CN118275808A - Electrostatic discharge testing device - Google Patents

Abstract

The invention belongs to the technical field of electrostatic discharge testing, and particularly discloses an electrostatic discharge testing device. The electrostatic discharge testing device comprises a testing table, a protection plate, a mechanical arm, a clamping assembly and an electrostatic generator, wherein the protection plate is arranged on the testing table; the mechanical arm is arranged on the test bench and is positioned on one side of the protection plate; the clamping assembly is connected with the mechanical arm, and the mechanical arm is used for driving the clamping assembly to move; the static generator is arranged on the clamping assembly. According to the invention, the mechanical arm can control the static generator to move, so that the tested sample is tested through the static generator, the static generator does not need to be manually operated, the labor intensity is reduced, and the working efficiency is improved. In addition, the operators are isolated from the electrostatic generator and the tested sample through the protection plates, so that the operation safety of the operators is improved.

Description

Electrostatic discharge testing device

Technical Field

The invention belongs to the technical field of electrostatic discharge testing, and particularly relates to an electrostatic discharge testing device.

Background

Electrostatic discharge testing is a procedure used to evaluate the ability of an electronic device to withstand and dissipate electrostatic discharge. Such testing typically involves high voltage discharging the device by contact or air discharge and measuring the resulting current and voltage. The device is then evaluated according to whether the device continues to function properly after discharge. Electrostatic discharge testing is important in the product development of electronic devices, particularly those sensitive to electrostatic discharge, to ensure that they are able to withstand the various electrostatic events that may be encountered and meet safety and performance requirements.

In the related art, the electrostatic discharge test is performed by an operator holding an electrostatic generator to perform a discharge test on the tested equipment, and the test method can bring potential safety hazards to the operator when the tested equipment and the explosive equipment are tested, and has high labor intensity and lower efficiency when the tested equipment and the explosive equipment are tested on a single large sample or batch of products.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides electrostatic discharge testing equipment which can reduce labor intensity and improve efficiency and safety.

The electrostatic discharge testing device of the embodiment of the invention comprises: a test bench; the protection plate is arranged on the test bench; the mechanical arm is arranged on the test bench and is positioned on one side of the protection plate; the clamping assembly is connected with the mechanical arm, and the mechanical arm is used for driving the clamping assembly to move; the static generator is arranged on the clamping assembly.

It can be understood that the electrostatic generator is connected to the mechanical arm through the clamping assembly, so that the electrostatic generator can be controlled to move through the mechanical arm, a tested sample is tested through the electrostatic generator, the electrostatic generator does not need to be manually operated, the labor intensity is reduced, and the working efficiency is improved. In addition, the operators are isolated from the electrostatic generator and the tested sample through the protection plates, so that the operation safety of the operators is improved.

In this embodiment, the electrostatic discharge testing device further includes a vision camera, and the vision camera is disposed on the clamping component.

In this embodiment, the electrostatic discharge testing device further includes a protective cover, and the protective cover is disposed outside the vision camera.

In this embodiment, the clamping assembly includes: the supporting seat is arranged on the mechanical arm; the clamping component is arranged on the supporting seat and can move relative to the supporting seat; and the elastic piece is provided with a first end and a second end in the moving direction of the clamping component, the first end of the elastic piece is connected with the supporting seat, and the second end of the elastic piece is connected with the clamping component.

In this embodiment, the electrostatic discharge testing device further includes a pressure sensor, where the pressure sensor is disposed on the supporting seat, and the first end of the elastic element is connected to the pressure sensor.

In this embodiment, the support base includes: the supporting plate is connected with the mechanical arm; the two side plates are arranged at two sides of the supporting plate at intervals; guide rail and slider, two parallel interval is provided with two guide rails between the curb plate, every all be provided with on the guide rail the slider, clamping part set up in the slider, pressure sensor is located the backup pad with between the clamping part.

In this embodiment, the electrostatic discharge testing device further includes a laser ranging sensor, where the laser ranging sensor is disposed on the clamping component.

In this embodiment, two laser ranging sensors are provided, and two laser ranging sensors are disposed in parallel at intervals in the clamping assembly.

In this embodiment, the electrostatic discharge testing device further includes a demonstrator, where the demonstrator is disposed on a side of the protection plate away from the mechanical arm, and the demonstrator is connected to the mechanical arm.

In this embodiment, the esd test apparatus further includes a plurality of rollers, and the plurality of rollers are disposed at intervals at the bottom of the test stand.

Drawings

FIG. 1 is a schematic diagram of a sample under test and an ESD test device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an esd test device according to an embodiment of the invention.

FIG. 3 is a schematic diagram of a portion of an ESD test apparatus according to an embodiment of the invention.

FIG. 4 is a schematic diagram of a portion of an ESD test apparatus according to an embodiment of the invention.

Reference numerals:

100. A sample to be tested;

1. A test bench; 2. a protection plate; 3. a mechanical arm; 4. a clamping assembly; 41. a support base; 411. a support plate; 412. a side plate; 413. a guide rail; 414. a slide block; 42. a clamping member; 43. an elastic member; 5. an electrostatic generator; 6. a vision camera; 7. a protective cover; 8. a pressure sensor; 9. a laser ranging sensor; 10. a demonstrator; 11. a roller; 12. a handle.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In this embodiment, as shown in fig. 1 and 2, the electrostatic discharge testing device includes a testing table 1, a protection plate 2, a mechanical arm 3, a clamping assembly 4 and an electrostatic generator 5, wherein the protection plate 2 is disposed on the testing table 1. The mechanical arm 3 is arranged on the test bench 1, and the mechanical arm 3 is positioned on one side of the protection plate 2. The clamping assembly 4 is connected with the mechanical arm 3, and the mechanical arm 3 is used for driving the clamping assembly 4 to move. The electrostatic generator 5 is disposed on the clamping assembly 4.

For example, the protection plate 2 may be a transparent acrylic plate or a transparent glass plate, so that an operator can observe the test condition of the electrostatic generator 5 through the protection plate 2.

Specifically, the gun head of the electrostatic generator 5 is disposed on the clamping assembly 4, the clamping assembly 4 can be fixed at the execution end of the mechanical arm 3 through a connecting piece such as a bolt, and the gun head of the electrostatic generator 5 is driven to move through the mechanical arm 3. The mechanical arm 3 may be a six-axis mechanical arm 3, and the movement is flexible, and the six-axis mechanical arm 3 can be controlled to move by a controller, and the specific control mode of the mechanical arm 3 is conventional prior art, which is not described herein.

It can be appreciated that the electrostatic generator 5 is connected to the mechanical arm 3 through the clamping component 4, so that the electrostatic generator 5 can be controlled to move through the mechanical arm 3, a sample to be tested is tested through the electrostatic generator 5, the electrostatic generator 5 does not need to be manually operated, the labor intensity is reduced, and the improvement of the working efficiency is facilitated. In addition, the operators are isolated from the electrostatic generator 5 and the tested sample through the protection plate 2, so that the safety of the operators is improved.

In this embodiment, as shown in fig. 3 and 4, the electrostatic discharge testing device further includes a vision camera 6, and the vision camera 6 is disposed on the clamping assembly 4.

Specifically, the vision camera 6 is a binocular vision camera that captures images of the sample 100 to be measured from different angles using two cameras, and perceives the three-dimensional spatial position of the sample 100 to be measured by calculating the parallax between these images. The working principle of the binocular vision camera is conventional prior art and will not be described in detail here.

The visual camera 6 is used for collecting the appearance image information of the measured sample 100, a coordinate system of the mechanical arm 3 and the measured sample 100 is established according to the collected image information, the relative position information between the measured sample 100 and the mechanical arm 3 is recorded and used as the movable coordinate of the mechanical arm 3, and meanwhile, the measured area of the measured sample 100 is subjected to planar coordinate processing, so that an operator can conveniently mark the measured point, and the mechanical arm 3 is conveniently controlled to drive the electrostatic generator 5 to move.

In this embodiment, as shown in fig. 3 and 4, the electrostatic discharge testing device further includes a protective cover 7, and the protective cover 7 is disposed outside the vision camera 6.

For example, the shield 7 may be cylindrical, specifically, may be square cylindrical or cylindrical, etc., and the vision camera 6 is disposed inside the shield 7. The shape of the shield 7 is not intended to limit the invention.

It can be appreciated that, through setting up protection casing 7 in the outside of vision camera 6, can protect vision camera 6, damage is caused to vision camera 6 when reducing to bump, simultaneously, protection casing 7 still has certain dustproof effect, reduces the effect that the dust deposit influences vision camera 6 shooting on the lens of vision camera 6.

In the present embodiment, as shown in fig. 3 and 4, the clamping assembly 4 includes a support base 41, a clamping member 42, and an elastic member 43, and the support base 41 is disposed on the mechanical arm 3. The clamping member 42 is disposed on the support seat 41 and is movable relative to the support seat 41. The elastic member 43 has a first end and a second end in the moving direction of the clamping member 42, the first end of the elastic member 43 being connected to the support seat 41, and the second end of the elastic member 43 being connected to the clamping member 42.

Specifically, the support seat 41 is connected to the actuating end of the mechanical arm 3 by a connecting member, which may be a bolt. The specific connection manner of the connection member with the mechanical arm 3 and the supporting seat 41 can be set according to needs, and will not be described in detail herein.

For example, the elastic member 43 is a spring. Of course, the elastic member 43 may be provided in other forms, which is not limited herein.

It is understood that by providing the holding member 42 to the supporting base 41 and moving it relative to the supporting base 41, when the electrostatic generator 5 contacts the sample 100 to be tested, the elastic member 43 can be used to cushion the electrostatic generator 5 and the sample 100 to be tested, so as to reduce damage to the electrostatic generator 5 and the sample 100 to be tested.

In this embodiment, the esd testing device further includes a pressure sensor 8, the pressure sensor 8 is disposed on the supporting seat 41, and the first end of the elastic member 43 is connected to the pressure sensor 8.

Specifically, the clamping assembly 4 further includes a guiding member disposed between the support seat 41 and the pressure sensor 8 and connected to the elastic member 43, and the guiding member is used for guiding the elastic member 43. The guide members are conventional in the art and will not be described in detail herein.

For example, the pressure sensor 8 may be of the type NS-TH17A-10kg, although the pressure sensor 8 may be of other types, and is not limited thereto.

It can be understood that the pressure information between the electrostatic generator 5 and the sample 100 to be measured can be obtained by setting the pressure sensor 8, so that the position of the electrostatic generator 5 can be adjusted in time according to the pressure information between the electrostatic generator 5 and the sample 100 to be measured, and when the pressure between the electrostatic generator 5 and the sample 100 to be measured is greater than a preset value, the electrostatic generator 5 can be moved in a direction away from the sample 100 to be measured, so as to avoid damage to the electrostatic generator 5 and the sample 100 to be measured.

In the present embodiment, as shown in fig. 4, the support base 41 includes a support plate 411, two side plates 412, a guide rail 413, and a slider 414, and the support plate 411 is connected to the mechanical arm 3; the two side plates 412 are arranged at intervals on two sides of the supporting plate 411; two guide rails 413 are arranged between the two side plates 412 at parallel intervals, a sliding block 414 is arranged on each guide rail 413, the clamping component 42 is arranged on the sliding block 414, and the pressure sensor 8 is arranged between the supporting plate 411 and the clamping component 42.

Specifically, the support plate 411 and the two side plates 412 form a U-shape, and the holding member 42 is located in a space formed between the support plate 411 and the two side plates 412. The guide rail 413 may be a linear guide rail 413 or a cylindrical guide rail 413. When the guide rail 413 is a linear guide rail, the guide rail 413 may be provided on the side plate 412; when the guide rail 413 is a cylindrical guide rail, one end of the guide rail 413 is connected to the support plate 411, and the other end is connected to the adjacent side plate 412 through a fixing block. The structure of the slider 414 can be adaptively adjusted according to the shape of the guide rail 413, which will not be described in detail herein.

For example, the clamping member 42 includes a fixing plate and a clamping member, both ends of the fixing plate are respectively connected to one slider 414, and the fixing plate can be stably supported by the two sliders 414 on both sides. The clamping piece comprises a driving piece and clamping jaws, the driving piece is arranged on the fixing plate, the clamping jaws are connected with the driving piece, and the driving piece drives the clamping jaws to clamp or loosen the gun head of the static generator 5. The driving member may be a jaw cylinder, the connection between the jaw and the jaw cylinder being conventional in the art and will not be described in detail herein.

It will be appreciated that the supporting seat 41 includes a supporting plate 411 and two side plates 412, the two side plates 412 are located at two sides of the supporting plate 411, two guide rails 413 are disposed between the two side plates 412 at intervals, and the clamping member 42 is connected to the sliding blocks 414 on the two guide rails 413, so that the clamping member 42 can stably move along the guide rails 413, and form a stable support for the clamping member 42 through the two guide rails 413, which is beneficial to stably clamping the clamping member 42 to the gun head of the electrostatic generator 5, and is beneficial to stably applying a force on the pressure sensor 8 by the clamping member 42.

In this embodiment, as shown in fig. 3 and 4, the electrostatic discharge testing device further includes a laser ranging sensor 9, where the laser ranging sensor 9 is disposed on the clamping component 4.

Specifically, at least one of the two side plates 412 has an extension, the laser ranging sensor 2 is connected to the extension 7, and the extension 7 is located on a side of the side plate 412 facing away from the support plate 411. The vision camera 6 and the laser ranging sensor 2 are respectively positioned at two opposite sides of the extension part 7, so that the whole structure can be more compact.

When the gun head of the electrostatic generator 5 discharges the sample 100 to be tested in an air discharge manner, the laser ranging sensor 9 measures the distance, so that a certain distance is kept between the discharge tip of the electrostatic generator and the sample 100 to be tested according to the ranging information of the laser ranging sensor 9, and the air discharge test is completed.

In this embodiment, two laser ranging sensors 9 are provided, and the two laser ranging sensors 9 are disposed in the clamping assembly 4 at parallel intervals.

Specifically, two laser ranging sensors 9 are disposed at an interval from top to bottom. The gun head of the electrostatic generator 5 carries out electrostatic discharge in the direction perpendicular to the measured sample 100, the measured sample 100 is placed vertically, and distance measurement is carried out by arranging two laser distance measuring sensors 9, so that the gun head of the electrostatic generator is driven by the mechanical arm 3 to carry out electrostatic discharge in the horizontal direction, and the positioning accuracy is improved.

In this embodiment, as shown in fig. 1, the electrostatic discharge testing device further includes a demonstrator 10, where the demonstrator 10 is disposed on a side of the protection plate 2 away from the mechanical arm 3, and the demonstrator 10 is connected to the mechanical arm 3.

The manner of connection of the teach pendant 10 and the robotic arm 3 is conventional in the art and will not be described in detail herein.

It will be appreciated that when the sample 100 to be tested with a complex structure is encountered, and is identified by the vision camera 6 to be difficult to function, the operator can start the teaching function by using the teaching device 10, and the mechanical arm 3 can perform the electrostatic discharge operation according to the teaching track of the operator after the teaching is completed.

In this embodiment, as shown in fig. 1 and 2, the esd testing device further includes a plurality of rollers 11, and the plurality of rollers 11 are disposed at intervals at the bottom of the testing table 1.

For example, the number of the rollers 11 is four, and the four rollers 11 are distributed at four corners of the bottom of the test stand 1, however, the number of the rollers 11 may be set to other values, which is not limited herein.

It can be appreciated that the electrostatic discharge testing device can be conveniently moved by arranging the roller 11, so that the use is more convenient.

In this embodiment, as shown in fig. 1, the esd testing device further includes a handle 12, where the handle 12 is disposed on the test stand 1.

For example, the handle 12 may be disposed on top of the test bench 1 and on a side of the protection plate 2 facing away from the robot arm 3. The shape of the handle 12 may be set according to the use requirement, and is not limited herein.

It will be appreciated that by providing the handle 12, it is possible to facilitate the operator pushing the electrostatic discharge testing device.

In this embodiment, as shown in fig. 1, the electrostatic discharge testing apparatus further includes an input device and an output device, the input device is a keyboard and a mouse, the input device is disposed on the test board 1, the output device is a display, and the output device is disposed on the protection board 2. Specifically, the test bench 1 is internally provided with an industrial personal computer, control software is installed in the industrial personal computer, the controller of the mechanical arm is located in the test bench 1 through control software control hardware, the pressure sensor 8 and the laser ranging sensor 9 are electrically connected with the controller, and the controller is connected with the industrial personal computer through an RJ45 network cable. The connection manner of the industrial personal computer, the controller, the pressure sensor 8, the laser ranging sensor 9 and the like is conventional prior art, and will not be described in detail herein.

When the electrostatic discharge testing device in this embodiment works, the vision camera 7 is used for identifying the image of the tested sample 100, the position information of the tested point is determined according to the image information of the tested sample 100, the control mechanical arm 3 drives the electrostatic generator 5 to align with the tested point for testing, when air discharge is required, the laser ranging sensor 9 can be used for ranging, the distance between the electrostatic generator 5 and the tested sample 100 is controlled according to the information acquired by the laser ranging sensor 9, the manual operation of the electrostatic generator 5 is not required, the labor intensity is reduced, and the work efficiency is improved. In addition, the operators are isolated from the electrostatic generator 5 and the tested sample through the protection plate 2, so that the safety of the operators is improved.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (10)

1. An electrostatic discharge testing device, comprising:

A test bench;

The protection plate is arranged on the test bench;

the mechanical arm is arranged on the test bench and is positioned on one side of the protection plate;

The clamping assembly is connected with the mechanical arm, and the mechanical arm is used for driving the clamping assembly to move;

The static generator is arranged on the clamping assembly.

2. The electrostatic discharge testing device of claim 1, further comprising a vision camera disposed on the clamping assembly.

3. The electrostatic discharge testing device of claim 2, further comprising a protective cover disposed outside of the vision camera.

4. The electrostatic discharge testing device of claim 1, wherein the clamping assembly comprises:

the supporting seat is arranged on the mechanical arm;

the clamping component is arranged on the supporting seat and can move relative to the supporting seat;

And the elastic piece is provided with a first end and a second end in the moving direction of the clamping component, the first end of the elastic piece is connected with the supporting seat, and the second end of the elastic piece is connected with the clamping component.

5. The esd testing device of claim 4 further comprising a pressure sensor disposed on the support base and the first end of the elastic member is connected to the pressure sensor.

6. The esd testing device of claim 5, wherein the support comprises:

The supporting plate is connected with the mechanical arm;

the two side plates are arranged at two sides of the supporting plate at intervals;

guide rail and slider, two parallel interval is provided with two guide rails between the curb plate, every all be provided with on the guide rail the slider, clamping part set up in the slider, pressure sensor is located the backup pad with between the clamping part.

7. The electrostatic discharge testing device of claim 1, further comprising a laser ranging sensor disposed at the clamping assembly.

8. The electrostatic discharge testing device of claim 7, wherein two of the laser ranging sensors are disposed in parallel and spaced apart from the clamping assembly.

9. The electrostatic discharge testing device of claim 1, further comprising a demonstrator disposed on a side of the shield facing away from the mechanical arm, the demonstrator being coupled to the mechanical arm.

10. The esd testing device of any one of claims 1-9, further comprising a plurality of rollers spaced apart from the bottom of the testing table.