Circuit board testing machine

Abstract

The embodiment of the utility model provides a circuit board testing machine, and the machine comprises a rack which is used for bearing a to-be-tested circuit board; the pressure testing assembly comprises a driving electric cylinder, a pressing plate and a servo driver, the driving electric cylinder and the servo driver are both installed on the rack, the servo driver is electrically connected with the driving electric cylinder, the driving electric cylinder is connected with the pressing plate, and the driving electric cylinder can drive the pressing plate to move towards or away from the circuit board to be tested; the fixing plate is connected with the rack and is opposite to the pressure measuring assembly in the horizontal direction; and the programmer is mounted on one side, opposite to the pressure measurement assembly, of the fixing plate and is electrically connected with the servo driver. By arranging the programmer, the servo driver and the driving electric cylinder, the pressing plate has good movement precision, the testing accuracy is improved, the risk that the circuit board to be tested is crushed is reduced, meanwhile, the programmer is installed on the side, back to the pressure testing assembly, of the fixing plate, programming input is facilitated, the space in the rack can be fully utilized, and occupied space is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board test technical field especially is related to a circuit board testing machine. BACKGROUND

[0002] After the circuit board is designed, it needs to be put into production through testing. In the testing process, the circuit board to be tested is placed on the base, and then the pressing plate with the contact pin is driven to move towards the circuit board to be tested, so that the contact pin contacts the corresponding electrical connection point of the circuit board to be tested to make the circuit board to be tested conductive.

[0003] In the related art, the top plate is usually driven to move by a pneumatic cylinder. Since the pneumatic cylinder has relatively low precision, the pressing plate may not be pressed far enough, the contact pin on the pressing plate may not be in good contact with the circuit board to be tested, the test result may be inaccurate, or the pressing plate may be pressed too far, and the circuit board to be tested may be damaged. SUMMARY

[0004] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a circuit board testing machine, which can improve the movement precision, improve the test accuracy and reduce the risk of damaging the circuit board to be tested.

[0005] The utility model embodiment provides a kind of circuit board testing machine, and circuit board testing machine includes: rack, for carrying the circuit board to be tested;Pressing test component, including drive electric cylinder, pressing plate and servo driver, the drive electric cylinder and the servo driver are all installed in the rack, the servo driver is electrically connected with the drive electric cylinder, the drive electric cylinder is connected with the pressing plate, the drive electric cylinder can drive the pressing plate towards or away from the circuit board to be tested movement;Fixed plate, with the rack is connected, and in horizontal direction with the pressing test component opposite;Programmer, installed in the fixed plate side away from the pressing test component, and with the servo driver electrically connected.

[0006] The circuit board testing machine provided by the utility model embodiment has at least the following beneficial effects:

[0007] By setting programmer, servo driver and drive electric cylinder, programmer can send control signal to servo driver, and servo driver controls drive electric cylinder to drive pressing plate movement according to control signal, and pressing plate has good movement precision, and pressing plate can be in good abutment with the circuit board to be tested, improve the test accuracy and reduce the risk of damaging the circuit board to be tested, and fixed plate is arranged, and programmer is installed on the side of fixed plate away from pressing test component, which is convenient for programming input, can fully utilize the space in rack, reduce space occupation, and is beneficial to reduce volume.

[0008] In one embodiment of the embodiment, the pressing and testing assembly comprises a mounting plate, the mounting plate is connected with the rack, the driving cylinder and the servo driver are mounted on the mounting plate, and the pressing plate is in sliding connection with the mounting plate.

[0009] In one embodiment of the embodiment, the pressing and testing assembly comprises a guide rod, the guide rod is connected with the pressing plate, the mounting plate is provided with a guide hole, and the guide rod is in sliding fit with the guide hole.

[0010] In one embodiment of the embodiment, the pressing and testing assembly comprises a guide sleeve, the guide sleeve is detachably connected with the mounting plate, and the guide sleeve is provided with the guide hole.

[0011] In one embodiment of the embodiment, the number of the guide sleeve and the guide rod is multiple, and the guide sleeve and the guide rod are in one-to-one sliding connection.

[0012] In one embodiment of the embodiment, the pressing and testing assembly comprises a mounting block, the mounting block is connected with the mounting plate, the servo driver is mounted on the mounting block and has a spacing distance with the mounting plate.

[0013] In one embodiment of the embodiment, the servo driver is mounted on the surface of the mounting block away from the fixing plate.

[0014] In one embodiment of the embodiment, the mounting plate is parallel to the horizontal plane, and the fixing plate is parallel to the vertical plane.

[0015] In one embodiment of the embodiment, at least one side of the fixing plate and the rack form a wire passing space in the horizontal direction parallel to the plane where the fixing plate is located, the circuit board testing machine comprises a cable, one end of the cable is connected with the programmer, the other end of the cable passes through the wire passing space and is connected with the servo driver.

[0016] In one embodiment of the embodiment, the circuit board testing machine comprises a sliding plate and a keyboard, the keyboard is arranged on the sliding plate, and the sliding plate is in sliding connection with the rack.

[0017] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0019] Figure 1 is a perspective structural schematic view of the circuit board testing machine in one embodiment of the embodiment of the present application;

[0020] Figure 2 is Figure 1 a circuit board testing machine in another perspective view;

[0021] Figure 3 is Figure 1 a pressure testing assembly of the circuit board testing machine.

[0022] Reference signs:

[0023] Circuit board testing machine 100; rack 10; bearing surface 101; pressure testing assembly 20; driving electric cylinder 21; pressing plate 22; servo driver 23; mounting plate 24; guide rod 25; guide sleeve 26; guide hole 261; mounting block 27; fixing plate 30; fixing surface 301; wire passing space 302; sliding plate 40. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used to explain the present application, and cannot be understood as a limitation of the present application.

[0025] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0026] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0027] In the description of the present application, unless otherwise explicitly limited, the words such as setting, mounting, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0028] In the description of the utility model, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] Please refer to Figure 1 and Figure 2 , Figure 1 It is a perspective structural schematic diagram of the circuit board testing machine 100 of one embodiment of the utility model embodiment; Figure 2 It is Figure 1 A perspective structural schematic diagram of the circuit board testing machine 100 at another viewing angle. The utility model embodiment provides a kind of circuit board testing machine 100, and the circuit board testing machine 100 includes rack 10, pressure measurement component 20, fixed plate 30 and programmer (not shown). Rack 10 is used to carry the circuit board to be tested. Pressure measurement component 20 includes drive electric cylinder 21, pressing plate 22 and servo driver 23, drive electric cylinder 21 and servo driver 23 are all installed in rack 10, servo driver 23 is electrically connected with drive electric cylinder 21, drive electric cylinder 21 is connected with pressing plate 22, drive electric cylinder 21 can drive pressing plate 22 towards or away from the movement of the circuit board to be tested. Fixed plate 30 is connected with rack 10, and it is opposite to pressure measurement component 20 in horizontal direction. Programmer is installed on the side of fixed plate 30 away from pressure measurement component 20, and is electrically connected with servo driver 23.

[0030] Specifically, rack 10 has bearing surface 101, bearing surface 101 is used to place the circuit board to be tested, pressing plate 22 is located above bearing surface 101, drive electric cylinder 21 can drive pressing plate 22 to approach bearing surface 101 in vertical direction to abut the circuit board to be tested, or drive pressing plate 22 to separate from the circuit board to be tested after testing is completed in vertical direction. Pressing plate 22 is provided with electric test piece (for example, contact pin), and the electric test piece can be conducted with the circuit board to be tested to test the circuit board to be tested. Fixed plate 30 includes fixed surface 301 away from drive electric cylinder 21, and programmer is installed on fixed surface 301. It can be understood that, by installing programmer on fixed plate 30, the space in rack 10 can be fully utilized. Programmer is used for worker to input program according to working condition, and programmer sends control signal to servo driver 23 according to program and worker's instruction, and servo driver 23 drives pressing plate 22 to move according to control signal, so that pressing plate 22 can be accurately pressed to preset position, which can not damage the circuit board to be tested, and also can make the circuit board to be tested test better.

[0031] By setting the programmer, the servo driver 23 and the driving cylinder 21, the programmer can send a control signal to the servo driver 23, and the servo driver 23 controls the driving cylinder 21 to drive the pressing plate 22 to move according to the control signal. The pressing plate 22 has good movement precision, and the pressing plate 22 can better abut against the circuit board to be tested, thereby improving the accuracy of the test and reducing the risk of the circuit board to be tested being damaged. Meanwhile, the fixed plate 30 is arranged, and the programmer is installed on the side of the fixed plate 30 away from the pressing and testing assembly 20, which facilitates programming input and makes full use of the space in the rack 10, reduces the space occupation, and is conducive to reducing the volume.

[0032] In an embodiment of the embodiment, referring to Figure 1 and Figure 3 , Figure 3 is Figure 1 a perspective structural schematic view of the pressing and testing assembly 20 of the circuit board testing machine 100. The pressing and testing assembly 20 comprises a mounting plate 24 connected with the rack 10, the driving cylinder 21 and the servo driver 23 are mounted on the mounting plate 24, and the pressing plate 22 is in sliding connection with the mounting plate 24. Specifically, the driving cylinder 21 and the servo driver 23 are mounted on the side of the mounting plate 24 away from the bearing surface 101, and the pressing plate 22 is located between the mounting plate 24 and the bearing surface 101. By arranging the mounting plate 24, the mounting mode of the driving cylinder 21, the servo driver 23 and the pressing plate 22 is relatively simple, and the whole can be easily disassembled.

[0033] In an embodiment of the embodiment, referring to Figure 1 and Figure 3 , the pressing and testing assembly 20 comprises a guide rod 25 connected with the pressing plate 22, and the mounting plate 24 is provided with a guide hole 261 in sliding fit with the guide rod 25. Specifically, the guide rod 25 extends in the vertical direction, and the axis direction of the guide hole 261 is parallel to the vertical direction. In this way, the movement precision of the pressing plate 22 can be improved, which is conducive to improving the accuracy of the test and reducing the risk of the circuit board to be tested being damaged.

[0034] In an embodiment of the embodiment, referring to Figure 1 and Figure 3 , the pressing and testing assembly 20 comprises a guide sleeve 26 in detachable connection with the mounting plate 24, and the guide sleeve 26 is provided with a guide hole 261. In this way, the guide sleeve 26 can be replaced to ensure the movement precision of the pressing plate 22.

[0035] In an embodiment of the embodiment, referring to Figure 1 and Figure 3The number of the guide sleeves 26 and the guide rods 25 is multiple, and the guide sleeves 26 and the guide rods 25 are in one-to-one sliding connection. Specifically, in the embodiment, the number of the guide sleeves 26 and the guide rods 25 is two, and the two groups of guide sleeves 26 and guide rods 25 are respectively located on the two sides of the driving cylinder 21 in the horizontal direction. By setting the multiple guide sleeves 26 and the multiple guide rods 25 in one-to-one sliding connection, the movement accuracy of the pressing plate 22 can be further improved.

[0036] In an embodiment of the embodiment, please refer to Figure 1 and Figure 3 The pressing assembly 20 includes a mounting block 27, the mounting block 27 is connected with the mounting plate 24, the servo driver 23 is installed on the mounting block 27, and the mounting plate 24 has a spacing distance. In this way, the servo driver 23 can be in full contact with the air, and the heat dissipation efficiency of the servo driver 23 is improved.

[0037] In some embodiments, the rack 10 can also include a fan, and the servo driver 23 is located in the air path provided by the fan, so that the airflow of the fan can dissipate heat for the servo driver 23.

[0038] In an embodiment of the embodiment, please refer to Figure 1 and Figure 3 The servo driver 23 is installed on the surface of the mounting block 27 away from the fixing plate 30. In this way, it is convenient for workers to install and debug the servo driver 23.

[0039] In an embodiment of the embodiment, please refer to Figure 1 and Figure 3 The mounting plate 24 is parallel to the horizontal plane, and the fixing plate 30 is parallel to the vertical plane. In this way, the space occupation can be reduced, and the miniaturization design of the equipment can be facilitated.

[0040] In an embodiment of the embodiment, please refer to Figure 1 and Figure 3 In the horizontal direction parallel to the plane where the fixing plate 30 is located, at least one side of the fixing plate 30 and the rack 10 form a wire passing space 302, and the circuit board testing machine 100 includes a cable (not shown), one end of the cable is connected with the programmer, and the other end of the cable passes through the wire passing space 302 and is connected with the servo driver 23. In this way, the programmer and the servo driver 23 are electrically connected, the space requirement is low, and the miniaturization design of the equipment can be facilitated.

[0041] Specifically, in the embodiment, the fixing plate 30 forms the wire passing space 302 between the two sides of the fixing plate 30 and the rack 10 in the horizontal direction parallel to the plane where the fixing plate 30 is located.

[0042] In an embodiment of the embodiment, please refer to Figure 1 and Figure 3 Figure 1 Figure 3The circuit board testing machine 100 comprises a sliding plate 40 and a keyboard (not shown) arranged on the sliding plate 40 and slidingly connected with the rack 10.

[0043] The above has made a detailed description of the embodiments of the utility model in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. A circuit board tester characterized by comprising: The circuit board testing machine comprises a rack for carrying a circuit board to be tested, a pressing assembly, a fixed plate, a programmer and a slide plate. The pressing assembly comprises a driving cylinder, a pressing plate and a servo driver, the driving cylinder and the servo driver are mounted on the rack, the servo driver is electrically connected with the driving cylinder, the driving cylinder is connected with the pressing plate, and the driving cylinder can drive the pressing plate to move towards or away from the circuit board to be tested. The fixed plate is connected with the rack and is opposite to the pressing assembly in the horizontal direction. The programmer is mounted on the side of the fixed plate away from the pressing assembly and is electrically connected with the servo driver. The pressing assembly comprises a mounting plate, the mounting plate is connected with the rack, and the driving cylinder and the servo driver are mounted on the mounting plate.

2. The circuit board tester of claim 1, wherein, The pressing assembly comprises a guide rod, the guide rod is connected with the pressing plate, the mounting plate is provided with a guide hole, and the guide rod is slidably connected with the guide hole.

3. The circuit board tester of claim 2, wherein, The pressing assembly comprises a guide sleeve, the guide sleeve is detachably connected with the mounting plate, and the guide sleeve is provided with the guide hole.

4. The circuit board tester of claim 3, wherein, The number of the guide sleeve and the guide rod is plural, and they are slidably connected one by one.

5. The circuit board tester of claim 4, wherein, The pressing assembly comprises a mounting block, the mounting block is connected with the mounting plate, the servo driver is mounted on the mounting block and has a spacing distance with the mounting plate.

6. The circuit board tester of claim 2, wherein, The servo driver is mounted on the surface of the mounting block away from the fixed plate.

7. The circuit board tester of claim 6, wherein, The mounting plate is parallel to the horizontal plane, and the fixed plate is parallel to the vertical plane.

8. The circuit board tester of claim 2, wherein, At least one side of the fixed plate and the rack form a wire passing space in the horizontal direction parallel to the plane where the fixed plate is located, the circuit board testing machine comprises a cable, one end of the cable is connected with the programmer, and the other end of the cable passes through the wire passing space and is connected with the servo driver.

9. The circuit board tester of claim 1, wherein, The circuit board testing machine comprises a slide plate and a keyboard, the keyboard is arranged on the slide plate, and the slide plate is slidably connected with the rack.

10. The circuit board tester of claim 1, wherein, ​

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