Cutting equipment for lead frame processing

Abstract

The utility model relates to the technical field of lead frame cutting, in particular to cutting equipment for lead frame processing, which comprises a base, four groups of upright posts are fixedly mounted on the base, a top plate is fixedly mounted at the upper ends of the four groups of upright posts, and a hydraulic telescopic rod is fixedly mounted on the top plate. The telescopic end of the hydraulic telescopic rod is fixedly provided with a fishing gull stamping plate, the stamping plate is slidably connected to the four sets of stand columns in a sleeving mode, the lower side of the stamping plate is fixedly provided with a punch through a bolt, and the upper side of the base is fixedly provided with a lower die base through a bolt. The punching plate drives the punch to move downwards, the four sets of fixing plates and clamping plates on the punch are inserted into the four sets of first grooves to be connected with the four sets of clamping blocks in a clamped mode, then the punching plate drives the punch to reset, and the four sets of clamping blocks and the bottom plate are lifted upwards through the four sets of fixing plates and the four sets of second grooves. And the two groups of first connecting rods and the two groups of second connecting rods are pulled out of the lower die holder along with the rising of the bottom plate from the lower die holder.

Description

TECHNICAL FIELD

[0001] The utility model relates to lead frame cutting technical field, concretely is a kind of cutting equipment for lead frame processing. BACKGROUND

[0002] Lead frame is the chip carrier of integrated circuit, is a kind of gold wire, aluminum wire, copper wire realizes the electrical connection of chip internal circuit lead-out end and external lead by means of bonding material, forms the key structural member of electric circuit, it plays the bridge role of connection with external wire, and most of semiconductor integrated block needs to use lead frame, is important basic material in electronic information industry.Lead frame sampling detection needs to be cut by cutting equipment to cut sample, and other products on lead frame are normally retained, when the existing lead frame cutting equipment is discharged after cutting, the frame needs to be fixed on the fixing device, then the lead frame needs to be lifted manually to separate, it is tedious to operate, and the discharge is not convenient, therefore we propose a kind to be cut by cutting equipment for lead frame processing to solve the above problems. SUMMARY

[0003] The utility model aims at providing a kind of cutting equipment for lead frame processing to solve the problem that the frame needs to be fixed on the fixing device when the lead frame is discharged after cutting in the background art, then the lead frame needs to be lifted manually to separate, it is tedious to operate, and the discharge is not convenient.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of cutting equipment for lead frame processing, including base, four groups of stand columns are fixedly installed on the base, the upper end of four groups of the stand column is fixedly installed with top plate, the top plate is fixedly installed with hydraulic telescopic rod, the telescopic end of the hydraulic telescopic rod is fixedly installed with fish crow stamping plate, the stamping plate is slidably sleeved on four groups of stand columns, the lower side of the stamping plate is fixedly installed with punch by bolt, the upper side of the base is fixedly installed with lower die holder by bolt, the punch and lower die holder are provided with lifting assembly, the right side of the base is provided with discharge assembly.

[0005] Preferably, the lifting assembly comprises four groups of first grooves, the four groups of first grooves are arranged in the front and back ends of the lower die seat, the lower die seat is provided with a bottom plate, the front and back sides of the bottom plate are fixedly provided with two groups of first protrusions, the four groups of first protrusions are fixedly provided with clamping blocks, four groups of movable grooves are arranged in the lower die seat, the two groups of movable grooves in the right end of the lower die seat are movably provided with first connecting rods, the two groups of movable grooves in the left end of the lower die seat are movably provided with second connecting rods, the upper ends of the two groups of first connecting rods and the two groups of second connecting rods are rotatably connected with the left and right ends of the bottom plate, the front and back sides of the punch are fixedly provided with two groups of second protrusions, the two groups of second protrusions in the left end of the punch are fixedly provided with electric telescopic rods, the two groups of second protrusions in the right end of the punch and the two groups of electric telescopic rods are fixedly provided with fixed plates, the four groups of fixed plates are provided with second grooves, the four groups of second grooves are rotatably provided with clamping plates, and torsion springs are arranged at the connecting positions between the four groups of clamping plates and the inner walls of the four groups of second grooves.

[0006] Preferably, the connection between the four groups of clamping blocks, the four groups of fixed plates and the four groups of clamping plates is in L shape, and the connection between the four groups of clamping blocks, the four groups of fixed plates and the four groups of clamping plates is arranged oppositely in up and down directions.

[0007] Preferably, the lower ends of the two groups of first connecting rods are in square shape, the lower ends of the two groups of second connecting rods are in cylindrical shape, and the lengths of the two groups of first connecting rods and the two groups of second connecting rods are greater than the height of the mold groove on the lower die seat.

[0008] Preferably, the blanking assembly comprises a guide plate, the guide plate is fixedly installed on the right side of the base, a screw rod is rotatably installed in the guide plate, a blanking frame is movably inserted into the guide plate, the lower end of the blanking frame is connected with the screw rod, two groups of rollers are rotatably installed in the upper end left side of the blanking frame, two groups of gears are fixedly installed at the front ends of the two groups of rollers, the two groups of gears are meshed, a motor is fixedly installed on the front side of the blanking frame, and the output shaft of the motor is connected with the rollers.

[0009] Preferably, the surfaces of the two groups of rollers are provided with protective layers made of rubber material.

[0010] Compared with the prior art, the utility model discloses the beneficial effects are: the utility model discloses the punch head is driven down with the punch plate, and four groups of fixed plates and the card board on the punch head are inserted four groups of first recess and are connected with four groups of card block, then the punch plate drives the punch head reset and passes four groups of fixed plates and four groups of second recess and lifts four groups of card block and bottom plate upward, and with bottom plate from the lower die seat rises and pulls two groups of first connecting rod and two groups of second connecting rod from the lower die seat, the two groups of electric telescopic leg of punch left end drive two groups of fixed plates and two groups of card board shrink upward, make the bottom plate left end of lifting height, make the bottom plate present oblique, the lead frame on the bottom plate frame falls, can cut the lead frame of unloading, improve the lead frame unloading efficiency, do not need manual mode and unload.

[0011] The output shaft of the motor drives two groups of rollers and two groups of gears to rotate, so that the lead frame that falls on the bottom plate enters between the two groups of rollers, and is discharged through the rotation of the two groups of rollers, so that the lead frame conveying and unloading is completed, and the continuity of the lead frame unloading is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0013] Figure 1 It is the structure right view schematic diagram of the utility model;

[0014] Figure 2 It is the structure right view schematic diagram of the utility model;

[0015] Figure 3 It is the structure right view schematic diagram of the utility model;

[0016] Figure 4 It is the structure right view schematic diagram of the utility model;

[0017] Figure 5 It is the structure right view schematic diagram of the utility model; Figure 2 The partial enlarged schematic diagram of the utility model A;

[0018] Figure 6 It is the structure right view schematic diagram of the utility model; Figure 4 The partial enlarged schematic diagram of the utility model B.

[0019] In the figure: 1, base; 2, stand; 3, top plate; 4, hydraulic telescopic rod; 5, punch plate; 6, punch; 7, lower die holder; 8, first groove; 9, bottom plate; 10, first protrusion; 11, clamping block; 12, movable slot; 13, first connecting rod; 14, second connecting rod; 15, second protrusion; 16, electric telescopic rod; 17, fixed plate; 18, second groove; 19, clamping plate; 20, torsion spring; 21, guide plate; 22, screw rod; 23, blanking frame; 24, roller; 25, gear; 26, motor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-6 The utility model provides an embodiment: a kind of cutting equipment for lead frame processing, including base 1, four groups of stand 2 are fixedly installed on base 1, the upper end of four groups of stand 2 is fixedly installed with top plate 3, top plate 3 is fixedly installed with hydraulic telescopic rod 4, the telescopic end of hydraulic telescopic rod 4 is fixedly installed with fish punch plate 5, punch plate 5 is slidably sleeved on four groups of stand 2, the downside of punch plate 5 is fixedly installed with punch 6 by bolt, the upside of base 1 is fixedly installed with lower die holder 7 by bolt, punch 6 and lower die holder 7 are provided with lifting assembly, the right side of base 1 is provided with blanking assembly, and the lead frame is placed on lower die holder 7 in the device, punch plate 5 and punch 6 are driven by hydraulic telescopic rod 4 to cut lead frame, and when punch 6 resets, lead frame after cutting is lifted by lifting assembly, then lead frame is conveyed blanking by blanking assembly, and the step of cutting and blanking lead frame is completed.

[0022] Further, the lifting assembly comprises four sets of first grooves 8, which are arranged in the front and rear ends of the lower die seat 7. The lower die seat 7 is provided with a bottom plate 9, and two sets of first protrusions 10 are fixedly installed on the front and rear sides of the bottom plate 9. A clamping block 11 is fixedly installed on each of the four sets of first protrusions 10. Four sets of movable grooves 12 are arranged in the lower die seat 7. A first connecting rod 13 is movably installed in each of the two movable grooves 12 at the right end of the lower die seat 7. A second connecting rod 14 is movably installed in each of the two movable grooves 12 at the left end of the lower die seat 7. The upper ends of the two sets of first connecting rods 13 and the two sets of second connecting rods 14 are rotatably connected to the left and right ends of the bottom plate 9. Two sets of second protrusions 15 are fixedly installed on the front and rear sides of the punch 6. An electric telescopic rod 16 is fixedly installed on the two sets of second protrusions 15 at the left end of the punch 6. A fixed plate 17 is fixedly installed on the two sets of second protrusions 15 and the two sets of electric telescopic rods 16 at the right end of the punch 6. A second groove 18 is arranged in each of the four sets of fixed plates 17. A clamping plate 19 is rotatably installed in each of the four sets of second grooves 18. A torsion spring 20 is arranged at the connection between the four sets of clamping plates 19 and the inner walls of the four sets of second grooves 18. The structure drives the stamping plate 5 and the punch 6 to move downward through the hydraulic telescopic rod 4. The four sets of fixed plates 17 and the clamping plates 19 on the punch 6 are clamped with the four sets of clamping blocks 11. The punch 6 is reset to drive the four sets of clamping blocks 11 and the bottom plate 9 to rise through the four sets of fixed plates 17 and the four sets of clamping plates 19. As the bottom plate 9 rises, the two sets of electric telescopic rods 16 at the left end of the punch 6 lift the two sets of fixed plates 17 and the two sets of clamping plates 19 to keep the bottom plate 9 in an inclined state. Then the lead frame on the bottom plate 9 slides to the right, and the blanking of the lead frame is completed.

[0023] Further, the connection of the four sets of clamping blocks 11, the four sets of fixed plates 17, and the four sets of clamping plates 19 forms an L shape. The connection of the four sets of clamping blocks 11, the four sets of fixed plates 17, and the four sets of clamping plates 19 is arranged in an up-down opposite manner. The structure is shaped according to the connection of the four sets of clamping blocks 11, the four sets of fixed plates 17, and the four sets of clamping plates 19, so that the four sets of clamping blocks 11 can be clamped together with the four sets of fixed plates 17 and the four sets of clamping plates 19, and the four sets of fixed plates 17 and the four sets of clamping plates 19 can easily lift the four sets of clamping blocks 11 upward.

[0024] Further, the lower ends of the two sets of first connecting rods 13 are square-shaped, and the lower ends of the two sets of second connecting rods 14 are cylindrical. The lengths of the two sets of first connecting rods 13 and the two sets of second connecting rods 14 are greater than the height of the mold groove on the lower die seat 7. According to the lengths and the shapes of the lower ends of the two sets of first connecting rods 13 and the two sets of second connecting rods 14, the two sets of second connecting rods 14 can swing left and right when they are lifted in the two sets of movable grooves 12, and the two sets of first connecting rods 13 can vertically slide up and down in the two sets of movable grooves 12.

[0025] Further, the blanking assembly comprises a guide plate 21 fixedly installed on the right side of the base 1, a screw rod 22 rotatably installed in the guide plate 21, and a blanking frame 23 movably inserted into the guide plate 21, wherein the lower end of the blanking frame 23 is connected with the screw rod 22, the upper end of the blanking frame 23 is rotatably installed with two groups of rollers 24 on the left side, the front end of the two groups of rollers 24 is fixedly installed with gears 25, the two groups of gears 25 are engaged with each other, and the front side of the blanking frame 23 is fixedly installed with a motor 26, and the output shaft of the motor 26 is connected with the rollers 24. When the lead frame frame on the bottom plate 9 slides out and is inserted into the two groups of rollers 24, the output shaft of the motor 26 drives the two groups of rollers 24 and the two groups of gears 25 to rotate, so that the lead frame frame on the bottom plate 9 can completely slide to the right and fall out.

[0026] Further, the surfaces of the two groups of rollers 24 are provided with protective layers made of rubber material. According to the protective layers on the surfaces of the two groups of rollers 24, the two groups of rollers 24 are prevented from scratching the lead frame frame during conveying.

[0027] Working principle: when the lead frame frame after cutting is blanked, the lead frame frame is inserted into the two groups of rollers 24, the output shaft of the motor 26 drives the two groups of rollers 24 and the two groups of gears 25 to rotate, so that the lead frame frame on the bottom plate 9 can completely slide to the right and fall out. Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the hydraulic telescopic rod 4 drives the stamping plate 5 and the punch 6 to move downward to cut the lead frame on the lower die seat 7, then the second protrusions 15 on both sides of the punch 6 are inserted into the four groups of first recesses 8, and the two groups of electric telescopic rods 16, the four groups of fixed plates 17 and the four groups of clamping plates 19 of the four groups of second protrusions 15 are inserted into the four groups of second recesses 18 to be clamped with the four groups of clamping blocks 11, then the hydraulic telescopic rod 4 drives the stamping plate 5 and the punch 6 to slide upward to reset, the punch 6 pulls the bottom plate 9 out of the lower die seat 7 through the four groups of fixed plates 17 and the four groups of clamping plates 19 on the four groups of second protrusions 15, and when the bottom plate 9 is lifted upward, the four groups of first connecting rods 13 and the four groups of second connecting rods 14 slide in the four groups of movable grooves 12, and when the bottom plate 9 is lifted to be flush with the blanking frame 23, the two groups of electric telescopic rods 16 at the left end of the punch 6 drive the two groups of fixed plates 17 and the second recesses 18 to rise upward, so that the left end of the bottom plate 9 is lifted, and the bottom plate 9 is kept in an inclined state as a whole, and the upper ends of the two groups of first connecting rods 13 and the two groups of second connecting rods 14 rotate on the bottom plate 9, the lead frame on the bottom plate 9 slides off, the hydraulic telescopic rod 4 drives the stamping plate 5 and the punch 6 to continue to rise upward, then the four groups of clamping plates 19 on the four groups of lower die seats 7 rotate, so that the four groups of clamping blocks 11 on the bottom plate 9 are separated from the four groups of clamping plates 19, the bottom plate 9, the four groups of first protrusions 10 and the four groups of clamping blocks 11 slide downward to reset through the two groups of first connecting rods 13 and the two groups of second connecting rods 14, the four groups of clamping plates 19 rotate to reset under the torsional action of the four groups of torsional springs 20, the lead frame on the bottom plate 9 slides off and is inserted into the two groups of rollers 24, the output shaft of the motor 26 drives the two groups of gears 25 to rotate, the rotation of the two groups of gears 25 drives the two groups of rollers 24 to rotate relatively, so that the lead frame inserted between the two groups of rollers 24 is conveyed to the blanking frame 23, and the above is the whole working principle of the utility model.

[0028] It is apparent for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A cutting device for lead frame processing, comprising a base (1), characterized in that: Four groups of vertical columns (2) are fixedly installed on the base (1), the upper ends of the four groups of vertical columns (2) are fixedly installed with a top plate (3), the top plate (3) is fixedly installed with a hydraulic telescopic rod (4), the telescopic end of the hydraulic telescopic rod (4) is fixedly installed with a gull punch plate (5), the punch plate (5) is slidably sleeved on the four groups of vertical columns (2), the lower side of the punch plate (5) is fixedly installed with a punch (6) through bolts, the upper side of the base (1) is fixedly installed with a lower die holder (7) through bolts, the punch (6) and the lower die holder (7) are provided with a lifting assembly, and the right side of the base (1) is provided with a blanking assembly.

2. The cutting apparatus for lead frame processing according to claim 1, wherein: The lifting assembly comprises four groups of first grooves (8), the four groups of first grooves (8) are formed in the front and rear ends of the lower die holder (7), the lower die holder (7) is provided with a bottom plate (9), two groups of first protrusions (10) are fixedly installed on the front and rear sides of the bottom plate (9), a clamping block (11) is fixedly installed on each of the four groups of first protrusions (10), four groups of movable grooves (12) are formed in the lower die holder (7), a first connecting rod (13) is movably installed in each of the two movable grooves (12) at the right end of the lower die holder (7), a second connecting rod (14) is movably installed in each of the two movable grooves (12) at the left end of the lower die holder (7), the upper ends of the two groups of first connecting rods (13) and the two groups of second connecting rods (14) are rotatably connected with the left and right ends of the bottom plate (9), two groups of second protrusions (15) are fixedly installed on the front and rear sides of the punch (6), an electric telescopic rod (16) is fixedly installed on the two groups of second protrusions (15) at the left end of the punch (6), a fixed plate (17) is fixedly installed on the two groups of second protrusions (15) and the two groups of electric telescopic rods (16) at the right end of the punch (6), a second groove (18) is formed in each of the four groups of fixed plates (17), a clamping plate (19) is rotatably installed in each of the four groups of second grooves (18), and a torsion spring (20) is arranged at the connection between each of the four groups of clamping plates (19) and the inner wall of the four groups of second grooves (18).

3. The cutting apparatus for lead frame processing according to claim 2, wherein: The connection of the four groups of clamping blocks (11) and the four groups of fixed plates (17) with the four groups of clamping plates (19) is L-shaped, and the connection of the four groups of clamping blocks (11) and the four groups of fixed plates (17) with the four groups of clamping plates (19) is arranged oppositely.

4. The cutting apparatus for lead frame processing according to claim 2, wherein: The lower ends of the two groups of first connecting rods (13) are square, the lower ends of the two groups of second connecting rods (14) are cylindrical, and the lengths of the two groups of first connecting rods (13) and the two groups of second connecting rods (14) are greater than the height of the die groove on the lower die holder (7).

5. The cutting apparatus for lead frame processing according to claim 1, wherein: The blanking assembly comprises a guide plate (21) fixedly installed on the right side of the base (1), a screw rod (22) rotatably installed in the guide plate (21), a blanking frame (23) movably inserted into the guide plate (21), the lower end of the blanking frame (23) connected with the screw rod (22), two groups of rollers (24) rotatably installed on the upper end left side of the blanking frame (23), gear wheels (25) fixedly installed on the front ends of the two groups of rollers (24), the two groups of gear wheels (25) engaged with each other, and a motor (26) fixedly installed on the front side of the blanking frame (23), the output shaft of the motor (26) connected with the rollers (24).

6. The cutting apparatus for lead frame processing according to claim 5, wherein: The surfaces of the two groups of rollers (24) are provided with protective layers made of rubber.

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