A horizontal transfer machine loading port crane jig for semiconductor packaging

Abstract

The utility model belongs to but is not limited to the field of semiconductor device packaging technology discloses a kind of for semiconductor packaging translation type sorting machine loading port travelling crane jig, including travelling crane seat, fixed frame is respectively arranged in travelling crane seat two sides, track is arranged on fixed frame bottom plate, first slider is arranged on track, travelling crane seat is connected with right side fixed frame slidingly by first slider;Cylinder is connected with second slider by universal joint, second slider is located on left side fixed frame slide rail, second slider is connected with travelling crane rocker arm lower end, travelling crane rocker arm upper end is connected with travelling crane seat.The utility model can satisfy DIP direct insertion type / SOP paster type semiconductor packaging form's sorting machine conveying function, there is reliable stability and the convenience of operation, improve equipment capacity, increase the accuracy of product sorting machine transmission, enhance the stability of equipment.

Description

Technical Field

[0001] This utility model belongs to, but is not limited to, the field of semiconductor device packaging technology, and particularly relates to a gantry crane fixture for the loading port of a translational sorting machine used for semiconductor packaging. Background Technology

[0002] In the semiconductor discrete device and IC packaging industry, after chip packaging, curing, and lead cutting, it is necessary to test the internal performance parameters of the chip and use a sorting machine for transmission and sorting. This sorting requires a sorting machine, and before sorting, the test product must be moved to a designated position on the equipment, requiring a certain level of stability and accuracy to support the entire transmission process. Existing translational sorting machines typically have a loading port trolley that corresponds to the resin surface of the test product. Due to transmission characteristics, after the fixture is manufactured, there may be abnormalities in tolerances and fit performance, making it impossible to guarantee good transmission accuracy for the test product. This results in the inability to accurately reach the parameter testing position during transmission, causing mismeasurements and product damage, affecting equipment parameters. Loose connections can also cause damage to the product / equipment.

[0003] In automated sorting equipment for semiconductor packaging, existing loading port overhead crane fixtures mostly adopt fixed or simple slide rail structures, which have the following technical problems:

[0004] 1. Insufficient flexibility: Traditional overhead crane fixtures have a relatively simple structural design, making it difficult to adapt to semiconductor packaging products of different specifications and sizes, thus limiting the equipment's versatility and adaptability.

[0005] 2. Limited positioning accuracy: Due to the lack of effective limiting and guiding mechanisms, the fixture is prone to deviation during operation, affecting the accuracy and efficiency of material feeding.

[0006] Therefore, existing technologies are insufficient in adapting to diverse product demands and improving material loading accuracy. There is an urgent need to improve the structural design of machining fixtures to enhance their flexibility and positioning accuracy. Utility Model Content

[0007] To address the problems existing in the prior art, this utility model provides a gantry fixture for the loading port of a translational sorting machine used for semiconductor packaging.

[0008] This utility model is implemented as follows: a trolley fixture for the loading port of a translational sorting machine for semiconductor packaging includes a trolley seat, fixed frames are respectively provided on both sides of the trolley seat, a track is provided on the base plate of the fixed frame, a first slider is provided on the track, and the trolley seat is slidably connected to the right fixed frame through the first slider.

[0009] The cylinder is connected to the second slider via a universal joint. The second slider is located on the slide rail of the left fixed frame. The second slider is connected to the lower end of the crane rocker arm, and the upper end of the crane rocker arm is connected to the crane seat.

[0010] Furthermore, the crane seat and the mounting bracket are fixed to each other with screws.

[0011] Furthermore, limit blocks are provided at both ends of the fixing frame.

[0012] Furthermore, a rocker arm limiting block is provided at the lower end of the crane rocker arm.

[0013] Furthermore, the rocker arm limiting block is a fan-shaped slide rail limiting structure.

[0014] This invention designs a traveling fixture with a slider guide structure and a flexible cylinder drive, effectively adapting to the loading requirements of DIP (Dual In-line Package) and SOP (Small Outline Package) semiconductor packages on a translational sorting machine. The use of track guidance and translational slider support ensures the straightness and low friction of the traveling fixture during lateral movement, significantly reducing loading errors caused by movement deviation or jamming, and improving the overall transmission accuracy and consistency of the equipment. It is particularly suitable for high-cycle sorting scenarios.

[0015] By introducing a universal joint structure and cylinder connection method, this invention can effectively absorb minor positional deviations caused by installation errors, thermal expansion and contraction, or load fluctuations, achieving multi-degree-of-freedom flexible compensation and avoiding the accumulation of internal stress caused by rigid connections. Combined with the collaborative control mechanism of the crane rocker arm and limit block, it ensures excellent dynamic response performance of the fixture during high-speed start-stop and reversing processes, further improving the stability of picking and placing at the sorting station and the accuracy of material feeding, while reducing the rate of malfunctions.

[0016] To address the demands of semiconductor packaging sorting lines where workpiece size and quality vary significantly, this invention features a screw-adjustable connection structure, enabling rapid switching between different carrier specifications. The limit block protection design not only prevents damage from overtravel impacts but also stabilizes the movement path and suppresses cumulative displacement errors, thereby enhancing the equipment's adaptability to complex load conditions and significantly improving the production line's continuous stable operation time and overall yield.

[0017] In summary, this invention, while satisfying compatibility with various semiconductor packaging forms such as DIP / SOP, significantly improves the equipment's output capacity and product parameter detection accuracy through high-precision sliding guidance, flexible drive compensation, and limit protection mechanisms. At the same time, it reduces maintenance needs and downtime losses caused by equipment failure or instability, thereby reducing overall operation and maintenance costs and improving the economy and reliability of the intelligent sorting system. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the overhead crane fixture for the loading port of a translational sorting machine for semiconductor packaging, provided in an embodiment of this utility model.

[0019] Figure 2 This is a structural diagram of the limiting block provided in an embodiment of the present utility model;

[0020] Figure 3 This is a structural diagram of the rocker arm limiting block provided in an embodiment of the present utility model;

[0021] In the diagram: 1. Crane seat; 2. Fixing frame; 3. Rail; 4. Slider; 5. Cylinder; 6. Universal joint; 7. Crane rocker arm; 8. Rocker arm limit block; 9. Limit block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0023] like Figure 1 As shown, this utility model embodiment provides a trolley fixture for the loading port of a translational sorting machine for semiconductor packaging, which is used in conjunction with a track and a pick-and-place arm. It includes a trolley seat 1, with fixed frames 2 respectively provided on both sides of the trolley seat 1. A track 3 is provided on the bottom plate of the fixed frame 2, and a first slider is provided on the track 3 of the right fixed frame. The trolley seat 1 is slidably connected to the right fixed frame through the first slider.

[0024] The cylinder 5 is connected to the second slider via the universal joint 6. The second slider is located on the track 3 of the left fixed frame. The second slider is connected to the lower end of the crane rocker arm 7. The other end of the crane rocker arm 7 is connected to the crane seat 1.

[0025] The crane seat 1 and the mounting bracket 2 are fixed to each other by screws.

[0026] Limiting blocks 9 are provided at both ends of the fixing frame 2.

[0027] A rocker arm limit block 8 is provided at the lower end of the crane rocker arm 7.

[0028] The rocker arm limiting block 8 is a fan-shaped slide rail limiting structure, and the crane rocker arm 7 moves in the slide rail limiting position under the induction of the cylinder 5.

[0029] In this embodiment of the invention, the traveling fixture primarily achieves its lateral sliding function through the fixed frames 2 on both sides of the traveling seat 1 and their bottom rails 3. The bottom of the traveling seat 1 is slidably connected to the rail 3 of the right fixed frame 2 via a first slider. Guided by the rail 3, it can move smoothly along a fixed direction, ensuring precise positioning of the semiconductor packaging workpiece at the loading port. The screw fixing structure is used to lock the traveling seat 1 and the fixed frame 2 relative to each other when needed, improving the overall stability of the equipment and preventing positional displacement during high-speed operation.

[0030] To achieve a higher degree of freedom in motion compensation design, a second slider is installed on the track 3 of the left fixed frame 2. The second slider is connected to the cylinder 5 via a universal joint 6. The universal joint 6 can provide multi-directional angle compensation, ensuring that the cylinder 5 is not affected by guide deviation during the pushing and pulling process, thus improving the smoothness of the motion transmission path. The lower end of the second slider is connected to the crane rocker arm 7. The crane rocker arm 7, as a power transmission component, is connected to the slider 4 at one end and to the crane seat 1 at the other end. Driven by the cylinder 5, the crane seat 1 achieves translational movement, while also possessing a certain degree of resistance to lateral interference.

[0031] Regarding motion limit control, limit blocks 9 are respectively installed at both ends of the fixed frame 2. The limit blocks 9 limit the maximum stroke of the slider 4 by physical blocking, preventing the crane seat 1 from overtravel due to abnormal control system or misoperation, thus ensuring the safety and structural integrity of the equipment. In addition, a rocker arm limit block 8 is also installed at the lower end of the crane rocker arm 7 to precisely constrain the range of motion of the crane rocker arm 7 driven by the cylinder 5, avoiding the cumulative error of the translation path of the crane seat 1 due to the deviation of the crane rocker arm 7, and further improving the consistency and repeatability of the loading port positioning.

[0032] This invention achieves high-precision translational control of the loading port trolley fixture of a semiconductor packaging sorting machine through a rationally designed multi-cooperative mechanism, including sliding track 3, driving cylinder 5, universal compensation, and limit protection. In particular, the combination of guiding slider 4 and protection limit block 9 effectively improves operational stability and reliability, meeting the stringent requirements of high-speed, high-precision semiconductor packaging equipment for positioning accuracy and dynamic response capabilities at the loading station. Example

[0033] In a semiconductor wafer-level packaging sorting machine loading system, the traveling fixture provided by this invention is used to achieve automatic workpiece conveying. Specifically, the traveling fixture 1 is mounted on the track 3 of the right-side fixed frame 2 via a first slider, and connected to the cylinder 5 on the left side via a second slider. A universal joint 6 is provided at the end of the cylinder 5 to compensate for installation errors and lateral offset. By controlling the extension and retraction stroke of the cylinder 5, the traveling fixture 1 is driven to move smoothly along the track 3, achieving precise alignment of the semiconductor wafer box at the loading port position and meeting the requirements of high-speed sorting.

[0034] To ensure safety during high-speed translation, limit blocks 9 are installed at both ends of the fixed frame 2 to limit the maximum stroke of the traveling seat 1 and prevent the cylinder 5 from over-stroke and causing structural damage. At the same time, a rocker arm limit block 8 is added below the traveling rocker arm 7 to control the swing angle of the traveling rocker arm 7 through physical stops, further suppressing the vibration and cumulative error of the mechanism under high-frequency action, thereby effectively improving the stability and service life of the equipment. Example

[0035] In an automated production line for sorting power device packaging before testing, this utility model's overhead crane fixture is used as the material box handling mechanism. The system consists of a double fixed frame 2 and a through-type track 3. One end of the overhead crane seat 1 is fixed to a first slider connected to the right track 3, and the other end is connected to a cylinder 5 via a second slider. The cylinder 5 is flexibly connected to the overhead crane rocker arm 7 via a universal joint 6, achieving linear sliding with low frictional resistance. The movement of the cylinder 5 is controlled by a PLC, enabling precise switching of the material box from the buffer area to the pre-testing positioning area.

[0036] To address load variations caused by different sized material boxes, screws are used for assisted positioning and locking between the crane seat 1 and the fixed frame 2. The locking or releasing state can be adjusted as needed to enhance the equipment's flexibility and adaptability. The dual limit protection design of the limit blocks 9 at both ends of the fixed frame 2 and the limit blocks 8 of the crane rocker arm 7 effectively prevents overload impacts and stroke deviations under different loads and dynamic operating conditions, thereby ensuring the accuracy and reliability of the system during continuous operation.

[0037] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any modifications, equivalent substitutions and improvements made by those skilled in the art within the technical scope disclosed in this utility model, and within the spirit and principles of this utility model, should be included within the protection scope of this utility model.

Claims

1. A gantry crane fixture for the loading port of a translational sorting machine for semiconductor packaging, characterized in that, The system includes a crane seat, with fixed frames on both sides of the crane seat. A rail is provided on the base plate of the fixed frame, and a first slider is provided on the rail. The crane seat is slidably connected to the right fixed frame through the first slider. The cylinder is connected to the second slider via a universal joint. The second slider is located on the slide rail of the left fixed frame. The second slider is connected to the lower end of the crane rocker arm, and the upper end of the crane rocker arm is connected to the crane seat.

2. The gantry crane fixture for the loading port of a translational sorting machine for semiconductor packaging as described in claim 1, characterized in that, The crane seat and the mounting bracket are fixed to each other with screws.

3. The gantry crane fixture for the loading port of a translational sorting machine for semiconductor packaging as described in claim 1, characterized in that, Limiting blocks are provided at both ends of the fixing frame.

4. The gantry crane fixture for the loading port of a translational sorting machine for semiconductor packaging as described in claim 1, characterized in that, A rocker arm limit block is provided at the lower end of the crane rocker arm.

5. The gantry crane fixture for the loading port of a translational sorting machine for semiconductor packaging as described in claim 4, characterized in that, The rocker arm limiting block is a fan-shaped slide rail limiting structure.

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