CN112845187B - an automatic sorting machine - Google Patents

Abstract

The invention relates to the technical field of sorting equipment, in particular to an automatic sorting machine which comprises a fixed first test pen, a movable second test pen, a telescopic adsorption component and a control system, wherein the control system is used for controlling a test product to move until the direction of a connecting line of a first test point and the first test pen on the test product is vertical to the moving direction of the test product, at the moment, the telescopic adsorption component is controlled to adsorb and move the test product until the first test point is over against the first test pen, at the moment, the coordinate of the second test point is calculated according to the coordinate of the first test pen, the second test pen is controlled to move according to the calculation result until the second test pen is over against the second test point, the test is carried out, and the telescopic adsorption component is controlled to sort the test product according to the test result. By adopting the scheme, the technical problem that the aligning speed of the test pen and the test point is low when a product is tested in the prior art can be solved.

Description

an automatic sorting machine

technical field

The invention relates to the technical field of sorting equipment, in particular to an automatic sorting machine.

Background technique

In different industries, products need to be sorted, such as sorting according to the test results of the products to ensure the quality of the manufactured products. Therefore, it is necessary to test products such as chips and integrated circuits, and sort according to the test results. The traditional test is that the tester holds the test pen with both hands, puts the two test pens on the test points on the product for testing, and tests each product one by one. The test efficiency is extremely low and the labor cost is high, so the existing technology improves it , tested by mechanical means.

In the prior art, the position of the two test points in the product is calculated by three-dimensional positioning, and the test by mechanical means mainly includes the following two types: one is to set two test pens on the frame, and control the two test pens respectively on the frame according to the calculation results. Move to reach the position of the test point to realize the test of the product. The second is to set up two manipulators, and control the contact between the manipulator and the test point according to the calculation results to realize the test of the product. However, since different batches of products have different positions of the test points, it is necessary to perform three-dimensional positioning calculations on the two test points every time, so that the alignment speed between the test pen and the test points is low, resulting in low test efficiency.

Contents of the invention

The present invention intends to provide an automatic sorting machine to solve the technical problem of low alignment speed between the test pen and the test point in the prior art when testing products.

The present invention provides following basic scheme:

An automatic sorting machine, including a main frame, the main frame is provided with a transmission component for transporting test products and a detection component for testing the test products;

The detection assembly includes a first test pen, a second test pen and a moving mechanism located above the conveying assembly, the first test pen is fixedly connected to the main frame, the second test pen is fixedly connected to the moving mechanism, and the moving mechanism is used to move on the main frame second test pen;

The main frame is also equipped with a telescopic adsorption assembly for moving the test product. The telescopic adsorption assembly includes a telescopic mechanism and an adsorption mechanism for absorbing the test product. One end of the telescopic mechanism facing the test product is fixedly connected with the adsorption mechanism. The main frame is fixedly connected;

It also includes a control system. The test product is provided with a first test point and a second test point. The control system is used to control the start of the transmission component. When the direction of the connecting line between the first test pen and the first test point is perpendicular to the moving direction of the test product , control the transmission assembly to stop, and control the telescopic mechanism to stretch out; the control system is also used to control the telescopic mechanism to stop and the adsorption mechanism to start when the adsorption mechanism is in contact with the test product; the control system is also used to control the adsorption mechanism to absorb the test product. When the first test point is facing the first test pen, the control system is used to control the telescopic mechanism to start; the control system is also used to control the telescopic mechanism to stop when the first test point is facing the first test pen, and to control the movement mechanism to start; When the test pens are aligned, control the first test pen and the second test pen to detect the test product and generate the test result;

The test results include test pass and test fail. The control system is used to control the adsorption mechanism to close when the test result is test pass, and control the telescopic mechanism to reset and stop; when the test result is test fail, control according to the preset specified length The telescopic mechanism is stretched out; the control system is also used to control the closure of the adsorption mechanism and control the reset of the telescopic mechanism to stop when the stretching length of the telescopic mechanism reaches a specified length.

Beneficial effects of the basic scheme: in this scheme, the first test pen is fixed, and when the direction of the line connecting the first test point on the test product and the first test pen is perpendicular to the moving direction of the test product, in the direction of looking down, the first test point and the first test pen The first test pen is flush, and at this time, control the telescopic adsorption assembly to adjust the distance between the first test point and the first test pen, so that the first test point is facing the first test pen, and then according to the second test The point controls the movement of the second test pen until the second test point is in direct contact with the second test pen, and the test is performed, and different operations are performed according to the test result. Compared with the prior art, it only needs to perform three-dimensional positioning calculation on the second test point, the amount of data is small, the calculation speed is fast, the alignment speed of the test pen and the test point is improved, and the test efficiency is improved.

When the second test point and the second test pen are facing each other, the adsorption telescopic assembly is still in the state of absorbing the test product. At this time, the adsorption telescopic assembly clamps and positions the test product, and avoids the displacement of the test product during the test. Avoid repeated testing and improve testing efficiency.

When the test result is qualified, control the adsorption mechanism to close, and control the telescopic mechanism to reset and stop. For the test products that pass the test, no more adsorption. When the transmission component starts, the test product continues to be transported to the next link along the transmission component. When the test result is unqualified, the telescopic mechanism is controlled to extend according to the preset designated length; the control system is also used to control the adsorption mechanism to close and control the telescopic mechanism to reset and stop when the stretched length of the telescopic mechanism reaches the designated length. For unqualified test products, the test products are pushed out from the conveying assembly through the adsorption mechanism to realize the discharge of unqualified products, and at the same time realize the sorting of qualified products and unqualified products.

When the test point of the test product is changed by adopting this solution, or when different batches of test products are tested, the alignment speed between the test pen and the test point is effectively improved, and the test efficiency is improved.

Further, the control system is used to establish a coordinate system when the first test point and the first test pen are facing each other, and obtain the zero point coordinates of the first test point, according to the zero point coordinates of the first test point and the preset second test pen The original coordinates generate a positioning control instruction, and the moving mechanism is controlled according to the positioning control instruction.

Beneficial effects: the coordinate system is established, and positioning control instructions are generated according to the coordinates to control the moving mechanism, which is easy to implement and ensures control accuracy.

Further, the control system includes a coordinate calculation module, and the coordinate calculation module is used for when the first test point and the first test pen are facing each other, with the first test point as the coordinate origin, the moving direction of the test product and the vertical direction of the test product movement are Establish a coordinate system on the horizontal and vertical axes, calculate the test coordinates of the second test point, calculate the coordinate difference according to the preset original coordinates and test coordinates of the second test pen, and generate positioning control instructions according to the coordinate difference, and the control system is used according to the positioning The control instructions control the moving mechanism.

Beneficial effects: the first test point is used as the coordinate origin, and compared with the prior art, the system processing flow is simplified, the amount of data processing is reduced, and the response speed is improved, thereby increasing the alignment speed between the test pen and the test point.

Further, both the first test pen and the second test pen include a distance-adjustable structure and a test head, the bottom of the distance-adjustable structure is connected to the test head, and the distance-adjustable structure is used to adjust the distance between the test head and the test product.

Beneficial effects: the distance between the test head and the test product is adjusted through the distance adjustment structure, and when the test point and the test pen are facing each other, the distance adjustment structure makes the two contact, thereby realizing the test of the test product.

Further, the adsorption mechanism is an electric sucker, and the electric sucker includes a suction nozzle, one end of the suction nozzle is connected to the telescopic mechanism, and the other end of the suction nozzle faces the test product, and is used for absorbing the test product.

Beneficial effects: the test product applicable to this application is a chip, and for the chip, clamping and other methods are likely to cause damage to the chip, which may affect the performance of the chip. This application adopts the method of adsorption, which is not easy to cause damage to the test product and reduces the failure rate of the test product.

Further, the main frame is also provided with a collection device, and the control system is used to obtain the image information collected by the collection device, generate transmission control instructions according to the image information, and control the transmission components according to the transmission control instructions.

Beneficial effects: the transmission component is controlled according to the image information, so as to realize the transmission of the test product, so that the direction where the first test point on the test product is connected to the first test pen is perpendicular to the moving direction of the test product.

Further, the telescopic mechanism includes one of an electronically controlled telescopic rod, a cylinder, and a scissor frame.

Further, the moving mechanism includes a horizontal slide rail for the second test pen to move laterally, a first frame slidably connected to the horizontal slide rail, a vertical slide rail for the second test pen to move longitudinally, and a first frame slidingly connected to the vertical slide rail. There are two frames, the horizontal slide rail is set on the main frame, the vertical slide rail is set on the first frame, and the second test pen is set on the second frame.

Beneficial effects: the setting of the horizontal slide rail realizes the horizontal movement of the first frame, and the setting of the vertical slide rail realizes the longitudinal movement of the second frame, thereby realizing the movement of the second test pen in the vertical and horizontal directions , so as to realize the automatic test of the test product and effectively improve the test efficiency.

Description of drawings

Fig. 1 is the top view of a kind of automatic sorting machine embodiment of the present invention;

Fig. 2 is the front view of a kind of automatic sorting machine embodiment of the present invention;

Fig. 3 is a logic block diagram of a control system of an embodiment of an automatic sorting machine according to the present invention.

detailed description

The following is further described in detail through specific implementation methods:

The reference signs in the drawings of the description include: main frame 1, transmission assembly 2, first frame 301, second frame 302, first test pen 4, second test pen 5, test head 6, telescopic mechanism 7, Adsorption mechanism 8.

Example

An automatic sorting machine, including a main frame 1 and a control system, the main frame 1 is provided with a conveying assembly 2 for transporting test products, a detection assembly for testing test products, and a telescopic adsorption assembly for moving test products and collection devices.

As shown in accompanying drawing 1, main frame 1 comprises horizontal installation bracket and vertical support bracket, and the two ends of installation bracket are fixedly connected with the top of two support brackets respectively, and in this embodiment, the two ends of installation bracket are respectively connected with the top of two support brackets. The tops of the two support brackets are welded. The main frame 1 is placed on the bottom surface. In this embodiment, the transmission assembly 2 is an existing conveyor belt mechanism. The transmission assembly 2 is located between the main support and the ground. The transmission direction of the transmission assembly 2 is perpendicular to the axial direction of the horizontal support.

The detection assembly includes a first test pen 4, a second test pen 5, and a moving mechanism positioned above the transfer assembly 2, the first test pen 4 is fixedly connected to the main frame 1, and the second test pen 5 is fixedly connected to the moving mechanism. Then move the second test pen 5 on the main frame 1. Specifically, the first test pen 4 is detachably connected to the horizontal support. In this embodiment, the top of the first test pen 4 is detachably connected to the horizontal support by screws. The moving mechanism includes a horizontal slide rail for the second test pen 5 to move laterally, a first frame 301 slidably connected to the horizontal slide rail, a vertical slide rail for the second test pen 5 to move longitudinally, and a sliding rail connected to the vertical slide rail. For the second frame 302 , the horizontal slide rail is arranged on the main frame 1 , the longitudinal slide rail is arranged on the first frame 301 , and the second test pen 5 is arranged on the second frame 302 . In this embodiment, there are two transverse slide rails, the transverse slide rails are arranged on the horizontal support, the first frame 301 is slidingly connected with the transverse slide rails, the longitudinal slide rails are arranged on the first frame 301, and the second The frame 302 is slidingly connected to the longitudinal slide rail, and the top of the second test pen 5 is detachably connected to the second frame 302 by screws. The movement of the first frame 301 and the second frame 302 can be driven by a screw pair and a stepping motor, can also be driven by a cylinder, an oil cylinder, etc., and can also be moved by an electric telescopic rod. In this embodiment, The first frame 301 and the second frame 302 are driven by the lead screw pair and the stepping motor, and the start of the stepping motor is controlled according to the number of pulses, thereby controlling the rotation of the lead screw pair, and then controlling the first frame 301 in the lateral direction movement on the slide rails, and control the movement of the second rack 302 on the longitudinal slide rails.

As shown in accompanying drawing 2, the first test pen 4 and the second test pen 5 all comprise distance-adjusting structure and test head 6, and the bottom of distance-adjusting structure is connected with test head 6, and distance-adjusting structure is used for adjusting test head 6 and testing. distance between products. Specifically, the distance adjustment structure is a piston cylinder, and the piston cylinder includes a cylinder and a piston rod. The cylinder of the first test pen 4 is connected to the horizontal support, the cylinder of the second test pen 5 is connected to the second support, and the piston rod is connected to the test head 6. Fixed connection. In other embodiments, in order to make the movement range of the second test pen 5 larger and to prevent the first test pen 4 from interfering with the movement of the second test pen 5, a telescopic piece is connected between the first test part and the main frame 1, and the telescopic The part is an electric control cylinder. When the telescopic part shrinks, the second test pen 5 is located above the first frame 301 of the moving mechanism. When testing is required, the telescopic part is controlled to extend so that the first test pen 4 and the second test pen Pen 5 is able to test the test product.

The telescopic adsorption assembly includes a telescopic mechanism 7 and an adsorption mechanism 8 for absorbing test products. One end of the telescopic mechanism 7 facing the test product is fixedly connected to the adsorption mechanism 8, and the other end of the telescopic mechanism 7 is fixedly connected to the main frame 1. Specifically, the telescopic mechanism 7 includes one of an electronically controlled telescopic rod, a cylinder, and a scissor frame. In this embodiment, the telescopic mechanism 7 selects an electronically controlled telescopic rod. It is fixedly connected with the support bracket by screws, and the free end of the telescopic rod is connected with the adsorption mechanism 8. The adsorption mechanism 8 is an electronically controlled suction cup, which includes a suction nozzle, one end of the suction nozzle is connected to the telescopic mechanism 7 by a screw, and the other end of the suction nozzle faces the test product, and is used to absorb the test product. In this embodiment, the suction nozzle There are a number of adsorption holes on it, which is convenient for the adsorption of test products.

The collection device includes a camera module, the camera module faces the conveying component 2, and is used for collecting image information of the test product transported by the conveying component 2. In this embodiment, the camera module is a camera, and the camera is installed on a horizontal support.

The test product is provided with a first test point and a second test point. When the first test pen 4 and the second test pen 5 contact the first test point and the second test point respectively, a loop is formed to test the test product. For example, to test the chip.

As shown in Figure 3, the control system includes an image analysis module, a coordinate calculation module, an instruction generation module, a main control module, and a test module.

The control system is used to obtain the image information collected by the acquisition device, generate transmission control instructions according to the image information, and control the transmission component 2 to start according to the transmission control instructions. When the direction is vertical, the control transmission assembly 2 stops. Specifically, the collection device is used to collect image information and upload it to the control system when the transmission component 2 stops. The image analysis module is used to perform image recognition on the image information to generate the transmission distance between the first test point and the first test pen 4 in the transmission direction of the transmission component 2. The instruction generation module is used to generate transmission control instructions according to the transmission distance. The main control module uses The opening and closing of the transmission component 2 is controlled according to the transmission control command. When the transmission component 2 receives the transmission control command, it starts and stops the transmission. When the transmission is stopped, the moving distance of the test product is the same as the transmission distance.

The control system is used to control the extension of the telescopic mechanism 7 when the control transmission assembly 2 is stopped, and control the telescopic mechanism 7 to stop and control the suction mechanism 8 to start when the adsorption mechanism 8 touches the test product. Specifically, the main control module is also used to control the telescopic mechanism 7 to extend the telescopic rod when the transmission component 2 stops transmission, and when the suction nozzle touches the test product, the control adsorption mechanism 8 starts, and the suction nozzle absorbs the test product.

The control system is also used to control the telescopic mechanism 7 to start when the adsorption mechanism 8 absorbs the test product, and to control the telescopic mechanism 7 to stop when the first test point is facing the first test pen 4 . Specifically, the image analysis module is also used to perform image recognition on the image information to generate the lateral distance between the first test point and the first test pen 4 in the vertical transmission direction, and the instruction generation module is also used to generate a distance control instruction according to the lateral distance. The control module is also used to control the expansion and contraction of the telescopic mechanism 7 according to the distance control command. When the telescopic mechanism 7 receives the distance control command, it starts and stops stretching. When it stops stretching, the first test pen 4 faces the first test point.

The control system is also used to establish a coordinate system when the first test point and the first test pen 4 are facing each other, and obtain the zero point coordinates of the first test point, according to the zero point coordinates of the first test point and the preset second test pen 5 The original coordinates generate positioning control instructions, and control the opening and closing of the moving mechanism according to the positioning control instructions. When the second test point and the second test pen 5 are facing each other, control the first test pen 4 and the second test pen 5 to detect the generation of test products Test Results. Specifically, the coordinate calculation module is used to obtain the zero point coordinates of the first test point when the first test point and the first test pen 4 are facing each other with the first test point as the coordinate origin, and the zero point coordinates are the coordinate origin to test the product. The direction of movement and the direction of vertical test product movement is to establish a coordinate system for the horizontal and vertical axes, calculate the test coordinates of the second test point, and calculate the coordinate difference according to the preset original coordinates and test coordinates of the second test pen 5 . The instruction generation module is also used to generate positioning control instructions according to the coordinate difference. The main control module is also used to control the start of the moving mechanism according to the positioning control instructions. When the moving mechanism receives the positioning control instructions, it starts moving according to the control instructions and stops according to the control instructions. Move, when the movement stops, the second test point is facing the second test pen 5. The main control module is also used to send a distance adjustment signal to the distance adjustment structure when the second test point and the second test pen 5 are facing each other, and the distance adjustment structure controls the test head 6 to move down, so that the first test point and the first test pen 4, and make the second test point and the second test pen 5 contact, at this time, the test module is used to perform the test and generate the test result, the test result includes test pass and test fail.

The control system is used to control the adsorption mechanism 8 to close when the test result is qualified, and to control the telescopic mechanism 7 to reset and stop; when the test result is unqualified, to control the telescopic mechanism 7 to extend according to the preset specified length; the control system It is also used to control the closure of the adsorption mechanism 8 and control the reset of the telescopic mechanism 7 when the extension length of the telescopic mechanism 7 reaches a specified length. Specifically, when the test result is that the test is qualified, the instruction generation module is also used to generate a qualified control instruction, and the main control module is also used to control the adsorption mechanism 8 to close according to the qualified control instruction, and control the telescopic mechanism 7 to reset and stop, so that the qualified test The product enters the next link through the conveying assembly 2. When the test result is unqualified, the instruction generation module is preset with a specified length, and the instruction generation module is also used to generate an elimination control instruction according to the specified length, and the main control module is also used to control the extension of the telescopic mechanism 7 according to the elimination control instruction, receiving The telescopic mechanism 7 feeds back a signal that the extended length reaches the specified length, controls the adsorption mechanism 8 to close, and controls the telescopic mechanism 7 to reset and stop, and pushes the unqualified test products out of the transmission component 2 to realize the sorting of qualified products and unqualified products.

What is described above is only an embodiment of the present invention, and the common knowledge such as the specific structure and characteristics known in the scheme is not described too much here, and those of ordinary skill in the art know all the common knowledge in the technical field to which the invention belongs before the filing date or the priority date Technical knowledge, being able to know all the existing technologies in this field, and having the ability to apply conventional experimental methods before this date, those of ordinary skill in the art can improve and implement this plan based on their own abilities under the inspiration given by this application, Some typical known structures or known methods should not be obstacles for those of ordinary skill in the art to implement the present application. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present invention, several modifications and improvements can also be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effects and utility of patents. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (8)

1. An automatic sorting machine, comprising a main frame, the main frame is provided with a transmission assembly for transporting the test product and a detection assembly for detecting the test product; it is characterized in that: The detection assembly includes a first test pen, a second test pen and a moving mechanism located above the conveying assembly, the first test pen is fixedly connected to the main frame, the second test pen is fixedly connected to the moving mechanism, and the moving mechanism is used to move on the main frame second test pen; The main frame is also equipped with a telescopic adsorption assembly for moving the test product. The telescopic adsorption assembly includes a telescopic mechanism and an adsorption mechanism for absorbing the test product. One end of the telescopic mechanism facing the test product is fixedly connected with the adsorption mechanism. The main frame is fixedly connected, and on the plane where the transmission component is located, the telescopic direction of the telescopic mechanism is perpendicular to the moving direction of the test product; It also includes a control system. The test product is provided with a first test point and a second test point. The control system is used to control the start of the transmission component. When the direction of the connecting line between the first test pen and the first test point is perpendicular to the moving direction of the test product , control the transmission assembly to stop, and control the telescopic mechanism to stretch out; the control system is also used to control the telescopic mechanism to stop and the adsorption mechanism to start when the adsorption mechanism is in contact with the test product; the control system is also used to control the adsorption mechanism to absorb the test product. When the first test point is facing the first test pen, the control system is used to control the telescopic mechanism to start; the control system is also used to control the telescopic mechanism to stop when the first test point is facing the first test pen, and to control the movement mechanism to start; When the test pens are aligned, control the first test pen and the second test pen to detect the test product and generate the test result; The test results include test pass and test fail. The control system is used to control the adsorption mechanism to close when the test result is test pass, and control the telescopic mechanism to reset and stop; when the test result is test fail, control according to the preset specified length The telescopic mechanism is stretched out; the control system is also used to control the closure of the adsorption mechanism and control the reset of the telescopic mechanism to stop when the stretching length of the telescopic mechanism reaches a specified length. 2. A kind of automatic sorting machine according to claim 1, characterized in that: the control system is used to establish a coordinate system when the first test point and the first test pen are facing each other, and obtain the zero point coordinates of the first test point , generating a positioning control instruction according to the zero coordinate of the first test point and the preset original coordinates of the second test pen, and controlling the moving mechanism according to the positioning control instruction. 3. A kind of automatic sorting machine according to claim 2, characterized in that: the control system includes a coordinate calculation module, the coordinate calculation module is used for when the first test point and the first test pen are facing each other, with the first test The point is the coordinate origin, the moving direction of the test product and the vertical direction of the test product are the horizontal and vertical axes to establish a coordinate system, calculate the test coordinates of the second test point, and calculate the coordinates according to the preset original coordinates and test coordinates of the second test pen The difference value generates a positioning control instruction according to the coordinate difference value, and the control system is used to control the moving mechanism according to the positioning control instruction. 4. A kind of automatic sorting machine according to claim 1, characterized in that: the first test pen and the second test pen both comprise a distance-adjustable structure and a test head, the bottom of the distance-adjustable structure is connected with the test head, and the distance-adjustable The structure is used to adjust the distance between the test head and the test product. 5. A kind of automatic sorting machine according to claim 1, characterized in that: the adsorption mechanism is an electric control suction cup, the electric control suction cup includes a suction nozzle, one end of the suction nozzle is connected with the telescopic mechanism, and the other end of the suction nozzle faces the test product, for adsorption test product. 6. A kind of automatic sorting machine according to claim 1, characterized in that: the main frame is also provided with a collection device, the control system is used to obtain the image information collected by the collection device, and generates transmission control instructions according to the image information, according to Transport control instructions control the transport component. 7. An automatic sorting machine according to claim 1, characterized in that: the telescopic mechanism includes one of an electrically controlled telescopic rod, a cylinder, and a scissor frame. 8. A kind of automatic sorting machine according to claim 1, characterized in that: the moving mechanism comprises a horizontal slide rail for the second test pen to move laterally, a first frame slidingly connected with the horizontal slide rail, and a second frame for the second test pen to move laterally. The vertical slide rail for the vertical movement of the test pen, and the second frame slidingly connected with the vertical slide rail, the horizontal slide rail is set on the main frame, the vertical slide rail is set on the first frame, and the second test pen is set on the second frame. rack.

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