The main structure and working principle of the testing machine
The main structure and working principle of the testing machine
The testing machine consists of two parts: the main engine and the force measuring system, which are connected by a high-pressure hose. The host is mainly composed of a base, a workbench, a column, a lead screw, a movable beam and an upper beam. The upper part of the movable beam is provided with a lower jaw, the lower part is provided with an upper pressure plate, and the lower part of the upper beam is provided with an upper jaw. The workbench and the upper beam are connected by two uprights to form a rigid frame. The worktable is connected with the piston, and the moving beam is connected to the lead screw through a transmission nut, and moves up and down with the rotation of the lead screw. The drive mechanism of the lead screw is composed of a drive motor, a sprocket, and a chain. The drive motor drives the two lead screws to rotate synchronously through a chain drive. The high-pressure oil pump supplies oil to the cylinder to raise the piston, which drives the worktable to move upwards, so as to perform tensile, shear and compression tests of the specimen. Tensile and shear tests are carried out between the moving beam and the upper beam, and the compression test is carried out between the workbench and the moving beam. Oil delivery valve, the delivery valve is a shunt type flow regulating valve, which is composed of a variable throttle and a fixed differential pressure reducing valve in parallel. Oil return buffer valve The oil return buffer valve consists of an unloading switch and a return throttle valve. Its purpose is to unload the load and make the oil pressure of the working cylinder drop rapidly. The principle of the hydraulic system, the oil in the oil tank is sucked into the oil pump and sent to the oil delivery valve through the oil pump outlet pipe. When the oil delivery valve is completely closed, the oil pressure rises until the fixed differential pressure reducing valve is opened, and the pressure oil enters through the solenoid valve Clamp the oil cylinder to control the clamping and loosening of the upper and lower jaws. When the oil delivery valve is opened, the pressure oil is sent into the working oil cylinder, and the piston in the oil cylinder can be raised. When the load of the working oil cylinder suddenly disappears (open the oil return valve or the sample breaks), the working oil cylinder is immediately unloaded. The testing machine force measurement system, all control calculations and state settings are completed by computer software. The software integrates the compression test of cement, mortar, brick, concrete, etc., as well as the test of concrete flexure, and is a five-in-one software. The measuring part of the testing machine, the measuring part belongs to electrical components, are installed on the host, mainly composed of force sensors, electronic extensometers, and drawstring sensors. Their function is to measure the test force of the material and the displacement and deformation of the material when it is stretched. Wait for measurement. The power drive part, the power drive part is a key component that provides the main engine with hydraulic pressure, which is mainly composed of a high-pressure gear pump, an electro-hydraulic servo valve, a high-pressure oil filter, a level gauge, an oil tank, a regulating valve, and a valve block.
Previous: What are the test methods of the steel bar bending test machine
Next: What is the working principle of the impact testing machine?
Hydraulic universal testing machines have very high accuracy requirements.
The hydraulic system is the power drive mechanism of the tensile testing machine.
The specific application of the electronic universal testing machine in the automobile manufacturing process: The electronic universal testing machine needs to be used for automobile parts.
Wave soldering refers to the molten solder (lead-tin alloy), sprayed by electric pump or electromagnetic pump into the solder wave required by the design, can also be formed by injecting nitrogen into the solder pool, so that it is pre-loaded The printed board of the component realizes the soft soldering of the mechanical and electrical connection between the solder end or the pin of the component and the pad of the printed board through the solder wave.
The frequency converter is a power control equipment that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply.
Electronic universal testing machine is a necessary equipment to control the quality of products.
The calibration operation of the electronic universal testing machine is still relatively unfamiliar to friends who use it for the first time.
Selective wave soldering defects and their prevention.
Testing machine, broadly speaking, is an instrument that verifies the quality or performance of a product or material according to the design requirements before it is put into use.
The tensile force is not an accurate value after being measured by the testing machine, and subsequent calculations are required to get the desired value.
Tel: 0086-0769-2318 4144
Mobile: 0086-137 2828 8444
Telephone: 0086-0769-23184144
E-Mail: mz@sinowon.com
Website: www.sinowon.com
Headquarter Address:
C1-508, Tian'an Cyber Park, #1 Glod Road, Nancheng, Dongguan, China (Post Code:523080)
Factory:
Unit 01, Building 7, No. 120, Liantang Road, Tangxia Town, Pengjiang District, Jiangmen, Guangdong, China (Post Code:529000)
International Trade Sector:
C1-501, Tianan, Gloden Road, Nancheng, Dongguan, Guangdong, China(Post Code:523080)
Copyright © 2025 Sinowon | All Rights Reserved.