Copper material processing device for lead frame production

Abstract

The utility model relates to the technical field of lead frame processing, in particular to a copper material processing device for lead frame production, an upper die for stamping is mounted on a base in a sliding manner, an ejector rod for discharging is mounted in the upper die in a sliding manner, a spring is mounted on the ejector rod, and the upper die and the ejector rod are connected through a connecting rod. Transmission wheels are symmetrically and rotationally installed at the two ends of the base, a conveying belt is installed between the two transmission wheels, first stepping motors are symmetrically and fixedly installed on the base, and bevel gear sets are installed between the first stepping motors and the transmission wheels; the upper die drives the ejector rod to slide downwards, the ejector rod is extruded to overcome the elastic force of the spring to keep still, the upper die continues to slide downwards to complete stamping, then the hydraulic machine drives the upper die to slide upwards, the ejector rod slides towards the outer side of the upper die under the elastic force effect of the spring, and the ejector rod ejects copper materials left in the upper die out. And the effect of preventing the machining precision and the production efficiency from being affected by die clamping is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lead frame processing technical field, especially a copper material processing device for lead frame production. BACKGROUND

[0002] In the production process of lead frame, it is very important to accurately process the copper material. In practical applications, the copper material processing device for lead frame production usually needs the following technologies:

[0003] 1. Cutting mechanism, such as laser cutting machine, wire cutting machine, etc., which can cut the copper material into a specific shape and size;

[0004] 2. Punch mechanism, such as various types of punch dies and punch equipment, which realizes the punch forming of the copper material;

[0005] 3. Drilling mechanism, such as numerical control drilling machine, which accurately drills holes in the copper material.

[0006] The existing punch device will punch the required slot hole on the copper plate through the pressing of the upper and lower molds.

[0007] However, during the implementation of the above technical solutions, at least the following technical problems are found: During the punching process, the punched material is easily stuck in the mold, causing the mold to be blocked, which not only affects the subsequent processing accuracy, but also causes the production efficiency to be reduced during maintenance. INVENTION CONTENTS

[0008] In view of the deficiencies of the prior art, the utility model provides a copper material processing device for lead frame production, which solves the technical problem that the punched material is easily stuck in the mold during the punching process, causing the mold to be blocked, which not only affects the subsequent processing accuracy, but also causes the production efficiency to be reduced during maintenance.

[0009] To achieve the above purpose, the utility model realizes the following technical solutions:

[0010] A copper material processing device for lead frame production, comprising a base, a lower mold for punching is fixedly installed on the base, an upper mold for punching is slidingly installed on the base, a ejector rod for discharging is slidingly installed in the interior of the upper mold, a spring is installed on the ejector rod, a transmission wheel is rotationally installed on both ends of the base, a conveyor belt is installed between the two transmission wheels, a first stepper motor is fixedly installed on the base in a symmetrical manner, and a bevel gear set is installed between the first stepper motor and the transmission wheel.

[0011] Preferably, a discharging port is formed in the base.

[0012] Preferably, a recycling box is slidingly installed on the base.

[0013] Preferably, the polishing barrel is symmetrically rotatably installed on the base.

[0014] Preferably, the second stepping motor is fixedly installed at the side end of the base.

[0015] Preferably, a straight-toothed gear set is installed between the second stepping motor and the polishing barrel.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] I. The upper die will press the required slot hole on the copper plate, and in this process, the upper die will drive the ejector rod to slide downward, the ejector rod will first contact the copper plate, then the ejector rod is extruded to overcome the elastic force of the spring to keep still, the upper die continues to slide downward to complete the stamping, then the hydraulic machine will drive the upper die to slide upward, the ejector rod slides to the outside of the upper die under the elastic force of the spring in the process of upward sliding of the upper die, the ejector rod will eject the copper material left in the upper die to the original position of the copper plate, then the conveyor belt continues to rotate to take the stamped copper plate away from above the lower die, thereby avoiding the die from being stuck to affect the machining precision and production efficiency.

[0018] II. When the conveyor belt drives the copper plate to move mechanically, the copper material left in the copper plate will fall into the recycling box under the action of gravity when passing above the discharge port, then the copper plate continues to move, the second stepping motor drives the two polishing barrels to rotate relatively through the straight-toothed gear set, when the copper plate passes through the two polishing barrels, the rotating two polishing barrels will polish the burrs generated by stamping on the copper plate, thereby improving the machining quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the content of the specification can be implemented, the following preferred embodiments of the utility model are described in detail with reference to the drawings.

[0020] Figure 1 It is the base structure diagram of the utility model;

[0021] Figure 2 It is the lower die structure diagram of the utility model;

[0022] Figure 3 It is the base sectional structure diagram of the utility model;

[0023] Figure 4 It is the sectional structure diagram of the upper die of the utility model;

[0024] Figure 5 It is the polishing barrel structure diagram of the utility model.

[0025] Legend: 1, base; 2, lower mold; 3, upper mold; 4, ejector rod; 5, spring; 6, transmission wheel; 7, conveyor belt; 8, first stepper motor; 9, bevel gear set; 11, discharge port; 12, recovery box; 13, polishing cylinder; 14, second stepper motor; 15, spur gear set. DETAILED DESCRIPTION

[0026] The technical problem of the present application is effectively solved by providing a copper material processing device for lead frame production. In the stamping process, the material stamped down is easy to be stuck in the mold, causing the mold to be blocked, which not only affects the subsequent processing precision, but also causes the production efficiency to be reduced during maintenance. The upper mold is downwardly stamped to press the required slot hole on the copper plate. In this process, the upper mold will drive the ejector rod to slide downward. The ejector rod will first contact the copper plate, and then the ejector rod will be extruded to overcome the spring force to remain stationary. The upper mold continues to slide down to complete the stamping. Then the hydraulic machine drives the upper mold to slide upward. The ejector rod slides outward to the outside of the upper mold under the action of the spring force. The ejector rod will eject the copper material left in the upper mold and make the copper material stay in the original position of the copper plate. Then the conveyor belt continues to rotate to take the stamped copper plate away from above the lower mold. This achieves the effect of avoiding the mold from being stuck to affect the processing precision and production efficiency. When the copper plate is moved by the conveyor belt, the copper material left in the copper plate will fall into the recovery box under the action of gravity. Then the copper plate continues to move. The second stepper motor drives the two polishing cylinders to rotate relatively through the spur gear set. When the copper plate passes through the two polishing cylinders, the rotating two polishing cylinders will polish the burrs generated by the stamping on the copper plate. This achieves the effect of improving the processing quality.

[0027] EMBODIMENT

[0028] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the technical solution in the present application effectively solves the technical problem that the material stamped down is easy to be stuck in the mold, causing the mold to be blocked, which not only affects the subsequent processing precision, but also causes the production efficiency to be reduced during maintenance. The overall idea is as follows:

[0029] In view of the problems existing in the prior art, the utility model provides a copper material processing device for lead frame production, which comprises a base 1, a lower mold 2 for stamping is fixedly installed on the base 1, and an upper mold 3 for stamping is slidingly installed on the base 1. The inside of the upper mold 3 is slidingly installed with an ejector rod 4 for discharging.

[0030] The top rod 4 is provided with a spring 5, the base 1 is symmetrically provided with a transmission wheel 6 which is rotatably installed at both ends of the base 1, a conveying belt 7 is installed between the two transmission wheels 6, the base 1 is symmetrically provided with a first stepping motor 8 which is fixedly installed on the base 1, and a bevel gear set 9 is installed between the first stepping motor 8 and the transmission wheel 6.

[0031] The base 1 is provided with a discharge port 11, a recycling box 12 is slidably installed on the base 1, a polishing cylinder 13 is rotatably installed on the base 1, a second stepping motor 14 is fixedly installed on the side end of the base 1, and a straight tooth gear set 15 is installed between the second stepping motor 14 and the polishing cylinder 13.

[0032] The base 1 is the main frame of the entire processing device, and provides installation and support for other components;

[0033] The lower die 2 is used for stamping the copper plate to press out a groove hole on the copper plate;

[0034] The upper die 3 slides to perform a stamping action under the push of the hydraulic machine;

[0035] The top rod 4 first contacts the copper plate and remains stationary under extrusion during stamping, and then pushes out the copper material left inside the upper die 3 after stamping is completed;

[0036] The spring 5 provides elastic force for the top rod 4 to play a role in pushing out the copper material;

[0037] The transmission wheel 6 rotates to drive the conveying belt 7, thereby moving the copper plate;

[0038] The conveying belt 7 drives the copper plate to slide from both sides, so that the copper plate moves to a designated position for stamping and subsequent processing;

[0039] The first stepping motor 8 rotates the transmission wheel 6 through the bevel gear set 9 after being started;

[0040] The bevel gear set 9 connects the first stepping motor 8 and the transmission wheel 6 to transmit power;

[0041] The discharge port 11 is a passage or opening for the waste on the copper plate to fall off;

[0042] The recycling box 12 collects the waste generated by stamping;

[0043] The polishing cylinder 13 rotates relatively to polish burrs generated by stamping on the copper plate;

[0044] The second stepping motor 14 rotates the polishing cylinder 13 through the straight tooth gear set 15;

[0045] The straight tooth gear set 15 connects the second stepping motor 14 and the polishing cylinder 13 to transmit power.

[0046] Working principle:

[0047] First step, the top rod 4 is connected with the hydraulic machine, the first step motor 8 and the second step motor 14 are connected with the control system, in use, the copper plate needing stamping is placed on the base 1, the first step motor 8 starts and will drive the transmission wheel 6 to rotate through the bevel gear set 9, the transmission wheel 6 will drive the transmission belt 7 to rotate, two transmission belts 7 drive the copper plate to slide from both sides, make the copper plate move to the lower die 2, then the upper die 3 will slide under the push of the hydraulic machine, the upper die 3 downward stamping will press the required slot hole on the copper plate, in this process, the upper die 3 will drive the top rod 4 to slide downward, the top rod 4 will first contact with the copper plate, then the top rod 4 is extruded to overcome the elastic force of the spring 5 and keep still, the upper die 3 continues to slide down and completes stamping, then the hydraulic machine will drive the upper die 3 to slide upward, the top rod 4 slides to the outside of the upper die 3 under the elastic force of the spring 5 in the process of sliding upward, the top rod 4 will top out the copper material left in the upper die 3 and make the copper material stay in the original position of the copper plate, then the transmission belt 7 continues to rotate and will make the stamped copper plate away from the lower die 2, achieves the effect of avoiding the mold stuck to affect the processing precision and production efficiency.

[0048] Second step, the transmission belt 7 drives the copper plate to move mechanically and will pass through the above of the discharge port 11, the copper material left in the copper plate will fall into the recycling box 12 under the action of gravity, then the copper plate continues to move, the second step motor 14 drives the two polishing cylinders 13 to rotate oppositely through the spur gear set 15, when the copper plate passes through the two polishing cylinders 13, the rotating two polishing cylinders 13 will polish the burrs generated by stamping on the copper plate, achieves the effect of improving the processing quality.

[0049] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and not limited to the implementation mode. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A copper material processing apparatus for lead frame production, comprising a base (1), characterized in that, A lower die (2) for stamping is fixedly installed on the base (1). An upper die (3) for stamping is slidably installed on the base (1). A push rod (4) for material discharge is slidably installed inside the upper die (3). A spring (5) is installed on the push rod (4). Transmission wheels (6) are symmetrically rotated at both ends of the base (1). A conveyor belt (7) is installed between the two transmission wheels (6). A first stepper motor (8) is symmetrically fixedly installed on the base (1). A bevel gear set (9) is installed between the first stepper motor (8) and the transmission wheels (6).

2. The copper material processing apparatus for lead frame production as described in claim 1, characterized in that, The base (1) is provided with a discharge port (11).

3. The copper material processing apparatus for lead frame production as described in claim 1, characterized in that, A recycling box (12) is slidably mounted on the base (1).

4. The copper material processing apparatus for lead frame production as described in claim 1, characterized in that, A grinding cylinder (13) is symmetrically and rotatably mounted on the base (1).

5. The copper material processing apparatus for lead frame production as described in claim 1, characterized in that, A second stepper motor (14) is fixedly installed on the side end of the base (1).

6. The copper material processing apparatus for lead frame production as described in claim 5, characterized in that, A spur gear set (15) is installed between the second stepper motor (14) and the grinding cylinder (13).

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