A kind of mechanorheological polishing liquid circulation device

Abstract

The present invention discloses a mechanorheological polishing liquid circulation device, comprising a workbench, the workbench is equipped with a linear slider mechanism and a conversion mechanism, a suction and push mechanism is connected between the linear slider mechanism and the conversion mechanism, the conversion mechanism is equipped with a liquid storage tank mechanism and a liquid outlet pipe, and a sensor is installed on the side of the workbench. The device mainly drives the suction and push mechanism to suck and push out the polishing liquid through the linear slider mechanism, so as to promote the circulation of the polishing liquid. The structure is ingenious, so that the polishing liquid is evenly mixed during circulation, and the occurrence of stratification is avoided, and the state of the polishing liquid is ensured to be maintained within the range that meets the process requirements, which is conducive to the application and promotion of the polishing liquid circulation device in the field of precision and ultra-precision processing equipment technology.

Description

Technical Field

[0001] The invention relates to the technical field of precision and ultra-precision machining, and is a mechanorheological polishing liquid circulation device. Background Art

[0002] Polishing refers to a processing method that uses mechanical, chemical or electrochemical effects to reduce the surface roughness of a workpiece to obtain a bright and flat surface. It is a modification process of the workpiece surface using polishing tools and abrasive particles or other polishing media. The polishing liquid is a water-soluble polishing agent that does not contain any sulfur, phosphorus or chlorine additives. The polishing liquid has good degreasing, rust prevention, cleaning and gloss enhancement properties, and can make metal products show a true metallic luster. It has the advantages of stable performance, non-toxicity, and no pollution to the environment.

[0003] Polishing has always been an important technical means in the field of ultra-precision machining to achieve a smooth, well-integrity or even damage-free workpiece surface. Mechanorheological polishing technology is an ultra-precision technology that is particularly suitable for polishing complex curved surfaces. During mechanorheological polishing, as the speed of the polishing fluid continues to increase, shear thickening occurs in the contact area between the polishing fluid and the workpiece, which enhances the holding force of the abrasive or micro-powder. The polishing abrasive or micro-powder in the polishing fluid produces a micro-cutting effect on the workpiece, achieving material removal on the workpiece surface, thereby achieving polishing of the workpiece surface.

[0004] However, during the mechanorheological polishing process, as the polishing process continues, the centrifugal force generated by the high speed of the polishing liquid causes the dispersed medium, solid phase particles, abrasive particles, adsorbed phase and other substances in the polishing liquid to stratify due to different masses. As the stratification phenomenon worsens, the shear thickening performance of the polishing liquid decreases, making the polishing efficiency lower and the effect worse. At present, there is no good solution to the problem of polishing liquid stratification. Most of them are mixed again by manual stirring when polishing stops. In addition, in the process of polishing with mechanorheological polishing liquid, the abrasive particles must be tightly wrapped with other particles to exert good performance and obtain better efficiency and quality. However, there is currently no suitable technology to control the stratification phenomenon during polishing. Summary of the invention

[0005] In order to overcome the defects in the above-mentioned prior art, the purpose of the present invention is to provide a mechanorheological polishing liquid circulation device, which can circulate the mechanorheological polishing liquid during the polishing process, so that the polishing liquid is evenly mixed, avoiding the occurrence of stratification, and ensuring that the state of the polishing liquid remains within the range that meets the process requirements, which is conducive to the application and promotion of the polishing liquid circulation device in the field of precision and ultra-precision machining equipment technology.

[0006] In order to achieve the above-mentioned invention objectives, the present invention adopts the following technical solutions: a mechanorheological polishing liquid circulation device, comprising a workbench, the workbench is equipped with a linear slider mechanism, a conversion mechanism and a sensor, a suction and ejection mechanism is connected between the linear slider mechanism and the conversion mechanism, the upper layer of the converter and the lower layer of the converter of the conversion mechanism are assembled to form a fluid cavity with a hollow interior, the conversion rod of the conversion mechanism is connected with a conversion paddle, and the conversion paddle is adapted to the fluid cavity inside the conversion mechanism; it also includes a liquid storage tank mechanism and a liquid outlet pipe, the polishing liquid in the liquid storage tank mechanism flows to the liquid outlet pipe through the conversion mechanism, and the liquid outlet of the liquid outlet pipe is located above the liquid storage tank mechanism.

[0007] As a preferred solution of the present invention, the linear slider mechanism includes a driving motor, a reducer, an electric push rod, a positioning seat, a linear slider, a linear guide and a linear guide base. The linear guide base is installed on a workbench, a linear guide is connected between two linear guide bases, a linear slider is installed on the linear guide, the linear slider is connected to the electric push rod, the electric push rod is installed on the workbench through the positioning seat and connected to the reducer, and the reducer is connected to the driving motor.

[0008] As a preferred solution of the present invention, the two linear slider mechanisms are installed on both sides of the workbench, are symmetrically distributed, and are respectively connected to the two suction and ejection mechanisms.

[0009] As a preferred solution of the present invention, the suction and ejection mechanism includes a piston fixing plate, a piston rod, and a piston cylinder. The piston fixing plate is installed on the linear slider, the piston fixing plate is connected to the piston rod, and the piston rod is connected to the piston cylinder.

[0010] As a preferred solution of the present invention, the piston cylinder is connected to the conversion mechanism and communicates with the fluid cavity inside the conversion mechanism.

[0011] As a preferred solution of the present invention, the conversion mechanism also includes a rotating rod and a converter cylinder. The lower layer of the converter is installed on the workbench, the upper layer of the converter is installed above the lower layer of the converter, the conversion rod is equipped with a conversion paddle and is connected to the lower layer of the converter, and the converter cylinder is installed on the back of the workbench and is connected to the conversion rod through the rotating rod.

[0012] As a preferred solution of the present invention, the upper layer of the converter is provided with two circular holes adapted to the fluid cavity inside the conversion mechanism.

[0013] As a preferred embodiment of the present invention, the liquid reservoir mechanism includes a liquid reservoir, which is connected to the fluid cavity in the conversion mechanism and is provided with a blocking ball mechanism at the connection, the blocking ball mechanism includes a swing arm, a blocking ball, a swing arm sleeve flange, a swing shaft, a push-pull rod, a liquid reservoir cylinder, a connecting shaft and a cylinder bracket, the swing shaft is connected to the swing arm sleeve flange and installed on the liquid reservoir, the swing arm is installed at one end of the swing shaft, the two blocking balls are installed on both sides of the swing arm, the push-pull rod is connected to the swing shaft, the cylinder bracket is connected to the connecting shaft and installed on the liquid reservoir, and a liquid reservoir cylinder is connected between the connecting shaft and the push-pull rod.

[0014] As a preferred solution of the present invention, the liquid storage tank is provided with two circular holes adapted to the upper structure of the converter.

[0015] As a preferred solution of the present invention, the liquid outlet pipe is installed on the side of the conversion mechanism and communicates with the fluid cavity inside the conversion mechanism.

[0016] Compared with the prior art, the present invention has the following beneficial effects: a mechanorheological polishing liquid circulation device in the present invention drives the suction and ejection mechanism to reciprocate within a certain range through a linear slider mechanism, sucks the polishing liquid stored in the liquid storage tank mechanism, and ejects the polishing liquid in the fluid cavity of the conversion mechanism, while the conversion paddle in the conversion mechanism ensures the circulation efficiency of the polishing liquid, and the polishing liquid then circulates back to the liquid storage tank mechanism through the liquid outlet pipe. The entire circulation process allows the polishing liquid to be evenly mixed, avoiding the occurrence of stratification, and ensuring that the state of the polishing liquid remains within the range that meets the process requirements. The device has an ingenious structure and a high degree of mechanization, which is conducive to the application and promotion of the polishing liquid circulation device in the field of precision and ultra-precision machining equipment technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a mechanorheological polishing liquid circulation device in an embodiment;

[0018] Figure 2 Schematic diagram of the structure of a linear slider mechanism of a mechanorheological polishing liquid circulation device in an embodiment;

[0019] Figure 3 It is a schematic diagram of the structure of the suction and ejection mechanism of a mechanorheological polishing liquid circulation device in the embodiment;

[0020] Figure 4 It is a schematic diagram of the conversion mechanism structure of a mechanorheological polishing liquid circulation device in an embodiment;

[0021] Figure 5 It is a schematic diagram of the internal structure of a conversion mechanism of a mechanorheological polishing liquid circulation device in an embodiment;

[0022] Figure 6 It is a schematic diagram of the structure of a liquid storage tank mechanism of a mechanorheological polishing liquid circulation device in an embodiment.

[0023] Figure numerals: 1. workbench; 2. linear slider mechanism; 3. suction and ejection mechanism; 4. conversion mechanism; 5. liquid storage tank mechanism; 6. liquid outlet pipe; 7. sensor; 2-1. drive motor; 2-2. reducer; 2-3. electric push rod; 2-4. positioning seat; 2-5. linear slider; 2-6. linear guide; 2-7. linear guide base; 3-1. piston cylinder; 3-2. piston rod; 3-3. piston fixing plate; 4-1. converter upper layer; 4-2. converter lower layer; 4-3. conversion rod; 4-4. rotating rod; 4-5. converter cylinder; 4-6. conversion paddle; 4-7 fluid chamber; 5-1. liquid storage tank; 5-2. swing arm; 5-3. blocking ball; 5-4. swing arm sleeve flange; 5-5. swing shaft; 5-6. push-pull rod; 5-7. liquid storage tank cylinder; 5-8. connecting shaft; 5-9. cylinder bracket. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] like Figures 1 to 6As shown, a mechanorheological polishing liquid circulation device includes a workbench 1, which is mainly used for fixing parts. The linear slider mechanism 2 is fixedly installed on both sides of the workbench to drive the suction and push-out mechanism 3 to reciprocate within a certain range. The suction and push-out mechanism 3 is fixedly installed on the linear slider 2-5 of the linear slider mechanism 2, and can suck and push out the polishing liquid. In order to promote the circulation and mixing of the polishing liquid and avoid the occurrence of stratification, the converter upper layer 4-1 and the converter lower layer 4-2 of the conversion mechanism 4 are connected to form a hollow fluid cavity 4-7 for sucking and pushing out the polishing liquid, and the two ports of the fluid cavity 4-7 are respectively connected to the two piston cylinders 3-1 of the suction and push-out mechanism. In order to improve the circulation efficiency of the polishing liquid, the shape and size of the above-mentioned conversion paddle 14 are set to match the fluid cavity 4-7 inside the conversion mechanism 4, and the conversion paddle 4-6 will rotate to the cavity on the side of sucking the polishing liquid, cooperate with the fluid cavity 4-7 on this side to form a vacuum state, accelerate the absorption of the polishing liquid, and the cavity on the side of pushing out the polishing liquid is connected to the liquid outlet pipe 6, so that the polishing liquid can be pushed out smoothly. The above-mentioned conversion mechanism 4 transmits signals through the sensors 7 installed on both sides of the workbench 1, and can absorb the polishing liquid in the liquid storage tank 5-1 and push it out to the liquid outlet pipe 6 according to the movement of the linear slider mechanism 2, and the liquid outlet pipe 6 is connected to the side of the conversion mechanism 4, so that the polishing liquid can be circulated to the polishing tank. A liquid storage tank mechanism 5 is installed above the above-mentioned conversion mechanism 4, which can store the polishing liquid flowing out of the polishing tank in the liquid storage tank 5-1. The device mainly drives the reciprocating motion of the suction and pushing mechanism 3 through the linear slider mechanism 2 installed with the driving motor 2-1, and absorbs the polishing liquid flowing into the liquid storage tank mechanism 5 from the polishing tank into the fluid cavity 4-7 of the conversion mechanism 4, and pushes it out to the liquid outlet pipe 6, so that the polishing liquid that has ended the circulation flows back to the polishing tank. The entire device realizes the circulation of the mechanorheological polishing liquid during the polishing process, so that the polishing liquid is evenly mixed, the occurrence of stratification is avoided, and the state of the polishing liquid is maintained within the range that meets the process requirements.

[0026] The linear slider mechanism in this embodiment includes a driving motor 2-1, a speed reducer 2-2, an electric push rod 2-3, a positioning seat 2-4, a linear slider 2-5, a linear guide 2-6, and a linear guide base 2-7. The linear guide base 2-7 is fixedly mounted on the workbench 1, and a linear guide 2-6 is connected between the two linear guide bases 2-7. The linear slider 2-5 is mounted on the linear guide 2-6, and the linear slider 2-5 is connected to the electric push rod 2-3. The electric push rod 2-3 is fixedly mounted on the workbench 1 through the positioning seat 2-4 and is connected to the speed reducer 2-2. The speed reducer 2-2 is connected to the driving motor 2-1, which is a servo motor. When the linear slider mechanism is working, the driving motor 2-1 rotates clockwise or counterclockwise to realize the forward or backward movement of the electric push rod 2-3, so that the linear slider 2-5 reciprocates on the linear guide 2-6.

[0027] In order to realize the absorption and push-out of the polishing liquid, the two linear slider mechanisms 2 are installed on both sides of the workbench 1, symmetrically distributed, and connected to the two absorption and push-out mechanisms 3. The forward and backward movement of the linear slider mechanism 2 can prompt the absorption and push-out mechanism 3 to absorb and push out the polishing liquid. In order to ensure the uninterrupted circulation of the polishing liquid, the movement directions of the two linear slider mechanisms 2 remain opposite.

[0028] The suction and push-out mechanism 3 in this embodiment is fixedly mounted on the linear slider 2-5, and includes a piston fixing plate 3-3, a piston rod 3-2, and a piston cylinder 3-1. The piston fixing plate 3-3 is mounted on the linear slider 2-5, and the piston fixing plate 3-3 is fixedly connected with the piston rod 3-2. The piston rod 3-2 is connected to the piston cylinder 3-1, and the piston rod 3-2 is equipped with a sealing ring and an oil seal to prevent air from flowing into the piston cylinder 3-1. The linear slider mechanism 2 drives the suction and push-out mechanism 3 to move. When the linear slider mechanism 2 moves forward, the suction and push-out mechanism 3 will suck the polishing liquid in the liquid storage tank 5-1 into the conversion mechanism 4 and the piston cylinder 3-1; when the linear slider mechanism 2 moves backward, the suction and push-out mechanism 3 will push the polishing liquid in the fluid cavity 4-7 in the conversion mechanism 4 and the piston cylinder 3-1 into the liquid outlet pipe 6. When the device is working, the two piston rods 3-2 of the suction and push-out mechanism 3 move in opposite directions. When one moves to absorb the polishing liquid, the other moves to push the polishing liquid, which is conducive to the circulation of the polishing liquid.

[0029] In order to ensure that the polishing liquid can be sucked in and pushed out, the piston cylinder 3 - 1 is connected to the above-mentioned conversion mechanism 4 and communicates with the fluid cavity 4 - 7 inside the above-mentioned conversion mechanism 4 .

[0030] In order to ensure the continuous circulation of the polishing liquid, the conversion mechanism 4 is installed on the workbench 1 and connected to the suction and ejection mechanism 3. The above-mentioned conversion mechanism includes a converter upper layer 4-1, a converter lower layer 4-2, a conversion paddle 4-6, a conversion rod 4-3, a rotating rod 4-4, and a converter cylinder 4-5. The converter lower layer 4-2 is fixedly installed on the workbench 1, and the converter upper layer 4-1 is installed above the converter lower layer 4-2. The above-mentioned conversion rod 4-3 equipped with the conversion paddle 4-6 passes through the hole of the converter lower layer 4-2, so that the conversion paddle 4-6 is placed in the fluid cavity 4-7, and a sealing ring is installed on the outside of the hole of the converter lower layer 4-2 to prevent the polishing liquid from flowing out. In order to enable the conversion paddle 4-6 to rotate, the conversion rod 4-3 is fixedly connected to the rotating rod 4-4, the converter cylinder 4-5 is arranged to be fixedly installed on the back of the workbench 1, and the rotating rod 4-4 is rotatably connected to the converter cylinder 4-5. Since the conversion paddle 4-6 needs to rotate according to the movement of the suction and ejection mechanism 3, a sensor 7 is provided on the side of the workbench 1. When the linear slider mechanism 2 moves forward, the corresponding suction and ejection mechanism 3 absorbs the polishing liquid. The above-mentioned sensor 7 will sense the movement of the linear slider 2-5 and transmit the signal to the externally connected PLC. The PLC controls the operation of the solenoid valve connected to the converter cylinder 4-5, so that the piston rod of the above-mentioned converter cylinder 4-5 acts on the rotating rod 4-4, and the rotating rod 4-4 drives the conversion rod 4-3 to rotate, thereby prompting the conversion paddle 4-6 to rotate to the side of absorbing the polishing liquid; when the linear slider mechanism 2 moves backward, the above-mentioned conversion paddle 4-6 rotates to the side of pushing out the polishing liquid.

[0031] Since the polishing liquid needs to flow from the liquid storage tank 5 - 1 into the fluid cavity 4 - 7 of the conversion mechanism 4 , the converter upper layer 4 - 1 is provided with two circular holes matched with the fluid cavity 4 - 7 inside the conversion mechanism 4 .

[0032] The liquid reservoir mechanism 5 in this embodiment is fixedly installed above the conversion mechanism 4, including a liquid reservoir 5-1, the liquid reservoir 5-1 is connected to the fluid cavity 4-7 in the conversion mechanism 4 and a blocking ball mechanism is provided at the connection, the blocking ball mechanism includes a swing arm 5-2, a blocking ball 5-3, a swing arm shaft sleeve flange 5-4, a swing shaft 5-5, a push-pull rod 5-6, a liquid reservoir cylinder 5-7, a connecting shaft 5-8, and a cylinder bracket 5-9. In order to be able to store the polishing liquid flowing out of the polishing tank, the liquid reservoir 5-1 is installed on the upper layer 4-1 of the converter. In order to prevent the polishing liquid from being absorbed and flowing back to the liquid reservoir 5-1 when the push mechanism 3 is pushed out, the swing shaft 5-5 is connected to the swing arm shaft sleeve flange 5-4 and installed in the liquid reservoir 5-1, the front end of the swing shaft 5-5 is fixedly connected to the swing arm 5-2, and two blocking balls 5-3 are installed on both sides of the swing arm 5-2. In order to realize the rotation of the swing shaft 5-5, the push-pull rod 5-6 is fixedly connected to the swing shaft 5-5, and the cylinder bracket 5-9 equipped with the connecting shaft 5-8 is fixedly installed on the liquid storage tank 5-1 by screws, and the liquid storage tank cylinder 5-7 is rotatably installed between the connecting shaft 5-8 and the push-pull rod 5-6. When the device is working, the polishing liquid pushed out of the conversion mechanism is easy to flow back to the liquid storage tank 5-1, so it is necessary to set the above-mentioned blocking ball 5-3 to block the circular hole on the side of the liquid storage tank 5-1 corresponding to the polishing liquid when the polishing liquid is pushed out. In order to ensure that the rotation of the swing arm 5-2 connected with the blocking ball 5-3 corresponds to the absorption and push-out of the polishing liquid, the liquid reservoir cylinder 5-7 is connected to the sensor 7, PLC and solenoid valve. When the linear slider mechanism 2 moves forward, the corresponding absorption and push-out mechanism 3 absorbs the polishing liquid, and the liquid reservoir cylinder 5-7 acts on the push-pull rod 5-6, so that the push-pull rod 5-6 drives the swing shaft 5-5 and the swing arm 5-2 to rotate, thereby realizing the lifting of the swing arm 5-2 on the side of absorbing the polishing liquid, the blocking ball 5-3 is separated from the circular hole of the liquid reservoir 5-1, and the polishing liquid in the liquid reservoir 5-1 is sucked into the conversion mechanism; when the linear slider mechanism 2 moves backward, the swing arm 5-2 on the side of pushing out the polishing liquid descends, the blocking ball 5-3 blocks the circular hole of the liquid reservoir 5-1, and the polishing liquid in the fluid cavity 4-7 in the conversion mechanism 4 and the piston cylinder 3-1 is pushed out.

[0033] In order to enable the plugging ball 5-3 to block the circular hole on the corresponding side of the liquid reservoir 5-1 when the polishing liquid is pushed out, the liquid reservoir 5-1 is provided with two circular holes identical to the above-mentioned converter upper layer 4-1. Since when the suction and pushing mechanism 3 is working, one piston cylinder 3-1 sucks the polishing liquid, and the other piston cylinder 3-1 pushes out the polishing liquid, it is necessary to have two circular holes corresponding to the two circular holes of the above-mentioned converter upper layer 4-1.

[0034] In order to make the polishing liquid complete the circulation, the liquid outlet pipe 6 is installed on the side of the above-mentioned conversion mechanism 4 and communicated with the fluid cavity 4-7. The polishing liquid will flow to the polishing tank through the liquid outlet pipe 6, and then flow back to the liquid storage tank 5-1 through the polishing tank. The liquid outlet pipe 6 is also conducive to promoting the uniform mixing of the polishing liquid and improving the circulation efficiency.

[0035] A mechanorheological polishing liquid circulation device in the present embodiment, by arranging a workbench 1, a linear slider mechanism 2, a suction and ejection mechanism 3, a conversion mechanism 4, a liquid storage tank mechanism 5 and a liquid outlet pipe 6, can circulate the mechanorheological polishing liquid during the polishing process, so that the polishing liquid is evenly mixed, the occurrence of stratification is avoided, and the circulation efficiency is improved, which is conducive to the application and promotion of the above-mentioned polishing liquid circulation device in the field of precision and ultra-precision processing equipment technology.

[0036] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0037] Although this article uses more reference numerals in the figure: 1, workbench; 2, linear slider mechanism; 3, suction and ejection mechanism; 4, conversion mechanism; 5, liquid storage tank mechanism; 6, liquid outlet pipe; 7, sensor; 2-1, drive motor; 2-2, reducer; 2-3, electric push rod; 2-4, positioning seat; 2-5, linear slider; 2-6, linear guide; 2-7, linear guide base; 3-1, piston cylinder; 3-2, piston rod; 3-3, piston fixing plate; 4-1, converter upper layer; 4-2, converter lower layer; 4-3, conversion rod; 4-4, rotating rod; 4-5, converter cylinder; 4-6, conversion paddle; 4-7 fluid chamber; 5-1, liquid storage tank; 5-2, swing arm; 5-3, plugging ball; 5-4, swing arm sleeve flange; 5-5, swing shaft; 5-6, push-pull rod; 5-7, liquid storage tank cylinder; 5-8, connecting shaft; 5-9, cylinder bracket, etc., but the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A mechanorheological polishing liquid circulation device, characterized in that: The invention comprises a workbench (1), wherein the workbench (1) is equipped with a linear slider mechanism (2), a conversion mechanism (4) and a sensor (7); a suction and ejection mechanism (3) is connected between the linear slider mechanism (2) and the conversion mechanism (4); an upper converter layer (4-1) and a lower converter layer (4-2) of the conversion mechanism (4) are assembled to form a fluid cavity (4-7) with a hollow interior; a conversion rod (4-3) of the conversion mechanism (4) is connected to a conversion paddle (4-6); the conversion paddle (4-6) is adapted to the fluid cavity (4-7) inside the conversion mechanism (4); and further comprises a liquid storage tank mechanism (5) and a liquid outlet pipe (6); polishing liquid in the liquid storage tank mechanism (5) flows to the liquid outlet pipe (6) through the conversion mechanism (4); and a liquid outlet of the liquid outlet pipe (6) is located above the liquid storage tank mechanism (5); The conversion mechanism (4) further comprises a rotating rod (4-4) and a converter cylinder (4-5); the converter lower layer (4-2) is mounted on the workbench (1); the converter upper layer (4-1) is mounted above the converter lower layer (4-2); the conversion rod (4-3) is provided with a conversion paddle (4-6) and is connected to the converter lower layer (4-2); the converter cylinder (4-5) is mounted on the back of the workbench (1) and is connected to the conversion rod (4-3) via the rotating rod (4-4); The upper layer (4-1) of the converter is provided with two circular holes adapted to the fluid cavity (4-7) inside the conversion mechanism (4); The liquid storage tank mechanism (5) comprises a liquid storage tank (5-1), the liquid storage tank (5-1) is connected to the fluid cavity (4-7) in the conversion mechanism (4), and a blocking ball mechanism is provided at the connection, the blocking ball mechanism comprises a swing arm (5-2), a blocking ball (5-3), a swing arm shaft sleeve flange (5-4), a swing shaft (5-5), a push-pull rod (5-6), a liquid storage tank cylinder (5-7), a connecting shaft (5-8) and a cylinder bracket (5-9), the swing shaft (5-5) is connected to the swing arm shaft sleeve The flange (5-4) is installed on the liquid storage tank (5-1), the swing arm (5-2) is installed on one end of the swing shaft (5-5), the two blocking balls (5-3) are installed on both sides of the swing arm (5-2), the push-pull rod (5-6) is connected to the swing shaft (5-5), the cylinder bracket (5-9) is connected to the connecting shaft (5-8) and installed on the liquid storage tank (5-1), and a liquid storage tank cylinder (5-7) is connected between the connecting shaft (5-8) and the push-pull rod (5-6).

2. A mechanorheological polishing liquid circulation device according to claim 1, characterized in that: The linear slider mechanism (2) comprises a driving motor (2-1), a speed reducer (2-2), an electric push rod (2-3), a positioning seat (2-4), a linear slider (2-5), a linear guide rail (2-6) and a linear guide rail base (2-7); the linear guide rail base (2-7) is installed on a workbench (1); a linear guide rail (2-6) is connected between two linear guide rail bases (2-7); a linear slider (2-5) is installed on the linear guide rail (2-6); the linear slider (2-5) is connected to the electric push rod (2-3); the electric push rod (2-3) is installed on the workbench (1) through the positioning seat (2-4) and is connected to the speed reducer (2-2); the speed reducer (2-2) is connected to the driving motor (2-1).

3. A mechanorheological polishing liquid circulation device according to claim 2, characterized in that: The two linear slider mechanisms are installed on both sides of the workbench (1), are symmetrically distributed, and are respectively connected to the two suction and ejection mechanisms (3).

4. A mechanorheological polishing liquid circulation device according to claim 3, characterized in that: The suction and ejection mechanism (3) comprises a piston fixing plate (3-3), a piston rod (3-2), and a piston cylinder (3-1); the piston fixing plate (3-3) is mounted on the linear slider (2-5); the piston fixing plate (3-3) is connected to the piston rod (3-2); and the piston rod (3-2) is connected to the piston cylinder (3-1).

5. A mechanorheological polishing liquid circulation device according to claim 4, characterized in that: The piston cylinder (3-1) is connected to the conversion mechanism (4) and communicates with the fluid chamber (4-7) inside the conversion mechanism (4).

6. The mechanorheological polishing liquid circulation device according to claim 1, characterized in that: The liquid storage tank (5-1) is provided with two circular holes adapted to the structure of the upper layer (4-1) of the converter.

7. The mechanorheological polishing liquid circulation device according to claim 1, characterized in that: The liquid outlet pipe (6) is installed on the side of the conversion mechanism (4) and is communicated with the fluid cavity (4-7) inside the conversion mechanism (4).

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