Magnetic steel arc embedded high-speed motorized spindle rotor machining equipment

Abstract

The invention relates to the technical field of rotor spindle machining equipment, in particular to magnetic steel arc embedded high-speed motorized spindle rotor machining equipment which comprises a machine body, a pushing device, a turning device and a clamping device. The magnetic steel arc embedded high-speed motorized spindle rotor machining equipment comprises a clamping device, a plurality of detection balls are arranged on the outer surface of the clamping device, a vibration detection mechanism is arranged between the clamping device and the detection balls, a plurality of auxiliary wheels are arranged at the end of the clamping device, and an anti-vibration extrusion mechanism is arranged between the clamping device and the auxiliary wheels. By combining a linear displacement sensor, a synchronous plate and other parts of the vibration detection mechanism, magnetic steel vibration can be converted into a displacement signal capable of being monitored, the problem that turning vibration on the inner side of magnetic steel is difficult to observe is solved, real-time capture of vibration in machining is achieved, and data support is provided for precision control.

Description

TECHNICAL FIELD

[0001] The application relates to a rotor main shaft machining device, in particular to a magnetic steel arc inlaid type high-speed motorized spindle rotor machining device. BACKGROUND

[0002] With the transformation and upgrading of global manufacturing industry, the demand for high-speed and high-precision machining in the fields of aerospace, automobile manufacturing and precision machining is increasing, for example, in the field of aerospace, when machining key components such as aircraft engine blades and turbine discs, high-speed and low-vibration motorized spindles are needed to improve machining efficiency and product quality. In the automobile manufacturing industry, the performance of motorized spindles is also required to be higher when machining engine blocks and crankshafts, and the magnetic steel arc inlaid type high-speed motorized spindle rotor can meet these demands, and its high speed and good stability help to realize precision machining, so it has been widely used.

[0003] In the turning process, the interaction between the tool and the magnetic steel material is complex, and the material properties of the magnetic steel itself make the cutting force prone to fluctuation, when the change frequency of the cutting force is close to the natural frequency of some parts of the equipment, resonance is triggered, and the vibration amplitude is aggravated. When turning the inside of the magnetic steel, it is particularly difficult to observe the vibration, and the existing equipment lacks a direct monitoring means for the vibration of the inside of the magnetic steel during turning, and usually only the surface quality and dimensional accuracy of the machined magnetic steel can be used to indirectly judge whether there is a vibration problem, and the inside vibration state cannot be captured in real time and accurately during turning. SUMMARY

[0004] One of the technical problems solved by the present application is how to prevent vibration when cutting the inside of the magnetic steel, and therefore a magnetic steel arc inlaid type high-speed motorized spindle rotor machining device is proposed.

[0005] To solve the above technical problems, the application provides a magnetic steel arc inlaid type high-speed motorized spindle rotor machining device, which comprises a machine body, a pushing device, a turning device and a clamping device, the end of the clamping device is provided with a plurality of detection balls in active contact with the outer surface of the magnetic steel, a vibration detection mechanism is arranged between the clamping device and the plurality of detection balls, which is used to detect the vibration of the detection balls when the magnetic steel vibrates, a plurality of auxiliary wheels are arranged at the end of the clamping device, and a vibration prevention extrusion mechanism is arranged between the clamping device and the plurality of auxiliary wheels, which is used to clamp the outer surface of the magnetic steel and absorb vibration through the auxiliary wheels.

[0006] In some embodiments, the vibration detection mechanism comprises a mounting rod arranged at the end of the clamping device, the end of the mounting rod is provided with a U-shaped plate, the inner side of the U-shaped plate is provided with a linear displacement sensor, and the end of the linear displacement sensor is provided with a synchronous plate.

[0007] In some embodiments, the inner side of the U-shaped plate is provided with a sleeve rod, the inner wall of the sleeve rod is movably provided with a sliding rod connected with the synchronous plate, the outer side of the sleeve rod is sleeved with an L-shaped plate, and the inner side of the L-shaped plate is provided with a spline sleeve.

[0008] In some embodiments, the inner side of the spline sleeve is movably provided with a spline shaft, the end of the spline shaft is provided with a connecting disc, the outer side of the spline sleeve is sleeved with a spring I connected with the connecting disc, and the end of the connecting disc is provided with an outer convex rod.

[0009] In some embodiments, the end of the outer convex rod is provided with a connecting rod connected with the detection ball, the end of the sliding rod is movably connected with a contact rod on the outer side of the outer convex rod, and the outer side of the sliding rod is sleeved with a spring II connected with the contact rod and the sleeve rod respectively.

[0010] In some embodiments, the anti-vibration extrusion mechanism comprises a mounting plate arranged at the end of the clamping device, the top of the mounting plate is provided with a mounting seat, the inner side of the mounting seat is provided with a rotating rod, the inner side of the rotating rod is movably provided with a special-shaped plate, and the side edge of the special-shaped plate is provided with a side plate movably connected with the inner side of an auxiliary wheel.

[0011] In some embodiments, the outer side of the rotating rod is sleeved with a torsional spring, both ends of the torsional spring are connected with the special-shaped plate and the mounting seat respectively, the side edge of the special-shaped plate is provided with a groove, the inner side of the groove is provided with a fixed plate, and the inner side of the fixed plate is provided with a through groove movably connected with the rotating rod.

[0012] In some embodiments, the side edge of the fixed plate is provided with an inclined block, the top of the mounting plate is provided with a sliding rail, the top of the sliding rail is movably provided with a wedge block movably connected with the inclined block, the bottom of the wedge block is provided with a sliding groove movably connected with the sliding rail, and the side surface of the wedge block is provided with a straight rod.

[0013] In some embodiments, the end of the straight rod is provided with an electromagnet I, the inner side of the clamping device is movably provided with a vacuum cylinder movably sleeved on the outer side of the electromagnet I, the end of the vacuum cylinder is provided with an electromagnetic adjusting device, and one end of the electromagnetic adjusting device penetrates through the vacuum cylinder and is provided with an electromagnet II.

[0014] The present application has at least the following advantages: 1. By setting the detection ball and the outer surface of the magnetic steel contact, combined with the linear displacement sensor, synchronous plate and other components of the vibration detection mechanism, the vibration of the magnetic steel can be converted into a monitorable displacement signal, solving the problem of difficult observation of the inside turning vibration of the magnetic steel, realizing real-time capture of the vibration in processing, and providing data support for precision control; 2. The anti-vibration extrusion mechanism contacts the magnetic steel with the auxiliary wheel, cooperates with the torsional spring, profiled plate and other structures, can stably clamp the magnetic steel, and can also absorb vibration through the auxiliary wheel, so that the anti-vibration lifting device stability is improved, and the influence of resonance on turning precision is reduced; 3. The multi-point position reduction cooperation of the detection ball and the auxiliary wheel can adapt to the arc shape of the magnetic steel, ensure close contact with the outer surface of the magnetic steel, avoid the violent vibration caused by the cutting force fluctuation due to the material characteristics of the magnetic steel, ensure the precision of the magnetic steel turning at high speed, and meet the processing requirements of high-speed electric spindle rotor. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic diagram of the present application; Figure 2 It is the structure schematic diagram of the clamping device, detection ball and auxiliary wheel of the present application; Figure 3 It is the structure schematic diagram of the detection ball and the vibration detection mechanism of the present application; Figure 4 It is the partial structure schematic diagram of the detection ball, sleeve rod, spline sleeve and outer protruding rod of the present application; Figure 5 It is the structure schematic diagram of the auxiliary wheel, mounting plate, profiled plate and straight rod of the present application; Figure 6 It is the structure schematic diagram of the auxiliary wheel, mounting seat, side plate and inclined block of the present application; Figure 7 It is the explosion structure schematic diagram of the wedge block, auxiliary wheel, vacuum cylinder and fixed plate of the present application; Figure 8 It is the explosion structure schematic diagram of the vacuum cylinder, straight rod, electromagnet and electromagnetic adjusting device of the present application.

[0016] In the figure: 1, body; 2, pushing device; 3, turning device; 4, clamping device; 5, detection ball; 6, auxiliary wheel; 7, vibration detection mechanism; 71, U-shaped plate; 72, mounting rod; 73, linear displacement sensor; 74, synchronous plate; 75, sliding rod; 76, sleeve rod; 77, L-shaped plate; 78, connecting rod; 79, spline sleeve; 710, spring one; 711, spline shaft; 712, connecting disc; 713, spring two; 714, outer convex rod; 715, contact rod; 8, anti-vibration extrusion mechanism; 81, mounting plate; 82, special-shaped plate; 83, straight rod; 84, sliding rail; 85, wedge block; 86, mounting seat; 87, side plate; 88, sliding groove; 89, inclined block; 810, vacuum cylinder; 811, fixed plate; 812, through groove; 813, rotating rod; 814, torsional spring; 815, groove; 816, electromagnetic adjusting device; 817, electromagnet one; 818, electromagnet two. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0018] Embodiment one: please refer to Figures 1-8 The present application provides a technical solution: a magnetic steel arc inlaid type high-speed electric spindle rotor machining equipment, comprising a body 1, a pushing device 2, a turning device 3 and a clamping device 4, the end of the clamping device 4 is provided with a plurality of detection balls 5 in active contact with the outer surface of the magnetic steel, a vibration detection mechanism 7 is arranged between the clamping device 4 and the plurality of detection balls 5, which is used to detect the vibration of the detection ball 5 when the magnetic steel vibrates, a plurality of auxiliary wheels 6 are arranged at the end of the clamping device 4, and an anti-vibration extrusion mechanism 8 is arranged between the clamping device 4 and the plurality of auxiliary wheels 6, which is used to clamp the outer surface of the magnetic steel and absorb vibration through the auxiliary wheel 6, the detection ball 5 is designed as a spherical shape that fits the outer surface of the magnetic steel, which can sense the vibration of the magnetic steel, the spherical shape can receive the impact of the magnetic steel vibration without dead angle, compared with plane contact, it can more accurately capture the vibration direction and amplitude change, ensure that the magnetic steel inside turning vibration is detected in time, and provide accurate signals for subsequent anti-vibration measures, the auxiliary wheel 6 is made of rubber material and designed as a circular shape, the circular profile can smoothly fit the outer surface of the magnetic steel and roll. The rubber material has good elasticity and damping characteristics, which can not only buffer the vibration of the magnetic steel, but also provide a certain friction to prevent the magnetic steel from sliding.

[0019] The vibration detection mechanism 7 comprises a mounting rod 72 arranged at the end of the clamping device 4, and the end of the mounting rod 72 is provided with a U-shaped plate 71, the inner side of the U-shaped plate 71 is provided with a linear displacement sensor 73, and the end of the linear displacement sensor 73 is provided with a synchronization plate 74; The shape of the U-shaped plate 71 is designed to accommodate the linear displacement sensor 73 and the related transmission assembly, and the U-shaped opening facilitates the installation and maintenance of the internal components; The linear displacement sensor 73 adopts a straight rod structure, which can directly convert the linear displacement of the synchronization plate 74 into an electrical signal output. This shape is beneficial for precise displacement measurement and is compatible with the overall structure. The output signal directly reflects the vibration condition of the magnet steel.

[0020] The inner side of the U-shaped plate 71 is provided with a sleeve rod 76, the inner wall of the sleeve rod 76 movably arranged with a sliding rod 75 connected with the synchronization plate 74, the outer side of the sleeve rod 76 is sleeved with an L-shaped plate 77, the inner side of the L-shaped plate 77 is provided with a spline sleeve 79, and the spline sleeve 79 and the spline shaft 711 are matched in spline shape, which can ensure torque transmission while allowing relative sliding. The spline structure can effectively prevent relative rotation between the two, ensuring that the spline shaft 711 slides stably in the spline sleeve 79 when the outer protruding rod 714 moves.

[0021] The inner side of the spline sleeve 79 movably arranged with a spline shaft 711, the end of the spline shaft 711 is provided with a connecting disc 712, the outer side of the spline sleeve 79 is sleeved with a spring I 710 connected with the connecting disc 712, the end of the connecting disc 712 is provided with an outer protruding rod 714, the outer protruding rod 714 is designed as a rod with a protruding part, the protruding part can extrude the contact rod 715, and the rod structure is beneficial for stable connection with the connecting disc 712, so that the outer protruding rod 714 can convert the vibration displacement of the detection ball 5 into extrusion action on the contact rod 715 under the driving of the connecting rod 78, triggering the movement of the sliding rod 75, and realizing the transmission of vibration signal.

[0022] The end of the outer protruding rod 714 is provided with a connecting rod 78 connected with the detection ball 5, the end of the sliding rod 75 is provided with a contact rod 715 movably connected with the outer side of the outer protruding rod 714, the outer side of the sliding rod 75 is sleeved with a spring II 713 connected with the contact rod 715 and the sleeve rod 76 respectively, and the sleeve rod 76 is in a hollow tubular shape, sleeved outside the sliding rod 75, which not only guides the linear motion of the sliding rod 75, but also provides installation space for the spring II 713. The tubular structure is closely matched with the sliding rod 75 to limit the movement direction of the sliding rod 75, ensuring its stable linear sliding in vibration transmission.

[0023] Example two: please refer to Figures 5-8The application provides a technical scheme: the anti-vibration extrusion mechanism 8 comprises a mounting plate 81 arranged at the end of the clamping device 4, the top of the mounting plate 81 is provided with a mounting seat 86, the inner side of the mounting seat 86 is provided with a rotating rod 813, the inner side of the rotating rod 813 is movably provided with a special-shaped plate 82, the side of the special-shaped plate 82 is provided with a side plate 87 movably connected with the inner side of the auxiliary wheel 6, the special-shaped plate 82 adopts an asymmetric special-shaped structure, one side is connected with the rotating rod 813, and the other side is connected with the auxiliary wheel 6 through the side plate 87, and the shape is designed to adapt to the outer arc surface of the magnetic steel.

[0024] The outer side of the rotating rod 813 is sleeved with a torsion spring 814, the two ends of the torsion spring 814 are connected with the special-shaped plate 82 and the mounting seat 86 respectively, the side of the special-shaped plate 82 is provided with a groove 815, the inner side of the groove 815 is provided with a fixing plate 811, the inner side of the fixing plate 811 is provided with a through groove 812 movably connected with the rotating rod 813, and the torsion spring 814 is sleeved outside the rotating rod 813. The special-shaped plate 82 can produce elastic deformation and store energy when rotating, the shape can provide a continuous and uniform restoring force, and the auxiliary wheel 6 can be ensured to be closely attached to the outer surface of the magnetic steel at all times.

[0025] The side of the fixing plate 811 is provided with an inclined block 89, the top of the mounting plate 81 is provided with a sliding rail 84, the top of the sliding rail 84 is movably provided with a wedge block 85 movably connected with the inclined block 89, the bottom of the wedge block 85 is provided with a sliding groove 88 movably connected with the sliding rail 84, the side of the wedge block 85 is provided with a straight rod 83, the inclined block 89 is wedge-shaped, the inclined surface is matched with the inclined surface of the wedge block 85, the wedge-shaped structure can convert the horizontal displacement of the wedge block 85 into the rotating action of the special-shaped plate 82, the inclined surface contact can reduce friction, the force transmission is smoother, compared with straight surface contact, the fine adjustment is easier to realize, the sliding rail 84 is designed in a strip shape and is fixed at the top of the mounting plate 81, the shape provides guidance for the movement of the wedge block 85, and the strip-shaped structure can limit the wedge block 85 to move only along the length direction of the sliding rail 84, so that the wedge block 85 is prevented from deviating to cause the invalidation of the inclined surface matching.

[0026] The end of the straight rod 83 is provided with an electromagnet one 817, the inner side of the clamping device 4 is provided with a vacuum cylinder 810 movably sleeved outside the electromagnet one 817, the end of the vacuum cylinder 810 is provided with an electromagnetic adjusting device 816, and one end of the electromagnetic adjusting device 816 penetrates through the vacuum cylinder 810 and is provided with an electromagnet two 818; The vacuum cylinder 810 is in a hollow tubular shape and is sleeved outside the electromagnet one 817, the tubular structure can provide a closed and stable movement space for the electromagnet one 817, so that the movement of the electromagnet one 817 is prevented from being disturbed by external dust and impurities, the electromagnet one 817 and the electromagnet two 818 are both in a columnar structure, the columnar design is convenient for installation in the vacuum cylinder 810 and can generate a uniform magnetic field, the columnar shape can make the magnetic fields of the two interact more stably, the repulsive force can be accurately controlled by adjusting the current size, and then the pushing force of the straight rod 83 is adjusted.

[0027] Working principle: when using the device, first put the magnet steel into the end of the clamping device 4, and fix it, then move the pushing device 2 to the turning device 3 for cutting, when the inside of the magnet steel is cut and vibrates, the outside of the magnet steel will hit the detection ball 5, so that the detection ball 5 moves, the detection ball 5 will always adhere to the outer surface of the magnet steel under the action of spring one 710, at this time the detection ball 5 will drive the connecting rod 78 to move, the connecting rod 78 will drive the outer protruding rod 714 to move, the outer protruding rod 714 will drive the connecting disc 712 and the spline shaft 711 to move when moving, and will extrude spring one 710, so that the spline shaft 711 slides into the inside of the spline sleeve 79, when the outer protruding rod 714 reciprocating moves, it will extrude the contact rod 715, because the contact rod 715 is always on the outer surface of the outer protruding rod 714 under the action of spring two 713, and then after the extrusion of the protruding part of the outer protruding rod 714, it will drive the sliding rod 75 to slide in the inside of the sleeve rod 76, the sleeve rod 76 will drive the synchronous plate 74 to move after moving, the synchronous plate 74 will drive the detection end of the linear displacement sensor 73 to move, the data given by the linear displacement sensor 73 can judge the vibration, and also can get the frequency and intensity of the vibration; The data obtained is fed back to the electromagnetic adjusting device 816, so that the electromagnetic adjusting device 816 controls the current size of the electromagnet two 818, and then repels the electromagnet one 817, so that the displacement distance of the electromagnet one 817 in the inside of the vacuum cylinder 810 changes, at this time the electromagnet one 817 will drive the straight rod 83 to move, the straight rod 83 will drive the wedge block 85 to move on the outer surface of the mounting plate 81, the sliding groove 88 opened at the bottom of the wedge block 85 will slide on the outer surface of the slide rail 84, the inclined surface of the wedge block 85 will extrude the inclined block 89, so that the inclined block 89 drives the fixed plate 811 to move, the fixed plate 811 will drive the special-shaped plate 82 to rotate around the rotating rod 813, and will drive the torsional spring 814 to twist, so that the torsional spring 814 is in the energy storage state, at this time the special-shaped plate 82 will drive the auxiliary wheel 6 to move through the side plate 87, so that the auxiliary wheel 6 extrudes the outer surface of the magnet steel, because the auxiliary wheel 6 is made of rubber, it can not only ensure that the vibration effect of the magnet steel becomes smaller, but also can absorb the vibration to prevent the clamping device 4 from vibrating and causing the magnet steel to separate.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A high-speed electric spindle rotor machining equipment with embedded magnetic steel arc, comprising a machine body (1), a pushing device (2), a turning device (3), and a clamping device (4), characterized in that: The clamping device (4) is provided with a plurality of detection balls (5) that are in active contact with the outer surface of the magnet. A vibration detection mechanism (7) is provided between the clamping device (4) and the plurality of detection balls (5) to detect vibrations of the magnet by means of the vibration of the detection balls (5). The clamping device (4) is provided with a plurality of auxiliary wheels (6). A vibration-damping squeezing mechanism (8) is provided between the clamping device (4) and the plurality of auxiliary wheels (6) to clamp the outer surface of the magnet and absorb vibrations through the auxiliary wheels (6).

2. The high-speed electric spindle rotor machining equipment with embedded magnetic steel arc as described in claim 1, characterized in that: The vibration detection mechanism (7) includes a mounting rod (72) disposed at the end of the clamping device (4), a U-shaped plate (71) disposed at the end of the mounting rod (72), a linear displacement sensor (73) disposed on the inner side of the U-shaped plate (71), and a synchronization plate (74) disposed at the end of the linear displacement sensor (73).

3. The high-speed electric spindle rotor machining equipment with embedded magnetic steel arc as described in claim 2, characterized in that: The inner side of the U-shaped plate (71) is provided with a sleeve rod (76), and the inner wall of the sleeve rod (76) is movably provided with a slide rod (75) connected to the synchronous plate (74). The outer side of the sleeve rod (76) is provided with an L-shaped plate (77), and the inner side of the L-shaped plate (77) is provided with a spline sleeve (79).

4. The high-speed electric spindle rotor machining equipment with embedded magnetic steel arc as described in claim 3, characterized in that: A spline shaft (711) is movably provided on the inner side of the spline sleeve (79), and a connecting plate (712) is provided at the end of the spline shaft (711). A spring (710) connected to the connecting plate (712) is sleeved on the outer side of the spline sleeve (79), and an outward protruding rod (714) is provided at the end of the connecting plate (712).

5. The high-speed electric spindle rotor machining equipment with embedded magnetic steel arc as described in claim 4, characterized in that: The end of the protruding rod (714) is provided with a connecting rod (78) connected to the detection ball (5), the end of the slide rod (75) is provided with a contact rod (715) movably connected to the outside of the protruding rod (714), and the outside of the slide rod (75) is provided with a spring (713) connected to the contact rod (715) and the sleeve rod (76) respectively.

6. The high-speed electric spindle rotor machining equipment with embedded magnetic steel arc as described in claim 1, characterized in that: The vibration-damping extrusion mechanism (8) includes a mounting plate (81) disposed at the end of the clamping device (4). A mounting seat (86) is disposed on the top of the mounting plate (81). A rotating rod (813) is disposed on the inner side of the mounting seat (86). A special-shaped plate (82) is movably disposed on the inner side of the rotating rod (813). A side plate (87) is disposed on the side of the special-shaped plate (82) and movably connected to the inner side of the auxiliary wheel (6).

7. The high-speed electric spindle rotor machining equipment with embedded magnetic steel arc as described in claim 6, characterized in that: A torsion spring (814) is sleeved on the outside of the rotating rod (813). The two ends of the torsion spring (814) are connected to the special plate (82) and the mounting base (86) respectively. A groove (815) is provided on the side of the special plate (82). A fixing plate (811) is provided on the inner side of the groove (815). A through groove (812) is provided on the inner side of the fixing plate (811) and is movably connected to the rotating rod (813).

8. The high-speed electric spindle rotor machining equipment with embedded magnetic steel arc as described in claim 7, characterized in that: The fixed plate (811) has a wedge (89) on its side, the mounting plate (81) has a slide rail (84) on its top, the slide rail (84) has a wedge (85) on its top that is movably connected to the wedge (89), the bottom of the wedge (85) has a groove (88) that is movably connected to the slide rail (84), and the side of the wedge (85) has a straight rod (83).

9. The high-speed electric spindle rotor machining equipment with embedded magnetic steel arc as described in claim 8, characterized in that: The end of the straight rod (83) is provided with an electromagnet one (817), and the inner side of the clamping device (4) is provided with a vacuum cylinder (810) movably sleeved on the outside of the electromagnet one (817). The end of the vacuum cylinder (810) is provided with an electromagnetic adjustment device (816), and one end of the electromagnetic adjustment device (816) passes through the vacuum cylinder (810) and is provided with an electromagnet two (818).

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