High-stability high-low voltage automatic switching system device

Abstract

The utility model discloses a high-stability high-low pressure automatic switching system device which comprises a working table, a fixing mechanism used for fixing a machined workpiece is installed on the top of the working table, a hydraulic cylinder is installed on the fixing mechanism and connected with a hydraulic mechanism through a pipeline, the hydraulic mechanism is fixed in the working table, and the working table is connected with the hydraulic mechanism through a pipeline. A controller is installed on one side of the workbench and electrically connected with the hydraulic mechanism, the hydraulic mechanism is arranged, a plurality of assemblies of the hydraulic mechanism are used in cooperation, automatic switching of high pressure and low pressure of hydraulic pressure can be achieved through an electromagnetic unloading valve, and therefore different pressure control over the hydraulic cylinder is achieved, the stability and reliability of the system are improved, and meanwhile the working efficiency is improved. And potential quality hazards caused by unstable machining sizes due to characteristics of machined products are reduced, so that the machining quality is greatly improved, and the efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic clamping system devices, and in particular to a high-stability high-low pressure automatic switching system device. Background Technology

[0002] A hydraulic system is a power transmission system that uses liquid as a power transmission medium. High and low pressure equipment refers to the presence of high-pressure and low-pressure oil circuits in the system. This allows the system to select different pressure levels under different working conditions, thereby achieving efficient operation, avoiding unnecessary damage and failure of the hydraulic system, and improving the stability and accuracy of the product.

[0003] The existing patent document with publication number CN207930349U discloses an automatic high-low pressure switching device for a machine tool hydraulic system. The device includes a hydraulic stack, a hydraulic manifold block, a high-low pressure switching valve, a single-coil solenoid valve, an oil pipe, a hydraulic fixture, and a DCV relay. The hydraulic manifold block is fixed above the hydraulic stack, the high-low pressure switching valve is installed above the hydraulic manifold block, and the single-coil solenoid valve is installed above the high-low pressure switching valve. One end of the oil pipe is connected to the hydraulic manifold block, and the other end is connected to the hydraulic fixture. The hydraulic stack, the high-low pressure switching valve, the single-coil solenoid valve, and the DCV relay are all connected to the signal terminal of the machine tool PLC control unit through wires.

[0004] Although the aforementioned high-low pressure automatic switching device for machine tool hydraulic systems can solve the corresponding technical problems, the following issues still exist: during use, the hydraulic pressure cannot meet the clamping requirements of the workpiece, resulting in substandard product quality and affecting production efficiency.

[0005] To address this, a highly stable high-low voltage automatic switching system is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a highly stable high-low voltage automatic switching system device to solve the problems mentioned in the background art.

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0008] A high-stability high-low voltage automatic switching system includes:

[0009] A workbench is provided, with a fixing mechanism for fixing the workpiece on its top. A hydraulic cylinder is mounted on the fixing mechanism and connected to the hydraulic mechanism via a pipe. The hydraulic mechanism is fixed inside the workbench. A controller is mounted on one side of the workbench and is electrically connected to the hydraulic mechanism.

[0010] As a preferred technical solution, the fixing mechanism includes a fixed base, which is fixedly installed on the top of the workbench. A fixing block is integrally formed on the top of the fixed base. A telescopic rod of a hydraulic cylinder is slidably connected to the middle of the fixing block. A clamping block is fixedly connected to the end of the telescopic rod of the hydraulic cylinder. The hydraulic cylinder is fixedly installed at one end of the fixed base.

[0011] As a preferred technical solution, one end of the clamping block is symmetrically and fixedly connected with a guide rod, and the guide rod slides in the middle of the fixed block.

[0012] As a preferred technical solution, the hydraulic mechanism includes an oil reservoir. One end of the oil reservoir is connected to the oil inlet of the hydraulic pump via an oil pipe. The oil outlet of the hydraulic pump is connected to the first port of the electromagnetic unloading valve via an oil pipe. The second port of the electromagnetic unloading valve is connected to the first port of the hydraulic cylinder via an oil pipe. The third port of the electromagnetic unloading valve is connected to the second port of the hydraulic cylinder via an oil pipe. The fourth port of the electromagnetic unloading valve is connected to the oil reservoir via an oil pipe.

[0013] As a preferred technical solution, the electromagnetic unloading valve is mounted on the hydraulic cylinder by a bracket, and the oil tank and the hydraulic pump are both fixed inside the workbench.

[0014] As a preferred technical solution, the hydraulic pump and the electromagnetic unloading valve are electrically connected to the controller via wires.

[0015] This utility model has at least the following beneficial effects:

[0016] The beneficial effects of this utility model are that by setting up a hydraulic mechanism, its multiple components work together, and by using an electromagnetic unloading valve, it can achieve automatic switching between high and low hydraulic pressure, thereby controlling the hydraulic cylinder at different pressures. This improves the stability and reliability of the system, while reducing the quality risks caused by the instability of the processed product's dimensions due to its characteristics, thus significantly improving processing quality and efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the high-stability high-low voltage automatic switching system device of this utility model;

[0018] Figure 2 This is a top view of the high-stability high-low voltage automatic switching system device of this utility model;

[0019] Figure 3 This is a schematic diagram of the hydraulic mechanism of the high-stability high-low pressure automatic switching system of this utility model.

[0020] In the diagram: 1. Workbench; 2. Controller; 3. Hydraulic mechanism; 301. Hydraulic cylinder; 302. Support; 303. Electromagnetic unloading valve; 304. Oil pipe one; 305. Hydraulic pump; 306. Oil tank; 307. Oil pipe two; 308. Oil pipe three; 309. Oil pipe four; 4. Fixing mechanism; 401. Fixed base; 402. Clamping block; 403. Fixing block; 404. Guide rod. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-Figure 3 The present invention provides a high-stability high-low pressure automatic switching system device, comprising: a workbench 1, a fixing mechanism 4 for fixing the workpiece is installed on the top of the workbench 1, a hydraulic cylinder 301 is installed on the fixing mechanism 4, the hydraulic cylinder 301 is connected to the hydraulic mechanism 3 through a pipe, the hydraulic mechanism 3 is fixed inside the workbench 1, and a controller 2 is installed on one side of the workbench 1, the controller 2 is electrically connected to the hydraulic mechanism 3.

[0023] The fixing mechanism 4 includes a fixed base 401, which is fixedly installed on the top of the worktable 1. A fixing block 403 is integrally formed on the top of the fixed base 401. A telescopic rod of a hydraulic cylinder 301 is slidably connected to the middle of the fixing block 403. A clamping block 402 is fixedly connected to the end of the telescopic rod of the hydraulic cylinder 301. The hydraulic cylinder 301 is fixedly installed at one end of the fixed base 401. By setting the fixing mechanism 4 and installing the hydraulic cylinder 301 on the top of the fixed base 401, and using subsequent components to drive the hydraulic cylinder 301, the clamping block 402 at the end of the telescopic rod of the hydraulic cylinder 301 can clamp the workpiece, thus fixing the workpiece onto the fixed base 401.

[0024] One end of the clamping block 402 is symmetrically and fixedly connected to a guide rod 404, which slides in the middle of the fixed block 403. By setting the guide rod 404, the clamping block 402 can move stably, while the pressure of the hydraulic cylinder 301 is evenly balanced, so that the clamping block 402 can stably clamp the workpiece, reduce workpiece shaking during processing, and improve production efficiency.

[0025] The hydraulic mechanism 3 includes an oil reservoir 306. One end of the oil reservoir 306 is connected to the inlet of a hydraulic pump 305 via an oil pipe. The outlet of the hydraulic pump 305 is connected to the first port of an electromagnetic unloading valve 303 via an oil pipe 304. The second port of the electromagnetic unloading valve 303 is connected to the first port of a hydraulic cylinder 301 via an oil pipe 308. The third port of the electromagnetic unloading valve 303 is connected to the second port of the hydraulic cylinder 301 via an oil pipe 309. The fourth port of the electromagnetic unloading valve 303 is connected to the oil reservoir 306 via an oil pipe 307. By setting up the hydraulic mechanism 3, its multiple components work together. Utilizing the electromagnetic unloading valve 303, it can automatically switch between high and low hydraulic pressures, thereby controlling the hydraulic cylinder 301 with different pressures. This improves the stability and reliability of the system while reducing the quality risks caused by unstable dimensional processing of processed products due to their characteristics, thus significantly improving processing quality and efficiency.

[0026] The electromagnetic unloading valve 303 is mounted on the hydraulic cylinder 301 via a bracket 302, while the oil reservoir 306 and hydraulic pump 305 are both fixed inside the worktable 1. By utilizing the bracket 302, the electromagnetic unloading valve 303 can be stably fixed on the hydraulic cylinder 301, and the oil reservoir 306 and hydraulic pump 305 can be installed inside the worktable 1, which can make full use of the internal space of the worktable 1 and reduce the contamination of it by processing residue during the processing.

[0027] The hydraulic pump 305 and the electromagnetic unloading valve 303 are electrically connected to the controller 2 via wires. By connecting the electromagnetic unloading valve 303 and the hydraulic pump 305 to the controller 2 via wires, the controller 2 controls the electromagnetic unloading valve 303 and the hydraulic pump 305 to achieve stable high and low pressure output. This controls the hydraulic cylinder 301 and the fixing mechanism 4 to work together, and automatically completes the high and low pressure switching without manual intervention, reducing the difficulty of operation and the risk of human error.

[0028] Among them, controller 2 can be a Siemens S7-300 series PLC controller.

[0029] Among them, the model of electromagnetic unloading valve 303 can be the unloading valve CG5V-6-CW-OBA-A240 produced by Wuhan Hongxinlong Hydraulic Machinery Co., Ltd.

[0030] The working principle of this utility model is as follows: First, the device is stably fixed on the processing platform of the processing equipment. Then, the hydraulic mechanism 3 is started. The hydraulic pump 305 of the hydraulic mechanism 3 provides hydraulic pressure to the electromagnetic unloading valve 303. Under the control of the controller 2, the electromagnetic unloading valve 303 and the hydraulic pump 305 output high or low pressure to the hydraulic cylinder 301, so that the clamping block 402 at the end of the telescopic rod of the hydraulic cylinder 301 applies different clamping forces to different workpieces, thereby reducing the quality risks caused by the unstable processing dimensions of the processed products due to their characteristics, and thus greatly improving the processing quality.

[0031] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-stability high-low voltage automatic switching system device, characterized in that, include: A workbench (1) is provided, and a fixing mechanism (4) for fixing the workpiece is installed on the top of the workbench (1). A hydraulic cylinder (301) is installed on the fixing mechanism (4). The hydraulic cylinder (301) is connected to the hydraulic mechanism (3) through a pipe. The hydraulic mechanism (3) is fixed inside the workbench (1). A controller (2) is installed on one side of the workbench (1). The controller (2) is electrically connected to the hydraulic mechanism (3). The hydraulic mechanism (3) includes an oil reservoir (306). One end of the oil reservoir (306) is connected to the oil inlet of the hydraulic pump (305) via an oil pipe. The oil outlet of the hydraulic pump (305) is connected to the first port of the electromagnetic unloading valve (303) via an oil pipe (304). The second port of the electromagnetic unloading valve (303) is connected to the first port of the hydraulic cylinder (301) via an oil pipe (308). The third port of the electromagnetic unloading valve (303) is connected to the second port of the hydraulic cylinder (301) via an oil pipe (409). The fourth port of the electromagnetic unloading valve (303) is connected to the oil reservoir (306) via an oil pipe (207).

2. The high-stability high-low voltage automatic switching system device according to claim 1, characterized in that: The fixing mechanism (4) includes a fixing base (401), which is fixedly installed on the top of the workbench (1). A fixing block (403) is integrally formed on the top of the fixing base (401). The middle part of the fixing block (403) is slidably connected to the telescopic rod of the hydraulic cylinder (301). A clamping block (402) is fixedly connected to the end of the telescopic rod of the hydraulic cylinder (301). The hydraulic cylinder (301) is fixedly installed on one end of the fixing base (401).

3. The high-stability high-low voltage automatic switching system device according to claim 2, characterized in that: One end of the clamping block (402) is symmetrically fixedly connected to a guide rod (404), and the guide rod (404) slides in the middle of the fixed block (403).

4. The high-stability high-low voltage automatic switching system device according to claim 3, characterized in that: The electromagnetic unloading valve (303) is mounted on the hydraulic cylinder (301) via a bracket (302), and the oil reservoir (306) and the hydraulic pump (305) are both fixed inside the workbench (1).

5. The high-stability high-low voltage automatic switching system device according to claim 4, characterized in that: The hydraulic pump (305) and the electromagnetic unloading valve (303) are electrically connected to the controller (2) via wires.

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