Passage conversion valve and industrial dust collector, precision boring equipment having the same

Abstract

The application provides a channel conversion valve, which comprises a valve body, an air suction port, a first channel and a second channel, the air suction port being connected with the first channel and the second channel; a valve core, which is rotatably arranged in the valve body, the valve core being provided with a first through hole and a second through hole, the first through hole being capable of conducting the first channel when the valve core rotates to a first position, and the second through hole being capable of conducting the second channel when the valve core rotates to a second position. The problem that the service life of a motor of a dust collector is greatly affected due to frequent closing and starting of the dust collector in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing bush processing, in particular to a channel switching valve and an industrial dust collector and a fine boring equipment with the channel switching valve. BACKGROUND

[0002] The bearing bush, also called the shaft bush, is one of the important components of the bearing, is the part of the sliding bearing and the shaft contact, is a semicylindrical surface with a shape of a tile and is very smooth. The main function of the bearing bush is to bear the action force applied by the shaft neck, to keep the oil film stable, to make the bearing work stably and to reduce the friction loss of the bearing. Therefore, the material of the bearing bush should have the properties of small friction coefficient, sufficient fatigue strength, good running-in property and good corrosion resistance, and is generally made of bronze, wear-resistant alloy and other wear-resistant materials. In order to ensure the good operation of the machine, the processing requirement of the bearing bush is very strict and the precision requirement is also high, so the processing of the bearing bush belongs to the category of fine processing. The fine boring equipment is generally used for fine processing of the bearing bush.

[0003] The fine boring equipment cuts the bearing bush by the high-speed rotating boring tool, and the use of the fine boring equipment improves the qualified rate of the bearing bush and the production efficiency. However, when the bearing bush is processed, the iron filings cut by the boring tool will splash and fall under the action of the high-speed rotation of the boring tool. Since about forty thousand bearing bushes can be produced on the fine boring equipment production line in one day, the generated iron filings will be very much, which makes it difficult to clean up in the subsequent cleaning process. In addition, the processing precision of the bearing bush is micrometer level, and the splashing iron filings will also collide with the bearing bush being produced in the production process, which may damage the bearing bush and affect the production precision of the bearing bush. At the same time, on the other hand, the bearing bush needs to be installed on the mold for boring processing during processing, and as mentioned above, the processing precision of the bearing bush is micrometer level, so after the processing of a bearing bush is completed, in order to not affect the processing precision of the next bearing bush, the residual iron filings in the mold also need to be cleaned before processing the next bearing bush.

[0004] At present, the common practice is to set two dust suction stations on the fine boring equipment, one of which is set at the boring position to suck and remove the iron filings generated when the bearing shell is processed, and the other is set below the boring position, so that the mold can automatically fall after the bearing shell is processed, thereby sucking and removing the residual iron filings in the mold. Since there is no device capable of rotating and conducting multiple dust suction pipelines in the existing industrial dust collector equipment, the current practice can only use two industrial dust collectors to suck dust at the two dust suction stations. Since the bearing shell is relatively light, the continuous operation of the dust suction station at the boring position will scatter the new bearing shell to be processed when it is transferred and placed directly above the mold, so that the mold cannot be completely fitted with the new bearing shell after the mold is reset, which will cause damage to the tool and the bearing shell during processing. Therefore, the dust suction station at the boring position needs to be intermittently operated in actual operation, that is, when the fine boring equipment is in the state of processing the bearing shell, the industrial dust collector corresponding to the dust suction station at the boring position is started to make the dust suction station at the boring position in the state of dust suction, and when the bearing shell is replaced with a new one to be processed, the industrial dust collector corresponding to the dust suction station at the boring position is stopped to make the dust suction station at the boring position stop sucking dust. This method will cause damage to the motor of the industrial dust collector, greatly reduce the service life of the industrial dust collector, and require frequent maintenance or replacement of the industrial dust collector, which affects the work efficiency and increases the production cost. SUMMARY

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a channel switching valve capable of rotating and conducting two channels.

[0006] The channel switching valve comprises a valve body, an air suction port, a first channel and a second channel are arranged in the valve body, the air suction port is connected with the first channel and the second channel; a valve core is rotatably arranged in the valve body, a first through hole and a second through hole are arranged on the valve core, when the valve core rotates to a first position, the first through hole on the valve core can conduct the first channel; when the valve core rotates to a second position, the second through hole on the valve core can conduct the second channel.

[0007] Preferably, the valve core is rotatably installed on the valve body through a bearing.

[0008] Preferably, one end of the valve core is provided with a driving device, and the driving device can drive the valve core to rotate relative to the valve body.

[0009] Preferably, the driving device is a rotary air cylinder.

[0010] Preferably, the rotating cylinder is further provided with an anti-rotation device, which can limit the rotation of the shell of the rotating cylinder relative to the piston rod in the rotating cylinder.

[0011] Preferably, the anti-rotation device comprises a connecting plate and a fixing pin, the connecting plate is fixedly connected to the shell of the rotating cylinder by screws, and one end of the fixing pin penetrates through the connecting plate and is embedded in the valve body.

[0012] Preferably, the angle between the first position and the second position is 90°.

[0013] Preferably, a pressure sensor is arranged in the first channel and / or the second channel.

[0014] The beneficial effects of the channel switching valve of the present application are as follows: when the first channel needs to be connected, the valve core is rotated to the first position, so that the first through hole on the valve core is communicated with the first channel in the valve body, and the first channel in the valve body is connected through the first through hole on the valve core, at this time, the second channel in the valve body is closed by the valve core body; when the second channel needs to be connected, the valve core is rotated to the second position, so that the second through hole on the valve core is communicated with the second channel in the valve body, and the second channel in the valve body is connected through the second through hole on the valve core, at this time, the first through hole on the valve core returns to the original position, and the first channel in the valve body is closed by the valve core body. Therefore, as described above, the channel switching valve of the present application can realize the rotation of two different channels, that is, the first channel is connected and the second channel is closed, or the second channel is connected and the first channel is closed.

[0015] The present application also provides an industrial dust collector, which can realize the dust collection work on two dust collection positions and can rotate the dust collection work on the two dust collection positions, so that the intermittent dust collection work on the dust collection position can be realized without frequent starting and stopping of the industrial dust collector, and the industrial dust collector is not easy to be damaged and has a longer service life.

[0016] The industrial dust collector comprises a dust collector main body, a dust collector main pipe connected to the dust collector main body, a first dust collection branch pipe, a second dust collection branch pipe, and the channel switching valve as described above, the first dust collection branch pipe is connected to the first channel of the channel switching valve, the second dust collection branch pipe is connected to the second channel of the channel switching valve, and the air inlet of the channel switching valve is connected to the dust collector main pipe.

[0017] In use, the suction port of the first suction sub-pipe of the industrial dust collector can be arranged at the first work station, and the suction port of the second suction sub-pipe can be arranged at the second work station. When the first work station needs to be cleaned, the valve core is rotated to the first position, the first channel of the channel conversion valve is used to connect the first suction sub-pipe with the main pipe of the dust collector, and the second suction sub-pipe is disconnected with the main pipe of the dust collector. At this time, the first work station can be cleaned. When the second work station needs to be cleaned, the valve core is rotated to the second position, the second channel of the channel conversion valve is used to connect the second suction sub-pipe with the main pipe of the dust collector, and the first suction sub-pipe is disconnected with the main pipe of the dust collector. At this time, the second work station can be cleaned. Compared with the prior art, only one industrial dust collector can be used to clean two work stations, and the two work stations can be cleaned in turn under the condition that the industrial dust collector is in a continuous working state. Therefore, the dust collector does not need to be frequently started and stopped, the intermittent cleaning of the work station can be realized, the corresponding dust cleaning demand during the work of the dust collector is met, and the problem that the dust collector motor is easily damaged due to the frequent starting and stopping of the dust collector in the prior art is avoided. The frequency of maintenance and replacement of the dust collector motor is reduced, the production efficiency is improved, and the production cost is reduced.

[0018] The application further provides a fine boring equipment with a simpler structure and higher production efficiency, which comprises an equipment main body and the industrial dust collector.

[0019] The fine boring equipment can clean the iron filings generated during the machining of the part product. Compared with the prior art, the fine boring equipment can use one industrial dust collector to clean the iron filings of two work stations, and the iron filings of the two work stations can be cleaned in turn, the corresponding dust cleaning demand during the machining of the fine boring equipment is met, and the overall structure is simplified. The dust collector does not need to be frequently started and stopped, the service life of the dust collector is longer, and the problem that two industrial dust collectors are needed during the machining of the bearing shell of the fine boring equipment in the prior art, the dust collector needs to be frequently started and stopped, the dust collector motor is easily damaged, the production cost is finally high, and the production efficiency is low is solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The application provides a valve body structure diagram.

[0021] Figure 2 The application provides a valve core structure diagram.

[0022] Figure 3 The application provides a valve core and valve body assembly structure diagram.

[0023] Figure 4 The application provides a first view of the channel conversion valve.

[0024] Figure 5 Second view of the passage conversion valve provided by the present application.

[0025] Figure 6 Third view of the passage conversion valve provided by the present application.

[0026] Figure 7 Structure schematic view of the industrial dust collector provided by the present application.

[0027] Explanation of element reference numerals:

[0028] 1 valve body

[0029] 10 air suction port

[0030] 11 first passage

[0031] 12 second passage

[0032] 2 valve core

[0033] 21 first through hole

[0034] 22 second through hole

[0035] 3 bearing

[0036] 30 end cover

[0037] 4 rotary air cylinder

[0038] 40 piston rod

[0039] 41 limiting member

[0040] 42 shell

[0041] 5 fixing screw

[0042] 6 connecting plate

[0043] 60 fixing pin

[0044] 7 dust collector

[0045] 70 main dust collection pipe

[0046] 71 first dust collection sub-pipe

[0047] 72 second dust collection sub-pipe

[0048] 8 fine boring equipment

[0049] 80 mold DETAILED DESCRIPTION

[0050] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0051] The structures, proportions, and sizes depicted in the accompanying drawings of this invention are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "front," "rear," "left," "right," "middle," "first," and "second," etc., used in this specification are merely for clarity of description and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention's implementation.

[0052] In the description of this invention, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] This invention provides a channel switching valve, such as... Figures 1 to 3 As shown, the channel switching valve includes a valve body 1 and a valve core 2. The valve body 1 has a first channel 11 and a second channel 12, as well as an air intake 10 connected to both the first channel 11 and the second channel 12. The valve core 2 has two through holes, namely a first through hole 21 and a second through hole 22, and the valve core 2 is rotatably disposed in the valve body 1. When the valve core 2 rotates to the first position in the valve body 1, the central axis of the first through hole 21 on the valve core 2 coincides with the central axis of the first channel 11 in the valve body 1 (so that the first through hole conducts the first channel), that is, the first channel 11 is opened. When the valve core 2 rotates to the second position in the valve body 1, the central axis of the second channel 22 on the valve core 2 coincides with the central axis of the second channel 12 in the valve body 1 (so that the second through hole conducts the second channel), that is, the second channel 12 is opened.

[0054] Specifically, such as Figure 4As shown in the drawings, in the embodiment, bearings 3 are symmetrically fixed on both sides of the valve body 1, and the two ends of the valve core 2 are distributed through the two bearings 3 and are rotatably installed in the valve body 1 through the bearings. The valve core 2 is rotatably installed in the valve body 1 through the bearings, which is simple in structure and low in manufacturing cost. Further, in order to prevent impurities from entering the bearings 3 and affecting the rotation cooperation between the valve core 2 and the bearings 3 during use, preferably, in the embodiment, end covers 30 are arranged on the two bearings 3, which can seal the bearings 3 and ensure the rotation cooperation precision between the bearings 3 and the valve core 2.

[0055] Specifically, as shown in the drawings, Figure 2 In the embodiment, the valve core 2 is a cylinder, the first through hole 21 and the second through hole 22 are arranged on the circumferential surface of the valve core 2 along the axial direction of the valve core 2, and the center axis of the first through hole 21 and the center axis of the second through hole 22 are perpendicular to each other in space, that is, the opening direction of the first through hole 21 and the opening direction of the second through hole 22 are 90°. Further, in order to enable the first channel 11 and the second channel 12 to be straight cylinders connected with the air inlet 10, thereby enabling the channel switching valve to be smooth in use and reducing the accumulation of waste and debris in the channel switching valve, as shown in the drawings, Figure 1 The first channel 11, the second channel 12 and the air inlet 10 are arranged in the valve body 1 in a "person" shape, that is, one end of the first channel 11 and one end of the second channel 12 intersect and then connect with the air inlet 10. Specifically, in the initial state of the channel switching valve, the first through hole 21 or the second through hole 22 is in a conductive state (that is, the center axis of the first through hole coincides with the center axis of the first channel, or the center axis of the second through hole coincides with the center axis of the second channel), when the center axis of the first through hole 21 coincides with the center axis of the first channel 11 to conduct the first channel 11, since the center axes (opening directions) of the first through hole 21 and the second through hole 22 are perpendicular to each other, at this time the second channel 12 will be blocked by the valve core 2 body and be in a closed state, when the valve core 2 rotates 90° clockwise or counterclockwise, the first through hole 21 returns to the original position, the first channel 21 will be blocked by the valve core 2 body and be in a closed state, and the center axis of the second through hole 22 will coincide with the center axis of the second channel 12, that is, the second channel 22 will be conducted.

[0056] Further, in order to enable the two channels in the channel switching valve to be automatically switched, in the embodiment, the valve core 2 is driven by a driving device, specifically as shown in the drawings, Figures 4 to 6As shown, a rotary cylinder 4 is mounted at one end of the valve core 2, and the rotary cylinder 4 is detachably connected with the one end of the valve core 2. When mounted, the one end of the valve core 2 is connected with the piston rod 40 of the rotary cylinder 4 through a screw, and a fixing screw 5 is further included to prevent axial movement of the valve core 2 during operation. The fixing screw 5 passes through the end of the piston rod 40 along the central axis of the piston rod 40 of the rotary cylinder 4 and is connected with the end of the valve core 2. During operation, the rotary cylinder 4 is connected with a gas source through a reversing valve. The reversing valve can control the direction of gas entering the rotary cylinder 4, thereby controlling the rotation direction (i.e., clockwise rotation or counterclockwise rotation) of the rotary cylinder 4. Then, the maximum rotation angle of the rotary cylinder 4 is adjusted to 90° through an adjusting limiting piece 41 on the rotary cylinder 4. Taking the first channel 11 as the conducting state in the initial state as an example, the central axis of the first through hole 21 coincides with the central axis of the first channel 11, and the second channel 12 is closed by the valve core 2. When it is needed to switch to the second channel 12 to be conducted, the direction of gas entering the rotary cylinder 4 is controlled through the reversing valve, thereby controlling the rotary cylinder 4 to rotate 90° clockwise (or counterclockwise) to drive the valve core 2. At this time, the first channel 11 is closed by the valve core 2, and the central axis of the second through hole 22 coincides with the central axis of the second channel 12, thereby conducting the second channel 12. Thus, the conducting of the first channel 11 is switched to the conducting of the second channel 12. Then, when it is needed to switch to the conducting of the first channel 11 again, the direction of gas entering the rotary cylinder 4 is controlled through the reversing valve to control the rotary cylinder 4 to rotate 90° counterclockwise (or clockwise) to drive the valve core 2 to rotate, thereby conducting the first channel 11 and closing the second channel 12. The above-mentioned process is repeated to switch and conduct the two channels of the channel switching valve.

[0057] Further, in order to prevent the shell 42 of the rotary cylinder 4 from continuing to rotate relative to the piston rod 40 when the piston rod 40 of the rotary cylinder 4 drives the valve core 2 to rotate to the set position and stops rotating, a self-rotation prevention device is arranged on the shell 42 of the rotary cylinder 4 in the embodiment. The self-rotation prevention device includes a connecting plate 6 which is fixed on the shell 42 of the rotary cylinder 4 through a screw. A limiting hole is further arranged on the connecting plate 6. One end of a fixing pin 60 passes through the limiting hole and is embedded in the valve body, thereby fixing the shell 42 of the rotary cylinder 4 with the channel switching valve, and avoiding the shell 42 of the rotary cylinder from continuing to rotate relative to the piston rod 40 when the piston rod 40 of the rotary cylinder stops rotating. In order to simplify the structure of the channel switching valve and reduce the volume, preferably, one end of the fixing pin 60 is embedded in the end cover 30 in the embodiment. It should be noted that the driving device is preferably a rotary cylinder in the embodiment, and other driving devices such as a motor can also be selected in other optional embodiments, and the present application does not limit this.

[0058] Further, in order to be able to clean the first channel 11 and the second channel 12 in time, prevent the channel switching valve from being blocked, and avoid affecting the work efficiency. Preferably, in the embodiment, a pressure sensor (not shown in the figure) is arranged in the first channel 11 and the second channel 12 respectively, the two pressure sensors can respectively monitor the pressure in the first channel 11 and the second channel 12 in real time, when the pressure in the channel is greater than the predetermined value set by the pressure sensor due to too much waste and debris accumulated in the channel, the pressure sensor will send an alarm signal to inform the staff to clean the channel switching valve in time.

[0059] The beneficial effects of the channel switching valve of the present application are: taking the initial state of the channel switching valve as an example, that is, the first channel 11 is in a closed state and the second channel 12 is in a conductive state, when it is needed to make the first channel 11 conductive and the second channel 12 closed, the intake direction of the gas into the rotary cylinder is controlled by triggering the reversing valve, so that the rotary cylinder 4 drives the valve core 2 to rotate 90° to the set position, so that the center axis of the first through hole 21 on the valve core 2 coincides with the center axis of the first channel 11 in the valve body 1, thereby making the first channel 11 conductive and the second channel 12 closed, when it is needed to make the first channel 11 closed and the second channel 12 conductive again, the intake direction of the gas into the rotary cylinder 4 is controlled by triggering the reversing valve again, so that the rotary cylinder 4 drives the valve core 2 to rotate 90° to the set position in the other direction, so that the center axis of the second through hole 22 on the valve core 2 coincides with the center axis of the second channel 12 in the valve body 1, thereby making the first channel 11 closed and the second channel 12 conductive.

[0060] Compared with the prior art, the channel switching valve of the present application can realize the back-and-forth switching of two different pipes. For example, by installing the channel switching valve on an existing industrial dust collector, the dust cleaning of two workstations can be realized by one industrial dust collector, and the continuous work of the dust collector can switch the dust cleaning of the two workstations to meet the corresponding dust cleaning needs in work. It should be noted that the application range of the channel switching valve is not limited, and the channel switching valve can be applied in any place or equipment according to the corresponding needs in daily work.

[0061] The embodiment of the present application also provides an industrial dust collector, which comprises a dust collector body 7 and the above-mentioned channel switching valve, the dust collector body 7 is provided with a dust collector main pipe 70, one end of the dust collector main pipe 70 is connected with the dust collector body 7 in communication, and the other end is connected with the air inlet 10 of the channel switching valve in communication; a first dust collection branch pipe 71 is connected to the first channel 11 of the channel switching valve, and a second dust collection branch pipe 72 is connected to the second channel 12 of the channel switching valve.

[0062] The industrial dust collector of the present application is used in the precision boring equipment, as shown in the drawings, the suction port 10 of the channel switching valve is connected with the main dust collecting pipe 70 of the industrial dust collector, then the dust collecting port of the first dust collecting branch pipe 71 is arranged at the position of the precision boring equipment 8 machining the bearing bush, the dust collecting port of the second dust collecting branch pipe 72 is arranged at the lower end of the precision boring equipment 8 machining the bearing bush (i.e. the position of cleaning the mold 80). Figure 7 When the bearing bush is machined, if the initial state of the channel switching valve is that the first channel 11 is closed and the second channel is open, the gas entering direction of the rotary cylinder is controlled by triggering the reversing valve, so that the rotary cylinder 4 drives the valve core 2 to rotate 90° to the set position to make the first channel 11 (the first dust collecting branch pipe) open and the second channel 12 (the second dust collecting branch pipe) close, and then the iron filings generated during machining the bearing bush are sucked away by the suction force in the first dust collecting branch pipe 71 (if the initial state of the channel switching valve is that the first channel is open and the second channel is closed at this time, the valve core 2 does not need to be rotated). When the machining of the bearing bush is completed, the machined bearing bush is clamped and taken away, and the mold 80 falls, and the clamping jaw places another bearing bush to be machined above the mold 80. At this time, the first dust collecting branch pipe 71 is blocked by controlling the rotary cylinder 4 to drive the valve core 2 to rotate 90° in the other direction (to avoid the influence of the suction force in the first dust collecting branch pipe at the bearing bush machining position on the bearing bush to be machined placed above the mold, so that the bearing bush to be machined is scattered, thereby ensuring that the mold can be completely and accurately fitted with the bearing bush to be machined when the mold rises to the original position, so that the precision boring equipment can normally machine the bearing bush to be machined), and the second dust collecting branch pipe 72 is open. At this time, the residual iron filings in the mold are sucked away by the suction force in the second dust collecting branch pipe 72 at the mold cleaning position, ensuring the fitting accuracy between the mold and the bearing bush. Compared with the prior art, only one industrial dust collector of the present application can realize the cleaning of the iron filings of two positions, and the industrial dust collector in the continuous working state can alternately clean the iron filings of the two positions, without the need to frequently start and stop the dust collector, greatly improving the service life of the industrial dust collector, reducing the frequency of maintenance and replacement of the dust collector motor, improving the production efficiency and reducing the production cost. It should be noted that the industrial dust collector is not limited to being used in the precision boring equipment, and can be used in any equipment according to the corresponding dust collecting demand in daily work.

[0063] The embodiment of the present application also provides a fine boring equipment, which comprises an equipment main body and the industrial dust collector, the equipment main body is provided with a mold, a cam mechanism for controlling automatic lifting of the mold and an angle encoder, when the mold is in contact with the bearing bush, i.e. in the state of processing the bearing bush, the mold is in the upper position, the rotation angle of the cam at this time is 0 degree, at this time, the angle encoder obtains a first signal and transmits the first signal to a reversing valve, after the reversing valve obtains the first signal, the rotating cylinder drives the valve core to rotate to a set position, i.e. the first channel 11 is open and the second channel 12 is closed, the fine boring equipment can suck away the iron filings generated by processing the bearing bush through the first dust suction branch 71; when the processing of the bearing bush is completed, the mold falls, at this time, the cam rotates 180 degrees, the angle encoder obtains a second signal and transmits the second signal to the reversing valve, after the reversing valve obtains the second signal, the rotating cylinder drives the valve core to rotate to another set position, i.e. the first channel 11 is closed and the second channel 12 is open, so that the residual iron filings in the mold are sucked away through the suction force in the second dust suction branch 72. Compared with the prior art, the fine boring equipment of the present application can automatically realize the cleaning of the iron filings generated by processing, and automatically clean the mold after processing, and through one industrial dust collector, the iron filings of two workstations can be sucked away, which meets the corresponding dust suction demand of the fine boring equipment, and the dust collector no longer needs to be frequently started and stopped, so that the service life of the dust collector is longer, and the problems of the prior art, i.e. two industrial dust collectors are needed for processing the bearing bush of the fine boring equipment, the dust collector needs to be frequently started and stopped, the motor of the dust collector is easily damaged, and the production cost is high and the production efficiency is low, are solved.

[0064] In summary, the channel switching valve, the industrial dust collector with the channel switching valve and the fine boring equipment of the present application can realize the cleaning of the iron filings of two workstations through one industrial dust collector, and the dust collector no longer needs to be frequently started and stopped, so that the service life of the dust collector is greatly improved, the production cost is reduced, the problem of the prior art, i.e. the service life of the motor of the dust collector is greatly affected due to the frequent starting and stopping of the dust collector, is solved, and the motor of the dust collector no longer needs to be frequently replaced or repaired, so that the production efficiency is greatly improved. Therefore, the present application effectively overcomes the various shortcomings of the prior art and has high industrial utilization value.

[0065] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.

Claims

1. A ported switching valve characterized by, The valve body is provided with an air suction port, a first channel and a second channel, and the air suction port is connected with the first channel and the second channel; The valve core is rotatably arranged in the valve body, and the valve core is provided with a first through hole and a second through hole, when the valve core rotates to a first position, the first through hole of the valve core can guide the first channel to be conducted, when the valve core rotates to a second position, the second through hole of the valve core can guide the second channel to be conducted; One end of the valve core is provided with a driving device, and the driving device can drive the valve core to rotate relative to the valve body; The angle between the first position and the second position is 90°. The valve core is rotatably arranged in the valve body through a bearing.

2. A port switching valve according to claim 1, characterized in that: The driving device is a rotary cylinder.

3. A port switching valve according to claim 1, wherein The rotary cylinder is also provided with an anti-rotation device, which can limit the rotation of the shell of the rotary cylinder relative to the piston rod in the rotary cylinder.

4. A port switching valve according to claim 3, wherein The anti-rotation device includes a connecting plate and a fixed pin, the connecting plate is fixedly connected on the shell of the rotary cylinder through a screw, and one end of the fixed pin penetrates through the connecting plate and is embedded in the valve body.

5. A port switching valve according to claim 4, wherein The first channel and / or the second channel is provided with a pressure sensor.

6. A port switching valve according to claim 1, wherein The valve body is provided with an air suction port, a first channel and a second channel, and the air suction port is connected with the first channel and the second channel; 7. An industrial vacuum cleaner characterized in that The valve core is rotatably arranged in the valve body, and the valve core is provided with a first through hole and a second through hole, when the valve core rotates to a first position, the first through hole of the valve core can guide the first channel to be conducted, when the valve core rotates to a second position, the second through hole of the valve core can guide the second channel to be conducted; 8. A finish boring apparatus characterized by, One end of the valve core is provided with a driving device, and the driving device can drive the valve core to rotate relative to the valve body; The angle between the first position and the second position is 90°. The valve core is rotatably arranged in the valve body through a bearing. The driving device is a rotary cylinder. The rotary cylinder is also provided with an anti-rotation device, which can limit the rotation of the shell of the rotary cylinder relative to the piston rod in the rotary cylinder. The anti-rotation device includes a connecting plate and a fixed pin, the connecting plate is fixedly connected on the shell of the rotary cylinder through a screw, and one end of the fixed pin penetrates through the connecting plate and is embedded in the valve body. The first channel and / or the second channel is provided with a pressure sensor. The valve body is provided with an air suction port, a first channel and a second channel, and the air suction port is connected with the first channel and the second channel; The valve core is rotatably arranged in the valve body, and the valve core is provided with a first through hole and a second through hole, when the valve core rotates to a first position, the first through hole of the valve core can guide the first channel to be conducted, when the valve core rotates to a second position, the second through hole of the valve core can guide the second channel to be conducted; One end of the valve core is provided with a driving device, and the driving device can drive the valve core to rotate relative to the valve body; The angle between the first position and the second position is 90°. The valve core is rotatably arranged in the valve body through a bearing. The driving device is a rotary cylinder. The rotary cylinder is also provided with an anti-rotation device, which can limit the rotation of the shell of the rotary cylinder relative to the piston rod in the rotary cylinder. The anti-rotation device includes a connecting plate and a fixed pin, the connecting plate is fixedly connected on the shell of the rotary cylinder through a screw, and one end of the fixed pin penetrates through the connecting plate and is embedded in the valve body. The first channel and / or the second channel is provided with a pressure sensor. The valve body is provided with an air suction port, a first channel and a second channel, and the air suction port is connected with the first channel and the second channel; The valve core is rotatably arranged in the valve body, and the valve core is provided with a first through hole and a second through hole, when the valve core rotates to a first position, the first through hole of the valve core can guide the first channel to be conducted, when the valve core rotates to a second position, the second through hole of the valve core can guide the second channel to be conducted; One end of the valve core is provided with a driving device, and the driving device can drive the valve core to rotate relative to the valve body; The angle between the first position and the second position is 90°. The valve core is rotatably arranged in the valve body through a bearing. The driving device is a rotary cylinder. The rotary cylinder is also provided with an anti-rotation device, which can limit the rotation of the shell of the rotary cylinder relative to the piston rod in the rotary cylinder. The anti-rotation device includes a connecting plate and a fixed pin, the connecting plate is fixedly connected on the shell of the rotary cylinder through a screw, and one end of the fixed pin penetrates through the connecting plate and is embedded in the valve body. The first channel and / or the second channel is provided with a pressure sensor.

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