CN219625599U

CN219625599U - Antistatic wrist strap detection device

Info

Publication number: CN219625599U
Application number: CN202321009721.XU
Authority: CN
Inventors: 刘思; 骆乾峰; 赵龙; 胡加辉; 金从龙
Original assignee: Jiangxi Zhao Chi Semiconductor Co Ltd
Current assignee: Jiangxi Zhao Chi Semiconductor Co Ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-09-01
Anticipated expiration: 2033-04-28

Abstract

The utility model provides an antistatic wrist strap detection device, which is characterized in that a wrist strap is fixed on a first metal cylinder and a second metal cylinder, the contact position of a test wire is fixed, a stepping motor is controlled by a control module to drive a ball screw to move, so that a sliding block component is driven to move, tension is applied to a wrist strap, the first metal cylinder is connected with a second test socket through the test wire, a grounding wire of the wrist strap is connected with the first test socket, the system resistance of the wrist strap under the condition of applying a certain tension can be measured, and the system resistance of the wrist strap under different tensions can be simulated by adjusting a sliding component.

Description

Antistatic wrist strap detection device

Technical Field

The utility model relates to the field of wrist strap static detection, in particular to an anti-static wrist strap detection device.

Background

In order to control the damage of static electricity to products, semiconductor manufacturing industry generally requires personnel to wear anti-static wrist bands, and aims to guide static electricity generated by human bodies to a public ground point through the wrist bands, so that a large number of anti-static wrist bands are required to be used in a semiconductor manufacturing shop. To ensure the quality of the wrist strap, it is necessary to detect the system resistance of the wrist strap.

The current mainstream method is to connect one end of the megohmmeter to the skin contact surface of the wrist strap using a test wire, and the other end to a ground connector of the wrist strap ground wire, and then test the magnitude of the system resistance thereof by means of the megohmmeter. Because the wrist strap is not fixed by the device, when each tester performs system resistance test, the positions of the skin contact surfaces of the wrist strap are not consistent by using the test wire, so that the system resistance of each test is greatly different, and the system resistance of the wrist strap under the condition of applying certain tensile force (simulating the wearing environment of different people) cannot be measured.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings of the prior art, provides an anti-static wrist strap detection device, and aims to solve the problems in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an antistatic wrist strap detection device comprises an insulating base table, wherein a control box is arranged at one end of the insulating base table, and a boss is arranged at the other end of the insulating base table; the control box is provided with a control module, a ball screw is arranged between the control box and the boss, the ball screw is connected with a stepping motor arranged in the control box, and the stepping motor is connected with the control module; the boss is provided with a bracket, the bracket is provided with a tension sensor connected with the control module, and the tension sensor is connected with a first metal cylinder; the ball screw is connected with a sliding block assembly, the sliding block assembly is connected with a second metal cylinder matched with the first metal cylinder, and two ends of the wrist strap are respectively sleeved on the first metal cylinder and the second metal cylinder; the boss is further provided with a first test socket and a second test socket which are connected with the control module, the grounding wire of the wrist strap is connected with the first test socket, and the first metal cylinder is connected with the second test socket through the test wire.

The beneficial effects of the utility model are as follows: the wrist strap is fixed on the first metal cylinder and the second metal cylinder, the contact position of the test wire is fixed, the stepping motor is controlled by the control module to drive the ball screw to move, so that the sliding block assembly is driven to move, tension is applied to the wrist strap, the first metal cylinder is connected with the second test socket through the test wire, the grounding wire of the wrist strap is connected with the first test socket, the system resistance of the wrist strap under the condition of applying a certain tension can be measured, and the system resistance of the wrist strap under different tensions can be simulated by adjusting the sliding assembly.

Further, a display screen, control keys and a switch key which are connected with the control module are arranged on the control box.

Further, the slider assembly includes a slide rail provided on the base frame, a slider fitted with the slide rail, and a connection block connected to the slider.

Further, the sliding block is connected with the ball screw, and the second metal cylinder is fixed on the connecting block.

Further, the number of the sliding rails is 2, and the two sliding rails are respectively arranged on two sides of the ball screw.

Further, sliding grooves matched with the two sliding rails are formed in the bottom surfaces of the two ends of the sliding block.

Further, a jack is arranged on the second metal cylinder, and the test wire is connected with the jack.

Further, a reset key connected with the control module is further arranged on the control box, and the reset key enables the sliding block assembly to return to the initial position.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of an antistatic wrist strap detection device according to an embodiment of the present utility model under a first viewing angle.

Fig. 2 is a schematic perspective view of an antistatic wrist strap detection device according to an embodiment of the present utility model under a second viewing angle.

Fig. 3 is a schematic side view of an antistatic wrist band detection device according to an embodiment of the utility model.

Wherein 1 is an insulating base table, 1-1 is a boss, 1-2 is a first test socket, 1-3 is a second test socket, 2 is a control box, 2-1 is a display screen, 2-2 is a control key, 2-3 is a switch key, 3 is a bracket, 3-1 is a tension sensor, 4 is a sliding block component, 4-1 is a connecting block, 4-2 is a sliding block, 5 is a wrist strap, 5-1 is a grounding wire, 6 is a sliding rail, 7 is a ball screw, 8 is a test wire, 9 is a second metal cylinder, 10 is a first metal cylinder, and 10-1 is a jack.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

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 one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

The present utility model will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, an antistatic wrist strap detection device according to an embodiment of the present utility model includes an insulation base table 1, wherein a control box 2 is installed at one end of the insulation base table 1, and a boss 1-1 is provided at the other end of the insulation base table 1; the control box 2 is provided with a control module, and a ball screw 7 is arranged between the control box 2 and the boss 1-1.

Specifically, the control box 2 is provided with a display screen 2-1, control keys 2-2 and a switch key 2-3 which are connected with the control module, and the switch key 2-3 controls the on-off of the device.

Specifically, the control box 2 is further provided with a reset key connected with the control module, and the reset key enables the slider assembly 4 to return to the initial position.

It is worth to say that, in the aspect of control, a control center is formed by a control module, a display screen 2-1, a control key 2-2 and a reset key, the control module is a singlechip, and the control key 2-2 comprises a left key, a right key and a stop key.

The ball screw 7 is connected with a stepping motor arranged in the control box, and the stepping motor is connected with the control module; a support 3 is arranged on the boss 1-1, a tension sensor 3-1 connected with the control module is arranged on the support 3, and a first metal cylinder 10 is connected to the tension sensor 3-1; the ball screw 7 is connected with a sliding block assembly 4.

Specifically, the slider assembly 4 includes a sliding rail 6 provided on the insulating base table 1, a slider 4-2 matched with the sliding rail 6, and a connection block 4-1 connected to the slider 4-2, the slider 4-2 is connected to the ball screw 7, and the second metal cylinder 9 is fixed on the connection block 4-1.

Specifically, 2 slide rails 6 are provided, and two slide rails 6 are respectively provided on two sides of the ball screw 7.

Specifically, the bottom surfaces of the two ends of the sliding block 4-2 are provided with sliding grooves matched with the two sliding rails 6.

The sliding block assembly 4 is connected with a second metal cylinder 9 matched with the first metal cylinder 10, two ends of the wrist strap 5 are respectively sleeved on the first metal cylinder 10 and the second metal cylinder 9, the wrist strap 5 is fixed on the first metal cylinder 10 and the second metal cylinder 9, the contact position of the test wire 8 is fixed, and the measurement accuracy is improved; the boss 1-1 is further provided with a first test socket 1-2 and a second test socket 1-3 which are connected with the control module, the grounding wire 5-1 of the wrist strap 5 is connected with the first test socket 1-2, the second metal cylinder 9 is connected with the second test socket 1-3 through a test wire 8, the first metal cylinder 10 is provided with a jack 10-1, and the test wire 8 is connected with the jack 10-1.

Specifically, the single chip microcomputer controls the stepping motor, and then the stepping motor drives the ball screw 7 to rotate, so that the sliding block 4-2 is driven to move left and right, the left key and the right key can be pressed to control the distance of the sliding block 4-2 moving left and right, the stop key controls the sliding block 4-2 to stop moving, and the reset key controls the sliding block 4-2 to move to the original point position.

The tension sensor 3-1 can be controlled by the single chip microcomputer through operating the display screen 2-1, the tension value is displayed on the display screen 2-1, a voltage of 10V or 100V is input to the wrist strap 5 to be tested through operating the display screen 2-1, the system resistance value of the wrist strap 5 is measured, and then the system resistance value is displayed in the display screen 2-1.

It should be noted that, the control module controls the stepper motor to drive the ball screw 7 to move, so as to drive the sliding block assembly 4 to move, thereby applying a tensile force to the wrist strap 5, the first metal cylinder 10 is connected with the second test socket 1-3 through the test wire 8, the grounding wire 5-1 of the wrist strap 5 is connected with the first test socket 1-2, the system resistance of the wrist strap 5 under the condition of applying a certain tensile force can be measured, and the system resistance of the wrist strap 5 under different tensile forces can be simulated by adjusting the sliding assembly 4.

The operation flow is as follows:

1. pressing the reset key button, the slider 4-2 will move to the origin position;

2. fixing wrist strap 5: the wrist strap 5 is fixed to the first metal cylinder 10 and the second metal cylinder 9 with the inside facing, and the ground wire 5-1 outside the wrist strap 5 is connected to the first test socket 1-2.

3. And (3) moving a sliding block: pressing the left button controls the sliding block 4-2 to move to the left, so that pulling force is applied to the tested wrist strap 5, fine adjustment can be continuously performed through the left button and the right button until the pulling force value displayed by the display screen 2-1 reaches the required size, and pressing the stop button stops the sliding block.

4. Testing system resistance: one end of a banana test wire 8 is inserted into a jack 10-1 of a first metal cylinder 10, the other end of the banana test wire is connected to a second test socket 1-3, a grounding wire 5-1 of a tested wrist 5 is inserted into a first test socket 1-2, a voltage of 10V is input to the tested wrist strap 5 through a display screen 2-1, and 15 seconds later, the tested wrist strap 5 is read on the display screen 2-1System resistance value, if the system resistance value is greater than 1×10 ⁶ And omega, changing the input voltage to 100V and reading the system resistance value after 15 seconds.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. An antistatic wrist strap detection device is characterized by comprising an insulating base table, wherein one end of the insulating base table is provided with a control box, and the other end of the insulating base table is provided with a boss; the control box is provided with a control module, a ball screw is arranged between the control box and the boss, the ball screw is connected with a stepping motor arranged in the control box, and the stepping motor is connected with the control module; the boss is provided with a bracket, the bracket is provided with a tension sensor connected with the control module, and the tension sensor is connected with a first metal cylinder; the ball screw is connected with a sliding block assembly, the sliding block assembly is connected with a second metal cylinder matched with the first metal cylinder, and two ends of the wrist strap are respectively sleeved on the first metal cylinder and the second metal cylinder; the boss is further provided with a first test socket and a second test socket which are connected with the control module, the grounding wire of the wrist strap is connected with the first test socket, and the first metal cylinder is connected with the second test socket through the test wire.

2. The antistatic wrist strap detection device according to claim 1, wherein a display screen, control keys and a switch key connected with the control module are arranged on the control box.

3. An antistatic wrist strap inspection apparatus according to claim 1 wherein the slider assembly comprises a slide rail provided on the base platform, a slider cooperating with the slide rail, and a connection block connected to the slider.

4. An antistatic wrist strap inspection apparatus according to claim 3 wherein said slider is connected to said ball screw and said second metal cylinder is secured to said connection block.

5. The anti-static wrist strap detection device according to claim 4 wherein 2 slide rails are provided, and two slide rails are respectively provided on both sides of the ball screw.

6. The anti-static wrist strap detection device according to claim 5 wherein the bottom surfaces of the two ends of the slider are provided with sliding grooves which are matched with the two sliding rails.

7. The antistatic wrist strap inspection apparatus according to claim 1 wherein said second metal cylinder is provided with a socket, said test wire being connected to said socket.

8. The antistatic wrist strap detection device of claim 1 wherein the control box is further provided with a reset key connected to the control module, the reset key allowing the slider assembly to return to an initial position.