阅读说明：本技术 一种超精密曲面磁流变加工装置及方法 (Ultraprecise curved surface magnetorheological processing device and method ) 是由 吴金忠 杨永 陈俊达 程荣波 周亮 黄蓓 于 2021-08-25 设计创作，主要内容包括：本发明提供一种超精密曲面磁流变加工装置及方法,包括夹具、工件、移动组件、摆动机构、自调机构、曲面模具以及磁场调节器,所述移动组件下端安装摆动机构,所述摆动机构的活动端设置竖向布置的自调机构,所述自调机构背离摆动机构一端连接磁场调节器且磁场调节器与曲面模具上端开设的曲面槽内壁贴合布置,所述曲面模具下端设置工件并延伸入工件的待加工曲面内,且曲面模具的外表面与工件的待加工曲面之间形成磁流变液腔,所述工件夹持安装在与机床底部旋转机构连接的夹具上,与现有技术相比,本发明具有如下的有益效果：用于保证磁场调节器与工件上待加工曲面的对应加工位之间距离不变,用于提升加工效果。(The invention provides an ultraprecise curved surface magnetorheological processing device and method, which comprises a clamp, a workpiece, a moving assembly, a swinging mechanism, a self-regulating mechanism, a curved surface mold and a magnetic field regulator, wherein the lower end of the moving assembly is provided with the swinging mechanism, the movable end of the swinging mechanism is provided with the self-regulating mechanism which is vertically arranged, one end of the self-regulating mechanism, which is far away from the swinging mechanism, is connected with the magnetic field regulator, the magnetic field regulator is arranged in a manner of being attached to the inner wall of a curved surface groove formed at the upper end of the curved surface mold, the lower end of the curved surface mold is provided with the workpiece and extends into a curved surface to be processed of the workpiece, a magnetorheological fluid cavity is formed between the outer surface of the curved surface mold and the curved surface to be processed of the workpiece, the workpiece is clamped and arranged on the clamp connected with a rotating mechanism at the bottom of a machine tool, and compared with the prior art, the ultraprecise curved surface magnetorheological processing device has the following beneficial effects: the distance between the magnetic field adjuster and the corresponding processing position of the curved surface to be processed on the workpiece is unchanged, and the processing effect is improved.)

1. An ultraprecise curved surface magnetorheological processing device is characterized in that: comprises a clamp (1), a workpiece (2), a moving component, a swinging mechanism (7), a self-adjusting mechanism (8), a curved surface die (9) and a magnetic field regulator (85), the lower end of the moving component is provided with a swinging mechanism (7), the movable end of the swinging mechanism (7) is provided with a self-adjusting mechanism (8) which is vertically arranged, one end of the self-adjusting mechanism (8) departing from the swing mechanism (7) is connected with a magnetic field regulator (85), the magnetic field regulator (85) is attached to the inner wall of a curved surface groove (91) formed in the upper end of the curved surface mold (9), the lower end of the curved surface die (9) is provided with a workpiece (2) and extends into a curved surface to be processed of the workpiece (2), and a magnetorheological fluid cavity (21) is formed between the outer curved surface of the curved surface die (9) and the curved surface to be processed of the workpiece (2), and the workpiece (2) is clamped and installed on a clamp (1) connected with a rotating mechanism at the bottom of the machine tool.

2. The ultraprecise curved surface magnetorheological processing apparatus according to claim 1, wherein: the moving assembly comprises a U-shaped frame (4) connected with a machine tool top lifting mechanism, a longitudinally-arranged screw rod (6) is rotatably connected inside the U-shaped frame (4), the fixed end of a driver is fixedly connected to the rear end of the U-shaped frame (4), the output shaft of the driver is fixedly connected with the screw rod (6), the annular end of the screw rod (6) is connected with a nut seat (3) through a ball-nut pair, the nut seat (3) is slidably connected inside the U-shaped frame (4), a longitudinally-arranged guide piece is fixedly connected inside the U-shaped frame (4), the guide piece is positioned on the side of the screw rod (6), penetrates through the nut seat (3) and is slidably connected with the nut seat (3), the lower end of the nut seat (3) is fixedly connected with the fixed end of a swinging mechanism (7), and the middle positions of the left end and the right end of the U-shaped frame (4) are fixedly connected with the transverse part of a connecting frame (41) with the cross section of which is L-shaped, the vertical parts of the two connecting frames (41) are respectively fixed at the left end and the right end of the curved surface die (9).

3. The ultraprecise curved surface magnetorheological processing apparatus according to claim 2, wherein: swing mechanism (7) are including fixing the stiff end in swing drive device (71) at nut seat (3) lower extreme, nut seat (3) lower extreme fixed connection U template (72) and U template (72) are in swing drive device (71) outside, but inside movable plate (73) and the movable plate (73) extension of U template (72) lower extreme movable mounting horizontal hunting, the output shaft of swing drive device (71) runs through movable plate (73) and U template (72) and is connected with U template (72) rotation, and the output shaft and movable plate (73) fixed connection of swing drive device (71), movable plate (73) lower extreme fixed connection is from adjusting mechanism (8).

4. The ultraprecise curved surface magnetorheological processing apparatus according to claim 3, wherein: self-modulation mechanism (8) are including fixing sleeve (82) at fly leaf (73) lower extreme, inside sleeve (82) lower extreme movable mounting connecting piece and the connecting piece extend into sleeve (82), connecting piece upper end fixed connection piston (87) and piston (87) movable mounting are inside sleeve (82), the inside top fixed connection first magnet (81) of sleeve (82), piston (87) upper end fixed connection second magnet (83), second magnet (83) set up under first magnet (81) and second magnet (83) mutual repulsion arrange, connecting piece lower extreme fixed connection magnetic field regulator (85).

5. The ultraprecise curved surface magnetorheological processing apparatus according to claim 4, wherein: the clamping groove is formed in the lower side of the annular inner wall of the sleeve (82), a clamping spring (86) used for limiting the piston (87) is assembled on the clamping groove, a protection piece is attached to the upper end of the clamping spring (86) and is bonded to the lower end of the piston (87), and the protection piece is sleeved on the outer end of the connecting piece.

6. The ultraprecise curved surface magnetorheological processing apparatus according to claim 1, wherein: the magnetic field regulator (85) is characterized in that the lower side edge position of the outer end of the magnetic field regulator (85) is fixedly connected with a ball head piece (851) with a fan-shaped cross section, a first rolling piece is uniformly embedded in the curved surface end of the ball head piece (851), and the first rolling piece is attached to the inner wall of the curved surface groove (91) for arrangement.

7. The ultraprecise curved surface magnetorheological processing apparatus according to claim 1, wherein: the front end and the rear end of the curved surface mold (9) are fixedly connected with circulating pipes (92), an opening part of each circulating pipe (92) penetrates through the curved surface mold (9) and is communicated with the magnetorheological fluid cavity (21), one circulating pipe (92) deviates from one end of the curved surface mold (9) and is communicated with an opening end of a fixed extraction device, an outlet end of the extraction device is communicated with an inlet end of a processing device for stirring, constant temperature and constant viscosity processing of the magnetorheological fluid, and an outlet of the processing device is communicated with the other circulating pipe (92).

8. The ultraprecise curved surface magnetorheological processing apparatus according to claim 1, wherein: curved surface mould (9) are inlayed towards work piece (2) one end edge position equidistance and are a plurality of second rolling member and the laminating of second rolling member of circular arrangement in work piece (2) upper end, the second rolling member sets up in magnetorheological suspensions chamber (21) outside of work piece (2), curved surface mould (9) annular outer end is rotated through the bearing and is connected ring (95), ring (95) lower extreme sets up protection piece and is in work piece (2) upper end, the protection piece inboard sets up a plurality of second rolling member.

9. A magnetorheological processing method for an ultraprecise curved surface is characterized by comprising the following steps: the method comprises the following steps:

a, proofreading: clamping a workpiece (2) by using a clamp (1), starting a machine tool, resetting the machine tool, setting the initial frequency of magnetorheological fluid flow, ultrasonic vibration and rotation speed, downwards moving a moving assembly by using a lifting mechanism, enabling a curved surface die (9) to be abutted against the workpiece (2) and adjusted in place, performing calibration and inspection on parts, and setting the initial values and the initial positions of other devices of the machine tool;

b, compiling a numerical control machining program: firstly, acquiring a workpiece (2) to be machined to carry out accurate in-situ measurement, acquiring required data, carrying out big data analysis and processing, forming a measurement model, inputting the data of the measurement model into a numerical control system of a machine tool, analyzing and calculating to obtain an out-of-tolerance value between the measurement model and a design model of the workpiece (2), namely machining allowance, after the machining allowance is obtained, selecting a machining track of the workpiece (2) to be machined, setting other parameters required to be set in the machining process according to the machining allowance and the machining track, inputting the machining track, generating a numerical control machining program, and waiting for machining;

and c, recycling the magnetorheological fluid: firstly, starting processing equipment, carrying out stirring, constant temperature and constant viscosity processing on magnetorheological fluid, then starting extraction equipment, conveying the magnetorheological fluid in the processing equipment into a magnetorheological fluid cavity (21) through a circulating pipe (92) by utilizing the extraction equipment, filling the magnetorheological fluid in the magnetorheological fluid cavity (21) with the magnetorheological fluid, contacting the magnetorheological fluid in the magnetorheological fluid cavity (21) with an opening of the circulating pipe (92), and returning the magnetorheological fluid to the processing equipment along the other circulating pipe (92) so as to form the circulation use of the magnetorheological fluid;

d, processing: firstly, the driver, the swing driving device (71), the magnetic field regulator (85) and the rotating mechanism are started, the driver drives the screw rod (6) to rotate, so that the nut seat (3) moves back and forth in a circulating way, further leading the swinging mechanism (7) and the self-adjusting mechanism (8) to move back and forth circularly, leading the magnetic field regulator (85) to move back and forth circularly, meanwhile, the swing driving device (71) drives the movable plate (73) and the self-adjusting mechanism (8) to swing left and right, further leading the magnetic field regulator (85) to swing left and right, leading the magnetic field regulator (85) to uniformly and comprehensively move along the inner wall of a curved surface groove (91) on the curved surface die (9) under the action of the self-regulating mechanism (8), simultaneously leading the rotating mechanism to drive the clamp (1) to rotate, further rotating the workpiece (2), wherein the magnetorheological fluid flowing in the magnetorheological fluid cavity (21) can process the curved surface to be processed of the workpiece (2);

e, detecting: the machined workpiece (2) is taken out from the clamp (1), the machined workpiece (2) is inspected, the qualified workpiece is put in a warehouse, and if the qualified workpiece is not inspected, the machining is carried out again.

Technical Field

The invention discloses an ultraprecise curved surface magnetorheological processing device and method, and belongs to the technical field of magnetorheological processing.

Background

With the rapid development of high and new technology industries such as optics, electronics, communication and the like, more and more curved surface parts are widely applied. Especially in the electronic industry, the design of screens and housings of many electronic products such as mobile phones and watches has gradually tended to be curved, however, these curved parts are hard and brittle materials and have high quality surface roughness, which puts strict requirements on curved surface processing and polishing technology. Magnetorheological processing is an effective ultra-precision processing technology, and is realized by hardening magnetorheological polishing liquid in a magnetic field into a flexible polishing die and applying relative motion between the polishing die and a workpiece.

In the ultraprecise curved surface magnetorheological processing device in the prior art, a magnetic field regulator is used for generating a magnetic field and controlling a flexible polishing die to realize processing operation, but when a curved surface is processed in an omnibearing manner, the magnetic field regulator and the flexible polishing die move along a processing surface, and in the moving process, the distance between the magnetic field regulator and a corresponding processing position of a curved surface workpiece is changed, so that the excitation gap is changed, the formation of the flexible polishing die is influenced, and the processing effect is finally influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an ultraprecise curved surface magnetorheological processing device and method to solve the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an ultraprecise curved surface magnetic current becomes processingequipment, includes anchor clamps, work piece, removal subassembly, swing mechanism, self-modulation mechanism, curved surface mould and magnetic field regulator, remove subassembly lower extreme installation swing mechanism, swing mechanism's expansion end sets up vertical arrangement's self-modulation mechanism, self-modulation mechanism deviates from the curved surface inslot wall laminating of swing mechanism one end connection magnetic field regulator and curved surface mould upper end and seting up and arranges, curved surface mould lower extreme sets up the work piece and extends into in the curved surface of treating of work piece, and the outer curved surface of curved surface mould and the work piece treat and form the magnetic current becomes the liquid chamber between the curved surface of processing, the work piece centre gripping is installed on the anchor clamps of being connected with lathe bottom rotary mechanism.

Further, the moving assembly comprises a U-shaped frame connected with a machine tool top lifting mechanism, a longitudinally-arranged screw rod is connected with the inside of the U-shaped frame in a rotating mode, the fixed end of a driver is fixedly connected with the rear end of the U-shaped frame, the output shaft of the driver is fixedly connected with the screw rod, the annular end of the screw rod is connected with a nut seat through a ball nut pair, the nut seat is connected with the nut seat in a sliding mode and is connected to the inside of the U-shaped frame, a guide piece is longitudinally arranged on the inside of the U-shaped frame and is located on the side of the screw rod, the guide piece penetrates through the nut seat and is connected with the nut seat in a sliding mode, the lower end of the nut seat is fixedly connected with the fixed end of a swinging mechanism, the transverse portion of the connecting frame which is transversely L-shaped is fixedly connected with the middle portions of the left end and the right end of the U-shaped frame, and the vertical portions of the two connecting frames are respectively fixed to the left end and the right end of the curved surface mold.

Further, swing mechanism is including fixing the stiff end at the swing drive equipment of nut seat lower extreme, nut seat lower extreme fixed connection U template and U template are in the swing drive equipment outside, but U template lower extreme movable mounting horizontal hunting's fly leaf and fly leaf extend into inside the U template, swing drive equipment's output shaft runs through fly leaf and U template and is connected with the U template rotation, and swing drive equipment's output shaft and fly leaf fixed connection, fly leaf lower extreme fixed connection self-modulation mechanism.

Further, the self-adjusting mechanism comprises a sleeve fixed at the lower end of the movable plate, a connecting piece and a connecting piece are movably mounted at the lower end of the sleeve and extend into the sleeve, a piston and a piston are fixedly connected to the upper end of the connecting piece and movably mounted inside the sleeve, a first magnet is fixedly connected to the top end of the inside of the sleeve, a second magnet is fixedly connected to the upper end of the piston, the second magnet is arranged under the first magnet, the first magnet and the second magnet are mutually exclusive, and the lower end of the connecting piece is fixedly connected with the magnetic field adjuster.

Further, the draw-in groove is seted up to sleeve annular inner wall downside, and assembles the jump ring that is used for the restriction piston on the draw-in groove, the laminating of jump ring upper end sets up protection piece and bonds at the piston lower extreme, the protection piece suit is in the connecting piece outer end.

Furthermore, the lower side edge position of the outer end of the magnetic field regulator is fixedly connected with a ball head piece with a sector cross section, a first rolling piece is uniformly embedded in the curved surface end of the ball head piece, and the first rolling piece is attached to the inner wall of the curved surface groove.

Furthermore, both ends all fixed connection circulating pipe around the curved surface mould, and the opening of circulating pipe pass the curved surface mould and communicate with magnetic current becomes the sap cavity, one the circulating pipe deviates from curved surface mould one end intercommunication fixed extraction equipment's open end, and extraction equipment's exit end with be used for stirring, the inlet end intercommunication of the processing equipment of constant temperature and the processing of constant viscosity to magnetic current becomes liquid, processing equipment's export and another circulating pipe intercommunication.

Furthermore, a plurality of second rolling members which are circularly arranged are embedded in the edge position of one end, facing the workpiece, of the curved surface die at equal intervals, the second rolling members are attached to the upper end of the workpiece, the second rolling members are arranged on the outer side of a magnetorheological fluid cavity of the workpiece, the annular outer end of the curved surface die is rotatably connected with a circular ring through a bearing, a protection member is arranged at the lower end of the circular ring and located at the upper end of the workpiece, and a plurality of second rolling members are arranged on the inner side of the protection member.

A magnetorheological processing method for an ultraprecise curved surface is characterized by comprising the following steps: the method comprises the following steps:

a, proofreading: firstly, clamping a workpiece by using a clamp, starting a machine tool, resetting the machine tool, setting the initial frequency of magnetorheological fluid flow, ultrasonic vibration and rotation speed, then utilizing a lifting mechanism to enable a moving assembly to move downwards, enabling a curved surface die to be abutted against the workpiece and adjusted in place, then carrying out proofreading and checking on each part, and setting the initial values and the initial positions of other devices of the machine tool;

b, compiling a numerical control machining program: firstly, acquiring a workpiece to be machined to perform accurate in-situ measurement, acquiring required data, analyzing and processing big data, forming a measurement model, inputting the data of the measurement model into a numerical control system of a machine tool, analyzing and calculating to obtain an out-of-tolerance value between the measurement model and a design model of the workpiece, namely machining allowance, after the machining allowance is obtained, selecting a machining track of workpiece machining, setting other parameters required to be set in the machining process according to the machining allowance and the machining track, inputting the machining track, generating a numerical control machining program, and waiting for machining;

and c, recycling the magnetorheological fluid: firstly, starting processing equipment, carrying out stirring, constant temperature and constant viscosity processing on the magnetorheological fluid, then starting extraction equipment, conveying the magnetorheological fluid in the processing equipment into a magnetorheological fluid cavity through a circulating pipe by utilizing the extraction equipment, filling the magnetorheological fluid into the magnetorheological fluid cavity, enabling the magnetorheological fluid in the magnetorheological fluid cavity to be in contact with an opening of the circulating pipe, and then enabling the magnetorheological fluid to return to the processing equipment along another circulating pipe, thereby forming the cycle use of the magnetorheological fluid;

d, processing: the method comprises the steps that a driver, a swing driving device, a magnetic field regulator and a rotating mechanism are started firstly, the driver drives a screw rod to rotate, so that a nut seat moves back and forth in a circulating mode, further the swing mechanism and a self-regulating mechanism move back and forth in a circulating mode, further the magnetic field regulator moves back and forth in a circulating mode, meanwhile, the swing driving device drives a movable plate and the self-regulating mechanism to move left and right in a swinging mode, further the magnetic field regulator moves left and right in a swinging mode, under the action of the self-regulating mechanism, the magnetic field regulator moves uniformly and comprehensively along the inner wall of a curved surface groove in a curved surface die, meanwhile, the rotating mechanism drives a clamp to rotate, further a workpiece rotates, and at the moment, magnetorheological fluid flowing in a magnetorheological fluid cavity can process a curved surface to be processed of the workpiece;

e, detecting: and taking out the machined workpiece from the fixture, inspecting the machined workpiece, warehousing the qualified workpiece, and re-machining the workpiece if the qualified workpiece is not inspected.

The invention has the beneficial effects that: the invention relates to an ultraprecise curved surface magnetorheological processing device and method.A servo motor, a lead screw and a nut seat are matched for use, a magnetic field regulator can move back and forth in a circulating manner, a swing driving device is matched for use with a movable plate, the magnetic field regulator can swing left and right, the magnetic field regulator can move up and down in a matching manner through a straight rod, a piston and a sleeve, the magnetic field regulator can move in a covering manner along the inner wall of a curved surface groove on a curved surface die, and the piston is pressed downwards along the sleeve under the action of repulsive force between a first magnet and a second magnet, so that the magnetic field regulator is always abutted against the inner wall of the curved surface groove, the distance between the magnetic field regulator and a corresponding processing station of a curved surface to be processed on a workpiece is ensured to be unchanged, and the processing effect is improved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of an ultraprecise curved surface magnetorheological processing apparatus according to the present invention;

FIG. 2 is a schematic view of a nut seat of the ultraprecise curved surface magnetorheological processing apparatus of the present invention;

FIG. 3 is a schematic view of a swing mechanism of an ultraprecise curved magnetorheological processing apparatus according to the present invention;

FIG. 4 is a schematic diagram of a self-adjusting mechanism of an ultraprecise curved magnetorheological processing apparatus according to the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a cross-sectional view of a curved mold of an ultra-precise curved magnetorheological processing apparatus of the present invention;

fig. 7 is an enlarged view of a portion B in fig. 6.

In the figure: 1-clamp, 2-workpiece, 3-nut seat, 4-U-shaped frame, 5-servo motor, 6-lead screw, 7-swing mechanism, 8-self-regulation mechanism, 9-curved surface die, 21-magnetorheological fluid cavity, 31-round bar, 41-connecting frame, 71-swing driving device, 72-U-shaped plate, 73-movable plate, 81-first magnet, 82-sleeve, 83-second magnet, 84-straight bar, 85-magnetic field regulator, 86-snap spring, 87-piston, 91-curved surface groove, 92-circulating pipe, 93-first eyeball, 94-rubber ring pad, 95-round ring, 851-bulb piece and 852-second eyeball.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1-7, the present invention provides a technical solution: an ultraprecise curved surface magnetorheological processing device comprises a clamp 1, a workpiece 2, a moving assembly, a curved surface mold 9 and a magnetic field regulator 85, wherein the moving assembly comprises a U-shaped frame 4 connected with a lifting mechanism at the top of a machine tool, an installation carrier can be provided for a screw rod 6, a round rod 31 and a servo motor 5 through the U-shaped frame 4, the U-shaped frame 4 is internally and rotatably connected with the screw rod 6 which is longitudinally arranged, a nut seat 3 can be driven to do linear motion through the screw rod 6, the rear end of the U-shaped frame 4 is fixedly connected with the fixed end of the servo motor 5, the output shaft of the servo motor 5 is fixedly connected with the screw rod 6, the servo motor 5 can drive the screw rod 6 to rotate, the annular end of the screw rod 6 is connected with the nut seat 3 through a ball nut pair, the nut seat 3 is slidably connected inside the U-shaped frame 4, the installation carrier can be provided for a swinging mechanism 7 through the nut seat 3, the U-shaped frame 4 is internally and fixedly connected with the round rod 31 which is longitudinally arranged and the round rod 31 is positioned at the side of the screw rod 6, the movement of the nut seat 3 can be guided through a round rod 31, the round rod 31 penetrates through the nut seat 3 and is connected with the nut seat 3 in a sliding manner, the lower end of the nut seat 3 is fixedly connected with the fixed end of a swing mechanism 7, the middle position of the left end and the right end of a U-shaped frame 4 is fixedly connected with the transverse part of a connecting frame 41 with an L-shaped cross section, a curved surface die 9 is fixedly connected with the U-shaped frame 4 through the connecting frame 41, the vertical parts of the two connecting frames 41 are respectively fixed at the left end and the right end of the curved surface die 9, the lower end of the curved surface die 9 is provided with a workpiece 2 and extends into a curved surface to be processed of the workpiece 2, a magnetorheological fluid cavity 21 is formed between the outer curved surface of the curved surface die 9 and the curved surface to be processed of the workpiece 2, the workpiece 2 is clamped and installed on a clamp 1 connected with a rotating mechanism at the bottom of a machine tool, a plurality of first bovine eyeballs 93 which are circularly arranged at equal intervals and the edge position of one end of the curved surface die 9 facing the workpiece 2 is attached to the upper end of the workpiece 2, through first eyeball 93, be convenient for work piece 2 to carry out the rotation operation, first eyeball 93 sets up in the magnetic current becomes liquid chamber 21 outside of work piece 2, specifically, start servo motor 5, and then drive lead screw 6 rotatory, because of lead screw 6 passes through ball nut pair with nut seat 3 and is connected, so lead screw 6 rotation can make nut seat 3 along round bar 31 front and back cyclic movement, and then make swing mechanism 7, self-regulating mechanism 8 and magnetic field regulator 85 front and back cyclic movement, be used for the assistance to work piece 2, start lathe bottom rotary mechanism simultaneously, and then drive anchor clamps 1 and rotate, thereby drive work piece 2 and take place the rotation, be used for the processing operation.

As an embodiment of the present invention: the swing mechanism 7 comprises a fixed end of a swing driving device 71 fixed at the lower end of the nut seat 3, the swing driving device 71 can drive a movable plate 73 to swing, the lower end of the nut seat 3 is fixedly connected with a U-shaped plate 72, the U-shaped plate 72 is positioned at the outer side of the swing driving device 71, an installation carrier can be provided for the movable plate 73 through the U-shaped plate 72, the movable plate 73 capable of swinging left and right is movably installed at the lower end of the U-shaped plate 72, the movable plate 73 extends into the U-shaped plate 72, an output shaft of the swing driving device 71 penetrates through the movable plate 73 and the U-shaped plate 72 and is rotatably connected with the U-shaped plate 72, the output shaft of the swing driving device 71 is fixedly connected with the movable plate 73, the lower end of the movable plate 73 is fixedly connected with a self-adjusting mechanism 8, an installation carrier is provided for the self-adjusting mechanism 8 through the movable plate 73, one end of the self-adjusting mechanism 8, which is far away from the movable plate 73, is connected with a magnetic field adjuster 85, and the magnetic field adjuster 85 is arranged in a way of being attached to the inner wall of a curved groove 91 formed at the upper end of the mold 9, the lower side edge position of the outer end of the magnetic field adjuster 85 is fixedly connected with a ball head piece 851 with a fan-shaped cross section, an installation carrier can be provided for a second eyeball 852 through the ball head piece 851, the second eyeball 852 is uniformly embedded in the curved surface end of the ball head piece 851, the second eyeball 852 is attached to the inner wall of the curved surface groove 91, the second eyeball 852 is used for assisting the magnetic field adjuster 85 to move on the inner wall of the curved surface groove 91 on the curved surface mold 9, specifically, the swing driving device 71 is started, the movable plate 73 can be driven to swing left and right, and then the self-adjusting mechanism 8 and the magnetic field adjuster 85 swing left and right.

As an embodiment of the present invention: the self-adjusting mechanism 8 comprises a sleeve 82 fixed at the lower end of the movable plate 73, a straight rod 84 is movably installed at the lower end of the sleeve 82, the straight rod 84 extends into the sleeve 82, an installation carrier is provided for the piston 87 and the magnetic field adjuster 85 through the straight rod 84, the piston 87 is fixedly connected to the upper end of the straight rod 84, the piston 87 is movably installed inside the sleeve 82, the installation carrier is provided for the second magnet 83 through the piston 87, the first magnet 81 is fixedly connected to the top end inside the sleeve 82, the second magnet 83 is fixedly connected to the upper end of the piston 87, the second magnet 83 is arranged right below the first magnet 81, the first magnet 81 and the second magnet 83 are arranged in a mutually repulsive manner, the first magnet 81 and the second magnet 83 are used in a matched manner for pressing the piston 87 and the straight rod 84, the magnetic field adjuster 85 can always abut against the inner wall of the curved groove 91 on the curved mold 9, the processing effect is improved, the lower end of the straight rod 84 is fixedly connected with the magnetic field regulator 85, the lower side of the annular inner wall of the sleeve 82 is provided with a clamping groove, an installation space can be provided for the clamping spring 86 through the clamping groove, the clamping spring 86 used for limiting the piston 87 is assembled on the clamping groove, the piston 87 can be limited and installed in the sleeve 82 through the clamping spring 86, the piston 87 can also be prevented from falling off from the sleeve 82, the upper end of the clamping spring 86 is attached with a rubber pad, the rubber pad is adhered to the lower end of the piston 87, the rubber pad is arranged on the piston 87, the piston 87 and the clamping spring 86 are effectively prevented from being collided, the safety is good, the rubber pad is sleeved at the outer end of the straight rod 84, particularly, when the moving assembly is matched with the swing mechanism 7, the magnetic field regulator 85 can be subjected to overall covering movement along the inner wall of the curved groove 91 on the curved surface mold 9, when the magnetic field regulator 85 moves from the low position to the high position of the curved groove 91, the magnetic field regulator 85 is moved upwards to drive the straight rod 84 to move upwards and further drive the piston 87 to move upwards along the sleeve 82, and the second magnet 83 is moved upwards, so that the first magnet 81 and the second magnet 83 are close to each other, and a repulsive force is generated between the first magnet 81 and the second magnet 83, when the magnetic field regulator 85 moves from the high position to the low position of the curved groove 91, the piston 87 moves downwards along the sleeve 82 under the action of the repulsive force formed between the first magnet 81 and the second magnet 83, so that the straight rod 84 and the magnetic field regulator 85 move downwards, the magnetic field regulator 85 is always abutted against the inner wall of the curved groove 91, the distance between the magnetic field regulator 85 and the corresponding processing position of the curved surface to be processed on the workpiece 2 is ensured to be unchanged, and the processing effect is improved.

As an embodiment of the present invention: the front end and the rear end of the curved surface mold 9 are fixedly connected with circulating pipes 92, the opening parts of the circulating pipes 92 penetrate through the curved surface mold 9 and are communicated with the magnetorheological fluid cavity 21, the two circulating pipes 92 are matched for use, magnetorheological fluid in the magnetorheological fluid cavity 21 can flow circularly, one end of one circulating pipe 92, which is far away from the curved surface mold 9, is communicated with the opening end of a fixed water pump, the magnetorheological fluid can be pumped by the water pump to be recycled, the outlet end of the water pump is communicated with the inlet end of processing equipment for stirring, constant temperature and constant viscosity processing of the magnetorheological fluid, the magnetorheological fluid can be processed by the processing equipment, the magnetorheological fluid is convenient to be reused, the outlet of the processing equipment is communicated with the other circulating pipe 92, the annular outer end of the curved surface mold 9 is rotatably connected with a circular ring 95 through a bearing, an installation carrier can be provided for a rubber ring pad 94 by the circular ring 95, the lower end of the circular ring 95 is provided with the rubber ring pad 94, and the rubber ring pad 94 is positioned at the upper end of a workpiece 2, the circular ring 95 is used in cooperation with the rubber ring pad 94 to realize the sealing connection between the curved surface mold 9 and the workpiece 2, and effectively avoid leakage of the magnetorheological fluid, the inner side of the rubber ring pad 94 is provided with a plurality of first eyeball 93, specifically, the processing equipment is started firstly, can stir, keep the temperature and treat the magnetorheological fluid with constant viscosity, then the water pump is started, and then the magnetorheological fluid treated in the processing equipment is conveyed into the magnetorheological fluid cavity 21 through a circulating pipe 92, so that the magnetorheological fluid cavity 21 is filled with the magnetorheological fluid, the magnetorheological fluid in the magnetorheological fluid cavity 21 is contacted with an opening of the circulating pipe 92, and then the magnetorheological fluid returns to the processing equipment along the other circulating pipe 92, and further, the cycle use of the magnetorheological fluid is formed.

An ultraprecise curved surface magnetorheological processing method comprises the following steps:

a, proofreading: firstly, clamping a workpiece 2 by using a clamp 1, starting a machine tool, resetting the machine tool, setting initial frequencies of magnetorheological fluid flow, ultrasonic vibration and rotation speed, then utilizing a lifting mechanism to enable a moving assembly to move downwards, enabling a curved surface die 9 to be abutted against the workpiece 2 and adjusted in place, then carrying out proofreading and checking on each part, and setting initial values and initial positions of other devices of the machine tool;

b, compiling a numerical control machining program: firstly, acquiring a workpiece 2 to be machined to carry out accurate in-situ measurement, acquiring required data, carrying out big data analysis and processing, forming a measurement model, inputting the data of the measurement model into a numerical control system of a machine tool, analyzing and calculating to obtain an out-of-tolerance value between the measurement model and a design model of the workpiece 2, namely machining allowance, after the machining allowance is obtained, selecting a machining track of the workpiece 2, setting other parameters required to be set in the machining process according to the machining allowance and the machining track, inputting the machining track, generating a numerical control machining program, and waiting for machining;

and c, recycling the magnetorheological fluid: firstly, starting the treatment equipment, stirring, keeping the temperature and treating the magnetorheological fluid at constant viscosity, then starting the water pump, conveying the magnetorheological fluid in the treatment equipment into the magnetorheological fluid cavity 21 through one circulating pipe 92 by using the water pump, fully filling the magnetorheological fluid into the magnetorheological fluid cavity 21, contacting the magnetorheological fluid in the magnetorheological fluid cavity 21 with an opening of the circulating pipe 92, and returning the magnetorheological fluid to the treatment equipment along the other circulating pipe 92, thereby forming the cycle use of the magnetorheological fluid;

d, processing: the servo motor 5, the swing driving device 71, the magnetic field regulator 85 and the rotating mechanism are started firstly, the servo motor 5 drives the screw rod 6 to rotate, the nut seat 3 is enabled to move back and forth in a circulating manner, the swing mechanism 7 and the self-regulating mechanism 8 are enabled to move back and forth in a circulating manner, the magnetic field regulator 85 is enabled to move back and forth in a circulating manner, meanwhile, the swing driving device 71 drives the movable plate 73 and the self-regulating mechanism 8 to move left and right in a swinging manner, the magnetic field regulator 85 is enabled to move left and right in a swinging manner, the magnetic field regulator 85 moves uniformly and comprehensively along the inner wall of the curved surface groove 91 on the curved surface mold 9 under the action of the self-regulating mechanism 8, meanwhile, the rotating mechanism drives the clamp 1 to rotate, further, the workpiece 2 is enabled to rotate, and at the time, the magnetorheological fluid flowing in the magnetorheological fluid cavity 21 can process the curved surface to be processed of the workpiece 2;

e, detecting: the machined workpiece 2 is taken out from the fixture 1, the machined workpiece 2 is checked, the qualified workpiece is put in a warehouse, and if the qualified workpiece is not checked, the machining is carried out again.

It is well within the skill of those in the art to implement and protect the present invention without undue experimentation and without undue experimentation that the present invention is directed to software and process improvements.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.