CN110270698B - Combined boring cutter rolling tool - Google Patents

Combined boring cutter rolling tool Download PDF

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Publication number
CN110270698B
CN110270698B CN201910588658.1A CN201910588658A CN110270698B CN 110270698 B CN110270698 B CN 110270698B CN 201910588658 A CN201910588658 A CN 201910588658A CN 110270698 B CN110270698 B CN 110270698B
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CN
China
Prior art keywords
rolling
tool
cutting
supporting
retainer
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CN201910588658.1A
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Chinese (zh)
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CN110270698A (en
Inventor
姜丽娟
李山
付庆龙
童卫民
钱锡金
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Hangzhou Changhang Machinery Manufacturing Co ltd
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Hangzhou Changhang Machinery Manufacturing Co ltd
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Priority to CN201910588658.1A priority Critical patent/CN110270698B/en
Publication of CN110270698A publication Critical patent/CN110270698A/en
Application granted granted Critical
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B27/00Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B27/00Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1644Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped by a clamping member acting almost perpendicularly on the chip-forming plane and at the same time upon the wall of a hole in the cutting insert
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P9/00Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
    • B23P9/02Treating or finishing by applying pressure, e.g. knurling

Abstract

The invention discloses a combined boring cutter rolling tool, which comprises a mandrel, a cutting part, a supporting part and a rolling part, wherein the cutting part, the supporting part and the rolling part are sequentially and coaxially arranged on the mandrel, and the combined boring cutter rolling tool comprises: the cutting part comprises a tool bit seat and a plurality of blades with different cutting radiuses, the blade with the smallest cutting radius is arranged at the foremost end of the tool bit seat, and the other blades are sequentially arranged at the position, close to the rear, of the tool bit seat from small to large according to the cutting radiuses; the supporting part is arranged between the cutting part and the rolling part and comprises a retainer and a plurality of supporting columns, the retainer is sleeved on the mandrel, and the supporting columns are arranged on the retainer; the rolling part is arranged at the rear end of the mandrel. The invention has the advantages that the cutting part, the supporting part and the rolling part are sequentially arranged on the same mandrel, the processes of rough turning, finish turning and rolling are completed at one time, tools do not need to be switched and re-clamping is not needed, the error caused by re-clamping is avoided, and the processing efficiency and the precision are improved.

Description

Combined boring cutter rolling tool
Technical Field
The invention relates to a pipe inner hole processing device, in particular to a combined boring cutter rolling cutter.
Background
When the traditional process is used for machining the elongated holes of the seamless pipe workpiece, the required process requirements can be met by the procedures of primary boring, fine boring, grinding and the like. The re-clamping of the workpiece between the processes inevitably brings certain shape position errors and size errors, so that the machining precision is difficult to guarantee.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the combined boring rolling cutter, three procedures of rough turning, finish turning and rolling can be realized by one-time clamping, the efficiency is improved, the transition times are reduced, and the cost is saved.
The purpose of the invention is realized by adopting the following technical scheme:
the utility model provides a modular boring cutter rolling tool, includes dabber, cutting part, supporting part and rolling portion, the cutting part the supporting part with rolling portion is coaxial setting in proper order in the dabber, wherein:
the cutting part comprises a tool bit seat and a plurality of blades with different cutting radiuses, the blade with the smallest cutting radius is arranged at the foremost end of the tool bit seat, and the rest blades are sequentially arranged at the position, close to the rear, of the tool bit seat from small to large according to the cutting radiuses;
the supporting part is arranged between the cutting part and the rolling part and comprises a retainer and a plurality of supporting columns, the retainer is sleeved on the mandrel, and the supporting columns are arranged on the retainer;
the rolling part is arranged at the rear end of the mandrel and comprises a plurality of rollers, a rolling retainer and a pressure taper sleeve, the pressure taper sleeve is fixedly connected with the mandrel, the rolling retainer is sleeved outside the pressure taper sleeve, the rollers are embedded into the rolling retainer, and the inner side of the rolling retainer is abutted to the outer conical surface of the pressure taper sleeve.
Furthermore, the tool bit seat comprises an adjustable tool bit, the adjustable tool bit comprises an adjustable tool bit seat, an adjusting nut and a locking bolt, and the adjustable tool bit seat is connected with the tool bit seat through the locking bolt and adjusts the cutting radius through the adjusting nut.
Further, the dabber includes tool bit seat installation department, tool bit seat installation department is conical, through first shaft key with tool bit seat fixed connection.
Furthermore, the supporting part further comprises a supporting sleeve, the supporting sleeve is sleeved on the core shaft and is connected with the core shaft through a second shaft key and a locking nut, the retainer is sleeved outside the supporting sleeve, a plurality of supporting columns arranged on the retainer abut against the supporting sleeve, and a first bearing is arranged between the retainer and the core shaft.
Further, the supporting part further comprises a nylon supporting ring and a second bearing, the nylon supporting ring is arranged at the rear end of the tool bit seat, and the second bearing is arranged between the nylon supporting ring and the tool bit seat.
Further, the nylon support ring and the second bearing are connected with the tool bit base through a bakelite locking nut, and the bakelite locking nut is in threaded connection with the tool bit base and is arranged behind the nylon support ring and the second bearing.
Furthermore, a bearing ball is arranged between the bakelite locknut and the retainer.
Further, the roller of the rolling part is a tapered roller, the large end of the roller is arranged towards the cutting part, and the small end of the pressure taper sleeve is arranged towards the cutting part; the rolling portion with still be equipped with elasticity portion between the supporting part, elasticity portion supports cover and elastic component adjustment ring including the cover body, elastic component, the elastic component supports the ways and establishes the dabber, the elastic component sets up the cover body with between the elastic component supports the cover, one end with the elastic component supports the cover and offsets, the other end with the elastic component adjustment ring offsets, the cover body orientation one side of rolling retainer is equipped with and holds the chamber, hold the chamber with rolling retainer looks adaptation, the rolling retainer with the elastic component adjustment ring offsets, and the elastic component effect gets into down or withdraws from hold the chamber.
Furthermore, a third bearing is arranged between the retainer and the elastic part supporting sleeve, the sleeve body is arranged outside the elastic part supporting sleeve, and a fourth bearing is arranged between the sleeve body and the elastic part supporting sleeve; and a fifth bearing is arranged between the elastic piece adjusting ring and the rolling retainer.
Furthermore, one end of the mandrel, which is far away from the cutting part, is provided with a flat taper shank and an annular boss, and the annular boss is used for being connected with the main rod body through a rod-removing nut.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the cutting part, the supporting part and the rolling part are sequentially arranged on the same mandrel, the rough turning and the finish turning of the inner hole of the workpiece are sequentially finished by utilizing the blades with different cutting radiuses on the cutting part, and then the rolling process is finished by utilizing the rolling part, so that the tool switching and re-clamping are not needed, the error caused by re-clamping is avoided, and the processing efficiency and the precision are improved; meanwhile, the supporting part is arranged between the cutting part and the rolling part, and plays a role in supporting and guiding the cutting part and the rolling part, so that the cutter is more stable in the machining process, and the deep hole machining precision is higher.
Drawings
Fig. 1 is a schematic structural diagram of a combined boring rolling tool according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic structural diagram of a cutting portion according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another angle of the cutting portion according to the embodiment of the present invention.
In the figure: 10. a mandrel; 11. a bit holder mounting portion; 12. a flat taper shank; 13. an annular boss; 14. removing the rod nut; 20. a cutting portion; 21. a tool bit seat; 22. a blade; 23. mounting grooves; 24. an adjustable knife section; 241. an adjustable tool apron; 242. adjusting the nut; 243. locking the bolt; 25. a seat groove; 26. a conical groove; 27. a first shaft key; 30. a support portion; 31. a holder; 311. a through groove; 32. a support pillar; 33. a support sleeve; 34. a second shaft key; 35. a nylon support ring; 36. a second bearing; 37. a bakelite lock nut; 38. a support ball; 40. an elastic part; 41. a sleeve body; 42. a spring; 43. an elastic member support sleeve; 44. an elastic member adjustment ring; 45. an accommodating chamber; 46. a first resisting block; 47. a second resisting block; 48. a third bearing; 49. a fourth bearing; 50. a rolling part; 51. a roller; 52. rolling the retainer; 53. a pressure cone sleeve; 54. a fifth bearing; 55. a sixth bearing; 56. a round nut; 57. and a seventh bearing.
Detailed Description
The present invention will now be described in more detail with reference to the accompanying drawings, in which the description of the invention is given by way of illustration and not of limitation. The various embodiments may be combined with each other to form other embodiments not shown in the following description.
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a number" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
Referring to fig. 1 to 4, a combination type boring rolling cutter according to an embodiment of the present invention will be explained in the following description. As shown in fig. 1, the combined boring and rolling tool of the present embodiment includes a mandrel 10, a cutting portion 20, a supporting portion 30 and a rolling portion 50, wherein the cutting portion 20, the supporting portion 30 and the rolling portion 50 are coaxially disposed on the mandrel 10 in sequence, the cutting portion 20 includes a tool tip seat 21 and a plurality of blades 22 with different cutting radii, the blade 22 with the smallest cutting radius is disposed at the foremost end of the tool tip seat 21, and the remaining blades 22 are sequentially mounted at the rear position of the tool tip seat 21 from small to large according to the cutting radii; the cutting part 20 is used for rough turning and finish turning of a workpiece, more specifically, a plurality of mounting grooves 23 with different cutting radiuses are arranged on the tool bit seat 21, the blades 22 are arranged on the different mounting grooves 23 through screws, the height of each mounting groove 23 is set according to the cutting radius, the height of the mounting groove 23 with the smaller cutting radius is higher, the blade 22 with the smallest cutting radius is enabled to firstly contact with the workpiece, rough turning is carried out on the workpiece, then the blade 22 with the second smaller cutting radius is contacted with the workpiece, further cutting is carried out until the last blade 22 with the largest cutting radius is used for finish turning of the inner hole of the workpiece, and the process from rough turning to finish turning of the workpiece is achieved; the height and the tip of the present embodiment are the same, and both mean directions toward the workpiece, and the tip seat 21 is the tip that comes into contact with the workpiece first, and is the mounting groove 23 with the highest height on the tip seat 21, in terms of the tip seat 21 itself. In this embodiment, the blade with the largest cutting radius is a finish machining blade for finish turning, and the blades with smaller cutting radii are rough machining blades for finish turning.
The supporting portion 30 is arranged between the cutting portion 20 and the rolling portion 50 and used for supporting and guiding the cutting portion 20 and the rolling portion 50, the supporting portion 30 comprises a holder 31 and a plurality of supporting columns 32, the supporting columns 32 are arranged on the holder 31, when machining is conducted, a tool is fed but does not rotate, a workpiece rotates to achieve cutting, the supporting columns 32 and the holder 31 rotate along with the workpiece, the supporting portion 30 only moves axially when working in the workpiece, friction is reduced, and the service life of the supporting portion 30 is prolonged. The part that will support and roll extrusion of this embodiment is separated, avoids among the prior art roll extrusion and support to realize by the roller 51 of roll extrusion portion 50, and roller 51 wearing and tearing are serious, and the life-span is short, and the part that will support portion 30 and roll extrusion portion 50 of this embodiment separately sets up, reduces the design accuracy, and convenient adjustment discovers problem and maintenance easily in the course of working. The structure of the support column 32 is substantially the same as the structure of the roller 51.
The rolling part 50 is arranged at the rear end of the mandrel 10 and comprises a plurality of rollers 51, a rolling retainer 52 and a pressure taper sleeve 53, the pressure taper sleeve 53 is fixedly connected with the mandrel 10, the rolling retainer 52 is sleeved outside the pressure taper sleeve 53, the rollers 51 are embedded into the rolling retainer 52, and the inner side of the rolling retainer is abutted to the outer conical surface of the pressure taper sleeve 53. After rough turning and finish turning are completed, the tool is advanced and extended, the rolling part 50 contacts the inner hole surface of the workpiece after finish turning, and the inner hole surface of the workpiece is rolled by the roller 51, so that the rolling process is completed. The combined boring rolling tool can finish three processes of rough turning, finish turning and rolling after one-time clamping, and is convenient and fast and high in machining precision.
The mounting groove 23 on the tool bit seat 21 can be a fixed structure or a movable structure, so as to meet the requirements of different machining sizes. In order to facilitate the machining and use of the tool bit seat 21, several fixed mounting seats may be provided on the tool bit seat 21, and a movable mounting groove 23 capable of adjusting the cutting radius may be further provided. More specifically, the tool tip seat 21 of the present embodiment includes an adjustable tool portion 24, the adjustable tool portion 24 includes an adjustable tool holder 241, an adjusting nut 242 and a locking bolt 243, a seat slot 25 for placing the adjustable tool holder 241 is disposed on the tool tip seat 21, the installation slot 23 is disposed on the adjustable tool holder 241, that is, the blade 22 is fixedly connected to the adjustable tool holder 241, the adjustable tool holder 241 is connected to the tool tip seat 21 through the locking screw, and the cutting radius is adjusted through the adjusting nut 242. As shown in fig. 2 to 4, in order to make the cutter head mounting more stable, two locking bolts 243 are provided, which are respectively located at the upper and lower portions of the adjustable cutter seat 241, above and below the cutter blade 22. When the cutting radius of the insert 22 is adjusted, the two locking bolts 243 are loosened, then the distance between the adjusting nut 242 and the insert seat 21 is adjusted, the cutting radius of the insert 22 on the adjustable insert seat 241 of the mounting seat is modified, and then the two locking bolts 243 are tightened.
In general, the last insert 22 on the tool tip seat 21 is disposed on the adjustable tool tip seat 241, as shown in the specific example of fig. 3, 6 inserts 22 are disposed on the tool tip seat 21, the insert 22 with the smallest cutting radius is the insert 22 with the 6-th insert 22, the inserts 22 with the approximate cutting radii are symmetrically disposed on the tool tip seat 21, for example, the cutting radii of the insert 22 with No. 5 and the insert 22 with No. 6 are approximate, the cutting radii of the insert 22 with No. 3 and the insert 22 with No. 4 are approximate, and the cutting radii of the insert 22 with No. 1 and the insert 22 with No. 1 are approximate, wherein the cutting radius of the insert 22 with No. 1 is the largest, the insert 22 with No. 1 is disposed on the adjustable tool tip seat 241, which facilitates adjusting the size of the inner hole of the machined workpiece, the insert with No. 1 being a 04-angle finishing insert. It should be noted that the specific example shown in fig. 3 is not to be considered as limiting the structure and the protection scope of the present embodiment, and the user can set the number and the position of the blades according to the actual requirement.
As shown in fig. 3 and fig. 4, the threaded hole of the locking bolt 243 of the adjustable tool post 241 located below the tool head seat 21 is an inclined hole, so that the force received by the insert 22 during machining is directly transmitted to the locking bolt 243, and the adjustable tool post 241 is prevented from being damaged by stress and falling off.
As shown in fig. 1, the mandrel 10 includes a tool bit holder mounting portion 11, the tool bit holder mounting portion 11 is conical and is fixedly connected to the tool bit holder 21 through a first shaft key 27; the conical tool tip seat mounting portion 11 is advantageous for improving the concentricity of the tool tip seat 21 and the tool tip 22, and improving the machining accuracy. The tool bit seat mounting part 11 is inserted into the conical groove 26 in the center of the tool bit seat 21 and locked by the bolt, and the tool bit seat mounting part 11 is matched with the conical surface of the tool bit seat 21, so that the mounting is convenient and the concentricity is high.
The supporting portion 30 of this embodiment supports and guides the cutting portion 20 and the rolling portion 50, and therefore, in order to enable the supporting column 32 not to damage the mandrel 10 during rolling and support the supporting column 32, the supporting portion 30 of this embodiment further includes a supporting sleeve 33, the supporting sleeve 33 is sleeved on the mandrel 10 and is connected with the mandrel 10 through a second shaft key 34 and a lock nut, the supporting sleeve 33 is prevented from rotating, the mandrel 10 is protected favorably, the holder 31 is sleeved outside the supporting sleeve 33, the supporting columns 32 arranged on the holder 31 abut against the supporting sleeve 33, and a first bearing (not shown) is arranged between the holder 31 and the mandrel 10. Due to the fact that the first bearing is arranged, the cylindrical supporting column 32 and the retainer 31 rotate along with the workpiece, the whole cutter is supported, the cutter shaking is reduced, and the machining precision is improved. As shown in fig. 1, the supporting portion 30 of the present embodiment includes three supporting columns 32, which are sequentially embedded on the holder 31, and the outer side surfaces of all the supporting columns 32 are flush, and the inner side surfaces are abutted against the supporting sleeve 33. The number of the supporting columns 32 of the present embodiment may be 1, 2, 4, 5, etc.
In addition to the support columns 32 being stiff supports, this embodiment also provides soft supports. The support portion 30 further includes a nylon support ring 35 and a second bearing 36, the nylon support ring 35 is disposed on the rear end of the tool tip seat 21, the second bearing 36 is disposed between the nylon support ring 35 and the tool tip seat 21, and the nylon support ring 35 rotates with the workpiece under the action of the second bearing 36. Preferably, the second bearing 36 is a cylindrical roller bearing, so that the nylon support ring 35 is more stable and has better support effect. In the embodiment, the front end of the cutter is made of the nylon soft support, and the rear end of the cutter is made of the support column 32 in a rigid mode, so that the damping effect is achieved, the rigidity is sufficient, the machining precision is guaranteed, and the straightness, the roundness and the roughness of the inner hole of the workpiece are improved by one grade compared with those of the conventional machining process through actual machining inspection.
The mounting mode of nylon support ring 35 has the multiple, and in order to realize unified soft supporting effect, this embodiment is connected with tool bit seat 21 through bakelite lock nut 37, and bakelite lock nut 37 and tool bit seat 21 threaded connection set up behind nylon support ring 35 and second bearing 36.
Meanwhile, because the bakelite locknut 37 does not rotate along with the workpiece, and the retainer 31 is arranged behind the bakelite locknut 37, in order to reduce friction force, a bearing ball 38 is arranged between the bakelite locknut 37 and the retainer 31, which is beneficial to reducing friction force and generated heating power, and avoiding the occurrence of a 'vehicle stuffiness' phenomenon.
As shown in fig. 1, an elastic portion 40 is further disposed between the rolling portion 50 and the supporting portion 30, the elastic portion 40 includes a sleeve body 41, an elastic member supporting sleeve 43 and an elastic member adjusting ring 44, the elastic member supporting sleeve 43 is sleeved on the mandrel 10, the elastic member is disposed between the sleeve body 41 and the elastic member supporting sleeve 43, one end of the elastic member supporting sleeve 43 abuts against the elastic member supporting sleeve 43, the other end of the elastic member supporting sleeve 44 abuts against the elastic member adjusting ring 44, an accommodating cavity 45 is disposed on one side of the sleeve body 41 facing the rolling retainer 52, the accommodating cavity 45 is adapted to the rolling retainer 52, and the rolling retainer 52 abuts against the elastic member adjusting ring 44 and enters or exits the accommodating cavity 45 under the action of the elastic member. Preferably, the elastic member of this embodiment is a spring 42, a first abutting block 46 is disposed on the elastic member supporting sleeve 43, a second abutting block 47 is disposed on the elastic member adjusting ring 44, one end of the spring 42 abuts against the first abutting block 46, the other end abuts against the second abutting block 47, and meanwhile, the elastic member adjusting ring 44 abuts against the rolling retainer 52.
The roller 51 of the present embodiment is axially positioned by the rolling retainer 52, the roller 51 and the pressure cone 53 relatively move and rotate in the rolling groove of the rolling retainer 52, the rolling retainer 52 abuts against the elastic member adjusting ring 44, and the inner cavity of the rolling retainer is provided with a through groove 311 adapted to the pressure cone 53, so that when the elastic member is stressed and contracted, the rolling retainer 52 relatively axially moves along the mandrel 10, and simultaneously drives the roller 51 to move. When the tool of this embodiment is machined, the large end of the roller 51 first contacts the inner hole surface of the workpiece to perform rolling, meanwhile, in order to realize that the tool withdrawal rolling portion 50 does not work, the small end of the pressure taper sleeve 53 of this embodiment is arranged toward the cutting portion 20, when the tool withdraws, the spring 42 is stressed and compressed, the elastic member adjusting ring 44 retracts into the accommodating cavity 45, the rolling retainer 52 moves along with the elastic member adjusting ring 44, and the front end enters the accommodating cavity 45, because the rolling retainer 52 moves toward the cutting portion 20 as a whole, the roller 51 also moves toward the cutting portion 20, namely, moves toward the small end hole wall of the pressure taper sleeve 53, so that the diameter of the rolling portion 50 is reduced, the rolling portion 50 does not work, and the contact with the inner hole surface of the workpiece is avoided, the machining surface is damaged, and the machining precision.
In order to reduce the friction force between the elastic part 40 and the workpiece, the sleeve body 41 is arranged outside the elastic part supporting sleeve 43, a fourth bearing 49 is arranged between the sleeve body 41 and the elastic part supporting sleeve 43, and the sleeve body 41 of the elastic part 40 rotates along with the workpiece; in order to reduce the relative friction between the elastic part 40 and the supporting part 30, a third bearing 48 is arranged between the retainer 31 and the elastic part supporting sleeve 43, and the first bearing between the retainer 31 and the mandrel 10 is omitted as the retainer 31 is closer to the elastic part 40, namely the third bearing 48 in the figure; to reduce the relative friction between the spring 40 and the roll extrusion 50, a fifth bearing 54 is provided between the spring adjuster ring 44 and the roll extrusion retainer 52. Meanwhile, a sixth bearing 55 is provided between the rolling retainer 52 and the mandrel 10 to ensure the normal rotation of the rolling retainer 52 and the rollers 51. After the rolling retainer 52, two round nuts 56 are arranged, the round nuts 56 are used for positioning the rolling retainer 52, a seventh bearing 57 is arranged between the round nuts 56 and the rolling retainer 52, and the two round nuts 56 are used for controlling the radial pre-tightening force of the seventh bearing 57, so that the bearing rotating clearance is well known in the brocade, and the precision is improved.
In order to realize the installation and connection of the tool and the lathe main rod in the embodiment, the end of the mandrel 10 away from the cutting part 20 is provided with a flat taper shank 12 and an annular boss 13, and the annular boss 13 is used for being connected with the main rod body through a rod-releasing nut 14. Preferably, the connection between the mandrel 10 and the main rod can be realized through a main rod coupling sleeve, the tool of the embodiment firstly sleeves the trip rod nut 14 on the annular boss 13 of the mandrel 10, then sleeves the main rod coupling sleeve on the flat taper shank 12, the main rod coupling sleeve is in threaded connection with the trip rod nut 14, and the flat taper shank 12 plays a role in transmission. One surface of the annular boss 13 facing the cutting part 20 is provided with an arc surface for reducing the contact area when the release rod nut 14 is locked, thereby reducing the friction force.
The combined boring rolling tool of the embodiment combines the cutting part 20, the supporting part 30 and the rolling part 50 together, and is provided with the soft support and the hard support, so that the stability of the whole tool is greatly improved, the machining precision is ensured while the rough turning, the finish turning and the rolling process are realized at one time, the machining efficiency is improved, and the cost is saved; meanwhile, the elastic part 40 is utilized to prevent the rolling part 50 from scratching a processing surface when the cutter is withdrawn, so that the processing precision is further ensured.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims (9)

1. The utility model provides a modular boring cutter rolling tool which characterized in that, includes dabber, cutting portion, supporting part and rolling portion, the cutting portion the supporting part with rolling portion is coaxial setting in proper order on the dabber, wherein:
the cutting part comprises a tool bit seat and a plurality of blades with different cutting radiuses, the blade with the smallest cutting radius is arranged at the foremost end of the tool bit seat, and the rest blades are sequentially arranged at the position, close to the rear, of the tool bit seat from small to large according to the cutting radiuses;
the supporting part is arranged between the cutting part and the rolling part and comprises a retainer and a plurality of supporting columns, the retainer is sleeved on the mandrel, and the supporting columns are arranged on the retainer;
the rolling part is arranged at the rear end of the mandrel and comprises a plurality of rollers, a rolling retainer and a pressure taper sleeve, the pressure taper sleeve is fixedly connected with the mandrel, the rolling retainer is sleeved outside the pressure taper sleeve, the rollers are embedded into the rolling retainer, and the inner side of the rolling retainer is abutted to the outer conical surface of the pressure taper sleeve; the supporting part further comprises a supporting sleeve, the supporting sleeve is sleeved on the mandrel and is connected with the mandrel through a second shaft key and a locking nut, the holder is sleeved outside the supporting sleeve, a plurality of supporting columns arranged on the holder are abutted to the supporting sleeve, and a first bearing is arranged between the holder and the mandrel.
2. The combined boring rolling tool according to claim 1, wherein the tool head holder comprises an adjustable tool portion, the adjustable tool portion comprises an adjustable tool seat, an adjusting nut and a locking bolt, the adjustable tool seat is connected with the tool head holder through the locking bolt, and the cutting radius is adjusted through the adjusting nut.
3. The rolling tool as claimed in claim 1 or 2, wherein the mandrel comprises a head holder mounting portion, the head holder mounting portion being conical and fixedly connected to the head holder by a first shaft key.
4. The combination boring tool rolling tool of claim 1 wherein the support further comprises a nylon support ring disposed on a rear end of the tool bit carrier and a second bearing disposed between the nylon support ring and the tool bit carrier.
5. The rolling cutter of combined boring cutter as claimed in claim 4, wherein the nylon support ring and the second bearing are coupled to the bit block by a bakelite lock nut, which is threadedly coupled to the bit block and disposed behind the nylon support ring and the second bearing.
6. The rolling tool for combined boring tools as claimed in claim 5, wherein bearing balls are provided between the bakelite locknut and the cage.
7. The combination boring tool rolling tool of claim 1 wherein the rollers of the rolling section are tapered rollers with the large end disposed toward the cutting section and the small end of the pressure cone disposed toward the cutting section; the rolling portion with still be equipped with elasticity portion between the supporting part, elasticity portion supports cover and elastic component adjustment ring including the cover body, elastic component, the elastic component supports the ways and establishes the dabber, the elastic component sets up the cover body with between the elastic component supports the cover, one end with the elastic component supports the cover and offsets, the other end with the elastic component adjustment ring offsets, the cover body orientation one side of rolling retainer is equipped with and holds the chamber, hold the chamber with rolling retainer looks adaptation, the rolling retainer with the elastic component adjustment ring offsets, and the elastic component effect gets into down or withdraws from hold the chamber.
8. The rolling cutter for combined boring cutters as claimed in claim 7, wherein a third bearing is provided between the retainer and the elastic member support sleeve, the sleeve body is provided outside the elastic member support sleeve, and a fourth bearing is provided between the sleeve body and the elastic member support sleeve; and a fifth bearing is arranged between the elastic piece adjusting ring and the rolling retainer.
9. The combined boring cutter rolling tool according to claim 1 or 2, wherein the end of the mandrel away from the cutting part is provided with a flat taper shank and an annular boss, and the annular boss is used for being connected with the main rod body through a stripping nut.
CN201910588658.1A 2019-07-02 2019-07-02 Combined boring cutter rolling tool Active CN110270698B (en)

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Application Number Priority Date Filing Date Title
CN201910588658.1A CN110270698B (en) 2019-07-02 2019-07-02 Combined boring cutter rolling tool

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Application Number Priority Date Filing Date Title
CN201910588658.1A CN110270698B (en) 2019-07-02 2019-07-02 Combined boring cutter rolling tool

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CN110270698A CN110270698A (en) 2019-09-24
CN110270698B true CN110270698B (en) 2020-08-25

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CN204159894U (en) * 2014-05-22 2015-02-18 邹城市辰星煤机制修有限公司 Compound tool is rolled in a kind of boring
CN204639166U (en) * 2015-05-18 2015-09-16 无锡亿利大机械有限公司 Gang tool is rolled in boring
CN107900687A (en) * 2017-12-23 2018-04-13 中北大学 A kind of deep-hole boring rolls Compound Machining instrument

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CN200981155Y (en) * 2006-12-19 2007-11-28 郑州煤矿机械集团有限责任公司 Cylinder inner hole boring and rolling device
CN101954612A (en) * 2010-01-26 2011-01-26 昆山维萨阀门有限公司 Rolling knife
CN204159894U (en) * 2014-05-22 2015-02-18 邹城市辰星煤机制修有限公司 Compound tool is rolled in a kind of boring
CN204639166U (en) * 2015-05-18 2015-09-16 无锡亿利大机械有限公司 Gang tool is rolled in boring
CN107900687A (en) * 2017-12-23 2018-04-13 中北大学 A kind of deep-hole boring rolls Compound Machining instrument

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