A horizontal tensile testing machine

Abstract

The present invention discloses a horizontal tensile testing machine, which includes an electronic loading system, an electro-hydraulic servo loading system, a guide rail assembly, two sets of moving beam assemblies and two sets of moving carriage assemblies. The electronic loading system and the electro-hydraulic servo loading system are respectively arranged at both ends of the guide rail assembly. Moving carriage assemblies are provided between the electronic loading system and the moving beam assembly, and between the electro-hydraulic servo loading system and the moving beam assembly; the guide rail assembly includes an upper guide rail, a lower guide rail located directly below the upper guide rail, and a number of L-shaped suspension beams for supporting the upper guide rail. The upper guide rail is connected to the lower end of the cross beam of the suspension beam. The upper guide rail is parallel to the lower guide rail, and both the upper guide rail and the lower guide rail are provided with a number of connection holes; both the moving beam assembly and the moving carriage assembly can slide along the extension direction of the guide rail assembly and can be connected to the connection holes through connecting pieces. The equipment space is not blocked by the guide rail assembly and the moving beam assembly, and the testers can step into the equipment interior, simplifying the installation process of the test pieces.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical property detection, and more specifically to a horizontal tensile testing machine. Background Art

[0002] Tensile testing machines are used to test the mechanical properties of materials and products. According to the direction of force, tensile testing machines are mainly divided into vertical tensile testing machines and horizontal tensile testing machines.

[0003] Among them, the vertical tensile testing machine is limited by the height of the laboratory and the test space, and cannot test large-sized test pieces; the horizontal tensile testing machine is relatively not limited by the depth and width of the room, and can test large-sized and large-volume test pieces.

[0004] Most of the existing horizontal tensile testing machines are frame-type designs, with the loading system, load-bearing crossbeam and mobile beam at the same level, and a fixed protective net is installed on the equipment. Usually, a door is opened at the bottom of the side of the equipment for the inspection personnel to enter, or a ladder is set up on the mobile frame to enter the equipment by climbing over. Therefore, it is inconvenient to install and remove the test piece.

[0005] In summary, how to simplify the installation process of the test piece is a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a horizontal tensile testing machine, in which the equipment space is not blocked by the guide rail assembly and the moving beam assembly, and the inspection personnel can step into the interior of the equipment, which is conducive to simplifying the installation process of the test piece.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A horizontal tensile testing machine comprises an electronic loading system, an electro-hydraulic servo loading system, a guide rail assembly, two sets of mobile beam assemblies and two sets of mobile driving assemblies, wherein the electronic loading system and the electro-hydraulic servo loading system are respectively arranged at two ends of the guide rail assembly, and the mobile driving assemblies are arranged between the electronic loading system and the mobile beam assembly and between the electro-hydraulic servo loading system and the mobile beam assembly;

[0009] The guide rail assembly includes an upper guide rail, a lower guide rail located directly below the upper guide rail, and a plurality of L-shaped suspension beams for supporting the upper guide rail, wherein the upper guide rail is connected to the lower end of the crossbeam of the suspension beam, the upper guide rail is parallel to the lower guide rail, and the upper guide rail and the lower guide rail are both provided with a plurality of connection holes;

[0010] Both the movable beam assembly and the movable driving vehicle assembly can slide along the extension direction of the guide rail assembly, and both can be connected to the connection holes through connecting pieces.

[0011] Preferably, the connection holes include pin holes evenly distributed along the extension direction of the guide rail assembly.

[0012] Preferably, the movable beam assembly includes a movable beam frame body, a pull rod assembly for connecting with a tensile connection seat, and an automatic pin insertion assembly. Both the pull rod assembly and the automatic pin insertion assembly are connected to the movable beam frame body;

[0013] The automatic pin insertion assembly includes a pin, a driving rod for driving the pin to move in the height direction, an electric push rod, a swing arm connected to the electric push rod, a connection disk coaxially arranged with the swing arm, and a connecting rod connecting the driving rod and the connection disk;

[0014] When the electric push rod extends or contracts, the swing arm drives the connection disk to rotate counterclockwise or clockwise, and the connecting rod pushes the driving rod to drive the pin to withdraw from or insert into the connection hole.

[0015] Preferably, the driving rod includes an upper driving rod for driving the pin to connect with the upper guide rail and a lower driving rod for driving the pin to connect with the lower guide rail. The connecting rod includes an upper connecting rod connecting the upper driving rod and the connection disk and a lower connecting rod connecting the lower driving rod and the connection disk. The upper connecting rod and the lower connecting rod are symmetrically arranged about the center of the circle of the connection disk.

[0016] Preferably, the number of the pull rod assemblies is three groups, and the distances between adjacent two groups of the pull rod assemblies are the same.

[0017] Preferably, the electro-hydraulic servo loading system is provided with a lifting assembly for driving the hydraulic cylinder to move in the height direction.

[0018] Preferably, an I-beam and an electric hoist for lifting a test piece are provided at the lower end of the cross beam of the suspension beam. The electric hoist is connected to the I-beam and can travel along the extension direction of the I-beam.

[0019] Preferably, an image acquisition system for acquiring image information of the test piece and a liquid crystal display system for displaying test data are provided on the upper guide rail. Both the image acquisition system and the liquid crystal display system are signal-connected to a PC control terminal.

[0020] Since the L-shaped suspension beam is arranged on one side of the guide rail assembly, and both the moving beam assembly and the moving driving assembly can slide relative to the guide rail assembly, the equipment space of the horizontal tensile testing machine provided by the present invention is not blocked by the guide rail assembly and the moving beam assembly, the test space is large, the test personnel can walk into the equipment interior, and the test piece can be installed by a trolley or even a forklift, greatly simplifying the installation process of the test piece.

[0021] Meanwhile, two loading systems are arranged at both ends of the horizontal tensile testing machine, which can not only perform simultaneous two-side loading detection on small-sized test pieces, but also close one end to detect large-sized test pieces, with high detection efficiency and wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0023] Figure 1 It is a schematic structural diagram of a specific embodiment of the horizontal tensile testing machine provided by the present invention;

[0024] Figure 2 It is a schematic cross-sectional view of the guide rail assembly in the side view direction;

[0025] Figure 3 It is a front view schematic diagram of the moving beam assembly.

[0026] Figures 1 - 3 Wherein:

[0027] 1 is the guide rail assembly, 11 is the guide rail, 12 is the suspension beam, 2 is the electronic loading system, 3 is the electro-hydraulic servo loading system, 4 is the moving driving assembly, 5 is the moving beam assembly, 51 is the moving beam frame body, 52 is the tie rod assembly, 53 is the automatic latch assembly, 531 is the latch, 532 is the driving rod, 533 is the connecting rod, 534 is the connecting disc, 535 is the swing arm, 536 is the electric push rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] The core of the present invention is to provide a horizontal tensile testing machine, where the equipment space is not blocked by the guide rail assembly and the moving beam assembly, and testers can walk into the interior of the equipment, which is conducive to simplifying the installation process of test pieces.

[0030] Please refer to Figures 1 - 3 , Figure 1 which is a schematic structural diagram of a specific embodiment of the horizontal tensile testing machine provided by the present invention; Figure 2 which is a sectional view of the guide rail assembly in the side view direction; Figure 3 which is a front view schematic diagram of the moving beam assembly.

[0031] The horizontal tensile testing machine provided by the present invention includes an electronic loading system 2, an electro-hydraulic servo loading system 3, a guide rail assembly 1, two sets of moving beam assemblies 5, and two sets of moving carriage assemblies 4. The electronic loading system 2 and the electro-hydraulic servo loading system 3 are respectively arranged at both ends of the guide rail assembly 1. Moving carriage assemblies 4 are provided between the electronic loading system 2 and the moving beam assembly 5, and between the electro-hydraulic servo loading system 3 and the moving beam assembly 5; The guide rail assembly 1 includes an upper guide rail, a lower guide rail located directly below the upper guide rail, and a number of L-shaped suspension beams 12 for supporting the upper guide rail. The upper guide rail is connected to the lower end of the cross beam of the suspension beam 12. The upper guide rail is parallel to the lower guide rail, and both the upper guide rail and the lower guide rail are provided with a number of connection holes; The moving beam assembly 5 and the moving carriage assembly 4 can both slide along the extending direction of the guide rail assembly 1, and both can be connected to the connection holes through connectors.

[0032] Among them, the electronic loading system 2 and the electro-hydraulic servo loading system 3 can be collectively referred to as the loading system, and both are used to apply loads to test pieces; The moving carriage assembly 4 is provided with a connecting column. One end of the connecting column close to the loading system is connected to the main load sensor and the moving cross beam of the electronic loading system 2 / the hydraulic cylinder of the electro-hydraulic servo loading system 3, and the other end is provided with a multi-hole connecting disk that can be connected to load sensors of various different specifications; The moving beam assembly 5 is connected to the end of the test piece through a tie rod assembly 52. The moving beam assembly 5, the guide rail assembly 1, and the end beam of the loading system together form the load-bearing frame of the horizontal tensile testing machine.

[0033] The guide rail assembly 1 mainly includes an upper guide rail, a lower guide rail, and a suspension beam 12 for supporting the upper guide rail. The upper guide rail and the lower guide rail are collectively referred to as the guide rail 11. Please refer to Figure 2 , where the upper guide rail is connected to the lower end of the cross beam of the suspension beam 12, the lower guide rail is cast integrally with the ground, and the size of the guide rail 11 and the connection method between the upper guide rail and the suspension beam 12 are determined according to actual test requirements and will not be elaborated here.

[0034] In order to avoid blocking testers and hydraulic equipment from entering the horizontal tensile testing machine, the suspension beam 12 is L-shaped and arranged at one end of the guide rail 11. Therefore, testers and hydraulic equipment can enter the interior of the equipment through the end of the guide rail 11 where the suspension beam 12 is not provided.

[0035] The specific structure, dimensions, material, connection method, etc. of the suspension beam 12 are determined with reference to the prior art according to the actual test requirements, and will not be elaborated here.

[0036] Preferably, the suspension beams 12 can be arranged uniformly along the extension direction of the upper guide rail, so that the supporting forces received by each point of the upper guide rail are relatively uniform, thereby enhancing the overall stability of the guide rail assembly 1.

[0037] The electronic loading system 2 and the electro-hydraulic servo loading system 3 respectively use a servo motor and a high-pressure hydraulic source as the power source. Among them, the electronic loading system 2 has a relatively high force measurement accuracy, which can reach 0.2%, is small in size, light in weight, and is convenient for loading corresponding devices to conduct various material mechanics tests. The test speed is adjustable and the speed control is flexible; the electro-hydraulic servo loading system 3 is limited by the oil source flow rate and has a relatively low test speed, and the force value accuracy can reach 0.5%. It has stronger reliability and stability for the material mechanics tests of large-volume and large-tonnage test pieces.

[0038] In order to realize the loading of test pieces with different heights, preferably, the electro-hydraulic servo loading system 3 is provided with a lifting component for driving the hydraulic cylinder to move in the height direction. The lifting component can specifically be set as a common linear displacement mechanism such as a ball screw structure or a guide rail slider structure.

[0039] Both the moving driving vehicle component 4 and the moving beam component 5 can slide along the guide rail assembly 1. Specifically, they can be provided with sliders cooperating with the guide rail 11 at both the upper and lower ends, or they can be provided with wheel assemblies cooperating with the guide rail at both the upper and lower ends.

[0040] The moving driving vehicle component 4 and the moving beam component 5 are connected to the connection holes on the guide rail assembly 1 through connecting pieces to fix the positions of the moving driving vehicle component 4 and the moving beam component 5. The connection holes and their cooperating connecting pieces can be pin holes and pins, or can be bolt holes and fastening bolts.

[0041] Preferably, the connection holes can include pin holes uniformly distributed along the extension direction of the guide rail assembly 1. By changing the positions of the pin holes for pin connection with both the moving driving vehicle component 4 and the moving beam component 5, the tensile test of test pieces with different lengths can be realized.

[0042] In addition, the pin connection method is simple and convenient for disassembly, which is beneficial to simplifying the installation and disassembly process of the test piece.

[0043] The diameter of the pin hole is obtained by calculating the designed connection strength of the guide rail assembly 1 and the moving driving vehicle component 4 / moving beam component 5, and the distance between adjacent two pin holes needs to be reasonably set according to the length range of the test piece.

[0044] In this embodiment, the L-shaped suspension beam 12 is arranged on one side of the guide rail assembly 1. Both the moving beam assembly 5 and the moving driving assembly 4 can slide relative to the guide rail assembly 1. The equipment space of the horizontal tensile testing machine is not blocked by the guide rail assembly 1 and the moving beam assembly 5, providing a large test space. The test personnel can walk into the equipment interior, and the test piece can be installed by a trolley or even a forklift, greatly simplifying the installation process of the test piece.

[0045] Meanwhile, two loading systems are arranged at both ends of the horizontal tensile testing machine, which can not only perform simultaneous two-side loading detection on small-sized test pieces, but also close one end to detect large-sized test pieces, with high detection efficiency and wide application range.

[0046] Preferably, an I-beam and an electric hoist for lifting the test piece are provided at the lower end of the cross beam of the suspension beam 12. The electric hoist is connected to the I-beam and can move along the extension direction of the I-beam. Therefore, the electric hoist can be used to lift the test piece, facilitating the installation and disassembly of the test piece.

[0047] The specific type, model, connection position, etc. of the electric hoist are determined according to the actual test requirements and will not be elaborated here.

[0048] Preferably, an image acquisition system for collecting the image information of the test piece and a liquid crystal display system for displaying test data are provided on the upper guide rail. Both the image acquisition system and the liquid crystal display system are signal-connected to the PC control terminal.

[0049] The image acquisition system can facilitate the test personnel to observe the shape and deformation form of the test piece; the liquid crystal display system can synchronously display test data such as the test type, test force value, test maximum peak value, test date, etc. of the PC control terminal, facilitating the customer to remotely observe the data outside the test room.

[0050] Preferably, the image acquisition system includes a 360° rotatable high-definition camera, which can automatically focus and rotate automatically, facilitating the shooting of image data of each surface of the test piece. The specific type, model, installation position, connection method, etc. of the high-definition camera are determined with reference to the prior art according to the actual test requirements and will not be elaborated here.

[0051] Based on the above embodiments, the structure of the moving beam assembly 5 is defined. The moving beam assembly 5 includes a moving beam frame 51, a tie rod assembly 52 for connecting with the tensile connection seat, and an automatic latch assembly 53. Both the tie rod assembly 52 and the automatic latch assembly 53 are connected to the moving beam frame 51. The automatic latch assembly 53 includes a latch 531, a driving rod 532 for driving the latch 531 to move in the height direction, an electric push rod 536, a swing arm 535 connected to the electric push rod 536, a connection disk 534 coaxially arranged with the swing arm 535, and a connecting rod 533 connecting the driving rod 532 and the connection disk 534. When the electric push rod 536 extends or contracts, the swing arm 535 drives the connection disk 534 to rotate counterclockwise or clockwise, and the connecting rod 533 pushes the driving rod 532 to drive the latch 531 to withdraw from or insert into the connection hole.

[0052] Please refer to Figure 3 , the moving beam frame 51 is in an I shape. The moving beam frame 51 is the main frame of the moving beam assembly 5, and the moving beam frame 51, the loading system, and the guide rail assembly 1 together form the self-supporting frame of the horizontal tensile testing machine. In order to move the moving beam assembly 5, wheel assemblies are provided at both the upper and lower ends of the moving beam frame 51 so that the moving beam assembly 5 can move along the extension direction of the guide rail assembly 1.

[0053] Preferably, a support wheel assembly is provided at the upper end of the moving beam frame 51, and a support wheel assembly and a driving wheel assembly are provided at the lower end of the moving beam frame 51. The driving wheel assembly includes a driving wheel and a driving motor for driving the driving wheel to rotate. The driving motor is signal-connected to the PC control end of the horizontal tensile testing machine.

[0054] The specific structures, dimensions, materials, installation positions, connection methods, etc. of the support wheel assembly and the driving wheel assembly are determined with reference to the prior art according to actual test requirements and will not be elaborated here.

[0055] When the moving beam frame 51 needs to move, the PC control end transmits a control signal to the driving motor. The driving motor drives the driving wheel to move in the corresponding direction along the guide rail assembly 1 and stops after reaching the preset position, thereby realizing the automatic movement of the moving beam assembly 5.

[0056] The tie rod assembly 52 is connected to the test piece through a tensile connection seat. To buffer the impact when the test piece is broken by tension, a rubber pad is preferably provided on the tie rod assembly 52. Please refer to Figure 3 , the number of the tie rod assemblies 52 is three groups, and the distances between adjacent two groups of tie rod assemblies 52 are the same. By providing multiple groups of tie rod assemblies 52, the loading requirements of test pieces with different heights are met.

[0057] The specific height of the tie rod assembly 52 is determined according to actual test requirements. For example, the three groups of tie rod assemblies 52 can be respectively arranged at 600 mm, 900 mm, and 1200 mm from the ground.

[0058] The automatic latch assembly 53 is used to realize the automatic insertion and extraction of the latch 531, thereby realizing the automatic connection and disconnection between the moving beam assembly 5 and the guide rail assembly 1. Compared with the existing manual positioning of the latch 531, the workload of the test personnel is effectively reduced, and the installation and commissioning efficiency of the equipment is improved.

[0059] Considering factors such as volume and connection structure, an electric push rod 536 is preferably used as the power source of the automatic latch assembly 53; the structures, dimensions, materials, installation positions and connection methods of the electric push rod 536, swing arm 535, connection disk 534, connecting rod 533 and driving rod 532 are determined according to actual test requirements and will not be elaborated here.

[0060] Please refer to Figure 1 , taking the latch 531 connected to the upper guide rail as an example. When the electric push rod 536 extends, the moving end of the push rod moves upward. Since one end of the swing arm 535 is coaxially arranged with the center of the connection disk 534 and the other end is connected to the moving end of the push rod, the swing arm 535 rotates counterclockwise, driving the connection disk 534 to rotate counterclockwise. The connecting rod 533 moves from the highest point to the lowest point of the connection disk 534, driving the driving rod 532 to move downward, so that the latch 531 is withdrawn from the connection hole of the upper guide rail, and the moving beam assembly 5 can slide relative to the guide rail assembly 1.

[0061] Conversely, when the electric push rod 536 shortens, the moving end of the push rod moves downward, causing the swing arm 535 to drive the connection disk 534 to rotate clockwise. The connecting rod 533 moves from the lowest point to the highest point of the connection disk 534, driving the driving rod 532 to move upward, so that the latch 531 is inserted into the connection hole of the upper guide rail, and the moving beam assembly 5 is fixedly connected to the guide rail assembly 1.

[0062] In this embodiment, by setting the automatic latch assembly 53, the automatic connection and disconnection between the moving beam assembly 5 and the guide rail assembly 1 are realized. Compared with manually inserting and extracting the latch 531, the workload of the test personnel is effectively reduced, and the installation and commissioning efficiency of the equipment is improved.

[0063] A set of automatic latch assemblies 53 can correspond to one latch 531, or can also correspond to the upper and lower two latches 531 on the same side of the moving beam frame 51.

[0064] Preferably, please refer to Figure 3 , the driving rod 532 includes an upper driving rod for driving the latch 531 to connect with the upper guide rail and a lower driving rod for driving the latch 531 to connect with the lower guide rail. The connecting rod 533 includes an upper connecting rod connecting the upper driving rod and the connection disk 534 and a lower connecting rod connecting the lower driving rod and the connection disk 534. The upper connecting rod and the lower connecting rod are symmetrically arranged about the center of the connection disk 534.

[0065] Preferably, the center of the connecting plate 534 can be set at the 1 / 2 height of the moving beam frame 51.

[0066] Therefore, a set of automatic latch components 53 can simultaneously drive the upper and lower two latches 531 on the same side of the moving beam frame 51, reducing the number of electric push rods 536, swing arms 535 and connecting plates 534, simplifying the structure of the moving beam assembly 5, and reducing the overall mass and volume of the moving beam assembly 5.

[0067] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is the difference from other embodiments. The same and similar parts among the embodiments can be referred to each other.

[0068] The horizontal tensile testing machine provided by the present invention has been introduced in detail above. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A horizontal tensile testing machine, characterized in that, it includes an electronic loading system (2), an electro-hydraulic servo loading system (3), a guide rail assembly (1), two sets of moving beam assemblies (5) and two sets of moving carriage assemblies (4). The electronic loading system (2) and the electro-hydraulic servo loading system (3) are respectively arranged at both ends of the guide rail assembly (1). Moving carriage assemblies (4) are provided between the electronic loading system (2) and the moving beam assembly (5), and between the electro-hydraulic servo loading system (3) and the moving beam assembly (5); The guide rail assembly (1) includes an upper guide rail, a lower guide rail located directly below the upper guide rail, and several L-shaped suspension beams (12) for supporting the upper guide rail. The upper guide rail is connected to the lower end of the cross beam of the suspension beam (12). The upper guide rail is parallel to the lower guide rail, and both the upper guide rail and the lower guide rail are provided with several connecting holes; Both the moving beam assembly (5) and the moving carriage assembly (4) can slide along the extending direction of the guide rail assembly (1), and both can be connected to the connecting holes through connecting pieces; The moving beam assembly (5) includes a moving beam frame body (51), a pull rod assembly (52) for connecting with a tensile connection seat, and an automatic bolt assembly (53). The pull rod assembly (52) and the automatic bolt assembly (53) are both connected to the moving beam frame body (51); The automatic bolt assembly (53) includes a bolt (531), a driving rod (532) for driving the bolt (531) to move in the height direction, an electric push rod (536), a swing arm (535) connected to the electric push rod (536), a connection disk (534) coaxially arranged with the swing arm (535), and a connecting rod (533) connecting the driving rod (532) and the connection disk (534); When the electric push rod (536) extends or contracts, the swing arm (535) drives the connection disk (534) to rotate counterclockwise or clockwise, and the connecting rod (533) pushes the driving rod (532) to drive the bolt (531) to withdraw from or insert into the connecting hole; The driving rod (532) includes an upper driving rod for driving the bolt (531) to connect with the upper guide rail and a lower driving rod for driving the bolt (531) to connect with the lower guide rail. The connecting rod (533) includes an upper connecting rod connecting the upper driving rod and the connection disk (534) and a lower connecting rod connecting the lower driving rod and the connection disk (534). The upper connecting rod and the lower connecting rod are symmetrically arranged about the center of the connection disk (534); A connecting column is provided on the moving carriage assembly (4). One end of the connecting column close to the loading system is connected to the main load sensor and the moving cross beam of the electronic loading system (2) / the hydraulic cylinder of the electro-hydraulic servo loading system (3), and the other end is provided with a multi-hole connection disk that can be connected to load sensors of various different specifications; The moving beam assembly (5) is connected to the end of the test piece through the pull rod assembly (52).

2. The horizontal tensile testing machine according to claim 1, It is characterized in that the connecting holes include pin holes evenly distributed along the extension direction of the guide rail assembly (1).

3. The horizontal tensile testing machine according to claim 2 It is characterized in that the number of the pull rod assemblies (52) is three groups, and the distances between adjacent two groups of the pull rod assemblies (52) are the same.

4. The horizontal tensile testing machine according to any one of claims 1-3 It is characterized in that the electro-hydraulic servo loading system (3) is provided with a lifting assembly for driving the hydraulic cylinder to move in the height direction.

5. The horizontal tensile testing machine according to any one of claims 1-3 It is characterized in that at the lower end of the cross beam of the suspension beam (12), there are an I-beam and an electric hoist for lifting the test piece, and the electric hoist is connected to the I-beam and can travel along the extension direction of the I-beam.

6. The horizontal tensile testing machine according to claim 5 It is characterized in that the upper guide rail is provided with an image acquisition system for acquiring the image information of the test piece and a liquid crystal display system for displaying test data, and both the image acquisition system and the liquid crystal display system are signal-connected to the PC control terminal.

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