Automatic separation mechanism and testing device

Abstract

The application discloses an automatic separation mechanism and a testing device, wherein the automatic separation mechanism comprises an interface arranged on a workbench, and a terminal plug which is electrically connected with a circuit board to be detected is inserted into the interface; a pin array is arranged on the lower side of the workbench and is driven to lift; when the pin array is driven to lift, the pin array is located in the interface and is used for inserting the terminal plug; when the pin array is driven to descend, the pin array is separated from the terminal plug which remains in the interface; when the pin array is driven to lift again, the terminal plug is pushed out of the interface by the pin array. The testing device disclosed by the application realizes automatic wire pulling, reduces the operation steps of employees, and improves the testing efficiency from another aspect.

Description

Technical Field

[0001] The present invention belongs to the field of detection, and in particular relates to an automatic separation mechanism and a testing device. Background Art

[0002] Currently, testing of air conditioner photosensitive detection boards requires manual testing of the supporting motherboard due to their specialized functions, which can easily lead to missed detections. The test can only test four units, requiring visual identification, manual XOR determination, and manual masking of the photoresistor to determine whether the photosensitive function is functioning properly based on changes in resistance. This is prone to missed detections, and testing efficiency is low, with a high probability of missed detections. One person testing four units at a time requires three people per line, and testing speed cannot keep up with production speed, resulting in low production efficiency. Summary of the Invention

[0003] The present invention aims to provide an automatic separation mechanism and a testing device for automatically and quickly testing a circuit board to be tested.

[0004] To achieve the above objectives, the specific technical solutions of the automatic separation mechanism and testing device of the present invention are as follows:

[0005] An automatic separation mechanism includes an interface arranged on a workbench, in which a terminal plug electrically connected to a circuit board to be tested is inserted; a pin row driven to rise and fall is arranged on the lower side of the workbench; when the pin row is driven to rise, the pin row is located in the interface and is plugged into by the terminal plug; when the pin row is driven to descend, the pin row and the terminal plug remaining in the interface are separated; when the pin row is driven to rise again, the terminal plug is pushed out of the interface by the pin row.

[0006] Furthermore, a needle seat is formed on the side wall of the interface, and the terminal plug is clamped in the needle seat.

[0007] Furthermore, a card plate is provided on one side of the terminal plug, the middle part of the card plate and the side surface of the terminal plug are connected by an elastic fulcrum, and a card block protruding toward the side close to the terminal plug is formed on the lower side of the card plate; the needle seat is formed with a card slot for the lower end of the card plate to be inserted, and a protrusion is formed on the edge of the card slot to be engaged with the card block.

[0008] Furthermore, a pressing head is formed on the upper side of the card plate, which protrudes toward the side away from the terminal plug, and an inclined extrusion surface is formed on the upper edge of the needle seat; when the pin row descends and separates from the terminal plug, the terminal plug slides down in the socket, and the extrusion surface presses the pressing head inward, so that the card block and the protrusion are separated.

[0009] Furthermore, positioning blocks protruding outward are formed at both ends of the terminal plug, and a stop is formed on the upper side of the inner wall of the interface, and the stop abuts against the bottom surface of the positioning block to limit the descending distance of the terminal plug.

[0010] Furthermore, guide blocks are formed on both sides of the terminal plug, and guide grooves for the guide blocks to slide into are formed on the inner wall of the interface.

[0011] Furthermore, the workbench is provided with multiple groups of interfaces, and a needle plate is provided on the lower side of the workbench, and the needle rows corresponding to the interfaces are all fixedly connected to the needle plate.

[0012] Furthermore, the needle plate is driven to rise and fall by a cylinder, a guide plate is fixedly connected in the shell, and a guide sleeve is fixedly connected on the guide plate and is sleeved on the outside of the cylinder piston rod.

[0013] A testing device comprises a shell, a workbench is formed on the shell, and the above-mentioned automatic separation mechanism is arranged inside the workbench.

[0014] Furthermore, the housing is provided with a manual switch, and when unqualified products are detected, the manual switch is used to drive the cylinder to drive the needle to rise.

[0015] The automatic separation mechanism and testing device of the present invention have the following advantages:

[0016] 1. Production efficiency: The test device can realize one-to-16 automatic tests. Before the improvement, 3 people tested 12 products. After the improvement, 2 people can test 32 products, and the number of tests has increased by about 3 times. The test can realize automatic disconnection, reducing the number of employee operation steps, thereby improving the test efficiency.

[0017] 2. Safety protection function: The device has a safety protection function. All mechanical structures are built-in, all inside the shell, and there is no safety accident. The electrical wiring is also all inside the shell, with no exposed parts, and there is no electrical safety accident or mechanical injury accident.

[0018] 3. Quality: By simulating faulty parts, the test device can effectively detect faults and effectively control defects. Scanning the code to save and record data effectively prevents faults from flowing into subsequent processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view of the testing device of the present invention;

[0020] Figure 2 An exploded view of the test device of the present invention;

[0021] Figure 3 This is a schematic diagram of the connection between the interface and the terminal plug of the present invention;

[0022] Figure 4 This is a schematic diagram of the terminal plug structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the cylinder installation structure of the present invention.

[0024] Description of the marks in the figure:

[0025] 1. Housing; 11. Workbench; 12. Screen; 2. Interface; 21. Needle holder; 211. Card slot; 212. Bump; 213. Extrusion surface; 3. Terminal plug; 31. Card plate; 311. Card block; 312. Pressing head; 32. Elastic fulcrum; 33. Positioning block; 34. Guide block; 4. Needle plate; 41. Pin header; 5. Cylinder; 6. Guide plate. DETAILED DESCRIPTION

[0026] In order to better understand the purpose, structure and function of the present invention, an automatic separation mechanism and a testing device of the present invention are further described in detail below with reference to the accompanying drawings.

[0027] like Figure 1 As shown, a testing device of the present invention includes a housing 1 with a workbench 11 formed on the housing 1. A circuit board to be tested is connected to the workbench 11. An automatic separation mechanism is provided in the workbench 11 to separate the qualified circuit board from the testing device.

[0028] Combine Figure 2 As shown, the automatic separation mechanism includes an interface 2 provided on a workbench 11, into which a terminal plug 3 electrically connected to the circuit board to be tested is inserted; a needle plate 4 driven to rise and fall is provided on the lower side of the workbench 11, and a pin header 41 is provided on the pin plate 4; when the pin header 41 is driven to rise, the pin header 41 is located in the interface 2 and is provided for the terminal plug 3 to be inserted; when the pin header 41 is driven to descend, the pin header 41 and the terminal plug 3 remaining in the interface 2 are separated; when the pin header 41 is driven to rise again, the terminal plug 3 is pushed out of the interface 2 by the pin header 41.

[0029] Combine Figure 3 As shown, a needle holder 21 is formed on the side wall of the interface 2, and the terminal plug 3 is snapped into the needle holder 21. A clamping plate 31 is provided on one side of the terminal plug 3. The middle of the clamping plate 31 and the side of the terminal plug 3 are connected by an integrally formed elastic fulcrum 32. A clamping block 311 is formed on the lower side of the clamping plate 31, protruding toward the side close to the terminal plug 3. The needle holder 21 is formed with a clamping slot 211 for the lower end of the clamping plate 31 to be inserted into. A protrusion 212 is formed on the edge of the clamping slot 211, which engages with the clamping block 311.

[0030] In order to achieve automatic release of the locking structure, a pressing head 312 is formed on the upper side of the locking plate 31, protruding toward the side away from the terminal plug 3, and an inclined extrusion surface 213 is formed on the upper edge of the needle seat 21; when the pin row 41 descends and separates from the terminal plug 3, the terminal plug 3 slides down in the socket, and the extrusion surface 213 presses the pressing head 312 inward, so that the locking block 311 and the protrusion 212 are separated.

[0031] Combine Figure 4As shown, in order to ensure that the terminal plug 3 remains in the needle seat 21, positioning blocks 33 protruding outward are formed at both ends of the terminal plug 3, and a stop is formed on the upper side of the inner wall of the interface 2. The stop abuts against the bottom surface of the positioning block 33 to limit the descending distance of the terminal plug 3.

[0032] Furthermore, guide blocks 34 are formed on both sides of the terminal plug 3 , and guide grooves for the guide blocks 34 to slide into are formed on the inner wall of the interface 2 , so as to facilitate alignment of the pin header 41 and the terminal plug 3 .

[0033] In order to improve the detection efficiency, the workbench 11 is provided with multiple groups of interfaces 2, and the pin plate 4 is provided with pin rows 41 corresponding to each interface 2. By lifting the pin plate 4, the terminal plugs 3 of multiple circuit boards are pressed out at the same time.

[0034] Combine Figure 5 As shown, the needle plate 4 is raised and lowered by a cylinder 5. Cylinder 5 is fixedly mounted within housing 1, and its piston rod is fixedly connected to needle plate 4. Housing 1 also includes a guide plate 6, which has a through hole for the piston rod to pass through. A guide sleeve, which fits over the piston rod, is fixedly mounted within the through hole, thereby ensuring the relative position of needle plate 4 and interface 2.

[0035] A tilted screen 12 is provided on one side of the workbench 11 to display the test values ​​for easy viewing by the inspector. For ease of operation, the screen 12 is a touch screen. Furthermore, a manual switch is provided on the housing 1, which causes the cylinder 5 to drive the pin header 41 upward.

[0036] When all the tested products are qualified, the screen 12 displays the value of each product and outputs a qualified interface; the cylinder 5 is driven to move according to the control signal to achieve the separation of the device and the product.

[0037] When the test results are unqualified, the screen 12 shows which detection index of the corresponding channel is unqualified, the device alarms, and the operator needs to pick out the unqualified products, but the cylinder 5 will not pop up. The inspector needs to pick out the unqualified products, close the switch to pop up the cylinder 5, and then put the qualified products back to the production line.

[0038] According to the detection requirements, the shell 1 can be equipped with a 15F2K48S4 programmable controller, a temperature sensor package, and a CD4051BE acquisition chip. The programmable controller detects the humidity sensitivity value of the humidity sensor chip and the resistance value of the temperature sensor package. The program is written using the programmable controller to communicate with the touch screen to achieve human-computer interaction. The analog voltage acquisition value is acquired through 6 8-channel CD4051BE acquisition chips, and the working voltage and photosensitivity value of the sixteen-station photosensitive detection board are converted by the CD4051BE acquisition chip into a digital voltage value and transmitted to the controller. The control program is then written to make judgments and comparisons, and displayed on the human-computer interface. The comparison range is written into the PLC control and displayed on the touch screen, and the judgment range can be set. The circuit settings in the shell 1 are all existing technologies and will not be repeated in this embodiment. Similarly, different detection modules can be built into the shell 1 according to different detection parameters.

[0039] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. An automatic separation mechanism, characterized in that: The invention comprises an interface (2) arranged on a workbench (11), wherein a terminal plug (3) electrically connected to a circuit board to be tested is inserted into the interface (2); a pin row (41) driven to rise and fall is arranged on the lower side of the workbench (11); when the pin row (41) is driven to rise, the pin row (41) is located in the interface (2) and is plugged into the terminal plug (3); when the pin row (41) is driven to fall, the pin row (41) and the terminal plug (3) remaining in the interface (2) are separated; when the pin row (41) is driven to rise again, the terminal plug (3) is ejected from the interface (2) by the pin row (41); A needle seat (21) is formed on the side wall of the interface (2), and the terminal plug (3) is clamped in the needle seat (21); A card plate (31) is provided on one side of the terminal plug (3); the middle of the card plate (31) and the side of the terminal plug (3) are connected via an elastic fulcrum (32); a card block (311) protruding toward the side close to the terminal plug (3) is formed on the lower side of the card plate (31); a card slot (211) for inserting the lower end of the card plate (31) is formed on the needle seat (21); a protrusion (212) for engaging with the card block (311) is formed on the edge of the card slot (211); A pressing head (312) protruding toward a side away from the terminal plug (3) is formed on the upper side of the card plate (31), and an inclined extrusion surface (213) is formed on the upper edge of the needle seat (21); when the pin row (41) descends and separates from the terminal plug (3), the terminal plug (3) slides down in the socket, and the extrusion surface (213) presses the pressing head (312) inward, so that the card block (311) and the protrusion (212) are separated.

2. The automatic separation mechanism according to claim 1, characterized in that: Positioning blocks (33) protruding outward are formed at both ends of the terminal plug (3), and a stop is formed on the upper side of the inner wall of the interface (2). The stop abuts against the bottom surface of the positioning block (33) to limit the descending distance of the terminal plug (3).

3. The automatic separation mechanism according to claim 1, characterized in that: Guide blocks (34) are formed on both sides of the terminal plug (3), and a guide groove for the guide blocks (34) to slide into is formed on the inner wall of the interface (2).

4. The automatic separation mechanism according to claim 1, characterized in that: A plurality of interfaces (2) are provided on the workbench (11), a needle plate (4) is provided on the lower side of the workbench (11), and needle rows (41) corresponding to the interfaces (2) are all fixedly connected to the needle plate (4).

5. The automatic separation mechanism according to claim 4, characterized in that: The needle plate (4) is driven to rise and fall by the cylinder (5); a guide plate (6) is fixedly connected inside the housing (1); and a guide sleeve which is sleeved outside the piston rod of the cylinder (5) is fixedly connected to the guide plate (6).

6. A testing device, comprising a housing (1), a working table (11) formed on the housing (1), characterized in that: An automatic separation mechanism as claimed in any one of claims 1 to 5 is arranged in the workbench (11).

7. The testing device according to claim 6, characterized in that The housing (1) is provided with a manual switch. When unqualified products are detected, the manual switch causes the cylinder (5) to drive the needle row (41) to rise.

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