CN210181176U - Key pressure testing device - Google Patents

Abstract

The utility model provides a disclose button pressure test device, it includes the board, install in pressure test mechanism on the board, install in pressing mechanism on the board and install in positioning mechanism on the board, accredited testing organization is including being fixed in board upper base, vertical being fixed in linear module on the base, being fixed in fixed block on the linear module, being fixed in a plurality of pressure sensor on the fixed block, being fixed in respectively pressure sensor's pressure test piece. The pressure sensors are arranged to ensure that the provided pressure is the same, and the testing accuracy is higher.

Description

Key pressure testing device

Technical Field

The utility model relates to a testing arrangement technical field, in particular to button pressure test device.

Background

With the progress of society and the development of technology, electronic products with keys are more and more going into people's lives, such as: electronic products such as earphones, mobile phones and the like are provided with key elements, and because the quality hidden trouble of poor key hand feeling exists in the production and processing processes of the electronic products, the keys of the products need to be subjected to corresponding pressure hand feeling tests before leaving factories.

CN201821429131.1 relates to a quick test fixture of panel computer button plug, including the test host, the adjustable tool that is used for fixed panel computer PCB board of installing on the test host surface is installed and is located tool both sides face respectively and be used for touching the plug detection part and the button detection part that detect in the test host surface, the tool corresponds plug detection part and button detection part and is equipped with the locating plate that is used for fixed placing to panel computer PCB board, set up flutedly on the locating plate and correspond to plug detection part and button detection part, the scalable fixed part that is used for fixed panel computer PCB board to detect that is provided with of tool.

This quick test fixture is to great product, and its button is great, can accomplish the detection, nevertheless to the similar product of small-size FPCB, can't realize the detection.

In view of this, the utility model provides a button pressure test device to the realization is to the detection of small products.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a button pressure test device, the device simple structure realizes the detection of little product.

In order to achieve the above object, the utility model discloses a technical scheme be: a key pressure testing device comprises a machine table, a pressure testing mechanism arranged on the machine table, a pressing mechanism arranged on the machine table and a positioning mechanism arranged on the machine table, wherein the testing mechanism comprises a base fixed on the machine table, a linear module vertically fixed on the base, a fixed block fixed on the linear module, a plurality of pressure sensors fixed on the fixed block and pressure testing blocks respectively fixed on the pressure sensors.

The testing mechanism further comprises a guide rail fixed on the base, a first blocking block fixed on the guide rail, and a second blocking block fixed on the fixing block.

The pressing mechanism is located on one side of the testing mechanism and comprises a support fixed on the machine table, a pushing cylinder vertically installed on the support, a sliding rail fixed on the support, a sliding block fixedly connected with the pushing cylinder and movably installed on the sliding rail, and a pressing block fixed on the sliding block.

The positioning mechanism comprises a mounting plate fixed on the machine table, a substrate mounted on the mounting plate, a pre-pressing mechanism mounted on the substrate, and an FPC (flexible printed circuit) connecting block mounted on the substrate, wherein the substrate is provided with a positioning groove formed by downwards sinking from the upper surface of the substrate.

The mounting panel has a plurality of guide posts that extend from its surface upwards, the base plate has a plurality of guiding holes of acceping the guide post respectively, the mounting panel with install a plurality of spring thimbles between the base plate, the spring thimble distributes between mounting panel and base plate, the spring thimble upwards jacks up the base plate.

The prepressing mechanism is arranged at the rear end of the substrate and comprises a pair of fixed seats fixed on the substrate, a rotating shaft fixed between the fixed seats and a pressing block fixed on the rotating shaft, and the rotating shaft penetrates through the pressing block and is fixed on the fixed seats.

Compared with the prior art, the utility model relates to a button pressure test device's beneficial effect: the key detection is carried out on smaller products, and the pre-pressing mechanism on the positioning mechanism can ensure that the smaller products can be well butted. The pressing mechanism ensures that the terminal of the FPC to be detected can be in perfect butt joint with the terminal of the FPC connecting block. The pressure sensor, the first blocking block and the second blocking block are arranged to ensure that the provided pressure is the same, and the testing accuracy is higher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a three-dimensional assembly view of the key pressure testing device of the present invention;

fig. 2 is a perspective assembly view of a pressure testing mechanism and a pressing mechanism of the key pressure testing device shown in fig. 1;

FIG. 3 is a perspective assembly view of a pressure testing mechanism of the key pressure testing device shown in FIG. 1;

fig. 4 is an assembled view of a pressing mechanism of the key pressure testing device shown in fig. 1.

Fig. 5 is an assembled view of a three-dimensional structure of a positioning mechanism of the key pressure testing device shown in fig. 1.

Fig. 6 is an assembled view of a partially enlarged perspective structure of the positioning mechanism shown in fig. 5.

Detailed Description

The present invention will be described in detail below with reference to the drawings, but it should be emphasized that the following embodiments are merely illustrative and are not intended to limit the scope and application of the present invention.

Referring to fig. 1 to 6, the present invention relates to a key pressure testing device for testing whether the key electronic components on the FPC meet the design requirements, which includes a machine platform 1, a pressure testing mechanism 2 installed on the machine platform 1, a pressing mechanism 3 installed on the machine platform 1, and a positioning mechanism 4 installed on the machine platform 1.

The testing mechanism 2 comprises a base 21 fixed on the machine table 1, a linear module 22 vertically fixed on the base 21, a fixed block 23 fixed on the linear module 22, a plurality of pressure sensors 24 fixed on the fixed block 23, and pressure testing blocks 25 respectively fixing the pressure sensors 24.

The testing mechanism 2 further comprises a guide rail 26 fixed to the base 21, a first stopper 27 fixed to the guide rail 26, and a second stopper 28 fixed to the fixing block 23.

The linear module 22 is a conventional one, and includes a motor, a lead screw connected to the motor, and a slide block movably mounted on the lead screw. The fixed block 23 is installed on the slider, and by starting the motor of the linear module, the motor drives the slider to move up and down, so that the fixed block 23 is driven to move up and down, and the fixed block 23 drives the pressure testing block 25 to move up and down.

The pressure sensors 24 are arranged on the fixed block 23 side by side, the pressure testing block 25 is fixed below the pressure sensors 24, the pressure testing blocks 25 are vertically arranged, the arrangement position of the pressure testing blocks is determined with the position of a key to be detected, and the pressure testing blocks are aligned with the position of the key on the positioning mechanism 4.

The utility model discloses a motor start pressure test piece 25 downstream presses the button, through the debugging, confirms the position that pressure test piece 25 descends to adjust the first concrete position that stops piece 27 on guide rail 26, ensure the same height that descends at every turn, test piece 25's constant controllable of holding down pressure degree. By arranging the pressure sensor 24, when the pressure test block 25 reaches the designated position and confirms that the stress value reaches the budget, the downward power of the motor is stopped. The consistency of the stress on the keys is ensured.

The pressing mechanism 3 is located on one side of the testing mechanism 2 and used for pressing the FPC and electrically connecting with the butt joint connection detection equipment. The device comprises a support 31 fixed on a machine table 1, a pushing cylinder 32 vertically installed on the support 31, a sliding rail 33 fixed on the support, a sliding block 34 fixedly connected with the pushing cylinder 32 and movably installed on the sliding rail 33, and a pressing block 35 fixed on the sliding block 34. The slider 34 is L-shaped.

The positioning mechanism 4 includes a mounting plate 41, a substrate 42 mounted on the mounting plate 41, a pre-pressing mechanism 43 mounted on the substrate 42, and an FPC connecting block 45 mounted on the substrate 42. The FPC connecting block 45 is butted with an FPC, and is electrically connected with the detection equipment. The substrate 42 is provided with a positioning groove 420 for accommodating the FPC to be detected, and the positioning groove 420 positions the FPC.

The mounting plate 41 has a plate-like structure, and the substrate 42 is movably mounted on the upper surface of the mounting plate 41. The mounting plate 41 has a plurality of guide posts 411 extending upward from a surface thereof, the base plate 42 has a plurality of guide holes 421 receiving the guide posts 411, respectively, a plurality of pogo pins 46 are mounted between the mounting plate 41 and the base plate 42, the pogo pins 46 are distributed between the mounting plate 41 and the base plate 42, and the pogo pins 46 jack up the base plate 42. The FPC connecting block 45 is movably mounted in the positioning groove 420, in a natural state, the FPC connecting block 45 is not higher than the surface of the positioning groove 420, when the substrate 42 is pressed downwards, the spring ejector pin 46 is compressed, the substrate 42 moves downwards relative to the FPC connecting block 45, the FPC connecting block 45 moves upwards relative to the substrate 42, and the FPC connecting block 45 exposes the surface of the positioning groove 420.

The pre-pressing mechanism 43 is mounted at the rear end of the base plate 42, and includes a pair of fixing bases 431 fixed on the base plate 42, a rotating shaft 432 fixed between the fixing bases 431, and a pressing block 433 fixed on the rotating shaft 432, wherein the rotating shaft 432 passes through the pressing block 433 and is fixed on the fixing bases 431, and the pressing block 433 rotates through the rotating shaft 432. The pressing block 433 further has a protrusion 4331 protruding upward from the lower surface thereof, and the substrate 42 has a plurality of protrusions 423 extending upward from the upper surface thereof, wherein one of the protrusions 423 corresponds to the protrusion 4331, and when the pressing block 431 rotates downward, the pressing block 431 and the pressing block are clamped with each other to position the pressing plate 433.

A first pair of magnets 401 are respectively mounted on the upper surface of the base plate 42 and the front end of the pressing piece 433, and the first pair of magnets 401 attract each other when the pressing piece 433 is pressed forward. A second pair of magnets (not shown) are mounted on the rear end surfaces of the base plate 42 and the pressing block 433, respectively, and attract each other when the pressing block 93 is erected.

When the device works, a manual or mechanical arm holds the FPC positioning groove 420 to be detected, a worker moves the pressing block 433, the pressing block 433 rotates around the rotating shaft 432, one convex strip 423 is arranged in the convex block 4331, and the first pair of magnets 401 attract each other. The position of the pressing plate 433 is limited by the convex strips 423, the pressing plate 433 presses the upper surface of the FPC to be detected, and the terminal of the FPC to be detected and the terminal of the FPC connecting block 4 are prevented from falling off.

The pushing cylinder 32 is started to drive the pressing block 35 to press the surface of the pressing block 433 downwards, the pressing block 35 continues to press downwards, the substrate 42 runs downwards along the guide column 411 after receiving pressure, the substrate 42 moves downwards relative to the FPC connecting block 45, the FPC connecting block 45 runs upwards relative to the substrate 42, a terminal (not shown) of the FPC to be detected is butted with a terminal (not shown) of the FPC connecting block 45, and the FPC to be detected is connected with the detection equipment.

And then the linear module 22 of the testing mechanism 2 is started, the pressure testing block 25 provides reasonable pressure downwards to press the keys on the FPC, and the detection equipment confirms whether the keys of the FPC are qualified or not according to the pressing.

The utility model discloses carry out the button to the similar less product of FPC and detect, the butt joint that less product can be good can be guaranteed to the mechanism 43 of prepressing on its positioning mechanism 4. The pressing mechanism 3 ensures that the terminal of the FPC to be detected can be in perfect butt joint with the terminal of the FPC connecting block 45. The pressure sensor 24, the first stop block 27 and the second stop block 28 are arranged to ensure that the same pressure is provided and the test accuracy is higher.

Of course, those skilled in the art should realize that the above-mentioned embodiments are only used for illustrating the present invention, and not for limiting the present invention, and that the changes and modifications to the above-mentioned embodiments are all within the scope of the appended claims as long as they are within the true spirit of the present invention.

Claims (6)

1. A key pressure testing device is characterized in that: the testing mechanism comprises a base fixed on the machine table, a linear module vertically fixed on the base, a fixed block fixed on the linear module, a plurality of pressure sensors fixed on the fixed block, and pressure testing blocks respectively fixed on the pressure sensors.

2. The key press testing device of claim 1, wherein: the testing mechanism further comprises a guide rail fixed on the base, a first blocking block fixed on the guide rail, and a second blocking block fixed on the fixing block.

3. The key press testing device of claim 1, wherein: the pressing mechanism is located on one side of the testing mechanism and comprises a support fixed on the machine table, a pushing cylinder vertically installed on the support, a sliding rail fixed on the support, a sliding block fixedly connected with the pushing cylinder and movably installed on the sliding rail, and a pressing block fixed on the sliding block.

4. The key press testing device of claim 1, wherein: the positioning mechanism comprises a mounting plate fixed on the machine table, a substrate mounted on the mounting plate, a pre-pressing mechanism mounted on the substrate, and an FPC (flexible printed circuit) connecting block mounted on the substrate, wherein the substrate is provided with a positioning groove formed by downwards sinking from the upper surface of the substrate.

5. The key press testing device of claim 4, wherein: the mounting panel has a plurality of guide posts that extend from its surface upwards, the base plate has a plurality of guiding holes of acceping the guide post respectively, the mounting panel with install a plurality of spring thimbles between the base plate, the spring thimble distributes between mounting panel and base plate, the spring thimble upwards jacks up the base plate.

6. The key press testing device of claim 5, wherein: the prepressing mechanism is arranged at the rear end of the substrate and comprises a pair of fixed seats fixed on the substrate, a rotating shaft fixed between the fixed seats and a pressing block fixed on the rotating shaft, and the rotating shaft penetrates through the pressing block and is fixed on the fixed seats.

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