Test equipment

Abstract

The utility model discloses test equipment, which comprises a test device, a loading and unloading device and a transfer device, wherein the test device is provided with a test surface for testing; the feeding and discharging device is provided with a fixing assembly used for fixing a material disc, the material disc is provided with a placing face used for placing crystal grains, and the placing face and the testing face are arranged in a preset angle alpha around the first direction. [alpha] [lt]; 180 degrees; the transfer device comprises a fixing frame, a driving part connected to the fixing frame, a transfer arm in transmission connection to the driving part in the first direction and a transfer part connected to the transfer arm, the transfer arm is located between the placement surface and the test surface, the transfer part is used for transferring crystal grains, and the driving part is used for driving the transfer arm to rotate around the first direction; and the crystal grains are transferred between the placing surface and the testing surface through the transferring component. The test equipment can reduce the occupied space, improve the space utilization rate, shorten the swing time and improve the efficiency. The chip photoelectric parameter testing device is applied to the field of chip photoelectric parameter testing equipment.

Description

Technical Field

[0001] The utility model relates to the field of chip photoelectric parameter testing equipment, in particular to a testing equipment. Background Art

[0002] LED is the abbreviation of light-emitting diode, which is mainly used in display lighting and other fields. Therefore, its optical performance is required to be high. During its production process, the optoelectronic parameters of the chip must be tested.

[0003] In the related art, the optoelectronic parameter testing equipment of the chip is manufactured with the following structure: the material tray in the testing equipment is placed horizontally, the material tray has a horizontal placement surface, the test platform is also placed horizontally, the test platform has a horizontal test surface, the swing arm is arranged between the material tray and the test platform, the swing arm rotates 180° in the horizontal direction to complete the placement of the material once, the material tray, the test platform and the swing arm are all arranged in the horizontal plane, the overall area of ​​the equipment is large, and the swing arm rotates in the horizontal plane, and needs to have a long length to transfer the grains between the material tray and the test platform. The length of the swing arm itself will affect the rotation rate of the swing arm. The longer the swing arm, the lower the rotation rate, which makes the swing arm take a long time to swing and the efficiency is low. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a testing device that can reduce the occupied space, improve the space utilization rate, reduce the swing time, and improve the efficiency.

[0005] The testing device according to the embodiment of the utility model comprises:

[0006] A test device having a test surface for testing;

[0007] The loading and unloading device has a fixing assembly for fixing a material tray, the material tray is provided with a placement surface for placing the grains, the placement surface and the test surface are arranged at a preset angle α around a first direction, and the test device satisfies: 0°<α<180°;

[0008] The transfer device includes a fixed frame, a driving member connected to the fixed frame, a transfer arm connected to the driving member for transmission along the first direction, and a transfer component connected to the transfer arm, the transfer arm is located between the placement surface and the test surface, the transfer component is used to transfer the grains, and the driving member is used to drive the transfer arm to rotate around the first direction to transfer the grains between the placement surface and the test surface through the transfer component.

[0009] The testing device according to the embodiment of the utility model has at least the following beneficial effects:

[0010] 1. The test surface of the test device and the placement surface of the loading and unloading device are arranged at an angle along the first direction to reduce the footprint of the test device and the loading and unloading device in the horizontal plane, make full use of the height space, and improve the space utilization efficiency;

[0011] 2. The transfer arm of the transfer device rotates through a preset angle α in the transfer space to complete the transfer of the die between the test surface and the placement surface. The transfer path of the transfer arm is less than 180°, which reduces the transfer path of the transfer arm and improves the transfer efficiency;

[0012] 3. The distance between the test surface and the placement surface is shorter, so that the length of the transfer arm can be reduced accordingly, thereby increasing the rotation rate of the transfer arm and thus improving the transfer efficiency.

[0013] According to some embodiments of the utility model, the transfer arm is provided with a detection part, the fixed frame is provided with a first detection member located in the rotation path of the detection part, and the detection member is configured such that: when the transfer member rotates to the placement surface, it is detected by the first detection member, and the transfer arm stops rotating;

[0014] And / or, the fixed frame is provided with a second detection member located in the rotation path of the detection part, and the detection part is configured such that when the transfer component rotates to the test surface, it is detected by the second detection member and the transfer arm stops rotating.

[0015] According to some embodiments of the utility model, the fixing frame is provided with a first stopper and a second stopper, and the first stopper and the second stopper are both provided in the rotation path of the transfer arm;

[0016] Wherein, the first stopper is configured to stop the transfer arm when the transfer component rotates to the placement surface; and the second stopper is configured to stop the transfer arm when the transfer component rotates to the test surface.

[0017] According to some embodiments of the utility model, the transfer device further comprises a coupling member, the driving member is provided with a driving shaft along the first direction, the coupling member connects the driving shaft and the transfer arm, the fixing frame is provided with a first stopper and a second stopper, and the first stopper and the second stopper are both provided in the rotation path of the coupling member;

[0018] Wherein, the first stopper is configured to stop the connecting member when the transfer member rotates to the placement surface; and the second stopper is configured to stop the connecting member when the transfer member rotates to the test surface.

[0019] According to some embodiments of the utility model, the transfer device also includes a connecting member, the driving member is provided with a driving shaft along the first direction, the connecting member connects the driving shaft and the transfer arm, the connecting member includes a main body, a first connecting part and a second connecting part both connected to the main body, the first connecting part is connected to the driving shaft, and the second connecting part is connected to the transfer arm.

[0020] According to some embodiments of the utility model, the first connecting portion and the second connecting portion are spaced apart along the first direction, the first connecting portion includes an adjusting member and a first section and a second section spaced apart along a second direction, the second direction intersects with the first direction, the adjusting member is used to adjust the interval between the first section and the second section, and a connecting hole for clamping the drive shaft is provided between the first section and the second section.

[0021] According to some embodiments of the utility model, the first section is provided with a first connecting hole on a side of the connecting hole away from the main body, the second section is provided with a second connecting hole coaxial with the first connecting hole on a side of the connecting hole away from the main body, the adjusting member includes an abutting portion and an inserting portion, the inserting portion is sequentially inserted into the first connecting hole and the second connecting hole and threadedly locked in the second connecting hole, or the inserting portion extends out of the second connecting hole and is threadedly locked with a nut, the abutting portion abuts against the first section, and the abutting portion and the inserting portion jointly squeeze the first section and the second section.

[0022] According to some embodiments of the utility model, the transfer arm includes a first branch arm along the first direction and a second branch arm along the second direction, the second direction intersects with the first direction, the second branch arm connects the first branch arm and the driving member, and the transfer component is provided at one end of the first branch arm away from the second branch arm.

[0023] According to some embodiments of the present invention, the transfer arm is further provided with a third branch arm along the second direction, and the third branch arm is connected to the driving member along the opposite direction of the second branch arm.

[0024] According to some embodiments of the present invention, the test surface is a horizontal surface, and the placement surface is perpendicular to the test surface.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0027] Figure 1 This is a schematic diagram of the structure in which a transfer component of a test device according to an embodiment of the utility model is aligned with a test surface;

[0028] Figure 2 This is a structural schematic diagram of a transfer component of a testing device according to an embodiment of the utility model being aligned with a placement surface;

[0029] Figure 3 A schematic diagram of the structure of a transfer device of a test device according to an embodiment of the utility model;

[0030] Figure 4 This is a schematic diagram of the exploded structure of a transfer device of a test device according to an embodiment of the utility model;

[0031] Figure 5 A schematic cross-sectional view of a transfer device of a testing device according to an embodiment of the utility model;

[0032] Figure 6 This is a schematic structural diagram of a connecting piece of a transfer device of a testing device according to an embodiment of the utility model.

[0033] Figure Number:

[0034] Testing device 100; testing surface 110; testing disk 120;

[0035] Loading and unloading device 200; fixing assembly 210; material tray 220; placement surface 221;

[0036] Transfer device 300;

[0037] Fixed frame 310; second detection member 311; first stopper 312; second stopper 313; mounting seat 314; mounting cavity 3141;

[0038] Driving member 320; driving shaft 321;

[0039] Transfer arm 330; detection unit 331; first branch arm 332; second branch arm 333; third branch arm 334;

[0040] Transfer component 340;

[0041] Connecting piece 350 ; main body 351 ; first connecting portion 352 ; first sub-portion 3521 ; second sub-portion 3522 ; connecting hole 3523 ; second connecting portion 353 . DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 invention.

[0044] In the description of the present utility model, "several" refers to one or more, and "multiple" refers to two or more. If there is a description of "first" or "second", it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0045] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0046] In the related art, the optoelectronic parameter testing equipment of the chip includes: a loading device, a loading transfer device and a test platform. Generally speaking, the loading device clamps a material tray, the material tray is placed horizontally and has a horizontal placement surface, the test platform is also placed horizontally, and the test platform has a horizontal test surface. The loading transfer device is arranged between the loading device and the test platform. The loading transfer device is provided with a horizontal and self-rotating swing arm, the swing arm rotates 180° in the horizontal direction to complete the transfer of the grains of the loading device to the test platform. The loading device, the test platform and the loading transfer device are all arranged in a horizontal plane, and the overall footprint of the equipment is large. In addition, the swing arm rotates in the horizontal plane and needs to have a longer length to transfer the grains between the material tray and the test platform. The length of the swing arm itself will affect the rotation rate of the swing arm. The longer the swing arm, the lower the rotation rate, which makes the swing arm take a long time to swing and the efficiency is low.

[0047] Reference Figures 1 to 6As shown, the embodiment of the utility model proposes a test device, including: a test device 100, a loading and unloading device 200 and a transfer device 300, the test device 100 has a test surface 110 for testing; the loading and unloading device 200 has a fixing assembly 210 for fixing a material tray 220, the material tray 220 is provided with a placement surface 221 for placing a die, the placement surface 221 and the test surface 110 are arranged at a preset angle α around a first direction, and the test device satisfies: 0°<α<180°; the transfer device 300 The device 300 includes a fixed frame 310, a driving member 320 connected to the fixed frame 310, a transfer arm 330 connected to the driving member 320 along a first direction, and a transfer component 340 connected to the transfer arm 330, the transfer arm 330 is located between the placement surface 221 and the test surface 110, the transfer component 340 is used to transfer the crystal grains, and the driving member 320 is used to drive the transfer arm 330 to rotate around the first direction, so as to transfer the crystal grains between the placement surface 221 and the test surface 110 through the transfer component 340. The test equipment in this embodiment can reduce the occupied space of the test device 100 and the loading and unloading device 200 in the horizontal plane by setting the test surface 110 and the placement surface 221 at a preset angle, thereby improving the space utilization rate; and reduce the distance between the test surface 110 and the placement surface 221, which can shorten the length of the transfer arm 330, reduce the swing time of the transfer arm 330, and improve the transfer efficiency.

[0048] In this embodiment, refer to Figure 1 and Figure 2 As shown, the test device 100 includes a test disk 120, which is placed horizontally. The top surface of the test disk 120 forms a test surface 110, and the test surface 110 is provided with a plurality of stations in sequence around the circumferential direction of the test disk 120. Each station is provided with corresponding equipment, and each station is fixedly arranged. When the test disk 120 rotates, the conveyed grains are sequentially passed through each station and corresponding actions are performed at the station; for example, the test disk 120 is provided with a loading station, a testing station and an unloading station, and the loading transfer device moves the grains on the loading device tray 220 to the loading station of the test disk 120; then the test disk 120 rotates, and the grains at the loading station are rotated to the testing station for testing; after the test, the test disk 120 rotates again, and the grains at the testing station are rotated to the unloading station, and the unloading transfer device transfers the grains at the unloading station of the test platform to the tray 220 of the unloading device. It should be noted that the actual testing device 100 also includes a die positioning station and the like.

[0049] Reference Figure 1 and Figure 2 As shown, the loading and unloading device 200 includes a loading device and / or a unloading device. Figure 1 and Figure 2The loading and unloading device 200 can be a loading device or a unloading device. Both the loading device and the unloading device are provided with a fixing component 210 for clamping a material tray 220. The material tray 220 has a placement surface 221 for placing grains. The material tray 220 is provided with a UV film or a blue film. In the present embodiment, the material tray 220 is provided with a blue film, and the grains are arranged in the horizontal and vertical directions and bonded to the blue film, so the material tray 220 can be placed vertically without causing the grains to fall. When the transfer component 340 adsorbs the grains, the negative pressure adsorption force can be used to tear the grains off the blue film, thereby realizing the separation of the grains from the blue film. In addition, an ejection rod is provided on the back side of the blue film on which the grains are adhered, so as to eject the grains on the blue film, making it easier for the transfer component 340 to adsorb. When the ejection rod is withdrawn, the blue film returns to its original state. When the crystal grains are transferred to the placement surface 221 of the material tray 220 of the unloading device, the crystal grains can be fixed by the adhesion of the blue film, thereby achieving fixation of the crystal grains by the unloading device.

[0050] Reference Figure 1 and Figure 2 As shown, when the placement surface 221 of the loading and unloading device 200 is set at an angle to the test surface 110 of the test platform, the projection area of ​​the placement surface 221 and the test surface 110 in the horizontal plane is reduced, so that the footprint of the loading and unloading device 200 and the test device 100 in the horizontal plane is reduced. When the test surface 110 is set horizontally and the placement surface 221 is perpendicular to the test surface 110, the footprint of the loading and unloading device 200 is very low, and the grains on the test surface 110 are not easily affected by gravity, so the test is more convenient.

[0051] Reference Figure 1 and Figure 2 As shown, the transfer device 300 includes a loading transfer device and / or a unloading transfer device. Figure 1 and Figure 2 The transfer device 300 can be a loading transfer device or a unloading transfer device. The loading transfer device is arranged between the loading device and the test platform to transfer the grains on the placement surface 221 of the loading device to the test surface 110 of the test platform. The unloading transfer device is arranged between the unloading device and the test platform to transfer the grains on the test platform to the placement surface 221 of the unloading device.

[0052] Reference Figure 3 and Figure 4As shown, the fixing frame 310 is in the shape of a rectangular box, the driving member 320 is arranged in the rectangular box, the driving shaft 321 of the driving member 320 extends out of the outer peripheral surface of the fixing frame 310, and is connected to the transfer arm 330 for driving, so as to drive the transfer arm 330 to rotate around a first direction, so that the transfer arm 330 can move between the placement surface 221 and the test surface 110; the transfer component 340 is connected to the side of the transfer arm 330 away from the fixing frame 310, and the transfer component 340 is arranged along the second direction, and the second direction is the radial direction of the rotating circle formed by the rotation of the transfer arm 330. The transfer component 340 is integrally connected to the transfer arm 330 or detachably connected. When integrally connected, the transfer component 340 can be integrally formed with the transfer arm 330, the transfer component 340 is a part of the transfer arm 330, or the transfer component 340 and the transfer arm 330 are connected as a whole by welding or the like. The transfer component 340 can fix the grains by vacuum adsorption, magnetic attraction or clamping. For example, the transfer component 340 is a hollow tube, one end of which is connected to a negative pressure source. When the negative pressure source is turned on, negative pressure is formed at the other end of the hollow tube to adsorb and fix the grains.

[0053] It is worth understanding that the test surface 110 of the test device 100 and the placement surface 221 of the loading and unloading device 200 are set at an angle along the first direction to reduce the footprint of the test device 100 and the loading and unloading device 200 in the horizontal plane, make full use of the height space, and improve the space utilization efficiency; the transfer arm 330 of the transfer device 300 rotates through a preset angle α in the transfer space to complete the transfer of the grain between the test surface 110 and the placement surface 221, and the transfer path of the transfer arm 330 is less than 180°, which reduces the transfer path of the transfer arm 330 and improves the transfer efficiency; the distance between the test surface 110 and the placement surface 221 is shorter, so that the length of the transfer arm 330 can be reduced accordingly, thereby increasing the rotation rate of the transfer arm 330 and thereby improving the transfer efficiency.

[0054] Reference Figure 3 and Figure 4 As shown, in some specific embodiments of the present utility model, the transfer arm 330 is provided with a detection part 331, the fixed frame 310 is provided with a first detection part located in the rotation path of the detection part 331, and the detection part 331 is configured as follows: when the transfer component 340 rotates to the placement surface 221, it is detected by the first detection part, and the transfer arm 330 stops rotating; and / or, the fixed frame 310 is provided with a second detection part 311 located in the rotation path of the detection part 331, and the detection part 331 is configured as follows: when the transfer component 340 rotates to the test surface 110, it is detected by the second detection part 311, and the transfer arm 330 stops rotating.

[0055] It is worth understanding that the position of the detection part 331 is detected by the first detection part and the second detection part 311. When the detection part 331 is detected by the first detection part, the transfer part 340 of the transfer arm 330 is facing the placement surface 221. When the detection part 331 is detected by the second detection part 311, the transfer part 340 of the transfer arm 330 is facing the test surface 110, thereby realizing the detection of the position of the transfer arm 330. After the detection, the driving part 320 stops driving the transfer arm 330 to rotate, thereby improving the rotation accuracy of the transfer arm 330, so that the alignment accuracy of the transfer part 340 to the test surface 110 or the placement surface 221 is higher.

[0056] In this embodiment, when the transfer part 340 of the transfer arm 330 moves to align with the test surface 110, the detection part 331 is detected by the second detection part 311. As another embodiment, when the transfer part 340 of the transfer arm 330 moves to align with the test surface 110, the detection part 331 is detected by the first detection part, and when the transfer part 340 of the transfer arm 330 moves to align with the placement surface 221, the detection part 331 is detected by the second detection part 311. The first detection part and the second detection part 311 are both photoelectric induction switches, and the detection part 331 is a plate-shaped block, which triggers the photoelectric induction switch by blocking the light beam in the photoelectric induction switch.

[0057] In some specific embodiments of the present invention, the fixing frame 310 is provided with a first stopper 312 and a second stopper 313, and the first stopper 312 and the second stopper 313 are both arranged in the rotation path of the transfer arm 330; wherein the first stopper 312 is configured to stop the transfer arm 330 when the transfer component 340 rotates to the placement surface 221; and the second stopper 313 is configured to stop the transfer arm 330 when the transfer component 340 rotates to the test surface 110.

[0058] It is worth understanding that the transfer arm 330 is directly stopped by the first stopper 312 and the second stopper 313 , thereby improving the rotation accuracy of the transfer arm 330 , so that the alignment accuracy of the transfer component 340 with the test surface 110 and the placement surface 221 is higher.

[0059] Reference Figure 4 and Figure 5As shown, in some other specific embodiments of the utility model, the transfer device 300 also includes a connecting member 350, the driving member 320 is provided with a driving shaft 321 along the first direction, the connecting member 350 connects the driving shaft 321 and the transfer arm 330, and the fixed frame 310 is provided with a first stop member 312 and a second stop member 313, and the first stop member 312 and the second stop member 313 are both arranged in the rotation path of the connecting member 350; wherein the first stop member 312 is configured to: stop the connecting member 350 when the transfer component 340 rotates to the placement surface 221; the second stop member 313 is configured to: stop the connecting member 350 when the transfer component 340 rotates to the test surface 110.

[0060] It is worth understanding that the first stopper 312 and the second stopper 313 directly stop the connecting member 350, thereby improving the rotation accuracy of the transfer arm 330, so that the alignment accuracy of the transfer component 340 with the test surface 110 and the placement surface 221 is higher.

[0061] In this embodiment, refer to Figure 4 and Figure 5 As shown, the fixing frame 310 is provided with a rectangular mounting seat 314 at the portion where the driving shaft 321 extends out, and a circular mounting cavity 3141 is provided in the mounting seat 314 which surrounds the driving shaft 321, and a connecting member 350 is provided in the mounting cavity 3141, and a first stop member 312 and a second stop member 313 are provided on the outer peripheral surface of the mounting seat 314 along the chord direction of the mounting cavity 3141. The first stop member 312 and the second stop member 313 are both bolts and are threadedly connected to the mounting seat 314, so as to facilitate adjustment of the length of the first stop member 312 and the second stop member 313 penetrating into the mounting cavity 3141, and further adjust the stop positions of the first stop member 312, the second stop member 313 and the connecting member 350.

[0062] Reference Figure 4 and Figure 6 As shown, in some specific embodiments of the present invention, the transfer device 300 also includes a connecting member 350, the driving member 320 is provided with a driving shaft 321 along the first direction, the connecting member 350 connects the driving shaft 321 and the transfer arm 330, the connecting member 350 includes a main body 351, a first connecting portion 352 and a second connecting portion 353 both connected to the main body 351, the first connecting portion 352 is connected to the driving shaft 321, and the second connecting portion 353 is connected to the transfer arm 330.

[0063] The first connecting portion 352 and the second connecting portion 353 are spaced apart along the first direction, the first connecting portion 352 includes an adjusting member and a first section 3521 and a second section 3522 spaced apart along the second direction, the second direction intersects with the first direction, the adjusting member is used to adjust the interval between the first section 3521 and the second section 3522, and a connecting hole 3523 for clamping the drive shaft 321 is provided between the first section 3521 and the second section 3522.

[0064] It is worth understanding that there is a gap between the first connecting portion 352 and the second connecting portion 353, and there is also a gap between the first sub-portion 3521 and the second sub-portion 3522 of the first connecting portion 352. When the gap between the first sub-portion 3521 and the second sub-portion 3522 is reduced by the adjusting member, the diameter of the connecting hole 3523 is reduced, the first sub-portion 3521 and the second sub-portion 3522 are limitedly engaged with the driving shaft 321, and the engagement and fixing of the connecting member 350 and the driving shaft 321 make the transmission of the driving shaft 321 more reliable. When the driving shaft 321 and the connecting member 350 need to be separated, the gap between the first sub-portion 3521 and the second sub-portion 3522 is increased by the adjusting member, so that the diameter of the connecting hole 3523 is restored to its original state, and the driving shaft 321 can be withdrawn from the connecting hole 3523.

[0065] Specifically, refer to Figure 4 and Figure 6 As shown, an arc-shaped hole is respectively provided on two opposite surfaces of the first sub-section 3521 and the second sub-section 3522, and the two arc-shaped holes are enclosed to form a connecting hole 3523. The first sub-section 3521 is provided with a first connecting hole on the side of the connecting hole 3523 away from the main body 351, and the second sub-section 3522 is provided with a second connecting hole coaxial with the first connecting hole on the side of the connecting hole 3523 away from the main body 351. The adjusting member includes an abutting portion and an inserting portion, the inserting portion is sequentially inserted into the first connecting hole and the second connecting hole, and is threadedly locked in the second connecting hole, or the inserting portion extends out of the second connecting hole and is threadedly locked with a nut, the abutting portion abuts against the first sub-section 3521, and the abutting portion and the inserting portion jointly squeeze the first sub-section 3521 and the second sub-section 3522; the adjusting member is a bolt , through the head of the bolt abutting against the first division 3521, and then through the thread of the bolt screw rod being threadedly connected to the second connecting hole of the second division 3522, or the thread of the bolt screw rod being connected to the nut, through the nut abutting against the side of the second division 3522 away from the first division 3521, the first division 3521 and the second division 3522 can be brought closer to each other under the pulling force of the bolt, thereby reducing the interval between the first division 3521 and the second division 3522, and reducing the diameter of the connecting hole 3523, so that the inner circumference of the connecting hole 3523 is limitedly engaged with the outer circumference of the driving shaft 321.

[0066] Reference Figure 4As shown, in some specific embodiments of the present invention, the transfer arm 330 includes a first branch arm 332 along a first direction and a second branch arm 333 along a second direction, the second direction intersects with the first direction, the second branch arm 333 connects the first branch arm 332 and the driving member 320, and a transfer component 340 is provided at one end of the first branch arm 332 away from the second branch arm 333.

[0067] It is worth understanding that the second branch arm 333 in the second direction increases the rotation radius of the transfer arm 330, so that the transfer arm 330 makes a circular motion around the axis of the drive shaft 321, so that the transfer component 340 can be aligned with the placement surface 221 or the test surface 110 at a more suitable length. The length of the transfer component 340 is lower, which can improve the rotation accuracy.

[0068] Reference Figure 4 As shown, in some specific embodiments of the present invention, the transfer arm 330 is further provided with a third branch arm 334 along the second direction, and the third branch arm 334 is connected to the driving member 320 along the opposite direction of the second branch arm 333 .

[0069] It is worth understanding that the third arm 334 acts as a counterweight to balance the force on the drive shaft 321 , so that the force on the drive shaft 321 is balanced and the drive shaft 321 rotates with higher precision.

[0070] In this embodiment, a detection portion 331 is provided at one end of the third branch arm 334 away from the second branch arm 333 to detect the position of the transfer arm 330 .

[0071] Reference Figure 1 and Figure 2 As shown, in some specific embodiments of the present invention, the test surface 110 is a horizontal surface, and the placement surface 221 is perpendicular to the test surface 110. It is worth understanding that the test surface 110 is placed horizontally, which is convenient for placing and testing the grains, and can ensure the stability of the grains on the test surface 110, while the placement surface 221 is perpendicular to the test surface 110, which reduces the ground space occupied by the loading and unloading device 200, thereby improving the compactness of the device, making the device occupy a smaller area, and the rotation of the transfer arm 330 is more stable.

[0072] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A testing device, characterized in that: include: A test device having a test surface for testing; The loading and unloading device has a fixing assembly for fixing a material tray, the material tray is provided with a placement surface for placing the grains, the placement surface and the test surface are arranged at a preset angle α around a first direction, and the test device satisfies: 0°<α<180°; The transfer device includes a fixed frame, a driving member connected to the fixed frame, a transfer arm connected to the driving member for transmission along the first direction, and a transfer component connected to the transfer arm, the transfer arm is located between the placement surface and the test surface, the transfer component is used to transfer the grains, and the driving member is used to drive the transfer arm to rotate around the first direction to transfer the grains between the placement surface and the test surface through the transfer component.

2. The test device according to claim 1, characterized in that: The transfer arm is provided with a detection part, the fixed frame is provided with a first detection member located in the rotation path of the detection member, and the detection member is configured to: when the transfer member rotates to the placement surface, it is detected by the first detection member, and the transfer arm stops rotating; And / or, the fixed frame is provided with a second detection member located in the rotation path of the detection part, and the detection part is configured such that when the transfer component rotates to the test surface, it is detected by the second detection member and the transfer arm stops rotating.

3. The testing device according to claim 1, characterized in that: The fixing frame is provided with a first stopper and a second stopper, and the first stopper and the second stopper are both provided in the rotation path of the transfer arm; Wherein, the first stopper is configured to stop the transfer arm when the transfer component rotates to the placement surface; and the second stopper is configured to stop the transfer arm when the transfer component rotates to the test surface.

4. The testing device according to claim 1, characterized in that: The transfer device further comprises a coupling member, the driving member is provided with a driving shaft along the first direction, the coupling member connects the driving shaft and the transfer arm, the fixing frame is provided with a first stopper and a second stopper, and the first stopper and the second stopper are both provided in a rotation path of the coupling member; Wherein, the first stopper is configured to stop the connecting member when the transfer member rotates to the placement surface; and the second stopper is configured to stop the connecting member when the transfer member rotates to the test surface.

5. The testing device according to claim 1, characterized in that: The transfer device also includes a connecting piece, the driving piece is provided with a driving shaft along the first direction, the connecting piece connects the driving shaft and the transfer arm, the connecting piece includes a main body, a first connecting piece and a second connecting piece both connected to the main body, the first connecting piece is connected to the driving shaft, and the second connecting piece is connected to the transfer arm.

6. The testing device according to claim 5, characterized in that: The first connecting portion and the second connecting portion are spaced apart along the first direction, the first connecting portion includes an adjusting member and a first section and a second section spaced apart along a second direction, the second direction intersects with the first direction, the adjusting member is used to adjust the interval between the first section and the second section, and a connecting hole for clamping the drive shaft is provided between the first section and the second section.

7. The testing device according to claim 6, characterized in that: The first section is provided with a first connecting hole on a side of the connecting hole away from the main body, and the second section is provided with a second connecting hole coaxial with the first connecting hole on a side of the connecting hole away from the main body. The adjusting member includes an abutting portion and an inserting portion, the inserting portion is sequentially inserted into the first connecting hole and the second connecting hole and threadedly locked in the second connecting hole, or the inserting portion extends out of the second connecting hole and is threadedly locked with a nut, the abutting portion abuts against the first section, and the abutting portion and the inserting portion jointly squeeze the first section and the second section.

8. The testing device according to claim 1, characterized in that: The transfer arm includes a first branch arm along the first direction and a second branch arm along the second direction, the second direction intersects with the first direction, the second branch arm connects the first branch arm and the driving member, and the transfer component is provided at one end of the first branch arm away from the second branch arm.

9. The testing device according to claim 8, characterized in that: The transfer arm is further provided with a third branch arm along the second direction, and the third branch arm is connected to the driving member along the opposite direction of the second branch arm.

10. The testing device according to claim 1, characterized in that: The test surface is a horizontal surface, and the placement surface is perpendicular to the test surface.

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