Clamping device, hydraulic clamping system, control method and device

Abstract

The present application provides a clamping device, a hydraulic clamping system, a control method and an apparatus, which are provided by setting a machine tool guide rail mounting carrier, on which a plurality of hydraulic execution branches are provided; a rolling guide rail guiding component, on which a plurality of lateral force-bearing parts are provided, each hydraulic execution branch corresponds to a lateral force-bearing part, and each hydraulic execution branch is used to provide a load for the lateral force-bearing part so that the rolling guide rail guiding component clamps the guide rail of the machine tool on the machine tool. The use of hydraulic clamping can avoid the problem of reduced straightness of the guide rail of the machine tool due to deformation of the wedge structure.

Description

Technical Field

[0001] The present application relates to the technical field of machine tool equipment of the system, and in particular to a clamping device, a hydraulic clamping system, a control method and a device. Background Art

[0002] The common way to adjust the accuracy of the current machine tool linear guide is to use a wedge structure. Figure 1 A schematic diagram of the installation structure of a wedge structure and a linear guide provided in the related art is shown in FIG. Figure 1 As shown, the wedge structure 100 is set on one side of the linear guide rail 200. The accuracy of the linear guide rail 200 is adjusted by adjusting the wedge structure 100. After the accuracy adjustment is completed, the wedge structure 100 is fixed by screws, and then the mounting screws of the linear guide rail 20 are tightened to complete the assembly. However, after the machine tool has been running for a long time, the screws of the wedge structure 100 are prone to loosening, and the structural parts nearby (such as the wedge structure and the guide rail structural parts) are also prone to deformation, resulting in a decrease in the straightness of the linear guide rail 200. When it is reduced to a level that cannot meet the processing requirements, it is necessary to disassemble other components connected to the guide rail and adjust the accuracy of the machine tool guide rail, which is relatively time-consuming. In addition, in the current machine tool design, it is impossible to grasp the straightness changes of the machine tool guide rail in real time. When the straightness changes, it may cause defects in the processed workpiece and cause production losses. Summary of the Invention

[0003] In response to the above problems, the present application provides a clamping device, a hydraulic clamping system, a control method and a device, which adopts a hydraulic clamping method to avoid the problem of reduced straightness of the guide rail of the machine tool caused by deformation of the wedge structure.

[0004] The present application provides a clamping device, comprising:

[0005] A machine tool guide rail mounting carrier, wherein the machine tool guide rail mounting carrier is provided with a plurality of hydraulic execution branches, and the hydraulic execution branches are connected to the hydraulic system;

[0006] A rolling guide rail guiding component is provided with a plurality of lateral force-bearing parts, each hydraulic execution branch corresponds to a lateral force-bearing part, and each hydraulic execution branch is used to provide a load for the lateral force-bearing part so that the rolling guide rail guiding component clamps the guide rail of the machine tool on the machine tool.

[0007] In some embodiments, the machine tool guide rail mounting carrier is provided with two mounting carrier main oil holes, multiple groups of hydraulic branch holes connected to the mounting carrier main oil holes, and mounting accessories corresponding to each group of hydraulic branch holes. When the mounting accessories corresponding to each group of hydraulic branch holes are installed in the hydraulic branch holes, they are used to assemble the mounting carrier main oil holes and the hydraulic branch holes into a hydraulic execution branch.

[0008] In some embodiments, the hydraulic branch hole includes: an oil chamber plug hole with an oil chamber block, an execution oil chamber, a single-hole plunger mounting hole with a single-hole plunger, and a double-hole plunger mounting hole with a double-hole plunger, which are arranged in sequence; the mounting accessories include: an oil chamber block, a cavity front sealing head, a hydraulic piston, a cavity rear sealing head, a double-hole plunger, and a single-hole plunger. The oil chamber block is used to cut off the main oil hole of the mounting carrier, and the two ends of the execution oil chamber are respectively provided with a cavity front sealing head and a cavity rear sealing head. A hydraulic piston is provided in the execution oil chamber, and the hydraulic piston can extend out of the execution oil chamber front sealing head. The double-hole plunger is used to connect the two main oil holes of the mounting carrier with the hydraulic system, and the single-hole plunger is used to connect the main oil hole of any one mounting carrier with the hydraulic system. The hydraulic execution branch includes a pipeline respectively connected to the execution oil chamber of each group of hydraulic branch holes, and the hydraulic piston in each hydraulic execution branch is used to provide a load for the lateral force-bearing part.

[0009] In some embodiments, the lateral force-bearing portion includes: a lateral force-bearing hole, a hydraulic piston in each hydraulic execution branch corresponds to a lateral force-bearing hole, and the hydraulic piston in each hydraulic execution branch is used to provide load for the corresponding lateral force-bearing hole.

[0010] In some embodiments, the double-hole plunger includes: a double-hole plunger main oil hole, a double-hole plunger first oil guide hole, a double-hole plunger second oil guide hole and a double-hole plunger adjustment buckle. The double-hole plunger main oil hole is arranged along the axial direction of the double-hole plunger, and the double-hole plunger first oil guide hole and the double-hole plunger second oil guide hole are arranged along the radial direction of the double-hole plunger. The double-hole plunger main oil hole is connected with the double-hole plunger first oil guide hole and the double-hole plunger second oil guide hole. The double-hole plunger first oil guide hole and the double-hole plunger second oil guide hole are used to be connected with the main oil holes of two mounting carriers. The double-hole plunger main oil hole of the double-hole plunger is used to be connected with the hydraulic system. The double-hole plunger adjustment buckle is used to be clamped on the machine tool guide rail mounting carrier to connect the double-hole plunger first oil guide hole and the double-hole plunger second oil guide hole with the main oil hole of the mounting carrier.

[0011] In some embodiments, the single-hole plunger includes: a single-hole plunger main oil hole, a single-hole plunger oil guide hole and a single-hole plunger adjustment buckle. The single-hole plunger main oil hole is arranged along the axial direction of the single-hole plunger, and the single-hole plunger oil guide hole is arranged along the radial direction of the single-hole plunger. The single-hole plunger oil guide hole is used to connect any one of the main oil holes of the mounting carrier and is used to communicate with the execution oil chamber. The single-hole plunger main oil hole of the single-hole plunger is connected to the hydraulic system, the single-hole plunger main oil hole is connected to the single-hole plunger oil guide hole, and the single-hole plunger adjustment buckle is used to be clamped on the machine tool guide rail mounting carrier to connect the single-hole plunger oil guide hole with the main oil hole of the mounting carrier.

[0012] An embodiment of the present application provides a hydraulic clamping system, comprising: a clamping device as described in any one of the above items and a hydraulic system, wherein the hydraulic system is used to control each hydraulic execution branch to provide a load to the lateral force-bearing part corresponding to each hydraulic execution branch.

[0013] In some embodiments, the hydraulic execution branch includes an execution oil chamber, and a hydraulic piston is provided in the execution oil chamber. The hydraulic system includes: an oil tank, a hydraulic pump, a main oil circuit and multiple branch oil circuits. The oil tank is connected to the hydraulic pump, the hydraulic pump is connected to the main oil circuit, the main oil circuit is connected to each branch oil circuit, and each branch oil circuit is connected to a hydraulic execution branch. Each branch oil circuit is used to control the movement direction of the hydraulic piston of the execution oil chamber in each hydraulic execution branch, so that the hydraulic piston of each execution oil chamber provides a load for the lateral force-bearing part corresponding to each hydraulic execution branch.

[0014] In some embodiments, the branch oil circuit includes: a one-way valve and a three-position four-way solenoid valve. One end of the one-way valve is connected to the main oil circuit, and the other end of the one-way valve is connected to the three-position four-way solenoid valve. The other end of the three-position four-way solenoid valve is connected to the hydraulic execution branch circuit. The three-position four-way solenoid valve is used to control the hydraulic pressure in the execution oil chamber to control the movement direction of the hydraulic piston.

[0015] In some embodiments, the hydraulic clamping system further comprises:

[0016] A pressure sensor is used to detect the hydraulic pressure in the execution oil chamber of each hydraulic execution branch.

[0017] An embodiment of the present application provides a control method, which is applied to any of the above-mentioned hydraulic clamping systems, and the method includes:

[0018] Obtaining the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch;

[0019] Comparing the current hydraulic pressure of the hydraulic oil in the execution oil chamber of each hydraulic execution branch with the pressure threshold corresponding to each hydraulic execution branch to obtain a comparison result;

[0020] Based on the comparison results corresponding to each hydraulic execution branch, each branch oil circuit is controlled to change the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch, so that the difference between the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch and the pressure threshold corresponding to each hydraulic execution branch is less than the error threshold, wherein, when the difference between the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch and the pressure threshold corresponding to each hydraulic execution branch is less than the error threshold, the straightness of the guide rail of the machine tool meets the straightness requirement.

[0021] In some embodiments, the hydraulic execution branch includes an execution oil chamber, and a hydraulic piston is provided in the execution oil chamber. Controlling each branch oil circuit to change the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch based on the comparison results corresponding to each hydraulic execution branch includes:

[0022] When the comparison result corresponding to the hydraulic execution branch indicates that the absolute value of the difference between the current hydraulic pressure in the execution oil chamber of the hydraulic execution branch and the corresponding pressure threshold is greater than the error threshold, the branch oil circuit is controlled to pressurize or depressurize the hydraulic pressure of the corresponding execution oil chamber, wherein when the branch oil circuit pressurizes the hydraulic pressure of the corresponding execution oil chamber, the hydraulic piston in the execution oil chamber extends, and when the branch oil circuit depressurizes the hydraulic pressure of the corresponding execution oil chamber, the hydraulic piston retracts;

[0023] When the comparison result corresponding to the hydraulic execution branch indicates that the absolute value of the difference between the current hydraulic pressure of the hydraulic execution branch and the corresponding pressure threshold is less than the error threshold, the control branch oil circuit maintains the hydraulic pressure of the corresponding execution oil chamber.

[0024] An embodiment of the present application provides a control device, which is applied to any of the above-mentioned hydraulic clamping systems, including:

[0025] An acquisition module, used to acquire the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch;

[0026] a comparison module, configured to compare the current hydraulic pressure of the hydraulic oil in the execution oil chamber of each hydraulic execution branch with the pressure threshold corresponding to each hydraulic execution branch to obtain a comparison result;

[0027] A control module is used to control each branch oil circuit to change the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch based on the comparison results corresponding to each hydraulic execution branch, so that the difference between the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch and the pressure threshold corresponding to each hydraulic execution branch is less than the error threshold, wherein the difference between the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch and the pressure threshold corresponding to each hydraulic execution branch is less than the error threshold.

[0028] An embodiment of the present application provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, any one of the above methods is executed.

[0029] An embodiment of the present application provides a control system, characterized in that it includes: the electronic device described above and any one of the hydraulic clamping systems described above.

[0030] An embodiment of the present application provides a machine tool, including the control system described above.

[0031] An embodiment of the present application provides a storage medium, which stores a computer program that can be executed by one or more processors and can be used to implement any of the control methods described above.

[0032] The present application provides a clamping device, a hydraulic clamping system, a control method and an apparatus, which are provided by setting a machine tool guide rail mounting carrier, on which a plurality of hydraulic execution branches are provided; a rolling guide rail guiding component, on which a plurality of lateral force-bearing parts are provided, each hydraulic execution branch corresponds to a lateral force-bearing part, and each hydraulic execution branch is used to provide a load for the lateral force-bearing part so that the rolling guide rail guiding component clamps the guide rail of the machine tool on the machine tool. The use of hydraulic clamping can avoid the problem of reduced straightness of the guide rail of the machine tool due to deformation of the wedge structure when a wedge structure is used in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Hereinafter, the present application will be described in more detail based on embodiments with reference to the accompanying drawings.

[0034] Figure 1 A schematic diagram of an installation structure of a wedge-shaped structure and a linear guide provided in the related art;

[0035] Figure 2 A schematic structural diagram of a clamping device provided in an embodiment of the present application;

[0036] Figure 3 A schematic structural diagram of a clamping device provided in an embodiment of the present application;

[0037] Figure 4 A schematic diagram of the installation of related components provided in an embodiment of the present application;

[0038] Figure 5 A schematic structural diagram of a double-hole plunger provided in an embodiment of the present application;

[0039] Figure 6 A schematic structural diagram of a single-hole plunger provided in an embodiment of the present application;

[0040] Figure 7 A schematic structural diagram of a lateral force-bearing portion provided in an embodiment of the present application;

[0041] Figure 8 A schematic structural diagram of a hydraulic system provided in an embodiment of the present application;

[0042] Figure 9 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application;

[0043] Figure 10 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0044] In the drawings, like components are given like reference numerals, and the drawings are not drawn to scale.

[0045] Explanation of symbols:

[0046] 100, wedge-shaped structure; 200, linear guide; 1, machine tool guide rail mounting carrier; 101, mounting carrier main oil hole; 102, oil chamber plug hole; 103, actuator oil chamber; 104, single-hole plunger mounting hole; 105, double-hole plunger mounting hole; 2, rolling guide guide component; 21, guide rail lateral force hole; 3, double-hole plunger; 4, single-hole plunger; 5, hydraulic piston; 6, cavity rear sealing head; 7, cavity front sealing head; 8, Oil chamber partition plug; 31. First oil guide hole of double-hole plunger; 32. Main oil hole of double-hole plunger; 33. Adjusting buckle of double-hole plunger; 34. Second oil guide hole of double-hole plunger; 41. Oil guide hole of single-hole plunger; 42. Adjusting buckle of single-hole plunger; 43. Main oil hole of single-hole plunger; 9. Pressure relay; 11. Three-position four-way solenoid valve; 12. One-way valve; 13. Hydraulic pump; 14. Oil tank; 15. Main oil circuit; 16. Branch oil circuit; 17. Overflow valve. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limiting this application. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0048] In the following description, reference is made to “some embodiments”, which describes a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0049] If similar descriptions of "first\second\third" appear in the application documents, the following explanation will be added. In the following description, the terms "first\second\third" are only used to distinguish similar objects and do not represent a specific order for the objects. It can be understood that "first\second\third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0051] Based on the problems existing in the related art, the embodiment of the present application provides a clamping device. Figure 2 A schematic structural diagram of a clamping device provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, the clamping device includes: a machine tool guide rail mounting carrier 1 and a rolling guide rail guiding component 2, the machine tool guide rail mounting carrier 1 is provided with a plurality of hydraulic execution branches, and the hydraulic execution branches are connected to the hydraulic system; the rolling guide rail guiding component 2 is provided with a plurality of lateral force-bearing parts, each hydraulic execution branch corresponds to a lateral force-bearing part, and each hydraulic execution branch is used to provide a load for the lateral force-bearing part so that the rolling guide rail guiding component 2 clamps the guide rail of the machine tool on the machine tool.

[0052] In the embodiment of the present application, the number of hydraulic execution branches and lateral force-bearing parts can be set based on the size of the guide rails of the machine tool. The larger the guide rails, the greater the number that can be set.

[0053] In the embodiment of the present application, the rolling guide rail guide component installed on the machine tool guide rail carrier has a straightness requirement. The straightness of the rolling guide rail guide component can be adjusted. After the adjustment is completed, the rolling guide rail guide component is locked, and then the machine tool guide rail is assembled to complete the assembly.

[0054] The clamping device provided in the embodiment of the present application is provided with a machine tool guide rail mounting carrier, and a plurality of hydraulic execution branches are provided on the machine tool guide rail mounting carrier; a rolling guide rail guiding component, and a plurality of lateral force-bearing parts are provided on the rolling guide rail guiding component, each hydraulic execution branch corresponds to a lateral force-bearing part, and each hydraulic execution branch is used to provide a load for the lateral force-bearing part so that the rolling guide rail guiding component clamps the guide rail of the machine tool on the machine tool. The use of hydraulic clamping can avoid the problem of reduced straightness of the guide rail of the machine tool due to deformation of the wedge structure when a wedge structure is used in the prior art.

[0055] In an embodiment of the present application, the machine tool guide rail mounting carrier is provided with two mounting carrier main oil holes, multiple groups of hydraulic branch holes connected to the mounting carrier main oil holes, and mounting accessories corresponding to each group of hydraulic branch holes. When the mounting accessories corresponding to each group of hydraulic branch holes are installed in the hydraulic branch holes, they are used to assemble the mounting carrier main oil holes and the hydraulic branch holes into a hydraulic execution branch.

[0056] In an embodiment of the present application, the mounting accessory is also used to communicate with the hydraulic system, so that the hydraulic execution branch and the hydraulic system form a hydraulic circuit.

[0057] In the embodiment of the present application, the hydraulic branch hole includes: an oil chamber plug hole, an execution oil chamber, a single-hole plunger mounting hole, and a double-hole plunger mounting hole arranged in sequence; the mounting accessories include: an oil chamber block, a cavity front sealing head, a hydraulic piston, a cavity rear sealing head, a double-hole plunger and a single-hole plunger; the oil chamber plug hole is installed with an oil chamber block, and the oil chamber block is used to cut off the main oil hole of the mounting carrier, and the two ends of the execution oil chamber are respectively provided with a cavity front sealing head and a cavity rear sealing head, and a hydraulic piston is provided in the execution oil chamber. The hydraulic piston can extend out of the front sealing head of the actuator oil chamber body, and the double-hole plunger mounting hole is installed with a double-hole plunger, and the double-hole plunger is used to connect the two main oil holes of the mounting carrier with the hydraulic system. The single-hole plunger mounting hole is installed with a single-hole plunger, and the single-hole plunger is used to connect the main oil hole of any mounting carrier with the hydraulic system, wherein the pipeline connected to the actuator oil chamber of each group of hydraulic branch holes constitutes a hydraulic actuator branch, and the hydraulic piston in each hydraulic actuator branch is used to provide load for the lateral force-bearing part.

[0058] In some embodiments, Figure 3 This is a schematic structural diagram of a clamping device provided in an embodiment of the present application. Figure 4 This is a schematic diagram of the installation of related components provided in an embodiment of the present application. Figure 5 This is a schematic structural diagram of a double-hole plunger provided in an embodiment of the present application. Figure 6 A schematic diagram of the structure of a single-hole plunger provided in an embodiment of the present application is shown in FIG. Figures 3 to 6As shown, the hydraulic branch hole includes: an oil chamber plug hole 102, an execution oil chamber 103, a double-hole plunger mounting hole 105 and a single-hole plunger mounting hole 104 arranged in sequence, and the mounting accessories include: an oil chamber block 8, a cavity front sealing head 7, a hydraulic piston 5, a cavity rear sealing head 6, a double-hole plunger 3 and a single-hole plunger 4, and the oil chamber plug hole 102, the execution oil chamber 103, the single-hole plunger mounting hole 104, and the double-hole plunger mounting hole 105 pass through the machine tool guide rail mounting carrier 1 and is connected to the main oil hole 101 of the mounting carrier; the oil chamber plug hole 102 is installed with an oil chamber block 8, which is used to cut off the main oil hole 101 of the mounting carrier, and a cavity front sealing head 7 is provided at one end of the execution oil chamber 103. A hydraulic piston 5 is provided in the execution oil chamber 103, and the hydraulic piston 5 can extend out of one end of the execution oil chamber 103, and a cavity rear sealing head 6 is provided at the other end of the execution oil chamber 103. The cavity front sealing head 7 and the cavity rear sealing head 6 will execute Both ends of the oil chamber 103 are closed, and the double-hole plunger mounting hole 105 is installed with a double-hole plunger 3. The double-hole plunger first oil guide hole 31 and the double-hole plunger second oil guide hole 34 of the double-hole plunger 3 are used to communicate with the two mounting carrier main oil holes 101 and to communicate with the execution oil chamber 103. The double-hole plunger main oil hole 32 of the double-hole plunger 3 is used to communicate with the hydraulic system. The double-hole plunger main oil hole 32 is connected with the double-hole plunger first oil guide hole 31 and the double-hole plunger second oil guide hole 34. A single-hole plunger 4 is installed in the single-hole plunger mounting hole 104. The single-hole plunger oil guide hole 41 of the single-hole plunger 4 is used to connect with the main oil hole 101 of the mounting carrier away from one end of the double-hole plunger main oil hole and is used to communicate with the execution oil chamber 103. The single-hole plunger main oil hole 43 of the single-hole plunger 4 is connected with the hydraulic system, and the single-hole plunger main oil hole 43 is connected with the single-hole plunger oil guide hole 41. Among them, the pipeline connected with the execution oil chamber of each group of hydraulic branch holes constitutes a hydraulic execution branch.

[0059] In an embodiment of the present application, the two main oil holes of the mounting carrier can be arranged along the length direction of the machine tool guide rail mounting carrier, while the oil chamber partition plug hole 102, the execution oil chamber 103, the single-hole plunger mounting hole 104 and the double-hole plunger mounting hole 105 can be arranged perpendicular to the length direction.

[0060] Figure 7 A schematic diagram of the structure of a lateral force-bearing portion provided in an embodiment of the present application is shown in FIG. Figure 7 As shown, the lateral force-bearing part includes: a lateral force-bearing hole 21 , and the hydraulic piston 5 in each hydraulic execution branch corresponds to a lateral force-bearing hole 21 , and the hydraulic piston 5 in each hydraulic execution branch is used to provide load for the corresponding lateral force-bearing hole 21 .

[0061] In an embodiment of the present application, hydraulic oil can be input into the main oil hole of the double-hole plunger through the hydraulic system. By blocking the oil chamber, the pipeline between the two oil chamber blockages forms a hydraulic execution branch, and then the hydraulic oil can be output from the main oil hole of the single-hole plunger, thereby connecting with the hydraulic system.

[0062] The hydraulic execution branch may include: a circuit formed by a double-hole plunger 3, a single-hole plunger 4, a hydraulic piston 5, a cavity rear sealing head 6, a cavity front sealing head 7, and a pipeline sealed by an oil chamber partition plug 8.

[0063] In some embodiments, see Figure 5 The double-hole plunger 3 includes: a double-hole plunger main oil hole 32, a double-hole plunger first oil guide hole 31, a double-hole plunger second oil guide hole 34 and a double-hole plunger adjusting buckle 33. The double-hole plunger main oil 32 is arranged along the axial direction of the double-hole plunger 3, and the double-hole plunger first oil guide hole 31 and the double-hole plunger second oil guide hole 34 are arranged along the radial direction of the double-hole plunger 3. The double-hole plunger main oil hole 32 is connected with the double-hole plunger first oil guide hole 31, and the double-hole plunger first oil guide hole 31 and the double-hole plunger second oil guide hole 34 are used to communicate with the two mounting carrier main oil holes. The double-hole plunger main oil hole 32 of the double-hole plunger is used to communicate with the hydraulic system, and the double-hole plunger adjusting buckle 33 is used to be clamped on the machine tool guide rail mounting carrier 1 to connect the double-hole plunger first oil guide hole 31 and the double-hole plunger second oil guide hole 34 with the mounting carrier main oil hole 101.

[0064] In some embodiments, see Figure 6 The single-hole plunger 4 includes: a single-hole plunger main oil hole 43, a single-hole plunger oil guide hole 41 and a single-hole plunger adjustment buckle 42. The single-hole plunger main oil hole 43 is arranged along the axial direction of the single-hole plunger 4, and the single-hole plunger oil guide hole 41 is arranged along the radial direction of the single-hole plunger 4. The single-hole plunger oil guide hole 43 is used to connect to any one of the main oil holes of the mounting carrier and is used to communicate with the execution oil chamber. The single-hole plunger main oil hole 41 of the single-hole plunger is connected to the hydraulic system, and the single-hole plunger main oil hole 43 is connected to the single-hole plunger oil guide hole 41. The single-hole plunger adjustment buckle 42 is used to be clamped on the machine tool guide rail mounting carrier to connect the single-hole plunger oil guide hole with the mounting carrier main oil hole.

[0065] Based on the aforementioned embodiments, an embodiment of the present application provides a hydraulic clamping system, which includes: a clamping device and a hydraulic system in any of the aforementioned embodiments, wherein the hydraulic system is used to control each hydraulic execution branch to provide a load to the lateral force-bearing part corresponding to each hydraulic execution branch.

[0066] In some embodiments, Figure 8 A structural diagram of a hydraulic system provided in an embodiment of the present application is shown in FIG. Figure 8As shown, the hydraulic execution branch includes an execution oil chamber, and a hydraulic piston is provided in the execution oil chamber. The hydraulic system includes: an oil tank 14, a hydraulic pump 13, a main oil circuit 15 and multiple branch oil circuits 16. The oil tank 14 is connected to the hydraulic pump 13, the hydraulic pump 13 is connected to the main oil circuit 15, the main oil circuit 15 is connected to each branch oil circuit 16, and each branch oil circuit 16 is connected to a hydraulic execution branch. Each branch oil circuit 16 is used to control the movement direction of the hydraulic piston of the execution oil chamber in each hydraulic execution branch, so that the hydraulic piston of each execution oil chamber provides a load for the lateral force-bearing part corresponding to each hydraulic execution branch.

[0067] In some embodiments, the branch oil circuit includes: a one-way valve 12 and a three-position four-way solenoid valve 11. One end of the one-way valve 12 is connected to the main oil circuit 15, and the other end of the one-way valve 12 is connected to the three-position four-way solenoid valve 11. The other end of the three-position four-way solenoid valve 11 is connected to the hydraulic execution branch circuit. The three-position four-way solenoid valve 11 is used to control the hydraulic pressure in the execution oil chamber to control the movement direction of the hydraulic piston.

[0068] In the present application, see Figure 7 The A port of the three-position four-way solenoid valve 11 is connected to the double-hole plunger main oil hole 32, and the B port of the three-position four-way solenoid valve 11 is connected to the single-hole plunger main oil hole 43. All hydraulic components and related circuits on the branch oil circuit 16 only serve one set of hydraulic execution branches.

[0069] In some embodiments, the hydraulic clamping system further comprises:

[0070] The pressure sensor 9 is used to detect the hydraulic pressure in the execution oil chamber in each hydraulic execution branch.

[0071] In the embodiment of the present application, by setting up a pressure sensor, the hydraulic pressure in the execution oil chamber of each hydraulic execution branch can be monitored in real time, and the hydraulic pressure is related to the load of the lateral force-bearing part, so the load of the lateral force-bearing part can be monitored by the pressure sensor.

[0072] In some embodiments, the hydraulic system further includes: a relief valve 17 , one end of which is connected to the hydraulic pump.

[0073] Based on the aforementioned embodiments, embodiments of the present application provide a control method, which is applied to an electronic device, which may be a computer, a mobile terminal, or the like. In some embodiments, the electronic device may be a controller in a control system, which may be provided on a machine tool. The functions implemented by the control method provided in embodiments of the present application can be implemented by a processor of the electronic device calling program code, wherein the program code may be stored in a computer storage medium.

[0074] The embodiment of the present application provides a control method, Figure 9A schematic diagram of the implementation flow of a control method provided in an embodiment of the present application is shown in FIG. Figure 9 As shown, including:

[0075] Step S101 , obtaining the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch.

[0076] In an embodiment of the present application, the electronic device can be communicatively connected to the pressure sensors in each hydraulic execution branch, so as to obtain the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch.

[0077] In some embodiments, the electronic device may obtain the current hydraulic pressure of each hydraulic execution branch from the network.

[0078] Step S102 : comparing the current hydraulic pressure of the hydraulic oil in the execution oil chamber of each hydraulic execution branch with the pressure threshold corresponding to each hydraulic execution branch to obtain a comparison result.

[0079] In some embodiments, the pressure threshold can be a value. The comparison result can include: the current hydraulic pressure of the hydraulic execution branch is greater than the corresponding pressure threshold, the current hydraulic pressure of the hydraulic execution branch is less than the corresponding pressure threshold, and the current hydraulic pressure of the hydraulic execution branch is equal to the corresponding pressure threshold. In embodiments of the present application, an error range can be set. In some embodiments, the pressure threshold can be a range, and it can be determined whether the current pressure is within the range corresponding to the pressure threshold.

[0080] Step S103, based on the comparison results corresponding to each hydraulic execution branch, control each branch oil circuit to change the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch, so that the difference between the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch and the pressure threshold corresponding to each hydraulic execution branch is less than the error threshold, wherein, when the difference between the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch and the pressure threshold corresponding to each hydraulic execution branch is less than the error threshold, the straightness of the guide rail of the machine tool meets the straightness requirement.

[0081] In the embodiment of the present application, the hydraulic execution branch includes an execution oil chamber, and a hydraulic piston is provided in the execution oil chamber. The control of each branch oil circuit based on the comparison result corresponding to each hydraulic execution branch to change the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch includes:

[0082] When the comparison result corresponding to the hydraulic execution branch indicates that the absolute value of the difference between the current hydraulic pressure in the execution oil chamber of the hydraulic execution branch and the corresponding pressure threshold is greater than the error threshold, the branch oil circuit is controlled to pressurize or depressurize the hydraulic pressure of the corresponding execution oil chamber, wherein when the branch oil circuit pressurizes the hydraulic pressure of the corresponding execution oil chamber, the hydraulic piston in the execution oil chamber extends, and when the branch oil circuit depressurizes the hydraulic pressure of the corresponding execution oil chamber, the hydraulic piston retracts;

[0083] When the comparison result corresponding to the hydraulic execution branch indicates that the absolute value of the difference between the current hydraulic pressure of the hydraulic execution branch and the corresponding pressure threshold is less than the error threshold, the control branch oil circuit maintains the hydraulic pressure of the corresponding execution oil chamber.

[0084] In some embodiments, the branch oil circuit further includes: a three-position four-way solenoid valve.

[0085] In the embodiment of the present application, during the guide rail service phase, the three-position four-way solenoid valve 11 is in a power-off neutral state. When the pressure sensor 9 detects that the current hydraulic pressure is higher than the pressure threshold, the three-position four-way solenoid valve 11 receives a signal and is in the right position state to achieve pressure relief. When the current hydraulic pressure is within the pressure threshold range set by the pressure sensor, the three-position four-way solenoid valve 11 receives a signal and is in the neutral state to achieve hydraulic pressure maintenance. When the pressure relay sensor detects that the oil chamber pressure is lower than the set pressure threshold, the three-position four-way solenoid valve 11 receives a signal and is in the left position state to achieve hydraulic pressure boosting. When the current hydraulic pressure is within the pressure threshold range set by the pressure sensor, the three-position four-way solenoid valve 11 receives a signal and is in the neutral state to achieve hydraulic pressure adjustment. In this way, the lateral clamping force can always be within the error range of the set pressure threshold during the guide rail service process, so that its straightness can be maintained within a certain range, realizing the ability to adjust the straightness of the guide rail.

[0086] The control method provided in the embodiment of the present application can continuously monitor the current hydraulic pressure of each hydraulic execution branch, and can control the three-position four-way solenoid valve to adjust the hydraulic pressure in the execution oil chamber in each hydraulic execution branch based on the monitored current hydraulic pressure, thereby maintaining the straightness of the guide rail of the machine tool to meet the straightness requirements.

[0087] In the embodiment of the present application, before step S101, the method further includes:

[0088] During the guide rail installation phase, the assemblers complete the installation of the entire hydraulic execution branch and related components according to the above description and start the hydraulic system. At this time, the three-position four-way solenoid valve 11 is in the left position, and the hydraulic oil passes through the one-way valve 12 and the PA port of the three-position four-way solenoid valve 11 into the main oil hole 32 of the double-hole plunger, and enters the left oil chamber of the oil chamber through the first oil guide hole 31 of the double-hole plunger. The hydraulic oil in the right oil chamber goes along the second oil guide hole 34 of the double-hole plunger, the oil guide hole 41 of the single-hole plunger and the main oil hole 43 of the single-hole plunger, and enters the oil tank through the BT port of the three-position four-way solenoid valve 11, so that the hydraulic piston 5 extends and applies the load to the lateral force hole 21 of the guide rail to increase the load; when the three-position four-way solenoid valve 11 is manually controlled to be in the right position, the three-position four-way solenoid valve 11 is in the right position. PB and AT of the four-way solenoid valve 11 are connected. At this time, the left oil chamber of the execution oil chamber is connected to the oil tank, and the right oil chamber of the execution oil chamber is connected to the hydraulic pump. The outlet pressure of the hydraulic pump is greater than the atmospheric pressure of the oil tank, so that the hydraulic piston 5 retracts to reduce the load. Through the guide rail straightness adjustment method well known to assembly technicians in this field, the load size of the hydraulic piston 5 of each branch oil circuit is continuously adjusted so that the guide rail straightness meets the use requirements. At this time, the three-position four-way solenoid valve 11 of each branch oil circuit must be placed in the middle position, and the value of the pressure sensor 9 is set as the pressure threshold of each hydraulic execution branch.

[0089] Based on the foregoing embodiments, an embodiment of the present application provides a control device, wherein the modules included in the device and the units included in each module can be implemented by a processor in a computer device; of course, they can also be implemented by a specific logic circuit; in the implementation process, the processor can be a central processing unit (CPU), a microprocessor (MPU), a digital signal processor (DSP), or a field programmable gate array (FPGA), etc.

[0090] An embodiment of the present application provides a control device, the control device comprising:

[0091] An acquisition module, used to acquire the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch;

[0092] a comparison module, configured to compare the current hydraulic pressure of the hydraulic oil in the execution oil chamber of each hydraulic execution branch with the pressure threshold corresponding to each hydraulic execution branch to obtain a comparison result;

[0093] A control module is used to control each branch oil circuit to change the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch based on the comparison results corresponding to each hydraulic execution branch, so that the difference between the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch and the pressure threshold corresponding to each hydraulic execution branch is less than an error threshold, wherein, when the difference between the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch and the pressure threshold corresponding to each hydraulic execution branch is less than the error threshold, the straightness of the guide rail of the machine tool meets the straightness requirement.

[0094] In some embodiments, the hydraulic execution branch includes an execution oil chamber, and a hydraulic piston is provided in the execution oil chamber. Controlling each branch oil circuit to change the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch based on the comparison results corresponding to each hydraulic execution branch includes:

[0095] When the comparison result corresponding to the hydraulic execution branch indicates that the absolute value of the difference between the current hydraulic pressure in the execution oil chamber of the hydraulic execution branch and the corresponding pressure threshold is greater than the error threshold, the branch oil circuit is controlled to pressurize or depressurize the hydraulic pressure of the corresponding execution oil chamber, wherein when the branch oil circuit pressurizes the hydraulic pressure of the corresponding execution oil chamber, the hydraulic piston in the execution oil chamber extends, and when the branch oil circuit depressurizes the hydraulic pressure of the corresponding execution oil chamber, the hydraulic piston retracts;

[0096] When the comparison result corresponding to the hydraulic execution branch indicates that the absolute value of the difference between the current hydraulic pressure of the hydraulic execution branch and the corresponding pressure threshold is less than the error threshold, the control branch oil circuit maintains the hydraulic pressure of the corresponding execution oil chamber.

[0097] An embodiment of the present application provides an electronic device; Figure 10 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application is shown in FIG. Figure 10 As shown, the electronic device 700 includes: a processor 701, at least one communication bus 702, a user interface 703, at least one external communication interface 704, and a memory 705. The communication bus 702 is configured to enable communication between these components. The user interface 703 may include a display screen, and the external communication interface 704 may include a standard wired interface and a wireless interface. The processor 701 is configured to execute the control method program stored in the memory to implement the steps of the control method provided in the above embodiment.

[0098] In the embodiments of the present application, if the above-mentioned control method is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiments of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a magnetic disk, or an optical disk. In this way, the embodiments of the present application are not limited to any specific combination of hardware and software.

[0099] Accordingly, an embodiment of the present application provides a storage medium on which a computer program is stored, characterized in that when the computer program is executed by a processor, the steps in the control method provided in the above embodiment are implemented.

[0100] An embodiment of the present application provides a control system, comprising: the electronic device described above and any one of the hydraulic clamping systems described above.

[0101] An embodiment of the present application provides a machine tool, including: the control system described above.

[0102] The descriptions of the above electronic device, storage medium, control system, and machine tool embodiments are similar to the descriptions of the above method embodiments and have similar beneficial effects as the method embodiments. For technical details not disclosed in the computer device and storage medium embodiments of this application, please refer to the descriptions of the method embodiments of this application for understanding.

[0103] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are for description only and do not represent the advantages and disadvantages of the embodiments.

[0104] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0105] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0106] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed across multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0107] In addition, all functional units in the embodiments of the present application can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the above-mentioned integrated units can be implemented in the form of hardware or in the form of hardware plus software functional units.

[0108] Those skilled in the art will understand that all or part of the steps of the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above-mentioned method embodiments; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROMs), magnetic disks, optical disks, and other media that can store program codes.

[0109] Alternatively, if the above-mentioned integrated unit of the present application is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a controller to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROMs, magnetic disks or optical disks.

[0110] The above is merely an embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A clamping device, characterized in that: include: A machine tool guide rail mounting carrier, wherein the machine tool guide rail mounting carrier is provided with a plurality of hydraulic execution branches, and the hydraulic execution branches are connected to the hydraulic system; A rolling guide rail guide component is provided with a plurality of lateral force-bearing parts, each hydraulic execution branch corresponds to a lateral force-bearing part, and each hydraulic execution branch is used to provide a load to the lateral force-bearing part so that the rolling guide rail guide component clamps the guide rail of the machine tool on the machine tool; The machine tool guide rail mounting carrier is provided with two mounting carrier main oil holes, multiple groups of hydraulic branch holes connected to the mounting carrier main oil holes and mounting accessories corresponding to each group of hydraulic branch holes. When the mounting accessories corresponding to each group of hydraulic branch holes are installed in the hydraulic branch holes, they are used to assemble the mounting carrier main oil holes and the hydraulic branch holes into a hydraulic execution branch; the hydraulic branch holes include: an oil cavity partition plug hole with an oil cavity blockage, an execution oil cavity, a double-hole plunger mounting hole with a double-hole plunger and a single-hole plunger mounting hole with a single-hole plunger, which are arranged in sequence; the mounting accessories include: an oil cavity blockage, a cavity front sealing head, a hydraulic piston, a cavity rear sealing head, a double-hole plunger and a single-hole plunger, The oil chamber blockage is used to cut off the main oil hole of the mounting carrier, and a front sealing head and a rear sealing head are respectively provided at both ends of the execution oil chamber. A hydraulic piston is provided in the execution oil chamber, and the hydraulic piston can extend the front sealing head of the execution oil chamber under the action of hydraulic pressure and act on the lateral force-bearing part. The double-hole plunger is used to connect the two main oil holes of the mounting carrier with the hydraulic system, and the single-hole plunger is used to connect one of the main oil holes of the mounting carrier with the hydraulic system, wherein the hydraulic execution branch includes a pipeline respectively connected to the execution oil chamber of each group of hydraulic branch holes, and the hydraulic piston in each hydraulic execution branch is used to provide load for the lateral force-bearing part.

2. The clamping device according to claim 1, characterized in that The lateral force-bearing part includes: lateral force-bearing holes, and the hydraulic piston in each hydraulic execution branch corresponds to a lateral force-bearing hole, and the hydraulic piston in each hydraulic execution branch is used to provide load for the corresponding lateral force-bearing hole.

3. The clamping device according to claim 1 or 2, characterized in that The double-hole plunger includes: a double-hole plunger main oil hole, a first oil guide hole of the double-hole plunger, a second oil guide hole of the double-hole plunger and a double-hole plunger adjusting buckle. The double-hole plunger main oil hole is arranged along the axial direction of the double-hole plunger, the first oil guide hole of the double-hole plunger and the second oil guide hole of the double-hole plunger are arranged along the radial direction of the double-hole plunger, the double-hole plunger main oil hole is connected with the first oil guide hole of the double-hole plunger, the first oil guide hole of the double-hole plunger and the second oil guide hole of the double-hole plunger are used to be connected with the main oil holes of two mounting carriers, the double-hole plunger main oil hole of the double-hole plunger is used to be connected with the hydraulic system, and the double-hole plunger adjusting buckle is used to be clamped on the machine tool guide rail mounting carrier to connect the first oil guide hole of the double-hole plunger and the second oil guide hole of the double-hole plunger with the main oil hole of the mounting carrier.

4. The clamping device according to claim 3, characterized in that The single-hole plunger includes: a single-hole plunger main oil hole, a single-hole plunger oil guide hole and a single-hole plunger adjustment buckle. The single-hole plunger main oil hole is arranged along the axial direction of the single-hole plunger, and the single-hole plunger oil guide hole is arranged along the radial direction of the single-hole plunger. The single-hole plunger oil guide hole is used to connect to the main oil hole of the mounting carrier away from one end of the double-hole plunger main oil hole and is used to communicate with the execution oil chamber. The single-hole plunger main oil hole of the single-hole plunger is connected to the hydraulic system, the single-hole plunger main oil hole is connected to the single-hole plunger oil guide hole, and the single-hole plunger adjustment buckle is used to be clamped on the machine tool guide rail mounting carrier to connect the single-hole plunger oil guide hole with the mounting carrier main oil hole.

5. A hydraulic clamping system, characterized in that: include: The clamping device and hydraulic system according to any one of claims 1 to 4, wherein the hydraulic system is used to control each hydraulic execution branch to provide a load to the lateral force-bearing part corresponding to each hydraulic execution branch.

6. The hydraulic clamping system according to claim 5, characterized in that: The hydraulic execution branch includes an execution oil chamber, and a hydraulic piston is provided in the execution oil chamber. The hydraulic system includes: an oil tank, a hydraulic pump, a main oil circuit and multiple branch oil circuits. The oil tank is connected to the hydraulic pump, the hydraulic pump is connected to the main oil circuit, the main oil circuit is connected to each branch oil circuit, and each branch oil circuit is connected to a hydraulic execution branch. Each branch oil circuit is used to control the movement direction of the hydraulic piston of the execution oil chamber in each hydraulic execution branch, so that the hydraulic piston of each execution oil chamber provides a load for the lateral force-bearing part corresponding to each hydraulic execution branch.

7. The hydraulic clamping system according to claim 6, characterized in that: The branch oil circuit includes: a one-way valve and a three-position four-way solenoid valve. One end of the one-way valve is connected to the main oil circuit, and the other end of the one-way valve is connected to the three-position four-way solenoid valve. The other end of the three-position four-way solenoid valve is connected to the hydraulic execution branch circuit. The three-position four-way solenoid valve is used to control the hydraulic pressure in the execution oil chamber to control the movement direction of the hydraulic piston.

8. The hydraulic clamping system according to any one of claims 6 to 7, characterized in that: The hydraulic clamping system further comprises: A pressure sensor is used to detect the hydraulic pressure in the execution oil chamber of each hydraulic execution branch.

9. A control method, characterized in that: The hydraulic clamping system according to any one of claims 5 to 8, wherein the method comprises: Obtaining the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch; Comparing the current hydraulic pressure of the hydraulic oil in the execution oil chamber of each hydraulic execution branch with the pressure threshold corresponding to each hydraulic execution branch to obtain a comparison result; Based on the comparison results corresponding to each hydraulic execution branch, each branch oil circuit is controlled to change the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch, so that the difference between the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch and the pressure threshold corresponding to each hydraulic execution branch is less than the error threshold, wherein, when the difference between the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch and the pressure threshold corresponding to each hydraulic execution branch is less than the error threshold, the straightness of the guide rail of the machine tool meets the straightness requirement.

10. The control method according to claim 9, characterized in that: The hydraulic execution branch includes an execution oil chamber, and a hydraulic piston is provided in the execution oil chamber. The control of each branch oil circuit based on the comparison result corresponding to each hydraulic execution branch to change the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch includes: When the comparison result corresponding to the hydraulic execution branch indicates that the absolute value of the difference between the current hydraulic pressure in the execution oil chamber of the hydraulic execution branch and the corresponding pressure threshold is greater than the error threshold, the branch oil circuit is controlled to pressurize or depressurize the hydraulic pressure of the corresponding execution oil chamber, wherein when the branch oil circuit pressurizes the hydraulic pressure of the corresponding execution oil chamber, the hydraulic piston in the execution oil chamber extends, and when the branch oil circuit depressurizes the hydraulic pressure of the corresponding execution oil chamber, the hydraulic piston retracts; When the comparison result corresponding to the hydraulic execution branch indicates that the absolute value of the difference between the current hydraulic pressure of the hydraulic execution branch and the corresponding pressure threshold is less than the error threshold, the control branch oil circuit maintains the hydraulic pressure of the corresponding execution oil chamber.

11. A control device, characterized in that: The hydraulic clamping system according to any one of claims 5 to 8 comprises: An acquisition module, used to acquire the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch; a comparison module, configured to compare the current hydraulic pressure of the hydraulic oil in the execution oil chamber of each hydraulic execution branch with the pressure threshold corresponding to each hydraulic execution branch to obtain a comparison result; A control module is used to control each branch oil circuit to change the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch based on the comparison results corresponding to each hydraulic execution branch, so that the difference between the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch and the pressure threshold corresponding to each hydraulic execution branch is less than an error threshold, wherein, when the difference between the current hydraulic pressure in the execution oil chamber of each hydraulic execution branch and the pressure threshold corresponding to each hydraulic execution branch is less than the error threshold, the straightness of the guide rail of the machine tool meets the straightness requirement.

12. An electronic device, characterized in that: The method comprises a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the method according to any one of claims 9 to 10 is executed.

13. A control system, characterized in that: include: The electronic device according to claim 12 and the hydraulic clamping system according to any one of claims 5 to 8.

14. A machine tool, characterized in that: Includes the control system described in claim 13.

15. A storage medium, characterized in that The computer program stored in the storage medium can be executed by one or more processors and can be used to implement the control method according to any one of claims 9 to 10.

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