Novel integrated circuit test bench pressing device
By using a single-sided motion cam driven by a rotary motor in the downpressure device of the integrated circuit test machine, the impact risk that traditional devices may be caused when adjusting is solved, the safety and accuracy of the test is improved, and the possibility of equipment damage is reduced through protection mechanisms.
Patent Information
- Application Number
- CN202421415819.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-06-20
AI Technical Summary
Traditional machine down-pressure devices may cause unnecessary impacts during integrated circuit testing during positive and negative adjustment, affecting the accuracy and efficiency of the test, and may cause damage to the product. At the same time, the lack of an effective protection mechanism increases the risks during the testing process.
A rotary motor is used to drive the cam to rotate and a retaining wall is set on the cam to ensure that the cam can only move 1 sideways. Quick correction is performed by reverse rotation of the rotating motor and triggering an overload protection mechanism to prevent equipment damage.
It effectively avoids the impact risks brought by positive and negative adjustment, improves the safety and reliability of tests, reduces the possibility of operational errors, and ensures the stability and accuracy of integrated circuit testing.
Smart Images

Figure CN222965265U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of integrated circuit testing, in particular to a novel under-table pressing device for an integrated circuit tester. Background Art
[0002] In the technical field of integrated circuit testing, traditional under-table pressing devices usually use cam graduation lines for adjustment. The right side of the cam graduation line represents the positive adjustment range, while the left side represents the negative adjustment range. Although this design meets the testing requirements to a certain extent, there are some deficiencies. Especially when making positive and negative adjustments, due to the limitations of the adjustment method, it may cause unnecessary impacts on the integrated circuit during the testing process, which not only affects the accuracy and efficiency of the testing, but also may damage the product itself. In addition, when parameter settings are incorrect, there is a lack of effective protection mechanisms, further increasing the risks during the testing process. Summary of the Utility Model
[0003] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a novel under-table pressing device for an integrated circuit tester is proposed.
[0004] To achieve the above purpose, the utility model adopts the following technical scheme: A novel under-table pressing device for an integrated circuit tester, including a rotary motor, the rotary motor is connected with a cam through a bushing, the rotary motor drives the cam to rotate through left and right rotation, a retaining wall is arranged on the cam, and the retaining wall enables the cam to only move unidirectionally.
[0005] As a further description of the above technical scheme:
[0006] One end of the cam provided with the retaining wall is fixedly connected with a pressure rod.
[0007] As a further description of the above technical scheme:
[0008] One end of the pressure rod away from the cam is fixedly connected with a suction nozzle.
[0009] As a further description of the above technical scheme:
[0010] The rotary motor is arranged at the top of the under-table pressing device, and the rotary motor is connected with a sorter.
[0011] The utility model has the following beneficial effects: The under-pressure device of the integrated circuit tester of the utility model, through innovative design, effectively solves the defects in the prior art and has remarkable beneficial effects. Firstly, the device uses a rotary motor to drive the cam to rotate. Through the retaining wall design on the cam, it is ensured that the cam can only move unidirectionally, thus avoiding the impact risk caused by positive and negative adjustment. Secondly, when the parameters of the bi-directional cam are set incorrectly, the motor can be rotated in the reverse direction for quick correction, while the unidirectional cam will trigger the overload protection mechanism of the motor when reversed, effectively preventing equipment damage caused by incorrect parameter settings. This design not only improves the safety and reliability of the test, but also reduces the possibility of operation errors through the anti-fooling mechanism, ensuring the stability and accuracy of the integrated circuit test. Brief Description of the Drawings
[0012] Figure 1 is a schematic structural view of the under-pressure device of the new integrated circuit tester proposed by the utility model;
[0013] Figure 2 is a schematic structural view of the cam of the under-pressure device of the new integrated circuit tester proposed by the utility model.
[0014] Legend Explanation:
[0015] 1, rotary motor; 2, cam; 3, pressure rod; 4, suction nozzle; 21, retaining wall. Specific Embodiment
[0016] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.
[0017] Refer to Figure 1-2 , an embodiment provided by the utility model: The under-pressure device of the new integrated circuit tester includes a rotary motor 1. The rotary motor 1 is connected with a cam 2 through a bushing. The rotary motor 1 drives the cam 2 to rotate through left and right rotation. A retaining wall 21 is arranged on the cam 2. The retaining wall 21 enables the cam 2 to only move unidirectionally. One end of the cam 2 provided with the retaining wall 21 is fixedly connected with a pressure rod 3. One end of the pressure rod 3 away from the cam 2 is fixedly connected with a suction nozzle 4. The rotary motor 1 is arranged at the top of the under-pressure device. The rotary motor 1 is connected with the sorter.
[0018] The core component of the device is the rotary motor 1, which is located at the top of the under-pressure device and is responsible for driving the entire under-pressure action. The design of the rotary motor 1 ensures that it can stably provide the required power.
[0019] The rotating motor 1 is connected to the cam 2 through a bushing. The function of the bushing is to support and guide the rotation of the cam 2, ensuring its stability and accuracy during rotation.
[0020] The cam 2 is a key component for realizing the pressing-down action, and a retaining wall 21 is provided thereon. The presence of the retaining wall 21 restricts the rotation direction of the cam 2, ensuring that the cam 2 can only move unidirectionally, thereby avoiding the impact and risks that may be brought about by two-way adjustment.
[0021] One end of the cam 2 is connected to the pressure bar 3 by a fixed connection, and the other end of the pressure bar 3 is fixedly connected with a suction nozzle 4. This design enables the rotation of the cam 2 to be directly converted into the up-and-down movement of the pressure bar 3 and the suction nozzle 4.
[0022] The rotating motor 1 is connected to the sorter, which means that the pressing-down device can be integrated with the existing sorting system to realize an automated integrated circuit testing process.
[0023] Working principle: Located at the top of the pressing-down device and connected to the sorter, the rotating motor 1 drives the cam 2 to rotate through left-right rotation control. The presence of the retaining wall 21 of the cam 2 enables the rotating motor 1 to only move unidirectionally. One end of the cam 2 with the retaining wall 21 is connected to the rotating motor 1 through a bushing, and the other end is connected to the pressure bar 3. The rotation of the cam 2 drives the pressure bar 3 to move up and down. One end of the pressure bar 3 is in contact with the cam 2. When the cam 2 rotates, it will push the pressure bar 3 to move up and down. The other end of the pressure bar 3 is connected to the suction nozzle 4, and the suction nozzle 4 is connected to the bottom end of the pressure bar 3. When the pressure bar 3 moves up and down, the suction nozzle 4 will also move up and down accordingly.
[0024] The working principle of the present utility model is based on the driving effect of the rotating motor 1, and the testing of the integrated circuit is realized through the following steps:
[0025] Motor startup: When the testing process starts, the rotating motor 1 starts and begins to rotate;
[0026] Rotation of the cam 2: The rotation of the motor drives the bushing and the cam 2 to rotate. Due to the restriction of the retaining wall 21 on the cam 2, the cam 2 can only rotate in one direction;
[0027] Pressing down of the pressure bar 3: As the cam 2 rotates, the pressure bar 3 is pushed to move downward, thereby driving the suction nozzle 4 to press downward to achieve the testing contact with the integrated circuit;
[0028] Action of the suction nozzle 4: Driven by the pressure bar 3, the suction nozzle 4 can accurately contact the testing point of the integrated circuit to complete the necessary testing operations;
[0029] Motor Reverse and Protection: If the operator makes a mistake in parameter setting, the rotating motor 1 can rotate in reverse to correct the mistake. At the same time, if the cam 2 attempts to rotate in reverse, the overload protection mechanism of the motor will be triggered to prevent equipment damage;
[0030] Test Completion: After the test is completed, the motor stops rotating, and the pressure rod 3 and the suction nozzle 4 return to their initial positions, ready for the next test.
[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A novel integrated circuit test machine pressing device, comprising a rotary motor (1), characterized in that: The rotary motor (1) is connected to a cam (2) via a shaft sleeve. The rotary motor (1) drives the cam (2) to rotate by rotating left and right. A retaining wall (21) is provided on the cam (2). The retaining wall (21) allows the cam (2) to maintain only unilateral movement.
2. The novel integrated circuit test machine pressing device according to claim 1 is characterized in that: The cam (2) is provided with a retaining wall (21) and one end thereof is fixedly connected to a pressure rod (3).
3. The novel integrated circuit test machine pressing device according to claim 2 is characterized in that: One end of the pressure rod (3) away from the cam (2) is fixedly connected to a suction nozzle (4).
4. The novel integrated circuit test machine pressing device according to claim 3 is characterized in that: The rotary motor (1) is arranged on the top of the pressing device, and the rotary motor (1) is connected to the sorting machine.