Drum-type drop test machine

Abstract

The utility model belongs to the technical field of drop test equipment, and particularly relates to a drum-type drop test machine which comprises a working box, and a controller is arranged at the upper part of the front side of the working box; the rotating shaft is rotationally assembled at the right upper part of the working box; square sliding grooves are formed in the sides, close to each other, of the two assembly boxes, the upper end and the lower end of the working frame extend into the two square sliding grooves correspondingly, openings are formed in the right sides of the two assembly boxes, and sealing doors are hinged to the interiors of the two openings; the second driving assembly is installed on the rear side of the working frame and used for driving the two assembling boxes to be close to or away from each other. The two impact force detection plates are fixedly installed on the inner walls of the sides, away from each other, of the two assembly boxes correspondingly. The two opening and closing sealing mechanisms are installed in the two assembling boxes correspondingly. The device is simple in structure and reasonable in design, can detect and record the impact force generated by each electronic impact during use, and is convenient for workers to accurately judge the anti-impact performance of a product.

Description

Technical Field

[0001] This utility model belongs to the technical field of drop test equipment, specifically relating to a roller-type drop test machine. Background Technology

[0002] Intelligent instruments are automated measurement and control devices that integrate computer technology, sensor technology, microelectronics technology, and automatic control technology. They can efficiently meet the complex needs of fields such as industrial automation, energy management, and environmental monitoring. After the intelligent instruments are manufactured, they need to undergo a series of tests. Among them, testing the impact resistance of intelligent instruments using a roller drop tester is an essential step. Although existing roller drop testers can perform continuous drop tests on electronic products, the impact force generated by each impact of the electronic product with the inner wall of the roller is usually impossible to calculate. Therefore, it is not possible to accurately determine the impact resistance performance of electronic products, and their functionality needs to be improved. Utility Model Content

[0003] The purpose of this invention is to provide a roller-type drop tester that can detect and record the impact force generated by each electronic impact during use, making it easier for staff to accurately judge the impact resistance performance of the product.

[0004] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:

[0005] A roller-type drop tester, comprising

[0006] A work box, wherein a controller is provided on the upper front side of the work box;

[0007] A rotating shaft is rotatably mounted on the upper right side of the work box;

[0008] A working frame, which is fixedly installed on the right end of the rotating shaft;

[0009] There are two assembly boxes, which are arranged vertically. Each assembly box has a square groove on one side close to the other. The upper and lower ends of the working frame extend into the two square grooves respectively. Each assembly box has an opening on its right side, and each opening is fitted with a hinged door.

[0010] The first drive assembly is installed inside the upper side of the assembly box and is used to drive the rotating shaft to rotate.

[0011] The second drive assembly is installed on the rear side of the work frame and is used to drive the two assembly boxes to move closer or further apart from each other.

[0012] Two impact force testing plates are provided, and the two impact force testing plates are respectively fixedly installed on the inner wall of two assembly boxes on opposite sides of each other;

[0013] There are two opening and closing mechanisms, and the two opening and closing mechanisms are respectively installed inside the two assembly boxes;

[0014] The two opening and closing mechanisms, the two impact force detection plates, and the first drive assembly are all electrically connected to the controller.

[0015] As a preferred technical solution, the opening and closing mechanism includes two baffles. Slide grooves are provided on both the front and rear sides of the assembly box. The two baffles are slidably assembled in the two slide grooves. U-shaped assembly plates are fixedly installed on both the front and rear sides of the assembly box. Multiple electric push rods are fixedly installed on the side of the two U-shaped assembly plates that are far apart from each other. The telescopic ends of the two multiple electric push rods are fixedly connected to the side of the two baffles that are far apart from each other. Both multiple electric push rods are electrically connected to the controller.

[0016] As a preferred technical solution, a first photoelectric sensor is installed on the top of the work box, and a second photoelectric sensor is fixedly installed on the left side of each of the two assembly boxes. An electric push rod is fixedly installed on the upper side inside the work box, and the telescopic end of the electric push rod is fixedly connected to the bottom of the first photoelectric sensor. The electric push rod, the first photoelectric sensor, and the two second photoelectric sensors are all electrically connected to the controller.

[0017] As a preferred technical solution, the second drive component includes an assembly block, which is horizontally installed on the rear side of the working frame. A circular groove is opened in the center of the top of the assembly block, and a bidirectional threaded rod is rotatably assembled inside the circular groove. Transmission blocks are fixedly installed on the rear sides of the two assembly boxes. The two transmission blocks are respectively threaded to the forward thread section and the reverse thread section of the bidirectional threaded rod. A turntable is fixedly installed at the lower end of the bidirectional threaded rod.

[0018] As a preferred technical solution, the first drive component includes a motor, which is fixedly installed on the upper side inside the work box. The output shaft of the motor is connected to the rotating shaft through a gearbox, and the motor is electrically connected to the controller.

[0019] The beneficial effects of this utility model are:

[0020] During use, two impact force testing plates can be used to detect and record the impact force generated by the product under test each time it is impacted. In this way, the impact resistance performance of the tested product can be judged by the test data during continuous testing, which further improves the accuracy of the test results and enhances the functionality. At the same time, the drop height of the tested product can be adjusted according to the usage requirements, thereby changing the impact force and making it easier to improve the comprehensiveness of the test results. Attached Figure Description

[0021] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a partial structural diagram of the present invention. Figure 1 ;

[0024] Figure 3 This is a side view of the structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the rear view structure of this utility model;

[0026] Figure 5 This is a partial structural diagram of the present invention. Figure 2 .

[0027] Reference numerals: 1. Working box; 11. Controller; 2. Rotating shaft; 3. Working frame; 31. Assembly box; 32. Sealing door; 4. Second drive assembly; 41. Assembly block; 42. Bidirectional threaded rod; 43. Transmission block; 44. Turntable; 5. Impact force detection plate; 6. Opening and closing mechanism; 6. Baffle; 61. Slide groove; 62. U-shaped assembly plate; 63. Multi-section electric push rod; 64. First photoelectric sensor; 7. Second photoelectric sensor; 71. Detailed Implementation

[0028] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] like Figure 1-5 As shown, this utility model discloses a roller-type drop test machine, comprising:

[0030] Work box 1, with controller 11 located on the upper front side of work box 1;

[0031] Rotary shaft 2 is rotatably mounted on the upper right side of work box 1;

[0032] Work frame 3 is fixedly installed on the right end of rotating shaft 2;

[0033] There are two assembly boxes 31, which are arranged vertically. Each assembly box 31 has a square groove on one side close to the other. The upper and lower ends of the working frame 3 extend into the two square grooves respectively. Each assembly box 31 has an opening on the right side, and a closed door 32 is hinged inside each opening. Both assembly boxes 31 are slidably connected to the working frame 2. A door lock mechanism is provided between the closed door 32 and the assembly box 31.

[0034] The first drive assembly is installed inside the upper part of the assembly box 1 and is used to drive the rotating shaft 2 to rotate. Specifically, the first drive assembly includes a motor, which is fixedly installed inside the upper part of the work box 1. The output shaft of the motor is connected to the rotating shaft 2 through a gearbox, and the motor is electrically connected to the controller 11. The operator can input control signals through the control terminal of the controller 11 to control the rotation speed and working mode of the motor output shaft. The motor output shaft can be set to rotate continuously, thereby driving the work frame 3 to rotate continuously, which is convenient for continuous and uninterrupted testing of the impact resistance performance of the smart instrument. The start time of the motor can also be controlled so that the motor drives the work frame 3 to rotate half a turn each time. This mode is convenient for detecting the impact force generated when the smart instrument is dropped from a fixed height each time, which is convenient for further judging the impact resistance performance of the smart instrument.

[0035] The second drive assembly 4 is installed on the rear side of the working frame 3 and is used to drive the two assembly boxes 31 to move closer or further apart. Specifically, the second drive assembly 4 includes an assembly block 41, which is installed laterally on the rear side of the working frame 3. A circular groove is opened in the center of the top of the assembly block 41, and a bidirectional threaded rod 42 is rotatably assembled inside the circular groove. Transmission blocks 43 are fixedly installed on the rear side of both assembly boxes 31. The two transmission blocks 43 are respectively threaded to the forward thread section and the reverse thread section of the bidirectional threaded rod 42. A turntable 44 is fixedly installed at the lower end of the bidirectional threaded rod 42.

[0036] When it is necessary to adjust the relative distance between the two assembly boxes 31, the operator only needs to rotate the turntable 44. The turntable 44 drives the bidirectional threaded rod 42 to rotate. Since the two transmission blocks 43 are respectively threaded to the forward and reverse threaded sections of the bidirectional threaded rod 42, the rotation of the bidirectional threaded rod 42 can drive the two transmission blocks 43 to move away from or closer to each other, thereby adjusting the relative distance between the two assembly boxes 31. This is suitable for adjusting the drop height of the smart instrument, making it easy to detect the impact force generated at different heights, and then determine the drop resistance of the smart instrument under different impact forces. The operation is simple and convenient.

[0037] Two impact force detection plates 5 are provided, and the two impact force detection plates 5 are fixedly installed on the inner wall of the two assembly boxes 31 respectively, away from each other. The impact force detection plates 5 can be industrial-grade piezoelectric detection plates. Based on the piezoelectric effect, when an object hits the detection plate, the sensor converts the mechanical stress into an electrical signal and calculates the peak impact force and the impact time through the built-in circuit.

[0038] There are two opening and closing mechanisms 6, which are installed inside the two assembly boxes 31 respectively. Specifically, each opening and closing mechanism 6 includes two baffles 61. Slide grooves 62 are provided on both the front and rear sides of the assembly box 31. The two baffles 61 are slidably assembled inside the two slide grooves 62 respectively. U-shaped assembly plates 63 are fixedly installed on both the front and rear sides of the assembly box 31. Multiple electric push rods 64 are fixedly installed on the side of the two U-shaped assembly plates 63 that are far apart from each other. The telescopic ends of the two multiple electric push rods 64 are fixedly connected to the side of the two baffles 61 that are far apart from each other respectively. Both multiple electric push rods 64 are electrically connected to the controller 11. When the drop resistance of the smart instrument needs to be tested, in the initial state, the telescopic ends of the four multi-section electric push rods 64 are all in the retracted state, which then drives the upper and lower baffles 61 to extend out of the slide grooves 62 respectively. The staff activates the two impact force detection plates 5 through the controller 11, and then puts the item to be tested into the lower assembly box 31. Then, the two lower multi-section electric push rods 64 are activated, and the telescopic ends of the two lower multi-section electric push rods 64 extend and push the two lower baffles 61 to close together. Then, the motor is started, and the motor drives the working frame 3 to rotate half a turn, so that the positions of the two assembly boxes 31 are switched. After the motor is started once, the internal control program of the controller 11 automatically controls the telescopic ends of the two upper multi-section electric push rods 64 to retract, and then opens the two baffles 61. The smart instrument located on the baffles 61 falls vertically onto the impact force detection plate 5 at the bottom. The impact force detection plate 5 sends the impact force generated by each impact to the controller 11 through the signal output terminal. The controller 11 stores the impact data in real time.

[0039] After the telescopic ends of the upper multi-section electric push rod 64 retract, after a certain interval, such as ten seconds or five seconds (this interval can be set by the controller 11), the telescopic ends of the two lower multi-section electric push rods 64 will automatically extend, pushing the two lower baffles 61 to close. After the two lower multi-section electric push rods 64 close, the motor will automatically start and drive the two assembly boxes 31 to switch positions again. After the motor starts, the above workflow is repeated to test the impact force generated by the smart instrument during impact. By repeating the above operation process, the impact resistance performance of the smart instrument can be tested, and the impact force generated during each impact can be tested. This allows for accurate judgment of the impact resistance performance of the smart instrument against different impact forces, further enhancing its functionality.

[0040] The two opening and closing mechanisms 6, the two impact force detection plates 5, and the first drive assembly are all electrically connected to the controller 11.

[0041] A first photoelectric sensor 7 is installed on the top of the work box 1. A second photoelectric sensor 71 is fixedly installed on the left side of each of the two assembly boxes 31. An electric push rod is fixedly installed on the upper side inside the work box 1. The telescopic end of the electric push rod is fixedly connected to the bottom of the first photoelectric sensor 7. The electric push rod, the first photoelectric sensor 7 and the two second photoelectric sensors 71 are all electrically connected to the controller 11.

[0042] The first photoelectric sensor 7 is used to receive infrared signals output by the two second photoelectric sensors 7, which facilitates the control of the working frame 3 to maintain a vertical state. When one of the second photoelectric sensors 71 is aligned with the first photoelectric sensor 7, the first photoelectric sensor 7 receives the signal and transmits it to the controller 11. The controller 11 then controls the motor to stop running and automatically controls the telescopic ends of the two multi-section electric push rods 64 located on the upper side to retract, causing the electronic instrument to fall vertically to maximize the impact force. After one detection is completed, when the two multi-section electric push rods 64 on the lower side push the two baffles 61 on the lower side to close, the motor starts automatically and drives the two assembly boxes 31 to switch positions until the second photoelectric sensor 71 is aligned with the first photoelectric sensor 7. The above process is repeated to facilitate the detection of the impact force generated when the electronic instrument is hit. After adjusting the position of the two assembly boxes 31, the position of the two second photoelectric sensors 71 will be changed accordingly. Therefore, the first photoelectric sensor 7 can be moved up and down by the electric push rod to change its position so that it can be aligned with the rotating second photoelectric sensor 71.

[0043] The device is used as follows:

[0044] When testing the drop resistance of the smart instrument, the bottom sealing door 32 is opened and the product is placed into the assembly box 31. Then, the two impact force detection plates 5 and the two lower multi-section electric push rods 64 are activated. Continuous testing is then input via the control button on the controller 11. In continuous testing mode, the motor drives the working frame 3 to rotate half a circle, during which the first photoelectric sensor 7 and the two second photoelectric sensors 71 are activated. After the half-circle rotation is completed, the upper second photoelectric sensor 71 aligns with the first photoelectric sensor 7, the motor automatically stops, the telescopic ends of the two upper multi-section electric push rods 54 retract, the two upper baffles 61 open, and the electronic instrument falls onto the lower impact force detection plate 5. The impact test is performed on the impact force detection plate 5. The impact force detection plate 5 detects and records the impact force generated. After the two multi-section electric push rods 54 on the upper side open, after a certain period of time, the two multi-section electric push rods 54 on the bottom automatically start to push the two baffles 61 to close. Then the motor starts automatically until the two assembly boxes 31 have completed the position swap. The above operation process is repeated to test the drop resistance of the smart instrument and record the impact force. In the future, the two assembly boxes 31 can be adjusted to move away from or closer to each other according to the test requirements to change the impact force. This makes it easier for the staff to accurately calculate the drop resistance of the smart instrument by using the impact force, and the functionality is further improved.

[0045] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A roller-type drop tester, characterized in that: include The work box (1) is equipped with a controller (11) on the upper front side. Rotary shaft (2), which is rotatably mounted on the upper right side of the work box (1); The working frame (3) is fixedly installed on the right end of the rotating shaft (2); There are two assembly boxes (31), which are arranged vertically. The two assembly boxes (31) are provided with square sliding grooves on one side close to each other. The upper and lower ends of the working frame (3) extend into the two square sliding grooves respectively. The two assembly boxes (31) are provided with openings on the right side, and the two openings are hinged with closed doors (32). The first drive assembly is installed inside the upper side of the assembly box (31) and is used to drive the rotating shaft (2) to rotate. The second drive assembly (4) is installed on the rear side of the work frame (3) and is used to drive the two assembly boxes (31) to move closer to each other or further away from each other. Two impact force detection plates (5) are provided, and the two impact force detection plates (5) are respectively fixedly installed on the inner wall of the two assembly boxes (31) on opposite sides. There are two opening and closing mechanisms (6), and the two opening and closing mechanisms (6) are respectively installed inside the two assembly boxes (31); The two opening and closing mechanisms (6), the two impact force detection plates (5), and the first drive assembly are all electrically connected to the controller (11).

2. The roller-type drop tester according to claim 1, characterized in that: The opening and closing mechanism (6) includes two baffles (61). The assembly box (31) has sliding grooves (62) on both the front and rear sides. The two baffles (61) are slidably assembled inside the two sliding grooves (62). The assembly box (31) has U-shaped assembly plates (63) fixedly installed on both the front and rear sides. The two U-shaped assembly plates (63) are fixedly installed with multiple electric push rods (64) on the side away from each other. The telescopic ends of the two electric push rods (64) are fixedly connected to the side away from each other of the two baffles (61). The two electric push rods (64) are electrically connected to the controller (11).

3. The roller-type drop test machine according to claim 2, characterized in that: The top of the work box (1) is equipped with a first photoelectric sensor (7), and the left sides of the two assembly boxes (31) are each fixedly equipped with a second photoelectric sensor (71). An electric push rod is fixedly installed on the upper side inside the work box (1). The telescopic end of the electric push rod is fixedly connected to the bottom of the first photoelectric sensor (7). The electric push rod, the first photoelectric sensor (7) and the two second photoelectric sensors (71) are all electrically connected to the controller (11).

4. The roller-type drop test machine according to claim 1, characterized in that: The second drive assembly (4) includes an assembly block (41), which is horizontally mounted on the rear side of the working frame (3). A circular groove is provided at the center of the top of the assembly block (41), and a bidirectional threaded rod (42) is rotatably mounted inside the circular groove. Transmission blocks (43) are fixedly mounted on the rear side of the two assembly boxes (31). The two transmission blocks (43) are respectively threaded to the forward thread section and the reverse thread section of the bidirectional threaded rod (42). A turntable (44) is fixedly mounted on the lower end of the bidirectional threaded rod (42).

5. A roller-type drop tester according to claim 1, characterized in that: The first drive component includes a motor, which is fixedly installed on the upper side inside the work box (1). The output shaft of the motor is connected to the rotating shaft (2) via a gearbox. The motor is electrically connected to the controller (11).

Images