Integral multi-way valve and machining device thereof

Abstract

The invention relates to the technical field of hydraulic transmission, and provides an integral type multi-way valve and a machining device.The integral type multi-way valve comprises an integral type valve body, a plurality of valve cavities are formed in the integral type valve body in an arrayed mode, the valve cavities are communicated through oil channels, a plurality of operating rods are installed on one side of the integral type valve body in an arrayed mode, and the operating rods are arranged on the other side of the integral type valve body. One end of the integral valve body is provided with an oil inlet communicated with a hydraulic pump, the other end of the integral valve body is provided with an oil return opening communicated with a hydraulic oil tank, and a plurality of sets of working connectors used for being connected with a hydraulic cylinder are arranged between the oil inlet and the oil return opening. A safety valve and an oil discharge valve assembly are oppositely arranged on the integral valve body and close to the oil inlet. The fixture has the characteristics of compact structure, light weight, convenience in clamping and high processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic transmission, and in particular to an integral multi-way valve and a processing device thereof. Background Art

[0002] A multi-way valve combines two or more valve blocks together to control the movement of multiple actuators. Because it can combine various valves according to the requirements of different hydraulic systems, it is widely used in construction machinery, lifting and transportation machinery and other mobile machinery that requires the operation of multiple actuators.

[0003] Most of the current multi-way valves are of segmented structure, which are combined together in a multi-piece and multi-linked manner. Although they can achieve the required functions, they are heavy, have a non-compact structure, and occupy a large space. In addition, the processing of the valve body surface is also more troublesome, requiring multiple clamping, and the processing efficiency is low. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an integrated multi-way valve and a processing device thereof, which has the characteristics of compact structure, light weight, convenient clamping and high processing efficiency.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: An integral multi-way valve comprises an integral valve body, on which a plurality of valve cavities are arranged, and the plurality of valve cavities are connected via oil passages. A plurality of operating levers are arranged and installed on one side of the integral valve body, and a valve core reset assembly is arranged and installed on the other side. An oil inlet connected to a hydraulic pump is provided at one end of the integral valve body, and an oil return port connected to a hydraulic oil tank is provided at the other end. A plurality of groups of working interfaces for connecting to a hydraulic cylinder are arranged between the oil inlet and the oil return port. A safety valve and an oil unloading valve assembly are relatively provided on the integral valve body and close to the oil inlet.

[0006] As an improved technical solution, the safety valve adopts a pilot-operated overflow valve; The oil unloading valve assembly comprises a valve core, the valve core is movably installed in the oil unloading passage of the integral valve body, the oil unloading passage is connected to the oil passage, a first spring is pressed against the valve core, and one end of the first spring away from the valve core presses against the wire plug; A conical portion is provided at one end of the valve core away from the first spring, and the conical portion forms a sealing structure with the oil unloading passage. A first sealing ring is provided on the oil unloading passage and close to the conical portion, and a second sealing ring is provided between the end of the valve core away from the conical portion and the oil unloading passage.

[0007] As an improved technical solution, the valve core is provided with a first oil unloading groove near the tapered portion, and the valve core is provided with a second oil unloading groove at one end away from the tapered portion, the second oil unloading groove is connected to the oil hole, and the second oil unloading groove is connected to the first oil unloading groove through a connecting hole; The valve core is also provided with an installation groove for installing the first spring, the installation groove is provided with a cone portion corresponding to the first spring, and the first spring is sleeved on the cone portion.

[0008] A processing device for an integral multi-way valve, the processing device comprising the integral multi-way valve, the integral multi-way valve being placed on a clamping assembly, the clamping assembly being movably mounted on a workbench through a first driving mechanism, first milling cutter devices being arranged on the workbench and on both sides of the first driving mechanism, respectively, a support frame being arranged on the workbench and close to the first milling cutter device, the support frame being arranged across the first driving mechanism, and a second milling cutter device being mounted on the support frame; A positioning component is provided on the workbench and near the placement position of the integral multi-way valve. The positioning component is movably mounted on the workbench through a second driving mechanism.

[0009] As an improved technical solution, the clamping assembly includes a base plate, which is installed on the first driving mechanism. A first fixed plate is provided on one side of the base plate, and a second fixed plate is provided on the other side. A first cylinder is installed on the second fixed plate, and a piston rod of the first cylinder passes through the second fixed plate and is installed with a clamping block. A space is formed between the clamping block and the first fixed plate for clamping and fixing the integral multi-way valve.

[0010] As an improved technical solution, a first positioning column is provided on the side of the clamping block close to the integral multi-way valve, and the first positioning column is inserted into a mounting hole set on the side wall of the integral multi-way valve. A clamping portion for clamping the integral multi-way valve is provided on the top of the clamping block, and a pressure block is provided on the side of the clamping portion close to the integral multi-way valve. The pressure block is movably installed in the mounting hole set on the clamping portion, and a second spring is compressed between the pressure block and the inner wall of the mounting hole.

[0011] As an improved technical solution, the pressing portion and the pressing block are both provided with an inclined introduction portion on one side facing the integral multi-way valve.

[0012] As an improved technical solution, the positioning assembly includes a fixing plate, which is installed on the second driving mechanism, and a double-piston cylinder is installed on the fixing plate. A stopper is installed on the piston rod of the double-piston cylinder. When the piston rod of the double-piston cylinder is extended, the stopper abuts against one side of the integral multi-way valve, and a second positioning column is relatively provided on the stopper, and the second positioning column is correspondingly arranged in correspondence with the mounting hole arranged on the side wall of the integral multi-way valve.

[0013] As an improved technical solution, the first driving mechanism includes two first support seats, the two first support seats are relatively mounted on the workbench, a first lead screw is rotatably mounted between the two first support seats, one end of the first lead screw extends to the outside of the first support seat and is transmission-connected to the first motor; A guide rod is also provided between the two first support seats. The guide rod is arranged corresponding to the first lead screw. A first fixed block is slidably mounted on the guide rod. The clamping assembly is arranged on the first fixed block. The first fixed block is threadedly connected to the first lead screw.

[0014] As an improved technical solution, the second driving mechanism includes two second support seats, the two first support seats are relatively mounted on the workbench, a second lead screw is rotatably mounted between the two first support seats, one end of the second lead screw extends to the outside of the second support seat and is transmission-connected to the second motor; A guide rail is also provided between the two second support seats. The guide rail is located at the bottom of the second lead screw. A second fixed block is slidably mounted on the guide rail. The positioning assembly is provided on the first fixed block. The first fixed block is threadedly connected to the second lead screw.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are: An integral valve body, on which a plurality of valve chambers are arranged, which are connected by oil passages. A plurality of operating levers are arranged on one side of the integral valve body, and a valve core reset assembly is arranged on the other side. An oil inlet connected to a hydraulic pump is arranged at one end of the integral valve body, and an oil return port connected to a hydraulic oil tank is arranged at the other end. A plurality of groups of working interfaces for connecting the hydraulic cylinder are arranged between the oil inlet and the oil return port. A safety valve and an oil unloading valve assembly are arranged on the integral valve body near the oil inlet. By adopting an integral valve body structure, the processing is simple, the structure is compact, and the weight is light compared to a multi-piece multi-connection structure. By arranging the safety valve and the oil unloading valve assembly near the oil inlet, the pressure loss and energy loss in the process of oil flow interruption are reduced, and negative effects such as local heating and overheating of the valve body are avoided; By designing the end of the valve core away from the first spring into a tapered portion, the tapered portion can cooperate with the oil unloading passage to form a sealing structure to prevent oil leakage under normal working conditions. By abutting against the first spring on the valve core, the first spring exerts a force on the valve core so that the valve core does not move under normal working conditions. Only when the oil pressure is higher than the set pressure value, the oil pressure pushes the valve core to compress the first spring to move, and the oil unloading passage opens to unload the oil. The force of the first spring on the valve core can be adjusted by setting a screw plug. The integral multi-way valve is placed on the clamping assembly, and the integral multi-way valve can be clamped and fixed by the clamping assembly to facilitate subsequent milling processing. The clamping assembly is movably installed on the workbench through the first driving mechanism, and the clamping assembly can be pushed to move by the first driving mechanism, thereby driving the integral multi-way valve to move synchronously. The workbench and the two sides of the first driving mechanism are respectively provided with first milling cutter devices opposite to each other, and the two sides of the integral multi-way valve can be milled by the first milling cutter device. At the same time, due to the relative arrangement of the first milling cutter devices, the forces acting on the two sides of the integral multi-way valve can be balanced. A support frame is provided on the workbench and close to the first milling cutter device, and the support frame is arranged across the first driving mechanism. The support frame is installed with a second milling cutter device, and the top of the integral multi-way valve can be milled by the second milling cutter device. A positioning component is provided on the workbench and near the placement position of the integral multi-way valve. The positioning component is movably installed on the workbench through a second driving mechanism. By setting the positioning component, the integral multi-way valve can be positioned when it is placed to avoid the integral multi-way valve being placed upside down. At the same time, the positioning component can be used to position the side of the integral multi-way valve before it is clamped by the clamping component. By setting the second driving mechanism, the position of the positioning component can be adjusted to use different sizes of integral multi-way valves.

[0016] In summary, the present invention provides an integrated multi-way valve and a processing device thereof, which have the characteristics of compact structure, light weight, convenient clamping and high processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In addition, in the drawings, the components or parts are not necessarily drawn according to the actual scale.

[0018] Figure 1 It is a structural schematic diagram of the integral valve body in the present invention; Figure 2 It is a structural schematic diagram of the oil unloading valve assembly in the present invention; Figure 3It is a structural schematic diagram of the integrated multi-way valve processing device of the present invention; Figure 4 It is a structural schematic diagram of the integrated multi-way valve processing device of the present invention from another angle; Figure 5 It is a structural schematic diagram of the clamping assembly in the present invention; Figure 6 It is a partial cross-sectional structural schematic diagram of the clamping block in the present invention; Figure 7 It is a structural schematic diagram of the positioning assembly and the second driving mechanism in the present invention; Reference numerals: 1. Integral valve body, 2. Operating lever, 3. Valve core reset assembly, 4. Oil inlet, 5. Oil return port, 6. Working interface, 7. Safety valve, 8. Oil unloading valve assembly, 801. Valve core, 8011. Conical part, 8012. First oil unloading groove, 8013. Second oil unloading groove, 8014. Connecting hole, 8015. Installation groove, 8016. Conical part, 802. First spring, 803. Screw plug, 804. First sealing ring, 805. Second sealing ring, 9. Oil hole, 10. Oil passage, 11. Clamping assembly, 1101. Bottom plate, 1102. First fixing plate, 1103. Second fixing plate, 1104. First cylinder, 1105. Clamping block, 11051. First positioning column, 11 052. Clamping part, 11053. Pressing block, 11054. Second spring, 11055. Introduction part, 12. First driving mechanism, 1201. First supporting seat, 1202. First lead screw, 1203. First motor, 1204. Guide rod, 1205. First fixed block, 13. Workbench, 14. First milling cutter device, 15. Support frame, 16. Second milling cutter device, 17. Positioning assembly, 1701. Fixed plate, 1702. Double-piston cylinder, 1703. Stop block, 1704. Second positioning column, 18. Second driving mechanism, 1801. Second supporting seat, 1802. Second lead screw, 1803. Second motor, 1804. Guide rail, 1805. Second fixed block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0022] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] like Figure 1-Figure 2 As shown, an integral multi-way valve comprises an integral valve body 1, on which a plurality of valve cavities are arranged, which are connected by oil passages 10, a plurality of operating rods 2 are arranged on one side of the integral valve body 1, and a valve core reset assembly 3 is arranged on the other side, an oil inlet 4 connected to a hydraulic pump is provided at one end of the integral valve body 1, and an oil return port 5 connected to a hydraulic oil tank is provided at the other end, and a plurality of groups of working interfaces 6 for connecting to a hydraulic cylinder are arranged between the oil inlet 4 and the oil return port 5, and a safety valve 7 and an oil unloading valve assembly 8 are relatively arranged on the integral valve body 1 and near the oil inlet 4. By adopting the structure of the integral valve body 1, the processing is simple, the structure is compact, and the weight is light compared with the multi-piece and multi-connected structure. By arranging the safety valve 7 and the oil unloading valve assembly 8 near the oil inlet 4, the pressure loss and energy loss in the process of oil flow interruption are reduced, and the negative effects such as local heating and overheating of the valve body are avoided.

[0024] like Figure 1 and Figure 2 As shown, the safety valve 7 adopts a pilot-operated overflow valve; The oil unloading valve assembly 8 includes a valve core 801, which is movably installed in the oil unloading passage 10 of the integral valve body 1, and the oil unloading passage 10 is connected to the oil passage 10. A first spring 802 is pressed against the valve core 801, and one end of the first spring 802 away from the valve core 801 is pressed against the plug 803. A certain force is applied to the valve core 801 by the first spring 802. As long as the oil pressure is higher than the applied force, the valve core 801 will compress the first spring 802 to open the oil unloading passage 10. The force applied by the first spring 802 to the valve core 801 can be adjusted by the plug 803. The end of the valve core 801 away from the first spring 802 is provided with a conical portion 8011, and the conical portion 8011 forms a sealing structure with the oil discharge passage 10. A first sealing ring 804 is provided on the oil discharge passage 10 and near the conical portion 8011. A second sealing ring 805 is provided between the end of the valve core 801 away from the conical portion 8011 and the oil discharge passage 10. By designing the end of the valve core 801 away from the first spring 802 as the conical portion 8011, the conical portion 8011 can cooperate with the oil discharge passage 10 to form a sealing structure, thereby preventing the oil discharge passage 10 from being damaged in the normal working state. In case of oil leakage, the first spring 802 is pressed against the valve core 801, and the first spring 802 applies a force to the valve core 801, so that the valve core 801 does not move during normal operation. Only when the oil pressure is higher than the set pressure value, the oil pressure pushes the valve core 801 to compress the first spring 802 to move, and the oil unloading passage 10 opens to unload the oil. The force of the first spring 802 on the valve core 801 can be adjusted by setting the wire plug 803, and the outer wall of the valve core 801 and the oil unloading passage 10 are sealed by setting the first sealing ring 804 and the second sealing ring 805.

[0025] like Figure 2 As shown, the valve core 801 is provided with a first oil unloading groove 8012 near the conical portion 8011, and the end of the valve core 801 away from the conical portion 8011 is provided with a second oil unloading groove 8013, the second oil unloading groove 8013 is connected to the oil hole 9, and the second oil unloading groove 8013 is connected to the first oil unloading groove 8012 through the connecting hole 8014. When the oil pressure is high, the oil flows directly to the oil hole 9 through the first oil unloading groove 8012, the second oil unloading groove 8013 and the oil hole 9, without contacting other parts of the valve core 801, thereby reducing the mixing of impurities; The valve core 801 is also provided with an installation groove 8015 for installing the first spring 802. The installation groove 8015 is provided with a cone 8016 corresponding to the first spring 802. The first spring 802 is sleeved on the cone 8016. The cone 8016 makes the force of the first spring 802 more balanced.

[0026] like Figure 3-Figure 7As shown, a processing device for an integral multi-way valve, the processing device includes an integral multi-way valve, the integral multi-way valve is placed on a clamping assembly 11, the integral multi-way valve can be clamped and fixed by the clamping assembly 11, so as to facilitate subsequent milling processing, the clamping assembly 11 is movably installed on a workbench 13 through a first driving mechanism 12, the clamping assembly 11 can be pushed to move by the first driving mechanism 12, and then the integral multi-way valve is driven to move synchronously, first milling cutter devices 14 are respectively arranged on the workbench 13 and on both sides of the first driving mechanism 12, the first milling cutter devices 14 can be used to mill the two sides of the integral multi-way valve, and at the same time, since the first milling cutter devices 14 are arranged relatively, the forces acting on the two sides of the integral multi-way valve can be balanced, a support frame 15 is arranged on the workbench 13 and close to the first milling cutter device 14, the support frame 15 is arranged across the first driving mechanism 12, and a second milling cutter device 16 is installed on the support frame 15, and the top of the integral multi-way valve can be milled by the second milling cutter device 16; A positioning assembly 17 is provided on the workbench 13 and near the placement position of the integral multi-way valve. The positioning assembly 17 is movably mounted on the workbench 13 by a second driving mechanism 18. By setting the positioning assembly 17, the integral multi-way valve can be positioned when it is placed to avoid the integral multi-way valve being placed upside down. At the same time, the positioning assembly 17 can be used to position the side of the integral multi-way valve before it is clamped by the clamping assembly 11. By setting the second driving mechanism 18, the position of the positioning assembly 17 can be adjusted to use different sizes of integral multi-way valves.

[0027] like Figure 3-Figure 6 As shown, the clamping assembly 11 includes a base plate 1101, which is installed on the first driving mechanism 12. A first fixed plate 1102 is provided on one side of the base plate 1101, and a second fixed plate 1103 is provided on the other side. The first fixed plate 1102 and the second fixed plate 1103 are arranged correspondingly. A first cylinder 1104 is installed on the second fixed plate 1103. The piston rod of the first cylinder 1104 passes through the second fixed plate 1103 and is installed with a clamping block 1105. A space for clamping and fixing the integral multi-way valve is formed between the clamping block 1105 and the first fixed plate 1102. The clamping block 1105 can be pushed to move by the extension of the piston rod of the first cylinder 1104. The clamping block 1105 cooperates with the first fixed plate 1102 to achieve clamping and fixing of the integral multi-way valve.

[0028] like Figure 5-Figure 6As shown, a first positioning column 11051 is provided on one side of the clamping block 1105 close to the integral multi-way valve, and the first positioning column 11051 is inserted into a mounting hole provided on the side wall of the integral multi-way valve, and the integral multi-way valve is positioned by the first positioning column 11051. In addition, a positioning convex bump is provided on one side of the first fixing plate 1102 close to the integral multi-way valve, and the positioning convex bump can be inserted into the mounting hole of the integral multi-way valve. However, the height dimension of the positioning convex bump is set small, which is convenient for the integral multi-way valve. For assembly and disassembly of the multi-way valve, a clamping portion 11052 for clamping the integral multi-way valve is provided on the top of the clamping block 1105, a pressing block 11053 is provided on the side of the clamping portion 11052 close to the integral multi-way valve, the pressing block 11053 is movably mounted in a mounting hole provided on the clamping portion 11052, a second spring 11054 is compressed between the pressing block 11053 and the inner wall of the mounting hole, and the pressing block 11053 cooperates with the base plate 1101 to achieve clamping and fixing of the integral multi-way valve.

[0029] like Figure 6 As shown, the clamping portion 11052 and the pressing block 11053 are both provided with an inclined introduction portion 11055 on one side facing the integral multi-way valve. The introduction portion 11055 facilitates the integral multi-way valve to be pressed into the bottom of the clamping portion 11052 and the pressing block 11053, and the operation is smoother.

[0030] like Figure 3-Figure 4 and Figure 7 As shown, the positioning assembly 17 includes a fixing plate 1701, which is installed on the second driving mechanism 18. A double-piston cylinder 1702 is installed on the fixing plate 1701, and a stopper 1703 is installed on the piston rod of the double-piston cylinder 1702. When the piston rod of the double-piston cylinder 1702 is extended, the stopper 1703 abuts against one side of the integral multi-way valve, and the integral multi-way valve can be blocked and limited by the stopper 1703. A second positioning column 1704 is relatively provided on the stopper 1703, and the second positioning column 1704 is corresponding to the mounting hole provided on the side wall of the integral multi-way valve. By setting the second positioning column 1704 to correspond to the mounting hole on the integral multi-way valve, the problem of placing the integral multi-way valve upside down during placement can be avoided.

[0031] like Figure 3-Figure 4 As shown, the first driving mechanism 12 includes two first support seats 1201, the two first support seats 1201 are relatively mounted on the workbench 13, a first lead screw 1202 is rotatably mounted between the two first support seats 1201 through a bearing, one end of the first lead screw 1202 extends to the outside of the first support seat 1201, and is transmission-connected to the first motor 1203; A guide rod 1204 is also provided between the two first support seats 1201. The guide rod 1204 is correspondingly arranged with the first lead screw 1202. A first fixed block 1205 is slidably installed on the guide rod 1204. The clamping assembly 11 is provided on the first fixed block 1205. The first fixed block 1205 is threadedly connected with the first lead screw 1202. The first lead screw 1202 can be driven to rotate by the first motor 1203. During the rotation of the first lead screw 1202, the first fixed block 1205 is driven to slide axially along the guide rod 1204. Since the clamping assembly 11 is provided on the first fixed block 1205, the clamping assembly 11 can be driven to move, and the integral multi-way valve is clamped on the clamping assembly 11, thereby driving the integral multi-way valve to move synchronously toward the milling cutter device, thereby realizing the milling processing of the integral multi-way valve.

[0032] like Figure 3-Figure 4 and Figure 7 As shown, the second driving mechanism 18 includes two second support seats 1801, the two first support seats 1201 are relatively installed on the workbench 13, a second lead screw 1802 is rotatably installed between the two first support seats 1201 through a bearing, one end of the second lead screw 1802 extends to the outside of the second support seat 1801, and is transmission-connected to the second motor 1803; A guide rail 1804 is also provided between the two second support seats 1801. The guide rail 1804 is located at the bottom of the second lead screw 1802. A second fixed block 1805 is slidably installed on the guide rail 1804. The positioning assembly 17 is provided on the first fixed block 1205. The first fixed block 1205 is threadedly connected to the second lead screw 1802. The second lead screw 1802 can be driven to rotate by the second motor 1803. During the rotation of the second lead screw 1802, the second fixed block 1805 is driven to move along the guide rail 1804, thereby realizing the adjustment of the position of the positioning assembly 17 to adapt to integral multi-way valves of different specifications and sizes, thereby enhancing the versatility of the device.

[0033] For ease of understanding, the working process of this embodiment is given below: like Figure 1-Figure 7As shown, first, the piston rod of the double-piston cylinder 1702 is extended and pushes the stopper 1703 to move to the set position. Then, the integral multi-way valve is placed on the bottom plate 1101 of the clamping assembly 11, and the second positioning column 1704 on the stopper 1703 corresponds to the mounting hole on the integral multi-way valve to avoid the problem of the integral multi-way valve being placed upside down. At the same time, the side wall of the integral multi-way valve abuts against the stopper 1703 to achieve side positioning. Then, the piston rod of the first cylinder 1104 is extended and pushes the clamping block 1105 to move. The clamping block 1105 and the first fixing plate 1102 work together to clamp and fix the integral multi-way valve. At the same time, the first positioning column 11051 on the clamping block 1105 is inserted into the mounting hole of the integral multi-way valve. The pressing block 11053 set on the clamping block 1105 synchronously presses and fixes the integral multi-way valve, so that the integral multi-way valve can be fixed on the clamping assembly 11. After the integral multi-way valve is fixed, the piston rod of the double-piston cylinder 1702 is shortened, driving the stopper 1703 away from the integral multi-way valve. At the same time, it drives the second positioning column 1704 to synchronously disengage from the mounting hole of the integral multi-way valve. Afterwards, the first motor 1203 is started and drives the first lead screw 1202 to rotate synchronously. During the rotation of the first lead screw 1202, it drives the clamping assembly 11 to slide axially along the guide rod 1204. At the same time, the first milling cutter device 14 and the second milling cutter device 16 are started to perform milling structures on both sides and the top of the movable integral multi-way valve, and the processing is convenient and quick.

[0034] In summary, the present invention provides an integrated multi-way valve and a processing device thereof, which have the characteristics of compact structure, light weight, convenient clamping and high processing efficiency.

[0035] It should be understood that the purpose of these embodiments is only to illustrate the present invention and is not intended to limit the protection scope of the present invention. In addition, it should also be understood that after reading the technical content of the present invention, those skilled in the art can make various changes, modifications and / or variations to the present invention, and all of these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. An integrated multi-way valve, characterized in that: It comprises an integral valve body, on which a plurality of valve cavities are arranged, and the plurality of valve cavities are connected via oil passages, a plurality of operating levers are arranged and installed on one side of the integral valve body, and a valve core reset assembly is arranged and installed on the other side, an oil inlet connected to a hydraulic pump is arranged at one end of the integral valve body, and an oil return port connected to a hydraulic oil tank is arranged at the other end, a plurality of groups of working interfaces for connecting to a hydraulic cylinder are arranged between the oil inlet and the oil return port, and a safety valve and an oil unloading valve assembly are relatively arranged on the integral valve body and close to the oil inlet.

2. The integrated multi-way valve according to claim 1, characterized in that: The safety valve adopts a pilot-operated overflow valve; The oil unloading valve assembly comprises a valve core, the valve core is movably installed in the oil unloading passage of the integral valve body, the oil unloading passage is connected to the oil passage, a first spring is pressed against the valve core, and one end of the first spring away from the valve core presses against the wire plug; A conical portion is provided at one end of the valve core away from the first spring, and the conical portion forms a sealing structure with the oil unloading passage. A first sealing ring is provided on the oil unloading passage and close to the conical portion, and a second sealing ring is provided between the end of the valve core away from the conical portion and the oil unloading passage.

3. The integrated multi-way valve according to claim 2, characterized in that: The valve core is provided with a first oil unloading groove near the tapered portion, and the valve core is provided with a second oil unloading groove at one end away from the tapered portion, the second oil unloading groove is connected to the oil hole, and the second oil unloading groove is connected to the first oil unloading groove through a connecting hole; The valve core is also provided with an installation groove for installing the first spring, the installation groove is provided with a cone portion corresponding to the first spring, and the first spring is sleeved on the cone portion.

4. A processing device for an integral multi-way valve, characterized in that: The processing device comprises an integral multi-way valve as claimed in any one of claims 1 to 3, wherein the integral multi-way valve is placed on a clamping assembly, and the clamping assembly is movably mounted on a workbench through a first driving mechanism, and first milling cutter devices are respectively arranged on the workbench and on both sides of the first driving mechanism, and a support frame is arranged on the workbench and near the first milling cutter device, and the support frame is arranged across the first driving mechanism, and a second milling cutter device is mounted on the support frame; A positioning component is provided on the workbench and near the placement position of the integral multi-way valve. The positioning component is movably mounted on the workbench through a second driving mechanism.

5. The processing device for an integrated multi-way valve according to claim 4, characterized in that: The clamping assembly includes a base plate, which is installed on the first driving mechanism. A first fixing plate is provided on one side of the base plate, and a second fixing plate is provided on the other side. A first cylinder is installed on the second fixing plate. The piston rod of the first cylinder passes through the second fixing plate and is installed with a clamping block. A space for clamping and fixing the integral multi-way valve is formed between the clamping block and the first fixing plate.

6. The processing device for an integrated multi-way valve according to claim 5, characterized in that: A first positioning column is provided on a side of the clamping block close to the integral multi-way valve, and the first positioning column is inserted into a mounting hole provided on a side wall of the integral multi-way valve. A clamping portion for clamping the integral multi-way valve is provided on the top of the clamping block, and a pressure block is provided on a side of the pressure portion close to the integral multi-way valve. The pressure block is movably installed in the mounting hole provided on the pressure portion, and a second spring is compressed between the pressure block and the inner wall of the mounting hole.

7. The processing device for an integrated multi-way valve according to claim 6, characterized in that: The pressing portion and the pressing block are both provided with inclined introduction portions on one side facing the integral multi-way valve.

8. The processing device for an integrated multi-way valve according to claim 4, characterized in that: The positioning assembly includes a fixing plate, which is installed on the second driving mechanism, and a double-piston cylinder is installed on the fixing plate. A stopper is installed on the piston rod of the double-piston cylinder. When the piston rod of the double-piston cylinder is extended, the stopper abuts against one side of the integral multi-way valve, and a second positioning column is relatively provided on the stopper, and the second positioning column is correspondingly arranged to the mounting hole provided on the side wall of the integral multi-way valve.

9. The processing device for an integrated multi-way valve according to claim 4, characterized in that: The first driving mechanism comprises two first support seats, the two first support seats are relatively mounted on the workbench, a first lead screw is rotatably mounted between the two first support seats, one end of the first lead screw extends to the outside of the first support seat and is transmission-connected to the first motor; A guide rod is also provided between the two first support seats. The guide rod is arranged corresponding to the first lead screw. A first fixed block is slidably mounted on the guide rod. The clamping assembly is arranged on the first fixed block. The first fixed block is threadedly connected to the first lead screw.

10. The processing device of the integrated multi-way valve according to claim 4, characterized in that: The second driving mechanism comprises two second support seats, the two first support seats are relatively mounted on the workbench, a second lead screw is rotatably mounted between the two first support seats, one end of the second lead screw extends to the outside of the second support seat and is transmission-connected to the second motor; A guide rail is also provided between the two second support seats. The guide rail is located at the bottom of the second lead screw. A second fixed block is slidably mounted on the guide rail. The positioning assembly is provided on the first fixed block. The first fixed block is threadedly connected to the second lead screw.

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