Clamp for tensile test of metal plate

Abstract

The utility model relates to the technical field of clamps, and discloses a clamp for a tensile test of a metal plate, which comprises a support rod, a workbench, a clamping device, a clamping device and a clamping device, and is characterized in that the top of the support rod is fixedly provided with the workbench; the lifting mechanisms are arranged on the left side and the right side of the top of the workbench; wherein the lifting mechanism comprises a lifting motor, and the bottom of the lifting motor is fixedly connected with the top of the workbench. By arranging the lifting motor, the hollow block, the connecting rod and the movable rod, when the lifting motor operates, a rotating shaft can drive a rotating rod to rotate, then a circular shaft rotates and extrudes to push the hollow block to move upwards, and the hollow block moves upwards to drive the connecting rod and the movable rod to move upwards under the limiting effect of a fixed block; and therefore, the transverse rod moves upwards to drive the first pneumatic cylinder and the second pneumatic cylinder to move upwards, the purpose of enlarging the clamping and fixing range of the clamp is achieved, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, and more specifically to a clamp for tensile testing of metal plates. Background Art

[0002] There are many types of metal sheets, including corrugated steel sheets, zinc sheets, galvanized sheets, aluminum alloy sheets, aluminum-magnesium alloy sheets, copper sheets, stainless steel sheets, colored stainless steel sheets, etc.

[0003] When operators conduct tensile tests on metal plates, they often use clamps to clamp and fix the metal plates. Although the existing clamps can achieve basic clamping and fixing functions in actual use, the clamping and fixing range of the existing clamps is limited. If a metal plate with a thickness greater than the clamping and fixing range is encountered, the existing clamp will not be able to clamp and fix the metal plate. It is necessary to replace the clamp with a larger fixing range to clamp and fix the metal plate. This process brings inconvenience to the operator and also reduces the operator's work efficiency, so it needs to be improved. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a clamp for a metal plate tensile test, which has the advantage of a wide range of applications.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal plate tensile test fixture, comprising:

[0006] A support rod, a workbench is fixedly mounted on the top of the support rod;

[0007] A lifting mechanism, which is arranged on the left and right sides of the top of the workbench;

[0008] In which, the lifting mechanism includes a lifting motor, the bottom of the lifting motor is fixedly connected to the top of the workbench, the other end of the output shaft of the lifting motor is fixedly sleeved with a rotating shaft, the outer surface of the rotating shaft is fixedly sleeved with a rotating rod, the other end of the rotating rod is fixedly sleeved with a round shaft, the outer surface of the round shaft is movably connected with a hollow block, the top of the hollow block is fixedly connected with a connecting rod, the left side of the connecting rod is fixedly connected with a movable rod, the outer surface of the movable rod is movably sleeved with a fixed block, the bottom end of the fixed block is fixedly connected to the top of the workbench, the inner wall of the outer side of the fixed block is movably connected to the outer surface of the connecting rod, the number of the movable rods is two, a cross bar is fixedly installed between the two movable rods, and the upward movement of the connecting rod drives the movable rod and the cross bar to move upward.

[0009] As a preferred technical solution of the utility model, a limiting groove is provided inside the cross bar, and a movable block is movably connected to the inner wall of the limiting groove, a first pneumatic cylinder is fixedly installed on the top of the movable block, the bottom of the first pneumatic cylinder passes through the movable block and extends to the bottom of the movable block and is fixedly connected to a first splint, the right end of the first splint is movably connected to a first baffle, and the bottom of the first baffle is movably connected to the top of the workbench.

[0010] As a preferred technical solution of the utility model, a second pneumatic cylinder is fixedly installed on the left side of the top of the cross bar, the bottom of the second pneumatic cylinder penetrates the cross bar and extends to the bottom of the cross bar and is fixedly connected to a second clamp block, the left side of the second clamp block is movably connected to a second baffle, the bottom of the second baffle is fixedly connected to the top of the workbench, and the top of the second baffle penetrates the movable rod and extends to the top of the movable rod.

[0011] As a preferred technical solution of the utility model, a drive motor is fixedly installed in the middle of the right side of the workbench, and a lead screw is fixedly sleeved on the other end of the output shaft of the drive motor. The left end of the lead screw passes through the workbench and extends to the interior of the workbench.

[0012] As a preferred technical solution of the utility model, a connecting block is threadedly sleeved on the outer surface of the lead screw, the top of the connecting block is fixedly connected to the bottom of the first baffle, and the outer surface of the connecting block is movably connected to the inner wall of the workbench.

[0013] As a preferred technical solution of the utility model, a dual-axis motor is fixedly installed in the middle of the bottom of the workbench, the other end of the dual-axis motor output shaft is fixedly sleeved with a transmission shaft, and the outer surface of the transmission shaft is fixedly sleeved with a gear.

[0014] As a preferred technical solution of the utility model, the outer surface of the gear is meshed with a tooth plate, and the right side of the tooth plate is fixedly connected with a lifting plate. The top of the lifting plate passes through the workbench and extends to the top of the workbench. The meshing of the gear and the tooth plate drives the lifting plate to move upward.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model is provided with a lifting motor, a hollow block, a connecting rod and a movable rod. When the lifting motor is in operation, the rotating shaft will drive the rotating rod to rotate, thereby causing the circular shaft to rotate and squeeze to push the hollow block to move upward. The upward movement of the hollow block will drive the connecting rod and the movable rod to move upward under the limiting action of the fixed block, thereby causing the cross bar to move upward and drive the first pneumatic cylinder and the second pneumatic cylinder to move upward, thereby achieving the purpose of increasing the clamping and fixing range of the clamp and improving the practicality of the device.

[0017] 2. The utility model sets a dual-axis motor, gears, toothed plates and lifting plates. When the dual-axis motor is running, the transmission shaft will drive the gears to rotate, and the rotating gears will mesh with the toothed plates, thereby driving the two lifting plates to move upward, thereby blocking the debris generated when the metal sheet breaks and preventing the flying metal fragments from scratching the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 4 It is a cross-sectional structural schematic diagram of the side of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the utility model when viewed from above.

[0023] In the figure: 1. support rod; 2. workbench; 3. lifting motor; 4. rotating shaft; 5. rotating rod; 6. round shaft; 7. hollow block; 8. connecting rod; 9. movable rod; 10. fixed block; 11. cross bar; 12. limiting groove; 13. movable block; 14. first pneumatic cylinder; 15. first clamping plate; 16. first baffle; 17. second pneumatic cylinder; 18. second clamping block; 19. second baffle; 20. driving motor; 21. screw; 22. dual-axis motor; 23. transmission shaft; 24. gear; 25. toothed plate; 26. lifting plate; 27. connecting block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 5 As shown, the utility model provides a clamp for metal plate tensile test, including:

[0026] A support rod 1, a workbench 2 is fixedly mounted on the top of the support rod 1;

[0027] A lifting mechanism, the lifting mechanism is arranged on the left and right sides of the top of the workbench 2;

[0028] Among them, the lifting mechanism includes a lifting motor 3, the bottom of the lifting motor 3 is fixedly connected to the top of the workbench 2, the other end of the output shaft of the lifting motor 3 is fixedly sleeved with a rotating shaft 4, the outer surface of the rotating shaft 4 is fixedly sleeved with a rotating rod 5, the other end of the rotating rod 5 is fixedly sleeved with a round shaft 6, the outer surface of the round shaft 6 is movably connected with a hollow block 7, the top of the hollow block 7 is fixedly connected with a connecting rod 8, the left side of the connecting rod 8 is fixedly connected with a movable rod 9, the outer surface of the movable rod 9 is movably sleeved with a fixed block 10, the bottom end of the fixed block 10 is fixedly connected to the top of the workbench 2, the inner wall outside the fixed block 10 is movably connected to the outer surface of the connecting rod 8, there are two movable rods 9, a cross bar 11 is fixedly installed between the two movable rods 9, and the upward movement of the connecting rod 8 drives the movable rod 9 and the cross bar 11 to move upward.

[0029] When the lifting motor 3 is running, the rotating shaft 4 will drive the rotating rod 5 to rotate, and then the round shaft 6 will rotate and squeeze to push the hollow block 7 to move upward, so that the connecting rod 8 moves upward, driving the movable rod 9 and the cross bar 11 to move upward, thereby achieving the purpose of raising the height of the cross bar 11.

[0030] Among them, a limiting groove 12 is opened inside the cross bar 11, and the inner wall of the limiting groove 12 is movably connected with a movable block 13, and a first pneumatic cylinder 14 is fixedly installed on the top of the movable block 13. The bottom of the first pneumatic cylinder 14 passes through the movable block 13 and extends to the bottom of the movable block 13 and is fixedly connected with a first clamping plate 15. The right end of the first clamping plate 15 is movably connected with a first baffle plate 16, and the bottom of the first baffle plate 16 is movably connected to the top of the workbench 2.

[0031] When the first pneumatic cylinder 14 is in operation, it will push the first clamping plate 15 to move downward to clamp and fix the metal plate.

[0032] Among them, a second pneumatic cylinder 17 is fixedly installed on the left side of the top of the cross bar 11, the bottom of the second pneumatic cylinder 17 penetrates the cross bar 11 and extends to the bottom of the cross bar 11 and is fixedly connected with a second clamp block 18, the left side of the second clamp block 18 is movably connected with a second baffle 19, the bottom of the second baffle 19 is fixedly connected to the top of the workbench 2, and the top of the second baffle 19 penetrates the movable rod 9 and extends to the top of the movable rod 9.

[0033] When the second pneumatic cylinder 17 is in operation, it will push the second clamping block 18 to move downward to clamp and fix the metal plate.

[0034] A drive motor 20 is fixedly installed in the middle of the right side of the workbench 2 , and a lead screw 21 is fixedly sleeved on the other end of the output shaft of the drive motor 20 . The left end of the lead screw 21 passes through the workbench 2 and extends to the inside of the workbench 2 .

[0035] When the driving motor 20 is running, the lead screw 21 will rotate.

[0036] The outer surface of the lead screw 21 is threadedly sleeved with a connecting block 27 , the top of the connecting block 27 is fixedly connected to the bottom of the first baffle 16 , and the outer surface of the connecting block 27 is movably connected to the inner wall of the workbench 2 .

[0037] The rotation of the lead screw 21 will drive the connecting block 27 to move rightward, thereby causing the first baffle 16 to drive the first clamping plate 15 to move rightward. The rightward movement of the first clamping plate 15 will drive the movable block 13 and the first pneumatic cylinder 14 to move rightward, thereby achieving the purpose of performing a tensile test on the metal sheet.

[0038] A dual-axis motor 22 is fixedly installed in the middle of the bottom of the workbench 2 , a transmission shaft 23 is fixedly sleeved on the other end of the output shaft of the dual-axis motor 22 , and a gear 24 is fixedly sleeved on the outer surface of the transmission shaft 23 .

[0039] When the dual-axis motor 22 is running, the transmission shaft 23 will drive the gear 24 to rotate.

[0040] Among them, the outer surface of the gear 24 is meshed with a tooth plate 25, and the right side of the tooth plate 25 is fixedly connected with a lifting plate 26. The top of the lifting plate 26 passes through the workbench 2 and extends to the top of the workbench 2. The gear 24 and the tooth plate 25 are meshed to drive the lifting plate 26 to move upward.

[0041] The gear 24 rotates and meshes with the tooth plate 25, thereby driving the lifting plate 26 to move upward, thereby preventing debris from splashing when the metal plate breaks.

[0042] The working principle and use process of this utility model:

[0043] When the operator conducts a tensile test on a metal sheet with a large thickness, starting the lifting motor 3 will cause the rotating shaft 4 to drive the rotating rod 5 to rotate, thereby causing the round shaft 6 to rotate and squeeze the hollow block 7 to move upward. The upward movement of the hollow block 7 will drive the connecting rod 8 and the movable rod 9 to move upward. The upward movement of the movable rod 9 drives the cross bar 11 to move upward, thereby causing the first pneumatic cylinder 14 and the second pneumatic cylinder 17 to move upward, increasing the clamping range of the first clamp 15 and the second clamp block 18. At this time, the operator places the metal sheet on the top of the first baffle 16 and the second baffle 19. At this time, the first pneumatic cylinder 14 and the second pneumatic cylinder 17 are started, which will respectively push the first clamp 15 and the second clamp block 18 downward until they contact the metal sheet and clamp it.

[0044] However, the tensile test of metal plates can easily cause the plates to break. At this time, starting the dual-axis motor 22 will cause the transmission shaft 23 to drive the gear 24 to rotate, and then the gear 24 and the tooth plate 25 will engage and connect to drive the lifting plate 26 to move upward, thereby preventing debris from splashing when the metal plate breaks.

[0045] Then, starting the driving motor 20 will cause the lead screw 21 to rotate and drive the connecting block 27 to move rightward. The rightward movement of the connecting block 27 will drive the first baffle plate 16 and the first clamping plate 15 to move rightward, thereby realizing the tensile test of the metal sheet.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for metal sheet tensile testing, characterized in that: Included are: A support rod (1), a workbench (2) being fixedly mounted on the top of the support rod (1); A lifting mechanism, the lifting mechanism being arranged on the left and right sides of the top of the workbench (2); The lifting mechanism comprises a lifting motor (3), the bottom of the lifting motor (3) is fixedly connected to the top of the workbench (2), the other end of the output shaft of the lifting motor (3) is fixedly sleeved with a rotating shaft (4), the outer surface of the rotating shaft (4) is fixedly sleeved with a rotating rod (5), the other end of the rotating rod (5) is fixedly sleeved with a round shaft (6), the outer surface of the round shaft (6) is movably connected with a hollow block (7), the top of the hollow block (7) is fixedly connected with a connecting rod (8), and the connecting rod (8) is fixedly sleeved with the outer surface of the hollow block (7). A movable rod (9) is fixedly connected to the left side of the connecting rod (8); a fixed block (10) is movably sleeved on the outer surface of the movable rod (9); the bottom end of the fixed block (10) is fixedly connected to the top of the workbench (2); the inner wall of the outer side of the fixed block (10) is movably connected to the outer surface of the connecting rod (8); there are two movable rods (9); a cross bar (11) is fixedly installed between the two movable rods (9); the upward movement of the connecting rod (8) drives the movable rod (9) and the cross bar (11) to move upward.

2. A metal plate tensile test fixture according to claim 1, characterized in that: A limiting groove (12) is provided inside the cross bar (11), and a movable block (13) is movably connected to the inner wall of the limiting groove (12), and a first pneumatic cylinder (14) is fixedly installed on the top of the movable block (13); the bottom of the first pneumatic cylinder (14) passes through the movable block (13) and extends to the bottom of the movable block (13) and is fixedly connected to a first clamping plate (15); the right end of the first clamping plate (15) is movably connected to a first baffle plate (16), and the bottom of the first baffle plate (16) is movably connected to the top of the workbench (2).

3. A metal plate tensile test fixture according to claim 1, characterized in that: A second pneumatic cylinder (17) is fixedly installed on the left side of the top of the cross bar (11); the bottom of the second pneumatic cylinder (17) passes through the cross bar (11) and extends to the bottom of the cross bar (11) and is fixedly connected to a second clamping block (18); the left side of the second clamping block (18) is movably connected to a second baffle (19); the bottom of the second baffle (19) is fixedly connected to the top of the workbench (2); the top of the second baffle (19) passes through the movable rod (9) and extends to the top of the movable rod (9).

4. The metal plate tensile test fixture according to claim 1, characterized in that: A drive motor (20) is fixedly mounted in the middle of the right side of the workbench (2), a lead screw (21) is fixedly sleeved on the other end of the output shaft of the drive motor (20), and the left end of the lead screw (21) passes through the workbench (2) and extends into the interior of the workbench (2).

5. A metal plate tensile test fixture according to claim 4, characterized in that: The outer surface of the lead screw (21) is threadedly sleeved with a connecting block (27), the top of the connecting block (27) is fixedly connected to the bottom of the first baffle (16), and the outer surface of the connecting block (27) is movably connected to the inner wall of the workbench (2).

6. The metal plate tensile test fixture according to claim 1, characterized in that: A double-shaft motor (22) is fixedly mounted in the middle of the bottom of the workbench (2), a transmission shaft (23) is fixedly sleeved on the other end of the output shaft of the double-shaft motor (22), and a gear (24) is fixedly sleeved on the outer surface of the transmission shaft (23).

7. A metal plate tensile test fixture according to claim 6, characterized in that: The outer surface of the gear (24) is meshedly connected with a toothed plate (25), and the right side of the toothed plate (25) is fixedly connected with a lifting plate (26). The top of the lifting plate (26) passes through the workbench (2) and extends to the top of the workbench (2). The gear (24) and the toothed plate (25) are meshed to drive the lifting plate (26) to move upward.

Images