An accelerated aging test device and control method thereof

Abstract

The present invention relates to the technical field of material testing equipment, and in particular to an accelerated aging test device, which includes a test box, a sample holder, a grabbing unit, and a control unit. The test box has a first opening and a first box door for opening and closing the first opening. The sample holder is arranged in the test box for supporting the sample. The grabbing unit is arranged on the outside of the test box. The grabbing unit includes a gripper. The control unit is electrically connected to the test box and the gripper, and is used to obtain the position information of the sample to be evaluated, and control the gripper to take out the sample to be evaluated according to the position information, and control the first box door to open the first opening when the distance between the gripper and the first box door is less than a first predetermined distance. Based on the above structure, the accelerated aging test device has an automatic grabbing function, and the sample to be evaluated can be automatically taken out by the gripper, so there is no need to frequently start and stop the test device, which prolongs the service life of the device, and the efficiency of the automatic removal of the gripper is high, which greatly shortens the test cycle.

Description

Technical Field

[0001] The present invention relates to the technical field of material testing equipment, and in particular to an accelerated aging test device. The present invention also relates to a control method for the accelerated aging test device. Background Art

[0002] The accelerated aging test device is used to test the accelerated aging characteristics of painted surfaces, fabrics, plastic films and other materials. Its principle is to simulate a light source close to daylight under controllable temperature and humidity, and expose the sample to the light source to observe the changes produced.

[0003] Since the accelerated aging test is a long-term test, the test cycle of each sample is different. Each sample must be taken out of the test box separately during or after the test to evaluate its changes. The existing accelerated aging test device does not have an automatic grabbing function, and the samples to be evaluated need to be taken out manually. When taking out samples, the test personnel need to start and stop the test device frequently, which seriously reduces the service life of the device. In addition, the efficiency of manual removal is low, which prolongs the test cycle. Summary of the invention

[0004] The purpose of the present invention is to provide an accelerated aging test device which can automatically grab samples to be evaluated and has high taking-out efficiency.

[0005] In order to achieve the above object, the present invention provides an accelerated aging test device, which comprises:

[0006] A test box having a first opening and a first door for opening and closing the first opening;

[0007] A sample holder, disposed in the test box, for supporting the sample;

[0008] A grabbing unit is arranged outside the test box, and the grabbing unit includes a grabber;

[0009] A control unit is electrically connected to the test box and the gripping unit, and is used to obtain position information of the sample to be evaluated, and control the gripper to take out the sample to be evaluated according to the position information, and control the first box door to open the first opening when the distance between the gripper and the first box door is less than a first predetermined distance.

[0010] In some embodiments of the present application, the gripping unit further includes a first moving mechanism, a second moving mechanism provided on the first moving mechanism, and a third moving mechanism provided on the second moving mechanism, the gripper is provided on the third moving mechanism, the first moving mechanism can drive the gripper to move along the Y-axis direction and pass through the first opening, the second moving mechanism is used to drive the gripper to move along the X-axis direction, and the third moving mechanism is used to drive the gripper to move along the Z-axis direction;

[0011] The control unit includes a central processing unit and a sensor, the central processing unit is electrically connected to the sensor, the central processing unit is electrically connected to the first moving mechanism, the second moving mechanism and the third moving mechanism, and the sensor is arranged in the test box and is used to obtain the first position information of the sample to be evaluated.

[0012] In some embodiments of the present application, the third moving mechanism is provided with a first rotating assembly that can move therewith, the first rotating assembly includes a first driving device and a first rotating shaft extending along the Z-axis direction, the gripper is provided on the first rotating shaft and can rotate therewith, the central processing unit is electrically connected to the first driving device, and controls the first driving device to drive the first rotating shaft to rotate;

[0013] The control unit further comprises an identifier electrically connected to the central processing unit, wherein the identifier is arranged on the gripper and is used to obtain second position information of the sample to be evaluated.

[0014] In some embodiments of the present application, a second rotating component is connected to the first rotating shaft and can rotate therewith, the second rotating component includes a second driving device and a second rotating shaft, the second rotating shaft is perpendicular to the first rotating shaft, the gripper is connected to the second rotating shaft and can rotate therewith, the central processing unit is electrically connected to the second driving device, and controls the second driving device to drive the second rotating shaft to rotate.

[0015] In some embodiments of the present application, an evaluation box and an evaluation device disposed in the evaluation box are further included, the first opening connects the test box and the evaluation box, the first moving mechanism includes a first guide rail and a first moving platform, the first guide rail passes through the evaluation box and extends along the Y-axis direction, the second moving mechanism is disposed on the first moving platform, the central processing unit is electrically connected to the first moving platform, and controls the first moving platform to move along the first guide rail to pass through the first opening.

[0016] In some embodiments of the present application, the evaluation device includes an evaluation device body, a placement seat and a clamping arm on the evaluation device body, and a clamping plate arranged at one end of the clamping arm. The central processing unit is electrically connected to the clamping arm, and can control the clamping plate to approach or move away from the evaluation device body through the clamping arm. A placement position for placing the sample to be evaluated is formed between the evaluation device body, the placement seat and the clamping plate.

[0017] In some embodiments of the present application, the evaluation box has a second opening and a second box door that can open and close the second opening on the other side opposite to the first opening, and the central processor controls the first mobile platform to pass through the second opening along the first guide rail, and at the same time controls the second box door to open the second opening when the distance between the gripper and the second box door is less than a second predetermined distance.

[0018] In some embodiments of the present application, a sample tray is further included. The sample tray is disposed on the outer side of the evaluation box facing away from the test box and is disposed below the second opening.

[0019] Another object of the present invention is to provide a control method for an accelerated aging test device, which comprises the following steps:

[0020] Obtaining first position information of the sample to be evaluated;

[0021] Calculating a moving path according to the first position information, controlling the gripper to pass through the first opening along the moving path and reach a first grabbing position, during which, when the distance between the gripper and the first opening is less than a first predetermined distance, controlling the first door to open the first opening;

[0022] Controlling the gripper to grab the sample to be evaluated;

[0023] The gripper is controlled to pass through the first opening and leave the test box.

[0024] In some embodiments of the present application, the following steps are also included:

[0025] Controlling the gripper to place the sample to be evaluated on a placement position;

[0026] Controlling the clamp to clamp the sample to be evaluated;

[0027] The color difference of the sample to be evaluated is evaluated by the evaluation device body.

[0028] The present invention provides an accelerated aging test device, which has the following beneficial effects compared with the prior art:

[0029] The accelerated aging test device provided by the present invention includes a test box, a sample holder, a grabbing unit and a control unit. The test box has a first opening and a first box door for opening and closing the first opening. The sample holder is arranged in the test box for supporting the sample. The grabbing unit is arranged on the outside of the test box. The grabbing unit includes a gripper. The control unit is electrically connected to the test box and the gripper unit, and is used to obtain the position information of the sample to be evaluated, and control the gripper to take out the sample to be evaluated according to the position information, and control the first box door to open the first opening when the distance between the gripper and the first box door is less than the first predetermined distance. Based on the above structure, the accelerated aging test device has an automatic grabbing function, and the sample to be evaluated can be automatically taken out by the gripper, so there is no need to frequently start and stop the test device, which prolongs the service life of the device, and the efficiency of the automatic removal of the gripper is high, which greatly shortens the test cycle. In addition, the control unit can control the first box door to open the first opening according to the movement of the gripper, and there will be no collision between the gripper and the test box, so that the process of sample removal is smoother and will not affect the test results.

[0030] The invention also provides a control method for an accelerated aging test device, which has high efficiency and is easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the accelerated aging test device according to an embodiment of the present invention;

[0032] Figure 2 It is a schematic diagram of the overall structure of a grabbing unit according to an embodiment of the present invention;

[0033] Figure 3 A schematic top view of an evaluation box and an evaluation device according to an embodiment of the present invention;

[0034] Figure 4 The figure is a flow chart of a control method of an accelerated aging test device according to an embodiment of the present invention.

[0035] In the figure: 1. test box; 11. first opening; 12. first box door; 2. sample seat; 3. control unit; 31. identifier; 4. grabbing unit; 41. gripper; 42. first moving mechanism; 421. first guide rail; 422. first moving platform; 43. second moving mechanism; 44. third moving mechanism; 45. first rotating assembly; 451. first rotating axis; 46. second rotating assembly; 461. second rotating axis; 5. evaluation box; 51. second opening; 52. second box door; 6. evaluation device; 61. evaluation device body; 62. placement seat; 63. clamping arm; 64. clamping plate; 7. sample; 8. sample tray. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0037] It should be understood that, in the description of the present application, the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, that is, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, unless otherwise specified, "multiple" means two or more.

[0038] It should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] like Figure 1As shown, an embodiment of the present invention provides an accelerated aging test device, which includes a test box 1, a sample holder 2, a grab unit 4 and a control unit 3. The test box 1 has a first opening 11 and a first box door 12 for opening and closing the first opening 11. The sample holder 2 is arranged in the test box 1 for supporting the sample 7. The grab unit 4 is arranged outside the test box 1. The grab unit 4 includes a gripper 41. The control unit 3 is electrically connected to the test box 1 and the gripper 4, and is used to obtain the position information of the sample 7 to be evaluated, and control the gripper 41 to take out the sample 7 to be evaluated according to the position information, and control the first box door 12 to open the first opening 11 when the distance between the gripper 41 and the first box door 12 is less than a first predetermined distance. Specifically, the control unit 3 includes a central processing unit and a sensor, which is arranged in the test box 1. The sensor can be arranged on the sample holder 2 or on the inner wall of the test box 1, as long as the position information of each sample 7 can be obtained. The central processor can record the test cycle of each sample. When the sample 7 reaches the stage to be evaluated, the central processor obtains the first position information of the sample 7 to be evaluated through the sensor, calculates the moving path, and then controls the gripper 41 to reach the gripping position and takes out the sample 7 to be evaluated. It should be understood that when the distance between the gripper 41 and the first box door 12 is greater than the first predetermined distance, it can also be configured that the control unit 3 controls the first box door 12 to close the first opening 11 to maintain a closed test environment.

[0040] Based on the above structure, the accelerated aging test device has an automatic grabbing function, and the sample 7 to be evaluated can be automatically taken out by the gripper 41, so there is no need to frequently start and stop the test device, which prolongs the service life of the device, and the efficiency of automatic removal by the gripper 41 is high, which greatly shortens the test cycle. In addition, the control unit 3 can control the first box door 12 to open the first opening 11 according to the movement of the gripper 41, and there will be no collision between the gripper 41 and the test box 1, so that the process of taking out the sample 7 is smoother and will not affect the test results.

[0041] Considering that the sample rack 7 generally has three layers, namely, upper, middle and lower layers, and the sample rack 7 rotates around its central axis, the gripper 41 needs to have multiple degrees of freedom to grasp different layers. Figure 1 and Figure 2As shown, in this embodiment, the gripping unit 4 further includes a first moving mechanism 42, a second moving mechanism 43 disposed on the first moving mechanism 42, and a third moving mechanism 44 disposed on the second moving mechanism 43. The gripper 41 is disposed on the third moving mechanism 44. The first moving mechanism 42 can drive the gripper 41 to move along the Y-axis direction and pass through the first opening 11. The second moving mechanism 43 is used to drive the gripper 41 to move along the X-axis direction. The third moving mechanism 44 is used to drive the gripper 41 to move along the Z-axis direction. The central processing unit is electrically connected to the first moving mechanism 42, the second moving mechanism 43, and the third moving mechanism 44, and controls the first moving mechanism 42, the second moving mechanism 43, and the third moving mechanism 44 to move according to the calculated moving path, so that the gripper 41 reaches the first gripping position. Based on this, the gripper 41 can move along the three orthogonal directions of X, Y, and Z axes under the drive of the first moving mechanism 42, the second moving mechanism 43, and the third moving mechanism 44, so as to grab the samples 7 to be evaluated at different positions on different shelves, with high flexibility, meeting the grabbing requirements of the samples 7 on the sample 7 rack. It should be emphasized that the first moving mechanism 42, the second moving mechanism 43, and the third moving mechanism 44 can adopt the moving mode of the guide rail slider, the screw rod sliding mode, or the worm gear mode, as long as the gripper 41 can be driven to move along the three orthogonal directions of X, Y, and Z axes.

[0042] Since the sample 7 rack rotates during the entire test process, when the gripper 41 reaches the first grasping position, the instantaneous position information of the sample 7 to be evaluated may deviate from the first position information, that is, the sample 7 to be evaluated has deviated from the position originally obtained by the sensor. Therefore, secondary positioning is required to accurately grasp the sample 7 to be evaluated. Based on the above considerations, Figure 1 and Figure 2As shown, in this embodiment, the control unit 3 also includes an identifier 31 electrically connected to the central processor, and the identifier 31 is arranged on the gripper 41, and is used to obtain the second position information of the sample to be evaluated 7. After the central processor controls the gripper 41 to reach the first grasping position, it receives the second position information. At this time, the central processor can determine the second grasping position in two ways: one is to directly discard the first grasping position information and determine the second grasping position through the second position information; the other is to determine the distance between the first position information and the second position information. When the distance between the two is less than a preset value, the second grasping position is equal to the first grasping position. When the distance between the two is greater than the preset value, the second grasping position is determined by the second position information. The third moving mechanism 44 is provided with a first rotating assembly 45 that can move therewith, and the first rotating assembly 45 includes a first driving device and a first rotating shaft 451 extending along the Z-axis direction. The gripper 41 is provided on the first rotating shaft 451 and can rotate therewith. The central processing unit is electrically connected to the first driving device, and the central processing unit calculates the moving path again according to the second grasping position, and controls the first driving device to drive the first rotating shaft 451 to rotate, thereby driving the gripper 41 to reach the second grasping position and grasp the sample 7 to be evaluated. In this way, the central processing unit can locate the position of the sample 7 to be evaluated twice through the sensor and the identifier 31, so that the gripper 41 can grasp more accurately and it is not easy to grasp the sample 7 by mistake.

[0043] Alternatively, if Figure 1 and Figure 2 As shown, in this embodiment, the first rotating shaft 451 is connected with a second rotating assembly 46 that can rotate therewith, and the second rotating assembly 46 includes a second driving device and a second rotating shaft 461, the second rotating shaft 461 is perpendicular to the first rotating shaft 451, the gripper 41 is connected to the second rotating shaft 461 and can rotate therewith, and the central processing unit is electrically connected to the second driving device, and controls the second driving device to drive the second rotating shaft 461 to rotate according to the moving path calculated from the second grasping position. Based on this, the second rotating shaft 461 can provide more degrees of freedom for the gripper 41 on the basis of the first rotating shaft 451, so that the gripper 41 moves to the second grasping position more accurately and with higher flexibility. Of course, the central processing unit of the present invention can also drive the gripper 41 to the second grasping position through the first moving mechanism 42, the second moving mechanism 43, and the third moving mechanism 44, but because the first rotating assembly 45 and the second rotating assembly 46 are smaller in size, both are located on the third moving mechanism 44, and the structure is more compact, so the way to make the gripper 41 reach the second grasping position through the first rotating assembly 45 and the second rotating assembly 46 is faster.

[0044] Considering that it is inconvenient to only take out the sample 7 to be evaluated or manually put it into the evaluation equipment for evaluation, Figure 1 and Figure 3As shown, in this embodiment, the accelerated aging test device also includes an evaluation box 5 and an evaluation device 6 arranged in the evaluation box 5. The first opening 11 connects the test box 1 and the evaluation box 5. The first moving mechanism 42 includes a first guide rail 421 and a first moving platform 422. The first guide rail 421 is arranged in the evaluation box 5 and extends along the Y-axis direction. Specifically, one end of the first guide rail 421 penetrates into the test box 1, and the other end thereof passes through the evaluation box 5 and extends to the external environment. The second moving mechanism 43 is arranged on the first moving platform 422. The central processing unit is electrically connected to the first moving platform 422 and controls the first moving platform 422 to move along the first guide rail 421 to pass through the first opening 11. In this way, the central processing unit can control the gripper 41 to take out the sample 7 to be evaluated from the test box 1 and place it in the evaluation box 5. The integrated setting of the test box 1 and the evaluation box 5 enables the test and evaluation process to be fully automated. The test personnel do not need to monitor the test box 1 all day, which solves the difficulty of sampling at night, shortens the test cycle, and improves the test efficiency.

[0045] Alternatively, if Figure 1 and Figure 2 As shown, in this embodiment, the accelerated aging test device also includes a third driving device, which is electrically connected to the central processing unit and is used to drive the sample holder to rotate. After the gripper 41 takes out the sample 7 to be evaluated from the sample holder, the central processing unit can control the third driving device to stop the sample holder 2 from rotating until the gripper 41 puts the evaluated sample 7 back from the evaluation device 6 to the sample holder 2, and then rotates the sample holder 2 again. Of course, it can also be set that the central processing unit controls the sample holder 2 to rotate to the original position of the sample 7 to align with the first opening 11 when the gripper 41 puts the evaluated sample 7, as long as the evaluated sample 7 can be placed back on the sample holder 2. In this way, the evaluated sample 7 can be returned to the sample holder 2 to continue the test, thereby improving the degree of automation of the accelerated aging test device.

[0046] Alternatively, if Figure 1 and Figure 2 As shown, in this embodiment, a timer is provided at the position of the sample holder 2 for placing the sample 7, and the timer is connected to the central processor for calculating the time the sample 7 is placed on the sample holder 2. Based on this, the central processor can monitor the test time of the sample 7, and can be set to control the gripper to take out the sample 7 to the evaluation device 6 for evaluation multiple times at fixed time intervals.

[0047] Alternatively, if Figure 1 and Figure 3As shown, in this embodiment, the evaluation device 6 includes an evaluation device body 61, a placement seat 62 and a clamp arm 63 on the evaluation device body 61, and a clamp plate 64 provided at one end of the clamp arm 63. The central processing unit is electrically connected to the clamp arm 63, and can control the clamp plate 64 to approach or move away from the evaluation device body 61 through the clamp arm 63. A placement position for placing the sample 7 to be evaluated is formed between the evaluation device body 61, the placement seat 62 and the clamp plate 64. Based on this, after the central processing unit controls the gripper 41 to place the sample 7 to be evaluated on the placement position, the central processing unit can control the clamp plate 64 to clamp the sample 7 to be evaluated, so that the placement of the sample 7 to be evaluated is more stable, and can be close to the evaluation device body 61, thereby improving the accuracy of evaluating color difference.

[0048] Of course, the present invention is not limited to the evaluation method using the above-mentioned evaluation device 6. It can also be that a gray card, a photographing module and a sample 7 mounting seat are provided in the evaluation box 5, and the gray card is provided on one side of the sample 7 mounting seat. The central processing unit is electrically connected to the photographing module. After the central processing unit controls the gripper 41 to place the sample 7 to be evaluated on the sample 7 mounting seat, it controls the photographing module to take pictures of the gray card and the sample 7 to be evaluated to compare the color difference.

[0049] Alternatively, if Figure 1 and Figure 3 As shown, in this embodiment, the other side of the evaluation box 5 opposite to the first opening 11 has a second opening 51 and a second box door 52 that can open and close the second opening 51. The central processing unit controls the first mobile platform 422 to pass through the second opening 51 along the first guide rail 421, and at the same time controls the second box door 52 to open the second opening 51 when the distance between the gripper 41 and the second box door 52 is less than the second predetermined distance. Preferably, the first opening 11 and the second opening 51 are not opened at the same time, that is, the length of the guide rail located in the evaluation box 5 is greater than the sum of the first predetermined distance and the second predetermined distance. When the distance between the gripper 41 and the first box door 12 is greater than the first predetermined distance, the central processing unit controls the first box door 12 to close the first opening 11. At this time, the distance between the gripper 41 and the second box door 52 is still greater than the second predetermined distance, and the second box door 52 keeps the second opening 51 closed. Based on this, the central processing unit can control the gripper 41 to take out the sample 7 that has been evaluated or tested to the external environment through the second opening 51, without manually taking the sample 7 out of the evaluation box 5, and the operation is more automated. Of course, the central processing unit can also control the gripper 41 to return the sample 7 that has been evaluated but still needs to be tested to the sample 7 rack through the first opening 11. In addition, since the first opening 11 and the second opening 51 are opened successively instead of simultaneously, during the process of taking out the sample 7, the irradiation light of the light source will not pass through the first opening 11 and the second opening 51 to the external environment, ensuring the relative closure of the test environment, thereby making the test results more accurate.

[0050] Alternatively, if Figure 3 As shown, in this embodiment, the accelerated aging test device further includes a sample tray 8, which is disposed on the outer side of the evaluation box 5 facing away from the test box 1 and below the second opening 51. In this way, the central processing unit can place the evaluated or tested sample 7 on the sample tray 8 through the second opening 51 by the gripper 41, without the need for manual removal for storage, thereby realizing automation of the entire test process with a high degree of automation.

[0051] Alternatively, if Figure 1 and Figure 2 As shown, in this embodiment, the central processing unit is electrically connected to the evaluation device body 61, and controls the gripper 41 to take out the sample 7 to the sample tray 8 when the color difference change value of the sample 7 evaluated by the evaluation device body 61 reaches a predetermined value. Specifically, the evaluation device body 61 can obtain the color difference change value by comparing the original color of the sample 7 with the current color after a period of test time, which can be expressed in numerical values ​​or in pre-defined levels. When the change value reaches a predetermined value or a predetermined level, it means that the sample 7 has failed. At this time, the central processing unit controls the gripper 41 to take out the sample 7 to the sample tray 8, and the timer records the test time corresponding to the sample 7, so that the accelerated aging test device can automatically record the failure time of the sample 7 and automatically take out the failed sample 7 to the sample tray 8, without the need to manually observe the failure time of the sample 7, which greatly improves the accuracy of the test.

[0052] like Figure 4 As shown, the embodiment of the present invention also provides a control method for an accelerated aging test device, which includes the following steps:

[0053] S1, obtaining first position information of the sample to be evaluated 7;

[0054] S2, calculating a moving path according to the first position information, controlling the gripper 41 to pass through the first opening 11 along the moving path and reach the first grabbing position, during which, when the distance between the gripper 41 and the first opening 11 is less than a first predetermined distance, controlling the first door 12 to open the first opening 11;

[0055] S3, controlling the gripper 41 to grab the sample 7 to be evaluated;

[0056] S4 , controlling the gripper 41 to pass through the first opening 11 and leave the test box 1 .

[0057] Alternatively, if Figure 2 As shown, in this embodiment, between S2 and S3, the following steps are also included:

[0058] S21, obtaining second position information of the sample to be evaluated 7;

[0059] S22, comparing the first position information and the second position information, when the distance between the two is less than a preset value, keeping the gripper 41 at the first gripping position, and when the distance between the two is greater than the preset value, recalculating the moving path according to the second position information, and controlling the gripper 41 to reach the second gripping position.

[0060] Optionally, in this embodiment, in step S4 , when the distance between the gripper 41 and the first opening 11 is greater than a first predetermined distance, the first door 12 is controlled to close the first opening 11 .

[0061] Alternatively, if Figure 4 As shown, in this embodiment, the following steps are also included:

[0062] S5, controlling the gripper 41 to place the sample 7 to be evaluated on the placement position;

[0063] S6, controlling the clamping plate 64 to clamp the sample 7 to be evaluated;

[0064] S7 . Evaluate the color difference of the sample 7 to be evaluated by the evaluation device body 61 .

[0065] Optionally, in this embodiment, the following steps are also included:

[0066] S8, when the color difference change value of the sample 7 to be evaluated is greater than a predetermined value, the gripper 41 is controlled to place the sample 7 on the sample tray 8 through the second opening 51. During this process, when the distance between the gripper 41 and the second opening 51 is less than a second predetermined distance, the second box door 52 is controlled to open the first opening 51;

[0067] When the color difference change value of the sample 7 to be evaluated is less than a predetermined value, the gripper 41 is controlled to place the sample 7 on the sample holder 2 through the first opening 11. During this process, when the distance between the gripper 41 and the first opening 11 is less than a first predetermined distance, the first box door 12 is controlled to open the first opening 11.

[0068] In summary, the embodiment of the present invention provides an accelerated aging test device, which is mainly composed of a test box 1, a sample holder 2, a grabbing unit 4 and a control unit 3. The test box 1 has a first opening 11 and a first box door 12 for opening and closing the first opening 11. The sample holder 2 is arranged in the test box 1 for supporting the sample 7. The grabbing unit 4 is arranged outside the test box 1. The grabbing unit 4 includes a gripper 41. The control unit 3 is electrically connected to the test box 1 and the grabbing unit 4, and is used to obtain the position information of the sample 7 to be evaluated, and control the gripper 41 to take out the sample 7 to be evaluated according to the position information, and control the first box door 12 to open the first opening 11 when the distance between the gripper 41 and the first box door 12 is less than the first predetermined distance. Compared with the prior art, the accelerated aging test device has the advantages of being able to automatically grab the sample 7 to be evaluated and having a high removal efficiency.

[0069] The embodiment of the present invention also provides a control method for an accelerated aging test device. Compared with the prior art, the control method for the accelerated aging test device has the advantages of high efficiency and easy implementation.

[0070] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An accelerated aging test device, characterized in that: include: A test box having a first opening and a first door for opening and closing the first opening; A sample holder, disposed in the test box, for supporting the sample; A grabbing unit is arranged outside the test box, and the grabbing unit includes a grabber; a control unit, the control unit being electrically connected to the test box and the grabbing unit, and configured to obtain position information of the sample to be evaluated, and to control the grabber to take out the sample to be evaluated according to the position information, and to control the first box door to open the first opening when the distance between the grabber and the first box door is less than a first predetermined distance; The gripping unit further comprises a first moving mechanism, a second moving mechanism arranged on the first moving mechanism, and a third moving mechanism arranged on the second moving mechanism, the gripper is arranged on the third moving mechanism, the first moving mechanism can drive the gripper to move along the Y-axis direction and pass through the first opening, the second moving mechanism is used to drive the gripper to move along the X-axis direction, and the third moving mechanism is used to drive the gripper to move along the Z-axis direction; The control unit includes a central processing unit and a sensor, the central processing unit is electrically connected to the sensor, the central processing unit is electrically connected to the first moving mechanism, the second moving mechanism and the third moving mechanism, and the sensor is arranged in the test box and is used to obtain the first position information of the sample to be evaluated; The accelerated aging test device also includes a third driving device, which is electrically connected to the central processing unit and is used to drive the sample holder to rotate. When the gripper takes out the sample to be evaluated from the sample holder, the central processing unit can control the third driving device to stop the sample holder from rotating until the gripper puts the evaluated sample back from the evaluation device to the sample holder, and then rotates the sample holder again.

2. The accelerated aging test device according to claim 1, characterized in that: The third moving mechanism is provided with a first rotating assembly that can move therewith, the first rotating assembly includes a first driving device and a first rotating shaft extending along the Z-axis direction, the gripper is provided on the first rotating shaft and can rotate therewith, the central processing unit is electrically connected to the first driving device, and controls the first driving device to drive the first rotating shaft to rotate; The control unit further comprises an identifier electrically connected to the central processing unit, wherein the identifier is arranged on the gripper and is used to obtain second position information of the sample to be evaluated.

3. The accelerated aging test device according to claim 2, characterized in that: The first rotating shaft is connected to a second rotating component that can rotate therewith. The second rotating component includes a second driving device and a second rotating shaft. The second rotating shaft is perpendicular to the first rotating shaft. The gripper is connected to the second rotating shaft and can rotate therewith. The central processing unit is electrically connected to the second driving device and controls the second driving device to drive the second rotating shaft to rotate.

4. The accelerated aging test device according to claim 1, characterized in that: It also includes an evaluation box and an evaluation device arranged in the evaluation box, the first opening connects the test box and the evaluation box, the first moving mechanism includes a first guide rail and a first moving platform, the first guide rail passes through the evaluation box and extends along the Y-axis direction, the second moving mechanism is arranged on the first moving platform, the central processing unit is electrically connected to the first moving platform, and controls the first moving platform to move along the first guide rail to pass through the first opening.

5. The accelerated aging test device according to claim 4, characterized in that: The evaluation device includes an evaluation device body, a placement seat and a clamping arm on the evaluation device body, and a clamping plate arranged at one end of the clamping arm. The central processing unit is electrically connected to the clamping arm and can control the clamping plate to approach or move away from the evaluation device body through the clamping arm. A placement position for placing the sample to be evaluated is formed between the evaluation device body, the placement seat and the clamping plate.

6. The accelerated aging test device according to claim 4, characterized in that: The evaluation box has a second opening and a second box door that can open and close the second opening on the other side of the evaluation box opposite to the first opening. The central processor controls the first mobile platform to pass through the second opening along the first guide rail, and at the same time controls the second box door to open the second opening when the distance between the gripper and the second box door is less than a second predetermined distance.

7. The accelerated aging test device according to claim 6, characterized in that: It also includes a sample tray, which is arranged on the outer side of the evaluation box facing away from the test box and below the second opening.

8. A control method for an accelerated aging test device, using the accelerated aging test device according to any one of claims 1 to 7, characterized in that: The steps include: Obtaining first position information of the sample to be evaluated; Calculating a moving path according to the first position information, controlling the gripper to pass through the first opening along the moving path and reach a first grabbing position, during which, when the distance between the gripper and the first opening is less than a first predetermined distance, controlling the first door to open the first opening; Controlling the gripper to grab the sample to be evaluated; The gripper is controlled to pass through the first opening and leave the test box.

9. The control method of the accelerated aging test device according to claim 8, characterized in that: The following steps are also included: Controlling the gripper to place the sample to be evaluated on a placement position; Controlling the clamp to clamp the sample to be evaluated; The color difference of the sample to be evaluated is evaluated by the evaluation device body.

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