Stamping and receiving device for lead frame

Abstract

The invention discloses a lead frame stamping and receiving device, which relates to the technical field of lead frames and comprises a male die, and a pressing rod for pressing waste is slidably arranged in a cut-off block of the male die; the device further comprises a female die, a rotating shaft is symmetrically and rotationally arranged on the female die, a supporting plate and a reed which are distributed in parallel are arranged in the middle of the rotating shaft, a blocking piece used for blocking the reed is arranged on the female die, the rotating shaft drives the supporting plate and the reed to rotate, the long reed is blocked by the blocking piece and is bent and deformed, the supporting plate is in a horizontal state, and the reed is in a horizontal state. The male die continues to move, the cutting-off block cuts off the waste and brings the waste into the female die, at the moment, the pressing rod is unlocked, moves downwards relative to the cutting-off block and pushes the middle of the waste below the cutting-off block, so that the middle of the waste is separated from the cutting-off block and makes contact with the supporting plate to guide static electricity to the ground, and meanwhile the pressing rod synchronously abuts against the supporting plate downwards to further drive the reed to move; the reed and the blocking piece are staggered and inserted between the cutting-off block and the waste to prevent the waste from moving along with the cutting-off block.

Description

Technical Field

[0001] This invention relates to the field of lead frame technology, specifically to a lead frame stamping and receiving device. Background Technology

[0002] As is well known, lead frames are commonly used in the production of electronic devices and microelectronic products. They are key components connecting chips and other electronic parts, and are mostly made of high-quality copper alloys. Lead frames support the pins of electronic components, provide electrical connections, and protect the components from environmental influences. Lead frames also control the position and shape of the pins to ensure proper matching with external circuitry.

[0003] For example, the invention patent with application publication number CN104209409B, application publication date March 30, 2016, and titled "Leader Frame Stamping Die", includes a punch, a stripper plate located below the punch, and a die located below the stripper plate. The punch is provided with several positioning pins for positioning the round holes. The stripper plate has through holes for the positioning pins to pass through. The punch has several mounting grooves, and springs are provided in the mounting grooves. The lower end of the spring is connected to the upper end of the positioning pin, and the upper end of the spring is fixedly connected to the punch by a screw plug. The die has several clearance holes for avoiding the positioning pins. The first positioning pin is a tapered guide pin, and its lower end has a tapered positioning part that gradually increases in size from bottom to top. The diameter of the stamping round hole is larger than the minimum diameter of the positioning part and smaller than the maximum diameter of the positioning part. The other positioning pins are straight-insertion guide pins.

[0004] The shortcoming of the existing technology is that the lead frame needs to be cut off by punch and die during processing. However, static electricity is easily generated on the punch during high-speed stamping, especially when cutting off longer pieces of material. The contact area between the punch and the cut-off piece of material is large, and it is difficult to completely discharge the static electricity on the longer punch. This causes the longer piece of material to be cut off to be attracted by static electricity to the punch. When the punch moves upward, it will pull the cut-off part, causing it to protrude from the die, affecting subsequent work. Summary of the Invention

[0005] The purpose of this invention is to provide a lead frame stamping and receiving device to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lead frame stamping and receiving device, comprising a punch, wherein a pressure bar for pressing waste material is slidably disposed in the cutting block of the punch; It also includes a die, on which a rotating shaft is symmetrically rotatably mounted; a parallel-distributed support plate and a spring are disposed at the center of the rotating shaft; and a baffle plate is disposed on the die to block the spring, wherein: The two shafts rotate to bring the two pallets to a horizontal position and directly below the cutting block, which inserts into the die to cause the pressure bar to drop and compress the waste material against the pallets.

[0007] As a further description of the above technical solution: the punch is provided with a connecting rod extending into the die, and the connecting rod is provided with a friction block for driving the rotating shaft to rotate in one direction.

[0008] As a further description of the above technical solution: the die is movably provided with a filler block for filling the gap thereon, and the cutting block cooperates with the filler block to flatten the edge of the lead frame notch.

[0009] As a further description of the above technical solution: the die cavity is provided with a guide groove for guiding the movement of the filling block, the guide groove including an inclined part and a vertical part facing the cutting block.

[0010] As a further description of the above technical solution: a conveyor belt is provided on the die, and multiple positioning pieces for positioning the lead frame are movably arranged on the conveyor belt.

[0011] As a further description of the above technical solution: the drive roller of the conveyor belt is provided with a positioning disk, and the positioning disk is provided with an inner groove and an outer groove for limiting its rotation angle.

[0012] As a further description of the above technical solution: the curvature of the inner groove is half the curvature of the outer groove.

[0013] As a further description of the above technical solution: a slider is slidably disposed in the cavity mold, and the slider is provided with an insert block that is adapted to the inner groove and the outer groove.

[0014] As a further description of the above technical solution: the slider is provided with a positioning groove, and the punch moves back and forth in the vertical direction so that the depth of the insertion block into the positioning disk is adjustable.

[0015] As a further description of the above technical solution: a lever for connecting multiple filling blocks and having its end embedded in the slider is slidably disposed in the die, and a limiting groove for guiding the movement of the lever is disposed in the slider.

[0016] In the above technical solution, the lead frame stamping and receiving device provided by the present invention has the following beneficial effects: When the punch approaches the die, the rotating shaft drives the support plate and the spring to rotate, and during the rotation, the support plate does not contact the stop plate, while the longer spring is blocked by the stop plate and bends and deforms. At this time, the support plate is in a horizontal state and is directly facing the cutting block. The punch continues to move, the cutting block cuts off the waste material and brings it into the die. At this time, the pressure rod unlocks and moves down relative to the cutting block, pushing the middle part of the waste material below the cutting block, so that the middle part of the waste material is in contact with the cutting block. The cut block separates and contacts the pallet. The pallet can conduct static electricity to the ground through the rotating shaft, die, and frame, thereby reducing static electricity on the cut block. At the same time, the pressure rod pushes the pallet downward, causing the pallet to drive the rotating shaft to rotate, which in turn drives the spring to move. The spring bends further and is misaligned with the stop plate. The spring returns to its original shape and inserts between the cut block and the waste. Then the punch and the cut block move upward, and the spring blocks the waste, leaving the waste inside the die. Then the rotating shaft rotates downward under the pressure of the pallet, the spring, and the waste, releasing the waste. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the support block provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the bottom structure of the die provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the internal structure of the die provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the slider provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the conveyor belt structure provided in an embodiment of the present invention; Figure 7 for Figure 6 Enlarged view of point A in the middle; Figure 8 This is a schematic diagram of the structure of the filling block provided in an embodiment of the present invention; Figure 9 for Figure 8 Enlarged view at point B in the middle; Figure 10 This is a schematic diagram of the internal structure of the punch provided in an embodiment of the present invention; Figure 11 for Figure 10 Enlarged view at point C; Figure 12 This is a schematic diagram of the positioning disk provided in an embodiment of the present invention; Figure 13 This is a schematic diagram of the positioning groove provided in an embodiment of the present invention; Figure 14 A schematic cross-sectional view of the slider provided in an embodiment of the present invention; Figure 15 This is a schematic diagram of the lever provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Frame; 11. Punch; 111. Cutting block; 112. Pressure rod; 113. Movable frame; 114. Positioning pin; 115. Connecting rod; 116. Friction block; 117. Protrusion; 118. Push block; 12. Die; 121. Rotating shaft; 122. Support plate; 123. Spring; 124. Filling block; 125. Wedge block; 126. Guide block; 127. Guide groove; 128. Baffle; 129. Push rod; 13. Conveyor belt; 131. Positioning piece; 132. Positioning plate; 133. Inner groove; 134. Outer groove; 135. Slider; 136. Insertion block; 137. Limiting groove; 14. Positioning groove; 141. Inclined groove; 142. Vertical groove; 143. Reset groove; 144. Movable piece; 15. Support block. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Please see Figure 1-15 The present invention provides a technical solution: a lead frame stamping and receiving device, including a punch 11, wherein a pressure rod 112 for pressing waste material is slidably disposed in the cutting block 111 of the punch 11; It also includes a die 12, on which a rotating shaft 121 is symmetrically rotatably mounted. A parallel-distributed support plate 122 and a spring 123 are arranged in the middle of the rotating shaft 121. A baffle 128 for blocking the spring 123 is provided on the die 12. Wherein: The two rotating shafts 121 rotate to make the two pallets 122 horizontal and directly below the cutting block 111. The cutting block 111 is inserted into the die 12 to make the pressure bar 112 fall down and press the waste material against the pallet 122.

[0022] Specifically, it also includes a frame 1, a die 12 fixedly mounted on the frame 1, a punch 11 fixedly mounted on the output end of a hydraulic rod 112 on the frame 1, the bottom end of the pressure rod 112 being flush with the bottom surface of the cutting block 111, a cylindrical limiting block being provided on the pressure rod 112, a cavity for the limiting block to move being provided in the punch 11, a positioning post 114 extending into the interior of the die 12 being provided on the punch 11, a movable frame 113 being provided in the punch 11, a magnet being provided on the movable frame 113 for magnetic attraction with the limiting block, a support foot extending below the positioning post 114 being provided on the limiting block, a length ratio of the support plate 122 to the spring 123 being 1:1.15, a pair of rotating shafts 121 corresponding to one cutting block 111, and multiple cutting blocks 111 being provided on the punch 11.

[0023] Furthermore, as the punch 11 approaches the die 12, the rotating shaft 121 drives the support plate 122 and the spring 123 to rotate. During the rotation, the support plate 122 does not contact the stop plate 128, while the longer spring 123 is blocked by the stop plate 128 and bends. At this time, the support plate 122 is in a horizontal state and faces the cutting block 111. The punch 11 continues to move, and the cutting block 111 cuts off the waste material and brings it into the die 12. At this time, the pressure rod 112 unlocks and moves down relative to the cutting block 111, pushing the middle part of the waste material below the cutting block 111, so that the middle part of the waste material separates from the cutting block 111 and contacts the support plate 122. The support plate 122 can pass through the rotating shaft 121 and the die 12. The frame 1 conducts static electricity to the ground, thereby reducing static electricity on the cutting block 111. At the same time, the pressure rod 112 pushes the support plate 122 downward, causing the support plate 122 to drive the rotating shaft 121 to rotate, which in turn drives the spring 123 to move. The spring 123 bends further and is misaligned with the baffle 128. The spring 123 returns to its original shape and is inserted between the cutting block 111 and the waste, preventing the waste from being carried by the residual static electricity on the cutting block 111. Then, the punch 11 and the cutting block 111 move upward, and the spring 123 blocks the waste, leaving the waste inside the die 12. Then, the rotating shaft 121 rotates downward under the pressure of the support plate 122, the spring 123 and the waste, releasing the waste.

[0024] Furthermore, when the punch 11 moves to the lowest point, the positioning pin 114 moves into the die 12, and the support leg of the movable frame 113 is pushed by the die 12 to push the movable frame 113 upward. The magnet on the movable frame 113 separates from the limiting block, and the pressure rod 112 and the limiting block move downward under the action of gravity. During the upward movement of the punch 11, the support leg separates from the die 12, the movable frame 113 moves downward under the action of gravity, the magnet approaches the limiting block and re-attracts the limiting block, and the limiting block drives the pressure rod 112 to move upward relative to the punch 11, so that the pressure rod 112 retracts into the cutting block 111.

[0025] In another embodiment of the present invention, a connecting rod 115 extending into the die 12 is provided on the punch 11, and a friction block 116 for driving the rotating shaft 121 to rotate in one direction is provided on the connecting rod 115.

[0026] Specifically, the connecting rod 115 is located between two adjacent positioning posts 114, and the rotating shaft 121 is unidirectionally rotated (a ratchet is provided on the rotating shaft 121, and a pawl for limiting the ratchet to reverse is provided on the die 12) and installed in the die 12. The end of the rotating shaft 121 is provided with a rough part that matches the friction block 116, and a transmission gear is provided between two adjacent rotating shafts 121.

[0027] Furthermore, when the punch 11 moves downward from the highest point, the connecting rod 115 drives the friction block 116 to move downward. The friction block 116 pushes the rough part on the rotating shaft 121, causing the rotating shaft 121 to rotate. When the friction block 116 separates from the rotating shaft 121, the support plate 122 is in a horizontal state, and the longer spring 123 is blocked by the baffle 128 and bends and deforms. When the punch 11 moves to the highest point, the friction block 116 contacts and rubs against the rough part, but it cannot push the rotating shaft 121 to rotate in the opposite direction.

[0028] In actual operation, it was found that when the cutting block 111 cuts off a long piece of waste, the material near the notch of the lead frame is easily pulled and forms a downward protrusion. This protrusion causes the bottom of the lead frame to be uneven. When the lead frame moves on the die 12, the downward protrusion will scratch the surface of the die 12, thereby reducing the accuracy of the die 12. Moreover, the uneven bottom of the lead frame will also be tilted by the protrusion, which will further affect subsequent work.

[0029] In another embodiment of the present invention, a filler block 124 for filling the gap is movably disposed in the die 12, and the cutting block 111 cooperates with the filler block 124 to flatten the edge of the lead frame notch.

[0030] Specifically, after the long strip of waste material is removed, the filler block 124 moves upward to fill the gap on the die 12, and the lead frame moves relative to the die 12, so that the side of the long strip gap moves above the filler block 124, and the punch 11 moves downward with the cutting block 111. The cutting block 111 and the filler block 124 cooperate to squeeze one side of the long strip gap on the lead frame. Then the lead frame moves in the opposite direction, and the cutting block 111 and the filler block 124 cooperate to squeeze the other side of the long strip gap, flattening the area near the long strip gap of the lead frame to protect the die 12 and make it easy for the bottom of the lead frame to remain flat.

[0031] In another embodiment of the present invention, a guide groove 127 for guiding the movement of the filling block 124 is provided in the die 12. The guide groove 127 includes an inclined portion and a vertical portion facing the cutting block 111.

[0032] Specifically, a wedge block 125 is provided at the bottom of the filling block 124. The filling block 124 is offset from the cutting block 111, while the cutting block 111 is located directly above the inclined surface of the wedge block 125. A square guide block 126 adapted to the vertical part is provided on the wedge block 125. A notch adapted to the inclined part is symmetrically provided on the guide block 126.

[0033] Furthermore, during the waste removal process, the filler block 124 is staggered from the cutting block 111. The waste cut off by the cutting block 111 does not fall above the filler block 124, but falls onto the inclined surface of the wedge block 125. Guided by the inclined surface of the wedge block 125, it falls below the die 12. After the removal process is completed, the inclined surface of the guide block 126 moves along the inclined portion of the guide groove 127. When it moves to the connection between the inclined portion and the vertical portion, the vertical surface of the guide block 126 contacts the vertical portion and continues to move upward along the vertical portion, gradually inserting into the notch on the die 12. The filler block 124 remains vertical during the movement so that it can be accurately inserted into the notch on the die 12.

[0034] In another embodiment of the present invention, a conveyor belt 13 is provided on the die 12, and a plurality of positioning pieces 131 for positioning the lead frame are movably provided on the conveyor belt 13.

[0035] Specifically, the die 12 is provided with a groove for the lead frame to move, a conveyor belt 13 is provided in the side wall of the groove, a positioning piece 131 is hinged on the conveyor belt 13, and ramps for guiding the positioning piece 131 are symmetrically provided on the die 12. A support block 15 is provided on the frame 1 facing the die 12, and a conveyor belt for conveying the lead frame is provided on the support block 15.

[0036] Furthermore, as the lead frame moves onto the die 12, the conveyor belt 13 carries the positioning piece 131. When the positioning piece 131 moves into the groove on the die 12, it hangs down naturally without contacting the lead frame. Then, the lead frame moves synchronously with the conveyor belt 13 under the push of the subsequent lead frame. The positioning piece 131 on the conveyor belt 13 moves along the slope on the die 12 and gradually embeds into the notch on the side of the lead frame, thereby anchoring the lead frame and the conveyor belt 13 together. After the cutting work is completed, the positioning piece 131 moves to another notch on the die 12 and gradually separates from the lead frame. The subsequent positioning piece 131 pushes the lead frame onto the support block 15, and the conveyor belt on the support block 15 carries the lead frame away.

[0037] In another embodiment of the present invention, a positioning disk 132 is provided on the drive roller of the conveyor belt 13. The positioning disk 132 is provided with an inner groove 133 and an outer groove 134 for limiting its rotation angle. Both the inner groove 133 and the outer groove 134 are arc-shaped. The arc of the inner groove 133 is half the arc of the outer groove 134. A slider 135 is slidably provided in the die 12. The slider 135 is provided with an insert 136 that is adapted to the inner groove 133 and the outer groove 134.

[0038] Specifically, the diameter of the positioning disk 132 is larger than the diameter of the drive roller, thereby increasing the distance the conveyor belt 13 can move and improving the rotation accuracy of the positioning disk 132. The insert block 136 is specifically cylindrical, and the conveyor belt 13 is specifically a synchronous belt.

[0039] Furthermore, during the removal of long strips of waste material, the insert block 136 is positioned directly opposite the middle of the outer groove 134 and the beginning of the inner groove 133 on the positioning plate 132. After the long strips of waste material are removed, the movable block moves, and the insert block 136 enters the outer groove 134 on the positioning plate 132. At this time, the drive roller rotates in the forward direction, and the inner groove 133 moves away from the insert block 136 until the insert block 136 moves to the end of the outer groove 134 away from the inner groove 133. At this time, the conveyor belt 13 drives the lead frame to move through the positioning plate 131, and one side of the long strip notch of the lead frame moves to the cutting block. Between 111 and filler block 124, cutter block 111 cooperates with filler block 124 to flatten one side of the long strip-shaped notch of the lead frame. Then, drive roller rotates in the opposite direction, and movable block moves further towards positioning disk 132. Insertion block 136 is inserted into inner groove 133. Drive roller continues to rotate, and insertion block 136 moves to the tail end of inner groove 133. At this time, the other side of the long strip-shaped notch of the lead frame moves between cutter block 111 and filler block 124. Cutter block 111 cooperates with filler block 124 to flatten this side of the long strip-shaped notch of the lead frame, thereby making the bottom of the lead frame flat.

[0040] In another embodiment of the present invention, a positioning groove 14 is provided on the slider 135, and the punch 11 reciprocates in the vertical direction so that the depth of the insert block 136 inserted into the positioning disk 132 is adjustable.

[0041] Specifically, a protrusion 117 is provided on the connecting rod 115, and a lever 118 extending into the positioning groove 14 is provided on the protrusion 117. The positioning groove 14 includes three parallel vertical grooves 142 and inclined grooves 141 corresponding to the vertical grooves 142. The top of the third vertical groove 142 is provided with a reset groove 143 that communicates with the top of the inclined groove 141 corresponding to the first vertical groove 142 (the vertical grooves 142 are numbered first, second, and third from right to left). The length of the first vertical groove 142 is greater than the length of the other two vertical grooves 142. A movable piece 144 is hinged at the connection between the inclined groove 141 and the adjacent vertical groove 142. A torsion spring is provided between the movable piece 144 and the slider 135.

[0042] Furthermore, during the cutting operation, the punch 11 moves the lever 118 via the positioning pin 114, connecting rod 115, and protrusion 117. The lever 118 moves along the inclined groove 141 corresponding to the first vertical groove 142, pushing the slider 135 to move. The insert 136 on the slider 135 moves closer to the positioning plate 132. The punch 11 continues to move downward, and the lever 118 enters the first vertical groove 142, completing the cutting operation. Then, the punch 11 moves upward, and the lever 118 moves upward along the first vertical groove 142, pushing the movable piece 144 located in the vertical groove 142. The movable piece 144 makes room for movement, and when the lever 118 moves to the highest point of the first vertical groove 142... When the time is reached, the movable piece 144 is reset under the action of the torsion spring, sealing the first vertical groove 142. Then, the toggle block 118 enters the second vertical groove 142 under the guidance of the movable piece 144 and the inclined groove 141 corresponding to the second vertical groove 142. The insert block 136 on the slider 135 is inserted into the outer groove 134 of the positioning disk 132. The above operation is repeated, and the toggle block 118 enters the third vertical groove 142. The insert block 136 on the slider 135 is inserted into the inner groove 133 of the positioning disk 132. Then, the toggle block 118 moves upward and returns to the highest point of the inclined groove 141 corresponding to the first vertical groove 142 along the third vertical groove 142 and the reset groove 143. The punch 11 moves to the highest point.

[0043] Furthermore, during the flattening process, the punch 11 moves between the highest and lowest points. During this process, the friction block 116 does not contact the rotating shaft 121, which can extend the service life of the friction block 116 and the rotating shaft 121.

[0044] In another embodiment of the present invention, a lever 129 for connecting multiple filler blocks 124 and having its end embedded in a slider 135 is slidably disposed in the die 12, and a limiting groove 137 for guiding the movement of the lever 129 is disposed in the slider 135.

[0045] Specifically, the guide block 126 is horizontally slidably mounted on the lever 129, the lever 129 is provided with a protrusion extending to the slider 135, and a cylindrical block is provided on the protrusion. The slider 135 is provided with a ramp inside for guiding the movement of the cylindrical block.

[0046] Furthermore, when the push block 118 moves from the highest point of the inclined groove 141 corresponding to the first vertical groove 142 into the first vertical groove 142, the cylindrical block on the push rod 129 does not contact the ramp inside the slider 135. During the process of the push block 118 moving from the first vertical groove 142 to the second vertical groove 142, the cylindrical block moves along the ramp inside the slider 135, thereby pushing the push rod 129 to move upward. The push rod 129 pushes the guide block 126 and the filling block 124 to move upward along the guide groove 127, sealing the notch on the die 12 so as to cooperate with the cutting block 111 to flatten the side of the long strip notch of the lead frame.

[0047] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lead frame stamping and receiving device, characterized in that, Includes a punch (11), in which a pressure bar (112) for pressing waste material is slidably disposed in the cutting block (111) of the punch (11). It also includes a die (12), on which a rotating shaft (121) is symmetrically rotatably arranged. A parallel support plate (122) and a spring plate (123) are arranged in the middle of the rotating shaft (121). A baffle plate (128) for blocking the spring plate (123) is provided on the die (12). Wherein: The two shafts (121) rotate to bring the two pallets (122) into a horizontal position and directly below the cutting block (111), which is embedded in the die (12) to cause the pressure bar (112) to drop and press the waste against the pallet (122).

2. The lead frame stamping and receiving device according to claim 1, characterized in that, The punch (11) is provided with a connecting rod (115) extending into the die (12), and the connecting rod (115) is provided with a friction block (116) for driving the rotating shaft (121) to rotate in one direction.

3. The lead frame stamping and receiving device according to claim 1, characterized in that, The die (12) is movably provided with a filler block (124) for filling the gap thereon, and the cutting block (111) cooperates with the filler block (124) to flatten the edge of the lead frame notch.

4. The lead frame stamping and receiving device according to claim 3, characterized in that, The die (12) has a guide groove (127) for guiding the movement of the filler block (124). The guide groove (127) includes an inclined portion and a vertical portion facing the cut-off block (111).

5. The lead frame stamping and receiving device according to claim 3, characterized in that, The die (12) is provided with a conveyor belt (13), and a plurality of positioning pieces (131) for positioning the lead frame are movably arranged on the conveyor belt (13).

6. The lead frame stamping and receiving device according to claim 5, characterized in that, The drive roller of the conveyor belt (13) is provided with a positioning disk (132), and the positioning disk (132) is provided with an inner groove (133) and an outer groove (134) for limiting its rotation angle.

7. The lead frame stamping and receiving device according to claim 6, characterized in that, The curvature of the inner groove (133) is half the curvature of the outer groove (134).

8. A lead frame stamping and receiving device according to claim 6, characterized in that, A slider (135) is slidably disposed in the die (12), and an insert (136) adapted to the inner groove (133) and the outer groove (134) is disposed on the slider (135).

9. A lead frame stamping and receiving device according to claim 8, characterized in that, The slider (135) is provided with a positioning groove (14), and the punch (11) moves back and forth in the vertical direction so that the depth of the insert (136) inserted into the positioning disk (132) is adjustable.

10. A lead frame stamping and receiving device according to claim 8, characterized in that, The die (12) is slidably provided with a lever (129) for connecting multiple filling blocks (124) and whose end is embedded in the slider (135), and the slider (135) is provided with a limiting groove (137) for guiding the movement of the lever (129).

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