Electrostatic test frame convenient to adjust

Abstract

The utility model discloses a static test frame convenient to adjust, which relates to the technical field of static test and comprises a base, a mounting ring is fixedly connected to the middle of the bottom of the base, an adsorption structure for fixing the base is mounted at the bottom of the base and inside the mounting ring, and the adsorption structure comprises a sucker mounted inside the mounting ring. And the side top of the sucker is connected with the bottom of the mounting ring. According to the electrostatic test frame convenient to adjust, the suction cup is deformed by rotating the rotary knob on the outer side of the mounting sleeve and driving the screw rod, so that the internal air pressure is reduced, a negative pressure area is formed, the suction cup can be firmly attached to a plane by utilizing the pressure difference between the external atmospheric pressure and the internal low air pressure of the suction cup, an additional clamp or tool is not needed, and the adjustment is convenient. In the testing process, even if the static testing frame is subjected to external vibration or slight impact, the static testing frame can keep stable, and structure looseness or position deviation is avoided, so that the accuracy and reliability of testing data are ensured.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic testing technology, specifically to an easily adjustable electrostatic testing fixture. Background Technology

[0002] An electrostatic discharge (ESD) test fixture is a specialized device used to test and measure the electrostatic discharge sensitivity and interference resistance of electrical equipment or electronic components. However, the operation of existing ESD test fixtures for extended periods during testing can easily lead to operator fatigue.

[0003] To overcome the above-mentioned defects, a prior art Chinese patent (publication number: CN209132304U) discloses an electrostatic gun positioning bracket for electrostatic testing, including a chassis mechanism, a main support, a connecting arm, and an electrostatic gun. The chassis mechanism is equipped with a main support, and the main support is equipped with a fixing mechanism. One end of the fixing mechanism is equipped with a counterweight, and the other end is equipped with a connecting arm. The electrostatic gun is installed at the front end of the connecting arm. This reduces the deviation of test results, greatly improves the efficiency of testing, and the product is small in size, has a precise structural design, is easy to move, is easy for personnel to operate, and supports testing at any angle, thus having extremely high flexibility.

[0004] While existing technologies can overcome the shortcomings mentioned above, other problems still exist during their operation: the electrostatic test rack is prone to tipping over when placed on a table, and operators will come into direct contact with each other during adjustment, which can easily lead to charge transfer. Utility Model Content

[0005] The purpose of this invention is to provide an easily adjustable electrostatic test stand to solve the problems in the background art where the electrostatic test stand is prone to tipping over when placed on a table, and where operators will come into direct contact with each other during adjustment, which can easily lead to charge transfer.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable electrostatic test frame, including a base, wherein a mounting ring is fixedly connected to the middle of the bottom of the base;

[0007] The bottom of the base and the inside of the mounting ring are equipped with an adsorption structure for fixing the base. The adsorption structure includes a suction cup installed inside the mounting ring, and the top side of the suction cup is connected to the bottom of the mounting ring. A screw is rotatably connected to the top center of the suction cup.

[0008] An adjustment structure for adjusting the bracket is installed on one side of the top of the base.

[0009] Preferably, a mounting sleeve is fixedly connected to the top center of the base, and the mounting sleeve has an opening in the middle that is aligned with the top of the suction cup, and a screw is slidably connected inside the mounting sleeve.

[0010] Preferably, a knob is rotatably connected to the outside of the mounting sleeve, and the knob has a threaded hole in the middle that is aligned with the middle of the mounting sleeve, and a screw is threadedly connected to the middle of the knob through the threaded hole.

[0011] Preferably, the adjustment structure includes a fixed box fixedly connected to one end of the top of the base, and a gear is rotatably connected inside the fixed box. The connection between the gear and the fixed box is damped, and an adjustment gear is engaged on the side of the gear. The adjustment gear is designed to be self-tightening.

[0012] Preferably, a rotating block is installed on the top of the fixed box, and the bottom of the rotating block is fixedly connected to a gear inside the fixed box. A support rod is fixedly connected to the top of the rotating block, and a telescopic rod is slidably connected inside the support rod. The telescopic rod is designed as a hollow structure, and a threaded hole is provided in the middle of the bottom of the telescopic rod.

[0013] Preferably, a first lead screw is rotatably connected inside the telescopic rod, and the first lead screw is threadedly connected to a threaded hole in the middle of the bottom of the telescopic rod. A bevel tooth is fixedly connected to the lower end of the first lead screw, and the lower end of the first lead screw is located inside the rotating block.

[0014] Preferably, a drive rod is rotatably connected inside the rotating block, and a bevel tooth is fixedly connected to the end of the drive rod. The bevel tooth at the end of the drive rod meshes with the bevel tooth at the lower end of the first lead screw. The drive rod is designed as a self-tightening structure.

[0015] Preferably, two symmetrically distributed guide rails are fixedly connected to one side of the top of the telescopic rod, and a second lead screw is rotatably connected between the two guide rails. A slider is slidably connected between the two guide rails, and the middle of the slider is threaded to the outside of the second lead screw. The second lead screw is designed to be self-tightening. Two fixing rings are fixedly connected to the top of the second lead screw, and a fixing screw is threaded to the outside of each fixing ring.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This easily adjustable electrostatic test fixture uses a knob on the outside of the mounting sleeve to drive a screw, causing the suction cup to deform and reducing its internal air pressure. This creates a negative pressure zone, and by utilizing the pressure difference between the external atmospheric pressure and the low internal air pressure of the suction cup, the suction cup can firmly adhere to the surface without the need for additional clamps or tools. During testing, even under external vibration or slight impact, the electrostatic test fixture can maintain stability, preventing structural loosening or positional displacement, thus ensuring the accuracy and reliability of the test data.

[0018] Angle adjustment is achieved by precisely rotating the gear-driven rotating block, allowing the support rod to be tilted in any direction with accurate tilt angle adjustment; height adjustment is achieved by the drive rod controlling the first lead screw to move the telescopic rod up and down, allowing users to quickly adjust the equipment height according to testing needs; horizontal position adjustment is achieved by the second lead screw pushing the slider to slide along the guide rail, realizing the precise horizontal positioning of the test frame assembly. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the base of this utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing box of this utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the rotating block of this utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the telescopic rod of this utility model;

[0024] Figure 6 This is a schematic diagram of the slider structure of this utility model.

[0025] In the diagram: 1. Base; 2. Mounting ring; 3. Suction cup; 4. Screw; 5. Knob; 6. Mounting sleeve; 7. Fixing box; 8. Rotating block; 9. Adjusting gear; 10. Support rod; 11. Telescopic rod; 12. First lead screw; 13. Drive rod; 14. Guide rail; 15. Second lead screw; 16. Slider; 17. Fixing ring; 18. Fixing screw. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: Please refer to Figure 1 - Figure 6The present invention provides the following technical solution: an adjustable electrostatic test frame, comprising a base 1, wherein a mounting ring 2 is fixedly connected to the bottom center of the base 1; an adsorption structure for fixing the base 1 is installed at the bottom of the base 1 and inside the mounting ring 2, the adsorption structure including a suction cup 3 installed inside the mounting ring 2, wherein the top side of the suction cup 3 is connected to the bottom of the mounting ring 2, and a screw 4 is rotatably connected to the top center of the suction cup 3; an adjustment structure for adjusting the bracket is installed on one side of the top of the base 1; a mounting sleeve 6 is fixedly connected to the top center of the base 1, wherein the mounting sleeve 6 has an opening in the middle aligned with the top of the suction cup 3, and the screw 4 is slidably connected inside the mounting sleeve 6; a knob 5 is rotatably connected to the outside of the mounting sleeve 6, wherein the knob 5 has a threaded hole in the middle aligned with the middle of the mounting sleeve 6, and the screw 4 is threadedly connected to the middle of the knob 5 through the threaded hole.

[0028] When the base 1 is placed on a flat surface, the suction cup 3 is located at the bottom of the base 1, and its edge fits tightly against the surface. At this time, the top center of the suction cup 3 is connected to the inside of the mounting ring 2 by the screw 4 and remains in its initial state. The user rotates the knob 5 on the outside of the mounting sleeve 6, which drives the internal threaded hole to act on the screw 4. When the knob 5 is rotated counterclockwise, the threaded transmission causes the screw 4 to gradually move upward along the opening of the mounting sleeve 6. Since the screw 4 is directly connected to the top of the suction cup 3, the upward movement of the screw 4 will cause the top of the suction cup 3 to be stretched upward. At this time, the suction cup 3 deforms, and its internal space increases. After the internal space of the suction cup 3 increases, the internal air pressure will drop rapidly, creating a relatively low-pressure environment. Since the atmospheric pressure on the external surface is higher than the air pressure inside the suction cup, the suction cup 3 is firmly attached to the surface, forming a strong fixing force. This adsorption effect stably fixes the base 1 on the surface, preventing the electrostatic test frame from moving or tipping over due to external forces, thereby ensuring the stability of the equipment during the test.

[0029] Example 2: Based on Example 1, an adjustment structure is also disclosed, the specific structure of which is as follows: The adjustment structure includes a fixed box 7 fixedly connected to one end of the top of the base 1, and a gear is rotatably connected inside the fixed box 7. The connection between the gear and the fixed box 7 is damped, and an adjustment gear 9 is meshed on the side of the gear. The adjustment gear 9 is a self-tightening structure. A rotating block 8 is installed on the top of the fixed box 7, and the bottom of the rotating block 8 is fixedly connected to the gear inside the fixed box 7. A support rod 10 is fixedly connected to the top of the rotating block 8, and a telescopic rod 11 is slidably connected inside the support rod 10. The telescopic rod 11 is a hollow structure, and a threaded hole is provided in the middle of the bottom of the telescopic rod 11. A first lead screw 12 is rotatably connected inside the telescopic rod 11, and the first lead screw 12 is threaded into the threaded hole in the middle of the bottom of the telescopic rod 11. The first lead screw 12 is fixedly connected to a bevel tooth at its lower end, and the lower end of the first lead screw 12 is located inside the rotating block 8. A drive rod 13 is rotatably connected inside the rotating block 8, and a bevel tooth is fixedly connected to the end of the drive rod 13. The bevel tooth at the end of the drive rod 13 meshes with the bevel tooth at the lower end of the first lead screw 12. The drive rod 13 is designed to be self-tightening. Two symmetrically distributed guide rails 14 are fixedly connected to one side of the top of the telescopic rod 11. A second lead screw 15 is rotatably connected between the two guide rails 14. A slider 16 is slidably connected between the two guide rails 14. The middle of the slider 16 is threaded to the outside of the second lead screw 15. The second lead screw 15 is designed to be self-tightening. Two fixing rings 17 are fixedly connected to the top of the second lead screw 15, and a fixing screw 18 is threaded to the outside of each fixing ring 17.

[0030] When the angle of the electrostatic test frame needs to be adjusted, the user manually rotates the adjusting gear 9. Since the adjusting gear 9 meshes with the gear at the bottom of the rotating block 8, and the radius of the adjusting gear 9 is much smaller than the radius of the gear at the bottom of the rotating block 8, this meshing design forms a deceleration structure. The existence of the deceleration structure ensures that every tiny rotation of the adjusting gear 9 precisely controls the rotation amount of the gear at the bottom of the rotating block 8. Ultimately, by rotating the rotating block 8, the angle of the support rod 10 is adjusted. The support rod 10 is fixedly connected to the top of the rotating block 8, so the support rod 10 changes direction along with the rotating block 8, thereby adjusting the orientation angle of the entire electrostatic test frame.

[0031] The user can rotate the drive rod 13, the end of which is provided with bevel teeth. The rotation of the bevel teeth will cause the bevel teeth at the lower end of the first lead screw 12 to mesh with each other, and cause the first lead screw 12 to start rotating inside the telescopic rod 11. Since the first lead screw 12 is connected to the threaded hole at the bottom of the telescopic rod 11, when the first lead screw 12 rotates, it will push the telescopic rod 11 to slide up and down along the inside of the support rod 10. This up and down sliding of the telescopic rod 11 directly realizes the adjustment of the height of the electrostatic test frame. By rotating the drive rod 13 in the opposite direction, the telescopic rod 11 can be moved in the opposite direction, thereby reducing the height.

[0032] The testing equipment is typically fixed in two symmetrically distributed retaining rings 17, which are further secured by fixing screws 18. The user can rotate the second lead screw 15, which causes the slider 16 to slide horizontally between the two guide rails 14. Since the second lead screw 15 and the slider 16 are connected by threads, the horizontal sliding of the slider 16 directly affects the position of the retaining rings 17, thereby adjusting the horizontal position of the testing equipment on the electrostatic testing frame. This can meet different testing requirements, such as the need for different horizontal alignment points.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable electrostatic test fixture, comprising a base (1), wherein a mounting ring (2) is fixedly connected to the middle of the bottom of the base (1); Its features are: The bottom of the base (1) and the inside of the mounting ring (2) are equipped with an adsorption structure for fixing the base (1). The adsorption structure includes a suction cup (3) installed inside the mounting ring (2), and the top of the side of the suction cup (3) and the bottom of the mounting ring (2) are connected to each other. A screw (4) is rotatably connected to the top center of the suction cup (3). The base (1) has an adjustment structure installed on one side of its top to adjust the bracket.

2. The adjustable electrostatic test fixture according to claim 1, characterized in that: The base (1) has a mounting sleeve (6) fixedly connected to the top center, and the mounting sleeve (6) has an opening in the middle that is aligned with the top of the suction cup (3), and the screw (4) is slidably connected inside the mounting sleeve (6).

3. The adjustable electrostatic test fixture according to claim 2, characterized in that: The mounting sleeve (6) is rotatably connected to a knob (5), and the knob (5) has a threaded hole in the middle that is aligned with the middle of the mounting sleeve (6), and the screw (4) is threadedly connected to the middle of the knob (5) through the threaded hole.

4. The adjustable electrostatic test fixture according to claim 1, characterized in that: The adjustment structure includes a fixed box (7) fixedly connected to one end of the top of the base (1), and a gear is rotatably connected inside the fixed box (7). The connection between the gear and the fixed box (7) is damped, and an adjustment gear (9) is meshed on the side of the gear. The adjustment gear (9) is a self-tightening structure.

5. The adjustable electrostatic test fixture according to claim 4, characterized in that: The top of the fixed box (7) is equipped with a rotating block (8), and the bottom of the rotating block (8) is fixedly connected to the gear inside the fixed box (7). The top of the rotating block (8) is fixedly connected to a support rod (10), and a telescopic rod (11) is slidably connected inside the support rod (10). The telescopic rod (11) is designed as a hollow structure, and a threaded hole is provided in the middle of the bottom of the telescopic rod (11).

6. The adjustable electrostatic test fixture according to claim 5, characterized in that: The telescopic rod (11) is rotatably connected to a first lead screw (12), and the first lead screw (12) is threadedly connected to the threaded hole in the middle of the bottom of the telescopic rod (11). The lower end of the first lead screw (12) is fixedly connected to a bevel tooth, and the lower end of the first lead screw (12) is located inside the rotating block (8).

7. The adjustable electrostatic test fixture according to claim 6, characterized in that: The rotating block (8) is rotatably connected to a drive rod (13), and the end of the drive rod (13) is fixedly connected to a bevel tooth. The bevel tooth at the end of the drive rod (13) meshes with the bevel tooth at the lower end of the first lead screw (12). The drive rod (13) is designed to be self-tightening.

8. The adjustable electrostatic test fixture according to claim 7, characterized in that: The top side of the telescopic rod (11) is fixedly connected to two symmetrically distributed guide rails (14), and a second lead screw (15) is rotatably connected between the two guide rails (14). A slider (16) is slidably connected between the two guide rails (14), and the middle of the slider (16) is threaded to the outside of the second lead screw (15). The second lead screw (15) is designed as a self-tightening structure. The top of the second lead screw (15) is fixedly connected to two fixing rings (17), and each fixing ring (17) is threaded to the outside of a fixing screw (18).

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