TW201838760A - Central water discharge device of a processing machine in which the cutting fluid continuously pushed by the inertia of the high pressure pump is not sent to the water injection pipe, but is sent through the diversion valve to be transported back to the water tank - Google Patents

Abstract

A central water discharge device of a processing machine is discharged. The processing machine has a water injection pipe. The central water discharge device of the processing machine comprises a water tank for accommodating the cutting fluid, a high pressure pump for extracting and pressurizing the cutting fluid in the water tank, a water supply unit for transporting the cutting fluid to the water injection pipe, and a controller. The water supply unit includes a safety valve connected to the high pressure pump, a diversion valve connected to the safety valve. The diversion valve has a diversion valve inlet connected to the safety valve, and a first diversion valve outlet connected to the water injection pipe, and a second diversion valve outlet connected to the water tank. The controller is configured to control the diversion valve to open the diversion valve inlet and the first diversion valve outlet when the high pressure pump is turned on, so that the cutting fluid can be transported to the water injection pipe. Also, when the high pressure pump is closed, the diversion valve inlet and the second diversion valve outlet are turned on, so that the cutting fluid continuously pushed by the inertia of the high pressure pump is not sent to the water injection pipe, but is sent through the diversion valve to be transported back to the water tank.

Description

Processing machine center water machine

The present invention relates to a center water dispenser, and more particularly to a central water dispenser of a processing machine.

Referring to Figure 1, a central water dispenser 3 of a conventional processing machine 1 is used to machine a workpiece 2 having a shaft seat 11, a turret 12 rotatably coupled to the shaft base 11, and a plurality of turrets 12 a cutter 13 disposed on the turret 12, a plurality of water injection passages 14 extending through the turret 12 and adjacent to the cutters 13, respectively, and a note disposed on the axle seat 11 for inserting one of the water injection passages 14 during processing A water pipe 15, and a control box (not shown) for driving the turret 12 to rotate and move relative to the shaft base 11. The existing center water dispenser 3 includes a water tank 31 for accommodating the cutting fluid 4, a high pressure pump 32 for extracting and pressurizing the cutting fluid 4 in the water tank 31, a high pressure pump 32 connected thereto, and the bet. a water pipe 15 for supplying the cutting fluid 4 from the high pressure pump 32 to the water supply unit 33 of the water injection pipe 15, and a controller 34 electrically connected to the high pressure pump 32, the water supply unit 33 including a high pressure pump connected thereto The valve 32, the water injection pipe 15 and the safety valve 331 of the water tank 31, when the water pressure of the cutting fluid 4 extracted by the high pressure pump 32 and pressurized is too high, the safety valve 331 can discharge part of the cutting fluid 4 The water tank 31 reduces the pressure of the cutting fluid 4.

When the processing machine 1 selects a tool 13 to be processed, the control box controls the turret 12 to be adjacent to the axle block 11 so that the water injection pipe 15 is inserted into the water injection channel 14 adjacent to the selected tool 13, and then the controller 34, the high pressure pump 32 is activated to extract and pressurize the cutting fluid from the water tank 31, and then the extracted and pressurized cutting fluid 4 is sent to the water injection pipe 15 via the water supply unit 33, and finally the water injection pipe is used. The inserted water injection passage 14 is output to the cutter 13 and the workpiece 2 for cooling the cutter 13 and the workpiece 2, and the chips generated during the machining are carried away from the surface of the workpiece 2.

Referring to FIG. 2, when the processing machine 1 stops processing and wants to switch the next machining tool 13, the control box controls the turret 12 away from the axle seat 11 to disengage the water injection pipe 15 from the water injection passage 14, and then the control The high-pressure pump 32 is turned off, so that the existing center water dispenser 3 stops conveying the cutting fluid 4 to the water injection pipe 15, however, when the high-pressure pump 32 is closed, the water supply unit 33 is still filled with the cutting fluid 4, and The high pressure pump 32 will still operate for a period of time due to inertia, so that the cutting fluid 4 in the water supply unit 33 will still be pushed in the direction of the water injection pipe 15, at which time, since the water injection pipe 15 has been separated from the water injection pipe 14 The cutting fluid 4 pushed to the end of the water injection pipe 15 will be splashed from the opening of the water injection pipe 15 to the surroundings, causing some oil scraping and adhering to the processing machine to be flushed to the water injection pipes 14, and further The water injection channel 14 is blocked.

Accordingly, it is an object of the present invention to provide a central water dispenser for a processing machine that overcomes the shortcomings of the prior art.

Thus, the center water discharge machine of the processing machine of the present invention has a shaft seat, a turret rotatably coupled to the shaft seat, a plurality of water injection passages penetrating the turret, and a machining chamber disposed on the shaft seat and processed When the water injection pipe is inserted into one of the water injection channels, the central water discharge machine of the processing machine comprises a water tank, a high pressure pump, a water supply unit and a controller.

The water tank is used to house cutting fluid. The high pressure pump is connected to the water tank and is used to extract and pressurize the cutting fluid in the water tank. The water supply unit is coupled to the high pressure pump and is configured to deliver cutting fluid from the high pressure pump to the water injection pipe, the water supply unit includes a safety valve connected to the high pressure pump, and a steering valve connected to the safety valve. The safety valve is changeable between a normal pressure state and a high pressure state, and has a safety valve inlet connected to the high pressure pump, a first safety valve outlet connected to the steering valve, and a second safety connected to the water tank a valve outlet, in the normal pressure state, the safety valve inlet is open to the first safety valve outlet, and the safety valve inlet does not conduct the second safety valve outlet, and in the high pressure state, the safety valve inlet is electrically connected to the second a safety valve outlet, the steering valve being switchable between a water supply state and a non-water supply state, and having a steering valve inlet connected to the first safety valve outlet, a first steering valve outlet for communicating the water injection pipe, and a second steering valve outlet communicating with the water tank, the steering valve inlet is open to the first steering valve outlet, and the steering valve inlet is not conducting the second steering valve outlet, the non-water supply When the state of the steering valve inlet nonconductive outlet valve of the first steering, the steering valve inlet and the second conductive steering valve outlet. The controller is electrically connected to the high pressure pump and the steering valve for controlling the steering valve to switch to the water supply state when the high pressure pump is turned on, and to switch to the non-water supply state when the high pressure pump is turned off.

The effect of the present invention is that the steering valve can be switched between the water supply state and the non-water supply state, and the controller drives the steering valve to switch to the non-water supply state when the high pressure pump is closed, therefore, when the high pressure pump When the pump is closed but continues to operate due to inertia, the cutting fluid that is continuously pushed toward the water injection pipe flows back into the water tank through the steering valve inlet and the second steering valve outlet, and is not sent to the water injection pipe. The processing chips or oil stains outside the water injection channel are not sprayed into the water injection channels without being affected by the cutting fluid, thereby keeping the water injection channels clean and unobstructed.

Referring to Fig. 3, an embodiment of a central water dispenser 5 of a processing machine of the present invention is suitable for processing a workpiece 7 and has a shaft seat 61, a turret 62 rotatably coupled to the shaft base 61, and a plurality of settings a cutter 63 of the turret 62, a plurality of water injection passages 64 extending through the turret 62 and adjacent to the cutters 63, and a water injection pipe provided in the shaft seat 61 for inserting one of the water injection passages 64 during processing. 65. A control box (not shown) for driving the turret 62 to rotate and move relative to the shaft base 61, and a water tank 66 for collecting the used cutting fluid 8, and the center of the processing machine is discharged The machine 5 includes a water tank 51, a high pressure pump 52, a water supply unit 53, a controller 54, a filter 55, and a return water line 56.

The water tank 51 is for accommodating the cutting fluid 8.

The high pressure pump 52 is connected to the water tank 51 and is used to extract and pressurize the cutting fluid 8 in the water tank 51.

The water supply unit 53 is connected to the high pressure pump 52 and is used to transport the cutting fluid 8 from the high pressure pump 52 to the water injection pipe 65. The water supply unit 53 includes a safety valve 531 and a communication connected to the high pressure pump 52. a steering valve 532 of the safety valve 531, a water supply line 533 between the steering valve 532 and the water injection pipe 65 for communicating the steering valve 532 and the water injection pipe 65, and a safety valve 531 and the steering A hydraulic pressure display 534 between the valves 532 and used to display the cutting fluid 8.

The safety valve 531 has a safety valve inlet 535 that communicates with the high pressure pump 52, a first safety valve outlet 536 that communicates with the steering valve 532 via the pressure display 534, and a second safety valve outlet 537 that communicates with the water tank 51. The safety valve 531 can be switched between a normal pressure state and a high pressure state according to the water pressure of the cutting fluid 8 extracted by the high pressure pump 52. When the water pressure of the cutting fluid 8 is lower than a preset pressure, the The safety valve 531 is in the normal pressure state, the safety valve inlet 535 is open to the first safety valve outlet 536, and the safety valve inlet 535 is not electrically connected to the second safety valve outlet 537, when the water pressure of the cutting fluid 8 is higher than a predetermined When the pressure is set, the safety valve 531 is in the high pressure state, and the safety valve inlet 535 is opened to the second safety valve outlet 537.

The steering valve 532 has a steering valve inlet 538 that communicates with the first safety valve outlet 536 via the pressure display 534, a first steering valve outlet 539 for communicating the water injection pipe 65, and a second communication with the water tank 51. The steering valve outlet 540 can be switched between a water supply state and a non-water supply state according to the activation and shutdown of the high pressure pump 52. When the high pressure pump 52 is activated, the steering valve 532 is in the water supply state. The steering valve inlet 538 opens the first steering valve outlet 539, and the steering valve inlet 538 does not conduct the second steering valve outlet 540. When the high pressure pump 52 is closed, the steering valve 532 is in the non-water supply state. The steering valve inlet 538 does not conduct the first steering valve outlet 539 and the steering valve inlet 538 opens the second steering valve outlet 540.

The controller 54 is electrically connected to the high pressure pump 52 and the steering valve 532 for controlling the steering valve 532 to switch to the water supply state when the high pressure pump 52 is turned on, and to switch to the non-high voltage pump 52 when the high pressure pump 52 is turned off. Water supply status.

The filter 55 communicates with the water tank 51 and is used to filter the cutting fluid 8.

The return water line 56 connects the water tank 66 and the filter 55, and is used to recover the cutting fluid 8 in the water tank 66.

When the processing machine 6 selects a tool 63 to be processed, the control box controls the turret 62 to approach the axle seat 61, causing the water injection pipe 65 to be inserted into the water injection passage 64 adjacent to the selected tool 63, and then the controller The high pressure pump 52 is activated to drive the steering valve 532 to the water supply state. After the high pressure pump 52 is activated, the cutting fluid 8 is continuously withdrawn from the water tank 51 and pressurized, and is extracted and pressurized. The cutting fluid 8 is sent to the water supply unit 53 and flows through the safety valve 531 and the pressure display 534, and then through the steering valve inlet 538 and the first steering valve outlet 539 to the water supply line 533 and the The water injection pipe 65 is further outputted to the cutter 63 and the workpiece 7 by the water injection passage 64 inserted by the water injection pipe 65 for cooling the cutter 63 and the workpiece 7, and the chips generated during machining can be processed from the workpiece 7. The surface is separated and flows into the water tank 66 together. Finally, the cutting fluid 8 collected in the water tank 66 together with the debris and oil is sent to the filter 55 for filtration through the return water pipe 56, and the filtered cutting fluid is filtered. 8 will flow back to the water tank 51 for transport again.

When the cutting fluid 8 flows through the safety valve 531, if the water pressure is lower than the preset pressure, the safety valve 531 will maintain the normal pressure state, and the cutting fluid 8 flows from the safety valve inlet 535 into the safety valve 531. Thereafter, the first safety valve outlet 536 flows toward the steering valve 532. If the water pressure is higher than the preset pressure, the safety valve 531 is switched to the high pressure state, so that a part of the safety valve inlet 535 enters the safety. The cutting fluid 8 of the valve 531 flows back to the water tank 51 from the outlet of the second safety valve 537 until the water pressure of the cutting fluid 8 in the water supply unit 53 is less than the preset pressure, and the second safety valve outlet 537 will not conduct. The safety valve inlet 535 returns the safety valve 531 to a normal pressure state, thereby preventing the excessively high pressure cutting fluid 8 from being delivered to the cutter 63 and the workpiece 7, thereby affecting the machining process, and the pressure display 534 is utilized. The user can observe whether the pressure of the cutting fluid passing through the first safety valve outlet 536 is indeed lower than the preset pressure.

Referring to FIG. 4, when the processing machine 6 stops processing and wants to switch the next machining tool 63, the control box controls the turret 62 away from the axle seat 61 to disengage the water injection pipe 65 from the water injection passage 64, and then the control The high pressure pump 52 is turned off and the steering valve 532 is switched to a non-water supply state. At this time, the high pressure pump 52 still operates for a period of time due to inertia, so that the cutting fluid 8 in the water supply unit 53 still faces The direction of the water injection pipe 65 is pushed, and when the pushed cutting fluid passes through the safety valve 531 and the pressure display 534 to the steering valve inlet 538, since the steering valve 532 has been switched to the non-water supply state, the steering valve The inlet 538 only turns on the second steering valve outlet 540, so that the cutting fluid 8 in the water supply unit 53 is pushed back to the water tank 51 by the second steering valve outlet 540 without being ejected from the end of the water injection pipe 65. Thus, the cleaning of the water injection channels 64 can be maintained.

When the cutting fluid 8 in the water supply unit 53 is pushed to the safety valve 531, the safety valve 531 is also switched according to the water pressure of the cutting fluid 8, so that the steering valve 532 can be protected from the cutting fluid 8 The pressure is too high and damaged.

It is worth mentioning that the center water dispenser 5 of the processing machine can be separately sold to a general manufacturing processing machine factory or a general processing factory, and assembled by the factory personnel to a general processing machine. In addition, the water supply line 533 and The return water line 56 can also be purchased by the factory personnel and assembled on the steering valve 532 and the filter 55.

In summary, the central water dispenser 5 of the processing machine of the present invention can be switched between the water supply state and the non-water supply state by the steering valve 532, and the controller 54 drives the steering valve when the high pressure pump 52 is closed. 532 switches to the non-water supply state, so when the turret 62 is away from the axle seat 61 and the water injection pipe 65 is disengaged from the water injection passage 64, the controller 54 turns off the high pressure pump 52 and drives the steering valve 532 to switch. The non-water supply state is set such that the cutting fluid 8 continuously pushed by the inertia of the high pressure pump 52 flows back into the water tank 51 via the steering valve inlet 538 and the second steering valve outlet 540 without being delivered to the The water injection pipe 65 allows the machining chips or oil stains outside the water injection passage 64 to be injected into the water injection passages 64 without being affected by the cutting fluid 8, thereby keeping the water injection passages 64 clean and unobstructed, so that the present invention can be achieved. purpose.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

5‧‧‧Processing machine center water dispenser

51‧‧‧Water tank

52‧‧‧High pressure pump

53‧‧‧Water supply unit

531‧‧‧Safety valve

532‧‧‧Steering valve

533‧‧‧Water supply pipeline

534‧‧‧ Pressure display

535‧‧‧Safety valve inlet

536‧‧‧First safety valve outlet

537‧‧‧Second safety valve exit

538‧‧‧Steering valve inlet

539‧‧‧First steering valve inlet

540‧‧‧Second steering valve inlet

54‧‧‧ Controller

55‧‧‧Filter

56‧‧‧Water return pipeline

6‧‧‧Processing machine

61‧‧‧ shaft seat

62‧‧‧Knife Tower

63‧‧‧Tools

64‧‧‧Water injection channel

65‧‧‧Water injection pipe

66‧‧‧Sink

7‧‧‧Workpiece

8‧‧‧Cutting fluid

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a schematic view of a processing machine and a central water dispenser of an existing processing machine, illustrating a water injection tube inserted into one Figure 2 is a schematic view of the processing machine and the central water dispenser of the prior processing machine, illustrating a water injection pipe from the water injection channel; Figure 3 is an embodiment of the central water dispenser of the processing machine of the present invention and a processing machine A schematic view showing a water injection pipe inserted into one of the water injection channels; and FIG. 4 is a schematic view of the embodiment and the processing machine, illustrating that the water injection pipe is separated from the water injection channel.

Claims (5)

A central water dispenser of a processing machine, the processing machine having a shaft seat, a turret rotatably coupled to the shaft seat, a plurality of water injection passages penetrating the turret, and a shaft seat disposed on the shaft seat and used for processing a water injection pipe inserted into one of the water injection channels, the central water discharge machine of the processing machine comprises: a water tank for accommodating the cutting fluid; a high pressure pump connected to the water tank, and used for extracting and pressurizing the cutting fluid in the water tank a water supply unit connected to the high pressure pump and configured to deliver cutting fluid from the high pressure pump to the water injection pipe, the water supply unit including a safety valve connected to the high pressure pump, and a steering connected to the safety valve a valve that is changeable between a normal pressure state and a high pressure state, and has a safety valve inlet that communicates with the high pressure pump, a first safety valve outlet that communicates with the steering valve, and a first communication valve that communicates with the water tank a safety valve outlet, wherein the safety valve inlet opens the first safety valve outlet, and the safety valve inlet does not conduct the second safety valve outlet, and the safety valve inlet is electrically connected to the high pressure state First a safety valve outlet, the steering valve being switchable between a water supply state and a non-water supply state, and having a steering valve inlet connected to the first safety valve outlet, a first steering valve outlet for communicating the water injection pipe, and a second steering valve outlet communicating with the water tank, the steering valve inlet is open to the first steering valve outlet, and the steering valve inlet is not conducting the second steering valve outlet, in the non-water supply state, The steering valve inlet does not conduct the first steering valve outlet, and the steering valve inlet opens the second steering valve outlet; and a controller electrically connects the high pressure pump and the steering valve for controlling the steering valve at the high pressure The pump is switched to the water supply state when the pump is turned on, and is switched to the non-water supply state when the high pressure pump is turned off. The central water dispenser of the processing machine of claim 1, wherein the water supply unit further comprises a water supply line between the steering valve and the water injection pipe for communicating the first steering valve outlet and the water injection pipe. The center water dispenser of the processing machine of claim 1 or 2, further comprising a filter for communicating the water tank and for filtering the cutting fluid. The central water dispenser of the processing machine of claim 3, further comprising a return water line connecting the processing machine and the filter for recovering the cutting fluid used by the processing machine. The central water dispenser of the processing machine of claim 4, wherein the water supply unit further comprises a pressure display between the safety valve and the steering valve for displaying hydraulic pressure of the cutting fluid.