CN107598670A - Cooling water washing system - Google Patents

Abstract

The invention belongs to the technical field of machine tool auxiliary devices, in particular to a cooling water flushing system. The cooling water flushing system includes a water tank, a water pump, a machine tool water pipeline, a steady frame water pipeline, a control valve and a flushing device; the water tank is used to hold cooling water; the water pump includes a water inlet and a water outlet, and the water inlet is connected to the water tank through a pipeline; The first end of the water pipeline of the machine tool is connected to the water outlet of the water pump, and the second end is suitable for connecting the machine tool; the first end of the water pipeline of the center frame is connected to the water pipeline of the machine tool; the control valve is located on the water pipeline of the center frame and can control the center frame On-off of the water pipeline; the flushing device is suitable for being fixed on the center frame of the machine tool, connected with the second end of the water pipeline of the center frame, and capable of flushing the rollers of the center frame. This solution can effectively wash away iron filings and sundries, prevent rollers from crushing iron filings and scratching workpieces, and improve the stability of the center frame clamping, thereby reducing the scrap rate, saving production costs, and improving production efficiency.

Description

Cooling water flushing system

technical field

The invention belongs to the technical field of machine tool auxiliary devices, in particular to a cooling water flushing system.

Background technique

The steady rest is an auxiliary device of the machine tool, especially when processing long workpieces, it is used in most cases. When fixing the workpiece, the chuck of the machine tool clamps one end of the workpiece. For shaft workpieces with large lengths, the other end of the workpiece must be tightened with the tailstock of the machine tool. The center rest is located between the chuck and the tailstock. to support. During processing, the chuck drives the workpiece to rotate at a high speed. When the tool cuts the workpiece, it generates a radial force on the workpiece, and the center frame can offset the radial force, reduce the radial runout of the workpiece, improve the stability of the machining, and improve the machining quality. precision.

During processing, with the movement of the processing part, the center frame also reciprocates accordingly. Multiple rollers of the steady rest clamp the workpiece and rotate with the workpiece at high speed. During processing, iron filings splash and often fall into or be involved in the clamping part of the roller and the workpiece. When the roller rotates, the iron filings are crushed, scratching the surface of the workpiece, and affecting the processing stability.

Contents of the invention

In view of this, the embodiment of the present invention provides a cooling water flushing system to solve the problems in the prior art that the rollers crush iron filings and scratch the surface of the workpiece.

In order to achieve the above object, the technical scheme adopted in the present invention is:

Cooling water flushing system, including:

The water tank is used to hold cooling water;

A water pump, including a water inlet and a water outlet, the water inlet is connected to the water tank through a pipeline;

The water pipeline of the machine tool, the first end is connected to the water outlet of the water pump, and the second end is suitable for connecting to the machine tool;

The water pipeline of the center frame, the first end is connected to the water pipeline of the machine tool;

The control valve is located on the water pipeline of the center frame and can control the on-off of the water pipeline of the center frame;

The flushing device is adapted to be fixed on the center frame of the machine tool, connected to the second end of the water pipeline of the center frame, and capable of flushing the rollers of the center frame of the machine tool.

Further, the water pump is suitable for being connected to the PLC of the machine tool;

When the machine tool is running, the PLC generates a first control signal and sends it to the water pump; the water pump receives the first control signal and starts it;

When the machine tool stops, the PLC generates a second control signal and sends it to the water pump; the water pump receives the second control signal and shuts down.

Further, it also includes:

A flushing switch connected to the control valve;

After the flushing switch is triggered to open, it generates a third control signal and sends it to the control valve; the control valve controls the water pipeline of the center frame to open according to the third control signal;

After the flushing switch is triggered off, it generates a fourth control signal and sends it to the control valve; the control valve controls the water pipeline of the center frame to close according to the fourth control signal.

Further, both the flushing switch and the control valve are suitable for being connected to the PLC of the machine tool;

After the flushing switch is triggered to open, it generates a first adjustment signal and sends it to the PLC, so that the PLC generates a fifth control signal according to the first adjustment signal and sends it to the control valve; the control The valve receives the fifth control signal, and controls the water pipeline of the center frame to open;

After the flushing switch is triggered to close, it generates a second adjustment signal and sends it to the PLC, so that the PLC generates a sixth control signal according to the second adjustment signal and sends it to the control valve; the control The valve receives the sixth control signal, and controls the water pipeline of the center frame to close.

Further, the control valve is a solenoid valve.

Further, a manual valve is provided on the water pipeline for the center frame between the control valve and the second end of the water pipeline for the center frame, and the manual valve is in a normally open state.

Further, the flushing device includes:

At least one flushing unit, one of the flushing units corresponds to one of the rollers of the center frame, each of the flushing units is connected to the second end of the water pipeline of the center frame, and can flush the corresponding rollers of the center frame .

Further, each of the flushing units includes:

Cover plate, the first end is suitable for fixing on the center frame of the machine tool, the shape of the second end is adapted to the roller of the center frame; wherein, a cavity is formed between the middle part of the cover plate and the center frame body, the cavity enables cooling water to flow out along the cavity and flush the roller; and

The first end of the water pipe is connected with the cavity, and the second end is connected with the water pipe of the center frame.

Further, it also includes:

A return water pipeline, the first end of which is suitable for connecting to the machine tool, and the second end of which is connected to the water tank;

Wherein, the cooling water in the machine tool water pipeline and the steady frame water pipeline all flows into the return water pipeline after washing the components of the machine tool.

Further, the water tank is provided with an impurity filtering device, and the cooling water in the return water pipeline can be recycled after being filtered by the impurity filtering device.

Owing to having adopted above-mentioned technical scheme, the technical progress that the present invention obtains is:

Under the action of the water pump, the cooling water in the water tank enters the machine tool through the water pipeline of the machine tool to cool the components in the machine tool. The water pipeline of the center frame is diverted from the water pipeline of the machine tool and connected to the flushing device. The cooling water washes the rollers of the center frame along the water pipeline of the center frame to wash away the iron filings and sundries splashed or attached to the workpiece. A control valve is set on the water pipeline of the center frame. When the rollers need to be rinsed, the control valve controls the water pipeline of the center frame to open, and when flushing is not required, the control valve controls the water pipeline of the center frame to close.

The beneficial effect of adopting the above technical solution is that: when the machine tool is running, the water pipeline of the machine tool normally provides cooling water; The iron filings and sundries on the surface are washed away. This solution can effectively wash away iron filings and sundries, prevent rollers from crushing iron filings and scratching workpieces, and improve the stability of the center frame clamping, thereby reducing scrap rate, saving production costs, and improving production efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the schematic diagram of the cooling water flushing system provided by the embodiment of the present invention;

Fig. 2 is the work flowchart of the water pump provided by the embodiment of the present invention;

Fig. 3 is another working flowchart of the water pump provided by the embodiment of the present invention;

Fig. 4 is the control flowchart of the control valve provided by the embodiment of the present invention;

Fig. 5 is another control flowchart of the control valve provided by the embodiment of the present invention;

Fig. 6 is a schematic diagram of a center frame provided by an embodiment of the present invention;

Fig. 7 is a schematic diagram of the working state of the center frame provided by the embodiment of the present invention;

Fig. 8 is a schematic structural diagram of a flushing unit provided by an embodiment of the present invention;

Fig. 9 is a schematic partial cross-sectional view of a flushing unit provided by an embodiment of the present invention.

Explanation of reference signs:

10-water tank, 20-water pump, 30-machine water pipeline, 40-steady frame water pipeline, 50-control valve, 51-manual valve, 60-flush device, 61-flush unit, 611-cover plate, 6111- Cavity, 612-water pipe, 70-return water pipeline, 80-machine tool, 81-steady frame, 811-roller, 90-workpiece.

detailed description

In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

The embodiment of the present invention provides a cooling water flushing system. As shown in FIG. 1 , the cooling water flushing system includes a water tank 10 , a water pump 20 , a machine tool water pipeline 30 , a center frame water pipeline 40 , a control valve 50 and a flushing device 60 . The water tank 10 is used to hold cooling water. The water pump 20 includes a water inlet and a water outlet, and the water inlet is connected to the water tank 10 through a pipeline. The first end of the water pipeline 30 for the machine tool is connected to the water outlet of the water pump 20 , and the second end is suitable for connecting with the machine tool 80 . The first end of the steady frame water pipeline 40 is connected to the machine tool water pipeline 30 . The control valve 50 is located on the water pipeline 40 of the center frame, and can control the on-off of the water pipeline 40 of the center frame. The flushing device 60 is adapted to be fixed on the center frame 81 of the machine tool 80 , connected to the second end of the water pipeline 40 of the center frame, and capable of flushing the rollers 811 of the center frame 81 of the machine tool 80 .

The cooling water in the water tank 10 enters the machine tool 80 through the machine tool water pipeline 30 under the action of the water pump 20 to cool the components in the machine tool 80 . The water pipeline 40 of the center frame is diverted from the water pipeline 30 of the machine tool, and is connected to the flushing device 60. The cooling water washes the rollers 811 of the center frame 81 along the water pipeline 40 of the center frame, and iron filings splashed or attached to the workpiece 90 and Debris rinsed away. Preferably, the machine tool water pipeline 30 and the steady frame water pipeline 40 are pressure-bearing pipes. When the machine tool 80 is in normal operation, it is necessary to use cooling water to cool down the tool. Therefore, the cooling water pipeline is fully utilized, and a branch pipeline is set on the water pipeline 30 of the machine tool as the water pipeline 40 for the center frame, thereby avoiding setting up a separate pipeline for the flushing device 60 , saving installation costs and improving equipment utilization.

The position movement and service time of the center frame 81 will be determined according to the processing procedure. Therefore, a control valve 50 is set on the water pipeline 40 of the center frame. When the roller 811 needs to be washed, the control valve 50 controls the water pipeline 40 of the center frame to open. When flushing is not required, the control valve 50 controls the water pipeline 40 of the center frame to close to save water, and prevent the cooling water from continuously washing the rollers 811 when the center frame 81 is not in place, affecting the line of sight and preventing the center frame 81 from aligning the workpiece 90.

As an example, as shown in FIG. 2 and FIG. 3 , the water pump 20 is adapted to be connected to the PLC of the machine tool 80 . When the machine tool 80 is running, the PLC generates a first control signal and sends it to the water pump 20, and the water pump 20 receives the first control signal and turns on. When the machine tool 80 is stopped, the PLC generates a second control signal and sends it to the water pump 20, and the water pump 20 receives the second control signal and turns off.

When the machine tool 80 is processing the workpiece 90, the friction between the tool and the workpiece 90 produces a severe temperature rise, and cooling water needs to be used to continuously rinse the tool to cool down the tool. Therefore, when the machine tool 80 is running, the water pump 20 is controlled by PLC to start, and when the machine tool 80 is stopped , the water pump 20 is controlled to be closed by PLC. As an example, the start switch of the machine tool 80 is connected to the PLC. When the start switch is triggered to start, a start signal is generated and sent to the PLC, and the PLC generates a first control signal according to the start signal and sends it to the water pump 20, and the water pump 20 receives the first control signal and turns on. When the start switch is triggered to stop, a shutdown signal is generated and sent to the PLC. The PLC generates a second control signal according to the shutdown signal and sends it to the water pump 20. The water pump 20 receives the second control signal and stops.

As an embodiment, the cooling water flushing system further includes a flushing switch connected to the control valve 50 . After the flushing switch is triggered to open, it generates a third control signal and sends it to the control valve 50 , and the control valve 50 receives the third control signal and controls the water pipeline 40 of the center frame to open. After the flushing switch is triggered to close, it generates a fourth control signal and sends it to the control valve 50, and the control valve 50 receives the fourth control signal and controls the water pipeline 40 of the center frame to close.

The control valve 50 can control the on-off of the water pipeline 40 of the center frame. Specifically, the control valve 50 is in a normally closed state, because cooling water is needed when the machine tool 80 is turned on, and the water pipeline 30 of the machine tool is opened accordingly, and the center frame 81 needs to be closed. Used according to the processing procedure, when the center frame 81 started to run, it was necessary to open the center frame water pipeline 40, and then the control valve 50 was opened; after the center frame 81 shut down, the control valve 50 returned to the closed state, and the center frame used The water line 40 is then closed.

In most cases, in the on-site equipment layout, the control valve 50 is located in the non-operating area, and the processing personnel need to bypass or avoid other devices when operating the control valve 50, which is time-consuming and laborious. The operation area, and connect the flushing switch with the control valve 50, and change the state of the control valve 50 through the flushing switch, which is convenient for processing personnel to operate and saves time and effort.

Specifically, as shown in FIG. 4 and FIG. 5 , both the flushing switch and the control valve 50 are suitable for connecting to the PLC of the machine tool 80 . After the flushing switch is triggered to open, it generates a first adjustment signal and sends it to the PLC, so that the PLC generates a fifth control signal according to the first adjustment signal and sends it to the control valve 50, the The control valve 50 receives the fifth control signal, and controls the water pipeline 40 of the center frame to open. After the flushing switch is triggered to close, it generates a second adjustment signal and sends it to the PLC, so that the PLC generates a sixth control signal according to the second adjustment signal and sends it to the control valve 50, the The control valve 50 receives the sixth control signal, and controls the water pipeline 40 of the center frame to close.

According to practical experience, most machine tools are equipped with an operation panel, and the relevant common switches are concentrated on the operation panel. In order to facilitate the operation of the processing personnel, the flushing switch is also installed on the operation panel, which can avoid designing the installation position for the flushing switch. And pipe wiring, save space, improve equipment utilization. According to practical experience, most of the lines in the operation panel are directly connected to the PLC. In order to arrange the lines reasonably and make the lines neat and clear, both the flushing switch and the control valve 50 are connected to the PLC. After the flushing switch is triggered, the state of the control valve 50 is changed by the PLC. It is convenient and quick to use, saving time and effort.

Specifically, the control valve 50 is a solenoid valve. There is a through hole in the solenoid valve, and a valve body is arranged in the through hole. When the power is off, the valve body and the valve seat are pressed tightly, and the through hole is closed; when the power is turned on, the electromagnetic coil generates electromagnetic force to lift the valve body from the valve seat, and the through hole Open. The parts on both sides of the control valve 50 on the water pipeline 40 of the center frame are respectively connected to the two ends of the through hole. Preferably, the control valve 50 is adapted to be connected to a power distribution box of the machine tool 80 , and the power distribution box provides power for the control valve 50 .

Specifically, as shown in FIG. 1 , a manual valve 51 is provided on the pipeline between the control valve 50 and the second end of the water pipeline 40 of the center frame on the water pipeline 40 of the center frame, The manual valve 51 is normally open. Under normal conditions, the manual valve 51 remains open, and the control valve 50 controls the on-off of the water pipeline 40 for the center frame. When an abnormal situation occurs and the control valve 50 or other parts are damaged, the manual valve 51 is closed to cut off the water pipeline 40 of the center frame to prevent continuous spraying of cooling water and affect the normal operation of the whole machine tool 80.

As an embodiment, as shown in FIG. 6 and FIG. 7, the flushing device 60 includes at least one flushing unit 61, one flushing unit 61 corresponds to one roller 811 of the center frame 81, and each flushing unit 61 All are connected to the second end of the water pipeline 40 of the center frame, and can flush the corresponding rollers 811 of the center frame 81 . It can be clearly seen from Fig. 6 and Fig. 7 that the center frame 81 has a plurality of rollers 811. During use, one or more flushing units 61 can be installed according to the amount of iron filings or sundries and with reference to the flushing effect.

Specifically, as shown in FIG. 8 and FIG. 9 , each of the flushing units 61 includes a cover plate 611 and a water pipe 612 . The first end of the cover plate 611 is adapted to be fixed on the center frame 81 of the machine tool 80, and the shape of the second end is adapted to the roller 811 of the center frame 81, wherein the middle part of the cover plate 611 is aligned with the center frame 81 of the machine tool 80. A cavity 6111 is formed between the center frames 81 , and the cavity 6111 enables cooling water to flow out along the cavity 6111 and wash the rollers 811 . The first end of the water pipe 612 is connected to the cavity 6111 , and the second end is connected to the water pipe 40 of the center frame.

Preferably, the contact surface between the shell of the center frame 81 and the cover plate 611 is quadrangular. As can be clearly seen from FIG. 8 and FIG. One side is open, the middle part of the cover plate 611 and the shell of the center frame 81 form a cavity 6111 , and the opening of the cavity 6111 is close to the roller 811 . The cooling water enters the water pipe 612 through the water pipe 40 of the center frame, and then rushes out along the cavity 6111, and impacts with the roller 811, thereby washing away iron filings or sundries. Preferably, a sealing ring is provided between the cover plate 611 and the shell of the center frame 81 to prevent leakage of cooling water.

As an embodiment, as shown in FIG. 1 , the cooling water flushing system further includes a return water pipeline 70 , the first end of which is adapted to be connected to the machine tool 80 , and the second end is connected to the water tank 10 . Wherein, the cooling water in the machine tool water pipeline 30 and the steady frame water pipeline 40 both flows into the return water pipeline 70 after washing the components of the machine tool. The cooling water in the water pipeline 30 of the machine tool cools down the cutting tool, and the cooling water in the water pipeline 40 of the steady frame washes away the iron filings and sundries. The cooling water is led back to the water tank 10 for recycling, which saves water and reduces production costs.

Specifically, the water tank 10 is provided with an impurity filtering device, and the cooling water in the return water pipeline 70 can be recycled after being filtered by the impurity filtering device. Iron filings or sundries remain in the cooling water, and direct recycling of the cooling water in the return line 70 may cause secondary pollution. Therefore, an impurity filtering device is installed in the water tank 10 to filter out the iron filings or sundries before recycling.

When the machine tool is in operation, the water pipeline 30 of the machine tool normally provides cooling water. When the rollers need to be washed, the water pipeline 40 of the center frame is opened through the control valve 50, and part of the cooling water washes the rollers 811 of the center frame 81 to remove the iron filings and iron filings on the surface of the rollers 811. Debris rinsed away. This solution can effectively wash away iron filings and sundries, prevent rollers from crushing iron filings and scratching workpieces, and improve the stability of the center frame clamping, thereby reducing scrap rate, saving production costs, and improving production efficiency.

The above-described embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still carry out the foregoing embodiments Modifications to the technical solutions recorded in the examples, or equivalent replacement of some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should be included in within the protection scope of the present invention.

Claims (10)

1. cooling water washing system, it is characterised in that including：

Water tank, for holding cooling water；

Water pump, including water inlet and delivery port, the water inlet connect the water tank by pipeline；

Lathe water lines, first end connect the delivery port of the water pump, and the second end is adapted to lathe；

Centre frame water lines, first end connect the lathe water lines；

Control valve, in the centre frame water lines, the break-make of the centre frame water lines can be controlled；

Flusher, suitable for being fixed on the centre frame of lathe, it is connected with the centre frame with the second end of water lines, Neng Gouchong Wash the roller of the centre frame of the lathe.

2. cooling water washing system according to claim 1, it is characterised in that：The water pump is adapted to the lathe PLC；

The PLC generates the first control signal and is sent to the water pump when the lathe is run；Described in the water pump receives First control signal is simultaneously opened；

The PLC generates the second control signal and is sent to the water pump when the lathe is shut down；Described in the water pump receives Second control signal is simultaneously closed.

3. cooling water washing system according to claim 1, it is characterised in that also include：Flush switch, with the control Valve is connected；

The flush switch generates the 3rd control signal and is sent to the control valve after the unlatching that is triggered；The control valve The centre frame is controlled to be opened with water lines according to the 3rd control signal；

The flush switch generates the 4th control signal and is sent to the control valve after the closing that is triggered；The control valve The centre frame is controlled to be closed with water lines according to the 4th control signal.

4. cooling water washing system according to claim 3, it is characterised in that：The flush switch and the control valve are equal It is adapted to the PLC of the lathe；

The flush switch generates the first Regulate signal and is sent to the PLC, to cause the PLC after the unlatching that is triggered 5th control signal is generated according to first Regulate signal and is sent to the control valve；The control valve receives the described 5th Control signal, and control the centre frame to be opened with water lines；

The flush switch generates the second Regulate signal and is sent to the PLC, to cause the PLC after the closing that is triggered 6th control signal is generated according to second Regulate signal and is sent to the control valve；The control valve receives the described 6th Control signal, and control the centre frame to be closed with water lines.

5. cooling water washing system according to claim 3, it is characterised in that：The control valve is magnetic valve.

6. cooling water washing system according to claim 5, it is characterised in that：It is located in the centre frame water lines On pipeline between second end of the control valve and the centre frame water lines, provided with hand-operated valve, the hand-operated valve is normal Open state.

7. cooling water washing system according to claim 1, it is characterised in that the flusher includes：

At least one rinsing unit, the roller of the corresponding centre frame of a rinsing unit, each flushing are single Member is connected with the centre frame with the second end of water lines, can rinse the roller of the corresponding centre frame.

8. cooling water washing system according to claim 7, it is characterised in that each rinsing unit includes：

Cover plate, first end are suitable to be fixed on the centre frame of the lathe, the shape at the second end and the roller phase of the centre frame Adaptation；Wherein, cavity is formed between the middle part of the cover plate and the centre frame, the cavity can make cooling water along the chamber Body flows out and rinses the roller；With

Water pipe, first end connect the cavity, and the second end is connected with the centre frame with water lines.

9. cooling water washing system according to claim 1, it is characterised in that also include：

Water return pipeline, first end are adapted to the lathe, and the second end connects the water tank；

Wherein, the cooling water in the lathe water lines and the centre frame water lines is after the part of the lathe is rinsed Flow into the water return pipeline.

10. cooling water washing system according to claim 9, it is characterised in that：Contaminant filter is provided with the water tank to fill Put, the cooling water in the water return pipeline can recycle after device for filtering impurities filtering.