Electro-hydraulic servo double cylinder loading double sensor acquisition double space horizontal push fixture testing machine

Abstract

The utility model provides an electro-hydraulic servo dual-cylinder loading dual-sensor acquisition dual-space horizontal push fixture testing machine, including a lower base and an upper fixed beam, the lower base and the upper fixed beam are fixedly connected by a plurality of guide bearing columns; a load-bearing movable beam that slides with the guide bearing columns is installed between the lower base and the upper fixed beam; a lower hydraulic horizontal push fixture and an upper hydraulic horizontal push fixture are installed on the upper surface of the lower base and the lower surface of the load-bearing movable beam respectively; a dual-servo hydraulic synchronous loading system is installed between the lower base and the load-bearing movable beam, and the dual-servo hydraulic synchronous loading system is composed of servo hydraulic cylinders and load sensors located on both sides of the lower hydraulic horizontal push fixture and the upper hydraulic horizontal push fixture respectively. The utility model adopts a dual-servo hydraulic synchronous loading system to achieve accurate and stable loading of the specimen; the configuration of the dual-servo hydraulic cylinders and load sensors makes data collection during the test more accurate.

Description

Technical Field

[0001] The utility model relates to the field of mechanical testing equipment, in particular to an electro-hydraulic servo double-cylinder loading double-sensor collecting double-space horizontal push fixture testing machine. Background Art

[0002] Universal testing machine is a kind of equipment widely used in mechanical property testing of materials. It can realize various mechanical property tests such as tension, compression, bending, etc. of various materials under different conditions. However, the existing universal testing machines often have problems such as low test accuracy, complex operation, and low automation during the testing process, which makes it difficult to meet the requirements of modern materials science research for high-precision and high-efficiency testing equipment.

[0003] Therefore, how to improve the existing universal testing machine, improve its testing accuracy and automation, and simplify the operation process is a technical problem that needs to be solved urgently in this field.

[0004] In view of the above problems, the utility model proposes an electro-hydraulic servo dual-cylinder loading dual-sensor acquisition dual-space horizontal push fixture testing machine, which aims to solve the problems existing in the prior art and improve the performance and user experience of the testing machine. Utility Model Content

[0005] The utility model provides an electro-hydraulic servo double-cylinder loading double-sensor acquisition double-space horizontal push fixture testing machine, the double-space horizontal push fixture testing machine comprises a lower base and an upper fixed beam arranged in parallel up and down, the four corners of the lower base are provided with mounting feet, the mounting feet fix the base on a table or the ground by screws, the lower base and the upper fixed beam are fixedly connected by a plurality of guide bearing columns;

[0006] A load-bearing movable crossbeam is installed between the lower base and the upper fixed crossbeam, and the load-bearing movable crossbeam is provided with a plurality of guide holes, and a linear bearing that is slidably matched with the guide load-bearing column is fixedly installed in the guide hole;

[0007] A lower hydraulic flat-push fixture and an upper hydraulic flat-push fixture are respectively installed on the upper surface of the lower base and the lower surface of the load-bearing movable crossbeam, and a clamping groove with openings facing each other and used for installing a clamping block is provided on the upper surface of the lower hydraulic flat-push fixture and the lower surface of the upper hydraulic flat-push fixture;

[0008] A dual servo hydraulic synchronous loading system is installed between the lower base and the load-bearing movable crossbeam. The dual servo hydraulic synchronous loading system consists of a servo hydraulic cylinder and a load sensor respectively located on both sides of the lower hydraulic push clamp and the upper hydraulic push clamp. The servo hydraulic cylinder is provided with a cylinder barrel and a piston rod. The cylinder barrel is fixedly installed on the lower surface of the load-bearing movable crossbeam, and the piston rod is connected to the load sensor fixed on the upper surface of the lower base.

[0009] Furthermore, four guide bearing columns are fixedly connected between the lower base and the upper fixed crossbeam;

[0010] The four corners of the lower base and the upper fixed beam are provided with column mounting holes for the guide bearing column to pass through, and each column mounting hole is arranged in a strip groove connected to the outer edge of the lower base or the upper fixed beam, and the strip groove is provided with a row of locking screws for fixing the lower base or the upper fixed beam to the guide bearing column.

[0011] Furthermore, the lower hydraulic push fixture and the upper hydraulic push fixture are both provided with a mounting base, and both sides of the mounting base are fixedly connected to the lower base or the load-bearing movable crossbeam through a row of screws.

[0012] The advantages of the utility model are:

[0013] 1) The electro-hydraulic servo dual-cylinder loading dual-sensor acquisition dual-space horizontal push fixture testing machine provided by the utility model adopts a dual-servo hydraulic synchronous loading system to achieve accurate and stable loading of the specimen, effectively improving the test accuracy. At the same time, the configuration of the dual-servo hydraulic cylinder and load sensor makes the data collection during the test more accurate, providing more reliable experimental data for scientific researchers.

[0014] 2) The utility model adopts a double-space horizontal push fixture design, which makes the working space between the upper and lower fixtures larger and can adapt to more types of specimens for testing. At the same time, the relative opening design of the clamping slot makes the installation and replacement of the clamping block more convenient, improving the use efficiency of the testing machine.

[0015] 3) The utility model adopts the cooperation of the guide bearing column and the linear bearing between the lower base and the upper fixed beam, so that the bearing movable beam runs smoothly during the lifting process, reducing the error caused by friction. In addition, the fixed connection between the guide bearing column and the lower base and the upper fixed beam makes the structure of the testing machine more stable and improves the stability of the equipment.

[0016] 4) By replacing the clamping blocks of different specifications, it is possible to test specimens of different sizes and shapes. These designs make the testing machine more flexible and adaptable in practical applications.

[0017] The electro-hydraulic servo double-cylinder loading double-sensor collecting double-space horizontal push fixture testing machine provided by the utility model has significant advantages in test accuracy, stability, operation convenience and practicality, and can meet the high requirements of modern material science research on testing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a stereoscopic diagram of an electro-hydraulic servo double-cylinder loading double-sensor acquisition double-space horizontal push fixture testing machine of the utility model;

[0020] Figure 2 This is a front view of an electro-hydraulic servo double-cylinder loading double-sensor acquisition double-space horizontal push fixture testing machine of the utility model. DETAILED DESCRIPTION

[0021] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0022] In order to thoroughly understand the present invention, detailed steps and detailed structures will be presented in the following description to illustrate the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0023] Reference Figure 1-2 As shown, the utility model provides an electro-hydraulic servo dual-cylinder loading dual-sensor collecting dual-space horizontal push fixture testing machine, the dual-space horizontal push fixture testing machine 100 includes a lower base 110 and an upper fixed beam 120 arranged in parallel up and down, the lower base 110 is provided with mounting feet 111 at the four corners, the mounting feet 111 fix the base to the table or the ground by screws, the lower base 110 and the upper fixed beam 120 are fixedly connected by a plurality of guide bearing columns 130.

[0024] A load-bearing movable beam 140 is installed between the lower base 110 and the upper fixed beam 120, and is slidably matched with the guide load-bearing column 130. The load-bearing movable beam 140 is provided with a plurality of guide holes, and a linear bearing 131 is fixedly installed in the guide hole, and is slidably matched with the guide load-bearing column 130. The linear bearing 131 cooperates with the guide load-bearing column 130, so that the load-bearing movable beam 140 can stably slide between the lower base 110 and the upper fixed beam 120, and at the same time ensure that the absolute sliding direction does not deviate.

[0025] A lower hydraulic push clamp 150 and an upper hydraulic push clamp 160 are respectively installed on the upper surface of the lower base 110 and the lower surface of the supporting movable beam 140. The upper surface of the lower hydraulic push clamp 150 and the lower surface of the upper hydraulic push clamp 160 are both provided with clamping grooves 151 with openings facing each other and used for installing clamping blocks.

[0026] A dual servo hydraulic synchronous loading system 170 is installed between the lower base 110 and the load-bearing moving beam 140. The dual servo hydraulic synchronous loading system 170 is composed of a servo hydraulic cylinder 171 and a load sensor 174 located on both sides of the lower hydraulic flat-pushing fixture 150 and the upper hydraulic flat-pushing fixture 160, respectively. The servo hydraulic cylinder 171 is provided with a cylinder barrel 172 and a piston rod 173. The cylinder barrel 172 is fixedly mounted on the lower surface of the load-bearing moving beam 140, and the piston rod 173 is connected to the load sensor 174 fixed on the upper surface of the lower base 110. During the loading process, by controlling the rotation of the servo motor, the oil pump sends the hydraulic oil in the oil tank into the cylinder body of the dual cylinder loading device, pushing the piston and the piston rod downward, thereby loading the sample. Due to the use of the dual cylinder loading device, uniform loading of the sample can be achieved, and the accuracy of the test can be improved.

[0027] In the present invention, a stretching space is formed between the lower hydraulic horizontal push fixture 150 and the upper hydraulic horizontal push fixture 160, and a compression, bending, and shearing space is formed between the upper end of the load-bearing movable beam 140 and the lower end of the upper fixed beam 120. Through the dual servo hydraulic synchronous loading system, the combined value of the force value collected by the dual load sensor 174 is taken as the experimental value. The present invention is simple to operate, easy to install and maintain, has a small overall occupied height, high overall machine rigidity, high test accuracy, and is easy to repair and maintain.

[0028] In an optional embodiment, four guide bearing columns 130 are fixedly connected between the lower base 110 and the upper fixed beam 120; the four corners of the lower base 110 and the upper fixed beam 120 are provided with column mounting holes 112 for the guide bearing columns 130 to pass through, and each column mounting hole 112 is provided in a strip groove 113 connected to the outer edge of the lower base 110 or the upper fixed beam 120, and the strip groove is provided with a row of locking screws 114 for fixing the lower base 110 or the upper fixed beam 120 to the guide bearing columns 130.

[0029] In an optional embodiment, the lower hydraulic horizontal push clamp 150 and the upper hydraulic horizontal push clamp 160 are both provided with a mounting base 152, and both sides of the mounting base 152 are fixedly connected to the lower base 110 or the load-bearing movable beam 140 through a row of screws.

[0030] The utility model improves the test accuracy and automation by adopting the design of electro-hydraulic servo double cylinder loading double sensor acquisition double space horizontal push fixture, while simplifying the operation process. Through precise loading and unloading control, as well as real-time force and displacement data acquisition, comprehensive and accurate testing of the mechanical properties of materials can be achieved. In addition, by replacing different clamping blocks, the clamping method and strength can be adjusted, which can adapt to different types and specifications of specimens, improving the versatility and flexibility of the testing machine.

[0031] The above describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the above-mentioned specific implementation methods, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the utility model without departing from the scope of the technical solution of the utility model, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. An electro-hydraulic servo double-cylinder loading double-sensor acquisition double-space horizontal push fixture testing machine, characterized in that: The double-space horizontal push fixture testing machine (100) comprises a lower base (110) and an upper fixed beam (120) arranged in parallel up and down, the lower base (110) is provided with mounting feet (111) at four corners, the mounting feet (111) fix the base on a table or the ground by screws, and the lower base (110) and the upper fixed beam (120) are fixedly connected by a plurality of guide bearing columns (130); A load-bearing movable crossbeam (140) that is slidably matched with the guide load-bearing column (130) is installed between the lower base (110) and the upper fixed crossbeam (120); the load-bearing movable crossbeam (140) is provided with a plurality of guide holes, and a linear bearing (131) that is slidably matched with the guide load-bearing column (130) is fixedly installed in the guide hole; A lower hydraulic push fixture (150) and an upper hydraulic push fixture (160) are respectively installed on the upper surface of the lower base (110) and the lower surface of the load-bearing movable crossbeam (140); the upper surface of the lower hydraulic push fixture (150) and the lower surface of the upper hydraulic push fixture (160) are both provided with clamping grooves (151) with openings facing each other and used for installing clamping blocks; A dual servo hydraulic synchronous loading system (170) is installed between the lower base (110) and the load-bearing movable crossbeam (140). The dual servo hydraulic synchronous loading system (170) is composed of a servo hydraulic cylinder (171) and a load sensor (174) respectively located on both sides of the lower hydraulic push fixture (150) and the upper hydraulic push fixture (160). The servo hydraulic cylinder (171) is provided with a cylinder barrel (172) and a piston rod (173). The cylinder barrel (172) is fixedly installed on the lower surface of the load-bearing movable crossbeam (140), and the piston rod (173) is connected to the load sensor (174) fixed on the upper surface of the lower base (110).

2. The electro-hydraulic servo double-cylinder loading double-sensor acquisition double-space horizontal push fixture testing machine as described in claim 1, characterized in that: Four guide bearing columns (130) are fixedly connected between the lower base (110) and the upper fixed crossbeam (120); The four corners of the lower base (110) and the upper fixed beam (120) are provided with column mounting holes (112) for the guide bearing column (130) to pass through, and each column mounting hole (112) is provided in a strip groove (113) connected to the outer side of the lower base (110) or the upper fixed beam (120), and the strip groove is provided with a row of locking screws (114) for fixing the lower base (110) or the upper fixed beam (120) to the guide bearing column (130).

3. The electro-hydraulic servo double-cylinder loading double-sensor collecting double-space horizontal push fixture testing machine as described in claim 1, characterized in that: The lower hydraulic push fixture (150) and the upper hydraulic push fixture (160) are both provided with a mounting base (152), and both sides of the mounting base (152) are fixedly connected to the lower base (110) or the load-bearing movable crossbeam (140) via a row of screws.

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