Detection device with impurity filtering function for metal working fluid production

Abstract

The invention discloses a detection device with an impurity filtering function for metal working fluid production, and relates to the technical field of metal working fluid detection.The detection device comprises a shell, a temperature adjusting device, a test device and a filter screen, a temperature adjusting cavity and a detection cavity are formed in the shell, the temperature adjusting device is arranged in the temperature adjusting cavity, the test device is connected with the detection cavity, and the filter screen is arranged in the detection cavity. The temperature adjusting cavity and the detection cavity are sequentially arranged in the conveying direction of the metal working fluid, and the filter screen is connected with the temperature adjusting device. The shell serves as a main installation foundation, in the production and machining process of the metal working fluid, the produced metal working fluid is guided into the temperature adjusting cavity, automatic temperature adjusting is conducted firstly, the situation that the detection precision of the lubricity is influenced by temperature fluctuation is prevented, after automatic temperature adjusting, the metal working fluid is fed into the detection cavity, the lubricity of the metal working fluid is automatically detected through the testing device, and the detection precision of the lubricity is improved. And the filter screen is fixed through the temperature adjusting device, so that impurities in the metal working fluid are automatically filtered, and the impurities are prevented from entering the detection cavity to influence the detection precision of the lubricity.

Description

Technical Field

[0001] The invention relates to the technical field of metalworking fluids, in particular to a detection device with a filter function for metalworking fluid production. Background Art

[0002] In recent years, with the continuous development of automation, a large amount of processing waste heat will be generated during the processing. In order to ensure equipment safety and processing quality, metalworking fluid is used during the processing to dissipate heat and lubricate.

[0003] There are many types of metalworking fluids. For example, in the production process, graphene materials and 5% to 10% of water are added, and the metalworking fluid obtained through a certain treatment process has strong anti-rust ability and lubrication performance. However, during the production process of metalworking fluids, there will be some impurities, which will affect the subsequent use process. The current detection method mostly uses random inspection, which cannot perform continuous detection of metalworking fluids, affecting production quality.

[0004] In addition, the treatment process of metalworking fluid will also cause the temperature to fluctuate within a large range, thus affecting the accuracy of subsequent detection. Summary of the invention

[0005] The object of the present invention is to provide a detection device with a filter function for metalworking fluid production to solve the problems raised in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions: The detection device includes a shell, a temperature control device, a test device and a filter. The shell is provided with a temperature control cavity and a detection cavity. The temperature control device is placed in the temperature control cavity. The test device is connected to the detection cavity. The temperature control cavity and the detection cavity are arranged in sequence along the conveying direction of the metalworking fluid. The filter is connected to the temperature control device.

[0007] The shell serves as the main installation base. During the production and processing of metalworking fluid, the finished metalworking fluid is introduced into the temperature control chamber, and the temperature is automatically adjusted first to prevent temperature fluctuations from affecting the detection accuracy of lubricity. After automatic temperature adjustment, the fluid is sent to the detection chamber, and the lubricity of the metalworking fluid is automatically detected by the test device. The filter is fixed by the temperature control device, thereby automatically filtering the metalworking fluid to prevent impurities from entering the detection chamber and affecting the detection accuracy of lubricity.

[0008] Furthermore, the temperature control device includes a sensing component and an adjustment component. A sensing cavity is provided on one side of the temperature control cavity. The sensing component is placed in the sensing cavity. The sensing component includes a thermal expansion airbag, a heat exchange plate, a pressure plate and an induction coil. Several heat exchange plates are provided. The upper ends of several heat exchange plates are inserted into the temperature control cavity, and the lower ends of the heat exchange plates are inserted into the thermal expansion airbag. The thermal expansion airbag is placed in the sensing cavity. The upper end of the thermal expansion airbag is tightly connected to the upper wall of the sensing cavity, and the lower end of the thermal expansion airbag is tightly connected to the pressure plate. A magnetic core is provided at the lower end of the pressure plate. The induction coil is placed at the bottom of the induction cavity, and the lower end of the magnetic core is inserted into the induction coil. The magnetic core and the induction coil constitute a temperature measuring circuit. The adjustment component is electrically connected to the temperature measuring circuit. The adjustment component is used to adjust the instantaneous heat exchange amount of the metalworking fluid.

[0009] During the previous production process, the metalworking fluid will produce temperature fluctuations. The temperature of the metalworking fluid will affect its own lubricity. By setting up the induction component, the temperature of the metalworking fluid is automatically detected. After the detection is completed, the temperature is automatically adjusted by the adjustment component to ensure that the temperature of the metalworking fluid entering the detection chamber remains consistent, which is conducive to ensuring the accuracy of the detection. After the metalworking fluid is pumped into the temperature adjustment chamber, the heat is exchanged through the heat exchange plate and the compressed gas in the thermal expansion airbag. When the temperature of the metalworking fluid is too high, the gas in the thermal expansion airbag expands and deforms through heat exchange, pushing the pressure plate downward, causing the magnetic core to move in the inner circle of the induction coil, cutting the magnetic flux lines, and generating an induced current. The magnitude of the induced current on the temperature measurement circuit is positively correlated with the temperature of the metalworking fluid. The more the metalworking fluid overheats, the greater the current on the temperature measurement circuit. According to the magnitude of the current, the subsequent instantaneous heat exchange of the metalworking fluid is adjusted by the adjustment component.

[0010] Furthermore, the adjustment component includes a lifting cylinder, a pressure regulating seat, an adjustment motor and a guide plate. The temperature adjustment chamber is a "T"-shaped structure. The lifting cylinder is placed at the upper end of the temperature adjustment chamber. The output end of the lifting cylinder is tightly connected to the pressure regulating seat. The pressure regulating seat is slidingly connected to the upper end of the temperature adjustment chamber. The pressure regulating seat is provided with a compression surface, a flow surface and a diffusion surface in sequence along the metalworking fluid diversion direction. The compression surface and the diffusion surface are arranged inclined. The compression surface is close to one end of the flow surface and is located at a low end. The diffusion surface is close to one end of the flow surface and is located at a low end. An adjustment groove is provided on the shell. The adjustment motor is placed in the adjustment groove. The output end of the adjustment motor is tightly connected to the guide plate. The end of the guide plate faces the detection chamber. The diffusion surface extends outward and is provided with a number of cooling plates.

[0011] The temperature regulating chamber is set in a T shape, wrapping the horizontal section and the 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 regulating chamber and is used to output displacement to drive the pressure regulating seat to move vertically. The lower end of the pressure regulating seat extends into the horizontal section of the temperature regulating chamber. When the pressure regulating seat moves downward, the flow channel formed between the compression surface and the horizontal section of the metalworking fluid is reduced, thereby increasing the flow rate; 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 guide plate and the horizontal section, due to the reduction in instantaneous flow rate, the metalworking fluid enters the diffusion surface and disperses to the surroundings. The metalworking fluid contacts the refrigeration plate on the diffusion surface, and the metalworking fluid is cooled by the refrigeration plate, so that the temperature of the metalworking fluid reaches the standard value, thereby improving the detection accuracy.

[0012] Furthermore, the lifting cylinder and the direction adjustment motor are electrically connected to the temperature measuring circuit respectively.

[0013] According to the current value on the temperature measurement circuit, the output current on the lifting cylinder and the direction adjustment motor is automatically adjusted. When the current value of the temperature measurement circuit is larger, the lifting cylinder controls the pressure regulating seat to move downward, that is, the metalworking fluid flowing out of the flat surface flows faster, making the negative pressure area where the metalworking fluid enters the diffusion surface larger. Under the action of pressure, part of the metalworking fluid moves toward the diffusion surface, and the more contact with the cooling plate, the greater the instantaneous heat exchange. At the same time, the direction adjustment motor drives the guide plate to deflect upward, increasing the contact area between the metalworking fluid and the cooling plate, and improving the heat exchange efficiency.

[0014] Furthermore, the filter screen is arranged obliquely along the compression surface, a slag dropping groove is provided at the lower side of the temperature regulating chamber, and the end of the filter screen faces the slag dropping groove.

[0015] By setting up a filter and arranging it obliquely along the lower end of the compression surface, when the metalworking fluid enters the flow channel between the compression surface and the horizontal section of the temperature adjustment chamber, the instantaneous flow velocity increases as the flow cross-sectional area gradually decreases. At the same time, through the inclined arrangement, the metalworking fluid flushes the surface of the filter and flushes impurities into the slag trough, preventing impurities from accumulating and affecting the filtration efficiency.

[0016] Furthermore, the thickness of the filter screen is gradually set, and the thickness of the filter screen gradually decreases along the direction of metalworking fluid delivery.

[0017] Through the thickness gradient setting, the upper end is fixed on the compression surface, and the lower end is the movable end. When the water flow impacting the filter screen drives it to vibrate, the impurity deposition efficiency is reduced due to the different vibration frequencies.

[0018] Furthermore, the test device includes a driving motor, a fixed ball and a fixed ball, the driving motor and the detection cavity are tightly connected, the output end of the driving motor and the fixed ball are transmission-connected, the fixed ball and the detection cavity are tightly connected, and the outer cylindrical surface of the fixed ball is in contact with the fixed ball.

[0019] The driving motor is fixed on the wall of the detection chamber to output torque and drive the fixed rotating ball to rotate. Several fixed balls can be set and installed in the detection chamber. The fixed rotating ball and the outer cylindrical surface of the fixed ball are in a friction contact state. When the detection is carried out, the driving motor outputs the rated power, and the filtered isothermal metalworking fluid enters the contact part between the fixed rotating ball and the fixed ball to lubricate the friction pair. When the lubricity is qualified, the speed of the fixed rotating ball remains unchanged under the rated power maintained by the driving motor, thereby performing real-time detection of the lubricity of the metalworking fluid.

[0020] As an optimization, the test device also includes a test assembly, which is sleeved on the output shaft of the drive motor. The test assembly includes a centrifugal disk, a tension spring, a test coil and an eccentric rod. The centrifugal disk is tightly connected to the output shaft of the drive motor. A test slot is provided on the centrifugal disk. The eccentric rod and the test slot are rotatably connected. A tension spring is provided on one side of the eccentric rod. The end of the tension spring is tightly connected to the wall of the test slot. The test coil is placed in the test slot. The eccentric rod is an inverted "L" shape. The end of the eccentric rod away from the rotation center is inserted into the test coil. The eccentric rod is made of magnet material. During the inspection, 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 rotating ball to rotate, and keep the centrifugal disc and the fixed rotating ball at the same speed. During the rotation, the eccentric rod in the eccentrically arranged test groove on the centrifugal disc overcomes the elastic force of the tension spring and rotates under the action of centrifugal force, and the end away from the rotation center is inserted into the test coil. Therefore, when the speed of the fixed rotating ball is constant, the eccentric rod is inserted into the depth of the test coil and moves, and no longer rotates. When the speed decreases, the eccentric rod rotates in the opposite direction to the initial rotation direction under the action of the tension spring, generating a fluctuating current, thereby automatically detecting the production quality of the metalworking fluid.

[0021] As an optimization, the test device also includes a three-way valve, which is connected to the outlet of the detection chamber, the eccentric rod and the test coil constitute a detection circuit, and the three-way valve and the test coil are electrically connected. By setting the three-way valve, a mode of one inlet and two outlets is adopted. The three-way valve automatically switches the outlet according to the fluctuating current on the detection circuit, thereby automatically distinguishing and diverting qualified products and unqualified products.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: after the metalworking fluid is pumped into the temperature regulating chamber, heat is exchanged through the heat exchange plate and the compressed gas in the thermal expansion airbag. When the temperature of the metalworking fluid is too high, the gas in the thermal expansion airbag expands and deforms through heat exchange, pushing the pressure plate to move downward, so that the magnetic core moves in the inner ring of the induction coil, cutting the magnetic flux lines and generating an induced current. The magnitude of the induced current on the temperature measuring circuit is positively correlated with the magnitude of the metalworking fluid temperature. The more the metalworking fluid overheats, the greater the current on the temperature measuring circuit. According to the magnitude of the current, the subsequent instantaneous heat exchange amount of the metalworking fluid is adjusted by the adjusting component. When the pressure regulating seat moves downward, the flow channel formed between the compression surface and the horizontal section formed by the metalworking fluid entering the pressure regulating seat is reduced, thereby increasing Increase the flow rate; when entering the flow channel between the flat surface and the horizontal section, the flow rate is the largest; when entering the flow channel between the diffusion surface, the upper surface of the guide plate and the horizontal section, due to the decrease in instantaneous flow rate, the metalworking fluid enters the diffusion surface and disperses around, the metalworking fluid contacts the cooling plate on the diffusion surface, and the metalworking fluid is cooled by the cooling plate, so that the temperature of the metalworking fluid reaches the standard value, improving the detection accuracy; when the current value of the temperature measurement circuit is larger, the lifting cylinder controls the pressure regulating seat to move downward, that is, the faster the flow rate of the metalworking fluid flowing out of the flat surface, the larger the negative pressure area where the metalworking fluid enters the diffusion surface, and under the action of pressure, part of the metalworking fluid moves toward the diffusion surface, and the more cooling plates it contacts, the greater the instantaneous heat exchange. At the same time, the deflector is driven to deflect upward by the steering motor, increasing the contact area between the metalworking fluid and the cooling plate, and improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a transverse cross-sectional view of a housing of the present invention; Figure 3 is a longitudinal sectional view of a housing of the present invention; Figure 4 for Figure 3 A magnified view of a part of the view; Figure 5 for Figure 3 A magnified view of a part B of the view; Figure 6 It is a schematic diagram of lubricity detection of the present invention; Figure 7 It is a schematic diagram of the test component structure of the present invention.

[0024] In the figure: 1. Shell; 11. Temperature adjustment chamber; 12. Sensing chamber; 13. Slag trough; 14. Detection chamber; 15. Adjustment trough; 2. Temperature adjustment device; 21. Sensing component; 211. Thermal expansion air bag; 212. Heat exchange plate; 213. Pressure plate; 214. Magnetic core; 215. Induction coil; 22. Adjustment component; 221. Lifting cylinder; 222. Pressure adjustment seat; 2221. Compression surface; 2222. Straight flow surface; 2223. Diffusion surface; 223. Refrigeration plate; 224. Direction adjustment motor; 225. Guide plate; 3. Test device; 31. Drive motor; 32. Test component; 321. Centrifugal disc; 322. Tension spring; 323. Test coil; 324. Eccentric rod; 33. Fixed ball; 34. Fixed ball; 35. Three-way valve; 4. Filter. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example: Figure 1-Figure 7 As shown, the present invention provides a technical solution for a detection device with a filtering function for metalworking fluid production.

[0027] The detection device includes a shell 1, a temperature control device 2, a test device 3 and a filter 4. The shell 1 is provided with a temperature control chamber 11 and a detection chamber 14. The temperature control device 2 is placed in the temperature control chamber 11. The test device 3 is connected to the detection chamber 14. The temperature control chamber 11 and the detection chamber 14 are arranged in sequence along the conveying direction of the metalworking fluid. The filter 4 is connected to the temperature control device 2.

[0028] The shell 1 is used as the main installation base. During the production and processing of the metalworking fluid, the finished metalworking fluid is introduced into the temperature control chamber 11, and the temperature is automatically adjusted first to prevent temperature fluctuations from affecting the detection accuracy of the lubricity. After the automatic temperature adjustment, the metalworking fluid is sent to the detection chamber 14, and the lubricity of the metalworking fluid is automatically detected by the test device 3. The filter screen 4 is fixed by the temperature control device 2, so as to automatically filter the metalworking fluid to prevent impurities from entering the detection chamber 14 and affecting the detection accuracy of the lubricity.

[0029] Furthermore, the temperature regulating device 2 includes a sensing component 21 and a regulating component 22. A sensing chamber 12 is provided on one side of the temperature regulating chamber 11. The sensing component 21 is placed in the sensing chamber 12. The sensing component 21 includes a thermal expansion airbag 211, a heat exchange plate 212, a pressure plate 213 and an induction coil 215. A plurality of heat exchange plates 212 are provided. The upper ends of the plurality of heat exchange plates 212 are inserted into the temperature regulating chamber 11. The lower ends of the heat exchange plates 212 are inserted into the thermal expansion airbag 211. The thermal expansion airbag 211 is placed in the sensing chamber 1 2, the upper end of the thermal expansion airbag 211 is tightly connected to the upper wall of the induction chamber 12, the lower end of the thermal expansion airbag 211 is tightly connected to the pressure plate 213, the lower end of the pressure plate 213 is provided with a magnetic core 214, the induction coil 215 is placed at the bottom of the induction chamber 12, the lower end of the magnetic core 214 is inserted into the induction coil 215, the magnetic core 214 and the induction coil 215 constitute a temperature measurement circuit, the adjustment component 22 is electrically connected to the temperature measurement circuit, and the adjustment component 22 is used to adjust the instantaneous heat exchange amount of the metalworking fluid.

[0030] During the previous production process, the metalworking fluid will produce temperature fluctuations. The temperature of the metalworking fluid will affect its own lubricity. By setting the induction component 21, the temperature of the metalworking fluid is automatically detected. After the detection is completed, the temperature is automatically adjusted by the adjustment component 22, so as to ensure that the temperature of the metalworking fluid entering the detection chamber 14 remains consistent, which is conducive to ensuring the accuracy of the detection. After the metalworking fluid is pumped into the temperature adjustment chamber 11, the heat is exchanged between the heat exchange plate 212 and the compressed gas in the thermal expansion airbag 211. When the temperature of the metalworking fluid is too high, the gas in the thermal expansion airbag 211 expands and deforms through heat exchange, pushing the pressure plate 213 to move downward, so that the magnetic core 214 moves in the inner circle of the induction coil 215, cuts the magnetic flux line, and generates an induced current. The magnitude of the induced current on the temperature measurement circuit is positively correlated with the magnitude of the metalworking fluid temperature. The more the metalworking fluid is over-temperature, the greater the current on the temperature measurement circuit. According to the magnitude of the current, the subsequent instantaneous heat exchange of the metalworking fluid is adjusted by the adjustment component 22.

[0031] Furthermore, the regulating assembly 22 includes a lifting cylinder 221, a pressure regulating seat 222, an adjusting motor 224 and a guide plate 225. The temperature regulating chamber 11 is a "T"-shaped structure. The lifting cylinder 221 is placed at the upper end of the temperature regulating chamber 11. The output end of the lifting cylinder 221 is firmly connected to the pressure regulating seat 222. The pressure regulating seat 222 is slidably connected to the upper end of the temperature regulating chamber 11. The pressure regulating seat 222 is provided with a compression surface 2221, a flat flow surface 2222 and a diffusion surface 2223 in sequence along the metalworking fluid diversion direction. The compression surface 2221 and the diffusion surface 2223 are arranged obliquely, the compression surface 2221 is located at a low end near the flat flow surface 2222, and the diffusion surface 2223 is located at a low end near the flat flow surface 2222. An adjusting groove 15 is provided on the shell 1, and a direction adjustment motor 224 is placed in the adjusting groove 15. The output end of the direction adjustment motor 224 is fastened to the guide plate 225, and the end of the guide plate 225 faces the detection cavity 14. A plurality of cooling plates 223 are extended outward from the diffusion surface 2223.

[0032] The temperature regulating chamber 11 is set in a T shape, wrapping the horizontal section and the 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 located in the vertical section of the temperature regulating chamber 11, and is used to output displacement, driving 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 regulating chamber 11. When the pressure regulating seat 222 moves downward, the metalworking fluid enters the flow channel formed between the compression surface 2221 and the horizontal section. The flow rate is reduced, thereby increasing the flow rate; when entering the flow channel between the flat surface 2222 and the horizontal section, the flow rate is the largest; when entering the flow channel between the diffusion surface 2223, the upper surface of the guide plate 225 and the horizontal section, due to the reduction in instantaneous flow rate, the metalworking fluid enters the diffusion surface 2223 and disperses to the surroundings. The metalworking fluid contacts the cooling plate 223 on the diffusion surface 2223, and the metalworking fluid is cooled by the cooling plate 223, so that the temperature of the metalworking fluid reaches the standard value, thereby improving the detection accuracy.

[0033] Furthermore, the lifting cylinder 221 and the direction adjustment motor 224 are electrically connected to the temperature measuring circuit respectively.

[0034] According to the current value on the temperature measuring circuit, the output current on the lifting cylinder 221 and the direction adjustment motor 224 is automatically adjusted. When the current value of the temperature measuring circuit is larger, the lifting cylinder 221 controls the pressure regulating seat 222 to move downward by a larger distance, that is, the metalworking fluid flowing out of the flat surface 2222 has a faster flow rate, so that the negative pressure area where the metalworking fluid enters the diffusion surface 2223 is larger. Under the action of pressure, part of the metalworking fluid moves toward the diffusion surface 2223, and the more it contacts with the cooling fins 223, the greater the instantaneous heat exchange. At the same time, the direction adjustment motor 224 drives the guide plate 225 to deflect upward, increasing the contact area between the metalworking fluid and the cooling fins 223 and improving the heat exchange efficiency.

[0035] Furthermore, the filter screen 4 is arranged obliquely along the compression surface 2221 , a slag dropping groove 13 is provided at the lower side of the temperature adjustment chamber 11 , and the end of the filter screen 4 faces the slag dropping groove 13 .

[0036] By setting the filter screen 4 and arranging it obliquely along the lower end of the compression surface 2221, when the metalworking fluid enters the flow channel between the compression surface 2221 and the horizontal section of the temperature adjustment chamber 11, the instantaneous flow velocity increases as the flow cross-sectional area gradually decreases. At the same time, through the inclined arrangement, the metalworking fluid flushes the surface of the filter screen 4 and flushes the impurities into the slag trough 13, thereby preventing the impurities from accumulating and affecting the filtering efficiency.

[0037] Furthermore, the thickness of the filter screen 4 is gradually set, and the thickness of the filter screen 4 gradually decreases along the direction of feeding the metalworking fluid.

[0038] Through the thickness gradient setting, the upper end is fixed on the compression surface 2221, and the lower end is the movable end. When the water flow impacting the filter screen 4 drives it to vibrate, the impurity deposition efficiency is reduced due to the different vibration frequencies.

[0039] Furthermore, the test device 3 includes a driving motor 31, a fixed ball 33 and a fixed ball 34. The driving motor 31 is fastened to the detection chamber 14, the output end of the driving motor 31 is transmission-connected to the fixed ball 33, the fixed ball 34 is fastened to the detection chamber 14, and the outer cylindrical surface of the fixed ball 33 is in contact with the fixed ball 34.

[0040] The driving motor 31 is fixed on the wall of the detection chamber 14 and is used to output torque to drive the fixed rotating ball 33 to rotate. A plurality of fixed balls 34 can be provided and installed in the detection chamber 14. The outer circumferential surfaces of the fixed rotating balls 33 and 34 are in a friction contact state. When performing detection, the driving motor 31 outputs rated power, and the filtered isothermal metalworking fluid enters the contact part between the fixed rotating balls 33 and 34 and lubricates the friction pair. When the lubricity is qualified, the rotation speed of the fixed rotating ball 33 remains unchanged under the rated power maintained by the driving motor 31, thereby performing real-time detection of the lubricity of the metalworking fluid.

[0041] As an optimization, the test device 3 also includes a test component 32, which is sleeved on the output shaft of the drive motor 31. The test component 32 includes a centrifugal disk 321, a tension spring 322, a test coil 323 and an eccentric rod 324. The centrifugal disk 321 is tightly connected to the output shaft of the drive motor 31, and a test slot is provided on the centrifugal disk 321. The eccentric rod 324 is rotatably connected to the test slot. A tension spring 322 is provided on one side of the eccentric rod 324, and the end of the tension spring 322 is tightly connected to the wall of the test slot. The test coil 323 is placed in the test slot. The eccentric rod 324 is an inverted "L" shape, and the end of the eccentric rod 324 away from the rotation center is inserted into the test coil 323. The eccentric rod 324 is made of magnet material. During the inspection, the centrifugal disc 321 is sleeved on the output shaft of the driving motor 31. The output shaft of the driving motor 31 is used to drive the fixed rotating ball 33 to rotate, and the rotation speeds of the centrifugal disc 321 and the fixed rotating ball 33 are kept at the same. During the rotation, the eccentric rod 324 in the eccentrically arranged test groove on the centrifugal disc 321 overcomes the elastic force of the tension spring 322 under the action of centrifugal force and rotates, and the end away from the rotation center is inserted into the test coil 323. Therefore, when the rotation speed of the fixed rotating ball 33 is constant, the eccentric rod 324 is inserted into the depth of the test coil 323 and no longer rotates. When the rotation speed decreases, the eccentric rod 324 rotates in the opposite direction to the initial rotation direction under the action of the tension spring, generating a fluctuating current, thereby automatically inspecting the production quality of the metalworking fluid.

[0042] As an optimization, the test device 3 further includes a three-way valve 35, the three-way valve 35 is connected to the outlet of the detection chamber 14, the eccentric rod 324 and the test coil 323 constitute a detection circuit, and the three-way valve 35 is electrically connected to the test coil 323. By setting the three-way valve 35, a mode of one inlet and two outlets is adopted, and the three-way valve 35 automatically switches the outlet according to the fluctuating current on the detection circuit, thereby automatically distinguishing and diverting qualified products and unqualified products.

[0043] The working principle of the present invention is as follows: after the metalworking fluid is pumped into the temperature regulating chamber 11, heat is exchanged between the heat exchange plate 212 and the compressed gas in the thermal expansion airbag 211. When the temperature of the metalworking fluid is too high, the gas in the thermal expansion airbag 211 expands and deforms through heat exchange, pushing the pressure plate 213 to move downward, so that the magnetic core 214 moves in the inner circle of the induction coil 215, cutting the magnetic flux lines, and generating an induced current. The magnitude of the induced current on the temperature measuring circuit is positively correlated with the magnitude of the metalworking fluid temperature. The more the metalworking fluid is over-temperatured, the greater the current on the temperature measuring circuit. According to the magnitude of the current, the subsequent instantaneous heat exchange amount of the metalworking fluid is adjusted by the regulating component 22. When the pressure regulating seat 222 moves downward, the flow channel formed between the compression surface 2221 and the horizontal section of the metalworking fluid is reduced, thereby increasing the flow rate. When entering the flat surface 222 2 and the horizontal section, the flow velocity is the largest; when entering the diffusion surface 2223, the flow passage between the upper surface of the guide plate 225 and the horizontal section, due to the reduction of the instantaneous flow velocity, the metalworking fluid enters the diffusion surface 2223 and disperses around, the metalworking fluid contacts the cooling plate 223 on the diffusion surface 2223, and the cooling plate 223 is used to cool the metalworking fluid, so that the temperature of the metalworking fluid reaches the standard value, thereby improving the detection accuracy; when the current value of the temperature measurement circuit is larger, the lifting cylinder 221 controls the pressure regulating seat 222 to move downward, that is, the flow velocity of the metalworking fluid flowing out of the flat flow surface 2222 is faster, so that the negative pressure area where the metalworking fluid enters the diffusion surface 2223 is larger, and under the action of pressure, part of the metalworking fluid moves toward the diffusion surface 2223, and contacts more cooling plates 223, and the instantaneous heat exchange is greater. At the same time, the deflector 225 is driven to deflect upward by the steering motor 224, so as to increase the contact area between the metalworking fluid and the cooling plate 223 and improve the heat exchange efficiency.

[0044] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A detection device with impurity filtering function for metalworking fluid production, characterized in that: The detection device comprises a housing (1), a temperature regulating device (2), a test device (3) and a filter (4); the housing (1) is provided with a temperature regulating chamber (11) and a detection chamber (14); the temperature regulating device (2) is disposed in the temperature regulating chamber (11); the test device (3) and the detection chamber (14) are connected; the temperature regulating chamber (11) and the detection chamber (14) are arranged in sequence along a conveying direction of the metalworking fluid; and the filter (4) and the temperature regulating device (2) are connected; The temperature regulating device (2) comprises a sensing component (21) and a regulating component (22); a sensing chamber (12) is provided on one side of the temperature regulating chamber (11); the sensing component (21) is placed in the sensing chamber (12); the sensing component (21) comprises a thermal expansion airbag (211), a heat exchange plate (212), a pressure plate (213) and an induction coil (215); a plurality of the heat exchange plates (212) are provided; the upper ends of the plurality of heat exchange plates (212) are inserted into the temperature regulating chamber (11); the lower ends of the heat exchange plates (212) are inserted into the thermal expansion airbag (211); and the thermal expansion airbag (211) is placed in the sensing chamber (12); The lower end of the thermal expansion airbag (211) is tightly connected to the pressure plate (213); a magnetic core (214) is provided at the lower end of the pressure plate (213); the induction coil (215) is disposed at the bottom end of the induction cavity (12); the lower end of the magnetic core (214) is inserted into the induction coil (215); and the magnetic core (214) and the induction coil (215) form a temperature measurement circuit.

2. The detection device with impurity filtering function for metalworking fluid production according to claim 1, characterized in that: The upper end of the thermal expansion airbag (211) is tightly connected to the upper wall of the sensing chamber (12), the regulating component (22) is electrically connected to the temperature measurement circuit, and the regulating component (22) is used to regulate the instantaneous heat exchange amount of the metalworking fluid.

3. The detection device with impurity filtering function for metalworking fluid production according to claim 2, characterized in that: The regulating assembly (22) comprises a lifting cylinder (221), a pressure regulating seat (222), a direction adjustment motor (224), and a guide plate (225); the temperature regulating chamber (11) is a "T"-shaped structure; the lifting cylinder (221) is disposed at the upper end of the temperature regulating chamber (11); the output end of the lifting cylinder (221) and the pressure regulating seat (222) are tightly connected; the pressure regulating seat (222) and the upper end of the temperature regulating chamber (11) are slidably connected; the pressure regulating seat (222) is provided with a compression surface (2221), a flat flow surface (2222), and a diffusion surface (2223) in sequence along the metalworking fluid diversion direction; the compression surface (2221) and the flat flow surface (2222) are arranged at the upper end of the temperature regulating chamber (11); The surface (2221) and the diffusion surface (2223) are arranged obliquely, the compression surface (2221) is located at a low end close to the flat surface (2222), and the diffusion surface (2223) is located at a low end close to the flat surface (2222). The housing (1) is provided with an adjustment groove (15), the direction adjustment motor (224) is placed in the adjustment groove (15), the output end of the direction adjustment motor (224) is tightly connected to the guide plate (225), the end of the guide plate (225) faces the detection cavity (14), and the diffusion surface (2223) is provided with a plurality of cooling plates (223) extending outward.

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

5. The detection device with impurity filtering function for metalworking fluid production according to claim 4, characterized in that: The filter screen (4) is arranged obliquely along the compression surface (2221); a slag dropping groove (13) is provided at the lower side of the temperature adjustment chamber (11); and the end of the filter screen (4) faces the slag dropping groove (13).

6. A detection device with impurity filtering function for metalworking fluid production according to claim 5, characterized in that: The filter screen (4) is provided with a gradually changing thickness, and the thickness of the filter screen (4) gradually decreases along the direction in which the metalworking fluid is delivered.

7. A detection device with impurity filtering function for metalworking fluid production according to claim 6, characterized in that: The test device (3) comprises a drive motor (31), a fixed rotating ball (33) and a fixed ball (34); the drive motor (31) is tightly connected to the detection chamber (14); the output end of the drive motor (31) is transmission-connected to the fixed rotating ball (33); the fixed ball (34) is tightly connected to the detection chamber (14); and the outer cylindrical surface of the fixed rotating ball (33) is in contact with the fixed ball (34).

8. The detection device with impurity filtering function for metalworking fluid production according to claim 7, characterized in that: The test device (3) further comprises a test assembly (32), wherein the test assembly (32) is sleeved on the output shaft of the drive motor (31), and 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) is tightly connected to the output shaft of the drive motor (31), a test slot is provided on the centrifugal disc (321), the eccentric rod (324) is rotatably connected to the test slot, a tension spring (322) is provided on one side of the eccentric rod (324), the end of the tension spring (322) is tightly connected to the wall of the test slot, the test coil (323) is placed in the test slot, the eccentric rod (324) is in an inverted "L" shape, and the 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 a magnet.

9. A detection device with impurity filtering function for metalworking fluid production according to claim 8, characterized in that: The test device (3) further comprises a three-way valve (35), wherein the three-way valve (35) is connected to an outlet of the detection chamber (14), 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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