Chip testing and screening equipment

Abstract

The present invention discloses a chip testing and screening device, including a support seat, which is arranged in a rectangular structure, and a storage body connected by a support frame is arranged at the top thereof, which is used for storing and stacking chips; and also includes a rotating combing roller, which is arranged inside the storage body, and is used for combing a large number of chips inside the storage body, so as to ensure that a large number of accumulated chips can be neatly combed and arrive at the top of the conveying body for conveying and testing. The chip testing and screening device; when the rotating combing roller rotates inside the storage body, it can rotate and flip the chips accumulated inside the storage body, and as the gripping plate continues to rotate, it will make the chips reach the top of the material guide mechanism along the arc structure between the two gripping plates, so as to ensure that the chips can neatly arrive at the top of the conveying body, and be tested by the three-dimensional scanning test body, so as to achieve the effect of ensuring the accuracy of the test.

Description

Technical Field

[0001] The present invention relates to the technical field related to chip testing, and in particular to a chip testing and screening device. Background Art

[0002] Chip size testing is a key link, which ensures the size accuracy and quality of the chip. Through chip testing, the performance and reliability of the chip can be guaranteed first. Through size testing, it can also help detect and prevent defects in the manufacturing process, ensure that the chip meets the design specifications, and meet customer and industry standards. In addition, precise size control can reduce the scrap rate in the manufacturing process and improve the yield rate. Therefore, after the batch manufacturing of chips is completed, the chip must be tested through screening equipment. The existing testing equipment on the market only places a large number of chips on the top of the conveying mechanism for transmission during testing, and then the chips reach the bottom of the 3D scanning test body for testing;

[0003] After searching, the application number is 202222011607.2. A chip testing and screening platform relates to the technical field of chip production equipment, including conveying equipment and three-dimensional scanning equipment. A screening rack is provided on one side of the front end of the conveying equipment. The three-dimensional scanning equipment is installed on the screening rack, and a bar block is provided in the screening rack. The chip testing and screening platform provided by the present invention is provided with a three-dimensional scanning device to first scan the appearance. If the chip is found to be damaged on the outside, it is directly removed, thereby reducing the pressure of subsequent chip function and performance testing and reducing the packaging cost. The screening platform is provided to transport the chips through the conveying equipment. During the transportation process, the chip structure on the front side of the transmission is used to transport the chips to be tested through the scanning equipment in sequence. There is no need for testers to manually load and classify the chips, which greatly improves the screening efficiency.

[0004] However, the above-mentioned screening device, when the chips arrive in batches above the conveying mechanism, all place the chips in batches, and cannot sort and arrange the chips when the chips arrive on the conveying mechanism. As a result, when the detection is performed under the three-dimensional scanning test body, the chip detection is often incomplete, and when the chips are collected by the external toggle mechanism, large collection errors will occur. Summary of the invention

[0005] The purpose of the present invention is to provide a chip testing and screening device to solve the problem of the screening devices currently on the market proposed in the above background technology. When the chips arrive in batches above the conveying mechanism, the chips are placed in batches. When the batches of chips arrive on the conveying mechanism, the chips cannot be arranged. As a result, when the detection is performed under the three-dimensional scanning test body, the chip detection is often incomplete, and when the chips are collected by an external toggle mechanism, there will be a large collection error.

[0006] To achieve the above object, the present invention provides the following technical solutions: a chip testing and screening device, comprising a support seat, which is arranged in a rectangular structure, and a storage body connected by a support frame is arranged on the top of the support seat, which is used for storing and stacking chips;

[0007] A conveying body, which is arranged at the bottom of the storage body and is used to convey the chips falling from the storage body;

[0008] A three-dimensional scanning test body, which is arranged above the conveying body and is used to test the chips conveyed on the conveying body;

[0009] A screening body, which is arranged outside the three-dimensional scanning test body and is used to select the chips scanned by the three-dimensional scanning test body;

[0010] Also includes;

[0011] The rotating combing roller is arranged inside the storage body and is used to comb a large number of chips inside the storage body to ensure that a large number of accumulated chips can be neatly combed and arrive at the top of the conveying body for conveying testing.

[0012] Preferably, the storage body is in a cylindrical structure, and its exterior is supported and limited by a support frame, and a rotating motor is also provided on the exterior of the storage body, and its top end is connected to the exterior of the rotating combing roller.

[0013] Preferably, a reserved opening is opened at the top of the storage body for the dropping of batches of chips, a material discharge groove is also provided on the outside of the storage body, and a material guiding mechanism which is initially in an inclined state is provided inside the material discharge groove for guiding the chips inside the storage body.

[0014] Preferably, the material guiding mechanism comprises a fixed shaft, a torsion spring, a material guiding plate and a material guiding groove, the two sides of the fixed shaft are fixed on the inner side of the material discharge groove, and a torsion spring is arranged on the outer side thereof and connected to the material guiding plate, the surface of the material guiding plate is provided with material guiding grooves at equal intervals, and the inner side of the material guiding groove is a smooth surface.

[0015] Preferably, the top of one side of the conveying body is arranged at the inner bottom of the material guiding mechanism, and it includes a fixed rod, a driving motor, a rotating roller and a conveyor belt. There are 4 fixed rods, and they are symmetrically arranged in pairs. A rotating roller is arranged between two laterally symmetrical fixed rods, and the top of one of the rotating rollers is coaxially connected to the driving motor. The outside of the two rotating rollers is wrapped with a conveyor belt, and a toggle mechanism is arranged on the outside of the rotating roller biased toward the bottom of the conveying body, which is used to toggle the material guiding mechanism to shake it to ensure that the chips inside the material guiding mechanism fall smoothly.

[0016] Preferably, the surface of the conveyor belt is provided with conveying grooves at equal intervals, and the inside of the conveying grooves is also a smooth surface, and the positions of the conveying grooves correspond to the material guide grooves.

[0017] Preferably, the screening body is arranged at the bottom of the fixed frame, and the screening body includes a rotating plate, a servo motor and an adsorption mechanism, the servo motor is arranged at the middle position of the top of the fixed frame, and the bottom of the servo motor is connected to the center position of the rotating plate, and the rotating plate has a circular structure.

[0018] Preferably, an adsorption mechanism is provided at an outer side position of the rotating plate, and the adsorption mechanism includes a control motor, a rotating shaft, a rotating rod, a telescopic cylinder and a suction plate. The control motor is provided at an outer side position of the rotating plate, and the top end of the control motor is coaxially connected with the rotating shaft, the rotating shaft bearing is penetrated through the bottom of the rotating plate, a rotating rod is connected to the outer side of the rotating shaft, a telescopic cylinder is installed at a lower position of the top end of the rotating rod, and the suction plate is installed at the bottom of the telescopic cylinder, and the size of the rotating rod is larger than two-thirds of the length of the rotating plate.

[0019] Preferably, the toggle mechanism comprises a fixed block, a movable block, a return spring and a connecting spring, the outer side of the fixed block is connected to the outer bottom of the storage body through the connecting spring, a groove is provided inside the fixed block, and the inside of the groove is connected to the movable block through the return spring, and the top of the movable block contacts the bottom of the material guide mechanism;

[0020] The bottom of the toggle mechanism is driven by a rotating cam, and the rotating cam is coaxially connected to the outer two sides of the rotating roller biased toward the bottom of the conveying body.

[0021] Preferably, the rotating combing roller includes four grab plates distributed at equal angles, and the angle between adjacent grab plates is 90 degrees, and the connection positions thereof are in an arc-shaped structure, the top end of the grab plate contacts the inner wall of the storage body, and the top end thereof is in an arc-shaped structure, and engaging grooves are evenly distributed on the surface of the grab plate, and the positions of the engaging grooves correspond to the positions of the material guide grooves, the material guide mechanism is initially in a downward tilted state, and the downward tilt angle thereof is -35°-75°, and a drop opening penetrating from top to bottom is provided on the grab plate between adjacent engaging grooves, which is used to drop excess chips that have not reached the inside of the engaging grooves.

[0022] Compared with the prior art, the beneficial effects of the present invention are: the chip testing and screening device;

[0023] A rotating combing roller is arranged inside the storage body. When the rotating combing roller rotates inside the storage body, it can rotate and flip the chips accumulated inside the storage body. When flipping, since there are evenly distributed engaging grooves on the surface of the gripping plate outside the rotating combing roller, the chip will be engaged with the inside of the engaging groove when flipping. As the gripping plate continues to rotate, the chip will follow the arc structure between the two gripping plates to the top of the material guide mechanism, and then fall to the inside of the conveying groove on the conveying body as the material guide mechanism falls, so as to ensure that the chip can neatly reach the top of the conveying body and be tested by the three-dimensional scanning test body, so as to achieve the effect of ensuring the accuracy of the test;

[0024] The guide groove, the conveying groove and the engaging groove correspond to each other, and the insides of them are all smooth surfaces. At the same time, since a toggle mechanism is provided at the bottom of the guide mechanism, when the conveying body rotates, the rotation of the external rotating cam can make the toggle mechanism continuously toggle the guide mechanism, so that the chip inside the guide mechanism can fall smoothly without jamming, ensuring that the chip can be tested continuously, making the working efficiency of the whole equipment higher;

[0025] The adsorption mechanism is arranged at the bottom of the rotating plate. It can not only rotate with the rotating plate, but also adsorb chips at any position on the conveying body. Therefore, unqualified chips can be adsorbed and recovered in time, thereby performing accurate screening, making the screening accuracy of the entire equipment higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the top view of the structure of the conveying body of the present invention;

[0029] Figure 4 It is a schematic diagram of a partially enlarged structure of the connection between the material guiding mechanism and the toggle mechanism of the present invention;

[0030] Figure 5 This is a schematic diagram of a partially enlarged structure of the top of the conveying body of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the rotating conveying roller inside the storage body of the present invention;

[0032] Figure 7 It is a schematic diagram of a partially enlarged structure of the connection between the material guide mechanism and the material discharge slot of the present invention;

[0033] Figure 8 It is a half-section structural schematic diagram of the material guiding mechanism of the present invention;

[0034] Fig. 9 This is a schematic diagram of the top view of the screening body of the present invention;

[0035] Fig.10 This is a schematic diagram of the structure of the screening body of the present invention when viewed from above.

[0036] In the figure: 1. support seat; 2. support frame; 3. storage body; 31. rotating motor; 32. reserved opening; 33. material guiding mechanism; 331. fixed shaft; 332. torsion spring; 333. material guiding plate; 334. material guiding trough; 34. material unloading trough; 4. conveying body; 41. fixed rod; 42. driving motor; 43. rotating roller; 44. conveyor belt; 441. conveying trough; 5. three-dimensional scanning test body; 6. fixed frame; 7. screening body; 71. rotating plate; 72. servo motor; 73. adsorption mechanism; 731. control motor; 732. rotating shaft; 733. rotating rod; 734. telescopic cylinder; 735. adsorption disk; 8. rotating cam; 9. toggle mechanism; 91. fixed block; 92. movable block; 93. reset spring; 94. connecting spring; 10. rotating combing roller; 101. engaging groove. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-10The present invention provides a technical solution: a chip testing and screening device, comprising a support seat 1, which is arranged in a rectangular structure, and a storage body 3 connected by a support frame 2 is arranged on the top thereof, which is used for storing and stacking chips;

[0039] The conveying body 4 is arranged at the bottom of the storage body 3 and is used to convey the chips dropped from the storage body 3;

[0040] A three-dimensional scanning test body 5, which is arranged above the conveying body 4 and is used to test the chips conveyed on the conveying body 4;

[0041] A screening body 7, which is arranged outside the three-dimensional scanning test body 5 and is used to select the chips scanned by the three-dimensional scanning test body 5;

[0042] Also includes;

[0043] The rotating combing roller 10 is arranged inside the storage body 3 and is used to comb a large number of chips inside the storage body 3 to ensure that a large number of accumulated chips can be neatly combed and arrive at the top of the conveying body 4 for conveying and testing;

[0044] The present application provides a chip testing and screening device with a rotating combing roller 10. First, the chips after batch production are stored in the storage body 3. At this time, it is necessary to control the rotating combing roller 10 to rotate in the opposite direction of the conveying body 4 to ensure that a large number of chips are accumulated in the storage body 3. After the chips are dropped, the rotating combing roller 10 can be rotated in the direction of the conveying body 4, so that after combing the chips, the chips reach the top of the conveying body 4. The sorted chips arrive at the bottom of the three-dimensional scanning test body 5 along with the conveying body 4, and are inspected by the three-dimensional scanning test body 5. After the inspection, the chips arrive at the bottom of the screening body 7, and then the unqualified products are screened out and collected along with the screening body 7 to the inside of the external collection device.

[0045] Among them, according to Figure 6 As shown, the storage body 3 is a cylindrical structure, and its exterior is supported and limited by the support frame 2, and a rotating motor 31 is also provided on the exterior of the storage body 3, and its top end is connected to the exterior of the rotating combing roller 10;

[0046] Specifically, when controlling the rotation of the rotating combing roller 10, it is necessary to start the rotating motor 31 so that it drives the rotating combing roller 10 at its top to rotate.

[0047] Among them, according to Figure 1-2As shown, a reserved opening 32 is provided at the top of the storage body 3 for the dropping of batches of chips. A material discharge slot 34 is also provided on the outside of the storage body 3, and a material guide mechanism 33 which is initially in an inclined state is provided inside the material discharge slot 34 for guiding the chips inside the storage body 3.

[0048] In this application, according to Figure 3 , Figure 6 , Figure 7 and Figure 8 As shown, the material guide mechanism 33 includes a fixed shaft 331, a torsion spring 332, a material guide plate 333 and a material guide groove 334. Both sides of the fixed shaft 331 are fixed to the inner side of the material discharge groove 34, and the outer side thereof is provided with a torsion spring 332 and connected with the material guide plate 333. The surface of the material guide plate 333 is provided with material guide grooves 334 at equal intervals, and the inner side of the material guide groove 334 is a smooth surface.

[0049] Specifically, when the chip is rotated along with the combing roller 10 and tilted to the top of the material guide mechanism 33, the chip will reach the inside of the material guide groove 334 on the material guide mechanism 33, and then reach the top of the conveying body 4 along the material guide groove 334.

[0050] As a further preferred embodiment of this invention, according to Figure 3 and Figure 5 As shown, the top of one side of the conveying body 4 is arranged at the inner bottom of the material guiding mechanism 33, and it includes a fixed rod 41, a driving motor 42, a rotating roller 43 and a conveying belt 44. There are four fixed rods 41, and they are symmetrically arranged in pairs. A rotating roller 43 is arranged between two laterally symmetrically arranged fixed rods 41, and the top of one rotating roller 43 is coaxially connected to the driving motor 42. The conveying belt 44 is wrapped around the outside of the two rotating rollers 43, and a toggle mechanism 9 is arranged on the outside of the rotating roller 43 biased toward the bottom of the conveying body 4, which is used to toggle the material guiding mechanism 33 for shaking to ensure that the chips inside the material guiding mechanism 33 fall smoothly.

[0051] The surface of the conveyor belt 44 is provided with conveying grooves 441 at equal intervals, and the inside of the conveying grooves 441 is also a smooth surface, and the position of the conveying grooves 441 corresponds to the material guide groove 334;

[0052] Specifically, when conveying, it is necessary to start the driving motor 42 so that it drives the rotating roller 43 to rotate. When the rotating roller 43 rotates, the entire conveyor belt 44 is transported, and then the chips inside the conveying groove 441 on the conveyor belt 44 are transported together with the conveyor belt 44 to complete the conveying work.

[0053] As a further preferred embodiment of this invention, when screening, according to Fig. 9 and Fig.10 As shown, the screening body 7 is arranged at the bottom of the fixed frame 6, and the screening body 7 includes a rotating plate 71, a servo motor 72 and an adsorption mechanism 73. The servo motor 72 is arranged at the middle position of the top of the fixed frame 6, and the bottom of the servo motor 72 is connected to the center position of the rotating plate 71, and the rotating plate 71 has a circular structure.

[0054] An adsorption mechanism 73 is provided at the outer side of the rotating plate 71, and the adsorption mechanism 73 includes a control motor 731, a rotating shaft 732, a rotating rod 733, a telescopic cylinder 734 and an adsorption disk 735. The control motor 731 is provided at the outer side of the rotating plate 71, and the top of the control motor 731 is coaxially connected with the rotating shaft 732, the bearing of the rotating shaft 732 is provided through the bottom of the rotating plate 71, the rotating rod 733 is connected to the outer side of the rotating shaft 732, the telescopic cylinder 734 is installed at the lower side of the top of the rotating rod 733, and the adsorption disk 735 is installed at the bottom of the telescopic cylinder 734, and the size of the rotating rod 733 is greater than two-thirds of the length of the rotating plate 71;

[0055] Specifically, after the chip has been tested at the bottom of the three-dimensional scanning test body 5, it is necessary to screen unqualified products through the screening body 7. When selecting, firstly, according to the different positions of the unqualified products, the servo motor 72 is started, so that the servo motor 72 drives the rotating plate 71 at the bottom to rotate. When the rotating plate 71 rotates, it will drive the adsorption mechanism 73 at the bottom to change its position. After reaching the appropriate position, it is necessary to start the control motor 731, so that it drives the rotating shaft 732 at the top to rotate. When the rotating shaft 732 rotates, it will drive the rotating rod 733 to rotate. When the rotating rod 733 rotates, it will drive the telescopic cylinder 734 at the top to reach a fixed position. After that, it is necessary to start the telescopic cylinder 734, so that it drives the adsorption plate 735 at the bottom to move downward and adsorb the unqualified chips. After that, the chips are dropped into the inside of the external collection device for collection through the rotation of the rotating rod 733 and the rotating plate 71 again. In the present application, the adsorption plate 735 is a vacuum adsorption plate 735 disclosed in the existing market.

[0056] As a further preferred embodiment of this invention, according to Figure 4 , Figure 5 and Figure 7 As shown, the toggle mechanism 9 includes a fixed block 91, a movable block 92, a return spring 93 and a connecting spring 94. The outer side of the fixed block 91 is connected to the outer bottom of the storage body 3 through the connecting spring 94. A groove is provided inside the fixed block 91, and the inside of the groove is connected to the movable block 92 through the return spring 93. The top of the movable block 92 contacts the bottom of the material guide mechanism 33.

[0057] The bottom of the toggle mechanism 9 is driven by a rotating cam 8, and the rotating cam 8 is coaxially connected to the outer sides of the rotating roller 43 biased toward the bottom of the conveying body 4;

[0058] Specifically, in order to ensure that the chip does not get stuck during material guiding, the rotating cam 8 rotates when the rotating roller 43 rotates, and its top continuously pushes the bottom of the fixed block 91, so that the fixed block 91 shakes under the action of the connecting spring 94, and the movable block 92 moves under the action of the reset spring 93 during the shaking, so that the movable block 92 continuously squeezes the material guide plate 333, so that the material guide plate 333 continuously shakes under the action of the torsion spring 332, thereby ensuring that the chip does not get stuck inside the material guide slot 334 inside the material guide plate 333.

[0059] As a further preferred embodiment of this invention, according to Figure 6 As shown, the rotating combing roller 10 includes 4 grab plates distributed at equal angles, and the angle between adjacent grab plates is 90 degrees, and the connection positions thereof are in an arc-shaped structure, the top of the grab plate contacts the inner wall of the storage body 3, and the top of the grab plate is arranged in an arc-shaped structure, and the surface of the grab plate is evenly distributed with engaging grooves 101, and the position of the engaging grooves 101 corresponds to the position of the material guide groove 334, the material guide mechanism 33 is initially in a downward tilted state, and its downward tilt angle is -35°-75°, and the grab plates between adjacent engaging grooves 101 are provided with drop openings penetrating from top to bottom, which are used to drop the excess chips that have not reached the inside of the engaging grooves 101;

[0060] In the present application, when the entire rotating combing roller 10 continuously rotates toward the direction of the conveying body 4, the outer gripping plate will flip the chips accumulated at the bottom of the storage body 3, so that the chips can be engaged into the inside of the engaging groove 101, and the chips that are not engaged into the engaging groove 101 will fall back to the bottom of the storage body 3 through the drop opening running through the middle of the gripping plate as the entire gripping plate rotates, and the chips engaged in the engaging groove 101 will reach the top of another gripping plate through the arc structure between adjacent gripping plates as the gripping plate rotates, and then when the top of the other gripping plate corresponds to the top of the material guide mechanism 33, the chips inside the engaging groove 101 will fall to the top of the material guide mechanism 33, and as the material guide mechanism 33 reaches the top of the conveying body 4, the conveying test work is carried out. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0061] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0062] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A chip testing and screening device, comprising: The support seat (1) is arranged in a rectangular structure, and a storage body (3) connected via a support frame (2) is arranged at the top thereof, and is used for storing and stacking chips; A conveying body (4), which is arranged at the bottom of the storage body (3) and is used to convey the chips falling from the storage body (3); A three-dimensional scanning test body (5), which is arranged above the conveying body (4) and is used to perform a test on the chip conveyed on the conveying body (4); A screening body (7), which is arranged outside the three-dimensional scanning test body (5) and is used to select chips scanned by the three-dimensional scanning test body (5); It is characterized in that Also includes; A rotating combing roller (10) is arranged inside the storage body (3) and is used to comb a large number of chips inside the storage body (3) to ensure that the large number of accumulated chips can be neatly combed and arrive at the top of the conveying body (4) for conveying and testing; The storage body (3) is in a cylindrical structure, and its exterior is supported and limited by a support frame (2). A rotating motor (31) is also provided on the exterior of the storage body (3), and its top end is connected to the exterior of a rotating combing roller (10); A reserved opening (32) is provided at the top of the storage body (3) for the dropping of batches of chips, a material discharge slot (34) is also provided on the outside of the storage body (3), and a material guide mechanism (33) which is initially in an inclined state is provided inside the material discharge slot (34) for guiding the chips inside the storage body (3); The material guide mechanism (33) comprises a fixed shaft (331), a torsion spring (332), a material guide plate (333) and a material guide groove (334); two sides of the fixed shaft (331) are fixed to the inner side of the material discharge groove (34); a torsion spring (332) is arranged on the outer side thereof and connected to the material guide plate (333); the surface of the material guide plate (333) is provided with material guide grooves (334) at equal intervals, and the inner side of the material guide grooves (334) is a smooth surface; The rotating combing roller (10) comprises four grab plates distributed at equal angles, and the angle between adjacent grab plates is 90 degrees, and the connection positions thereof are in an arc-shaped structure, the top end of the grab plate contacts the inner wall of the storage body (3), and the top end thereof is in an arc-shaped structure, the surface of the grab plate is evenly distributed with engaging grooves (101), and the position of the engaging grooves (101) corresponds to the position of the material guide groove (334), the material guide mechanism (33) is initially in a downwardly inclined state, and its downwardly inclined angle is -35°-75°, and the grab plates between adjacent engaging grooves (101) are provided with drop openings penetrating from top to bottom, for dropping excess chips that have not reached the inside of the engaging grooves (101) 2. A chip testing and screening device according to claim 1, characterized in that: The top end of one side of the conveying body (4) is arranged at the inner bottom of the material guide mechanism (33), and the conveying body (4) comprises a fixed rod (41), a driving motor (42), a rotating roller (43) and a conveying belt (44). Four fixed rods (41) are arranged, and they are arranged symmetrically in pairs. A rotating roller (43) is arranged between two fixed rods (41) arranged symmetrically in the transverse direction, and the top end of one rotating roller (43) is coaxially connected to the driving motor (42). The outside of the two rotating rollers (43) is wrapped with a conveying belt (44), and a toggle mechanism (9) is arranged on the outer side of the rotating roller (43) biased towards the bottom of the conveying body (4) for toggle the material guide mechanism (33) to perform a shaking operation, thereby ensuring that the chips inside the material guide mechanism (33) fall smoothly.

3. A chip testing and screening device according to claim 2, characterized in that: The surface of the conveyor belt (44) is provided with conveying grooves (441) at equal intervals, and the interior of the conveying grooves (441) is also a smooth surface, and the positions of the conveying grooves (441) correspond to the material guide grooves (334).

4. The chip testing and screening device according to claim 1, characterized in that: The screening body (7) is arranged at the bottom of the fixed frame (6), and the screening body (7) comprises a rotating plate (71), a servo motor (72) and an adsorption mechanism (73); the servo motor (72) is arranged at the middle position of the top end of the fixed frame (6), and the bottom of the servo motor (72) is connected to the center position of the rotating plate (71), and the rotating plate (71) is in a circular structure.

5. A chip testing and screening device according to claim 4, characterized in that: An adsorption mechanism (73) is arranged at a position slightly outside the rotating plate (71), and the adsorption mechanism (73) comprises a control motor (731), a rotating shaft (732), a rotating rod (733), a telescopic cylinder (734) and an adsorption disk (735). The control motor (731) is arranged at a position slightly outside the rotating plate (71), and the top end of the control motor (731) is coaxially connected to the rotating shaft (732). The bearing of the rotating shaft (732) is arranged through the bottom of the rotating plate (71). The rotating rod (733) is connected to the outside of the rotating shaft (732). The telescopic cylinder (734) is installed slightly below the top end of the rotating rod (733), and the adsorption disk (735) is installed at the bottom of the telescopic cylinder (734). The size of the rotating rod (733) is greater than two thirds of the length of the rotating plate (71).

6. A chip testing and screening device according to claim 2, characterized in that: The toggle mechanism (9) comprises a fixed block (91), a movable block (92), a return spring (93) and a connecting spring (94); the outer side of the fixed block (91) is connected to the outer bottom of the storage body (3) via the connecting spring (94); a groove is provided inside the fixed block (91); the inside of the groove is connected to the movable block (92) via the return spring (93); the top end of the movable block (92) is in contact with the bottom of the material guiding mechanism (33); The bottom of the toggle mechanism (9) is driven by a rotating cam (8), and the rotating cam (8) is coaxially connected to positions on both sides of the outside of a rotating roller (43) biased toward the bottom of the conveying body (4).

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