Electronic type universal material tension testing machine

Abstract

The utility model discloses an electronic universal material tension testing machine which comprises a tension testing machine body, an upper clamping frame and a lower clamping frame, and further comprises a clamping mechanism, and the upper clamping frame and the lower clamping frame are respectively mounted at an upper pull rod and a bottom pull rod of the tension testing machine body; each clamping mechanism comprises an upper mounting hole, a lower mounting hole, an auxiliary mounting hole, a threaded rod, a rotary handle, a pressure plate, a middle rotary hole, a bottom bolt, an abutting block and a belt opening plate, the clamping mechanisms are improved at the upper clamping frame and the lower clamping frame of the tension tester body, and the pressure plates with annular grooves in the surfaces are arranged in frame bodies of the upper clamping frame and the lower clamping frame and can oppositely press and clamp a test material. The lower clamping frame is also provided with an opening plate which is matched with the pressure plate for secondary pressing and clamping, and a part of the clamped test material can enter annular grooves in the surfaces of the opening plate and the pressure plate, so that the material can be effectively ensured to be well clamped at the tension testing machine body of the electronic universal material tension testing machine for a tension test; and stable clamping of the material during a tension test is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of tension testing machines, in particular to an electronic universal material tension testing machine. Background Art

[0002] The electronic tensile testing machine is a product of the combination of modern electronic technology and mechanical transmission technology. It is a large-scale precision testing instrument that fully utilizes the respective strengths of electromechanics. It can perform multiple performance tests such as stretching, compression, and bending on various materials, and has the characteristics of wide measurement range, high precision, and fast response. It works reliably and efficiently, and can display, record, and print test data in real time. The electronic tensile testing machine is composed of a measurement system, a drive system, a control system, and a computer. The force value is measured through a force sensor, an amplifier, and a data processing system. The most commonly used force sensor is a strain gauge sensor.

[0003] When the electronic universal material tensile testing machine of the prior art is stretching the material, the material will be clamped oppositely by the clamp of the tensile testing machine. The clamping plates pushed oppositely by the threaded structure at the clamp can clamp the material for tensile testing. This simple clamping structure has a small clamping contact point for the material and poor clamping stability. When the material is clamped for tensile testing, it is easy to loosen. For this reason, we propose an electronic universal material tensile testing machine. Utility Model Content

[0004] The main purpose of the utility model is to provide an electronic universal material tensile testing machine, in which a clamping mechanism is improved and arranged at the upper clamping frame and the lower clamping frame of the tensile testing machine body, and pressure plates with annular grooves arranged on the surfaces of the upper clamping frame and the lower clamping frame can clamp the test material oppositely, and a mouth plate is also provided at the lower clamping frame to cooperate with the pressure plate for secondary clamping, and the mouth plate and the annular grooves on the surfaces of the pressure plate can enter part of the clamped test material, effectively ensuring that the material can be better clamped at the tensile testing machine body of the electronic universal material tensile testing machine for tensile testing, ensuring stable clamping of the material during tensile testing, and effectively solving the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An electronic universal material tensile testing machine comprises a tensile testing machine body, an upper clamping frame and a lower clamping frame, wherein the upper clamping frame and the lower clamping frame are respectively installed at the upper pull rod and the lower pull rod of the tensile testing machine body, and further comprises a clamping mechanism, wherein the clamping mechanism comprises an upper mounting hole, a lower mounting hole, an auxiliary mounting hole, a threaded rod, a rotary handle, a pressure plate, a middle rotary hole, a bottom bolt, a stop block and a plate with a mouth, wherein the upper clamping frame and the lower clamping frame are respectively provided with an upper mounting hole and a lower mounting hole at the vertical frame plates, and the lower mounting hole A secondary mounting hole is provided at the lower clamping frame at the bottom, and threaded rods are screwed on the hole bodies of the upper mounting hole, the lower mounting hole and the secondary mounting hole, and a rotating handle is welded on the outer rod body of the upper clamping frame and the lower clamping frame when the threaded rod is screwed out, and a pressure plate is welded on the rod body of the upper clamping frame and the lower clamping frame when the threaded rod is screwed into the rod body of the upper clamping frame and the lower clamping frame, a middle rotating hole for screwing a bottom bolt is provided on the frame plate of the lower clamping frame near the secondary mounting hole, and the bottom bolt is welded to the bottom of the block body of the block, and a plate with a mouth is welded on the plate surface of the block facing the secondary mounting hole.

[0007] Furthermore, the surface of the pressure plate is recessed with an annular groove; the pressure plate can form a concave point with the annular groove, and when the material is pressed between the pressure plates, the annular groove can squeeze the material in, making the material clamped between the pressure plates more firmly.

[0008] Furthermore, the surface of the plate with a mouth is arranged with strips facing the auxiliary mounting hole, and the plate with a mouth is welded to the surface of the block with a non-mouth plate; when the pressure plate presses the material toward the plate with a mouth, the material can enter the strips of the plate with a mouth, so that the material is firmly clamped.

[0009] Furthermore, the rod body length of the threaded rod is greater than the frame opening length of the upper clamping frame and the lower clamping frame, and the rod body of the threaded rod is a threaded cylinder; the rod body of the threaded rod can be screwed into the upper clamping frame and the lower clamping frame to clamp the material with the pressure plate, and the threaded rod of the threaded cylinder can be screwed into the threaded hole body of the upper mounting hole, the lower mounting hole and the auxiliary mounting hole for installation.

[0010] Furthermore, the block body of the butt block welded with the mouth plate is located on one side of the middle inner frame wall of the lower clamp frame, and the plate height after the butt block and the mouth plate are installed in the lower clamp frame is lower than the hole height of the lower mounting hole; when the threaded rod in the lower mounting hole rotates with the pressure plate, the pressure plate will not contact the butt block and the mouth plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model improves the clamping mechanism at the upper clamping frame and the lower clamping frame of the tensile testing machine body. The upper clamping frame and the lower clamping frame are provided with pressure plates with annular grooves on the surfaces thereof, which can clamp the test material oppositely. The lower clamping frame is also provided with a mouth plate to cooperate with the pressure plate for secondary clamping. The mouth plate and the annular grooves on the surfaces of the pressure plate can enter part of the clamped test material, effectively ensuring that the material can be better clamped at the tensile testing machine body of the electronic universal material tensile testing machine for tensile testing, thereby ensuring stable clamping of the material during the tensile test. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of an electronic universal material tensile testing machine.

[0014] Figure 2 The utility model is an exploded view of a clamping mechanism of an electronic universal material tensile testing machine.

[0015] In the figure: 1. Tensile testing machine body; 2. Upper clamping frame; 3. Lower clamping frame; 4. Clamping mechanism; 5. Upper mounting hole; 6. Lower mounting hole; 7. Auxiliary mounting hole; 8. Threaded rod; 9. Rotary handle; 10. Pressure plate; 11. Middle rotating hole; 12. Bottom bolt; 13. Stop block; 14. Plate with mouth; 15. Ring groove. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0017] like Figure 1-2 As shown, an electronic universal material tensile testing machine comprises a tensile testing machine body 1, an upper clamping frame 2 and a lower clamping frame 3, wherein the upper clamping frame 2 and the lower clamping frame 3 are respectively installed at the upper pull rod and the bottom pull rod of the tensile testing machine body 1, and further comprises a clamping mechanism 4, wherein the clamping mechanism 4 comprises an upper mounting hole 5, a lower mounting hole 6, an auxiliary mounting hole 7, a threaded rod 8, a rotary handle 9, a pressure plate 10, a middle rotary hole 11, a bottom bolt 12, a stop block 13 and a plate with a mouth 14, and the upper mounting hole 5 and the lower mounting hole 6 are respectively opened at the vertical frame plates of the upper clamping frame 2 and the lower clamping frame 3, and the lower mounting hole A secondary mounting hole 7 is provided at the lower clamping frame 3 below 6, and a threaded rod 8 is screwed on the hole bodies of the upper mounting hole 5, the lower mounting hole 6 and the secondary mounting hole 7, and a rotating handle 9 is welded at the outer rod body of the threaded rod 8 screwed out of the upper clamping frame 2 and the lower clamping frame 3, and a pressure plate 10 is welded at the rod body of the threaded rod 8 screwed into the upper clamping frame 2 and the lower clamping frame 3, and a middle rotating hole 11 for screwing a bottom bolt 12 is provided at the frame plate of the lower clamping frame 3 near the secondary mounting hole 7, and the bottom bolt 12 is welded to the bottom of the block 13, and a plate with a mouth 14 is welded at the plate surface of the block 13 facing the secondary mounting hole 7.

[0018] Among them, the surface of the plate body of the pressure plate 10 is recessed with an annular groove 15; the plate body of the pressure plate 10 can form a concave point with the annular groove 15. When the material is pressed between the pressure plates 10, the annular groove 15 can squeeze into the material, making the material clamped between the pressure plates 10 more firmly.

[0019] Among them, the surface of the plate with a mouth 14 is arranged with strips facing the auxiliary mounting hole 7, and the plate with a mouth 14 is welded to the surface of the block 13 with a non-mouth plate body; when the pressure plate 10 presses the material toward the plate with a mouth 14, the material can enter the strips of the plate with a mouth 14, so that the material is firmly clamped.

[0020] Among them, the rod body length of the threaded rod 8 is greater than the frame opening length of the upper clamping frame 2 and the lower clamping frame 3, and the rod body of the threaded rod 8 is a threaded cylinder; the rod body of the threaded rod 8 can be screwed into the upper clamping frame 2 and the lower clamping frame 3 to clamp the material opposite to the pressure plate 10, and the threaded rod 8 of the threaded cylinder can be screwed into the threaded hole body of the upper mounting hole 5, the lower mounting hole 6 and the auxiliary mounting hole 7 for installation.

[0021] Among them, the block body of the stop block 13 welded with the mouth plate 14 is located on one side of the middle inner frame wall of the lower clamp frame 3, and the plate height of the stop block 13 and the mouth plate 14 after being installed in the lower clamp frame 3 is lower than the hole height of the lower mounting hole 6; when the threaded rod 8 in the lower mounting hole 6 rotates with the pressure plate 10, the pressure plate 10 will not contact the stop block 13 and the mouth plate 14.

[0022] It should be noted that the utility model is an electronic universal material tensile testing machine. After the clamping mechanism 4 is improved and arranged at the upper clamping frame 2 and the lower clamping frame 3 of the tensile testing machine body 1, the abutment block 13 welded with the mouth plate 14 can be screwed into the middle screw hole 11 of the lower clamping frame 3 by means of the bottom bolt 12, and then the material to be subjected to the tensile test can be placed in the upper clamping frame 2 at the upper clamping frame 2, and then the threaded rod 8 at the upper mounting hole 5 is screwed into the upper clamping frame 2 after the rotary handle 9 is held, so that the pressure plate 10 of the threaded rod 8 can press and clamp the test material oppositely, and at the same time, the lower position of the tensile test material can be placed in the lower clamping frame 3, and the threaded rod 8 at the lower mounting hole 6 can be screwed into the lower clamping frame 3 to press the plate 10 clamps the test material, and at the same time, the threaded tube 8 at the auxiliary mounting hole 7 can rotate and push the pressure plate 10 to press the test material to the belt plate 14 on the surface of the block 13. When the material is pressed between the pressure plates 10, the annular groove 15 can squeeze in the material, so that the pressure plates 10 clamp the material more firmly. When the pressure plate 10 presses the material to the belt plate 14, the material can enter the strip mouth of the belt plate 14, so that the material is firmly clamped, thereby ensuring that the material can be better clamped at the tensile testing machine body 1 of the electronic universal material tensile testing machine for tensile testing, and the threaded rod 8 can be screwed outward at the upper mounting hole 5, the lower mounting hole 6 and the auxiliary mounting hole 7 to loosen the test material.

[0023] It should be noted that the utility model is an electronic universal material tensile testing machine. The components in the utility model are all components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An electronic universal material tensile testing machine, comprising a tensile testing machine body (1), an upper clamping frame (2) and a lower clamping frame (3), wherein the upper clamping frame (2) and the lower clamping frame (3) are respectively installed at the upper pull rod and the bottom pull rod of the tensile testing machine body (1), characterized in that: The invention also comprises a clamping mechanism (4), wherein the clamping mechanism (4) comprises an upper mounting hole (5), a lower mounting hole (6), an auxiliary mounting hole (7), a threaded rod (8), a rotary handle (9), a pressure plate (10), a middle rotary hole (11), a bottom bolt (12), a stop block (13) and a plate with a mouth (14); the upper mounting hole (5) and the lower mounting hole (6) are respectively provided at the vertical frame plates of the upper clamping frame (2) and the lower clamping frame (3); and an auxiliary mounting hole (7) is provided at the lower clamping frame (3) below the lower mounting hole (6); the upper mounting hole (5), the lower mounting hole (6) and the auxiliary mounting hole (7) A threaded rod (8) is screwed on the hole body, and a screw handle (9) is welded on the outer rod body of the upper clamp frame (2) and the lower clamp frame (3) after the threaded rod (8) is screwed out, and a pressure plate (10) is welded on the rod body of the upper clamp frame (2) and the lower clamp frame (3). A middle screw hole (11) for screwing a bottom bolt (12) is provided on the frame plate of the lower clamp frame (3) near the auxiliary mounting hole (7), and the bottom bolt (12) is welded to the bottom of the block body of the stop block (13), and a plate with a mouth (14) is welded on the plate surface of the stop block (13) facing the auxiliary mounting hole (7).

2. The electronic universal material tensile testing machine according to claim 1, characterized in that: The surface of the plate body of the pressure plate (10) is recessed and provided with an annular groove (15).

3. The electronic universal material tensile testing machine according to claim 1, characterized in that: The plate body surface of the plate with opening (14) is arranged with openings facing the auxiliary mounting hole (7), and the plate with opening (14) is welded to the surface of the stopper (13) with a plate body without openings.

4. The electronic universal material tensile testing machine according to claim 1, characterized in that: The length of the rod body of the threaded rod (8) is greater than the length of the frame openings of the upper clamping frame (2) and the lower clamping frame (3), and the rod body of the threaded rod (8) is a threaded cylinder.

5. The electronic universal material tensile testing machine according to claim 1, characterized in that: The block body of the stopper (13) welded with the plate with a mouth (14) is located on one side of the middle inner frame wall of the lower clamping frame (3), and the height of the plate body after the stopper (13) and the plate with a mouth (14) are installed in the lower clamping frame (3) is lower than the hole height of the lower mounting hole (6).

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