Chip mounting apparatus based on non-powered track

Abstract

The utility model discloses a chip mounting equipment based on unpowered track, including two opposite settings unpowered track, one unpowered track is provided with transplanting mechanism, and the bottom of another unpowered track is provided with mounting seat, and is provided with positioning clamping mechanism on the mounting seat, and transplanting mechanism is used for driving the movement of base plate in unpowered track, and positioning clamping mechanism is used for blocking and fixed base plate, positioning clamping mechanism includes drive motor, blocking arm and press arm, and blocking arm and press arm set up in the mounting seat surface of unpowered track width direction both sides and all through second longitudinal slide rail connection, and first drive motor is connected with first double cam, and first double cam is contacted with blocking arm and press arm one end and drives lifting movement, and is provided with blocking piece on the other end of blocking arm, and is provided with press plate on the other end of press arm. The utility model discloses through the design of cam structure, and the compact structure can complete the process of blocking and pressing simultaneously, and is accurate and reliable.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor packaging technology, specifically to a chip mounting device based on a non-powered track. Background Technology

[0002] A SIP (System-in-Package) placement machine is a device that can separate, pick up, and solder chips from a wafer onto a PCB substrate, enabling miniaturization and high performance of electronic products.

[0003] In existing systems, both substrate positioning and fixing require mechanical assistance. After fixing the substrate at the mounting position, the chip is transferred onto the substrate and then soldered at high temperature. For substrate positioning, if only identification technology is used, a precise transfer mechanism is also needed, which greatly increases the manufacturing cost.

[0004] Therefore, the design employs a blocking plate structure extending between the conveyor tracks, which not only ensures positioning accuracy but also reduces manufacturing costs. Both the fixing and positioning mechanisms require drive components, which occupy equipment space. At the patch placement location, the equipment components take up a significant amount of space, necessitating effective space avoidance between the positioning and fixing mechanisms, making structural simplification imperative. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a chip mounting device based on a non-powered track. Through the design of the cam structure, the structure is compact and can complete the blocking and pressing processes accurately and reliably.

[0006] To solve the above-mentioned technical problems, this utility model provides a chip mounting device based on a non-powered track, including two non-powered tracks arranged opposite each other. One non-powered track is provided with a transfer mechanism, and the bottom of the other non-powered track is provided with a mounting base. The mounting base is provided with a positioning and clamping mechanism. The transfer mechanism is used to drive the substrate to move in the non-powered track, and the positioning and clamping mechanism is used to block and fix the substrate. The positioning and clamping mechanism includes a first drive motor, a blocking arm, and a lowering arm. The blocking arm and the lowering arm are disposed on the mounting base surfaces on both sides of the width direction of the unpowered track and are connected by a first longitudinal slide rail. The first drive motor is connected to a first double cam. The first double cam abuts against one end of the blocking arm and the lowering arm and drives them to move up and down. A blocking block is provided on the other end of the blocking arm, and a lowering plate is provided on the other end of the lowering arm.

[0007] Furthermore, a first tension spring is provided between the blocking arm and the mounting base, and between the lowering arm and the mounting base. A first abutting end is provided on the blocking arm and the mounting base respectively. The first tension spring pulls the blocking arm and the mounting base downward and causes the first abutting end to abut against the first double cam.

[0008] Furthermore, a first abutting wheel is provided on the first abutting end, and the first abutting wheel abuts against the first double cam.

[0009] Furthermore, the transplanting mechanism includes an upper clamping plate and a lower clamping plate, which are mounted on a sliding seat and connected by a second longitudinal slide rail. The upper clamping plate and the lower clamping plate are connected to a lifting drive assembly, which is connected to a belt drive assembly.

[0010] Furthermore, the lifting drive assembly includes a second drive motor, which is fixed on the sliding seat. The second drive motor is connected to a second double cam, which abuts against a second abutting end provided at one end of the upper and lower clamping plates. A second tension spring is also provided between the upper and lower clamping plates and the sliding seat. The second tension spring pulls the upper and lower clamping plates downward and causes the second abutting end to abut against the second double cam.

[0011] Furthermore, a second abutting wheel is provided on the second abutting end, and the second abutting wheel abuts against the second double cam.

[0012] Furthermore, the lower pressure plate is provided with positioning holes, and positioning posts are provided on the non-powered track corresponding to the positioning holes.

[0013] Furthermore, two non-powered tracks are set on the bottom frame, and the bottom frame is fixed to the support base by the second sliding track. A fixing cylinder is set on the support base, and a fixing pressure plate is set between the support base and the fixing cylinder. The top of the fixing pressure plate is fixedly connected to the bottom frame.

[0014] The beneficial effects of this utility model are: The blocking arm and the pressing arm are driven by a dual-cam structure to move up and down, achieving the functions of blocking and pressing. The dual cams can enable the blocking arm and the pressing arm to move asynchronously, thus achieving the effect of two functions with one drive power source, achieving the purpose of simplifying the structure.

[0015] The structural design of the blocking arm and the pressure arm can effectively fit the mounting base under the unpowered track, and the first longitudinal slide rail provides effective guidance and support, thereby further improving space utilization. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a top view schematic diagram of the positioning and clamping mechanism of this utility model; Figure 3 This is a schematic diagram of the first side structure of the positioning and clamping mechanism of this utility model; Figure 4 This is a schematic diagram of the second side structure of the positioning and clamping mechanism of this utility model; Figure 5 This is a schematic diagram of the transplanting mechanism of this utility model; Figure 6 This is a schematic diagram of the track positioning structure of this utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0018] Reference Figures 1 to 5 As shown, one embodiment of the chip mounting equipment based on unpowered tracks of this utility model includes two oppositely arranged unpowered tracks 1. Each unpowered track includes upper and lower limiting plates that cooperate to form a transverse groove structure. The transverse groove structures of the two unpowered tracks are arranged opposite each other, allowing the substrate to move only in the horizontal direction. One unpowered track is provided with a transfer mechanism 2, and the bottom of the other unpowered track is provided with a mounting base 3. The mounting base is provided with a positioning and clamping mechanism 4. The transfer mechanism is used to drive the substrate 5 to move in the unpowered track, and the positioning and clamping mechanism is used to block and fix the substrate. Specifically, the transfer mechanism clamps one side of the substrate and then drives the substrate to the mounting position. At this position, the positioning and clamping mechanism is used for precise positioning and then clamping to fix the position, thereby ensuring the accuracy of the mounting position.

[0019] The aforementioned positioning and clamping mechanism includes a first drive motor 6, a blocking arm 7, and a lowering arm 8. The blocking arm and the lowering arm are mounted on the mounting surfaces on both sides of the width direction of the unpowered track and are connected by a first longitudinal slide rail 9. The first drive motor is connected to a first double cam 10. The first double cam abuts against one end of the blocking arm and the lowering arm and drives them to move up and down. A blocking block 11 is provided on the other end of the blocking arm, and a lowering plate 12 is provided on the other end of the lowering arm. The first longitudinal slide rail is used to limit the movement direction of the blocking arm and the lower pressure arm. It can only move vertically. The two cams on the first double cam are driven by the drive motor to rotate. Different movement effects can be formed by the shape of the protrusions at different positions of the cams. For example, when the blocking block moves upward, it blocks the movement of the substrate, i.e., it performs precise positioning. At this time, the lower pressure arm does not move, and the lower pressure plate does not press the substrate. After the substrate abuts against the blocking block, the first double cam continues to rotate, so that the lower pressure plate presses the substrate. At this time, the blocking block can descend or not descend. After the patching is completed, the first cam continues to rotate, the blocking block is driven to descend by the blocking arm, and the lower pressure plate is driven to rise by the lower pressure arm, releasing the clamping and blocking. The transfer mechanism can clamp the substrate and continue to move. The shape of the cam can be customized according to the required stroke. This is existing technology and will not be described in detail.

[0020] Since the first double cam needs to keep the blocking arm and the pressing arm in constant contact with the cam surface to achieve the lifting effect during rotation, a first tension spring 13 is provided between the blocking arm and the mounting base, and between the pressing arm and the mounting base. A first abutting end 14 is provided on the blocking arm and the mounting base respectively. The first tension spring pulls the blocking arm and the mounting base downwards, causing the first abutting end to abut against the first double cam. The first tension spring can always pull the blocking arm and the pressing arm downwards, i.e., always keep them in contact with the surface of the first double cam. Furthermore, since the driving process involves surface contact, a first abutting wheel 15 is provided on the first abutting end. The first abutting wheel abuts against the first double cam, changing the friction method to rolling friction, reducing friction, and making the operation smoother.

[0021] The lower pressure plate is provided with positioning holes 26, and the corresponding non-powered track is provided with positioning posts 27, so that the lower pressure plate has a good guiding effect while clamping the substrate, resulting in a better clamping effect. The positioning posts also have the function of limiting the substrate and preventing the substrate from tilting in this width direction.

[0022] In general, when the substrate needs to be mounted, the positioning and clamping mechanism first moves the blocking arm upward, so that the blocking block extends in the direction of substrate movement. The transfer mechanism clamps the substrate and moves it, abutting against the blocking block to achieve accurate positioning. The substrate is blocked and cannot move further. At this time, the lower pressure arm moves downward, driving the lower pressure plate to clamp the substrate on the unpowered track. Then, the mounting process is carried out to solder the chip onto the substrate. After that, the blocking block moves downward to avoid the substrate moving, and the lower pressure plate moves upward to release the fixation on the substrate. Then, the transfer mechanism transfers the mounted substrate to the next station, and then continues to process the next substrate.

[0023] The aforementioned transplanting mechanism includes an upper clamping plate 16 and a lower clamping plate 17. The upper and lower clamping plates are mounted on a sliding seat 21 and connected by a second longitudinal slide rail 18. The upper and lower clamping plates are connected to a lifting drive assembly, which in turn is connected to a belt drive assembly 19. The sliding seat is driven by the belt drive assembly to move along the length of the corresponding unpowered track. By driving the upper and lower clamping plates to move relative to each other, the effect of clamping and releasing the substrate is achieved. The second longitudinal slide rail serves as a lifting guide, ensuring that the upper and lower clamping plates can only move relative to each other. While the belt drive assembly has low movement accuracy, its simple structure allows for long-distance movement; therefore, the aforementioned blocking block is used for blocking and positioning.

[0024] Specifically, the lifting drive assembly includes a second drive motor 20, which is fixed on the sliding seat and connected to a second double cam 22. The second double cam abuts against a second abutting end 23 located at one end of the upper and lower clamping plates. A second tension spring 24 is also provided between the upper and lower clamping plates and the sliding seat, pulling the upper and lower clamping plates downward and causing the second abutting end to abut against the second double cam. By aligning the cam structure protrusions on the second double cam, relative movement of the upper and lower clamping plates can be achieved during rotation. This is similar to the operating principle of the first double cam, both being existing technologies and will not be detailed here. The second tension spring is used to keep the upper and lower clamping plates in constant contact with the cam surface. Both the upper and lower clamping plates include an end for clamping the substrate and a body part connected to the second longitudinal slide rail. Through a C-shaped structure design, they are wrapped around the unpowered track, allowing the lifting drive assembly to be positioned on the side away from the substrate, effectively preventing the substrate from moving. The second abutting end is provided with a second abutting wheel 25, which abuts against the second double cam, changing the friction method to rolling friction.

[0025] Reference Figure 6As shown, this application also provides a mechanism for easily adjusting the track position. Two unpowered tracks are mounted on a bottom frame 28, which is fixed to a support base 30 via a second sliding track 29. A fixing cylinder 31 is mounted on the support base, and a fixing pressure plate 32 is positioned between the support base and the fixing cylinder. The top of the fixing pressure plate is fixedly connected to the bottom frame. The spacing between the two unpowered tracks can be adjusted to accommodate substrates of different sizes. During chip mounting, the substrate needs to match the chip mounting module in the equipment. Therefore, the design of the second sliding track allows the two unpowered tracks to slide synchronously on the second sliding track after the spacing is adjusted, adapting to the position of the chip mounting module. The extension of the fixing cylinder presses the fixing pressure plate firmly against the support base, preventing the bottom frame from moving. When position adjustment is needed, the fixing cylinder retracts, the fixing pressure plate is released, the bottom frame is moved, and after adjustment, the fixing cylinder extends again to press the fixing pressure plate firmly against the support base. Therefore, adjustment is convenient and reliable, requiring no screws for fastening, greatly reducing operational difficulty and improving machine adjustment efficiency.

[0026] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model.

Claims

1. A chip mounting device based on a non-powered track, characterized in that, It includes two opposing non-powered tracks, one of which is equipped with a transplanting mechanism, and the other is equipped with a mounting base at the bottom. The mounting base is equipped with a positioning and clamping mechanism. The transplanting mechanism is used to move the substrate in the non-powered track, and the positioning and clamping mechanism is used to block and fix the substrate. The positioning and clamping mechanism includes a first drive motor, a blocking arm, and a lowering arm. The blocking arm and the lowering arm are disposed on the mounting base surfaces on both sides of the width direction of the unpowered track and are connected by a first longitudinal slide rail. The first drive motor is connected to a first double cam. The first double cam abuts against one end of the blocking arm and the lowering arm and drives them to move up and down. A blocking block is provided on the other end of the blocking arm, and a lowering plate is provided on the other end of the lowering arm.

2. The chip mounting equipment based on a non-powered track as described in claim 1, characterized in that, A first tension spring is provided between the blocking arm and the mounting base, and between the lowering arm and the mounting base. A first abutting end is provided on the blocking arm and the mounting base respectively. The first tension spring pulls the blocking arm and the mounting base downward and causes the first abutting end to abut against the first double cam.

3. The chip mounting equipment based on a non-powered track as described in claim 2, characterized in that, The first abutting end is provided with a first abutting wheel, which abuts against the first double cam.

4. The chip mounting equipment based on a non-powered track as described in claim 1, characterized in that, The transplanting mechanism includes an upper clamping plate and a lower clamping plate, which are mounted on a sliding seat and connected by a second longitudinal slide rail. The upper clamping plate and the lower clamping plate are connected to a lifting drive assembly, which is connected to a belt drive assembly.

5. The chip mounting equipment based on a non-powered track as described in claim 4, characterized in that, The lifting drive assembly includes a second drive motor, which is fixed on the sliding seat. The second drive motor is connected to a second double cam. The second double cam abuts against a second abutting end provided at one end of the upper and lower clamping plates. A second tension spring is also provided between the upper and lower clamping plates and the sliding seat. The second tension spring pulls the upper and lower clamping plates downward and causes the second abutting end to abut against the second double cam.

6. The chip mounting equipment based on a non-powered track as described in claim 5, characterized in that, The second abutting end is provided with a second abutting wheel, which abuts against the second double cam.

7. The chip mounting equipment based on a non-powered track as described in claim 1, characterized in that, The lower pressure plate is provided with positioning holes, and the corresponding non-powered track is provided with positioning posts.

8. The chip mounting equipment based on a non-powered track as described in claim 1, characterized in that, Two non-powered tracks are set on the bottom frame, and the bottom frame is fixed to the support base by the second sliding track. A fixing cylinder is set on the support base, and a fixing pressure plate is set between the support base and the fixing cylinder. The top of the fixing pressure plate is fixedly connected to the bottom frame.

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