A tool life monitoring type target object pre-separation device based on a random forest regression algorithm

Abstract

The application discloses a tool life monitoring type target object pre-separation device based on a random forest regression algorithm and belongs to the field of artificial intelligence cognitive mechatronics. A cutter spacing adjusting mechanism is installed above a tool holder assembly and a support sheet metal assembly, a horizontal linear slide rail guide assembly is installed below a slide rail guide support assembly, and the slide rail guide support assembly is installed above the support sheet metal assembly. The tool holder assembly is installed below the horizontal linear slide rail guide assembly, and the support sheet metal assembly is connected with a longitudinal screw sliding assembly and a longitudinal optical axis sliding guide assembly respectively. Two ends of the longitudinal screw sliding assembly and the longitudinal optical axis sliding guide assembly are installed on end faces of upper and lower square plates of a rack, a manual rotary positioning table assembly is installed on an end face of a lower square plate of the rack, and a motor driving chain assembly is installed at a lower end of the lower square plate of the rack and connected with the longitudinal screw sliding assembly. The application can predict and display the life condition of a tool and also can adjust the distance between cutters.

Description

TECHNICAL FIELD

[0001] The application relates to a tool life monitoring type target object pre-separation device based on a random forest regression algorithm and belongs to the field of artificial intelligence cognitive mechatronics. BACKGROUND

[0002] In the tea cake market, tea cakes in the shape of cakes are often seen, which are specially shaped to facilitate customers to carry and store after purchase. However, after customers purchase tea cakes in the shape of cakes, they need to cut the tea cakes into small pieces before use, which not only makes the operation cumbersome, but also causes the separated tea cake residues to fall, resulting in a relatively wasteful behavior.

[0003] Although there are many tea cake cutting machines in the tea cake market, the related technology is relatively mature, but most of the tea cake cutting machines are large in size, loud in noise, slow in cutting speed, single in applicability, and unable to predict the tool life. Therefore, a tool life monitoring type target object pre-separation device based on a random forest regression algorithm is developed, which is fast in cutting speed, high in efficiency, small in size, silent, can predict the tool life, has a cutting knife distance adjusting structure, and can adapt to the operation requirements of target object pre-separation in different occasions and different sizes. SUMMARY

[0004] The application provides a tool life monitoring type target object pre-separation device based on a random forest regression algorithm, which is intelligent and simple in structure, rich in function, and ingenious and practical in the whole structure. The device can not only predict and display the life of six knives in real time through an artificial intelligence algorithm, but also adjust the distance between the six cutting knives through an equidistant adjusting mechanism. The device can also press and cut the target object with the six cutting knives, and the six cutting knives can be equidistantly adjusted through the distance adjusting mechanism. The device can also be used to achieve the effect of cutting the target object without completely cutting it off.

[0005] The technical scheme of the present application is: a tool life monitoring type target object pre-separation device based on a random forest regression algorithm, comprising a rack 1, a cutter spacing adjusting mechanism 2, a transverse linear slide rail guide assembly 3, a slide rail guide support assembly 4, a tool holder assembly 5, a support sheet metal assembly 6, a longitudinal screw slide assembly 7, a longitudinal optical axis slide guide assembly 8, a manual rotary positioning table assembly 9, a motor-driven chain assembly 10, a sensor assembly 11, and an integrated display screen 12; the cutter spacing adjusting mechanism 2 is installed above the tool holder assembly 5 and the support sheet metal assembly 6; the transverse linear slide rail guide assembly 3 is installed below the slide rail guide support assembly 4, and provides a guiding action for adjusting the spacing between the tool holders; the slide rail guide support assembly 4 is installed above the support sheet metal assembly 6; the tool holder assembly 5 is installed below the transverse linear slide rail guide assembly 3, and adjusts the distance between the cutters through a sliding block; the support sheet metal assembly 6 is connected with the longitudinal screw slide assembly 7 and the longitudinal optical axis slide guide assembly 8; the two ends of the longitudinal screw slide assembly 7 and the longitudinal optical axis slide guide assembly 8 are installed on the two end faces of the upper square plate 1-3 and the lower square plate 1-4 of the rack 1, and the longitudinal optical axis slide guide assembly 8 provides a guiding action for the movement of the longitudinal screw slide assembly 7; the manual rotary positioning table assembly 9 is installed on the end face of the lower square plate 1-4 of the rack 1, and provides a lifting and rotary positioning action for the target object; the motor-driven chain assembly 10 is installed at the lower end of the lower square plate 1-4 of the rack 1, and provides power for the longitudinal screw slide assembly 7 to drive the tool holder assembly 5 to move up and down; the sensor assembly 11 is installed on the tool holder assembly 5, and collects sample data related to the tool life for a random forest regression model; and the integrated display screen 12 is installed on the upper square plate 1-3 of the rack 1, and displays the tool life predicted by the random forest regression model in real time.

[0006] Specifically, the rack 1 further comprises longitudinal beams 1-1 (aluminum square tubes), cross beams 1-2 (aluminum square tubes), table legs 1-5, the upper square plate 1-3 and the lower square plate 1-4 are fixed with the cross beams 1-2 around, the upper square plate 1-3 and the lower square plate 1-4 are connected through the longitudinal beams 1-1 between the corresponding four corners, the bottom of the four corners of the lower square plate 1-4 is connected with the table legs 1-5, and the mutual contact surfaces between the longitudinal beams 1-1, the cross beams 1-2, the upper square plate 1-3, the lower square plate 1-4, and the table legs 1-5 are connected by welding.

[0007] Specifically, the cutter spacing adjustment mechanism 2 includes a first fixed support seat 2-1, a customized positive and negative screw 2-2, a separated body type nut 2-3, a separated body type slider 2-4, and an external hexagonal bolt 2-5. The first fixed support seat 2-1 is installed on the left side plate of the support sheet metal assembly 6 through a fixing screw. The customized positive and negative screw 2-2 is installed at one end of the first fixed support seat 2-1, and six separated body type nuts 2-3 and six separated body type sliders 2-4 are installed in the middle of the customized positive and negative screw 2-2. The separated body type nut 2-3 and the separated body type slider 2-4 are installed on the customized positive and negative screw 2-2. The separated body type slider 2-4 is installed above the cutter holder assembly 5 through a fixing screw, and the separated body type nut 2-3 is installed on the side of the separated body type slider 2-4 through a fixing screw. The external hexagonal bolt 2-5 is installed at the other end of the customized positive and negative screw 2-2. By tightening the external hexagonal bolt 2-5, the customized positive and negative screw 2-2 is driven to rotate. The customized positive and negative screw 2-2 is a special screw. The thread spacing of the screw is customized, and the thread pitch ratios of the positive and negative threads are both 1:3:5. The six separated body type nuts 2-3 are arranged at equal distances.

[0008] Specifically, the transverse linear slide rail guide assembly 3 includes a linear guide rail 3-1 and a slider 3-2. The slider 3-2 is installed on the linear guide rail 3-1 through a sliding slot. The linear guide rail 3-1 is installed below the slide rail guide support assembly 4 through a fixing screw. The slider 3-2 is connected to the cutter holder 5-1 in the cutter holder assembly through a fixing nut. The slider 3-2 can move linearly on the linear guide rail 3-1, so that the transverse linear slide rail guide assembly 3 can serve as a guide mechanism for the movement of the cutter holder assembly 5 when the cutter spacing adjustment mechanism 2 adjusts the spacing of the cutters.

[0009] Specifically, the slide rail guide support assembly 4 is a frame welded by four aluminum square tubes. Two transverse aluminum square tubes 4-1 are connected to the two linear guide rails 3-1 through fixing bolts. The vertical aluminum square tube 4-2 and the vertical aluminum square tube with an opening 4-3 are welded on the support sheet metal assembly 6. One of the vertical aluminum square tubes 4-3 is cut to form an opening, which facilitates the use of tools to tighten the external hexagonal bolt 2-5 of the customized positive and negative screw. The purpose of the slide rail guide support assembly 4 is to support the transverse linear slide rail guide assemblies 3 on both sides. When the cutting target is pressed downward, a vertical upward force is generated. The slide rail guide support assembly 4 can balance and support the vertical upward force at this time.

[0010] Specifically, the tool holder assembly 5 includes six tool holders 5-1, six cutters 5-2; the tool holder 5-1 is provided with a cutter slot for mounting the cutter 5-2, and four circular holes are arranged on the side edge; the cutter 5-2 is provided with a circular hole matching the position and size of the circular hole on the tool holder 5-1; after the cutter 5-2 is installed in the cutter slot, the cutter 5-2 and the tool holder 5-1 can be further fastened by installing bolts and nuts on the circular holes; a certain distance is left between each tool holder 5-1, and the purpose is to adjust the distance between the tool holders 5-1.

[0011] Specifically, the support sheet metal assembly 6 includes two sheet metal pieces 6-1, which are connected with the screw nuts 7-4 of the left and right longitudinal screws and the linear bearings 8-3 of the longitudinal optical axis sliding guide assembly through fixing screws; the sheet metal pieces are made to increase the strength of the structure and improve the stability of the mechanism.

[0012] Specifically, the longitudinal screw sliding assembly 7 includes a screw 7-1, a support seat 7-2, a second fixed support seat 7-3, and a screw nut 7-4; the support seat 7-2 and the second fixed support seat 7-3 are respectively installed on the two end faces of the upper square plate 1-3 and the lower square plate 1-4 of the rack through fixing screws; the screw 7-1 is installed at the two ends of the support seat 7-2 and the second fixed support seat 7-3; the screw nut 7-4 is coaxially installed on the screw 7-1; the rotational movement of the screw 7-1 is converted into linear movement through the screw nut 7-4, which drives the tool holder assembly 5 and the support sheet metal assembly 6 to move linearly up and down.

[0013] Specifically, the longitudinal optical axis sliding guide assembly 8 includes an optical axis 8-1, a horizontal optical axis support seat 8-2, and a linear bearing 8-3; the horizontal optical axis support seat 8-2 is respectively installed on the two end faces of the upper square plate 1-3 and the lower square plate 1-4 of the rack through fixing screws; the optical axis 8-1 is installed at the two ends of the two horizontal optical axis support seats 8-2; the linear bearing 8-3 is coaxially installed with the optical axis 8-1, and provides a guiding function for the longitudinal screw sliding assembly 7.

[0014] Specifically, the manual rotating positioning table assembly 9 includes a rotating handle 9-1, a rotating table 9-2, a rotating table fixed circular table 9-3, a rotating shaft 9-4, a spring positioning bead 9-5, and a target centering block 9-6. The rotating table 9-2 and the rotating table fixed circular table 9-3 are provided with rotating fixing holes at corresponding positions. The rotating table 9-2 is rotatably installed above the rotating table fixed circular table 9-3 through the rotating shaft 9-4 inserted into the rotating fixing holes. The rotating table 9-2 is provided with a fixing hole for installing the target centering block 9-6. The target is fixedly installed on the rotating table 9-2 through the target centering block 9-6. The rotating handle 9-1 is fixedly installed on the outer side wall of the rotating table 9-2. The rotating table fixed circular table 9-3 is fixedly installed on the lower square plate 1-4 of the rack 1. The rotating table 9-2 and the rotating table fixed circular table 9-3 are fixed in series through the rotating shaft 9-4. The rotating table fixed circular table 9-3 is welded on the lower square plate 1-4 of the rack 1. The rotating table 9-2 can be manually rotated through the rotating handle 9-1. Two grooves that are 90° apart are processed on the circumferential surface of the rotating table fixed circular table 9-3. The spring positioning bead 9-5 is installed in the two grooves. The rotating table 9-2 can be rotated and positioned back and forth by 90°. Thus, the target can be rotated and positioned back and forth by 90°.

[0015] Specifically, the motor-driven chain assembly 10 includes a chain 10-1, a chain wheel 10-2, a DC speed reduction motor 10-3, and a motor mounting seat 10-4. The motor mounting seat 10-4 is welded on the lower end of the lower square plate 1-4 of the rack 1. The DC speed reduction motor 10-3 is fixed on the motor mounting seat 10-4. The motor shaft head is connected with the chain wheel 10-2 through a key groove. The lower end of the screw rod 7-1 of the longitudinal screw rod sliding assembly 7 is connected with the chain wheel 10-2. The chain 10-1 is installed on the chain wheel 10-2. The chain 10-1 is driven by the chain wheel 10-2. Another chain wheel 10-2 is driven. Thus, the rotation of the left chain wheel drives the rotation of the right chain wheel. The rotation of two longitudinal screw rods is completed by using one motor.

[0016] Specifically, the sensor assembly 11 includes a vibration sensor 11-1 and an acoustic emission sensor 11-2. The vibration sensor 11-1 is installed on the side edge of the tool holder 5-1 of the tool holder assembly 5 through magnetic attraction. The vibration frequency, amplitude, and frequency spectrum changes of the cutting tool 5-2 when it is pressed to cut the target are monitored to identify the abnormal vibration mode of the cutting tool 5-2 caused by wear. The acoustic emission sensor 11-2 is installed in front of the tool holder 5-1 of the tool holder assembly through magnetic attraction. High-frequency stress waves are captured to detect micro-cracks or material fatigue. The two sensors collect a large amount of sample data related to tool wear for a random forest regression model. The vibration sensor 11-1 and the acoustic emission sensor 11-2 are connected with a data acquisition card through connecting lines.

[0017] Specifically, the integrated display screen 12 includes a WEINVIEW display screen 12-1; the WEINVIEW display screen 12-1 is installed on the upper plate 1-3 of the rack, and the WEINVIEW display screen 12-1 is implanted with a trained random forest regression model to predict and display the service life of the cutter in real time.

[0018] The beneficial effects of the present application are:

[0019] The present application uses a large number of standard parts, and the proportion of standard parts is more than 85%, so the manufacturing cost of the whole machine is low. The size of the whole machine is 255mm*400mm*275mm, the volume is small, and the mass is only 8.5kg, which meets the use requirements of different spaces and different places; the modular design is adopted, and the whole machine includes a rack, a cutter spacing adjusting mechanism, a horizontal linear slide rail guide assembly, a slide rail guide support assembly, a cutter holder assembly, a support sheet metal assembly, a vertical screw sliding assembly, a vertical optical axis sliding guide assembly, a manual rotary positioning table assembly, a motor driven chain assembly, a sensor assembly and an integrated display screen. Each module can be installed separately and then assembled, which is beneficial to processing and production and convenient for maintenance. The sensor assembly and the integrated display screen of the present application realize real-time acquisition of cutter life data and real-time display of the prediction of the real cutter life through the following steps: sensor data acquisition→data preprocessing module→random forest model (trained) prediction→prediction value formatting→display driver layer→display screen. The cutter holder assembly of the present application realizes the target of quickly cutting target objects, and only one motor drive can realize simultaneous pressure cutting of six cutters, which has strong structural stability and high efficiency. The cutter spacing adjusting mechanism of the present application also realizes pre-separation of target objects of different sizes, has strong applicability, and meets the needs of different target objects. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 is a left and right isometric view of the present application;

[0022] Figure 3 is a front view of the present application;

[0023] Figure 4 is a left view of the present application;

[0024] Figure 5 is a right view of the present application;

[0025] Figure 6 is a bottom view of the present application;

[0026] Figure 7 is a rear view of the present application;

[0027] Figure 8 is the structural diagram of the rack of the present application;

[0028] Figure 9 is the structural diagram of the cutter spacing adjustment mechanism of the present application;

[0029] Figure 10 is the structural diagram of the transverse linear slide rail guide assembly of the present application;

[0030] Figure 11 is the structural diagram of the slide rail guide support assembly of the present application;

[0031] Figure 12 is the structural diagram of the cutter holder assembly of the present application;

[0032] Figure 13 is the structural diagram of the support sheet metal assembly of the present application;

[0033] Figure 14 is the structural diagram of the longitudinal screw slide assembly of the present application;

[0034] Figure 15 is the structural diagram of the longitudinal optical axis slide guide assembly of the present application;

[0035] Figure 16 is the structural diagram of the manual rotary positioning table assembly of the present application;

[0036] Figure 17 is the exploded view of the manual rotary positioning table assembly of the present application;

[0037] Figure 18 is the structural diagram of the motor-driven chain assembly of the present application;

[0038] Figure 19 is the structural diagram of the vibration sensor of the present application;

[0039] Figure 20 is the structural diagram of the acoustic emission sensor of the present application;

[0040] Figure 21 is the structural diagram of the integrated display screen of the present application.

[0041] The figure is marked: 1 frame, 2 cutter spacing adjustment mechanism, 3 transverse linear slide rail guide assembly, 4 slide rail guide support assembly, 5 tool holder assembly, 6 support sheet metal assembly, 7 longitudinal screw slide assembly, 8 longitudinal optical axis slide guide assembly, 9 manual rotary positioning table assembly, 10 motor driven chain assembly, 11 sensor assembly, 12 integrated display screen, 1-1 longitudinal beam, 1-2 cross beam, 1-3 upper square plate, 1-4 lower square plate, 1-5 table leg, 2-1 first fixed support seat, 2-2 custom positive and negative screw, 2-3 separate body type nut, 2-4 separate body type slide block, 2-5 outer hexagonal bolt, 3-1 linear guide rail, 3-2 slide block, 4-1 transverse aluminum square tube, 4-2 vertical aluminum square tube, 4-3 vertical aluminum square tube with opening, 5-1 tool holder, 5-2 cutter, 6-1 sheet metal support, 7-1 screw, 7-2 FF support seat, 7-3 second fixed support seat, 7-4 screw nut, 8-1 optical axis, 8-2 horizontal optical axis support seat, 8-3 linear bearing, 9-1 rotary handle, 9-2 rotary table, 9-3 rotary table fixed round table, 9-4 rotary shaft, 9-5 spring positioning bead, 9-6 target centering block, 10-1 chain, 10-2 sprocket, 10-3 DC speed reduction motor, 10-4 motor mounting seat, 11-1 vibration sensor, 11-2 acoustic emission sensor, 12-1 WEINVIEW display screen. DETAILED DESCRIPTION

[0042] The invention will be further described with reference to the drawings and examples, but the scope of the invention is not limited to the described range.

[0043] Example 1: as Figures 1-21As shown, the present application provides a tool life monitoring type target object pre-separation device based on random forest regression algorithm, rack 1, cutter spacing adjusting mechanism 2, transverse linear slide rail guide assembly 3, slide rail guide support assembly 4, tool holder assembly 5, support sheet metal assembly 6, longitudinal screw slide assembly 7, longitudinal optical axis slide guide assembly 8, manual rotary positioning table assembly 9, motor driven chain assembly 10, sensor assembly 11, integrated display screen 12; the cutter spacing adjusting mechanism 2 is installed above the tool holder assembly 5 and the support sheet metal assembly 6, and is used for adjusting the distance between the cutters at equal intervals; the transverse linear slide rail guide assembly 3 is installed below the slide rail guide support assembly 4, and provides a guiding action for adjusting the distance between the tool holders; the slide rail guide support assembly 4 is installed above the support sheet metal assembly 6; the tool holder assembly 5 is installed below the transverse linear slide rail guide assembly 3, and adjusts the distance between the cutters through the slide block; the support sheet metal assembly 6 is installed on the longitudinal screw slide assembly 7 and the longitudinal optical axis slide guide assembly 8; the longitudinal screw slide assembly 7 and the longitudinal optical axis slide guide assembly 8 are installed on the two end faces of the upper and lower square plates of the rack 1, and the longitudinal optical axis slide guide assembly 8 provides a guiding action for the movement of the longitudinal screw slide assembly 7; the manual rotary positioning table assembly 9 is installed on the lower end face of the rack 1, and provides a lifting and rotary positioning action for the target object; the motor driven chain assembly 10 is installed at the lower end of the rack 1, and is used for providing power for the longitudinal screw slide assembly 7, so as to drive the tool holder assembly 5 to move up and down; the sensor assembly 11 is installed on the tool holder assembly 5, and is used for collecting sample data related to the tool life for the random forest regression model; and the integrated display screen 12 is installed on the upper square plate 1-3 of the rack 1, and is used for displaying the tool life predicted by the random forest regression model in real time.

[0044] Further, the rack 1 comprises longitudinal beams 1-1, cross beams 1-2, an upper square plate 1-3, a lower square plate 1-4, and table legs 1-5; the cross beams 1-2 are fixed around the upper square plate 1-3 and the lower square plate 1-4, the upper square plate 1-3 and the lower square plate 1-4 are connected through the longitudinal beams 1-1 between the corresponding four corners, the bottom of the four corners of the lower square plate 1-4 is connected with the table legs 1-5, the longitudinal beams 1-1 (aluminum square tube), the cross beams 1-2 (aluminum square tube), the upper square plate 1-3, the lower square plate 1-4, and the table legs 1-5 are connected through welding at the mutual contact surfaces, the use of aluminum square tubes instead of aluminum profiles reduces the manufacturing cost of the device and reduces the complexity of the mechanism without affecting the structural strength; the upper square plate 1-3 and the lower square plate 1-4 are welded between the longitudinal beams 1-1 (aluminum square tube) and the cross beams 1-2 (aluminum square tube) to provide support for the longitudinal screw slide assembly 7 and the longitudinal optical axis slide guide assembly 8.

[0045] Further, the cutter spacing adjustment mechanism 2 comprises a first fixed support seat 2-1, a customized positive and negative screw 2-2, a separated body type nut 2-3, a separated body type slider 2-4, an external hexagonal bolt 2-5; the first fixed support seat 2-1 is a BF type support seat and is installed on the left side plate of the support sheet metal assembly by fixing screws; one end of the customized positive and negative screw 2-2 is installed on the first fixed support seat 2-1, and six separated body type nuts 2-3 and six separated body type sliders 2-4 are installed in the middle; the separated body type nut 2-3 and the separated body type slider 2-4 are installed on the customized positive and negative screw 2-2, the separated body type slider 2-4 is installed above the cutter holder assembly by fixing screws, and the separated body type nut 2-3 is installed on the side of the separated body type slider 2-4 by fixing screws; the external hexagonal bolt 2-5 is installed on the other end of the customized positive and negative screw 2-2, and the external hexagonal bolt 2-5 is screwed to drive the customized positive and negative screw 2-2 to rotate; the customized positive and negative screw is a special screw, the thread pitch of the screw is customized, and the pitch ratios of the positive and negative threads are 1:3:5, so as to realize the equal distance movement of the six separated body type nuts 2-3.

[0046] Further, the transverse linear slide rail guide assembly 3 comprises a linear guide rail 3-1 and a slider 3-2; the slider 3-2 is installed on the linear guide rail 3-1 by a sliding slot; the linear guide rail 3-1 is installed below the slide rail guide support assembly by fixing screws; the slider 3-2 is connected to the cutter holder in the cutter holder assembly by a fixing nut, and the slider 3-2 can move linearly on the linear guide rail 3-1, so that the slider 3-2 of the transverse linear slide rail guide assembly 3 can serve as a guide mechanism for the movement of the cutter holder assembly 5 when the cutter spacing adjustment mechanism 2 adjusts the cutter spacing.

[0047] Further, the slide rail guide support assembly 4 is a frame welded by four aluminum square tubes, two transverse aluminum square tubes 4-1 are connected to two linear guide rails 3-1 by fixing bolts, and two vertical aluminum square tubes 4-2 and 4-3 are welded on the support sheet metal assembly 6; one of the vertical aluminum square tubes 4-3 is cut to form a slot, so that a tool can be inserted into the slot to screw the external hexagonal bolt 2-5 of the customized positive and negative screw; the purpose of the slide rail guide support assembly 4 is to support the transverse linear slide rail guide assemblies 3 on both sides, and when the target object is pressed downward, a vertical upward force is generated, and the slide rail guide support assembly 4 can balance and support the vertical upward force.

[0048] Further, the tool holder assembly 5 includes six tool holders 5-1, six cutters 5-2; the tool holder 5-1 is provided with a cutter slot for mounting the cutter 5-2, and four circular holes are arranged on the side edge, the cutter 5-2 is provided with a circular hole matching the position and size of the circular hole on the tool holder 5-1, and after the cutter 5-2 is installed in the cutter slot, the cutter 5-2 and the tool holder 5-1 can be further fastened by installing bolts and nuts on the circular holes; a certain distance is left between each tool holder, and the purpose is to adjust the distance between the tool holders.

[0049] Further, the support sheet metal assembly 6 includes two sheet metal pieces 6-1, which are connected with the screw nuts 7-4 of the left and right longitudinal screws and the linear bearings 8-3 of the longitudinal optical axis sliding guide assembly through fixing screws; the sheet metal pieces are made to increase the strength of the structure and improve the stability of the mechanism.

[0050] Further, the longitudinal screw sliding assembly 7 includes a screw 7-1, a support seat 7-2, a second fixed support seat 7-3, and a screw nut 7-4; the support seat 7-2 adopts an FF type support seat, and the second fixed support seat 7-3 adopts an FK type support seat; the support seat 7-2 and the second fixed support seat 7-3 are respectively installed on the two end faces of the upper square plate 1-3 and the lower square plate 1-4 of the rack through fixing screws; the screw is installed at both ends of the two support seats; the screw nut 7-4 is coaxially installed on the screw, and the rotational movement of the screw is converted into linear movement through the screw nut 7-4, driving the tool holder assembly 5 and the support sheet metal assembly 6 to move linearly up and down.

[0051] Further, the longitudinal optical axis sliding guide assembly 8 includes an optical axis 8-1, a horizontal optical axis support seat 8-2, and a linear bearing 8-3; the horizontal optical axis support seat 8-2 is respectively installed on the two end faces of the upper square plate 1-3 and the lower square plate 1-4 of the rack through fixing screws; the optical axis 8-1 is installed at both ends of the two horizontal optical axis support seats 8-2; the linear bearing is coaxially installed with the optical axis 8-1 to provide a guiding effect for the longitudinal screw sliding assembly 7.

[0052] Further, the manual rotation positioning table assembly 9 includes a rotating handle 9-1, a rotating table 9-2, a rotating table fixed circular table 9-3, a rotating shaft 9-4, a spring positioning bead 9-5, and a target centering block 9-6. The rotating table 9-2 and the rotating table fixed circular table 9-3 are provided with rotating fixed holes at corresponding positions. The rotating table 9-2 is rotatably installed above the rotating table fixed circular table 9-3 through the rotating shaft 9-4 inserted into the rotating fixed holes. The rotating table 9-2 is provided with a fixed hole for installing the target centering block 9-6. The target is fixedly installed on the rotating table 9-2 through the target centering block 9-6. The rotating handle 9-1 is fixedly installed on the outer side wall of the rotating table 9-2. The rotating table fixed circular table 9-3 is fixedly installed on the lower square plate 1-4 of the rack 1. The rotating table 9-2 and the rotating table fixed circular table 9-3 are fixed together in series through the rotating shaft 9-4. The rotating table fixed circular table 9-3 is welded on the lower square plate 1-4 of the rack 1. The rotating table 9-2 can be manually rotated through the rotating handle 9-1. Two grooves that are 90° apart are processed on the circumferential surface of the rotating table fixed circular table 9-3. The spring positioning bead 9-5 is installed in the two grooves. The rotating table 9-2 is rotated and positioned back and forth by 90°. Thus, the target is rotated and positioned back and forth by 90°.

[0053] Further, the motor-driven chain assembly 10 includes a chain 10-1, a sprocket 10-2, a DC speed reduction motor 10-3, and a motor mounting seat 10-4. The motor mounting seat 10-4 is welded below the lower square plate 1-4 of the rack 1. The DC speed reduction motor 10-3 is fixed on the motor mounting seat 10-4. The motor shaft head is connected with the sprocket 10-2 through a key groove. The lower end of the screw rod 7-1 of the longitudinal screw rod sliding assembly 7 is connected with the sprocket 10-2. The chain 10-1 is nested on the sprocket 10-2. The sprocket 10-2 drives the chain 10-1 through the motor. Thus, another sprocket 10-2 is driven. The rotation of the left sprocket drives the rotation of the right sprocket. Thus, the rotation of two longitudinal screw rods is completed by using one motor.

[0054] Further, the sensor assembly 11 includes a vibration sensor 11-1 and an acoustic emission sensor 11-2. The vibration sensor 11-1 is installed on the side edge of the tool holder 5-1 of the tool holder assembly 5 through magnetic attraction. The vibration frequency, amplitude, and frequency spectrum changes of the cutting tool 5-2 when it is pressed to cut the target are monitored to identify the abnormal vibration mode of the cutting tool 5-2 caused by wear. The acoustic emission sensor 11-2 is installed in front of the tool holder 5-1 of the tool holder assembly through magnetic attraction. High-frequency stress waves are captured to detect micro-cracks or material fatigue. The vibration sensor 11-1 and the acoustic emission sensor 11-2 are connected with a data acquisition card through a connecting line. The two sensors collect a large number of sample data related to tool wear for a random forest regression model.

[0055] Further, the integrated display screen 12 comprises a WEINVIEW display screen 12-1; the WEINVIEW display screen 12-1 is installed on the upper plate 1-3 of the rack, and the WEINVIEW display screen 12-1 has implanted a trained random forest regression model to predict and display the life of the cutter in real time.

[0056] Further, the working process of the random forest regression algorithm used by the random forest regression model is as follows: 1. Data loading and preprocessing. Load the CSV file of the sensor data (the data is saved in the local SD card in real time through the data acquisition card), and preprocess the missing values and remove the duplicate data. 2. Feature engineering. Define the feature column and the target variable, add the time domain sliding window feature, update the feature column, and split the feature and the target. 3. Data set division. Divide the training set and the test set in time sequence, the training set is used to train the random forest regression model, and the test set is used to test the trained random forest regression model. 4. Constructing the random forest regression model, creating the pipeline of preprocessing and model, and then starting to train the model. 5. Model evaluation and parameter optimization. 6. The trained and optimized random forest regression model is used to test the test set to obtain the predicted value. 7. Model saving and loading, and implanting the random forest regression algorithm model into the integrated display screen. The random forest regression algorithm model collects the data of the sensor assembly 11 in real time, obtains the predicted value through the working process of the algorithm, and finally dynamically updates the text content through the Label component of Tkinter. The update function is called regularly to refresh the displayed predicted data, so as to achieve real-time prediction and display of the life of the cutter on the integrated display screen.

[0057] The target article cutting device of any one of the above is applied in the processing industry for cutting tea cakes.

[0058] The target article is placed on the manual rotary positioning table assembly 9, the cutter assembly 5 and the supporting sheet metal assembly 6 are driven by the longitudinal screw sliding assembly 7 to slide along the direction of the longitudinal optical axis sliding guide assembly 8 to press cut the target article downward, after the cutter assembly 5 finishes pressing cutting the target article, the cutter assembly 5 and the supporting sheet metal assembly 6 are driven by the longitudinal screw sliding assembly 7 to move upward along the direction of the longitudinal optical axis sliding guide assembly 8 to leave the pressing cutting position. The rotary table 9-2 is in the current position, the rotary handle 9-1 of the manual rotary positioning table assembly 9 is rotated to rotate the rotary table 9-2, after rotating 90° to the left, the manual rotary positioning table assembly 9 is clamped by the spring positioning bead 9-5, and then the cutter assembly 5 and the supporting sheet metal assembly 6 are driven by the longitudinal screw sliding assembly 7 to press cut the target article again, and the target article can be separated by the device.

[0059] Taking tea cakes as an example, the target article is cut as follows:

[0060] Initially, the tea cake is placed on the manual rotary positioning table assembly 9, and the tea cake is positioned without movement under the action of the target centering block 9-6. The knife holder assembly 5 and the support panel assembly 6 are driven by the longitudinal screw sliding assembly 7 to slide along the direction of the longitudinal optical axis sliding guide assembly 8 to press the tea cake downward. After the knife holder assembly 5 presses the tea cake downward, the knife holder assembly 5 and the support panel assembly 6 are driven by the longitudinal screw sliding assembly 7 to move upward along the direction of the longitudinal optical axis sliding guide assembly 8 to leave the position of pressing. The rotary table 9-2 is in the current position, and the rotary handle 9-1 of the manual rotary positioning table assembly 9 is rotated to rotate the rotary table 9-2. After rotating 90° to the left, the manual rotary positioning table assembly 9 is clamped by the spring positioning bead 9-5. After the knife holder assembly 5 and the support panel assembly 6 are driven by the longitudinal screw sliding assembly 7 to press the tea cake downward again along the direction of the longitudinal optical axis sliding guide assembly 8, the target can be completed by the device. When the longitudinal screw sliding assembly 7 leaves the position of pressing to the safe position, the staff can take away the tea cake which is pre-separated. If the staff wants to press the tea cake of different sizes, a tool for tightening the external hexagonal bolt can be used to tighten the external hexagonal bolt 2-5 of the cutting knife distance adjusting mechanism 2 on the right side of the device, so as to adjust the distance between the knife holder assemblies 5, thereby adapting to tea cakes of different sizes. The data acquisition card is connected in communication with the vibration sensor 11-1 and the acoustic emission sensor 11-2 through the serial port. After data acquisition, the collected data can be saved in the SD card in real time. Then the integrated display screen 12 can read the data in the SD card, and then the component displays the data predicted by the random forest regression model in real time. The random forest regression model can be deployed in the processor of the integrated display screen 12. In addition, the staff can also know the life prediction of the six cutting knives 5-2 through the integrated display screen 12. When the life of the six cutting knives 5-2 reaches below 15%, a new cutting knife 5-2 can be replaced for considering the pressing efficiency. The whole process of pressing is fast and efficient, and almost no noise is generated during the pressing process. The device has the advantages of simple structure, intelligence, small size, quietness and high efficiency.

[0061] The device has the advantages of simple structure, small size and high efficiency. The life of the cutting tool can be predicted and displayed in real time through the artificial intelligence algorithm. The distance between the six cutting knives can be adjusted through the adjusting mechanism, and the device can be suitable for the pre-separation operation of target objects of different sizes.

[0062] The specific embodiments of the application are described in detail above in combination with the drawings, but the application is not limited to the above embodiments. Within the knowledge of those skilled in the art, various changes can be made without departing from the spirit of the application.

Claims

1. A target pre-separation device based on a random forest regression algorithm for tool life monitoring, characterized by: The cutting knife distance adjusting mechanism (2) is installed above the knife holder assembly (5) and the support sheet metal assembly (6), the transverse linear slide rail guide assembly (3) is installed below the slide rail guide support assembly (4), the slide rail guide support assembly (4) is installed above the support sheet metal assembly (6); the knife holder assembly (5) is installed below the transverse linear slide rail guide assembly (3), the support sheet metal assembly (6) is connected with the longitudinal screw slide assembly (7) and the longitudinal optical axis slide guide assembly (8); the two ends of the longitudinal screw slide assembly (7) and the longitudinal optical axis slide guide assembly (8) are installed on the end faces of the upper square plate (1-3) and the lower square plate (1-4) of the rack (1), the manual rotary positioning table assembly (9) is installed on the end face of the lower square plate (1-4) of the rack (1), the motor-driven chain assembly (10) is installed at the lower end of the lower square plate (1-4) of the rack (1) and is connected with the longitudinal screw slide assembly (7), the sensor assembly (11) is connected on the knife holder assembly (5), and the integrated display screen (12) is installed on the upper square plate (1-3) of the rack (1); The cutting knife distance adjusting mechanism (2) includes a first fixed support seat (2-1), a customized positive and negative screw rod (2-2), a separated body type nut (2-3), a separated body type sliding block (2-4) and an external hexagonal bolt (2-5); the first fixed support seat (2-1) is fixedly installed on the left side plate of the support sheet metal assembly (6); one end of the customized positive and negative screw rod (2-2) is installed on the first fixed support seat (2-1), six separated body type nuts (2-3) and six separated body type sliding blocks (2-4) are installed in the middle of the customized positive and negative screw rod (2-2), the separated body type nuts (2-3) and the separated body type sliding blocks (2-4) are installed on the customized positive and negative screw rod (2-2), the separated body type sliding blocks (2-4) are fixedly installed above the knife holder assembly (5), and the separated body type nuts (2-3) are fixedly installed on the side edges of the separated body type sliding blocks (2-4); the external hexagonal bolt (2-5) is installed at the other end of the customized positive and negative screw rod (2-2), and the pitch ratios of the two positive and negative threads on the customized positive and negative screw rod (2-2) are all 1:3:5; The transverse linear slide rail guide assembly (3) includes a linear guide rail (3-1) and a sliding block (3-2); the sliding block (3-2) is slidably installed on the linear guide rail (3-1) through a sliding slot, and the linear guide rail (3-1) is fixedly installed below the slide rail guide support assembly (4); the sliding block (3-2) is fixedly connected with the knife holder in the knife holder assembly (5). ​ The slide rail guide support assembly (4) is fixedly connected into a rectangular frame by four aluminum square tubes, two transverse aluminum square tubes (4-1) are fixedly connected with two linear guides (3-1), the vertical aluminum square tube (4-2) and the vertical aluminum square tube with an opening (4-3) are fixed on the support sheet metal assembly (6), and the vertical aluminum square tube with an opening (4-3) is excavated into an opening slot; The manual rotary positioning table assembly (9) comprises a rotary handle (9-1), a rotary table (9-2), a rotary table fixed circular table (9-3), a rotary shaft (9-4), a spring positioning bead (9-5), and a target centering block (9-6). Corresponding positions of the rotary table (9-2) and the rotary table fixed circular table (9-3) are provided with rotary fixing holes. The rotary table (9-2) is rotatably installed above the rotary table fixed circular table (9-3) through the rotary shaft (9-4) inserted into the rotary fixing hole. The rotary table (9-2) is provided with a fixing hole for installing the target centering block (9-6) in the middle. The target is fixedly installed on the rotary table (9-2) through the target centering block (9-6). The rotary handle (9-1) is fixedly installed on the outer side wall of the rotary table (9-2). The rotary table fixed circular table (9-3) is fixedly installed below the lower square plate (1-4) of the rack (1). Two recesses that are 90 degrees apart are machined on the circumferential surface of the rotary table fixed circular table (9-3). The spring positioning bead (9-5) is installed in the recess. The sensor assembly (11) comprises a vibration sensor (11-1) and an acoustic emission sensor (11-2). The vibration sensor (11-1) is magnetically installed on the side of the tool holder assembly (5). The acoustic emission sensor (11-2) is magnetically installed on the front of the tool holder assembly (5). The vibration sensor (11-1) and the acoustic emission sensor (11-2) are connected to the data acquisition card through a connecting line.

2. The target pre-separation device based on the tool life monitoring of the random forest regression algorithm according to claim 1, characterized in that: The rack (1) further comprises longitudinal beams (1-1), cross beams (1-2), table legs (1-5), an upper square plate (1-3), and a lower square plate (1-4). The cross beams (1-2) are fixed around the upper square plate (1-3) and the lower square plate (1-4). The upper square plate (1-3) and the lower square plate (1-4) are connected through the longitudinal beams (1-1) between the corresponding four corners. The table legs (1-5) are connected to the bottom of the four corners of the lower square plate (1-4).

3. The tool life monitoring type target pre-separation device based on the random forest regression algorithm according to claim 1, characterized in that: The tool holder assembly (5) comprises tool holders (5-1) and cutters (5-2). The tool holders (5-1) are arranged at intervals. The tool holders (5-1) are provided with cutter grooves for installing the cutters (5-2). The tool holders (5-1) are provided with a plurality of round holes on the side. The cutters (5-2) are provided with round holes that match the positions and sizes of the round holes on the tool holders (5-1). The support sheet metal assembly (6) comprises two left and right sheet metal pieces (6-1). The left sheet metal piece (6-1) is fixedly connected with the left longitudinal screw sliding assembly (7) and the longitudinal optical axis sliding guide assembly (8). The right sheet metal piece (6-1) is fixedly connected with the right longitudinal screw sliding assembly (7) and the longitudinal optical axis sliding guide assembly (8).

4. The tool life monitoring type target pre-separation device based on the random forest regression algorithm according to claim 1, characterized in that: The longitudinal screw sliding assembly (7) comprises a screw (7-1), a support seat (7-2), a second fixed support seat (7-3), and a screw nut (7-4); the support seat (7-2) and the second fixed support seat (7-3) are fixedly installed on the end faces of the upper square plate (1-3) and the lower square plate (1-4) of the rack (1) respectively; the screw (7-1) is installed between the support seat (7-2) and the second fixed support seat (7-3); the screw nut (7-4) is coaxially installed with the screw (7-1), and the screw nut (7-4) is fixedly connected with the support sheet metal assembly (6).

5. The tool life monitoring target pre-separation device based on random forest regression algorithm according to claim 1, characterized in that: The longitudinal optical axis sliding guide assembly (8) comprises an optical axis (8-1), a horizontal optical axis support seat (8-2), and a linear bearing (8-3); the upper and lower horizontal optical axis support seats (8-2) are fixedly installed on the end faces of the upper square plate (1-3) and the lower square plate (1-4) of the rack (1) respectively; the optical axis (8-1) is installed between the upper and lower horizontal optical axis support seats (8-2); the linear bearing (8-3) is coaxially installed with the optical axis (8-1), and the linear bearing (8-3) is fixedly connected with the support sheet metal assembly (6).

6. The tool life monitoring target pre-separation device based on random forest regression algorithm according to claim 1, characterized in that: The motor-driven chain assembly (10) comprises a chain (10-1), a chain wheel (10-2), a DC speed reduction motor (10-3), and a motor mounting seat (10-4); the motor mounting seat (10-4) is fixed below the lower square plate (1-4) of the rack (1), the DC speed reduction motor (10-3) is fixed on the motor mounting seat (10-4), the motor shaft head is connected with the left chain wheel (10-2) through a key groove, the left chain wheel (10-2) is connected with the longitudinal screw sliding assembly (7), and the chain (10-1) is nested on the left and right chain wheels (10-2).

7. The tool life monitoring target pre-separation device based on random forest regression algorithm according to claim 1, characterized in that: The integrated display screen (12) comprises a WEINVIEW display screen (12-1); the WEINVIEW display screen (12-1) is installed on the upper square plate (1-3) of the rack (1), and the WEINVIEW display screen (12-1) has implanted a trained random forest regression model.

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