Distributed multi-channel digital intelligent spindle vibration characteristic on-line analysis and detection system

Abstract

A kind of based on the first 8 channel digital smart spindle vibration characteristic on-line detector of domestic and foreign, distributed multi-channel digital smart spindle vibration characteristic on-line analysis detection system, belong to a kind of new type intelligent manufacturing equipment in textile machinery manufacturing field.System is linked by each subsystem and is composed of, including: mechanical movement execution module, 8 channel digital smart spindle vibration characteristic on-line detector module, PLC travel program, automatic stock bin control module, spindle drive control speed measurement module, spindle temperature detection module, data processing, display, file storage module.System uses a variety of modern mechatronics digital intelligent automatic control technology, single-chip microcomputer special spindle vibration true peak peak value sampling processing, sensitivity key value, alarm key key value storage calling subroutine, host computer Python scientific calculation, statistical analysis, graphics processing, distributed system technology, be applied to spindle production manufacturing and spindle research and development design field vibration characteristic on-line detection, intelligent sorting, spectrum analysis, information storage.

Description

Technical Field

[0001] This invention belongs to the textile machinery component manufacturing industry. It integrates laser fiber optic velocimetry, non-contact eddy current dynamic vibration testing, frequency conversion drive, HMI (human-machine interface), PLC stroke program control technology, microcontroller-based real-time peak-to-peak data sampling and processing, sensitivity setting, alarm limit setting, automatic alarm intelligent instrumentation and control technology, OLED real-time amplitude display technology, online detection and control technology, digital temperature sensor technology, Python scientific computing, statistical analysis, graphics processing, and information storage technology, spectrum analysis technology, distributed system technology, RS485-Modbus / RTU serial communication technology, and various modern mechatronics digital intelligent automatic control technologies. It applies these technologies to a dedicated equipment system for dynamic vibration testing, intelligent sorting, spectrum analysis, process control, and information storage in the online testing and control of spindle production and the research and design of spindles. This system belongs to the category of new intelligent manufacturing equipment in the textile machinery manufacturing field and is a distributed multi-channel digital intelligent online analysis and detection system for spindle vibration characteristics. Background Technology

[0002] Spindles are high-speed rotating components on spinning frames in the textile industry. Domestically, spindle speeds typically range from 16,000 rpm to 22,000 rpm, with high-speed spindles reaching 25,000 rpm, and newly exhibited high-speed spindles reaching 35,000 rpm. Hundreds of millions of spindles operate nationwide. High-speed spindle manufacturers are large-scale production enterprises. Spindle amplitude is a key indicator for evaluating spindle performance. Currently, there are no dedicated online spindle vibration meters on the market; only a portable spindle vibration meter developed in the 1970s exists. This portable spindle vibration meter uses the silicon photovoltaic cell shading area comparison method. The difference between the major and minor axes of the elliptical needle is taken as the horizontal axis length, and the vertical height of the light-receiving window of the silicon photovoltaic cell is taken as the vertical axis. The shading area formed by the two changes during rotation, that is, the luminous flux changes. The luminous flux caused by the difference between the major and minor axes of the elliptical needle is adjusted to the corresponding mV value of the silicon photovoltaic cell, which is used as an approximation as the peak-to-peak value calibration value of the elliptical needle. The magnitude of the luminous flux caused by the spindle amplitude is compared with the nominal value of the instrument to measure the magnitude of the spindle amplitude, which is not the actual peak-to-peak value in the physical sense.

[0003] The instrument's optical system cannot adapt to the oil mist production environment on site for a long time. As the optical measurement window becomes contaminated with oil mist, the light flux gradually decreases naturally, the amount of light received by the silicon photocell decreases, resulting in a decrease in the output voltage of the silicon photocell, a decrease in the measurement sensitivity of the measurement system, and a gradual decrease in measurement accuracy, making it unable to meet the requirements of continuous online detection technology on site.

[0004] This instrument uses a silicon photovoltaic cell shading area comparison method, not a true peak-to-peak measurement. In practice, it can be simplified to a three-and-a-half-digit DC voltmeter with an equivalent value of micrometers per millivolt and a range of 2000mV. It is not an intelligent instrument; it lacks MCU microprocessor data sampling and processing capabilities, and its data acquisition function does not meet the requirements of the sampling theorem. For a typical spindle with a spindle speed of 18000rpm, its operating frequency is 300Hz. According to the sampling theorem, the sampling frequency should be at least 600Hz, i.e., a sampling period of 1.67ms. However, the sampling time of this instrument is approximately 400-600ms, the refresh time of the LCD screen. Therefore, in practical engineering applications, it is impossible to accurately capture the real-time peak-to-peak value at the actual operating frequency.

[0005] Spindle manufacturers and yarn mills typically use tactile evaluation to assess the amplitude of spindles. The advantages of this tactile evaluation method are its simplicity, ease of implementation, and zero cost. However, its drawbacks are obvious: it relies on the experience of the person measuring, is a qualitative feeling, cannot be accurately quantified, and is therefore quite crude.

[0006] Because spindle production is a mass production type, large-scale enterprises typically produce millions of sets annually. The factory testing of spindles is generally conducted using a test spindle machine modified from a 60-76 spindle spinning short carriage. Large-scale enterprises usually require 2-3 test spindle machines, operating on a two-shift basis, to meet the factory testing requirements for different spindle varieties and specifications. Each test spindle machine is operated by two test operators and two inspectors. If three test spindle machines are used on a two-shift basis, 12 test operators and 12 inspectors are required. During production, the test operators manually pass the spindle to be inspected through the inner ring of the drive belt, completing the loading, unloading, clamping, and unloading processes. The inspectors rely on the tactile sense of their thumb and forefinger to determine the technical requirements: at a spindle speed of 18,000-22,000 rpm, the amplitude of a smooth spindle should be below 0.05 mm, and the amplitude of an aluminum sleeve spindle should be below 0.08 mm. Regardless of the season or weather, the fingertips of the inspectors must touch the tops of the high-speed rotating spindles, which are immersed in oil, to determine their quality. For suspected problematic spindles, repeated touching is necessary for assessment, and defective spindles must be marked for further processing by the commissioning technicians. The intense work pace and the immense workload of the commissioning technicians and inspectors are unimaginable. Inspectors' fingers are immersed in oil year after year, touching the icy ends of the spindles, even in the coldest winter. They rub hundreds of thousands, even millions, of high-speed rotating spindles with their fingers every year; the hardship they endure is self-evident. Online inspection and product qualification classification during the spindle production process have always been the biggest pain points for spindle manufacturers. There is an urgent need for a technology that can achieve intelligent online inspection, automatically complete product qualification identification and classification, implement distributed networking of the production process, and monitor, record and store technical data of the production process and R&D laboratory in real time at different work locations, so as to realize the digitalization, intelligence and automation of the production process. Summary of the Invention

[0007] The purpose of this invention is to fill the gap in the textile industry regarding the lack of a dedicated digital intelligent online analysis and detection system for spindle vibration characteristics, to eliminate the existing outdated and primitive manual methods for evaluating spindle amplitude, and to overcome the various shortcomings of portable spindle vibration meters. It provides a dedicated equipment system that integrates laser fiber optic velocimetry, non-contact eddy current dynamic vibration testing, frequency conversion drive, HMI (human-machine interface), PLC stroke program control technology, microcontroller-based real-time peak-to-peak data sampling and processing, sensitivity setting, alarm limit setting, automatic alarm intelligent instrumentation and control technology, OLED real-time amplitude display technology, online detection and control technology, digital temperature sensor technology, Python scientific computing, statistical analysis, graphics processing, information storage technology, spectrum analysis technology, distributed system technology, RS485-Modbus / RTU serial communication technology, and various modern mechatronics digital intelligent automatic control technologies. This system is applied to the online testing and control of spindle production and the research and development of spindles for dynamic vibration testing, intelligent sorting, spectrum analysis, process control, and information storage. It enables real-time on-site monitoring to meet the needs of digitalization, intelligence, automation, efficiency, reduced labor intensity, and manpower savings in the production process.

[0008] The objective of this invention is achieved as follows: a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system, composed of networked independent "multi-channel digital intelligent spindle vibration characteristic online detection subsystems." Each subsystem includes: a mechanical motion execution module, an 8-channel digital intelligent spindle vibration characteristic online detector module, a PLC stroke program and automatic hopper control module, a spindle drive control speed measurement module, a spindle temperature detection module, and a data processing, display, and file storage module, wherein:

[0009] The mechanical motion execution module is equipped with a double-sided 8-channel parallel double-octane gate feeding, feeding, and radial clamping mechanism; a double-sided 8-channel double-octane gate rotary cylinder spindle axial pressing mechanism; a double 5x stroke heavy hammer tension wheel pressurizing mechanism; a double-sided 8-channel material bridge cornering and locking mechanism; a double-sided 8-channel double-octane gate intelligent automatic hopper mechanism; and a double-sided 8-channel automatic material unloading mechanism.

[0010] The double-sided 8-channel parallel double-eight-and-door feeding, feeding, and radial clamping mechanism; the double-sided 8-channel double-eight-and-door rotary cylinder spindle axial pressing mechanism; the double 5-times stroke heavy hammer tension wheel pressurizing mechanism; the double-sided 8-channel material bridge cornering and locking mechanism; the double-sided 8-channel double-eight-and-door intelligent automatic hopper mechanism; and the double-sided 8-channel automatic unloading mechanism are symmetrically arranged along the longitudinal axis of the mechanical motion execution module.

[0011] For ease of description, the following description will focus on one side of the symmetrical vertical axis of the mechanical motion execution module, while the other symmetrical side has the same structure.

[0012] The bilateral 8-channel parallel double octave AND gate feeding, feeding, and radial clamping mechanism is equipped with a bilateral 8-channel continuous feeding mechanism and a bilateral 8-channel parallel double octave AND gate feeding and radial clamping mechanism.

[0013] The axis of the double-sided 8-channel continuous feeding mechanism is perpendicular to the axis of the double-sided 8-channel parallel double-eight-channel feeding mechanism and parallel to the axis of the radial clamping mechanism;

[0014] Eight proximity switches on both sides constitute the PLC stroke program control logic conditions for the dual-eight gate feeding mechanism with eight parallel channels on both sides.

[0015] The radial clamping mechanism is equipped with a spindle radial clamping buffer device. The hole in the buffer chamber end cover is rectangular, the head of the radial push rod is cylindrical, and the rear is rectangular, which plays the role of radial clamping buffer and axial guidance.

[0016] The bilateral 8-channel continuous feeding mechanism (for ease of description, the following description refers to the first channel on the left in the 8-channel continuous feeding mechanism; the remaining channels have the same structure) includes: a base plate, a left support, a right support, an aluminum profile conveyor belt bracket, a front support, a front fixed wheel, a front fixed wheel axle, a rear support, a rear fixed wheel, a rear fixed wheel axle, a caster wheel, a caster wheel axle, a tensioning wheel, a conveyor belt, a feeding channel side support, a feeding channel side limit strip, a small shaft, a reduction motor, a motor gear, a driven gear, a left half-shaft, a left bearing, a right half-shaft, a right bearing, a split coupling, and a plum blossom coupling, wherein:

[0017] The double-sided 8-channel continuous feeding mechanism has a left support and a right support on its base plate, with aluminum profile conveyor belt supports mounted on both sides. The front support is mounted at the front end of the aluminum profile conveyor belt support, and the front fixed wheel is mounted on the front support via a front fixed wheel axle. The rear support is mounted at the rear end of the aluminum profile conveyor belt support, and the rear fixed wheel is mounted on the rear support via a rear fixed wheel axle. Casters are mounted on the left and right supports via caster wheel axles. Tensioning wheels are mounted in elongated holes on the left and right supports, allowing the tensioning wheels to slide back and forth. The left half-shaft is mounted on the left support via a left bearing, and the right half-shaft is mounted on the right support via a right bearing. On the right support; two conveyor belts are laid flat between the upper and lower planes of the aluminum profile conveyor belt bracket, respectively, via front fixed rollers, rear fixed rollers, support rollers, left half shaft, right half shaft, and tension roller, and the tension of the conveyor belts is adjusted by the tension roller; two feeding channel side brackets are mounted on the aluminum profile conveyor belt bracket, and the feeding channel side limit strips are mounted on the feeding channel side brackets via small shafts; the geared motor is fixed on the left support, and the torque is transmitted to the left half shaft through the motor gear and driven gear; a split coupling connects the left half shaft and the right half shaft, and the torque is transmitted to the next channel through a plum blossom coupling;

[0018] The dual-sided 8-channel continuous feeding mechanism adopts an 8-channel parallel feeding method; it uses a split coupling to connect the left and right half-shafts for transmission design, and when the split coupling is removed, the damaged conveyor belt can be easily replaced;

[0019] The bilateral 8-channel parallel double octet gate material feeding mechanism (for ease of description, the following description focuses on the first channel on the left in the 8-channel parallel double octet gate material feeding mechanism; the structures of the remaining channels are identical) includes: a base plate, a front support for the transverse material channel, a rear support for the transverse material channel, a T-shaped material channel, a Z-shaped material channel, an arc-shaped material bridge, a slide cylinder support, a slide cylinder, an L-shaped lever connecting rod, an L-shaped lever, an irregularly shaped material position lever, a proximity switch support, a proximity switch bracket, a proximity switch, and an octet gate logic terminal block, wherein:

[0020] The bottom plate of the dual-sided 8-channel parallel double-eight-channel material feeding mechanism is equipped with a front support and a rear support for the transverse material channel. A proximity switch is mounted on the side of the front support of the transverse material channel via a proximity switch bracket and a proximity switch support. A T-shaped material channel is mounted on the front support, and a Z-shaped material channel and an arc-shaped material bridge are mounted on the rear support. A slide cylinder is fixed to the rear support of the transverse material channel via a slide cylinder support. An L-shaped lever connecting rod is mounted on the slide cylinder, and eight L-shaped levers and irregularly shaped material position levers with eight channels are connected in parallel on the L-shaped lever connecting rod. The measured spindle is transmitted via... The conveyor belt passes through an arc-shaped material bridge, a T-shaped material channel, and a Z-shaped material channel. A sliding table cylinder, via an L-shaped lever connecting rod and an L-shaped lever, drives a shaped material positioning lever to the radial clamping mechanism. The shaped material positioning lever features a special wedge-shaped design on its side. During material feeding, its side acts as a door, closing the material inlet of the double-sided 8-channel continuous feeding mechanism. The measured spindle slips on the conveyor belt and is blocked by the side of the shaped material positioning lever. Eight proximity switches are connected to an octet logic terminal block, forming an octet proximity switch. Their outputs are sent to the corresponding input terminals of the PLC's stroke program and the automatic hopper control module.

[0021] The bilateral 8-channel parallel double-eight radial clamping mechanism (for ease of description, the following description focuses on the first channel on the left in the bilateral 8-channel parallel double-eight radial clamping mechanism; the remaining channels have identical structures) includes: a feed inlet bridge, a feed bridge swing arm, a feed bridge, a left side plate of the feed bridge, a right side plate of the feed bridge, a side limiting strip of the feed channel, a small shaft, a radial clamping V-block, a buffer spring, a radial push rod, a buffer chamber end cover, a radial push rod guide seat, a radial clamping cylinder, a radial clamping cylinder mounting seat, a mounting seat support, a radial clamping cylinder piston rod connector, a radial clamping linear guide, a radial clamping linear guide support, a connecting plate, a radial clamping connecting seat, a radial push rod connector, a frame upper panel, and a V-shaped positioning block, wherein:

[0022] The dual-sided 8-channel parallel double-eight radial clamping mechanism has the following features: a V-shaped positioning block is mounted on the upper plate of the frame; three radial clamping linear guides are fixed to the base plate via three radial clamping linear guide support seats; the radial push rod connectors of the 8 channels are connected to the connecting plates fixed on the radial clamping linear guides via corresponding 8 radial clamping connecting seats; the material inlet bridges of the 8 channels are mounted on the side of the upper part of the front support of the transverse material channel; two radial clamping cylinders are fixed to the left and right supports via radial clamping cylinder mounting seats and mounting seat supports; the piston rod connectors of the two radial clamping cylinders are connected to the radial clamping connecting seats of the corresponding second and sixth channels; the radial push rod guide seats are fixed on the side of the upper part of the rear support of the transverse material channel; a cylindrical buffer chamber is provided at the right end of the radial clamping V-block, and the end cover of the buffer chamber is fixed to the end face of the radial clamping V-block. The fixed connection, buffer spring and radial push rod head are loosely fitted in the cylindrical buffer chamber composed of buffer chamber end cover and radial clamping V-block; the right end of the radial push rod passes through the inner hole of the radial push rod guide seat and connects to the radial push rod connector; the material bridge swing arm is equipped with material bridge, material bridge left side plate and material bridge right side plate, and the material channel side limit strip is installed on the material bridge left side plate and material bridge right side plate through small shaft; the inner hole of the buffer chamber end cover, the inner hole of the radial push rod guide seat and the cross section of the radial push rod are rectangular; the two radial clamping cylinders drive the 8-channel radial clamping connecting seat, radial push rod connector, radial push rod, buffer chamber end cover, buffer spring and radial clamping V-block through the radial clamping cylinder piston rod connector, slide over the material port guide bridge and the material bridge, move longitudinally, and press against the V-shaped positioning block installed on the upper panel of the frame to realize the radial clamping and release of the spindle being measured;

[0023] The bilateral 8-channel double-octagon rotary cylinder spindle axial clamping mechanism (for ease of description, the following description focuses on the first channel on the left in the bilateral 8-channel double-octagon rotary cylinder spindle axial clamping mechanism; the remaining channels have the same structure) includes: a frame upper panel, a V-shaped positioning block, a 90° rotary clamping cylinder, the spindle to be measured, and a magnetic switch, wherein:

[0024] The dual-sided 8-channel double octagonal AND gate rotary cylinder spindle axial clamping mechanism consists of: a V-shaped positioning block mounted on the upper plate of the frame; a 90° rotary clamping cylinder fixed on the upper plate of the frame; the spindle being measured is radially positioned in the radial clamping V-shaped block and the V-shaped positioning block, and the axial end face of the spindle being measured is clamped on the upper end face of the V-shaped positioning block by the pressure head of the 90° rotary clamping cylinder; magnetic switches are attached to the 90° rotary clamping cylinder, and eight magnetic switches are connected to the octagonal AND gate logic terminal block to form an octagonal AND gate magnetic switch, the output of which is sent to the corresponding input terminal of the PLC of the PLC stroke program and the automatic hopper control module;

[0025] The air inlet of eight 90° rotating clamping cylinders on both sides is connected in parallel to a solenoid valve; the 90° rotating clamping cylinders are perpendicular to the direction of the force of the strip that drives the spindle to rotate and are located on the same side of the spindle.

[0026] The magnetic switches attached to the eight 90° rotary clamping cylinders on both sides constitute the PLC stroke program control logic conditions for the axial clamping mechanism of the spindle of the dual-side eight-channel double-octet rotary cylinder.

[0027] The double 5x stroke weight tension wheel pressurizing mechanism (for ease of description, the following description focuses on one axially symmetrical side of the double 5x stroke weight tension wheel pressurizing mechanism; the other axially symmetrical side has the same structure) includes: a V-shaped positioning block, a frame upper panel, a loading cylinder, a loading linear guide rail, a loading linear guide rail mounting base, a tension wheel, a bearing, a tension wheel shaft, a loading cylinder cylinder mounting base, a loading cylinder piston rod connector, a loading cylinder piston rod fixing base, a loading component mounting panel, a fixing wheel, a loading tension wheel, a loading tension wheel support plate, a weight linear guide rail, a weight support, a roller, a pin, a weight, a traction steel wire, a motor-driven spindle reel, and a spindle belt, wherein:

[0028] The double 5x stroke heavy hammer tension wheel pressurizing mechanism consists of: the spindle being tested fixed on a V-shaped positioning block; the loading component mounting panel connected to the upper panel of the frame via two loading linear guides and loading linear guide mounting seats; the loading cylinder fixed to the upper panel of the frame via a loading cylinder mounting seat; the loading cylinder piston rod connector connected to the loading component mounting panel via a loading cylinder piston rod fixing seat; five tension wheels, each equipped with double bearings, fixed to the loading component mounting panel by tension wheel shafts; six fixed wheels mounted on the right side of the upper panel of the frame, and two fixed wheels mounted on the left side of the upper panel of the frame near the motor-driven spindle belt disc; and five loading tension wheels mounted on a loading tension wheel support plate. The loading tension wheel support plate is connected to the upper panel of the frame via two counterweights and linear guide rails. The counterweight support is equipped with a pin and rollers. The counterweight support is fixed on the upper panel of the frame on the left side near the motor-driven spindle reel. One end of the traction steel wire is fixed to the loading tension wheel support plate, and the other end passes through the rollers to suspend the counterweights. The spindle, the motor-driven spindle reel, the fixed wheel near the left side of the motor-driven spindle reel, the five tension wheels fixed on the loading component mounting panel, the six fixed wheels on the right side of the upper panel of the frame, and the five loading tension wheels on the loading tension wheel support plate, under the action of the counterweights suspended in the air at the end of the traction steel wire, constitute a constant tension spindle drive pressurization mechanism.

[0029] Two adjacent tension wheels, two sets of tested spindles and the spindle belt constitute an externally tangential spindle drive mode;

[0030] The design consists of 5 sets of double-tangential structures, including 6 fixed wheels and 5 loading tension wheels, forming a double 5-times-stroke heavy hammer tension wheel pressurization mechanism. The extension length of the spindle belt is double 5 times the traction stroke of the heavy hammer.

[0031] The double-sided 8-channel material bridge corner and locking mechanism is equipped with a double-sided 8-channel material bridge corner mechanism and a material bridge corner locking mechanism;

[0032] The axis of the double-sided 8-channel material bridge corner mechanism is perpendicular to the axis of the material bridge corner mechanism;

[0033] The double-sided 8-channel material bridge corner mechanism (for ease of description, the following description focuses on one channel of the double-sided 8-channel material bridge corner mechanism; the remaining channels have identical structures) includes: a material bridge arm, a material bridge, a left side plate of the material bridge, a right side plate of the material bridge, a side limit strip of the material channel, a small shaft, a material bridge buffer shaft, a material bridge arm fixing sleeve, a material bridge buffer spring, a material bridge swing shaft, a key, a torsion buffer sleeve, a support for the material bridge swing shaft, a frame side plate, a rotary cylinder mounting bracket, a rotary cylinder coupling, a rotary cylinder, a rotary cylinder side bracket, and limit adjustment screws, wherein:

[0034] The double-sided 8-channel material bridge corner mechanism: the frame side plate is fixed to the left side of the frame upper panel; the rotary cylinder is fixed to the frame side plate via a rotary cylinder side bracket and a rotary cylinder mounting bracket; the material bridge swing shaft is fixed to the bottom of the frame upper panel by a support, and the material bridge swing shaft in its inner hole is connected to the rotary cylinder via a rotary cylinder coupling; the left and right material bridge swing arms are fixed to the two sides of the material bridge swing arm fixing sleeve that is loosely fitted on the material bridge swing shaft, and each of the left and right material bridge swing arms is equipped with a material bridge buffer shaft; left The two right torsion buffer sleeves are fixedly connected to the material bridge swing shaft with keys. The side of the torsion buffer sleeve has a fan-shaped groove, and the groove is filled with a material bridge buffer spring. The material bridge buffer spring presses against the material bridge buffer shaft installed on the side of the material bridge swing arm. The limit adjustment screw is installed under the upper panel of the frame and is used to adjust the relative position of the material bridge swing arm and the upper panel of the frame. The left and right material bridge swing arms are respectively equipped with a material bridge, a left material bridge plate, and a right material bridge plate. The two material channel side limit strips are installed on the left and right material bridge plates through small shafts.

[0035] The material bridge corner locking mechanism includes: a slide table, a locking cylinder, a locking cylinder piston rod joint, a locking cylinder piston rod fixing seat, a locking wedge block, and a rotary cylinder limit block, wherein:

[0036] The material bridge corner locking mechanism: the locking cylinder is fixed on the side of the slide table, the locking cylinder piston rod fixing seat is fixed on the locking inclined block in the slide table, and the locking cylinder piston rod joint is connected to the locking cylinder piston rod fixing seat. When the rotating cylinder rotates to the right to the set position, the locking cylinder drives the locking inclined block to the left to lock the rotating cylinder.

[0037] The bilateral 8-channel double-octane AND-door intelligent automatic hopper mechanism (for ease of description, the following description focuses on one channel of the bilateral 8-channel double-octane AND-door intelligent automatic hopper mechanism; the structures of the remaining channels are identical) includes: a linear guide mounting base for material unloading, a proximity switch support, a left unloading baffle, a right unloading baffle, a left hopper slide, a right hopper slide, a hopper door, a tilting cylinder, and a magnetic switch, wherein:

[0038] The dual-sided 8-channel dual-octane gate intelligent automatic hopper mechanism has the following components: a left unloading baffle fixed to the side of the linear guide mounting base for unloading; a right unloading baffle fixed to the side of the proximity switch support; the left and right hopper slides are arranged at 90°, with the left slide for qualified products and the right slide for unqualified products; a tilting cylinder equipped with a hopper door is fixed at the intersection of the left and right hopper slides, and the tilting cylinder drives the hopper door to open either the left hopper slide (qualified product channel) or the right hopper slide (unqualified product channel); magnetic switches are attached to the tilting cylinder, and eight magnetic switches are connected to an octane gate logic terminal block to form an octane gate magnetic switch, whose output is sent to the PLC stroke program and the corresponding input terminal of the PLC of the automatic hopper control module;

[0039] The left and right hopper slides are arranged at 90°. The hopper door on the tilting cylinder rotates 90°. Before and after the hopper door rotates, it is in contact with the plane of the left and right hopper slides respectively.

[0040] The magnetic switches attached to the eight dual-sided tilting cylinders constitute the PLC stroke program control logic conditions for the dual-sided eight-channel double-eight AND gate intelligent automatic silo mechanism.

[0041] The dual-sided 8-channel automatic unloading mechanism includes: a frame upper panel, an unloading cylinder irregular-shaped base, an unloading cylinder, an unloading guide rail connecting rod, an unloading cylinder piston rod connector, an unloading cylinder piston rod fixing seat, an unloading cylinder cylinder mounting seat, an unloading connecting rod, an unloading push rod, an unloading linear guide rail, and an unloading linear guide rail mounting seat, wherein:

[0042] The dual-sided 8-channel automatic unloading mechanism consists of two unloading cylinders fixed to the center of the upper panel of the frame via unloading cylinder mounting seats and irregularly shaped bases; two unloading linear guides fixed to both sides of the upper panel of the frame via unloading linear guide mounting seats; unloading guide connecting rods fixed to the two unloading linear guides, which are connected to four unloading push rods via four unloading connecting rods fixed on them; the front ends of the unloading push rods are U-shaped and located on the sides of two adjacent test spindles; and the piston rod connectors of the two unloading cylinders are connected to the piston rod fixing seats of the unloading cylinders fixed on the unloading connecting rods.

[0043] The 8-channel digital intelligent spindle vibration characteristic online detector module includes: an 8-channel digital intelligent spindle vibration characteristic online detector, a front panel, a rear panel, an intelligent over-limit alarm and sensitivity status display circuit, and a dual-sided 8-channel vibration sensor installation and adjustment section, wherein:

[0044] The 8-channel digital intelligent spindle vibration characteristic online detector includes: an eddy current sensor, an 8-channel signal conditioning circuit, an 8-channel AD conversion module, an OLED display module, a speed measurement level conversion module, a microcontroller data acquisition module, an alarm limit setting key, a sensitivity selection key, a vibration / speed measurement screen switching key, a 485 communication module, and an intelligent over-limit alarm and sensitivity status display circuit, wherein:

[0045] The 8-channel digital intelligent spindle vibration characteristic online detector: the preamplifier of the eddy current sensor is connected to the input terminal of the 8-channel signal conditioning circuit; the output terminal of the 8-channel signal conditioning circuit is connected to the input terminal of the 8-channel AD conversion module, which is composed of AD7606 and its auxiliary circuits; the output terminal of the 8-channel AD conversion module is connected to the corresponding P0 and P2 ports of the microcontroller; the OLED display module is connected to the corresponding P1 port of the microcontroller; the output signal of the CH2 channel of the fiber optic amplifier is sent to the P3^2 port (interrupt port INT0) of the microcontroller via the speed measurement level conversion module; the microcontroller data acquisition module sends the sampled and processed data to the OLED display module for display, and sends the data for processing via the 485 bus. The system includes a display and file storage module; an alarm limit setting key connected to the microcontroller's P4^0 port, whose value is stored in the microcontroller's ROM for later recall upon next power-on; a sensitivity selection key connected to the microcontroller's P4^1 port, whose value is pre-programmed based on the material of the spindle being measured, and whose selected value is stored in the microcontroller's ROM for later recall upon next power-on; a vibration / velocity measurement screen switching key connected to the microcontroller's P4^3 port for selecting the vibration / velocity measurement screen on the OLED display module; a 485 communication module connected to the microcontroller's serial port, with the microcontroller's P1^7 port configured as the direction control port for 485 half-duplex communication; and an intelligent over-limit alarm and sensitivity status display circuit connected to the corresponding P3 and P4 ports of the microcontroller.

[0046] The microcontroller is equipped with a dedicated subroutine for processing the true peak value of spindle vibration, an amplitude over-limit alarm subroutine, an alarm limit setting and sensitivity selection subroutine, an amplitude / velocity screen switching subroutine, a sensitivity key value and alarm key value storage and automatic recall subroutine, an OLED display subroutine, and an RS485-Modbus / RTU communication subroutine, and has complete intelligent instrument functions.

[0047] The pulse width method is used to measure the spindle speed under test; the OS0, OS1, and OS2 of AD7606 are set to 010, and the four-fold oversampling mode is used, that is, the hardware internally collects four samples and calculates the average value.

[0048] The microcontroller data acquisition module is equipped with a true peak-to-peak value processing program. According to the sampling theorem, the sampling frequency, the number of sampling points (2N sampling points, where N≥10) and the sampling interval are set. The average sampled data of the 8 channels of AD7606 with four times oversampling are sorted from largest to smallest. Peak values ​​are removed (one maximum value and one minimum value are removed). The remaining five maximum values ​​and five minimum values ​​are taken and subtracted to obtain the five peak-to-peak values. The average value is taken as the peak-to-peak value of the measurement point of the channel.

[0049] The intelligent over-limit alarm and sensitivity status display circuit adopts a single-chip microcomputer port to drive the transistor to conduct or not, handle the sensitivity selection result, and judge the two states of the eight channels of tested spindles: whether they are qualified or not, and whether an alarm is triggered. This design effectively reduces the number of single-chip microcomputer ports occupied.

[0050] The front panel includes: an OLED display screen, a sensitivity selection button, an alarm limit setting button, a vibration / velocity measurement screen switching button, dual-color LED lights, a communication status light, and a sensitivity status light, wherein:

[0051] The front panel features an OLED display screen, specifically a 2.7GHz SPI serial port 12864 OLED screen connected to the corresponding P1 port of the microcontroller; a red-yellow-green 3-key membrane keyboard is used for the sensitivity selection key, alarm limit setting key, and vibration / velocity measurement screen switching key. The sensitivity selection key is connected to the microcontroller's P4^1 port, the alarm limit setting key to the microcontroller's P4^0 port, and the vibration / velocity measurement screen switching key to the microcontroller's P4^3 port; dual-color LEDs correspond to the over-limit alarm status of the corresponding channel, with green indicating compliance and red indicating an over-limit alarm; the sensitivity status light corresponds to the material of the tested spindle, with green for steel and red for aluminum; and the communication status light is connected to the microcontroller's serial port P3^0 (RXD).

[0052] The rear panel includes: a vibration sensor signal input socket, a speed signal input socket, an alarm signal output, a 485 communication interface, and a USB communication interface, wherein:

[0053] The rear panel features: a vibration sensor signal input socket using a 4-pin aviation connector to connect to the corresponding channel eddy current sensor; a speed signal input socket using a 4-pin aviation connector to connect to the output signal of the E3X-fiber optic speed sensor; an alarm signal output using a 10-pin aviation connector to connect to the corresponding channel input of the PLC stroke program and automatic hopper control module; a 485 communication interface using a 4-pin aviation connector to connect to the 485 bus; and a USB communication interface using a Type A female connector, which connects to the microcontroller via a CH340T USB-to-serial module, enabling standalone communication with a host computer.

[0054] The intelligent over-limit alarm and sensitivity status display circuit includes: a dual-color LED, a transistor, a sensitivity status LED, and a microcontroller port, wherein:

[0055] The intelligent over-limit alarm and sensitivity status display circuit is as follows: The dual-color LED red light and the transistor base are connected to the corresponding channel ports of the microcontroller's P3 and P4 ports. When the corresponding port outputs a low level, the transistor is cut off, the green light is off, and the red light is on, indicating an alarm for that channel. The dual-color LED green light is connected to the collector output terminal of the transistor driven by the corresponding channel port of the microcontroller's P3 and P4 ports. When the corresponding port outputs a high level, the red light is off, the transistor is on, the collector outputs a low level, and the green light is on, indicating a pass for that channel. The sensitivity status light green light and the transistor base are connected to the microcontroller's P4^2 port. The sensitivity status light red light is connected to the transistor collector. When the P4^2 port outputs a low level, the transistor is cut off, the red light is off, and the green light is on, indicating a sensitivity status of steel. When the P4^2 port outputs a high level, the transistor is on, the green light is off, and the red light is on, indicating a sensitivity status of aluminum.

[0056] The dual-sided 8-channel vibration sensor installation and adjustment section (for ease of description, the following description focuses on one channel of the dual-sided 8-channel vibration sensor installation and adjustment section; the remaining channels have identical structures) includes: an eddy current sensor, a bushing, a pin, a locking block, a locking button, a sensor base, a locking column, a locking nut, a crossbeam, a convex arc-shaped key, a support column, a support column sleeve, a round nut, a nut, a screw, a screw, and a frame top panel, wherein:

[0057] The dual-sided 8-channel vibration sensor installation and adjustment section includes: an eddy current sensor fixed to the inner hole of a bushing with a nut; a convex arc-shaped key in the upper hole of the sensor base, and an axial U-shaped groove in the lower part of the bushing, allowing the bushing with the eddy current sensor to slide back and forth along the convex arc-shaped key; a pin is fixed to the top of the sensor base, and a locking button (an eccentric wheel) can rotate on the pin; the upper part of the bushing has an axial U-shaped groove; rotating the locking button downwards fixes the bushing with the eddy current sensor to the sensor base via the locking block; the position of the bushing relative to the sensor base can be quickly adjusted. The measurement gap between the eddy current sensor and the spindle being measured; the lower part of the sensor base has a through hole perpendicular to the axis of the upper hole of the sensor base, and a crossbeam is installed in the hole. The through hole has a blind hole parallel to the axis of the upper hole of the sensor base. The locking pin is installed on the crossbeam in the blind hole. By rotating the locking nut, the sensor base can be locked onto the crossbeam; the crossbeam is fixed to the support sleeve with screws; the support is fixed to the top plate of the frame, and the support sleeve is loosely fitted on the support and locked with screws. The height of the support sleeve can be adjusted by the round nut, thereby adjusting the measurement height of the eddy current sensor relative to the spindle being measured;

[0058] The eddy current sensor can be quickly adjusted in four degrees of freedom: height relative to the spatial coordinates of the measured spindle, front-back position measurement gap, left-right position center alignment, and pitch angle.

[0059] The PLC stroke program and automatic hopper control module includes: an HMI (Human Machine Interface), a PLC stroke program and automatic hopper control execution unit, and a mechanical motion execution module containing: a geared motor, proximity switch, slide cylinder, radial clamping cylinder, 90° rotary clamping cylinder, loading cylinder, rotary cylinder, locking cylinder, tilting cylinder, unloading cylinder, and an octa-AND gate logic terminal block. The 8-channel digital intelligent spindle vibration characteristic online detector outputs an alarm signal.

[0060] The slide cylinder, radial clamping cylinder, 90° rotary clamping cylinder, loading cylinder, rotary cylinder, locking cylinder, tilting cylinder, and unloading cylinder are all magnetic cylinders with magnets and magnetic switches.

[0061] The PLC stroke program and automatic hopper control module: The HMI (Human Machine Interface) is equipped with adjustment, operation, and alarm function screens according to engineering requirements and is connected to the PLC; The PLC stroke program and automatic hopper control execution unit, through the PLC stroke program, PLC input terminal proximity switches, octet logic terminal block, magnetic switches, etc., controls the operation of PLC output terminal indicator lights, alarm lights, buzzers, contactors, solenoid valves, etc., so that the slide cylinder, radial clamping cylinder, 90° rotation clamping cylinder, loading cylinder, rotation cylinder, locking cylinder, tilting cylinder, and unloading cylinder complete the prescribed actions according to the program. Based on input / output and function conversion conditions, the system operates in a cyclical manner according to the following actions: Start - Geared motor runs, dual-sided 8-channel continuous feeding - octagonal proximity switch - feeding mechanism slide cylinder feeding - magnetic switch - radial clamping cylinder clamping - magnetic switch - 90° rotary clamping cylinder axial clamping - octagonal magnetic switch - loading cylinder loading - magnetic switch - 8-channel digital intelligent spindle vibration characteristic online detector alarm signal output - dual-sided 8-channel double octagonal intelligent automatic hopper tilting cylinder opens the corresponding hopper door - octagonal magnetic switch - loading cylinder unloading return - magnetic switch - 90° rotary clamping cylinder return The process involves: radial clamping cylinder return - magnetic switch - locking cylinder unlock - magnetic switch - rotary cylinder lowering the material bridge - magnetic switch - material ejection cylinder ejecting - magnetic switch - double-sided 8-channel dual-eight-door intelligent automatic hopper flipping cylinder reset - magnetic switch - material ejection cylinder return - magnetic switch - rotary cylinder return lifting the material bridge - magnetic switch - locking cylinder return locking - magnetic switch - material feeding mechanism slide cylinder return - one cycle ends and starts again; when a certain conversion condition is not met, such as a material shortage in a certain channel of the 8-channel continuous feeding mechanism or mechanical failure jamming, a light alarm will be triggered within the rated time, and operation will resume after handling.

[0062] The spindle drive control speed measurement module includes: an HMI (Human Machine Interface), a PLC, a frequency converter, a frequency converter motor, a motor-driven spindle reel, an E3X-fiber optic speed sensor, a reflected light spot, a fiber optic sensor, a fiber optic amplifier, an output signal, and a schematic diagram of the fiber optic amplifier.

[0063] The spindle drive control speed measurement module: The HMI human-machine interface program controls the frequency converter, frequency conversion motor, and motor-driven spindle belt reel to rotate the spindle under test; the spindle under test is painted with a reflective light spot by a marker pen, and the reflective fiber optic signal is sent to the fiber optic amplifier for processing through the fiber optic sensor. The fiber optic amplifier has a light reception threshold function. The light spot of the spindle under test and the reflection from the surface of the spindle under test generate a pulse signal with varying light reception brightness. As can be seen from the schematic diagram of the fiber optic amplifier: the fiber optic amplifier outputs a signal to the PLC through the CH1 channel. The PLC calculates the number of pulses per unit time and sends it to the HMI human-machine interface to convert it into the rotational speed of the spindle under test.

[0064] The spindle temperature detection module includes: an 8-channel spindle temperature detector, a temperature sensor plug, an OLED spindle temperature display, and a 485 communication interface for the temperature detector.

[0065] The spindle temperature detection module: The DS18B20 digital temperature sensor is connected to the 8-channel spindle temperature detector via the sensor plug of the thermometer, and sends the data to the OLED spindle temperature display. The data is also sent to the host computer PYTHON application for processing, display and file storage via the thermometer's 485 communication interface and 485 bus.

[0066] The data processing, display, and file storage module includes: a 485 communication interface, RS485-Modbus / RTU serial communication protocol, and a Python application (for ease of description, the following description uses the eight-channel vibration characteristic line graph of the host computer as an example): communication parameter setting area, current communication device address, automatic serial port number scanning button, open and close serial port switching button, start and stop acquisition switching button, serial port status monitoring, data transmission monitoring window, data reception monitoring window, current communication device channel number, current channel amplitude real-time value, current channel amplitude moving average, current channel amplitude standard deviation, and current channel amplitude real-time waveform; wherein:

[0067] The data processing, display, and file storage module has the following features: a 485 communication interface connected to an RS485 bus; a Python application acting as the host, sending read and write commands to the bus via the RS485-Modbus / RTU communication protocol; a communication parameter setting area for setting communication parameters such as serial port number, parity bit, stop bit, baud rate, data bits, and sampling period; a current communication device address for selecting the address of the communication device; an automatic serial port number scanning button for automatically scanning the serial port number in the communication parameter setting area; an open / close serial port toggle button for opening and closing the serial port; and a start / stop acquisition toggle button for sending read and write commands to the bus. Send and stop sending commands; serial port status monitoring displays whether sending and receiving are normal; the send data monitoring window displays sent data (hexadecimal); the receive data monitoring window displays received data (hexadecimal); the current communication device channel number displays the channel number of the current real-time data and graph; the current channel amplitude real-time value displays the real-time amplitude value of a certain channel of the current communication device read from the bus; the current channel amplitude moving average displays the current channel amplitude moving average value from the host computer; the current channel amplitude standard deviation displays the current amplitude standard deviation from the host computer; the current channel amplitude real-time waveform displays the current channel time-amplitude curve.

[0068] The data processing, display, and file storage modules provide real-time time-amplitude curves, current amplitude value, moving average, and standard deviation display records for each networked device; real-time time-temperature rise curves, current temperature value, moving average, and standard deviation display records; real-time time-amplitude and time-temperature rise composite curves display records; and real-time spindle speed-amplitude curves, current amplitude value, moving average, and standard deviation display records for all networked devices.

[0069] The beneficial effects of this invention are: The eddy current vibration displacement sensor has high accuracy: the sensor's mv / μm equivalent value has been improved from 1mv / 1μm to 10mv / 1μm, an improvement of one order of magnitude; the sensor has good adaptability and is not affected by environmental noise, light intensity, dust, oil mist, seasons and other factors. It adopts an eddy current vibration displacement sensor and an AD7606 module with 8 channels, 16 bits, SPI serial communication, and a sampling rate of 200KSPS. With 4x oversampling mode, it has high testing accuracy. When the test amplitude range is 0-2mm, the OLED screen display resolution is 0.1μm (four rows and two columns, eight channels, five significant digits), and the host computer can reach 7 significant digits, with three decimal places after μm. The spindle's test operating speed is designed to be up to 35,000 rpm, the frequency resolution of the variable frequency motor is 0.01 Hz, the speed control accuracy of the variable frequency motor is 0.01% under the nominal 100 Hz condition of the variable frequency drive, and the speed measurement accuracy of the laser speed sensor is 0.5‰, which can meet the needs of high-speed and ultra-high-speed spindle speed measurement range and test accuracy. It has a vibration displacement sensor sensitivity setting function. For sensors with different sensitivities, different sensitivity coefficients (i.e., millivolts / displacement equivalent value) can be set in the microcontroller program through software, so that the sensors can be used as standard parts for pre-calibrating their respective sensitivities. The sensors can be calibrated offline or quickly installed on site. The 8-channel digital intelligent spindle vibration characteristic online detector features digital display, intelligent over-limit alarm, and standalone offline and network operation functions. The microcontroller is equipped with dedicated subroutines for spindle vibration true peak value processing, amplitude over-limit alarm, alarm limit setting and sensitivity selection, amplitude / velocity screen switching, sensitivity key value and alarm key value storage and automatic recall, OLED display, and RS485-Modbus / RTU communication, providing complete intelligent instrument functions. The 8-channel digital intelligent spindle vibration characteristic online detector has a powerful real-time sampling function: the OLED screen refresh time is 300ms, which is the same as the microcontroller sampling interval time of 300ms. During this sampling interval, the AD7606 module and the microcontroller simultaneously complete 1280 (4×40×8, i.e., 4 times oversampling, 40 sampling points, 8 channels) 16-bit amplitude data sampling. The data from the 8 channels are queued, and peak values ​​are removed (one maximum value and one minimum value are removed). The remaining 5 maximum values ​​and 5 minimum values ​​are selected, and the corresponding values ​​are subtracted to obtain 5 peak-to-peak values. The average of these values ​​is taken as the peak-to-peak value of each channel at that measurement moment. The data is sent to the OLED display via the analog SPI port and communicates with the host computer via the 485 bus via the serial port. The host computer is programmed using Python, a language with powerful scientific computing, statistical analysis, and graphics processing capabilities. It can provide networked devices with: real-time time-amplitude curves in the time domain, displaying and recording the current amplitude value, moving average, and standard deviation; real-time time-temperature rise curves in the time domain, displaying and recording the current temperature value, moving average, and standard deviation; real-time time-amplitude and time-temperature rise composite curves in the time domain; and real-time ingot speed-amplitude curves in the frequency domain, displaying and recording the current amplitude value, moving average, and standard deviation. High degree of automation: It has process program control, audible and visual alarm for functional abnormalities, and automatic sorting function for qualified and unqualified products; High work efficiency: The original 60-spindle equipment was operated by 4 people per unit, with a work cycle of 120-150 seconds. The workers were almost in a continuous working state, and the production cycle was 2-2.5 seconds. However, the equipment of the present invention with a set of double eight channels and 16 tested spindles can be operated by 1 person, with a work cycle of 30-40 seconds, and the production cycle can still be less than 2.5 seconds. Small footprint: A set of dual eight-channel equipment with 16 tested spindles occupies approximately 0.45 times the area of ​​the original 60-spindle equipment; Labor saving and reduced labor intensity: The number of workers required to operate each piece of equipment is reduced from 4 to 1, and the number of workers required to operate three pieces of equipment in two shifts (24 people) can be reduced to 6, saving 18 workers. Operators only need to load materials, effectively reducing labor intensity. Short investment payback period: Based on data from listed companies in the textile industry in 2021, the average annual salary in the textile manufacturing industry is 31,600 yuan. The investment required for a set of double eight-channel equipment with 16 tested spindles can be recovered by saving the salary of three people for one year, that is, the investment payback period is about 1 year. Achieve: Traceability of past data; records and queryability of quality fluctuations in the production process; digitalization of detection and storage; graphical representation of the testing process; intelligent sorting; automated production; and convenient distributed networking. Attached Figure Description

[0070] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below.

[0071] Figure 1 This is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system disclosed in an embodiment of the present invention.

[0072] Figure 2 Install and adjust the components for the dual-sided 8-channel vibration sensor.

[0073] Figure 3 This is an assembly drawing of a dual-sided 8-channel parallel double-eight-channel feeding, feeding, and radial clamping mechanism.

[0074] Figure 4 This is a structural diagram of a dual-sided 8-channel continuous feeding mechanism. Figure 3 Sectional view of AA.

[0075] Figure 5 This is a structural diagram of a dual-sided 8-channel parallel double-eight-channel material feeding and radial clamping mechanism. Figure 3 BB section view, Figure 5 In the middle, I is a magnified view of a portion of the figure.

[0076] Figure 6 for Figure 4 CC section view.

[0077] Figure 7 This is an assembly drawing of the spindle axial clamping, tension wheel pressurization, and unloading mechanism.

[0078] Figure 8 This is a structural diagram of a double-sided 8-channel dual-eight-gate rotary cylinder spindle axial clamping mechanism. Figure 7 EE section view.

[0079] Figure 9Here is a structural diagram of the tension wheel pressurization mechanism. Figure 7 Cross-sectional view of KK.

[0080] Figure 10 This is a structural diagram of a bilateral 8-channel automatic material unloading mechanism. Figure 7 MM section view.

[0081] Figure 11 This is a structural diagram of a bilateral 8-channel automatic material unloading mechanism. Figure 7 NN cross-sectional view.

[0082] Figure 12 This is a structural diagram of the double 5x stroke heavy hammer tension wheel pressurization mechanism. Figure 7 A magnified view of a portion of the image.

[0083] Figure 13 This is a structural diagram of the corner mechanism of a double-sided 8-channel material bridge. Figure 13 II in the middle is a magnified view of a portion of the figure.

[0084] Figure 14 This is a structural diagram of the corner locking mechanism of the material bridge. Figure 13 View from the center (K ​​direction).

[0085] Figure 15 This is a structural diagram of a dual-sided 8-channel, double-eight-door intelligent automatic silo mechanism.

[0086] Figure 16 This is a schematic diagram of an 8-channel digital intelligent spindle vibration characteristic online detector.

[0087] Figure 17 For intelligent over-limit alarm and sensitivity status display circuit, Figure 16 An enlarged view of the schematic diagram of component 145.

[0088] Figure 18 It is an E3X-fiber optic speed sensor.

[0089] Figure 19 This is the back panel.

[0090] Figure 20 For the front panel.

[0091] Figure 21 8-channel spindle temperature detector

[0092] Figure 22 This is a line graph showing the vibration characteristics of the host computer's eight-channel time domain. Detailed Implementation

[0093] The technical solutions of the present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0094] This invention provides a specialized equipment system—a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system—that employs various modern mechatronics digital intelligent automatic control technologies for dynamic vibration testing, intelligent sorting, spectrum analysis, process control, and information storage in the field of spindle production and manufacturing online testing and control, as well as spindle R&D and design. It enables real-time on-site monitoring to meet the needs of digitalization, intelligence, automation, high efficiency, reduced labor intensity, and manpower savings in the manufacturing process.

[0095] Figure 1 The diagram illustrates a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system, which consists of interconnected "multi-channel digital intelligent spindle vibration characteristic online detection subsystems." The following description details each subsystem component, including:

[0096] The system comprises: 1. Mechanical motion execution module; 2. 8-channel digital intelligent spindle vibration characteristic online detector module; 3. PLC stroke program and automatic hopper control module; 4. Spindle drive control and speed measurement module; 5. Spindle temperature detection module; and 6. Data processing, display, and file storage module.

[0097] The mechanical motion execution module 1 is equipped with a double-sided 8-channel parallel double-octane gate feeding, feeding, and radial clamping mechanism; a double-sided 8-channel double-octane gate rotary cylinder spindle axial pressing mechanism; a double 5x stroke heavy hammer tension wheel pressurizing mechanism; a double-sided 8-channel material bridge cornering and locking mechanism; a double-sided 8-channel double-octane gate intelligent automatic hopper mechanism; and a double-sided 8-channel automatic material unloading mechanism.

[0098] The double-sided 8-channel parallel double-eight-and-door feeding, feeding, and radial clamping mechanism; the double-sided 8-channel double-eight-and-door rotary cylinder spindle axial pressing mechanism; the double 5-times stroke heavy hammer tension wheel pressurizing mechanism; the double-sided 8-channel material bridge cornering and locking mechanism; the double-sided 8-channel double-eight-and-door intelligent automatic hopper mechanism; and the double-sided 8-channel automatic unloading mechanism are symmetrically arranged along the longitudinal axis of the mechanical motion execution module.

[0099] The bilateral 8-channel parallel double octave AND gate feeding, feeding, and radial clamping mechanism is equipped with a bilateral 8-channel continuous feeding mechanism and a bilateral 8-channel parallel double octave AND gate feeding and radial clamping mechanism.

[0100] The axis of the double-sided 8-channel continuous feeding mechanism is perpendicular to the axis of the double-sided 8-channel parallel double-eight-channel feeding mechanism and parallel to the axis of the radial clamping mechanism;

[0101] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 3 The diagram shown is an assembly drawing of a dual-sided 8-channel parallel double octave gate feeding, feeding, and radial clamping mechanism. Figure 4 The diagram shows the structure of the dual-sided 8-channel continuous feeding mechanism. Figure 3 (Cross-sectional view of AA) Figure 6 shown Figure 4 A sectional view of the middle CC section, wherein:

[0102] The bottom plate 018 of the double-sided 8-channel continuous feeding mechanism is equipped with a left support 019 and a right support 020. Aluminum profile conveyor belt supports 040 are mounted on both sides of these supports. A front support 031 is mounted at the front end of the aluminum profile conveyor belt support 040, and a front fixed wheel 030 is mounted on the front support 031 via a front fixed wheel axle 032. A rear support 034 is mounted at the rear end of the aluminum profile conveyor belt support 040, and a rear fixed wheel 033 is mounted on the rear support 034 via a rear fixed wheel axle 035. Casters 036 are mounted on the left support 019 and right support 020 via caster axles 037. A tension wheel 038 is mounted in a long slot on the left support 019 and right support 020, allowing the tension wheel 038 to slide back and forth. The left half-shaft 024 is mounted on the left support 019 via a left bearing 026, and the right half-shaft 025 is mounted on the right bearing 027. 27 is mounted on the right support 020; two conveyor belts 039 are laid flat between the upper and lower planes of the aluminum profile conveyor belt bracket 040 via the front fixed wheel 030, the rear fixed wheel 033, the support caster 036, the left half shaft 024, the right half shaft 025, and the tension wheel 038, and the tension of the conveyor belts 039 is adjusted by the tension wheel 038; two feed channel side brackets 041 are mounted on the aluminum profile conveyor belt bracket 040, and the feed channel side limit strip 042 is mounted on the feed channel side bracket 041 via the small shaft 055; the geared motor 021 is fixed on the left support 019, and the torque is transmitted to the left half shaft 024 through the motor gear 022 and the driven gear 023; the split coupling 028 connects the left half shaft 024 and the right half shaft 025, and the torque is transmitted to the next channel through the plum blossom coupling 029;

[0103] The dual-sided 8-channel continuous feeding mechanism adopts an 8-channel parallel feeding method; it uses a split coupling to connect the left and right half-shafts for transmission design, and when the split coupling is removed, the damaged conveyor belt can be easily replaced;

[0104] During operation, the geared motor 021 rotates and transmits torque to the left half-shaft 024, the split coupling 028, and the right half-shaft 025 through the motor gear 022 and the driven gear 023. One path (horizontal direction) transmits torque to the next channel through the plum blossom coupling 029; the other path (vertical direction) continuously feeds the spindle 001 to be tested through the left half-shaft 024, the right half-shaft 025, the rear fixed wheel 033, the tension wheel 038, the support caster 036, the front fixed wheel 030, and the conveyor belt 039.

[0105] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 3The diagram shown is an assembly drawing of a dual-sided 8-channel parallel double octave gate feeding, feeding, and radial clamping mechanism. Figure 4 The diagram shows the structure of the dual-sided 8-channel continuous feeding mechanism. Figure 3 (Cross-sectional view of AA) Figure 5 The diagram shows the structure of the bilateral 8-channel parallel double 8-channel material feeding and radial clamping mechanism. Figure 3 (Cross-section view of BB) Figure 5 A magnified view of a portion of the image, in which:

[0106] The bottom plate 018 of the double-sided 8-channel parallel double-eight-door material feeding mechanism is equipped with a transverse material channel front support 043 and a transverse material channel rear support 044; the proximity switch 054 is installed on the side of the transverse material channel front support 043 through the proximity switch bracket 053 and the proximity switch support 052. The transverse material channel front support 043 is equipped with a T-shaped material channel 050, and the transverse material channel rear support 044 is equipped with a Z-shaped material channel 051 and an arc-shaped material bridge 049; the slide cylinder 046 is fixed to the bottom of the transverse material channel rear support 044 through the slide cylinder support 045. The slide cylinder 046 is equipped with an L-shaped lever connecting rod 066, and the L-shaped lever connecting rod 066 is equipped with 8 channels of L-shaped levers 047 and irregular material position levers 048 in parallel.

[0107] During operation, the tested spindle 001 is conveyed via conveyor belt 039 through arc-shaped material bridge 049, T-shaped material channel 050, and Z-shaped material channel 051. It is then driven by slide cylinder 046 via L-shaped lever connecting rod 066 and L-shaped lever 047 to the irregularly shaped material level lever 048, which is then fed to the radial clamping mechanism. The irregularly shaped material level lever 048 features a special wedge-shaped design on its side. During material feeding, its side acts as a sliding door, closing the material inlet of the double-sided 8-channel continuous feeding mechanism. The tested spindle 001 slips on conveyor belt 039 and is blocked on the side of the irregularly shaped material level lever 048. Eight proximity switches are connected to an octet logic terminal block, forming an octet proximity switch. Its output is sent to the corresponding input terminals of the PLC's stroke program and automatic hopper control module.

[0108] The two-sided eight proximity switches constitute the two-sided eight-channel parallel double eight-AND gate feeding mechanism PLC stroke program control logic condition. The PLC stroke program transfer condition is formed when all eight channels of the two-sided proximity switches detect the signal of the measured spindle, and the slide cylinder works.

[0109] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 3 The diagram shown is an assembly drawing of a dual-sided 8-channel parallel double octave gate feeding, feeding, and radial clamping mechanism. Figure 5 The diagram shows the structure of the bilateral 8-channel parallel double 8-channel material feeding and radial clamping mechanism. Figure 3 (Cross-section view of BB) Figure 5Enlarged view of part I in the middle. Figure 7 The diagram shows the assembly of the spindle axial clamping, tension wheel pressurization, and unloading mechanism. Figure 8 The diagram shows the structure of the double-sided 8-channel dual-eight-gate rotary cylinder spindle axial pressing mechanism. Figure 7 (EE section view), Figure 13 The diagram shown is of a double-sided 8-channel material bridge corner mechanism. Figure 13 Partial enlarged view in section II, where:

[0110] The dual-sided 8-channel parallel double-eight radial clamping mechanism includes: a V-shaped positioning block 072 mounted on the upper panel 073 of the frame; three radial clamping linear guides 067 fixed to the base plate 018 via three radial clamping linear guide supports 068; the radial push rod connectors 071 of the 8 channels connected to the connecting plate 069 fixed on the radial clamping linear guides 068 via the corresponding 8 radial clamping connecting seats 070; the material inlet bridge 056 of the 8 channels mounted on the side of the upper part of the transverse material channel front support 043; two radial clamping cylinders 062 fixed to the left support 019 and right support 020 via radial clamping cylinder mounting seats 063 and mounting seat supports 064; the piston rod connectors 065 of the two radial clamping cylinders connected to the corresponding radial clamping connecting seats 070 of the second and sixth channels; and radial push rod guides. The seat 061 is fixed to the side of the upper part of the rear support 044 of the transverse material channel; the right end of the radial clamping V-block 057 is provided with a cylindrical buffer chamber, the end cover 060 of the buffer chamber is fixedly connected to the end face of the radial clamping V-block 057, and the heads of the buffer spring 058 and the radial push rod 059 are loosely fitted in the cylindrical buffer chamber formed by the end cover 060 of the buffer chamber and the radial clamping V-block 057; the right end of the radial push rod 059 passes through the inner hole of the radial push rod guide seat 061 and is connected to the radial push rod connector 071; the material bridge swing arm 106 is equipped with a material bridge 107, a left side plate 108 of the material bridge, and a right side plate 109 of the material bridge, and the side limiting strip 110 of the material channel is installed on the left side plate 108 and the right side plate 109 of the material bridge through a small shaft 111; the inner hole of the buffer chamber end cover 060, the inner hole of the radial push rod guide seat 061, and the cross section of the radial push rod 059 are rectangular.

[0111] During operation, two radial clamping cylinders 062 drive the eight-channel radial clamping connecting seat 070, radial push rod connecting head 071, radial push rod 059, buffer chamber end cover 060, buffer spring 058, and radial clamping V-block 057 through the radial clamping cylinder piston rod connector 065. This pushes the spindle 001 to be tested to slide over the material inlet guide bridge 056 and the material bridge 107, move longitudinally, and press against the V-shaped positioning block 072 mounted on the upper panel 073 of the frame, thereby achieving radial clamping of the spindle to be tested.

[0112] The radial clamping mechanism is equipped with a spindle radial clamping buffer device. The hole in the buffer chamber end cover is rectangular, the head of the radial push rod is cylindrical, and the rear is rectangular, which plays the role of radial clamping buffer and axial guidance.

[0113] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 7 The diagram shows the assembly of the spindle axial clamping, tension wheel pressurization, and unloading mechanism. Figure 8 The diagram shows the structure of the double-sided 8-channel dual-eight-gate rotary cylinder spindle axial pressing mechanism. Figure 7 (EE section view), where:

[0114] The dual-sided 8-channel double octagonal AND gate rotary cylinder spindle axial pressing mechanism has the following features: a V-shaped positioning block 072 is mounted on the upper panel 073 of the frame; a 90° rotary pressing cylinder 074 is fixed on the upper panel 073 of the frame; magnetic switches are attached to the 90° rotary pressing cylinder 074; eight magnetic switches are connected to the octagonal AND gate logic terminal block to form an octagonal AND gate magnetic switch, the output of which is sent to the corresponding input terminal of the PLC of the PLC for the PLC stroke program and the automatic hopper control module; the air inlet of the eight dual-sided 90° rotary pressing cylinders is connected in parallel to a solenoid valve.

[0115] During operation, the tested spindle 001 is radially positioned in the radial clamping V-block 057 and V-positioning block 072, and the axial upper end face of the tested spindle 001 is pressed by the pressure head of the 90° rotating pressing cylinder 074 onto the upper end face of the V-positioning block 072.

[0116] The 90° rotating clamping cylinder is perpendicular to the direction of the force of the strip that drives the spindle to rotate and is located on the same side of the spindle.

[0117] The magnetic switches attached to the eight 90° rotating clamping cylinders on both sides constitute the PLC stroke program control logic condition for the axial clamping mechanism of the spindle of the double eight-channel double octet rotary cylinder. The PLC stroke program transfer condition is formed when all eight channels of magnetic switches on both sides detect the signal of the spindle being measured, and the loading cylinder is loaded.

[0118] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 7 The diagram shows the assembly of the spindle axial clamping, tension wheel pressurization, and unloading mechanism. Figure 9 The tension wheel pressurization mechanism structure diagram shown is as follows ( Figure 7 (KK section view), Figure 12 The diagram shows the structure of the double 5x stroke heavy hammer tension wheel pressurizing mechanism. Figure 7 (Partial magnified view), where:

[0119] The double 5x stroke heavy hammer tension wheel pressurizing mechanism: the spindle to be tested 001 is fixed on the V-shaped positioning block 072; the loading component mounting panel 084 is connected to the upper panel 073 of the frame via two loading linear guides 076 and loading linear guide mounting seats 077; the loading cylinder 075 is fixed to the upper panel 073 of the frame via the loading cylinder mounting seat 081; the loading cylinder piston rod connector 082 is connected to the loading component mounting panel 084 via the loading cylinder piston rod fixing seat 083; five tension wheels 078 are equipped with double bearings 079 and are fixed to the loading component mounting panel 084 by tension wheel shafts 080; six fixed wheels 085 are installed on the right side of the upper panel 073 of the frame, and two fixed wheels 085 are installed on the left side of the upper panel 073 of the frame near the motor-driven spindle belt disc 094; five loading tension wheels 086 are installed on the loading tension wheel support plate 087, and the loading... The tension wheel support plate 087 is connected to the upper panel 073 of the frame via two counterweights and linear guide rails 088. The counterweight support 089 is equipped with a pin 091 and a roller 090. The counterweight support 089 is fixed on the upper panel 073 of the frame on the left side near the motor-driven spindle belt reel 094. One end of the traction steel wire 093 is fixed on the loading tension wheel support plate 087, and the other end passes through the roller 090 to suspend the counterweight 092. The spindle belt 095, together with the motor-driven spindle belt reel 094, the fixed wheel 085 near the left side of the motor-driven spindle belt reel 094, the five tension wheels 078 fixed on the loading component mounting panel 084, the six fixed wheels 085 installed on the right side of the upper panel 073 of the frame, and the five loading tension wheels 086 installed on the loading tension wheel support plate 087, together with the counterweight 092 suspended at the end of the traction steel wire 093, constitute a constant tension spindle drive pressurization mechanism.

[0120] During operation, in the initial state (unloading condition): the double-sided loading cylinder 075 causes the loading cylinder piston rod connector 082 and the loading cylinder piston rod fixing seat 083 to drive the tension wheel 078 fixed on the loading component mounting panel 084 back to its original position, the pressurization mechanism unloads, the spindle belt 095 leaves the tested spindle 001, and the counterweight 092 drives the five loading tension wheels 086 installed on the loading tension wheel support plate 087 to move to the left through the traction steel wire 093. Five tension rollers 078 and the spindle belt 095 are arranged in a straight line. During loading: the double-sided loading cylinder 075 causes the loading cylinder piston rod connector 082 and the loading cylinder piston rod fixing seat 083 to drive the tension rollers 078 fixed on the loading component mounting panel 084 to press against the tested spindle 001. The pressurizing mechanism applies load, and the spindle belt 095 presses the tested spindle 001 tightly. Under the action of the loading cylinder 075, the spindle belt 095 drives the counterweight 092 to move upward, and the traction steel wire 093 and the five loading tension rollers 086 installed on the loading tension roller support plate 087 move to the right. The five tension rollers 078, the eight sets of tested spindles, and the spindle belt 095 are arranged in a U-shape.

[0121] Under loading conditions, two adjacent tension wheels, two sets of tested spindles and the spindle belt form a U-shaped external tangent spindle drive mode; under unloading conditions, five tension wheels and the spindle belt form a straight line arrangement.

[0122] The six fixed wheels, five loading tension wheels, and the spindle belt together form a five-set double-tangential structure design, which constitutes a double 5-times-stroke heavy hammer tension wheel pressurization mechanism, meaning that the spindle belt extension length is double 5 times the heavy hammer traction stroke.

[0123] The double-sided 8-channel material bridge corner and locking mechanism is equipped with a double-sided 8-channel material bridge corner mechanism and a material bridge corner locking mechanism;

[0124] The axis of the double-sided 8-channel material bridge corner mechanism is perpendicular to the axis of the material bridge corner mechanism.

[0125] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 13 The diagram shown is of a double-sided 8-channel material bridge corner mechanism. Figure 13 Partial enlarged view in section II, where:

[0126] The double-sided 8-channel material bridge corner mechanism: the frame side plate 119 is fixed to the left side of the frame upper panel 073; the rotary cylinder 122 is fixed to the frame side plate 119 via the rotary cylinder side bracket 123 and the rotary cylinder mounting bracket 120; the material bridge swing shaft is fixed to the bottom of the frame upper panel 073 by the support 18, and the material bridge swing shaft 115 in its inner hole is connected to the rotary cylinder 122 via the rotary cylinder coupling 121; the left and right material bridge swing arms 106 are fixed to the two sides of the material bridge swing arm fixing sleeve 113 that is loosely fitted on the material bridge swing shaft 115; each of the left and right material bridge swing arms 106 is equipped with a material bridge buffer shaft 112 on its side; the left and right torsional buffers... The punch sleeve 117 is fixedly connected to the material bridge swing shaft 115 by key 116. The side of the torsion buffer sleeve 117 has a fan-shaped groove, in which a material bridge buffer spring 114 is installed. The material bridge buffer spring 114 presses against the material bridge buffer shaft 112 installed on the side of the material bridge swing arm 106. The limit adjustment screw 124 is installed under the upper panel 073 of the frame and is used to adjust the relative position of the material bridge swing arm 106 and the upper panel 073 of the frame. The left and right material bridge swing arms 106 are respectively equipped with a material bridge 107, a left material bridge plate 108, and a right material bridge plate 109. The two material channel side limit strips 110 are installed on the left material bridge plate 108 and the right material bridge plate 109 through small shafts 111.

[0127] During operation, the rotary cylinder 122 drives the material bridge swing shaft 115 to rotate counterclockwise via the rotary cylinder coupling 121; the key 116 and the torsion buffer sleeve 117, which are fixedly connected to the material bridge swing shaft 115, drive the material bridge buffer shaft 112, the material bridge rotating arm 106, the material bridge 107, the left side plate 108 of the material bridge, the right side plate 109 of the material bridge, and the two side limit strips 110 of the material channel to rotate counterclockwise and rise through the material bridge buffer spring 114; the side clearance between the material bridge 107 and the upper panel 073 of the frame is adjusted by the limit adjustment screw 124, and the angle inconsistency error of the material bridge rotating arm 106 is adjusted by the material bridge buffer spring 114; the right side of the material bridge 107 is connected to the material inlet guide bridge 056, forming a bridge for the tested spindle 001 to be sent to the V-shaped positioning block 072 (radial clamping position).

[0128] The double-sided 8-channel material bridge corner mechanism is equipped with a material bridge buffer spring.

[0129] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 13 The diagram shown is of a double-sided 8-channel material bridge corner mechanism. Figure 14 The diagram shown is of the material bridge corner locking mechanism structure. Figure 13 (Middle K-direction view), where:

[0130] The material bridge corner locking mechanism: the locking cylinder 126 is fixed on the side of the slide table 125, the locking cylinder piston rod fixing seat 128 is fixed on the locking inclined block 129 in the slide table 125, the locking cylinder piston rod joint 127 is connected to the locking cylinder piston rod fixing seat 128, when the rotating cylinder 122 rotates to the right to the set position, the locking cylinder 126 drives the locking inclined block 129 to move to the left, locking the rotating cylinder 122;

[0131] During operation, the rotary cylinder 122 drives the material bridge swing shaft 115 to rotate counterclockwise via the rotary cylinder coupling 121. When the material bridge arm 106, material bridge 107, left side plate 108, right side plate 109, and the two side limit strips 110 of the material channel rotate counterclockwise and rise, the rotary cylinder 122 rotates clockwise to the set position. The locking cylinder 126 drives the locking wedge 129 to move to the left, locking the rotary cylinder 122. The function of the material bridge corner locking mechanism is to prevent the material bridge corner mechanism from naturally rotating clockwise and falling due to its own weight when the equipment suddenly stops supplying air during operation.

[0132] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 15 The diagram shown below illustrates the structure of a dual-sided 8-channel, double-eight-door intelligent automated silo mechanism, where:

[0133] The dual-sided 8-channel double octave AND gate intelligent automatic hopper mechanism comprises: a left unloading baffle 131 fixed to the side of the unloading linear guide mounting base 105; a right unloading baffle 132 fixed to the side of the proximity switch support 052; a left hopper slide 133 and a right hopper slide 134 arranged at 90°, with the left hopper slide 133 used for qualified products and the right hopper slide 134 used for unqualified products; a tilting cylinder 136 equipped with a hopper door 135 fixed at the intersection of the left hopper slide 133 and the right hopper slide 134, which drives the hopper door 135 to open either the left hopper slide 133 (qualified product channel) or the right hopper slide 134 (unqualified product channel); and magnetic switches attached to the tilting cylinder 136, with 8 magnetic switches connected to an octave AND gate logic terminal block to form an octave AND gate magnetic switch, whose output is sent to the PLC stroke program and the corresponding input terminal of the PLC of the automatic hopper control module.

[0134] During operation, the 8-channel digital intelligent spindle vibration characteristic online detector outputs an alarm signal 156, which drives the corresponding tilting cylinder 136 to open the corresponding bin door 135 to open the left bin slide 133 (qualified product channel) or the right bin slide 134 (unqualified product channel).

[0135] The left and right hopper slides are arranged at 90°. The hopper door on the tilting cylinder rotates 90°. Before and after the hopper door rotates, it is in contact with the plane of the left and right hopper slides respectively.

[0136] The magnetic switches attached to the eight double-sided tilting cylinders constitute the PLC stroke program control logic conditions for the double-sided eight-channel dual-eight-door intelligent automatic silo mechanism; the PLC stroke program transfer condition is formed when all eight channels of the double-sided magnetic switches detect the signal of the tilting cylinder opening the corresponding silo door, and the loading cylinder unloads and returns.

[0137] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 7 The diagram shows the assembly of the spindle axial clamping, tension wheel pressurization, and unloading mechanism. Figure 10 The diagram shows the structure of the double-sided 8-channel automatic unloading mechanism. Figure 7 (Middle MM section view), Figure 11 The diagram shows the structure of the double-sided 8-channel automatic unloading mechanism. Figure 7 (NN cross-sectional view), where:

[0138] The dual-sided 8-channel automatic unloading mechanism consists of two unloading cylinders 097 fixed to the middle of the upper panel 073 of the frame via unloading cylinder mounting seats 102 and unloading cylinder irregular bases 096; two unloading linear guides 098 fixed to both sides of the upper panel 073 of the frame via unloading linear guide mounting seats 105; unloading guide connecting rods 099 fixed on the two unloading linear guides 098, and the unloading guide connecting rods 099 connected to four unloading push rods 103 fixed on them, the front end of the unloading push rods 104 being U-shaped and located on the side of two adjacent tested spindles 001; and two unloading cylinder piston rod connectors 100 connected to the unloading cylinder piston rod fixing seats 101 fixed on the unloading connecting rods 103.

[0139] During operation, when the PLC stroke program and automatic hopper control module detect the magnetic switch signal of the rotary cylinder 122 dropping the material bridge 107, the ejector cylinder 097 drives the ejector cylinder piston rod fixing seat 101, ejector linear guide rail 098, ejector guide rail connecting rod 099, ejector connecting rod 103, and ejector push rod 104 to move to the right to eject the tested spindle 001 into the corresponding hopper.

[0140] The 8-channel digital intelligent spindle vibration characteristic online detector module 2 includes: an 8-channel digital intelligent spindle vibration characteristic online detector, a front panel, a rear panel, an intelligent over-limit alarm and sensitivity status display circuit, and a dual-sided 8-channel vibration sensor installation and adjustment section, wherein:

[0141] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 16 The schematic diagram shown is of an 8-channel digital intelligent spindle vibration characteristic online detector, in which:

[0142] The 8-channel digital intelligent spindle vibration characteristic online detector: the preamplifier of the eddy current sensor 002 is connected to the input terminal of the 8-channel signal conditioning circuit 137; the output terminal of the 8-channel signal conditioning circuit 137 is connected to the input terminal of the 8-channel AD conversion module 139, which is composed of AD7606 and its auxiliary circuits; the output terminal of the 8-channel AD conversion module 139 is connected to the corresponding P0 and P2 ports of the microcontroller 138; the OLED display module 140 is connected to the corresponding P1 port of the microcontroller 138; the CH2 channel output signal 153 of the fiber optic amplifier 152 is sent to the P3^2 port (interrupt port INT0) of the microcontroller via the speed measurement level conversion module 141; the data acquisition module of the microcontroller 138 sends the sampled and processed data to the OLED display screen 178 of the OLED display module 140 for display. The data is sent to the 485 bus for data processing, display, and file storage module 6; the alarm limit setting key 142 is connected to the microcontroller's P4^0 port, and its value is stored in the microcontroller's ROM for future use; the sensitivity selection key 143 is connected to the microcontroller's P4^1 port, and the sensitivity selection key value is pre-programmed according to the material of the tested spindle 001 for future use, and the selected value is stored in the microcontroller's ROM for future use; the vibration / velocity measurement screen switching key 159 is connected to the microcontroller's P4^3 port for selecting the vibration / velocity measurement screen of the OLED display module 140's OLED display screen 178; the 485 communication module 144 is connected to the microcontroller's serial port, and the microcontroller's P1^7 port is set as the direction control port for 485 half-duplex communication; the intelligent over-limit alarm and sensitivity status display circuit 145 is connected to the corresponding P3 and P4 ports of the microcontroller.

[0143] During operation, the preamplifier measurement signals from the 8-channel eddy current sensor 002 are sent to the 8-channel AD conversion module 139, which consists of AD7606 and its auxiliary circuits, via the 8-channel signal conditioning circuit 137. The OS0, OS1, and OS2 of the AD7606 are set to 010, employing a four-fold oversampling mode. First, the AD7606 internally acquires four samples and calculates the average, which is taken as one sample value for that measurement point. Then, the microcontroller's data acquisition module's true peak-to-peak value processing program continuously samples 2N sampling points (where N≥10, N=20 in this example). The average of the 2N oversampling data points from the 8 channels of the AD7606 is sorted from largest to smallest, a maximum value and a minimum value are removed, and the remaining five maximum and five minimum values ​​are subtracted to obtain five peak-to-peak values. The average of these five values ​​is taken as the peak-to-peak value for that channel and measurement point. The microcontroller's data acquisition module then processes the real-time samples from the 8 channels. The peak-to-peak data is processed and sent to the OLED display module 140's OLED screen 178 for display. The CH2 channel output signal 153 of the fiber optic amplifier 152 is sent to the microcontroller's P3^2 port (interrupt port INT0) via the speed measurement level conversion module 141. The pulse width method is used to measure the spindle speed under test, and the signal is then sent to the OLED display module 140's OLED screen 178 for display. The microcontroller's 138 data acquisition module merges and packages the real-time sampling peak-to-peak data from the 8 channels and the spindle speed measurement data using the pulse width method. This data is then sent to the data processing, display, and file storage module 6 via the 485 communication module 144 and the 485 bus. The sensitivity selection key 143's value is pre-programmed according to the material of the spindle under test (001) for recall. The selected value is stored in the microcontroller's ROM for automatic recall upon the next power-on. The alarm limit setting key 142's value is set according to the judgment standard of the spindle under test (001). Its value is stored in the microcontroller's ROM for automatic recall upon the next power-on.

[0144] The microcontroller is equipped with a dedicated subroutine for processing the true peak value of spindle vibration, an amplitude over-limit alarm subroutine, an alarm limit setting and sensitivity selection subroutine, an amplitude / velocity screen switching subroutine, a sensitivity key value and alarm key value storage and automatic recall subroutine, an OLED display subroutine, and an RS485-Modbus / RTU communication subroutine, and has complete intelligent instrument functions.

[0145] The rotational speed of the spindle under test is measured using the pulse width method.

[0146] The AD7606's OS0, OS1, and OS2 are set to 010, using a quadruple oversampling mode, which means that the hardware internally collects 4 samples and calculates the average value.

[0147] The microcontroller data acquisition module is equipped with a true peak-to-peak value processing program. According to the sampling theorem, the sampling frequency, the number of sampling points (2N sampling points, where N≥10) and the sampling interval are set. The average sampled data of the 8 channels of AD7606 with four times oversampling (2N sampling points) are sorted from largest to smallest. One maximum value and one minimum value are removed. The remaining five maximum values ​​and five minimum values ​​are taken and subtracted to obtain five peak-to-peak values. The average value of these five values ​​is taken as the peak-to-peak value of the measurement point of the channel.

[0148] The intelligent over-limit alarm and sensitivity status display circuit adopts a single-chip microcomputer port to drive the transistor to conduct or not, handle the sensitivity selection result, and judge the two states of the eight channels of tested spindles: whether they are qualified or not, and whether an alarm is triggered. This design effectively reduces the number of single-chip microcomputer ports occupied.

[0149] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 16 The schematic diagram shown is of an 8-channel digital intelligent spindle vibration characteristic online detector. Figure 20 The front panel shown includes:

[0150] The front panel includes an OLED display 178 (a 2.7-inch SPI serial port 12864 OLED screen) connected to the P1 port of the microcontroller 138; a red-yellow-green 3-key membrane keyboard is used for the sensitivity selection key 143, alarm limit setting key 142, and vibration / velocity measurement screen switching key 159. The sensitivity selection key 143 is connected to the P4^1 port of the microcontroller, the alarm limit setting key 142 is connected to the P4^0 port of the microcontroller, and the vibration / velocity measurement screen switching key 159 is connected to the P4^3 port of the microcontroller; dual-color LEDs 146 correspond to the over-limit alarm status of the corresponding channel, with green indicating compliance and red indicating an over-limit alarm; sensitivity status lights 148 correspond to the corresponding tested spindle material, with green for steel and red for aluminum; and communication status lights 161 are connected to the microcontroller's serial port P3^0 (RXD).

[0151] During operation, the peak-to-peak data of the real-time sampling processing of the 8 channels is displayed on the OLED display 178; the communication status light 161 displays the communication status with the host computer, and flashing of the communication status light 161 indicates normal communication; the sensitivity selection key 143 is used to select the material of the tested spindle 001, and the sensitivity status light 148 indicates the current material status of the tested spindle 001, with green light for steel and red light for aluminum; the alarm limit setting key 142 is used to set the judgment criteria for different tested spindles 001, and the dual-color LED light 146 indicates whether the tested spindle 001 of the current channel meets the preset judgment criteria, with green light indicating compliance and red light indicating an over-limit alarm; the vibration / velocity measurement screen switching key 159 allows switching between vibration / velocity measurement screens on the OLED display 178.

[0152] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 16 The schematic diagram shown is of an 8-channel digital intelligent spindle vibration characteristic online detector. Figure 19 The rear panel shown includes:

[0153] The rear panel includes: 8 vibration sensor signal input sockets 155 (using 4-pin aviation sockets) connected to the corresponding channel eddy current sensor 002; speed signal input socket 160 using a 4-pin aviation socket connected to the output signal 153 of the E3X-fiber speed sensor; alarm signal output 156 using a 10-pin aviation socket connected to the corresponding channel input of the PLC stroke program and automatic hopper control module 3; 485 communication interface 157 using a 4-pin aviation socket connected to the 485 bus; and USB communication interface 158 using a Type A female connector connected to the microcontroller via a USB-to-serial module CH340T.

[0154] During operation, the measurement signals from the 8-channel eddy current sensors 002 are sent to the 8-channel signal conditioning circuit 137 for processing via the vibration sensor signal input socket 155; the output signal 153 from the E3X-fiber optic speed sensor is sent to the speed measurement level conversion module 141 via the speed signal input socket 160 and then to the microcontroller's P3^2 port (interrupt port INT0); the alarm signal output 156 is sent to the corresponding channel input terminal of the PLC stroke program and the automatic hopper control module 3, serving as the transfer condition for the dual-sided 8-channel double-octane intelligent automatic hopper tilting cylinder 136 to open the corresponding hopper door; the 485 communication interface 157 is connected to the 485 bus for communication with the host computer; the USB communication interface 158 is used for standalone communication with the host computer.

[0155] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 16 The schematic diagram shown is of an 8-channel digital intelligent spindle vibration characteristic online detector. Figure 17 The intelligent over-limit alarm and sensitivity status display circuit shown is as follows ( Figure 16 (Enlarged view of the schematic diagram of component 145) Figure 20 The front panel shown includes:

[0156] The intelligent over-limit alarm and sensitivity status display circuit: The dual-color LED 146 (red light) and the base of transistor 147 are connected to the corresponding channel ports of the P3 and P4 ports of the microcontroller 138. When the corresponding port outputs a low level, transistor 147 is cut off, the green light is off, and the red light is on, indicating an alarm for that channel. The dual-color LED 146 (green light) is connected to the collector output terminal of transistor 147 driven by the corresponding channel port of the microcontroller's P3 and P4 ports. When the corresponding port outputs a high level, the red light is off, and the transistor... When transistor 147 is on, its collector outputs a low level, and the green light illuminates, indicating that the channel is qualified. The green light of sensitivity status indicator 148 and the base of transistor 147 are connected to the microcontroller's P4^2 port. The red light of sensitivity status indicator 148 is connected to the collector of transistor 147. When the P4^2 port outputs a low level, transistor 147 is off, the red light goes out, and the green light illuminates, indicating the sensitivity status is "steel." When the P4^2 port outputs a high level, transistor 147 is on, the green light goes out, and the red light illuminates, indicating the sensitivity status is "aluminum."

[0157] During operation, the measurement signals from the 8-channel eddy current sensors 002 are processed by the 8-channel signal conditioning circuit 137 after passing through the vibration sensor signal input socket 155. The signals are then sent to the microcontroller data acquisition module's peak-to-peak value processing program to obtain real-time sampled peak-to-peak data for the 8 channels. The microcontroller's data acquisition module's alarm processing program compares the peak-to-peak data of each channel with the key values ​​set on the alarm limit setting key 142 for different criteria used to determine whether the tested spindle 001 is qualified. If qualified, the corresponding channel port of the microcontroller 138 outputs a high level, the red light goes out, the transistor 147 conducts, the collector outputs a low level, and the green light illuminates. If unqualified, the corresponding port outputs a low level, the transistor 147 is cut off, the green light goes out, the red light illuminates, and the channel alarms.

[0158] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 2 The dual-sided 8-channel vibration sensor mounting and adjustment section shown includes:

[0159] The dual-sided 8-channel vibration sensor installation and adjustment section includes: an eddy current sensor 002 fixed to the inner hole of a bushing 003 by a nut 015; a convex arc-shaped key 011 is provided in the upper hole of the sensor base 007, and a U-shaped groove is provided axially at the lower part of the bushing 003, allowing the bushing 003 with the eddy current sensor 002 to slide back and forth along the convex arc-shaped key 011; a pin 004 is fixed to the top of the sensor base 007, and a locking button 006 can rotate on the pin 004. The locking button 006 is an eccentric wheel. The upper part of the bushing 003 has a U-shaped groove axially. Rotating the locking button 006 downwards fixes the bushing 003 with the eddy current sensor 002 onto the sensor base 007 via a locking block 005. Adjusting the position of the bushing 003 relative to the sensor base 007 allows for rapid adjustment of the eddy current sensor position. The measurement gap between the eddy current sensor 002 and the spindle 001 being measured is defined. A through hole perpendicular to the axis of the upper hole of the sensor base 007 is provided at the lower part of the sensor base 007. A crossbeam 010 is installed inside the hole. This through hole has a blind hole parallel to the axis of the upper hole of the sensor base 007. A locking pin 008 is installed on the crossbeam 010 inside the blind hole. By rotating the locking nut 009, the sensor base 007 can be locked onto the crossbeam 010. The crossbeam 010 is fixed to the support sleeve 013 with screws 016. The support column 012 is fixed to the upper panel 073 of the frame. The support sleeve 013 is loosely fitted onto the support column 012 and locked with screws 017. The height of the support sleeve 013 can be adjusted by using a round nut 014, thereby adjusting the measurement height of the eddy current sensor 002 relative to the spindle 001 being measured.

[0160] During operation, turn the locking knob 006 counterclockwise upwards to adjust the measurement gap between the eddy current sensor 002 and the spindle 001 being measured. Turn the locking nut 009 counterclockwise to loosen the locking pin 008 and adjust the left and right center position and pitch angle of the eddy current sensor 002 mounted on the upper part of the sensor base 007 relative to the spindle 001 being measured. Use the round nut 014 to adjust the height of the support sleeve 013 relative to the spindle 001 being measured. Tighten the locking knob 006, locking nut 009, screw 017, and screw 016 respectively to complete the installation and adjustment of the eddy current sensor 002.

[0161] The eddy current sensor can be quickly adjusted in four degrees of freedom: height relative to the spatial coordinates of the measured spindle, front-back position measurement gap, left-right position center alignment, and pitch angle.

[0162] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 3 The diagram shown is an assembly drawing of a dual-sided 8-channel parallel double octave gate feeding, feeding, and radial clamping mechanism. Figure 4 The diagram shows the structure of the dual-sided 8-channel continuous feeding mechanism. Figure 3 (Cross-sectional view of AA) Figure 5 The diagram shows the structure of the bilateral 8-channel parallel double 8-channel material feeding and radial clamping mechanism. Figure 3 (Cross-section view of BB) Figure 6 shown Figure 4 CC section view, Figure 7 The diagram shows the assembly of the spindle axial clamping, tension wheel pressurization, and unloading mechanism. Figure 8 The diagram shows the structure of the double-sided 8-channel dual-eight-gate rotary cylinder spindle axial pressing mechanism. Figure 7 (EE section view), Figure 9 The tension wheel pressurization mechanism structure diagram shown is as follows ( Figure 7 (KK section view), Figure 10 The diagram shows the structure of the double-sided 8-channel automatic unloading mechanism. Figure 7 (Middle MM section view), Figure 11 The diagram shows the structure of the double-sided 8-channel automatic unloading mechanism. Figure 7 (middle NN sectional view), Figure 13 The diagram shown is of a double-sided 8-channel material bridge corner mechanism. Figure 13 Enlarged view of part II in the middle section. Figure 14 The diagram shown is of the material bridge corner locking mechanism structure. Figure 13 (Middle K-direction view), Figure 15 The diagram shown is of a dual-sided 8-channel, double-eight-door intelligent automated silo mechanism. Figure 16 The schematic diagram shown is of an 8-channel digital intelligent spindle vibration characteristic online detector. Figure 19 The rear panel shown includes:

[0163] The PLC stroke program and automatic hopper control module 3: The HMI human-machine interface is equipped with adjustment, operation, and alarm function screens according to engineering requirements and is connected to the PLC; The PLC stroke program and automatic hopper control execution unit, through the PLC stroke program, PLC input terminal proximity switch 054, octal AND gate logic terminal block, magnetic switch, etc., controls the operation of PLC output terminal indicator lights, alarm lights, buzzers, contactors, solenoid valves, etc., so that the slide cylinder 046, radial clamping cylinder 062, 90° rotation clamping cylinder 074, loading cylinder 075, rotation cylinder 122, locking cylinder 126, tilting cylinder 136, and unloading cylinder 097 complete the prescribed actions according to the program.

[0164] During operation, based on input / output and function switching conditions, the following actions cycle through: Start - Gear Motor 021 running, double-sided 8-channel continuous feeding - octagonal proximity switch 054 - Feeding mechanism slide cylinder 046 feeding - magnetic switch - radial clamping cylinder 062 clamping - magnetic switch - 90° rotational clamping cylinder 074 axial clamping - octagonal magnetic switch - loading cylinder 075 loading - magnetic switch - 8-channel digital intelligent spindle vibration characteristic online detector alarm signal output 156 - double-sided 8-channel dual octagonal intelligent automatic hopper tilting cylinder 136 opening the corresponding hopper door - octagonal magnetic switch - loading cylinder 075 unloading return - magnetic switch - 90° rotational clamping cylinder 074 return, radial clamping cylinder 062 return - magnetic switch - locking cylinder 126 unlocking - magnetic switch - rotational cylinder 122 dropping bridge 107 - magnetic switch - unloading cylinder 097 unloading - magnetic switch - double-sided 8-channel dual The 8-AND gate intelligent automatic hopper tilting cylinder 136 resets, magnetic switch, material ejection cylinder 097 returns, magnetic switch, rotary cylinder 122 returns, lifting bridge 107, magnetic switch, locking cylinder 126 returns, locking, magnetic switch, material feeding mechanism slide cylinder 046 returns, one cycle ends and starts; when a certain conversion condition is not met, such as a material shortage or mechanical failure jamming in a certain channel of the 8-channel continuous feeding mechanism, the corresponding channel of the 8-AND gate proximity switch 054 is 0, then the output of the 8-AND gate logic terminal block is 0, triggering a light alarm within the rated time, and operation is restored after handling; another example is that the air inlet of eight 90° rotary clamping cylinders on both sides is connected in parallel to a solenoid valve. Due to mechanical jamming or pneumatic circuit failure, any 90° rotary clamping cylinder does not work properly in place, then the corresponding channel of the 8-AND gate magnetic switch is 0, then the output of the 8-AND gate logic terminal block is 0, triggering a light alarm within the rated time, and operation is restored after handling;

[0165] The slide cylinder, radial clamping cylinder, 90° rotating pressing cylinder, loading cylinder, rotating cylinder, locking cylinder, tilting cylinder, and unloading cylinder are all magnetic cylinders with magnets and magnetic switches.

[0166] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 7 The diagram shows the assembly of the spindle axial clamping, tension wheel pressurization, and unloading mechanism. Figure 18 The E3X-fiber optic speed sensor shown includes:

[0167] The spindle drive control speed measurement module: The HMI (Human Machine Interface) program controls the frequency converter, frequency converter motor, and motor drive spindle reel 094 to rotate the tested spindle 001; the tested spindle 001 is coated with a reflective light spot 150 by a marker pen, and the reflected fiber optic signal is sent to the fiber optic amplifier 152 for processing via the fiber optic sensor 151. The fiber optic amplifier 152 has a light reception threshold function. The reflective light spot 150 of the tested spindle 001 and the reflection from the surface of the tested spindle 001 generate a pulse signal with varying light reception brightness, which is then transmitted from the attached... Figure 18 As shown in the schematic diagram 154 of the fiber optic amplifier: the fiber optic amplifier 152 outputs signal 153 to the PLC via channel CH1. The PLC calculates the number of pulses per unit time and sends it to the HMI (Human Machine Interface) to convert it into the rotational speed of the spindle under test. The output signal 153 of channel CH2 of the fiber optic amplifier 152 is sent to the P3^2 port (interrupt port INT0) of the microcontroller via the speed measurement level conversion module 141. The rotational speed of the spindle under test is measured using the pulse width method and then sent to the OLED display screen 178 of the OLED display module 140 for display. The data acquisition module of the microcontroller 138 merges and packages the peak-to-peak data of the real-time sampling from the 8 channels and the data of the spindle rotational speed measured using the pulse width method. The data is then sent to the data processing, display, and file storage module 6 via the 485 communication module 144 through the 485 bus for processing.

[0168] During operation, the HMI (Human Machine Interface) program controls the frequency converter, frequency conversion motor, and motor drive spindle reel 094 to rotate the tested spindle 001. The reflected light spot 150 of the tested spindle 001 generates a pulse signal with varying brightness of the received light. The fiber optic amplifier 152 outputs signal 153 through channel CH1 to the PLC. Using the pulse count method per unit time, the rotational speed of the tested spindle 001 is generated and sent to the HMI for display. The output signal 153 of channel CH2 of the fiber optic amplifier 152 is sent to the microcontroller through the speed measurement level conversion module 141. The rotational speed of the tested spindle is measured using the pulse width method and sent to the OLED display screen 178 of the OLED display module 140 for display. The peak-to-peak data of the real-time sampling processing of the 8 channels is merged and packaged with the rotational speed data of the tested spindle, and then sent to the data processing, display, and file storage module 6 via the 485 communication module 144 through the 485 bus.

[0169] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 21 The 8-channel spindle temperature detector shown includes:

[0170] The spindle temperature detection module: The DS18B20 digital temperature sensor is connected to the 8-channel spindle temperature detector via the sensor plug 162 of the thermometer, and sends the data to the OLED spindle temperature display 163. The data is also sent to the host computer PYTHON application of the data processing, display and file storage module 6 via the thermometer 485 communication interface 164 and the 485 bus.

[0171] During operation, the DS18B20 digital temperature sensor is clamped to the lower part of the spindle being measured (001), and is connected to the 8-channel spindle temperature detector via the sensor plug 162 of the temperature measuring instrument. The measurement results are displayed on the OLED spindle temperature display 163, and simultaneously sent to the data processing, display, and file storage module 6 via the temperature measuring instrument's 485 communication interface 164 and the 485 bus.

[0172] Combination Figure 1 The diagram shown is a block diagram of a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system. Figure 22 The above is a line graph showing the eight-channel vibration characteristics of the host computer in the time domain, where:

[0173] The data processing, display, and file storage module 6 has a 485 communication interface connected to an RS485 bus. The PYTHON application acts as the host, sending read and write commands to the bus via the RS485-Modbus / RTU communication protocol. The communication parameter setting area 165 is used to set communication parameters such as serial port number, parity bit, stop bit, baud rate, data bits, and sampling period. The current communication device address 166 is used to select the address of the communication device. The automatic serial port number scanning button 167 is used for automatic scanning of the serial port number in the communication parameter setting area 165. The serial port open / close switch button 168 is used to open and close the serial port. The start / stop acquisition switch button 169 is used to send data to the bus and... Stop sending commands; Serial port status monitor 170 displays whether sending and receiving are normal; Send data monitoring window 171 displays sent data (hexadecimal); Receive data monitoring window 172 displays received data (hexadecimal); Current communication device channel number 173 displays the channel number of the current real-time data and graph; Current channel amplitude real-time value 174 displays the real-time amplitude value of a certain channel of the current communication device read on the bus; Current channel amplitude moving average 175 displays the moving average of the current channel amplitude on the host computer; Current channel amplitude standard deviation 176 displays the standard deviation of the current amplitude on the host computer; Current channel amplitude real-time waveform 177 displays the time-amplitude curve of the current channel.

[0174] During operation, in the communication parameter setting area 165, you can manually set communication parameters such as serial port number, parity bit, stop bit, baud rate, data bits, and sampling period. Alternatively, you can click the automatic serial port number scanning button 167 to automatically identify the communication serial port number. Click the open and close serial port switching button 168 to open the serial port, and click the start and stop acquisition switching button 169. The PYTHON application acts as the host and sends read and write commands to the bus through the RS485-Modbus / RTU communication protocol. The device then starts working, processes the received data, and sends it to the corresponding channel window for display and storage.

[0175] The data processing, display, and file storage modules provide real-time time-amplitude curves, current amplitude value, moving average, and standard deviation display records for each networked device; real-time time-temperature rise curves, current temperature value, moving average, and standard deviation display records; real-time time-amplitude and time-temperature rise composite curves display records; and real-time spindle speed-amplitude curves, current amplitude value, moving average, and standard deviation display records for all networked devices.

[0176] In summary, a distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system is composed of networked independent "multi-channel digital intelligent spindle vibration characteristic online detection subsystems." Each subsystem includes: a mechanical motion execution module, an 8-channel digital intelligent spindle vibration characteristic online detector module, a PLC stroke program and automatic hopper control module, a spindle drive control speed measurement module, a spindle temperature detection module, and a data processing, display, and file storage module. Specifically, the mechanical motion execution module is equipped with a dual-sided 8-channel parallel double-octane gate feeding, feeding, and radial clamping mechanism; a dual-sided 8-channel double-octane gate rotary cylinder spindle axial pressing mechanism; a double 5x stroke heavy hammer tension wheel pressurizing mechanism; a dual-sided 8-channel material bridge cornering and locking mechanism; a dual-sided 8-channel double-octane gate intelligent automatic hopper mechanism; and a dual-sided 8-channel automatic unloading mechanism.

[0177] This distributed, multi-channel digital intelligent online analysis and detection system for spindle vibration characteristics adopts a modular design. The sensors are highly accurate and adaptable, unaffected by environmental noise, light intensity, dust, oil mist, or seasonal factors. The sensors can be calibrated offline. It utilizes an 8-channel, 16-bit AD7606 module with SPI serial communication, a sampling rate of 200KSPS, and a 4x oversampling mode, ensuring high testing accuracy. The 8-channel digital intelligent online spindle vibration characteristic detector features powerful real-time sampling capabilities. It also includes digital display, intelligent over-limit alarm, and standalone offline and network operation functions. The microcontroller includes dedicated subroutines for spindle vibration true peak-to-peak value processing, amplitude over-limit alarm, alarm limit setting, sensitivity selection, and amplitude / velocity screen switching. It features automatic recall subroutines for storing sensitivity key values ​​and alarm key values, an OLED display subroutine, and an RS485-Modbus / RTU communication subroutine, providing complete intelligent instrument functions. It also includes stroke program control, audible and visual alarms for functional abnormalities, and automatic sorting of qualified and unqualified samples. The host computer is programmed using Python, a language with powerful scientific computing, statistical analysis, and graphics processing capabilities. It can provide networked devices with: real-time time-amplitude curves in the time domain, displaying and recording the current amplitude value, moving average, and standard deviation; real-time time-temperature rise curves in the time domain, displaying and recording the current temperature value, moving average, and standard deviation; real-time time-amplitude and time-temperature rise composite curves in the time domain; and real-time spindle speed-amplitude curves in the frequency domain, displaying and recording the current amplitude value, moving average, and standard deviation.

[0178] This invention is a distributed multi-channel digital intelligent online analysis and detection system for spindle vibration characteristics, built upon the first domestic and international 8-channel digital intelligent online spindle vibration characteristic detector. It utilizes Python scientific computing, statistical analysis, graphics processing, distributed system technology, and various modern mechatronics digital intelligent automatic control technologies. This system is a new type of intelligent manufacturing equipment in the textile machinery manufacturing field. The system boasts high stability, high automation and efficiency, a small footprint, labor savings, and reduced labor intensity. It achieves: traceability of past data; recording and querying of quality fluctuations during the production process; digital storage of detection data; graphical representation of the testing process; intelligent sorting; automated production; and convenient distributed networking.

Claims

1. A distributed multi-channel digital intelligent online analysis and detection system for spindle vibration characteristics, characterized in that, include: It consists of an interconnected network of independent 8-channel digital intelligent spindle vibration characteristic online detection subsystems. Each subsystem includes: a mechanical motion execution module, an 8-channel digital intelligent spindle vibration characteristic online detector module, a PLC stroke program and automatic hopper control module, a spindle drive control and speed measurement module, a spindle temperature detection module, and a data processing, display, and file storage module. The mechanical motion execution module is equipped with a double-sided 8-channel parallel double-octane gate feeding, feeding, and radial clamping mechanism symmetrically arranged along its longitudinal axis; a double-sided 8-channel double-octane gate rotary cylinder spindle axial pressing mechanism; a double 5x stroke heavy hammer tension wheel pressurizing mechanism; a double-sided 8-channel material bridge cornering and locking mechanism; a double-sided 8-channel double-octane gate intelligent automatic hopper mechanism; and a double-sided 8-channel automatic material unloading mechanism. The bilateral 8-channel parallel double octave AND gate feeding, feeding, and radial clamping mechanism is equipped with a bilateral 8-channel continuous feeding mechanism and a bilateral 8-channel parallel double octave AND gate feeding and radial clamping mechanism. The dual-sided 8-channel continuous feeding mechanism adopts an 8-channel parallel feeding method and uses a split coupling to connect the left and right half shafts for transmission. When the split coupling is removed, the damaged conveyor belt can be easily replaced. The axis of the double-sided 8-channel continuous feeding mechanism is perpendicular to the axis of the double-sided 8-channel parallel double-eight-channel feeding mechanism and parallel to the axis of the radial clamping mechanism; Eight proximity switches on both sides constitute the PLC stroke program control logic conditions for the dual-eight gate feeding mechanism with eight parallel channels on both sides. The radial clamping mechanism is equipped with a spindle radial clamping buffer device. The hole in the buffer chamber end cover is rectangular, the head of the radial push rod is cylindrical, and the rear is rectangular, which plays the role of radial clamping buffer and axial guidance. In the aforementioned double 5-times stroke heavy hammer tension wheel pressurization mechanism, 6 fixed wheels and 5 loading tension wheels constitute 5 sets of spindle belt double tangential structures, and the spindle belt extension length is double 5 times the heavy hammer traction stroke. The microcontroller of the 8-channel digital intelligent spindle vibration characteristic online detector is equipped with a true peak-to-peak value processing program. According to the sampling theorem, the sampling frequency, number of sampling points, and sampling interval are set, and 2N sampling points are taken, where N≥10. The average sampling data of the 8 channels of AD7606 with four times oversampling are sorted from largest to smallest. One maximum value and one minimum value are removed. The remaining five maximum values ​​and five minimum values ​​are subtracted from each other to obtain five peak-to-peak values. The average value is taken as the peak-to-peak value of the channel and the measurement point. The real-time sampling peak-to-peak value data of the 8 channels is sent to the data processing, display, and file storage module for processing.

2. The distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system according to claim 1, characterized in that, In the aforementioned bilateral 8-channel double-eight-gate rotary cylinder spindle axial pressing mechanism: The air inlet of eight 90° rotating clamping cylinders on both sides is connected in parallel to a solenoid valve; the 90° rotating clamping cylinders are perpendicular to the direction of the force of the strip that drives the spindle to rotate and are located on the same side of the spindle. The magnetic switches attached to the eight 90° rotating clamping cylinders on both sides constitute the PLC stroke program control logic conditions for the axial clamping mechanism of the spindle of the double-sided eight-channel double-octet rotary cylinder.

3. The distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system according to claim 1, characterized in that, In the double 5x stroke heavy hammer tension wheel pressurization mechanism: Under loading conditions, two adjacent tension wheels, two sets of tested spindles and the spindle belt form a U-shaped external tangent spindle drive mode; under unloading conditions, five tension wheels and the spindle belt form a straight line arrangement.

4. The distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system according to claim 1, characterized in that, In the aforementioned double-sided 8-channel material bridge corner and locking mechanism: The double-sided 8-channel material bridge corner mechanism is equipped with a material bridge buffer spring.

5. The distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system according to claim 1, characterized in that, In the aforementioned dual-sided 8-channel double-eight-gate intelligent automated silo mechanism: The left and right hopper slides are arranged at 90°. The hopper door on the tilting cylinder rotates 90°. Before and after the hopper door rotates, it is in contact with the plane of the left and right hopper slides respectively. The magnetic switches attached to the eight dual-sided tilting cylinders constitute the PLC stroke program control logic conditions for the dual-sided eight-channel double-eight AND gate intelligent automatic silo mechanism.

6. The distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system according to claim 1, characterized in that, In the aforementioned dual-sided 8-channel automatic unloading mechanism: The ejector guide rod is connected to four ejector push rods via four ejector connecting rods fixed on it, and the front end of the ejector push rod is U-shaped.

7. In the distributed multi-channel digital intelligent spindle vibration characteristic online analysis and detection system according to claim 1, the data processing, display, and file storage modules include: Provides real-time time-amplitude curves for each networked device, displaying and recording the current amplitude value, moving average, and standard deviation; real-time time-temperature rise curves, displaying and recording the current temperature value, moving average, and standard deviation; real-time time-amplitude and time-temperature rise composite curves; and real-time spindle speed-amplitude curves, displaying and recording the current amplitude value, moving average, and standard deviation.

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