CN212514904U

CN212514904U - Automatic testing system for capacitive touch switch

Info

Publication number: CN212514904U
Application number: CN201922115221.4U
Authority: CN
Inventors: 冯炜炜; 周庆丰; 王礼友; 吕明; 高利军; 华徐立
Original assignee: Ningbo Hualian Electronic Science & Technology Co ltd
Current assignee: Ningbo Hualian Electronic Science & Technology Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2021-02-09
Anticipated expiration: 2029-11-29

Abstract

The utility model relates to an automatic testing system of a capacitive touch switch, which comprises a base for placing a product to be tested and an upper computer; the method is characterized in that: the device also comprises a simulated finger component positioned above the base and a driving device for driving the simulated finger component to move up and down; the driving device drives the analog finger component to move downwards to be in contact with the product to be detected so as to change the capacitance value of the product to be detected; the base is internally provided with a processing module, one end of the processing module is electrically connected with a product to be detected in a matched mode to receive capacitance value change signals, and the other end of the processing module is connected with an upper computer to transmit the capacitance value change signals to the upper computer. The automatic test system has high detection efficiency and good reliability.

Description

Automatic testing system for capacitive touch switch

Technical Field

The utility model relates to a capacitance touch switch produces technical field, especially relates to an automatic test system of capacitance touch switch.

Background

After the capacitive touch switch is produced, the capacitive touch switch needs to be detected to ensure that the product is qualified. In the prior art, the capacitive touch switch is mostly detected in the following mode, namely, a product to be detected is inserted into a single capacitive touch tester, then a detection person touches the touch position of the product to be detected with a finger, and product detection information is acquired through a display screen of the single capacitive touch tester.

However, when the method is used for detection, only one product can be detected at a time, the detection efficiency is very low, and the method is difficult to adapt to detection in large-scale production.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide an automatic testing system for capacitive touch switch with high detection efficiency and high detection reliability.

In order to realize the purpose, the technical scheme of the utility model is that: an automatic testing system of a capacitive touch switch comprises a base and an upper computer, wherein the base is used for placing a product to be tested;

the method is characterized in that:

the device also comprises a simulated finger component positioned above the base and a driving device for driving the simulated finger component to move up and down;

the driving device drives the analog finger component to move downwards to be in contact with the product to be detected so as to change the capacitance value of the product to be detected;

the base is internally provided with a processing module, one end of the processing module is electrically connected with a product to be detected in a matched mode to receive capacitance value change signals, and the other end of the processing module is connected with an upper computer to transmit the capacitance value change signals to the upper computer.

Furthermore, the simulated finger assembly comprises an installation jig provided with a plurality of simulated finger keys and a movable plate used for fixing the installation jig, and the movable plate is connected with the driving device and can be driven by the driving device to move up and down.

Furthermore, a fixing frame is arranged on the base, the driving device comprises an air cylinder arranged on the fixing frame, the air cylinder comprises a piston rod extending out of the lower end of the cylinder body, and the lower end of the piston rod is connected with the movable plate.

Further, the lower end of the piston rod is fixed with a connecting plate, the connecting plate is provided with a first connecting hole, the connecting plate is connected with the movable plate through a first screw rod which penetrates through the first connecting hole and can move up and down relative to the connecting plate, the lower end of the first screw rod is fixed with the movable plate in a threaded mode, a first spring is sleeved on the periphery of the portion, located between the movable plate and the connecting plate, of the first screw rod, and two ends of the first spring are abutted against the movable plate and the connecting plate respectively.

Furthermore, a connecting device for connecting a connector on the product to be detected with the processing module is arranged on the base;

connecting device include with wait to examine the first connector of the socket type connector adaptation of examining the product and with wait to examine the second connector of the PIN PIN type connector complex of examining the product.

Further, the second connector is including arranging the seat and setting up the row needle of terminal surface under arranging the seat, it is equipped with the second connecting hole to arrange the seat both ends, it links to each other through passing the second connecting hole and the second screw rod that can arrange the seat and reciprocate relatively with the base to arrange the seat, second screw rod lower extreme and base thread tightening, and the second screw rod is located to arrange the partial periphery between seat and the base and is equipped with the second spring, the second spring both ends offset with arranging seat and base respectively.

Further, first screw rod has four and sets up the four corners at the connecting plate respectively, the fly leaf is equipped with the opening in the region that four first screw rod enclose closed, the second connector sets up in the opening below, the connecting plate downside is equipped with and can pushes down so that arrange the needle with wait to examine the pressure seat that PIN needle formula connector contact of examining the product is arranged to the seat.

Furthermore, a positioning column is vertically arranged on the base, a positioning hole through which the positioning column can penetrate is formed in the movable plate, and the movable plate can move up and down relative to the positioning column.

Further, be equipped with on the base and be located the simulation and point the button below in order to place the product mould of waiting to examine the product, be equipped with the locating piece that is located PIN PIN type connector both sides respectively on the base, the second screw rod corresponds the setting on the locating piece, be provided with on the locating piece along waiting to examine the bar that product length direction set up and lead to the groove, the locating piece links to each other with the base through the adjusting screw who sets up in the groove is led to the bar.

Furthermore, the base is also provided with an indicator light which is connected with the processing module and indicates whether the product is qualified according to the information transmitted by the processing module, and an operation button which is connected with the processing module and sends a trigger signal to the processing module.

Compared with the prior art, the utility model has the advantages of:

the automatic test system has the advantages that the plurality of simulated finger keys are arranged to replace the contact of fingers of a person and a product to be tested, so that the detection efficiency can be greatly improved, and the detection cost is saved; the system can enable each simulated finger key to be effectively contacted with the product to be detected, so that missing detection is avoided, the detection reliability is improved, and the quality of the product leaving factory is ensured; by arranging the first connector and the second connector, the system can be suitable for products to be detected in different styles, and is wide in application range and high in applicability; through setting up first spring, can cushion when simulating finger button touch product to improve the even degree of a plurality of simulation finger button contact products, and also prevented that simulation finger button from causing the damage to waiting to examine the product, further ensured the product percent of pass.

Drawings

Fig. 1 is a schematic structural diagram of an automatic test system according to the present application.

Fig. 2 is an exploded view of a part of the structure of the automatic test system of the present application.

Fig. 3 is an enlarged schematic view of a point a in fig. 2.

Fig. 4 is a schematic diagram of the automatic test system according to the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 3 be the utility model discloses preferred embodiment's structural schematic diagram, this electric capacity touch switch automatic test system is including being used for placing the base 10 of waiting to examine the product, be located the simulation finger subassembly of base 10 top, drive simulates drive arrangement and host computer 20 that the finger subassembly reciprocated, the drive arrangement drive simulates the finger subassembly and moves down and wait to examine the product contact, base 10 is inside to be provided with processing module (not shown in the figure), processing module's one end is connected in order to receive capacitance value change signal with waiting to examine product cooperation electricity, the other end links to each other in order to transmit capacitance value change signal for the host computer with host computer 20. When the simulated finger assembly moves downwards to contact with the product to be detected, the capacitance value of the product to be detected can be changed, and the capacitance change signal is processed by the processing module and then transmitted to the upper computer 20 for comparative analysis so as to judge whether the product to be detected is qualified.

Specifically, the simulated finger assembly includes a mounting jig 32 provided with a plurality of simulated finger keys 31 and a movable plate 33 for fixing the mounting jig 32, in this embodiment, the mounting jig 32 and the movable plate 33 are fixed by screws 34, so that when different products are detected, different mounting jigs 32 can be conveniently replaced, the movable plate 33 is connected with a driving device and can be driven by the driving device to move up and down, thereby enabling the simulated finger keys 31 to move up and down along with the movable plate 33; the base 10 is provided with a fixed frame 11, the driving device comprises an air cylinder arranged on the fixed frame 11, the air cylinder comprises a cylinder body 41 and a piston rod 42 extending out of the lower end of the cylinder body 41, and the lower end of the piston rod 42 is connected with the movable plate 33.

Preferably, a connecting plate 43 is fixed at the lower end of the piston rod 42, a first connecting hole 44 is formed in the connecting plate 43, the connecting plate 43 is connected with the movable plate 33 through a first screw 45 penetrating through the first connecting hole 44, the first screw 45 can move up and down relative to the connecting plate 43, a nut at the upper end of the first screw 45 abuts against the upper end face of the connecting plate 43, the lower end of the first screw 45 is fixedly connected with the movable plate 33 in a threaded manner, a first spring 46 is sleeved on the part of the outer periphery of the first screw 45 between the movable plate 33 and the connecting plate 43, and two ends of the first spring 46 respectively abut against the movable plate 33 and the connecting plate 43. By adopting the design, when the cylinder drives the simulation finger key 31 to move downwards and contact with a product to be detected, the first spring 46 can play a buffering role, the uniformity of the contact between the plurality of simulation finger keys 31 and the product to be detected is improved, and the damage to the product to be detected caused by the simulation finger key 31 is avoided.

In this embodiment, be equipped with the connecting device that is used for waiting to examine the connector of examining the product and links to each other with processing module on the base 10, connecting device include with wait to examine the first connector 12 of the socket type connector looks adaptation of product and with wait to examine the second connector that the PIN PIN type connector cooperation of product is connected, make this system can detect the product that has socket type connector and the product of PIN PIN type connector like this, improved the suitability of this system.

It is envisioned that the first connector 12 may be a socket structure adapted to the socket connector of the product to be inspected; when the product to be detected is a PIN connector, the product cannot be plugged, and a second connector convenient to connect with the PIN connector needs to be designed, in this embodiment, the second connector includes a row seat 132 and a row PIN 131 arranged at the lower end of the row seat 132, second connection holes 133 are arranged at two ends of the row seat 132, the row seat 132 is connected with the base 10 through a second screw 134 which passes through the second connection holes 133 and can move up and down relative to the row seat 132, a nut at the upper end of the second screw 134 abuts against the upper end face of the row seat 132, the lower end of the second screw 134 is fixed with the base 10 in a threaded connection manner, a second spring 135 is sleeved on a part of the periphery of the second screw 134 between the row seat 132 and the base 10, and two ends of the second spring 135 respectively abut against the row seat 132 and the base 10. Adopt this kind of design, the PIN PIN connector that will wait to examine the product is placed in row needle 131 below, when needs link to each other, press down row seat 132 make row needle 131 with PIN PIN connector contact can, and when needs disconnection, loosen and give row seat 132 application of force, row seat 132 upwards removes under the elastic restoring force effect of second spring 135, make row needle 131 break away from the contact with the PIN PIN connector that waits to examine the product, moreover, the steam generator is simple in structure, and convenient operation.

Preferably, the number of the first screws 45 is four, the first screws are respectively arranged at four corners of the connecting plate 43, the movable plate 33 is provided with an opening 331 in an area enclosed by the four first screws 45, the second connector is arranged below the opening 331, and a pressing seat 47 capable of pressing down the PIN bank 132 to make the PIN bank 131 contact with the PIN connector of the product to be tested is arranged at the lower side of the connecting plate 43.

In this embodiment, the base 10 is vertically provided with the positioning columns 14, the movable plate 33 is provided with positioning holes 332 corresponding to the positioning columns 14, the positioning columns 14 pass through the positioning holes 332, and the movable plate 33 can move up and down relative to the positioning columns 14, and preferably, the number of the positioning columns 14 is four and corresponds to four corners of the movable plate 33. Through the guiding and positioning effect of the positioning column 14, the phenomenon that the air cylinder 41 pushes the simulated finger keys 31 to shake in the downward moving process is avoided, so that each simulated finger key 31 is uniformly contacted with a product to be detected, and the detection reliability is improved.

In this embodiment, a product mold 15 for placing a product to be inspected, which is located below the simulated finger key 31, is arranged on the base 10, positioning blocks 16 are arranged on two sides of the PIN connector of the product to be inspected by the base 10, the two second screws 134 are respectively arranged on the corresponding positioning blocks 16, a strip-shaped through groove 161 is arranged on the positioning block 16 and is arranged along the length direction of the product to be inspected, and the positioning block 16 is connected with the base 10 through an adjusting screw 162 arranged in the strip-shaped through groove 161. By arranging the product die 15, the product to be detected can be positioned in place quickly, the time for continuously adjusting the position of the product is saved, and the detection efficiency is improved; through setting up locating piece 16 that can move, when needs adjust row needle 131 position, unscrew adjusting screw 162, because adjusting screw 162 can slide in bar logical groove 161, then can move locating piece 16 and adjust the position, make row needle 131 and accurate alignment of PIN needle type connector, then tighten adjusting screw 162 to improve the reliability that detects.

In this embodiment, the base 10 is further provided with an indicator light 17 connected to the processing module and indicating whether the product is qualified according to the information transmitted by the processing module, and an operation button 18 connected to the processing module and sending a trigger signal to the processing module, so that whether the product is qualified can be intuitively known by setting the indicator light 17, and the operation is simple and clear.

The working principle of the automatic test system is as follows:

firstly, the upper computer 20 calls a program to debug the system, then a product to be detected is placed in a product die 15, a corresponding installation jig 32 is installed, if the product is a socket type connector product, the socket type connector of the product to be detected is connected with the first connector 12, and if the product is a PIN needle type connector product, the PIN needle type connector is placed between two positioning blocks 16, and the positioning blocks 16 are adjusted to align the PIN header 131 with the PIN needle type connector; as shown in fig. 4, the operation button 18 is pressed, the processing module obtains a trigger signal to control the cylinder to move, the cylinder drives the analog finger key 31 to contact with the product to be detected, the processing module obtains a capacitance signal of the product to be detected and converts the processed capacitance signal, i.e. an analog signal into a digital signal to be transmitted to the upper computer 20, the upper computer 20 compares the received data with standard product data and feeds back information to the processing module, the processing module determines whether the product to be detected is qualified according to the feedback information and displays whether the indicator lamp 17 is qualified or not by transmitting a command, meanwhile, the upper computer also displays whether the product is qualified or not according to the parameter content specifically contained in the test software adopted by the upper computer and can simultaneously display the specific abnormal key value of the capacitive touch switch, as is known to those skilled in the art, and will not be described in detail herein.

While embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An automatic testing system of a capacitive touch switch comprises a base (10) for placing a product to be tested and an upper computer (20);

the method is characterized in that:

the device also comprises a simulated finger component positioned above the base (10) and a driving device for driving the simulated finger component to move up and down;

the base (10) is internally provided with a processing module, one end of the processing module is electrically connected with a product to be detected in a matched mode to receive a capacitance value change signal, and the other end of the processing module is connected with the upper computer (20) to transmit the capacitance value change signal to the upper computer (20).

2. The capacitive touch switch automatic test system of claim 1, wherein:

the simulated finger assembly comprises an installation jig (32) provided with a plurality of simulated finger keys (31) and a movable plate (33) used for fixedly installing the jig (32), and the movable plate (33) is connected with the driving device and can be driven by the driving device to move up and down.

3. The capacitive touch switch automatic test system of claim 2, wherein:

the base (10) is provided with a fixing frame (11), the driving device comprises an air cylinder arranged on the fixing frame (11), the air cylinder comprises a cylinder body (41) and a piston rod (42) extending out of the lower end of the cylinder body (41), and the lower end of the piston rod (42) is connected with the movable plate (33).

4. The capacitive touch switch automatic test system of claim 3, wherein:

the piston rod (42) lower extreme is fixed with connecting plate (43), be equipped with first connecting hole (44) on connecting plate (43), connecting plate (43) and fly leaf (33) link to each other through passing first connecting hole (44) and first screw rod (45) that can reciprocate relatively connecting plate (43), first screw rod (45) lower extreme and fly leaf (33) thread tightening, and first screw rod (45) are located and are equipped with first spring (46) on the part periphery between fly leaf (33) and connecting plate (43), first spring (46) both ends offset with fly leaf (33) and connecting plate (43) respectively.

5. The capacitive touch switch automatic test system of claim 4, wherein:

the base (10) is provided with a connecting device for connecting a connector on a product to be detected with the processing module;

the connecting device comprises a first connector (12) matched with a socket type connector of a product to be detected and a second connector matched with a PIN needle type connector of the product to be detected.

6. The capacitive touch switch automatic test system of claim 5, wherein:

the second connector is including arranging seat (132) and setting row needle (131) of terminal surface under row seat (132), it is equipped with second connecting hole (133) to arrange seat (132) both ends, arrange seat (132) and base (10) and link to each other through passing second connecting hole (133) and second screw rod (134) that can arrange seat (132) relatively and reciprocate, second screw rod (134) lower extreme and base (10) thread tightening, and second screw rod (134) are located to arrange and are equipped with second spring (135) on the part periphery between seat (132) and base (10), second spring (135) both ends offset with row seat (132) and base (10) respectively.

7. The capacitive touch switch automatic test system of claim 6, wherein:

first screw rod (45) have four and set up the four corners at connecting plate (43) respectively, fly leaf (33) are equipped with opening (331) in the region that four first screw rods (45) enclose, the second connector sets up in opening (331) below, connecting plate (43) downside is equipped with and can pushes down so that arrange needle (131) and the pressure seat (47) of examining the PIN needle type connector contact of examining the product to row seat (132).

8. The capacitive touch switch automatic test system of claim 2, wherein:

the positioning device is characterized in that a positioning column (14) is vertically arranged on the base (10), a positioning hole (332) through which the positioning column (14) can penetrate is formed in the movable plate (33), and the movable plate (33) can move up and down relative to the positioning column (14).

9. The capacitive touch switch automatic test system of claim 6, wherein:

be equipped with on base (10) and be located simulation finger button (31) below in order to place product mould (15) of waiting to examine the product, be equipped with locating piece (16) that are located PIN needle connector both sides respectively on base (10), second screw rod (134) correspond and set up on locating piece (16), be provided with on locating piece (16) and lead to groove (161) along the bar of waiting to examine the setting of product length direction, locating piece (16) link to each other with base (10) through adjusting screw (162) that set up in the groove (161) is led to the bar.

10. The capacitive touch switch automatic test system of claim 3, wherein:

the base (10) is also provided with an indicator light (17) which is connected with the processing module and indicates whether the product is qualified according to the information transmitted by the processing module, and an operation button (18) which is connected with the processing module and sends a trigger signal to the processing module.