The flipping feeding mechanism of the high-density integrated circuit lead frame loading and unloading equipment

Abstract

This utility model relates to the technical field of lead frame loading and unloading equipment, and more particularly to a flipping loading mechanism for high-density integrated circuit lead frame loading and unloading equipment. It includes a support platform and a loading robot. The loading robot includes a lifting cylinder and a flipping module. A support plate is mounted on the end of the telescopic rod of the lifting cylinder. A movable seat is laterally movably mounted on the support plate. A rotating shaft is rotatably mounted on the movable seat, and the rotating shaft is equipped with several clamping claws arranged in an array along its axial direction. A fifth lead screw with its axis aligned with the moving direction of the movable seat is rotatably mounted on the support plate. The fifth lead screw is threadedly connected to the movable seat. Driving the fifth lead screw to rotate, in conjunction with the threaded connection between the fifth lead screw and the movable seat, controls the lateral movement of the movable seat on the support plate, causing the clamping claws to move laterally, thereby adjusting the position of the clamping claws to accommodate lead frames of different sizes.

Description

Technical Field

[0001] This utility model relates to the technical field of lead frame loading and unloading equipment, and in particular to a flipping loading mechanism for high-density integrated circuit lead frame loading and unloading equipment. Background Technology

[0002] In the manufacturing process of high-density integrated circuits, the lead frame, as a key carrier connecting the chip to external circuits, directly impacts the overall quality of the integrated circuit through its processing accuracy and production efficiency. The lead frame loading and unloading process is a crucial link in the production flow, and its level of automation and adaptability directly affect the continuous and stable operation of the production line. Among these processes, the flipping loading mechanism plays a vital role in flipping the horizontally lying lead frames to an upright position and accurately conveying them to subsequent processing stations (such as steel strip conveyors).

[0003] In the prior art, various automated devices have emerged for flipping and loading lead frames. For example, the patent number CN202420585036.X, "Flipping and Transfer Device for Electroplating Production Line of High-Density Integrated Circuit Lead Frames," discloses a technical solution that uses a robotic arm to grab the lead frame and flip it for loading. Its basic working principle is that after the lead frame is transported to the designated position by the conveyor module, the lead frame is clamped by the clamping claw and the support structure. Then, the flipping drive mechanism drives the clamping claw to flip, realizing the conversion from a flat to an upright posture, and finally loading the lead frame onto the steel belt of the steel belt conveyor mechanism.

[0004] However, existing flip-feeding mechanisms have significant limitations in practical applications: the clamping claws are typically fixed in position, and their lateral spacing and relative positions cannot be adjusted according to the size of the lead frame. Because high-density integrated circuit lead frames come in various specifications, with differences in length and width between different models, the fixed-position clamping claws are difficult to adapt to the gripping requirements of new lead frames when a different size needs to be replaced. Forcing their use may lead to clamping position deviations. Therefore, this paper provides a flip-feeding mechanism for high-density integrated circuit lead frame loading and unloading equipment to solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a flipping feeding mechanism for a high-density integrated circuit lead frame loading and unloading device, addressing the shortcomings of existing technologies and solving the technical problem that the position of the clamping claws in the existing flipping feeding mechanism cannot be adjusted.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] The flipping and loading mechanism of the high-density integrated circuit lead frame loading and unloading equipment includes a support platform, a support frame and a conveying module for lateral conveying of the lead frame, a steel belt conveying mechanism for conveying the vertical lead frame, and a loading robot positioned above the conveying module for flipping and loading the lead frames placed at the end of the conveying module one by one to the steel belt conveying mechanism.

[0008] The loading robot includes a lifting cylinder with its telescopic rod facing downwards and a tilting module for controlling the tilting of the lifting cylinder. A support plate is installed at the end of the telescopic rod of the lifting cylinder. A movable seat is movably mounted on the support plate. A rotating shaft with its axis arranged laterally and parallel to the conveying direction of the conveying module is rotatably mounted on the movable seat. The rotating shaft is equipped with several clamping claws arranged in an array along its axis. After the rotating shaft drives the clamping claws to rotate, the clamping claws cooperate with the bottom of the support plate to clamp the lead frame. A fifth lead screw with its axis aligned with the movement direction of the movable seat is rotatably mounted on the support plate. The fifth lead screw is threadedly connected to the movable seat.

[0009] The beneficial effects of this utility model are as follows: the stacked lead frames are transported piece by piece to the beginning of the conveying module. The conveying module is then operated to transport the lead frames laterally. After being transported to the designated position at the end, the lead frames are aligned with the loading robot and then the loading robot is operated to load the lead frames at the designated position onto the steel belt on the steel belt conveyor by flipping them over (from a lying position to an upright position). The steel belt conveyor then transports the long steel belt horizontally.

[0010] After the lead frame is conveyed to the end of the conveying module, the lifting electric cylinder is first activated to control the support plate to move downwards, so that the bottom of the support plate contacts the lead frame. Then, the drive shaft rotates, and the shaft drives several clamping claws to rotate and cooperate with the bottom of the support plate to clamp the lead frame. After clamping, the support plate is controlled to return to its original position. The flipping module controls the lifting electric cylinder to flip, so that the clamped lead frame is flipped upwards by 90°. At this time, the lead frame is in an upright position and is clamped by the steel belt conveyor mechanism. The reciprocating motion flips the lead frame piece by piece onto the steel belt, realizing automated feeding and improving the feeding efficiency of the lead frame.

[0011] In addition, when it is necessary to adjust the position of the clamping claws, the fifth lead screw is driven to rotate. With the cooperation of the threaded connection between the fifth lead screw and the movable seat, the movable seat is controlled to move laterally on the support plate, thereby moving several clamping claws laterally together. This allows the position of the clamping claws to be adjusted. Adjusting the position of the clamping claws can accommodate lead frames of different sizes, thus improving the adaptability of this flipping feeding mechanism. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the conveying module of this utility model.

[0014] Figure 3 This utility model Figure 2 Enlarged view of part A in the image.

[0015] Figure 4 This is a partial structural schematic diagram of the conveying module of this utility model.

[0016] Figure 5 This is a schematic diagram of the structure of the feeding robot of this utility model.

[0017] Figure 6 This is a partial structural diagram of the feeding robot of this utility model.

[0018] Figure 7 This is a schematic diagram of the structure of the adjustment module of this utility model.

[0019] The reference numerals in the figures include:

[0020] 5. Support platform; 8. Conveying module; 81. Fixing plate; 82. Conveying roller; 83. Transmission module; 84. Drive motor; 85. Guide plate; 86. Fourth lead screw; 87. Second drive component; 88. Material gripping station; 89. Slide rail; 810. Slider; 811. Stop block; 812. Second control component; 813. Third cylinder; 814. Connecting rod; 815. Alignment and pushing component; 816. Clearance through hole;

[0021] 12. Support frame;

[0022] 13. Steel belt conveyor mechanism;

[0023] 14. Loading robot; 141. Follower guide rod; 142. Follower plate; 143. Follower drive module; 144. Tilting frame; 145. Tilting drive module; 146. Lifting cylinder; 147. Support plate; 148. Movable seat; 149. Rotating shaft; 1410. Clamping claw; 1411. Clamping drive module; 1412. Clamping block; 1413. Soft pad; 1414. Fifth lead screw; 1415. Connecting joint; 1416. Connecting shaft; 1417. Splicing part;

[0024] 15. Adjustment module; 151. Mounting plate; 152. Fine-tuning plate; 153. Linear drive module; 154. Mounting base; 155. Rotating rod; 156. Connecting groove; 157. Splicing groove; 158. Bevel; 159. Servo motor; 1510. Buffer limit part. Detailed Implementation

[0025] The following description, in conjunction with the accompanying drawings, details the flipping and loading mechanism of the high-density integrated circuit lead frame loading and unloading equipment of this utility model.

[0026] like Figure 1 As shown, an embodiment of the flipping loading mechanism of the high-density integrated circuit lead frame loading and unloading equipment of this utility model includes a support platform 5, a support frame 12, and a conveying module 8 for lateral conveying of the lead frames. The support frame 12 is equipped with a steel strip conveying mechanism 13 for conveying the vertically positioned lead frames, and a loading robot 14 is also installed above the conveying module 8 for flipping and loading the lead frames placed at the end of the conveying module 8 piece by piece onto the steel strip conveying mechanism 13. The stacked lead frames are transported piece by piece to the beginning of the conveying module 8. The conveying module 8 is then operated to laterally convey the lead frames. After being conveyed to the designated position at its end, the loading robot 14 is aligned with the module and then operated to flip the lead frames at the designated position onto the steel strip on the steel strip conveying mechanism 13. The steel strip conveying mechanism 13 horizontally conveys the long strip of steel. The above-mentioned feeding method and the specific structure of the steel belt conveyor 13 are all existing technologies. For details of the specific structure, please refer to the flipping and transferring device of the high-density integrated circuit lead frame electroplating production line with patent number CN202420585036.X. The existing flipping and transferring device of the high-density integrated circuit lead frame electroplating production line discloses the flipping feeding of the lead frame and the horizontal conveying of the steel belt, which will not be described in detail here.

[0027] like Figure 2-4 As shown, the conveying module 8 includes a pair of side-by-side fixed plates 81 arranged laterally along its length. A plurality of conveying rollers 82 for conveying the lead frame are rotatably mounted between the side-by-side fixed plates 81. The conveying rollers 82 are arranged in an array along the length of the fixed plates 81. The fixed plates 81 are equipped with a transmission module 83 for synchronously rotating the conveying rollers 82 in the same direction, and a drive motor 84 for controlling the operation of the transmission module 83 to drive the rotation of the conveying rollers 82. The transmission module 83 is existing technology and can be a combination of sprockets and chains, or a combination of transmission gears and transmission belts, which will not be elaborated here. After the drive motor 84 controls the operation of the transmission module 83, the transmission module 83 drives the conveying rollers 82 to rotate synchronously in the same direction. After the lead frame pieces are transported onto the conveying rollers 82 one by one, the lead frame is conveyed to a designated position at the end of the fixed plate 81.

[0028] A guide plate 85 is provided between the side-by-side fixed plates 81 to guide the lead frame during the conveying process, ensuring that the lead frame is always conveyed in the same direction and preventing deviation. The guide plate 85 can move laterally along the axis of the conveying roller 82 on the fixed plate 81. A fourth lead screw 86, parallel in length to the axis of the conveying roller 82, is rotatably mounted on the fixed plate 81. The fourth lead screw 86 is threadedly connected to the guide plate 85. The support platform 5 is equipped with a second drive component 87 for driving the fourth lead screw 86 to rotate. After the second drive component 87 is activated, the fourth lead screw 86 is driven to rotate. With the threaded engagement between the fourth lead screw 86 and the guide plate 85, the position of the guide plate 85 between the side-by-side fixed plates 81 can be controlled to guide lead frames of different sizes.

[0029] The end of the fixed plate 81 is a material gripping station 88, which is located directly below the loading robot 14. After the conveying roller 82 conveys the lead frame to the material gripping station 88, the loading robot 14 flips the lead frame piece by piece and loads it onto the steel belt of the steel belt conveyor mechanism 13. In order to ensure that the lead frame is accurately conveyed to the material gripping station 88, the fixed plate 81 is provided with a slide rail 89 whose length direction is parallel to the conveying direction of the lead frame. A slider 810 is slidably provided on the slide rail 89, and a stop block 811 is installed on the slider 810 to stop the lead frame during the conveying process to the material gripping station 88. The fixed plate 81 is also provided with a second control component 812 for controlling the lateral sliding of the slider 810 on the slide rail 89. The lead frame is conveyed by the conveying roller 82. After being conveyed to the end of the fixed plate 81, it is blocked by the stop block 811, preventing further conveying. At this point, the lead frame is precisely positioned at the material handling station 88. The second control unit 812 has an existing structure. By operating the second control unit 812, the slider 810 is controlled to slide laterally on the slide rail 89, thereby adjusting the position of the stop block 811 to accommodate lead frames of different sizes, and precisely blocking lead frames of different sizes at the material handling station 88.

[0030] Additionally, a third cylinder 813 is installed at the end of the guide plate 85, positioned beside the gripping station 88. The telescopic rod of the third cylinder 813 is arranged laterally and faces the gripping station 88. A connecting rod 814 is installed on the telescopic rod of the third cylinder 813, with its length direction parallel to the conveying direction of the lead frame. The connecting rod 814 is equipped with several aligning pushers 815 for pushing the lead frame at the gripping station 88 to the correct position. After the stop block 811 blocks the lead frame to the gripping station 88, the third cylinder 813 is activated, and the telescopic rod extends to push the lead frame at the gripping station 88 to the correct position via the aligning pushers 815. This facilitates precise gripping of the lead frame by the loading robot, improving the accuracy of subsequent loading.

[0031] like Figure 5-6As shown, the loading robot 14 includes a follower guide rod 141 whose length direction is parallel to the conveying direction of the conveying module 8, a follower plate 142 slidably mounted on the follower guide rod 141, a follower drive module 143 for driving the follower plate 142 to reciprocate, a flipping frame 144 rotatably mounted on the follower plate 142, and a flipping drive module 145 for driving the flipping frame 144 to rotate. The axis of rotation of the flipping frame 144 is arranged laterally and is parallel to the conveying direction of the conveying module 8. The flipping frame 144 is equipped with a lifting cylinder 146 with the telescopic rod arranged downwards, and a support plate 147 is installed on the end of the telescopic rod of the lifting cylinder 146. After the lifting cylinder 146 is operated, the support plate 147 can be controlled to move up and down. When the flipping drive module 145 drives the flipping frame 144 to rotate, it can rotate and flip the support plate 147 around the laterally arranged axis.

[0032] Furthermore, the support plate 147 is provided with a movable seat 148, and the movable seat 148 is rotatably provided with a rotating shaft 149 whose axis is arranged laterally and parallel to the conveying direction of the conveying roller 82. The rotating shaft 149 is provided with a plurality of clamping claws 1410 arranged in an equidistant array along its axial direction. After the rotating shaft 149 drives the plurality of clamping claws 1410 to rotate, the clamping claws 1410 cooperate with the bottom of the support plate 147 to clamp the lead frame. The clamping claws 1410 are L-shaped, and the movable seat 148 is equipped with a clamping drive module 1411 for driving the rotating shaft 149 to rotate. The clamping drive module 1411 drives the clamping claws 1410 to open and close. After the lead frame is conveyed to the gripping station 88, the lifting cylinder 146 is first activated to control the support plate 147 to move downward, so that the bottom of the support plate 147 contacts the lead frame. Then, the clamping drive module 1411 drives the rotating shaft 149 to rotate. The rotating shaft 149 drives several clamping claws 1410 to rotate and cooperate with the bottom of the support plate 147 to clamp the lead frame. After clamping, the support plate 1410 is controlled to open and close. 47. Reset upwards, the flip drive module 145 drives the flip frame 144 to rotate, so as to flip the clamped lead frame upwards by 90°. At this time, the lead frame is in an upright position and is clamped by the steel strip conveying mechanism 13. During this process, the follower drive module 143 drives the follower plate 142 to move laterally so that the clamping claw 1410 moves synchronously with the steel strip conveyed by the steel strip conveying mechanism 13, so as to avoid the relative movement between the clamping process of the steel strip conveying mechanism 13 and the lead frame, which would cause damage to the lead frame.

[0033] The fixed plate 81 is provided with a clearance through hole 816 for the clamping claw 1410 to pass through. The clamping claw 1410 can pass through the clearance through hole 816 on the fixed plate 81 and directly clamp onto the conveying roller 82. There is a certain gap between adjacent conveying rollers 82 to avoid interference between the clamping claw 1410 and the conveying roller 82, thereby improving the material handling efficiency. A clamping block 1412 is provided at the bottom of the support plate 147 for cooperating with the clamping claw 1410. A soft pad 1413 is provided on the bottom surface of the clamping block 1412 that contacts the lead frame. The soft pad 1413 is provided to protect the lead frame and prevent it from being damaged.

[0034] In this embodiment, the movable seat 148 is laterally movably mounted on the support plate 147, and the direction of movement of the movable seat 148 is parallel to the axis of the conveying roller 82. When the movable seat 148 moves laterally, it moves laterally along with the clamping claw 1410, thereby adjusting the position of the clamping claw 1410 to accommodate lead frames of different sizes. In order to control the lateral movement of the movable seat 148, the support plate 147 is rotatably provided with a fifth lead screw 1414 whose axis is consistent with the direction of movement of the movable seat 148. The fifth lead screw 1414 is threadedly connected to the movable seat 148, and an adjustment module 15 is provided on the side of the support frame 12, which is connected to the fifth lead screw 1414 after operation and drives its rotation. The adjustment module 15 is set separately from the fifth lead screw 1414. When it is necessary to adjust the position of the clamping jaw 1410, the adjustment module 15 is operated and connected to the fifth lead screw 1414. Then, the fifth lead screw 1414 is driven to rotate. With the cooperation of the threaded connection between the fifth lead screw 1414 and the movable seat 148, the position of the clamping jaw 1410 can be adjusted. The specific adjustment method is described in detail below.

[0035] like Figure 6-7 As shown, the adjustment module 15 includes a mounting plate 151 mounted on the support platform 5. A fine-tuning plate 152 is laterally slidable on the mounting plate 151, and the sliding direction of the fine-tuning plate 152 is perpendicular to the axis of the fifth lead screw 1414. A linear drive module 153 is mounted on the fine-tuning plate 152, and a mounting base 154 is mounted on the actuator end of the linear drive module 153. After the linear drive module 153 is operated, the mounting base 154 can be controlled to move towards or away from the fifth lead screw 1414. A rotating rod 155 is rotatably mounted on the mounting base 154, and the axis of the rotating rod 155 is consistent with the direction of movement of the mounting base 154. The mounting base 154 is also equipped with a servo motor 159 for driving the rotating rod 155 to rotate.

[0036] The end of the rotating rod 155 away from the servo motor 159 is aligned with the fifth lead screw 1414. The support plate 147 has a connecting port 1415 for the end of the rotating rod 155 to be inserted. The end of the fifth lead screw 1414 is provided with a connecting shaft 1416 placed in the connecting port 1415. After the connecting shaft 1416 is driven to rotate, the fifth lead screw 1414 can be driven to rotate together. The end of the rotating rod 155 that is inserted into the connector 1415 is formed with a connecting groove 156 for the connecting shaft 1416 to be inserted. After the end of the rotating rod 155 is inserted into the connector 1415, the connecting shaft 1416 is inserted into the connecting groove 156. In addition, a splicing part 1417 is provided on the periphery of the connecting shaft 1416, and a splicing groove 157 for accommodating the splicing part 1417 is formed at the end of the rotating rod 155. When the connecting shaft 1416 is inserted into the connecting groove 156, the splicing part 1417 is placed in the splicing groove 157, thereby realizing the splicing of the rotating rod 155 and the connecting shaft 1416. When the position of the clamping jaw 1410 needs to be adjusted, the lifting cylinder 146 stops operating, so that the support plate 147 is in its initial position and remains stationary. At the same time, the fifth lead screw 1414 and the rotating rod 155 are coaxially arranged, and the linear drive module 153 is operated to control the mounting base 154 to move towards the clamping jaw 1410, thereby moving the rotating rod 155 towards the fifth lead screw 1414, so that the end of the rotating rod 155 is inserted into the connecting port 1415, and the connecting shaft 1416 is inserted into the connecting groove 156, splicing part 1 417 is placed inside the splicing slot 157; after the servo motor 159 drives the rotating rod 155 to rotate, under the action of the splicing part 1417 being placed inside the splicing slot 157, the connecting shaft 1416 can be driven to rotate, thereby driving the rotating rod 155 to rotate together, so as to adjust the position of the clamping claw 1410; after the adjustment is completed, the linear drive module 153 controls the mounting base 154 to reset in the direction away from the clamping claw 1410, so as to make way for the clamping claw 1410 and prevent the clamping claw 1410 from being blocked by the rotating rod 155 when flipping the lead frame for feeding.

[0037] Both the opening of the connecting groove 156 and the opening of the splicing groove 157 are formed with bevels 158. Under the action of the bevels 158, when the end of the rotating rod 155 is inserted into the connecting port 1415, the connecting shaft 1416 can be inserted into the connecting groove 156 more accurately, and the splicing part 1417 can also be inserted into the splicing groove 157 accurately, thereby improving the efficiency of the transmission connection between the rotating rod 155 and the fifth lead screw 1414.

[0038] A buffer limiting part 1510 is installed at both ends of the transverse sliding trajectory of the fine adjustment plate 152. The fine adjustment plate 152 is placed between the two buffer limiting parts 1510. The buffer limiting part 1510 is a hydraulic buffer cylinder, and the buffer ends of the two buffer limiting parts 1510 face the fine adjustment plate 152 and press against the side of the fine adjustment plate 152. By laterally sliding the fine-tuning plate 152 onto the mounting plate 151, the position of the rotating rod 155 can be adaptively adjusted during the insertion of the end of the rotating rod 155 into the connecting port 1415. For example, even if there is a slight deviation in the position of the rotating rod 155, the end of the rotating rod 155 is still controlled to be inserted into the connecting port 1415. Under the guidance of the inclined side 158, the end of the rotating rod 155 is automatically inserted into the connecting port 1415. At the same time, the fine-tuning plate 152 slides laterally on the mounting plate 151 after being subjected to force to automatically align itself, achieving self-adaptation. The buffer end of the buffer limiting part 1510 is compressed. When the rotating rod 155 is separated from the connecting port 1415, under the action of the buffer limiting part 1510, its buffer end resets to push the fine-tuning plate 152 back to its initial position, so that the position of the fine-tuning plate 152 always remains consistent, avoiding the situation where the position of the clamping claw 1410 cannot be automatically adjusted.

[0039] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0040] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A flipping loading mechanism for a high-density integrated circuit lead frame loading and unloading equipment, comprising a support platform (5), the support platform (5) being equipped with a support frame (12) and a conveying module (8) for transverse conveying of the lead frame, the support frame (12) being equipped with a steel strip conveying mechanism (13) for conveying the lead frame in an upright position, and also equipped with a loading robot (14) positioned above the conveying module (8) and used to flip and load the lead frames placed at the end of the conveying module (8) piece by piece to the steel strip conveying mechanism (13); characterized in that The loading robot (14) includes a lifting cylinder (146) with its telescopic rod facing downwards and a tilting module for controlling the tilting of the lifting cylinder (146). A support plate (147) is mounted at the end of the telescopic rod of the lifting cylinder (146). A movable seat (148) is laterally movably mounted on the support plate (147). A rotating shaft (149) with its axis laterally arranged and parallel to the conveying direction of the conveying module (8) is rotatably mounted on the movable seat (148). (149) is provided with a number of clamping claws (1410) arranged in an array along its axial direction. After the rotating shaft (149) drives the clamping claws (1410) to rotate, the clamping claws (1410) cooperate with the bottom of the support plate (147) to clamp the lead frame. The support plate (147) is rotatably provided with a fifth lead screw (1414) whose axis is consistent with the direction of movement of the movable seat (148). The fifth lead screw (1414) is threadedly connected to the movable seat (148).

2. The flipping loading mechanism of the high-density integrated circuit lead frame loading and unloading equipment according to claim 1, characterized in that: The bottom of the support plate (147) is provided with a clamping block (1412) for cooperating with the clamping claw (1410), and the bottom surface of the clamping block (1412) in contact with the lead frame is provided with a soft pad (1413).

3. The turnover feeding mechanism of the high-density integrated circuit lead frame strip feeding and discharging apparatus according to claim 1, characterized in that: An adjustment module (15) is provided on the side of the support frame (12) to drive the fifth lead screw (1414) to rotate after operation; the adjustment module (15) includes a mounting plate (151) installed on the support platform (5), a fine adjustment plate (152) is slidably provided on the mounting plate (151), and the sliding direction of the fine adjustment plate (152) is perpendicular to the axis of the fifth lead screw (1414). The fine adjustment plate (152) is equipped with a linear drive module (153), and a mounting seat (154) is installed on the execution end of the linear drive module (153); a rotating rod (155) is rotatably provided on the mounting seat (154), and the axis of the rotating rod (155) is consistent with the movement direction of the mounting seat (154). The mounting seat (154) is also equipped with a servo motor (159) for driving the rotating rod (155) to rotate.

4. The turnover feeding mechanism of the high-density integrated circuit lead frame strip feeding and discharging apparatus according to claim 3, characterized in that: The support plate (147) has a connecting port (1415) for inserting the end of the rotating rod (155), and the end of the fifth lead screw (1414) is provided with a connecting shaft (1416) placed in the connecting port (1415); the end of the rotating rod (155) for inserting into the connecting port (1415) has a connecting groove (156) for inserting the connecting shaft (1416); a splicing part (1417) is provided on the periphery of the connecting shaft (1416), and the end of the rotating rod (155) has a splicing groove (157) for accommodating the splicing part (1417). When the connecting shaft (1416) is inserted into the connecting groove (156), the splicing part (1417) is placed in the splicing groove (157).

5. The flip loading mechanism of the high-density integrated circuit lead frame strip loading and unloading apparatus according to claim 4, characterized in that: Both the groove opening of the connecting groove (156) and the groove opening of the splicing groove (157) are formed with bevels (158); buffer limiting parts (1510) are installed at both ends of the transverse sliding trajectory of the fine adjustment plate (152), and the buffer ends of the buffer limiting parts (1510) on both sides face the fine adjustment plate (152) and abut against the side of the fine adjustment plate (152).

6. The flip loading mechanism of the high-density integrated circuit lead frame strip loading and unloading apparatus according to claim 1, characterized in that: The conveying module (8) includes a pair of side-by-side fixed plates (81) arranged laterally along the length direction. A plurality of conveying rollers (82) for conveying the lead frame are rotatably arranged between the side-by-side fixed plates (81). The plurality of conveying rollers (82) are arranged in an array along the length direction of the fixed plates (81). The fixed plates (81) are equipped with a transmission module (83) for causing the plurality of conveying rollers (82) to rotate synchronously in the same direction. A drive motor (84) is also equipped to control the operation of the transmission module (83) to drive the plurality of conveying rollers (82) to rotate.

7. The flip loading mechanism of the high-density integrated circuit lead frame strip loading and unloading apparatus according to claim 6, characterized in that: A guide plate (85) is provided between the fixed plates (81) arranged side by side to guide the lead frame during the conveying process; the guide plate (85) can move laterally on the fixed plate (81) along the axis of the conveying roller (82), and the fixed plate (81) is rotatably provided with a fourth lead screw (86) whose length direction is parallel to the axis of the conveying roller (82), the fourth lead screw (86) is threadedly connected to the guide plate (85), and the support platform (5) is equipped with a second driving component (87) for driving the fourth lead screw (86) to rotate.

8. The flip loading mechanism of the high-density integrated circuit lead frame strip loading and unloading apparatus according to claim 7, characterized in that: The end of the fixed plate (81) is a material gripping station (88); the fixed plate (81) is provided with a slide rail (89) whose length direction is parallel to the conveying direction of the lead frame, a slider (810) is slidably provided on the slide rail (89), and a stop block (811) is installed on the slider (810) for blocking the lead frame during the conveying process to the material gripping station (88). The fixed plate (81) is also provided with a second control component (812) for controlling the slider (810) to slide laterally on the slide rail (89).

9. The flip loading mechanism of the high-density integrated circuit lead frame strip loading and unloading apparatus according to claim 8, characterized in that: A third cylinder (813) is installed at the end of the guide plate (85) and placed next to the material gripping station (88). The telescopic rod of the third cylinder (813) is arranged laterally and faces the material gripping station (88). A connecting rod (814) is installed on the telescopic rod of the third cylinder (813) with its length direction parallel to the conveying direction of the lead frame. The connecting rod (814) is equipped with several alignment pushers (815) for pushing the lead frame at the material gripping station (88) to the alignment position.

10. The flip loading mechanism of the high-density integrated circuit lead frame strip feeding equipment according to claim 1, characterized in that: The flipping module includes a follower guide rod (141) whose length direction is parallel to the conveying direction of the conveying module (8), a follower plate (142) slidably mounted on the follower guide rod (141), a follower drive module (143) for driving the follower plate (142) to reciprocate, a flipping frame (144) rotatably mounted on the follower plate (142), and a flipping drive module (145) for driving the flipping frame (144) to rotate. The axis of rotation of the flipping frame (144) is arranged laterally and parallel to the conveying direction of the conveying module (8). A lifting electric cylinder (146) is installed on the flipping frame (144).

Images