Integrated hydraulic sliding table control system

Abstract

The utility model relates to the technical field of hydraulic sliding tables, in particular to an integrated hydraulic sliding table control system. Comprising a cylinder barrel, a sliding assembly, a cylinder cover and a throttling valve, any face of the cylinder barrel is provided with a dustproof belt, the dustproof belt is provided with the sliding assembly, the sliding assembly comprises pistons and a sliding block, the pistons are fixedly arranged on the lower portions of the two ends of the sliding block, the pistons slide in the cylinder barrel, the sliding block slides on the upper portion of the dustproof belt, and the throttling valve is arranged on the cylinder barrel. The two ends of the cylinder barrel are fixedly connected with the cylinder cover, the two ends of the cylinder cover are provided with control valves communicated with the cylinder barrel, and the control valves are electrically connected with a control system. By applying the sliding table cylinder, the purposes of larger output force of the sliding table cylinder and higher control precision can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic slide table technology, and in particular to an integrated hydraulic slide table control system. Background Technology

[0002] Modern slide cylinders are basically powered by compressed air. Due to the compressibility of gas, the smoothness of movement is slightly poor, the working pressure is low and it is not easy to obtain a large output force or torque. In addition, the cylinder has a large exhaust noise, and air has no lubrication performance, so an oil lubrication device needs to be installed in the air circuit. This makes it impossible to meet some of the automation requirements in heavy industry, especially when gripping some parts, it is impossible to control them accurately.

[0003] Therefore, this utility model proposes an integrated hydraulic slide control system, which can achieve the goal of greater output force and higher control precision of the slide cylinder. Summary of the Invention

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing an integrated hydraulic slide control system.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: it includes a cylinder, a sliding assembly, a cylinder head, and a control valve. A dustproof strip is provided on any side of the cylinder, and a sliding assembly is provided on the dustproof strip. The sliding assembly includes a piston and a slider. The piston is fixedly provided at the bottom of the slider. The piston slides inside the cylinder, and the slider slides on the upper part of the dustproof strip. The cylinder head is fixedly connected to both ends of the cylinder, and a control valve is provided at both ends of the cylinder head to communicate with the cylinder. The control valve is electrically connected to the control system.

[0006] Furthermore, a buffer device is provided on the opposing surfaces of the cylinder heads at both ends of the cylinder barrel.

[0007] Furthermore, a groove is provided on the dustproof belt, and the slider moves back and forth along the groove.

[0008] Furthermore, the dustproof belt includes a dustproof stainless steel belt and a sealing belt. The lower end face of the dustproof stainless steel belt is provided with a sealing belt. The sealing belt is the same size as the dustproof stainless steel belt, and both the sealing belt and the dustproof stainless steel belt are elastic.

[0009] Furthermore, a guide body is provided between the dustproof stainless steel strip and the sealing strip. The guide body is fixed inside the slider and moves back and forth between the sealing strip and the dustproof stainless steel strip.

[0010] Furthermore, the cylinder is equipped with a displacement sensor for detecting the displacement of the slider, a flow sensor for detecting the flow rate of hydraulic oil passing through the cylinder, and a pressure sensor for detecting the flow pressure at both ends of the control valve.

[0011] Furthermore, the control system is a servo control system.

[0012] Compared with existing technologies, the integrated hydraulic slide control system provided by this utility model has the following advantages:

[0013] 1. It adopts a simple structure, and the slider can be moved by a piston;

[0014] 2. Rodless hydraulic cylinders are used for walking, lifting, tilting and other operations, providing greater functionality and flexibility for mobile machinery;

[0015] 3. The application of the control system makes the throttle valve more precise in regulating the hydraulic oil flow. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0018] In the diagram: 1. Control valve, 2. Buffer device, 3. Sealing strip, 4. Dustproof stainless steel strip, 5. Piston, 6. Slider, 7. Guide body, 8. Cylinder head, 9. Cylinder barrel. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Example 1, such as Figure 1 and Figure 2As shown, an integrated hydraulic slide control system includes a cylinder 9, a sliding assembly, a cylinder head 8, and a control valve 1. A dustproof strip is provided on any side of the cylinder 9, and a sliding assembly is provided on the dustproof strip. The sliding assembly includes a piston 5 and a slider 6. The piston 5 is fixedly provided at the bottom of the slider 6. The piston 5 slides inside the cylinder 9, and the slider 6 slides on the upper part of the dustproof strip. The cylinder head 8 is fixedly connected to both ends of the cylinder 9. The control valve 1 is provided at both ends of the cylinder head 8 to communicate with the cylinder 9. The control valve 1 is electrically connected to the control system.

[0022] In this embodiment, the piston 5 drives the slider 6 to move, thereby causing the actuator connected to the slider 6 to reciprocate. The slider 6 on the hydraulic slide can be fitted with clamps or other actuators to grip parts such as bearings. The control valve 1 is a throttle valve. Its opening degree can be controlled by the control system.

[0023] Example 2, please continue to refer to Figure 1 A buffer device 2 is provided on the opposite surfaces of the cylinder heads 8 at both ends of the cylinder barrel 9. In this embodiment, the buffer device 2 is a buffer plunger. When the piston 5 approaches the end of its stroke, the buffer plunger can slow down its speed and absorb excess energy generated by the movement of the cylinder, thereby reducing impact and vibration. This helps protect the cylinder barrel 9 and other components of the hydraulic system, such as pipelines, and extends their service life.

[0024] In Example 3, a groove is provided on the dustproof belt, and the slider 6 moves back and forth along the groove. The dustproof belt includes a dustproof stainless steel belt 4 and a sealing belt 3. The sealing belt 3 is provided on the lower end face of the dustproof stainless steel belt 4. The sealing belt 3 is the same size as the dustproof stainless steel belt 4, and both the sealing belt 3 and the dustproof stainless steel belt 4 are elastic.

[0025] A guide body 7 is provided between the dustproof stainless steel strip 4 and the sealing strip 3. The guide body 7 is fixed inside the slider 6 and moves back and forth between the sealing strip 3 and the dustproof stainless steel strip 4.

[0026] Please continue to refer to this. Figure 1 The connecting piece between the slider 6 and the piston 5 passes through the dustproof strip and is located in the groove. The guide body 7, which is tubular, guides the slider 6 as it moves between the sealing strip 3 and the dustproof stainless steel strip 4. Because both the sealing strip 3 and the dustproof stainless steel strip 4 are elastic, they separate when the guide body 7 passes through them and close again afterward. The sealing strip 3 and the dustproof stainless steel strip 4 are primarily used for dust prevention, preventing dust or other impurities from entering the cylinder 9, thereby protecting the normal operation of the cylinder 9 and extending its service life.

[0027] The cylinder 9 is equipped with a displacement sensor to detect the displacement of the slider 6, a flow sensor to detect the flow rate of hydraulic oil passing through the cylinder 9, and a pressure sensor to detect the hydraulic oil pressure at both ends of the control valve 1.

[0028] The control system is a servo control system. The displacement sensor, flow sensor, and pressure sensor are electrically connected to the servo control system. The data detected by the pressure sensor is received and processed by the servo control system, which then controls the opening of the throttle valve to precisely control the speed of the slider 6. The displacement sensor can monitor the displacement of the slider 6, and the flow sensor can monitor the flow rate of the hydraulic oil in the system.

[0029] Example 4: To better control the hydraulic oil flow rate with the throttle valve, the following method can be used in this example, including the following steps:

[0030] S1. Install a displacement sensor and a flow sensor on the cylinder 9, and install pressure sensors at both ends of the control valve 1.

[0031] S2. Determine the displacement and movement time of slider 6;

[0032] S3. Determine the cross-sectional area of ​​piston 5;

[0033] S4. Determine the speed of slider 6;

[0034] S5. The hydraulic oil flow rate is determined by steps S3 and S4, and then the opening of the throttle valve is adjusted accordingly.

[0035] Formula for calculating the velocity V of slider 6 in S2: Where S is the displacement of slider 6 and T is the time it takes for slider 6 to move.

[0036] The formula for calculating the area of ​​piston 5 in S3 is: ,in, D is the cross-sectional area of ​​piston 5, and D is the diameter of piston 5;

[0037] In S5, the hydraulic oil flow rate can be expressed as: Where Q is the hydraulic oil flow rate. V is the cross-sectional area of ​​piston 5, and V is the velocity of slider 6;

[0038] The opening degree of control valve 1 can be expressed as: ,in, This is expressed as the opening degree of control valve 1. It is expressed as the flow coefficient, which depends on the design of control valve 1 and the Reynolds number of the hydraulic oil. ρ is the density of the hydraulic oil, and ∆P is the pressure drop across control valve 1.

[0039] In this embodiment, the diameter D of piston 5 is set to 0.1 m, and ∆P is set to 5,000,000 Pa.

[0040] Calculate the cross-sectional area of ​​piston 5: ,

[0041] If the displacement S of slider 6 is 0.5m and the time T for slider 6 to move is 2s, then the velocity... ,

[0042] Hydraulic oil flow ,

[0043] Set flow coefficient Given a value of 0.6 and a hydraulic oil density ρ of 850 kg / m³, substituting these figures into the formula, the opening degree of the throttle valve can be calculated as follows:

[0044] ,

[0045] During use, the control system automatically changes the opening of the throttle valve to precisely control the hydraulic oil flow rate and ensure system stability.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An integrated hydraulic slide control system comprising a cylinder barrel (9), a slide assembly, a cylinder head (8), a control valve (1), characterized in that: The cylinder (9) is provided with a dustproof belt on any side, the dustproof belt is provided with a sliding assembly, the sliding assembly comprises a piston (5) and a sliding block (6), the bottom of the sliding block (6) is fixedly provided with the piston (5), the piston (5) slides in the cylinder (9), the sliding block (6) slides on the upper part of the dustproof belt, the cylinder (9) is fixedly connected with the cylinder cover (8) at both ends, the cylinder cover (8) is provided with a control valve (1) at both ends and is communicated with the cylinder (9), and the control valve (1) is electrically connected with a control system.

2. The integrated hydraulic table control system of claim 1, wherein: The cylinder cover (8) at both ends of the cylinder (9) is provided with a buffer device (2) on the opposite side.

3. The integrated hydraulic table control system of claim 1, wherein: A groove is arranged on the dustproof belt, and the sliding block (6) moves back and forth along the groove.

4. The integrated hydraulic table control system of claim 3, wherein: The dustproof belt comprises a dustproof stainless steel belt (4) and a sealing belt (3), the lower end surface of the dustproof stainless steel belt (4) is provided with the sealing belt (3), the sealing belt (3) is equal to the dustproof stainless steel belt (4), and the sealing belt (3) and the dustproof stainless steel belt (4) are both elastic.

5. The integrated hydraulic table control system of claim 4, wherein: A guide body (7) is arranged between the dustproof stainless steel belt (4) and the sealing belt (3), the guide body (7) is fixed in the sliding block (6), and the guide body (7) moves back and forth between the sealing belt (3) and the dustproof stainless steel belt (4).

6. The integrated hydraulic table control system of claim 1, wherein: The cylinder (9) is provided with a displacement sensor for detecting the displacement of the sliding block (6), a flow sensor for detecting the flow of hydraulic oil through the cylinder (9) and a pressure sensor for detecting the hydraulic oil pressure at both ends of the control valve (1).

7. The integrated hydraulic table control system of claim 1, wherein: The control system is a servo control system.

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