CN216050631U

CN216050631U - Key durability tester

Info

Publication number: CN216050631U
Application number: CN202121348103.9U
Authority: CN
Inventors: 吉静
Original assignee: Beer Haila Temperature Control System Shanghai Co ltd
Current assignee: Beer Haila Temperature Control System Shanghai Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-03-15
Anticipated expiration: 2031-06-17

Abstract

The utility model discloses a key durability tester, which comprises a machine table with a display screen, wherein the top surface of the machine table is defined to form an operation plane, at least one pneumatic finger and a force sensor are fixed on the operation plane, the pneumatic finger is provided with an air inlet end and a telescopic striking end, the striking end is aligned to the force sensor, and the force sensor and the display screen are mutually linked through signal transmission; when an air source enters the pneumatic finger, the beating end is pushed outwards and beats the force sensor, and the force sensor feeds a received force signal back to the display screen. By adopting the key endurance tester provided by the utility model, the conditions that the endurance program cannot be triggered due to small key force and the key is damaged due to large key force in the key endurance testing process can be eliminated, and the problem of inaccurate endurance testing caused by the factors can be avoided.

Description

Key durability tester

Technical Field

The utility model relates to the technical field of high-performance intelligent instruments and meters, in particular to a key durability tester.

Background

The key durability automatic test is realized in order to simulate whether mechanical and electrical functions of an air conditioner panel and the like in the whole life cycle of a product are always intact, the force of pressing the surface of a sample piece needs to be monitored at any time in the durability process, and interference factors such as failure of an experiment and the like caused by defects of the sample piece are eliminated.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the prior art, the utility model provides the key endurance tester which can discharge the conditions that the endurance program cannot be triggered due to small key force and the key is damaged due to large key force in the key endurance testing process, and avoid the problem of inaccurate endurance testing caused by the factors.

In order to achieve the purpose, the utility model provides a key durability tester, which comprises a machine table with a display screen, wherein the top surface of the machine table defines an operation plane, at least one pneumatic finger and a force sensor are fixed on the operation plane, the pneumatic finger is provided with an air inlet end and a telescopic striking end, the striking end is aligned to the force sensor, and the force sensor and the display screen are mutually linked through signal transmission; when an air source enters the pneumatic finger, the beating end is pushed outwards and beats the force sensor, and the force sensor feeds a received force signal back to the display screen.

As a preferred embodiment of the key durability tester of the present invention, the pneumatic finger is fixed on the operation plane through an L-shaped bracket, a first side of the L-shaped bracket is fixed on the operation plane, and a second side of the L-shaped bracket is provided with a fixing hole for the pneumatic finger to penetrate through.

As a preferred embodiment of the key durability tester of the present invention, the first side of the L-shaped bracket is fixed on the operation plane by a bolt through a strip-shaped hole, and the length direction of the strip-shaped hole is parallel to the axial direction of the pneumatic finger.

As a preferred embodiment of the key durability tester of the present invention, the force sensor is fixed on the operation plane through an L-shaped bracket, a first side of the L-shaped bracket is fixed on the operation plane, and the force sensor is fixed on an outer surface of a second side of the L-shaped bracket.

As a preferred embodiment of the key durability tester of the present invention, an air source pipeline is disposed inside the machine platform, an air inlet and an air outlet of the air source pipeline are disposed on the surface of the machine platform, and the air outlet is connected to the air inlet end of the pneumatic finger through an air pipe.

Due to the adoption of the technical scheme, the utility model has the following technical effects:

after the air source enters from the air inlet end of the pneumatic finger, the beating end can be controlled to be pushed outwards and beat on the force sensor, and the force sensor transmits the stressed force to the display screen of the machine table in a signal form, so that the real-time detection of the size of the air source is realized; when the tester is used for a key test fixture, pneumatic fingers and pneumatic fingers used for striking keys in the fixture are in a test program queue, the fingers are completely and synchronously started to strike the keys to be tested, the force sensors are used for replacing the keys on the fixture, the stress condition when the keys are struck on the fixture can be simulated, the real-time monitoring of the stress of the keys on the fixture is realized, the case force is transmitted to a display screen in real time through signals by the force sensors, the endurance test process of the keys can be carried out, the endurance program cannot be triggered due to small key force, and the condition that the keys are damaged due to large key force is eliminated, so that the problem of inaccurate endurance test caused by the factors is solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a front view of a key durability tester according to an embodiment of the present invention.

Fig. 2 is a rear view of the key durability tester according to the embodiment of the present invention.

Fig. 3 is a side view of a key durability tester according to an embodiment of the present invention.

Fig. 4 is a top view of the key durability tester according to the embodiment of the utility model.

Fig. 5 is an isometric view of a key durability tester in accordance with an embodiment of the present invention.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

The embodiments of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 5, an embodiment of the present invention provides a key durability tester, including a machine base 11 with a display screen 12, an operation plane is defined and formed on a top surface of the machine base 11, a pneumatic finger 13 and a force sensor 14 are fixed on the operation plane in a shape of a straight line, the pneumatic finger 13 is an executing device in the prior art, and the executing device uses compressed air as power to hit a workpiece. The pneumatic finger is often used on a key durability test fixture to hit the key to test the hit capability, i.e. durability, of the key.

The pneumatic finger 13 of the present invention has an air intake end and a retractable striking end aligned with the force sensor 14, the force sensor 14 being linked to the display 12 by signal transmission. When air enters the pneumatic finger 13 from the air inlet end, the hitting end of the pneumatic finger can be driven to be pushed outwards and hit the force sensor 14, the force sensor 14 feeds a received force signal back to the display screen 12, the display screen 12 can display the current force on the force sensor 14 in real time, and if necessary, the highest historical value can be displayed, namely, the display screen 13 can record and display the current force and the highest historical value (the maximum received force value of the force sensor) of the force sensor through an internal program or a special circuit connection mode, the implementation mode is the prior art, and the method is not as cumbersome.

The key durability tester provided by the utility model is used together with a key durability test fixture in practice, the key durability test fixture comprises a plurality of starting fingers, the starting fingers strike a plurality of keys according to a programmed running program, an air source is introduced into the air inlet end of each starting finger from a terminal, and the size of the air source in each cycle is the same. The key durability tester is also provided with a pneumatic finger, the force sensor is used for simulating a pressed key, the pneumatic finger on the tester and the pneumatic finger on the key durability test jig are in a test program queue, and the pneumatic finger is completely and synchronously simulated to be pressed on the key to be tested.

Further, the pneumatic finger 13 can be fixed on the operation plane through an L-shaped bracket, a first side of the L-shaped bracket is fixed on the operation plane, and a second side of the L-shaped bracket is provided with a fixing hole for the pneumatic finger 13 to penetrate. Preferably, the first side of the L-shaped bracket is fixed on the operation plane through a strip-shaped hole in a bolt-through manner, and the length direction of the strip-shaped hole is parallel to the axial direction of the pneumatic finger 13, so that the distance between the pneumatic finger and the force sensor can be finely adjusted, and the requirement that the hitting end of the pneumatic finger can hit the force sensor 14 when pushed out is met. Equally, pneumatic finger 13 can also be fixed through the bar hole cooperation nut of a vertical setting in the second side of this L type support, it establishes two nuts to be close to one side cover of hitting the end at pneumatic finger, two nuts are located the both sides in the bar hole of the second side of L type support respectively, after the high position of pneumatic finger 13 has been adjusted, screw up two nuts of both sides, fix pneumatic finger 13, thereby realize the fine setting of pneumatic finger 13's height, guarantee that pneumatic finger's hitting the end and can aim at force sensor 14's induction end.

The force sensor 14 is fixed on the operation plane by means of another L-shaped bracket, a first side of which is fixed on the operation plane and the force sensor 14 is fixed on the outer surface of a second side of which. The bottom of the force sensor 14 is fixed on the operation plane, and the sensing end of the force sensor is aligned with the direction of the pneumatic finger.

Preferably, the air source pipeline 15 is disposed inside the machine platform 11, the air inlet 151 and the air outlet 152 of the air source pipeline 15 are disposed on the surface of the machine platform 11, and the air outlet 152 is disposed at one corner of the operation plane and connected to the air inlet end of the pneumatic finger 13 through an air pipe. The air inlet 151 is disposed on the back of the machine platform and connected to a terminal for providing an air source, and the terminal may be an air compressor or an air pump.

In the key durability tester, after an air source enters from the air inlet end of the pneumatic finger 13, the beating end can be controlled to be pushed out outwards and beat on the force sensor 14, and the force sensor 14 transmits the stressed force to the display screen 12 on the front side of the machine table 11 in a signal form, so that the real-time detection of the size of the air source is realized; when the tester is used for the key endurance test fixture, pneumatic fingers and pneumatic fingers used for striking keys in the fixture are all in a test program queue, the fingers are completely and synchronously started to strike the keys to be tested, the force sensors are used for replacing the keys on the fixture, the stress condition when the keys are struck on the fixture can be simulated, the real-time monitoring of the stress of the keys on the fixture is realized, the magnitude of the case force is transmitted to a display screen in real time through signals by the force sensors, the endurance test process of the keys can be realized, the endurance program cannot be triggered due to small key force and the keys are damaged due to large key force, and the problem of inaccurate endurance test caused by the factors is avoided.

It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the technical content of the present disclosure without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a button durability tester which characterized in that: the device comprises a machine table with a display screen, wherein an operation plane is defined on the top surface of the machine table, at least one pneumatic finger and a force sensor are fixed on the operation plane, the pneumatic finger is provided with an air inlet end and a telescopic striking end, the striking end is aligned to the force sensor, and the force sensor and the display screen are mutually linked through signal transmission; when an air source enters the pneumatic finger, the beating end is pushed outwards and beats the force sensor, and the force sensor feeds a received force signal back to the display screen.

2. The key durability tester as claimed in claim 1, wherein: the pneumatic finger is fixed on the operation plane through an L-shaped support, the first side of the L-shaped support is fixed on the operation plane, and the second side of the L-shaped support is provided with a fixing hole for the pneumatic finger to penetrate through.

3. The key durability tester as claimed in claim 2, wherein: the first side of the L-shaped support is fixed on the operation plane in a bolt penetrating mode through a strip-shaped hole, and the length direction of the strip-shaped hole is parallel to the axial direction of the pneumatic finger.

4. The key durability tester as claimed in claim 1, wherein: the force sensor is fixed on the operation plane through an L-shaped support, the first side of the L-shaped support is fixed on the operation plane, and the force sensor is fixed on the outer surface of the second side of the L-shaped support.

5. The key durability tester as claimed in claim 1, wherein: the pneumatic finger device is characterized in that an air source pipeline is arranged inside the machine table, an air inlet and an air outlet of the air source pipeline are arranged on the surface of the machine table, and the air outlet is connected to the air inlet end of the pneumatic finger through an air pipe.