CN103722342A - Spherical rolling and pressing cutter - Google Patents
Spherical rolling and pressing cutter Download PDFInfo
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- CN103722342A CN103722342A CN201410034303.5A CN201410034303A CN103722342A CN 103722342 A CN103722342 A CN 103722342A CN 201410034303 A CN201410034303 A CN 201410034303A CN 103722342 A CN103722342 A CN 103722342A
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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
- B23P9/00—Treating 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
- B23P9/02—Treating or finishing by applying pressure, e.g. knurling
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Abstract
The invention discloses a spherical rolling and pressing cutter which comprises a cutter handle, wherein a connecting head is arranged at the head part of the cutter handle; a guide rod connected with a fixing rod on a machine tool is rotatably arranged at one end of the connecting head; a cutter head rotating in the same angle as the guide rod is arranged at the other end of the connecting head; a rolling and pressing head is fixed on the cutter head; a rolling and pressing ball retainer is slantly mounted on the rolling and pressing head; a rolling and pressing ball is mounted at the head part of the rolling and pressing ball retainer in a rolling manner; an oil inlet channel is formed in the cutter handle; an oil inlet is formed in the end part of the oil inlet channel; a connecting channel is formed in the connecting head; an oil outlet channel is formed in the rolling and pressing head; the oil inlet channel, the connecting channel and the oil outlet channel are connected to form an oil passing channel; oil flushing openings are uniformly formed in the periphery of the rolling and pressing ball retainer. The spherical rolling and pressing cutter has the advantage that the cutter head and the guide rod can rotate in the same angle along with machining tracks during a machining process, so that cutting point positions of the rolling and pressing ball and a machined workpiece are always kept unchanged. Thus, the nonuniform stress caused by the changes of the cutting points during the machining process is avoided. As a result, the machining precision is improved.
Description
Technical field
The present invention relates to the technical field of machine tool, especially refer to a kind of ball-type rolling depression cutter.
Background technology
Machine tooling refers to carries out raw-material processing and fabricating with lathe, and machine tooling can be divided into engine lathe processing and lathe in machining according to the difference of lathe.Along with the development of machine tooling technology, numerically controlled lathe has replaced engine lathe gradually.Use lathe in machining not only to improve the production effect of part, product, also improved the precision of processing, to meet the process requirements of become more meticulous processing and precision component.
Rolling depression cutter is the principle of utilizing mechanical presses, obtains bright and clean if a kind of machinery of the metal surface of mirror is without the plastic processing method of cutting.Rolling depression cutter can utilize the plastic deformation of metal at normal temperatures, thereby makes the nao-and micro relief of surface of the work planish the object that reaches change surface structure, mechanical property, shape and size.No matter with which kind of metal working tool, process, at piece surface, always leave fine scraggly tool marks, occur the staggered peak valley phenomenon rising and falling.
Rolling and processing is a kind of pressure polishing processing, be to utilize the cold plasticity feature of metal at normal temperature state, utilize rolling tool to apply certain pressure to surface of the work, make workpiece surface metal produce Plastic Flow, be filled in original residual indentation trough, and reach surface of the work roughness value, reduce.Due to rolled top layer metal plastic deformation, textura epidermoidea's cold hardening and crystal grain are attenuated, form the fibrous of densification, and form residual stress layer, improve hardness and intensity, thereby improved wearability, corrosion resistance and the conformability of surface of the work.Roll extrusion is a kind of plastic processing method without cutting, and therefore this method can reach polishing processing and two kinds of objects of strengthening simultaneously, is that grinding, turning cannot be accomplished.
Existing rolling depression cutter, its milled head and handle of a knife are fixed, and along with the carrying out of process, thereby cause the inequality of the application of force, and precision and the quality of impact processing.
Summary of the invention
Technical problem to be solved by this invention is the present situation for prior art, provides simple in structure, and machining accuracy is high, and can remain a kind of ball-type rolling depression cutter of same point of contact contact.
The present invention solves the problems of the technologies described above adopted technical scheme:
A kind of ball-type rolling depression cutter, include handle of a knife, wherein, the head of handle of a knife is provided with connector, one end of this connector is rotated and is provided with the guide rod being connected with the fixed bar on lathe, and its other end is provided with and the cutter head of described guide rod with angular turn, is fixed with milled head on cutter head, this milled head tilts roll extrusion Ball Retainer is installed, and the head of pressure ball retainer rolls roll extrusion ball is installed; On handle of a knife, offer oil-feed path, the end of this oil-feed path is provided with oil-in, offers connecting path in connector, offers fuel-displaced path in milled head, oil-feed path, connecting path and fuel-displaced path were connected to form oily path, and the periphery of roll extrusion Ball Retainer is evenly equipped with rushes hydraulic fluid port; In process, described cutter head 4 keeps roll extrusion ball 61 identical with the point of contact of finished surface with guide rod 3 with angular turn.
The technical measures of optimizing also comprise:
In above-mentioned milled head, be provided with Connection Block, be axially shaped with through hole in this Connection Block, the front portion of Connection Block tilts to be shaped with screw.
The rear portion periphery of above-mentioned roll extrusion Ball Retainer is shaped with external screw thread, and this roll extrusion Ball Retainer is threadedly connected in described screw; The front portion of roll extrusion Ball Retainer offers spherical cavity, and roll extrusion ball can rollably be placed in this spherical cavity.
In above-mentioned through hole, be provided with shower nozzle, the anterior outer peripheral face of this shower nozzle is a conical surface, and shower nozzle central shaft is to being shaped with shoulder hole.
Rear portion in above-mentioned through hole is also provided with spacer shell, and spacer shell central shaft is to being shaped with oil hole, and the periphery cover of this spacer shell is shaped with pad, and the periphery of this pad supports and coordinates with the inwall of milled head.
Above-mentioned milled head is fixed on the rotary head of one end setting of connector, and the outer peripheral face of this rotary head consists of a plane and a face of cylinder, and milled head is fixed in plane by the screw that is distributed in four jiaos.
Above-mentioned connector comprises centerbody, be placed on the sealing shroud of centerbody periphery bottom and be placed on the upper cover on centerbody periphery top, between the middle part of centerbody and the inwall of upper cover, is provided with bearing.
Two star-like sealing rings are set between the top of above-mentioned centerbody and the inwall of upper cover, between two star-like sealing rings, are provided with oil circuit protective sleeve.
The upper surface of above-mentioned sealing shroud is inserted in guide ring, and the lower end of upper cover is shaped with guiding annular groove, and the upper end of guide ring is inserted in this guiding annular groove.
The lower, outer perimeter of above-mentioned centerbody is equipped with shell fragment support ring, on this shell fragment support ring, be equipped with shell fragment, the periphery of shell fragment support ring is provided with guide pin bushing and connecting ring, connecting ring is positioned at the top of guide pin bushing, the lower surface of described guide pin bushing offsets and coordinates with the upper surface of sealing shroud, and the upper surface of connecting ring offsets and coordinates with the lower surface of bearing.
A kind of ball-type rolling depression cutter of the present invention, employing is provided with connector at the head of handle of a knife, one end of this connector is rotated and is provided with the guide rod being connected with the fixed bar on lathe, its other end is provided with and the cutter head of described guide rod with angular turn, on cutter head, be fixed with milled head, this milled head tilts roll extrusion Ball Retainer is installed, and the head of pressure ball retainer rolls roll extrusion ball is installed.In process, roll extrusion ball is made rolling and processing in work piece surface, and cutter head and guide rod along with machining locus with the rotation of angle, thereby the position, point of contact that guarantees roll extrusion ball and workpiece remains constant, effectively avoided because point of contact in process changes the unbalance stress causing, improved the precision of processing.
In process, cold oil enters oil-feed path from oil-in, and is connected to form in oily path inflow roll extrusion Ball Retainer by oil-feed path, connecting path and fuel-displaced path, and finally from rush hydraulic fluid port, ejection is carried out cooling to workpiece; Avoid the excess Temperature of workpiece and affect normally carrying out of processing.
In addition, in the through hole axially arranging, shower nozzle is set in Connection Block, shower nozzle central shaft is to being shaped with shoulder hole, through in the process of this shoulder hole, is subject to the squeezing action of shoulder hole and pressure increases, thereby improves the speed that cold oil sprays from rush hydraulic fluid port at cold oil.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the main TV structure schematic diagram of Fig. 1;
Fig. 3 is the sectional structure schematic diagram of Fig. 2 A-A;
Fig. 4 is I portion enlarged drawing in Fig. 3;
Fig. 5 is the sectional structure schematic diagram of Fig. 2 B-B;
Fig. 6 is II portion enlarged drawing in Fig. 5;
Fig. 7 is that Fig. 1 is to one of workpiece process schematic diagram;
Fig. 8 is two schematic diagrames of Fig. 1 to workpiece process;
Fig. 9 is three schematic diagrames of Fig. 1 to workpiece process.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Be structural representation of the present invention as shown in Figures 1 to 9,
Reference numeral is wherein: handle of a knife 1, oil-feed path 11, oil-in 11a, connector 2, connecting path 21, centerbody 22, sealing shroud 23, upper cover 24, guiding annular groove 24a, bearing 25, star-like sealing ring 26, oil circuit protective sleeve 27, guide ring 28, guide rod 3, cutter head 4, milled head 5, fuel-displaced path 51, roll extrusion Ball Retainer 6, external screw thread 6a, spherical cavity 6b, roll extrusion ball 61, rush hydraulic fluid port 62, Connection Block 7, through hole 7a, screw 7b, shower nozzle 71, conical surface 71a, shoulder hole 71b, spacer shell 72, pad 73, screw 74, rotary head 75, plane 75a, face of cylinder 75b, shell fragment support ring 81, shell fragment 82, guide pin bushing 83, connecting ring 84, workpiece 9.
As shown in Figures 1 to 6,
A kind of ball-type rolling depression cutter of the present invention, include handle of a knife 1, wherein, the head of handle of a knife 1 is provided with connector 2, one end of this connector 2 is rotated and is provided with the guide rod 3 being connected with the fixed bar on lathe, and its other end is provided with and the cutter head 4 of described guide rod 3 with angular turn, is fixed with milled head 5 on cutter head 4, this milled head 5 tilts roll extrusion Ball Retainer 6 is installed, and the head of pressure ball retainer 6 rolls roll extrusion ball 61 is installed; On handle of a knife 1, offer oil-feed path 11, the end of this oil-feed path 11 is provided with oil-in 11a, in connector 2, offer connecting path 21, in milled head 5, offer fuel-displaced path 51, oil-feed path 11, connecting path 21 and fuel-displaced path 51 were connected to form oily path, and the periphery of roll extrusion Ball Retainer 6 is evenly equipped with rushes hydraulic fluid port 62; In process, described cutter head 4 keeps roll extrusion ball 61 identical with the point of contact of finished surface with guide rod 3 with angular turn.
In embodiment, in milled head 5, be provided with Connection Block 7, the interior through hole 7a that is axially shaped with of this Connection Block 7, the front portion of Connection Block 7 tilts to be shaped with screw 7b.
In embodiment, the rear portion periphery of roll extrusion Ball Retainer 6 is shaped with external screw thread 6a, and this roll extrusion Ball Retainer 6 is threadedly connected in described screw 7b; The front portion of roll extrusion Ball Retainer 6 offers spherical cavity 6b, and roll extrusion ball 61 can rollably be placed in this spherical cavity 6b.The diameter of the opening of spherical cavity 6b is less than the diameter of roll extrusion ball 61, guarantees can only in spherical cavity 6b, roll in process, and can from spherical cavity 6b, not come off.
In embodiment, be provided with shower nozzle 71 in through hole 7a, the anterior outer peripheral face of this shower nozzle 71 is a conical surface 71a, and shower nozzle 71 central shafts are to being shaped with shoulder hole 71b.The aperture of shoulder hole 71b reduces gradually, and at cold oil, when the shoulder hole 71b, because aperture reduces gradually, oil pressure will increase gradually, thereby guarantees to have certain impulse force from rushing the cold oil that hydraulic fluid port 62 sprays.
In embodiment, the rear portion in through hole 7a is also provided with spacer shell 72, and spacer shell 72 central shafts were to being shaped with oil hole 72a, and the periphery cover of this spacer shell 72 is shaped with pad 73, and the periphery of this pad 73 supports and coordinates with the inwall of milled head 5.
In embodiment, milled head 5 is fixed on the rotary head 75 of one end setting of connector 2, and the outer peripheral face of this rotary head 75 consists of a plane 75a and a face of cylinder 75b, and milled head 5 is fixed on plane 75a by the screw 74 that is distributed in four jiaos.
In embodiment, connector 2 comprises centerbody 22, be placed on the sealing shroud 23 of centerbody 22 periphery bottoms and be placed on the upper cover 24 on centerbody 22 periphery tops, between the middle part of centerbody 22 and the inwall of upper cover 24, is provided with bearing 25.The two ends of centerbody 22 are connected with guide rod 3 and cutter head 4 respectively, and in process, centerbody 22 rotates and drives guide rod 3 and cutter head 4 to rotate simultaneously.
In embodiment, between the top of centerbody 22 and the inwall of upper cover 24, arrange between 26, two star-like sealing rings 26 of two star-like sealing rings and be provided with oil circuit protective sleeve 27.Two star-like sealing rings 26 are embedded in seal groove respectively, and oil circuit protective sleeve 27 is embedded in two protection groovings between seal groove; Two star-like sealing rings 26 the sealing that can increase between centerbody 22 and upper cover 24 is set, guarantee the reliability of sealing between the two.
In embodiment, the upper surface of sealing shroud 23 is inserted in guide ring 28, and the lower end of upper cover 24 is shaped with guiding annular groove 24a, and the upper end of guide ring 28 is inserted in this guiding annular groove 24a.The setting of guide ring 28 makes the assembling between upper cover 24 and sealing shroud 23 convenient.
In embodiment, the lower, outer perimeter of centerbody 22 is equipped with shell fragment support ring 81, on this shell fragment support ring 81, be equipped with shell fragment 82, the periphery of shell fragment support ring 81 is provided with guide pin bushing 83 and connecting ring 84, connecting ring 84 is positioned at the top of guide pin bushing 83, the lower surface of described guide pin bushing 83 offsets and coordinates with the upper surface of sealing shroud 23, and the upper surface of connecting ring 84 offsets and coordinates with the lower surface of bearing 25.
Operation principle: machining state figure as shown in Figure 7 to 9.
This ball-type rolling depression cutter is applicable to numerically controlled lathe, adds man-hour, carries out the programming of numerically controlled lathe according to the radius of machining of workpiece 9.Add man-hour, the outer end of guide rod 3 is connected with the fixed bar on numerically controlled lathe.
Processing original position as shown in Figure 7, guide rod 3 and cutter head 4 are horizontal, and roll extrusion Ball Retainer 6 is obliquely installed on milled head 5, the roll extrusion ball 61 arranging on roll extrusion Ball Retainer 6 and tangent contact of finished surface of workpiece 9.Oil-in 11a on handle of a knife 1 is connected with oil hydraulic system, after processing starts, cold oil in oil hydraulic system enters oil-feed path 11 from oil-in 11a, and the fuel-displaced path 51 through offering on the vertical connecting path 21 arranging and milled head 5 on connector 2 successively, finally enter in roll extrusion Ball Retainer 6.In milled head 5, cold oil passes through oil through on shoulder hole 71b in centre bore, the shower nozzle 71 on spacer shell 72 and roll extrusion Ball Retainer 6 successively, and in the process of the shoulder hole 71b through in shower nozzle 71, cold oil supercharging is accelerated.Finally, the ejection in hydraulic fluid port 62 of rushing that cold oil arranges from roll extrusion Ball Retainer 6 is carried out cooling to workpiece.
As shown in Figure 8, along with the carrying out of process, handle of a knife 1 is along with machining locus moves down, now, cutter head 4 equidirectional same angular turn and be an angle with horizontal line together with guide rod 3, in cutter head 4 rotation processes, roll extrusion ball 61 is constant with the point of contact that workpiece 9 contacts.
As shown in Figure 9, along with handle of a knife 1 continue move down, same angular turn together with cutter head 4 continues with guide rod 3, the angle between both and horizontal line increases gradually, and the point of contact that roll extrusion ball 61 contacts with workpiece 9 is still constant.Cutter head 4 and guide rod 3 can planar be done the rotation at least 180 ° of angular ranges.
In whole process, cutter head 4 together with guide rod 3 along with machining locus same angular turn, and the point of contact that roll extrusion ball 61 contacts with workpiece 9 is constant all the time, has avoided the decline because change the machining accuracy causing in process because of point of contact.
Most preferred embodiment of the present invention is illustrated, and the various variations of being made by those of ordinary skills or remodeling can not depart from the scope of the present invention.
Claims (10)
1. a ball-type rolling depression cutter, include handle of a knife (1), it is characterized in that: the head of described handle of a knife (1) is provided with connector (2), one end of this connector (2) is rotated and is provided with the guide rod (3) being connected with the fixed bar on lathe, its other end is provided with and the cutter head (4) of described guide rod (3) with angular turn, on described cutter head (4), be fixed with milled head (5), this milled head (5) tilts roll extrusion Ball Retainer (6) is installed, the head of described pressure ball retainer (6) rolls roll extrusion ball (61) is installed, on described handle of a knife (1), offer oil-feed path (11), the end of this oil-feed path (11) is provided with oil-in (11a), in described connector (2), offer connecting path (21), in described milled head (5), offer fuel-displaced path (51), described oil-feed path (11), connecting path (21) and fuel-displaced path (51) were connected to form oily path, and the periphery of described roll extrusion Ball Retainer (6) is evenly equipped with rushes hydraulic fluid port (62), in process, described cutter head (4) keeps roll extrusion ball (61) identical with the point of contact of finished surface with guide rod (3) with angular turn.
2. a kind of ball-type rolling depression cutter according to claim 1, it is characterized in that: in described milled head (5), be provided with Connection Block (7), in this Connection Block (7), be axially shaped with through hole (7a), the front portion of described Connection Block (7) tilts to be shaped with screw (7b).
3. a kind of ball-type rolling depression cutter according to claim 2, it is characterized in that: the rear portion periphery of described roll extrusion Ball Retainer (6) is shaped with external screw thread (6a), this roll extrusion Ball Retainer (6) is threadedly connected in described screw (7b); The front portion of described roll extrusion Ball Retainer (6) offers spherical cavity (6b), and described roll extrusion ball (61) can rollably be placed in this spherical cavity (6b).
4. a kind of ball-type rolling depression cutter according to claim 3, it is characterized in that: in described through hole (7a), be provided with shower nozzle (71), the anterior outer peripheral face of this shower nozzle (71) is a conical surface (71a), and described shower nozzle (71) central shaft is to being shaped with shoulder hole (71b).
5. a kind of ball-type rolling depression cutter according to claim 4, it is characterized in that: the rear portion in described through hole (7a) is also provided with spacer shell (72), described spacer shell (72) central shaft is to being shaped with oil hole (72a), the periphery cover of this spacer shell (72) is shaped with pad (73), and the periphery of this pad (73) supports and coordinates with the inwall of milled head (5).
6. a kind of ball-type rolling depression cutter according to claim 5, it is characterized in that: described milled head (5) is fixed on the rotary head (75) of one end setting of connector (2), the outer peripheral face of this rotary head (75) consists of a plane (75a) and a face of cylinder (75b), and described milled head (5) is fixed in plane (75a) by the screw (74) that is distributed in four jiaos.
7. a kind of ball-type rolling depression cutter according to claim 6, it is characterized in that: described connector (2) comprises centerbody (22), be placed on the sealing shroud (23) of centerbody (22) periphery bottom and be placed on the upper cover (24) on centerbody (22) periphery top, between the middle part of described centerbody (22) and the inwall of upper cover (24), is provided with bearing (25).
8. a kind of ball-type rolling depression cutter according to claim 7; it is characterized in that: between the top of described centerbody (22) and the inwall of upper cover (24), two star-like sealing rings (26) are set, between the star-like sealing ring (26) described in two, are provided with oil circuit protective sleeve (27).
9. a kind of ball-type rolling depression cutter according to claim 8, it is characterized in that: the upper surface of described sealing shroud (23) is inserted in guide ring (28), the lower end of described upper cover (24) is shaped with guiding annular groove (24a), and the upper end of guide ring (28) is inserted in this guiding annular groove (24a).
10. a kind of ball-type rolling depression cutter according to claim 9, it is characterized in that: the lower, outer perimeter of described centerbody (22) is equipped with shell fragment support ring (81), on this shell fragment support ring (81), be equipped with shell fragment (82), the periphery of described shell fragment support ring (81) is provided with guide pin bushing (83) and connecting ring (84), connecting ring (84) is positioned at the top of guide pin bushing (83), the lower surface of described guide pin bushing (83) offsets and coordinates with the upper surface of sealing shroud (23), the upper surface of described connecting ring (84) offsets and coordinates with the lower surface of bearing (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410034303.5A CN103722342B (en) | 2014-01-24 | 2014-01-24 | A kind of ball-type rolling depression cutter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410034303.5A CN103722342B (en) | 2014-01-24 | 2014-01-24 | A kind of ball-type rolling depression cutter |
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| CN103722342A true CN103722342A (en) | 2014-04-16 |
| CN103722342B CN103722342B (en) | 2015-10-14 |
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Cited By (4)
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| CN104384934A (en) * | 2014-09-17 | 2015-03-04 | 山东大学 | Turning-isopressing rolling composite device |
| CN107414406A (en) * | 2016-05-24 | 2017-12-01 | 宁波江丰电子材料股份有限公司 | Knurling apparatus and its application method |
| CN111992746A (en) * | 2020-07-29 | 2020-11-27 | 中国科学院金属研究所 | Processing device for realizing workpiece surface nanocrystallization and processing method for crankshaft device surface gradient nanocrystallization |
| CN113059314A (en) * | 2021-03-23 | 2021-07-02 | 北京理工大学 | Variable angle low temperature lubrication special inner cooling rolling tool |
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| CN111992746A (en) * | 2020-07-29 | 2020-11-27 | 中国科学院金属研究所 | Processing device for realizing workpiece surface nanocrystallization and processing method for crankshaft device surface gradient nanocrystallization |
| CN113059314A (en) * | 2021-03-23 | 2021-07-02 | 北京理工大学 | Variable angle low temperature lubrication special inner cooling rolling tool |
| CN113059314B (en) * | 2021-03-23 | 2022-04-15 | 北京理工大学 | Variable angle low temperature lubrication special inner cooling rolling tool |
| WO2022198999A1 (en) * | 2021-03-23 | 2022-09-29 | 北京理工大学 | Dedicated internal-cooling roller burnishing tool characterized by variable angles and low-temperature lubrication |
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|---|---|
| CN103722342B (en) | 2015-10-14 |
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