Product counting device and chip testing equipment

Abstract

The present invention provides a product counting device and chip testing equipment, the product counting device includes a tray transmission mechanism, which is used to transport trays filled with products to be tested, and the transmission direction of the tray transmission mechanism is set along the Y axis; an appearance inspection mechanism is arranged above the tray transmission mechanism, and is used to confirm the number of products, check the appearance and placement direction of the products; a replenishment transmission mechanism, which is used to transport the replenishment tray, and the transmission direction of the replenishment transmission mechanism is set along the Y axis; and a gripping mechanism, which is used to remove defective products and grab products from the replenishment tray on the replenishment transmission mechanism to fill the tray on the tray transmission mechanism, and the gripping mechanism includes an X-axis moving module and a gripping assembly arranged on the X-axis moving module. The product counting device and chip testing equipment provided by the present invention realize automatic counting, detection and replenishment of products, greatly reduce labor costs, reduce the occurrence of false detection and missed detection, and improve shipment quality.

Description

Technical Field

[0001] The present invention belongs to the technical field of chip testing, and more specifically, relates to a product counting device and chip testing equipment. Background Art

[0002] Before the chips are shipped, they need to be inspected, including electrical tests and appearance tests. Currently, the appearance inspection of chips uses manual visual inspection to count the chips, check whether there are defects on the outer surface of the chips, whether there is a lack of material in the tray, whether the product is placed in the correct direction, etc., to ensure the correct shipment quantity. However, the manual visual inspection method has low reliability, often misses the inspection, and the labor cost is high. Especially when the shipment volume is large, it is more likely to be misdetected or missed, resulting in incorrect shipment quantity or defective products. Summary of the invention

[0003] The purpose of the embodiments of the present invention is to provide a product counting device and a chip testing device to solve the technical problems existing in the prior art of low reliability and high labor intensity of manual counting and inspection.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a product counting device, comprising:

[0005] A tray conveying mechanism, used for conveying a tray filled with products to be inspected, wherein the conveying direction of the tray conveying mechanism is arranged along the Y axis;

[0006] An appearance inspection mechanism is disposed above the tray transmission mechanism and is used to confirm the quantity of products and inspect the appearance and placement direction of the products;

[0007] A material replenishment transmission mechanism, used for transporting the material replenishment tray, wherein the transmission direction of the material replenishment transmission mechanism is arranged along the Y axis; and

[0008] The grabbing mechanism is used to remove defective products and grab products from the replenishing tray on the replenishing transmission mechanism to fill the tray on the tray transmission mechanism. The grabbing mechanism includes an X-axis moving module and a grabbing component arranged on the X-axis moving module.

[0009] In one embodiment, the material grabbing assembly includes a material grabbing mounting plate, a material grabbing cylinder, a connecting frame, a nozzle body fixed to the connecting frame, and a nozzle seat for the nozzle body to pass through, the nozzle seat is fixed to the material grabbing mounting plate, the cylinder shaft of the material grabbing cylinder is slidably connected to the connecting frame, and a buffer is elastically connected between the cylinder shaft and the connecting frame.

[0010] In one embodiment, a grabbing slide rail is fixed on the grabbing mounting plate, a grabbing slider is fixed on the connecting frame, and the grabbing slider is slidably connected to the grabbing slide rail.

[0011] In one embodiment, the X-axis moving module includes an X-axis mounting plate, an X-axis motor, an X-axis screw driven by the X-axis motor, an X-axis nut block threadedly connected to the X-axis screw, an X-axis slider fixed to the X-axis nut block, and an X-axis slide rail fixed to the X-axis mounting plate, and the X-axis slider is slidably connected to the X-axis slide rail.

[0012] In one embodiment, the feeding transmission mechanism includes a feeding motor, a feeding screw, a feeding nut block threadedly connected to the feeding screw, a feeding slider fixed to the feeding nut block, and a feeding slide rail for sliding the feeding slider.

[0013] In one embodiment, the appearance inspection mechanism includes a lens holder, a camera fixed to the lens holder, and a light source for illuminating the product on the tray moving mechanism.

[0014] In one embodiment, the tray transmission mechanism comprises:

[0015] A tray layering mechanism, comprising a first lifting assembly for lifting and lowering stacked trays and a first supporting assembly for separating the bottom tray from other trays;

[0016] a tray moving mechanism, used for conveying the trays separated from the tray stratification mechanism; and

[0017] The tray stacking mechanism is used to stack the trays transported by the tray moving mechanism. The tray stacking mechanism includes a second supporting assembly for supporting the stacked trays and a second lifting assembly for pushing the trays on the tray moving mechanism to the bottom of the stacked trays.

[0018] In one embodiment, the tray moving mechanism includes a transmission drive, a carrier tray driven by the transmission drive and used to place the tray, a clamping assembly for clamping the tray in the carrier tray, and a guide rail structure for guiding the tray.

[0019] In one embodiment, the clamping assembly includes a hook cylinder fixed to the supporting plate, a hook body connected to the output end of the hook cylinder and used to clamp and fix the material tray, and a hook pin that enables the hook body to be rotatably connected to the supporting plate.

[0020] The present invention also provides a chip testing device, comprising the above-mentioned product counting device.

[0021] The beneficial effects of the product counting device and chip testing equipment provided by the present invention are as follows: compared with the prior art, the product counting device of the present invention includes a tray transmission mechanism, an appearance inspection mechanism, a refill transmission mechanism and a grabbing mechanism. The tray moving mechanism transports the tray to the bottom of the appearance inspection mechanism. The appearance inspection mechanism counts and inspects the products on the tray. If there are products with missing materials, appearance defects or wrong orientation, the grabbing mechanism removes the products with appearance defects or wrong orientation, and grabs the products from the refill tray of the refill transmission mechanism to fill the tray on the tray moving mechanism. In this way, automatic counting, inspection and refilling of products are realized, which greatly reduces labor costs, reduces the occurrence of false detection and missed detection, and improves the quality of shipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A three-dimensional structural diagram of a product counting device provided by an embodiment of the present invention;

[0024] Figure 2 A three-dimensional structural diagram of the appearance inspection mechanism and the grasping mechanism provided in the embodiment of the present invention;

[0025] Figure 3 A three-dimensional structural diagram of a grabbing assembly provided in an embodiment of the present invention;

[0026] Figure 4 A three-dimensional structural diagram of a feeding transmission mechanism provided in an embodiment of the present invention;

[0027] Figure 5 A three-dimensional structural diagram of a tray transmission mechanism provided in an embodiment of the present invention;

[0028] Figure 6 A three-dimensional structural diagram of a first lifting assembly provided in an embodiment of the present invention;

[0029] Figure 7 A three-dimensional structural diagram of a tray moving mechanism provided in an embodiment of the present invention;

[0030] Figure 8 A three-dimensional structural diagram of a carrier plate and a clamping assembly provided in an embodiment of the present invention;

[0031] Fig. 9 An exploded structural diagram of a carrier plate and a clamping assembly provided in an embodiment of the present invention;

[0032] Fig.10 A three-dimensional structural diagram of a second lifting assembly provided in an embodiment of the present invention.

[0033] Among them, the reference numerals in the figure are:

[0034] 1-tray transmission mechanism; 11-tray layering mechanism; 111-first lifting assembly; 1111-lifting motor; 1112-pulley assembly; 1113-lifting screw; 1114-first lifting bracket; 11141-first lifting bottom plate; 11142-second support column; 11143-first push-up plate; 1115-lifting mounting plate; 1116-first support column; 112-first supporting assembly; 1121-first telescopic cylinder; 113-first positioning structure; 1131-first positioning column; 1132-first height sensor ;12-tray moving mechanism;121-transmission drive;1211-transmission motor;1212-transmission screw rod;1213-transmission nut seat;122-carrying plate;1221-baffle;1222-claw gap;123-clamping assembly;1231-claw cylinder;12310-annular groove;1232-claw body;12321-connecting part;123210-strip hole;12322-claw part;1233-claw pin;124-guide rail structure;1241-track seat;1242-guide rail body;13- Tray stacking mechanism; 131-second lifting assembly; 1311-lifting cylinder; 1312-second lifting bracket; 13121-second lifting bottom plate; 13122-third support column; 13133-second push-up plate; 132-second supporting assembly; 1321-second telescopic cylinder; 133-second positioning structure; 1331-second positioning column; 1332-second height sensor; 2-appearance inspection mechanism; 21-lens bracket; 22-camera; 23-light source; 3-feeding transmission mechanism; 31-feeding motor; 32-feeding screw ;33-feeding nut block;34-feeding slider;35-feeding slide rail;4-grabbing mechanism;41-X-axis moving module;411-X-axis motor;412-X-axis screw rod;413-X-axis nut block;414-X-axis slider;415-X-axis slide rail;416-X-axis mounting plate;42-grabbing assembly;421-grabbing mounting plate;422-grabbing cylinder;423-connecting frame;424-buffer;425-nozzle body;426-nozzle seat;427-grabbing slide rail;428-grabbing slider;5-working base plate;6-column. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0037] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] The product counting device provided in the embodiment of the present invention is now described.

[0040] In one embodiment of the present invention, see Figure 1 and Figure 2The product counting device includes a tray transmission mechanism 1, an appearance inspection mechanism 2, a refill transmission mechanism 3 and a grabbing mechanism 4. The transmission direction of the tray transmission mechanism 1 is set along the Y-axis, and is used to transmit the tray in the Y-axis direction. The tray on the tray transmission mechanism 1 is loaded with the product to be inspected. The appearance inspection mechanism 2 is set above the tray transmission mechanism 1. More specifically, the place where the tray transmission mechanism 1 and the appearance inspection mechanism 2 are opposite to each other is the inspection position. When the tray is transported to the inspection position, the appearance inspection mechanism 2 counts and inspects the tray to determine whether there is an empty position in the tray, and whether the product has appearance defects, whether the product placement direction is correct, etc. The refill transmission mechanism 3 is used to transport the refill tray, which is filled with qualified products. The transmission direction of the refill transmission mechanism 3 is set along the Y-axis, parallel to the direction of the tray transmission mechanism 1, and is used to transport the refill tray to the position of the grabbing mechanism 4. The grabbing mechanism 4 includes an X-axis moving module 41 and a grabbing assembly 42. The grabbing assembly 42 is arranged on the X-axis moving module 41 and is driven by the X-axis moving module 41 to move in the X-axis direction, so that the grabbing assembly 42 can move between the replenishing transmission mechanism 3 and the tray transmission mechanism 1. More specifically, when the appearance inspection mechanism 2 detects that there is a shortage of material on the tray, the grabbing assembly 42 moves to the replenishing transmission mechanism 3, grabs qualified products and then moves to the tray transmission mechanism 1 to fill the qualified products into the shortage position. When the appearance inspection mechanism 2 detects that the product on the tray is defective or the product is placed upside down, the grabbing assembly 42 first removes the defective product and the product placed in the wrong direction from the tray, and then moves the grabbing assembly 42 to the replenishing transmission mechanism 3 to grab qualified products and fill the qualified products into the shortage position. In this way, automatic counting, detection and replenishment of products are realized, and the automation degree of chip detection is improved.

[0041] The product counting device in the above embodiment includes a tray transmission mechanism 1, an appearance inspection mechanism 2, a refilling transmission mechanism 3 and a grabbing mechanism 4. The tray transmission mechanism 1 transports the tray to the bottom of the appearance inspection mechanism 2, and the appearance inspection mechanism 2 counts and inspects the products on the tray. If there are products with missing materials, appearance defects or wrong orientation, the grabbing mechanism 4 removes the products with appearance defects or wrong orientation, and grabs products from the refilling tray of the refilling transmission mechanism 3 to fill the tray on the tray transmission mechanism 1. In this way, automatic counting, inspection and refilling of products are realized, which greatly reduces labor costs, reduces the occurrence of false detection and missed detection, and improves the quality of shipment.

[0042] In one embodiment of the present invention, see Figure 3The material grabbing assembly 42 includes a material grabbing mounting plate 421, a material grabbing cylinder 422, a connecting frame 423, a nozzle body 425 and a nozzle seat 426. The material grabbing mounting plate 421 is fixed to the moving end of the X-axis moving module 41. The material grabbing cylinder 422 is fixed on the material grabbing mounting plate 421, the connecting frame 423 is slidably connected to the cylinder shaft of the material grabbing cylinder 422, the nozzle body 425 is fixedly connected to the connecting frame 423, and a buffer 424 is elastically connected between the cylinder shaft and the connecting frame 423. In this way, when the nozzle body 425 moves downward and touches the product under the drive of the material grabbing cylinder 422, the buffer 424 is compressed, which can reduce the reverse thrust on the cylinder shaft and avoid damage to the material grabbing cylinder 422. The buffer 424 can be a spring. The cylinder shaft has a stop step, and the buffer 424 is sleeved on the cylinder shaft, one end of the buffer 424 abuts against the stop step, and the other end of the buffer 424 abuts against the connecting frame 423. The connecting frame 423 is provided with a sliding hole, and the cylinder shaft is arranged through the sliding hole, so that the connecting frame 423 is slidably connected to the cylinder shaft, and can be displaced relative to the cylinder shaft to buffer the thrust on the cylinder shaft.

[0043] The nozzle seat 426 is fixed on the material grabbing mounting plate 421, and the nozzle body 425 is arranged through the nozzle seat 426. The arrangement of the nozzle seat 426 can make the nozzle body 425 more stable when moving up and down, and the nozzle seat 426 has a guiding effect on the nozzle body 425. The nozzle seat 426 is provided with a shaft sleeve hole, and a shaft sleeve is arranged in the shaft sleeve hole, and the nozzle body 425 is arranged through the shaft sleeve.

[0044] Optionally, a grabbing slide rail 427 is fixed on the grabbing mounting plate 421, and a grabbing slider 428 is fixed on the connecting frame 423. The grabbing slider 428 is slidably connected to the grabbing slide rail 427. The length direction of the grabbing slide rail 427 is set along the Z axis. The setting of the grabbing slide rail 427 and the grabbing slider 428 can guide the movement of the suction nozzle body 425 to ensure the stability of the suction nozzle body 425 when it moves up and down.

[0045] In one embodiment of the present invention, see Figure 2The X-axis moving module 41 includes an X-axis mounting plate 416, an X-axis motor 411, an X-axis screw rod 412, an X-axis nut block 413, an X-axis slider 414 and an X-axis slide rail 415. The X-axis motor 411 can be fixed on the X-axis mounting plate 416. The X-axis motor 411 is used to drive the X-axis screw rod 412 to rotate, the X-axis nut block 413 is threadedly connected to the X-axis screw rod 412, the X-axis slider 414 is slidably connected to the X-axis slide rail 415, and the X-axis slide rail 415 can be fixed on the X-axis mounting plate 416, and the X-axis nut block 413 and the X-axis slider 414 are fixedly connected, so that the X-axis nut block 413 and the X-axis slider 414 move synchronously to guide the X-axis nut block 413. The X-axis nut block 413 and the X-axis slider 414 can be specifically fixed on the material grabbing mounting plate 421 of the material grabbing assembly 42. When the X-axis motor 411 is working, the X-axis screw rod 412 rotates, driving the X-axis nut block 413 to move. Under the guidance of the X-axis slide rail 415, the X-axis nut block 413 moves along the X-axis, realizing the movement of the material grabbing assembly 42 between the material replenishment transmission mechanism 3 and the material tray transmission mechanism 1.

[0046] Optionally, the product counting device further comprises a working base plate 5 and two columns 6, and the two columns 6 are fixed on the working base plate 5. The tray transmission mechanism 1 and the replenishing transmission mechanism 3 are both fixed on the working base plate 5. Both ends of the X-axis moving module 41 are respectively fixed on the two columns 6, and the appearance inspection mechanism 2 can be fixed on the X-axis moving module 41.

[0047] In one embodiment of the present invention, see Figure 2 , the appearance inspection mechanism 2 includes a lens bracket 21, a camera 22 and a light source 23. The lens bracket 21 can be fixed on the X-axis mounting plate 416 of the X-axis moving module 41. The camera 22 is fixed on the lens bracket 21, and the light source 23 is used to illuminate the products on the tray transmission mechanism 1, so that the camera 22 can take pictures of the products on the tray. The light source 23 can be fixed to the lens bracket 21, and can also be fixed to the camera 22. Specifically, when the tray moves to the bottom of the camera 22, the camera 22 takes pictures of the tray, analyzes the pictures taken, and checks whether there is leakage, appearance defects, or the product is placed upside down in the photographing area.

[0048] In one embodiment of the present invention, see Figure 4The feeding transmission mechanism 3 is arranged on one side of the material tray transmission mechanism 1, and the feeding transmission mechanism 3 includes a feeding motor 31, a feeding screw 32, a feeding nut block 33, a feeding slider 34 and a feeding slide rail 35. The feeding motor 31 drives the feeding screw 32 to rotate, the feeding nut block 33 is threadedly connected to the feeding screw 32, and the feeding slider 34 is slidably connected to the feeding slide rail 35, which is used to guide the feeding slider 34. The feeding tray is placed on the feeding nut block 33 and moves along the Y axis with the feeding nut block 33. After a row of products facing the grabbing mechanism 4 is taken, the feeding motor 31 drives the feeding tray to move along the Y axis, so that the products move to face the grabbing mechanism 4.

[0049] In one embodiment of the present invention, see Figure 5 The tray transmission mechanism 1 includes a tray stratification mechanism 11, a tray moving mechanism 12 and a tray stacking mechanism 13. The tray stratification mechanism 11 is used to separate the bottom tray in the stacked trays to the tray moving mechanism 12, without the need for manual separation of the trays, which can improve the degree of automation of the tray transmission device. Specifically, the tray stratification mechanism 11 includes a first lifting component 111 and a first supporting component 112. The stacked trays are placed on the first lifting component 111. The first lifting component 111 can drive the stacked trays to move up and down. The first supporting component 112 is used to support the other trays except the bottom tray, so that the bottom tray can be separated from the other trays. When the bottom tray needs to be separated, the first lifting assembly 111 raises or lowers the stacked trays to a predetermined height, and the first supporting assembly 112 supports the other trays except the bottom tray, so that only one tray is left on the first lifting assembly 111. The first lifting assembly 111 descends and drops the tray onto the supporting tray 122 of the tray moving mechanism 12, thereby separating the bottom tray from the other trays. Figure 6 The tray moving mechanism 12 transports the trays separated by the tray stratification mechanism 11 to the testing station for the testing mechanism to take the materials, and then transports the empty trays to the tray stacking mechanism 13 for stacking.

[0050] Optionally, the tray moving mechanism 12 includes a transmission drive 121, a carrier tray 122, a clamping assembly 123 and a guide rail structure 124. The carrier tray 122 is used to place the tray, and the carrier tray 122 is connected to the moving end of the transmission drive 121. The transmission drive 121 drives the carrier tray 122 to move between the tray layering mechanism 11 and the tray stacking mechanism 13, so that the tray can be transported. When the tray is placed on the carrier tray 122, the clamping assembly 123 can clamp the tray to prevent the tray from tipping over from the carrier tray 122. The guide rail structure 124 is used to guide the tray to make the transportation of the tray smoother. The tray stacking mechanism 13 is used to stack empty trays without manual stacking, which can improve the automation of the tray transmission device. Specifically, the tray stacking mechanism 13 includes a second supporting assembly 132 and a second lifting assembly 131. The second supporting assembly 132 is used to support the already stacked trays, and the second lifting assembly 131 is used to push the transferred trays to the bottom layer of the already stacked trays. Specifically, the second supporting assembly 132 pushes the already stacked trays to a predetermined position, so that the bottom of the already stacked trays is vacant, the tray moving mechanism 12 transfers the vacant trays to the tray stacking mechanism 13 (below the already stacked trays), the second lifting assembly 131 rises, and pushes the vacant trays to the bottom of the already stacked trays, the second supporting assembly 132 releases the trays, the second lifting assembly 131 continues to rise to the height of a tray, and the second supporting assembly 132 supports the trays again, so that the vacant trays can be stacked in sequence.

[0051] In one embodiment of the present invention, see Figure 6, the first lifting assembly 111 includes a lifting motor 1111, a pulley assembly 1112, a lifting screw 1113 and a first lifting bracket 1114. The lifting motor 1111 can be a servo motor, which outputs a rotational motion. One of the pulleys of the pulley assembly 1112 is fixed to the output end of the lifting motor 1111, and the other pulley of the pulley assembly 1112 is fixedly connected to the lifting screw 1113. The first lifting bracket 1114 is threadedly connected to the lifting screw 1113, and the guide column is used to guide the movement of the first lifting bracket 1114. When the lifting motor 1111 is working, the lifting screw 1113 can rotate accordingly. When the lifting screw 1113 rotates, the first lifting bracket 1114 moves up and down under the guidance of the guide column. When the tray is placed on the first lifting bracket 1114, it can move up and down with the first lifting bracket 1114. Among them, the movement of the output end of the lifting motor 1111 can be controlled more accurately than that of the cylinder, and the cooperation between the lifting cylinder 1311 and the lifting screw 1113 can further improve the displacement accuracy of the first lifting bracket 1114, prevent the stacking tray from being lifted or lowered, and ensure that the first supporting assembly 112 can be accurately clamped on the side of the stacking tray. The setting of the pulley assembly 1112 allows the lifting screw 1113 and the lifting motor 1111 to be set on different axes, which facilitates the layout of the first lifting assembly 111. In other embodiments, the pulley assembly 1112 in the first lifting assembly 111 can also be replaced by a sprocket assembly, a gear assembly, or other structures.

[0052] Optionally, see Figure 6 The first lifting assembly 111 further includes a lifting installation plate 1115, and the lifting motor 1111 and the pulley assembly 1112 are both installed on the lifting installation plate 1115. More specifically, the lifting motor 1111 is fixed to the top surface of the lifting installation plate 1115, and the pulley assembly 1112 is fixed to the bottom surface of the lifting installation plate 115, so that the height space used by the lifting motor 1111 can overlap with the height space used by the lifting screw 113, which will not increase the volume of the first lifting assembly 111, and can make the structure of the first lifting assembly 111 more compact.

[0053] Optionally, see Figure 5 and Figure 6 The first lifting assembly 111 further includes a first support column 1116, one end of which is fixed to the lifting installation plate 1115, and the other end of the first support column 1116 is fixed to the guide rail structure 124, so that the lifting installation plate 1115 can be stably installed on the guide rail structure 124. The number and distribution of the first support columns 1116 are not limited here. The number of the first support columns 1116 can be selected as four, which are supported between the guide rail structure 124 and the lifting installation plate 1115.

[0054] Optionally, see Figure 5and Figure 6 , the first lifting bracket 1114 is slidably connected to the guide rail structure 124, so that the movement of the first lifting bracket 1114 is smoother. More specifically, the first lifting bracket 1114 includes a first lifting bottom plate 11141, a second support column 11142 and a first push-up plate 11143. The first lifting bottom plate 11141 is threadedly connected to the lifting screw 1113, and the two ends of the second support column 11142 are respectively fixedly connected to the first push-up plate 11143 and the second lifting bottom plate 13121, and the second support column 11142 is slidably connected to the guide rail structure 124. The first push-up plate 11143 is used to push and support the material tray. Optionally, the number of the first push-up plates 11143 is two. When the carrier plate 122 moves to the top of the first lifting assembly 111, the two first push-up plates 11143 are respectively located on both sides of the carrier plate 122 to avoid interference with the carrier plate 122. At least one second support column 11142 is fixed to each first push-up plate 11143 , and two or more second support columns 11142 may also be fixed to each first push-up plate 11143 .

[0055] In one embodiment of the present invention, see Figure 7 , the first supporting assembly 112 includes at least four first telescopic cylinders 1121, and at least two first telescopic cylinders 1121 are respectively provided on opposite sides of the stacked material tray. When the first supporting assembly 112 includes four first telescopic cylinders 1121, two of the first telescopic cylinders 1121 are provided on one side of the stacked material tray, and the other two first telescopic cylinders 1121 are provided on the other side of the stacked material tray, so that at least two first telescopic cylinders 1121 are provided on the clamped side of the stacked material tray to ensure the stability of the clamped material tray. Optionally, when it is necessary to separate the bottommost material tray, the first telescopic cylinder 1121 extends a locking tongue, so that the locking tongue is inserted between the bottommost material tray and the penultimate material tray, so that the bottommost material tray can be separated from the stacked material tray. Alternatively, when it is necessary to separate the bottommost material tray, the first telescopic cylinder 1121 extends a push rod, and the push rod is extended to abut against the side wall of the penultimate material tray, so that the bottommost material tray can also be separated from the stacked material tray.

[0056] Optionally, the first telescopic cylinder 1121 may be fixed on the guide rail body 1242 of the guide rail structure 124 .

[0057] Optionally, see Figure 7The tray layering mechanism 11 also includes a first positioning structure 113, which is used to position the stacked trays stacked above the first lifting assembly 111. The first positioning structure 113 includes four first positioning columns 1131, and the cross-section of the first positioning column 1131 is L-shaped, or the cross-section of the first positioning column 1131 has an L-shaped recess. The four first positioning columns 1131 can form a frame-shaped space to limit the four corners of the tray. The first positioning column 1131 can be fixed on the guide rail structure 124. A first height sensor 1132 is provided on at least one first positioning column 1131, which is used to detect the number of stacked trays above the first lifting assembly 111. When the number of trays reaches the set minimum value, an alarm can be sounded to prompt the staff to put in a new tray.

[0058] In one embodiment of the present invention, see Figure 7 In the tray moving mechanism 12, the guide rail structure 124 includes a track seat 1241 and two guide rail bodies 1242. The two guide rail bodies 1242 are arranged at intervals to form a channel for the tray to pass through. When the tray is transported, the opposite sides of the tray are placed on the two guide rail bodies 1242 respectively. More specifically, the guide rail body 1242 has a positioning step, the edge of the tray is placed on the top surface of the positioning step, and the side of the tray abuts against the side of the positioning step, so that the tray is guided and the tray is more stable during movement.

[0059] Optionally, the first telescopic cylinder 1121 is fixed to the guide rail body 1242. When the number of the first telescopic cylinders 1121 of the first supporting assembly 112 is four, two of the first telescopic cylinders 1121 are fixed to one of the guide rail bodies 1242, and the other two of the first telescopic cylinders 1121 are fixed to the other guide rail body 1242. The first positioning structure 113 is fixed to the guide rail body 1242. When the number of the first positioning columns 1131 is four, two of the first positioning columns 1131 are fixed to one of the guide rail bodies 1242, and the other two of the first positioning columns 1131 are fixed to the other guide rail body 1242. Optionally, one end of the first support column 1116 is fixed to the track seat 1241, and the second support column 11142 is slidably connected to the track seat 1241.

[0060] Optionally, see Figure 7The transmission drive member 121 includes a transmission motor 1211, a transmission screw rod 1212 and a transmission nut seat 1213. The transmission screw rod 1212 is fixed to the output shaft of the transmission motor 1211. The transmission screw rod 1212 can be fixedly connected to the output shaft through a coupling. The transmission nut seat 1213 is threadedly connected to the transmission screw rod 1212, and the carrier plate 122 is fixed on the transmission nut seat 1213. When the transmission motor 1211 is working, it outputs a rotational motion to rotate the transmission screw rod 1212. When the transmission screw rod 1212 rotates, the transmission nut seat 1213 and the carrier plate 122 move axially along the transmission screw rod 1212, so that the carrier plate 122 moves between the material tray layering mechanism 11 and the material tray stacking mechanism 13. The transmission of the material tray through the transmission screw rod 1212 can make the material tray displacement accuracy higher. The transmission motor 1211 and the transmission screw rod 1212 can be installed on the track seat 1241.

[0061] In one embodiment of the present invention, the number of clamping assemblies 123 is two, and the two clamping assemblies 123 are respectively arranged on both sides of the carrier plate 122, and are used to clamp the opposite sides of the material tray to prevent the material tray from tipping over. The number of clamping assemblies 123 can also be greater than two, and the clamping assemblies 123 can be arranged on both opposite sides of the carrier plate 122. In other embodiments of the present invention, please refer to Figure 8 One side of the carrier plate 122 is bent to form a baffle plate 1221, and the other side of the carrier plate 122 is provided with a clamping assembly 123, and the number of the clamping assemblies 123 on this side is not limited here. After the material tray is placed on the carrier plate 122, one side of the material tray abuts against the baffle plate 1221, and the other side of the material tray is pressed by the clamping assembly 123.

[0062] Optionally, see Fig. 9 The clamping assembly 123 includes a hook cylinder 1231, a hook body 1232 and a hook pin 1233. The hook cylinder 1231 can be fixed to the bottom of the carrier plate 122, the hook body 1232 is connected to the output end of the hook cylinder 1231, and the hook body 1232 is also rotatably connected to the carrier plate 122 through the hook pin 1233. When the hook cylinder 1231 pushes, the hook body 1232 rotates relative to the carrier plate 122, so that the hook part 12322 of the hook body 1232 presses the material tray to ensure that the material tray is stably placed in the carrier plate 122. In other embodiments, the clamping assembly 123 can also be selected as a cylinder, and the material tray is directly clamped by the cylinder.

[0063] Optionally, see Fig. 9The hook body 1232 includes a connecting portion 12321 and a hook portion 12322, wherein the connecting portion 12321 is connected to the output end of the hook cylinder 1231, and the hook portion 12322 is rotatably connected to the carrier plate 122. More specifically, a hook notch 1222 is provided on one side of the carrier plate 122 where the clamping assembly 123 is provided, and the hook notch 1222 has two oppositely disposed side walls, and the two ends of the hook pin 1233 extend into the two oppositely disposed side walls, respectively, and the hook pin 1233 is disposed through the hook portion 12322, so that the hook body 1232 is mounted at the edge of the carrier plate 122, thereby realizing the rotatable connection between the hook body 1232 and the carrier plate 122.

[0064] More specifically, see Fig. 9 The connecting part 12321 is provided with a strip hole 123210, and the output end of the hook claw cylinder 1231 is arranged through the strip hole 123210. Moreover, the output end of the hook claw cylinder 1231 is provided with an annular groove 12310, so that the connecting part 12321 is clamped in the annular groove 12310 to prevent the hook claw body 1232 from falling off the hook claw cylinder 1231. The length direction of the strip hole 123210 is perpendicular to the rotation axis of the hook claw body 1232. When the hook claw cylinder 1231 is in motion, the hook claw body 1232 can slide relative to the hook claw cylinder 1231 in the length direction of the strip hole 123210, thereby preventing the hook claw body 1232 from being stuck at the output end of the hook claw cylinder 1231. The cross-sectional diameter of the part where the output end of the hook claw cylinder 1231 passes through the hook claw body 1232 is greater than the width of the bar hole 123210. The cross-sectional diameter of the output end of the hook claw cylinder 1231 at the annular groove 12310 is smaller than the width of the bar hole 123210, so that the hook claw body 1232 can be clamped on the output end of the hook claw cylinder 1231.

[0065] In one embodiment of the present invention, see Fig.10The second lifting assembly 131 includes a lifting cylinder 1311 and a second lifting bracket 1312. The second lifting bracket 1312 is driven by the lifting cylinder 1311 to move up and down. The fixed end of the lifting cylinder 1311 is fixed to the track seat 1241, and the moving end of the lifting cylinder 1311 is fixedly connected to the second lifting bracket 1312. The second lifting bracket 1312 includes a second lifting bottom plate 13121, a third support column 13122 and a second push-up plate 13133. The second lifting bottom plate 13121 is fixedly connected to the moving end of the lifting cylinder 1311, and the two ends of the third support column 13122 are respectively fixedly connected to the second push-up plate 3133 and the second lifting bottom plate 13121. The third support column 13122 is slidably connected to the guide rail structure 124, and the second push-up plate 13133 is used to push and support the tray. Optionally, there are two second push-up plates 13133. When the carrier tray 122 moves to the top of the second lifting assembly 131, the two second push-up plates 13133 are respectively located on both sides of the carrier tray 122 to avoid interference with the carrier tray 122. At least one third support column 13122 is fixed to each second push-up plate 13133, and two or more third support columns 13122 may also be fixed. The lifting cylinder 1311 can realize lifting motion with low cost. In the second lifting assembly 131, there is no need to accurately control the lifting height of the stacked trays, so the lifting cylinder 1311 can meet the demand.

[0066] Optionally, see Figure 7 The first supporting assembly 112 and the second supporting assembly 132 have the same structure. The second supporting assembly 132 includes at least four second telescopic cylinders 1321. At least two second telescopic cylinders 1321 are respectively provided on opposite sides of the stacking tray. When the second supporting assembly 132 includes four second telescopic cylinders 1321, two of the second telescopic cylinders 1321 are provided on one side of the stacking tray, and the other two second telescopic cylinders 1321 are provided on the other side of the stacking tray, so that at least two second telescopic cylinders 1321 are provided on the clamped side of the stacking tray to ensure the stability of the clamped tray.

[0067] In one embodiment of the present invention, see Figure 7The tray stacking mechanism 13 also includes a second positioning structure 133, which can be the same as the specific structure of the first positioning structure 113. The second positioning structure 133 is used to position the stacked trays stacked above the second lifting assembly 131. The second positioning structure 133 includes four second positioning columns 1331, the cross section of the second positioning columns 1331 is L-shaped, or the cross section of the second positioning columns 1331 has an L-shaped recess, and the four second positioning columns 1331 can form a frame-shaped space to limit the trays. The second positioning columns 1331 can be fixed on the guide rail structure 124, wherein two second positioning columns 1331 are fixed to one of the guide rail bodies 1242, and the other two second positioning columns 1331 are fixed to the other guide rail body 1242. A second height sensor 1332 is provided on at least one second positioning column 1331, which is used to detect the number of stacked trays above the second lifting assembly 131. When the number of trays reaches the set maximum value, an alarm can be issued to prompt the staff to remove the stacked empty trays.

[0068] The present invention further provides a chip testing device, which includes the tray moving mechanism in any of the above embodiments, and may also include a testing device for electrical testing of the chip.

[0069] The chip testing equipment provided by the present invention adopts the above-mentioned product counting device to realize automatic counting, detection and replenishment of products, which greatly reduces labor costs, reduces the occurrence of false detection and missed detection, and improves shipment quality.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A product counting device, characterized in that: include: A tray transmission mechanism is used to transport trays filled with products to be tested, wherein the transmission direction of the tray transmission mechanism is arranged along the Y axis; the tray transmission mechanism includes A tray layering mechanism, comprising a first lifting assembly for lifting and lowering stacked trays and a first supporting assembly for separating the bottom tray from other trays; A tray moving mechanism, used for conveying the trays separated from the tray stratification mechanism; as well as A tray stacking mechanism, used for stacking trays transported by the tray moving mechanism, the tray stacking mechanism comprising a second supporting assembly for supporting the stacked trays and a second lifting assembly for pushing the trays on the tray moving mechanism to the bottom of the stacked trays; An appearance inspection mechanism is disposed above the tray transmission mechanism and is used to confirm the quantity of products and inspect the appearance and placement direction of the products; A material replenishment transmission mechanism, used for transporting the material replenishment tray, wherein the transmission direction of the material replenishment transmission mechanism is arranged along the Y axis; and A grabbing mechanism, used to remove defective products and grab products from the replenishing tray on the replenishing transmission mechanism to fill the tray on the tray transmission mechanism, the grabbing mechanism comprising an X-axis moving module and a grabbing assembly provided on the X-axis moving module; The material grabbing assembly includes a material grabbing mounting plate, a material grabbing cylinder, a connecting frame, a nozzle body fixed to the connecting frame, and a nozzle seat for the nozzle body to pass through, the nozzle seat is fixed to the material grabbing mounting plate, the cylinder shaft of the material grabbing cylinder is slidably connected to the connecting frame, and a buffer is elastically connected between the cylinder shaft and the connecting frame.

2. The product counting device according to claim 1, characterized in that: A material grabbing slide rail is fixed on the material grabbing mounting plate, a material grabbing slider is fixed on the connecting frame, and the material grabbing slider is slidably connected to the material grabbing slide rail.

3. The product counting device according to claim 1, characterized in that: The X-axis moving module includes an X-axis mounting plate, an X-axis motor, an X-axis lead screw driven by the X-axis motor, an X-axis nut block threadedly connected to the X-axis lead screw, an X-axis slider fixed to the X-axis nut block, and an X-axis slide rail fixed to the X-axis mounting plate, and the X-axis slider is slidably connected to the X-axis slide rail.

4. The product counting device according to claim 1, characterized in that: The feeding transmission mechanism includes a feeding motor, a feeding screw, a feeding nut block threadedly connected to the feeding screw, a feeding slider fixed to the feeding nut block, and a feeding slide rail for the feeding slider to slide.

5. The product counting device according to claim 1, characterized in that: The appearance inspection mechanism includes a lens bracket, a camera fixed to the lens bracket, and a light source for illuminating the product on the tray transmission mechanism.

6. The product counting device according to claim 1, characterized in that: The material tray moving mechanism includes a transmission drive, a carrier plate driven by the transmission drive and used to place the material tray, a clamping assembly used to clamp the material tray in the carrier plate, and a guide rail structure used to guide the material tray.

7. The product counting device according to claim 6, characterized in that: The clamping assembly includes a hook cylinder fixed to the supporting plate, a hook body connected to the output end of the hook cylinder and used for clamping and fixing the material tray, and a hook pin that enables the hook body to be rotatably connected to the supporting plate.

8. Chip testing equipment, characterized in that: It comprises the product counting device as described in any one of claims 1-7.

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