A detection device and method for a high-speed precision rotary table

Abstract

The application relates to the technical field of rotary table detection, and discloses a detection device for a high-speed precision rotary table, which comprises a frame, an operation plate is arranged on the inner side of the frame, a bottom frame is arranged at the bottom end of the inner wall of the frame, a pushing cylinder is arranged at the top end of the inner side of the bottom frame, the output end of the pushing cylinder penetrates through the bottom frame and is connected with a clamping mechanism, and the top end of the clamping mechanism is connected with a rotary table body. Through the cooperation between the top surface testing mechanism, the edge detection mechanism, the suspension mechanism and the magnetic energy mechanism in the annular fixed table, the rotary table can be subjected to resistance testing, top surface flatness detection, eccentricity testing and other detections in the same device, the rotary table does not need to be transferred to different detection fixtures and devices, the consumption of human resources is greatly reduced, the detection efficiency of the rotary table is effectively improved, and the clamping mechanism can be used for fixing rotary tables of various models in cooperation with the pushing cylinder.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rotary table detection, in particular to a detection device and method for high-speed precision rotary table. BACKGROUND

[0002] High-speed precision rotary table is a device for high-precision rotary motion. By introducing a special servo system, various parameter requirements, including angle range, angular acceleration, speed, positioning accuracy and repeatability, can be met. It can be used in various rotary motion occasions, especially in applications requiring high precision and high speed. It is widely used in optical detection, precision manufacturing, nanotechnology and automation equipment fields.

[0003] Currently, rotary tables need to be tested for resistance, top flatness and eccentricity before being shipped, to ensure their precision, stability and reliability in actual applications. They are also suitable for regular maintenance and calibration during device use. Currently, special fixtures or calibration equipment are required for testing rotary tables, and different rotary tables are tested on different equipment. This not only increases the consumption of human resources, but also reduces the efficiency of rotary table inspection. SUMMARY

[0004] The present application aims to provide a detection device for high-speed precision rotary table to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a frame is provided, an operation board is connected to the inner side of the frame, a bottom frame is connected to the inner wall bottom of the frame, a push air cylinder is connected to the inner side top of the bottom frame, the output end of the push air cylinder penetrates the bottom frame and is connected to a clamping mechanism, the top of the clamping mechanism is connected to a rotary table body, the top of the operation board is connected to a ring-shaped fixed table, a suspension mechanism is connected to the inside of the ring-shaped fixed table, a connecting frame is connected to the top of the suspension mechanism, a magnetic energy mechanism is connected to the inside of the ring-shaped fixed table, an extension frame is rotatably connected to the inner side of the connecting frame, a connecting air cylinder is connected to the inner side of the extension frame, the output end of the connecting air cylinder penetrates the extension frame and is connected to a lower pressing ring-shaped frame, a fixed air cylinder is connected to one side of the extension frame, the output end of the fixed air cylinder penetrates the extension frame and is connected to a table edge detection mechanism, a top surface testing mechanism is connected to the top of the inner wall of the frame, a controller is connected to one side of the frame, a through hole is formed in the top of the operation board corresponding to the rotary table body, and a shock-absorbing rubber pad is connected to the bottom of the operation board.

[0006] The suspension mechanism includes a suspension frame rotatably mounted inside an annular fixed platform and a second magnet fixedly mounted on the top of the inner wall of the annular fixed platform. An electromagnet ring is connected to the bottom end of the suspension frame, and a first magnet is connected to both sides of the top end of the suspension frame.

[0007] The magnetic energy mechanism includes a heat-insulated and sealed box fixedly installed at the bottom of the inner side of the annular fixed platform. A superconductor is connected and installed inside the heat-insulated and sealed box. A vacuum heat-insulated hose is connected and installed on one side of the heat-insulated and sealed box. A Dewar flask is connected and installed on the other side of the vacuum heat-insulated hose. A valve is connected and installed at the end of the vacuum heat-insulated hose near the Dewar flask.

[0008] Preferably, supplementary lights are connected to both sides of the top surface testing mechanism on the inner wall of the frame, and multi-purpose mounting brackets are connected to both sides of the inner wall of the frame.

[0009] Preferably, the top of the suspension frame is provided with an installation groove, and a coil is connected to the bottom of the inner side of the installation groove. A partition is connected to the top surface of the coil. The downward pressing ring frame is located at the top of the installation groove. Limiting racks are connected to the sides of the downward pressing ring frame and the partition that are close to each other, and magnetorheological fluid is filled between them.

[0010] Preferably, the clamping mechanism includes a housing base, two sets of extrusion cylinders are connected to one side of the inner wall of the housing base, each extrusion cylinder output end is connected to a push plate, a clamping plate is connected to the top of the push plate, a guide hole is opened at the top of the housing base corresponding to the clamping plate, the turntable body is connected between the clamping plates, and a guide rod is connected to the bottom end of the housing base, the bottom end of the guide rod is slidably connected to the base frame.

[0011] Preferably, the top surface testing mechanism includes a mounting housing fixedly installed at the top of the inner wall of the frame. Three sets of screws are rotatably installed inside the mounting housing. Each screw has a driven bevel gear connected to one end close to the others. A movable plate is threaded to one end of each screw. One side of the movable plate penetrates the mounting housing and is connected to a laser displacement sensor. A rotating disk is rotatably installed at the bottom of the mounting housing via a circular shaft. The top end of the circular shaft extends into the mounting housing and is connected to a driving bevel gear. The driving bevel gear meshes with each driven bevel gear. A laser lamp is connected to the bottom of the rotating disk.

[0012] Preferably, the platform edge detection mechanism includes a fixed arc-shaped plate fixedly mounted at the output end of a fixed cylinder. A torque sensor is connected to one side of the fixed arc-shaped plate, and a connecting plate is connected to the other side of the torque sensor. Elastic side plates are connected to both sides of the connecting plate. A rotating frame is rotatably mounted on the side of the elastic side plates that are far apart from each other. A laser ranging sensor is connected to both sides of the fixed arc-shaped plate corresponding to the rotating frame.

[0013] Preferably, the side of the connecting plate is provided with a non-slip pad, and the side of the rotating frame is sleeved with a non-slip sleeve.

[0014] Preferably, the detection method of the detection device of the high-speed precision rotary table comprises the following steps:

[0015] S1, the light beam projected by the laser lamp on the top end of the clamping mechanism is used as a position marker, the rotary table body to be detected is placed on the top end of the clamping mechanism, the extrusion cylinder is driven to retract to drive the push plate to slide along the guide hole, so that the rotary table body is simply fixed by the clamping plate, then the push cylinder is used to lift the clamping mechanism upward, so that the rotary table on the top end of the rotary table body penetrates through the through hole on the operation plate table and is located inside the annular fixing table, at the same time, the shell of the rotary table body abuts against one side of the shock-absorbing rubber pad, thereby maintaining the positioning stability effect of the rotary table body, and then an external power supply is externally connected to the rotary table body;

[0016] S2, the fixed cylinder is started to push the edge detection mechanism, the rotating frame is attached to the surface of the rotary table through the non-slip sleeve, the rotating disc is rotated, the driving bevel gear is engaged with each driven bevel gear to drive the screw rod, thereby moving the moving plate, adjusting the monitoring position of the laser displacement sensor on the surface of the rotary table, so that the monitoring point falls on the top end of the rotary table body, the rotary table body is started to rotate, the elastic side plate has a certain elasticity, and when the rotary table body is unstable, the rotating frame will shake, the laser distance sensor will monitor the position relationship of the rotating frame in real time, and the rotary table is detected from the top surface and the side surface of the rotary table to detect the rotation stability of the rotary table;

[0017] S3, the fixed cylinder is continuously extended to push the fixed arc-shaped plate, so as to tightly attach to the surface of the rotary table through the non-slip pad, since the fixed cylinder is installed on one side of the extension frame, the extension frame is connected to the rotary table, then the coil is energized, the magnetorheological fluid between the partition plate and the lower pressing annular frame has viscosity, the rotary table is started to rotate, the lower pressing annular frame is mobilized by the extension frame to rotate, the lower pressing annular frame can generate resistance when rotating through the setting of the magnetorheological fluid, the concentration of the magnetorheological fluid is controlled by the input current, thereby adjusting the resistance value, the state of the rotary table under the rotary resistance is detected by the torque sensor and the laser displacement sensor, when the rotation stability is detected in S, the connecting cylinder pushes the lower pressing annular frame to move downward, the extension frame and the suspension mechanism are connected through the limiting rack between the lower pressing annular frame and the partition plate, thereby ensuring the fixing effect, at the same time, the magnetic energy mechanism is connected to the current to generate a magnetic field, the electromagnet ring is adsorbed and fixed, thereby ensuring the fixing property of the suspension mechanism;

[0018] S4, when operating, the fixed cylinder pushing table edge detection mechanism is pre-arranged against the rotary table surface, then the cylinder is connected to extend and push the annular frame and extrude the magnetorheological fluid after current is passed, so as to be fixed, then the superconductor in the magnetic energy mechanism is connected to the current, and the liquid nitrogen in the dewar flask is pumped into the heat insulation sealed box through the vacuum heat insulation hose, so that the superconductor is in a low temperature environment, which ensures that the superconductor generates a stable magnetic field, then the direction of the current connected to the electromagnet ring is changed, so that repulsion is generated between the two, the suspended frame is suspended, and the side of the magnet one and the magnet two close to each other is of the same polarity, and also has a repulsive force, which further ensures the suspension effect of the suspended frame. Drive the rotary table to make the rotary table rotate with the extended frame and the suspension mechanism, simulate the working state of the rotary table with the machined parts, install the micrometer on the multipurpose mounting frame, and abut against the rotary table surface to check;

[0019] S5, when detecting, each detection component transmits the detected data to the controller, and the controller further transmits the data to the background. When operating detection, the door plate on one side of the frame can be closed, and the light supplementing lamp can be turned on for light supplementing, so as to facilitate observation.

[0020] In summary, the present application has the following beneficial technical effects:

[0021] Through the cooperation between the top surface test mechanism, the rotary table edge detection mechanism, the suspension mechanism in the annular fixed table and the magnetic energy mechanism, the rotary table can be tested for resistance, top surface flatness and eccentricity in the same device, without the need to transfer the rotary table to different detection fixtures and devices, greatly reducing the consumption of human resources, and effectively improving the detection efficiency of the rotary table. Through the cooperation of the clamping mechanism and the pushing cylinder, the rotary table of various models can be fixed. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the detection device of the high-speed precision rotary table;

[0023] Figure 2 It is a schematic diagram of the internal structure of the detection device of the high-speed precision rotary table;

[0024] Figure 3 It is a schematic diagram of the side section structure of the detection device of the high-speed precision rotary table;

[0025] Figure 4 It is Figure 3 It is a schematic diagram of the enlarged structure of part A;

[0026] Figure 5 It is Figure 3 It is a schematic diagram of the enlarged structure of part B;

[0027] Figure 6 Figure is a partial structure diagram of a detection device of a high-speed precision rotary table of the present application;

[0028] Figure 7 Figure is a structure diagram of a table edge detection mechanism of the detection device of the high-speed precision rotary table of the present application.

[0029] In the figure: 1, frame; 2, operation plate table; 3, bottom frame; 4, push air cylinder; 5, clamping mechanism; 51, shell seat; 52, extrusion air cylinder; 53, push plate; 54, clamping plate; 6, rotary table body; 7, annular fixed table; 81, suspension frame; 82, electromagnet ring; 83, magnet one; 84, magnet two; 71, connecting frame; 9, heat insulation sealed box; 10, superconductor; 11, vacuum heat insulation hose; 12, extension frame; 13, connecting air cylinder; 14, downward pressing annular frame; 15, coil; 16, partition plate; 17, Dewar flask; 18, fixed air cylinder; 19, table edge detection mechanism; 191, fixed arc plate; 192, torque sensor; 193, link plate; 194, elastic side plate; 195, rotating frame; 196, laser ranging sensor one; 197, anti-skid sleeve; 198, anti-skid pad; 20, top surface testing mechanism; 201, installation shell; 202, screw; 203, driven bevel gear; 204, moving plate; 205, laser displacement sensor; 206, rotating disc; 207, laser lamp; 208, driving bevel gear; 21, light supplement lamp; 22, controller; 23, multipurpose installation frame; 24, guide rod; 25, shock absorbing rubber pad; 111, valve. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying 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 those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Please refer to Figures 1-7The application provides a technical scheme that includes a frame 1, an operation plate table 2 connected to the inner side of the frame 1, a bottom frame 3 connected to the inner wall bottom end of the frame 1, a push air cylinder 4 connected to the inner side top end of the bottom frame 3, the output end of the push air cylinder 4 penetrating through the bottom frame 3 and being connected to a clamping mechanism 5, the top end of the clamping mechanism 5 being connected to a rotary table body 6, the top end of the operation plate table 2 being connected to an annular fixed table 7, a suspension mechanism being connected to the inner side of the annular fixed table 7, the top end of the suspension mechanism being connected to a connecting frame 71, the inner bottom end of the annular fixed table 7 being connected to a magnetic energy mechanism, an extension frame 12 being rotatably arranged on the inner side of the connecting frame 71, the inner side being connected to an air cylinder 13, the output end of the air cylinder 13 penetrating through the extension frame 12 and being connected to a lower pressing annular frame 14, a fixed air cylinder 18 being connected to one side of the extension frame 12, the output end of the fixed air cylinder 18 penetrating through the extension frame 12 and being connected to a table edge detection mechanism 19, a top surface testing mechanism 20 being connected to the inner wall top end of the frame 1, a controller 22 being connected to one side of the frame 1, a through hole being formed in the top end of the operation plate table 2 corresponding to the rotary table body 6, and a shock-absorbing rubber pad 25 being connected to the bottom end.

[0032] Referring to FIG. 1, Figure 2 and Figure 3 as shown, the inner wall top end of the frame 1 is connected to light supplement lamps 21 on both sides of the top surface testing mechanism 20, LED lamp tubes are adopted to supplement light in the equipment, and the light can penetrate through the equipment.

[0033] Referring to FIG. 1, Figure 4 as shown, the suspension mechanism includes a suspension frame 81 rotatably arranged in the annular fixed table 7 and a magnet two 84 fixedly arranged on the inner wall top end of the annular fixed table 7, the bottom end of the suspension frame 81 is connected to an electromagnet ring 82, and the top end of the suspension frame 81 is connected to a magnet one 83 on both sides.

[0034] The top end of the suspension frame 81 is provided with an installation groove, the inner bottom end of the installation groove is connected to a coil 15, the top surface of the coil 15 is connected to a partition plate 16, the lower pressing annular frame 14 is located at the top end of the installation groove, and the magnet one 83 and the magnet two 84 are connected to limit racks on the side close to each other, and the limit racks are filled with a magnetorheological fluid. The side of the coil 15 is connected to an external power supply, an electric current is generated after electrification, the magnetorheological fluid filled in the inside reduces fluidity and increases viscosity, the greater the electric current, the higher the viscosity, the partition plate 16 separates the magnetorheological fluid, and the limit racks on one side of the lower pressing annular frame 14 can effectively increase the friction between the magnetorheological fluid and the lower pressing annular frame 14 when rotating, and the lower pressing annular frame 14 can effectively limit the movement.

[0035] Referring to Figure 6 As shown in the drawings, the magnetic energy mechanism includes a heat insulation sealed box 9 fixedly arranged at the bottom end inside the annular fixed table 7, a superconductor 10 is connected and arranged in the heat insulation sealed box 9, the heat insulation sealed box 9 provides a relatively sealed environment for the superconductor 10, and has a heat preservation effect. The heat insulation sealed box 9 is connected with a vacuum heat insulation hose 11 on one side, the vacuum heat insulation hose 11 is connected with a Dewar flask 17 on the other side, the Dewar flask stores liquid nitrogen, and a valve 111 is connected to the end of the vacuum heat insulation hose 11 close to the Dewar flask 17. A liquid nitrogen pump is connected to the inside of the frame 1 on one side, and the end of the vacuum heat insulation hose 11 close to the Dewar flask 17 is connected to the liquid nitrogen pump. The liquid nitrogen pump is connected to the Dewar flask 17 through the liquid inlet end. As can be seen from the drawings, a gas inlet valve is connected to one side of the Dewar flask 17. Since it is a conventional arrangement, it is not described in detail in the specification and drawings. The liquid nitrogen in the Dewar flask 17 is pumped out through the vacuum heat insulation hose 11 and discharged into the heat insulation sealed box 9 by the liquid nitrogen pump, thereby providing a low-temperature environment for the superconductor 10, so as to maintain the use effect of the superconductor 10.

[0036] Referring to the drawings Figure 3 As shown in the drawings, the clamping mechanism 5 includes a shell seat 51, two groups of extrusion cylinders 52 are connected and arranged on one side of the inner wall of the shell seat 51, a pushing plate 53 is connected and arranged at the output end of each extrusion cylinder 52, a clamping plate 54 is connected and arranged at the top end of the pushing plate 53, a guide hole is formed in the top end of the shell seat 51 corresponding to the clamping plate 54, and the turntable body 6 is connected and arranged between the clamping plates 54. A guide rod 24 is connected and arranged at the bottom end of the shell seat 51, and the bottom end of the guide rod 24 is slidingly connected with the bottom frame 3. As can be seen from the drawings, a plate member for mounting and fixing the extrusion cylinders 52 is connected and arranged in the shell seat 51, and the shell seat 51 is fixedly arranged on one side of the plate member. The output end penetrates through the plate member and is connected with the pushing plate 53. When the shell seat 51 extends or contracts, the pushing plate 53 can drive the clamping plate 54 to slide. The above is a common fixing mechanism, which is used to clamp and fix the turntable body 6 in this application. The two extrusion cylinders 52 are independently controlled.

[0037] Referring to Figure 5As shown, the top surface testing mechanism 20 comprises a mounting shell 201 fixedly arranged at the top end of the inner wall of the frame 1, three groups of screw rods 202 are rotatably arranged inside the mounting shell 201, the ends of the screw rods 202 close to each other are all connected with driven bevel gears 203, the ends of the screw rods 202 are threadedly connected with moving plates 204, one side of the moving plates 204 penetrates through the mounting shell 201 and is connected with a laser displacement sensor 205, a rotating disc 206 is rotatably arranged at the bottom end of the mounting shell 201 through a circular shaft, the top end of the circular shaft extends into the mounting shell 201 and is connected with a driving bevel gear 208, the driving bevel gear 208 is engaged with each driven bevel gear 203, the rotating disc 206 is manually rotated, thereby driving each screw rod 202 to synchronously rotate through the engagement between the driving bevel gear 208 and the driven bevel gear 203, thereby adjusting the synchronous displacement of the moving plates 204, moving the laser displacement sensor 205 below, suitable for detecting rotary tables of different sizes, a laser lamp 207 is connected at the bottom end of the rotating disc 206, when the rotary table body 6 is placed on the top ring of the clamping mechanism 5, the laser lamp 207 will project a light beam on the center position of the clamping mechanism 5, the center position can be quickly determined through the irradiation position of the light beam, thereby being more convenient for manually adjusting when placing the rotary table body 6, and making the rotary table and the through hole on the operation plate table 2 further aligned.

[0038] Referring to Figure 7As shown, the table edge detection mechanism 19 includes a fixed arc-shaped plate 191 fixedly arranged at the output end of the fixed cylinder 18, one side of the fixed arc-shaped plate 191 is connected with a torque sensor 192, the other side of the torque sensor 192 is connected with an adapter plate 193, when the adapter plate 193 is tightly attached to the rotary table body 6 through the anti-skid pad 198 arranged on one side, the torque sensor 192 can detect the torque between the adapter plate 193 and the fixed arc-shaped plate 191 when the rotary table body 6 rotates, the elastic side plates 194 are connected on both sides of the adapter plate 193, the rotating frames 195 are rotatably arranged on the sides away from each other of the elastic side plates 194, the high-precision bearings are connected on both sides of the elastic side plates 194 corresponding to the rotating frames 195, so as to facilitate the rotation of the rotating frames 195, the laser ranging sensors 196 are connected on both sides of the fixed arc-shaped plate 191 corresponding to the rotating frames 195, as can be seen from the drawings, the rotating frame 195 is arranged in a I-shaped manner, the anti-skid sleeves 197 are sleeved and connected at both ends of the rotating frame 195, which can increase the friction between the rotating frame 195 and the rotary table body 6, so that the rotating frame 195 can better rotate, and at the same time, the anti-skid sleeves 197 have a protection effect, when the rotary table body 6 rotates, once eccentricity or irregular shape occurs, the rotating frame 195 on one side will be pressed, so that the elastic side plates 194 will shake, the laser ranging sensor 196 detects the middle end position of the rotating frame 195, in the case of no eccentricity or regular shape, the monitoring data will not change, the elastic side plates 194 and the adapter plate 193 as a whole can be made of spring steel material, as can be seen from the drawings, the adjacent edges of the adapter plate 193 and the elastic side plates 194 are provided with grooves for reducing the thickness and ensuring elasticity.

[0039] A detection method of a detection device of a high-speed precision rotary table, comprising the following steps:

[0040] S1, the light beam projected by the laser lamp 207 on the top end of the clamping mechanism 5 is used as a position mark, the rotary table body 6 to be detected is placed on the top end of the clamping mechanism 5, the extrusion cylinder 52 is driven to contract, the push plate 53 is driven to slide along the guide hole, so that the rotary table body 6 is simply fixed by the clamping plate 54, then the push cylinder 4 is driven to lift the clamping mechanism 5 upward, so that the rotary table on the top end of the rotary table body 6 passes through the through hole on the rotary table operation plate 2 and is located inside the annular fixed table 7, at the same time, the shell of the rotary table body 6 abuts against one side of the shock-absorbing rubber pad 25, the positioning stability of the rotary table body 6 is maintained, and then the rotary table body 6 is externally connected with an external power supply;

[0041] S2, the fixed cylinder 18 is started to push the platform edge detection mechanism 19, the rotating frame 195 is attached to the rotary table surface through the anti-skid sleeve 197, the rotating disc 206 is rotated, the screw rod 202 is driven through the meshing of the driving bevel gear 208 and each driven bevel gear 203, so that the moving plate 204 is moved, the monitoring position of the laser displacement sensor 205 to the rotary table surface is adjusted, the monitoring point falls on the top end of the rotary table body 6, the rotary table body 6 is started to rotate, the elastic side plate 194 has a certain elasticity, when the rotating rotary table body 6 is unstable, the rotating frame 195 will shake, the laser ranging sensor 196 will monitor the position relationship of the rotating frame 195 in real time, the rotary table is detected from the top surface and the side surface of the rotary table;

[0042] S3, the fixed cylinder 18 is continuously extended to push the fixed arc-shaped plate 191, so that the anti-skid pad 198 is tightly attached to the rotary table surface, since the fixed cylinder 18 is installed on one side of the extension frame 12, the extension frame 12 is connected with the rotary table, then the coil 15 is energized, the magnetorheological fluid between the partition plate 16 and the lower pressing ring-shaped frame 14 becomes viscous, the rotary table is started to rotate, the lower pressing ring-shaped frame 14 is mobilized to rotate through the extension frame 12, the lower pressing ring-shaped frame 14 can generate resistance when rotating through the setting of the magnetorheological fluid, the concentration of the magnetorheological fluid is controlled through the input current, so as to adjust the resistance value, the state of the rotary table under the rotary resistance is detected through the torque sensor 192 and the laser displacement sensor 205, when the rotary stability detection in S2 is performed, the connecting cylinder 13 pushes the lower pressing ring-shaped frame 14 to move downward, the extension frame 12 and the suspension mechanism are connected through the limiting rack between the lower pressing ring-shaped frame 14 and the partition plate 16, the fixing effect is ensured, at the same time, the magnetic energy mechanism accesses the current to generate a magnetic field, the electromagnet ring 82 is adsorbed and fixed, the fixing effect of the suspension mechanism is ensured;

[0043] S4, during operation, the fixed cylinder 18 pushes the platform edge detection mechanism 19 against the rotary table surface in advance, then the connecting cylinder 13 extends to push the lower pressing ring-shaped frame 14 and extrudes the magnetorheological fluid after the current is input, so as to be fixed, then the superconductor 10 in the magnetic energy mechanism accesses the current, at the same time, the liquid nitrogen in the Dewar flask 17 is pumped into the heat insulation sealed box 9 through the vacuum heat insulation hose 11, so that the superconductor 10 is in a low-temperature environment, the stable magnetic field generated by the superconductor 10 is ensured, then the direction of the current accessing the electromagnet ring 82 is changed, repulsion is generated between the two, the suspension frame 81 is suspended, at the same time of suspension, the side of the magnet one 83 and the magnet two 84 close to each other is of the same polarity, also has a repulsive force, further ensures the suspension effect of the suspension frame 81, the rotary table is driven to rotate, the rotary table rotates with the extension frame 12 and the suspension mechanism, the working state of the rotary table with the machining parts is simulated, the micrometer is installed on the multipurpose mounting frame 23 and abuts against the rotary table surface, and the inspection is performed;

[0044] S5, each detection component transmits the detected data to the controller 22, and the data is further transmitted to the background by the controller 22. During operation detection, the door plate on one side of the frame 1 can be closed, and the light supplement lamp 21 can be turned on for light supplement, so as to facilitate observation.

[0045] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, alternatives, and variations can be made in the embodiments without departing from the spirit and scope of the present application as defined by the appended claims and their equivalents.

Claims

1. A detection device for a high-speed precision rotary table, comprising a frame (1), characterized in that: An operating platform (2) is connected to the inner side of the frame (1). A base frame (3) is connected to the bottom of the inner wall of the frame (1). A push cylinder (4) is connected to the top of the inner side of the base frame (3). The output end of the push cylinder (4) passes through the base frame (3) and is connected to a clamping mechanism (5). A turntable body (6) is connected to the top of the clamping mechanism (5). A ring-shaped fixed platform (7) is connected to the top of the operating platform (2). A suspension mechanism is connected inside the ring-shaped fixed platform (7). A connecting frame (71) is connected to the top of the suspension mechanism. A magnetic energy mechanism is connected to the bottom of the inside of the ring-shaped fixed platform (7). A rotating mechanism is installed inside the connecting frame (71). An extension frame (12) is provided, and a connecting cylinder (13) is connected to the inner side of the extension frame (12). The output end of the connecting cylinder (13) passes through the extension frame (12) and is connected to a pressing ring frame (14). A fixing cylinder (18) is connected to one side of the extension frame (12). The output end of the fixing cylinder (18) passes through the extension frame (12) and is connected to a table edge detection mechanism (19). A top surface testing mechanism (20) is connected to the top of the inner wall of the frame (1). A controller (22) is connected to one side of the frame (1). A through hole is opened at the top of the operating panel (2) corresponding to the turntable body (6), and a shock-absorbing rubber pad (25) is connected to the bottom. The suspension mechanism includes a suspension frame (81) rotatably disposed in an annular fixed platform (7) and a second magnet (84) fixedly disposed at the top of the inner wall of the annular fixed platform (7). An electromagnet ring (82) is connected to the bottom end of the suspension frame (81), and a first magnet (83) is connected to both sides of the top end of the suspension frame (81). The magnetic energy mechanism includes a heat-insulating and sealed box (9) fixedly installed at the bottom of the annular fixed platform (7). A superconductor (10) is connected inside the heat-insulating and sealed box (9). A vacuum heat-insulating hose (11) is connected to one side of the heat-insulating and sealed box (9). A Dewar flask (17) is connected to the other side of the vacuum heat-insulating hose (11). A valve (111) is connected to one end of the vacuum heat-insulating hose (11) near the Dewar flask (17).

2. The detection device for a high-speed precision rotary table according to claim 1, characterized in that: The top of the inner wall of the frame (1) is connected to the two sides of the top surface test mechanism (20) with supplementary lights (21), and the two sides of the inner wall of the frame (1) are connected to multi-purpose mounting brackets (23).

3. The detection device for a high-speed precision rotary table according to claim 2, characterized in that: The top of the suspension frame (81) is provided with an installation groove, and a coil (15) is connected to the bottom of the inner side of the installation groove. A partition (16) is connected to the top surface of the coil (15). The pressing ring frame (14) is located at the top of the installation groove. Limiting racks are connected to the sides of the pressing ring frame (14) and the partition (16) that are close to each other, and magnetorheological fluid is filled between them.

4. The detection device for a high-speed precision rotary table according to claim 3, characterized in that: The clamping mechanism (5) includes a housing base (51). Two sets of extrusion cylinders (52) are connected to one side of the inner wall of the housing base (51). Each extrusion cylinder (52) has a push plate (53) connected to its output end. A clamping plate (54) is connected to the top of the push plate (53). A guide hole is opened at the top of the housing base (51) corresponding to the clamping plate (54). The turntable body (6) is connected between the clamping plates (54). A guide rod (24) is connected to the bottom of the housing base (51). The bottom of the guide rod (24) is slidably connected to the base frame (3).

5. The detection device for a high-speed precision rotary table according to claim 4, characterized in that: The top surface testing mechanism (20) includes a mounting housing (201) fixedly installed at the top of the inner wall of the frame (1). Three sets of screws (202) are rotatably installed inside the mounting housing (201). Each screw (202) is connected to a driven bevel gear (203) at one end close to each other. A moving plate (204) is threaded to one end of the screw (202). One side of the moving plate (204) penetrates the mounting housing (201) and is connected to a laser displacement sensor (205). A rotating disk (206) is rotatably installed at the bottom of the mounting housing (201) via a round shaft. The top end of the round shaft extends into the mounting housing (201) and is connected to an active bevel gear (208). The active bevel gear (208) meshes with each driven bevel gear (203). A laser lamp (207) is connected to the bottom of the rotating disk (206).

6. The detection device for a high-speed precision rotary table according to claim 5, characterized in that: The platform edge detection mechanism (19) includes a fixed arc plate (191) fixedly installed at the output end of a fixed cylinder (18). A torque sensor (192) is connected to one side of the fixed arc plate (191), and a connecting plate (193) is connected to the other side of the torque sensor (192). Elastic side plates (194) are connected to both sides of the connecting plate (193). A rotating frame (195) is rotatably installed on the side of the elastic side plates (194) that are far apart from each other. A laser rangefinder sensor (196) is connected to both sides of the fixed arc plate (191) corresponding to the rotating frame (195).

7. The detection device for a high-speed precision rotary table according to claim 6, characterized in that: An anti-slip pad (198) is connected to one side of the connecting plate (193), and an anti-slip sleeve (197) is fitted to one side of the rotating frame (195).

8. The detection method of the detection device for a high-speed precision rotary table according to claim 7, characterized in that, Includes the following steps: S1. Using the laser beam projected onto the top of the clamping mechanism (5) by the laser lamp (207) as a position mark, place the turntable body (6) to be tested on the top of the clamping mechanism (5), drive the extrusion cylinder (52) to contract and drive the push plate (53) to slide along the guide hole, thereby using the clamping plate (54) to simply fix the turntable body (6), and then push the cylinder (4) to lift the clamping mechanism (5) upward, so that the turntable at the top of the turntable body (6) passes through the through hole on the operating plate (2) and is located inside the annular fixed platform (7). At the same time, the shell of the turntable body (6) will abut against the side of the shock-absorbing rubber pad (25) to maintain the stable positioning effect of the turntable body (6), and then connect the turntable body (6) to an external power source. S2. Start the fixed cylinder (18) to push the edge detection mechanism (19), so that the rotating frame (195) is attached to the surface of the turntable through the anti-slip sleeve (197). Rotate the rotating disk (206), and drive the screw (202) through the meshing of the active bevel gear (208) and each driven bevel gear (203), thereby driving the moving plate (204) to move. Adjust the monitoring position of the laser displacement sensor (205) on the surface of the turntable so that its monitoring point falls on the top of the turntable body (6). Start the rotation of the turntable body (6). The elastic side plate (194) has a certain elasticity. When the rotating turntable body (6) is unstable, the rotating frame (195) will shake. The laser range sensor (196) will monitor the position relationship of the rotating frame (195) in real time and detect the rotation stability of the turntable from the top and side surfaces of the turntable. S3. The fixed cylinder (18) continues to extend and push the fixed arc plate (191), thereby tightly adhering to the turntable surface through the anti-slip pad (198). Since the fixed cylinder (18) is installed on one side of the extension frame (12), it is convenient to indirectly connect the extension frame (12) to the turntable. Then, the coil (15) is energized, so that the magnetorheological fluid between the partition plate (16) and the lower ring frame (14) becomes viscous, and the turntable is started to rotate. The lower ring frame (14) is rotated by the extension frame (12). When the lower ring frame (14) rotates, it can generate resistance through the setting of the magnetorheological fluid. The concentration of the magnetorheological fluid is controlled by the input current, thereby adjusting the resistance value. The state of the turntable under rotational resistance is detected by the torque sensor (192) and the laser displacement sensor (205). When performing rotational stability detection in S2, the connecting cylinder (13) pushes the lowering ring frame (14) to move down. The limiting rack between the lowering ring frame (14) and the partition (16) restricts the extension frame (12) and the suspension mechanism to ensure the fixing effect. At the same time, the magnetic energy mechanism generates a magnetic field by connecting the current, which adsorbs and fixes the electromagnet ring (82) to ensure the fixation of the suspension mechanism. S4. During operation, the fixed cylinder (18) is first pushed to the edge detection mechanism (19) against the surface of the turntable. Then, the connecting cylinder (13) extends to push the lower ring frame (14) and squeezes it against the magnetorheological fluid after the current is applied, thereby fixing it. Then, the superconductor (10) in the magnetic energy mechanism is connected to the current. At the same time, the liquid nitrogen in the Dewar flask (17) is pumped into the heat-insulated sealed box (9) through the vacuum heat-insulating hose (11) to make the superconductor (10) a low-temperature environment, ensuring that the superconductor (10) generates a stable magnetic field. Then, the current is changed. The direction of the current connected to the electromagnet ring (82) causes a repulsive force between the two, which makes the suspension frame (81) levitate. At the same time, the magnets 1 (83) and 2 (84) are on the same pole on the side that are close to each other, and also have a repulsive force, which further ensures the levitation effect of the suspension frame (81). The turntable is driven to rotate with the extension frame (12) and the suspension mechanism, simulating the working state of the turntable with the processed parts. A dial indicator is installed on the multi-purpose mounting bracket (23) and pressed against the surface of the turntable for inspection. S5. During the detection, each detection component transmits the detected data to the controller (22). The controller (22) then transmits the data to the background. During the operation and detection, the door panel on one side of the frame (1) can be closed, and the supplementary light (21) can be turned on for supplementary lighting to facilitate observation.

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