CN220795412U

CN220795412U - PCB key switch detecting machine

Info

Publication number: CN220795412U
Application number: CN202322439263.XU
Authority: CN
Inventors: 王关根; 李军
Original assignee: Zhongshan Diligent Photoelectric Technology Co ltd
Current assignee: Zhongshan Diligent Photoelectric Technology Co ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2024-04-16
Anticipated expiration: 2033-09-07

Abstract

The utility model discloses a PCB key switch detection machine, which comprises a frame, wherein at least one detection table is arranged in the frame, a plurality of detection probe needle boards are arranged on the detection table, and a plurality of test probes are arranged on the detection probe needle boards; a plurality of key switches are arranged on the key switch board in an array manner at positions corresponding to the test probes; the upper side of the test probe is provided with a fixing device, the upper side of the fixing device is provided with a pressing device, the pressing device is connected with a longitudinal moving device, and the longitudinal moving device is connected with a transverse moving device. The test probe card and the key switch board can be directly embedded into the positioning board of the test table and further fixed through the fixing device, so that displacement in the test process is avoided, and the connection stability is improved; meanwhile, the utility model can drive the pressing device to continuously test a plurality of key switches, thereby improving the number of key switches detected each time and improving the testing efficiency.

Description

PCB key switch detecting machine

Technical Field

The utility model relates to the technical field of automatic detection equipment, in particular to a PCB key switch detection machine.

Background

With the development of the electronic industry, household appliances such as televisions, fans, microwave ovens and other household appliances such as range hoods are widely used, key switches are very important parts on the household appliances and can control the on-off of the household appliances, and the key switches are very easy to damage in the frequent use process of the household appliances, so that the household appliances cannot be normally used, and therefore, after the key switches are produced, whether the functions of the keys are normal is usually required to be checked.

However, most of the existing key switch detection devices need to manually place the key switch on the positioning plate of the detection table, and meanwhile, the positioning plate needs to be manually locked, so that the installation efficiency is low; and current check out test set up a plurality of ejector pins on the horizontal pole generally, so can test a plurality of key switches simultaneously, but in order to guarantee the stability of horizontal pole and avoid the size of equipment great, the horizontal pole can not set up longer, and this just leads to the ejector pin quantity of its below also can not set up too much, consequently causes the detection efficiency of current check out test set not can effectual improvement.

Disclosure of Invention

The utility model aims to provide a PCB key switch detection machine, which optimizes the structure of a fixing device, improves the installation efficiency, and simultaneously increases a transverse moving device and a longitudinal moving device, improves the number of key switches detected each time, and improves the detection efficiency.

To achieve the purpose, the utility model adopts the following technical scheme:

the PCB key switch detection machine comprises a frame, wherein at least one detection table is arranged in the frame, a plurality of detection probe needle boards are arranged on the detection table, and a plurality of test probes are arranged on the detection probe needle boards and are used for testing key switch boards; a plurality of key switches are arranged on the key switch board in an array manner at positions corresponding to the test probes; a fixing device is arranged above the test probe and can move up and down to fix or loosen the key switch board, a pressing device is also arranged above the fixing device, and the pressing device is connected with a longitudinal moving device and is used for driving the pressing device to move up and down to control the key switch to be opened and closed; the longitudinal moving device is also connected with a transverse moving device which is used for driving the pressing device to move back and forth so as to detect key switches of different arrays.

As a preferable scheme of the PCB key switch detection machine, the detection table comprises a base and a positioning plate arranged on the base, wherein the bottom surface of the positioning plate is provided with a plurality of first positioning grooves for fixing a detection probe needle plate; the top surface of the positioning plate is provided with a second positioning groove for fixing the key switch plate; a plurality of first strip through holes are formed between the first positioning grooves and the second positioning grooves so as to expose the test probes, and the test probes are connected with the key switches.

As a preferred scheme of PCB key switch detection machine, fixing device is including installing the drive cylinder of detecting the platform both sides, be connected with the fixed plate on the drive cylinder for fixed key switch board, set up a plurality of second rectangular through-holes on the fixed plate, in order to expose key switch on the key switch board.

As a preferred scheme of the PCB key switch detection machine, the pressing device comprises a fixed block arranged below the longitudinal moving device, and a plurality of pressing probes are arranged on the fixed block at intervals and used for controlling the opening and closing of the key switch.

As a preferable scheme of the PCB key switch detection machine, the longitudinal movement device comprises a first servo motor, the first servo motor is connected with a first screw rod, the first screw rod is connected with a moving plate in a sliding manner, and the fixed block is arranged below the moving plate.

As a preferred scheme of PCB key switch detects machine, lateral shifting device includes the fixing base, second servo motor and second lead screw are installed to one side interval of fixing base, the second servo motor with connect through driving belt between the second lead screw, the second lead screw passes the one end of fixing base is provided with first connecting plate, first connecting plate with the movable plate is connected.

As a preferable scheme of the PCB key switch detection machine, the end parts of the first connecting plates are all provided with guide rods, the guide rods penetrate through the fixing seats to be connected with the second connecting plates, and one end of the second screw rod is fixed on the second connecting plates.

The utility model has the beneficial effects that:

(1) The detection table adopts the embedded positioning plate, the detection probe pin plate and the key switch plate can be directly embedded into the positioning plate, and the key switch plate is further fixed through the fixing device, so that the connection stability of the test probe and the key switch is improved, and meanwhile, the displacement in the test process is avoided.

(2) According to the fixing device, the fixing plate is driven to move upwards through the driving air cylinder to expose the test probes on the positioning plate, a tester only needs to embed the key switch plate into the positioning plate to enable the key switch to be electrically connected with the test probes, then the driving air cylinder is used for driving the fixing plate to move downwards to fix the key switch plate, the positioning mode is simple and convenient, the fixing seat is not required to be locked manually, and the installation efficiency is high.

(3) According to the utility model, the transverse moving device and the longitudinal moving device are respectively arranged, so that the pressing device can be driven to continuously test the key switches of different arrays on the key switch board, the number of the key switches detected each time is effectively increased, and the testing efficiency is improved.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are required to be used in the embodiments of the present utility model will be briefly described below. It is evident that the drawings described below are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural diagram of a PCB key switch detecting machine according to an embodiment of the present utility model.

Fig. 2 is a schematic structural diagram of components on a test table according to an embodiment of the utility model.

Fig. 3 is a schematic diagram illustrating a disassembly structure of a test bench according to an embodiment of the utility model.

Fig. 4 is a schematic top structure of a positioning plate according to an embodiment of the utility model.

Fig. 5 is a schematic bottom structure of a positioning plate according to an embodiment of the utility model.

Fig. 6 is a schematic structural view of a fixing device according to an embodiment of the present utility model.

Fig. 7 is a schematic view of a pressing device and a longitudinal moving device according to an embodiment of the present utility model.

Fig. 8 is a schematic view of a structure of a lateral movement device according to an embodiment of the utility model.

Fig. 9 is a schematic view of another view of a lateral shifting device according to an embodiment of the present utility model.

In fig. 1 to 9:

1. a frame;

2. a detection table; 21. a base; 22. a positioning plate; 221. a first positioning groove; 222. a second positioning groove; 223. a first elongated through hole;

3. testing probe card; 4. a test probe; 5. a key switch board; 6. a key switch;

7. a fixing device; 71. a driving cylinder; 72. a fixing plate; 73. a second elongated through hole;

8. a pressing device; 81. a fixed block; 82. pressing the probe;

9. a longitudinal movement device; 91. a first servo motor; 92. a first screw rod; 93. a moving plate;

10. a lateral movement device; 101. a fixing seat; 102. a second servo motor; 103. a second screw rod; 104. a drive belt; 105. a first connection plate; 106. a guide rod; 107. and a second connecting plate.

Detailed Description

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, rather than indicating or implying that the apparatus or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and should not be construed as limiting the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.

In the description of the present utility model, unless explicitly stated and limited otherwise, the term "coupled" or the like should be interpreted broadly, as it may be fixedly coupled, detachably coupled, or integrally formed, as indicating the relationship of components; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two parts or interaction relationship between the two parts. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, the utility model provides a PCB key switch detecting machine, which comprises a frame 1, wherein at least one detecting table 2 is arranged in the frame 1, a plurality of detecting probe needle boards 3 are arranged on the detecting table 2, and a plurality of detecting probes 4 are arranged on the detecting probe needle boards 3 and are used for detecting key switch boards 5; a plurality of key switches 6 are arranged on the key switch board 5 in an array manner at positions corresponding to the test probes 4; a fixing device 7 is arranged above the test probe 4, the fixing device 7 can move up and down to fix or loosen the key switch board 5, a pressing device 8 is also arranged above the fixing device 7, and the pressing device 8 is connected with a longitudinal moving device 9 for driving the pressing device 8 to move up and down to control the key switch 6 to be opened and closed; the longitudinal movement means 9 are also connected to lateral movement means 10 for driving the pressing means 8 to move back and forth to detect different arrays of key switches 6.

In this embodiment, the transverse moving device 10 and the longitudinal moving device 9 are respectively arranged, so that the pressing device 8 can be driven to continuously test the key switches 6 of different arrays on the key switch board 5, the number of the key switches 6 detected each time is effectively increased, and the testing efficiency is improved.

As shown in fig. 3 to 5, the inspection bench 2 of the present embodiment includes a base 21 and a positioning plate 22 mounted on the base 21, the bottom surface of the positioning plate 22 being provided with a plurality of first positioning grooves 221 for fixing the inspection probe card 3; the top surface of the positioning plate 22 is provided with a second positioning groove 222 for fixing the key switch plate 5; a plurality of first strip through holes 223 are arranged between the first positioning grooves 221 and the second positioning grooves 222 to expose the test probes 4, so that the test probes 4 are connected with the key switches 6. The detection platform 2 of this embodiment has adopted mosaic locating plate 22, and test probe board 3 and key switch board 5 can directly imbed in the locating plate 22 to can further fix key switch board 5 through fixing device 7, promote test probe 4 and key switch 6's connection stability, avoid taking place the displacement in the test process simultaneously.

As shown in fig. 6, the fixing device 7 of the present embodiment includes driving cylinders 71 mounted on two sides of the detection table 2, a fixing plate 72 is connected to the driving cylinders 71 for fixing the keyswitch board 5, and a plurality of second elongated through holes 73 are formed in the fixing plate 72 to expose the keyswitches 6 on the keyswitch board 5. When the test is required, the driving air cylinder 71 moves the driving fixing plate 72 upwards to expose the test probe 4 fixedly connected with the positioning plate 22 below, the tester embeds the key switch plate 5 into the positioning plate 22 to enable the key switch 6 to be electrically connected with the test probe 4, and then the driving air cylinder 71 drives the fixing plate 72 to move downwards to fix the key switch plate 5, so that the positioning mode is simple and convenient, the positioning plate 22 of the detection table 2 is not required to be locked manually, and the installation efficiency is improved.

As shown in fig. 7, the pressing device 8 of the present embodiment includes a fixed block 81 installed below the longitudinal moving device 9, and a plurality of pressing probes 82 are disposed on the fixed block 81 at intervals, and the pressing probes 82 can contact with the key switches 6 under the driving of the transverse moving device 10 and the longitudinal moving device 9, so as to control the opening and closing of the key switches 6.

Specifically, the longitudinal moving apparatus 9 of the present embodiment includes a first servo motor 91, the first servo motor 91 is connected with a first screw rod 92, the first screw rod 92 is slidably connected with a moving plate 93, and the fixed block 81 is mounted below the moving plate 93.

As shown in fig. 8 and 9, the lateral movement device 10 of the present embodiment includes a fixed seat 101, a second servo motor 102 and a second screw rod 103 are installed at intervals on one side of the fixed seat 101, the second servo motor 102 is connected with the second screw rod 103 through a transmission belt 104, a first connection plate 105 is provided at one end of the second screw rod 103 penetrating through the fixed seat 101, the first connection plate 105 is connected with the moving plate 93, a guide rod 106 is further provided at an end of the first connection plate 105, the guide rod 106 penetrates through the fixed seat 101 to be connected with a second connection plate 107, and one end of the second screw rod 103 is fixed on the second connection plate 107.

After the key switch board 5 is fixed, the second servo motor 102 drives the second screw rod 103 to rotate, so that the longitudinal moving device 9 on the first connecting board 105 is driven to move forward to be right above the first row of the key switch board 5, then the first servo motor 91 of the longitudinal moving device 9 drives the first screw rod 92 to rotate, so that the pressing device 8 on the moving board 93 is driven to move downwards, and the pressing probe 82 contacts with the key switch 6 and triggers the switch, so that whether the key switch 6 can be normally used is detected; after the first row of tests is completed, the longitudinal moving device 9 will reset, the transverse moving device 10 will drive the pressing device 8 on the longitudinal moving device 9 to move to the position right above the second row of the key switch board 5, and the test operation is repeated; the embodiment effectively improves the number of the key switches 6 detected each time, thereby improving the testing efficiency.

It should be understood that the above description is only illustrative of the preferred embodiments of the present utility model and the technical principles employed. It will be apparent to those skilled in the art that various modifications, equivalents, variations, and the like can be made to the present utility model. However, such modifications are intended to fall within the scope of the present utility model without departing from the spirit of the present utility model. In addition, some terms used in the specification and claims of the present application are not limiting, but are merely for convenience of description.

Claims

1. The PCB key switch detection machine is characterized by comprising a frame (1), wherein at least one detection table (2) is arranged in the frame (1), a plurality of detection probe needle boards (3) are arranged on the detection table (2), and a plurality of test probes (4) are arranged on the test probe boards (3) and used for testing a key switch board (5); a plurality of key switches (6) are arranged on the key switch board (5) in an array manner corresponding to the positions of the test probes (4); a fixing device (7) is arranged above the test probe (4), the fixing device (7) can move up and down to fix or loosen the key switch board (5), a pressing device (8) is also arranged above the fixing device (7), and the pressing device (8) is connected with a longitudinal moving device (9) for driving the pressing device (8) to move up and down to control the key switch (6) to be opened and closed; the longitudinal moving device (9) is also connected with a transverse moving device (10) which is used for driving the pressing device (8) to move back and forth so as to detect key switches (6) of different arrays.

2. The PCB key switch detection machine according to claim 1, wherein the detection table (2) comprises a base (21) and a positioning plate (22) arranged on the base (21), and a plurality of first positioning grooves (221) are formed in the bottom surface of the positioning plate (22) and are used for fixing a detection probe card (3); the top surface of the positioning plate (22) is provided with a second positioning groove (222) for fixing the key switch plate (5); a plurality of first strip through holes (223) are formed between the first positioning grooves (221) and the second positioning grooves (222) so as to expose the test probes (4), and the test probes (4) are connected with the key switches (6).

3. The PCB key switch detecting machine according to claim 1, wherein said fixing device (7) comprises driving cylinders (71) mounted on two sides of said detecting table (2), said driving cylinders (71) are connected with fixing plates (72) for fixing the key switch plate (5), said fixing plates (72) are provided with a plurality of second elongated through holes (73) for exposing the key switch (6) on said key switch plate (5).

4. The PCB key switch detection machine according to claim 2, wherein the pressing device (8) comprises a fixed block (81) arranged below the longitudinal moving device (9), and a plurality of pressing probes (82) are arranged on the fixed block (81) at intervals and used for controlling the opening and closing of the key switch (6).

5. The PCB key switch detecting machine according to claim 4, characterized in that said longitudinal moving means (9) comprises a first servo motor (91), said first servo motor (91) is connected with a first screw (92), said first screw (92) is slidingly connected with a moving plate (93), said fixed block (81) is mounted under said moving plate (93).

6. The PCB key switch detecting machine according to claim 5, wherein the lateral moving device (10) comprises a fixed seat (101), a second servo motor (102) and a second screw (103) are installed at intervals on one side of the fixed seat (101), the second servo motor (102) is connected with the second screw (103) through a transmission belt (104), a first connecting plate (105) is arranged at one end of the second screw (103) penetrating through the fixed seat (101), and the first connecting plate (105) is connected with the moving plate (93).

7. The PCB key switch detecting machine according to claim 6, wherein the end portions of the first connecting plates (105) are provided with guide rods (106), the guide rods (106) penetrate through the fixing base (101) to be connected with the second connecting plates (107), and one ends of the second screw rods (103) are fixed on the second connecting plates (107).