Convenient-to-adjust double-control valve for machine tool

Abstract

The invention discloses a convenient-to-adjust double-control valve for a machine tool, and belongs to the technical field of control valves. The convenient-to-adjust double-control valve comprises a valve body which is connected with a direction adjusting assembly; the direction adjusting assembly comprises two sets of first cavities, two sets of second cavities, a set of bidirectional driving assembly, two sets of transition conduction assemblies, a set of sixth channels and two sets of elastic plugging assemblies, the two sets of first cavities, the two sets of second cavities and the set of sixth channels are formed in the valve body, and the inner ends of the first cavities communicate with the inner ends of the second cavities; the upper side and the lower side of the sixth channel communicate with the second cavity, and the joint of the sixth channel and the second cavity is located on the outer side of the end, close to the elastic plugging assembly, of the transition conduction assembly. The group of first chambers are connected with a first gas source assembly; the other group of first chambers is connected with a second gas source assembly; the second cavity on the lower side is provided with a first oil outlet assembly; the second cavity on the upper side is connected with a second oil outlet assembly; in this way, oil outlet of different channels is controlled through the air inlet direction, actual use is facilitated, and stability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of control valves, and particularly relates to a dual-control valve for machine tools that is convenient to adjust. Background Art

[0002] The dual-control valve is a one-inlet two-outlet control valve and is often used when a machine tool processes workpieces. Currently, an electro-hydraulic integrated control method is widely adopted. However, the electro-hydraulic integrated control system is complex in design, difficult to maintain, has many faults, and easily causes instability in the operation of the equipment.

[0003] Based on this, the present invention designs a dual-control valve for machine tools that is convenient to adjust to solve the above problems. Summary of the Invention

[0004] In view of the above-mentioned drawbacks of the prior art, the present invention provides a dual-control valve for machine tools that is convenient to adjust.

[0005] To achieve the above object, the present invention is realized through the following technical solutions:

[0006] A dual-control valve for machine tools that is convenient to adjust, comprising a valve body:

[0007] The valve body is connected with a direction adjustment assembly for adjusting the oil outlet direction;

[0008] The direction adjustment assembly includes two groups of first chambers, two groups of second chambers, one group of bidirectional drive assemblies, two groups of transition conduction assemblies, one group of sixth channels, and two groups of elastic plugging assemblies. Two groups of first chambers, two groups of second chambers, and one group of sixth channels are formed in the valve body. The inner ends of the first chambers communicate with the inner ends of the second chambers. The upper and lower sides of the sixth channel communicate with the second chambers. The connection between the sixth channel and the second chamber is located outside the end of the transition conduction assembly close to the elastic plugging assembly. The bidirectional drive assembly is installed in the first chamber. The transition conduction assemblies and the elastic plugging assemblies are both installed in the second chamber, and the transition conduction assemblies are located inside the elastic plugging assemblies;

[0009] One group of first chambers is connected with a first air source assembly for controlling air pressure;

[0010] The other group of first chambers is connected with a second air source assembly for controlling air pressure;

[0011] The second chamber on the lower side is connected with an oil inlet assembly for oil inlet and a first oil outlet assembly for oil outlet. The connection between the oil inlet assembly and the second chamber is located outside the end of the transition conduction assembly close to the elastic plugging assembly. The connection between the first oil outlet assembly and the second chamber is located below the end of the lower transition conduction assembly away from the elastic plugging assembly;

[0012] The second chamber on the upper side is connected with a second oil outlet assembly for oil outlet, and the connection part of the second oil outlet assembly and the second chamber is located below the end of the transition conduction assembly on the upper side away from the elastic sealing assembly.

[0013] Furthermore, the bidirectional driving assembly includes two groups of first mounting seats, two groups of first pistons, two groups of first springs, two groups of sealing rings, two groups of piston rods and a ninth channel; the two groups of first mounting seats are respectively installed at the outer ends of the first chamber, the first piston is fitted and slidably connected inside the first chamber, the piston rod and the first spring are fixedly connected in the groove opened in the first chamber, and the inner end of the first spring is in contact with the first chamber, the sealing ring is fixedly installed at the inner end of the second chamber, and the inner wall of the sealing ring is in sliding fit with the piston rod, the end of the piston rod away from the first mounting seat is fixedly connected with a push rod, the piston rod and the push rod are both movable in the transition conduction assembly, the upper and lower sides of the ninth channel are connected to the first chamber, and the connection part of the ninth channel and the first chamber is located at the inner end of the first piston.

[0014] Furthermore, the transition conduction assembly includes an annular seat, a seventh channel and a tapered groove, the annular seat is inserted and installed at the inner end of the second chamber, a plurality of groups of seventh channels are opened at the end of the annular seat close to the first mounting seat, a tapered groove for cooperating with the elastic sealing assembly is opened at the end of the annular seat away from the first mounting seat, and the sealing ring and the push rod are movable in the annular seat.

[0015] Furthermore, the end of the annular seat close to the first mounting seat is in contact with the sealing ring.

[0016] Furthermore, the elastic sealing assembly includes a third channel, a second spring, a sliding rod, a transverse groove, a second mounting seat and a sphere, the second mounting seat is fixedly installed in the second chamber by means of threaded connection, a transverse groove is opened at the end of the second mounting seat close to the first mounting seat, the sliding rod is fitted and slidably connected in the transverse groove, the second spring is installed in the transverse groove opened in the second mounting seat, and the second spring is located outside the sliding rod, the end of the second spring close to the first mounting seat is in contact with the sphere through a fixedly connected sliding ring, when the push rod does not contact the sphere, the sphere is in contact with the tapered groove, and the second spring is in a compressed state, and a plurality of groups of third channels are opened at the end of the second mounting seat close to the first mounting seat.

[0017] Furthermore, the first air source assembly includes a first air pipe interface and an eighth channel, the first air pipe interface is opened at the bottom of the valve body, the valve body is provided with an eighth channel at the top of the first air pipe interface, and the eighth channel is connected to the upper first chamber, and the connection part of the eighth channel and the upper first chamber is located at the outer end of the first piston.

[0018] Further, the second air source assembly includes a second air pipe interface and a tenth channel. The second air pipe interface is opened at the bottom of the valve body. The valve body is provided with a tenth channel at the top of the second air pipe interface, and the tenth channel is connected to the first chamber at the lower side. The connection position between the tenth channel and the first chamber at the lower side is located at the outer end of the first piston.

[0019] Further, the oil inlet assembly includes a third hydraulic pipe connection port and a fifth channel. The third hydraulic pipe connection port is opened at the bottom of the valve body. The valve body is provided with a fifth channel at the top of the third hydraulic pipe connection port. The fifth channel is connected to the second chamber at the lower side, and the connection position between the fifth channel and the second chamber at the lower side is located outside the end of the annular seat close to the second mounting seat.

[0020] Further, the first oil outlet assembly includes a second hydraulic pipe connection port and a fourth channel. The second hydraulic pipe connection port is opened at the bottom of the valve body. The valve body is provided with a fourth channel at the top of the second hydraulic pipe connection port. The fourth channel is communicated with the second chamber at the lower side, and the connection position between the fourth channel and the second chamber at the lower side is located below the end of the annular seat away from the second mounting seat.

[0021] Further, the second oil outlet assembly includes a first hydraulic pipe connection port and a first channel. The first hydraulic pipe connection port is opened at the bottom of the valve body. The valve body is provided with a first channel at the top of the first hydraulic pipe connection port. The first channel is communicated with the second chamber at the upper side, and the connection position between the fourth channel and the second chamber at the upper side is located below the end of the annular seat away from the second mounting seat.

[0022] Beneficial effects: When the first air source assembly of the present invention inflates the first chamber at the upper side, the bidirectional driving assembly opens the connection between the elastic sealing assembly at the upper side and the transition conduction assembly at the upper side. At the same time, the elastic sealing assembly at the lower side and the transition conduction assembly at the lower side are attached and sealed. The oil liquid of the oil inlet assembly enters into the transition conduction assembly at the upper side and the elastic sealing assembly at the upper side through the first chamber at the lower side, the sixth channel and the second chamber at the upper side, and then enters into the second oil outlet assembly to be discharged, controlling the oil discharge of the second oil outlet assembly. When the second air source assembly inflates the first chamber at the lower side, the bidirectional driving assembly opens the connection between the elastic sealing assembly at the lower side and the transition conduction assembly at the lower side. At the same time, the elastic sealing assembly at the upper side and the transition conduction assembly at the upper side are attached and sealed. The oil liquid of the oil inlet assembly enters into the transition conduction assembly at the lower side and the elastic sealing assembly at the lower side through the second chamber at the lower side, and then enters into the first oil outlet assembly to be discharged, controlling the oil inlet of the first oil outlet assembly. By controlling the oil discharge of different channels through the air inlet direction, it is convenient for actual use and has high stability. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0024] Figure 1 A three-dimensional view of a double-control valve for a machine tool that is convenient for adjustment according to the present invention Figure 1 ;

[0025] Figure 2 A front view of a double-control valve for a machine tool that is convenient for adjustment according to the present invention;

[0026] Figure 3 A left view of a double-control valve for a machine tool that is convenient for adjustment according to the present invention;

[0027] Figure 4 Is a sectional view along the Figure 3 A-A direction of Figure 1 ;

[0028] Figure 5 Is a sectional view along the Figure 3 A-A direction of Figure 2 ;

[0029] Figure 6 A schematic diagram of the gas flow direction when the first oil outlet component discharges oil;

[0030] Figure 7 A schematic diagram of the oil flow direction when the first oil outlet component discharges oil;

[0031] Figure 8 A schematic diagram of the gas flow direction when the second oil outlet component discharges oil;

[0032] Figure 9 A schematic diagram of the oil flow direction when the second oil outlet component discharges oil.

[0033] The reference numerals in the figure respectively represent:

[0034] 1. Valve body; 2. First mounting seat; 3. First air pipe interface; 4. Second air pipe interface; 5. First hydraulic pipe connection port; 6. Second hydraulic pipe connection port; 7. Third hydraulic pipe connection port; 8. First chamber; 9. First piston; 10. First spring; 11. Sealing ring; 12. Piston rod; 13. First channel; 14. Second channel; 15. Third channel; 16. Fourth channel; 17. Fifth channel; 18. Sixth channel; 19. Second spring; 20. Slide bar; 21. Horizontal groove; 22. Second mounting seat; 23. Second chamber; 24. Sphere; 25. Annular seat; 26. Seventh channel; 27. Eighth channel; 28. Ninth channel; 29. Tenth channel; 30. Push rod; 31. Conical groove. Detailed implementation manners

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0036] The present invention will be further described below with reference to the embodiments.

[0037] In some embodiments, please refer to Figures 1-9 , a dual-control valve for a machine tool that is easy to adjust, including a valve body 1:

[0038] The valve body 1 is connected with a direction adjustment component for adjusting the oil outlet direction;

[0039] The direction adjustment component includes two groups of first chambers 8, two groups of second chambers 23, a group of bidirectional drive components, two groups of transition conduction components, a group of sixth channels 18, and two groups of elastic plugging components. Two groups of first chambers 8, two groups of second chambers 23, and a group of sixth channels 18 are provided in the valve body 1. The inner ends of the first chambers 8 communicate with the inner ends of the second chambers 23. The upper and lower sides of the sixth channel 18 communicate with the second chambers 23. The connection between the sixth channel 18 and the second chamber 23 is located outside the end of the transition conduction component close to the elastic plugging component. The bidirectional drive component is installed in the first chamber 8. The transition conduction component and the elastic plugging component are both installed in the second chamber 23, and the transition conduction component is located inside the elastic plugging component;

[0040] One group of first chambers 8 is connected with a first air source component for controlling air pressure;

[0041] The other group of first chambers 8 is connected with a second air source component for controlling air pressure;

[0042] The second chamber 23 on the lower side is connected with an oil inlet component for oil inlet and a first oil outlet component for oil outlet. The connection part of the oil inlet component and the second chamber 23 is located outside the end of the transition conduction component close to the elastic plugging component, and the connection part of the first oil outlet component and the second chamber 23 is located below the end of the transition conduction component on the lower side far from the elastic plugging component.

[0043] The second chamber 23 on the upper side is connected with a second oil outlet component for oil outlet. The connection part of the second oil outlet component and the second chamber 23 is located below the end of the transition conduction component on the upper side far from the elastic plugging component;

[0044] When the first air source component inflates the first chamber 8 on the upper side, the bidirectional driving component opens the connection part between the elastic plugging component on the upper side and the transition conduction component on the upper side. At the same time, the elastic plugging component on the lower side and the transition conduction component on the lower side are fitted and plugged. The oil fluid of the oil inlet component passes through the first chamber 8 on the lower side, the sixth channel 18 and the second chamber 23 on the upper side, enters into the transition conduction component on the upper side and the elastic plugging component on the upper side, and then enters into the second oil outlet component to be discharged, controlling the oil outlet of the second oil outlet component;

[0045] When the second air source component inflates the first chamber 8 on the lower side, the bidirectional driving component opens the connection part between the elastic plugging component on the lower side and the transition conduction component on the lower side. At the same time, the elastic plugging component on the upper side and the transition conduction component on the upper side are fitted and plugged. The oil fluid of the oil inlet component passes through the second chamber 23 on the lower side, enters into the transition conduction component on the lower side and the elastic plugging component on the lower side, and then enters into the first oil outlet component to be discharged, controlling the oil inlet of the first oil outlet component.

[0046] By controlling the oil outlet of different channels through the air inlet direction, it is convenient for actual use and has high stability;

[0047] The bidirectional driving component includes two groups of first mounting seats 2, two groups of first pistons 9, two groups of first springs 10, two groups of sealing rings 11, two groups of piston rods 12 and a ninth channel 28; the two groups of first mounting seats 2 are respectively installed at the outer ends of the first chamber 8. The first piston 9 is fitted and slidably connected inside the first chamber 8. The piston rod 12 and the first spring 10 are fixedly connected in the groove opened in the first chamber 8, and the inner end of the first spring 10 is in contact with the first chamber 8. The sealing ring 11 is fixedly installed at the inner end of the second chamber 23, and the inner wall of the sealing ring 11 is in sliding connection with the piston rod 12. The end of the piston rod 12 far from the first mounting seat 2 is fixedly connected with a push rod 30. The piston rod 12 and the push rod 30 are both movable in the transition conduction component. The upper and lower sides of the ninth channel 28 are communicated with the first chamber 8, and the connection part of the ninth channel 28 and the first chamber 8 is located at the inner end of the first piston 9;

[0048] The transition conduction component includes an annular seat 25, a seventh channel 26, and a conical groove 31. The annular seat 25 is inserted and installed at the inner end of the second chamber 23. Multiple groups of seventh channels 26 are provided at the end of the annular seat 25 close to the first mounting seat 2. A conical groove 31 for cooperating with the elastic sealing component is provided at the end of the annular seat 25 away from the first mounting seat 2. The sealing ring 11 and the push rod 30 move within the annular seat 25.

[0049] The end of the annular seat 25 close to the first mounting seat 2 is in close contact with the sealing ring 11;

[0050] The elastic sealing component includes a third channel 15, a second spring 19, a slide rod 20, a transverse groove 21, a second mounting seat 22, and a sphere 24. The second mounting seat 22 is fixedly installed in the second chamber 23 by means of threaded connection. A transverse groove 21 is provided at the end of the second mounting seat 22 close to the first mounting seat 2. A slide rod 20 is fitted and slidably connected within the transverse groove 21. A second spring 19 is installed within the transverse groove provided in the second mounting seat 22, and the second spring 19 is located outside the slide rod 20. The end of the second spring 19 close to the first mounting seat 2 is in close contact with the sphere 24 through a fixedly connected sliding ring. When the push rod 30 is not in contact with the sphere 24, the sphere 24 is in close contact with the conical groove 31, and the second spring 19 is in a compressed state. Multiple groups of third channels 15 are provided at the end of the second mounting seat 22 close to the first mounting seat 2;

[0051] The first air source component includes a first air pipe interface 3 and an eighth channel 27. The first air pipe interface 3 is provided at the bottom of the valve body 1. The valve body 1 is provided with an eighth channel 27 at the top of the first air pipe interface 3, and the eighth channel 27 is connected to the upper first chamber 8, and the connection position between the eighth channel 27 and the upper first chamber 8 is located at the outer end of the first piston 9.

[0052] The second air source component includes a second air pipe interface 4 and a tenth channel 29. The second air pipe interface 4 is provided at the bottom of the valve body 1. The valve body 1 is provided with a tenth channel 29 at the top of the second air pipe interface 4, and the tenth channel 29 is connected to the lower first chamber 8, and the connection position between the tenth channel 29 and the lower first chamber 8 is located at the outer end of the first piston 9.

[0053] The oil inlet component includes a third hydraulic pipe connection port 7 and a fifth channel 17. The third hydraulic pipe connection port 7 is provided at the bottom of the valve body 1. The valve body 1 is provided with a fifth channel 17 at the top of the third hydraulic pipe connection port 7, and the fifth channel 17 is connected to the lower second chamber 23, and the connection position between the fifth channel 17 and the lower second chamber 23 is located outside the end of the annular seat 25 close to the second mounting seat 22.

[0054] The first oil outlet assembly includes a second hydraulic pipe connection port 6 and a fourth channel 16. The second hydraulic pipe connection port 6 is opened at the bottom of the valve body 1. The valve body 1 is provided with a fourth channel 16 at the top of the second hydraulic pipe connection port 6. The fourth channel 16 communicates with the second chamber 23 on the lower side, and the connection position of the fourth channel 16 and the second chamber 23 on the lower side is located below the end of the annular seat 25 away from the second mounting seat 22.

[0055] The second oil outlet assembly includes a first hydraulic pipe connection port 5 and a first channel 13. The first hydraulic pipe connection port 5 is opened at the bottom of the valve body 1. The valve body 1 is provided with a first channel 13 at the top of the first hydraulic pipe connection port 5. The first channel 13 communicates with the second chamber 23 on the upper side, and the connection position of the fourth channel 16 and the second chamber 23 on the upper side is located below the end of the annular seat 25 away from the second mounting seat 22.

[0056] Filter screens for filtering are installed in the first hydraulic pipe connection port 5, the second hydraulic pipe connection port 6, and the third hydraulic pipe connection port 7.

[0057] In some embodiments, please refer to Figures 8-9 , the gas enters the upper first chamber 8 through the first air pipe interface 3 and the eighth channel 27 of the first air source assembly to inflate. The gas in the upper first chamber 8 pushes the first piston 9 of the upper two-way drive assembly to move towards the annular seat 25. The first piston 9 drives the piston rod 12 to move, the piston rod 12 drives the push rod 30 to move, the push rod 30 pushes, the push rod 30 pushes the sphere 24 to move to open the connection between the annular seat 25 of the upper elastic sealing assembly and the sphere 24 of the upper transition conduction assembly. At the same time, the restoring force of the second spring 19 of the lower elastic sealing assembly pushes the lower sphere 24 to fit and seal with the conical groove 31 of the lower transition conduction assembly. The oil liquid enters the lower first chamber 8 through the third hydraulic pipe connection port 7 and the fifth channel 17 of the oil inlet assembly, and then enters the upper second chamber 23, the upper third channel 15, and the upper second mounting seat 22 through the sixth channel 18. It enters the annular seat 25 of the upper transition conduction assembly through the gap between the sphere 24 and the conical groove 31, and then enters the first channel 13 of the second oil outlet assembly through the seventh channel 26, and is discharged from the first hydraulic pipe connection port 5 to control the oil outlet of the second oil outlet assembly;

[0058] In some embodiments, please refer to Figures 6-7, the gas inflates the first chamber 8 on the lower side through the second tracheal interface 4 of the second gas source assembly and the tenth channel 29. The gas in the first chamber 8 on the lower side pushes the first piston 9 of the two-way drive assembly on the lower side to move towards the annular seat 25. The first piston 9 drives the piston rod 12 to move, the piston rod 12 drives the push rod 30 to move, and the push rod 30 pushes. The push rod 30 pushes the sphere 24 to move to open the connection between the annular seat 25 of the elastic sealing assembly on the lower side and the sphere 24 of the transition conduction assembly on the lower side. At the same time, the restoring force of the second spring 19 of the elastic sealing assembly on the upper side pushes the sphere 24 on the upper side to fit and seal with the conical groove 31 of the transition conduction assembly on the upper side. The oil enters the second chamber 23 on the lower side through the third hydraulic pipe connection port 7 of the oil inlet assembly and the fifth channel 17, and then enters the second mounting seat 22 on the lower side through the second chamber 23 on the lower side and the third channel 15 on the lower side. It enters the annular seat 25 of the transition conduction assembly on the lower side through the gap between the sphere 24 and the conical groove 31, then enters the fourth channel 16 of the first oil outlet assembly through the seventh channel 26, and is discharged from the second hydraulic pipe connection port 6 to control the oil inlet of the first oil outlet assembly;

[0059] By controlling the oil outlet of different channels through the intake air direction, it is convenient for actual use.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual-control valve for machine tools that is easy to adjust, comprising a valve body (1), characterized in that: The valve body (1) is connected to a direction adjustment component for adjusting the oil outlet direction; The direction adjustment component comprises two groups of first chambers (8), two groups of second chambers (23), one group of bidirectional drive components, two groups of transition conduction components, one group of sixth channels (18) and two groups of elastic blocking components. The valve body (1) is provided with two groups of first chambers (8), two groups of second chambers (23) and one group of sixth channels (18). The inner end of the first chamber (8) is communicated with the inner end of the second chamber (23). The upper and lower sides of the sixth channel (18) are communicated with the second chamber (23). The connection between the sixth channel (18) and the second chamber (23) is located outside the end of the transition conduction component close to the elastic blocking component. The bidirectional drive component is installed in the first chamber (8). The transition conduction component and the elastic blocking component are both installed in the second chamber (23), and the transition conduction component is located inside the elastic blocking component. A group of first chambers (8) are connected to a first air source assembly for controlling air pressure; Another group of first chambers (8) is connected to a second air source assembly for controlling air pressure; The second chamber (23) at the lower side is connected with an oil inlet assembly for oil inlet and a first oil outlet assembly for oil outlet, the connection between the oil inlet assembly and the second chamber (23) is located outside the end of the transition conduction assembly close to the elastic plugging assembly, and the connection between the first oil outlet assembly and the second chamber (23) is located below the end of the transition conduction assembly at the lower side away from the elastic plugging assembly; The second chamber (23) on the upper side is connected to a second oil outlet assembly for outlet oil, and the connection between the second oil outlet assembly and the second chamber (23) is located below the end of the transition conduction assembly on the upper side away from the elastic blocking assembly.

2. The easily adjustable dual-control valve for machine tools according to claim 1, characterized in that: The bidirectional drive assembly comprises two groups of first mounting seats (2), two groups of first pistons (9), two groups of first springs (10), two groups of sealing rings (11), two groups of piston rods (12) and a group of ninth channels (28); the two groups of first mounting seats (2) are respectively mounted on the outer ends of the first chamber (8); the first piston (9) is slidably connected in the first chamber (8); the piston rod (12) and the first spring (10) are fixedly connected in the groove provided in the first chamber (8); and the inner end of the first spring (10) is in contact with the first chamber. (8) is in close contact, the sealing ring (11) is fixedly installed at the inner end of the second chamber (23), and the inner wall of the sealing ring (11) is in close sliding connection with the piston rod (12), the end of the piston rod (12) away from the first mounting seat (2) is fixedly connected with a push rod (30), the piston rod (12) and the push rod (30) are both movable in the transition guide assembly, the upper and lower sides of the ninth channel (28) are in communication with the first chamber (8), and the connection between the ninth channel (28) and the first chamber (8) is located at the inner end of the first piston (9).

3. The easily adjustable dual-control valve for machine tools according to claim 2, characterized in that: The transition conduction component comprises an annular seat (25), a seventh channel (26) and a tapered groove (31). The annular seat (25) is plugged and installed at the inner end of the second chamber (23). The end of the annular seat (25) close to the first mounting seat (2) is provided with a plurality of groups of the seventh channels (26). The end of the annular seat (25) away from the first mounting seat (2) is provided with a tapered groove (31) used in conjunction with the elastic blocking component. The sealing ring (11) and the push rod (30) move in the annular seat (25).

4. The easily adjustable dual-control valve for machine tools according to claim 3, characterized in that: The end of the annular seat (25) close to the first mounting seat (2) is in close contact with the sealing ring (11).

5. The easily adjustable dual-control valve for machine tools according to claim 4, characterized in that: The elastic plugging component comprises a third channel (15), a second spring (19), a slide rod (20), a transverse groove (21), a second mounting seat (22) and a sphere (24); the second mounting seat (22) is fixedly mounted in the second chamber (23) by means of a threaded connection; the second mounting seat (22) is provided with a transverse groove (21) at an end thereof close to the first mounting seat (2); the slide rod (20) is slidably connected in the transverse groove (21); and the second mounting seat (22) is provided with a ball (24) in the transverse groove. A second spring (19) is provided, and the second spring (19) is located outside the slide rod (20). The end of the second spring (19) close to the first mounting seat (2) is in close contact with the ball (24) through a fixedly connected sliding ring. When the push rod (30) is not in contact with the ball (24), the ball (24) is in close contact with the conical groove (31), and the second spring (19) is in a compressed state. The end of the second mounting seat (22) close to the first mounting seat (2) is provided with a plurality of third channels (15).

6. The easily adjustable dual-control valve for machine tools according to claim 5, characterized in that: The first air source assembly comprises a first air pipe interface (3) and an eighth channel (27). The first air pipe interface (3) is provided at the bottom of the valve body (1). The valve body (1) is provided with an eighth channel (27) at the top of the first air pipe interface (3). The eighth channel (27) is communicated with the first chamber (8) on the upper side. The connection between the eighth channel (27) and the first chamber (8) on the upper side is located at the outer end of the first piston (9).

7. The easily adjustable dual-control valve for machine tools according to claim 6, characterized in that: The second air source assembly comprises a second air pipe interface (4) and a tenth channel (29). The second air pipe interface (4) is provided at the bottom of the valve body (1). The valve body (1) is provided with a tenth channel (29) at the top of the second air pipe interface (4). The tenth channel (29) is communicated with the first chamber (8) at the lower side. The connection between the tenth channel (29) and the first chamber (8) at the lower side is located at the outer end of the first piston (9).

8. The easily adjustable dual-control valve for machine tools according to claim 7, characterized in that: The oil inlet assembly comprises a third hydraulic pipe connection port (7) and a fifth channel (17). The third hydraulic pipe connection port (7) is provided at the bottom of the valve body (1). The valve body (1) is provided with a fifth channel (17) at the top of the third hydraulic pipe connection port (7). The fifth channel (17) is communicated with the second chamber (23) at the lower side. The position where the fifth channel (17) is connected with the second chamber (23) at the lower side is located outside the end of the annular seat (25) close to the second mounting seat (22).

9. The easily adjustable dual-control valve for machine tools according to claim 8, characterized in that: The first oil outlet assembly comprises a second hydraulic pipe connection port (6) and a fourth channel (16). The second hydraulic pipe connection port (6) is provided at the bottom of the valve body (1). The valve body (1) is provided with a fourth channel (16) at the top of the second hydraulic pipe connection port (6). The fourth channel (16) is communicated with the second chamber (23) at the lower side. The position where the fourth channel (16) is connected with the second chamber (23) at the lower side is located at the lower side of the end of the annular seat (25) away from the second mounting seat (22).

10. The easily adjustable dual-control valve for machine tools according to claim 9, characterized in that: The second oil outlet assembly comprises a first hydraulic pipe connection port (5) and a first channel (13). The first hydraulic pipe connection port (5) is provided at the bottom of the valve body (1). The valve body (1) is provided with a first channel (13) at the top of the first hydraulic pipe connection port (5). The first channel (13) is communicated with the second chamber (23) on the upper side. The position where the fourth channel (16) is connected with the second chamber (23) on the upper side is located at the lower side of the end of the annular seat (25) away from the second mounting seat (22).

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