Sample fracture detection device for electronic universal testing machine

Abstract

The utility model relates to the technical field of electronic universal testing machines, and discloses a sample fracture detection device for an electronic universal testing machine, which solves the problem that the existing detection device for the electronic universal testing machine is inconvenient to stably clamp a plate-shaped sample and a rod-shaped sample respectively, and comprises a support base, a detection controller is arranged on one side of the supporting base, a supporting frame is fixedly arranged at the top end of the supporting base, a bottom clamping mechanism is arranged at the bottom end in the supporting frame, a first hydraulic rod is arranged at the top end of the supporting frame in a penetrating mode, and a top clamping mechanism is fixedly arranged at the bottom of the first hydraulic rod. The bottom clamping mechanism and the top clamping mechanism are each composed of a clamping adjusting assembly, a plate-shaped sample clamping assembly and a rod-shaped sample clamping assembly. By means of the device, the plate-shaped sample can be stably clamped, the rod-shaped sample can also be stably clamped, and the dual purposes of one machine are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic universal testing machines, in particular to a sample fracture detection device for an electronic universal testing machine. Background Art

[0002] The specimen fracture detection device of the electronic universal testing machine mainly realizes fracture capture through force value mutation monitoring and deformation rate analysis. Its core is composed of a sensor system, a control unit and an actuator. During specimen fracture detection, the clamping assembly in the actuator needs to clamp and fix the specimen to be tested, and the existing clamping assembly can usually only firmly clamp plate-shaped specimens or rod-shaped specimens, which is not convenient for achieving dual-purpose use of one machine. Therefore, this application proposes a specimen fracture detection device for an electronic universal testing machine to improve the existing detection device. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a sample fracture detection device for an electronic universal testing machine, which effectively solves the problem that the existing detection device for an electronic universal testing machine is not convenient for firmly clamping plate-shaped samples and rod-shaped samples respectively.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a specimen fracture detection device for an electronic universal testing machine, comprising a support base, a detection controller being provided on one side of the support base, a support frame being fixedly provided on the top end of the support base, a bottom clamping mechanism being provided on the bottom end of the interior of the support frame, a hydraulic rod being provided through the top end of the support frame, a top clamping mechanism being fixedly provided on the bottom of the hydraulic rod, and both the bottom clamping mechanism and the top clamping mechanism being composed of a clamping adjustment assembly, a plate-shaped specimen clamping assembly, and a rod-shaped specimen clamping assembly;

[0005] The clamping adjustment assembly consists of a U-shaped support frame, a first support plate, a second support plate and two hydraulic rods. The first support plate and the second support plate are respectively slidably connected to the two sides of the U-shaped support frame and are connected to the U-shaped support frame through the hydraulic rod. The top end of the U-shaped support frame is provided with a limiting slide groove slidably connected to the first support plate and the second support plate. The first support plate and the second support plate are provided with a clamping groove matching the plate-shaped sample clamping assembly and the rod-shaped sample clamping assembly on the side away from the hydraulic rod.

[0006] The plate-shaped specimen clamping assembly is composed of a clamping plate 1 and a clamping plate 2, and a plurality of strip-shaped ribs are fixedly provided on one side of the clamping plate 1 and the clamping plate 2;

[0007] The rod-shaped sample clamping assembly consists of a clamping plate three and a clamping plate four. One side of the clamping plate three and the clamping plate four is provided with a plurality of arc-shaped clamping grooves with different diameters, and the inner side walls of the arc-shaped clamping grooves are fixedly provided with a plurality of arc-shaped convex ribs.

[0008] Preferably, a plurality of limiting rods that are slidably inserted into the U-shaped support frame are fixedly provided on one side of the first support plate and the second support plate close to the second hydraulic rod.

[0009] Preferably, the first support plate and the second support plate are fixedly provided with a plurality of permanent magnets 1 located on one side of the clamping groove, and the clamping plate 1, clamping plate 2, clamping plate 3 and clamping plate 4 are fixedly provided with a plurality of permanent magnets 2 on the side close to the clamping groove, and the permanent magnet 1 has opposite magnetic poles to the permanent magnet 2.

[0010] Preferably, an inner groove is provided in the middle position of one side of the clamping groove, a top block is provided inside the inner groove, and a threaded rod is provided through the middle positions of the first support plate and the second support plate. The threaded rod and the first support plate and the second support plate are both threaded connection structures, and one end of the threaded rod is rotatably connected to the top block.

[0011] Preferably, a storage drawer is provided on the front of the support base.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] (1) During operation, by providing a bottom clamping mechanism and a top clamping mechanism consisting of a clamping adjustment assembly, a plate sample clamping assembly, and a rod sample clamping assembly, it is possible to achieve a stable clamping of plate samples and rod samples, thereby improving adaptability and achieving dual-purpose use of one machine. By providing strip-shaped ribs, it is possible to improve the stability of clamping plate samples. By providing a number of arc-shaped clamping grooves of different diameters and arc-shaped ribs, it is possible to clamp rod samples of different diameters and improve the stability of clamping.

[0014] (2) By providing permanent magnet 1 and permanent magnet 2, the stability of the connection between clamping plate 1, clamping plate 2, clamping plate 3 and clamping plate 4 and the first support plate and the second support plate can be improved to avoid the situation of self-detachment. By providing inner groove, threaded rod and top block, the clamping plate 1, clamping plate 2, clamping plate 3 and clamping plate 4 can be assisted to be disassembled, thereby improving the convenience of disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached figure:

[0017] Figure 1 This is a structural diagram of a sample fracture detection device for an electronic universal testing machine of the present utility model;

[0018] Figure 2This is a schematic diagram of the top clamping mechanism structure of the utility model;

[0019] Figure 3 This is a partial cross-sectional view of the top clamping mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the partial structure of the top clamping mechanism of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the plate-shaped specimen clamping assembly of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the rod-shaped sample clamping assembly of the utility model;

[0023] In the figure: 1. Support base; 2. Detection controller; 3. Support frame; 4. Bottom clamping mechanism; 5. Hydraulic rod 1; 6. Top clamping mechanism; 7. Clamping adjustment assembly; 8. Plate specimen clamping assembly; 9. Rod specimen clamping assembly; 10. U-shaped support frame; 11. First support plate; 12. Second support plate; 13. Hydraulic rod 2; 14. Limiting slide; 15. Snap-in groove; 16. Clamping plate 1; 17. Clamping plate 2; 18. Strip rib; 19. Clamping plate 3; 20. Clamping plate 4; 21. Arc-shaped clamping groove; 22. Arc-shaped rib; 23. Limiting rod; 24. Permanent magnet 1; 25. Permanent magnet 2; 26. Inner groove; 27. Top block; 28. Threaded rod; 29. ​​Storage drawer. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Depend on Figures 1 to 6 The present invention provides a specimen fracture detection device for an electronic universal testing machine, comprising a support base 1, a detection controller 2 being provided on one side of the support base 1, a support frame 3 being fixedly provided on the top of the support base 1, a bottom clamping mechanism 4 being provided on the bottom end of the interior of the support frame 3, a hydraulic rod 5 being provided through the top of the support frame 3, a top clamping mechanism 6 being fixedly provided on the bottom of the hydraulic rod 5, and both the bottom clamping mechanism 4 and the top clamping mechanism 6 being composed of a clamping adjustment assembly 7, a plate-shaped specimen clamping assembly 8 and a rod-shaped specimen clamping assembly 9;

[0026] The hydraulic rod 15 can drive the top clamping mechanism 6 to rise and fall, thereby achieving a stretching effect. The bottom clamping mechanism 4 and the top clamping mechanism 6 can clamp the sample. The plate sample clamping assembly 8 and the rod sample clamping assembly 9 can be replaced. The plate sample clamping assembly 8 can improve the stability of the plate sample clamping, and the rod sample clamping assembly 9 can improve the stability of the rod sample clamping.

[0027] The clamping adjustment assembly 7 is composed of a U-shaped support frame 10, a first support plate 11, a second support plate 12 and two hydraulic rods 13. The first support plate 11 and the second support plate 12 are respectively slidably connected to the two sides of the interior of the U-shaped support frame 10 and are connected to the U-shaped support frame 10 through the hydraulic rods 13. The top of the interior of the U-shaped support frame 10 is provided with a limiting slide 14 that is slidably connected to the first support plate 11 and the second support plate 12. The first support plate 11 and the second support plate 12 are both provided with a clamping groove 15 that matches the plate-shaped sample clamping assembly 8 and the rod-shaped sample clamping assembly 9 on the side away from the hydraulic rods 13.

[0028] The two hydraulic rods 13 can respectively drive the first support plate 11 and the second support plate 12 to move, and the first support plate 11 and the second support plate 12 can drive the plate-shaped sample clamping assembly 8 or the rod-shaped sample clamping assembly 9 to move, thereby firmly clamping the plate-shaped sample or the rod-shaped sample. The clamping groove 15 can limit the clamping of the plate-shaped sample clamping assembly 8 and the rod-shaped sample clamping assembly 9 to prevent the plate-shaped sample clamping assembly 8 or the rod-shaped sample clamping assembly 9 from vertical displacement.

[0029] The plate-shaped specimen clamping assembly 8 is composed of a clamping plate 16 and a clamping plate 2 17. A plurality of strip-shaped ribs 18 are fixedly provided on one side of each of the clamping plates 16 and 17. The clamping plates 16 and 17 can be engaged with the clamping grooves 15 to limit the position. The strip-shaped ribs 18 can improve the stability of the clamping of the plate-shaped specimen.

[0030] The rod-shaped specimen clamping assembly 9 is composed of a third clamping plate 19 and a fourth clamping plate 20. A plurality of arcuate clamping grooves 21 of varying diameters are formed on one side of each of the third and fourth clamping plates 19 and 20. The inner sidewalls of the arcuate clamping grooves 21 are fixedly provided with a plurality of arcuate ribs 22. The arcuate clamping grooves 21 of varying diameters are adapted to clamp rod-shaped specimens of varying diameters, and the arcuate ribs 22 enhance the stability of the clamping of the rod-shaped specimen.

[0031] Attached to this application Figure 6It can be seen that the arc-shaped clamping grooves 21 are provided with three sizes: large, medium, and small. The arc-shaped clamping grooves 21 can not only clamp rod-shaped samples with the same inner diameter as the arc-shaped clamping grooves 21, but also clamp rod-shaped samples with a diameter smaller than the inner diameter. It is only necessary to ensure that the diameter of the clamped sample is larger than the radius of the arc-shaped clamping groove and smaller than the diameter of the arc-shaped clamping groove. Therefore, the three arc-shaped clamping grooves 21 are not limited to clamping three rod-shaped samples, which effectively improves adaptability.

[0032] A plurality of limiting rods 23 are fixedly provided on one side of the first support plate 11 and the second support plate 12 near the hydraulic rod 2 13, and are slidably inserted into the U-shaped support frame 10, which can realize auxiliary limiting of the first support plate 11 and the second support plate 12, thereby improving the stability of the first support plate 11 and the second support plate 12;

[0033] The first support plate 11 and the second support plate 12 are each fixedly provided with a plurality of permanent magnets 24 located on one side of the clamping groove 15. The clamping plate 16, the clamping plate 2 17, the clamping plate 3 19 and the clamping plate 4 20 are each fixedly provided with a plurality of permanent magnets 25 on the side close to the clamping groove 15. The permanent magnets 1 24 and the permanent magnets 2 25 have opposite magnetic poles.

[0034] After the clamping plate 1 16, the clamping plate 2 17, the clamping plate 3 19 and the clamping plate 4 20 are installed, the permanent magnet 1 24 and the permanent magnet 2 25 are used to realize magnetic attraction limiting, thereby preventing the clamping plate 1 16, the clamping plate 2 17, the clamping plate 3 19 and the clamping plate 4 20 from falling off by themselves;

[0035] The first permanent magnet 24 and the second permanent magnet 25 mainly play the role of auxiliary limit. During use, the permanent magnet will not bear a large tensile force. In addition, the first permanent magnet 24 and the second permanent magnet 25 in the present application can be made of aluminum nickel cobalt permanent magnets, which have a Curie temperature of 540°C and have high temperature resistance, thereby avoiding the influence of heat generated during the sample stretching process.

[0036] An inner groove 26 is provided in the middle position of one side of the clamping groove 15, and a top block 27 is provided inside the inner groove 26. A threaded rod 28 is provided through the middle position of the first support plate 11 and the second support plate 12. The threaded rod 28 and the first support plate 11 and the second support plate 12 are both threaded connection structures, and one end of the threaded rod 28 is rotatably connected to the top block 27;

[0037] If it is necessary to disassemble and replace the clamping plate 16, the clamping plate 21, the clamping plate 3, the clamping plate 19 and the clamping plate 4, the clamping plate 20, ...

[0038] A storage drawer 29 is provided on the front of the support base 1 , which can store the clamping plate 1 16 , the clamping plate 2 17 , the clamping plate 3 19 and the clamping plate 4 20 .

[0039] During operation, by setting a bottom clamping mechanism and a top clamping mechanism composed of a clamping adjustment component, a plate sample clamping component and a rod sample clamping component, it is possible to achieve firm clamping of plate samples and rod samples, thereby improving adaptability and achieving dual-purpose of one machine. By setting strip ribs, the firmness of clamping of plate samples can be improved. By setting a number of arc-shaped clamping grooves with different diameters and arc-shaped ribs, rod samples of different diameters can be clamped and the clamping firmness can be improved. By setting permanent magnet 1 and permanent magnet 2, the firmness of the connection between clamping plate 1, clamping plate 2, clamping plate 3 and clamping plate 4 and the first support plate and the second support plate can be improved to avoid self-detachment. By setting an inner groove, a threaded rod and a top block, it is possible to assist in disassembling clamping plate 1, clamping plate 2, clamping plate 3 and clamping plate 4, thereby improving the convenience of disassembly.

Claims

1. A specimen fracture detection device for an electronic universal testing machine, comprising a support base (1), characterized in that: A detection controller (2) is provided on one side of the support base (1), a support frame (3) is fixedly provided on the top of the support base (1), a bottom clamping mechanism (4) is provided at the bottom end of the support frame (3), a hydraulic rod (5) is provided through the top of the support frame (3), a top clamping mechanism (6) is fixedly provided at the bottom of the hydraulic rod (5), and both the bottom clamping mechanism (4) and the top clamping mechanism (6) are composed of a clamping adjustment component (7), a plate-shaped sample clamping component (8) and a rod-shaped sample clamping component (9); The clamping adjustment assembly (7) is composed of a U-shaped support frame (10), a first support plate (11), a second support plate (12) and two hydraulic rods (13). The first support plate (11) and the second support plate (12) are respectively slidably connected to the two sides of the interior of the U-shaped support frame (10) and are connected to the U-shaped support frame (10) through the hydraulic rod (13). The top end of the interior of the U-shaped support frame (10) is provided with a limiting slide groove (14) slidably connected to the first support plate (11) and the second support plate (12). The first support plate (11) and the second support plate (12) are provided with a clamping groove (15) matching the plate-shaped sample clamping assembly (8) and the rod-shaped sample clamping assembly (9) on the side away from the hydraulic rod (13). The plate-shaped specimen clamping assembly (8) is composed of a clamping plate 1 (16) and a clamping plate 2 (17), and a plurality of strip-shaped convex ribs (18) are fixedly provided on one side of the clamping plate 1 (16) and the clamping plate 2 (17); The rod-shaped specimen clamping assembly (9) is composed of a clamping plate three (19) and a clamping plate four (20). A plurality of arc-shaped clamping grooves (21) of different diameters are provided on one side of the clamping plate three (19) and the clamping plate four (20). A plurality of arc-shaped convex ribs (22) are fixedly provided on the inner side walls of the arc-shaped clamping grooves (21).

2. The specimen fracture detection device for an electronic universal testing machine according to claim 1, characterized in that: A plurality of limiting rods (23) that are slidably inserted into the U-shaped support frame (10) are fixedly provided on one side of the first support plate (11) and the second support plate (12) close to the second hydraulic rod (13).

3. The specimen fracture detection device for an electronic universal testing machine according to claim 1, characterized in that: The first support plate (11) and the second support plate (12) are both fixedly provided with a plurality of permanent magnets 1 (24) located on one side of the clamping groove (15), and the clamping plate 1 (16), the clamping plate 2 (17), the clamping plate 3 (19) and the clamping plate 4 (20) are all fixedly provided with a plurality of permanent magnets 2 (25) on one side close to the clamping groove (15), and the permanent magnets 1 (24) and the permanent magnets 2 (25) have opposite magnetic poles.

4. The specimen fracture detection device for an electronic universal testing machine according to claim 1, characterized in that: An inner groove (26) is provided in the middle position of one side of the clamping groove (15), and a top block (27) is provided inside the inner groove (26). A threaded rod (28) is provided through the middle positions of the first support plate (11) and the second support plate (12). The threaded rod (28) and the first support plate (11) and the second support plate (12) are all threaded connection structures, and one end of the threaded rod (28) is rotatably connected to the top block (27).

5. The specimen fracture detection device for an electronic universal testing machine according to claim 1, characterized in that: A storage drawer (29) is provided on the front of the support base (1).

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