Sanitary ceramic package drop test device based on automatic grabbing

Abstract

The utility model discloses a sanitary ceramic package drop test device based on automatic grabbing, which is characterized in that a bracket is arranged on an impact platform, a lifting platform is arranged on the bracket in a manner of moving up and down, a sliding chute is arranged at the bottom of the lifting platform, a sliding block capable of freely sliding is arranged in the sliding chute, and two symmetrical grippers are arranged and connected with the bottom side wall of the sliding block; the clamp driving connecting mechanism enables the sliding block to move under the action of the clamp driving motor, so that the two grippers are clamped or loosened; the lifting driving motor is arranged above the lifting platform and connected with the lifting platform through the lifting driving connecting mechanism, and the lifting driving motor enables the lifting platform to vertically move in the vertical direction of the support through the lifting driving connecting mechanism. According to the utility model, the package drop test efficiency and accuracy are improved, the gripping degree of the gripper can be adjusted according to the size of a package, the outer package is not damaged during gripping, and the test reliability is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of drop tests, and particularly relates to a sanitary ceramic packaging drop test device based on automatic grasping. Background Art

[0002] The sanitary ceramic packaging drop test is a device used to test the degree of influence of the sanitary ceramics after being packaged in cartons or other materials under the drop impact during actual transportation and loading and unloading, and to evaluate the impact resistance strength of the packaging during handling and the rationality of the packaging design. The result of the sanitary ceramic packaging drop test is an important indicator for detecting the safe transportation of the packaging. This test is mainly used to simulate the damage degree of the packaging when it drops during transportation. The tester places the tested packaging at a predetermined height of the test machine, allows it to fall freely, collide with the impact table, and then determines whether the packaging is qualified according to the degree of appearance deformation damage and the damage situation of the contents of the tested packaging. This can reduce the risk coefficient brought by the ceramics during transportation. The existing test devices require the tester to repeatedly place and adjust the spatial position of the packaging, and cannot automatically perform repeated drop tests, resulting in low work efficiency and the accuracy of experimental data. Therefore, developing an efficient packaging drop test device is of great significance for improving the test efficiency and accuracy of the packaging drop test.

[0003] The existing sanitary ceramic drop tester places the test sample on the test pallet and compresses it through the pressing adjustment frame above. During the test, the driving motor drives the test pallet to retract, so that the test sample drops from the test pallet to the bottom plate. However, in the above process, since the test pallet retracts, the drop angle of the goods cannot reach 90 degrees vertically, and it is easy for the test sample to touch the test pallet or the card slot opened on the test pallet during the drop process, causing a buffering effect on it, and thus the test result cannot be accurately obtained. Summary of the Utility Model

[0004] The utility model provides a sanitary ceramic drop test device based on automatic grasping, aiming to overcome the problems in the prior art that the existing sanitary ceramic drop test device cannot achieve multi-angle testing, has large test errors, low efficiency, requires manual placement of the packaging, and cannot achieve automatic repeated tests.

[0005] The technical solution of the utility model is as follows: A sanitary ceramic packaging drop test device based on automatic grasping, including a structural part and a circuit part. The structural part includes a lifting platform, a slider, an impact platform, a lifting drive connection mechanism, a chute, a gripper, a bracket, and a fixture drive connection device; the circuit part includes a fixture drive motor, a lifting drive motor, an AC power supply, a main switch button, a DC power supply, a main contactor, a lifting servo driver, a fixture servo driver, an emergency stop switch, a PLC, and a touch screen, where

[0006] The bracket is on the impact platform. The lifting platform is movably arranged on the bracket in the up-and-down direction. A clamp driving motor, a slider, a lifting driving motor, a lifting driving connection mechanism, a chute, a gripper and a clamp driving connection mechanism are arranged on the lifting platform. Among them, the chute is arranged at the bottom of the lifting platform, and a freely slidable slider is arranged in the chute. Two symmetrically arranged grippers are connected to the bottom side wall of the slider. The clamp driving connection mechanism moves the slider under the action of the clamp driving motor, so that the two grippers are clamped or loosened.

[0007] The lifting driving motor is arranged above the lifting platform and is connected to the lifting platform through a lifting driving connection mechanism. The lifting driving motor makes the lifting platform vertically move in the up-and-down direction of the bracket through the lifting driving connection mechanism.

[0008] Preferably, the AC power supply is connected to the DC power supply, the main contactor, the lifting servo driver and the clamp servo driver through the main switch button. The DC power supply is respectively connected to the emergency stop switch button, the touch screen and the PLC. The PLC and the touch screen are communicatively connected; both the lifting servo driver and the clamp servo driver are communicatively connected to the PLC; the lifting servo driver is connected to the lifting driving motor, and the clamp servo driver is connected to the clamp driving motor. Motor drive wires are arranged outside the clamp driving motor and the lifting driving motor. The plug at the other end of the motor drive wire of the driving motor is connected to the motor drive docking port and then connected to the servo driver.

[0009] Preferably, the clamp driving connection mechanism includes a main gear, bevel gears, a lead screw and a push rod. Bevel gears are arranged on both sides of the main gear. The main gear meshes with the two bevel gears. The lead screw is hinged to the bevel gear through a thread. The push rod is fixed on the lead screw and is used to drive the gripper to move parallel.

[0010] Preferably, the impact platform is a steel plate with a smooth surface.

[0011] Preferably, the bracket is a steel pipe with a threaded structure. The lifting platform is hinged to the bracket through a thread.

[0012] Preferably, the gripper is a robotic arm with controllable degrees of freedom.

[0013] Preferably, the chute is fixed to the lifting platform through a locking bolt. When it is necessary to adjust or replace the gripper, loosen the locking bolt, and slide the gripper out of the chute through the slider.

[0014] Preferably, both the lifting servo driver and the clamp servo driver are provided with a power supply docking wire, a communication wiring port and a motor drive docking port.

[0015] Preferably, the PLC is provided with a power supply connection wire and several communication and signal connection interfaces.

[0016] Preferably, the side wall of the touch screen is provided with a power supply connection wire and a communication connection port.

[0017] The beneficial effects of the present utility model at least include: the driving motor is controlled by the control terminal to control the gripper, thereby adjusting the spatial position of the package, enabling multi-directional drop tests of the package, adjusting the drop height and performing repeated drop tests, improving the efficiency and accuracy of the package drop test, adjusting the gripping degree of the gripper according to the size of the package, and ensuring that the outer package is not damaged during gripping, ensuring the reliability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of an automatic-gripping-based sanitary ceramic packaging drop test device according to a specific embodiment of the present utility model;

[0019] Figure 2 is a schematic circuit diagram of an automatic-gripping-based sanitary ceramic packaging drop test device according to a specific embodiment of the present utility model;

[0020] Figure 3 is Figure 2 an exploded view of the gripping part of an automatic-gripping-based sanitary ceramic packaging drop test device according to a specific embodiment of the present utility model;

[0021] Figure 4 is a schematic diagram of the gripper of the gripping part of an automatic-gripping-based sanitary ceramic packaging drop test device according to a specific embodiment of the present utility model when the gripper is released;

[0022] Figure 5 is Figure 4 a schematic diagram of the gripper of the gripping part of an automatic-gripping-based sanitary ceramic packaging drop test device according to a specific embodiment of the present utility model when the gripper is clamped. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0024] See Figure 1, A sanitary ceramic packaging drop test device based on automatic grasping, comprising: a clamp driving motor 1, a lifting platform 2, a slider 3, an impact platform 4, a lifting driving motor 5, a lifting driving connection mechanism 6, a chute 7, a gripper 8, a bracket 9, and a clamp driving connection mechanism 10. In the embodiment of the present application, the impact platform 4 is used to support the bracket 9, the lifting platform 2 is tightly connected to the bracket 9, the clamp driving motor 1 is arranged above the lifting platform 2 and is connected to the clamp driving connection mechanism 10, the other end of the clamp driving connection mechanism 10 is horizontally close to the lifting platform 2, the lifting driving motor 5 is arranged above the lifting platform 2 and is connected to the lifting driving connection mechanism 6, the other end of the lifting driving connection mechanism 6 is connected to the lifting platform 2 in the vertical direction, a chute 7 is provided at the bottom of the lifting platform 2, and the slider 3 slides through the inside of the chute 7, and the gripper 8 is arranged at the bottom of the slider 3 and is tightly connected to the slider 3.

[0025] There are two grippers 8, and the opposite movement of the grippers can be realized by driving the clamp driving motor 1. The lifting driving motor 5 can drive the lifting platform 2 to move vertically in the up and down direction along the bracket 9. When in use, place the goods on the impact platform 4, start the lifting driving motor 5, and traction the lifting driving connection mechanism 6 to drive the lifting platform 2 to move vertically in the up and down direction. When adjusted to the height level with the center of gravity of the goods, start the clamp driving motor 1, traction the clamp driving connection mechanism 10 and then drive the grippers to move horizontally towards each other. After the grippers clamp the goods, start the lifting driving motor 5 again, drive the lifting platform 2 to rise to the required drop height for the test, start the clamp driving connection mechanism 10 to traction the grippers to release, so that the goods fall on the impact platform 4 from the specified test height, and then check the damage situation of the goods to complete the experiment.

[0026] Among them, in the above technical solution, the impact platform 4 is used to simulate the ground in the actual scenario, and the impact platform 4 is a steel plate with a smooth, flat and burr-free surface; the gripper 8 is a robotic arm with controllable high degrees of freedom, having the functions of rotation and telescoping, and is scheduled by the control terminal; the control terminal includes a lifting servo driver, a clamp servo driver, a PLC 17 and a touch screen 18, and the functions of the control terminal are determined by the program edited by the test personnel; the control terminal controls the clamp driving motor 1 and the lifting driving motor 5 to drive the operation of the gripper 8; when the device is running, the control terminal will adjust the clamping degree of the gripper 8 according to the size of the goods. When the lifting driving motor 5 drives the lifting platform 2 to rise, the clamp driving motor 1 will drive the gripper 8 to tighten, so that the goods receive a greater clamping force during the rising process, which is to avoid the goods falling freely due to insufficient grasping force affected by gravity during the rising process, causing unnecessary factors to the drop test and resulting in incorrect test results.

[0027] See Figure 2, which is the schematic diagram of the circuit part of the utility model, includes: AC power supply 11, main switch button 12, DC power supply 13, main contactor 14, lifting servo driver 151 and fixture servo driver 152, emergency stop switch 16, PLC 17, and touch screen 18. The system circuit is connected to the power supply module, and the power supply module includes AC power supply 11 and DC power supply 13. The DC power supply 13 is respectively connected to the emergency stop switch 16, touch screen, and PLC 17. The side wall of the touch screen is provided with a power connection line and a communication connection port, and the PLC 17 is provided with a power connection line and multiple communication and signal connection ports. The touch screen 18 and PLC 17 are connected to the DC power supply 13 through the power connection line, and the touch screen 18 and PLC 17 are connected through a communication line; the AC power supply 11 is respectively connected to the DC power supply 13, main switch button 12, main contactor 14, lifting servo driver 151, and fixture servo driver 152. The main switch button 12 is used to control the switch of the entire system circuit. The lifting servo driver 151 and fixture servo driver 152 are provided with a power connection line, a communication connection port, and a motor drive connection port; the lifting servo driver 151 and fixture servo driver 152 are connected to the AC power supply 11 through the power connection line, and the communication connection ports of the lifting servo driver 151 and fixture servo driver 152 are connected to the communication connection port of the PLC 17 through a communication connection line; the outside of the fixture drive motor 1 and the lifting drive motor 5 is provided with a motor drive line, and the drive motor is connected to the lifting servo driver 151 and fixture servo driver 152 through the plug at the other end of the motor drive line cable to the motor drive connection port. The emergency stop switch 16 is connected to the main contactor 14 through a signal connection line. When an emergency stop of the test is required, pressing the emergency stop switch 16 makes the switch of the main contactor 14 disconnect, so that the lifting servo driver 151 and fixture servo driver 152 are powered off, and the operation of the fixture drive motor 1 and the lifting drive motor 5 can be quickly stopped.

[0028] The control terminal includes a lifting servo driver 151, a fixture servo driver 152, a PLC 17, and a touch screen 18. By setting the touch screen 18, it is convenient for users to perform real-time operations and settings on the device and record test data.

[0029] In a specific embodiment, the lifting platform 2 is hinged to the bracket 9 through a thread. During the test, the lifting drive motor 5 drives the lifting drive connection mechanism 6, and the driving force drives the lifting platform 2 to move vertically on the thread of the bracket 9, so that the lifting platform 2 can stay at the specified test height, improving the accuracy of the test.

[0030] The interior of the slide groove 7 is a threaded structure, and the clamp drive motor 1 is connected to the lifting platform 2 through a threaded hinge. During the test, the clamp drive motor 1 drives the clamp drive connection mechanism 10, and the driving force causes the thread inside the slide groove 7 to move. It should be noted that the movement of the thread inside the slide groove 7 will cause the slider 3 to move toward each other, thereby clamping or loosening the gripper 8, so that the gripper 8 can firmly clamp the cargo and ensure the stability of the test.

[0031] The slide groove 7 and the lifting platform 2 are fixed by locking bolts. When the gripper 8 needs to be adjusted or replaced, the locking bolts can be loosened and the gripper 8 can be slid out of the slide groove 7 using the slider 3.

[0032] An elastic pad can be added to the contact surface between the gripper 8 and the package. During the test, the size and shape of the elastic pad can be changed according to the size, shape and weight of the goods, which can effectively avoid damage to the goods caused by compression when the gripper 8 clamps the goods.

[0033] See also Figures 3 - 5 The clamp driving connection mechanism 10 includes a main gear 22, a bevel gear 19, a screw 20 and a push rod 21. The rotation of the main gear 22 drives the two bevel gears 19 to rotate. The screw 20 and the bevel gear 19 are hinged by threads. The push rod 21 is fixed on the screw to drive the gripper 8 to move parallel.

[0034] In a specific embodiment, when it is necessary to test the surface drop test of the goods, the tester places the goods on the impact platform 4, and the lifting drive motor 5 drives the lifting platform 2 to the center of gravity of the goods. After the clamp drive motor 1 drives the gripper 8 to clamp the goods, the lifting drive motor 5 will lift the lifting platform 2 to a specified height, and then the control terminal releases the gripper 8 to make the specified surface fall on the impact platform 4. It should be noted that due to the center of gravity offset of the goods during free fall, the device of the utility model ensures that the maximum angle between the falling surface and the horizontal plane does not exceed 2°, so that the test result is more accurate; when it is necessary to test the edge or corner drop test of the goods, the tester places the specified edge or corner of the goods on the impact platform 4 with the specified edge or corner facing downward, and the lifting drive motor 5 drives the lifting platform 2 to the center of gravity of the goods, and waits. After the clamp drive motor 1 drives the gripper 8 to clamp the cargo, the lifting drive motor 5 will lift the lifting platform 2 to the specified height, and then the control terminal releases the gripper 8 to make the specified edge or corner fall onto the impact platform 4. Since the center of gravity of the cargo is offset when it falls freely, the device of the utility model ensures that the error of the angle between the surface where the falling edge or corner is located and the surface of the impact platform 4 is no more than ±5°, so that the gravity line of the test sample passes through the fallen edge or corner. When the drop test needs to be repeated, according to the program set by the control terminal, the gripper 8 will automatically pick up and clamp the cargo. After adjusting to the drop height and angle required for the test, the clamp drive motor 1 drives to release the gripper 8 to make the cargo fall freely to the impact platform 4. After repeated tests for the specified number of times, the tester stops the operation of the device and the test ends.

[0035] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in terms of form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A sanitary ceramic packaging drop test device based on automatic grasping, characterized in that: It includes a structural part and a circuit part. The structural part includes a lifting platform, a slider, an impact platform, a lifting drive connection mechanism, a slide, a gripper, a bracket and a fixture drive connection device; the circuit part includes a fixture drive motor, a lifting drive motor, an AC power supply, a main switch button, a DC power supply, a main contactor, a lifting servo driver, a fixture servo driver, an emergency stop switch, a PLC and a touch screen. The bracket is on the impact platform, and the lifting platform is arranged on the bracket so as to be movable up and down. A clamp driving motor, a slider, a lifting driving motor, a lifting driving connection mechanism, a slide groove, a gripper and a clamp driving connection mechanism are arranged on the lifting platform, wherein the slide groove is arranged at the bottom of the lifting platform, a slider that can slide freely is arranged in the slide groove, two grippers are arranged symmetrically and connected to the bottom side wall of the slider, and the clamp driving connection mechanism moves the slider under the action of the clamp driving motor, so that the two grippers are clamped or released; The lifting drive motor is arranged above the lifting platform and is connected to the lifting platform through a lifting drive connection mechanism. The lifting drive motor enables the lifting platform to move vertically in the upper and lower directions of the bracket through the lifting drive connection mechanism.

2. The sanitary ceramic packaging drop test device based on automatic grasping according to claim 1 is characterized in that: The AC power supply is connected to the DC power supply, the main contactor, the lifting servo drive and the clamp servo drive via the main switch button; the DC power supply is respectively connected to the emergency stop switch button, the touch screen and the PLC; the PLC is communicatively connected to the touch screen; the lifting servo drive and the clamp servo drive are both communicatively connected to the PLC; the lifting servo drive is connected to the lifting drive motor, and the clamp servo drive is connected to the clamp drive motor; motor drive lines are provided on the outside of the clamp drive motor and the lifting drive motor, and the drive motor is connected to the servo drive through the plug at the other end of the motor drive line cable and the motor drive docking interface.

3. The sanitary ceramic packaging drop test device based on automatic grasping according to claim 1 is characterized in that: The clamp driving connection mechanism includes a main gear, a bevel gear, a screw and a push rod. Bevel gears are respectively arranged on both sides of the main gear. The main gear is meshed with the two bevel gears. The screw and the bevel gear are hinged by threads. The push rod is fixed on the screw to drive the gripper to move in parallel.

4. The sanitary ceramic packaging drop test device based on automatic grasping according to claim 1 is characterized in that: The impact platform is a steel plate with a smooth surface.

5. The sanitary ceramic packaging drop test device based on automatic grasping according to claim 1 is characterized in that: The bracket is a steel pipe with a threaded structure, and the lifting platform is connected to the bracket by a threaded hinge.

6. The sanitary ceramic packaging drop test device based on automatic grasping according to claim 1 is characterized in that: The gripper is a mechanical arm with controllable degrees of freedom.

7. The sanitary ceramic packaging drop test device based on automatic grasping according to claim 1 is characterized in that: The slide groove and the lifting platform are fixed by locking bolts. When the gripper needs to be adjusted or replaced, the locking bolts are loosened and the gripper is slid out of the slide groove through the slider.

8. The sanitary ceramic packaging drop test device based on automatic grasping according to claim 2 is characterized in that: The lifting servo driver and the fixture servo driver are both provided with a power connection line, a communication connection port and a motor drive connection port.

9. The sanitary ceramic packaging drop test device based on automatic grasping according to claim 2 is characterized in that: The PLC is provided with a power connection line and a plurality of communication and signal connection interfaces.

10. The sanitary ceramic packaging drop test device based on automatic grasping according to claim 2, characterized in that: The side wall of the touch screen is provided with a power connection line and a communication connection port.

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