Numerical control machine tool spindle loading device

Abstract

The invention discloses a numerical control machine tool spindle loading device, and relates to the technical field of numerical control machine tool performance test.The numerical control machine tool spindle loading device comprises a shell, a mounting assembly, a loading assembly and a detection assembly, a box door is hinged to the outer surface of the shell, and a display screen is fixedly connected to the top of the shell; and the mounting assembly is fixedly connected to the top of the shell and comprises a mounting frame, a first electric telescopic rod is fixedly connected to the inner top of the mounting frame, a displacement frame is fixedly connected to the lower end face of the first electric telescopic rod, and a driving seat is fixedly connected to the outer surface of the displacement frame. According to the invention, through cooperative operation of the second electric telescopic rod and the first motor, the loading block can be driven to carry out multi-angle loading on the main shaft body, and free angle adjustment can be carried out on the loading state in the detection process, so that loading simulation of various actual processing stress conditions of the main shaft body can be satisfied; and the accuracy of the performance detection result of the main shaft body is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of performance testing of numerically controlled machine tools, in particular to a spindle loading device for numerically controlled machine tools. Background Art

[0002] The spindle is the main component of a CNC machine tool. The quality of the spindle's dynamic performance is the main factor affecting the machine tool's working performance, especially the workpiece processing quality and production efficiency. The spindle loading test under simulated working conditions is an important means to reflect the performance indicators of the spindle components.

[0003] In the prior art, when performing a performance test on a CNC machine tool spindle under a loading state, a traditional loading device usually pushes horizontally on the side of the spindle to radially load the spindle to simulate a machining state. However, a single loading angle cannot effectively simulate the complex machining state of a CNC machine tool, resulting in an incomplete test result and poor accuracy.

[0004] Therefore, a spindle loading device for a CNC machine tool is proposed to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a CNC machine tool spindle loading device to solve the problem that the single loading angle proposed in the above background technology cannot effectively simulate the complex processing state of the CNC machine tool, resulting in incomplete detection results and poor accuracy.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a spindle loading device for a CNC machine tool comprises a shell, a mounting assembly, a loading assembly and a detection assembly, wherein a box door is hinged on the outer surface of the shell, and a display screen is fixedly connected to the top of the shell; the mounting assembly is fixedly connected to the top of the shell, the mounting assembly comprises a mounting frame, a first electric telescopic rod is fixedly connected to the top of the mounting frame, a displacement frame is fixedly connected to the lower end surface of the first electric telescopic rod, a driving seat is fixedly connected to the outer surface of the displacement frame, and a spindle body is fixedly installed on the output end of the driving seat; the loading assembly is fixedly connected to the inner surface of the shell, the loading assembly comprises a side frame, a second electric telescopic rod is fixedly connected to the inner surface of the side frame, and a push plate is fixedly connected to the end surface of the second electric telescopic rod; the detection assembly is fixedly connected to the inner surface of the shell, the detection assembly comprises two supports, a circular plate is fixedly connected to the outer surface of the support, and a plurality of slide rails are evenly fixedly connected to the bottom of the circular plate.

[0007] Preferably, a through hole is opened on the top of the shell, the main shaft body is located above the shell, the main shaft body matches the position of the through hole, and the center of the main shaft body is consistent with that of the circular plate.

[0008] Preferably, a bracket is fixedly connected to the bottom inner side of the side frame, a support shaft is symmetrically rotatably connected to the inner surface of the bracket, a first motor is fixedly connected to the outer surface of the bracket, an output end of the first motor passes through the bracket and extends to the inner side, the output end of the first motor is fixedly connected to one of the support shafts, and a rotating block is fixedly connected between the end faces of the two support shafts.

[0009] Preferably, a socket is provided on the outer surface of the rotating block, a sliding rod is slidably connected to the inner surface of the socket, an arc block is fixedly connected to the end surface of the sliding rod close to the push plate, and the arc block matches the position of the push plate.

[0010] Preferably, a loading block is fixedly connected to the end face on the other side of the sliding rod, the inner surface of the loading block is arc-shaped, the loading block matches the position of the main shaft body, a plurality of circular holes are evenly opened on the inner surface of the loading block, and balls are movably connected inside the plurality of circular holes, a first spring is symmetrically fixedly connected to the outer surface of the loading block close to the rotating block, the first spring is located outside the sliding rod, and the end face of the first spring is fixedly connected to the outer surface of the rotating block.

[0011] Preferably, a plane bearing is fixedly connected to the top of the circular plate, the plane bearing is located near the edge of the top of the circular plate, and a gear ring is fixedly connected to the top of the plane bearing.

[0012] Preferably, a second motor is fixedly connected to the bottom of the circular plate located on the lower side, and the output end of the second motor passes through the circular plate and extends to the upper side. The output end of the second motor is fixedly connected to a rotating shaft, and the rotating shaft slides through another circular plate and extends to the upper side. Two gears are fixedly connected to the outer surface of the rotating shaft, and the two gears are respectively in meshing state with two gear rings.

[0013] Preferably, a plurality of linkage frames are evenly and fixedly connected to the top of the gear ring, a rotating ring is fixedly connected between the bottoms of the plurality of linkage frames, the rotating ring is located at the lower side of the circular plate, a plurality of guide blocks are evenly and fixedly connected to the inner surface of the rotating ring, the number of the guide blocks is consistent with that of the slide rails and the spacing angles are consistent.

[0014] Preferably, the outer surface of the slide rail is slidably connected to a slider, the bottom of the slider is fixedly connected to a connecting seat, the bottom of the connecting seat is fixedly connected to a beating meter, a probe is provided at the output end of the beating meter, the probe cooperates with the position of the main shaft body, the outer surface of the connecting seat away from the beating meter is fixedly connected to a support seat, the inner surface of the support seat is rotatably connected to a roller, the outer surface of the roller is in contact with the inner surface of the rotating ring, the roller cooperates with the position of the guide block, and the beating meter is electrically connected to the display screen.

[0015] Preferably, a baffle is fixedly connected to the outer surface of the slide rail away from the roller, a second spring is fixedly connected to the outer surface of the baffle plate close to the connecting seat, and an end surface of the second spring is fixedly connected to the inner surface of the connecting seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, when the spindle loading device of a numerically controlled machine tool is used, the spindle body is radially loaded by setting a loading component to simulate the stress state of the spindle body when connected to the numerically controlled machine tool for processing. The inclination angle of the rotating block can be adjusted by the operation of the first motor, and the sliding rod will be displaced along the slot in the inclined state, that is, the sliding rod can drive the loading block to load an oblique force on the spindle body. The coordinated operation of the second electric telescopic rod and the first motor can drive the loading block to load the spindle body at multiple angles, and the angle of the loading state can be freely adjusted during the detection process to meet the loading simulation of various actual processing stress conditions of the spindle body, thereby effectively improving the accuracy of the spindle body performance detection results.

[0018] 2. In the present invention, by synchronously driving the displacement of multiple rollers through the rotation of the guide block, the multiple rollers are synchronously displaced, which can ensure that the displacement amplitudes of multiple beating instruments are consistent, thereby ensuring that the multiple beating instruments are accurately displaced to a state of fitting the surface of the main shaft body, thereby improving the accuracy of the detection results.

[0019] 3. In the present invention, the second motor is used to synchronously drive the two gear rings to operate. The single-drive setting is more energy-saving and can ensure the synchronous displacement of the upper and lower beating meters, thereby improving the accuracy of the detection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of a spindle loading device for a CNC machine tool according to the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of a shell of a spindle loading device for a CNC machine tool according to the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of an installation component of a spindle loading device for a CNC machine tool according to the present invention;

[0023] Figure 4 It is a schematic diagram of a partial structural combination of a spindle loading device for a CNC machine tool according to the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of a loading component of a spindle loading device for a CNC machine tool according to the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of a detection component of a spindle loading device for a CNC machine tool according to the present invention;

[0026] Figure 7 This is a schematic diagram of the bottom structure of a circular plate of a spindle loading device for a CNC machine tool according to the present invention;

[0027] Figure 8 The present invention is a schematic diagram of the structure of a runout meter of a spindle loading device of a CNC machine tool.

[0028] In the figure: 1, housing; 2, mounting assembly; 201, mounting frame; 202, first electric telescopic rod; 203, displacement frame; 204, driving seat; 205, main shaft body; 3, loading assembly; 301, side frame; 302, second electric telescopic rod; 303, push plate; 304, bracket; 305, first motor; 306, support shaft; 307, rotating block; 308, sliding rod; 309, arc block; 310, loading block; 311, ball; 312, first spring ; 4. Detection component; 401. Support; 402. Round plate; 403. Plane bearing; 404. Gear ring; 405. Linkage frame; 406. Rotating ring; 407. Guide block; 408. Second motor; 409. Rotating shaft; 410. Gear; 411. Slide rail; 412. Slider; 413. Connecting seat; 414. Vibration meter; 415. Probe; 416. Support seat; 417. Roller; 418. Baffle; 419. Second spring; 5. Box door; 6. Display screen. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1-Figure 8As shown, the present invention provides a technical solution: a CNC machine tool spindle loading device, including a shell 1, a mounting assembly 2, a loading assembly 3 and a detection assembly 4, the outer surface of the shell 1 is hinged with a box door 5, and the top of the shell 1 is fixedly connected to a display screen 6; the mounting assembly 2 is fixedly connected to the top of the shell 1, and the mounting assembly 2 includes a mounting frame 201, the top of the mounting frame 201 is fixedly connected to a first electric telescopic rod 202, the lower end surface of the first electric telescopic rod 202 is fixedly connected to a displacement frame 203, the outer surface of the displacement frame 203 is fixedly connected to a drive seat 204, and the output end of the drive seat 204 is fixedly installed with a spindle body 205; the loading assembly 3 is fixedly connected to the inner surface of the shell 1, and the loading assembly 3 includes a side frame 301, and the inner surface of the side frame 301 is fixedly connected There is a second electric telescopic rod 302, and the end surface of the second electric telescopic rod 302 is fixedly connected to a push plate 303; the detection component 4 is fixedly connected to the inner surface of the shell 1, and the detection component 4 includes two supports 401, and the outer surface of the support 401 is fixedly connected to a circular plate 402, and the bottom of the circular plate 402 is evenly fixedly connected to a plurality of slide rails 411, and a through hole is opened at the top of the shell 1, and the spindle body 205 is located above the shell 1, and the spindle body 205 matches the position of the through hole, and the spindle body 205 is consistent with the center of the circular plate 402, and the bottom of the side frame 301 is fixedly connected to a bracket 304, and the inner surface of the bracket 304 is symmetrically rotated and connected to a support shaft 306, and the outer surface of the bracket 304 is fixedly connected to a first motor 305, and the output end of the first motor 305 passes through The bracket 304 extends to the inner side, the output end of the first motor 305 is fixedly connected to one of the support shafts 306, a rotating block 307 is fixedly connected between the end faces of the two support shafts 306, the outer surface of the rotating block 307 is provided with a socket, and a sliding rod 308 is slidably connected to the inner surface of the socket, and an arc block 309 is fixedly connected to the end face of the sliding rod 308 close to the push plate 303, and the arc block 309 matches the position of the push plate 303, and a loading block 310 is fixedly connected to the end face of the other side of the sliding rod 308, and the inner surface of the loading block 310 is arc-shaped, and the loading block 310 matches the position of the spindle body 205. A plurality of circular holes are evenly provided on the inner surface of the loading block 310, and balls 311 are movably connected inside the plurality of circular holes. The loading block 310 is close to the rotating block A first spring 312 is symmetrically fixedly connected to the outer surface of one side of 307, and the first spring 312 is located at the outer side of the sliding rod 308. The end face of the first spring 312 is fixedly connected to the outer surface of the rotating block 307. A plane bearing 403 is fixedly connected to the top of the circular plate 402. The plane bearing 403 is located near the edge of the top of the circular plate 402. A gear ring 404 is fixedly connected to the top of the plane bearing 403. A second motor 408 is fixedly connected to the bottom of the circular plate 402 located at the lower side. The output end of the second motor 408 penetrates the circular plate 402 and extends to the upper side. A rotating shaft 409 is fixedly connected to the output end of the second motor 408. The rotating shaft 409 slides through another circular plate 402 and extends to the upper side. Two gears 410 are fixedly connected to the outer surface of the rotating shaft 409.The two gears 410 are in meshing state with the two gear rings 404 respectively. The top of the gear ring 404 is evenly fixedly connected with a plurality of linkage frames 405. A rotating ring 406 is fixedly connected between the bottoms of the plurality of linkage frames 405. The rotating ring 406 is located at the lower side of the circular plate 402. The inner surface of the rotating ring 406 is evenly fixedly connected with a plurality of guide blocks 407. The number of guide blocks 407 and the interval angle of the guide blocks 407 are consistent with those of the slide rail 411. The outer surface of the slide rail 411 is slidably connected with a slider 412. The bottom of the slider 412 is fixedly connected with a connecting seat 413. The bottom of the connecting seat 413 is fixedly connected with a runout meter 414. The output end of the runout meter 414 is provided with a probe 4 15. The position of the probe 415 matches the position of the main shaft body 205. The outer surface of the connecting seat 413 away from the beating meter 414 is fixedly connected to the support seat 416. The inner surface of the support seat 416 is rotatably connected to the roller 417. The outer surface of the roller 417 fits the inner surface of the rotating ring 406. The roller 417 matches the position of the guide block 407. The beating meter 414 is electrically connected to the display screen 6. The outer surface of the slide rail 411 away from the roller 417 is fixedly connected to the baffle 418. The outer surface of the baffle 418 close to the connecting seat 413 is fixedly connected to the second spring 419. The end surface of the second spring 419 is fixedly connected to the inner surface of the connecting seat 413.

[0031] The use steps of the present invention are as follows: when the spindle loading device of a CNC machine tool is used, after the spindle body 205 is installed and fixed with the driving seat 204, the first electric telescopic rod 202 is started to extend to drive the displacement frame 203 to move downward. At this time, the spindle body 205 can enter the interior of the housing 1 through the through hole, and the second motor 408 is operated to drive the rotating shaft 409 to rotate. The rotation of the rotating shaft 409 can drive the two gears 410 to rotate. When the two gears 410 rotate, they can synchronously drive the two gear rings 404 to rotate. The rotation of the gear ring 404 drives the linkage frame 405 and the rotating ring 406 to rotate. When the rotating ring 406 rotates, it can drive the guide block 407 to rotate. The guide block 417 moves toward the roller 4 When the 17th position is rotated, the inclined surface of the guide block 417 will press the roller 417. After being pressed, the roller 417 will drive the beating meter 414 to move toward the main shaft body 205 through the connection between the support seat 416 and the connecting seat 413. At this time, the beating meter 414 moves, so that the probe 415 and the surface of the main shaft body 205 are in a fitting state. At this time, the driving seat 204 is started to drive the main shaft body 205 to rotate at a high speed. When the probe 415 is under pressure, the data of the beating meter 414 will change. The detection data of multiple beating meters 414 can be displayed at the display screen 6. While the main shaft body 205 rotates for stability detection, the main shaft body 205 is radially loaded by the setting of the loading component 3 to simulate the main shaft body 205. 05In the state of stress during CNC machine processing, an accurate test result of the stability of the spindle body 205 is obtained. Starting the extension of the second electric telescopic rod 302 can drive the push plate 303 to move in the direction of the arc block 309, and can push the sliding rod 308 and the loading block 310 to move toward the spindle body 205. When the arc block 309 is pressed to drive the sliding rod 308 and the loading block 310 to move, the sliding rod 308 will move along the socket, that is, the displacement trajectory of the sliding rod 308 is limited by the matching setting of the rotating block 307 and the socket. When the rotating block 307 is in a horizontal state, the direction of the socket is also in a horizontal state, so the sliding rod 308 will move horizontally to drive the loading block 310 to press against the surface of the spindle body 205, and the loading block 310 will move horizontally. When pressed against the surface of the spindle body 205, the surface of the spindle body 205 is radially loaded to achieve the purpose of simulating the processing state. After completing one loading, the second electric telescopic rod 302 shrinks and resets. At this time, the arc block 309 is separated from the support, and the rebound force of the first spring 312 is used to drive the loading block 310 to reset. Then, the loading angle of the loading block 310 is adjusted by the operation of the first motor 305. After the operation of the first motor 305, the support shaft 306 can be driven to rotate. The rotation of the support shaft 306 can drive the rotating block 307 to rotate for angle adjustment. After the rotating block 307 completes the angle adjustment and is in a tilted state, the second electric telescopic rod 302 is continued to be started to extend. When the push plate 303 applies pressure to the arc block 309,The arc block 309 will drive the sliding rod 308 to move along the jack. At this time, since the rotating block 307 is in an inclined state, the sliding rod 308 will move along the slot in the inclined state, that is, the sliding rod 308 can drive the loading block 310 to load an oblique force on the spindle body 205. After completing the oblique force loading at one angle, the second electric telescopic rod 302 contracts to drive the arc block 309 to contract and reset, and the first motor 305 is continued to be started to adjust the angle of the rotating block 307. The second electric telescopic rod 302 continues to extend and run, and the angle can be changed to load the oblique force on the spindle body 205. Through the coordinated operation of the second electric telescopic rod 302 and the first motor 305, the loading block 310 can be driven to load the spindle body 205 at multiple angles, and the angle of the loading state can be freely adjusted during the detection process to meet the loading simulation of various actual processing stress conditions of the spindle body 205, effectively improving the accuracy of the performance detection results of the spindle body 205.

[0032] Embodiment 2: Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, a plurality of linkage frames 405 are evenly fixedly connected to the top of the gear ring 404, a rotating ring 406 is fixedly connected between the bottoms of the plurality of linkage frames 405, the rotating ring 406 is located at the lower side of the circular plate 402, a plurality of guide blocks 407 are evenly fixedly connected to the inner surface of the rotating ring 406, the number of guide blocks 407 and the interval angle of the guide blocks 407 are consistent with those of the slide rail 411, a slider 412 is slidably connected to the outer surface of the slide rail 411, a connecting seat 413 is fixedly connected to the bottom of the slider 412, a beating meter 414 is fixedly connected to the bottom of the connecting seat 413, a probe 415 is provided at the output end of the beating meter 414, the position of the probe 415 is matched with the position of the spindle body 205, a supporting seat 416 is fixedly connected to the outer surface of the connecting seat 413 away from the beating meter 414, a roller 417 is rotatably connected to the inner surface of the supporting seat 416, the outer surface of the roller 417 is in contact with the inner surface of the rotating ring 406, and the position of the roller 417 is matched with that of the guide block 407.

[0033] The use steps of the present invention are to guide the rotation of the guide block 407 to synchronously drive the displacement of multiple rollers 417. The synchronous displacement of multiple rollers 417 can ensure that the displacement amplitudes of multiple beating meters 414 are consistent, thereby ensuring that multiple beating meters 414 are accurately displaced to a state of fitting the surface of the main shaft body 205, thereby improving the accuracy of the detection results.

[0034] Embodiment 3: Figure 4 and Figure 6As shown, the output end of the second motor 408 passes through the circular plate 402 and extends to the upper side. The output end of the second motor 408 is fixedly connected to a rotating shaft 409. The rotating shaft 409 slides through another circular plate 402 and extends to the upper side. Two gears 410 are fixedly connected to the outer surface of the rotating shaft 409.

[0035] The present invention uses steps to synchronously drive the two gear rings 404 to operate through the second motor 408. The single-drive setting is more energy-saving and can ensure the synchronous displacement of the upper and lower side beating meters 414, thereby improving the accuracy of the detection structure.

[0036] The effect and working principle achieved by the entire mechanism are as follows: when the spindle loading device of the CNC machine tool is used, the spindle body 205 is installed and fixed by setting the installation component 2. After the spindle body 205 is installed and fixed with the drive seat 204, the operation of the drive seat 204 can drive the spindle body 205 to follow the rotation. By cooperating with the loading component 3 and the detection component 4, the stability detection of the spindle body 205 can be completed by loading. After completing the installation operation of the spindle body 205, the spindle body 205 is sent into the shell 1 for the loading detection process. Starting the first electric telescopic rod 202 to extend can drive the displacement frame 203 to move downward. When the displacement frame 203 moves downward, it can drive the drive seat 204 and the spindle body 20 5 follows the downward movement. At this time, the spindle body 205 can enter the interior of the housing 1 through the through hole. The spindle body 205 entering the housing 1 will be located at the inner side of the two circular plates 402. The baffle plate 418 is set to provide support for the second spring 419. The initial position of the beating meter 414 is supported by the setting of the second spring 419, so that the probe 415 is located near the outer side of the through hole to avoid position interference when the spindle body 205 is sent in. At this time, the second motor 408 is operated to drive the beating meter 414 and the probe 415 to move to the surface of the spindle body 205. The probe 415 is used to fit the surface of the spindle body 205 to realize the stability detection of the spindle body 205 in the rotating state. After the second motor 408 is operated The rotating shaft 409 can be driven to rotate, and the rotation of the rotating shaft 409 can drive the two gears 410 to rotate. When the two gears 410 rotate, they can synchronously drive the two gear rings 404 to rotate. The second motor 408 is used to synchronously drive the two gear rings 404 to operate. The single-drive setting is more energy-saving and can ensure the synchronous displacement of the beating meters 414 on the upper and lower sides, thereby improving the accuracy of the detection structure. The gear ring 404 is supported by the plane bearing 403 when rotating. The rotation of the gear ring 404 drives the linkage frame 405 and the rotating ring 406 to rotate. When the rotating ring 406 rotates, it can drive the guide block 407 to rotate. When the guide block 417 rotates toward the roller 417, the guide block 417 The inclined surface will press the roller 417. After being pressed, the roller 417 will drive the beating instrument 414 to move toward the main shaft body 205 through the connection between the support seat 416 and the connecting seat 413. When displaced, the connecting seat 413 will compress the second spring 419 to contract, and the connecting seat 413 will drive the slider 412 to move along the slide rail 411, that is, the displacement of the connecting seat 413 is supported and limited by the matching setting of the slider 412 and the slide rail 411. At this time, the beating instrument 414 is displaced, so that the probe 415 is in a fit state with the surface of the main shaft body 205. The setting of driving the displacement of multiple rollers 417 synchronously by the rotation of the guide block 407, and the synchronous displacement of multiple rollers 417 can ensure that the displacement amplitudes of multiple beating instruments 414 are consistent.This ensures that the multiple beating meters 414 are accurately displaced to a state in which they fit the surface of the spindle body 205, thereby improving the accuracy of the detection result. At this time, the driving seat 204 is started to drive the spindle body 205 to rotate at a high speed. During the rotation of the spindle body 205, the probe 415 is arranged to fit the surface of the spindle body 205. If the rotation state of the spindle body 205 jumps, pressure will be applied to the probe 415. When the probe 415 is subjected to pressure, the data of the beating meter 414 will change. The detection data of the multiple beating meters 414 can be displayed at the display screen 6. After the detection is completed, the second motor 408 is started to drive the rotating ring 406 to reset, and the resilience of the second spring 419 can be used to drive the connecting seat 413 to reset. While the shaft body 205 is rotating for stability detection, the main shaft body 205 is radially loaded through the setting of the loading component 3. By applying the loading state to the main shaft body 205, the stress state of the main shaft body 205 when connected to the CNC machine tool for processing can be simulated, and an accurate stability detection result of the main shaft body 205 can be obtained. When the loading component 3 is running, starting the extension of the second electric telescopic rod 302 can drive the push plate 303 to move in the direction of the arc block 309. The push plate 303 contacts the arc block 309 and applies pressure, which can push the sliding rod 308 and the loading block 310 to move toward the main shaft body 205. When the loading block 310 moves, the first spring 312 is stretched, so that the loading block 310 is pressed against the surface of the main shaft body 205 to apply pressure. When the arc block 309 is pressed and drives the sliding rod 308 and the loading block 310 to move, the sliding rod 308 will move along the socket, that is, the displacement trajectory of the sliding rod 308 is limited by the cooperation of the rotating block 307 and the socket. When the rotating block 307 is in a horizontal state, the direction of the socket is also in a horizontal state, so the sliding rod 308 will move horizontally and drive the loading block 310 to press against the surface of the spindle body 205. When the loading block 310 presses against the surface of the spindle body 205, the setting of the ball 311 can reduce the friction force. The surface of the spindle body 205 is radially loaded by the loading block 310, thereby achieving the purpose of simulating the processing state. At this time, multiple runout meters 414 and probes 415 are used synchronously to calibrate the spindle body 205 is tested for status at each position to achieve the purpose of testing the stability of the main shaft body 205 in the loaded state. After completing one loading, the second electric telescopic rod 302 is retracted and reset. At this time, the arc block 309 is separated from the support, and the loading block 310 is reset by the rebound force of the first spring 312. Then, the loading angle of the loading block 310 is adjusted by the operation of the first motor 305. After the operation of the first motor 305, the support shaft 306 can be driven to rotate. The rotation of the support shaft 306 can drive the rotating block 307 to rotate for angle adjustment. After the rotating block 307 completes the angle adjustment and is in a tilted state, the second electric telescopic rod 302 is continued to be started to extend. When the push plate 303 applies pressure to the arc block 309,The arc block 309 will drive the sliding rod 308 to move along the jack. At this time, since the rotating block 307 is in an inclined state, the sliding rod 308 will move along the slot in the inclined state, that is, the sliding rod 308 can drive the loading block 310 to load an oblique force on the spindle body 205. After completing the oblique force loading at one angle, the second electric telescopic rod 302 contracts to drive the arc block 309 to contract and reset, and the first motor 305 is continued to be started to adjust the angle of the rotating block 307. The second electric telescopic rod 302 continues to extend and run, and the angle can be changed to load the oblique force on the spindle body 205. Through the coordinated operation of the second electric telescopic rod 302 and the first motor 305, the loading block 310 can be driven to load the spindle body 205 at multiple angles, and the angle of the loading state can be freely adjusted during the detection process to meet the loading simulation of various actual processing stress conditions of the spindle body 205, effectively improving the accuracy of the performance detection results of the spindle body 205.

[0037] Among them, the first electric telescopic rod 202, the driving seat 204, the second electric telescopic rod 302, the first motor 305, the second motor 408, the vibrating meter 414 and the display screen 6 are all prior arts, and their components and use principles are all public arts, which will not be explained in detail here.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A spindle loading device for a CNC machine tool, comprising a housing (1), a mounting assembly (2), a loading assembly (3) and a detection assembly (4), characterized in that: A door (5) is hingedly connected to the outer surface of the shell (1), and a display screen (6) is fixedly connected to the top of the shell (1); The mounting assembly (2) is fixedly connected to the top of the housing (1), and the mounting assembly (2) comprises a mounting frame (201), a first electric telescopic rod (202) is fixedly connected to the top of the mounting frame (201), a displacement frame (203) is fixedly connected to the lower end surface of the first electric telescopic rod (202), a driving seat (204) is fixedly connected to the outer surface of the displacement frame (203), and a main shaft body (205) is fixedly mounted on the output end of the driving seat (204); The loading assembly (3) is fixedly connected to the inner surface of the housing (1), the loading assembly (3) comprises a side frame (301), a second electric telescopic rod (302) is fixedly connected to the inner surface of the side frame (301), and a push plate (303) is fixedly connected to the end surface of the second electric telescopic rod (302); The detection component (4) is fixedly connected to the inner surface of the housing (1), and the detection component (4) comprises two supports (401), the outer surfaces of the supports (401) are fixedly connected to circular plates (402), and the bottoms of the circular plates (402) are evenly fixedly connected to a plurality of slide rails (411).

2. The spindle loading device for a CNC machine tool according to claim 1, characterized in that: A through hole is provided at the top of the housing (1); the main shaft body (205) is located above the housing (1); the main shaft body (205) matches the position of the through hole; the center of the main shaft body (205) is consistent with that of the circular plate (402).

3. The spindle loading device for a CNC machine tool according to claim 1, characterized in that: A bracket (304) is fixedly connected to the bottom of the inner side frame (301); a support shaft (306) is symmetrically rotatably connected to the inner surface of the bracket (304); a first motor (305) is fixedly connected to the outer surface of the bracket (304); an output end of the first motor (305) passes through the bracket (304) and extends to the inner side; the output end of the first motor (305) is fixedly connected to one of the support shafts (306); and a rotating block (307) is fixedly connected between the end surfaces of the two support shafts (306).

4. The spindle loading device for a CNC machine tool according to claim 3, characterized in that: The outer surface of the rotating block (307) is provided with an insertion hole, the inner surface of the insertion hole is slidably connected to a sliding rod (308), and the end surface of the sliding rod (308) close to the push plate (303) is fixedly connected to an arc block (309), and the arc block (309) is matched with the push plate (303) in position.

5. The spindle loading device for a CNC machine tool according to claim 4, characterized in that: A loading block (310) is fixedly connected to the end face of the other side of the sliding rod (308); the inner surface of the loading block (310) is arc-shaped; the loading block (310) matches the position of the main shaft body (205); a plurality of circular holes are evenly opened on the inner surface of the loading block (310); balls (311) are movably connected inside the plurality of circular holes; a first spring (312) is symmetrically fixedly connected to the outer surface of the loading block (310) on the side close to the rotating block (307); the first spring (312) is located outside the sliding rod (308); and the end face of the first spring (312) is fixedly connected to the outer surface of the rotating block (307).

6. The CNC machine tool spindle loading device according to claim 1, characterized in that: A plane bearing (403) is fixedly connected to the top of the circular plate (402), the plane bearing (403) is located near the edge of the top of the circular plate (402), and a gear ring (404) is fixedly connected to the top of the plane bearing (403).

7. The spindle loading device for a CNC machine tool according to claim 6, characterized in that: A second motor (408) is fixedly connected to the bottom of the circular plate (402) located at the lower side, and an output end of the second motor (408) passes through the circular plate (402) and extends to the upper side. A rotating shaft (409) is fixedly connected to the output end of the second motor (408), and the rotating shaft (409) slides through another circular plate (402) and extends to the upper side. Two gears (410) are fixedly connected to the outer surface of the rotating shaft (409), and the two gears (410) are respectively in a meshing state with the two gear rings (404).

8. The spindle loading device for a CNC machine tool according to claim 6, characterized in that: A plurality of linkage frames (405) are evenly and fixedly connected to the top of the gear ring (404); a rotating ring (406) is fixedly connected between the bottoms of the plurality of linkage frames (405); the rotating ring (406) is located at the lower side of the circular plate (402); a plurality of guide blocks (407) are evenly and fixedly connected to the inner surface of the rotating ring (406); the number of the guide blocks (407) and the spacing angle of the guide blocks (407) are the same as those of the slide rails (411).

9. The CNC machine tool spindle loading device according to claim 8, characterized in that: The outer surface of the slide rail (411) is slidably connected to a slider (412), the bottom of the slider (412) is fixedly connected to a connecting seat (413), the bottom of the connecting seat (413) is fixedly connected to a vibration meter (414), the output end of the vibration meter (414) is provided with a probe (415), the position of the probe (415) matches the position of the spindle body (205), the outer surface of the connecting seat (413) away from the vibration meter (414) is fixedly connected to a support seat (416), the inner surface of the support seat (416) is rotatably connected to a roller (417), the outer surface of the roller (417) is in contact with the inner surface of the rotating ring (406), the position of the roller (417) matches that of the guide block (407), and the vibration meter (414) is electrically connected to the display screen (6).

10. The spindle loading device for a CNC machine tool according to claim 9, characterized in that: A baffle (418) is fixedly connected to the outer surface of the side of the slide rail (411) away from the roller (417), and a second spring (419) is fixedly connected to the outer surface of the side of the baffle (418) close to the connecting seat (413), and an end surface of the second spring (419) is fixedly connected to the inner surface of the connecting seat (413).

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