A two-station drop tester for sample fatigue life testing

Abstract

The invention relates to the technical field of drop test machines, and specifically to a two-station drop test machine for sample fatigue life detection, comprising an operating table, a vertical plate fixed on the top of the operating table; a connecting rod, a U-shaped rod fixed on the end of the connecting rod, a circular plate arranged at the end of the U-shaped rod, a plug-in board arranged on the surface of the circular plate, a disc arranged on the surface of the plug-in board, a tilting rod fixed on the surface of the disc, a rolling rod arranged at the end of the tilting rod; and a suction cup arranged on the surface of the disc; the beneficial effects are as follows: a workpiece is placed at the bottom of the disc, a vacuum is sucked by a vacuum machine connected to the end of an air pipe, the workpiece is adsorbed to the end of the disc by the suction cup, and a magnet disc is adsorbed to the bottom of the workpiece, the end of the disc is plugged into the plug-in board through a rotating shaft, the plug-in board is plugged into the circular plate, the surface of the plug-in board is provided with a second tooth, the inner wall of the circular plate is provided with a first tooth, the first tooth meshes with the second tooth, and the angle of the plug-in board can be adjusted.

Description

Technical Field

[0001] The invention relates to the field of drop test machines, in particular to a two-station drop test machine for sample fatigue life detection. Background Art

[0002] A drop tester is a machine that is used to test the damage of product packaging caused by falling and to evaluate the impact strength during transportation and handling.

[0003] In the prior art, a workpiece to be tested is clamped by a clamping assembly, and the workpiece is allowed to fall freely at a fixed position to implement a drop test on the workpiece;

[0004] However, when testing a workpiece, it is necessary to test the state of the workpiece when it falls at different angles. After the workpiece falls, it is necessary to reposition the workpiece and clamp it again through the clamping assembly, resulting in low efficiency. Summary of the invention

[0005] The object of the present invention is to provide a two-station drop tester for sample fatigue life detection to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a two-station drop tester for sample fatigue life detection, comprising:

[0007] An operating table, the top of which is fixed with a vertical plate;

[0008] A connecting rod, a U-shaped rod is fixed at the end of the connecting rod, a circular plate is arranged at the end of the U-shaped rod, a plug plate is arranged on the surface of the circular plate, a disc is arranged on the surface of the plug plate, a tilting rod is fixed on the surface of the disc, and a rolling rod is arranged at the end of the tilting rod; and

[0009] The suction cup is arranged on the surface of the disc.

[0010] Preferably, a hydraulic cylinder is fixed to the bottom of the vertical plate, a cross bar is provided at the bottom of the hydraulic cylinder, the hydraulic cylinder drives the cross bar to rise and fall, a connecting rope is connected to the bottom of the hydraulic cylinder, a support rod is fixed to the top of the operating table, a roller is provided at the end of the support rod, the roller can rotate at the end of the support rod, and the connecting rope is located on the surface of the roller.

[0011] Preferably, a limit frame is fixed on the surface of the operating table, a lifting plate is placed inside the limit frame, the lifting plate can be lifted and lowered inside the limit frame, a connecting rod is fixed on the surface of the lifting plate, the connecting rod is lifted and lowered along with the lifting plate, and the U-shaped rod is lifted and lowered along with the connecting rod.

[0012] Preferably, the end of the U-shaped rod is fixed on the surface of a circular plate, a plug-in plate is plugged into the surface of the circular plate, the plug-in plate can move inside the circular plate, the inner wall of the circular plate is provided with a first tooth, the surface of the plug-in plate is provided with a second tooth, and the first tooth is meshed with the second tooth.

[0013] Preferably, the surface of the plug board is provided with a groove, an elastic sheet is provided in the groove, a swing rod is provided at the end of the elastic sheet, the end of the disc is hinged to the surface of the plug board through a rotating shaft, and the disc can swing along the rotating shaft.

[0014] Preferably, the swing rod is fixed on the surface of the disc, and the swing rod swings along with the disc, and after the swing rod swings, the elastic sheet is stretched and compressed.

[0015] Preferably, an air pipe is fixed on the surface of the disc, the interior of the air pipe is communicated with the interior of the disc, the end of the air pipe is connected to a vacuum pump, and a suction cup is provided on the surface of the disc, and the workpiece is adsorbed on the surface of the suction cup.

[0016] Preferably, a tilting rod is fixed on the surface of the disc, the tilting rod is located at one end of the disc, and a rolling rod is provided at the end of the tilting rod. The rolling rod can move at the end of the tilting rod. When the disc descends, the rolling rod first contacts the surface of the operating table.

[0017] Preferably, a centralizing groove is provided on the surface of the operating table, a hole is provided on the surface of the centralizing groove, a connecting rope is located in the hole, and the connecting rope can be raised and lowered in the hole, a magnet disk is fixed at the end of the connecting rope, the magnet disk is raised and lowered along with the connecting rope, and the magnet disk is adsorbed on the bottom of the workpiece.

[0018] Preferably, balls are arranged on the surface of the magnet disk, and multiple groups of balls are arranged. The balls can roll on the magnet disk, and the balls are made of magnets. The balls are located between the workpiece and the magnet disk, and the balls are adsorbed on the surface of the workpiece.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The workpiece of the present invention is placed at the bottom of the disc, and vacuum is sucked by a vacuum machine connected to the end of the air pipe. The workpiece is adsorbed to the end of the disc by the suction cup, and the magnet disc is adsorbed to the bottom of the workpiece. The end of the disc is plugged into the plug-in board through a rotating shaft, and the plug-in board is plugged into the circular plate. The surface of the plug-in board is provided with second teeth, and the inner wall of the circular plate is provided with first teeth. The first teeth are meshed with the second teeth to adjust the angle of the plug-in board and the angle of the disc. A swing rod is fixed on the surface of the disc, and an elastic sheet is connected to the surface of the swing rod. The other end of the elastic sheet is connected to the inside of the plug-in board. When the suction cup releases the adsorption of the workpiece, the workpiece falls off, and the workpiece is adjusted. In the current test, the hydraulic cylinder drives the cross bar to descend, and the cross bar drives the lifting plate to descend. The lifting plate drives the disc to descend through the connecting rod. After the disc descends, the rolling rod is held on the surface of the operating table, so that the disc swings along the rotating shaft, and the elastic sheet is compressed. The hydraulic cylinder drives the cross bar to descend and pulls the connecting rope, so that the connecting rope is pulled, and the magnet disc descends with the connecting rope, so that the workpiece is concentrated in the central groove, and the surface of the magnet disc is provided with balls. The balls roll, so that the workpiece adsorbed on the surface of the balls is concentrated in the center of the central groove. When the disc descends, the workpiece is aligned with the position of the suction cup, and the workpiece can be quickly adsorbed, and the test is carried out again. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0023] Figure 3 It is a schematic structural diagram of another viewing angle of the cross section of the present invention;

[0024] Figure 4 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 5 It is a schematic diagram of the circular plate structure of the present invention;

[0026] Figure 6 This is a structural schematic diagram of the circular plate of the present invention from another viewing angle;

[0027] Figure 7 for Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0028] In the figure: operating table 1, vertical plate 2, hydraulic cylinder 3, lifting plate 4, limit frame 5, connecting rope 6, support rod 7, roller 8, cross bar 9, ball 10, magnet disk 11, central groove 13, connecting rod 14, air pipe 15, plug-in plate 16, circular plate 17, rolling rod 18, tilting rod 19, disc 20, suction cup 21, U-shaped rod 22, first teeth 23, second teeth 24, slot 26, swing rod 27, elastic sheet 28. DETAILED DESCRIPTION

[0029] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1

[0031] See also Figure 1-Figure 7 The present invention provides a technical solution: a two-station drop tester for sample fatigue life detection, comprising: an operating table 1, a vertical plate 2 is fixed on the top of the operating table 1; a connecting rod 14, a U-shaped rod 22 is fixed on the end of the connecting rod 14, a circular plate 17 is arranged at the end of the U-shaped rod 22, a plug-in board 16 is arranged on the surface of the circular plate 17, a disk 20 is arranged on the surface of the plug-in board 16, a tilting rod 19 is fixed on the surface of the disk 20, and a rolling rod 18 is arranged at the end of the tilting rod 19; and a suction cup 21, which is arranged on the surface of the disk 20, a workpiece is placed on the bottom of the disk 20, and a vacuum is sucked by a vacuum machine connected to the end of the air pipe 15, the workpiece is adsorbed on the end of the disk 20 by the suction cup 21, and the magnet disk 11 is adsorbed on the bottom of the workpiece, and the end of the disk 20 is plugged into the plug-in board 16 through a rotating shaft.

[0032] Embodiment 2

[0033] On the basis of Example 1, a hydraulic cylinder 3 is fixed at the bottom of the vertical plate 2, and a cross bar 9 is arranged at the bottom of the hydraulic cylinder 3. The hydraulic cylinder 3 drives the cross bar 9 to rise and fall. A connecting rope 6 is connected to the bottom of the hydraulic cylinder 3. A support rod 7 is fixed to the top of the operating table 1. A roller 8 is arranged at the end of the support rod 7. The roller 8 can rotate at the end of the support rod 7. The connecting rope 6 is located on the surface of the roller 8. The hydraulic cylinder 3 drives the cross bar 9 to descend and pulls the connecting rope 6, so that the connecting rope 6 is pulled, and the magnet disk 11 descends with the connecting rope 6, so that the workpiece is concentrated in the concentration groove 13.

[0034] A limiting frame 5 is fixed to the surface of the operating table 1, and a lifting plate 4 is placed inside the limiting frame 5. The lifting plate 4 can be lifted and lowered inside the limiting frame 5. A connecting rod 14 is fixed to the surface of the lifting plate 4. The connecting rod 14 is lifted and lowered along with the lifting plate 4, and the U-shaped rod 22 is lifted and lowered along with the connecting rod 14. The hydraulic cylinder 3 drives the cross bar 9 to descend, and the cross bar 9 drives the lifting plate 4 to descend. The lifting plate 4 drives the disc 20 to descend through the connecting rod 14. After the disc 20 descends, the rolling rod 18 is held on the surface of the operating table 1, so that the disc 20 swings along the rotating shaft.

[0035] The end of the U-shaped rod 22 is fixed to the surface of the circular plate 17, and the plug-in plate 16 is plugged into the surface of the circular plate 17. The plug-in plate 16 can move inside the circular plate 17. The inner wall of the circular plate 17 is provided with a first tooth 23, and the surface of the plug-in plate 16 is provided with a second tooth 24. The first tooth 23 is meshed with the second tooth 24. The inner wall of the circular plate 17 is provided with a first tooth 23, and the first tooth 23 is meshed with the second tooth 24. The angle of the plug-in plate 16 can be adjusted, and the angle of the disc 20 can be adjusted.

[0036] Embodiment 3

[0037] On the basis of the second embodiment, a groove 26 is provided on the surface of the plug board 16, an elastic sheet 28 is provided in the groove 26, a swing rod 27 is provided at the end of the elastic sheet 28, the end of the disk 20 is hinged to the surface of the plug board 16 through a rotating shaft, the disk 20 can swing along the rotating shaft, the suction cup 21 adsorbs the workpiece to the end of the disk 20, and adsorbs the magnet disk 11 to the bottom of the workpiece, and the end of the disk 20 is plugged into the plug board 16 through the rotating shaft.

[0038] The swing rod 27 is fixed on the surface of the disc 20, and the swing rod 27 swings with the disc 20. After the swing rod 27 swings, the elastic sheet 28 is stretched and compressed. The swing rod 27 is fixed on the surface of the disc 20, and the surface of the swing rod 27 is connected to the elastic sheet 28. The other end of the elastic sheet 28 is connected to the inside of the plug-in board 16. When the suction cup 21 releases the adsorption of the workpiece, the workpiece falls and the test is realized.

[0039] An air pipe 15 is fixed on the surface of the disc 20, and the interior of the air pipe 15 is communicated with the interior of the disc 20. The end of the air pipe 15 is connected to a vacuum pump. A suction cup 21 is provided on the surface of the disc 20, and a workpiece is adsorbed on the surface of the suction cup 21. After the suction cup 21 releases the adsorption of the workpiece, the workpiece falls to achieve the test. The cross bar 9 is driven down by the hydraulic cylinder 3, and the cross bar 9 drives the lifting plate 4 to descend. The lifting plate 4 drives the disc 20 to descend through the connecting rod 14. After the disc 20 is descended, the rolling rod 18 is supported on the surface of the operating table 1.

[0040] Embodiment 4

[0041] On the basis of the third embodiment, a tilting rod 19 is fixed to the surface of the disc 20, and the tilting rod 19 is located at one end of the disc 20, and a rolling rod 18 is provided at the end of the tilting rod 19, and the rolling rod 18 can move at the end of the tilting rod 19. When the disc 20 descends, the rolling rod 18 first contacts the surface of the operating table 1.

[0042] A centralizing groove 13 is provided on the surface of the operating table 1, and a hole is provided on the surface of the centralizing groove 13. The connecting rope 6 is located in the hole and can be raised and lowered in the hole. A magnet disk 11 is fixed to the end of the connecting rope 6. The magnet disk 11 is raised and lowered along with the connecting rope 6, and the magnet disk 11 is adsorbed on the bottom of the workpiece. The hydraulic cylinder 3 pulls the connecting rope 6 during the process of the cross bar 9 descending, so that the connecting rope 6 is pulled, and the magnet disk 11 descends along with the connecting rope 6, so that the workpiece is concentrated in the centralizing groove 13, and a ball 10 is provided on the surface of the magnet disk 11. The ball 10 rolls, so that the workpiece adsorbed on the surface of the ball 10 is concentrated to the center position of the centralizing groove 13.

[0043] The surface of the magnet disk 11 is provided with balls 10, and there are multiple groups of balls 10. The balls 10 can roll on the magnet disk 11. The balls 10 are made of magnets and are located between the workpiece and the magnet disk 11. The balls 10 are adsorbed on the surface of the workpiece. The surface of the magnet disk 11 is provided with balls 10. The balls 10 roll so that the workpiece adsorbed on the surface of the balls 10 is concentrated at the center of the concentration groove 13. When the disc 20 descends, the workpiece is aligned with the position of the suction cup 21, so that the workpiece can be quickly adsorbed.

[0044] In actual use, the workpiece is placed at the bottom of the disc 20, and vacuum is sucked by a vacuum machine connected to the end of the air pipe 15. The workpiece is adsorbed to the end of the disc 20 through the suction cup 21, and the magnet disc 11 is adsorbed to the bottom of the workpiece. The end of the disc 20 is plugged into the plug-in board 16 through the rotating shaft, and the plug-in board 16 is plugged into the circular plate 17. The surface of the plug-in board 16 is provided with a second tooth 24, and the inner wall of the circular plate 17 is provided with a first tooth 23. The first tooth 23 is meshed with the second tooth 24 to adjust the angle of the plug-in board 16 and the angle of the disc 20. A swing rod 27 is fixed on the surface of the disc 20, and an elastic sheet 28 is connected to the surface of the swing rod 27. The other end of the elastic sheet 28 is connected to the inside of the plug-in board 16. When the suction cup 21 releases the adsorption of the workpiece, the workpiece The workpiece falls and the test is realized. The cross bar 9 is driven down by the hydraulic cylinder 3, and the cross bar 9 drives the lifting plate 4 to descend. The lifting plate 4 drives the disc 20 to descend through the connecting rod 14. After the disc 20 descends, the rolling rod 18 is held on the surface of the operating table 1, so that the disc 20 swings along the rotating shaft, and the elastic sheet 28 is compressed. The hydraulic cylinder 3 drives the cross bar 9 to descend and pulls the connecting rope 6, so that the connecting rope 6 is pulled, and the magnet disk 11 descends with the connecting rope 6, so that the workpiece is concentrated in the central groove 13, and the surface of the magnet disk 11 is provided with a ball 10, and the ball 10 rolls, so that the workpiece adsorbed on the surface of the ball 10 is concentrated in the center position of the central groove 13, and when the disc 20 descends, the workpiece is aligned with the position of the suction cup 21, so that the workpiece can be quickly adsorbed and tested again.

[0045] 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 two-station drop tester for sample fatigue life testing, characterized in that: include: An operating table (1), a vertical plate (2) being fixed on the top of the operating table (1); A connecting rod (14), a U-shaped rod (22) is fixed at the end of the connecting rod (14), a circular plate (17) is arranged at the end of the U-shaped rod (22), a plug plate (16) is arranged on the surface of the circular plate (17), a circular disc (20) is arranged on the surface of the plug plate (16), a tilting rod (19) is fixed on the surface of the circular disc (20), and a rolling rod (18) is arranged at the end of the tilting rod (19); and The suction cup (21) is arranged on the surface of the disc (20), the surface of the operating table (1) is fixed with a limit frame (5), a lifting plate (4) is placed inside the limit frame (5), the lifting plate (4) can be lifted and lowered inside the limit frame (5), a connecting rod (14) is fixed on the surface of the lifting plate (4), the connecting rod (14) is lifted and lowered along with the lifting plate (4), and the U-shaped rod (22) is lifted and lowered along with the connecting rod (14), the end of the U-shaped rod (22) is fixed on the surface of the circular plate (17), the surface of the circular plate (17) is plugged with a plug-in plate (16), the plug-in plate (16) can move inside the circular plate (17), and the inner wall of the circular plate (17) is provided with a A tooth (23) is provided on the surface of the plug-in board (16), a second tooth (24) is provided on the surface of the plug-in board (16), the first tooth (23) meshes with the second tooth (24), a groove (26) is provided on the surface of the plug-in board (16), an elastic sheet (28) is provided in the groove (26), a swing rod (27) is provided at the end of the elastic sheet (28), the end of the disk (20) is hinged to the surface of the plug-in board (16) through a rotating shaft, the disk (20) can swing along the rotating shaft, the swing rod (27) is fixed on the surface of the disk (20), and the swing rod (27) swings with the disk (20), and after the swing rod (27) swings, the elastic sheet (28) is stretched and compressed.

2. A two-station drop tester for sample fatigue life testing according to claim 1, characterized in that: A hydraulic cylinder (3) is fixed at the bottom of the vertical plate (2), a cross bar (9) is arranged at the bottom of the hydraulic cylinder (3), the hydraulic cylinder (3) drives the cross bar (9) to be raised and lowered, a connecting rope (6) is connected to the bottom of the hydraulic cylinder (3), a support rod (7) is fixed at the top of the operating table (1), a roller (8) is arranged at the end of the support rod (7), the roller (8) can rotate at the end of the support rod (7), and the connecting rope (6) is located on the surface of the roller (8).

3. A two-station drop tester for sample fatigue life testing according to claim 2, characterized in that: An air pipe (15) is fixed on the surface of the disc (20), the interior of the air pipe (15) is communicated with the interior of the disc (20), the end of the air pipe (15) is connected to a vacuum pump, and a suction cup (21) is provided on the surface of the disc (20), and a workpiece is adsorbed on the surface of the suction cup (21).

4. A two-station drop tester for sample fatigue life testing according to claim 3, characterized in that: A tilting rod (19) is fixed to the surface of the disc (20), the tilting rod (19) being located at one end of the disc (20), and a rolling rod (18) is provided at the end of the tilting rod (19), the rolling rod (18) being able to move at the end of the tilting rod (19), and when the disc (20) descends, the rolling rod (18) first contacts the surface of the operating table (1).

5. A two-station drop tester for sample fatigue life testing according to claim 4, characterized in that: The surface of the operating table (1) is provided with a central groove (13), the surface of the central groove (13) is provided with a hole, the connecting rope (6) is located in the hole, and the connecting rope (6) can be raised and lowered in the hole, a magnet disk (11) is fixed to the end of the connecting rope (6), the magnet disk (11) is raised and lowered along with the connecting rope (6), and the magnet disk (11) is adsorbed on the bottom of the workpiece.

6. A two-station drop tester for sample fatigue life testing according to claim 5, characterized in that: The surface of the magnet disk (11) is provided with balls (10), and the balls (10) are provided in a plurality of groups. The balls (10) can roll on the magnet disk (11), and the balls (10) are made of magnets. The balls (10) are located between the workpiece and the magnet disk (11), and the balls (10) are adsorbed on the surface of the workpiece.

Images