Pin shaping and shearing apparatus for flyback power supply

Abstract

The utility model discloses a pin shaping and shearing equipment of flyback power supply, including base, the lower end all around of base is provided with the foot prop, the upper end one side of base is provided with the movable slot, the inner wall sliding connection of movable slot has the shaping seat, the upper end one side of base is fixedly connected with the locating block, the upper end one side of base is fixedly connected with the side plate, the upper end of side plate is fixedly connected with the shaping mechanism, the upper end other side of base is fixedly connected with the shearing mechanism. The shaping mechanism that can make equipment can be accurate shaping operation to the pin of flyback power supply to satisfy the requirement of pin coplanarity, avoid the problem that the leakage inductance increases or the safety distance is insufficient, through the shearing mechanism that sets up can make equipment can be accurate shearing operation to the pin of flyback power supply to satisfy the requirement of pin length, wherein, through the hydraulic cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of pin shaping and cutting technology, specifically to a pin shaping and cutting device for a flyback power supply. Background Technology

[0002] Flyback power supplies are widely used in low-to-medium power AC-DC conversion (2 W–100 W range). Their key components, such as transformers, rectifier diodes, and output capacitors, typically need to be mounted vertically or horizontally on the PCB. The transformer leads bear the brunt of high current and determine the primary-secondary safety distance; deviations in lead coplanarity directly lead to increased leakage inductance or insufficient safety clearance. The lead length and bending angle of the output diodes and capacitors affect the height of the heatsink and electrolytic capacitors, and must be precisely formed in one go; otherwise, rework becomes difficult. Therefore, lead shaping must simultaneously meet the triple constraints of electrical performance, safety clearance, and thermal design.

[0003] According to patent document CN102172742A, a device for shaping and cutting optical device leads is disclosed, which consists of a pneumatic unit, a structural unit, a shaping unit, and a lead-cutting unit. The pneumatic unit includes a hand-operated valve, a large air cylinder, and a small air cylinder. The hand-operated valve is connected to the large air cylinder and the small air cylinder through a threaded tee and an air pipe. The structural unit includes a front support, a guide rail, a middle support, and a panel. A groove is formed on the upper surface of the panel. The front support, guide rail, middle support, and panel are connected together to form a rectangular chip-receiving cavity.

[0004] Currently, the pin shaping and cutting equipment for traditional flyback power supplies is all manually operated by workers. Not only does the pin cutting rely on feel, resulting in inconsistent cutting lengths, but the shaping process also causes the pins to be non-perpendicular to the upper surface of the intelligent power module, producing defective or scrap products. At the same time, the processing efficiency is low, the labor cost is high, and it does not meet the usage requirements. Utility Model Content

[0005] The purpose of this invention is to provide a pin shaping and cutting device for flyback power supplies, in order to solve the problems mentioned in the background art. Currently, the pin shaping and cutting devices for traditional flyback power supplies are all manually operated by workers. Not only do they rely on touch when cutting the pins, resulting in inconsistent cutting lengths, but the shaping process also causes the pins to be non-perpendicular to the upper surface of the intelligent power module, producing defective or scrap products. At the same time, the processing efficiency is low, the labor cost is high, and the requirements of use are not met.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a base is included, with foot supports arranged around the lower end of the base, a movable groove arranged on one side of the upper end of the base, a shaping seat slidably connected to the inner wall of the movable groove, a positioning block fixedly connected to one side of the upper end of the base, a side plate fixedly connected to one side of the upper end of the base, a shaping mechanism fixedly connected to the upper end of the side plate, and a shearing mechanism fixedly connected to the other side of the upper end of the base.

[0007] The shaping mechanism includes a support plate, the lower end of which is fixedly connected to the upper end of a side plate. A hydraulic cylinder is provided at the upper end of the support plate. Guide rods are provided at both the front and rear ends of the support plate. A lifting plate is fixedly connected to the telescopic end of the hydraulic cylinder. An installation groove is provided at the lower end of the lifting plate. A motor is detachably connected to one side of the lifting plate. A screw is driven by the output shaft of the motor. A shaping block is threadedly connected to the outer wall of the screw. Sliding rods are slidably connected to both sides of the shaping block. A pointer is fixedly connected to the front end of the shaping block. Scale lines are fixedly connected to both sides of the front end of the lifting plate.

[0008] Preferably, the upper end of the support plate is detachably connected to the lower end of the hydraulic cylinder, and the front and rear ends of the inner wall of the support plate are slidably connected to the outer wall of the guide rod.

[0009] Preferably, there are two guide rods, both of which are fixedly connected to the front and rear sides of the upper end of the lifting plate.

[0010] Preferably, the upper end of the foot support is fixedly connected to the lower end of the base around the perimeter, and the outer wall of the movable groove is embedded and connected to one side of the upper end of the base.

[0011] Preferably, the shearing mechanism includes a fixed frame, the lower end of which is fixedly connected to the other side of the upper end of the base. A second hydraulic cylinder is provided at the upper end of the fixed frame. A second guide rod is provided at the top of the inner wall of the fixed frame. Clamping seats are movably connected to the top and bottom of the inner wall of the fixed frame. Limiting grooves are provided on both sides of the clamping seats. Limiting rods are fixedly connected to both sides of the inner wall of the fixed frame. Telescopic rods are fixedly connected to the top and bottom walls of the inner wall of the fixed frame. An opening is provided through the middle part of the clamping seat. A shearing seat is fixedly connected to the bottom wall of the inner wall of the fixed frame. A shearing blade is fixedly connected to the telescopic end of the second hydraulic cylinder.

[0012] Preferably, the upper end of the fixing frame is detachably connected to the lower end of the hydraulic cylinder two, and the top of the inner wall of the fixing frame is slidably connected to the outer wall of the guide rod two.

[0013] Preferably, one end of the telescopic rod is fixedly connected to the inner top and bottom walls of the fixed frame, and the telescopic end of the telescopic rod is fixedly connected to the upper periphery of the clamp.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The shaping mechanism enables the equipment to precisely shape the pins of the flyback power supply to meet pin coplanarity requirements and avoid problems such as increased leakage inductance or insufficient safety clearance. Specifically, a hydraulic cylinder drives a lifting plate to move up and down, and a shaping block at the lower end of the lifting plate can clamp and shape the pins. At the same time, a motor drives a screw to rotate, causing the shaping block to move left and right on a slide bar. Through the coordination of pointers and scale lines, the position and degree of shaping can be precisely controlled to ensure that the shaped pins are perpendicular to the upper surface of the intelligent power module, thereby improving product quality.

[0016] 2. The shearing mechanism enables the equipment to precisely cut the pins of the flyback power supply to meet the pin length requirements. A hydraulic cylinder drives the shearing blade to move up and down to cut the pins. Simultaneously, the clamp inside the fixed frame, through the action of a telescopic rod, holds the pin in place, ensuring it doesn't wobble during cutting and improving accuracy. Furthermore, the guide rod and limit rod further ensure the stability of the clamp during movement, preventing the production of defective or scrap products. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the shaping mechanism structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the shearing mechanism of this utility model;

[0020] Figure 4 This is a three-dimensional side view of the present invention.

[0021] In the diagram: 1. Base; 2. Foot support; 3. Movable groove; 4. Shaping seat; 5. Positioning block; 6. Side plate; 7. Shaping mechanism; 8. Shearing mechanism; 71. Support plate; 72. Hydraulic cylinder one; 73. Guide rod one; 74. Lifting plate; 75. Mounting groove; 76. Motor; 77. Screw; 78. Shaping block; 79. Slide rod; 710. Pointer; 711. Scale line; 81. Fixed frame; 82. Hydraulic cylinder two; 83. Guide rod two; 84. Clamp; 85. Limiting groove; 86. Limiting rod; 87. Telescopic rod; 88. Opening; 89. Shearing seat; 810. Shearing blade. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , Figure 2 and Figure 4 This utility model provides a technical solution: a pin shaping and shearing device for a flyback power supply, including a base 1, with foot supports 2 arranged around the lower end of the base 1, a movable groove 3 arranged on one side of the upper end of the base 1, a shaping seat 4 slidably connected to the inner wall of the movable groove 3, a positioning block 5 fixedly connected to one side of the upper end of the base 1, a side plate 6 fixedly connected to one side of the upper end of the base 1, a shaping mechanism 7 fixedly connected to the upper end of the side plate 6, and a shearing mechanism 8 fixedly connected to the other side of the upper end of the base 1. The shaping mechanism 7 includes a support plate 71, the lower end of the support plate 71 fixedly connected to the upper end of the side plate 6, a hydraulic cylinder 72 arranged on the upper end of the support plate 71, guide rods 73 arranged at both the front and rear ends of the support plate 71, and a lifting plate 74 fixedly connected to the telescopic end of the hydraulic cylinder 72. The lower end of 74 is provided with an installation groove 75. A motor 76 is detachably connected to one side of the lifting plate 74. The output shaft of the motor 76 is driven by a screw 77. A shaping block 78 is threadedly connected to the outer wall of the screw 77. A slide rod 79 is slidably connected to both sides of the shaping block 78. A pointer 710 is fixed to the front end of the shaping block 78. Scale lines 711 are fixed to both sides of the front end of the lifting plate 74. The upper end of the support plate 71 is detachably connected to the lower end of the hydraulic cylinder 72. The front and rear ends of the inner wall of the support plate 71 are slidably connected to the outer wall of the guide rod 73. There are two guide rods 73, both of which are fixed to the front and rear sides of the upper end of the lifting plate 74. The upper end of the foot support 2 is fixed to the lower end of the base 1 around the perimeter. The outer wall of the movable groove 3 is embedded and connected to one side of the upper end of the base 1.

[0024] Stable support feet 2 are evenly arranged around the lower end of the base 1 to ensure the equipment remains stable during operation. A movable groove 3 is provided on one side of the upper end of the base 1. The inner wall of the movable groove 3 is connected to the shaping seat 4 via a sliding connection, allowing the shaping seat 4 to move flexibly within the movable groove 3. A positioning block 5 is also firmly fixed on the same side of the upper end of the base 1 for precise positioning of the pin to be processed. In addition, a side plate 6 is fixedly connected to the same side of the upper end of the base 1, and the upper end of the side plate 6 is firmly connected to the shaping mechanism 7. On the other side of the upper end of the base 1, a shearing mechanism 8 is fixedly connected for precise shearing of the pin. The lower end of the support plate 71 is firmly connected to the upper end of the side plate 6. A hydraulic cylinder 72 is provided at the upper end of the support plate 71 to provide lifting power. Guide rods 73 are provided at both the front and rear ends of the support plate 71 to ensure the smooth movement of the lifting plate 74. A lifting plate 74 is fixedly connected to the telescopic end of the hydraulic cylinder 72 for lifting. The lower end of the plate 74 is provided with a mounting groove 75 for the horizontal movement of the shaping block 78. A motor 76 is detachably connected to one side of the lifting plate 74. The output shaft of the motor 76 is connected to the screw 77 through a transmission device. A shaping block 78 is threadedly connected to the outer wall of the screw 77. The two sides of the shaping block 78 are connected to the slide rod 79 through a sliding connection to ensure the flexible movement of the shaping block 78. A pointer 710 is fixedly connected to the front end of the shaping block 78 for indicating the position. Scale lines 711 are fixedly connected to both sides of the front end of the lifting plate 74 to facilitate precise adjustment by the operator. The upper end of the support plate 71 is detachably connected to the lower end of the hydraulic cylinder 72. The front and rear ends of the inner wall of the support plate 71 are connected to the outer wall of the guide rod 73 through a sliding connection. There are two guide rods 73, both of which are firmly connected to the front and rear sides of the upper end of the lifting plate 74. The upper end of the foot support 2 is fixedly connected to the lower end of the base 1 around the perimeter to ensure the stability of the entire equipment.

[0025] Please see Figure 1 , Figure 3 and Figure 4The shearing mechanism 8 includes a fixed frame 81, the lower end of which is fixedly connected to the other side of the upper end of the base 1. A hydraulic cylinder 82 is provided at the upper end of the fixed frame 81. A guide rod 83 is provided at the top of the inner wall of the fixed frame 81. A clamping seat 84 is movably connected to the top and bottom of the inner wall of the fixed frame 81. Limiting grooves 85 are provided on both sides of the clamping seat 84. Limiting rods 86 are fixedly connected to both sides of the inner wall of the fixed frame 81. Telescopic rods 87 are fixedly connected to the top and bottom walls of the inner wall of the fixed frame 81. An opening 88 is provided through the middle part of the clamp 84. A shear seat 89 is fixedly connected to the inner bottom wall of the fixed frame 81. A shear blade 810 is fixedly connected to the telescopic end of the hydraulic cylinder 82. The upper end of the fixed frame 81 is detachably connected to the lower end of the hydraulic cylinder 82. The top of the inner wall of the fixed frame 81 is slidably connected to the outer wall of the guide rod 83. One end of the telescopic rod 87 is fixedly connected to the inner top wall and bottom wall of the fixed frame 81, and the telescopic end of the telescopic rod 87 is fixedly connected to the upper end of the clamp 84 around the perimeter.

[0026] A hydraulic cylinder 82 is installed at the upper end of the fixed frame 81 to provide power for the shearing action. A guide rod 83 is provided at the top of the inner wall of the fixed frame 81 to guide and support the movement of the shearing blade 810. In addition, clamps 84 are movably connected to the top and bottom of the inner wall of the fixed frame 81. These clamps 84 can move freely within a certain range to adapt to different shearing needs. Limiting grooves 85 are provided on both sides of the clamps 84. The function of these limiting grooves 85 is to limit the range of movement of the clamps 84 and ensure that they move within a predetermined trajectory. Limiting rods 86 are firmly fixed to both sides of the inner wall of the fixed frame 81. These limiting rods 86 further enhance the stability of the clamps 84. Telescopic rods 87 are firmly fixed to the top and bottom walls of the inner wall of the fixed frame 81. The setting of these telescopic rods 87 makes the clamps The clamp 84 is adjustable in the vertical direction to accommodate materials of different thicknesses. An opening 88 is provided in the middle of the clamp 84 to accommodate and fix the material to be cut. A shearing seat 89 is fixed to the inner bottom wall of the fixed frame 81. The shearing seat 89 is the supporting base for the shearing blade 810. The telescopic end of the hydraulic cylinder 82 is firmly fixed to the shearing blade 810. Through the action of the hydraulic cylinder 82, the shearing blade 810 can move up and down to complete the shearing action. The upper end of the fixed frame 81 and the lower end of the hydraulic cylinder 82 are detachably connected for easy maintenance and replacement. The top of the inner wall of the fixed frame 81 is slidably connected to the outer wall of the guide rod 83 to ensure that the guide rod 83 can move smoothly within the fixed frame 81, forming a stable support structure to ensure the accuracy and efficiency of the shearing process.

[0027] Working principle: First, the flyback power supply pin to be processed is fixed on the shaping base 4 by the positioning block 5. Then, the shaping mechanism 7 performs a precise shaping operation on the pin. During shaping, hydraulic cylinder 72 is activated, and the extension end of hydraulic cylinder 72 drives the lifting plate 74 to move up and down. The shaping block 78 at the lower end of the lifting plate 74 clamps the pin to be shaped. At the same time, motor 76 is activated, and the output shaft of motor 76 drives the screw 77 to rotate, causing the shaping block 78 to move left and right on the slide rod 79. Through the cooperation of the pointer 710 at the front end of the shaping block 78 and the scale lines 711 on both sides of the front end of the lifting plate 74, the position and degree of shaping can be precisely controlled until the pin reaches the desired shape. To achieve the required coplanarity, after shaping, the shaping seat 4, along with the shaped pin, is moved to the underside of the shearing mechanism 8 via a sliding connection on the inner wall of the movable groove 3. Then, the shearing mechanism 8 is activated to perform a precise shearing operation on the pin. During shearing, the second hydraulic cylinder 82 is activated, and the telescopic end of the second hydraulic cylinder 82 drives the shearing blade 810 to move up and down to achieve the shearing of the pin. At the same time, the clamp 84 inside the fixed frame 81 holds the pin through the action of the telescopic rod 87, ensuring that the pin does not shake during the shearing process and improving the shearing accuracy. The entire operation process is precise and efficient, greatly improving the processing efficiency and product quality of flyback power supply pin shaping and shearing.

[0028] Then, the operator can easily adjust the position and angle of the pins to ensure they are perpendicular to the upper surface of the intelligent power module, avoiding defects or scrap caused by pins not being perpendicular. Meanwhile, the pointer 710 and scale line 711 design in the shaping mechanism 7 allow workers to precisely control the position and degree of shaping, further improving product quality and consistency. During the shearing process, the shearing mechanism 8 stably clamps the pins, preventing them from shaking and ensuring shearing accuracy. Furthermore, the driving mechanism of the hydraulic cylinder 82 enables the shearing blade 810 to complete the shearing action quickly and accurately. This greatly improves processing efficiency. In addition, it has good adaptability and flexibility. The shaping seat 4 can move flexibly in the movable slot 3 to adapt to pins of different sizes. At the same time, the setting of the clamp 84 and the telescopic rod 87 also enables the device to clamp and cut materials of different thicknesses, further expanding the application range of the device. Through precise shaping and cutting operations, the processing accuracy and efficiency of flyback power supply pins are improved, labor costs are reduced, and the usage requirements are met. The above is the working process of the entire device. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pin shaping and shearing device for a flyback power supply, comprising a base (1), characterized in that: The base (1) is provided with foot supports (2) around its lower end. The base (1) is provided with a movable groove (3) on one side of its upper end. A shaping seat (4) is slidably connected to the inner wall of the movable groove (3). A positioning block (5) is fixedly connected to one side of the upper end of the base (1). A side plate (6) is fixedly connected to one side of the upper end of the base (1). A shaping mechanism (7) is fixedly connected to the upper end of the side plate (6). A shearing mechanism (8) is fixedly connected to the other side of the upper end of the base (1). The shaping mechanism (7) includes a support plate (71), the lower end of which is fixedly connected to the upper end of the side plate (6). A hydraulic cylinder (72) is provided at the upper end of the support plate (71). Guide rods (73) are provided at both the front and rear ends of the support plate (71). A lifting plate (74) is fixedly connected to the telescopic end of the hydraulic cylinder (72). An installation groove (75) is provided at the lower end of the lifting plate (74). A motor (76) is detachably connected to one side of the lifting plate (74). A screw (77) is drivenly connected to the output shaft of the motor (76). A shaping block (78) is threadedly connected to the outer wall of the screw (77). A slide rod (79) is slidably connected to both sides of the shaping block (78). A pointer (710) is fixedly connected to the front end of the shaping block (78). Scale lines (711) are fixedly connected to both sides of the front end of the lifting plate (74).

2. The pin shaping and trimming device for a flyback power supply according to claim 1, characterized in that: The upper end of the support plate (71) is detachably connected to the lower end of the hydraulic cylinder (72), and the front and rear ends of the inner wall of the support plate (71) are slidably connected to the outer wall of the guide rod (73).

3. The pin shaping and shearing device for a flyback power supply according to claim 2, characterized in that: The guide rod (73) is provided in two parts, and both are fixedly connected to the front and rear sides of the upper end of the lifting plate (74).

4. The pin shaping and shearing device for a flyback power supply according to claim 1, characterized in that: The upper end of the foot support (2) is fixedly connected to the lower end of the base (1) around the perimeter, and the outer wall of the movable groove (3) is embedded and connected to one side of the upper end of the base (1).

5. The pin shaping and shearing device for a flyback power supply according to claim 1, characterized in that: The shearing mechanism (8) includes a fixed frame (81), the lower end of the fixed frame (81) is fixedly connected to the other side of the upper end of the base (1), a hydraulic cylinder (82) is provided at the upper end of the fixed frame (81), a guide rod (83) is provided at the top of the inner wall of the fixed frame (81), a clamp (84) is movably connected to the top and bottom of the inner wall of the fixed frame (81), a limit groove (85) is opened on both sides of the clamp (84), a limit rod (86) is fixedly connected to both sides of the inner wall of the fixed frame (81), a telescopic rod (87) is fixedly connected to the top and bottom walls of the inner wall of the fixed frame (81), an opening (88) is opened through the middle part of the clamp (84), a shearing seat (89) is fixedly connected to the bottom wall of the inner wall of the fixed frame (81), and a shearing blade (810) is fixedly connected to the telescopic end of the hydraulic cylinder (82).

6. The pin shaping and trimming device for a flyback power supply according to claim 5, characterized in that: The upper end of the fixed frame (81) is detachably connected to the lower end of the hydraulic cylinder (82), and the top of the inner wall of the fixed frame (81) is slidably connected to the outer wall of the guide rod (83).

7. The pin shaping and trimming device for a flyback power supply according to claim 5, characterized in that: One end of the telescopic rod (87) is fixedly connected to the inner top and bottom walls of the fixed frame (81), and the telescopic end of the telescopic rod (87) is fixedly connected to the upper periphery of the clamp (84).

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