A device for shaping the pins of a chip electronic component and a shaping machine

Abstract

The application relates to the technical field of electronic component production equipment, and particularly provides a chip electronic component pin shaping device and a shaping machine. In a first aspect, the chip electronic component pin shaping device comprises a base, a first shaping mechanism and a first guide block. In the application, first guide surfaces are arranged on the two sides of the first guide block, so that the movement tracks of a first shaping wheel and a second shaping wheel are controlled, the relative sliding of the first shaping wheel and the second shaping wheel on the surface of the pin of a product is reduced, the first shaping wheel and the second shaping wheel are prevented from producing scratches on the surface of the pin, and processing precision and surface quality are provided. In a second aspect, the shaping machine comprises the chip electronic component pin shaping device in the first aspect, is used for realizing automatic production, and improves production efficiency and product quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic component production equipment, and in particular to a lead shaping device for chip electronic components and a shaping machine. BACKGROUND

[0002] Solid tantalum capacitors are formed by pressing tantalum powder into an anode body in a high-temperature furnace, and the dielectric is formed by placing the anode body in an acid to impart power and form a porous amorphous Ta2O5 dielectric film. The working electrolyte is a manganese nitrate solution that is decomposed at high temperature to form MnO2, and a graphite layer is used as a lead connection. Tantalum capacitors have superior performance, can achieve large capacity while keeping the volume relatively small, are easy to process into small and chip-shaped components, and are suitable for current electronic device assembly automation and miniaturization development. They are widely used in military, aerospace, aviation electrical equipment and other fields. During production, solid tantalum capacitors usually need to be formed, sintered, tested for capacity, assembled, energized, coated with fluorine, coated, coated with graphite silver paste, coated with a chip, glued and cured, spot welded, molded and cured, cut, sandblasted, plated, marked, shaped, leakage predicted, aged, tested, inspected, banded, and stored.

[0003] During the shaping process, the leads on both sides of the solid tantalum capacitor need to be cut to a fixed length, and then the leads on both sides of the solid tantalum capacitor are bent twice to make the leads adhere to the surface of the solid tantalum capacitor. The existing bending equipment usually produces relative sliding, leaving a large number of scratches on the surface of the leads, which cannot meet the use requirements of military standards. SUMMARY

[0004] The present application aims to solve at least one of the technical problems in the background art, and provides a lead shaping device for chip electronic components and a shaping machine, which can avoid scratches on the surface of the leads and improve the surface quality.

[0005] To achieve the above-mentioned application purposes, in a first aspect, the present application provides a lead shaping device for chip electronic components, which can bend and shape the leads and improve the quality of the lead surface. In a second aspect, the present application also provides a shaping machine that can use the lead shaping device for chip electronic components of the first aspect.

[0006] In the first aspect of the present application, the present application provides a lead shaping device for chip electronic components, which comprises:

[0007] a base;

[0008] The first shaping mechanism is provided with a first swing arm, a second swing arm, a pre-tightening spring, a first shaping wheel, a second shaping wheel, a first guide wheel and a second guide wheel; the first swing arm and the second swing arm are respectively rotationally connected to two sides of the base, one end of the pre-tightening spring is abutted with the upper end of the first swing arm, the other end of the pre-tightening spring is abutted with the upper end of the second swing arm; the lower end of the first swing arm is rotationally connected with the first shaping wheel, and the lower end of the second swing arm is rotationally connected with the second shaping wheel; the first guide wheel is rotationally connected with the first swing arm and is located between the rotation center of the first swing arm and the first shaping wheel, and the second guide wheel is rotationally connected with the second swing arm and is located between the rotation center of the second swing arm and the second shaping wheel.

[0009] The first guide block is slidably connected with the base, and two sides of the first guide block are respectively provided with first guide surfaces, the lower end of the first guide surface is inclined along the center of the first guide block, and the first guide surface has an included angle α with the vertical surface, 6°≤α≤10°.

[0010] According to an aspect of the present application, the lower end of the first guide surface is provided with a second guide surface, the lower end of the second guide surface is inclined along the center of the first guide block, and the second guide surface has an included angle β with the vertical surface, wherein α≥β.

[0011] According to an aspect of the present application, the second guide surface is a vertical surface.

[0012] According to an aspect of the present application, the lower end of the second guide surface is provided with a third guide surface, the lower end of the third guide surface is inclined along the center of the first guide block, and the third guide surface has an included angle γ with the vertical surface, and the third guide surface has an included angle γ with the vertical surface, wherein α≥γ.

[0013] According to an aspect of the present application, the second shaping mechanism is arranged on the base and located behind the first shaping mechanism, and the second guide block is slidably connected with the base; the second shaping mechanism is used for secondary bending of the product.

[0014] In a second aspect, the present application provides a shaping machine, comprising:

[0015] A working platform is provided with a conveying channel;

[0016] A stepping mechanism is arranged on the working platform, and the stepping mechanism is provided with a stepping gear that can enter the conveying channel and move the product in the conveying direction in an intermittent manner.

[0017] Cutting device, two sets of cutting knives are arranged on both sides of the conveying channel for cutting off the excess material on both sides of the product;

[0018] Chip electronic component pin shaping device arranged above the conveying channel for bending the pins on both sides of the product twice;

[0019] First driving mechanism for powering the cutting device and the chip electronic component pin shaping device.

[0020] According to one aspect of the present application, the stepping mechanism comprises a U-shaped seat, a feeding rocker arm, a first connecting rod, a second connecting rod, a third driving mechanism, a stepping base, a second rocker arm, a third connecting rod, a fourth driving mechanism, and a stepping rocker arm; the U-shaped seat is fixedly connected with the working platform, one end of the feeding rocker arm is rotatably connected with the U-shaped seat, the other end of the feeding rocker arm is rotatably connected with one end of the third driving mechanism, and the other end of the third driving mechanism is rotatably connected with the working platform; the feeding rocker arm is provided with a first U-shaped slot, one end of the first connecting rod is slidably arranged in the first U-shaped slot, the other end of the first connecting rod is rotatably connected with the second connecting rod, and the second connecting rod is connected with the stepping rocker arm to drive the stepping rocker arm to reciprocate along the conveying direction; one end of the second rocker arm is rotatably connected with the stepping base, and the other end of the second rocker arm is provided with a second U-shaped slot; one end of the fourth driving mechanism is slidably arranged in the second U-shaped slot, the other end of the fourth driving mechanism is rotatably connected with the working platform, one end of the third connecting rod is fixedly connected with the second rocker arm, the length direction of the third connecting rod is perpendicular to the rotation plane of the second rocker arm, and the other end of the third connecting rod is arranged on the stepping rocker arm to keep the stepping rocker arm in a horizontal state; one end of the stepping rocker arm is connected with the stepping gear.

[0021] According to one aspect of the present application, the first driving mechanism comprises a first cylinder, a first fixed plate, a second fixed plate, a first guide rod, and a second guide rod; one end of each of the first guide rod and the second guide rod is fixedly connected with the working platform, and the other end of each of the first guide rod and the second guide rod is fixedly connected with the first fixed plate; the first cylinder is arranged on the first fixed plate, the output shaft of the first cylinder passes through the first fixed plate to connect the second fixed plate, and both ends of the second fixed plate are slidably connected with the first guide rod and the second guide rod, respectively.

[0022] According to one aspect of the present application, the first driving mechanism further comprises a second cylinder, and the output end of the second cylinder passes through the second fixed plate to connect a first guide block of the chip electronic component pin shaping device.

[0023] According to an aspect of the present application, the cutting device comprises two sets of cutting knives, the two sets of cutting knives are arranged on the two sides of the conveying channel respectively, the cutting knife comprises a cutting upper knife and a cutting lower knife, one end of the cutting upper knife is connected with the second fixed plate, the other end of the one end of the cutting upper knife is slidably connected with the cutting lower knife, and one end of the cutting lower knife is connected with the working platform.

[0024] According to the scheme of the present application, at least the following technical effects are achieved:

[0025] According to the scheme of the present application, the pin shaping device for chip electronic components comprises a base, a first shaping mechanism and a first guide block, wherein the first guide block is slidably connected with the base, the lower end of the first guide block can abut against the upper end face of the product to fix the product, and the base can reciprocate along the length direction of the first guide block; the first shaping mechanism is provided with a first swing arm and a second swing arm, the first swing arm and the second swing arm are rotatably connected with the two sides of the base respectively; the lower end of the first swing arm is rotatably provided with a first shaping wheel, and the lower end of the second swing arm is provided with a second shaping wheel, the first shaping wheel and the second shaping wheel can exert pressure on the pins at the two ends of the product and bend the pins; in the present application, the two sides of the first guide block are respectively provided with first guide surfaces, the upper ends of the first swing arm and the second swing arm are provided with pre-tightening springs, so that the lower ends of the first swing arm and the second swing arm can keep a state of approaching each other, the first swing arm and the second swing arm are respectively provided with a first guide wheel and a second guide wheel, the first guide wheel and the second guide wheel can move on the first guide surfaces along with the lifting of the base, so as to control the movement trajectories of the first shaping wheel and the second shaping wheel, thereby reducing the relative sliding of the first shaping wheel and the second shaping wheel on the surface of the pins of the product, avoiding scratches on the surface of the pins by the first shaping wheel and the second shaping wheel, and providing processing precision and surface quality; in the present application, the first guide surfaces have an included angle α with the vertical surface, by controlling the included angle α within the range of 6°≤α≤10°, the movement trajectories of the first shaping wheel and the second shaping wheel can be controlled, so that the movement trajectories of the first shaping wheel and the second shaping wheel can approach the specified contact area and move within a small range, thereby simulating the scene when the pins of the product are bent by human hands, avoiding scratches on the surface of the pins by the first shaping wheel and the second shaping wheel, and providing processing precision and surface quality. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic view of the pin shaping device for chip electronic components of the present application;

[0027] Figure 2 It is a structural sectional view of the pin shaping device for chip electronic components of the present application;

[0028] Figure 3A partial structure schematic view of a pin shaping device for a chip electronic component of the present application;

[0029] Figure 4 A motion trajectory mechanism schematic view of a second shaping mechanism of the present application;

[0030] Figure 5 A structure schematic view of a shaping machine of the present application;

[0031] Figure 6 A partial structure schematic view of a pin shaping device for a chip electronic component of the present application; Figure 5 A partial structure enlarged schematic view of A of the pin shaping device for a chip electronic component of the present application;

[0032] Figure 7 A partial structure schematic view of a shaping machine of the present application;

[0033] Reference signs:

[0034] 100 - base;

[0035] 200 - first shaping mechanism. 210 - first swing arm, 220 - second swing arm, 230 - pre-tightening spring, 240 - first shaping wheel, 250 - second shaping wheel, 260 - first guide wheel, 270 - second guide wheel;

[0036] 300 - first guide block, 301 - first guide surface, 302 - second guide surface, 303 - third guide surface

[0037] 400 - second shaping mechanism;

[0038] 500 - work platform, 501 - conveying channel;

[0039] 600 - stepping mechanism, 610 - U-shaped seat, 620 - feeding swing arm, 621 - first U-shaped slot hole, 630 - first connecting rod, 640 - second connecting rod, 650 - third driving mechanism, 660 - stepping base, 670 - second swing arm, 671 - second U-shaped slot hole, 680 - third connecting rod, 690 fourth driving mechanism, 691 - stepping swing arm;

[0040] 700 - cutting device;

[0041] 800 - first driving mechanism, 810 - first air cylinder, 820 - first fixed plate, 830 - second fixed plate, 840 - first guide rod, 850 - second guide rod, 860 - second air cylinder. DETAILED DESCRIPTION

[0042] The present application will now be discussed with reference to the example embodiments. It should be understood that the discussed embodiments are only to enable those of ordinary skill in the art to better understand and thus implement the content of the present application, and are not intended to imply any limitation on the scope of the present application.

[0043] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment".

[0044] In this invention, the product is a chip tantalum capacitor. Chip tantalum capacitors are typically formed sequentially onto a lead frame during the pre-processing stage to form tantalum capacitor strips. Therefore, it is necessary to cut the metal strips on both sides and then bend the leads on both sides of the chip tantalum capacitor twice. It should be noted that this application targets not only chip tantalum capacitors, but also any electronic components with the same structure as the product in this application that require bending of the leads on both sides. All such electronic components are within the scope of protection of this application.

[0045] Figure 1 This schematically illustrates a chip electronic component lead shaping device according to an embodiment of the present invention. For example... Figure 1 and Figure 2As shown, the first aspect of the present application provides a kind of electronic component pin shaping device of slice, including, pedestal 100, first shaping mechanism 200 and first guide block 300, wherein first shaping mechanism 200 is provided with first swing arm 210, second swing arm 220, pre-tightening spring 230, first shaping wheel 240, second shaping wheel 250, first guide wheel 260, second guide wheel 270;First swing arm 210 and second swing arm 220 are respectively rotatably connected with the two sides of pedestal 100, one end of pre-tightening spring 230 is in contact with the upper end of first swing arm 210, the other end of pre-tightening spring 230 is in contact with the upper end of second swing arm 220;The lower end of first swing arm 210 is rotatably connected with first shaping wheel 240, and the lower end of second swing arm 220 is rotatably connected with second shaping wheel 250;First guide wheel 260 is rotatably connected with first swing arm 210, and is located between the rotation center of first swing arm 210 and first shaping wheel 240, second guide wheel 270 is rotatably connected with second swing arm 220, and is located between the rotation center of second swing arm 220 and second shaping wheel 250;First guide block 300 is slidably connected with pedestal 100, and the two sides of first guide block 300 are respectively provided with first guide surface 301, the lower end of first guide surface 301 is inclined along the center of first guide block 300, first guide surface 301 has angle α with vertical surface, 6 ° ≤ α ≤ 10 °.Specifically, in the embodiment, the first guide block 300 is in sliding connection with the base 100, the lower end of the first guide block 300 can abut against the upper end face of the product to fix the product, and the base 100 can reciprocate along the length direction of the first guide block 300; the first shaping mechanism 200 is provided with a first swing arm 210 and a second swing arm 220, the first swing arm 210 and the second swing arm 220 are respectively in rotary connection with the two sides of the base 100; the lower end of the first swing arm 210 is rotatably provided with a first shaping wheel 240, and the lower end of the second swing arm 220 is provided with a second shaping wheel 250, the first shaping wheel 240 and the second shaping wheel 250 can exert pressure on the pins at the two ends of the product and bend the pins; in the embodiment, the two sides of the first guide block 300 are respectively provided with a first guide surface 301, the upper ends of the first swing arm 210 and the second swing arm 220 are connected through a pre-tightening spring 230, so that the lower ends of the first swing arm 210 and the second swing arm 220 can keep a state of approaching each other, the first swing arm 210 and the second swing arm 220 are respectively provided with a first guide wheel 260 and a second guide wheel 270, the first guide wheel 260 and the second guide wheel 270 can move on the first guide surface 301 along with the lifting of the base 100, so as to control the motion track of the first shaping wheel 240 and the second shaping wheel 250, and further reduce the relative sliding of the first shaping wheel 240 and the second shaping wheel 250 on the surface of the pins of the product, and further reduce the rolling area of the first shaping wheel 240 and the second shaping wheel 250, so as to avoid scratches on the surface of the pins by the first shaping wheel 240 and the second shaping wheel 250, and provide processing precision and surface quality; in the embodiment, the first guide surface 301 has an included angle a with the vertical surface, by controlling the included angle a in the range of 6°≤a≤10°, specifically, a is 8° in the embodiment, by the design of the embodiment, the motion track of the first shaping wheel 240 and the second shaping wheel 250 can be controlled, so that the moving track of the first shaping wheel 240 and the second shaping wheel 250 can approach the specified contact area and move in a small range, specifically, in the embodiment, the first shaping mechanism 200 is a shaping structure used for the first time of bending, and the contact area is an area of 0.2mm to 0.5mm close to the edge of the pins of the product. At this time, the bending angle of the pins is 0° to 45°. By the design of the structure, the first shaping wheel 240 and the second shaping wheel 250 can simulate the scene when a person bends the pins of the product by hand. Avoiding large-area scratches on the surface of the pins by the first shaping wheel 240 and the second shaping wheel 250, and providing processing precision and surface quality.

[0046] In some embodiments of the present application, as Figure 3As shown, the lower end of the first guide surface 301 is provided with a second guide surface 302, the lower end of the second guide surface 302 is inclined along the center of the first guide block 300, the second guide surface 302 has an angle β with the vertical surface, and α≥β. In the embodiment, the first guide surface 301 can make the first shaping wheel 240 and the second shaping wheel 250 as small as possible in the range of contact when the first shaping wheel 240 and the second shaping wheel 250 bend the pin of the product for the first time. In the specific movement process, the first shaping wheel 240 and the second shaping wheel 250 move along the edge of the pin to the center of the product gradually under the guidance of the first guide surface 301, so that the product can be bent. Further, the second guide surface 302 is provided, and because the angle between the second guide surface 302 and the first guide surface 301 is different and α≥β, when the guide wheel moves downward on the first guide surface 301, the second guide surface 302 can be suddenly contacted after passing through part of the area of the first guide surface 301, and because the angle is reduced, the first shaping wheel 240 and the second shaping wheel 250 can return to the position close to the edge of the pin.

[0047] In some embodiments of the application, as shown in Figure 3 The second guide surface 302 is a vertical surface. In the embodiment, the first guide surface 301 can make the first shaping wheel 240 and the second shaping wheel 250 as small as possible in the range of contact when the first shaping wheel 240 and the second shaping wheel 250 bend the pin of the product for the first time. In the specific movement process, the first shaping wheel 240 and the second shaping wheel 250 move along the edge of the pin to the center of the product gradually under the guidance of the first guide surface 301, so that the product can be bent. Further, the second guide surface 302 is provided, and because the angle between the second guide surface 302 and the first guide surface 301 is different and α≥β, when the guide wheel moves downward on the first guide surface 301, the second guide surface 302 can be suddenly contacted after passing through part of the area of the first guide surface 301, and because the angle is reduced, the first shaping wheel 240 and the second shaping wheel 250 can return to the position close to the edge of the pin. At this time, the bending angle of the pin is 45° to 60°.

[0048] In some embodiments of the application, as shown in Figure 3As shown, the lower end of the second guide surface 302 is provided with a third guide surface 303, the lower end of the third guide surface 303 is inclined along the center of the first guide block 300, the third guide surface 303 has an angle γ with the vertical surface, the third guide surface 303 has an angle γ with the vertical surface, and α≥γ. In the specific movement process in the embodiment, the first shaping wheel 240 and the second shaping wheel 250 are gradually moved along the edge of the pin to the center of the product under the guidance of the first guide surface 301, so that the product can be bent, and the bending angle of the pin is 0° to 45° during the process; further, the second guide surface 302 is provided, and since the angle of the second guide surface 302 and the first guide surface 301 is different and the second guide surface 302 is a vertical surface, when the guide wheel moves downward on the first guide surface 301, it can suddenly contact the second guide surface 302 after passing through part of the area of the first guide surface 301, and since the second guide surface 302 is a vertical surface, the first shaping wheel 240 and the second shaping wheel 250 can quickly return to the initial position of the surface of the pin that initially contacts the product. At this time, the bending angle of the pin is 45° to 60°. Further, the third guide surface 303 is provided, the first shaping wheel 240 and the second shaping wheel 250 can repeat the movement trend of the first guide surface 301, the first shaping wheel 240 and the second shaping wheel 250 are gradually moved along the edge of the pin to the center of the product, so that the product is bent, and the bending angle of the pin is 60° to 95°. Through the design of the structure, the first bending can be divided into two times, and the second guide surface 302 can be quickly returned to the original position. Through the design of the structure, the bending effect is good, and the bending efficiency is high.

[0049] In some embodiments of the application, as Figure 4As shown, the second shaping mechanism 400 is arranged on the base 100 and located behind the first shaping mechanism 200, and the second guide block is in sliding connection with the base 100; the second shaping mechanism 400 is used for secondary bending of the product, wherein the width of the second guide block is smaller than the width of the first guide block 300, so that the second shaping mechanism 400 can perform secondary bending on the pin of the product, the contact area is an area of 0.2mm to 0.5mm close to the crease of the first bending of the product, the second guide block is provided with a first guide surface 301, a second guide surface 302 and a third guide surface 303, through the design of the structure, the rolling area of the first shaping wheel 240 and the second shaping wheel 250 of the second shaping mechanism 400 on the surface of the pin of the product can be reduced, and scratches on the surface of the pin caused by the first shaping wheel 240 and the second shaping wheel 250 can be avoided, thereby providing processing precision and surface quality; in the embodiment, the first guide surface 301 has an included angle α with the vertical surface, by controlling the included angle α in the range of 6°≤α≤10°, specifically, in the embodiment, α is 8°, through the design of the embodiment, the motion trajectory of the first shaping wheel 240 and the second shaping wheel 250 can be controlled, so that the moving trajectory of the first shaping wheel 240 and the second shaping wheel 250 can be close to the specified contact area and move in a small range, further, by arranging the second guide surface 302, since the angle of the second guide surface 302 and the first guide surface 301 is different and the second guide surface 302 is a vertical surface, when the guide wheel moves downward on the first guide surface 301, after passing through part of the area of the first guide surface 301, the second guide surface 302 can be suddenly contacted, and since the second guide surface 302 is a vertical surface, the first shaping wheel 240 and the second shaping wheel 250 can quickly return to the initial position of contacting the surface of the pin of the product. At this time, the bending angle of the pin is 45° to 60°. Further, by arranging the third guide surface 303, the first shaping wheel 240 and the second shaping wheel 250 can repeat the motion trend of the first guide surface 301, the first shaping wheel 240 and the second shaping wheel 250 gradually move along the edge of the pin to the center of the product, so that the product is bent, and the bending angle of the pin is 60° to 95°. Through the design of the structure, the first bending can be performed twice, and through the design of the second guide surface 302, the first shaping wheel 240 and the second shaping wheel 250 can be quickly returned. Through the design of the structure, the bending effect is good, and the bending efficiency is high.

[0050] In a second aspect, the present application provides a shaping machine, comprising:

[0051] a working platform 500, wherein the working platform 500 is provided with a conveying channel 501;

[0052] The stepping mechanism 600 is arranged on the working platform 500, and the stepping mechanism 600 is provided with a stepping gear that can enter the conveying channel 501 and move the product in the conveying direction in an intermittent manner.

[0053] The cutting device 700 is provided with two groups of cutting knives on both sides of the conveying channel 501, so as to cut off the excess part on both sides of the product.

[0054] The chip electronic component pin shaping device is arranged above the conveying channel 501 and is used for bending the pins on both sides of the product twice.

[0055] The first driving mechanism 800 is used for providing power for the cutting device 700 and the chip electronic component pin shaping device.

[0056] Specifically, as shown in the figure, Figure 5 The shaping machine is provided with a working platform 500, and in this embodiment, the tantalum capacitor strip is conveyed along the conveying channel 501, and the working platform 500 is sequentially provided with a cutting device 700 and a chip electronic component pin shaping device along the conveying direction of the conveying channel 501; one side of the conveying channel 501 is provided with a stepping mechanism 600, and the stepping mechanism 600 is provided with a stepping gear that can enter or leave the conveying channel 501, and the tooth structure of the stepping gear can be inserted into the gap in the tantalum capacitor strip to move the product in the conveying direction in an intermittent manner. The cutting device 700 is provided with two groups of cutting knives on both sides of the conveying channel 501, so as to cut off the metal strip on both sides of the tantalum capacitor strip; further, the chip electronic component pin shaping device is used for bending the pins on both sides of the product twice. Through the design of the structure, the degree of automation is high, the shaping is stable, and the shaping quality is good.

[0057] In some embodiments of the present application, the working platform 500 is provided with a first conveying block below the first shaping mechanism 200 of the chip electronic component pin shaping device, and the first conveying block is provided with a first conveying groove, and the product can move in the conveying groove. The width of the first conveying block corresponds to the total width of the creases on both sides of the product when it is bent once. The working platform 500 is provided with a second conveying block below the second shaping mechanism 400, and the width of the second conveying block is less than or equal to the minimum distance between the edges of the pins on both sides of the product after the product is bent twice. The second conveying block is provided with a plurality of negative pressure holes, and the lower surface of the product can be sucked by the negative pressure holes, so that the product can be kept in a centered state when it is bent twice.

[0058] In some embodiments of the present application, the working platform 500 is further provided with a mold plate. The cutting device 700 and the chip electronic component pin shaping device are both mounted on the mold plate to form an integrated structure, which is convenient for overall installation or replacement.

[0059] In some embodiments of the application, as Figure 6As shown, the stepping mechanism 600 comprises a U-shaped seat 610, a feeding rocker arm 620, a first connecting rod 630, a second connecting rod 640, a third driving mechanism 650, a stepping base 660, a second rocker arm 670, a third connecting rod 680, a fourth driving mechanism 690 and a stepping rocker arm 691; the U-shaped seat 610 is fixedly connected with the working platform 500, one end of the feeding rocker arm 620 is rotatably connected with the U-shaped seat 610, the other end of the feeding rocker arm 620 is rotatably connected with one end of the third driving mechanism 650, the other end of the third driving mechanism 650 is rotatably connected with the working platform 500; the feeding rocker arm 620 is provided with a first U-shaped slot hole 621, one end of the first connecting rod 630 is slidably arranged in the first U-shaped slot hole 621, the other end of the first connecting rod 630 is rotatably connected with the second connecting rod 640, the second connecting rod 640 is connected with the stepping rocker arm 691 to drive the stepping rocker arm 691 to reciprocate along the conveying direction; one end of the second rocker arm 670 is rotatably connected with the stepping base 660, the other end of the second rocker arm 670 is provided with a second U-shaped slot hole 671; one end of the fourth driving mechanism 690 is slidably arranged in the second U-shaped slot hole 671, the other end of the fourth driving mechanism 690 is rotatably connected with the working platform 500, one end of the third connecting rod 680 is fixedly connected with the second rocker arm 670, the length direction of the third connecting rod 680 is perpendicular to the rotation plane of the second rocker arm 670, the other end of the third connecting rod 680 is arranged on the stepping rocker arm 691 to keep the stepping rocker arm 691 always in a horizontal state; one end of the stepping rocker arm 691 is connected with the stepping pawl. Specifically, in working, the third driving mechanism 650 is elongated or shortened to drive the feeding rocker arm 620 to rotate on the U-shaped seat 610, the feeding rocker arm 620 drives one end of the first connecting rod 630 to slide back and forth in the first U-shaped slot hole 621 when rotating, thereby driving the second connecting rod 640 to slide back and forth, and further driving the stepping rocker arm 691 to reciprocate along the conveying direction; the fourth driving mechanism 690 is elongated or shortened to drive the second rocker arm 670 to rotate, the second rocker arm 670 can drive the stepping rocker arm 691 to make an arc motion when rotating, thereby driving the stepping pawl to enter or leave the conveying channel 501; in this embodiment, through the cooperative motion of the third driving mechanism 650 and the fourth driving, when the fourth driving mechanism 690 drives the stepping rocker arm 691 to swing to a high position, the stepping pawl enters the conveying channel 501 and is inserted into the gap in the tantalum capacitor strip, at this time, the third driving mechanism is started to drive the stepping rocker arm 691 to move forward, thereby pushing the tantalum capacitor strip forward through the stepping pawl; after pushing a unit distance, the fourth driving mechanism 690 swings to a low position, the stepping pawl leaves the conveying channel 501 and is out of contact with the tantalum capacitor strip, the third driving mechanism 650 is retracted backward to drive the stepping rocker arm 691 to return to the initial position. The cycle is repeated. Through the design of the structure, the return effect is good, the transmission is stable, and the mechanism can be prevented from being stuck. The intermittent motion of the tantalum capacitor strip is convenient to control.

[0060] In some embodiments of the present application, as shown in Figure 7 The first driving mechanism 800 includes a first cylinder 810, a first fixed plate 820, a second fixed plate 830, a first guide rod 840 and a second guide rod 850. One end of the first guide rod 840 and the second guide rod 850 is fixedly connected with the work platform 500, and the other end of the first guide rod 840 and the second guide rod 850 is fixedly connected with the first fixed plate 820. The first cylinder 810 is arranged on the first fixed plate 820, and the output shaft of the first cylinder 810 passes through the first fixed plate 820 to connect the second fixed plate 830. The two ends of the second fixed plate 830 are slidably connected with the first guide rod 840 and the second guide rod 850, respectively. In this embodiment, the first cylinder 810 is a master cylinder, which can drive the sheet electronic component pin shaping device and the cutting device 700 to move downward for work.

[0061] In some embodiments of the present application, the first driving mechanism 800 further includes a second cylinder 860, and the output end of the second cylinder 860 passes through the second fixed plate 830 to connect the first guide block 300 of the sheet electronic component pin shaping device. In this embodiment, when it is detected that the product has been bent, the second cylinder 860 is started to lift the sheet electronic component pin shaping device. The design of the double-cylinder can avoid repeatedly bending the product.

[0062] In some embodiments of the present application, the cutting device 700 includes two groups of cutting knives, which are arranged on the two sides of the conveying channel 501, respectively. The cutting knife includes a cutting upper knife and a cutting lower knife. One end of the cutting upper knife is connected with the second fixed plate 830, and the other end of the one end of the cutting upper knife is slidably connected with the cutting lower knife. One end of the cutting lower knife is connected with the work platform 500.

[0063] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. A device for trimming the leads of a chip electronic component, characterized in that it comprises: The device comprises: a base; a first shaping mechanism, which is provided with a first swing arm, a second swing arm, a pre-tightening spring, a first shaping wheel, a second shaping wheel, a first guide wheel and a second guide wheel; the first swing arm and the second swing arm are respectively rotationally connected to the two sides of the base, one end of the pre-tightening spring is in abutment with the upper end of the first swing arm, the other end of the pre-tightening spring is in abutment with the upper end of the second swing arm; the lower end of the first swing arm is rotationally connected to the first shaping wheel, and the lower end of the second swing arm is rotationally connected to the second shaping wheel; the first guide wheel is rotationally connected to the first swing arm and is located between the rotation center of the first swing arm and the first shaping wheel, and the second guide wheel is rotationally connected to the second swing arm and is located between the rotation center of the second swing arm and the second shaping wheel; a first guide block, which is slidingly connected to the base; the two sides of the first guide block are respectively provided with a first guide surface, the lower end of the first guide surface is inclined along the center of the first guide block, and the first guide surface has an angle α with a vertical surface, 6°≤α≤10°; the lower end of the first guide surface is provided with a second guide surface, the lower end of the second guide surface is inclined along the center of the first guide block, and the second guide surface has an angle β with the vertical surface, wherein α≥β; the lower end of the second guide surface is provided with a third guide surface, the lower end of the third guide surface is inclined along the center of the first guide block, and the third guide surface has an angle γ with the vertical surface, wherein α≥γ; the device further comprises a second shaping mechanism and a second guide block; the second shaping mechanism is arranged on the base and located behind the first shaping mechanism, and the second guide block is slidingly connected to the base; the second shaping mechanism is used for secondary bending of the product.

2. The chip electronic component lead shaping device according to claim 1, wherein The second guide surface is a vertical surface.

3. A trimmer comprising the chip electronic component pin shaping apparatus of claim 1, characterized by The device comprises: a working platform, which is provided with a conveying channel; a stepping mechanism, which is arranged on the working platform and is provided with a stepping pawl; the stepping pawl can enter the conveying channel and move the product in the conveying direction in an intermittent manner; a cutting device, which is provided with two groups of cutting knives on the two sides of the conveying channel, so as to cut off the excess material on the two sides of the product; a chip electronic component pin shaping device, which is arranged above the conveying channel and is used for twice bending the pins on the two sides of the product; a first driving mechanism, which is used for providing power for the cutting device and the chip electronic component pin shaping device.

4. The shaping machine of claim 3, wherein The step mechanism comprises a U-shaped seat, a feeding rocker arm, a first connecting rod, a second connecting rod, a third driving mechanism, a step base, a second rocker arm, a third connecting rod, a fourth driving mechanism, and a step rocker arm; the U-shaped seat is fixedly connected with the work platform, one end of the feeding rocker arm is rotatably connected with the U-shaped seat, the other end of the feeding rocker arm is rotatably connected with one end of the third driving mechanism, and the other end of the third driving mechanism is rotatably connected with the work platform; the feeding rocker arm is provided with a first U-shaped slot, one end of the first connecting rod is slidably arranged in the first U-shaped slot, the other end of the first connecting rod is rotatably connected with the second connecting rod, the second connecting rod is connected with the step rocker arm to drive the step rocker arm to reciprocate along the conveying direction; one end of the second rocker arm is rotatably connected with the step base, and the other end of the second rocker arm is provided with a second U-shaped slot; one end of the fourth driving mechanism is slidably arranged in the second U-shaped slot, the other end of the fourth driving mechanism is rotatably connected with the work platform, one end of the third connecting rod is fixedly connected with the second rocker arm, the length direction of the third connecting rod is perpendicular to the rotation plane of the second rocker arm, and the other end of the third connecting rod is arranged on the step rocker arm to keep the step rocker arm in a horizontal state; one end of the step rocker arm is connected with the step gear teeth.

5. The shaping machine of claim 3, wherein The first driving mechanism comprises a first cylinder, a first fixed plate, a second fixed plate, a first guide rod, and a second guide rod; one end of the first guide rod and one end of the second guide rod are fixedly connected with the work platform, respectively, and the other end of the first guide rod and the other end of the second guide rod are fixedly connected with the first fixed plate, respectively; the first cylinder is arranged on the first fixed plate, the output shaft of the first cylinder passes through the first fixed plate to connect the second fixed plate, and both ends of the second fixed plate are slidably connected with the first guide rod and the second guide rod, respectively.

6. The shaping machine of claim 5, wherein The first driving mechanism further comprises a second cylinder, and the output end of the second cylinder passes through the second fixed plate to connect the sheet electronic component pin shaping device.

7. The shaping machine of claim 6, wherein The cutting device comprises two groups of cutting knives, the two groups of cutting knives are arranged on the two sides of the conveying channel, respectively, the cutting knife comprises a cutting upper knife and a cutting lower knife, one end of the cutting upper knife is connected with the second fixed plate, the other end of one end of the cutting upper knife is slidably connected with the cutting lower knife, and one end of the cutting lower knife is connected with the work platform.

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