Circular truncated cone grinding machine tool, middle convex grinding method and middle concave grinding method

Abstract

The invention provides a circular truncated cone grinding machine tool, a middle convex grinding method and a middle concave grinding method, and belongs to the technical field of grinding machine tools. The circular truncated cone grinding machine tool comprises a rack, a horizontal movement mechanism, a vertical movement mechanism, a grinding wheel mechanism, a carrying device and a control device. The carrying device is provided with an angle adjusting frame and an adjusting component, the angle adjusting frame is rotationally connected with the rack through a rotating shaft, and the other end of the angle adjusting frame can swing in a pitching mode and is fixedly connected with the rack through the adjusting component. By means of the circular truncated cone grinding machine tool, a middle convex grinding method and a middle concave grinding method can be achieved by adjusting the angle of the angle adjusting frame. By adjusting the inclination angle of the angle adjusting frame, grinding machining of a middle-convex structure, a middle-concave structure, a horizontal plane and a stepped plane of a workpiece can be achieved on the premise that the movement mode of the grinding wheel body does not need to be changed, the fluctuating shape of the surface to be machined can be controlled through mutual cooperation of the horizontal movement mechanism and the vertical movement mechanism, the adjusting mode is simple, and machining efficiency is high. And the machining precision is high.

Description

Technical Field

[0001] The present application belongs to the technical field of grinding machine tools, and more specifically, to a truncated table grinding machine tool, a convex grinding method, and a concave grinding method. Background Art

[0002] Grinding is widely used in the machinery manufacturing industry. It can be used to cut the surface of the workpiece using high-speed rotating grinding wheels and other grinding tools. Compared with the grinding of flat surfaces, the grinding of convex and concave parts of non-planar structures is relatively complicated.

[0003] Among them, the Chinese invention patent with publication number CN111823102B discloses a heat-insulating composite wear-resistant brick grinding processing device, which discloses the idea of ​​processing convex parts and concave parts. In this scheme, the grinding mechanism includes a convex plate and a concave plate. The convex plate and the concave plate are each provided with a grinding brush on the inner side, and a universal ball sleeve is fixed at both ends and the center of the outer side. The universal ball sleeve has a universal ball block for rotation restriction, and three adjusting screws are screwed on the mounting plate, and the inner end of the adjusting screw is connected to the universal ball block as a whole.

[0004] When in use, the grinding of the convex structure and the concave structure is achieved through the grinding brushes on the convex plate and the concave plate. The curvature of the processed surface is adjusted by adjusting the screw. However, the disadvantages of this solution are obvious and cannot be applied to a wider range of scenarios. Specifically, since the convex plate and the concave plate change the curvature of the convex structure and the concave structure through their own deformation, grinding by a grinding wheel cannot be achieved, and grinding by a grinding brush is only possible, resulting in limited grinding application scenarios. Moreover, the deformation range and shape of the convex plate and the concave plate are greatly limited, and the curvature can only be adjusted by adjusting the screw. It is impossible to process convex parts and concave parts with complex surfaces, and it is impossible to achieve step surface grinding. Summary of the invention

[0005] In order to solve the deficiencies of the prior art, the present invention provides a circular table grinding machine, a convex grinding method and a concave grinding method, which can grind workpieces with convex and concave structures through a grinding wheel without affecting the grinding of planar parts and stepped surfaces.

[0006] To achieve the above-mentioned purpose, the technical solution of the present application provides a circular table grinding machine tool, including a frame, a horizontal motion mechanism, a vertical motion mechanism, a grinding wheel mechanism, a loading device and a control device; The frame is provided with a horizontal slide rail, and the horizontal motion mechanism is slidably arranged on the horizontal slide rail; the horizontal motion mechanism has a vertical slide rail, and the vertical motion mechanism is slidably arranged on the vertical slide rail; the grinding wheel mechanism includes a grinding wheel driving motor and a grinding wheel body connected to the output end of the grinding wheel driving motor, and the grinding wheel driving motor is connected to the vertical motion mechanism; the loading device includes a turntable motor and a rotating table, the turntable motor is installed on the frame, the rotating table is connected to the turntable motor by transmission, and the rotating table is located at the bottom of the grinding wheel body; the horizontal motion mechanism, the vertical motion mechanism, the grinding wheel driving motor and the turntable motor are all controlled by the control device; The loading device also includes an angle adjustment frame and an adjustment component, and the rotating platform is installed on the angle adjustment frame; one end of the angle adjustment frame has a rotating shaft, and the angle adjustment frame is rotatably connected to the frame through the rotating shaft, and the other end of the angle adjustment frame can swing in pitch and is fixedly connected to the frame through the adjustment component.

[0007] The control device is a common PLC controller. The angle adjustment frame can adjust the inclination angle of the rotating table to adjust the inclination angle of the workpiece surface to be processed. When the surface to be processed is parallel to the horizontal plane, the grinding of the plane or the grinding of the stepped structure can be realized. When the surface to be processed is tilted toward the grinding wheel, the processing of the concave structure can be realized. When the surface to be processed is tilted away from the grinding wheel, the processing of the convex structure can be realized. And through the cooperation of the horizontal motion mechanism and the vertical motion mechanism, the undulating shape of the surface to be processed can be controlled. Compared with the prior art, the grinding wheel can be used to realize the processing of convex structures, concave structures, plane structures and step structures, and the adjustment method is simple, and the processing accuracy is easy to control.

[0008] Optionally, the adjusting component includes an adjusting bolt and a locking bolt; the adjusting bolt is screwed through the angle adjustment frame from the top and abuts against the frame; the frame is provided with connecting parts clamped on both sides of the angle adjustment frame, and the two connecting parts are both provided with arc-shaped connecting holes with the axis of the rotating shaft as the center of the circle, and the locking bolt passes through the arc-shaped connecting hole from the outside and is screwed and connected with the angle adjustment frame.

[0009] By screwing the adjusting bolt and controlling the distance that the adjusting bolt extends out of the angle adjustment frame, the angle of the angle adjustment frame can be controlled. When the angle adjustment is completed, the position of the angle adjustment frame can be locked and fixed by the locking bolt. The result is simple and the adjustment is convenient.

[0010] Optionally, the loading device also includes a poly-V belt, a first poly-V belt pulley and a second poly-V belt pulley; a rotating shaft is provided at the bottom of the rotating table, the first poly-V belt pulley is fixedly sleeved on the outside of the rotating shaft, the second poly-V belt pulley is fixedly installed at the output end of the turntable motor, and the poly-V belt closed loop is arranged around the outside of the first poly-V belt pulley and the second poly-V belt pulley.

[0011] Since the multi-V belt has a certain torsional deformation characteristic, within a certain deflection range of the angle adjustment frame, it does not affect the transmission connection between the turntable motor and the turntable, thereby ensuring the stable rotation of the turntable.

[0012] Optionally, it also includes a hydrostatic turntable hydraulic station, and the loading device also includes an oil inlet sleeve, a fixed sleeve, a connecting sleeve, a hydrostatic bearing, a ball bearing, an oil inlet pipe, an oil outlet pipe and an electric slip ring; the angle adjustment frame is provided with a mounting hole, and the top of the turntable is a magnetic suction table; the rotating shaft, the hydrostatic bearing and the oil inlet sleeve are nested in sequence from the inside to the outside, and the oil inlet sleeve is fixedly installed in the mounting hole; the connecting sleeve is fixedly sleeved at the bottom end of the rotating shaft, the fixed sleeve is sleeved at intervals on the outside of the rotating shaft and the connecting sleeve, and the fixed sleeve is bolted to the bottom end of the oil inlet sleeve; the first multi-V belt pulley is rotatably sleeved on the outside of the fixed sleeve through a ball bearing, The bottom end of the connecting sleeve is provided with a connecting plate extending to the bottom end of the first multi-V belt pulley, and the bottom end of the first multi-V belt pulley is bolted to the connecting plate; an oil inlet channel is provided inside the oil inlet sleeve, and the hydrostatic bearing, the oil inlet sleeve, the fixed sleeve and the rotating shaft form an oil chamber, and the oil inlet channel is connected to the hydrostatic bearing; the outlet of the hydrostatic turntable hydraulic station is connected to the oil inlet channel through an oil inlet pipe, and the inlet of the hydrostatic turntable hydraulic station is connected to the oil chamber through an oil outlet pipe; the electric slip ring includes a stator and a rotor located inside the stator, the rotor is fixedly connected to the bottom end of the rotating shaft, the stator is fixedly connected to the frame, and the stator is connected to the magnetic suction table through a wire.

[0013] The bottom end of the rotating table is set in the oil inlet sleeve through the hydrostatic bearing rotation sleeve. The hydrostatic rotating table hydraulic station lubricates the hydrostatic bearing through the oil inlet pipe and the oil inlet channel box to ensure the smooth rotation of the rotating table. The first multi-V belt pulley is fixed to the rotating shaft through the connecting sleeve to achieve synchronous rotation of the rotating shaft and the first multi-V belt pulley. The fixed sleeve is set on the outside of the rotating shaft and the connecting sleeve at intervals to avoid sliding friction between the fixed sleeve and the rotating shaft and the connecting sleeve. The first multi-V belt pulley achieves relative rotation with the fixed sleeve through a ball bearing. The stator and rotor of the electric slip ring rotate relative to each other to maintain the magnetic attraction of the magnetic suction table and monitor the movement state.

[0014] Optionally, the horizontal motion mechanism also includes a horizontal screw motor and a horizontal movable frame, and the horizontal screw motor is fixedly connected to the frame; the horizontal movable frame is slidably arranged on the horizontal slide rail and screwed and sleeved on the outside of the screw of the horizontal screw motor, and the vertical slide rail is fixedly installed on the horizontal movable frame; the vertical motion mechanism includes a vertical screw motor and a vertical movable frame, the vertical screw motor is fixedly connected to the horizontal movable frame, the vertical movable frame is slidably arranged on the vertical slide rail and screwed and sleeved on the outside of the screw of the vertical screw motor; the grinding wheel drive motor is fixedly connected to the vertical movable frame; the horizontal screw motor and the vertical screw motor are both controlled by the control device.

[0015] The horizontal screw motor drives the horizontal movable frame to move along the horizontal slide rail, and the vertical screw motor drives the vertical movable frame to move along the vertical slide rail, so as to realize the feed adjustment of the grinding wheel main body position.

[0016] Optionally, it also includes an online measuring device, which includes a grating scale, a probe, a cylinder and a data processing unit. The grating scale includes a main scale and a reading head located at the bottom of the main scale; the main scale and the cylinder are fixedly installed on a vertical movable mechanism, the main scale is arranged in parallel with the grinding wheel body, the probe is connected to the reading head, the cylinder is vertically arranged on the top of the probe, the piston rod of the cylinder is connected to the probe, the reading head is connected to the data processing unit signal, and the data processing unit is connected to the control device.

[0017] The online measuring device can automatically measure the workpiece size, improve the measurement efficiency and accuracy, and can also greatly improve the grinding efficiency and grinding accuracy, and improve the automation level and work efficiency of mechanical manufacturing.

[0018] Optionally, it also includes a return pipe, a liquid inlet pipe and a cooling dust suction device with magnetic roller paper bag filter, the cooling dust suction device with magnetic roller paper bag filter has a magnetic separator and a water pump; the magnetic separator has a water inlet, and the vertical movable mechanism is equipped with a water nozzle located next to the grinding wheel body; the frame is provided with an oil return groove, the oil return groove is arranged opposite to the grinding wheel body, the end of the oil return groove facing the magnetic separator is connected to the water inlet through the return pipe, and the outlet of the water pump is connected to the water nozzle through the liquid inlet pipe; the cooling dust suction device with magnetic roller paper bag filter is controlled by the control device.

[0019] The cooling dust collection device with magnetic roller paper bag filter includes a magnetic separator, a paper bag filter, a dust collection device and a water pump. The magnetic separator can effectively remove the solid particles that can be magnetized in the liquid, suck out the iron filings in the coolant, and keep the cutting fluid clean. The paper bag filter can filter the impurities that cannot be separated by the magnetic separator for a second time. The filtered cutting fluid is transported to the grinding wheel body again through a water pump to assist the grinding process and realize wet grinding.

[0020] Optionally, a diamond pen fixing device is also included; the diamond pen fixing device includes a fixing platform, a trimming seat and a fastening bolt, the fixing platform is fixedly connected to the frame, a sliding groove is provided on the fixing platform, the trimming seat is slidably set in the sliding groove, and the fastening bolt is screwed through the trimming seat and pressed against the fixing platform; the top of the trimming seat is provided with an inclined sleeve rod for socketing the diamond pen, and the outer side wall of the inclined sleeve rod is provided with a bolt fixing hole.

[0021] The diamond pen can be mounted on the inclined sleeve rod and fixed by a bolt screwed into the bolt fixing hole. The dressing seat can adjust the position of the diamond pen tip by sliding along the slide groove. The grinding wheel body abuts against the diamond pen tip when rotating to achieve dressing. Since the inclined sleeve rod is inclined, the risk of the diamond pen tip breaking can be greatly reduced compared to a vertical setting.

[0022] A convex grinding method, using the above-mentioned truncated table grinding machine tool, comprises the following steps: Step S1: fix the workpiece on the top of the rotating table, rotate and adjust the angle adjustment frame to make the top of the rotating table tilt away from the grinding wheel body; after the tilt angle is determined, fix the position of the angle adjustment frame by adjusting the component; Step S2: controlling the horizontal motion mechanism to move along the horizontal slide rail and controlling the vertical motion mechanism to move along the vertical slide rail by the control device, so that the edge of the grinding wheel is aligned with the edge of the workpiece; Step S3: The grinding wheel driving motor is started by the control device, and the horizontal motion mechanism moves along the horizontal slide rail to make the grinding wheel body continuously feed toward the rotation center of the workpiece, and the grinding wheel body grinds the workpiece until the workpiece is processed; the vertical motion mechanism moves along the vertical slide rail to control the grinding amount of the workpiece surface; Step S4: The control device controls the grinding wheel drive motor to turn off, and the horizontal motion mechanism and the vertical motion mechanism drive the grinding wheel body to move back.

[0023] The above method can realize grinding of the convex shape on the surface of the workpiece. Since the convex degree of the convex is realized by the inclination angle of the angle adjustment frame, and the inclination angle of the angle adjustment frame is easy to adjust and the position of the angle adjustment frame is stable after being fixed, the stable processing of the convex structure can be realized and the processing accuracy can be easily guaranteed.

[0024] A concave grinding method, using the above-mentioned circular table grinding machine tool, comprises the following steps: Step S1: fix the workpiece on the top of the rotating table, rotate and adjust the angle adjustment frame to make the top of the rotating table tilt toward the direction of the grinding wheel body; after the tilt angle is determined, fix the position of the angle adjustment frame by adjusting the component; Step S2: controlling the horizontal motion mechanism to move along the horizontal slide rail and controlling the vertical motion mechanism to move along the vertical slide rail by the control device, so that the edge of the grinding wheel is aligned with the edge of the workpiece; Step S3: The grinding wheel driving motor is started by the control device, and the horizontal motion mechanism moves along the horizontal slide rail to make the grinding wheel body continuously feed toward the rotation center of the workpiece, and the grinding wheel body grinds the workpiece until the workpiece is processed; the vertical motion mechanism moves along the vertical slide rail to control the grinding amount of the workpiece surface; Step S4: The control device controls the grinding wheel drive motor to turn off, and the horizontal motion mechanism and the vertical motion mechanism drive the grinding wheel body to move back.

[0025] The above method can realize grinding of the concave shape on the surface of the workpiece. Since the degree of the concave is realized by the inclination angle of the angle adjustment frame, and the inclination angle of the angle adjustment frame is easy to adjust and the position of the angle adjustment frame is stable after being fixed, stable processing of the concave structure can be realized and processing accuracy can be easily guaranteed.

[0026] The technical solution of this application has the following beneficial effects compared with the prior art: By adjusting the inclination angle of the angle adjustment frame, the grinding of convex structures, concave structures, horizontal surfaces and stepped surfaces can be achieved without changing the motion mode of the grinding wheel body, and the undulating shape of the surface to be processed can be controlled by the cooperation of the horizontal motion mechanism and the vertical motion mechanism. Compared with the existing technology, it can meet the occasions where grinding is required by the grinding wheel, and the adjustment method is simple and has high processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 It is a schematic diagram of the overall structure of the rotary table grinding machine tool; Figure 2 for Figure 1 A partial enlarged view of the middle part; Figure 3 It is a schematic diagram of the connection structure of the grinding wheel mechanism; Figure 4 It is a schematic diagram of the state of the circular table grinding machine tool processing the step surface; Figure 5 It is a schematic diagram of the state of the convex structure in the machining of the truncated table grinding machine tool; Figure 6 It is a schematic diagram of the state of the concave structure in the round table grinding machine tool; Figure 7 It is a schematic diagram of the planar workpiece structure; Figure 8 It is a schematic diagram of the step workpiece structure; Fig. 9 It is a schematic diagram of the structure of a convex structure workpiece; Fig.10 It is a schematic diagram of the workpiece structure of the concave structure; Fig.11 It is a cross-sectional view of the turntable motor and the turntable transmission structure; Fig.12 It is a schematic diagram of the structure of the oil inlet pipe and the oil outlet pipe; Fig.13 The schematic diagram of the rotary table grinding machine tool after the end of the oil outlet pipe is aligned; Fig.14 for Fig.13 Sectional view at AA; Fig.15 It is a schematic diagram of the connection structure of the online measurement device; Fig.16 This is the front view of the overall structure of the round table grinding machine tool; Fig.17 It is a schematic diagram of the rear structure of the rotary table grinding machine tool; Fig.18 for Figure 2 A partial enlarged view of point B in the middle; Fig.19 This is a schematic diagram of the machine tool shock-absorbing pad and support bolt structure.

[0029] Icons: 100, control device; 1, frame; 101, horizontal slide rail; 102, oil return groove; 201, vertical slide rail; 202, horizontal screw motor; 203, horizontal movable frame; 301, vertical screw motor; 302, vertical movable frame; 4, grinding wheel mechanism; 401, grinding wheel drive motor; 402, grinding wheel body; 5, loading device; 501, turntable motor; 502, turntable; 503, angle adjustment frame; 504, rotating shaft; 505, adjusting bolt; 506, locking bolt; 507, connecting part; 508, arc-shaped connecting hole; 5 09, oil inlet sleeve; 510, fixed sleeve; 511, connecting sleeve; 512, hydrostatic bearing; 513, ball bearing; 514, oil inlet pipe; 515, oil outlet pipe; 516, electric slip ring; 517, mounting hole; 518, connecting plate; 519, oil inlet channel; 520, oil chamber; 523, stator; 524, rotor; 525, first multi-V belt pulley; 526, second multi-V belt pulley; 527, multi-V belt; 6, hydrostatic turntable hydraulic station; 701, probe; 702, cylinder; 703, data processing unit; 704, main scale; 705, reading head; 8. Cooling dust collection device with magnetic roller paper bag filter; 801. Magnetic separator; 802. Water pump; 803. Water inlet; 804. Liquid return pipe; 805. Liquid inlet pipe; 806. Water nozzle; 9. Diamond pen fixing device; 901. Fixing table; 902. Dressing seat; 903. Fastening bolt; 904. Slide; 905. Tilting sleeve rod; 906. Bolt fixing hole; 10. Machine tool shock absorbing pad; 11. Support bolt; 12. High-precision grinder spindle. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] Embodiment 1: This embodiment provides a circular table grinding machine tool, based on Figures 1 to 3 As shown, it includes a frame 1, a horizontal motion mechanism, a vertical motion mechanism, a grinding wheel mechanism 4, a loading device 5 and a control device 100. Among them, the frame 1 is provided with a horizontal slide rail 101, and the horizontal motion mechanism is slidably arranged on the horizontal slide rail 101; the horizontal motion mechanism has a vertical slide rail 201, and the vertical motion mechanism is slidably arranged on the vertical slide rail 201. The grinding wheel mechanism 4 includes a grinding wheel drive motor 401 and a grinding wheel body 402 connected to the output end of the grinding wheel drive motor 401, and the grinding wheel drive motor 401 is connected to the vertical motion mechanism. The grinding wheel body 402 is driven by the grinding wheel drive motor 401. The control device 100 realizes the feed adjustment of the grinding wheel position by controlling the horizontal motion mechanism and the vertical motion mechanism to move along the horizontal slide rail 101 and the vertical slide rail 201 respectively, so as to grind the surface of the workpiece. The object carrier 5 includes a turntable motor 501 and a rotating table 502. The turntable motor 501 is installed on the frame 1. The rotating table 502 is connected to the turntable motor 501 by transmission. The rotating table 502 is located at the bottom of the grinding wheel body 402. The object carrier is used to carry the workpiece. The turntable motor 501 drives the rotating table 502 to rotate, and the grinding wheel body 402 grinds the rotating workpiece surface. The horizontal motion mechanism, the vertical motion mechanism, the grinding wheel drive motor 401 and the turntable motor 501 are all controlled by the control device 100.

[0032] On the basis of the above structure, the object carrying device 5 further includes an angle adjustment frame 503 and an adjustment component, and the rotating platform 502 is installed on the angle adjustment frame 503. One end of the angle adjustment frame 503 has a rotating shaft 504, and the angle adjustment frame 503 is rotatably connected to the frame 1 through the rotating shaft 504, and the other end of the angle adjustment frame 503 can be pitched and swung and is fixedly connected to the frame 1 through the adjustment component.

[0033] The control device 100 is a common PLC controller. Figures 4 to 10As shown, by adjusting the adjustment component, the angle adjustment frame 503 can rotate along the rotating shaft 504, and adjust the inclination angle of the rotating table 502 to adjust the inclination angle of the surface to be processed of the workpiece. When the surface to be processed is parallel to the horizontal plane, the grinding of the plane workpiece or the grinding of the stepped workpiece structure can be realized. When the surface to be processed is tilted toward the grinding wheel, the processing of the concave structure workpiece can be realized. When the surface to be processed is tilted away from the grinding wheel, the processing of the convex structure workpiece can be realized. And through the cooperation of the horizontal motion mechanism and the vertical motion mechanism, the undulating shape of the surface to be processed can be controlled. Compared with the prior art, the processing of the convex structure, the concave structure, the plane structure and the step structure can be realized by the grinding wheel, and the adjustment method is simple, and the processing accuracy is easy to control. The undulation of the workpiece surface can also be controlled by the feeding of the horizontal motion mechanism and the vertical motion mechanism.

[0034] Among them, based on Figure 2 As shown, the adjustment component includes an adjustment bolt 505 and a locking bolt 506. The adjustment bolt 505 is screwed from the top and passes through the angle adjustment frame 503 and abuts against the frame 1. The frame 1 is provided with a connection part 507 clamped on both sides of the angle adjustment frame 503. The two connection parts 507 are both provided with an arc-shaped connection hole 508 with the axis of the rotating shaft 504 as the center of the circle. The locking bolt 506 passes through the arc-shaped connection hole 508 from the outside and is screwed and connected with the angle adjustment frame 503. By screwing the adjustment bolt 505, the distance that the adjustment bolt 505 extends out of the angle adjustment frame 503 is controlled, and the angle of the angle adjustment frame 503 can be controlled. When the angle adjustment is completed, the position of the angle adjustment frame 503 can be locked and fixed by the locking bolt 506. The result is simple and easy to adjust.

[0035] Further, based on Fig.11 As shown, the object carrying device 5 further includes a poly-V belt 527, a first poly-V belt pulley 525 and a second poly-V belt pulley 526; a rotating shaft 504 is provided at the bottom of the rotating table 502, the first poly-V belt pulley 525 is fixedly sleeved on the outer side of the rotating shaft 504, the second poly-V belt pulley 526 is fixedly installed at the output end of the rotating table motor 501, and the poly-V belt 527 is closed-looped and arranged on the outer sides of the first poly-V belt pulley 525 and the second poly-V belt pulley 526. The rotating table motor 501 is connected to the rotating table 502 through the poly-V belt 527, the first poly-V belt pulley 525, the second poly-V belt pulley 526 and the rotating shaft 504. Since the poly-V belt 527 has a certain torsion deformation characteristic, within a certain deflection range of the angle adjustment frame 503, it does not affect the transmission connection between the rotating table motor 501 and the rotating table 502, thereby ensuring the stable rotation of the rotating table 502.

[0036] Further, based on Figures 12 to 14As shown, it also includes a hydrostatic turntable hydraulic station 6. The hydrostatic turntable hydraulic station 6 is a common device for providing lubricating oil, which is used to provide lubrication for the rotation of the turntable 502. Among them, the object carrying device 5 also includes an oil inlet sleeve 509, a fixed sleeve 510, a connecting sleeve 511, a hydrostatic bearing 512, a ball bearing 513, an oil inlet pipe 514, an oil outlet pipe 515 and an electric slip ring 516. The angle adjustment frame 503 is provided with a mounting hole 517, and the top of the turntable 502 is a magnetic suction table. The magnetic suction table can fix adsorbable workpieces by magnetic suction. For non-adsorbable workpieces, the workpiece can be clamped by an adsorbable fixture and then the fixture can be adsorbed on the magnetic suction table. The rotating shaft 504, the hydrostatic bearing 512 and the oil inlet sleeve 509 are nested in sequence from the inside to the outside, and the oil inlet sleeve 509 is fixedly installed in the mounting hole 517. The rotating shaft 504 realizes relative rotation with the oil inlet sleeve 509 through the hydrostatic bearing 512.

[0037] The connecting sleeve 511 is fixedly sleeved on the bottom end of the rotating shaft 504, the fixing sleeve 510 is sleeved on the outside of the rotating shaft 504 and the connecting sleeve 511 at intervals, and the fixing sleeve 510 is bolted to the bottom end of the oil inlet sleeve 509. The first multi-V belt pulley 525 is rotatably sleeved on the outside of the fixing sleeve 510 through the ball bearing 513, and the bottom end of the connecting sleeve 511 is provided with a connecting plate 518 extending to the bottom end of the first multi-V belt pulley 525, and the bottom end of the first multi-V belt pulley 525 is bolted to the connecting plate 518. The first multi-V belt pulley 525 is fixedly connected to the rotating shaft 504 through the connecting sleeve 511, so that the rotating shaft 504 and the first multi-V belt pulley 525 rotate synchronously. Since there is a gap between the fixing sleeve 510 and the rotating shaft 504 and the connecting sleeve 511, the rotation of the rotating shaft 504 and the connecting sleeve 511 will not generate sliding friction between the fixing sleeve 510.

[0038] An oil inlet channel 519 is provided inside the oil inlet sleeve 509. The hydrostatic bearing 512, the oil inlet sleeve 509, the fixed sleeve 510 and the rotating shaft 504 form an oil chamber 520. The oil inlet channel 519 is connected to the hydrostatic bearing 512. The outlet of the hydrostatic turntable hydraulic station 6 is connected to the oil inlet channel 519 through the oil inlet pipe 514, and the inlet of the hydrostatic turntable hydraulic station 6 is connected to the oil chamber 520 through the oil outlet pipe 515. The lubricating oil in the hydrostatic turntable hydraulic station 6 can enter the hydrostatic bearing 512 through the oil inlet pipe 514 and the oil inlet channel 519, providing oil pressure and lubrication to the hydrostatic bearing 512. The lubricating oil then moves downward and falls into the oil chamber 520, and then flows back to the hydrostatic turntable hydraulic station 6 through the oil outlet pipe 515. The electric slip ring 516 includes a stator 523 and a rotor 524 located inside the stator 523. The rotor 524 is fixedly connected to the bottom end of the rotating shaft 504. The stator 523 is fixedly connected to the frame 1. The stator 523 is connected to the magnetic attraction platform through a wire. The stator 523 and the rotor 524 of the electric slip ring 516 rotate relative to each other to maintain the magnetic attraction of the magnetic attraction platform and monitor the movement state.

[0039] Further, based on Figure 1 As shown, the horizontal motion mechanism also includes a horizontal screw motor 202 and a horizontal movable frame 203, and the horizontal screw motor 202 is fixedly connected to the frame 1. The horizontal movable frame 203 is slidably arranged on the horizontal slide rail 101 and is screwed and sleeved on the outer side of the screw of the horizontal screw motor 202, and the vertical slide rail 201 is fixedly installed on the horizontal movable frame 203. The vertical motion mechanism includes a vertical screw motor 301 and a vertical movable frame 302, and the vertical screw motor 301 is fixedly connected to the horizontal movable frame 203, and the vertical movable frame 302 is slidably arranged on the vertical slide rail 201 and is screwed and sleeved on the outer side of the screw of the vertical screw motor 301. The grinding wheel drive motor 401 is fixedly connected to the vertical movable frame 302; the horizontal screw motor 202 and the vertical screw motor 301 are both controlled by the control device 100. The horizontal screw motor 202 drives the horizontal movable frame 203 to move along the horizontal slide rail 101, and the vertical screw motor 301 drives the vertical movable frame 302 to move along the vertical slide rail 201 to achieve the feed adjustment of the position of the grinding wheel body 402. Among them, the sliding surfaces of the horizontal slide rail 101 and the vertical slide rail 201 are manually scraped and polished to ensure the running accuracy and improve the processing accuracy.

[0040] Further, based on Fig.15 As shown, an online measuring device is also included. Among them, the online measuring device includes a grating ruler, a probe 701, a cylinder 702 and a data processing unit 703, and the grating ruler includes a main ruler 704 and a reading head 705 located at the bottom of the main ruler 704. The main ruler 704 and the cylinder 702 are fixedly installed on the vertical movable mechanism, the main ruler 704 is arranged in parallel with the grinding wheel body 402, the probe 701 is connected to the reading head 705, the cylinder 702 is vertically arranged on the top of the probe 701, the piston rod of the cylinder 702 is connected to the probe 701, the reading head 705 is connected to the data processing unit 703 signal, and the data processing unit 703 is connected to the control device 100. Specifically, the data processing unit 703 in this embodiment adopts the publication number CN210704305U applied by the applicant, and the name is the data processing unit 703 in the automatic online measuring device of the surface grinder, which will not be repeated.

[0041] When in use, the distance D between the workpiece surface and the standard test piece surface is measured by the probe 701 and the grating ruler, and D is the grinding amount required for processing. When the probe 701 contacts the upper surface of the workpiece, it is the initial position of the side head, and the control device 100 controls the horizontal motion mechanism, the vertical motion mechanism and the grinding wheel mechanism 4 to grind the workpiece surface. After a period of processing, the cylinder 702 drives the probe 701 to move downward from the initial position until it contacts the processing surface. The reading head 705 detects the moving distance h and sends the moving distance data h to the data processing unit 703. The data processing unit 703 compares h and D, and the calculated A is the remaining grinding allowance A=Dh. The control device 100 controls the horizontal motion mechanism, the vertical motion mechanism and the grinding wheel mechanism 4 to continue grinding the workpiece surface until the allowance A is completed.

[0042] The online measuring device can automatically measure the workpiece size, improve the measurement efficiency and accuracy, and can also greatly improve the grinding efficiency and grinding accuracy, and improve the automation level and work efficiency of mechanical manufacturing.

[0043] Further, based on Fig.16 and Fig.17 As shown, it also includes a liquid return pipe 804, a liquid inlet pipe 805 and a cooling dust suction device 8 with magnetic roller paper bag filtration. The cooling dust suction device 8 with magnetic roller paper bag filtration adopts the cooling dust suction device 8 with magnetic roller paper bag filtration with publication number CN210121788U applied by the applicant. In this scheme, the cooling dust suction device 8 with magnetic roller paper bag filtration has a magnetic separator 801 and a water pump 802, and of course also includes the recorded magnetic separator 801, paper bag filter, dust suction device and water pump 802 and other mechanisms. The present application integrates the cooling dust suction device 8 with magnetic roller paper bag filtration into the round table grinding machine.

[0044] In this embodiment, the magnetic separator 801 has a water inlet 803, and the vertical movable mechanism is equipped with a water nozzle 806 located next to the grinding wheel body 402. The frame 1 is provided with an oil return groove 102, which is arranged opposite to the grinding wheel body 402. The end of the oil return groove 102 facing the magnetic separator 801 is connected to the water inlet 803 through the liquid return pipe 804, and the outlet of the water pump 802 is connected to the water nozzle 806 through the liquid inlet pipe 805. The cooling dust suction device 8 with magnetic roller paper bag filtering is controlled by the control device 100.

[0045] The magnetic separator 801 in the cooling dust collection device 8 with magnetic roller paper bag filtration can effectively remove the magnetizable solid particles in the liquid, suck out the iron filings in the coolant, and keep the cutting fluid clean. The paper bag filter can filter the impurities that the magnetic separator 801 cannot separate for a second time. The filtered cutting fluid is transported to the grinding wheel body 402 again through the water pump 802 to assist the grinding process, thereby realizing wet grinding.

[0046] Further, based on Figure 1 , Figure 2 and Fig.18 As shown, it also includes a diamond pen fixing device 9; the diamond pen fixing device 9 includes a fixing platform 901, a dressing seat 902 and a fastening bolt 903, the fixing platform 901 is fixedly connected to the frame 1, a slide groove 904 is provided on the fixing platform 901, the dressing seat 902 is slidably set in the slide groove 904, and the fastening bolt 903 is screwed through the dressing seat 902 and pressed against the fixing platform 901. The top of the dressing seat 902 is provided with an inclined sleeve rod 905 for sleeved diamond pen, and the outer side wall of the inclined sleeve rod 905 is provided with a bolt fixing hole 906. The diamond pen can be sleeved on the inclined sleeve rod 905 and fixed by a bolt screwed into the bolt fixing hole 906. The dressing seat 902 adjusts the position of the diamond pen tip by sliding along the slide groove 904. The grinding wheel body 402 abuts against the tip of the diamond pen when rotating to achieve dressing. The inclined sleeve rod 905 is inclined. In actual use, the inclination angle is not greater than 15 degrees. Compared with the vertical setting, the risk of the diamond pen tip breaking can be greatly reduced.

[0047] In this embodiment, based on Figure 3 and Fig.15 As shown, for the grinding wheel mechanism 4, the grinding wheel drive motor 401 is connected to the grinding wheel body 402 through the high-precision grinder spindle 12. The high-precision grinder spindle 12 adopts a high-precision grinder spindle with the publication number CN214186749U applied by the applicant, and the specific structure is not repeated. The high-precision grinder spindle 12 can ensure the processing accuracy while facilitating later maintenance. A grinding wheel cover can be provided at the front end of the grinding wheel body 402 to ensure the safety of grinding.

[0048] At the same time, based on Figure 2 and Fig.19 As shown, a plurality of machine tool shock absorbing pads 10 are arranged around the bottom of the frame 1, and each machine tool shock absorbing pad 10 is matched with a supporting bolt 11 provided with a round head. The supporting bolt 11 is screwed through the frame 1 from the top and supported on the supporting machine tool shock absorbing pad 10. Through the adjustment of the plurality of supporting bolts 11, the level of the frame 1 can be ensured on the inclined ground. The machine tool shock absorbing pad 10 can ensure the support rigidity of the machine while ensuring the support.

[0049] Embodiment 2: A convex grinding method, using the truncated table grinding machine tool in Example 1, is used to process Fig. 9 The convex workpiece shown includes the following steps: Step S1: fix the workpiece on the top of the rotating table 502, and rotate and adjust the angle adjustment frame 503 to make the top of the rotating table 502 tilt away from the grinding wheel body 402. After confirmation, fix the position of the angle adjustment frame 503 by adjusting components.

[0050] For workpieces that can be magnetically attracted, they can be directly fixed on the magnetic table by adsorption. For workpieces that cannot be adsorbed, a special adsorbable fixture can be designed, the workpiece is clamped on the fixture, and the fixture is adsorbed on the magnetic table. The tilt angle is determined by the degree of convexity.

[0051] Step S2: The control device 100 controls the horizontal motion mechanism to move along the horizontal slide rail 101 and controls the vertical motion mechanism to move along the vertical slide rail 201 so that the edge of the grinding wheel is aligned with the edge of the workpiece as the processing zero point.

[0052] Step S3: The control device 100 controls the grinding wheel drive motor 401 to start, and the horizontal motion mechanism moves along the horizontal slide rail 101 to make the grinding wheel body 402 continuously feed toward the rotation center of the workpiece, and the grinding wheel body 402 grinds the workpiece until the workpiece is processed. The vertical motion mechanism moves along the vertical slide rail 201 to control the grinding amount of the workpiece surface.

[0053] Step S4: the control device 100 controls the grinding wheel driving motor 401 to turn off, and the horizontal motion mechanism and the vertical motion mechanism drive the grinding wheel body 402 to move back to its original position.

[0054] The above method can realize grinding of the convex shape on the surface of the workpiece. Since the convex degree of the convex is realized by the inclination angle of the angle adjustment frame 503, and the inclination angle of the angle adjustment frame 503 is easy to adjust and the position of the angle adjustment frame 503 is stable after being fixed, the stable processing of the convex structure can be realized and the processing accuracy can be easily ensured.

[0055] Embodiment 2: A concave grinding method, using the circular table grinding machine tool in Example 1, is used to process Fig.10 The concave workpiece shown includes the following steps: Step S1: fix the workpiece on the top of the rotating table 502, rotate and adjust the angle adjustment frame 503, so that the top of the rotating table 502 is tilted toward the grinding wheel body 402; after the tilt angle is determined, fix the position of the angle adjustment frame 503 through the adjustment component.

[0056] For workpieces that can be magnetically attracted, they can be directly fixed on the magnetic table by adsorption. For workpieces that cannot be adsorbed, a special adsorbable fixture can be designed, the workpiece is clamped on the fixture, and the fixture is adsorbed on the magnetic table. The tilt angle is determined by the degree of convexity.

[0057] Step S2: The control device 100 controls the horizontal motion mechanism to move along the horizontal slide rail 101 and controls the vertical motion mechanism to move along the vertical slide rail 201 so that the edge of the grinding wheel is aligned with the edge of the workpiece as the processing zero point.

[0058] Step S3: The grinding wheel drive motor 401 is started by the control device 100, and the horizontal motion mechanism moves along the horizontal slide rail 101 to make the grinding wheel body 402 continuously feed toward the rotation center of the workpiece, and the grinding wheel body 402 grinds the workpiece until the workpiece is processed; the vertical motion mechanism moves along the vertical slide rail 201 to control the grinding amount of the workpiece surface.

[0059] Step S4: the control device 100 controls the grinding wheel driving motor 401 to turn off, and the horizontal motion mechanism and the vertical motion mechanism drive the grinding wheel body 402 to move back to its original position.

[0060] The above method can realize grinding of the concave shape on the surface of the workpiece. Since the degree of the concave is realized by the inclination angle of the angle adjustment frame 503, and the inclination angle of the angle adjustment frame 503 is easy to adjust and the position of the angle adjustment frame 503 is stable after being fixed, stable processing of the concave structure can be realized and processing accuracy can be easily ensured.

[0061] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A circular table grinding machine tool, comprising a frame, a horizontal motion mechanism, a vertical motion mechanism, a grinding wheel mechanism, a loading device and a control device; The frame is provided with a horizontal slide rail, and the horizontal motion mechanism is slidably arranged on the horizontal slide rail; the horizontal motion mechanism has a vertical slide rail, and the vertical motion mechanism is slidably arranged on the vertical slide rail; the grinding wheel mechanism includes a grinding wheel drive motor and a grinding wheel body connected to the output end of the grinding wheel drive motor, and the grinding wheel drive motor is connected to the vertical motion mechanism; the loading device includes a turntable motor and a rotating table, the turntable motor is installed on the frame, the rotating table is transmission-connected to the turntable motor, and the rotating table is located at the bottom of the grinding wheel body; the horizontal motion mechanism, the vertical motion mechanism, the grinding wheel drive motor and the turntable motor are all controlled by the control device; Features: The object-carrying device also includes an angle adjustment frame and an adjustment component, and the rotating platform is installed on the angle adjustment frame; one end of the angle adjustment frame has a rotating shaft, and the angle adjustment frame is rotatably connected to the frame through the rotating shaft, and the other end of the angle adjustment frame can swing in pitch and is fixedly connected to the frame through the adjustment component.

2. The circular table grinding machine tool according to claim 1, characterized in that: The adjusting component comprises an adjusting bolt and a locking bolt; The adjusting bolt is screwed through the angle adjusting frame from the top and abuts against the frame; the frame is provided with connecting parts clamped on both sides of the angle adjusting frame, and both connecting parts are provided with arc-shaped connecting holes with the axis of the rotating shaft as the center of the circle, and the locking bolt passes through the arc-shaped connecting hole from the outside and is screwed and connected to the angle adjusting frame.

3. The circular table grinding machine tool according to claim 2, characterized in that: The loading device also includes a multi-V belt, a first multi-V belt pulley and a second multi-V belt pulley; a rotating shaft is provided at the bottom of the rotating table, the first multi-V belt pulley is fixedly sleeved on the outside of the rotating shaft, the second multi-V belt pulley is fixedly installed on the output end of the turntable motor, and the multi-V belt closed loop is arranged on the outside of the first multi-V belt pulley and the second multi-V belt pulley.

4. The circular table grinding machine tool according to claim 3, characterized in that: It also includes a hydrostatic turntable hydraulic station, and the object-carrying device also includes an oil inlet sleeve, a fixed sleeve, a connecting sleeve, a hydrostatic bearing, a ball bearing, an oil inlet pipe, an oil outlet pipe and an electric slip ring; the angle adjustment frame is provided with a mounting hole, and the top of the turntable is a magnetic suction table; The rotating shaft, the static pressure bearing and the oil inlet sleeve are nested in sequence from the inside to the outside, and the oil inlet sleeve is fixedly installed in the mounting hole; the connecting sleeve is fixedly sleeved on the bottom end of the rotating shaft, the fixing sleeve is sleeved on the outside of the rotating shaft and the connecting sleeve at intervals, and the fixing sleeve is bolted to the bottom end of the oil inlet sleeve; the first multi-V belt pulley is rotatably sleeved on the outside of the fixing sleeve through the ball bearing, and the bottom end of the connecting sleeve is provided with a connecting disk extending to the bottom end of the first multi-V belt pulley, and the bottom end of the first multi-V belt pulley is bolted to the connecting disk; The oil inlet sleeve is provided with an oil inlet passage inside, the hydrostatic bearing, the oil inlet sleeve, the fixed sleeve and the rotating shaft form an oil chamber, and the oil inlet passage is connected to the hydrostatic bearing; the outlet of the hydrostatic turntable hydraulic station is connected to the oil inlet passage through the oil inlet pipe, and the inlet of the hydrostatic turntable hydraulic station is connected to the oil chamber through the oil outlet pipe; The electric slip ring comprises a stator and a rotor located inside the stator, the rotor is fixedly connected to the bottom end of the rotating shaft, the stator is fixedly connected to the frame, and the stator is connected to the magnetic suction platform through a wire.

5. The circular table grinding machine tool according to claim 1, characterized in that: The horizontal motion mechanism also includes a horizontal screw motor and a horizontal movable frame, wherein the horizontal screw motor is fixedly connected to the frame; the horizontal movable frame is slidably arranged on the horizontal slide rail and is screwed and sleeved on the outside of the screw of the horizontal screw motor, and the vertical slide rail is fixedly installed on the horizontal movable frame; The vertical motion mechanism includes a vertical screw motor and a vertical movable frame, the vertical screw motor is fixedly connected to the horizontal movable frame, the vertical movable frame is slidably arranged on the vertical slide rail and is screwed and sleeved on the outside of the screw of the vertical screw motor; the grinding wheel drive motor is fixedly connected to the vertical movable frame; the horizontal screw motor and the vertical screw motor are both controlled by the control device.

6. The circular table grinding machine tool according to claim 1, characterized in that: It also includes an online measuring device, which includes a grating ruler, a probe, a cylinder and a data processing unit, and the grating ruler includes a main ruler and a reading head located at the bottom end of the main ruler; The main scale and the cylinder are fixedly installed on the vertical movable mechanism, the main scale is arranged in parallel with the grinding wheel body, the probe is connected to the reading head, the cylinder is vertically arranged on the top of the probe, the piston rod of the cylinder is connected to the probe, the reading head is connected to the data processing unit signal, and the data processing unit is connected to the control device.

7. The circular table grinding machine tool according to claim 1, characterized in that: It also includes a liquid return pipe, a liquid inlet pipe and a cooling dust suction device with magnetic roller paper bag filtration, wherein the cooling dust suction device with magnetic roller paper bag filtration has a magnetic separator and a water pump; the magnetic separator has a water inlet, and the vertical movable mechanism is equipped with a water nozzle located next to the grinding wheel body; The frame is provided with an oil return groove, and the oil return groove is arranged opposite to the grinding wheel body. The end of the oil return groove facing the magnetic separator is connected with the water inlet through the liquid return pipe, and the outlet of the water pump is connected with the water nozzle through the liquid inlet pipe; the cooling dust collection device with magnetic roller paper bag filtering is controlled by the control device.

8. The circular table grinding machine tool according to claim 1, characterized in that: It also includes a diamond pen fixing device; the diamond pen fixing device includes a fixing platform, a trimming seat and a fastening bolt, the fixing platform is fixedly connected to the frame, a sliding groove is provided on the fixing platform, the trimming seat is slidably set in the sliding groove, and the fastening bolt is screwed through the trimming seat and pressed against the fixing platform; the top of the trimming seat is provided with an inclined sleeve rod for socketing the diamond pen, and the outer side wall of the inclined sleeve rod is provided with a bolt fixing hole.

9. A convex grinding method, using the truncated table grinding machine tool as claimed in any one of claims 1 to 8, comprising the following steps: Step S1: fix the workpiece on the top of the rotating table, rotate and adjust the angle adjustment frame to make the top of the rotating table tilt away from the grinding wheel body; after the tilt angle is determined, fix the position of the angle adjustment frame by adjusting the component; Step S2: controlling the horizontal motion mechanism to move along the horizontal slide rail and controlling the vertical motion mechanism to move along the vertical slide rail by the control device, so that the edge of the grinding wheel is aligned with the edge of the workpiece; Step S3: The grinding wheel driving motor is started by the control device, and the horizontal motion mechanism moves along the horizontal slide rail to make the grinding wheel body continuously feed toward the rotation center of the workpiece, and the grinding wheel body grinds the workpiece until the workpiece is processed; the vertical motion mechanism moves along the vertical slide rail to control the grinding amount of the workpiece surface; Step S4: The control device controls the grinding wheel drive motor to turn off, and the horizontal motion mechanism and the vertical motion mechanism drive the grinding wheel body to move back.

10. A concave grinding method, using the circular table grinding machine tool as claimed in any one of claims 1 to 8, comprising the following steps: Step S1: fix the workpiece on the top of the rotating table, rotate and adjust the angle adjustment frame to make the top of the rotating table tilt toward the direction of the grinding wheel body; after the tilt angle is determined, fix the position of the angle adjustment frame by adjusting the component; Step S2: controlling the horizontal motion mechanism to move along the horizontal slide rail and controlling the vertical motion mechanism to move along the vertical slide rail by the control device, so that the edge of the grinding wheel is aligned with the edge of the workpiece; Step S3: The grinding wheel driving motor is started by the control device, and the horizontal motion mechanism moves along the horizontal slide rail to make the grinding wheel body continuously feed toward the rotation center of the workpiece, and the grinding wheel body grinds the workpiece until the workpiece is processed; the vertical motion mechanism moves along the vertical slide rail to control the grinding amount of the workpiece surface; Step S4: The control device controls the grinding wheel drive motor to turn off, and the horizontal motion mechanism and the vertical motion mechanism drive the grinding wheel body to move back.

Images