of a stepped hole with a diameter larger outside and smaller inside, the blade 2 is preferably a strip-shaped blade, the blade 2 is radially arranged along the cutter bar 1, and the position of the blade 2 along the radial direction of the cutter bar 1 is adjustable. Therefore, the blade 2 is adjusted radially outwards, and the step hole can be conveniently machined.
The cutter bar 1 can be made of high-hardness materials such as high-speed steel, but the chip breaking blade 4 and the conveying blade 5 are twisted and are not easy to be made of the high-hardness materials such as the high-speed steel. And is therefore relatively susceptible to wear. For this purpose, the conveying shaft 3 preferably comprises a conveying shaft front section 31 and a conveying shaft rear section 32, the conveying shaft front section 31 is detachably connected with the conveying shaft rear section 32, the conveying shaft front section 31 is connected with the chip breaking blade 4, and the conveying shaft rear section 32 is connected with the conveying blade 5. The significance of such setting lies in if the chip-breaking blade 4 is worn and then change transport axle anterior segment 31, if transport blade 5 is worn and then change transport axle back end 32, avoids changing whole transport structure, can reduce the use cost of cutter.
The front conveying shaft section 31 and the rear conveying shaft section 32 can be connected in a specific manner as shown in fig. 8 to 10: the delivery shaft 3 comprises a set screw 34; the front end of the conveying shaft rear section 32 is provided with a rear section hole groove 323 and a rear section protrusion 322 which are positioned at two sides of the shaft section of the conveying shaft rear section 32, the shaft section of the joint of the rear section hole groove 323 and the rear section protrusion 322 is a rear section positioning surface 321, the rear section hole groove 323 comprises a rear section installation notch 3231 and a rear section positioning hole 3232 which is positioned behind the rear section installation notch 3231, and the rear section protrusion 322 comprises a rear section installation protrusion 3221 and a rear section positioning column 3222 which is positioned in front of the rear section installation protrusion 3221; the rear end of the front section 31 of the conveying shaft is provided with a front section hole groove 313 and a front section protrusion 312 which are positioned at two sides of the axial section of the front section 31 of the conveying shaft, the axial section at the joint of the front section hole groove 313 and the front section protrusion 312 is a front section positioning surface 311, the front section hole groove 313 comprises a front section mounting notch 3131 and a front section positioning hole 3132 positioned in front of the front section mounting notch 3131, and the front section protrusion 312 comprises a front section mounting protrusion 3132 and a front section positioning post 3122 positioned behind the front section mounting protrusion 3132; the front section positioning surface 311 is attached to the rear section positioning surface 321, the front section positioning column 3122 is inserted into the rear section positioning hole 3232 and is matched with the rear section positioning hole 3232, and the rear section positioning column 3222 is inserted into the front section positioning hole 3132 and is matched with the front section positioning hole 3132; the positioning screw 34 is connected to the front conveying shaft section 31 and axially abuts the front conveying shaft section 31 against the rear conveying shaft section 32. The connection and the disassembly of the connection mode are simple in operation and reliable in connection.
It is further preferred that rear positioning hole 3232, rear positioning post 3222, front positioning hole 3132 and front positioning post 3122 are wedge-shaped. Therefore, when the front section 31 of the conveying shaft and the rear section 32 of the conveying shaft are axially abutted, the front section positioning column 3122 and the rear section positioning hole 3232, and the rear section positioning column 3222 and the front section positioning column 3122 are abutted, so as to further improve the positioning effect of the connection.
The specific way of achieving the axial abutment of the front conveying shaft section 31 and the rear conveying shaft section 32 may be as follows: the positioning screw 34 is in threaded connection with the front section mounting protrusion 3132 and is perpendicular to the front section positioning surface 311, the end of the positioning screw 34 is a positioning conical head 341, the rear section mounting protrusion 3221 is provided with a positioning conical hole 324, the axis of the positioning conical hole 324 is located behind the axis of the positioning screw 34, and the positioning conical head 341 abuts against the front wall surface of the positioning conical hole 324.
The invention needs to arrange a conveying structure in the cutter bar 1, so the invention is suitable for the situation that the cutter bar 1 is thick, and is particularly suitable for deep blind holes of large parts of a vertical lathe.
Claims (10)
1. An inner hole machining cutter capable of automatically discharging chips comprises a cutter bar (1) and a blade (2) connected to the front end of the cutter bar (1); the method is characterized in that: comprises a conveying structure, a chip breaking plate (6) and a chip guiding cover (7); the chip guide cutter is characterized in that the cutter rod (1) is provided with a chip guide hole (11) and a chip guide hole (12), the chip guide hole (11) is axially arranged along the cutter rod (1), the chip guide hole (11) extends from the front part of the cutter rod (1) to the rear end of the cutter rod (1), the chip guide hole (12) is close to the blade (2), the chip guide hole (12) extends from the side surface of the cutter rod (1) to the chip guide hole (11), and cutting generated by processing the blade (2) can enter the chip guide hole (11) through the chip guide hole (12); the chip leading-out cover (7) is connected to the rear end of the cutter bar (1), a radial leading-out hole (71) is formed in the chip leading-out cover (7), and the radial leading-out hole (71) is communicated with the chip leading hole (11); the chip breaking plate (6) is arranged on the wall surface of the leading-in hole (12);
the conveying structure comprises a conveying shaft (3), a chip breaking blade (4) and a conveying blade (5); the conveying shaft (3) and the chip guide hole (11) are coaxially arranged and are positioned in the chip guide hole (11), the front end of the conveying shaft (3) is installed at the front end of the cutter bar (1), the rear part of the conveying shaft (3) is installed on the chip guide cover (7) and penetrates through the chip guide cover (7), the conveying shaft (3) can rotate, and the rear end of the conveying shaft (3) is provided with a power device connecting structure (33); the chip breaking blades (4) are connected with the conveying shaft (3) and correspond to the chip breaking plate (6) in position, the number of the chip breaking blades (4) is 3 or 4, the chip breaking blades (4) are uniformly distributed on the circumference, the chip breaking blades (4) are obliquely arranged to have the function of conveying chips backwards, and the chip breaking blades (4) and the chip breaking plate (6) form a chip breaking structure together; the conveying blade (5) is connected to the conveying shaft (3) between the chip breaking blade (4) and the chip guide-out cover (7); the outer edges of the chip breaking blade (4) and the conveying blade (5) are close to the hole wall of the chip guide hole (11).
2. The internal hole machining tool capable of automatic chip removal according to claim 1, wherein: a chip guide slope (22) for guiding chips to the chip guide hole (12) is provided on the blade (2) near the rake face (21).
3. The internal hole machining tool capable of automatic chip removal according to claim 2, wherein: the blade (2) is a strip-shaped blade, the blade (2) is arranged along the radial direction of the cutter bar (1), and the position of the blade (2) along the radial direction of the cutter bar (1) is adjustable.
4. The internal hole machining tool capable of automatic chip removal according to claim 1, wherein: the inner side of the chip breaking plate (6) is provided with a shearing edge (61), and the shearing edge (61) is flush with the wall of the chip guide hole (11).
5. The internal hole machining tool capable of automatic chip removal according to claim 4, wherein: the chip breaking plate (6) is of a centrosymmetric structure, the inner side and the outer side of the chip breaking plate (6) are provided with shearing blades (61), and the chip breaking plate (6) can be turned over for use.
6. The internal hole machining tool capable of automatic chip removal according to claim 1, wherein: carry axle (3) including carrying axle anterior segment (31) and carrying axle back end (32), carry axle anterior segment (31) and carry axle back end (32) to dismantle and be connected, carry and connect chip breaking blade (4) on axle anterior segment (31), carry and connect on axle back end (32) and carry blade (5).
7. The internal hole machining tool capable of automatic chip removal according to claim 6, wherein: the delivery shaft (3) comprises a set screw (34);
the front end of the rear section (32) of the conveying shaft is provided with a rear section hole groove (323) and a rear section protrusion (322) which are positioned at two sides of the axial section of the rear section (32) of the conveying shaft, the axial section of the joint of the rear section hole groove (323) and the rear section protrusion (322) is a rear section positioning surface (321), the rear section hole groove (323) comprises a rear section installation notch (3231) and a rear section positioning hole (3232) which is positioned behind the rear section installation notch (3231), and the rear section protrusion (322) comprises a rear section installation protrusion (3221) and a rear section positioning column (3222) which is positioned in front of the rear section installation protrusion (3221);
the rear end of the front section (31) of the conveying shaft is provided with a front section hole groove (313) and a front section protrusion (312) which are positioned on two sides of the axial section of the front section (31) of the conveying shaft, the axial section of the joint of the front section hole groove (313) and the front section protrusion (312) is a front section positioning surface (311), the front section hole groove (313) comprises a front section mounting notch (3131) and a front section positioning hole (3132) which is positioned in front of the front section mounting notch (3131), and the front section protrusion (312) comprises a front section mounting protrusion (3132) and a front section positioning column (3122) which is positioned behind the front section mounting protrusion (3132);
the front section positioning surface (311) is attached to the rear section positioning surface (321), the front section positioning column (3122) is inserted into the rear section positioning hole (3232) and matched with the rear section positioning hole (3232), and the rear section positioning column (3222) is inserted into the front section positioning hole (3132) and matched with the front section positioning hole (3132); the positioning screw (34) is connected with the front section (31) of the conveying shaft and enables the front section (31) of the conveying shaft to be tightly pressed against the rear section (32) of the conveying shaft in the axial direction.
8. The internal hole machining tool capable of automatic chip removal according to claim 7, wherein: the rear section positioning hole (3232), the rear section positioning column (3222), the front section positioning hole (3132) and the front section positioning column (3122) are wedge-shaped.
9. The internal hole machining tool capable of automatic chip removal according to claim 8, wherein: the positioning screw (34) is in threaded connection with the front section mounting protrusion (3132) and is perpendicular to the front section positioning surface (311), the end of the positioning screw (34) is a positioning conical head (341), the rear section mounting protrusion (3221) is provided with a positioning conical hole (324), the axis of the positioning conical hole (324) is located behind the axis of the positioning screw (34), and the positioning conical head (341) is pressed against the front wall surface of the positioning conical hole (324).
10. The internal hole machining tool capable of automatic chip removal according to claim 1, wherein: a sliding bearing (8) is arranged between the front end of the conveying shaft (3) and the cutter bar (1), and a sliding bearing (8) is arranged between the conveying shaft (3) and the chip guide-out cover (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111458565.0A CN114029517B (en) | 2021-12-02 | Inner hole machining cutter capable of automatically removing chips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111458565.0A CN114029517B (en) | 2021-12-02 | Inner hole machining cutter capable of automatically removing chips |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114029517A true CN114029517A (en) | 2022-02-11 |
| CN114029517B CN114029517B (en) | 2024-07-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115647860A (en) * | 2022-10-19 | 2023-01-31 | 大连理工大学 | Barrel part inner hole groove machining and detecting equipment |
| CN116213781A (en) * | 2023-05-06 | 2023-06-06 | 太原工具厂有限责任公司 | Indexable shallow hole drill assisting chip removal |
| CN116618722A (en) * | 2023-07-19 | 2023-08-22 | 常州西夏墅工具产业创业服务中心 | Deep blind hole boring cutter with automatic chip removal function |
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| JP2013103288A (en) * | 2011-11-11 | 2013-05-30 | Mori Seiki Co Ltd | Tool for sucking chip |
| JP2020049577A (en) * | 2018-09-26 | 2020-04-02 | 三菱マテリアル株式会社 | Chip suction type cutting tool |
| CN112605436A (en) * | 2020-10-27 | 2021-04-06 | 无锡秀研精密机械有限公司 | Novel drill bit installation chip removal mechanism |
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| JPH08182935A (en) * | 1994-12-28 | 1996-07-16 | Ootsuka Tec:Kk | Machining chip treating device |
| CN103097078A (en) * | 2010-09-15 | 2013-05-08 | 村田机械株式会社 | Tool with swarf guide, and lathe |
| CN102233441A (en) * | 2011-04-13 | 2011-11-09 | 中北大学 | Continuous automatic inner-chip removal deep-hole inner-reaming cutter based on spray-absorption mechanism |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115647860A (en) * | 2022-10-19 | 2023-01-31 | 大连理工大学 | Barrel part inner hole groove machining and detecting equipment |
| CN115647860B (en) * | 2022-10-19 | 2023-09-19 | 大连理工大学 | Cylinder part inner hole groove machining and detecting equipment |
| CN116213781A (en) * | 2023-05-06 | 2023-06-06 | 太原工具厂有限责任公司 | Indexable shallow hole drill assisting chip removal |
| CN116213781B (en) * | 2023-05-06 | 2023-07-14 | 太原工具厂有限责任公司 | Indexable shallow hole drill assisting chip removal |
| CN116618722A (en) * | 2023-07-19 | 2023-08-22 | 常州西夏墅工具产业创业服务中心 | Deep blind hole boring cutter with automatic chip removal function |
| CN116618722B (en) * | 2023-07-19 | 2023-09-15 | 常州西夏墅工具产业创业服务中心 | Deep blind hole boring cutter with automatic chip removal function |
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