Pull-out tester

Abstract

The utility model provides a pull-out tester and belongs to the technical field of detection, the pull-out tester comprises a rack, a two-dimensional moving mechanism, a machine head, a sample pressing fixing frame, a tray and a lifting mechanism, the two-dimensional moving mechanism in the horizontal direction is mounted at the top of the rack, the machine head is mounted on the two-dimensional moving mechanism, the rack is of a cubic frame structure, and the tray is mounted on the machine head. A workbench is fixedly installed in the middle of the rack, sample pressing fixing frames are arranged on the workbench at intervals, a tray is arranged at the upper end of the workbench between the sample pressing fixing frames, and the lower end of the tray is connected with a lifting mechanism. The bottom plate of the sample is controlled to ascend and descend in a pedal mode, operation is convenient and fast, pressing and positioning are completed at a time, testing time is saved, and working efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the field of detection technology, and relates to the field of material physical property detection technology, and in particular to a pull-out tester. Background Art

[0002] The tensile and compression testing instrument is a commonly used testing equipment in the field of material testing. It is used for tensile and bonding strength testing of dry-mix mortar, thermal insulation materials, waterproof materials, ceramic wall and floor tile adhesives, multi-layer architectural coatings, and putty for building exterior walls. It uses the XY two-dimensional mobile platform as the technical key point and can realize continuous measurement of multiple test tensile strengths. It is widely used in factories, construction engineering quality inspection stations, product quality inspection institutes, scientific research institutions and other production inspection, development and research and other fields.

[0003] In the existing tension and compression tester structure, the fixing structure of the sample includes a sample bar fixing frame and a sample plate. The sample bar fixing frame is fixed on the machine base. A plurality of manually controlled bolts are arranged on the fixing bar. The lower ends of the bolts are connected to the fixing bar. The height of the fixing bar is adjusted by rotating the bolts to tighten or loosen the sample. The fixing structure in the prior art requires the operator to rotate a plurality of bolts separately for operation, which is cumbersome and time-consuming. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a pulling tester.

[0005] A pulling tester comprises a frame, a two-dimensional moving mechanism, a machine head, a sample pressing fixing frame, a tray and a lifting mechanism. A horizontal two-dimensional moving mechanism is installed on the top of the frame, and the machine head is installed on the two-dimensional moving mechanism. The frame is a cubic frame structure, and a workbench is fixedly installed in the middle of the frame. Sample pressing fixing frames are arranged at intervals on the workbench. A tray is arranged on the upper end of the workbench between the sample pressing fixing frames, and the lower end of the tray is connected to the lifting mechanism, which can drive the tray to move up and down.

[0006] By adopting the above technical solution, the original structure of adjusting and fixing the sample from multiple points on the top is changed, and a tray that can be raised and lowered is used to support the sample. The tray supports the sample to move up and down as a whole, and the sample is adjusted and fixed at one time, which ensures the sample fixing effect while simplifying the fixing operation steps and improving efficiency. According to actual needs, the lifting mechanism can adopt the existing telescopic rod, cylinder, oil cylinder or multi-link mechanical structure.

[0007] Preferably, the lifting mechanism passes through a through hole arranged in the middle of the workbench, and the lifting mechanism extends to the lower part of the frame, and the lifting mechanism at the lower part of the frame is connected to a pedal.

[0008] By adopting the above technical solution and using a pedal as a control structure, multiple manual operations by staff can be avoided, and the pedal method is more labor-saving and convenient.

[0009] Preferably, the lifting mechanism includes a first connecting rod, a second connecting rod, a third connecting rod, a spring and a pedal.

[0010] The first connecting rod is a straight rod structure, the first connecting rod is fixedly mounted at the lower end of the tray, and the first connecting rod vertically passes through the workbench;

[0011] One end of the second connecting rod is hinged to the lower end of the first connecting rod, and the other end of the second connecting rod is hinged to the middle part of the third connecting rod;

[0012] One end of the third connecting rod is hinged on the lower part of the frame, and the other end of the third connecting rod is fixedly connected with a pedal; a spring is connected between the middle part of the third connecting rod and the lower end surface of the workbench, and the spring continuously provides tension.

[0013] By adopting the above technical solution, the lifting mechanism adopts a multi-link structure with a reset spring, and the reset spring keeps providing a pulling force to keep the tray pushing up, thereby pushing the sample into position.

[0014] Preferably, a folded angle is provided in the middle of the third connecting rod, and the third connecting rod between the folded angle and the pedal is inclined from top to bottom.

[0015] By adopting the above technical solution, the pedals are connected by a folding rod structure, so that the position of the pedals is more convenient for foot operation, and the structure of the multiple connecting rods is reasonable and reliable.

[0016] Preferably, a baffle protruding in the horizontal direction is provided on the upper portion of the sample pressing and fixing frame, and the baffle is used for limiting the contact with the sample.

[0017] By adopting the above technical solution, the baffle of the sample pressing and fixing frame is fixed or made in one piece, and can abut the sample from above to prevent the sample from falling out when being pulled.

[0018] Preferably, the two-dimensional moving mechanism includes a transverse guide rail and a longitudinal guide rail. The longitudinal guide rail is fixedly mounted on the upper end of the frame. A base connected to the transverse guide rail is guided on the longitudinal guide rail. The transverse guide rail and the longitudinal guide rail are both horizontally arranged, and the guiding movement directions are perpendicular to each other. A machine head is connected to the transverse guide rail, and the machine head can move back and forth along the transverse track.

[0019] By adopting the above technical solution, the head can be moved and adjusted in the XY direction through the two-dimensional moving mechanism, which can facilitate the testing of multiple samples on a plane.

[0020] Preferably, a touch control screen is provided on the machine head.

[0021] By adopting the above technical solutions, the instrument touch screen operation is simple, intelligent and fast, and the user experience is better than other similar products.

[0022] Preferably, a detection assembly is connected to the lower end of the machine head, and the detection assembly includes a lifting screw, a tension and compression sensor, a universal joint, a ball head and a pull-out nail connected in sequence, and the tension and compression sensor is electrically connected to the machine head through a wire.

[0023] By adopting the above technical solution, the detection component is firmly connected to the sample to be tested through the pull nail, and the ball head and universal joint are convenient for adjusting the connection angle during operation. In the process of the lifting screw driving the pull nail to move, the tension and compression sensor can detect the current stress state in real time.

[0024] In summary, this application includes the following beneficial technical effects:

[0025] This application adopts a foot-operated control to lift the bottom plate of the sample, which is easy to operate and completes the compression and positioning in one go, saving test time and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the main view of the tester.

[0027] Figure 2 This is the left side view of the tester.

[0028] Figure 3 It is a structural diagram of another usage state of the tester.

[0029] Figure 4 It is a structural diagram of the head part of this tester.

[0030] Figure numerals: 1. Machine head; 11. Touch control screen; 12. Tension and compression sensor; 13. Universal joint; 14. Ball head; 15. Pull-out nail; 2. Horizontal guide rail; 3. Longitudinal guide rail; 4. Frame; 5. Sample pressing fixing frame; 6. Tray; 7. Workbench; 8. Foot mechanism; 81. First connecting rod; 82. Second connecting rod; 83. Spring; 84. Third connecting rod; 85. Pedal; 9. Specimen. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings.

[0032] A pull-off tester, see Figure 1 As shown, it includes a frame 4, a two-dimensional moving mechanism, a head 1, a sample pressing fixed frame 5, a tray 6 and a lifting mechanism.

[0033] The frame 4 is a cubic frame structure, and a horizontally arranged workbench 7 is fixedly installed in the middle of the frame 4. The workbench 7 is used to support the test to be tested, and a sample pressing fixing frame 5 for fixing the position of the sample 9 is positioned and installed on the workbench 7;

[0034] A two-dimensional moving mechanism in the horizontal direction is installed on the top of the frame 4, and a machine head 1 is installed on the two-dimensional moving mechanism. The two-dimensional moving mechanism can drive the machine head 1 to move in the horizontal direction; a detection component is connected to the lower end of the machine head 1, and the detection component moves synchronously with the machine head 1 for performing a pulling test on the sample 9.

[0035] The two-dimensional moving mechanism includes a transverse guide rail 2 and a longitudinal guide rail 3. The longitudinal guide rail 3 is fixedly mounted on the upper end of the frame 4. A base of the transverse guide rail 2 is guided and connected on the longitudinal guide rail 3. The transverse guide rail 2 and the longitudinal guide rail 3 are both horizontally arranged, and the guiding movement directions are perpendicular to each other. The transverse guide rail 2 is connected to a machine head 1, and the machine head 1 can move back and forth along the transverse track.

[0036] See attached Figure 1 As shown, two sample pressing fixing frames 5 are symmetrically arranged at the upper end of the workbench 7, and a baffle protruding toward the middle of the workbench 7 is arranged on the upper part of the sample pressing fixing frames 5. The distance between the sample pressing fixing frames 5 matches the size of the sample 9. The sample 9 can be placed between the two sample pressing fixing frames 5, and the upper baffle of the sample pressing fixing frames 5 can clamp the two sides of the sample 9 from the upper ends of both sides to prevent the sample 9 from escaping from the top.

[0037] In order to ensure accurate positioning of the sample 9 , a tray 6 is provided on the upper end of the workbench 7 between the sample pressing and fixing frames 5 . The size of the tray 6 matches the sample 9 and can hold up the sample 9 .

[0038] The lower end of the tray 6 is connected with a lifting mechanism, which passes through a through hole provided in the middle of the workbench 7 and can extend to the lower part of the frame 4. A pedal 85 is connected to the lifting mechanism at the lower part of the frame 4. When the staff steps on the pedal 85, the tray 6 can be driven down to facilitate the placement of the sample 9; when the pedal 85 is released, the lifting mechanism is reset to lift the tray 6, thereby lifting the sample 9 on the tray 6, so that the sample 9 abuts against the sample pressing and fixing frame 5 and is fixed.

[0039] See attached Figure 2 , 3 As shown, the lifting mechanism of this embodiment includes a first connecting rod 81, a second connecting rod 82, a third connecting rod 84, a spring 83 and a pedal 85. The first connecting rod 81 is a straight rod structure, and the first connecting rod 81 is fixed to the lower end of the tray 6. The first connecting rod 81 vertically passes through the workbench 7;

[0040] The third connecting rod 84 is a folding rod structure with a folded angle in the middle. One end of the third connecting rod 84 is hinged to the inner side of the lower part of the frame 4 through a hinge seat. The third connecting rod 84 has a folded angle in the middle. The third connecting rod 84 on the other side of the folded angle is tilted downward. A pedal 85 is fixedly connected to the other end of the third connecting rod 84.

[0041] One end of the second link 82 is hinged to the middle of the third link 84, and the other end of the second link 82 is hinged to the lower end of the first link 81;

[0042] A spring 83 is further connected between the third connecting rod 84 and the lower end surface of the workbench 7 . The spring 83 continuously provides a pulling force to swing the third connecting rod 84 upward, thereby driving the tray 6 to push upward.

[0043] The lifting mechanism can also adopt the telescopic rod, air cylinder, oil cylinder or multi-link mechanical structure in the prior art, and can adopt a foot pedal switch.

[0044] See attached Figure 4 As shown, a touch control screen 11 and a USB interface are provided on the machine head 1. The touch control screen can display an operation interface and real-time tension data, and the USB interface can be used to store output data.

[0045] A detection component is connected to the lower end of the machine head 1, and the detection component includes a tension and compression sensor 12, a universal joint 13, a ball head 14 and a pulling nail 15. A lifting screw is installed at the lower end of the machine head 1, and a tension and compression sensor 12 is fixedly installed at the lower end of the lifting screw. The tension and compression sensor 12 is connected to the machine head 1 through a data cable. The lower end of the tension and compression sensor 12 is connected to a universal joint 13, and the lower end of the universal joint 13 is connected to the ball head 14. A pulling plate nail is installed in the ball head 14, and the pulling nail 15 can stably connect the pulling block on the sample 9 to be tested.

[0046] A host is provided in the machine head 1, and a detection control system is installed in the host. During detection, the machine head 1 moves to the detection position, and the operator fixes the pulling nail 15 to the sample 9. The host controls the lifting screw to rise so as to pull the sample 9, and the tension and compression sensor 12 sends the detected values ​​to the host. The detection control system of the pulling instrument is implemented by the existing technology and is not described in detail in this application.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pull-out tester, characterized in that: The machine comprises a frame (4), a two-dimensional moving mechanism, a head (1), a sample pressing fixed frame (5), a tray (6) and a lifting mechanism. A two-dimensional moving mechanism in a horizontal direction is installed on the top of the frame (4). The head (1) is installed on the two-dimensional moving mechanism. The frame (4) is a cubic frame structure. A workbench (7) is fixedly installed in the middle of the frame (4). Sample pressing fixed frames (5) are arranged on the workbench (7) at intervals. A tray (6) is arranged on the upper end of the workbench (7) between the sample pressing fixed frames (5). The lower end of the tray (6) is connected to the lifting mechanism, and the lifting mechanism can drive the tray to move up and down.

2. The pull-out tester according to claim 1, characterized in that: The lifting mechanism passes through a through hole arranged in the middle of the workbench (7), and extends to the lower part of the frame (4). The lifting mechanism at the lower part of the frame (4) is connected to a pedal (85).

3. The pull-out tester according to claim 2, characterized in that: The lifting mechanism comprises a first connecting rod (81), a second connecting rod (82), a third connecting rod (84), a spring (83) and a pedal (85). The first connecting rod (81) is a straight rod structure, the first connecting rod (81) is fixedly mounted on the lower end of the tray (6), and the first connecting rod (81) vertically passes through the workbench (7); One end of the second connecting rod (82) is hinged to the lower end of the first connecting rod (81), and the other end of the second connecting rod (82) is hinged to the middle part of the third connecting rod (84); One end of the third connecting rod (84) is hinged on the lower part of the frame (4), and the other end of the third connecting rod (84) is fixedly connected to a pedal (85); a spring (83) is connected between the middle part of the third connecting rod (84) and the lower end surface of the workbench (7), and the spring (83) continuously provides a pulling force.

4. The pull-out tester according to claim 3, characterized in that: A folded angle is arranged in the middle of the third connecting rod (84), and the third connecting rod (84) between the folded angle and the pedal (85) is arranged to be inclined from top to bottom.

5. The pull-out tester according to claim 1, characterized in that: The upper part of the sample pressing and fixing frame (5) is provided with a baffle protruding in the horizontal direction, and the baffle is used for limiting the position of the abutment against the sample.

6. The pull-out tester according to claim 1, characterized in that: The two-dimensional moving mechanism comprises a transverse guide rail (2) and a longitudinal guide rail (3); the longitudinal guide rail (3) is fixedly mounted on the upper end of the frame (4); a base to which the transverse guide rail (2) is connected is guided on the longitudinal guide rail (3); the transverse guide rail (2) and the longitudinal guide rail (3) are both arranged horizontally, and the guiding movement directions are perpendicular to each other; a machine head (1) is connected to the transverse guide rail (2), and the machine head (1) can move back and forth along the transverse rail.

7. The pull-out tester according to claim 1, characterized in that: The machine head (1) is provided with a touch control screen (11).

8. The pull-out tester according to claim 1, characterized in that: The lower end of the machine head (1) is connected to a detection assembly, which comprises a lifting screw, a tension and compression sensor (12), a universal joint (13), a ball head (14) and a pull-out nail (15) which are connected in sequence, and the tension and compression sensor (12) is electrically connected to the machine head (1) via a wire.

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