Chip unloading device and chip testing machine

Abstract

The application provides a chip feeding and discharging device and a chip testing machine. The chip feeding and discharging device comprises a mounting frame, a plurality of material boxes, a plurality of lifting mechanisms, a box changing mechanism and a manipulator. The mounting frame is provided with a plurality of material bins in the transverse direction. The plurality of material boxes can be arranged in the material bins in the vertical direction. The plurality of lifting mechanisms are arranged one by one in the plurality of material bins, and each lifting mechanism comprises a lifting disc and a lifting driver. The box changing mechanism comprises a material box clamping assembly and a transverse driving member. The material box clamping assembly comprises a material box arm, a vertical driving member and a longitudinal driving member. The manipulator is arranged on the mounting frame and is used for taking and placing chips at the top of the material bin and transferring the chips between the material box and the detection device. The chip testing machine comprises the above chip feeding and discharging device and a detection device. The feeding and discharging device and the chip testing machine can automatically take out the chips to be tested one by one for testing and automatically classify and place the tested chips, thereby improving the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automation devices, in particular to a chip feeding and discharging device and a chip testing machine. BACKGROUND

[0002] Generally, chips are arranged in electronic products, and the chips need to be tested after being processed. Through testing, problems of the chips are found, so that the products reaching consumers have as few problems as possible or the reliability of the products is improved.

[0003] Traditional chip testing mainly involves manually placing a single chip into a testing device for testing, and then manually classifying and placing the tested chip, which is low in production efficiency and cannot meet the demand of large-scale and efficient production.

[0004] Therefore, a chip feeding and discharging device and a chip testing machine are needed to solve the above technical problems. SUMMARY

[0005] The present application provides a feeding and discharging device and a chip testing machine, which can automatically take out the chips one by one for testing and automatically classify and place the tested chips, thereby improving the production efficiency.

[0006] The technical scheme of the present application is as follows:

[0007] A chip feeding and discharging device comprises:

[0008] A mounting frame is provided with a plurality of bins in the transverse direction;

[0009] A plurality of boxes, each of which is used to carry a plurality of chips, can be arranged in the bins in the vertical direction;

[0010] A plurality of lifting mechanisms are respectively and correspondingly arranged in the plurality of bins, and each of the lifting mechanisms comprises a lifting disc and a lifting driver; the lifting driver is arranged on the mounting frame and connected to the lifting disc, and is used to drive the lifting disc to move in the vertical direction, so as to drive the box to ascend and descend;

[0011] A box changing mechanism is arranged on one side of the longitudinal direction of the magazine and is used to move the magazine between two magazines, and the box changing mechanism comprises a magazine clamping assembly and a transverse driving element; the magazine clamping assembly comprises a magazine arm, a vertical driving element and a longitudinal driving element, the magazine arm is used to clamp the magazine; the vertical driving element is connected to the magazine arm and is used to drive the magazine arm to move vertically, the longitudinal driving element is connected to the vertical driving element and is used to drive the vertical driving element and the magazine arm to move longitudinally so that the magazine arm enters or exits the magazine; the transverse driving element is connected to the longitudinal driving element and is used to drive the magazine clamping assembly to move transversely so that the magazine moves to the corresponding magazine; and

[0012] A mechanical hand is arranged on the mounting frame and is used to take and place the chip at the top of the magazine and transfer the chip between the magazine and the detection device.

[0013] In the chip loading and unloading device, the lifting mechanism is located on one side of the transverse direction of the magazine; the bottom of each magazine is provided with a tray, the tray is slidingly connected to the mounting frame in the longitudinal direction, the tray is provided with a position avoiding gap, and the tray comprises a first position and a second position on its sliding track; when the tray is located at the first position, the tray is located in the magazine, and the position avoiding gap is arranged vertically opposite to the lifting disc; when the tray is located at the second position, the tray extends to the outside of the magazine, and is away from the box changing mechanism relative to the first position.

[0014] In the chip loading and unloading device, each tray is provided with a locking hole, and the axial direction of the locking hole is the transverse direction;

[0015] The chip loading and unloading device further comprises a plurality of locking devices, the locking device comprises a locking shaft and a locking cylinder; the locking shaft moves in the transverse direction at the locking hole; the locking cylinder is arranged on the mounting frame and is connected to the locking shaft and is used to drive the locking shaft to move in the transverse direction and to enter or exit the locking hole so as to lock or unlock the tray at the first position.

[0016] In the chip loading and unloading device, the tray comprises a connecting plate and two extension plates; the connecting plate extends in the longitudinal direction and is slidingly connected to the mounting frame; the two extension plates are both connected to the connecting plate, are arranged in the longitudinal direction at intervals and extend in the transverse direction, and the position avoiding gap is formed between the two extension plates.

[0017] The chip feeding and discharging device has the advantages that the work surface is arranged on the top of the mounting frame, the material bin and the box changing mechanism are arranged below the work surface, the mechanical arm is arranged on the work surface and directly above the box changing mechanism, the material port is arranged on the work surface and corresponds to the position of the material bin, and the mechanical arm is used for taking and placing chips.

[0018] The chip feeding and discharging device has the advantages that the work surface is arranged on the top of the mounting frame, the material bin and the box changing mechanism are arranged below the work surface, the mechanical arm is arranged on the work surface and directly above the box changing mechanism, the material port is arranged on the work surface and corresponds to the position of the material bin, and the mechanical arm is used for taking and placing chips.

[0019] The chip feeding and discharging device has the advantages that the work surface is arranged on the top of the mounting frame, the material bin and the box changing mechanism are arranged below the work surface, the mechanical arm is arranged on the work surface and directly above the box changing mechanism, the material port is arranged on the work surface and corresponds to the position of the material bin, and the mechanical arm is used for taking and placing chips.

[0020] The chip feeding and discharging device has the advantages that the work surface is arranged on the top of the mounting frame, the material bin and the box changing mechanism are arranged below the work surface, the mechanical arm is arranged on the work surface and directly above the box changing mechanism, the material port is arranged on the work surface and corresponds to the position of the material bin, and the mechanical arm is used for taking and placing chips.

[0021] The mounting plate is connected to the vertical driving element.

[0022] The base plate is fixed below the mounting plate and is arranged in a spaced manner, and the base plate is square.

[0023] The first clamping assembly includes a first clamping jaw and a first clamping driver. The first clamping jaw moves in the transverse direction and extends below the base plate. The base plate is provided with the first clamping jaw on both sides in the transverse direction. The first clamping driver is arranged between the base plate and the mounting plate and is connected to the first clamping jaw, so as to drive the first clamping jaw to move in the transverse direction. The first clamping jaw on both sides in the transverse direction of the base plate can clamp both sides in the transverse direction of the material box.

[0024] The second clamping assembly includes a second clamping jaw and a second clamping driver. The second clamping jaw moves in the longitudinal direction and extends below the base plate. The base plate is provided with the second clamping jaw on both sides in the longitudinal direction. The second clamping driver is arranged between the base plate and the mounting plate and is connected to the second clamping jaw, so as to drive the second clamping jaw to move in the longitudinal direction. The second clamping jaw on both sides in the longitudinal direction of the base plate can clamp both sides in the longitudinal direction of the material box.

[0025] In the chip loading and unloading device of the present invention, the cassette arm further includes at least four guide blocks, and the guide blocks are provided on all four sides of the substrate. The guide blocks are used to guide the chip cassette.

[0026] Another technical solution of the present invention is:

[0027] A chip testing machine, comprising:

[0028] The aforementioned chip loading and unloading device; and,

[0029] A testing device for testing the chip under test conveyed by the robotic arm.

[0030] Compared to existing technologies, the advantages of this invention are as follows: In operation, the chip loading / unloading device and chip testing machine of this invention place a stack of boxes filled with chips to be tested into one of the hoppers. A lifting driver drives a lifting platen upwards, lifting the stack of boxes until the top box reaches a designated position. A robotic arm then removes the chips to be tested one by one from the top box and delivers them to the testing device for testing. Once the top box is empty, a horizontal drive component moves the box clamping assembly horizontally to the hopper, a vertical drive component moves the box arm vertically into the hopper, and a vertical drive component moves the box arm vertically downwards. The box arm clamps the empty box and moves upwards, then vertically out of the hopper and horizontally to another hopper to place the empty box into it. The lifting driver continues to drive the lifting platen upwards, lifting all the boxes until the top box reaches a designated position, and the operation is repeated. If a chip passes testing, the robotic arm places it onto the corresponding hopper. Once the top hopper is full of qualified chips, the lifting driver moves the lifting plate downwards, and the hopper-changing mechanism places an empty hopper on top of the lifting plate, continuing the loading of qualified chips, and the cycle repeats. Similarly, if a chip fails testing, the robotic arm places it onto the corresponding hopper. Once the top hopper is full of defective chips, the lifting driver moves the lifting plate downwards, and the hopper-changing mechanism places an empty hopper on top of the lifting plate, continuing the loading of defective chips, and the cycle repeats. This chip loading / unloading device and chip testing machine of the present invention can automatically remove chips one by one for testing and automatically classify and arrange the tested chips, improving production efficiency. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of the present invention.

[0032] Figure 1The structure schematic diagram of the chip testing machine provided by the preferred embodiment of the present application.

[0033] Figure 2 The partial structure schematic diagram of the chip feeding and discharging device provided by the preferred embodiment of the present application.

[0034] Figure 3 The structure schematic diagram of the lifting mechanism and the tray of the chip feeding and discharging device provided by the preferred embodiment of the present application.

[0035] Figure 4 The exploded structure schematic diagram of the magazine and the tray of the chip feeding and discharging device provided by the preferred embodiment of the present application.

[0036] Figure 5 The structure schematic diagram of the lifting mechanism of the chip feeding and discharging device provided by the preferred embodiment of the present application.

[0037] Figure 6 The structure schematic diagram of the magazine changing mechanism of the chip feeding and discharging device provided by the preferred embodiment of the present application.

[0038] Figure 7 The structure schematic diagram of the magazine clamping assembly of the chip feeding and discharging device provided by the preferred embodiment of the present application.

[0039] Figure 8 The structure schematic diagram of the magazine arm of the chip feeding and discharging device provided by the preferred embodiment of the present application.

[0040] Figure 9 The structure schematic diagram of the locking device of the chip feeding and discharging device provided by the preferred embodiment of the present application.

[0041] Among them,

[0042] 1. A chip feeding and discharging device,

[0043] 11. A mounting frame, 111, a magazine, 112, a working surface, 1121, a feeding opening,

[0044] 12. A magazine,

[0045] 13. A lifting mechanism, 131, a lifting disc, 132, a lifting driver,

[0046] 14. A magazine changing mechanism,

[0047] 141. A magazine clamping assembly,

[0048] 1411, cartridge arm, 14111, mounting plate, 14112, base plate, 14113, first clamping assembly, 14114, first clamping jaw, 14115, first clamping driver, 14116, second clamping assembly, 14117, second clamping jaw, 14118, second clamping driver, 14119, guide block,

[0049] 1412, vertical driving member,

[0050] 1413, longitudinal driving member,

[0051] 142, transverse driving member,

[0052] 15, mechanical hand,

[0053] 16, tray, 161, position avoiding notch, 162, locking hole, 163, connecting plate, 164, extension plate, 165, angle limiting block,

[0054] 17, locking device, 171, locking shaft, 172, locking cylinder,

[0055] 2, detection device.

[0056] In the drawings, similar elements are denoted by the same reference numerals. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0058] The direction terms mentioned in the present application, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only the orientation of the drawings, and the direction terms are used to illustrate and understand the present application, but not to limit the present application.

[0059] The terms "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying relative importance, and are not limited as the order of sequence.

[0060] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0061] The conventional chip testing is mainly manually placing a single chip into a detection device for testing, and then manually classifying and placing the tested chip after testing, which is low in production efficiency and cannot meet the demand of large-scale and efficient production.

[0062] The following is a preferred embodiment of a chip testing machine and a chip loading and unloading device provided by the present application which can solve the above technical problems.

[0063] The preferred embodiment of the present application provides a chip testing machine. Please refer to Figure 1 , the chip testing machine comprises a chip loading and unloading device 1 and a detection device 2. The detection device 2 is used for testing the to-be-tested chip, and the chip loading and unloading device 1 is used for moving the to-be-tested chip to the detection device 2 one by one, and then unloading the tested chip one by one.

[0064] Please refer to Figures 1-8 , the chip loading and unloading device 1 comprises a mounting frame 11, a plurality of boxes 12, a plurality of lifting mechanisms 13, a box changing mechanism 14 and a mechanical hand 15. The mounting frame 11 is provided with a plurality of warehouses 111 along the transverse direction. Each box 12 is used for carrying a plurality of chips, and the plurality of boxes 12 can be arranged in the warehouses 111 along the vertical direction. The plurality of lifting mechanisms 13 are respectively and correspondingly arranged in the plurality of warehouses 111, and the lifting mechanism 13 comprises a lifting disc 131 and a lifting driver 132. The lifting driver 132 is arranged on the mounting frame 11 and connected with the lifting disc 131, and is used for driving the lifting disc 131 to move along the vertical direction, so as to drive the box 12 to rise and fall.

[0065] The box changing mechanism 14 is arranged on one longitudinal side of the magazine 111 and is used to move the box 12 between two magazines 111. The box changing mechanism 14 comprises a box clamping assembly 141 and a transverse driving member 142. The box clamping assembly 141 comprises a box arm 1411, a vertical driving member 1412 and a longitudinal driving member 1413. The box arm 1411 is used to clamp the box 12. The vertical driving member 1412 is connected to the box arm 1411 and is used to drive the box arm 1411 to move vertically. The longitudinal driving member 1413 is connected to the vertical driving member 1412 and is used to drive the vertical driving member 1412 and the box arm 1411 to move longitudinally, so that the box arm 1411 can enter or exit the magazine 111. The transverse driving member 142 is connected to the longitudinal driving member 1413 and is used to drive the box clamping assembly 141 to move transversely, so that the box 12 can be moved to the corresponding magazine 111.

[0066] The robot 15 is arranged on the mounting frame 11 and is used to take and place the chip at the top of the magazine 111 and transfer the chip between the box 12 and the detection device 2.

[0067] In the drawings, the x direction is the transverse direction, the y direction is the longitudinal direction, and the z direction is the vertical direction.

[0068] The chip feeding and discharging device 1 and the chip testing machine of the present application, when working, a stack of material boxes 12 filled with chips to be tested is placed in one of the material bins 111, the lifting driver 132 drives the lifting disc 131 to move upward, thereby lifting the stack of material boxes 12 upward until the uppermost material box 12 reaches the designated position, and the manipulator 15 takes the multiple chips to be tested on the uppermost material box 12 one by one and sends them to the detection device 2 for testing. After the uppermost material box 12 is empty, the transverse driving member 142 drives the material box clamping assembly 141 to move transversely to the material bin 111, the longitudinal driving member 1413 drives the material box arm 1411 to move longitudinally into the material bin 111, the vertical driving member 1412 drives the material box arm 1411 to move vertically downward, and the material box arm 1411 clamps the empty material box 12 and moves upward, moves longitudinally out of the material bin 111, and moves transversely to the other material bin 111 to place the empty material box 12 in the material bin 111. The lifting driver 132 drives the lifting disc 131 to continue moving upward to continue lifting all the material boxes 12 upward until the uppermost material box 12 reaches the designated position, and the cycle operation continues. If the chip testing is completed and the chips are qualified, the manipulator 15 places the qualified chips on the material box 12 in the corresponding material bin 111. After the uppermost material box 12 is filled with qualified chips, the lifting driver 132 drives the lifting disc 131 to move downward, the box changing mechanism 14 places the empty material box 12 on the uppermost part of the lifting disc 131, continues to load the qualified chips, and the cycle operation continues. Similarly, if the chip testing is completed and the chips are unqualified, the manipulator 15 places the unqualified chips on the material box 12 in the corresponding material bin 111. After the uppermost material box 12 is filled with unqualified chips, the lifting driver 132 drives the lifting disc 131 to move downward, the box changing mechanism 14 places the empty material box 12 on the uppermost part of the lifting disc 131, continues to load the unqualified chips, and the cycle operation continues. The chip feeding and discharging device 1 and the chip testing machine of the present application can automatically take the chips to be tested one by one for testing and automatically classify and place the tested chips, thereby improving the production efficiency.

[0069] Please refer to Figure 3 and Figure 4The lifting mechanism 13 is located at the lateral side of the corresponding material bin 111. The bottom of each material bin 111 is provided with a tray 16 which is slidingly connected to the mounting frame 11 in the longitudinal direction. The tray 16 is provided with a clearance gap 161. The tray 16 includes a first position and a second position in its sliding track. When the tray 16 is at the first position, the tray 16 is located in the material bin 111, and the clearance gap 161 is vertically opposite to the lifting disc 131 to avoid the influence of the vertical movement of the tray 16 on the lifting disc 131. When the tray 16 is at the second position, the tray 16 extends to the outside of the material bin 111 and is away from the box changing mechanism 14 relative to the first position. During operation, the tray 16 is pulled from the first position to the second position, and a stack of material boxes 12 filled with chips to be tested can be placed on the tray 16 outside the material bin 111. Then the tray 16 is pushed back to the first position, and the stack of material boxes 12 filled with chips to be tested is located in the material bin 111. By using the above structure, the material boxes 12 filled with chips to be tested can be conveniently placed in the material bin 111. The use method of other material bins 111 is similar to that of the above material bin 111. By using the above structure, the material boxes 12 filled with defective chips and qualified chips can be conveniently taken out of the material bin 111. The lifting mechanism 13 is located at the lateral side of the corresponding material bin 111, which can avoid the influence of the longitudinal movement of the tray 16.

[0070] Please refer to Figure 4 and Figure 9 Each tray 16 is provided with a locking hole 162 which is in the transverse direction. The chip loading and unloading device 1 further includes a plurality of locking devices 17 which include a locking shaft 171 and a locking cylinder 172. The locking shaft 171 moves in the transverse direction at the locking hole 162. The locking cylinder 172 is arranged on the mounting frame 11 and is connected to the locking shaft 171 to drive the locking shaft 171 to move in the transverse direction and in and out of the locking hole 162 to lock or unlock the tray 16 at the first position. After the tray 16 loaded with the material box 12 and moved to the first position, the locking cylinder 172 is used to move the locking shaft 171 into the locking hole 162 to lock the tray 16 at the first position to prevent its longitudinal movement, avoiding the failure of the manipulator 15 to smoothly pick up or place the chip on the material box 12. The locking cylinder 172 drives the locking shaft 171 to move out of the locking hole 162 to unlock the tray 16 at the first position, and the tray 16 can be pulled out without affecting the normal use.

[0071] Please refer to Figure 4The tray 16 comprises a connecting plate 163 and two extension plates 164. The connecting plate 163 extends longitudinally and is slidingly connected to the mounting frame 11. The two extension plates 164 are both connected to the connecting plate 163, are arranged longitudinally spaced apart, and extend transversely, forming a space-avoiding gap 161 between the two extension plates 164. The lifting plate 131 can be lifted upward by the space-avoiding gap 161 formed by the connecting plate 163 and the two extension plates 164, facilitating operation and manufacturing.

[0072] The two extension plates 164 are both provided with corner limiting blocks 165 at the transverse ends thereof, and the four corner limiting blocks 165 are used for limiting the four corners of the magazine 12. By limiting the four corners of the magazine 12 through the four corner limiting blocks 165, the displacement of the magazine 12 can be prevented.

[0073] Please refer to Figure 1 The top of the mounting frame 11 is provided with a working surface 112, the magazine 111 and the magazine changing mechanism 14 are located below the working surface 112, the mechanical arm 15 is arranged on the working surface 112 and located directly above the magazine changing mechanism 14, and the working surface 112 is provided with a magazine opening 1121 corresponding to the position of the magazine 111, which is used for the mechanical arm 15 to take and place the chips. By adopting the above structure, the whole device can have a compact structure.

[0074] Please refer to Figure 1 and Figure 2 The plurality of magazines 111 comprises an empty magazine recycling bin, a chip under test magazine, a qualified chip magazine, a defective chip magazine and an empty magazine loading bin. In this embodiment, the magazine 111 is eight, Figure 1 from left to right in the figure are an empty magazine recycling bin, two chip under test magazines, two qualified chip magazines, two defective chip magazines and an empty magazine loading bin.

[0075] The mechanical arm 15 is two arranged transversely, one of which is used to take the chip under test on the magazine 12 in the chip under test magazine from the corresponding magazine opening 1121, and the other is used to place the qualified chip from the corresponding magazine opening 1121 on the magazine 12 in the qualified chip magazine, and place the defective chip from the corresponding magazine opening 1121 on the magazine 12 in the defective chip magazine.

[0076] In this embodiment, the left mechanical arm 15 is located at the empty magazine recycling bin and the chip under test magazine, and is used to take the chip under test on the magazine 12 in the chip under test magazine from the corresponding magazine opening 1121 and move it to the detection device 2. The right mechanical arm 15 is located at the qualified chip magazine, the defective chip magazine and the empty magazine loading bin, and is used to place the qualified chip from the corresponding magazine opening 1121 of the detection device 2 on the magazine 12 in the qualified chip magazine, and place the defective chip from the corresponding magazine opening 1121 on the magazine 12 in the defective chip magazine.

[0077] Two mechanical hands 15 work simultaneously, which can effectively improve work efficiency.

[0078] Please refer to Figure 6 and Figure 7 The transverse driving member 142 is a linear motor, and the cartridge clamping assembly 141 is two, one of which is used to move the empty cartridge 12 in the to-be-tested chip cartridge to the empty cartridge recycling bin, and the other is used to move the empty cartridge 12 in the empty cartridge feeding bin to the qualified chip cartridge and the defective chip cartridge. By using the linear motor, the two cartridge clamping assemblies 141 can be controlled to operate simultaneously and be controlled respectively. The two cartridge clamping assemblies 141 respectively transfer the cartridges 12 at the feeding and discharging positions, thereby improving work efficiency.

[0079] Please refer to Figure 8 The cartridge arm 1411 includes a mounting plate 14111, a base plate 14112, at least two first clamping assemblies 14113, and at least two second clamping assemblies 14116. The mounting plate 14111 is connected to the vertical driving member 1412. The base plate 14112 is fixed below the mounting plate 14111 and is spaced apart from the mounting plate 14111. The base plate 14112 is square. The first clamping assembly 14113 includes a first clamping jaw 14114 and a first clamping driver 14115. The first clamping jaw 14114 moves in the transverse direction and extends below the base plate 14112. The base plate 14112 is provided with the first clamping jaw 14114 on both sides in the transverse direction. The first clamping driver 14115 is arranged between the base plate 14112 and the mounting plate 14111 and is connected to the first clamping jaw 14114, for driving the first clamping jaw 14114 to move in the transverse direction. The first clamping jaw 14114 on both sides of the base plate 14112 in the transverse direction can clamp both sides of the cartridge 12 in the transverse direction. The second clamping assembly 14116 includes a second clamping jaw 14117 and a second clamping driver 14118. The second clamping jaw 14117 moves in the longitudinal direction and extends below the base plate 14112. The base plate 14112 is provided with the second clamping jaw 14117 on both sides in the longitudinal direction. The second clamping driver 14118 is arranged between the base plate 14112 and the mounting plate 14111 and is connected to the second clamping jaw 14117, for driving the second clamping jaw 14117 to move in the longitudinal direction. The second clamping jaw 14117 on both sides of the base plate 14112 in the longitudinal direction can clamp both sides of the cartridge 12 in the longitudinal direction. The cartridge 12 can be stably clamped by the first clamping jaw 14114 on both sides of the base plate 14112 in the transverse direction and the second clamping jaw 14117 on both sides of the base plate 14112 in the longitudinal direction. The first clamping driver 14115 is arranged between the base plate 14112 and the mounting plate 14111, and the second clamping driver 14118 is arranged between the base plate 14112 and the mounting plate 14111, which can effectively protect the first clamping driver 14115 and the second clamping driver 14118.

[0080] Please refer to Figure 8 The material box arm 1411 further comprises at least four guide blocks 14119, and the four edges of the base plate 14112 are provided with the guide blocks 14119. The guide blocks 14119 protrude downward from the base plate 14112 and are used for guiding the chip material box 12. In operation, the material box arm 1411 moves downward, and the guide blocks 14119 first move to the material box 12. The material box 12 is positioned around by the at least four guide blocks 14119, and the material box 12 is clamped by the cooperation of the at least two first clamping assemblies 14113 and the at least two second clamping assemblies 14116, so that the accuracy of clamping the material box 12 can be improved.

[0081] The working principle of the chip testing machine of the preferred embodiment of the present application is as follows:

[0082] The tray 16 of the chip under test magazine is pulled to the second position, a stack of the magazine 12 filled with the chip under test is placed on the tray 16, and then the tray 16 is pushed to the first position. The lifting driver 132 drives the lifting plate 131 to move upward, so as to lift the stack of the magazine 12 upward until the uppermost magazine 12 reaches the designated position, and the manipulator 15 takes the chip under test on the uppermost magazine 12 to the testing device 2 for testing. After the uppermost magazine 12 is empty, the transverse driving member 142 drives the magazine clamping assembly 141 to move transversely to the chip under test magazine, the longitudinal driving member 1413 drives the magazine arm 1411 to move longitudinally to the chip under test magazine, and the vertical driving member 1412 drives the magazine arm 1411 to move vertically downward. The magazine arm 1411 first guides the magazine 12 through at least four guide blocks 14119, and then clamps the magazine 12 through cooperation of at least two first clamping assemblies 14113 and at least two second clamping assemblies 14116. After the magazine arm 1411 clamps the empty magazine 12, the magazine arm 1411 moves upward, moves longitudinally out of the magazine 111, and moves transversely to the empty magazine recycling magazine, and then the empty magazine 12 is placed into the empty magazine recycling magazine. In the chip under test magazine, the lifting driver 132 drives the lifting plate 131 to continue moving upward, and continues to lift all the magazines 12 upward until the uppermost magazine 12 reaches the designated position, and the cycle operation is continued. If the chip under test is a qualified chip after testing, the manipulator 15 places the qualified chip on the magazine 12 in the qualified chip magazine. After the uppermost magazine 12 is filled with the qualified chip, the lifting driver 132 drives the lifting plate 131 to move downward, the magazine changing mechanism 14 places the empty magazine 12 in the empty magazine upper magazine on the uppermost position of the lifting plate 131, continues to load the qualified chip, and the cycle operation is continued. Similarly, if the chip under test is a defective chip after testing, the manipulator 15 places the defective chip on the magazine 12 in the defective chip magazine. After the uppermost magazine 12 is filled with the defective chip, the lifting driver 132 drives the lifting plate 131 to move downward, the magazine changing mechanism 14 places the empty magazine 12 in the empty magazine upper magazine on the uppermost position of the lifting plate 131, continues to load the unqualified chip, and the cycle operation is continued.

[0083] Thus, the working process of the chip testing machine of the preferred embodiment is completed.

[0084] The chip feeding and discharging device and the chip testing machine of the application, when working, a stack of material boxes filled with chips to be tested is placed in one of the material bins, the lifting driver drives the lifting disc to move upward, thereby lifting the stack of material boxes upward until the uppermost material box reaches the designated position, and the manipulator takes the chip to be tested on the uppermost material box to the detection device for testing. After the uppermost material box is empty, the transverse driving member drives the material box clamping assembly to move transversely to the material bin, the longitudinal driving member drives the material box arm to move longitudinally into the material bin, the vertical driving member drives the material box arm to move vertically downward, the material box arm clamps the empty material box and moves upward, moves out of the material bin along the longitudinal direction, and moves to other material bins along the transverse direction to place the empty material box in the material bin. The lifting driver drives the lifting disc to continue moving upward to continue lifting all the material boxes upward until the uppermost material box reaches the designated position, and the cycle operation is repeated. If the chip testing is completed and the chip is qualified, the manipulator places the qualified chip on the material box in the corresponding material bin. After the uppermost material box is filled with qualified chips, the lifting driver drives the lifting disc to move downward, the box changing mechanism places the empty material box on the uppermost part of the lifting disc, and the cycle operation is repeated. Similarly, if the chip testing is completed and the chip is unqualified, the manipulator places the unqualified chip on the material box in the corresponding material bin. After the uppermost material box is filled with unqualified chips, the lifting driver drives the lifting disc to move downward, the box changing mechanism places the empty material box on the uppermost part of the lifting disc, and the cycle operation is repeated. The chip feeding and discharging device and the chip testing machine of the application can automatically take the chips to be tested one by one for testing and automatically classify and place the tested chips, thereby improving the production efficiency.

[0085] In summary, although the application has been disclosed as above with preferred embodiments, the protection scope of the application is not limited thereto, and any skilled person in the art can make equivalent replacement or change according to the technical concept of the technical solution of the application within the technical range disclosed by the application, which should be covered within the protection scope of the application.

Claims

1. A chip loading and unloading device, characterized in that, The chip loading and unloading device comprises a mounting rack, a plurality of magazine boxes, a plurality of lifting mechanisms, a magazine changing mechanism and a mechanical hand. The mounting rack is provided with a plurality of material bins in the transverse direction. Each of the magazine boxes is used for carrying a plurality of chips, and the plurality of magazine boxes can be arranged in the material bins in the vertical direction. Each of the lifting mechanisms is provided in one-to-one correspondence with the material bins. The lifting mechanism comprises a lifting disc and a lifting driver. The lifting driver is arranged on the mounting rack and connected with the lifting disc, and is used for driving the lifting disc to move in the vertical direction, so as to drive the magazine box to ascend and descend. The magazine changing mechanism is arranged on the longitudinal side of the material bin, and is used for moving the magazine box between two material bins. The magazine changing mechanism comprises a magazine clamping assembly and a transverse driving member. The magazine clamping assembly comprises a magazine arm, a vertical driving member and a longitudinal driving member. The magazine arm is used for clamping the magazine box. The vertical driving member is connected with the magazine arm and is used for driving the magazine arm to move in the vertical direction. The longitudinal driving member is connected with the vertical driving member and is used for driving the vertical driving member and the magazine arm to move in the longitudinal direction, so that the magazine arm enters or exits the material bin. The transverse driving member is connected with the longitudinal driving member and is used for driving the magazine clamping assembly to move in the transverse direction, so that the magazine box moves to the corresponding material bin. The mechanical hand is arranged on the mounting rack and is used for taking and placing chips at the top of the material bin and transferring chips between the magazine box and a detection device. The top of the mounting rack is provided with a working surface. The material bin and the magazine changing mechanism are located below the working surface. The mechanical hand is arranged on the working surface and is located directly above the magazine changing mechanism. The working surface is provided with a material port at a position corresponding to the material bin, which is used for the mechanical hand to take and place chips. The lifting mechanism is located on the transverse side of the corresponding material bin. The bottom of each material bin is provided with a tray. The tray is slidingly connected to the mounting rack in the longitudinal direction. The tray is provided with a position-avoiding gap. The tray comprises a connecting plate and two extension plates. The connecting plate extends in the longitudinal direction and is slidingly connected to the mounting rack. The two extension plates are connected to the connecting plate, are arranged in the longitudinal direction and extend in the transverse direction. The locking hole is in the transverse direction. The chip loading and unloading device further comprises a plurality of locking devices. The locking device comprises a locking shaft and a locking cylinder. The locking shaft moves in the transverse direction at the locking hole. The locking cylinder is arranged on the mounting rack and is connected to the locking shaft. The locking cylinder is used for driving the locking shaft to move in the transverse direction and in and out of the locking hole, so as to lock or unlock the tray in the first position. The magazine arm comprises a mounting plate connected to the vertical driving member. A substrate is fixed below the mounting plate and spaced apart from the mounting plate, and the substrate is square-shaped; At least two first clamping assemblies, each of which comprises a first clamping jaw and a first clamping driver; the first clamping jaw moves in the lateral direction and extends below the substrate, and the substrate is provided with the first clamping jaw on both lateral sides; the first clamping driver is arranged between the substrate and the mounting plate and connected to the first clamping jaw to drive the first clamping jaw to move in the lateral direction, and the first clamping jaw on both lateral sides of the substrate can clamp both lateral sides of the cartridge; At least two second clamping assemblies, each of which comprises a second clamping jaw and a second clamping driver; the second clamping jaw moves in the longitudinal direction and extends below the substrate, and the substrate is provided with the second clamping jaw on both longitudinal sides; the second clamping driver is arranged between the substrate and the mounting plate and connected to the second clamping jaw to drive the second clamping jaw to move in the longitudinal direction, and the second clamping jaw on both longitudinal sides of the substrate can clamp both longitudinal sides of the cartridge; The cartridge arm further comprises at least four guide blocks, each of the four edges of the substrate is provided with the guide block, the guide block protrudes downward from the substrate, and the guide block is used for guiding the cartridge; in operation, the cartridge arm moves downward, the guide block first moves to the cartridge, and the cartridge is positioned by the at least four guide blocks, and then the cartridge is clamped by the cooperation of the at least two first clamping assemblies and the at least two second clamping assemblies.

2. The on-chip material dispensing device of claim 1, wherein The plurality of material bins comprises an empty cartridge recycling bin, a to-be-tested chip bin, a qualified chip bin, a defective chip bin, and an empty cartridge loading bin; the two mechanical arms are arranged in the lateral direction, one of the two mechanical arms is used for taking the to-be-tested chip on the cartridge in the to-be-tested chip bin from the corresponding material port, and the other mechanical arm is used for placing the qualified chip from the corresponding material port on the cartridge in the qualified chip bin and placing the defective chip from the corresponding material port on the cartridge in the defective chip bin.

3. The on-chip material dispensing device of claim 2, wherein The lateral driving member is a linear motor, and the cartridge clamping assembly comprises two cartridge clamping assemblies, one of which is used for moving the empty cartridge in the empty cartridge recycling bin to the empty cartridge loading bin, and the other is used for moving the empty cartridge in the empty cartridge loading bin to the qualified chip bin and the defective chip bin.

4. A chip tester characterized by comprising: The chip loading and unloading device comprises: The chip loading and unloading device according to any one of claims 1-3; And A detection device for testing the to-be-tested chip conveyed by the mechanical arm.

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