Circuit board FCT test tool

Abstract

The utility model discloses a circuit board FCT test tool, which comprises a test box body, a test needle bed, a lower support plate, an upper support plate and a protective cover plate, the upper surface of the test box body is open, the test needle bed is installed at the opening of the test box body in a lifting mode, the lower support plate used for placing a test plate is installed on the test needle bed, and the protective cover plate is installed on the upper support plate. Probes on the test needle bed are located below the lower carrier plate, one side of the upper carrier plate is rotatably connected with one side of the lower carrier plate through a pin shaft, the protective cover plate is installed on the upper surface of the upper carrier plate, a plurality of elastic pressing rods are arranged on the lower surface of the upper carrier plate, and a tool circuit board is arranged in the test box body. The whole structure is simple, testing is convenient, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board test technical field, concretely relates to a circuit board FCT test frock. BACKGROUND

[0002] The existing FCT test platform for bearing circuit board has the following problems: 1, the FCT test platform is designed as cabinet type, the upper layer of the cabinet is the space of cylinder power supply and control, the lower layer of the cabinet is the space of electric device arrangement for realizing test function, the middle layer position is the test needle bed placement position, the stroke is relatively limited, leading to the easy collision of circuit board in the process of taking and placing; 2, the circuit board placement surface of the FCT test platform is in front of personnel, not below, and because the power board is generally heavy, so the personnel operation fatigue is big; 3, the FCT test platform uses corresponding host computer software for different circuit boards, and the management is complicated, and new circuit board needs to write host computer software, wasting time.

[0003] In summary, the existing FCT test platform for circuit board is inconvenient to use, easy to damage circuit board and waste cost. INVENTION CONTENTS

[0004] The utility model discloses a kind of circuit board FCT test frock, which is to overcome the deficiencies of prior art.

[0005] To achieve the above object, the utility model adopts the technical scheme of: a kind of circuit board FCT test frock, including test box body, test needle bed, download board, upload board and protective cover plate, the upper surface of the test box body is open, the test needle bed is installed in the open of the test box body and is lifted, the download board for placing test board is installed on the test needle bed, the probe on test needle bed is below the download board, the upload board is rotatably connected with the side of download board by pin shaft, the protective cover plate is installed on the upper surface of the upload board, a plurality of elastic pressure rods are arranged on the lower surface of the upload board, a frock circuit board is arranged in the test box body, the frock circuit board includes adapter board, relay board, signal acquisition board, power board and control board, the adapter board is used to connect probe and relay board, and circuit board signal is connected on relay board;The relay board is connected with power board, and power board signal is input to circuit board, and circuit board feedback signal is output;The signal acquisition board is used to collect input voltage, PWM wave and communication signal, and power board signal is input to circuit board and the output signal feedback of circuit board is collected to host computer;Control board is connected with relay board, controls the closure of relay, and power board signal is input to circuit board.

[0006] As a specific embodiment, the test needle bed is installed on the test box body by hydraulic rod I and is lifted, the hydraulic rod I has two roots, and is symmetrically arranged on the left and right sides of the test needle bed.

[0007] As a specific embodiment, a hydraulic rod II for opening and closing the uploading plate is arranged between the uploading plate and the downloading plate, one end of the hydraulic rod II is hinged to the side edge of the downloading plate, the other end is hinged to the side edge of the uploading plate, and the two hydraulic rods II are symmetrically arranged on the left and right sides of the uploading plate.

[0008] As a specific embodiment, a elastic pressing plate is arranged between the uploading plate and the protective cover plate.

[0009] As a specific embodiment, a locking assembly for locking the uploading plate and the downloading plate is arranged between the uploading plate and the downloading plate.

[0010] As a specific embodiment, the locking assembly comprises a fixed part and a movable part, the fixed part comprises a fixed plate, the fixed plate is installed on the front side of the uploading plate through a fixed rod, the fixed plate is arranged in parallel with the front side of the uploading plate, and the fixed rod has two ends, which are arranged on the two ends of the fixed plate, respectively; the movable part comprises a movable plate with a through hole, the movable plate is correspondingly sleeved on the fixed rod through the through hole and is movably arranged along the length direction of the fixed rod, a clamping hook is arranged on the side bottom of the movable plate facing the uploading plate, a clamping groove is arranged on the front side of the downloading plate, a spring is sleeved on the fixed rod, one end of the spring abuts against the through hole of the movable part, and the other end of the spring abuts against the fixed plate, when the uploading plate is closed on the downloading plate, the clamping hook on the movable plate is clamped into the clamping groove of the downloading plate, and the spring is in an extended state; when the uploading plate needs to be opened, the movable plate is pulled to move the movable plate to the fixed plate, the spring is pressed, and the clamping hook on the movable plate is separated from the clamping groove.

[0011] Thanks to the technical scheme, the circuit board FCT test tool has the following advantages compared with the prior art: the circuit board FCT test tool has simple structure and convenient operation, improves production efficiency, and sets the tool circuit board including the adapter plate, the relay plate, the signal acquisition plate, the power supply plate and the control plate in the test box, so that the integrated test tool can be built according to the type of the circuit board according to different test requirements of the circuit board, and the limitation of the platform is avoided, and only one host computer is needed to build a software environment. The test tool changes the traditional cabinet control of the test needle bed lifting device to integrated control of the needle bed, increases the placement space of the circuit board, and avoids the problem that the taking and placing process is limited by stroke. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 Fig. 1 is a perspective view of the circuit board FCT test tool according to the present application;

[0013] Figure 2 Fig. 2 is a structural schematic view of the circuit board FCT test tool when the uploading plate is opened.

[0014] Figure 3 The structure diagram of the circuit board FCT test tool when the test needle bed is rising;

[0015] Figure 4 The structure diagram of the fixed part and the movable part;

[0016] Figure 5 The connection relationship diagram between the components in the tool circuit board;

[0017] In the figure, 1 is a test box body; 2 is a test needle bed; 3 is a download plate; 4 is an upload plate; 5 is a protective cover plate; 6 is an elastic pressing rod; 7 is an elastic pressing plate; 8 is an air inlet valve; 9 is a hydraulic rod I; 10 is a hydraulic rod II; 11 is a fixed part; 111 is a fixed plate; 112 is a fixed rod; 12 is a movable part; 121 is a movable plate; 122 is a through hole; 123 is a clamping hook; 13 is a spring; 14 is a probe; 31 is a clamping groove; 15 is an air inlet opening button; 16 is an air inlet closing button. DETAILED DESCRIPTION

[0018] The technical scheme of the utility model will be further described below in combination with the accompanying drawings and specific embodiments. Figures 1-5

[0019] The utility model provides a kind of circuit board FCT test tool, referring to Figure 1 As shown in the figure, it includes test box body 1, test needle bed 2, download plate 3, upload plate 4 and protective cover plate 5.

[0020] Here, the upper surface of test box body 1 is open, and test needle bed 2 is installed at the opening of test box body 1, and the download plate 3 for placing the test plate is installed on the test needle bed 2, and the probe 14 on the test needle bed 2 is below the download plate 3, and the upload plate 4 is connected with one side of the download plate 3 by pin shaft rotation, and the protective cover plate 5 is installed on the upper surface of the upload plate 4, and a plurality of elastic pressing rods 6 are arranged on the lower surface of the upload plate 4, and when the upload plate 4 is closed on the download plate 3, the elastic pressing rods 6 are pressed on the upper surface of the test plate.

[0021] A tool circuit board is arranged in test box body 1, which includes adapter plate, relay plate, signal acquisition plate, power supply plate and control plate, referring to Figure 5 As shown in the figure, the adapter plate is used to connect the probe and the relay plate, and the circuit board signal is connected on the relay plate; the relay plate is connected with the power supply plate, the power supply plate signal is input to the circuit board, and the circuit board feedback signal is output; the signal acquisition plate is used to acquire input voltage, PWM wave and communication signal, and the power supply plate signal is input to the circuit board and the output signal of the circuit board is acquired and fed back to the host computer (computer); the control plate is connected with the relay plate, the closure of the relay is controlled, and the power supply plate signal is input to the circuit board.​

[0022] Here, the test box body 1 is provided with a tooling circuit board integrated with a relay board, a signal acquisition board, a power supply board and a control board, and a single test needle bed mode is adopted. According to different test requirements of the circuit board, the type of the circuit board can be selected to build an integrated test tooling. Only one computer is needed to build a software environment, which is convenient to operate.

[0023] Here, the probe 14 is placed below the download board 3, and the upper part of the download board 3 is used to place the circuit board to be tested, so that the placement space of the circuit board is increased and is not limited by the stroke during taking and placing.

[0024] An air inlet valve 8 connected with an external air supply device is arranged on the side of the test box body 1. The air inlet valve 8 is connected with the probe 14 through an air inlet pipe. When the circuit board to be tested is placed on the download board 3 and needs to be detected, the air inlet valve 8 is opened to make the probe 14 pass through the test hole on the download board 3 and press on the test point of the circuit board to be tested. After testing, the air inlet valve 8 is closed to make the probe 14 separate from the circuit board to be tested. In this example, an air inlet opening button and an air inlet closing button are arranged on the test box body 1, and the air inlet opening button and the air inlet closing button are electrically connected with the air inlet valve 8 respectively to control the opening and closing of the air inlet valve 8.

[0025] In addition, the test needle bed 2 is installed on the test box body 1 by a hydraulic rod I 9. As shown in Figure 3 , the hydraulic rod I 9 has two roots and is symmetrically arranged on the left and right sides of the test needle bed 2.

[0026] A hydraulic rod II 10 for opening and closing the upload board 4 is arranged between the upload board 4 and the download board 3. As shown in Figure 2 , one end of the hydraulic rod II 10 is hinged to the side edge of the download board 3, and the other end is hinged to the side edge of the upload board 4. The hydraulic rod II 10 has two roots and is symmetrically arranged on the left and right sides of the upload board 4.

[0027] Here, the lifting of the test needle bed 2 is realized by the hydraulic rod I 9, and the opening and closing of the upload board 4 are realized by the hydraulic rod II 10.

[0028] Here, a elastic pressing plate 7 is arranged between the upload board 4 and the protective cover plate 5 to prevent hard contact between the two and damage the upload board 4. Here, the protective cover plate 5 and the upload board 4 are movably connected, and the two can be fixedly connected during use.

[0029] In addition, in this example, a locking assembly is arranged between the upload board 4 and the download board 3 to lock the two. Specifically, as shown in Figure 4As shown, the locking assembly comprises a fixed part 11 and a movable part 12, the fixed part 11 comprises a fixed plate 111, the fixed plate 111 is installed on the front side of the upper loading plate 4 through a fixed rod 112, the fixed plate 111 is arranged in parallel with the front side of the upper loading plate 4, the fixed rod 112 has two, which are arranged on the two ends of the fixed plate 111 respectively; the movable part 12 comprises a movable plate 121 with a through hole 122, the through hole 122 has two, corresponding to the fixed rod 112, the movable plate 121 is sleeved on the fixed rod 112 through the through hole 122 and is movably arranged along the length direction of the fixed rod 112, a clamping hook 123 is arranged on the side bottom of the movable plate 121 towards the upper loading plate 4, a clamping groove 31 is arranged on the front side of the lower loading plate 3, a spring 13 is sleeved on the fixed rod 112, one end of the spring 13 abuts against the through hole 122 of the movable part 12, and the other end of the spring 13 abuts against the fixed plate 111.

[0030] When the upper loading plate 4 is covered on the lower loading plate 3, the clamping hook 123 on the movable plate 121 is clamped into the clamping groove 31 of the lower loading plate 3, so that the upper loading plate 4 is locked with the lower loading plate 3, and at the moment, the spring 13 is in an extended state; when the upper loading plate 4 needs to be opened, the movable plate 121 is pulled, so that the movable plate 121 is moved towards the fixed plate 111, the spring 13 is pressed, and the clamping hook 123 on the movable plate 121 is separated from the clamping groove 31, so that the upper loading plate 4 is unlocked with the lower loading plate 3.

[0031] When the test tool of the utility model is used for testing a circuit board, the specific steps are as follows:

[0032] 1) the movable plate 121 is pulled, the clamping hook 123 on the movable plate 121 is separated from the clamping groove 31 on the lower loading plate 3, the upper loading plate 4 is separated from the lower loading plate 3, and the upper loading plate 4 is opened;

[0033] 2) the circuit board to be tested is placed on the lower loading plate 3, the upper loading plate 4 is pulled down and covered, the clamping hook 123 on the movable plate 121 is slid into the clamping groove 31, and the upper loading plate 4 is locked with the lower loading plate 3;

[0034] 3) the air inlet opening button 15 is pressed, the air inlet valve 8 is opened, the probe 14 below the lower loading plate 3 passes through the test hole on the lower loading plate 3 and abuts against the test point of the circuit board to be tested, then the upper computer (computer) is opened for testing;

[0035] 4) after the testing is completed, the air inlet closing button 16 is pressed, the air inlet valve 8 is closed, the probe 14 is separated from the circuit board to be tested, then the upper loading plate 4 is opened, and the circuit board can be taken down.

[0036] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A circuit board FCT test tool, characterized by, The utility model provides a test box, test needle bed, download board, upload board and protective cover, the upper surface of test box is open, test needle bed is installed in the open of test box and is lifted, test needle bed installs download board for placing test board, the probe on test needle bed is below download board, upload board is connected with one side of download board through pin shaft rotation, the upper surface of protective cover is installed on upload board, the lower surface of upload board is provided with a plurality of elastic pressure rod, the tooling circuit board is arranged in test box, the tooling circuit board includes adapter board, relay board, signal acquisition board, power board and control board, the adapter board is used for connecting probe and relay board, and the circuit board signal is connected on the relay board, the relay board connects power board, and power board signal is input to the circuit board, and the circuit board feedback signal is output, the signal acquisition board is used for collecting input voltage, PWM wave and communication signal, and power board signal is input to the circuit board, and the output signal feedback of circuit board is collected to the host computer, and the control board is connected with relay board, controls the closure of relay, and power board signal is input to the circuit board.

2. The circuit board FCT test handler of claim 1 wherein, The test needle bed is installed on the test box through the hydraulic rod I, and the hydraulic rod I has two roots and is symmetrically arranged on the left and right sides of the test needle bed.

3. The circuit board FCT test handler of claim 1 wherein, A hydraulic rod II for opening and closing the upload board is arranged between the upload board and the download board, one end of the hydraulic rod II is hinged to the side edge of the download board, the other end is hinged to the side edge of the upload board, and the hydraulic rod II has two roots and is symmetrically arranged on the left and right sides of the upload board.

4. The circuit board FCT test handler of claim 1 wherein, An elastic pressing plate is arranged between the upload board and the protective cover.

5. The circuit board FCT test handler of claim 1 wherein, A locking assembly for locking the upload board and the download board is arranged therebetween.

6. A circuit board FCT test handler according to claim 5, wherein, The locking assembly comprises a fixed part and a movable part, the fixed part comprises a fixed plate, the fixed plate is installed on the front side of the upload board through a fixed rod, the fixed plate is arranged in parallel with the front side of the upload board, the fixed rod has two roots and is arranged on the two ends of the fixed plate respectively, the movable part comprises a movable plate with a through hole, the movable plate is correspondingly sleeved on the fixed rod through the through hole and is movably arranged along the length direction of the fixed rod, a clamping hook is arranged on the side bottom of the movable plate facing the upload board, a clamping groove is arranged on the front side of the download board, a spring is sleeved on the fixed rod, one end of the spring abuts against the through hole of the movable part, the other end abuts against the fixed plate, when the upload board is closed on the download board, the clamping hook on the movable plate is clamped into the clamping groove of the download board, and the spring is in the stretched state, when the upload board needs to be opened, the movable plate is pulled to make the movable plate close to the fixed plate, the spring is squeezed, and the clamping hook on the movable plate is separated from the clamping groove.

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