Magnetic steel arc inlay type high-speed electric spindle rotor processing equipment

Abstract

The application relates to the technical field of rotor main shaft processing equipment, in particular to a magnetic steel arc inlaid type high-speed motorized spindle rotor processing equipment, 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 which are 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, the end of the clamping device is provided with a plurality of auxiliary wheels, and an anti-vibration extrusion mechanism is arranged between the clamping device and the plurality of auxiliary wheels. The magnetic steel arc inlaid type high-speed motorized spindle rotor processing equipment is in contact with the outer surface of the magnetic steel through the arranged detection balls, and the linear displacement sensor, a synchronous plate and other components of the vibration detection mechanism are combined, so that the vibration of the magnetic steel can be converted into a monitorable displacement signal, the problem that the turning vibration of the inner side of the magnetic steel is difficult to observe is solved, the real-time capture of the vibration in the processing is realized, 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.

[0003] 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.

[0004] 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 frequency of cutting force changes approaches the natural frequency of some parts of the equipment, resonance is triggered, and the vibration amplitude is aggravated.

[0005] 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 vibration problem, and the inside vibration state cannot be captured in real time and accurately during turning, therefore, the application provides a magnetic steel arc inlaid type high-speed motorized spindle rotor machining device. SUMMARY

[0006] One of the technical problems to be solved by the application is how to prevent vibration when cutting the inside of the magnetic steel, therefore, a magnetic steel arc inlaid type high-speed motorized spindle rotor machining device is provided.

[0007] 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.

[0008] In some embodiments, the vibration detection mechanism includes a mounting rod disposed at the end of the clamping device, a U-shaped plate disposed at the end of the mounting rod, a linear displacement sensor disposed on the inner side of the U-shaped plate, and a synchronization plate disposed at the end of the linear displacement sensor.

[0009] In some embodiments, a sleeve rod is provided on the inner side of the U-shaped plate, a slide rod connected to the synchronization plate is movably provided on the inner wall of the sleeve rod, an L-shaped plate is sleeved on the outer side of the sleeve rod, and a spline sleeve is provided on the inner side of the L-shaped plate.

[0010] In some embodiments, a spline shaft is movably disposed on the inner side of the spline sleeve, a connecting plate is disposed at the end of the spline shaft, a spring connected to the connecting plate is sleeved on the outer side of the spline sleeve, and an outward protruding rod is disposed at the end of the connecting plate.

[0011] In some embodiments, the end of the protruding rod is provided with a connecting rod connected to the detection ball, the end of the sliding rod is provided with a contact rod movably connected to the outside of the protruding rod, and the outside of the sliding rod is sleeved with two springs respectively connected to the contact rod and the sleeve rod.

[0012] In some embodiments, the anti-vibration compression mechanism includes a mounting plate disposed at the end of the clamping device, a mounting seat disposed on the top of the mounting plate, a rotating rod disposed on the inner side of the mounting seat, a shaped plate movably disposed on the inner side of the rotating rod, and a side plate movably connected to the inner side of the shaped plate.

[0013] In some embodiments, a torsion spring is sleeved on the outer side of the rotating rod, and the two ends of the torsion spring are respectively connected to the irregular plate and the mounting base. A groove is provided on the side of the irregular plate, and a fixing plate is provided on the inner side of the groove. A through groove is provided on the inner side of the fixing plate and is movably connected to the rotating rod.

[0014] In some embodiments, the side of the fixing plate is provided with an inclined block, the top of the mounting plate is provided with a slide rail, the top of the slide rail is movably provided with a wedge block that is movably connected to the inclined block, the bottom of the wedge block is provided with a slide groove that is movably connected to the slide rail, and the side of the wedge block is provided with a straight rod.

[0015] In some embodiments, an electromagnet is provided at the end of the straight rod, a vacuum cylinder is provided inside the clamping device and movably sleeved outside the electromagnet, an electromagnetic adjustment device is provided at the end of the vacuum cylinder, and an electromagnet is provided at one end of the electromagnetic adjustment device through the vacuum cylinder.

[0016] This invention has at least the following beneficial effects:

[0017] 1. By setting the detection ball to contact the outer surface of the magnet, combined with the linear displacement sensor, synchronization plate and other components of the vibration detection mechanism, the vibration of the magnet can be converted into a monitorable displacement signal, which solves the problem of difficult observation of the turning vibration on the inner side of the magnet, realizes the real-time capture of vibration during processing, and provides data support for precision control;

[0018] 2. The anti-vibration pressing mechanism uses an auxiliary wheel to contact the magnet, and in conjunction with torsion springs, special-shaped plates and other structures, it can not only stably clamp the magnet, but also absorb vibration through the auxiliary wheel, thereby improving the stability of the equipment and reducing the impact of resonance on the turning accuracy.

[0019] 3. The multi-point reduced fit between the detection ball and the auxiliary wheel can adapt to the arc shape of the magnet, ensuring a tight fit with the outer surface of the magnet. This avoids severe vibration caused by cutting force fluctuations due to the characteristics of the magnet material, ensuring the accuracy of magnet turning at high speeds and meeting the machining requirements of high-speed electric spindle rotors. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the clamping device, the detection ball, and the auxiliary wheel of the present invention;

[0022] Figure 3 This is a schematic diagram of the detection ball and vibration detection mechanism of the present invention;

[0023] Figure 4 This is a partial structural diagram of the detection ball, sleeve, spline sleeve, and external protrusion rod of the present invention.

[0024] Figure 5 This is a schematic diagram of the structure of the auxiliary wheel, mounting plate, irregular plate, and straight rod of the present invention;

[0025] Figure 6 This is a schematic diagram of the auxiliary wheel, mounting base, side plate, and inclined block of the present invention;

[0026] Figure 7 This is an exploded structural diagram of the wedge, auxiliary wheel, vacuum cylinder, and fixing plate of the present invention;

[0027] Figure 8 This is an exploded structural diagram of the vacuum cylinder, straight rod, electromagnet, and electromagnetic adjustment device of the present invention.

[0028] In the diagram: 1. Machine 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. Synchronizing plate; 75. Slide rod; 76. Sleeve rod; 77. L-shaped plate; 78. Connecting rod; 79. Spline sleeve; 710. Spring one; 711. Spline shaft; 712. Connecting plate; 713. Spring two; 714. Outer... 715. Protruding rod; 8. Contact rod; 9. Vibration-resistant extrusion mechanism; 10. Mounting plate; 11. Irregular plate; 12. Straight rod; 13. Slide rail; 14. Wedge block; 15. Mounting base; 16. Side plate; 17. Slide groove; 18. Inclined block; 19. Vacuum cylinder; 10. Fixing plate; 11. Through groove; 12. Rotating rod; 13. Torsion spring; 14. Groove; 15. Electromagnet; 16. Electromagnetic adjustment device; 17. Electromagnet one; 18. Electromagnet two. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1-8 This invention provides a technical solution: a high-speed electric spindle rotor machining equipment with an embedded arc of magnet, 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 multiple 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 multiple detection balls 5, used to detect vibrations of the magnet by utilizing the vibration of the detection balls 5. The end of the clamping device 4 is provided with multiple auxiliary wheels 6, and an anti-vibration squeezing mechanism 8 is provided between the clamping device 4 and the multiple auxiliary wheels 6, used to clamp the outer surface of the magnet and absorb vibrations through the auxiliary wheels 6. The detection balls 5 are designed to be spherical and fit snugly against the outer surface of the magnet, enabling them to sense magnet vibrations. The spherical shape allows for the reception of magnet vibration impacts without blind spots. Compared to planar contact, it can more accurately capture changes in the direction and amplitude of vibration, ensuring that the turning vibration on the inner side of the magnet is detected in a timely manner, providing accurate signals for subsequent anti-vibration measures. The auxiliary wheels 6 are made of rubber and designed to be circular, with a circular outline that allows for smooth rolling against the outer surface of the magnet. The rubber material has good elasticity and damping properties, which can both buffer the vibration of the magnet and provide a certain amount of friction to prevent the magnet from sliding.

[0031] 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.

[0032] The U-shaped plate 71 is designed to accommodate the linear displacement sensor 73 and related transmission components. The U-shaped opening facilitates the installation and maintenance of internal components.

[0033] The linear displacement sensor 73 adopts a straight rod-shaped structure, which can directly convert the linear displacement of the synchronization plate 74 into an electrical signal output. This shape is conducive to accurate displacement measurement and is compatible with the overall structure. Its output signal directly reflects the vibration of the magnet.

[0034] A sleeve 76 is provided on the inner side of the U-shaped plate 71. A slide rod 75, which is movably connected to the synchronous plate 74, is provided on the inner wall of the sleeve 76. An L-shaped plate 77 is sleeved on the outer side of the sleeve 76. A spline sleeve 79 is provided on the inner side of the L-shaped plate 77. The spline sleeve 79 and the spline shaft 711 are designed with a spline shape to 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 protruding rod 714 moves.

[0035] A spline shaft 711 is movably disposed on the inner side of the spline sleeve 79. A connecting plate 712 is disposed 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. An external protruding rod 714 is disposed at the end of the connecting plate 712. The external protruding rod 714 is designed as a rod with a protruding part. The protruding part can press the contact rod 715. The rod-shaped structure facilitates a stable connection with the connecting plate 712. Under the drive of the connecting rod 78, the external protruding rod 714 can convert the vibration displacement of the detection ball 5 into a pressing action on the contact rod 715, triggering the subsequent movement of the slide rod 75, thereby realizing the transmission of vibration signals.

[0036] The end of the protruding rod 714 is provided with a connecting rod 78 that connects to the detection ball 5. The end of the sliding rod 75 is provided with a contact rod 715 that is movably connected to the outside of the protruding rod 714. A second spring 713 is sleeved on the outside of the sliding rod 75, which is connected to both the contact rod 715 and the sleeve rod 76. The sleeve rod 76 is a hollow tube that is sleeved on the outside of the sliding rod 75, guiding the linear movement of the sliding rod 75 and providing installation space for the second spring 713. The tubular structure fits tightly with the sliding rod 75, restricting the direction of movement of the sliding rod 75 and ensuring its stable linear sliding during vibration transmission.

[0037] Example 2: Please refer to Figures 5-8The present invention provides a technical solution: the anti-vibration extrusion mechanism 8 includes a mounting plate 81 disposed at the end of the clamping device 4, a mounting seat 86 disposed on the top of the mounting plate 81, a rotating rod 813 disposed on the inner side of the mounting seat 86, a special-shaped plate 82 movably disposed on the inner side of the rotating rod 813, and a side plate 87 movably connected to the inner side of the auxiliary wheel 6 disposed on the side of the special-shaped plate 82. The special-shaped plate 82 adopts an asymmetrical special-shaped structure, with one side connected to the rotating rod 813 and the other side connected to the auxiliary wheel 6 through the side plate 87. Its shape design is adapted to fit the outer arc surface of the magnet.

[0038] A torsion spring 814 is sleeved on the outer side of the rotating rod 813. The two ends of the torsion spring 814 are connected to the irregular plate 82 and the mounting base 86, respectively. A groove 815 is opened on the side of the irregular plate 82. A fixing plate 811 is provided on the inner side of the groove 815. A through groove 812 is opened on the inner side of the fixing plate 811 and is movably connected to the rotating rod 813. The torsion spring 814 is sleeved on the outer side of the rotating rod 813. It can generate elastic deformation and store energy when the irregular plate 82 rotates. This shape can provide a continuous and uniform restoring force to ensure that the auxiliary wheel 6 is always in close contact with the outer surface of the magnet.

[0039] The fixed plate 811 has a wedge 89 on its side and a slide rail 84 on its top. The slide rail 84 has a wedge 85 that is movably connected to the wedge 89 on its top. The bottom of the wedge 85 has a groove 88 that is movably connected to the slide rail 84. The side of the wedge 85 has a straight rod 83. The wedge 89 is wedge-shaped and its wedge surface matches the wedge surface of the wedge 85. The advantage of the wedge structure is that it can convert the horizontal displacement of the wedge 85 into the rotation of the irregular plate 82. The wedge contact can reduce friction and make the force transmission smoother. Compared with the straight contact, it is easier to make fine adjustments. The slide rail 84 is designed as a long strip and is fixed to the top of the mounting plate 81. Its shape provides guidance for the movement of the wedge 85. The long strip structure can restrict the wedge 85 to move only along the length of the slide rail 84, avoiding the wedge 85 from deviating and causing the wedge fit to fail.

[0040] An electromagnet 817 is provided at the end of the straight rod 83. A vacuum cylinder 810 is movably sleeved on the outside of the electromagnet 817 on the inner side of the clamping device 4. An electromagnetic adjustment device 816 is provided at the end of the vacuum cylinder 810. An electromagnet 818 is provided at one end of the electromagnetic adjustment device 816 through the vacuum cylinder 810.

[0041] The vacuum cylinder 810 is a hollow tube and is fitted around the outside of electromagnet 1 817. The tubular structure provides a closed and stable moving space for electromagnet 1 817, preventing external dust and impurities from interfering with its movement. Both electromagnet 1 817 and electromagnet 2 818 are columnar structures. The columnar design facilitates installation inside the vacuum cylinder 810 and generates a uniform magnetic field. The columnar shape makes the interaction between the magnetic fields of the two more stable. By adjusting the current, the repulsive force can be precisely controlled, thereby adjusting the thrust of the straight rod 83.

[0042] Working principle: When using this device, the magnet is first placed at the end of the clamping device 4 for clamping and fixing. Then, the pushing device 2 is moved to the turning device 3 for cutting. When the inner side of the magnet is cut and vibration occurs, the outer surface of the magnet will impact the detection ball 5, causing the detection ball 5 to move. Under the action of the spring 710, the detection ball 5 will remain in contact with the outer surface of the magnet. At this time, the detection ball 5 will drive the connecting rod 78 to move, which in turn drives the outer protrusion rod 714 to move. When the outer protrusion rod 714 moves, it will drive the connecting plate 712 and the spline shaft 711 to move, and will also compress the spring 710. 0, causing the spline shaft 711 to slide inside the spline sleeve 79. When the outer protruding rod 714 moves back and forth, it will squeeze the contact rod 715. Since the contact rod 715 is always on the outer surface of the outer protruding rod 714 under the action of the spring 713, the protruding part of the outer protruding rod 714 will squeeze and drive the slide rod 75 to slide inside the sleeve rod 76. After the sleeve rod 76 moves, it will drive the synchronous plate 74 to move. The synchronous plate 74 will drive the detection end of the linear displacement sensor 73 to move. The vibration can be judged by the data given by the linear displacement sensor 73, and the frequency and intensity of the vibration can also be obtained.

[0043] The obtained data is fed back to the electromagnetic adjustment device 816, which controls the current of electromagnet 2 818, thereby repelling electromagnet 1 817. This causes a change in the displacement distance of electromagnet 1 817 inside the vacuum cylinder 810. At this time, electromagnet 1 817 drives the straight rod 83 to move, and the straight rod 83 drives the wedge 85 to move on the outer surface of the mounting plate 81. The groove 88 at the bottom of the wedge 85 slides on the outer surface of the slide rail 84, and the inclined surface of the wedge 85 presses against the inclined block 89. This causes the inclined block 89 to move the fixed plate 811, which in turn causes the irregular plate 82 to rotate around the rotating rod 813 and to the torsion spring 814 to twist, putting the torsion spring 814 into an energy storage state. At this time, the irregular plate 82 will drive the auxiliary wheel 6 to move through the side plate 87, causing the auxiliary wheel 6 to press against the outer surface of the magnet. Since the auxiliary wheel 6 is made of rubber, it can not only ensure that the vibration effect of the magnet is reduced, but also absorb vibration and prevent the clamping device 4 from vibrating, which could cause the magnet to detach.

[0044] 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.

[0045] 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 kind of magnetic steel arc embedded high-speed motorized spindle rotor processing equipment, including machine body (1), pushing device (2), turning device (3) and clamping device (4), it is characterized by: 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 detects 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 a vibration prevention extrusion mechanism (8) is arranged between the clamping device (4) and the plurality of auxiliary wheels (6) to clamp the outer surface of the magnetic steel and absorb vibration through the auxiliary wheel (6); The vibration prevention extrusion mechanism (8) comprises a mounting plate (81) arranged at the end of the clamping device (4), a mounting seat (86) is arranged at the top of the mounting plate (81), a rotating rod (813) is arranged at the inner side of the mounting seat (86), a special-shaped plate (82) is movably arranged at the inner side of the rotating rod (813), and a side plate (87) is movably arranged at the side of the special-shaped plate (82) and connected with the inner side of the auxiliary wheel (6); The outer side of the rotating rod (813) is sleeved with a torsional spring (814), the two ends of the torsional spring (814) are connected with the special-shaped plate (82) and the mounting seat (86) respectively, a recess (815) is formed in the side of the special-shaped plate (82), a fixed plate (811) is arranged at the inner side of the recess (815), and a through groove (812) movably connected with the rotating rod (813) is formed in the inner side of the fixed plate (811); The side of the fixed 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), and the side of the wedge block (85) is provided with a straight rod (83).

2. The magnetic steel arc inlay type high-speed electric spindle rotor machining device according to claim 1, characterized in that: The vibration detection mechanism (7) comprises a mounting rod (72) arranged at the end of the clamping device (4), a U-shaped plate (71) is arranged at the end of the mounting rod (72), a linear displacement sensor (73) is arranged at the inner side of the U-shaped plate (71), and a synchronous plate (74) is arranged at the end of the linear displacement sensor (73).

3. The magnetic steel arc inlay type high-speed electric spindle rotor machining device according to claim 2, characterized in that: The inner side of the U-shaped plate (71) is provided with a sleeve rod (76), the inner wall of the sleeve rod (76) is movably provided with a sliding rod (75) connected with the synchronous plate (74), the outer side of the sleeve rod (76) is sleeved 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 magnetic steel arc inlay type high-speed electric spindle rotor machining device according to claim 3, characterized in that: The inner side of the spline sleeve (79) is movably provided 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), and the end of the connecting disc (712) is provided with an outer convex rod (714).

5. The magnetic steel arc inlay type high-speed electric spindle rotor machining device according to claim 4, characterized in that: The end of the outer convex 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 convex rod (714), the outer side of the sliding rod (75) is sleeved with spring two (713) connected with the contact rod (715) and the sleeve rod (76) respectively.

6. The magnetic steel arc inlay type high-speed electric spindle rotor machining device according to claim 1, characterized in that: 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 on the outer side of the electromagnet one (817), the end of the vacuum cylinder (810) is provided with an electromagnetic adjusting device (816), one end of the electromagnetic adjusting device (816) is provided with an electromagnet two (818) penetrating through the vacuum cylinder (810).

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