CN211540418U - Flushing device for quick tool changing of processing machine - Google Patents

Abstract

The utility model discloses a washing unit for quick tool changing of processing machine, include: the washing liquid spraying device comprises a water pump, a first one-way valve, a second one-way valve, a first controllable valve, a second controllable valve and a spraying nozzle, wherein the water pump and the first controllable valve are closed simultaneously, and the first one-way valve is automatically closed to enable washing liquid in a pipeline between the first controllable valve and the first one-way valve to be locked. Two parallel pipelines consisting of a controllable valve and a one-way valve are communicated with the jet nozzle, so that flushing fluid in the pipeline connected with the water pump can be locked immediately when the water pump stops working, and the machining spindle is ensured to be soaked by the flushing fluid at the first time of cutting; the air current sprays the residue in the spray nozzle, so that the spray nozzle cannot have the condition that dripping is discontinuous, and locked flushing liquid in a pipeline connected with the water pump cannot be influenced.

Description

Flushing device for quick tool changing of processing machine

Technical Field

The utility model relates to a digit control machine tool processing technology field, concretely relates to a washing unit for quick tool changing of processing machine.

Background

Nowadays, multi-spindle machining is a trend in the field of batch machining, and the automatic tool changing technology is influenced by a space structure, so that at present, a plurality of problems exist, and especially, the parallel machining spindle layout brings about limitation on various aspects such as starting and stopping of a washing liquid (namely cutting liquid), starting and stopping of a machining spindle, a machining spindle advancing path and the like during tool changing.

From the perspective of a machine tool user, the machine tool is expected to have the shortest possible shutdown auxiliary time, particularly, a machining spindle needs to replace a tool bit frequently, the user generally pays attention to the time required by tool setting (an old tool bit is replaced by a new tool bit), rotating speed to rotating speed (the machining spindle is recovered to the machining speed after being stopped at a high-speed machining speed), and cutting chip to cutting chip (the last cutting chip of a previous piece of material is replaced by the next piece of material), and ideal cutting chip time needs to deal with the time required by a tool changing mechanism, the advancing path of the machining spindle, starting and stopping of a flushing fluid and other problems.

At present the machine tool of mainstream still generally adopts the flush fluid to carry out work cooling, and the flush fluid is held in a box container usually to set up the water pump on the box, the water pump passes through the pipeline and spouts the flush fluid to the machine tool machining point through special nozzle and go out, cools off, lubricates and dashes the bits to machined part and processing cutter.

When the machine tool stops machining, the water pump stops working and the spraying of the washing liquid also stops. However, one end of the liquid in the pipeline continuously flows out of the linear shape in the nozzle and then drips until the flushing liquid in the pipeline at one end flows out completely; and the flushing liquid side in the pipeline at the other end flows back to the cooling box body from the pump body of the water pump.

Next time the lathe begins to add man-hour, the water pump starts, is full of the flush fluid in the pipeline earlier, and then the flush fluid sprays and goes out from one end pipeline nozzle, spouts to the machined part and the epaxial cutter of processing.

Can learn from above process, the during operation of water pump, the water pump starts the flush fluid from the nozzle blowout, because the return flow of both ends is followed respectively to the flush fluid in the last pipeline, and the flush fluid is followed the nozzle blowout, has certain time lag, even the processing main shaft begins processing sometimes, and the flush fluid has not sprayed out yet, influences normal processing. On the other hand, when the water pump stopped, the one end of spraying continued the linear or bit form and flowed out the flush fluid, not only influenced the change of machined part, more disturbed the smooth going on of processing main shaft change tool bit, and the line or bit form flush fluid flowed or splashed on the handle of a knife easily.

In particular, according to the patent application publication No. CN 109465664 a by the present applicant, in the parallel arrangement of the multiple spindles, the machining spindle needs to be moved laterally during tool changing, and lines or drops of cooling liquid flow onto the tool holder mounting surface of the manipulator during the lateral movement, which may affect the tool changing.

Patent publication No. CN 109262362 a discloses "a machining center coolant emergency stop device" which prevents an end line or a drip from being ejected by stopping a cutting fluid (flushing fluid) with a first check valve and breaking a residual pressure with air pressure. In practical situations, however, the check valve is added in the cutting fluid pipeline, so that on one hand, due to the existence of fine cutting in the cutting fluid, the check valve is easy to block at the position of the check valve, and the check valve fails; on the other hand, when the cutting fluid works, a 'water hammer' phenomenon (in a pressure pipeline, the flow speed of water is suddenly changed due to some external reasons (such as sudden closing of a valve and sudden stopping of a water pump unit) to cause water hammer, and the hydraulic phenomenon is called water hammer or water hammer.) exists. And a larger one-way threshold value can have certain resistance to the cutting fluid in the pipeline, thereby influencing the normal injection pressure. In addition, when the compressed air destroys the residual pressure, the main shaft generally stops rotating, and the cooling liquid is sprayed to the tool holder or the tool of the main shaft, wherein on one hand, the cutting chips in the cooling liquid may remain on the tool holder or the tool to interfere with normal tool changing; on the other hand, the cooling liquid remains on the tool holder or the tool and is dripped continuously, and particularly when the tool holder on the main shaft is replaced into the tool magazine, the remaining cooling liquid enters the tool magazine and is dripped continuously to pollute the tool magazine.

Therefore, the problem that how to effectively avoid the jet lag when the cutting fluid is started, the line or drip delay when the cutting fluid is stopped and the problem that the cooling fluid jet is remained on the cutter handle or the cutter when the residual pressure is damaged are needed to be solved by efficient cutter changing.

SUMMERY OF THE UTILITY MODEL

The utility model provides a washing unit for quick tool changing of processing machine to solve above-mentioned problem.

The utility model provides a pair of a washing unit for quick tool changing of processing machine, include: the washing machine comprises a water pump, a first one-way valve, a second one-way valve, a first controllable valve, a second controllable valve and a spraying nozzle, wherein the water pump is used for sucking washing liquid; the water pump and the first controllable valve are closed simultaneously, and the first one-way valve is automatically closed, so that flushing liquid in a pipeline between the first controllable valve and the first one-way valve is locked.

Preferably, an overflow valve is arranged at the outlet of the water pump.

Preferably, the opening mode of the second controllable valve is pulse-type opening and closing, so that the air flow of the external compressed air blown to the spray nozzle through the second controllable valve and the second one-way valve is pulse-type air pressure.

Preferably, the second controllable valve is a two-way electrically controllable valve.

Preferably, the first one-way valve is a plectrum one-way valve, and the first controllable valve is an angle seat valve.

Preferably, the first controllable valve and the second controllable valve are integrated in a three-position five-way electrically controlled valve.

According to the technical scheme, the two parallel pipelines composed of the controllable valve and the one-way valve are communicated with the spray nozzle, so that the flushing fluid in the pipeline (also called as a pipeline) connected with the water pump can be locked immediately when the water pump stops working, the spraying nozzle can be rapidly sprayed by the flushing fluid locked in the pipeline when the water pump is started next time, and the machining spindle is ensured to be soaked by the flushing fluid at the first time of cutting; meanwhile, after the water pump is stopped, the pipeline connected with external compressed air is released and opened, and the air flow sprays residues in the spray nozzle, so that the condition that dripping is discontinuous and incomplete can not occur in the spray nozzle, and locked flushing liquid in the pipeline connected with the water pump can not be influenced. Particularly, when the second controllable valve adopts pulse type opening and closing control, pulse type air pressure can be formed in the pipeline to clean the interior of the spray nozzle more efficiently and cleanly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a flushing device according to embodiment 1 of the present invention;

fig. 2 is a schematic diagram of a flow path of a quick tool changing method when the processor is suitable for a flushing device in embodiment 2 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example 1:

the embodiment of the utility model provides a washing unit for processing machine tool changing mechanism, as shown in figure 1, include: the water pump comprises a water pump 2, a first one-way valve 3, a second one-way valve 10, a first controllable valve 6, a second controllable valve 8 and a spray nozzle 9, wherein the first one-way valve 3 adopts a plectrum one-way valve, and the plectrum one-way valve has strict limitation on the installation mode and can be suitable for vertical installation at the outlet of the water pump or horizontal installation under local conditions. The first controllable valve 6 adopts an angle seat valve, the second controllable valve 8 adopts a two-way electric control valve, a liquid storage tank 1 is required to be arranged in practical production application, flushing liquid is stored in the liquid storage tank 1, the flushing liquid can be used as cooling liquid during processing, cleaning liquid for processing scraps and lubricating liquid for a tool bit, generally, a water pump 2 is arranged in the liquid storage tank 1 and is used for sucking the flushing liquid, the water pump 2, the first one-way valve 3, the first controllable valve 6 and an injection nozzle 9 are sequentially connected through a pipeline, and external compressed air can be communicated with an inlet of the injection nozzle 9 through the second controllable valve 8 and the second one-way valve 10; the water pump 2 and the first controllable valve 6 are closed simultaneously, the first one-way valve 3 is automatically closed, so that the flushing liquid in the pipeline 5 between the first controllable valve 6 and the first one-way valve 3 is locked, namely the flowability of the flushing liquid is frozen (non-refrigeration freezing) and cannot flow, and the flushing liquid basically fills the pipeline 5; after the flushing liquid in the pipe 5 between the first controllable valve 6 and the first one-way valve 3 is locked, the second controllable valve 8 is opened to allow the external compressed air to pass through the second controllable valve 8 and the second one-way valve 10 to remove the residues in the spray nozzle 9, including residual flushing liquid or contaminated waste chips, etc.

Because the water pump stops the back, the flush fluid in the pipeline 5 is locked, can not the reflux to the water pump, also can not leave the jet nozzle forward for be in a state of being full of the flush fluid in the pipeline, in case start the water pump once more and release the pipeline, the flush fluid in the pipeline can be rushed to the jet nozzle the very first time, thereby make the processing position of processing main shaft obtain the flush fluid in the shortest time and soak. Because the interior of the pipeline is in a state of being full of flushing liquid, the pressure of the water pump at the moment of opening acts on the flushing liquid in the pipeline, the instant pressure of the water pump is further slowly released, and the water hammer phenomenon is effectively relieved. The setting of another way atmospheric pressure pipeline can blow off the raffinate of spraying nozzle on the one hand, and on the other hand also can prevent the dropping liquid in first controllable valve exit, and atmospheric pressure is at the entrance effect of spraying nozzle, and partial atmospheric pressure can be irritated to first controllable valve export backward to no dropping liquid phenomenon in first controllable valve exit has been guaranteed.

In order to thoroughly eliminate the water hammer phenomenon, the outlet of the water pump 2 in the embodiment is provided with the overflow valve 4, and the other end of the overflow valve 4 is communicated to the liquid storage tank, so that once the water pressure in the pipeline is too high, flushing liquid can flow back to the liquid storage tank 1 through the overflow valve 4. The overflow valve at the water pump side is mainly used for stabilizing pressure, and is particularly used for treating the water hammer phenomenon generated when the water pump is started and stopped.

In order to ensure that the spray nozzle does not have a state of drip of flushing liquid, the second controllable valve is opened in a pulse mode, so that the air flow blown to the spray nozzle by the external compressed air through the second controllable valve and the second one-way valve is in a pulse air pressure. The one-way valve on one side of the two-way electric control valve is mainly used for preventing flushing liquid from reversely flowing into the valve body of the two-way electric control valve. If adopt and blow in succession, then be unfavorable for the incomplete night and collect, and utility model people is through the experiment discovery, adopt pulsed atmospheric pressure to make the raffinate blow the back through atmospheric pressure, can collect the small drop of water of formation fast at a certain point in the twinkling of an eye that atmospheric pressure is interrupted, the atmospheric pressure that restarts will once only blow away this little drop of water that collects again, the injection nozzle will become very clean in the twinkling of an eye, and this kind of pulsed control mode also can furthest's energy saving consumption in addition.

In the embodiment, one end of the outlet of the flushing liquid pump is provided with a plectrum type one-way valve which is used for limiting flushing liquid at one end in a pipeline to flow back to the liquid storage tank when the water pump is closed and stopped; one end of the injection nozzle is provided with an angle seat valve, one end of the injection nozzle controlled by the angle seat valve is also connected with a two-way electric control valve, external compressed air can be introduced, the angle seat valve is used for closing injection when the water pump stops, the two-way electric control valve is used for connecting compressed air to destroy residual pressure of flushing liquid in the injection nozzle, and the compressed air is injected in a pulse mode.

It is understood that the first controllable valve is a two-way electric control valve, and the second controllable valve is an angle seat valve in this embodiment, which is the option for achieving the best control effect, while in other embodiments, the control valves may be selected according to different needs, for example, the first controllable valve and the second controllable valve are integrated into a three-position five-way electric control valve, and still achieve the effect of controlling the pipelines separately.

Example 2:

the present embodiment provides a method for quickly changing a tool for a processing machine, which can be implemented based on the flushing unit in embodiment 1, and other key components in the processing machine, such as the driving and structure of the processing spindle and the driving and structure of the tool magazine, can be known in the prior art, and therefore, the description thereof is omitted.

The quick tool changing method for the processing machine provided by the embodiment comprises 4 key steps.

1. And a tool changing preparation step.

The previous machining process in the step is finished, and the tool bit needs to be replaced so as to perform machining treatment of the next process on the machined piece. Can control processing main shaft stall in the processing method in the past, but the utility model discloses a processing main shaft still can be controlled to continue to rotate after the processing is accomplished in this step, but the control water pump is closed, first controllable valve is closed, first check valve is automatic closing then, water pump and first controllable valve are closed simultaneously, close the same time under the ideal condition here and close, but can allow the error and be the unavoidable error among the actual operation, water pump and first controllable valve close simultaneously and just can furthest guarantee to be in the state that is full of the flush fluid in pipeline 5, the flush fluid is locked in pipeline 5, also can guarantee to leave the raffinate as few as possible in the pipeline. The second controllable valve is in a normally closed state. The continuous rotation of the processing main shaft can ensure that residual liquid on the tool bit of the processing main shaft is thrown away, and the pollution is reduced.

2. And (5) blowing and cleaning.

After the flush fluid in the pipeline 5 was locked, the main task of this step was exactly the residue in the clearance jet nozzle to prevent that the jet nozzle from appearing the dropping liquid, the dropping liquid influences processing on the tool bit when causing the tool changing, also can be in the same direction as taking the probably remaining residue on the clearance tool bit simultaneously, kill two birds with one stone. After the water pump and the first controllable valve are closed, the step starts to control the second controllable valve to open so that the external compressed air can clear away residues in the spray nozzle through the second controllable valve and the second one-way valve, and the main shaft keeps rotating so that the residues sprayed on the machining main shaft are thrown off.

In order to further ensure the blowing and removing effect on the spray nozzle, the opening mode of the second controllable valve is controlled to be pulse-type opening and closing, so that the air flow blown to the spray nozzle by external compressed air through the second controllable valve and the second one-way valve is pulse-type air pressure. The pulse frequency and the period of the pulse blowing can be programmed or parameterized by the system.

The air blowing time of the spray nozzle can be set according to actual requirements, and the corresponding air blowing set time is set in the program. As a more efficient embodiment, the moving process of the machining spindle can be performed simultaneously when the air blowing cleaning step is performed, and in this process, both the air blowing step and the step of raising and moving the machining spindle to the set safe height are performed.

3. And replacing the cutter head.

After the spray nozzle is cleaned, the machining spindle is controlled to stop rotating and move to a set tool changing position in the step, the tool changing position refers to a position where the machining spindle and the tool changing manipulator are connected, and is an area position including a position where an old tool bit is located on the tool changing manipulator and a position where a new tool bit is located, the tool changing manipulator takes down the old tool bit on the machining spindle to be replaced with the new tool bit and returns to a tool magazine, the machining spindle returns to the machining position, the machining position is also an area position, and a movable workbench can enter the machining position to be matched with the machining spindle to perform machining during machining. The tool changing manipulator can be general tool changing manipulator, changes the new tool bit after taking off the tool bit on the processing main shaft, and the tool magazine structure that discloses in the patent document with publication number CN 109465664A and the tool changing manipulator that involves can use the embodiment of the utility model provides an in.

The embodiment of the utility model provides an in order to further reduce the tool changing time, set up best processing main shaft and removed the route scheme, control second controllable valve opens, the clearance of beginning blowing, the simultaneous processing main shaft keeps rotating and removes to the tool changing position, in the processing main shaft to tool changing position removal in-process, the tool changing manipulator is removed to the tool changing position by the new tool bit of tool magazine delivery, this obviously is the step of blowing the clearance step and going on simultaneously with the tool bit step of changing, efficiency is for promoting greatly. The moving mode of the processing spindle is improved, the safety and the reliability of tool changing are guaranteed, the processing spindle moves to the tool changing position in a mode that the processing spindle rises to a set safety height firstly and then moves downwards, and before the processing spindle moves downwards, the second controllable valve is controlled to be normally closed to finish the air blowing cleaning step and control the processing spindle to stop rotating. In any case, when the machining spindle descends from the safety height, the blowing and the rotation of the spindle must be stopped to ensure safety.

In the case that a controllable isolating door is arranged between the tool changing position and the tool magazine, the isolating door is opened after the second controllable valve is controlled to be normally closed to complete the air blowing cleaning step, and the tool changing manipulator carries a new tool bit to the tool changing position, so that the tool bit in the tool magazine and the tool bit on the tool changing manipulator can be guaranteed not to be influenced by air blowing or liquid spraying; and after the tool changing manipulator carries the old tool bit back to the tool magazine and the isolation door is closed, the equipment starts the quick liquid spraying step. The isolation of the tool magazine is completely guaranteed, and the influence of pollution sources of a machining area on the tool magazine is effectively prevented.

After the machining main shaft is controlled to stop rotating, the tool changing manipulator carries a new tool bit to a tool changing position below the machining main shaft through the tool magazine, the machining main shaft descends from a preset safety height to enable an empty tool holder on the tool changing manipulator to clamp an old tool bit of the machining main shaft, then the machining main shaft moves to the new tool bit position of the tool changing manipulator in a jumping mode according to a set parabolic track to enable the new tool bit to be installed on the machining main shaft, the machining main shaft moves to the safety height, and the tool changing manipulator returns to the tool magazine. The parabolic track jumping movement of the processing spindle is similar to the frog-leap movement, and therefore is also called frog-leap movement, and the driving speed ratio of the transverse movement and the vertical movement of the processing spindle is controlled simultaneously, so that the actual running track is obtained to be a parabolic track, as shown in fig. 2.

In actual operation, the air blowing cleaning step and the tool bit replacing step are close processes which are crossed and matched in time sequence, when the air blowing cleaning step and the tool bit replacing step are executed, the second controllable valve is controlled to be opened, meanwhile, the machining spindle keeps rotating and moves to a preset safe height, when the opening time of the second controllable valve reaches a set time, the second controllable valve is controlled to be normally closed, the air blowing cleaning step is completed, the machining spindle is controlled to stop rotating, and the tool changing manipulator carries a new tool bit to a tool changing position below the machining spindle through the tool magazine and completes the tool bit replacing step. When the blowing cleaning step is carried out, the tool changing manipulator in the tool magazine is already carrying out the preparation process of a new tool bit, and when the blowing cleaning is finished, the tool changing manipulator can be immediately moved to a tool changing position, so that the high efficiency of tool changing is ensured.

In order to ensure that the air blowing cleaning time is met and the tool is changed more reasonably in a matched manner, in the moving process of the processing main shaft to the preset safe height, if the opening time of the second controllable valve reaches the set time before the processing main shaft reaches the preset safe height, the second controllable valve is controlled to be normally closed to finish the air blowing cleaning step and control the processing main shaft to stop rotating; and if the opening time of the second controllable valve does not reach the set time after the machining main shaft reaches the preset safety height, controlling the second controllable valve to continue opening and the machining main shaft to continue rotating until the opening time of the second controllable valve reaches the set time, controlling the second controllable valve to be normally closed, completing the air blowing cleaning step and controlling the machining main shaft to stop rotating.

4. And (5) quickly spraying liquid.

After the cutter head is replaced, the water pump is controlled to be started, the first controllable valve is opened in the step, so that flushing liquid is sprayed out from the spraying nozzle at high pressure, and the machining spindle is started to machine. And returning to the tool changing preparation step when the tool bit needs to be changed after the machining of the current process is finished.

A typical flow in the present embodiment will be described in detail with reference to fig. 2, taking the tool magazine structure disclosed in patent publication No. CN 109465664 a and the tool changing robot involved as an example.

And (2) taking the A as a starting point, finishing the machining program, starting a tool changing instruction, continuously rotating the machining main shaft, controlling the water pump to be closed, simultaneously controlling the angle seat valve to be closed, automatically closing the shifting sheet one-way valve at the water pump side, and freezing the flushing liquid in a pipeline from the shifting sheet one-way valve to the angle seat valve to be flowable (flowable freezing, non-refrigeration freezing).

And then, controlling the pulse type opening and closing of a two-way electric control valve of the compressed air, starting timing, enabling the pulse type compressed air to enter the inner cavity of the spray nozzle through the two-way electric control valve, spraying from the spray nozzle, removing residual pressure of washing liquid in the spray nozzle, and spraying the residual washing liquid.

At this time, the machining spindle continues to rotate, and the spindle sliding table serving as a part of the driving mechanism moves to a preset safety height at full speed, so that a moving space is provided for the tool changing manipulator when tool changing is carried out, and a tool bit is not touched, as shown in point B in fig. 2.

And the control system selects an optimal path of the processing spindle, and in the process that the spindle sliding table moves to a position (a preset safe height position) above a tool changing displacement point (namely a tool changing position) at full speed, the pulse residual pressure is removed continuously, and the processing spindle rotates. In this process, if the pulse type residual pressure clearing set working time is reached, the two-way electric cavity valve is closed, the pulse type residual pressure clearing is stopped, and then the rotation of the machining spindle is stopped. If the set working time is not reached, residual pressure removal is continued, and the machining spindle continues to rotate, as indicated by section C in FIG. 2.

After the main shaft sliding table reaches the position above the tool changing point, if the pulse blowing set time is reached, the two-way electric control valve is closed, the pulse type residual pressure removal is stopped, and then the rotation of the processing main shaft is stopped, such as a point D in fig. 2; if the pulse blowing set time is not reached, the two-way electric control valve is continuously opened and closed, the pulse type residual pressure is continuously removed, and the machining spindle continues to rotate until the set time is reached. When cleaning is completed, the machining spindle is moved downwards at full speed to the tool changing station, at which point the machining spindle and the cleaning residues (cleaning residues) must be stopped, as indicated in fig. 2 at segment E.

In the above process or the machining process of the machine tool, the tool magazine and the tool changing manipulator complete the tool preparation or the tool taking in the tool magazine in another coordination process (cooperation program), and the tool changing manipulator prepares for tool changing, as shown in section G in fig. 2.

After pulse type residual pressure is removed, the main shaft sliding table moves downwards to a tool changing point at full speed, and meanwhile, a tool magazine door is opened.

When the main shaft sliding table reaches the tool changing point, the tool changing manipulator moves to the tool changing point at full speed.

The system detects that the machining spindle is completely stopped, one clamping jaw of the tool changing manipulator clamps an upper tool shank of the machining spindle, and a spindle sliding table bears full-speed frog jump of the machining spindle, so that an old tool bit on the machining spindle is pulled out, and tool unloading of the machining spindle is finished, as shown in a point F in fig. 2; and moving the machining main shaft to the position of a new tool bit clamped by the other clamping jaw of the tool changing manipulator along with the leapfrog of the machining main shaft, installing a new tool holder on the other clamping jaw of the tool changing manipulator into the machining main shaft, loosening the clamping jaw, and finishing tool changing of the machining main shaft, wherein the point I is shown in figure 2. And the H section between the F point and the I point is a parabolic track, namely a frog leaping track.

After the system detects the other clamping jaw loosening signal, the spindle is rotated and opened, meanwhile, the spindle sliding table drives the spindle to move upwards to a safe height at full speed, the tool changing manipulator moves to the lower part of the tool magazine at full speed, then the tool magazine door is opened and closed, and a tool bit is isolated, as shown in section J in fig. 2.

After the system detects that the tool magazine door is closed, the water pump is started, meanwhile, the angle seat valve is opened, then, washing liquid is sprayed out from the spray nozzle at high pressure, as shown in a section K in figure 2, and the main shaft sliding table carries the processing main shaft and moves to the position above a processing point at full speed.

After the system detects that the rotating speed of the processing spindle reaches a set speed, the spindle sliding table bears the processing spindle and moves downwards to a processing point, such as an L section in fig. 2, and after the spindle sliding table reaches the set processing point, the processing spindle starts to process, such as an M point in fig. 2. The trace map in fig. 2 is only used to help the reader understand, and the trace map in actual operation may not be completely consistent.

At above tool changing in-process, the processing main shaft is rotatory to stop after the pulse type residual pressure is cleared up, and when its aim at pulse type residual pressure was clear away, when remaining flushing fluid spouts handle of a knife or cutter, the rotatory ability of processing main shaft effectively got rid of and takes off remaining flushing fluid to keep the cleanness of handle of a knife or cutter, pollution manipulator and tool magazine when preventing the tool changing.

From the above description, it can be known that, in the advancing process of tool changing, the pulse type residual pressure of the flushing liquid is synchronously cleared, and the manipulator is provided with tools at the tool magazine end, and multiple coordination processes or multiple tasks are simultaneously carried out, so that the tool changing time is shorter.

Pulse type residual pressure is removed, residual liquid in the injection nozzle is thoroughly cleaned, energy is saved, and the injection nozzle is further combined with the rotation start and stop of the main shaft, so that a main shaft cutter handle or a cutter is cleaner, the assembly precision is higher during cutter changing, and the pollution to a mechanical arm and a cutter base is reduced. The embodiment of the utility model provides a multiple technological effect has been realized: and selecting the nearest path to reach a target point, and adopting a special frog-leaping curve in the tool changing process so as to facilitate better acceleration and deceleration performance. Pulse type residual pressure damage, residual cooling liquid thrown off by the rotation of the processing main shaft, simultaneous action of a plurality of coordination ranges, better time sequence and compact time gallium mobility. The path is shorter, the time sequence is more compact, and interference factors are effectively eliminated, so that tool changing is more efficient, and the precision is higher.

Through the embodiment of the utility model provides a quick method has solved: 1. the cooling liquid is quickly and accurately opened and closed, and the phenomenon of cooling liquid ejection end lines or dripping is controlled; 2. controlling residual injection on a cutter handle and a cutter on the main shaft when the residual pressure is damaged; 3. a shorter tool change travel path; 4. more reasonable tool changing time sequence; 5. overall shorter tool change time and better tool change accuracy.

The embodiment of the present invention provides a washing device for quick tool changing of a processing machine, which is described in detail above, and the specific examples are applied herein to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understand the core idea of the present invention; meanwhile, for the person skilled in the art, according to the idea and method of the present invention, there may be changes in the specific embodiments and the application scope, and in summary, the content of the present specification should not be understood as a limitation to the present invention.

Claims (6)

1. A washing unit for quick tool changing of processing machine, its characterized in that includes: the washing machine comprises a water pump, a first one-way valve, a second one-way valve, a first controllable valve, a second controllable valve and a spraying nozzle, wherein the water pump is used for sucking washing liquid; the water pump and the first controllable valve are closed simultaneously, and the first one-way valve is automatically closed, so that flushing liquid in a pipeline between the first controllable valve and the first one-way valve is locked.

2. The quick tool change flushing device for processing machines according to claim 1, characterized in that an overflow valve is arranged at the outlet of the water pump.

3. The quick tool changing flushing device for processing machines according to claim 1 or 2, characterized in that the second controllable valve is opened in a pulse-type manner so that the air flow from the outside compressed air to the spray nozzle through the second controllable valve and the second one-way valve is in a pulse-type air pressure.

4. The apparatus of claim 3, wherein the second controllable valve is a two-way electrically controllable valve.

5. The quick tool change flushing device for processing machines according to claim 1 or 2, characterized in that the first one-way valve is a blade one-way valve and the first controllable valve is an angle seat valve.

6. The apparatus of claim 1 or 2, wherein the first controllable valve and the second controllable valve are integrated into a three-position five-way electrically controlled valve.

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