A rectifier bridge pin bending device

Abstract

This application provides a rectifier bridge pin bending device, belonging to the field of rectifier bridge manufacturing technology. The device includes: a horizontally arranged support plate with a vertically positioned support column at its bottom; a conveying track including two strip plates mounted above the support plate; limiting strips at the lower ends of the opposing surfaces of the two strip plates; a clamping groove on the end face of the strip plates; a clamping mechanism located at the end of the strip plates, including a pair of clamping pieces facing the length direction of the strip plates and movable along the length direction of the strip plates; a stop mechanism including a mounting rod vertically located on one side of the end of the strip plates, with a stop rod rotatably connected to the upper end of the mounting rod; one end of the stop rod rotates away from the end face of the strip plate before the clamping end of the clamping piece enters the clamping groove, and rotates to stop at the end of the strip plate after the clamping end of the clamping piece moves out of the clamping groove; and a bending mechanism located below the clamping mechanism for bending the pins of the rectifier bridge. The device can effectively improve the bending efficiency of the rectifier bridge pins.

Description

Technical Field

[0001] This application belongs to the field of rectifier bridge manufacturing technology, and in particular relates to a rectifier bridge pin bending device. Background Technology

[0002] As a power component, the rectifier bridge is widely used in various power supply devices. In switching power supplies, the rectifier bridge is used to rectify and filter AC power into DC power. The performance of the rectifier bridge directly affects the reliability of the switching power supply, so quality control of the rectifier bridge is crucial. One of the production processes of the rectifier bridge is to bend its outer pins so that the rectifier bridge can be connected to other components or circuit boards. Currently, the pin bending method for rectifier bridges packaged in GBU and KBJ packages mainly involves operators taking the rectifier bridge package one by one, placing its pins between two molding blocks, and then bringing the two molding blocks together to bend the pins. This pin bending method requires manual loading, which is cumbersome and not conducive to improving the bending efficiency of the rectifier bridge pins. Utility Model Content

[0003] To address the shortcomings of the prior art, this application provides a rectifier bridge pin bending device, which can effectively improve the bending efficiency of the rectifier bridge pins.

[0004] To achieve the above objectives, the present invention employs the following technology: A rectifier bridge pin bending device, comprising: The support plate is horizontally installed, and its bottom is vertically supported by columns; A conveying track for conveying a rectifier bridge includes two strip plates mounted above the support plate along its length; the strip plates are both perpendicular to the support plate, and the distance between the two strip plates is equal to the thickness of the rectifier bridge; the lower ends of the opposite faces of the two strip plates are provided with limiting strips arranged along the length direction; and the end faces of the strip plates are provided with clamping grooves along the length direction. The clamping mechanism is located at the end of the strip plate. It includes a pair of clamping plates that are oriented toward the length direction of the strip plate and movable along the length direction of the strip plate. The two clamping plates are used to enter the corresponding clamping slots to clamp the rectifier bridge. The material blocking mechanism includes a mounting rod vertically disposed on one side of the end of the strip plate, with a stop rod rotatably connected to the upper end of the mounting rod, and its rotation axis arranged along the length direction of the strip plate; one end of the stop rod rotates away from the end face of the strip plate before the clamping end of the clamping piece enters the clamping groove, and rotates to block the end of the strip plate after the clamping end of the clamping piece moves out of the clamping groove. The bending mechanism, located below the clamping mechanism, is used to bend the pins of the rectifier bridge.

[0005] The beneficial effects of this utility model are as follows: By setting up the baffle and strip plate, one end of the baffle can be moved out of the end of the strip plate or blocked to ensure that the clamping plate can effectively clamp the rectifier bridge; at the same time, it can also ensure that the clamping plate can stably clamp the rectifier bridge and transport it between the two forming blocks for bending operation, which effectively improves the transfer efficiency of the rectifier bridge between the strip plate and the clamping plate, thereby improving the production efficiency of the rectifier bridge. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the main structure of the device according to an embodiment of this application.

[0007] Figure 2 yes Figure 1 A magnified view of part A in the middle.

[0008] Figure 3 This is a side view of the device according to an embodiment of this application.

[0009] Figure 4 This is a top view of the device according to an embodiment of this application.

[0010] Figure 5 yes Figure 4 A magnified view of part B in the middle.

[0011] Reference numerals: 1-Bearing plate, 11-Support column, 12-First linear mechanism, 13-Mounting platform, 14-Bracket, 15-Discharge hole, 2-Conveying track, 21-Strip plate, 22-Limiting strip, 23-Clamping groove, 3-Clamping mechanism, 31-Clamping piece, 32-Mounting plate, 33-Support plate, 34-Guide rod, 35-Matching plate, 4-Blocking mechanism, 41-Mounting rod, 42-Blocking rod, 43-Matching block, 44-Elastic element, 5-Bending mechanism, 51-Forming block. Detailed Implementation

[0012] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0013] This application provides a package pin bending device, such as... Figures 1-5As shown, the device includes a support plate 1, a conveying track 2, a clamping mechanism 3, a material-stopping mechanism 4, and a bending mechanism 5. The bending device is mainly used to bend the individual rectifier bridge package pins after punching. Another bending method is to bend the entire lead frame (containing multiple packages to be punched) at once and then punch it into individual packages. Although this method is efficient, the bending die structure is complex and the cost is high. Moreover, when bending the entire frame, local stress may cause the frame to twist, affecting the punching accuracy. The bending device described above can avoid the problem of bending the entire lead frame while ensuring bending efficiency.

[0014] like Figure 1 and Figure 2 As shown, the support plate 1 is horizontally arranged, and its bottom is vertically supported by a support column 11 for supporting the support plate 1 on the workbench; the support plate 1 is also provided with a mounting platform 13 and a material dropping hole 15. The conveying track 2 includes two strip plates 21, which are mounted on the mounting platform 13 above the support plate 1 along the length direction of the support plate 1 by a bracket 14. The strip plates 21 are both perpendicular to the support plate 1, and the distance between the two strip plates 21 is equal to the thickness of the package; the lower end of the opposite face of the two strip plates 21 is provided with a limiting strip 22 arranged along the length direction; the end face of the strip plate 21 is provided with a clamping groove 23 along the length direction, and the clamping groove 23 is located between the upper and lower end faces of the strip plate 21.

[0015] like Figures 1-5 As shown, the clamping mechanism 3 is located at the end of the strip plate 21. It includes a pair of clamping pieces 31 that are oriented toward the length direction of the strip plate 21 and move along the length direction of the strip plate 21. The two clamping pieces 31 correspond to the two clamping slots 23 respectively and are used to enter the corresponding clamping slots 23 to clamp the rectifier bridge.

[0016] like Figures 1-3 As shown, the material blocking mechanism 4 includes a mounting rod 41 vertically disposed on one side of the end of the strip plate 21. A stop rod 42 is rotatably connected to the upper end of the mounting rod 41, and its rotation axis is arranged along the length direction of the strip plate 21. Before the clamping piece 31 enters the clamping groove 23, one end of the stop rod 42 rotates away from the end face of the strip plate 21. After the clamping piece 31 moves out of the clamping groove 23, it rotates to block the end of the strip plate 21. The bending mechanism 5 is disposed below the clamping mechanism 3. It includes two forming blocks 51 disposed below the clamping piece 31. Both forming blocks 51 are L-shaped and centrally symmetrical. The two forming blocks 51 are synchronously moved towards each other along the width direction of the bearing plate 1 and are used to bend the rectifier bridge pins. The material dropping hole 15 is located below the two forming blocks 51.

[0017] When applying, such as Figures 1-5As shown, the beginning of the two strip plates 21, i.e. the end where the rectifier bridge enters, is connected to the outlet of the vibrating feeder. The vibrating feeder sequentially transports multiple rectifier bridges to the conveying track 2. The subsequent rectifier bridges are pushed along the length of the strip plate 21. At this time, the rectifier bridge package is located between the two strip plates 21 and is arranged sequentially along the length of the strip plate 21. The rectifier bridge package is limited between the two limiting strips 22, and its pins extend below the strip plate 21 through the two limiting strips 22. The stop bar 42 blocks the end of the strip plate 21, and under the action of the vibrating feeder, the rectifier bridges in the strip plate 21 abut against each other. The rectifier bridge at the frontmost end abuts against the stop bar 42. At this time, the vibrating feeder stops feeding.

[0018] like Figures 1-5 As shown, the two clamping plates 31 begin to move towards the clamping slots 23. Before the clamping ends of the two clamping plates 31 enter the clamping slots 23, the stop rod 42 rotates, causing one end of it to move away from the end face of the strip plate 21, so that the foremost rectifier bridge inside the strip plate 21 is no longer obstructed. The two clamping plates 31 enter the corresponding clamping slots 23 respectively. At this time, the two clamping plates 31 are located on both sides of the foremost rectifier bridge, and the two clamping plates 31 move closer to each other, thereby clamping the rectifier bridge. After the clamping plates 31 clamp the foremost rectifier bridge and move it out of the strip plate 21, the stop rod 42 rotates in the opposite direction, causing one end of it to block the end of the strip plate 21. At this time, the vibrating feeding plate continues to feed material, so that the next rectifier bridge abuts against the stop bar 42, while the clamping plate 31 continues to clamp the previous rectifier bridge and moves it above the two forming blocks 51, so that the pins of the rectifier bridge are located between the two forming blocks 51. The two forming blocks 51 move closer to each other to bend the pins. After bending, the two forming blocks 51 and the two clamping plates 31 separate, and the bent rectifier bridge falls out from the dropping hole 15. Correspondingly, a collection box can be set below the dropping hole 15. The clamping plate 31 continues to move to the clamping slot 23 to clamp the next rectifier bridge. The cycle repeats, and the pins of the rectifier bridge can be bent continuously.

[0019] With the setting of the stop bar 42 and the strip plate 21, one end of the stop bar 42 can be moved out of the end of the strip plate 21 or blocked at the end. When one end of the stop bar 42 blocks the end of the strip plate 21, the stop bar 42 can quickly position the rectifier bridge to be bent between the two clamping slots 23 to ensure that the clamping piece 31 can effectively clamp the rectifier bridge. When one end of the stop bar 42 moves out of the end of the strip plate 21, the clamping piece 31 can stably clamp the rectifier bridge and transport it between the two forming blocks 51 for bending operation. This can effectively improve the transfer efficiency of the rectifier bridge between the strip plate 21 and the clamping piece 31, thereby improving the pin bending efficiency of the rectifier bridge.

[0020] Specifically, such as Figure 1 and Figure 2As shown, the clamping mechanism 3 also includes a mounting plate 32 erected above the bearing plate 1 along its length direction, with support plates 33 at both ends. A pair of guide rods 34 arranged along the width direction of the bearing plate 1 are mounted between the two support plates 33, and two clamping pieces 31 slide through the guide rods 34. The two clamping pieces 31 are arranged to move synchronously towards each other. Correspondingly, two oppositely arranged linear cylinders can be set on the mounting plate 32, with their movable ends connected to the corresponding clamping pieces 31 respectively; or the synchronous movement of the two clamping pieces 31 can be achieved by a motor and a two-way lead screw. A first linear mechanism 12 is mounted on the bearing plate 1 to drive the mounting plate 32 to move along the length direction of the bearing plate 1. The first linear mechanism 12 can be in the form of a linear cylinder, a hydraulic cylinder, etc.

[0021] Specifically, such as Figures 1-3 As shown, the rotation axis of the mounting rod 41 and the stop rod 42 is located in the middle of the rod body of the stop rod 42. The other end of the stop rod 42 is provided with a mating block 43, which is set with an inclined surface facing the clamping piece 31. The inclined surface is set above the mounting plate 32. An elastic element 44 is provided between the mounting rod 41 and the stop rod 42. In this embodiment, the elastic element 44 is in the form of a spring sheet. One end of the spring sheet is connected to the stop rod 42 and the other end is connected to the mounting rod 41. When the spring sheet is in its natural state, one end of the stop rod 42 is blocked at the end of the strip plate 21. One end of the mounting plate 32 is provided with a mating plate 35 horizontally, one end of which faces the mating block 43 and is set at a predetermined distance from the clamping piece 31. In application, when the mounting plate 32 moves towards the end of the strip plate 21, one end of the mating plate 35 first abuts against the inclined surface of the mating block 43. As the mounting plate 32 moves, one end of the mating plate 35 moves along the inclined surface of the mating block 43, thereby pressing down the mating block 43. The stop rod 42 rotates so that one end of the stop rod 42 moves out of the end face of the strip plate 21 before the clamping end of the clamping piece 31 enters the clamping slot 23. After the clamping end of the clamping piece 31, holding the rectifier bridge, moves out of the clamping slot 23, one end of the mating plate 35 separates from the inclined surface of the mating block 43, and under the action of the elastic element 44, one end of the stop rod 42 is blocked again at the end of the strip plate 21. By setting the mating block 43 and the mating plate 35, and coordinating with the movement of the mounting plate 32, the movement of the mounting plate 32 can be converted into the rotation of the stop rod 42, which can effectively improve the automation level of the bending device and further improve the pin bending efficiency of the rectifier bridge.

[0022] The above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.

Claims

1. A rectifier bridge pin bending device, characterized by, include: The support plate (1) is set horizontally; The conveying track (2) is used to convey the rectifier bridge. It includes two strip plates (21) that are erected above the support plate (1) along the length direction of the support plate (1). The strip plates (21) are both perpendicular to the support plate (1). The distance between the two strip plates (21) is equal to the thickness of the rectifier bridge. The lower ends of the opposite surfaces of the two strip plates (21) are provided with limiting strips (22) arranged along the length direction. The end face of the strip plate (21) is provided with a clamping groove (23) along the length direction. The clamping mechanism (3) is provided on the support plate (1) and located at the end of the strip plate (21). It includes a pair of clamping pieces (31) that are arranged toward the length direction of the strip plate (21) and move along the length direction of the strip plate (21). The two clamping pieces (31) are used to enter the corresponding clamping slot (23) to clamp the rectifier bridge. The material blocking mechanism (4) includes a mounting rod (41) vertically mounted on the bearing plate (1) and located on one side of the end of the strip plate (21). A stop rod (42) is rotatably connected to the upper end of the mounting rod (41), and its rotation axis is arranged along the length direction of the strip plate (21). Before the clamping end of the clamping piece (31) enters the clamping groove (23), one end of the stop rod (42) is in the state of rotating away from the end face of the strip plate (21). After the clamping end of the clamping piece (31) moves out of the clamping groove (23), one end of the stop rod (42) is in the state of rotating to block the end of the strip plate (21). The bending mechanism (5) is located on the support plate (1) and below the clamping mechanism (3) for bending the pins of the rectifier bridge in the clamping state.

2. The rectifier bridge pin bending device according to claim 1, characterized in that, The clamping mechanism (3) also includes a mounting plate (32) mounted above the bearing plate (1) along the length direction of the bearing plate (1), with support plates (33) at both ends. A pair of guide rods (34) arranged along the width direction of the bearing plate (1) are mounted between the two support plates (33), and two clamping pieces (31) slide through the guide rods (34). A first linear mechanism (12) is mounted on the bearing plate (1) to drive the mounting plate (32) to move along the length direction of the bearing plate (1).

3. The rectifier bridge pin bending device of claim 2, wherein, The rotation axis of the mounting rod (41) and the stop rod (42) is located in the middle of the rod body of the stop rod (42). The other end of the stop rod (42) is provided with a mating block (43), which is inclined on the side facing the clamping piece (31). An elastic element (44) is provided between the mounting rod (41) and the stop rod (42). When it is in its natural state, one end of the stop rod (42) is blocked at the end of the strip plate (21). One end of the mounting plate (32) is horizontally provided with a mating plate (35), one end of which faces the mating block (43) and is set at a predetermined distance from the clamping piece (31). One end of the mating plate (35) is used to abut against the inclined surface of the mating block (43) to rotate the stop rod (42).

4. The rectifier bridge pin bending device of claim 1, wherein, The bending mechanism (5) includes two forming blocks (51) located below the clamping plate (31). Both forming blocks (51) are L-shaped and centrally symmetrical. The two forming blocks (51) move synchronously towards each other along the width direction of the bearing plate (1).

5. The rectifier bridge pin bending device of claim 1, wherein, The bottom of the bearing plate (1) is vertically equipped with a support column (11).

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