A straight-in package pin forming tool

Abstract

The application discloses a straight insertion type package pin forming tool for bending the pins of electronic components, which comprises a base, a placing table, a plurality of tabs and an extrusion assembly. The base has a first seat surface and a second seat surface oppositely arranged in a first direction. The placing table is fixed to one side of the first seat surface away from the second seat surface and extends in a second direction, and has a connecting side. The plurality of tabs are arranged on the connecting side in the second direction, and the side of the tab away from the placing table is an extrusion side. The electronic components correspond to the tabs one by one and are arranged on the side of the placing table away from the base. The extrusion assembly is fixed to one side of the first seat surface away from the second seat surface and has the freedom of movement in the first direction. The straight insertion type package pin forming tool can complete the bending operation of the pins of multiple electronic components at one time, and the bending effect is uniform, without repeated adjustment after the bending is completed, thereby greatly improving the work efficiency.

Description

Technical Field

[0001] This application relates to the field of electronic component technology, and in particular to a through-hole package pin forming tooling. Background Technology

[0002] Through-hole packaging is a packaging method for electronic components, which typically involves inserting the pins of the electronic component into mounting holes on a PCB for soldering.

[0003] Currently, due to factors such as PCB size, component layout, and electrical clearance, the three mounting holes of the TO-220 package are often arranged in a triangular pattern on the PCB, meaning the three mounting holes are located at the three vertices of the triangle. As a result, during installation, operators need to manually bend the three pins to adjust them to the appropriate positions before installation.

[0004] In the above solution, since the TO-220 packaged device is only 10×15mm in size, it is inconvenient for operators to grasp when bending its pins, and the bending effect of manual pin bending is inconsistent. Before it can be put into use, it may require multiple adjustments to be successfully installed, which is inefficient. Utility Model Content

[0005] The main purpose of this application is to provide a through-hole package pin forming fixture, which aims to solve the problems of low bending efficiency and inconsistent bending effect of the three pins of the TO-220 packaged device.

[0006] To achieve the above objectives, this application provides a through-hole package pin forming fixture for bending the pins of electronic components. The through-hole package pin forming fixture includes a base, a placement stage, multiple tabs, and a pressing assembly. The base has a first seat surface and a second seat surface disposed opposite each other in a first direction, the first direction being the same as the thickness direction of the base. The placement stage is fixed to the side of the first seat surface away from the second seat surface and extends along a second direction, the second direction being the same as the length direction of the base. The placement stage has a connecting side perpendicular to a third direction, the third direction being the same as the width direction of the base. Multiple tabs are spaced apart on the connecting side in the second direction, the tabs being opposite to the thickness direction of the first seat surface. One side of the placement platform is the extrusion side, which is parallel to the connection side. The electronic components and the tabs are one-to-one and are all disposed on the side of the placement platform away from the base. The pins of the electronic components extend along the third direction and pass through the plane of the extrusion side. In the first direction, the tabs are directly opposite to a pin of the corresponding electronic component. The extrusion assembly is fixed to the side of the first seat surface away from the second seat surface and has the freedom to move along the first direction. The pins of the electronic components are located between the extrusion assembly and the tabs. The extrusion assembly moves along the first direction in response to a driving force to push the pins of the electronic components to fit against the connection side and the extrusion side.

[0007] Optionally, the electronic component has three pins arranged side by side; in the first direction, the tab is directly opposite the middle pin of the electronic component.

[0008] Optionally, the extrusion assembly includes a frame, a sliding part, a connecting plate, and multiple pressure blocks. The frame is fixed to the base; the sliding part is connected to the frame and has the freedom to slide along the first direction, and the pins of the electronic component are located between the sliding part and the protrusion; the connecting plate is fixed to the end of the sliding part near the protrusion; the multiple pressure blocks are fixed at intervals in the second direction to the end of the connecting plate facing the protrusion, and each pressure block is provided with a receiving groove for accommodating the protrusion; wherein, the pressure blocks move along the first direction in response to the driving force of the sliding part to push the pins of the electronic component to conform to the connecting side and the extrusion side.

[0009] Optionally, the lead thickness of the electronic component is a, and in the third direction, the distance between the side of the pressure block facing the placement platform and the connecting side is b, and a=b; when the pressure block approaches the base and reaches its maximum stroke, the protrusion is located in the receiving groove, and in a cross section perpendicular to the second direction, the minimum distance between each edge of the protrusion located in the receiving groove and the inner wall edge of the receiving groove is c, and c=a.

[0010] Optionally, the through-hole package pin forming fixture further includes two support parts and a pressure rod. The two support parts are respectively disposed at both ends of the placement stage and fixed to the base. The pressure rod is disposed on the side of the placement stage away from the base, and its first end is rotatably connected to one of the support parts. The pressure rod has a degree of freedom of rotation about the third direction. The second end of the pressure rod is engaged or disengaged from the other support part to lock or release the rotational degree of freedom of the pressure rod. When the pressure rod is engaged with the corresponding support part, the extension direction of the pressure rod is the same as the second direction, and the pressure rod abuts against the pin of the electronic component.

[0011] Optionally, the placement platform has a slot corresponding to the electronic component on the side opposite to the base; the electronic component is disposed in the slot, and the pins of the electronic component located in the slot abut against the pressure rod and the inner wall of the slot in the first direction, respectively.

[0012] Optionally, the protrusion is provided with a chamfer.

[0013] Optionally, the pressure bar and the corresponding support portion can be connected or separated by a hook-and-loop fastener.

[0014] Optionally, when the pressure block abuts against the base, the pressure block approaches the base to reach its maximum stroke.

[0015] Optionally, the sliding part is an electric telescopic rod, the cylinder of the electric telescopic rod is connected to the frame, and the piston rod of the electric telescopic rod is connected to the connecting plate.

[0016] This application provides a through-hole package pin forming fixture. The first direction can be the same as the direction of gravity, and the first seat surface is located above the second seat surface. In use, the electronic component is placed on the placement stage, and the extrusion assembly is driven to move downward. During the movement of the extrusion assembly, the pin portion of the electronic component extending out of the placement stage is extruded. After extrusion, the pins that are directly opposite the protrusion in the first direction are attached to the extrusion side, and the remaining pins are attached to the connection side. In this way, the area of ​​each pin away from the main body of the electronic component extends along the first direction, and on the cross section perpendicular to the first direction, the area of ​​each pin away from the main body of the electronic component is arranged in a triangular shape, which is convenient for insertion into the triangularly arranged mounting holes. In this way, the bending operation of multiple electronic component pins can be completed at one time, and the bending effect is uniform. There is no need to repeatedly adjust after bending, which greatly improves work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a through-hole package pin forming tooling proposed in an embodiment of this application; Figure 2 for Figure 1A schematic diagram of the structure after the pressure bar is opened in the embodiment of the Chinese version; Figure 3 for Figure 1 A structural schematic diagram from another perspective of the embodiment; Figure 4 This is a schematic diagram of the structure of the placement platform according to an embodiment of this application; Figure 5 for Figure 4 A structural schematic diagram from another perspective of the embodiment; Figure 6 This is a schematic diagram of the structure of the electronic component pins after bending according to an embodiment of this application.

[0018] In the diagram: 1. Electronic component; 2. Base; 3. Placement platform; 31. Connecting side; 32. Slot; 4. Protrusion; 41. Extrusion side; 5. Extrusion assembly; 51. Frame; 52. Sliding part; 53. Connecting plate; 54. Pressure block; 541. Receiving groove; 61. Support part; 62. Pressure rod.

[0019] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] 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.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixation" should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] refer to Figures 1-6 This application provides a through-hole package pin forming fixture for bending the pins of an electronic component 1. The through-hole package pin forming fixture may include a base 2, a placement platform 3, multiple tabs 4, and a pressing assembly 5. The base 2 has a first seat surface and a second seat surface disposed opposite each other in a first direction, the first direction being the same as the thickness direction of the base 2. The placement platform 3 is fixed to the side of the first seat surface away from the second seat surface and extends along a second direction, the second direction being the same as the length direction of the base 2. The placement platform 3 has a connecting side 31 perpendicular to a third direction, the third direction being the same as the width direction of the base 2. Multiple tabs 4 are spaced apart on the connecting side 31 in the second direction. The side of plate 4 facing away from the placement platform 3 is the extrusion side 41, which is parallel to the connection side 31. Electronic components 1 and protrusions 4 are one-to-one and are both located on the side of the placement platform 3 facing away from the base 2. The pins of electronic components 1 extend along a third direction and pass through the plane of the extrusion side 41. In the first direction, the protrusions 4 and the corresponding pins of electronic components 1 are directly opposite each other. The extrusion assembly 5 is fixed on the side of the first seat surface facing away from the second seat surface and has the freedom to move along the first direction. The pins of electronic components 1 are located between the extrusion assembly 5 and the protrusions 4. The extrusion assembly 5 moves along the first direction in response to the driving force to push the pins of electronic components 1 to fit against the connection side 31 and the extrusion side 41.

[0025] This application provides a through-hole package pin forming fixture. The first direction can be the same as the direction of gravity, and the first seat surface is located above the second seat surface. In use, the electronic component 1 is placed on the placement stage 3, and the extrusion assembly 5 is driven to move downward. During the movement of the extrusion assembly 5, the pin portion of the electronic component 1 extending out of the placement stage 3 is extruded. After extrusion, the pins that are directly opposite the protrusion 4 in the first direction are attached to the extrusion side 41, and the remaining pins are attached to the connection side 31. In this way, the area of ​​each pin away from the main body of the electronic component 1 extends along the first direction, and on the cross section perpendicular to the first direction, the area of ​​each pin away from the main body of the electronic component 1 is arranged in a triangular shape, which is convenient for insertion into the mounting hole with a triangular layout. In this way, the bending operation of multiple electronic component 1 pins can be completed at one time, and the bending effect is uniform. There is no need to repeatedly adjust after bending, which greatly improves work efficiency.

[0026] Specifically, such as Figure 1 As shown, the first direction is the X direction, the second direction is the Y direction, and the third direction is the Z direction. The base 2 can be a rectangular structure, so the base 2 has length, width and height. The first direction can also be the height direction of the base 2, that is, the thickness direction of the base 2. The second direction is the length direction of the base 2, and the third direction is the width direction of the base 2.

[0027] When in use, the base 2 can be placed horizontally so that the first direction is close to or coincides with the direction of gravity, which makes it easy to place the electronic component 1 stably on the placement platform 3. For ease of understanding, the following explanation will take the first direction as the direction of gravity as an example.

[0028] Among them, electronic component 1 can be in a TO-220 package, such as Figure 4 As shown, electronic component 1 has three pins arranged in parallel. In the first direction, the tab 4 is directly opposite the middle pin of electronic component 1. Thus, when the pin is bent, as shown... Figure 6 As shown, the three pins can be inserted into the corresponding three mounting holes on the PCB board.

[0029] Of course, electronic component 1 can have multiple pins (more than three), which corresponds to multiple mounting holes on the PCB board. When multiple mounting holes are arranged in a triangle, at least three mounting holes are the three vertices of the triangle, and the remaining mounting holes are all located on one side of the triangle. This will result in a mounting hole that is not on the same straight line as the other mounting holes. This mounting hole is called a special hole. When using this tooling for bending, the pin corresponding to the special hole should be aligned with the tab 4 in the first direction.

[0030] refer to Figure 2 , Figure 4 and Figure 5In an exemplary embodiment, the extrusion assembly 5 may include a frame 51, a sliding part 52, a connecting plate 53, and a plurality of pressure blocks 54. The frame 51 is fixed to the base 2. The sliding part 52 is connected to the frame 51 and has a degree of freedom to slide in a first direction. The pins of the electronic component 1 are located between the sliding part 52 and the protrusion 4. The connecting plate 53 is fixed to one end of the sliding part 52 near the protrusion 4. The plurality of pressure blocks 54 are fixed at intervals in a second direction to one end of the connecting plate 53 facing the protrusion 4. The pressure blocks 54 are provided with receiving grooves 541 for receiving the protrusion 4. The pressure blocks 54 move in the first direction in response to the driving force of the sliding part 52 to push the pins of the electronic component 1 to fit against the connecting side 31 and the extrusion side 41.

[0031] Specifically, the sliding part 52 can be an electric telescopic rod. The cylinder of the electric telescopic rod is connected to the frame 51, and the piston rod of the electric telescopic rod is connected to the connecting plate 53. When the electric telescopic rod extends, the connecting plate 53 and the pressure block 54 descend to squeeze the pin. When the telescopic rod shortens, the connecting plate 53 and the pressure block 54 rise, the receiving groove 541 separates from the protrusion 4, and the pin bending is completed.

[0032] The sliding part 52 can also be Figure 2 The hinge and sliding rod structure shown in the figure can be used to raise or lower the sliding rod that is hinged to the wrench by moving the wrench, which in turn raises or lowers the connecting plate 53. There are many traditional solutions with similar hinge and sliding rod structures, which will not be described in detail here.

[0033] In an exemplary embodiment, the pin thickness of electronic component 1 is a, and in the third direction, the distance between the side of the pressure block 54 facing the placement platform 3 and the connecting side 31 is b, and a=b; when the pressure block 54 approaches the base 2 and reaches its maximum stroke, the protrusion 4 is located in the receiving groove 541, and in the cross section perpendicular to the second direction, the minimum distance between each edge of the protrusion 4 located in the receiving groove 541 and the inner wall edge of the receiving groove 541 is c, and c=a.

[0034] It should be understood that, as Figure 2 As shown, the pin is not yet bent at this time, and the distance between the two sides of the pin in the first direction is the thickness of the pin.

[0035] When a=b, when the pressure block 54 descends to the placement stage 3, the pressure block 54 and the placement stage 3 can clamp the pin in the third direction, that is, squeeze the pin so that the pin is in contact with the connection side 31.

[0036] When c=a, and the pressure block 54 descends to the placement platform 3, the protrusion 4 enters the receiving groove 541. The inner wall of the receiving groove 541, in conjunction with the side edge of the protrusion 4, presses the pin at the corresponding position, causing the pin to fit against the pressing side 41. Figure 6 As shown.

[0037] It should be noted that the extrusion side 41 of the tab 4 is part of the side edge of the tab 4.

[0038] Furthermore, in an exemplary embodiment, the protrusion 4 is provided with a chamfer, such as... Figure 5 and Figure 6 As shown, the pins that are in contact with the extrusion side 41 are bent more smoothly.

[0039] In an exemplary embodiment, when the pressure block 54 abuts against the base 2, the pressure block 54 approaches the base 2 to reach its maximum stroke.

[0040] Thus, the sliding part 52 only needs to drive the pressure block 54 to contact the base 2 to complete the pin bending, making it easier to control the movement distance of the pressure block 54 and making it more convenient to use. When the sliding part 52 adopts an electric telescopic rod, the pressure block 54 contacts the base 2 when the electric telescopic rod is extended to its maximum stroke.

[0041] refer to Figure 1 , Figure 2 and Figure 6 In an exemplary embodiment, the through-hole package pin forming fixture may further include two support portions 61 and a pressure rod 62. The two support portions 61 are respectively disposed at both ends of the placement stage 3 and fixed to the base 2. The pressure rod 62 is disposed on the side of the placement stage 3 away from the base 2 and its first end is rotatably connected to a support portion 61. The pressure rod 62 has a degree of freedom of rotation about a third direction. The second end of the pressure rod 62 is engaged or disengaged from another support portion 61 to lock or release the rotational degree of freedom of the pressure rod 62. When the pressure rod 62 is engaged with the corresponding support portion 61, the extension direction of the pressure rod 62 is the same as the second direction, and the pressure rod 62 abuts against the pin of the electronic component 1.

[0042] Specifically, such as Figure 1 As shown, at this time, the pressure rod 62 is engaged with the corresponding support part 61, and the pressure rod 62 cannot rotate. The pressure rod 62 presses down the pin of the electronic component 1. In this way, when the pressure block 54 bends the pin, the electronic component 1 remains stable, reducing shaking and achieving a better bending effect.

[0043] in, Figure 2 The diagram shows the structure after the pressure rod 62 is separated from the corresponding support part 61 and the pressure rod 62 is rotated open, which facilitates the placement and removal of electronic components 1.

[0044] In the exemplary embodiment, the pressure bar 62 and the corresponding support part 61 are connected or separated by a hook-and-loop fastener. Of course, it is not necessary to use a hook-and-loop fastener here. Other fastening structures that are easy to connect and separate can also be used. There are many traditional solutions for hook-and-loop fasteners or other fastenings, which will not be described in detail here.

[0045] refer to Figure 6In an exemplary embodiment, the placement platform 3 is provided with a slot 32 corresponding to the electronic component 1 on the side away from the base 2; the electronic component 1 is disposed in the slot 32, and the pins of the electronic component 1 located in the slot 32 abut against the pressure rod 62 and the inner wall of the slot 32 in the first direction, respectively.

[0046] Specifically, after setting the card slot 32, when placing the electronic component 1 on the placement platform 3, simply place the electronic component 1 in the card slot 32, which makes it easy to control the placement position of the electronic component 1, and is convenient and quick.

[0047] Furthermore, the pins of electronic component 1 located in the slot 32 abut against the pressure rod 62 and the inner wall of the slot 32 in the first direction, respectively. Thus, when the pressure rod 62 abuts against the pin from above, the inner wall of the slot 32 also provides support for the pin from below, thereby clamping and fixing the pin to reduce the internal stress of the pin during bending, making the bending operation of the pin easier and improving the stability of electronic component 1 during bending.

[0048] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A through-hole package pin forming fixture, characterized in that, The through-hole package pin forming fixture is used for bending the pins of electronic components (1) and includes: The base (2) has a first seat surface and a second seat surface disposed opposite to each other in a first direction, the first direction being the same as the thickness direction of the base (2); The placement platform (3) is fixed to the side of the first seat surface away from the second seat surface and extends along a second direction, which is the same as the length direction of the base (2). The placement platform (3) has a connecting side (31) perpendicular to a third direction, which is the same as the width direction of the base (2). Multiple tabs (4) are spaced apart on the connecting side (31) in the second direction. The side of the tab (4) facing away from the placement platform (3) is the pressing side (41). The pressing side (41) is parallel to the connecting side (31). The electronic component (1) corresponds to the tab (4) and is located on the side of the placement platform (3) facing away from the base (2). The pin of the electronic component (1) extends along the third direction and passes through the plane of the pressing side (41). In the first direction, the tab (4) is directly opposite to a pin of the corresponding electronic component (1). The extrusion assembly (5) is fixed to the side of the first seat surface away from the second seat surface and has a degree of freedom to move along the first direction. The pin of the electronic component (1) is located between the extrusion assembly (5) and the tab (4). The extrusion assembly (5) moves along the first direction in response to the driving force to push the pin of the electronic component (1) to fit against the connection side (31) and the extrusion side (41).

2. The through-hole package pin forming fixture as described in claim 1, characterized in that, The electronic component (1) has three pins arranged side by side; In the first direction, the tab (4) is directly opposite the pin of the corresponding electronic component (1) located in the middle.

3. The through-hole package pin forming fixture as described in claim 1, characterized in that, The extrusion assembly (5) includes: The frame (51) is fixed to the base (2); The sliding part (52) is connected to the frame (51) and has the degree of freedom to slide along the first direction. The pin of the electronic component (1) is located between the sliding part (52) and the tab (4). A connecting plate (53) is fixed to one end of the sliding part (52) near the protrusion (4); Multiple pressure blocks (54) are fixed at intervals in the second direction to one end of the connecting plate (53) facing the protrusion (4), and the pressure blocks (54) are provided with receiving grooves (541) for accommodating the protrusion (4). The pressure block (54) moves along the first direction in response to the driving force of the sliding part (52) to push the pin of the electronic component (1) to fit against the connection side (31) and the squeezing side (41).

4. The through-hole package pin forming fixture as described in claim 3, characterized in that, The pin thickness of the electronic component (1) is a, and in the third direction, the distance between the side of the pressure block (54) facing the placement platform (3) and the connecting side (31) is b, and a=b; When the pressure block (54) approaches the base (2) and reaches its maximum stroke, the protrusion (4) is located in the receiving groove (541). On the cross section perpendicular to the second direction, the minimum distance between the edge of the protrusion (4) located in the receiving groove (541) and the inner wall edge of the receiving groove (541) is c, and c=a.

5. The through-hole package pin forming fixture as described in claim 1, characterized in that, The through-hole package pin forming fixture also includes: Two support parts (61) are respectively disposed at both ends of the placement platform (3) and fixed to the base (2); A pressure rod (62) is disposed on the side of the placement platform (3) away from the base (2) and its first end is rotatably connected to a support part (61). The pressure rod (62) has a degree of freedom to rotate about the third direction. The second end of the pressure rod (62) is engaged or disengaged from another support part (61) to lock or release the rotational degree of freedom of the pressure rod (62). When the pressure rod (62) is engaged with the corresponding support part (61), the extension direction of the pressure rod (62) is the same as the second direction, and the pressure rod (62) abuts against the pin of the electronic component (1).

6. The through-hole package pin forming fixture as described in claim 5, characterized in that, The placement platform (3) has a slot (32) corresponding to the electronic component (1) on the side away from the base (2). The electronic component (1) is disposed in the slot (32), and the pins of the electronic component (1) located in the slot (32) abut against the pressure rod (62) and the inner wall of the slot (32) respectively in the first direction.

7. The through-hole package pin forming fixture as described in claim 3, characterized in that, The protrusion (4) is provided with a chamfer.

8. The through-hole package pin forming fixture as described in claim 5, characterized in that, The pressure bar (62) and the corresponding support (61) are connected or separated by hook and loop fasteners.

9. The through-hole package pin forming fixture as described in claim 4, characterized in that, When the pressure block (54) comes into contact with the base (2), the pressure block (54) approaches the base (2) to reach its maximum stroke.

10. The through-hole package pin forming fixture as described in claim 3, characterized in that, The sliding part (52) is an electric telescopic rod, the cylinder of the electric telescopic rod is connected to the frame (51), and the piston rod of the electric telescopic rod is connected to the connecting plate (53).

Images