CN116922242B - Metal part polishing equipment - Google Patents

Abstract

The invention relates to the technical field of metal part processing, in particular to metal part polishing equipment, which comprises: the polishing device comprises a machine table, a polishing assembly arranged on the machine table, a collection assembly for collecting and classifying scraps generated in the polishing process, a cooling assembly for cooling the polishing assembly, a vibration compensation assembly for reducing vibration and noise of the polishing assembly and a control assembly. According to the metal part polishing equipment, the protection cover is used for preliminarily preventing dust, metal scraps are preliminarily collected through the baffle plate, and nonmetal scraps are filtered; the metal scraps can be further collected, filtered, washed and screened through the collecting box, and the collected wastewater is discharged.

Description

Metal parts polishing equipment

Technical Field

The invention relates to the technical field of metal parts processing, in particular to a metal parts polishing device.

Background Art

Polishing is the process of brightening the surface of a workpiece using other tools or methods, with the main purpose of obtaining a smooth surface or mirror finish. Mechanical polishing is a polishing method that involves cutting and plastic deformation of the material surface to remove the convex parts after polishing to obtain a smooth surface. Generally, oilstones, wool wheels, sandpaper, etc. are used, and manual operations are the main method. For special parts such as the surface of a rotating body, auxiliary tools such as a turntable can be used. For parts with high surface quality requirements, ultra-fine grinding and polishing methods can be used. Water is usually required during the polishing of stainless steel to control the surface temperature of the stainless steel and prevent deformation caused by polishing.

The invention with application number CN201910655394.7 relates to the technical field of polishing equipment research and development design, and in particular to a spray dust removal device for a polishing machine and a polishing machine. The present invention adopts the following technical scheme: the overflow port of the overflow plate is arranged relative to the steam and water recovery port, and a water pump is arranged to connect the water collection tank through a water supply pipe. The overflow plate includes an overflow plate body and an overflow assembly arranged on the overflow plate body, and the overflow assembly is arranged on one side of the top of the overflow plate body. The overflow assembly on the overflow plate body includes a sawtooth overflow section that is spaced apart on the top of the overflow plate body. The advantages of the present invention are: it can realize humidification of dust particles in the polishing process, reduce the possibility of explosion and inhalation by staff, and in conjunction with the double overflow of the sawtooth overflow section or the through-hole overflow section, it can maintain a composite double water curtain, and the dust removal effect is better. However, the patent can only humidify dust particles, but cannot collect and classify dust particles.

Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects.

Summary of the invention

The purpose of the present invention is to provide a metal parts polishing device which can effectively solve the above technical problems.

In order to achieve the purpose of the present invention, the following technical scheme is adopted:

A metal parts polishing device, comprising: a machine platform, a polishing assembly installed on the machine platform, a collecting assembly for collecting and classifying waste chips generated during the polishing process, a cooling assembly for cooling the polishing assembly, a vibration compensation assembly for reducing vibration and noise of the polishing assembly, and a control assembly;

The polishing assembly comprises: a grinding disc and a motor for driving the grinding disc to polish;

The collecting assembly includes: a protective cover to prevent waste from splashing, a filtering assembly to perform preliminary filtering on the waste, and a classification collecting assembly to further filter and collect the waste and dust;

The filter assembly comprises: a baffle rotatably mounted on the protective cover, a filter screen 1 detachably mounted on the baffle, and an electromagnet 5 for adsorbing metal scraps on the filter screen 1;

The classification collection assembly includes: a collection box slidably mounted below the polishing assembly, an electromagnet three, an electromagnet four, and a rebound member for increasing the moving power of the collection box;

The collection box comprises: a box body 1 for collecting metal debris; a box body 2 for collecting non-metal debris; an electromagnet 1 installed on the box body 1 and opposite to the electromagnet 3; an electromagnet 2 installed on the box body 2 and opposite to the electromagnet 4; a sliding frame slidably installed on the box body 1 and the box body 2, a filter screen 2 installed on the sliding frame, and an electromagnet 6 for adsorbing metal debris on the filter screen 2 installed on the filter screen 2;

The control component includes: a control unit, a displacement detection unit for detecting the position information of the collection box, and a speed detection unit for detecting the speed of the motor; the control unit controls the magnetic poles of the electromagnet one, the electromagnet two, the electromagnet three, and the electromagnet four according to whether the polishing component is polishing, so as to control the box one or the box two to move to the bottom of the polishing component; and controls whether the electromagnet one and the electromagnet six adsorb metal debris.

Furthermore, the baffle is a cross-shaped baffle, and a curved surface for guiding the air and water flow toward the box body 1 is fixedly provided on the cross-shaped baffle; an inclined block is provided on the curved surface, and the filter 1 matches the curved surface.

Furthermore, the collection box is provided with a first push block for driving the baffle to rotate in a clockwise direction, and a second push block for driving the baffle to rotate in a counterclockwise direction.

Furthermore, the cooling component includes: a nozzle for spraying water on the workpiece, a solenoid valve 1 for controlling whether the nozzle sprays water, and a push switch electrically connected to the solenoid valve 1;

The sliding frame is slidably installed in the sliding groove of the collection box through a pulley, and the push switch is respectively installed at the starting point and the end point of the movement track of the collection box; when the collection box slides to the starting point or the end point, it abuts against the push switch;

A second solenoid valve is also installed on the second box;

The control unit controls the water spraying and the water spraying amount of the nozzle according to the time of pressing the switch at the starting point of the compression of the collection box; the control unit controls the second drainage of the box body according to the time of pressing the switch at the end point of the compression.

Furthermore, the sliding frame is slidably installed in the slide groove of the collection box through a pulley, and the sliding frame and the pulley are supported by a telescopic rod and a spring; an arc-shaped protrusion is provided on the slide groove; shock-absorbing pads are installed at the starting point and end point of the slide groove path; and a lock is installed at the end point of the slide groove path.

Furthermore, when the collection box abuts against the push switch at the starting point, the push switch feeds back a first signal to the control unit. After receiving the first signal, the control unit controls whether the electromagnet 5 works according to the working state of the polishing assembly.

When the polishing assembly is working, the speed detection unit feeds back the speed signal of the motor to the control unit, and the control unit controls the electromagnet five to be energized, and controls the electromagnet one to attract the electromagnet three, and controls the electromagnet two to repel the electromagnet four; the control unit controls the nozzle to spray water on the workpiece being polished, and controls the amount of water sprayed, according to the speed of the motor, the time when the collection box abuts against the push switch, and the polishing time;

When the polishing assembly is not working, the speed detection unit feeds back a stop signal to the control unit, and the control unit controls the electromagnet five to be powered off, and controls the electromagnet six to be powered on after a preset time, and controls the electromagnet one and the electromagnet three to repel each other, and controls the electromagnet two and the electromagnet four to attract each other;

When the collection box contacts the push switch at the end point, the push switch feeds back a second signal to the control unit, and the control unit controls the opening of the second solenoid valve to discharge the waste liquid in the collection box.

Furthermore, the control unit controls the water spraying amount according to the rotation speed and polishing time. Assuming that the output flow of the solenoid valve is the dependent variable Q, the rotation speed of the motor is the independent variable n, and the working duration of the motor is the independent variable t, a multivariate linear regression model is established, which is expressed as the following formula:

Q＝β0+β1*n+β2*t+ε

Among them, β0 is the intercept, β1 and β2 are the coefficients of the independent variables, and ε is the error term.

Furthermore, the control unit controls the magnetic poles and the magnitude of the magnetic force of the electromagnet according to the displacement signal detected by the displacement detection unit.

Compared with the prior art, the present invention has the following beneficial effects: a metal parts polishing device of the present invention not only performs preliminary dust prevention through a protective cover, performs preliminary collection of metal waste chips through a baffle, and filters non-metallic waste chips; it can also further collect, filter, clean, and screen the metal waste chips after preliminary filtration through a collection box, and discharge the collected wastewater.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

FIG1 is a schematic structural diagram of a metal parts polishing device according to the present invention;

FIG2 is a schematic diagram of the structure of the classification and collection assembly of the present invention;

FIG3 is a schematic diagram of the structure of a collecting assembly of the present invention;

FIG4 is a schematic structural diagram of a collection box of the present invention;

FIG5 is a top view of the collection box of the present invention;

FIG6 is a schematic structural diagram of a baffle according to the present invention;

FIG7 is a cross-sectional view of the collecting assembly of the present invention;

FIG8 is a partial enlarged view of portion A in FIG7 ;

FIG. 9 is a circuit diagram of a metal parts polishing device according to the present invention.

In the figure: 1, machine; 2, polishing component; 3, collection component; 21, grinding disc; 22, motor; 31, protective cover; 32, filter component; 33, classification collection component; 321, baffle; 322, filter screen 1; 323, electromagnet 5; 331, collection box; 332, electromagnet 3; 333, electromagnet 4; 334, rebound part; 3311, box body 1; 3312, box body 2; 33111, electromagnet 1; 33112, electromagnet 2; 3313, sliding frame; 33131 , filter screen two; 33132, electromagnet six; 3211, arc surface; 3212, inclined block; 3314, first push block; 3315, second push block; 33113, push switch; 33131, pulley; 33132, telescopic rod; 33133, spring; 3316, slide groove; 33161, arc-shaped protrusion; 33162, shock-absorbing pad; 33163, lock; 41, control unit; 42, displacement detection unit; 43, speed detection unit; 5, solenoid valve one; 6, solenoid valve two.

DETAILED DESCRIPTION

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

As shown in Figures 1 to 9, a metal parts polishing device of the present invention includes: a machine table 1, a polishing component 2 installed on the machine table 1, a collecting component 3 for collecting and classifying waste chips generated during the polishing process, a cooling component for cooling the polishing component 2, a vibration compensation component for reducing vibration and noise during the operation of the polishing component 2, and a control component.

The polishing assembly 2 includes: a grinding disc 21 and a motor 22 for driving the grinding disc 21 for polishing.

The collecting component 3 includes: a protective cover 31 for preventing waste from splashing, a filtering component 32 for preliminary filtering of waste, and a classification collecting component 333 for further filtering, collecting or discharging waste and dust; wherein the protective cover 31 is a transparent protective cover 31 for easy observation.

The filter assembly 32 includes: a baffle 321 rotatably mounted on the protective cover 31, a filter screen 322 detachably mounted on the baffle 321, and an electromagnet 323 for absorbing metal scraps on the filter screen 322; wherein the baffle 321 is a cross-shaped baffle 321, and the cross-shaped baffle 321 is provided with an arc surface 3211 for guiding the air and water flow to the collection box 331. The design of the arc surface 3211 can guide the water and air splashed on the baffle 321 to the collection box 331 during polishing; an inclined block 3212 is provided on the arc surface 3211, and the angle of the inclined block 3212 is adjustable and can be disassembled for easy replacement. The inclined block 3212 is used to help The position of the cross-shaped baffle 321 is limited, and on the other hand, it is used to further guide the flow of water and air; the filter screen 322 is matched with the arc surface 3211 to form an arc, so that when the filter screen 322 is filtering, the air and water splashed on the filter screen 322 are guided, and at the same time, the waste debris is guided into the groove formed by the bending of the arc bottom, so that the waste debris is collected through the groove, and the waste debris collected in the groove is preliminarily cleaned by the guided water flow and air; it can be seen that through the design of the arc surface, not only the direction of water flow, air and waste debris can be guided, but also the waste debris can be cleaned by the guided water flow and air; when the cross-shaped baffle 321 rotates, the waste debris is poured onto the slide The electromagnet 5 323 is mounted on the filter screen 1 322, and the filter screen 1 322 can also be designed as the electromagnet 5 323, so that the filter screen 1 322 absorbs metal scraps while filtering, and the water flow and air will preliminarily clean the impurities on the surface of the metal scraps; a magnetic attraction piece that is magnetically attracted to the electromagnet 5 323 is installed on the protective cover 31, and the magnetic attraction piece is magnetically attracted to the electromagnet 5 323 to limit the position of the cross-shaped baffle 321. The magnetic attraction piece can be a metal sheet or an electromagnet, so that the position of the cross-shaped baffle 321 can be fixed when needed, and the cross-shaped baffle 321 can be separated from the protective cover 31 when not needed; the protective cover 31 is also provided with a A waterproof cloth is provided to prevent water and air from splashing for too long a distance. A retractable frame is arranged on the inner side of the waterproof cloth. The frame is made of non-metallic material. A magnet is arranged at the bottom of the frame. The magnetic pole of the magnet is opposite to the bottom of the electromagnet 5 323 and is the same as the top magnetic pole of the electromagnet 5 323. When the electromagnet 5 323 is working, the magnet and the electromagnet 5 323 are attracted to each other, forcing the frame to extend and driving the waterproof cloth to extend. At this time, the splashing water will be blocked by the waterproof cloth. When the electromagnet 5 323 is not working, the frame automatically retracts due to its own elastic force, thereby avoiding interference with the cross-shaped baffle 321. The frame can be automatically retracted by an elastic rope, a spring, etc., as long as the frame can be automatically retracted when the external force is lost.

The classification collection component 333 includes: a collection box 331 slidably installed under the polishing component 2, an electromagnet 332 for moving the collection box 331 to one end, an electromagnet 433 for sliding the collection box 331 to the other end, and a rebound member 334 for increasing the moving power of the collection box 331; the collection box 331 is used to collect metal scraps, non-metal scraps, and dust generated during the polishing process; the rebound member 334 can be a spring 33133, or other elastic material, as long as the rebound member 334 installed on one side is moved when the electromagnet 1 33111 and the electromagnet 3 332 are mutually During attraction, elastic potential energy is stored, and when electromagnet one 33111 and electromagnet three 332 repel each other, the elastic potential energy is released to increase the moving power of the collection box 331; the rebound member 334 installed on the other side stores elastic potential energy when electromagnet two 33112 and electromagnet four 333 attract each other, and releases elastic potential energy to increase the moving power of the collection box 331 when electromagnet two 33112 and electromagnet four 333 repel each other; the rebound member 334 can be installed at both ends of the moving direction of the collection box 331, and can also be installed in the inner cavity of the machine 1 facing the collection box 331.

The collecting box 331 comprises: a box body 1 3311 for collecting metal scraps; a box body 2 3312 for collecting non-metal scraps; an electromagnet 1 33111 mounted on the box body 1 3311 and opposite to the electromagnet 3 332; an electromagnet 2 33112 mounted on the box body 2 3312 and opposite to the electromagnet 4 333; a sliding frame 3313 slidably mounted on the box body 1 3311 and the box body 2 3312, a filter screen 2 33131 mounted on the sliding frame 3313, and an electromagnet 6 33132 for absorbing metal scraps on the filter screen 2 33131 mounted on the filter screen 2 33131; a first push block 3314 for driving the baffle 321 to rotate in a clockwise direction, and a second push block 3315 for driving the baffle 321 to rotate in a counterclockwise direction are mounted on the collecting box 331; when the electromagnet 332 and the electromagnet 1 33111 are attracted to each other, the electromagnet 4 333 and the electromagnet 333 are attracted to each other. Magnet No. 2 33112 repels each other, and box No. 1 3311 moves to the bottom of polishing assembly 2; conversely, electromagnet No. 332 attracts electromagnet No. 2 33112, and box No. 2 3312 moves to the bottom of polishing assembly 2, so that when polishing assembly 2 is in different states, metal waste or non-metal waste is collected through box No. 1 3311 or box No. 2 3312; filter No. 2 33131 is used for secondary filtering of metal waste after preliminary filtering by filter No. 1 322, and electromagnet No. 6 33132 is used for adsorbing metal waste on filter No. 2 33131. When polishing assembly 2, due to the influence of arc surface 3211 of cross-shaped baffle 321, part of water flow will directly flow to filter No. 2 33131, so as to perform secondary cleaning on metal waste on filter No. 2 33131, which can not only play a filtering role, but also perform secondary cleaning on metal waste.

A slide groove 3316 is provided on the inner side of the collection box 331 at a position above the box body 1 3311 and the box body 2 3312. The sliding frame 3313 is slidably installed in the slide groove 3316 through the pulley 33131. When the collection box 331 moves, the sliding frame 3313 slides in the slide groove 3316 under force. An arc-shaped protrusion 33161 is provided on the slide groove 3316. The pulley 33131 is installed at the bottom of the sliding frame 3313 through the telescopic rod 33132. A spring 33133 is installed on the outer side or the inner side of the telescopic rod 33132. When the pulley 33131 slides along the slide groove 3316 and passes through the arc-shaped protrusion 33161, it will shake up and down, so that the sliding frame 3313 shakes up and down, and at the same time, under the action of the telescopic rod 33132 and the spring 33133, a vibration that lasts for a certain period of time will be formed, thereby improving the shaking effect; in addition, when the sliding frame 3313 moves to the end point, it will be forced to rebound, so that the sliding frame 3313 shakes horizontally, and finally shakes longitudinally and transversely, which has a better screening effect on the metal waste on the filter screen 2 33131; shock-absorbing pads 33162 are installed at the starting point and end point of the slide 3316 path to prevent the sliding frame 3313 from colliding with the collection box 331 and causing damage; a lock buckle 33163 is installed at the end point of the slide 3316 path. When the lock buckle 33163 is opened , the sliding frame 3313 can be taken out, and when the lock buckle 33163 is locked, the sliding frame 3313 cannot be taken out; the control unit 41 can also control the intermittent attraction or repulsion between the electromagnet 1 33111 and the electromagnet 3 332, as well as the attraction or repulsion between the electromagnet 2 33112 and the electromagnet 4 333 during the movement of the collection box 331, thereby improving the shaking effect of the installation frame and thus improving the screening effect; through the intermittent repulsion between the above four electromagnets, the collection box 331 can have a buffering process before moving in the reverse direction, so that the collection box 331 can first buffer and decelerate, and then move in the reverse direction. The buffering and deceleration process can reduce impact and stress, and can Protect related components and extend the life of the equipment; at the same time, when the collection box 331 does not move into place, it can first attract and then repel each other; in addition, when moving in the opposite direction, the spring and the above electromagnets can cooperate to form a thrust for reverse movement, and precise control can be achieved by only adjusting the magnetic force of the electromagnet; and, when the collection box 331 needs to be moved back and forth, it only needs to be adjusted to attract or repel each other. This design can improve the stability and durability of the equipment and reduce failures and maintenance costs. Compared with the rigid connection to drive the movement of the collection box 331, controlling the movement of the collection box 331 by controlling the magnetic poles of the above four electromagnets is more suitable for this device.

The cooling component includes: a nozzle for spraying water on the workpiece, a solenoid valve 5 for controlling whether the nozzle sprays water, and a push switch 33113 electrically connected to the solenoid valve 5; the push switch 33113 is respectively installed at the starting point and the end point of the moving trajectory of the collection box 331; when the collection box 331 slides to the starting point or the end point, it abuts against the push switch 33113; wherein the box body 3311 for collecting metal scraps is located below the polishing component 2 as the starting point.

A solenoid valve 26 is also installed on the box body 3312. The control unit 41 controls the solenoid valve 26 to control whether the waste water in the collection box 331 is discharged; the control unit 41 controls the water spraying of the nozzle and the amount of water sprayed by the nozzle according to the time of pressing the switch 33113 at the starting point of pressing the collection box 331; the control unit 41 also controls the drainage of the box body 3312 according to the time of pressing the switch 33113 at the end point of pressing. The nozzle can be a rotating nozzle. In addition to spraying water on the workpiece, it can also spray water on the dust cover, so that the dust cover can be cleaned while spraying water to cool the workpiece.

The vibration compensation component includes: a vibration sensor that detects the vibration signal generated by the mechanical equipment and converts the vibration signal into an electrical signal; an acceleration sensor that detects the acceleration signal and converts the acceleration signal into an electrical signal; a control unit 41 that receives the vibration signal and acceleration signal transmitted by the sensor and processes them according to a preset control strategy; an actuator that compensates for the vibration through electromagnetic force, hydraulic pressure, mechanical force, air pressure, etc. according to the compensation signal calculated by the control unit 41; a feedback sensor that detects the compensation effect and transmits feedback information of the compensation effect to the control unit 41 so that the control unit 41 can adjust the compensation strategy in time. By setting the vibration compensation component, the vibration generated by the equipment during the polishing process can be reduced, and the vibration compensation component stops working at the end of polishing.

The control component includes: a control unit 41, a displacement detection unit 42 for detecting the position information of the collection box 331, and a speed detection unit 43 for detecting the speed of the motor 22; the control unit 41 controls the magnetic poles of electromagnet 1 33111, electromagnet 2 33112, electromagnet 3 332, and electromagnet 4 333 according to whether the polishing component 2 is polishing, so as to control box 1 3311 or box 2 3312 to move to the bottom of the polishing component 2; and controls whether electromagnet 1 33111 and electromagnet 6 33132 adsorb metal debris.

When the collection box 331 abuts against the push switch 33113 at the starting point, the push switch 33113 feeds back a first signal to the control unit 41. After receiving the first signal, the control unit 41 controls whether the electromagnet 5 323 works according to the working state of the polishing component 2; if the polishing component 2 works, the electromagnet 5 323 is controlled to work; if the polishing component 2 does not work, the electromagnet 5 323 is controlled not to work.

When the polishing assembly 2 is working, the speed detection unit 43 feeds back the speed signal of the motor 22 to the control unit 41, and the control unit 41 controls the electromagnet five 323 to be energized, and controls the electromagnet one 33111 and the electromagnet three 332 to attract each other, and controls the electromagnet two 33112 and the electromagnet four 333 to repel each other. At this time, the box one 3311 is located below the polishing assembly 2, which is used to collect metal waste chips through the box one 3311, and collect non-metallic waste chips filtered by the filter one 322 through the box two 3312; the control unit 41 controls the nozzle to spray water on the workpiece being polished, and controls the water spraying amount according to the speed of the motor 22, the time when the collection box 331 and the press switch 33113 are in contact, and the polishing time; wherein the control unit 41 controls the water spraying amount according to the speed and the polishing time, assuming that the output flow of the solenoid valve is the dependent variable Q, the speed of the motor 22 is the independent variable n, and the working duration of the motor 22 is the independent variable t, a multivariate linear regression model is established, which is expressed as the following formula:

Q＝β0+β1*n+β2*t+ε

Among them, β0 is the intercept, β1 and β2 are the coefficients of the independent variables, and ε is the error term.

After the grinding is completed, when the polishing assembly 2 is not working, the speed detection unit 43 feeds back a signal that the polishing assembly 2 stops working to the control unit 41, and the control unit 41 controls the electromagnet five 323 to be powered off. At this time, the metal scraps adsorbed by the electromagnet five 323 fall off from the filter one 322 and fall onto the shaking frame 3313; the control unit 41 controls the electromagnet six 33132 to be powered on after a preset time, and the preset time can be set according to the actual situation; after the electromagnet six 33132 is powered on, the control unit 41 controls the electromagnet one 33111 and the electromagnet three 332 to repel each other. At this time, the elastic member moves the collection box 331 to the end point under the joint action of electromagnet 1 33111 and electromagnet 3 332; at the same time, the control unit 41 controls electromagnet 2 33112 and electromagnet 4 333 to attract each other, so that the collection box 331 moves to the end point. After the collection box 331 moves to the end point, it abuts against the push switch 33113 at the end point; at this time, the control unit 41 controls electromagnet 2 33112 and electromagnet 4 333 to attract or repel each other, so that the collection box 331 reciprocates or does not reciprocate, so as to further drive the sliding frame 3313 to shake or not shake.

When the collection box 331 abuts against the push switch 33113 at the end point, the push switch 33113 feeds back a second signal to the control unit 41. After receiving the second signal, the control unit 41 controls the opening of the solenoid valve 26 to discharge the waste liquid in the collection box 331; it also includes: a liquid level detection unit for detecting the liquid level in the collection box 331, and determines whether to discharge the waste water by detecting the liquid level of the collection box 331. The liquid level detection unit can be a float switch, a liquid level sensor, etc.

The control unit 41 also controls the magnetic pole and magnetic force of the electromagnet according to the displacement signal detected by the displacement detection unit 42. When the collection box 331 stops moving, but the displacement detection unit 42 detects that the position of the collection box 331 is not in place, it feeds back an abnormal signal to the control unit 41, and the control unit 41 controls to increase the output current or the magnetic pole of the electromagnet; the control unit 41 controls the output current by the following steps: Step 1: Circular control current; Step 2: Input the error value to the control unit 41 according to the displacement signal fed back by the displacement detection unit 42, and the control unit 41 calculates the error error = displacement[i] - lastdisplacement; Step 3: The control unit 41 calculates the output current current = Kp*error+Kd*(error-lasterror)/dt; Step 4: The control unit 41 outputs an updated current output = current; Step 5: The displacement detection unit 42 verifies the position of the collection box 331 after the output current; Step 6: The control unit 41 further increases or decreases the output current according to the verification result; wherein Kp represents the proportional gain, Kd represents the differential gain and dt represents the time step.

The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims (4)

1. A metal parts polishing device, characterized in that it comprises: a machine platform, a polishing assembly installed on the machine platform, a collecting assembly for collecting and classifying waste chips generated during the polishing process, a cooling assembly for cooling the polishing assembly, and a control assembly; The polishing assembly comprises: a grinding disc and a motor for driving the grinding disc to polish; The collecting assembly includes: a protective cover to prevent waste from splashing, a filtering assembly to perform preliminary filtering on the waste, and a classification collecting assembly to further filter and collect the waste and dust; The filter assembly comprises: a baffle rotatably mounted on the protective cover, a filter screen 1 detachably mounted on the baffle, and an electromagnet 5 for adsorbing metal scraps on the filter screen 1; The classification collection assembly includes: a collection box slidably mounted below the polishing assembly, an electromagnet three, an electromagnet four, and a rebound member for increasing the moving power of the collection box; The collection box comprises: a box body 1 for collecting metal debris; a box body 2 for collecting non-metal debris; an electromagnet 1 installed on the box body 1 and opposite to the electromagnet 3; an electromagnet 2 installed on the box body 2 and opposite to the electromagnet 4; a sliding frame slidably installed on the box body 1 and the box body 2, a filter screen 2 installed on the sliding frame, and an electromagnet 6 for adsorbing metal debris on the filter screen 2 installed on the filter screen 2; The control component includes: a control unit, a displacement detection unit for detecting the position information of the collection box, and a speed detection unit for detecting the speed of the motor; the control unit controls the magnetic poles of the electromagnet 1, the electromagnet 2, the electromagnet 3, and the electromagnet 4 according to whether the polishing component is polishing, so as to control the box body 1 or the box body 2 to move to the bottom of the polishing component; and controls whether the electromagnet 1 and the electromagnet 6 adsorb metal debris; The baffle is a cross-shaped baffle, on which an arc surface for guiding the air and water flow to the box body 1 is fixedly arranged; an inclined block is arranged on the arc surface, and the filter screen 1 matches the arc surface; a first push block for driving the baffle to rotate in a clockwise direction and a second push block for driving the baffle to rotate in a counterclockwise direction are installed on the collection box; The cooling component includes: a nozzle for spraying water on the workpiece, a solenoid valve 1 for controlling whether the nozzle sprays water, and a push switch electrically connected to the solenoid valve 1; The sliding frame is slidably installed in the sliding groove of the collection box through a pulley, and the push switch is respectively installed at the starting point and the end point of the movement track of the collection box; when the collection box slides to the starting point or the end point, it abuts against the push switch; A second solenoid valve is also installed on the second box; The control unit controls the water spraying and the water spraying amount of the nozzle according to the time of pressing the switch at the pressing start point of the collection box; the control unit controls the second drainage of the box according to the time of pressing the switch at the pressing end point; The sliding frame is slidably installed in the slide groove of the collection box through a pulley, and the sliding frame and the pulley are supported by a telescopic rod and a spring; an arc-shaped protrusion is provided on the slide groove; shock-absorbing pads are installed at the starting point and end point of the slide groove path; a lock buckle is installed at the end point of the slide groove path; When the collection box abuts against the push switch at the starting point, the push switch feeds back a first signal to the control unit. After receiving the first signal, the control unit controls whether the electromagnet 5 works according to the working state of the polishing assembly. When the polishing assembly is working, the speed detection unit feeds back the speed signal of the motor to the control unit, and the control unit controls the electromagnet five to be energized, and controls the electromagnet one to attract the electromagnet three, and controls the electromagnet two to repel the electromagnet four; the control unit controls the nozzle to spray water on the workpiece being polished, and controls the amount of water sprayed, according to the speed of the motor, the time when the collection box abuts against the push switch, and the polishing time; When the polishing assembly is not working, the speed detection unit feeds back a stop signal to the control unit, and the control unit controls the electromagnet five to be powered off, and controls the electromagnet six to be powered on after a preset time, and controls the electromagnet one and the electromagnet three to repel each other, and controls the electromagnet two and the electromagnet four to attract each other; When the collection box contacts the push switch at the end point, the push switch feeds back a second signal to the control unit, and the control unit controls the opening of the second solenoid valve to discharge the waste liquid in the collection box. 2. A metal parts polishing device as described in claim 1, characterized in that a magnetic attraction component that magnetically attracts the electromagnet is installed on the protective cover. 3. A metal parts polishing device as claimed in claim 1, characterized in that the control unit controls the water spraying amount according to the rotation speed and polishing time. Assuming that the output flow of the solenoid valve is the dependent variable Q, the rotation speed of the motor is the independent variable n, and the working duration of the motor is the independent variable t, a multivariate linear regression model is established, which is expressed as the following formula: Q＝β0+β1*n+β2*t+ε Among them, β0 is the intercept, β1 and β2 are the coefficients of the independent variables, and ε is the error term. 4. A metal parts polishing device as described in claim 3, characterized in that the control unit controls the magnetic poles and magnetic force of the electromagnet according to the displacement signal detected by the displacement detection unit.