A spindle loading device for a numerically controlled machine tool

Abstract

The present invention discloses a spindle loading device for a numerical control machine tool, which relates to the technical field of performance testing of numerical control machine tools. It includes a housing, a mounting component, a loading component and a detection component. A box door is hinged on the outer surface of the housing, and a display screen is fixedly connected to the top of the housing; the mounting component is fixedly connected to the top of the housing, and the mounting component includes 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 surface of the first electric telescopic rod, and a driving seat is fixedly connected to the outer surface of the displacement frame. In the present invention, through the coordinated operation of the second electric telescopic rod and the first motor, the loading block can be driven to perform multi-angle loading on the spindle body, and the loading state can be freely adjusted in terms of angle during the detection process to meet the loading simulation of various actual machining force conditions of the spindle body, effectively improving the accuracy of the performance detection results of the spindle body.

Description

Technical Field

[0001] The present invention relates to the technical field of performance testing of numerical control machine tools, and particularly to a spindle loading device for a numerical control machine tool. Background Art

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

[0003] In the prior art, when performing a performance test on the spindle of a numerical control machine tool in a loaded state, the traditional loading device usually pushes horizontally on the side of the spindle to perform radial loading on the spindle to achieve the purpose of simulating the machining state. However, a single loading angle cannot effectively simulate the complex machining state of a numerical control machine tool, resulting in incomplete detection results and poor accuracy.

[0004] Therefore, a spindle loading device for a numerical control machine tool is proposed to solve the problems raised in the above background art. Summary of the Invention

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

[0006] To achieve the above object, the present invention provides the following technical solution: A spindle loading device for a numerical control machine tool, including a housing, a mounting component, a loading component, and a detection component. A box door is hinged on the outer surface of the housing, and a display screen is fixedly connected to the top of the housing; the mounting component is fixedly connected to the top of the housing, and the mounting component includes 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 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 at the output end of the driving seat; the loading component is fixedly connected to the inner surface of the housing, and the loading component includes a side frame. A second electric telescopic rod is fixedly connected to the inner surface of the side frame. A push plate is fixedly connected to the end surface of the second electric telescopic rod; the detection component is fixedly connected to the inner surface of the housing, and the detection component includes two supports. A circular plate is fixedly connected to the outer surface of the support, and a plurality of slide rails are uniformly fixedly connected to the bottom of the circular plate.

[0007] Preferably, a through hole is provided at the top of the housing. The spindle body is located above the housing, and the spindle body is matched with the position of the through hole, and the spindle body is consistent with the center of the circular plate.

[0008] Preferably, a bracket is fixedly connected to the inner bottom of the side frame. Symmetrically rotatably connected to the inner surface of the bracket are support shafts. Fixedly connected to the outer surface of the bracket is a first motor. The output end of the first motor penetrates the bracket and extends to the inner side. The output end of the first motor is fixedly connected to one of the support shafts. Between the end faces of the two support shafts is fixedly connected a rotating block.

[0009] Preferably, insertion holes are formed in the outer surface of the rotating block. Slidably connected to the inner surface of the insertion holes are sliding rods. Fixedly connected to the end face of the sliding rod close to the push plate is an arc-shaped block, and the arc-shaped block is in a matching position with the push plate.

[0010] Preferably, fixedly connected to the other end face of the sliding rod is a loading block. The inner surface of the loading block is arc-shaped, and the loading block is in a matching position with the main shaft body. A plurality of circular holes are evenly formed in the inner surface of the loading block. A ball is movably connected to each of the plurality of circular holes. Symmetrically fixedly connected to the outer surface of the loading block close to the rotating block are first springs. The first springs are located outside the sliding rods, and the end faces of the first springs are fixedly connected to the outer surface of the rotating block.

[0011] Preferably, a plain bearing is fixedly connected to the top of the circular plate. The plain bearing is located close to the edge at the top of the circular plate. A toothed ring is fixedly connected to the top of the plain bearing.

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

[0013] Preferably, a plurality of linkage frames are evenly fixedly connected to the top of the toothed ring. Between the bottoms of the plurality of linkage frames is fixedly connected a rotating ring. The rotating ring is located below the circular plate. A plurality of guiding blocks are evenly fixedly connected to the inner surface of the rotating ring. The number of the guiding blocks is the same as that of the slide rails and the interval angles are the same.

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

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

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, when the spindle loading device of the numerical control machine tool is used, through the setting of the loading component, radial loading is performed on the spindle body to simulate the force state of the spindle body when connected to the numerical control machine tool for processing. By running the first motor, the inclination angle of the rotating block can be adjusted, and the sliding rod will displace along the inclined slot, that is, the sliding rod can drive the loading block to apply an oblique force to the spindle body. Through the combined operation of the second electric telescopic rod and the first motor, the loading block can be driven to perform multi-angle loading on the spindle body, and the loading state can be freely adjusted during the detection process to meet the loading simulation of various actual processing force conditions of the spindle body, effectively improving the accuracy of the spindle body performance detection results.

[0018] 2. In the present invention, through the setting of driving the synchronous displacement of multiple rollers by the rotation of the guiding block, the multiple rollers are displaced synchronously, which can ensure that the displacement amplitudes of the multiple dial indicators are consistent, and further ensure that the multiple dial indicators are accurately displaced to the state of fitting the surface of the spindle body, improving the accuracy of the detection results.

[0019] 3. In the present invention, through the setting of driving the synchronous operation of two toothed rings by the operation of the second motor, the single-drive setting is more energy-saving, and it can ensure the synchronous displacement of the dial indicators on the upper and lower sides, improving the accuracy of the detection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective view of a spindle loading device of a numerical control machine tool according to the present invention;

[0021] Figure 2 is a schematic diagram of the internal structure of the housing of a spindle loading device of a numerical control machine tool according to the present invention;

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

[0023] Figure 4 is a schematic diagram of the partial structure combination of a spindle loading device of a numerical control machine tool according to the present invention;

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

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

[0026] Figure 7 Schematic diagram of the bottom structure of the circular plate of a spindle loading device for a numerical control machine tool according to the present invention;

[0027] Figure 8 Schematic diagram of the dial indicator structure of a spindle loading device for a numerical control machine tool according to the present invention.

[0028] In the figure: 1. Outer shell; 2. Mounting assembly; 201. Mounting frame; 202. First electric telescopic rod; 203. Displacement frame; 204. Driving seat; 205. Spindle body; 3. Loading assembly; 301. Side frame; 302. Second electric telescopic rod; 303. Pushing plate; 304. Bracket; 305. First motor; 306. Support shaft; 307. Rotating block; 308. Sliding rod; 309. Arc-shaped block; 310. Loading block; 311. Ball; 312. First spring; 4. Detection assembly; 401. Support; 402. Circular plate; 403. Plain bearing; 404. Tooth ring; 405. Linkage frame; 406. Rotating ring; 407. Guide block; 408. Second motor; 409. Rotating shaft; 410. Gear; 411. Slide rail; 412. Slide block; 413. Connecting seat; 414. Dial indicator; 415. Probe; 416. Support seat; 417. Roller; 418. Baffle; 419. Second spring; 5. Cabinet door; 6. Display screen. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1: Please refer to Figures 1-8As shown in the figure, the present invention provides a technical solution: a spindle loading device for a numerically controlled machine tool, which includes a housing 1, a mounting assembly 2, a loading assembly 3 and a detection assembly 4. A box door 5 is hinged on the outer surface of the housing 1, and a display screen 6 is fixedly connected to the top of the housing 1; the mounting assembly 2 is fixedly connected to the top of the housing 1. The mounting assembly 2 includes a mounting frame 201. A first electric telescopic rod 202 is fixedly connected to the inner top of the mounting frame 201. The lower end surface of the first electric telescopic rod 202 is fixedly connected to a displacement frame 203. A driving seat 204 is fixedly connected to the outer surface of the displacement frame 203. The output end of the driving seat 204 is fixedly installed with a spindle body 205; the loading assembly 3 is fixedly connected to the inner surface of the housing 1. The loading assembly 3 includes a side frame 301. A second electric telescopic rod 302 is fixedly connected to the inner surface of the side frame 301. A push plate 303 is fixedly connected to the end surface of the second electric telescopic rod 302; the detection assembly 4 is fixedly connected to the inner surface of the housing 1. The detection assembly 4 includes two supports 401. A circular plate 402 is fixedly connected to the outer surface of the support 401. A plurality of slide rails 411 are evenly fixedly connected to the bottom of the circular plate 402. A through hole is opened at the top of the housing 1. The spindle body 205 is located above the housing 1. The spindle body 205 is matched with the position of the through hole. The spindle body 205 is consistent with the center of the circular plate 402. A support 304 is fixedly connected to the inner bottom of the side frame 301. A support shaft 306 is symmetrically rotatably connected to the inner surface of the support 304. A first motor 305 is fixedly connected to the outer surface of the support 304. The output end of the first motor 305 penetrates through the support 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. A rotating block 307 is fixedly connected between the end surfaces of the two support shafts 306. A jack is opened on the outer surface of the rotating block 307. A sliding rod 308 is slidably connected to the inner surface of the jack. An arc-shaped block 309 is fixedly connected to the end surface of the sliding rod 308 close to the push plate 303. The arc-shaped block 309 is matched with the position of the push plate 303. The other end surface of the sliding rod 308 is fixedly connected to a loading block 310. The inner surface of the loading block 310 is arc-shaped. The loading block 310 is matched with the position of the spindle body 205. A plurality of circular holes are evenly opened on the inner surface of the loading block 310. A ball 311 is movably connected inside each of the plurality of circular holes. Two first springs 312 are symmetrically fixedly connected to the outer surface of the loading block 310 close to the rotating block 307. The first springs 312 are located outside the sliding rod 308. The end surface of the first spring 312 is fixedly connected to the outer surface of the rotating block 307. A flat bearing 403 is fixedly connected to the top of the circular plate 402. The flat bearing 403 is located near the edge of the top of the circular plate 402. A toothed ring 404 is fixedly connected to the top of the flat bearing 403. A second motor 408 is fixedly connected to the bottom of the lower circular plate 402. The output end of the second motor 408 penetrates 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 slidably penetrates through the other circular plate 402 and extends to the upper side. Two gears 410 are fixedly connected to the outer surface of the rotating shaft 409.Two gears 410 are respectively in meshing engagement with two toothed rings 404. A plurality of linkage frames 405 are evenly and fixedly connected to the top of the toothed 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 below the circular plate 402. A plurality of guiding blocks 407 are evenly and fixedly connected to the inner surface of the rotating ring 406. The number of the guiding blocks 407 is the same as that of the sliding rails 411 and the interval angles are the same. A slider 412 is slidably connected to the outer surface of the sliding rail 411. A connecting seat 413 is fixedly connected to the bottom of the slider 412. A pulsometer 414 is fixedly connected to the bottom of the connecting seat 413. A probe 415 is arranged at the output end of the pulsometer 414. The probe 415 is matched with the position of the main shaft body 205. A support seat 416 is fixedly connected to the outer surface of the connecting seat 413 away from the pulsometer 414. A roller 417 is rotatably connected to the inner surface of the support seat 416. The outer surface of the roller 417 is in contact with the inner surface of the rotating ring 406. The roller 417 is matched with the position of the guiding block 407. The pulsometer 414 is electrically connected to the display screen 6. A baffle 418 is fixedly connected to the outer surface of the sliding rail 411 away from the roller 417. A second spring 419 is fixedly connected to the outer surface of the baffle 418 close to the connecting seat 413. The end face of the second spring 419 is fixedly connected to the inner surface of the connecting seat 413.,

[0031] Steps of using the present invention: When the spindle loading device of the numerical control machine tool is in use, after the spindle body 205 is installed and fixed with the driving seat 204, starting the first electric telescopic rod 202 to extend can drive the displacement frame 203 to move downward. At this time, the spindle body 205 can enter the inside of the housing 1 through the through-hole position. By the operation of the second motor 408, the rotating shaft 409 is driven to rotate. By the rotation of the rotating shaft 409, two gears 410 can be driven to rotate. When the two gears 410 rotate, they can synchronously drive two toothed rings 404 to rotate. By the rotation of the toothed ring 404, the linkage frame 405 and the rotating ring 406 are driven to rotate. When the rotating ring 406 rotates, the guide block 407 can be driven to rotate. When the guide block 417 rotates towards the roller 417, the inclined surface of the guide block 417 presses the roller 417. After the roller 417 is pressed, it drives the dial indicator 414 to displace towards the spindle body 205 through the connection of the support seat 416 and the connection seat 413. At this time, the dial indicator 414 displaces, so that the probe 415 is in a state of being in contact with the surface of the spindle body 205. At this time, starting the driving seat 204 drives the spindle body 205 to rotate at a high speed. When the probe 415 is under pressure, the data of the dial indicator 414 will change. The detection data of multiple dial indicators 414 can be displayed through the display screen 6. While the spindle body 205 rotates for stability detection, through the setting of the loading component 3, radial loading is applied to the spindle body 205 to simulate the stress state of the spindle body 205 when connected to the numerical control machine tool for processing, and an accurate stability detection result of the spindle body 205 is obtained. Starting the second electric telescopic rod 302 to extend can drive the push plate 303 to move towards the arc-shaped block 309, and can push the sliding rod 308 and the loading block 310 to displace towards the spindle body 205. When the arc-shaped block 309 is pressed to drive the sliding rod 308 and the loading block 310 to displace, the sliding rod 308 will displace along the jack hole, that is, the displacement trajectory of the sliding rod 308 is limited by the cooperation setting of the rotating block 307 and the jack hole. When the rotating block 307 is in a horizontal state, the direction of the jack hole is also horizontal, so the sliding rod 308 will displace horizontally to 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, radial loading is applied to the surface of the spindle body 205, achieving the purpose of simulating the processing state. After one loading is completed, the second electric telescopic rod 302 contracts and resets. At this time, the arc-shaped block 309 is separated from the support, and the resilience of the first spring 312 drives the loading block 310 to reset. Subsequently, by the operation of the first motor 305, the loading angle of the loading block 310 is adjusted. After the first motor 305 operates, the support shaft 306 can be driven to rotate. By the rotation of the support shaft 306, the rotating block 307 can be driven to rotate for angle adjustment. After the rotating block 307 completes the angle adjustment and is in an inclined state, continue to start the second electric telescopic rod 302 to extend. When the push plate 303 presses the arc-shaped block 309,The arc-shaped block 309 drives the sliding rod 308 to displace along the jack. At this time, since the rotating block 307 is in an inclined state, the sliding rod 308 will displace along the inclined slot, that is, the sliding rod 308 can drive the loading block 310 to apply an oblique force to the main shaft body 205. After the oblique force of one angle is loaded, the second electric telescopic rod 302 contracts to drive the arc-shaped block 309 to contract and reset. The first motor 305 is started again to adjust the angle of the rotating block 307, and the second electric telescopic rod 302 continues to extend and run, so that the oblique force can be loaded on the main shaft body 205 at a different angle. Through the coordinated operation of the second electric telescopic rod 302 and the first motor 305, the loading block 310 can apply multi-angle loading to the main shaft body 205, and the loading state can be freely adjusted during the detection process to meet the loading simulation of the actual processing force of various main shaft bodies 205, effectively improving the accuracy of the performance detection results of the main shaft body 205.,

[0032] Embodiment 2: As Figure 4 , Figure 6 , Figure 7 and Figure 8 shown, a plurality of linkage frames 405 are uniformly and fixedly connected to the top of the toothed 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 below the circular plate 402. A plurality of guiding blocks 407 are uniformly and fixedly connected to the inner surface of the rotating ring 406. The guiding blocks 407 and the slide rails 411 are the same in number and the same in interval angle. 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 jump meter 414 is fixedly connected to the bottom of the connecting seat 413. A probe 415 is arranged at the output end of the jump meter 414. The probe 415 is matched with the position of the main shaft body 205. A support seat 416 is fixedly connected to the outer surface of the connecting seat 413 away from the jump meter 414. A roller 417 is rotatably connected to the inner surface of the support seat 416. The outer surface of the roller 417 is attached to the inner surface of the rotating ring 406. The roller 417 is matched with the position of the guiding block 407.

[0033] The using steps of the present invention. Through the setting that the rotation of the guiding block 407 drives the displacement of a plurality of rollers 417 synchronously, the synchronous displacement of the plurality of rollers 417 can ensure that the displacement amplitudes of the plurality of jump meters 414 are consistent, and further ensure that the plurality of jump meters 414 are accurately displaced to the state of being attached to the surface of the main shaft body 205, improving the accuracy of the detection results.

[0034] Embodiment 3: As Figure 4 and Figure 6As shown in the figure, the output end of the second motor 408 penetrates 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. The rotating shaft 409 slidably penetrates 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 usage steps of the present invention: through the setting that the second motor 408 operates to synchronously drive the two toothed rings 404 to rotate, the single-drive setting is relatively energy-saving, and it can ensure the synchronous displacement of the dial indicators 414 on the upper and lower sides, improving the accuracy of the detection structure.

[0036] The effects achieved by the entire mechanism and its working principle are as follows: When the spindle loading device of the CNC machine tool is in use, through the setting of the installation component 2, the spindle body 205 is installed and fixed. After the spindle body 205 is installed and fixed with the driving seat 204, the operation of the driving seat 204 can drive the spindle body 205 to rotate. Through the combined use of the loading component 3 and the detection component 4, the stability detection of the spindle body 205 can be completed by loading. After the installation operation of the spindle body 205 is completed, the spindle body 205 is sent into the housing 1 to start 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 driving seat 204 and the spindle body 205 to move downward. At this time, the spindle body 205 can enter the housing 1 through the through-hole position. The spindle body 205 that enters the housing 1 will be located inside the two circular plates 402. The setting of the baffle 418 provides support for the second spring 419. Through the setting of the second spring 419, the initial position of the dial indicator 414 is supported, so that the probe 415 is located near the outside of the through-hole, avoiding position interference when the spindle body 205 is sent in. At this time, through the operation of the second motor 408, the dial indicator 414 and the probe 415 are driven to the surface position of the spindle body 205. By using the probe 415 to fit the surface of the spindle body 205, the stability detection of the rotating spindle body 205 is realized. After the second motor 408 operates, it can drive the rotating shaft 409 to rotate. Through the rotation of the rotating shaft 409, two gears 410 can be driven to rotate. When the two gears 410 rotate, they can synchronously drive two toothed rings 404 to rotate. Through the setting of the second motor 408 operating to synchronously drive the two toothed rings 404 to operate, the single-drive setting is more energy-saving and can ensure the synchronous displacement of the dial indicators 414 on the upper and lower sides, improving the accuracy of the detection structure. When the toothed ring 404 rotates, it is supported by the plain bearing 403. Through the rotation of the toothed ring 404, the linkage frame 405 and the rotating ring 406 are driven to rotate. When the rotating ring 406 rotates, it can drive the guide block 407 to rotate. When the guide block 417 rotates towards the roller 417, the inclined surface of the guide block 417 presses the roller 417. After the roller 417 is pressed, it will drive the dial indicator 414 to move towards the spindle body 205 through the connection of the support seat 416 and the connection seat 413. When the connection seat 413 moves, it will compress the second spring 419 and contract. The connection seat 413 will drive the slider 412 to move along the slide rail 411, that is, the cooperation of the slider 412 and the slide rail 411 plays a role in supporting and limiting the displacement of the connection seat 413. At this time, the dial indicator 414 moves, so that the probe 415 is in a fitting state with the surface of the spindle body 205. Through the setting of the guide block 407 rotating to synchronously drive multiple rollers 417 to displace, multiple rollers 417 displace synchronously, which can ensure that the displacement amplitudes of multiple dial indicators 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-shaped block 309 drives the sliding rod 308 to displace along the jack. At this time, since the rotating block 307 is in an inclined state, the sliding rod 308 will displace along the inclined slot, that is, the sliding rod 308 can drive the loading block 310 to apply an oblique force to the main shaft body 205. After the oblique force of one angle is loaded, the second electric telescopic rod 302 contracts to drive the arc-shaped block 309 to contract and reset. Then, the first motor 305 is started to adjust the angle of the rotating block 307, and the second electric telescopic rod 302 continues to extend. Then, the oblique force can be loaded on the main shaft body 205 at a different angle. Through the coordinated operation of the second electric telescopic rod 302 and the first motor 305, the loading block 310 can apply oblique forces to the main shaft body 205 at multiple angles, and the loading state can be freely adjusted during the detection process to meet the loading simulation of the actual processing force of various main shaft bodies 205, effectively improving the accuracy of the performance detection results of the main shaft body 205.

[0037] Among them, the first electric telescopic rod 202, the drive seat 204, the second electric telescopic rod 302, the first motor 305, the second motor 408, the runout meter 414 and the display screen 6 are all prior arts, and their components and working principles are all public technologies, so no further explanation will be given here.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall 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), a spindle body (205) is fixedly mounted on the output end of the driving seat (204), a through hole is opened at the top of the housing (1), the spindle body (205) is located above the housing (1), 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); The loading assembly (3) is fixedly connected to the inner surface of the housing (1), and the loading assembly (3) comprises a side frame (301), the inner surface of the side frame (301) is fixedly connected to a second electric telescopic rod (302), the end surface of the second electric telescopic rod (302) is fixedly connected to a push plate (303), the bottom of the inner side frame (301) is fixedly connected to a bracket (304), the inner surface of the bracket (304) is symmetrically rotatably connected to a support shaft (306), and the outer surface of the bracket (304) is fixedly connected to a first motor (305), the first motor The output end (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). A rotating block (307) is fixedly connected between the end faces of the two support shafts (306). A plug hole is provided on the outer surface of the rotating block (307). A sliding rod (308) is slidably connected to the inner surface of the plug hole. An arc block (309) is fixedly connected to the end face of the sliding rod (308) close to the push plate (303). The arc block (309) matches the position of the push plate (303). The detection component (4) is fixedly connected to the inner surface of the housing (1). The detection component (4) comprises two supports (401). A circular plate (402) is fixedly connected to the outer surface of the support (401). A plurality of slide rails (411) are evenly fixedly connected to the bottom of the circular plate (402). 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 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 the guide blocks (407) and the guide rails (411) are the same and the interval angles are the same; the outer surface of the guide 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 runout meter (414); a probe (415) is provided at the output end of the runout meter (414); the position of the probe (415) matches that of the spindle body (205); the outer surface of the connecting seat (413) away from the runout 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 runout meter (414) is electrically connected to the display screen (6).

2. The spindle loading device for a CNC machine tool according to claim 1, 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).

3. The spindle loading device for a CNC machine tool according to claim 1, 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).

4. The spindle loading device for a CNC machine tool according to claim 1, 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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