CN214391980U - Stamping die of lead frame - Google Patents

Abstract

The utility model discloses a stamping die of lead frame, including seting up the die cut on the die body, sliding connection has the backup pad in the die cut, and backup pad lower extreme fixed mounting has a plurality of bracing pieces, the diapire of die cut is equipped with a plurality of lift grooves, and all installs the pressure spring between every lift groove and the bracing piece that corresponds, be equipped with the spout on the diapire of die cut, and sliding connection has the kicking block in the spout, rotate through two bull sticks on the lateral wall of spout and be connected with two gears, and two gears all mesh mutually with the lateral wall of kicking block, fixed mounting has servo motor on the lateral wall of die body, and servo motor's output and one of them bull stick fixed connection. Has the advantages that: the utility model discloses can carry out the punching press operation to the lead frame of different thickness, application scope is wider, and can be automatically outside the waste residue discharge die body that forms at the stamping process, avoids leading to the not good problem of production quality because of its card in the die-cut, has reduced the clearance degree of difficulty simultaneously.

Description

Stamping die of lead frame

Technical Field

The utility model relates to a lead frame processing technology field especially relates to a stamping die of lead frame.

Background

Lead frames are used for supporting and mounting chips in integrated circuits, serve to connect with external leads, are important basic material members in the electronic information industry, and are often produced by stamping.

Most of the existing stamping equipment can only perform stamping operation on the lead frame with fixed thickness, the application range is small, waste residues formed during stamping are easy to clamp in a stamping die, the subsequent production quality is influenced, and meanwhile, the cleaning operation is also complex.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem existing in the prior art and providing a stamping die of a lead frame.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a stamping die of lead frame, is including seting up the die slot on the die body, sliding connection has the backup pad in the die slot, and backup pad lower extreme fixed mounting has a plurality of bracing pieces, the diapire of die slot is equipped with a plurality of lift grooves, and all installs the pressure spring between every lift groove and the bracing piece that corresponds, be equipped with the spout on the diapire of die slot, and sliding connection has the kicking block in the spout, rotate through two bull sticks on the lateral wall of spout and be connected with two gears, and two gears all mesh mutually with the lateral wall of kicking block, fixed mounting has servo motor on the lateral wall of die body, and servo motor's output and one of them bull stick fixed connection, install the automatic discharging structure on the die body, and install linkage structure between the automatic discharging structure and one of them bracing piece.

In the stamping die of the lead frame, the automatic discharging structure comprises a transverse groove, a slider, a spring, a discharging block and a discharging groove, the transverse groove is formed in the side wall of the stamping groove, the slider is connected in the transverse groove in a sliding mode, the discharging block is fixedly connected to one end, close to the side wall of the stamping groove, of the slider through the spring, the discharging groove is formed in the side wall of the die body and communicated with the stamping groove, and the discharging groove corresponds to the transverse groove in position.

In foretell stamping die of lead frame, linkage structure comprises rack, horizontal rack, belt drive structure and two ejection of compact gears, rack fixed mounting is on the lateral wall of bracing piece, horizontal rack fixed mounting is on the lower lateral wall of slider, two ejection of compact gear all rotates through the round bar and connects in the mould, and two ejection of compact gears mesh with rack, horizontal rack respectively, belt drive structure installs between two round bars.

In the stamping die for the lead frame, the discharge chute is arranged in an upward inclined manner from left to right, and the height of the discharge chute is greater than or equal to that of the transverse groove.

In the stamping die for the lead frame, one end of the discharging block, which is close to the stamping groove, is arranged in an arc shape.

Compared with the prior art, the utility model discloses the advantage lies in:

1: through the cooperation of servo motor and gear, can adjust the height of the relative spout of kicking block, and then make it inject the range of movement of backup pad in the die slot, be convenient for carry out the punching press operation of different thickness lead frames, application scope is wider.

2: through the cooperation of linkage structure and automatic discharging structure, can be at the in-process of punching operation, outside the waste residue discharge die body that will form automatically, avoid it to block the problem that produces adverse effect to follow-up operation in the die slot, and reduced the clearance degree of difficulty.

To sum up, the utility model discloses can carry out the punching press operation to the lead frame of different thickness, application scope is wider, and can be automatic outside the waste residue discharge die body that forms at the stamping process, avoid leading to the not good problem of production quality because of its card in the die-cut, reduced the clearance degree of difficulty simultaneously.

Drawings

Fig. 1 is a schematic structural view of a stamping die of a lead frame according to the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is an enlarged view of a portion a of fig. 1.

In the figure: the device comprises a die body 1, a notching die 2, a supporting rod 3, a lifting groove 4, a pressure spring 5, a sliding groove 6, a jacking block 7, a gear 8, a servo motor 9, a rack 10, a discharge gear 11, a transverse groove 12, a sliding block 13, a transverse rack 14, a spring 15, a discharge block 16, a belt transmission structure 17, a discharge groove 18 and a supporting plate 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a stamping die for a lead frame comprises a stamping groove 2 formed in a die body 1, wherein a supporting plate 19 is connected in the stamping groove 2 in a sliding manner, a plurality of supporting rods 3 are fixedly mounted at the lower end of the supporting plate 19, a plurality of lifting grooves 4 are formed in the bottom wall of the stamping groove 2, and a pressure spring 5 is mounted between each lifting groove 4 and the corresponding supporting rod 3;

the above is noteworthy:

1. under the cooperation of the support rod 3 and the pressure spring 5, when the lead frame is stamped by stamping equipment, the support plate 19 can apply a certain supporting force to the lead frame and can move up and down in the stamping groove 2, so that the stamping operation can be carried out smoothly.

2. Be equipped with spout 6 on the diapire of die way 2, and sliding connection has kicking block 7 in the spout 6, it is connected with two gears 8 to rotate through two bull sticks on the lateral wall of spout 6, and two gears 8 all mesh with the lateral wall of kicking block 7 mutually, fixed mounting has servo motor 9 on the lateral wall of die body 1, and servo motor 9's output and one of them bull stick fixed connection, through the meshing effect of gear 8 with kicking block 7, when rotating gear 8, can make kicking block 7 reciprocate in spout 6, thereby can follow the lower extreme and support backup pad 19, it prescribes a limit to its shift position in die way 2, thereby be convenient for carry out punching operation to the lead frame of different thickness, application scope is wider.

3. Servo motor 9 during operation can drive the gear 8 rotation that corresponds with it to adjust the height of kicking block 7, another gear 8 can provide the stable supporting effect to the removal of kicking block 7 this moment, and servo motor 9 specifically can adopt the servo motor of MHMF042L1U2M model.

An automatic discharging structure is arranged on the die body 1 and consists of a transverse groove 12, a sliding block 13, a spring 15, a discharging block 16 and a discharging groove 18;

the above is noteworthy:

1. the transverse groove 12 is formed in the side wall of the punching groove 2, the sliding block 13 is connected in the transverse groove 12 in a sliding mode, the discharging block 16 is fixedly connected to one end, close to the side wall of the punching groove 2, of the sliding block 13 through the spring 15, the discharging groove 18 is formed in the side wall of the die body 1, the discharging groove 18 is communicated with the punching groove 2, the discharging groove 18 corresponds to the transverse groove 12 in position, the automatic discharging structure is designed, waste residues formed in the punching process can be automatically discharged out of the die body 1, and adverse effects on follow-up punching operation are avoided.

2. The one end that the play material piece 16 is close to the dashing groove 2 sets up for the arc, and the blown down tank 18 turns right from a left side and sets up for tilt up, and the height of the highly more than or equal to horizontal groove 12 of blown down tank 18, the better discharge die body 1 of the waste residue of being convenient for is outside.

3. A linkage structure is arranged between the automatic discharging structure and one of the support rods 3 and consists of a rack 10, a transverse rack 14, a belt transmission structure 17 and two discharging gears 11, and the automatic discharging structure can be driven to operate by the movement of a support plate 19 in the design of the linkage structure.

4. The rack 10 is fixedly installed on the side wall of the supporting rod 3, the transverse rack 14 is fixedly installed on the lower side wall of the sliding block 13, the two discharging gears 11 are rotatably connected into the die body 1 through round rods, the two discharging gears 11 are respectively meshed with the rack 10 and the transverse rack 14, and the belt transmission structure 17 is installed between the two round rods.

5. When the supporting plate 19 moves downwards, the supporting rod 3 moves downwards simultaneously, and the rack 10 on the supporting rod is matched with the corresponding discharging gear 11 to drive the other discharging gear 11 to rotate in the same direction simultaneously, so that the slide block 13 moves towards the direction of the punching groove 2 in the transverse groove 12 through the design of the transverse rack 14, the discharging block 16 moves out of the transverse groove 12, but the punching equipment and the discharging block are positioned in the punching groove 2 at the moment, so that the movement of the discharging block 16 is blocked, the spring 15 is stressed to stretch and contract, when the punching equipment moves upwards to leave the punching groove 2, the elastic force of the spring 15 enables the discharging block 16 to quickly move out of the transverse groove 12, the supporting plate 19 also starts to reset under the elastic force of the pressure spring 5 to drive the waste residues on the supporting plate, at the moment, the discharging block 16 exerts transverse impact force on the waste residues to enable the waste residues to move out of the discharging groove 18, and when the supporting plate 19 drives the supporting rod 3 to move upwards, the rack 10 and the discharging gear 11 move reversely, the sliding block 13 can drive the discharging block 16 to reset, and the resetting of the supporting plate 19 is prevented from being influenced.

6. The belt drive structure 17 is prior art and its operation principle and specific structure are not specifically described herein.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. A stamping die of a lead frame comprises a stamping groove (2) formed in a die body (1), and is characterized in that a supporting plate (19) is connected in the stamping groove (2) in a sliding manner, a plurality of supporting rods (3) are fixedly mounted at the lower end of the supporting plate (19), a plurality of lifting grooves (4) are formed in the bottom wall of the stamping groove (2), a pressure spring (5) is mounted between each lifting groove (4) and the corresponding supporting rod (3), a sliding groove (6) is formed in the bottom wall of the stamping groove (2), a jacking block (7) is connected in the sliding groove (6), two gears (8) are rotatably connected to the side wall of the sliding groove (6) through two rotating rods, the two gears (8) are meshed with the side wall of the jacking block (7), a servo motor (9) is fixedly mounted on the side wall of the die body (1), and the output end of the servo motor (9) is fixedly connected with one rotating rod, the die body (1) is provided with an automatic discharging structure, and a linkage structure is arranged between the automatic discharging structure and one of the support rods (3).

2. The lead frame stamping die according to claim 1, wherein the automatic discharging structure is composed of a transverse groove (12), a slider (13), a spring (15), a discharging block (16) and a discharging groove (18), the transverse groove (12) is formed on the side wall of the stamping groove (2), the slider (13) is slidably connected in the transverse groove (12), the discharging block (16) is fixedly connected to one end, close to the side wall of the stamping groove (2), of the slider (13) through the spring (15), the discharging groove (18) is formed on the side wall of the die body (1), the discharging groove (18) is communicated with the stamping groove (2), and the discharging groove (18) corresponds to the transverse groove (12).

3. The stamping die of lead frame according to claim 2, characterized in that, the linkage structure comprises rack (10), horizontal rack (14), belt drive structure (17) and two ejection of compact gears (11), rack (10) fixed mounting is on the lateral wall of bracing piece (3), horizontal rack (14) fixed mounting is on the lower lateral wall of slider (13), two ejection of compact gears (11) all rotate through the round bar and connect in die body (1), and two ejection of compact gears (11) mesh with rack (10), horizontal rack (14) respectively, belt drive structure (17) is installed between two round bars.

4. The lead frame stamping die according to claim 2, characterized in that the discharge chute (18) is arranged obliquely upward from left to right, and the height of the discharge chute (18) is greater than or equal to the height of the transverse slot (12).

5. Lead frame stamping die according to claim 2, characterized in that the end of the tapblock (16) close to the stamping groove (2) is arc-shaped.

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