A detection device with impurity filtering function for metal working fluid production

Abstract

The application discloses a detection device with impurity filtering function for metal processing liquid production, and relates to the technical field of metal processing liquid detection.The detection device comprises a shell, a temperature adjusting device, a test device and a filter screen, the shell is provided with a temperature adjusting cavity and a detection cavity, the temperature adjusting device is arranged in the temperature adjusting cavity, the test device is connected with the detection cavity, the temperature adjusting cavity and the detection cavity are arranged in sequence along the conveying direction of the metal processing liquid, and the filter screen is connected with the temperature adjusting device.The shell serves as a main installation base, the produced metal processing liquid is guided into the temperature adjusting cavity during the production and processing of the metal processing liquid, and is automatically temperature adjusted first to prevent temperature fluctuation from affecting the detection precision of lubricity;after the automatic temperature adjustment, the metal processing liquid is sent into the detection cavity, the lubricity of the metal processing liquid is automatically detected through the test device, the filter screen is fixed through the temperature adjusting device, and thus the metal processing liquid is automatically filtered, so that impurities are prevented from entering the detection cavity and affecting the detection precision of lubricity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal processing fluid, and particularly relates to a detection device with impurity filtering function for metal processing fluid production. BACKGROUND

[0002] In recent years, with the continuous development of automation, a large amount of processing waste heat is generated in the processing process. In order to ensure the safety of equipment and the processing quality, metal processing fluid is used for heat dissipation and lubrication in the processing process.

[0003] There are various types of metal processing fluid. For example, in the production process, metal processing fluid is obtained by adding graphene material and 5%-10% water and through a certain processing technology, and the product has strong rust prevention ability and lubrication performance. However, a part of impurities will be generated in the production process of the metal processing fluid, which will affect the later use process. The current detection method mostly adopts the way of sampling inspection, and cannot continuously detect the metal processing fluid, thereby affecting the production quality.

[0004] In addition, the processing process of the metal processing fluid will also cause the temperature to fluctuate in a large range, thereby affecting the subsequent detection precision. SUMMARY

[0005] The present application aims to provide a detection device with impurity filtering function for metal processing fluid production, so as to solve the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] The detection device comprises a shell, a temperature adjusting device, a test device and a filter screen. The shell is provided with a temperature adjusting cavity and a detection cavity. The temperature adjusting device is arranged in the temperature adjusting cavity. The test device is connected with the detection cavity. The temperature adjusting cavity and the detection cavity are arranged in sequence along the conveying direction of the metal processing fluid. The filter screen is connected with the temperature adjusting device.

[0008] The shell serves as the main installation base. In the production and processing process of the metal processing fluid, the produced metal processing fluid is introduced into the temperature adjusting cavity, and is first automatically temperature-adjusted to prevent the temperature fluctuation from affecting the detection precision of the lubrication performance. After the automatic temperature adjustment, the metal processing fluid is sent into the detection cavity, and the lubrication performance of the metal processing fluid is automatically detected by the test device. The filter screen is fixed by the temperature adjusting device, so that the metal processing fluid is automatically filtered, and the impurities are prevented from entering the detection cavity to affect the detection precision of the lubrication performance.

[0009] Further, the temperature adjusting device comprises an induction assembly and an adjusting assembly, the temperature adjusting cavity is provided with an induction cavity on one side, the induction assembly is arranged in the induction cavity, the induction assembly comprises a thermal expansion air bag, heat exchange plates, a pressure bearing plate and an induction coil, the heat exchange plates are provided in plurality, the upper ends of the heat exchange plates are inserted into the temperature adjusting cavity, the lower ends of the heat exchange plates are inserted into the thermal expansion air bag, the thermal expansion air bag is arranged in the induction cavity, the upper end of the thermal expansion air bag is fixedly connected with the upper wall of the induction cavity, the lower end of the thermal expansion air bag is fixedly connected with the pressure bearing plate, the lower end of the pressure bearing plate is provided with a magnet core, the induction coil is arranged at the bottom end of the induction cavity, the lower end of the magnet core is inserted into the induction coil, the magnet core and the induction coil form a temperature measuring circuit, the adjusting assembly is electrically connected with the temperature measuring circuit, and the adjusting assembly is used for adjusting the instantaneous heat exchange amount of the metal working fluid.

[0010] During the prior production process of the metal working fluid, temperature fluctuation occurs, and the temperature of the metal working fluid affects the lubricity thereof, the induction assembly is arranged to automatically detect the temperature of the metal working fluid, after the detection is completed, the adjusting assembly is used for automatically adjusting the temperature, so that the temperature of the metal working fluid entering the detection cavity is kept consistent, and the detection accuracy is ensured. When the metal working fluid is pumped into the temperature adjusting cavity, heat exchange is performed through the heat exchange plates and the compressed gas in the thermal expansion air bag, when the temperature of the metal working fluid is too high, the gas in the thermal expansion air bag expands and deforms, pushes the pressure bearing plate to move downward, makes the magnet core move in the inner ring of the induction coil, performs cutting magnetic induction line movement, and generates an induction current, the size of the induction current on the temperature measuring circuit is positively correlated with the size of the temperature of the metal working fluid, the more the over-temperature of the metal working fluid, the greater the current on the temperature measuring circuit, and according to the size of the current, the instantaneous heat exchange amount of the subsequent metal working fluid is adjusted through the adjusting assembly.

[0011] Further, the adjusting assembly comprises a lifting cylinder, a pressure adjusting seat, a direction adjusting motor and a flow guide plate, the temperature adjusting cavity has a "T" shape structure, the lifting cylinder is arranged at the upper end of the temperature adjusting cavity, the output end of the lifting cylinder is fixedly connected with the pressure adjusting seat, the pressure adjusting seat is slidably connected with the upper end of the temperature adjusting cavity, the pressure adjusting seat is sequentially provided with a compression surface, a horizontal flow surface and a diffusion surface along the flow direction of the metal working fluid, the compression surface and the diffusion surface are arranged to be inclined, the compression surface is located at a low end near one end of the horizontal flow surface, the diffusion surface is located at a low end near one end of the horizontal flow surface, the shell is provided with an adjusting groove, the direction adjusting motor is arranged in the adjusting groove, the output end of the direction adjusting motor is fixedly connected with the flow guide plate, the end of the flow guide plate faces the detection cavity, and the diffusion surface is provided with a plurality of refrigeration fins which extend outward.

[0012] The temperature adjusting cavity is arranged in a T shape, and wraps a horizontal section and a vertical section; the vertical section is located at the upper end, and the horizontal section is located at the lower end; the lifting cylinder is located in the vertical section of the temperature adjusting cavity, and is used to output displacement to drive the pressure adjusting seat to move vertically; the lower end of the pressure adjusting seat extends into the horizontal section of the temperature adjusting cavity; when the pressure adjusting seat moves downward, the flow channel formed between the compression surface and the horizontal section decreases, so that the flow rate increases; when the metal working fluid enters the flow channel between the horizontal section and the flat flow surface, the flow rate is maximum; when the metal working fluid enters the flow channel between the horizontal section, the upper surface of the flow guide plate and the diffusion surface, the instantaneous flow rate decreases, the metal working fluid enters the diffusion surface and is dispersed in all directions, the metal working fluid contacts the refrigerating fins on the diffusion surface, the metal working fluid is cooled by the refrigerating fins, so that the temperature of the metal working fluid reaches a standard value, and the detection precision is improved.

[0013] Further, the lifting cylinder and the steering motor are electrically connected with the temperature measuring circuit.

[0014] According to the current value on the temperature measuring circuit, the output current on the lifting cylinder and the steering motor is automatically adjusted; when the current value on the temperature measuring circuit is larger, the distance that the pressure adjusting seat moves downward under the control of the lifting cylinder is larger, that is, the flow rate of the metal working fluid flowing out of the flat flow surface is faster, so that the negative pressure area of the metal working fluid entering the diffusion surface is larger; under the action of the pressure, part of the metal working fluid moves towards the diffusion surface and contacts more refrigerating fins, so that the instantaneous heat exchange amount is larger. At the same time, the flow guide plate is deflected upward by the steering motor, so that the contact area of the metal working fluid and the refrigerating fins is increased, and the heat exchange efficiency is improved.

[0015] Further, the filter screen is arranged obliquely along the compression surface, the lower side of the temperature adjusting cavity is provided with a slag falling groove, and the end of the filter screen faces the slag falling groove.

[0016] By arranging the filter screen and obliquely arranging the lower end of the compression surface, when the metal working fluid enters the flow channel between the compression surface and the horizontal section of the temperature adjusting cavity, the instantaneous flow rate increases with the gradual decrease of the flow area; at the same time, by the oblique arrangement, the metal working fluid washes the surface of the filter screen, so that impurities are washed into the slag falling groove, and the impurity accumulation efficiency is reduced.

[0017] Further, the thickness of the filter screen is gradually changed, and the thickness of the filter screen gradually decreases along the direction in which the metal working fluid is sent.

[0018] By gradually changing the thickness, the upper end is fixed on the compression surface, and the lower end is a movable end; when the water flow impacting on the filter screen drives the filter screen to vibrate, the impurity accumulation efficiency is reduced due to the different vibration frequencies.

[0019] Further, the test device comprises a driving motor, a fixed ball, a rotating ball and a detection cavity; the driving motor and the detection cavity are fixedly connected; the output end of the driving motor and the rotating ball are in transmission connection; the fixed ball and the detection cavity are fixedly connected; and the outer circular surface of the rotating ball is in contact with the fixed ball.

[0020] The driving motor is fixed on the wall of the detection cavity and used to output torque to drive the fixed ball and the fixed ball can be set in several numbers and installed in the detection cavity, the outer surface of the fixed ball and the fixed ball is in friction contact state, during detection, the driving motor outputs rated power, the filtered isothermal metalworking fluid enters the contact part between the fixed ball and the fixed ball, and lubricates the friction pair, when the lubricity is qualified, the fixed ball speed is unchanged under the rated power maintained by the driving motor, thereby the lubricity of the metalworking fluid is detected in real time.

[0021] As optimization, the test device further comprises a test assembly sleeved on the output shaft of the driving motor, the test assembly comprises a centrifugal disc, a tension spring, a test coil and an eccentric rod, the centrifugal disc is tightly connected with the output shaft of the driving motor, the centrifugal disc is provided with a test groove, the eccentric rod is rotationally connected with the test groove, the eccentric rod is provided with the tension spring on one side, the end of the tension spring is tightly connected with the wall of the test groove, the test coil is arranged in the test groove, the eccentric rod is in inverted "L" shape, the end of the eccentric rod away from the rotation center is inserted into the test coil, and the eccentric rod is made of magnet material. During detection, the centrifugal disc is sleeved on the output shaft of the driving motor, the output shaft of the driving motor is used to drive the fixed ball to rotate, the rotation speed of the centrifugal disc and the fixed ball is kept the same, during rotation, the eccentric rod in the test groove eccentrically arranged on the centrifugal disc rotates against the elastic force of the tension spring under the action of centrifugal force, and the end away from the rotation center is inserted into the test coil, thereby when the rotation speed of the fixed ball is constant, the depth of the eccentric rod inserted into the test coil moves, and the eccentric rod does not rotate any more, when the rotation speed is reduced, the eccentric rod reversely rotates against the initial rotation direction under the action of the tension spring, and fluctuation current is generated, thereby the production quality of the metalworking fluid is automatically detected.

[0022] As optimization, the test device further comprises a three-way valve, the three-way valve is communicated with the outlet of the detection cavity, the eccentric rod and the test coil constitute a detection circuit, and the three-way valve is electrically connected with the test coil. By arranging the three-way valve, an inlet and two outlets are arranged, the three-way valve automatically switches the outlet according to the fluctuation current on the detection circuit, thereby the qualified products and unqualified products are automatically distinguished and guided.

[0023] Compared with the prior art, the beneficial effects of the present application are: when the metal processing liquid is pumped into the temperature adjusting cavity, heat exchange is carried out through the heat exchange plate and the compressed gas in the thermal expansion gas bag, when the temperature of the metal processing liquid is too high, the gas in the thermal expansion gas bag expands and deforms through heat exchange, pushes the pressure bearing plate to move downwards, makes the magnet core move in the inner circle of the induction coil, does cutting magnetic induction line movement, and generates an induced current, the induced current on the temperature measuring circuit is positively correlated with the size of the metal processing liquid temperature, the more the metal processing liquid over-temperature, the greater the current on the temperature measuring circuit, according to the current size, the instantaneous heat exchange amount of the subsequent metal processing liquid is adjusted through the adjusting assembly; when the pressure adjusting seat moves downwards, the flow channel formed between the compression surface and the horizontal section is reduced, so that the flow rate is increased; when entering the flow channel between the flat flow surface and the horizontal section, the flow rate is maximum; when entering the flow channel between the diffusion surface, the upper surface of the flow guide plate and the horizontal section, due to the decrease of the instantaneous flow rate, the metal processing liquid enters the diffusion surface and disperses to the surrounding, the metal processing liquid and the refrigeration fin on the diffusion surface are in contact, the metal processing liquid is cooled through the refrigeration fin, so that the temperature of the metal processing liquid reaches the standard value, and the detection precision is improved; the greater the current value of the temperature measuring circuit, the greater the distance of the pressure adjusting seat controlled by the lifting cylinder to move downwards, that is, the faster the flow rate of the metal processing liquid flowing out of the flat flow surface, so that the negative pressure area of the metal processing liquid entering the diffusion surface is larger, under the action of pressure, part of the metal processing liquid moves towards the diffusion surface and contacts more refrigeration fins, and the instantaneous heat exchange amount is larger. At the same time, the flow guide plate is deflected upwards by the steering motor, the contact area of the metal processing liquid and the refrigeration fin is increased, and the heat exchange efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0025] Figure 2 It is a transverse sectional view of the shell of the present application;

[0026] Figure 3 It is a longitudinal sectional view of the shell of the present application;

[0027] Figure 4 It is Figure 3 It is a partial A enlarged view of the view;

[0028] Figure 5 It is Figure 3 It is a partial B enlarged view of the view;

[0029] Figure 6 It is a lubricity detection schematic diagram of the present application;

[0030] Figure 7 It is a test assembly structure schematic diagram of the present application.

[0031] In the figure: 1, the shell; 11, temperature regulating cavity; 12, induction cavity; 13, slag chute; 14, detection cavity; 15, adjusting groove; 2, temperature regulating device; 21, induction assembly; 211, thermal expansion air bag; 212, heat exchange plate; 213, pressure bearing plate; 214, magnet core; 215, induction coil; 22, adjusting assembly; 221, lifting cylinder; 222, pressure regulating seat; 2221, compression surface; 2222, flat flow surface; 2223, diffusion surface; 223, refrigeration sheet; 224, direction adjusting motor; 225, guide vane; 3, test device; 31, driving motor; 32, test assembly; 321, centrifugal disc; 322, tension spring; 323, test coil; 324, eccentric rod; 33, fixed ball; 34, fixed ball; 35, three-way valve; 4, filter screen. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0033] Embodiment: As shown in the figure, the present application provides a kind of detection device technical scheme with impurity filtering function for metal working fluid production. Figures 1-7

[0034] The detection device includes shell 1, temperature regulating device 2, test device 3 and filter screen 4, shell 1 is provided with temperature regulating cavity 11 and detection cavity 14, temperature regulating device 2 is placed in temperature regulating cavity 11, test device 3 and detection cavity 14 are connected, temperature regulating cavity 11 and detection cavity 14 are arranged in sequence along the conveying direction of metal working fluid, filter screen 4 is connected with temperature regulating device 2.

[0035] Shell 1 is the main installation base, in the metal working fluid production process, the produced metal working fluid is introduced into temperature regulating cavity 11, first automatic temperature regulation is carried out, to prevent temperature fluctuation from affecting the detection accuracy of lubricity, after automatic temperature regulation, it is sent into detection cavity 14, the lubricity of metal working fluid is automatically detected by test device 3, filter screen 4 is fixed by temperature regulating device 2, so as to automatically filter metal working fluid, prevent impurities from entering detection cavity 14, affect the detection accuracy of lubricity.

[0036] ​Further, the temperature adjusting device 2 comprises an induction assembly 21 and an adjusting assembly 22, the temperature adjusting cavity 11 is provided with an induction cavity 12 on one side, the induction assembly 21 is arranged in the induction cavity 12, the induction assembly 21 comprises a thermal expansion air bag 211, heat exchange plates 212, a pressure bearing plate 213 and an induction coil 215, the heat exchange plates 212 are provided in plurality, the upper ends of the heat exchange plates 212 are inserted into the temperature adjusting cavity 11, the lower ends of the heat exchange plates 212 are inserted into the thermal expansion air bag 211, the thermal expansion air bag 211 is arranged in the induction cavity 12, the upper end of the thermal expansion air bag 211 is fixedly connected with the upper wall of the induction cavity 12, the lower end of the thermal expansion air bag 211 is fixedly connected with the pressure bearing plate 213, the lower end of the pressure bearing plate 213 is provided with a magnet core 214, the induction coil 215 is arranged at the bottom end of the induction cavity 12, the lower end of the magnet core 214 is inserted into the induction coil 215, the magnet core 214 and the induction coil 215 form a temperature measuring circuit, the adjusting assembly 22 is electrically connected with the temperature measuring circuit, and the adjusting assembly 22 is used for adjusting the instantaneous heat exchange amount of the metal working fluid.

[0037] During the prior production process of the metal working fluid, temperature fluctuation occurs, and the temperature of the metal working fluid will affect the lubricity thereof. Through the induction assembly 21, the temperature of the metal working fluid is automatically detected, after the detection is completed, the temperature is automatically adjusted through the adjusting assembly 22, so that the temperature of the metal working fluid entering the detection cavity 14 is kept consistent, which is beneficial to ensure the detection accuracy. When the metal working fluid is pumped into the temperature adjusting cavity 11, heat exchange is performed through the heat exchange plates 212 and the compressed gas in the thermal expansion air bag 211. When the temperature of the metal working fluid is too high, the gas in the thermal expansion air bag 211 expands and deforms, pushes the pressure bearing plate 213 to move downward, so that the magnet core 214 moves in the inner ring of the induction coil 215, performs cutting magnetic induction line movement, and generates induction current. The size of the induction current on the temperature measuring circuit is positively correlated with the size of the temperature of the metal working fluid. The more the temperature of the metal working fluid is over-temperature, the greater the current on the temperature measuring circuit is. According to the size of the current, the instantaneous heat exchange amount of the subsequent metal working fluid is adjusted through the adjusting assembly 22.

[0038] Further, the adjusting assembly 22 comprises a lifting cylinder 221, a pressure regulating seat 222, a direction adjusting motor 224 and a flow guide plate 225. The temperature adjusting cavity 11 is in a T-shaped structure. The lifting cylinder 221 is arranged at the upper end of the temperature adjusting cavity 11. The output end of the lifting cylinder 221 is fixedly connected with the pressure regulating seat 222. The pressure regulating seat 222 is slidably connected with the upper end of the temperature adjusting cavity 11. The pressure regulating seat 222 is sequentially provided with a compression surface 2221, a horizontal flow surface 2222 and a diffusion surface 2223 along the flow direction of the metalworking fluid. The compression surface 2221 and the diffusion surface 2223 are arranged in an inclined manner. The compression surface 2221 is located at a low position near one end of the horizontal flow surface 2222. The diffusion surface 2223 is located at a low position near one end of the horizontal flow surface 2222. The shell 1 is provided with an adjusting groove 15. The direction adjusting motor 224 is arranged in the adjusting groove 15. The output end of the direction adjusting motor 224 is fixedly connected with the flow guide plate 225. The end of the flow guide plate 225 is directed towards the detection cavity 14. The diffusion surface 2223 is outwardly extended and provided with a plurality of refrigerating fins 223.

[0039] The temperature adjusting cavity 11 is arranged in a T-shaped structure and comprises a horizontal section and a vertical section. The vertical section is located at the upper end and the horizontal section is located at the lower end. The lifting cylinder 221 is arranged in the vertical section of the temperature adjusting cavity 11 and is used to output displacement and drive the pressure regulating seat 222 to move vertically. The lower end of the pressure regulating seat 222 extends into the horizontal section of the temperature adjusting cavity 11. When the pressure regulating seat 222 moves downward, the flow channel formed between the compression surface 2221 and the horizontal section is reduced, thereby increasing the flow rate. When the metalworking fluid enters the flow channel between the horizontal flow surface 2222 and the horizontal section, the flow rate is the largest. When the metalworking fluid enters the flow channel between the diffusion surface 2223, the upper surface of the flow guide plate 225 and the horizontal section, the instantaneous flow rate is reduced. The metalworking fluid is dispersed in the diffusion surface 2223. The metalworking fluid contacts the refrigerating fins 223 on the diffusion surface 2223. The refrigerating fins 223 are used to cool the metalworking fluid, so that the temperature of the metalworking fluid reaches the standard value and the detection accuracy is improved.

[0040] Further, the lifting cylinder 221 and the direction adjusting motor 224 are electrically connected with the temperature measuring circuit.

[0041] According to the current value on the temperature measuring circuit, the output current of the lifting cylinder 221 and the direction adjusting motor 224 is automatically adjusted. When the current value of the temperature measuring circuit is larger, the distance that the pressure regulating seat 222 moves downward under the control of the lifting cylinder 221 is larger, that is, the flow rate of the metalworking fluid flowing out of the horizontal flow surface 2222 is faster. Therefore, the negative pressure area of the metalworking fluid entering the diffusion surface 2223 is larger. Under the action of the pressure, part of the metalworking fluid moves towards the diffusion surface 2223 and contacts more refrigerating fins 223, so that the instantaneous heat exchange amount is larger. At the same time, the flow guide plate 225 is deflected upward by the direction adjusting motor 224, so that the contact area of the metalworking fluid and the refrigerating fins 223 is increased and the heat exchange efficiency is improved.

[0042] Further, the filter screen 4 is arranged obliquely along the compression surface 2221, and the lower side of the temperature adjusting cavity 11 is provided with a slag chute 13, and the end of the filter screen 4 is directed towards the slag chute 13.

[0043] By arranging the filter screen 4 and obliquely arranging the lower end along the compression surface 2221, when the metalworking fluid enters the flow channel between the compression surface 2221 and the horizontal section of the temperature adjusting cavity 11, the instantaneous flow rate increases as the flow area gradually decreases, and at the same time, the oblique arrangement causes the metalworking fluid to wash the surface of the filter screen 4, and the impurities are washed into the slag chute 13, preventing the impurities from accumulating and affecting the impurity removal efficiency.

[0044] Further, the thickness of the filter screen 4 is gradually changed, and the thickness of the filter screen 4 gradually decreases along the direction of the metalworking fluid.

[0045] By gradually changing the thickness, the upper end is fixed on the compression surface 2221, and the lower end is a movable end. When the water flow impacting on the filter screen 4 drives it to vibrate, the impurity accumulation efficiency is reduced due to the different vibration frequencies.

[0046] Further, the test device 3 includes a driving motor 31, a fixed ball 33, and a fixed ball 34. The driving motor 31 and the detection cavity 14 are tightly connected, the output end of the driving motor 31 and the fixed ball 33 are in transmission connection, the fixed ball 34 and the detection cavity 14 are tightly connected, and the outer circular surface of the fixed ball 33 and the fixed ball 34 are in contact.

[0047] The driving motor 31 is fixed on the wall surface of the detection cavity 14 and is used to output torque to drive the fixed ball 33 to rotate. The fixed ball 34 can be provided in several and installed in the detection cavity 14. The outer circular surface of the fixed ball 33 and the fixed ball 34 are in frictional contact state. During detection, the driving motor 31 outputs rated power, the filtered isothermal metalworking fluid enters the contact part between the fixed ball 33 and the fixed ball 34, and lubricates the friction pair. When the lubricity is qualified, the rotational speed of the fixed ball 33 remains unchanged under the rated power maintained by the driving motor 31, so as to realize real-time detection of the lubricity of the metalworking fluid.

[0048] As optimization, the test device 3 further comprises a test assembly 32 sleeved on the output shaft of the driving motor 31, the test assembly 32 comprising a centrifugal disc 321, a tension spring 322, a test coil 323 and an eccentric rod 324, the centrifugal disc 321 being fastened to the output shaft of the driving motor 31, the centrifugal disc 321 being provided with a test groove, the eccentric rod 324 being rotatably connected to the test groove, the eccentric rod 324 being provided with the tension spring 322 on one side, the tension spring 322 being fastened to the wall surface of the test groove at the end, the test coil 323 being arranged in the test groove, the eccentric rod 324 being in the shape of inverted "L", the eccentric rod 324 being inserted into the test coil 323 at the end away from the rotation center, and the eccentric rod 324 being made of magnet. When detecting, the centrifugal disc 321 is sleeved on the output shaft of the driving motor 31, the output shaft of the driving motor 31 being used to drive the rotation of the fixed and rotating ball 33, the rotation speed of the centrifugal disc 321 being kept the same as that of the fixed and rotating ball 33, when rotating, the test groove eccentrically arranged on the centrifugal disc 321, the eccentric rod 324 rotating against the elastic force of the tension spring 322 under the action of centrifugal force, and the end away from the rotation center being inserted into the test coil 323, so that when the rotation speed of the fixed and rotating ball 33 is constant, the depth of the eccentric rod 324 inserted into the test coil 323 moves, and the eccentric rod 324 no longer rotates, when the rotation speed decreases, the eccentric rod 324 reversely rotates against the initial rotation direction under the action of the tension spring, and fluctuating current is generated, so as to automatically detect the production quality of the metal working fluid.

[0049] As optimization, the test device 3 further comprises a three-way valve 35, the three-way valve 35 being communicated with the outlet of the detection cavity 14, the eccentric rod 324 and the test coil 323 constituting a detection circuit, and the three-way valve 35 being electrically connected with the test coil 323. By arranging the three-way valve 35, an inlet and two outlets are adopted, the three-way valve 35 automatically switching the outlet according to the fluctuating current on the detection circuit, so as to automatically distinguish and guide the qualified products and unqualified products.

[0050] The working principle of the present application is as follows: when the metal processing liquid is pumped into the temperature adjusting cavity 11, the heat exchange is carried out through the heat exchange plate 212 and the compressed gas in the thermal expansion air bag 211, when the temperature of the metal processing liquid is too high, the gas in the thermal expansion air bag 211 expands and deforms through the heat exchange, pushes the pressure bearing plate 213 to move downward, makes the magnet core 214 move in the inner circle of the induction coil 215, does the cutting magnetic induction line movement, and generates the induction current, the size of the induction current on the temperature measuring circuit is positively correlated with the size of the temperature of the metal processing liquid, the more the metal processing liquid over-temperature is, the greater the current on the temperature measuring circuit is, according to the size of the current, the instantaneous heat exchange amount of the subsequent metal processing liquid is adjusted through the adjusting assembly 22; when the pressure adjusting seat 222 moves downward, the flow channel formed between the compression surface 2221 and the horizontal section is reduced, so that the flow rate is increased; when the flow channel between the flat surface 2222 and the horizontal section is entered, the flow rate is maximum; when the flow channel between the diffusion surface 2223, the upper surface of the flow guide plate 225 and the horizontal section is entered, due to the decrease of the instantaneous flow rate, the metal processing liquid enters the diffusion surface 2223 and disperses to the four directions, the metal processing liquid contacts the refrigerating fin 223 on the diffusion surface 2223, the metal processing liquid is cooled through the refrigerating fin 223, so that the temperature of the metal processing liquid reaches the standard value, and the detection precision is improved; the greater the current value of the temperature measuring circuit is, the greater the distance that the lifting cylinder 221 controls the pressure adjusting seat 222 to move downward is, that is, the flow rate of the metal processing liquid flowing out of the flat surface 2222 is faster, so that the negative pressure area of the metal processing liquid entering the diffusion surface 2223 is greater, under the action of the pressure, part of the metal processing liquid moves towards the diffusion surface 2223, contacts more refrigerating fins 223, and the instantaneous heat exchange amount is greater. At the same time, the flow guide plate 225 is deflected upward by the steering motor 224, the contact area of the metal processing liquid and the refrigerating fin 223 is increased, and the heat exchange efficiency is improved.

[0051] It is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. A detection device with impurity filtering function for metalworking fluid production, characterized in that: The detection device includes a shell (1), a temperature regulating device (2), a test device (3) and a filter screen (4), the shell (1) is provided with a temperature regulating cavity (11) and a detection cavity (14), the temperature regulating device (2) is arranged in the temperature regulating cavity (11), the test device (3) is connected with the detection cavity (14), the temperature regulating cavity (11) and the detection cavity (14) are arranged along the conveying direction of the metalworking fluid, and the filter screen (4) is connected with the temperature regulating device (2). The temperature regulating device (2) includes an induction assembly (21) and an adjusting assembly (22), one side of the temperature regulating cavity (11) is provided with an induction cavity (12), the induction assembly (21) is arranged in the induction cavity (12), the induction assembly (21) includes a thermal expansion air bag (211), a heat exchange plate (212), a pressure bearing plate (213) and an induction coil (215), the heat exchange plate (212) is provided with a plurality of heat exchange plates (212), the upper ends of the heat exchange plates (212) are inserted into the temperature regulating cavity (11), the lower ends of the heat exchange plates (212) are inserted into the thermal expansion air bag (211), and the thermal expansion air bag (211) is arranged in the induction cavity (12). The lower end of the thermal expansion air bag (211) is tightly connected with the pressure bearing plate (213), the lower end of the pressure bearing plate (213) is provided with a magnet core (214), the induction coil (215) is arranged at the bottom end of the induction cavity (12), the lower end of the magnet core (214) is inserted into the induction coil (215), and the magnet core (214) and the induction coil (215) form a temperature measuring circuit. The adjusting assembly (22) includes a pressure regulating seat (222), the pressure regulating seat (222) is slidably connected with the upper end of the temperature regulating cavity (11), the pressure regulating seat (222) is sequentially provided with a compression surface (2221), a horizontal flow surface (2222) and a diffusion surface (2223) along the flow direction of the metalworking fluid, the compression surface (2221) and the diffusion surface (2223) are arranged obliquely, the compression surface (2221) is located at a low position end near one end of the horizontal flow surface (2222), and the diffusion surface (2223) is located at a low position end near one end of the horizontal flow surface (2222). The diffusion surface (2223) is provided with a plurality of refrigeration pieces (223) extending outward.

2. The detection device with impurity filtering function for metal working fluid production according to claim 1, characterized in that: The upper end of the thermal expansion air bag (211) is tightly connected with the upper wall of the induction cavity (12), the adjusting assembly (22) is electrically connected with the temperature measuring circuit, and the adjusting assembly (22) is used for adjusting the instantaneous heat exchange amount of the metalworking fluid.

3. The detection device with impurity filtering function for metal working fluid production according to claim 2, characterized in that: The adjusting assembly (22) includes a lifting cylinder (221), a direction adjusting motor (224) and a flow guide plate (225), the temperature regulating cavity (11) has a "T" shape structure, the lifting cylinder (221) is arranged at the upper end of the temperature regulating cavity (11), the output end of the lifting cylinder (221) is tightly connected with the pressure regulating seat (222), the shell (1) is provided with an adjusting groove (15), the direction adjusting motor (224) is arranged in the adjusting groove (15), the output end of the direction adjusting motor (224) is tightly connected with the flow guide plate (225), and the end of the flow guide plate (225) faces the detection cavity (14).

4. The detection device with impurity filtering function for metal working fluid production according to claim 3, characterized in that: The lifting cylinder (221) and the direction adjusting motor (224) are respectively electrically connected with the temperature measuring circuit.

5. The detection device with impurity filtering function for metal working fluid production according to claim 4, characterized in that: The filter screen (4) is arranged obliquely along the compression surface (2221), the temperature-adjusting cavity (11) is provided with a slag falling groove (13) at the lower side, and the filter screen (4) is arranged with the end towards the slag falling groove (13).

6. The detection device with impurity filtering function for metal working fluid production according to claim 5, characterized in that: The filter screen (4) is arranged with gradually changed thickness, and the thickness of the filter screen (4) gradually decreases along the direction of the metal processing liquid.

7. The detection device with impurity filtering function for metal working fluid production according to claim 6, characterized in that: The test device (3) comprises a driving motor (31), a fixed ball (34) and a fixed ball (34), the driving motor (31) and the detection cavity (14) are tightly connected, the output end of the driving motor (31) and the fixed ball (33) are drivingly connected, the fixed ball (34) and the detection cavity (14) are tightly connected, and the outer circular surface of the fixed ball (33) and the fixed ball (34) are in contact.

8. The detection device with impurity filtering function for metal working fluid production according to claim 7, characterized in that: The test device (3) further comprises a test assembly (32), the test assembly (32) is sleeved on the output shaft of the driving motor (31), the test assembly (32) comprises a centrifugal disc (321), a tension spring (322), a test coil (323) and an eccentric rod (324), the centrifugal disc (321) and the output shaft of the driving motor (31) are tightly connected, the centrifugal disc (321) is provided with a test groove, the eccentric rod (324) and the test groove are drivingly connected, one side of the eccentric rod (324) is provided with the tension spring (322), the end of the tension spring (322) and the wall surface of the test groove are tightly connected, the test coil (323) is arranged in the test groove, the eccentric rod (324) is in the shape of inverted "L", one end of the eccentric rod (324) away from the rotation center is inserted into the test coil (323), and the eccentric rod (324) is made of magnet material.

9. The detection device with impurity filtering function for metal working fluid production according to claim 8, characterized in that: The test device (3) further comprises a three-way valve (35), the three-way valve (35) and the detection cavity (14) are communicated, the eccentric rod (324) and the test coil (323) constitute a detection circuit, and the three-way valve (35) and the test coil (323) are electrically connected.

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