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

Abstract

The utility model discloses a convenient-to-adjust double-control valve for a machine tool. The convenient-to-adjust double-control valve comprises a valve body, wherein the valve body 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; by means of the mode, 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 utility model relates to control valve technical field, concretely relates to a double -control valve for machine tool convenient to adjust. BACKGROUND

[0002] The double -control valve is one -in -two -out control valve, and is often used when the machine tool processes workpieces, and the electro -hydraulic integrated control mode is widely adopted at present, however, the electro -hydraulic integrated control system is complex in design, difficult to maintain, has many faults and is easy to cause the instability of equipment operation.

[0003] Based on this, the utility model discloses a double -control valve for machine tool convenient to adjust to solve above -mentioned problem. UTILITY MODEL CONTENTS

[0004] In view of the above -mentioned shortcomings of prior art, the utility model provides a double -control valve for machine tool convenient to adjust.

[0005] To achieve the above object, the utility model is realized by the following technical scheme:

[0006] A double -control valve for machine tool convenient to adjust, including the valve body:

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

[0008] The direction adjusting assembly includes two groups of first chambers, two groups of second chambers, a group of bidirectional drive assemblies, two groups of transition conduction assemblies, a group of sixth channels and two groups of elastic plugging assemblies, two groups of first chambers, two groups of second chambers and a group of sixth channels are opened in the valve body, the inner end of the first chamber is communicated with the inner end of the second chamber, the upper and lower sides of the sixth channel are communicated with the second chamber, the connection place of the sixth channel and the second chamber is located at the outer side of the end part of the transition conduction assembly close to the elastic plugging assembly, the bidirectional drive assembly is installed in the first chamber, and the transition conduction assembly and the elastic plugging assembly are installed in the second chamber, and the transition conduction assembly is located at the inner side of the elastic plugging assembly;

[0009] A group of first chambers are connected with the first gas source assembly for controlling gas pressure;

[0010] Another group of first chambers are connected with the second gas source assembly for controlling gas pressure;

[0011] The lower second chamber is connected with the oil inlet assembly for oil inlet and the first oil outlet assembly for oil outlet, the connection place of the oil inlet assembly and the second chamber is located at the outer side of the end part of the transition conduction assembly close to the elastic plugging assembly, and the connection place of the first oil outlet assembly and the second chamber is located below the end part of the transition conduction assembly away from the elastic plugging assembly on the lower side;

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

[0013] Further, the bidirectional driving assembly comprises 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 group of ninth channels; the two groups of first mounting seats are respectively mounted on the outer ends of the first chambers, the first chambers are slidably connected with the first pistons, the recesses of the first chambers are fixedly connected with the piston rods and the first springs, the inner ends of the first springs are in contact with the first chambers, the sealing rings are fixedly mounted at the inner ends of the second chambers, the inner walls of the sealing rings are slidably connected with the piston rods, 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 movable in the transition conducting assembly, and the ninth channels are connected with the first chambers.

[0014] Further, the transition conducting assembly comprises an annular seat, seventh channels and a tapered groove; the annular seat is insertedly mounted at the inner end of the second chamber, the end of the annular seat close to the first mounting seat is provided with a plurality of seventh channels, the end of the annular seat away from the first mounting seat is provided with the tapered groove matched with the elastic plugging assembly, and the sealing ring and the push rod are movable in the annular seat.

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

[0016] Further, the elastic plugging assembly comprises third channels, a second spring, a sliding rod, a transverse groove, a second mounting seat and a ball; the second mounting seat is fixedly mounted in the second chamber in a threaded connection manner, the end of the second mounting seat close to the first mounting seat is provided with the transverse groove, the sliding rod is slidably connected in the transverse groove, the second spring is mounted in the transverse groove of the second mounting seat and located outside the sliding rod, the end of the second spring close to the first mounting seat is in contact with the ball through the fixedly connected sliding ring, the ball is in contact with the tapered groove when the push rod is not in contact with the ball, the second spring is in a compressed state, and the end of the second mounting seat close to the first mounting seat is provided with a plurality of third channels.

[0017] Further, the first gas source assembly comprises a first gas pipe interface and an eighth channel; the first gas pipe interface is provided on the bottom of the valve body, the valve body is provided with the eighth channel on the top of the first gas pipe interface, the eighth channel is connected with the first chamber on the upper side in communication, and the connection position of the eighth channel and the first chamber on the upper side is located at the outer end of the first piston.

[0018] Further, the second air source assembly comprises a second air pipe interface and a tenth channel, the second air pipe interface is arranged on the bottom of the valve body, the tenth channel is arranged on the top of the second air pipe interface, and the tenth channel is connected with the first cavity on the lower side; and the connection position of the tenth channel and the first cavity on the lower side is located at the outer end of the first piston.

[0019] Further, the oil inlet assembly comprises a third hydraulic pipe connecting port and a fifth channel, the third hydraulic pipe connecting port is arranged on the bottom of the valve body, the fifth channel is arranged on the top of the third hydraulic pipe connecting port, the fifth channel is connected with the second cavity on the lower side, and the connection position of the fifth channel and the second cavity on the lower side is located at the outer side of the end of the annular seat close to the second mounting seat.

[0020] Further, the first oil outlet assembly comprises a second hydraulic pipe connecting port and a fourth channel, the second hydraulic pipe connecting port is arranged on the bottom of the valve body, the fourth channel is arranged on the top of the second hydraulic pipe connecting port, the fourth channel is connected with the second cavity on the lower side, and the connection position of the fourth channel and the second cavity on the lower side is located at the lower side of the end of the annular seat away from the second mounting seat.

[0021] Further, the second oil outlet assembly comprises a first hydraulic pipe connecting port and a first channel, the first hydraulic pipe connecting port is arranged on the bottom of the valve body, the first channel is arranged on the top of the first hydraulic pipe connecting port, the first channel is connected with the second cavity on the upper side, and the connection position of the fourth channel and the second cavity on the upper side is located at the lower side of the end of the annular seat away from the second mounting seat.

[0022] Beneficial effects: when the first air source assembly inflates the first cavity on the upper side, the bidirectional driving assembly opens the connection position of the elastic sealing assembly on the upper side and the transition conduction assembly on the upper side, and the elastic sealing assembly on the lower side and the transition conduction assembly on the lower side are sealed and matched, the oil liquid of the oil inlet assembly enters the transition conduction assembly on the upper side and the elastic sealing assembly on the upper side through the first cavity on the lower side, the sixth channel and the second cavity on the upper side, and then enters the second oil outlet assembly to be discharged, so that the second oil outlet assembly is controlled to discharge oil; when the second air source assembly inflates the first cavity on the lower side, the bidirectional driving assembly opens the connection position of the elastic sealing assembly on the lower side and the transition conduction assembly on the lower side, and the elastic sealing assembly on the upper side and the transition conduction assembly on the upper side are sealed and matched, the oil liquid of the oil inlet assembly enters the transition conduction assembly on the lower side and the elastic sealing assembly on the lower side through the second cavity on the lower side, and then enters the first oil outlet assembly to be discharged, so that the first oil outlet assembly is controlled to discharge oil; the oil is discharged through different channels in different directions, which is convenient for actual use and has high stability. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0024] Figure 1 A double-control valve for machine tool convenient to adjust of the utility model Figure 1 ;

[0025] Figure 2 A double-control valve for machine tool convenient to adjust of the utility model

[0026] Figure 3 A double-control valve for machine tool convenient to adjust of the utility model

[0027] Figure 4 A double-control valve for machine tool convenient to adjust of the utility model Figure 3 ; Figure 1 ;

[0028] Figure 5 A double-control valve for machine tool convenient to adjust of the utility model Figure 3 ; Figure 2 ;

[0029] Figure 6 A double-control valve for machine tool convenient to adjust of the utility model

[0030] Figure 7 A double-control valve for machine tool convenient to adjust of the utility model

[0031] Figure 8 A double-control valve for machine tool convenient to adjust of the utility model

[0032] Figure 9 A double-control valve for machine tool convenient to adjust of the utility model

[0033] The numbers in the drawings represent:

[0034] 1, valve body; 2, first mounting seat; 3, first gas pipe interface; 4, second gas pipe interface; 5, first hydraulic pipe connecting port; 6, second hydraulic pipe connecting port; 7, third hydraulic pipe connecting 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, sliding rod; 21, transverse groove; 22, second mounting seat; 23, second chamber; 24, ball; 25, annular seat; 26, seventh channel; 27, eighth channel; 28, ninth channel; 29, tenth channel; 30, push rod; 31, conical groove. DETAILED DESCRIPTION

[0035] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments but not all embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

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

[0037] In some embodiments, referring to Figures 1-9 A double-control valve for machine tool convenient to adjust comprises a valve body 1:

[0038] The valve body 1 is connected with a direction adjusting assembly for adjusting the oil outlet direction of oil liquid;

[0039] The direction adjusting assembly comprises two groups of first chambers 8, two groups of second chambers 23, one group of bidirectional driving assemblies, two groups of transition conducting assemblies, one group of sixth channels 18 and two groups of elastic plugging assemblies, two groups of first chambers 8, two groups of second chambers 23 and one group of sixth channels 18 are arranged in the valve body 1, 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 position of the sixth channel 18 and the second chamber 23 is located at the outer side of the end of the transition conducting assembly close to the elastic plugging assembly, the bidirectional driving assembly is installed in the first chamber 8, the transition conducting assembly and the elastic plugging assembly are both installed in the second chamber 23, and the transition conducting assembly is located at the inner side of the elastic plugging assembly;

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

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

[0042] The lower second chamber 23 is connected with an oil inlet assembly for oil inlet and a first oil outlet assembly for oil outlet, the oil inlet assembly is connected with the second chamber 23 at the outer side of the end of the transition conducting assembly close to the elastic sealing assembly, and the first oil outlet assembly is connected with the second chamber 23 at the lower side of the end of the lower transition conducting assembly away from the elastic sealing assembly.

[0043] The upper second chamber 23 is connected with a second oil outlet assembly for oil outlet, the second oil outlet assembly is connected with the second chamber 23 at the lower side of the end of the upper transition conducting assembly away from the elastic sealing assembly;

[0044] When the first gas source assembly fills the upper first chamber 8 with gas, the bidirectional driving assembly opens the connection between the upper elastic sealing assembly and the upper transition conducting assembly, while the lower elastic sealing assembly and the lower transition conducting assembly are sealed and closed, the oil in the oil inlet assembly enters the upper transition conducting assembly and the upper elastic sealing assembly through the lower first chamber 8, the sixth channel 18 and the upper second chamber 23, and then enters the second oil outlet assembly for discharge, and the second oil outlet assembly is controlled to discharge oil.

[0045] When the second gas source assembly fills the lower first chamber 8 with gas, the bidirectional driving assembly opens the connection between the lower elastic sealing assembly and the lower transition conducting assembly, while the upper elastic sealing assembly and the upper transition conducting assembly are sealed and closed, the oil in the oil inlet assembly enters the lower transition conducting assembly and the lower elastic sealing assembly through the lower second chamber 23, and then enters the first oil outlet assembly for discharge, and the first oil outlet assembly is controlled to discharge oil.

[0046] The oil is discharged through the different channels by controlling the direction of air inlet, which is convenient for actual use and has high stability.

[0047] The bidirectional driving assembly 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 group of ninth channels 28; the two groups of first mounting seats 2 are respectively installed at the outer ends of the first chambers 8, the first pistons 9 are slidably connected in the first chambers 8, the piston rods 12 and the first springs 10 are fixedly connected in the grooves of the first chambers 8, the inner ends of the first springs 10 are in contact with the first chambers 8, the sealing rings 11 are fixedly installed at the inner ends of the second chambers 23, the inner walls of the sealing rings 11 are slidably connected with the piston rods 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 movable in the transition conducting assembly, the upper and lower sides of the ninth channel 28 are connected with the first chambers 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;

[0048] The transition conducting assembly comprises a ring-shaped seat 25, a seventh channel 26 and a tapered groove 31, the ring-shaped seat 25 is installed at the inner end of the second cavity 23, a plurality of groups of the seventh channels 26 are arranged at the end of the ring-shaped seat 25 close to the first mounting seat 2, the tapered groove 31 is arranged at the end of the ring-shaped seat 25 away from the first mounting seat 2 and is used in cooperation with the elastic sealing assembly, and the sealing ring 11 and the push rod 30 are movable in the ring-shaped seat 25.

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

[0050] The elastic sealing assembly comprises a third channel 15, a second spring 19, a sliding rod 20, a horizontal groove 21, a second mounting seat 22 and a ball 24, the second mounting seat 22 is fixedly installed in the second cavity 23 in a threaded connection mode, the horizontal groove 21 is arranged at the end of the second mounting seat 22 close to the first mounting seat 2, the sliding rod 20 is slidably connected in the horizontal groove 21, the second spring 19 is installed in the horizontal groove of the second mounting seat 22 and is located at the outer side of the sliding rod 20, the end of the second spring 19 close to the first mounting seat 2 is in contact with the ball 24 through a fixedly connected sliding ring, the ball 24 is in contact with the tapered groove 31 when the push rod 30 is not in contact with the ball 24, the second spring 19 is in a compressed state, and a plurality of groups of the third channels 15 are arranged at the end of the second mounting seat 22 close to the first mounting seat 2.

[0051] The first gas source assembly comprises a first gas pipe interface 3 and an eighth channel 27, the first gas pipe interface 3 is arranged at the bottom of the valve body 1, the eighth channel 27 is arranged at the top of the first gas pipe interface 3, the eighth channel 27 is in communication connection with the upper first cavity 8, and the connection position of the eighth channel 27 and the upper first cavity 8 is located at the outer end of the first piston 9.

[0052] The second gas source assembly comprises a second gas pipe interface 4 and a tenth channel 29, the second gas pipe interface 4 is arranged at the bottom of the valve body 1, the tenth channel 29 is arranged at the top of the second gas pipe interface 4, the tenth channel 29 is in communication connection with the lower first cavity 8, and the connection position of the tenth channel 29 and the lower first cavity 8 is located at the outer end of the first piston 9.

[0053] The oil inlet assembly comprises a third hydraulic pipe connecting port 7 and a fifth channel 17, the third hydraulic pipe connecting port 7 is arranged at the bottom of the valve body 1, the fifth channel 17 is arranged at the top of the third hydraulic pipe connecting port 7, the fifth channel 17 is in communication connection with the lower second cavity 23, and the connection position of the fifth channel 17 and the lower second cavity 23 is located at the outer side of the end of the ring-shaped seat 25 close to the second mounting seat 22.

[0054] The first oil outlet assembly comprises the second hydraulic pipe connecting port 6 and the fourth channel 16. The second hydraulic pipe connecting port 6 is arranged at the bottom of the valve body 1. The fourth channel 16 is arranged at the top of the second hydraulic pipe connecting port 6. The fourth channel 16 is communicated with the lower second chamber 23. The position where the fourth channel 16 is connected with the lower second chamber 23 is located at the lower end of the annular seat 25 away from the second mounting seat 22.

[0055] The second oil outlet assembly comprises the first hydraulic pipe connecting port 5 and the first channel 13. The first hydraulic pipe connecting port 5 is arranged at the bottom of the valve body 1. The first channel 13 is arranged at the top of the first hydraulic pipe connecting port 5. The first channel 13 is communicated with the upper second chamber 23. The position where the fourth channel 16 is connected with the upper second chamber 23 is located at the lower end of the annular seat 25 away from the second mounting seat 22.

[0056] The filter screen for filtering is arranged in the first hydraulic pipe connecting port 5, the second hydraulic pipe connecting port 6 and the third hydraulic pipe connecting port 7.

[0057] In some embodiments, referring to Figures 8-9 The gas enters the upper first chamber 8 through the first gas pipe interface 3 of the first gas source assembly and the eighth channel 27. The gas in the upper first chamber 8 pushes the first piston 9 of the upper bidirectional driving 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 ball 24 to move to open the connection between the annular seat 25 of the upper elastic sealing assembly and the ball 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 ball 24 and the conical groove 31 of the lower transition conduction assembly to adhere and seal. The oil enters the lower first chamber 8 through the third hydraulic pipe connecting port 7 of the oil inlet assembly and the fifth channel 17. Then the oil enters the upper transition conduction assembly through the gap between the ball 24 and the conical groove 31. Then the oil enters the first channel 13 of the second oil outlet assembly through the seventh channel 26. Then the oil is discharged from the first hydraulic pipe connecting port 5 to control the oil outlet of the second oil outlet assembly.

[0058] In some embodiments, referring to Figures 6-7, the gas inflates the lower first chamber 8 through the second gas tube interface 4 of the second gas source assembly and the tenth channel 29, the gas in the lower first chamber 8 pushes the first piston 9 of the lower bidirectional driving 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 ball 24 to move to open the connection between the annular seat 25 of the lower elastic sealing assembly and the ball 24 of the lower transition conducting assembly, at the same time, the second spring 19 of the upper elastic sealing assembly restores the force to push the upper ball 24 and the conical groove 31 of the upper transition conducting assembly to fit and seal, the oil enters the lower second chamber 23 through the third hydraulic tube connecting port 7 of the oil inlet assembly and the fifth channel 17, then enters the lower second mounting seat 22 through the lower second chamber 23 and the lower third channel 15, enters the annular seat 25 of the lower transition conducting assembly through the gap between the ball 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 tube connecting port 6 to control the oil inlet of the first oil outlet assembly.

[0059] Different channels discharge oil through the air inlet direction control, which is convenient for actual use.

[0060] The above examples are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part 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 utility model.

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 direction of oil flow; The directional adjustment assembly includes two sets of first chambers (8), two sets of second chambers (23), a bidirectional drive assembly, two sets of transition conduction assemblies, a sixth channel (18), and two sets of elastic sealing assemblies. The valve body (1) has two sets of first chambers (8), two sets of second chambers (23), and a sixth channel (18). The inner end of the first chamber (8) is connected to the inner end of the second chamber (23). The upper and lower sides of the sixth channel (18) are connected to the second chamber (23). The connection between the sixth channel (18) and the second chamber (23) is located on the outer side of the end of the transition conduction assembly near the elastic sealing assembly. The bidirectional drive assembly is installed in the first chamber (8). The transition conduction assembly and the elastic sealing assembly are both installed in the second chamber (23), and the transition conduction assembly is located inside the elastic sealing assembly. A first chamber (8) is connected to a first air source assembly for controlling air pressure; Another set of first chambers (8) is connected to a second air source assembly for controlling air pressure; The lower second chamber (23) is connected to 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 on the outer side of the end of the transition conduction assembly near the elastic sealing assembly. The connection between the first oil outlet assembly and the second chamber (23) is located below the end of the lower transition conduction assembly away from the elastic sealing assembly. The upper second chamber (23) is connected to a second oil outlet assembly for oil outlet, and the connection between the second oil outlet assembly and the second chamber (23) is located below the end of the upper transition conduction assembly away from the elastic sealing assembly.

2. The easily adjustable dual-control valve for machine tools according to claim 1, characterized in that, The bidirectional drive assembly includes two sets of first mounting seats (2), two sets of first pistons (9), two sets of first springs (10), two sets of sealing rings (11), two sets of piston rods (12), and a set of ninth channels (28). The two sets of first mounting seats (2) are respectively installed on the outer end of the first chamber (8). The first pistons (9) are slidably connected to the first chamber (8). The piston rods (12) and the first springs (10) are fixedly connected in the grooves opened in the first chamber (8), and the inner end of the first springs (10) is connected to 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 close contact with the piston rod (12). The piston rod (12) is fixedly connected to the end of the first mounting seat (2) away from the piston rod (12). The piston rod (12) and the push rod (30) are both in the transition conduction assembly. The upper and lower sides of the ninth channel (28) are connected to the first chamber (8). 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 assembly 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 sets of seventh channels (26) are opened at the end of the annular seat (25) near the first mounting seat (2). A conical groove (31) for use with the elastic sealing assembly is opened 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).

4. The easily adjustable dual-control valve for machine tools according to claim 3, characterized in that, The end of the annular seat (25) near the first mounting seat (2) is in 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 sealing assembly includes a third channel (15), a second spring (19), a slide rod (20), a transverse groove (21), a second mounting base (22), and a ball (24). The second mounting base (22) is fixedly installed in the second chamber (23) by a threaded connection. The end of the second mounting base (22) near the first mounting base (2) has a transverse groove (21). The slide rod (20) is slidably connected in the transverse groove (21). The ball (24) is installed in the transverse groove of the second mounting base (22). There is a second spring (19), and the second spring (19) is located outside the slide rod (20). The end of the second spring (19) near the first mounting base (2) is in contact with the ball (24) through a fixedly connected slip ring. When the push rod (30) is not in contact with the ball (24), the ball (24) is in contact with the conical groove (31), and the second spring (19) is in a compressed state. The end of the second mounting base (22) near the first mounting base (2) has multiple sets 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 includes a first air pipe interface (3) and an eighth channel (27). The first air pipe interface (3) is located at the bottom of the valve body (1). The valve body (1) has an eighth channel (27) at the top of the first air pipe interface (3). The eighth channel (27) is connected to the upper first chamber (8). The connection between the eighth channel (27) and the upper first chamber (8) 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 includes a second air pipe interface (4) and a tenth channel (29). The second air pipe interface (4) is located at the bottom of the valve body (1). The valve body (1) has a tenth channel (29) at the top of the second air pipe interface (4). The tenth channel (29) is connected to the lower first chamber (8). The connection between the tenth channel (29) and the lower first chamber (8) 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 includes a third hydraulic pipe connection port (7) and a fifth channel (17). The third hydraulic pipe connection port (7) is located at the bottom of the valve body (1). The valve body (1) has a fifth channel (17) at the top of the third hydraulic pipe connection port (7). The fifth channel (17) is connected to the lower second chamber (23). The position where the fifth channel (17) is connected to the lower second chamber (23) is located on the outer side of the end of the annular seat (25) near 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 includes a second hydraulic pipe connection port (6) and a fourth channel (16). The second hydraulic pipe connection port (6) is located at the bottom of the valve body (1). The valve body (1) has a fourth channel (16) at the top of the second hydraulic pipe connection port (6). The fourth channel (16) communicates with the lower second chamber (23). The position where the fourth channel (16) connects with the lower second chamber (23) is located on 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 includes a first hydraulic pipe connection port (5) and a first channel (13). The first hydraulic pipe connection port (5) is located at the bottom of the valve body (1). The valve body (1) has a first channel (13) at the top of the first hydraulic pipe connection port (5). The first channel (13) communicates with the upper second chamber (23). The fourth channel (16) is located at the lower end of the annular seat (25) away from the second mounting seat (22).

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