CN215470511U - Cooling liquid circulation system of spring end face grinding machine - Google Patents

Abstract

The utility model relates to a cooling liquid circulation system of a spring end face grinding machine, which comprises a collecting box, a recycling pump and a cooling component, wherein the cooling component is provided with a recycling pipe connected with a liquid outlet of a main body of the grinding machine, the cooling component is provided with a water outlet, the collecting box is internally provided with a partition plate which divides the collecting box into a first box body and a second box body, the water outlet is communicated with the first box body and the second box body through a connecting pipe, the bottoms of the first box body and the second box body are respectively provided with a first recycling pipe and a second recycling pipe, the joints of the first recycling pipe and the first box body and the joints of the second recycling pipe and the second box body are respectively provided with a filter screen, the ends of the first recycling pipe and the second recycling pipe far away from the collecting box are connected with a same converging pipe, and the converging pipe is connected with a cooling liquid spray head through the recycling pump; the first recycling pipe is provided with a first valve, the second recycling pipe is provided with a second valve, and the joint of the connecting pipe and the water outlet is provided with a main valve. This application is when clearing up the filter screen, need not to stop retrieval and utilization pump and abrasive machining, and work efficiency is higher.

Description

Cooling liquid circulation system of spring end face grinding machine

Technical Field

The application relates to the field of spring processing technology, in particular to a cooling liquid circulating system of a spring end face grinding machine.

Background

The spring is processed and the end face of the spring needs to be ground, so that a smooth spring end face is obtained to guarantee the mechanical progress of the spring. The spring end face grinding machine is equipment for grinding the end face of a spring, and cooling liquid is required to be added for cooling during grinding due to heat generated in the spring grinding process.

Spring end face grinding machine among the correlation technique, as shown in fig. 1, including grinding machine main part 9 and collecting box 1, grinding machine main part 9 one side is offered and is used for the liquid outlet of leading out the coolant liquid in grinding machine main part 9, be equipped with the coolant liquid shower nozzle in grinding machine main part 9, collecting box 1 is located outside grinding machine main part 9, be connected with on the liquid outlet and carry the coolant liquid to the recycle tube 17 in collecting box 1, collecting box 1 bottom is connected with retrieval and utilization pipe 6, retrieval and utilization pipe 6 connects the input of retrieval and utilization pump 2, the output of retrieval and utilization pump 2 and the coolant liquid shower nozzle in grinding machine main part 9, retrieval and utilization pipe 6 and collecting box 1 junction install filter screen 13, there are more grinding debris in the coolant liquid in collecting box 1, after long-time use, filter screen 13 department easily takes place to block up, influence the pumping of coolant liquid, need evacuation collecting box 1 thereby clear up filter screen 13 department.

In view of the above-mentioned related art, the inventor believes that, when the filter screen is cleaned after the collecting tank is emptied, the recycling pump and the grinding process need to be stopped, which affects the efficiency of the grinding process of the end face of the spring.

SUMMERY OF THE UTILITY MODEL

In order to clear up the filter screen when can not stop pump for the non-stop and abrasive machining to guarantee machining efficiency, this application provides a spring end face grinding machine's coolant liquid circulation system.

The application provides a pair of spring face grinding machine's coolant liquid circulation system adopts following technical scheme:

a cooling liquid circulating system of a spring end face grinding machine, which comprises a collecting box, a recycling pump and a cooling component, a recovery pipe used for being connected with a liquid outlet of the grinding machine main body is arranged on the cooling component, a water outlet is arranged on the cooling component, the collecting box is internally provided with a partition board which divides the collecting box into a first box body and a second box body which are horizontally distributed, the water outlet is communicated with the first box body and the second box body through a connecting pipe, the bottom of the first box body is provided with a first recycling pipe, the bottom of the second box body is provided with a second recycling pipe, the joint of the first recycling pipe and the first box body and the joint of the second recycling pipe and the second box body are both provided with filter screens, the end parts of the first recycling pipe and the second recycling pipe, which are far away from the collecting box, are connected with the same converging pipe, the converging pipe is connected with the input end of a recycling pump, and the output end of the recycling pump is used for being connected with a cooling liquid spray head of the grinding machine main body; the first recycling pipe is provided with a first valve, the second recycling pipe is provided with a second valve, and the joint of the connecting pipe and the water outlet is provided with a main valve.

By adopting the technical scheme, the cooling assembly is used for cooling the cooling liquid output from the grinding machine main body, then the cooling liquid is introduced into the first box body and the second box body, the cooling liquid of the first box body and the cooling liquid of the second box body independently enter the converging pipe through the recycling pipe, and then are input into the cooling liquid spray head of the grinding machine main body through the recycling pump; when the filter screen in the first box blockked up, the first valve of manual closing, then take out the coolant liquid in the first box, then clear up the filter screen, in the clearance process, the coolant liquid in the second box still uses in sending into the grinding machine main part through the retrieval and utilization pump, need not stop retrieval and utilization pump and abrasive machining, has promoted spring end face abrasive machining's work efficiency to a certain extent.

Optionally, the first recycling pipe is provided with a first flow meter, and the second recycling pipe is provided with a second flow meter.

Through adopting above-mentioned technical scheme, through the velocity of flow of observing the demonstration of first flowmeter and second flowmeter, can discover the jam condition of filter screen better to in time clear up the filter screen of jam.

Optionally, a first liquid level meter is arranged in the first box body, the first liquid level meter is electrically connected with the first valve through a first controller, the first controller is used for receiving an electric signal of the first liquid level meter when the liquid level of the first liquid level meter is lower than a preset value and controlling the first valve to be closed, a second liquid level meter is arranged in the second box body, the second liquid level meter is electrically connected with the second valve through a second controller, and the second controller is used for receiving an electric signal of the second liquid level meter when the liquid level of the second liquid level meter is lower than the preset value and controlling the second valve to be closed.

By adopting the technical scheme, when the filter screen in the first water tank needs to be cleaned, the first valve is not closed firstly, on one hand, the cooling liquid in the first water tank is emptied manually, on the other hand, the cooling liquid in the first water tank is discharged more quickly through the first recycling pipe by utilizing the conveying action of the recycling pump, the speed of discharging the cooling liquid in the first water tank is increased, and the workload of emptying the cooling liquid manually is reduced; then, detecting the liquid level in the first water tank in real time through a first liquid level meter, and closing a first valve when the liquid level is lower than a preset value of a first controller to prevent air from entering a first recycling pipe after the liquid level is too low and influencing the water spraying of a cooling liquid spray head in a grinding machine main body; in the same way, when the filter screen in the second water tank needs to be cleaned, the operation can be carried out according to the operation.

Optionally, a third valve is arranged at the joint of the connecting pipe and the first box, and a fourth valve is arranged at the joint of the connecting pipe and the second box.

Through adopting above-mentioned technical scheme, when the filter screen in the first box needs to be cleared up, close the third valve, when the filter screen in the second box needs to be cleared up, close the fourth valve, rather than all closing the main valve when clearing up for when the filter screen in one of them box clears up, coolant liquid in another box still can supply.

Optionally, the third valve is electrically connected to the first flowmeter through a third controller, the third controller is configured to receive a flow rate electrical signal of the first flowmeter, and close the third valve when the flow rate electrical signal is lower than a preset value, the fourth valve is electrically connected to the second flowmeter through a fourth controller, and the fourth controller is configured to receive a flow rate electrical signal of the second flowmeter, and close the fourth valve when the flow rate electrical signal is lower than the preset value.

By adopting the technical scheme, when the flow rate detected by the corresponding flow meter is lower than the preset value, the controller controls the corresponding valve to be closed, the cooling liquid supplement of the box body blocked by the filter screen is reduced, and the third valve or the fourth valve does not need to be manually closed, so that the cooling liquid of the box body can be emptied by workers more conveniently.

Optionally, the separation plate slides along the vertical direction and is arranged in the collection box, and the collection box is provided with a driving piece for driving the separation plate to move up and down.

By adopting the technical scheme, the driving piece drives the partition plate to lift, and when the partition plate lifts, the first box body and the second box body are communicated with each other and can supplement cooling liquid mutually; can finish at the filter screen clearance of one of them box, when will clear up the filter screen of another box at once, open the division board, the quick half of the coolant liquid of the box that will treat the clearance replenishes to the box that the clearance finishes in, then utilizes the driving piece to close the division board, and the manual discharge of coolant liquid in the box that will treat the clearance again can supply the coolant liquid of the box that the clearance is good fast on the one hand, and on the other hand can discharge the coolant liquid of the box that treats the clearance fast.

Optionally, the driving piece comprises an adjusting lead screw and a sliding block, a vertical sliding groove is formed in the collecting box, the adjusting lead screw is vertically arranged and rotatably mounted on the collecting box, the adjusting lead screw is connected with the collecting box in a clamping mode along the vertical direction, the sliding block is connected in the sliding groove in a sliding mode, and the sliding block is arranged on the partition plate and is in threaded connection with the adjusting lead screw.

Through adopting above-mentioned technical scheme, rotate and adjust the lead screw, drive the slider and rise along the groove that slides to communicate first box and second box, the direction rotates and adjusts the lead screw, drives the slider and descends along the groove that slides, thereby drives the division board whereabouts, and then separates first box and second box, simple structure, convenient operation.

Optionally, the cooling assembly comprises a heat exchange inner tube, a heat exchange sleeve, a cooling medium input tube and a cooling medium output tube, one end of the heat exchange inner tube is connected with the recovery tube, the other end of the heat exchange inner tube is connected with the water outlet, the heat exchange sleeve is sleeved on the heat exchange inner tube, two ends of the heat exchange sleeve are sealed with the outer wall of the heat exchange inner tube, one end of the heat exchange sleeve is connected with the cooling medium input tube and used for introducing a cooling medium into the heat exchange sleeve, and the other end of the heat exchange sleeve is connected with the cooling medium output tube and used for discharging the cooling medium.

Through adopting above-mentioned technical scheme, cooling medium input tube connects between cooling medium lets in heat transfer inner tube, the heat transfer sleeve pipe with cooling medium to cool off the coolant liquid in the heat transfer inner tube, cooling medium passes through the cooling medium output tube, simple structure, and the cooling effect is good.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the filter screen in the first box body is blocked, the first valve is manually closed, the cooling liquid in the first box body is continuously discharged along the first recycling pipe, when the liquid level detected by the first liquid level meter is lower than a preset value, the third valve is closed, then the filter screen is cleaned, the emptying process of the cooling liquid is easier, and the recycling pump and the grinding processing do not need to be stopped for cleaning the filter screen;

2. the driving piece drives the partition plate to lift, so that the first box body is communicated with the second box body, and the cooling liquid in the emptied box body can be supplemented more quickly and conveniently;

3. the cooling medium input tube is connected with a cooling medium to lead the cooling medium into the space between the heat exchange inner tube and the heat exchange sleeve, so that the cooling liquid in the heat exchange inner tube is cooled, and the cooling medium passes through the cooling medium output tube.

Drawings

Fig. 1 is a schematic structural view of a spring end surface grinding machine in the related art.

Fig. 2 is a schematic structural diagram of an embodiment of the present application.

FIG. 3 is a sectional view of the collection box in the embodiment of the present application.

Fig. 4 is an enlarged view of a in fig. 3.

Description of reference numerals: 1. a collection box; 11. a first case; 12. a second case; 13. a filter screen; 14. a sliding groove; 15. a fixing plate; 16. a hand wheel; 17. a recovery pipe; 18. a partition plate; 2. a recycling pump; 21. a transfusion tube; 3. a cooling assembly; 31. a heat exchange inner tube; 32. a heat exchange sleeve; 33. a cooling medium input pipe; 34. a cooling medium outlet pipe; 35. a water outlet; 4. a drive member; 41. adjusting the lead screw; 42. a slider; 5. a connecting pipe; 51. a main connecting pipe; 511. a main valve; 52. a connecting pipe is branched; 6. a recycling pipe; 61. a first return pipe; 611. a first flow meter; 62. a second recycling pipe; 621. a second flow meter; 63. a junction pipe; 71. a first liquid level meter; 72. a first valve; 73. a first controller; 74. a third valve; 75. a third controller; 81. a second level gauge; 82. a second valve; 83. a second controller; 84. a fourth valve; 85. a fourth controller; 9. a grinding machine body.

Detailed Description

The present application is described in further detail below with reference to figures 2-4.

The embodiment of the application discloses cooling liquid circulation system of spring face grinding machine, refers to fig. 2, including collecting box 1, retrieval and utilization pump 2, cooling module 3.

As shown in fig. 2 and 3, the collecting box 1 is placed on the ground, a partition plate 18 is arranged in the collecting box 1 through a driving part 4, and the driving part 4 comprises an adjusting screw 41 and a sliding block 42.

As shown in fig. 2 and 4, a vertical sliding groove 14 is formed in the middle of two oppositely-arranged inner side walls of the collecting box 1, a fixing plate 15 is convexly arranged on the bottom of the sliding groove 14, the fixing plate 15 is located at the top end of the sliding groove 14, the horizontal section of the sliding groove 14 is trapezoidal, and the width of the bottom of the sliding groove 14 is larger than that of the notch. The adjusting screw 41 is rotatably mounted on the fixing plate 15, and the bottom end of the adjusting screw 41 extends into the sliding groove 14. The sliding block 42 is connected in the sliding groove 14 in a sliding mode and is in threaded connection with the adjusting screw 41, the sliding block 42 is fixedly connected with the partition plate 18, the main body part of the partition plate 18 is located below the sliding groove 14, and the lower half part of the collecting box 1 is divided into the first box body 11 and the second box body 12.

The top end of the adjusting screw 41 penetrates out of the fixing plate 15 upwards and is fixedly connected with a hand wheel 16.

As shown in fig. 2, the same connecting pipe 5 is connected to both the side wall of the first tank 11 and the side wall of the second tank 12, the connecting pipe 5 includes a main connecting pipe 51 and two branch connecting pipes 52, one end of each branch connecting pipe 52 is connected to the main connecting pipe 51, one end of each branch connecting pipe 52, which is far away from the main connecting pipe 51, is connected to the side wall of the first tank 11, and one end of each branch connecting pipe 52, which is far away from the main connecting pipe 51, is connected to the side wall of the second tank 12.

The cooling assembly 3 comprises a heat exchange inner tube 31, a heat exchange sleeve 32, a cooling medium input tube 33 and a cooling medium output tube 34.

The heat exchange sleeve 32 is cylindrical, the heat exchange sleeve 32 is sleeved outside the heat exchange inner tube 31 and is coaxially arranged, two ends of the heat exchange inner tube 31 penetrate out of two ends of the heat exchange sleeve 32 respectively, two ends of the heat exchange sleeve 32 are sealed with the outer wall of the heat exchange inner tube 31, one end, close to the main connecting tube 51, of the heat exchange inner tube 31 is a water outlet 35, and the water outlet 35 is connected with one end, far away from the collecting box 1, of the main connecting tube 51. One end of a cooling medium input pipe 33 is connected to one end of the heat exchange sleeve 32 close to the collection box 1, and the other end of the cooling medium input pipe 33 is used for being communicated with a cooling medium source and used for introducing a cooling medium into the heat exchange sleeve 32; one end of the cooling medium output pipe is connected to one end of the heat exchange sleeve 32 far away from the collection box 1, and the other end of the cooling medium output pipe 34 is connected with a pipeline for collecting the cooling medium, and is used for conveying the cooling medium back to the cooling medium source.

The end part of the heat exchange inner pipe 31 far away from the main connecting pipe 51 is connected with a recycling pipe 17, and one end of the recycling pipe 17 far away from the heat exchange inner pipe 31 is used for being connected with a liquid outlet of the grinding machine main body 9 and used for leading in cooling liquid in the grinding machine main body 9.

The side wall of the first box body 11 is connected with a first recycling pipe 61, the position where the first recycling pipe 61 is connected with the first box body 11 is located at the bottom of the first box body 11 and is close to the bottom surface, the side wall where the first recycling pipe 61 is located is the side wall opposite to the side wall where the branch connecting pipe 52 is located, and the filter screen 13 is installed at the connecting position of the first recycling pipe 61 and the side wall of the first box body 11.

The side wall of the second box body 12 is connected with a second recycling pipe 62, the position where the second recycling pipe 62 is connected with the second box body 12 is located at the bottom of the second box body 12 and is close to the bottom surface, the side wall where the second recycling pipe 62 is located is the side wall opposite to the side wall where the branch connecting pipe 52 is located, and the filter screen 13 is installed at the connection position of the second recycling pipe 62 and the side wall of the second box body 12.

First retrieval and utilization pipe 61, second retrieval and utilization pipe 62 are connected jointly on same confluent pipe 63, and the one end that first retrieval and utilization pipe 61 was kept away from to confluent pipe 63 is connected with the input of retrieval and utilization pump 2, and the output of retrieval and utilization pump 2 is connected with transfer line 21, and the one end that transfer line 21 kept away from retrieval and utilization pump 2 is connected with the coolant liquid shower nozzle in the grinding machine main part 9 for carry the coolant liquid to the coolant liquid shower nozzle.

The first tank 11 is provided with a first liquid level meter 71, the first return pipe 61 is provided with a first valve 72 and a first flow meter 611, the first liquid level meter 71 is electrically connected with the first valve 72 through a first controller 73, the first liquid level meter 71 is electrically connected with the first valve 72 through the first controller 73, and the first controller 73 is used for receiving an electric signal of the first liquid level meter 71 when the liquid level of the first liquid level meter 71 is lower than a preset value and controlling the first valve 72 to be closed.

The branch connection pipe 52 connected to the first casing 11 is provided with a third valve 74, the third valve 74 is electrically connected to the first flow meter 611 through a third controller 75, and the third controller 75 is configured to receive an electric flow rate signal of the first flow meter 611, and close the third valve 74 when the electric flow rate signal is lower than a preset value.

The second tank 12 is provided with a second liquid level meter 81, the second recycling pipe 62 is provided with a second valve 82 and a second flow meter 621, the second liquid level meter 81 is electrically connected with the second valve 82 through a second controller 83, and the second controller 83 is used for receiving an electric signal of the second liquid level meter 81 when the liquid level of the second liquid level meter 81 is lower than a preset value and controlling the second valve 82 to be closed.

The branch connection tube 52 connected to the second tank 12 is provided with a fourth valve 84, the fourth valve 84 is electrically connected to the second flowmeter 621 through a fourth controller 85, and the fourth controller 85 is configured to receive an electrical flow rate signal of the second flowmeter 621 and close the fourth valve 84 when the electrical flow rate signal is lower than a preset value.

The main connection pipe 51 is provided with a main valve 511.

The height of one end of the recovery tube 17 far away from the heat exchange inner tube 31 is greater than that of the heat exchange inner tube 31, the height of the heat exchange inner tube 31 is gradually reduced along the flow direction of the cooling liquid, and the height of the main connecting tube 51 and the height of the branch connecting tube 52 are gradually reduced along the direction from the heat exchange inner tube 31 to the collection box 1.

The implementation principle of the cooling liquid circulation system of the spring end surface grinding machine in the embodiment of the application is as follows:

when the cooling device is used, the cooling liquid is guided into the cooling assembly 3 through the recovery pipe 17, the cooling medium such as frozen brine is introduced into the cooling medium input pipe 33 of the cooling assembly 3 and then discharged from the cooling medium output pipe 34, and the cooling liquid entering the cooling assembly 3 exchanges heat with the frozen brine between the heat exchange inner pipe 31 and the heat exchange sleeve 32 through the heat exchange inner pipe 31, so that the temperature of the cooling liquid is reduced, and the cooling purpose is achieved.

Then the cooling liquid is input into the first box body 11 and the second box body 12 through the main connecting pipe 51 and the branch connecting pipe 52, the cooling liquid in the collecting box 1 is output through the first recycling pipe 61 and the second recycling pipe 62, and is converged through the converging pipe 63, and then the cooling liquid is conveyed to the cooling liquid spray head through the liquid conveying pipe 21 under the action of the recycling pump 2.

The first flow meter 611 and the second flow meter 621 are used to detect the flow rates of the first return pipe 61 and the second return pipe 62.

When the flow rate of the first flow meter 611 is less than the set value, it indicates that the filter screen 13 of the first tank 11 is clogged seriously, at this time, the third valve 74 may be closed manually or by the third controller 75, then the liquid level in the first tank 11 decreases as the cooling liquid in the first tank 11 is output through the first recycling pipe 61, and when the liquid level detected by the first liquid level meter 71 is lower than the preset value, the first controller 73 controls the first valve 72 to close after receiving an electric signal of the first liquid level meter 71, and then cleans the filter screen 13 in the first tank 11.

After cleaning is completed, the first valve 72 and the third valve 74 are opened again.

When the flow rate of the second flow meter 621 is less than the set value, it indicates that the filter 13 in the second tank 12 is clogged more seriously, at this time, the fourth valve 84 may be manually closed or closed by the fourth controller 85, then the liquid level in the second tank 12 drops as the coolant in the second tank 12 is output through the second recycling pipe 62, and when the liquid level detected by the second liquid level meter 81 is lower than the preset value, after the second controller 83 receives an electric signal of the second liquid level meter 81, the second valve 82 is controlled to close, and then the filter 13 in the second tank 12 is cleaned.

After cleaning is complete, the second valve 82 and the fourth valve 84 are opened again.

When the coolant in the first tank 11 almost reaches the bottom after the concrete in the first tank 11 is cleaned, the third valve 74 is opened, so that the reuse pump 2 is easily caused to suck air, the liquid sprayed from the coolant spray head is easily unstable, and the flow rate of the second flow meter 621 is easily reduced. Therefore, before the third valve 74 is opened, the first valve 72 is opened for a certain period of time, or the partition plate 18 is lifted by rotating the adjusting screw 41, so that the first tank 11 and the second tank 12 are communicated, the drained coolant in the first tank 11 is rapidly replenished, and then the third valve 74 is opened.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a spring face grinding machine's coolant liquid circulation system which characterized in that: comprises a collecting box (1), a recycling pump (2) and a cooling component (3), wherein the cooling component (3) is provided with a recycling pipe (17) connected with a liquid outlet of a grinding machine main body (9), the cooling component (3) is provided with a water outlet (35), a partition plate (18) is arranged in the collecting box (1), the collecting box (1) is divided into a first box body (11) and a second box body (12) which are horizontally distributed by the partition plate (18), the water outlet (35) is communicated with the first box body (11) and the second box body (12) through a connecting pipe (5), the bottom of the first box body (11) is provided with a first recycling pipe (61), the bottom of the second box body (12) is provided with a second recycling pipe (62), the joint of the first recycling pipe (61) and the first box body (11) and the joint of the second recycling pipe (62) and the second box body (12) are both provided with a filter screen (13), the end parts, far away from the collecting box (1), of the first recycling pipe (61) and the second recycling pipe (62) are connected with the same converging pipe (63), the converging pipe (63) is connected with the input end of the recycling pump (2), and the output end of the recycling pump (2) is used for being connected with a cooling liquid spray head of the grinding machine main body (9); the first recycling pipe (61) is provided with a first valve (72), the second recycling pipe (62) is provided with a second valve (82), and the joint of the connecting pipe (5) and the water outlet (35) is provided with a main valve (511).

2. The cooling fluid circulation system of the spring face grinding machine according to claim 1, characterized in that: the first recycling pipe (61) is provided with a first flow meter (611), and the second recycling pipe (62) is provided with a second flow meter (621).

3. The cooling fluid circulation system of the spring face grinding machine according to claim 2, characterized in that: the liquid level control device is characterized in that a first liquid level meter (71) is arranged in the first box body (11), the first liquid level meter (71) is electrically connected with a first valve (72) through a first controller (73), the first controller (73) is used for receiving an electric signal of the first liquid level meter (71) when the liquid level of the first liquid level meter (71) is lower than a preset value and controlling the first valve (72) to be closed, a second liquid level meter (81) is arranged in the second box body (12), the second liquid level meter (81) is electrically connected with a second valve (82) through a second controller (83), and the second controller (83) is used for receiving an electric signal of the second liquid level meter (81) when the liquid level of the second liquid level meter (81) is lower than the preset value and controlling the second valve (82) to be closed.

4. The cooling fluid circulation system of the spring face grinding machine according to claim 3, characterized in that: and a third valve (74) is arranged at the joint of the connecting pipe (5) and the first box body (11), and a fourth valve (84) is arranged at the joint of the connecting pipe (5) and the second box body (12).

5. The cooling fluid circulation system of the spring face grinding machine according to claim 4, characterized in that: the third valve (74) is electrically connected with the first flowmeter (611) through a third controller (75), the third controller (75) is used for receiving a flow rate electric signal of the first flowmeter (611) and closing the third valve (74) when the flow rate electric signal is lower than a preset value, the fourth valve (84) is electrically connected with the second flowmeter (621) through a fourth controller (85), and the fourth controller (85) is used for receiving the flow rate electric signal of the second flowmeter (621) and closing the fourth valve (84) when the flow rate electric signal is lower than the preset value.

6. The cooling fluid circulation system of the spring face grinding machine according to claim 1, characterized in that: the separation plate (18) is arranged in the collection box (1) in a sliding mode along the vertical direction, and a driving piece (4) used for driving the separation plate (18) to move up and down is arranged on the collection box (1).

7. The cooling fluid circulation system of the spring face grinding machine according to claim 6, characterized in that: the driving piece (4) comprises an adjusting lead screw (41) and a sliding block (42), a vertical sliding groove (14) is formed in the collecting box (1), the adjusting lead screw (41) is vertically arranged and rotatably mounted on the collecting box (1), the adjusting lead screw (41) is connected with the collecting box (1) in a clamping mode along the vertical direction, the sliding block (42) is connected in the sliding groove (14) in a sliding mode, and the sliding block (42) is arranged on the partition plate (18) and is in threaded connection with the adjusting lead screw (41).

8. The cooling fluid circulation system of the spring face grinding machine according to claim 1, characterized in that: cooling unit (3) are including heat transfer inner tube (31), heat transfer sleeve pipe (32), coolant input tube (33) and coolant output tube (34), the one end and recovery tube (17) of heat transfer inner tube (31) are connected, the other end is connected with outlet (35), heat transfer sleeve pipe (32) cover is established on heat transfer inner tube (31) and heat transfer sleeve pipe (32) both ends all form sealedly with heat transfer inner tube (31) outer wall, the one end and the coolant input tube (33) of heat transfer sleeve pipe (32) are connected and are used for letting in coolant in heat transfer sleeve pipe (32), the other end is connected with coolant output tube (34) and is used for supplying coolant to discharge.

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