Intrinsically flexible precision high speed hydraulic machine

Abstract

The present application relates to a kind of inner flexible precision high-speed hydraulic machine tool applied to machine tool field, and cutting pool is filtered by filter belt driven by conveying roller and formed into double-layer structure, magnetic fluid seal is used to ensure the rotating sealing property of baffle and conveying roller, when waste chip is cleaned, miniature electric stretching rod drives the disturbance plate to disturb water body and remove waste chip in the recess of filter belt, simultaneously, second motor drives isolation component to horizontally expand and isolate sediment waste chip, suction pump realizes waste chip suction by hollow rocker, in addition, scraper and discharge pipe mechanism driven by third motor, waste chip is separated by the rotation of baffle and water storage pipe, when fourth motor drives water storage pipe to rotate, filtered cutting fluid returns to cutting pool through reflux pipe, electromagnetic shielding material layer can prevent electromagnetic interference, ensure system stable operation, realize the full automation of waste chip cleaning and cutting fluid circulation, significantly improve cleaning efficiency and ensure machining precision.

Description

TECHNICAL FIELD

[0001] The present application relates to a precision high-speed hydraulic machine tool, in particular to an inner flexible precision high-speed hydraulic machine tool applied to the field of machine tools. BACKGROUND

[0002] The inner flexible precision high-speed hydraulic machine tool is an advanced machine tool combining high precision, high speed, flexible processing capability and hydraulic drive technology, mainly used for efficient precision machining of complex parts. In the actual machining process of the machine tool, cutting fluid is usually used to assist in cooling, lubrication, chip removal and rust prevention.

[0003] The Chinese utility model patent CN215847212U specification discloses a cutting fluid solid-liquid separation device for numerical control machine tool. The device uses a lower scraper to scrape iron filings on the lower filter plate into a first flow guide groove. The iron filings are flushed into an iron filings box from the first flow guide groove. The cutting fluid flows through the lower filter plate into a liquid storage tank, having the advantage of classified processing.

[0004] The Chinese utility model patent CN212043783U specification discloses a numerical control machine tool. The cutting fluid is separated from the iron filings by the setting of a chip removal device and a filter box, reducing the content of debris in the cutting fluid, reducing the probability of damage to the product by the cutting fluid, thereby improving the product quality and improving the product qualification rate.

[0005] The existing device is a filter screen cleaning device, which usually uses a scraper to push to clean the waste accumulated on the surface of the filter screen. However, since there may be flat brittle materials in the waste, during the scraping and pushing process, the flat brittle waste may be further broken, causing it to pass through the filter screen, polluting the filtered cutting fluid. If a track device is used for filtering, the waste clogging the surface of the filter track is also separated by gravity during the track reversing, and the cleaning degree is not enough. SUMMARY

[0006] In view of the above existing technology, the technical problem to be solved by the present application is how to efficiently clean the filter structure on the basis of filtering the mixture of cutting fluid and waste.

[0007] To solve the above problems, the present application provides an inner flexible precision high-speed hydraulic machine tool, which comprises a machine tool body, a cutting pool with an open top design is installed below the machine tool body, two symmetrically arranged conveying rollers are installed inside the cutting pool, the surfaces of the two conveying rollers are connected through a filter track, a partition plate is sealingly connected to the middle of the two conveying rollers, a push plate is installed at the bottom of the partition plate through a symmetrically arranged push assembly, the push plate is located above the lower layer of the filter track, a lead-out pipe for circulating cutting fluid is installed at the position of the inner wall of one side of the cutting pool between the partition plate and the upper layer of the filter track, a plurality of rocker arms are rotatably installed on the inner wall of the cutting pool below the lower layer of the filter track, an isolation assembly is installed on the surface of each rocker arm, the end of each rocker arm extends to the outside of the cutting pool, the surfaces of the plurality of rocker arms are connected through a conveying belt, the length of each isolation assembly is equal to the horizontal distance between two adjacent rocker arms, recesses are arranged on the surface of the filter track, and a layer of electromagnetic shielding material is installed at the bottom of the filter track.

[0008] The push assembly comprises a waterproof box, a micro electric telescopic rod is installed inside the waterproof box, an output end of the micro electric telescopic rod is connected with a movable shaft support, and the two ends of the movable shaft support are hingedly connected with the surfaces of the partition plate and the push plate.

[0009] In the above-mentioned inner flexible precision high-speed hydraulic machine tool, efficient circulation of cutting fluid and automatic cleaning of waste chips are realized through multiple structural designs, and the protection of the filter track and the cleaning quality are taken into account through a non-contact disturbance cleaning method.

[0010] As a further improvement of the present application, when the push plate moves downward to the maximum distance, the push plate is located above the lower layer of the filter track, and when the isolation assembly swings horizontally, the sum of the horizontal projection areas of the isolation assembly and the rocker arm is equal to the area of the inner wall of the cutting pool.

[0011] As a further improvement of the present application, a first motor and a second motor are installed on the outer wall of one side of the cutting pool, the output end of the first motor is connected with the end of one of the conveying rollers, and the output end of the second motor is connected with the end of one of the rocker arms.

[0012] As a further improvement of the present application, the isolation assembly comprises a fixed plate installed on the surface of the hollow rocker arm, the fixed plate and the rocker arm are in communication, a movable plate is slidingly installed on the inner wall of the fixed plate, a cleaning piece is installed on one surface of the movable plate through a connecting rod, a vertical plate is installed on the surface of the cutting pool, an elastic reset piece is installed on the surface of the movable plate, and the tail end of the elastic reset piece is connected with the surface of the rocker arm.

[0013] As a further improvement of the present application, a suction air pump is installed on the surface of the vertical plate, a branch hose is connected with the output end of the suction air pump, and the tail end of the branch hose is connected with the end of the rocker arm through a rotary joint.

[0014] When the movable plate is placed vertically, the tail end of the cleaning piece is located at the top end of the fixed plate surface; when the movable plate is placed horizontally, the tail end of the cleaning piece is located at the tail end of the fixed plate surface.

[0015] As a further improvement of the present application, an annular permanent magnet is sleeved on the surface of the conveying roller, and an arc-shaped magnetic conductive groove is provided on the surface of the partition close to the annular permanent magnet, and magnetic fluid is injected into the magnetic conductive groove to form a magnetic fluid seal.

[0016] As another improvement of the present application, a No. 3 motor is installed on the outer wall of the other side of the cutting pool, and the output end of the No. 3 motor is connected to a screw arranged parallel to the rocker arm. The surface of the screw is threadedly connected to a scraper in contact with the bottom wall of the cutting pool. The bottom side of the cutting pool is connected to a discharge pipe through a feed port. A discharge port is provided at the bottom of the discharge pipe. A water storage pipe is rotatably installed inside the discharge pipe, and a surrounding baffle is installed on the surface of the water storage pipe. A water inlet pipe arranged at intervals from the baffle is installed around and through the surface of the water storage pipe, and a baffle net and a one-way valve are installed inside the water inlet pipe.

[0017] As another improvement of the present application, a No. 4 motor is installed at one end of the discharge pipe, and a reflux pipe is installed at one end of the water storage pipe, and the tail end of the reflux pipe extends to the space below the partition, and a water pump is installed in the middle of the reflux pipe.

[0018] To summarize, the filter belt in the cutting pool is driven by the conveyor roller to form an upper and lower double-layer structure. The partition and the conveyor roller use magnetic fluid seals to ensure rotational sealing. When cleaning waste chips, the micro-electric extension rod drives the toggle plate to disturb the water body to remove waste chips in the depression of the filter belt. At the same time, the No. 2 motor drives the isolation component to expand horizontally to isolate and precipitate waste chips. The suction air pump realizes waste chip suction through the hollow rocker. In addition, the scraper and discharge pipe mechanism driven by the No. 3 motor realizes waste chip dehydration and separation through the rotation of the baffle and the water storage pipe. When the No. 4 motor drives the water storage pipe to rotate, the filtered cutting fluid returns to the cutting pool through the reflux pipe. The electromagnetic shielding material layer can prevent electromagnetic interference, ensure the stable operation of the system, and realize the full automation of waste chip cleaning and cutting fluid circulation, significantly improving cleaning efficiency and ensuring processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of this application;

[0020] Figure 2 This is a diagram showing the installation of a cutting pool and a filter track according to a first embodiment of the present application;

[0021] Figure 3 This is a diagram of the recess and electromagnetic shielding material installation of the filter belt according to the first embodiment of the present application;

[0022] Figure 4 This is a diagram showing the internal structure of the cutting pool according to the first embodiment of the present application;

[0023] Figure 5 This is a cross-sectional view of the cutting pool according to the first embodiment of the present application;

[0024] Figure 6 This is a schematic diagram of the first embodiment of the present application showing a state of disturbance cleaning when the isolation assembly is placed horizontally;

[0025] Figure 7 Schematic diagram of the isolation assembly of the first embodiment of this application

[0026] Figure 8 This is a schematic diagram of the state of the isolation assembly in the first embodiment of the present application when placed vertically;

[0027] Figure 9 This is the installation diagram of the discharge pipe, No. 3 motor and scraper of the second embodiment of this application;

[0028] Figure 10 This is a cross-sectional view of a discharge pipe according to a second embodiment of the present application;

[0029] Figure 11 This is a state diagram of the discharge pipe performing solid-liquid separation in the second embodiment of the present application.

[0030] Description of the numbers in the figure:

[0031] 1. Machine tool body; 2. Cutting pool; 3. Motor No. 1; 4. Motor No. 2; 5. Suction air pump; 6. Filter track; 7. Conveyor roller; 8. Partition; 9. Toggle plate; 10. Rocker; 11. Isolation assembly; 12. Micro electric extension rod; 13. Movable shaft frame; 111. Fixed plate; 112. Movable plate; 113. Cleaning part; 114. Elastic reset part; 14. Scraper; 15. Motor No. 3; 16. Discharge pipe; 161. Feed port; 162. Discharge port; 163. Baffle; 164. Net; 165. Water storage pipe. DETAILED DESCRIPTION

[0032] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0033] The first implementation method:

[0034] Figures 1-5The present invention shows an internal flexible precision high-speed hydraulic machine tool, comprising a machine tool body 1, a cutting pool 2 with an open top is installed under the machine tool body 1, two symmetrically arranged conveying rollers 7 are installed inside the cutting pool 2, the surfaces of the two conveying rollers 7 are connected by a filter belt 6, and a partition 8 is rotatably sealed in the middle of the two conveying rollers 7. The bottom of the partition 8 is installed with a toggle plate 9 through a symmetrically arranged pushing assembly, and the toggle plate 9 is located above the lower layer of the filter belt 6. An outlet pipe for circulating cutting fluid is installed on the inner wall of one side of the cutting pool 2 at a position between the partition 8 and the upper layer of the filter belt 6. A plurality of rockers 10 located below the lower filter belt 6 are rotatably installed on the inner wall of the cutting pool 2, and an isolation assembly 11 is installed on the surface of each rocker 10. The end of each rocker 10 extends to the outside of the cutting pool 2 and the surfaces of the plurality of rockers 10 are connected by a conveyor belt. The length of each isolation assembly 11 is equal to the horizontal distance between two adjacent rockers 10. The surface of the filter belt 6 is provided with a depression, and a layer of electromagnetic shielding material is installed at the bottom of the filter belt 6.

[0035] The pushing assembly includes a waterproof box, inside which a micro electric extension rod 12 is installed. The output end of the micro electric extension rod 12 is connected to a movable shaft frame 13, and the two ends of the movable shaft frame 13 are respectively hinged to the surfaces of the partition 8 and the toggle plate 9.

[0036] An annular permanent magnet is sleeved on the surface of the conveying roller 7 , and an arc-shaped magnetic conductive groove is provided on the surface of the partition plate 8 close to the annular permanent magnet. Magnetic fluid is injected into the magnetic conductive groove to form a magnetic fluid seal.

[0037] When the toggle plate 9 moves down to the maximum distance value, the toggle plate 9 is located above the lower layer of the filter track 6. When the isolation assembly 11 swings horizontally, the sum of the horizontal projection areas of the isolation assembly 11 and the rocker 10 is the same as the inner wall area of ​​the cutting pool 2.

[0038] A No. 1 motor 3 and a No. 2 motor 4 are installed on one outer wall of the cutting pool 2, and the output end of the No. 1 motor 3 is connected to the end of one of the conveying rollers 7, and the output end of the No. 2 motor 4 is connected to the end of one of the rocking arms 10.

[0039] Specifically, since the conveying roller 7 and the partition 8 are connected in a rotating sealed manner, the space formed between the upper layer of the filter belt 6 and the partition 8 is the purification chamber, and the space formed between the lower layer of the filter belt 6 and the horizontally placed isolation assembly 11 is the cleaning chamber;

[0040] During the machining process, the mixture of waste chips and cutting fluid falls to the upper layer of the filter belt 6. Under the filtering and intercepting action of the filter belt 6, the filtered cutting fluid enters the purification chamber and is then discharged from the purification chamber through the outlet pipe for recycling. The waste chips intercepted in the depression of the filter belt 6 can be transferred to the bottom through the rotation of the filter belt 6. At this time, the micro-electric extension rod 12 in the pushing component is started to reciprocate in the horizontal direction. The extension and retraction action drives the movable shaft frame 13 to extend and retract in the vertical direction, thereby driving the toggle plate 9 to swing up and down in the water body in the space below the partition 8 in the cutting pool 2, thereby forming a disturbed water flow effect, which has a disturbing effect on the immersed filter belt 6 and the depression on its surface (such as Figure 6 As shown), the waste chips in the recess are cleaned out, and a more thorough waste chip cleaning operation can be achieved in a non-contact manner.

[0041] In addition, in order to avoid disturbing the water in the space below the partition 8 when it contains debris, the cleaning quality will be affected. Because when the water is disturbed when it contains debris, the debris will float up, the water used to immerse the filter belt 6 and the loose debris in the depression will also contain debris left over from the previous round of cleaning operations, which will re-adhere to the surface of the filter belt 6 and affect the cleaning quality, before starting the pushing component, the No. 2 motor 4 is started to drive the isolation component 11 to a horizontal position, so that the isolation component 11 can isolate the sedimented debris from the upper static water. After that, the pushing component is started for dynamic disturbance cleaning, which can avoid the floating mixing and secondary adhesion of the already settled debris, thereby ensuring the cleaning quality.

[0042] Figures 7-8 The isolation assembly 11 is shown to include a fixed plate 111 fixedly mounted on the surface of the hollow rocker 10, and the fixed plate 111 and the rocker 10 are connected, a movable plate 112 is slidably mounted on the inner wall of the fixed plate 111, a cleaning piece 113 is mounted on one surface of the movable plate 112 through a connecting rod, a vertical plate is mounted on the surface of the cutting pool 2, an elastic reset piece 114 is mounted on the surface of the movable plate 112, and the tail end of the elastic reset piece 114 is connected to the surface of the rocker 10.

[0043] A suction air pump 5 is installed on the surface of the vertical plate, and the output end of the suction air pump 5 is connected to a branch hose (not shown in the figure), and the tail end of the branch hose is connected to the end of the rocker 10 through a rotary joint.

[0044] When the movable plate 112 is placed vertically, the tail end of the cleaning member 113 is located at the top end of the surface of the fixed plate 111 ; when the movable plate 112 is placed horizontally, the tail end of the cleaning member 113 is located at the tail end of the surface of the fixed plate 111 .

[0045] Specifically, since the isolation assembly 11 has a certain length, and as the filtering operation continues, the thickness of the cutting pool 2 bottom wall debris will increase, which may submerge the bottom end of the isolation assembly 11, so when it is switched from the vertical state to the horizontal state, the surface of the isolation assembly 11 will disturb part of the debris, and follow the horizontally placed isolation assembly 11 to float into the water body between the isolation assembly 11 and the partition 8, which will affect the cleaning quality of the filtering belt 6 during subsequent disturbance.

[0046] To solve the above problems, a retractable movable isolation assembly 11 is designed, which is switched to the horizontal state first by rotating the rocker 10, so that the fixed plate 111 is in a shorter state and does not contact the accumulated debris, so that the debris is not lifted during rotation. The suction air pump 5 is used to inflate the fixed plate 111, drive the movable plate 112 to extend, and realize the isolation of the space below the partition 8, which facilitates the subsequent disturbance and cleaning operation.

[0047] After that, the isolation assembly 11 needs to be restored to the vertical state, at which time the suction air pump 5 deflates the fixed plate 111. Under the action of the elastic return member 114, which can be a spring or other components, the movable plate 112 is reset. In the process of resetting, the sheet-shaped debris adhered to the surface of the cleaning member 113 and the movable plate 112 is scraped off.

[0048] Second embodiment:

[0049] Figures 9-10 Another side outer wall of the cutting pool 2 is shown to be provided with a third motor 15, the output end of the third motor 15 is connected with a lead screw arranged in parallel with the rocker 10, the surface of the lead screw is threadedly connected with a scraper 14 in contact with the bottom wall of the cutting pool 2, one side of the bottom of the cutting pool 2 is connected with a discharge pipe 16 through a feeding port 161, the bottom of the discharge pipe 16 is provided with a discharge port 162, the inside of the discharge pipe 16 is rotatably provided with a water storage pipe 165, the surface of the water storage pipe 165 is provided with a surrounding baffle 163, and the surface of the water storage pipe 165 is surrounded and penetrates to be provided with a water inlet pipe arranged in a spaced manner with the baffle 163, the inside of the water inlet pipe is provided with a screen 164 and a one-way valve.

[0050] One end of the discharge pipe 16 is provided with a fourth motor (not shown in the figure), and one end of the water storage pipe 165 is provided with a backflow pipe, and the tail end of the backflow pipe extends to the space below the partition 8. The middle of the backflow pipe is provided with a water pump.

[0051] Different from the first embodiment, this embodiment is mainly used to discharge the debris on the bottom wall of the cutting pool 2 in the first embodiment.

[0052] Specifically, when cleaning the waste chips on the bottom wall of the cutting pool 2, the No. 3 motor 15 is started to drive the scraper 14 on the surface of the screw to move, so that the waste chips on the bottom wall of the cutting pool 2 can be pushed to the feed port 161 and enter the discharge pipe 16. As the No. 4 motor drives the water storage pipe 165 to rotate, the space between the two adjacent baffles 163 accommodates a mixture of water and waste chips. The water is filtered by the baffle 164 and then enters the water storage pipe 165 in one direction. The waste chips intercepted outside are transferred to the position of the discharge port 162 through rotation and then discharged. The water entering the water storage pipe 165 is returned to the space below the partition 8 in the cutting pool 2 through the reflux pipe and the water pump, and the water level in the space below the partition 8 continues to be stable (such as Figure 11 shown).

[0053] In summary, through the multiple structural designs, efficient circulation of cutting fluid and automatic cleaning of waste chips are achieved. The filter belt 6 in the cutting pool 2 is driven by the conveying roller 7 to form an upper and lower double-layer structure. The partition 8 and the conveying roller 7 use magnetic fluid seals to ensure rotational sealing. When cleaning waste chips, the micro electric extension rod 12 drives the toggle plate 9 to disturb the water body to remove the waste chips in the depression of the filter belt 6. At the same time, the No. 2 motor 4 drives the isolation component 11 to expand horizontally to isolate and precipitate the waste chips. The suction air pump 5 realizes waste chip suction through the hollow rocker 10. In addition, the scraper 14 and the discharge pipe 16 mechanism driven by the No. 3 motor 15 realize waste chip dehydration and separation through the rotation of the baffle 163 and the water storage pipe 165. When the No. 4 motor drives the water storage pipe 165 to rotate, the filtered cutting fluid returns to the cutting pool 2 through the reflux pipe. The electromagnetic shielding material layer can prevent electromagnetic interference, ensure the stable operation of the system, realize the full automation of waste chip cleaning and cutting fluid circulation, significantly improve the cleaning efficiency and ensure the processing accuracy.

[0054] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. An internally flexible precision high-speed hydraulic machine tool, comprising a machine tool body (1), characterized in that: A cutting pool (2) with an open top is installed below the machine tool body (1), and two symmetrically arranged conveying rollers (7) are installed inside the cutting pool (2). The surfaces of the two conveying rollers (7) are connected by a filter belt (6). A partition (8) is connected to the middle of the two conveying rollers (7) in a rotating and sealed manner. A toggle plate (9) is installed at the bottom of the partition (8) through a symmetrically arranged pushing assembly, and the toggle plate (9) is located above the lower layer of the filter belt (6). The inner wall of one side of the cutting pool (2) is located between the partition (8) and the upper layer of the filter belt (6). An outlet pipe is installed for circulating cutting fluid, a plurality of rockers (10) located below the lower filter belt (6) are rotatably installed on the inner wall of the cutting pool (2), and an isolation component (11) is installed on the surface of each rocker (10), the end of each rocker (10) extends to the outside of the cutting pool (2) and the surfaces of the plurality of rockers (10) are connected by a conveyor belt, the length value of each isolation component (11) is equal to the horizontal distance value between two adjacent rockers (10), the surface of the filter belt (6) is provided with a depression, and a layer of electromagnetic shielding material is installed on the bottom of the filter belt (6); The pushing assembly comprises a waterproof box, a micro electric extension rod (12) is installed inside the waterproof box, the output end of the micro electric extension rod (12) is connected to a movable shaft frame (13), and the two ends of the movable shaft frame (13) are respectively hinged to the surfaces of the partition plate (8) and the toggle plate (9).

2. The internally flexible precision high-speed hydraulic machine tool according to claim 1, characterized in that: When the toggle plate (9) moves downward to a maximum distance value, the toggle plate (9) is located above the lower layer of the filter crawler (6); when the isolation assembly (11) swings horizontally, the sum of the horizontal projection areas of the isolation assembly (11) and the rocker (10) is the same as the inner wall area of ​​the cutting pool (2).

3. The internally flexible high-speed hydraulic machine tool according to claim 1, characterized in that: A first motor (3) and a second motor (4) are installed on one outer wall of the cutting pool (2), and the output end of the first motor (3) is connected to the end of one of the conveying rollers (7), and the output end of the second motor (4) is connected to the end of one of the rocking arms (10).

4. The internally flexible high-speed hydraulic machine tool according to claim 3, characterized in that: The isolation assembly (11) includes a fixed plate (111) fixedly mounted on the surface of the hollow rocker (10), and the fixed plate (111) and the rocker (10) are interconnected. A movable plate (112) is slidably mounted on the inner wall of the fixed plate (111), and a cleaning member (113) is mounted on one surface of the movable plate (112) via a connecting rod. A vertical plate is mounted on the surface of the cutting pool (2), and an elastic reset member (114) is mounted on the surface of the movable plate (112), and the tail end of the elastic reset member (114) is connected to the surface of the rocker (10).

5. The internally flexible precision high-speed hydraulic machine tool according to claim 4, characterized in that: A suction air pump (5) is installed on the surface of the vertical plate, and the output end of the suction air pump (5) is connected to a branch hose, and the tail end of the branch hose is connected to the end of the rocker (10) through a rotary joint.

6. The internally flexible high-speed hydraulic machine tool according to claim 5, characterized in that: When the movable plate (112) is placed vertically, the tail end of the cleaning piece (113) is located at the top end of the surface of the fixed plate (111); when the movable plate (112) is placed horizontally, the tail end of the cleaning piece (113) is located at the tail end of the surface of the fixed plate (111).

7. The internally flexible precision high-speed hydraulic machine tool according to claim 1, characterized in that: An annular permanent magnet is sleeved on the surface of the conveying roller (7), and an arc-shaped magnetic conductive groove is provided on the surface of the partition plate (8) close to the annular permanent magnet. Magnetic fluid is injected into the magnetic conductive groove to form a magnetic fluid seal.

8. The internally flexible precision high-speed hydraulic machine tool according to claim 1, characterized in that: A third motor (15) is installed on the outer wall of the other side of the cutting pool (2), and the output end of the third motor (15) is connected to a lead screw arranged in parallel with the rocker (10), and the surface of the lead screw is threadedly connected to a scraper (14) in contact with the bottom wall of the cutting pool (2). One side of the bottom of the cutting pool (2) is connected to a discharge pipe (16) through a feed port (161), and a discharge port (162) is provided at the bottom of the discharge pipe (16), and a water storage pipe (165) is rotatably installed inside the discharge pipe (16), and a baffle (163) arranged around the surface of the water storage pipe (165) is installed, and a water inlet pipe arranged at intervals from the baffle (163) is installed around the surface of the water storage pipe (165), and a baffle (164) and a one-way valve are installed inside the water inlet pipe.

9. The internally flexible high-speed hydraulic machine tool according to claim 8, characterized in that: A No. 4 motor is installed at one end of the discharge pipe (16), and a return pipe is installed at one end of the water storage pipe (165), and the tail end of the return pipe extends to the space below the partition (8), and a water pump is installed in the middle of the return pipe.

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