Automatic test equipment for circuit board production

Abstract

The invention relates to the technical field of circuit board detection, in particular to automatic test equipment for circuit board production, which comprises a test box, the device further comprises a loading disc, a driving assembly, a fixing frame, a clamping rod, a supporting plate and the like. A loading disc is placed on the test box; a calibration part is arranged on the test box; a plurality of fixing rods are rotationally connected to the loading disc; a fixing groove is formed in each fixing rod; a driving assembly is arranged on the test box; the driving assembly is connected with a fixing frame; a plurality of clamping rods are rotationally connected to the fixed frame; and a supporting plate is arranged on each clamping rod. According to the invention, the circuit board is driven to incline through the clamping rod, so that the wire plugging port on the circuit board is automatically exposed, and the wire plugging row is controlled to drive the plug to complete wire plugging work, so that a worker does not need to break the circuit board to perform wire plugging and pulling work, and automation of wire plugging and pulling of the circuit board is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board detection, and in particular to automatic testing equipment for circuit board production. Background Art

[0002] During the production process of circuit boards, high and low temperature test chambers are needed to carry out high and low temperature tests on them, that is, to simulate the use of circuit boards in different temperature environments, to detect whether they can transmit signals normally under high temperature, low temperature and high and low temperature cycles, whether various electronic components can work normally, etc. Before the test, in order to meet the needs of batch testing, the staff needs to place multiple circuit boards in a loading tray, and then put the loading tray with the circuit boards into the high and low temperature test chamber. Then the staff needs to plug wires into each circuit board in order to power the circuit board and make it work normally. Since there are many circuit boards and they are densely stacked, the efficiency of manual wiring by the staff is low, which reduces the testing efficiency of the circuit boards.

[0003] Furthermore, since the circuit boards are densely stacked, workers need to pull the circuit boards apart when plugging them in to expose the plug interfaces on the circuit boards so as to plug in wires. However, the lower ends of the circuit boards are fixed by the loading tray. When the workers pull the circuit boards apart, the lower ends of the circuit boards are twisted, affecting subsequent testing of the circuit boards. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art that when conducting high and low temperature tests on circuit boards, workers are required to manually plug in wires, which reduces the test efficiency of the circuit boards and, at the same time, when workers open the circuit boards, the lower ends of the circuit boards are twisted, which affects subsequent circuit board testing work, the present invention provides an automatic testing device for circuit board production.

[0005] The technical solution of the present invention is: an automatic testing equipment for circuit board production, including a test box; also including a loading tray, a driving assembly, a fixed frame, a locking rod, a support plate and a wire plug assembly; a loading tray is placed on the test box; a calibration part for limiting and calibrating the loading tray is provided on the test box; a plurality of fixing rods for fixing the lower end of the circuit board are rotatably connected to the loading tray; a fixing groove is provided on each fixing rod; a driving assembly is provided on the test box; a fixing frame is connected to the driving assembly, and the driving assembly is used to move the fixing frame up and down and left and right; a plurality of locking rods for fixing the upper end of the circuit board are rotatably connected to the fixing frame; each locking rod is provided with a locking groove; each locking rod is provided with a support plate for supporting the circuit board; a wire plug assembly for convenient wire plugging is connected to the fixed frame.

[0006] As an improvement of the above-mentioned scheme, the driving assembly includes a telescopic driving component, a slide rail and an electric slider; a plurality of telescopic driving components are fixedly connected to the test box; the telescopic ends of all the telescopic driving components are commonly fixedly connected to a slide rail; a plurality of electric sliders are slidably connected to the slide rail; the lower sides of all the electric sliders are commonly fixedly connected to the fixed frame.

[0007] As an improvement of the above scheme, the plug-in assembly includes a movable block, a telescopic driving component 2, a plug-in block and a plug; a plurality of telescopic driving components 2 are connected to the fixed frame; the telescopic driving component 2 is arranged at an angle; the telescopic ends of all telescopic driving components 2 are commonly fixedly connected to a plug-in block; the plug-in block is connected to an external power supply through wires; and a plurality of plugs for supplying power to the circuit board are rotatably connected to the plug-in block.

[0008] As an improvement of the above scheme, it also includes an adjustment component, which includes a telescopic drive member 3 and a connecting rod; a plurality of sliding grooves are provided on the fixed frame; the telescopic drive member 2 is slidably arranged in the corresponding sliding groove; the telescopic drive member 3 is fixedly connected to the lower side of the plug row; the telescopic end of the telescopic drive member 3 is fixedly connected to a connecting rod for adjusting the tilt angle of the plug; each plug is provided with a movable groove; and each plug is slidably connected to the connecting rod through the movable groove.

[0009] As an improvement to the above solution, each fixing groove is configured to be in a flared shape.

[0010] As an improvement to the above solution, each card slot is configured to be in a flared shape.

[0011] As an improvement of the above solution, each locking rod is provided with a plurality of extension parts for protecting the circuit board.

[0012] As an improvement of the above scheme, it also includes a limiting plate; a limiting plate is rotatably connected to the loading disk for enhancing the fixing effect of the circuit board; the upper end of the limiting plate is arranged to be inclined backward; a plurality of limiting parts are arranged on the limiting plate; an extrusion part is arranged on the rear side of the fixing frame; and the extrusion part is located above the limiting plate.

[0013] As an improvement of the above solution, each limiting portion is configured to be in an arc shape.

[0014] As an improvement of the above scheme, it also includes a protective cover; a protective cover for protecting the plug strip is fixedly connected to all movable blocks; the protective cover is located above the locking rod; an avoidance groove for avoiding the plug is opened on the protective cover; each plug passes through the avoidance groove from top to bottom; and an elastic heat-insulating diaphragm is arranged in the avoidance groove.

[0015] The present invention has the following advantages: the present invention realizes that the circuit board is tilted by the locking rod, so that the plug-in port on the circuit board is automatically leaked, and at the same time the plug-in row is controlled to drive the plug to complete the plug-in work, and the staff does not need to break the circuit board to plug and unplug the wires, thus realizing the automation of plugging and unplugging the wires on the circuit board; The supporting plate supports the opposite side of the wiring port of the circuit board, and the extension part covers the edge of the circuit board to disperse the pressure when the plug is inserted into the wiring port, thereby preventing the circuit board from bending and deforming due to excessive pressure when the plug is inserted, thereby enhancing the protection effect of the circuit board during the wiring process; The rear side of the circuit board is limited by the limiting part to prevent the circuit board from rotating and deviating in the left and right directions on the loading tray, thereby ensuring that the locking rod and the upper end of the circuit board are normally connected; The protective cover is used to protect the connection between the plug strip and the plug, so as to prevent the service life of the connection between the plug strip and the plug from being reduced due to the influence of the test environment, avoid poor contact of the circuit board during the detection process, and ensure the normal high and low temperature test of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an automatic testing device for circuit board production of the present invention; Figure 2 It is a schematic diagram of the combined three-dimensional structure of the loading tray, the fixing frame, the locking rod, the supporting plate, the plug-in assembly and the protective cover of the present invention; Figure 3 It is a schematic diagram of the combined three-dimensional structure of the fixing frame, the locking rod, the support plate, the plug-in assembly, the limit plate and the protective cover of the present invention; Figure 4 It is a schematic diagram of the combined three-dimensional structure of the fixing frame, the plug-in assembly and the adjusting assembly of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the combination of the plug assembly, the adjustment assembly and the protective cover of the present invention; Figure 6 It is a schematic diagram of the combined three-dimensional structure of the fixing frame, the locking rod and the limiting plate of the present invention; Figure 7 This is a diagram of the circuit board of the present invention in a tilted wiring state.

[0017] The reference numbers in the figure are: 1-test box, 1001-calibration part, 2-loading plate, 2001-fixed rod, 2002-fixed groove, 3-stop rod, 3001-slot, 3002-extension part, 4-support plate, 101-telescopic drive part 1, 102-slide rail, 103-electric slider, 104-fixed frame, 10401-sliding groove, 10402-extrusion part, 201-movable block, 202-telescopic drive part 2, 203-plug strip, 204-plug, 20401-movable groove, 301-telescopic drive part 3, 302-connecting rod, 401-limiting plate, 40101-limiting part, 501-protective cover, 50101-avoidance groove. DETAILED DESCRIPTION

[0018] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0019] Example 1 like Figure 1-Figure 7 As shown, an automatic testing device for circuit board production includes a test box 1; the test box 1 is provided with a box door; It also includes a loading tray 2, a driving assembly, a fixed frame 104, a locking rod 3, a support plate 4 and a plug-in assembly; the loading tray 2 is placed on the test box 1; the test box 1 is provided with a calibration part 1001; the loading tray 2 is rotatably connected to a plurality of fixing rods 2001 via a torsion spring; each fixing rod 2001 is provided with a fixing groove 2002; the test box 1 is provided with a driving assembly; the driving assembly is connected to the fixing frame 104; the fixing frame 104 is rotatably connected to a plurality of locking rods 3 via a torsion spring; each locking rod 3 is provided with a locking groove 3001; each locking rod 3 is provided with a support plate 4; the fixed frame 104 is connected to a plug-in assembly.

[0020] The driving assembly includes a telescopic driving member 101, a slide rail 102 and an electric slider 103; two symmetrically arranged telescopic driving members 101 are fixedly connected to the test box 1, and the telescopic driving members 101 are electric push rods; the telescopic ends of all telescopic driving members 101 are commonly fixedly connected to a slide rail 102; two electric sliders 103 are slidably connected to the slide rail 102; the lower sides of all electric sliders 103 are commonly fixedly connected to the fixed frame 104.

[0021] The plug-in assembly includes a movable block 201, a telescopic driving member 202, a plug-in row 203 and a plug 204; two telescopic driving members 202 are connected to the fixed frame 104, and the telescopic driving members 202 are electric push rods; the telescopic driving members 202 are arranged tilted; the telescopic ends of all telescopic driving members 202 are commonly fixedly connected to a plug-in row 203; the plug-in row 203 is connected to an external power supply through electric wires; and a number of plugs 204 are rotatably connected to the plug-in row 203.

[0022] It also includes an adjustment component, which includes a telescopic drive component 301 and a connecting rod 302; two sliding grooves 10401 are provided on the fixed frame 104; the telescopic drive component 202 is slidably arranged in the corresponding sliding grooves 10401; the lower side of the plug row 203 is fixedly connected to the telescopic drive component 301, and the telescopic drive component 301 is an electric push rod; the telescopic end of the telescopic drive component 301 is fixedly connected to the connecting rod 302; each plug 204 is provided with a movable groove 20401; each plug 204 is slidably connected to the connecting rod 302 through the movable groove 20401.

[0023] Each fixing slot 2002 is configured to be flared, so that the staff can easily insert the circuit board into the fixing slot 2002 .

[0024] Each of the slots 3001 is configured to be flared, so as to facilitate the docking of the locking rod 3 with the circuit board.

[0025] Each locking rod 3 is provided with two symmetrically arranged extension portions 3002 .

[0026] It also includes a limiting plate 401; the limiting plate 401 is rotatably connected to the loading plate 2 through a torsion spring; the upper end of the limiting plate 401 is arranged to be tilted backward; a plurality of limiting parts 40101 are arranged on the limiting plate 401; an extrusion part 10402 is arranged on the rear side of the fixed frame 104; and the extrusion part 10402 is located above the limiting plate 401.

[0027] Each limiting portion 40101 is configured to be in an arc shape, so that the subsequent fixing frame 104 can smoothly descend through the limiting portion 40101 and push the limiting plate 401 backward.

[0028] When conducting high and low temperature tests on the circuit board, the staff first inserts the circuit board to be tested into the fixing slot 2002 on each fixing rod 2001 in turn, and makes the wire plug port on the circuit board located at the upper part of the circuit board. In this process, the circuit board is guided by setting the fixing slot 2002 in an expanded shape, so that the staff can insert the circuit board into the fixing slot 2002. After the circuit board is fixed on the fixing rod 2001, the staff places the loading tray 2 in the test box 1 and makes the loading tray 2 snap into the calibration part 1001. After the circuit board is placed, the box door is closed, and then the telescopic end of the telescopic driving member 101 is controlled to extend, driving the slide rail 102, the electric slider 103 and the fixing frame 104 to descend, so that the fixing frame 104 drives the locking rod 3 and the support plate 4 to descend, and the combination Figure 3 It is understood that the locking rod 3 is overlapped to the upper side of the circuit board, and then the upper end of the circuit board is inserted into the locking groove 3001. The upper end of the circuit board is guided by setting the flared locking groove 3001 to facilitate the circuit board to be inserted into the locking groove 3001. At the same time, the support plate 4 is attached to the side of the circuit board where the wiring port is not set. It should be noted that initially, the locking groove 3001 on the locking rod 3 is directly opposite to the fixing groove 2002 on the corresponding fixing rod 2001. After the upper end of the circuit board is fixed by the locking rod 3, the telescopic driving member 101 is controlled to drive the slide rail 102, the electric slider 103 and the fixed frame 104 to continue to descend. At the same time, the electric slider 103 is controlled to drive the fixed frame 104 to slide to the left, so that the fixed frame 104 drives the locking rod 3 to slide to the left and descend at the same time. Figure 7 The locking rod 3 drives the upper end of the circuit board to move to the left and rotate. The locking rod 3 rotates with the rotation of the circuit board, and at the same time compresses the torsion spring on the locking rod 3. When the circuit board rotates, the fixing rod 2001 is driven to rotate on the loading tray 2, and at the same time, the torsion spring on the fixing rod 2001 is compressed, so that the circuit board is in a Figure 7 The tilted shape shown allows the wiring ports on the circuit board to leak out automatically, eliminating the need for subsequent staff to adjust them one by one, making it easier for subsequent staff to perform wiring work on the circuit board.

[0029] It is also considered that since the fixing rod 2001 can rotate on the loading tray 2, when the circuit board is plugged into the fixing rod 2001, the circuit board and the fixing rod 2001 are easy to rotate and deviate in the left and right directions on the loading tray 2, so that the locking rod 3 cannot normally dock with the upper end of the circuit board. Therefore, when the staff plugs the circuit board into the fixing rod 2001, the rear side of the circuit board is locked into the limiting part 40101 on the limiting plate 401, and the limiting part 40101 limits the rear side of the circuit board to prevent The circuit board rotates and deviates to the left and right directions on the loading tray 2 to ensure that the subsequent locking rod 3 and the upper end of the circuit board can be normally docked. When the fixed frame 104 drives the locking rod 3 to descend and dock with the upper end of the circuit board, the fixed frame 104 drives the extrusion part 10402 to be clamped into the front side of the limit plate 401 with the upper end tilted backward, and squeezes the limit plate 401 backward to separate the limit part 40101 from the rear side of the circuit board, thereby releasing the limit on the circuit board, so that the circuit board can be normally driven by the fixed frame 104 and the locking rod 3 to tilt.

[0030] When the locking rod 3 drives the circuit board to tilt, the telescopic driving member 202 is controlled to drive the plug row 203 to tilt and descend, so that the plug row 203 drives the plug 204 to be plugged into the plug port on the circuit board, thereby realizing convenient plugging of the circuit board. In summary, the present invention tilts the circuit board to make the plug port on the circuit board leak out, and at the same time controls the plug row 203 to drive the plug 204 to complete the plugging work. There is no need for the staff to pry open the circuit board for plugging in the wires, and there is no need for the staff to unplug the wires after the subsequent test is completed, thereby realizing the automation of plugging and unplugging of the circuit board, which not only improves the plugging and unplugging efficiency of the circuit board and reduces the workload of the staff, but also solves the problem that the lower end of the circuit board is twisted on the loading tray 2 because the staff pries the circuit board open on the loading tray 2 when plugging and unplugging the wires, thereby enhancing the protection effect of the circuit board and ensuring the normal testing of the circuit board.

[0031] When the plug 204 is inserted into the socket on the circuit board, the support plate 4 supports the opposite side of the socket on the circuit board, and the extension portion 3002 covers the edge of the circuit board to disperse the pressure when the plug 204 is inserted into the socket, thereby preventing the circuit board from bending and deforming due to excessive pressure when the plug 204 is plugged in, thereby enhancing the protection effect on the circuit board during the plugging process. After the plug 204 is inserted into the socket on the circuit board, the external power supply is controlled to supply power to the socket row 203, so that the socket row 203 supplies power to the circuit board through the plug 204, so that the circuit board works normally, and then the temperature in the test box 1 is controlled to increase, so that the circuit board works for a long time in a high temperature environment, and a high temperature resistance test is performed on the circuit board. After the high temperature resistance test is completed, the temperature in the test box 1 is controlled to decrease, so that the circuit board works for a long time in a low temperature environment, and a low temperature test is performed on the circuit board. After the test is completed, the telescopic drive is controlled Component 202 drives the plug row 203 to move, so that the plug row 203 drives the plug 204 to detach from the plug port on the circuit board, completing the convenient unplugging operation of the circuit board, and then controls the telescopic driving component 101 to drive the fixed frame 104 to rise, and at the same time controls the electric slider 103 to drive the fixed frame 104 to move horizontally, so that the fixed frame 104 drives the stopping rod 3 to move and reset, and drives the inclined circuit board on the loading tray 2 to reset. As the telescopic driving component 101 drives the fixed frame 104 to continue to rise, the fixed frame 104 drives the stopping rod 3 to separate from the circuit board, and then the staff takes the loading tray 2 loaded with the circuit board out of the test box 1 to complete the high and low temperature test of the circuit board. Then the staff uses the corresponding test equipment and software to detect the basic functions of the tested circuit board, and judges the working performance of the circuit board after passing through the high and low temperature environments, so as to obtain the high and low temperature test values ​​of the circuit board.

[0032] It is also considered that due to the different types of circuit boards, when testing different batches of circuit boards, there is a deviation in the position of the plug port on the circuit board. Therefore, after the staff places the circuit board on the fixing rod 2001, the plug port on the circuit board is located at the upper part of the circuit board. Then the staff can slide the movable block 201 horizontally on the sliding groove 10401 to make the telescopic drive member 202 and the plug row 203 move horizontally to align with the plug port on the circuit board, that is, drive the plug 204 to move and align with the plug port, and then control the telescopic drive member 301 to drive the connecting rod 302 to move, so that the connecting rod 302 slides in the movable groove 20401 on each plug 204, thereby rotating the plug 204 on the socket row 203, adjusting the inclination angle of the plug 204, and facilitating the insertion of the plug 204 into the socket. At the same time, the telescopic drive member 101 can be controlled to drive the fixed frame 104 to rise and fall, and the electric slider 103 can be controlled to drive the fixed frame 104 to move horizontally, thereby causing the fixed frame 104 to drive the locking rod 3 to move and adjust, so that the locking rod 3 adjusts the inclination angle of the circuit board on the fixed rod 2001, which is conducive to adapting to circuit boards with different socket positions and enhancing the adaptability of the equipment.

[0033] Example 2 On the basis of Example 1, Figure 2-Figure 5 As shown, it also includes a protective cover 501; a protective cover 501 is fixedly connected to all movable blocks 201; the protective cover 501 is located above the locking rod 3; an avoidance groove 50101 is opened on the protective cover 501; each plug 204 passes through the avoidance groove 50101 from top to bottom; and an elastic heat-insulating diaphragm is arranged in the avoidance groove 50101.

[0034] When the circuit board is subjected to high and low temperature tests, the protective cover 501 is used to protect the plug-in block 203 and the connection between the plug 204 and the plug-in block 203, so as to reduce the influence of the temperature change in the test box 1 on the plug-in block 203 and the connection between the plug 204 and the plug-in block 203, and to prevent the service life of the plug-in block 203 and the connection between the plug 204 and the plug-in block 203 from being reduced due to the influence of the test environment, and to avoid poor contact of the circuit board during the detection process, thereby ensuring the normal high and low temperature tests of the circuit board. When adjusting the plug-in angle of the plug 204, the plug 204 can move in the avoidance groove 50101. At the same time, the protective cover 501 is sealed by the elastic heat-insulating diaphragm in the avoidance groove 50101, thereby ensuring the sealing effect of the protective cover 501 on the connection between the plug-in block 203 and the plug 204, further reducing the influence of the temperature change in the test box 1 on the connection between the plug-in block 203 and the plug 204, which is beneficial to extending the service life of the plug-in block 203 and the plug 204.

[0035] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An automatic testing device for circuit board production, comprising a test box (1); characterized in that: The invention also comprises a loading tray (2), a driving assembly, a fixing frame (104), a locking rod (3), a support plate (4) and a plug-in assembly; the loading tray (2) is placed on the test box (1); a calibration portion (1001) for limiting and calibrating the loading tray (2) is provided on the test box (1); a plurality of fixing rods (2001) for fixing the lower end of a circuit board are rotatably connected to the loading tray (2); each fixing rod (2001) is provided with a fixing groove (2002); a driving assembly is provided on the test box (1); a fixing frame (104) is connected to the driving assembly, and the driving assembly is used to move the fixing frame (104) up and down and left and right; a plurality of locking rods (3) for fixing the upper end of the circuit board are rotatably connected to the fixing frame (104); each locking rod (3) is provided with a locking groove (3001); each locking rod (3) is provided with a support plate (4) for supporting the circuit board; and a plug-in assembly for convenient plugging is connected to the fixing frame (104).

2. The automatic test equipment for circuit board production according to claim 1, characterized in that: The driving assembly comprises a telescopic driving member (101), a slide rail (102) and an electric slider (103); a plurality of telescopic driving members (101) are fixedly connected to the test box (1); the telescopic ends of all the telescopic driving members (101) are fixedly connected to a slide rail (102); a plurality of electric sliders (103) are slidably connected to the slide rail (102); and the lower sides of all the electric sliders (103) are fixedly connected to a fixed frame (104).

3. The automatic test equipment for circuit board production according to claim 2, characterized in that: The plug-in assembly comprises a movable block (201), a telescopic drive member 2 (202), a plug-in row (203) and a plug (204); a plurality of telescopic drive members 2 (202) are connected to a fixed frame (104); the telescopic drive members 2 (202) are arranged in an inclined manner; the telescopic ends of all telescopic drive members 2 (202) are fixedly connected to a plug-in row (203); the plug-in row (203) is connected to an external power supply via electric wires; and a plurality of plugs (204) for supplying power to a circuit board are rotatably connected to the plug-in row (203).

4. The automatic test equipment for circuit board production according to claim 3, characterized in that: The invention also comprises an adjustment component, which comprises a telescopic drive member 3 (301) and a connecting rod (302); a plurality of sliding grooves (10401) are provided on the fixed frame (104); the telescopic drive member 2 (202) is slidably arranged in the corresponding sliding grooves (10401); the lower side of the plug row (203) is fixedly connected with the telescopic drive member 3 (301); the telescopic end of the telescopic drive member 3 (301) is fixedly connected with the connecting rod (302) for adjusting the tilt angle of the plug (204); each plug (204) is provided with a movable groove (20401); each plug (204) is slidably connected to the connecting rod (302) via the movable groove (20401).

5. The automatic test equipment for circuit board production according to claim 1, characterized in that: Each fixing groove (2002) is configured to be in a flared shape.

6. The automatic test equipment for circuit board production according to claim 1, characterized in that: Each card slot (3001) is configured to be in a flared shape.

7. The automatic test equipment for circuit board production according to claim 1, characterized in that: Each locking rod (3) is provided with a plurality of extension parts (3002) for protecting the circuit board.

8. The automatic test equipment for circuit board production according to claim 1, characterized in that: It also comprises a limiting plate (401); the limiting plate (401) is rotatably connected to the loading plate (2) for enhancing the fixing effect of the circuit board; the upper end of the limiting plate (401) is arranged to be tilted backward; a plurality of limiting portions (40101) are arranged on the limiting plate (401); a pressing portion (10402) is arranged on the rear side of the fixing frame (104); and the pressing portion (10402) is located above the limiting plate (401).

9. The automatic testing equipment for circuit board production according to claim 8, characterized in that: Each limiting portion (40101) is configured to be in an arc shape.

10. The automatic testing equipment for circuit board production according to claim 3, characterized in that: It also includes a protective cover (501); a protective cover (501) for protecting the plug strip (203) is fixedly connected to all the movable blocks (201); the protective cover (501) is located above the locking rod (3); an escape groove (50101) for escaping the plug (204) is provided on the protective cover (501); each plug (204) passes through the escape groove (50101) from top to bottom; and an elastic heat-insulating diaphragm is provided in the escape groove (50101).

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