Pin bending device

Abstract

The application discloses a pin bending device, which comprises a base, a placing part arranged on the base and a bending assembly capable of moving up and down. The placing part has a placing surface and an inwardly inclined side surface, and the side surface is connected with the placing surface at an acute angle. The bending assembly comprises a pressure bearing part, a roller assembly and an elastic part. The roller assembly is rotatably connected to the pressure bearing part. When the pressure bearing part drives the roller assembly to move downward, the roller assembly exerts pressure on the pin of the electronic device in a rolling contact mode, and the elastic part applies a force to the roller assembly towards the side surface, so that the roller assembly tightly presses the pin on the inclined side surface. The rolling contact is used to replace sliding friction, thereby effectively reducing scratches on the surface plating layer of the pin. Meanwhile, the inclined side surface is used to make the pin excessively bent inward, so as to offset the rebound error of the metal pin, thereby effectively improving the size precision and consistency of the pin bending forming.

Description

Technical Field

[0001] This application relates to the field of electronic components technology, and in particular to a pin bending device. Background Technology

[0002] Electronic components connect to circuit boards via pins to perform their functions. To ensure the reliability and stability of the pins during soldering, they typically need to be bent to align with the circuit board pads. Existing methods usually employ push-rod bending, where a push-rod mechanism applies downward pressure directly to the pin, forcing it to bend.

[0003] However, when using the push rod bending method for bending, the pin is prone to metal stress springback, which makes it impossible for the bent pin to maintain a good bending state or a vertical state. This leads to inconsistent pin dimensions after forming, unstable pin bending quality, and even the risk of pin deformation and breakage, affecting product reliability. Summary of the Invention

[0004] This application discloses a pin bending device that can effectively protect the pin surface while using the reserved over-bending space to offset the springback of the metal pin. Without increasing the push rod operation steps, it effectively improves the yield rate, dimensional consistency and versatility of the pin bending and the production equipment.

[0005] To achieve the above objectives, in a first aspect, this application discloses a pin bending device, comprising: Base; A placement component, disposed on the base, has a placement surface and a side surface. The placement surface is configured to place an electronic device to be bent. The side surface is connected to the placement surface at an angle, and the side surface is inclined from the connection point with the placement surface away from the placement surface in the height direction of the base, so that an acute angle is formed between the side surface and the placement surface. A bending assembly is movably disposed on the base along the height direction of the base, the bending assembly including a pressure-bearing member, a roller assembly and an elastic member; The pressure-bearing member is disposed above the base and is configured to move relative to the base in a direction close to or away from the placement surface; The roller assembly extends along a first direction and is rotatably connected to the pressure member. The roller assembly is configured to be disposed corresponding to the side surface so that, driven by the pressure member, it moves along a path close to the placement surface to press the pin of the electronic device to be bent onto the placement surface, or moves along a path away from the placement surface to disengage from the pin. The elastic element is connected to the roller assembly and is configured to apply a force close to or pressing against the side of the roller assembly when the roller assembly presses against the pin, so that the roller assembly presses the pin against the side. Wherein, the first direction and the height direction intersect.

[0006] The side of the placement component slopes away from the placement surface from its connection point, creating an acute angle between the side and the placement surface. This sloped side structure provides space for the pin to bend inwards, allowing the pin to bend inwards at a predetermined angle. Combined with an elastic element connected to the roller assembly, as the roller assembly presses the pin down, the elastic element continuously applies a lateral force to the roller assembly, pressing the pin against the acute-angled side. The lateral force applied by the elastic element ensures that the roller assembly can conform to the pin's deformation and apply continuous lateral pressure, allowing the pin to fully conform to the sloped side, maintaining this inward bending. Therefore, when the pin rebounds after bending, because it has already been bent inwards, the outward rebound of the pin precisely reaches the target bending angle, reducing the angular error caused by the pin's rebound and improving the dimensional accuracy of the pin bending process. In other words, this application utilizes the bending and rebounding characteristics of the pin and pre-sets the inward bending angle of the pin. Thus, when the pin bends and rebounds, the rebound angle is exactly the pre-set inward bending angle. This ensures that even if the pin bends and rebounds, the final bending angle of the pin is still within the target bending angle.

[0007] Furthermore, the bending assembly employs a rotatable roller assembly. When the bearing component moves the roller assembly downwards to contact the pin, the roller assembly applies downward pressure along the pin through rolling contact. This rolling contact avoids or reduces scratches on the metal plating of the pin surface, thereby improving the yield of subsequent soldering.

[0008] As an optional implementation, the tilt angle of the side relative to the height direction of the base is α, which satisfies: 2°≤α≤8°.

[0009] By limiting the included angle α of the tilt angle to between 2° and 8°, an appropriate inward overbending allowance can be provided for the pin, which helps to accurately offset the physical springback after the pin is formed, thereby reducing the angle error after the pin is bent. If the included angle α is too small (e.g., less than 2°), it means that the tilt of the side is insufficient, and the allowance for inward overbending of the pin is too small. In this case, the amount of rebound generated by the pin after it leaves the roller assembly is likely to be greater than the reserved allowance, resulting in a larger final bending angle of the pin. If the included angle α is too large (e.g., greater than 8°), it means that the tilt of the side is too deep, and the extent of inward overbending of the pin is too large. In this case, the pin is prone to excessive deformation, which not only increases the risk of pin structural breakage, but also easily leads to a smaller final bending angle after the pin rebounds, which cannot meet the soldering requirements. Therefore, by controlling the included angle α between 2° and 8°, it is beneficial to balance the structural strength of the pin with the dimensional accuracy of the bending angle.

[0010] As an optional implementation, the roller assembly includes: Two bearing seats, the two bearing seats are spaced apart along a first direction and are both connected to the pressure-bearing member, the bearing seats extend along the height direction of the base; A roller assembly, rotatably connected between the two bearing seats and located at the end of the bearing seat opposite to the pressure-bearing member.

[0011] Two bearing seats are spaced apart along a first direction, and the roller is rotatably connected between the two bearing seats, ensuring that both ends of the roller are supported. This helps maintain the force balance of the roller during downward rolling and pressing. The bearing seats extend along the height direction of the base, and the roller is located at the end of the bearing seat opposite to the pressure-bearing component. This structure provides the roller with a downward extension, allowing it to be closer to the base in the initial state. This shortens the travel distance required for the pressure-bearing component to push the roller down to contact the pin, thus improving the processing efficiency of the bending device. Simultaneously, the spaced arrangement of the two bearing seats along the first direction also creates a receiving space between them. This space provides a clearance position for the main body of the electronic device when the pressure-bearing component moves downward, helping to prevent collisions between the pressure-bearing component and the electronic device.

[0012] As an optional implementation, the roller assembly further includes: A connecting seat is disposed on the side of the pressure-bearing member near the base, and the connecting seat extends along the first direction. The two bearing seats are respectively connected to the two ends of the connecting seat along the first direction.

[0013] The connecting seat extends along a first direction, and two bearing seats are respectively connected to the two ends of the connecting seat along the first direction. This makes the connecting seat, the two bearing seats, and the roller assembly together form a stable structure, which helps to prevent the two bearing seats from tilting or expanding outwards individually when subjected to the reaction force of the pin. At the same time, the connecting seat fixes the two bearing seats to the pressure-bearing component, enhancing the structural rigidity of the roller assembly when it is pressed downwards. During the downward movement of the pressure-bearing component to apply pressure, the connecting seat can evenly distribute and transmit the pressure at the center position to the bearing seats at both ends, which helps to reduce the uneven force distribution at both ends of the roller assembly when it rotates to press the pin. It can be seen that the design of the connecting seat helps to improve the stability of the roller assembly during the downward rolling process of pressing the pin.

[0014] As an optional implementation, the pin bending device further includes: An adjustment structure, connected to the pressure-bearing member and the roller assembly, is configured to allow the roller assembly to move relative to the base in a second direction to adjust the spacing of the roller assembly relative to the side. The second direction, the first direction, and the height direction intersect each other.

[0015] An adjustment structure connects the pressure-bearing component and the roller assembly, allowing the roller assembly to translate relative to the base in a second direction. By adjusting the distance between the roller assembly and the side of the placement component, the roller assembly can flexibly adapt to electronic devices of different sizes and specifications, meeting the bending requirements of different pin spans. When processing different models of electronic devices, it is not necessary to remake or replace the entire bending device, reducing the time cost of equipment debugging and fixture replacement, and improving the versatility of the bending device.

[0016] As an optional implementation, the adjustment structure includes an adjustment block and an adjustment bolt, wherein the adjustment block is disposed on one side of the pressure-bearing member along the second direction; The adjusting bolt passes through the adjusting block and is connected to the connecting seat. The adjusting bolt is configured to drive the connecting seat to move when rotated, so that the connecting seat drives the roller assembly to move in the second direction.

[0017] An adjusting bolt passes through an adjusting block and connects to a connecting seat. The rotational motion, driven by the threaded engagement of the adjusting bolt, is converted into translational motion of the connecting seat in a second direction. This threaded transmission structure allows for stepless adjustment of the roller assembly's position, facilitating better control of the distance between the roller assembly and the side of the placement component. Furthermore, due to the inherent self-locking properties of the threaded structure, after fine-tuning the distance, a tightening measure further restricts slippage of the connecting seat through the threaded engagement between the adjusting bolt and the adjusting block. This prevents or reduces lateral displacement of the roller assembly when the pin is pressed downwards, thus contributing to the structural stability of the roller assembly during bending processes.

[0018] As an optional implementation, the pin bending device further includes: A limiting structure is disposed between the base and the pressure-bearing member, the limiting structure being configured to restrict the pressure-bearing member from moving closer to the base by a minimum distance.

[0019] A limiting structure is positioned between the base and the pressure-bearing component, ensuring that the pressure-bearing component is stopped at a predetermined minimum distance during its downward movement to press the pins. This design prevents the pressure-bearing component from moving excessively downward, reducing the risk of excessive flattening or even structural breakage of the pins under excessive pressure. Simultaneously, the limiting structure precisely defines the pressing depth, ensuring that each bending and pressing action stops accurately at the same position. This maintains a stable state of the pins pressed by the roller assembly, thus helping to maintain consistency in the bending angle and dimensions of the pins across multiple batches of processing.

[0020] As an optional implementation, the limiting structure includes a first limiting part and a second limiting part; The first limiting part is disposed on the side of the pressure-bearing member facing the base, and the second limiting part is disposed on the side of the base facing the pressure-bearing member; The first limiting part is used to abut against the second limiting part when the pressure-bearing member moves closer to the base, so as to limit the minimum distance at which the pressure-bearing member moves closer to the base.

[0021] The first limiting part is mounted on the pressure-bearing component, and the second limiting part is mounted on the base, with the first and second limiting parts positioned vertically opposite each other. As the pressure-bearing component moves downwards, the first limiting part moves synchronously with it and eventually abuts against the second limiting part on the base. This abutting engagement between the first and second limiting parts limits the minimum distance, which helps prevent excessive downward pressure on the pressure-bearing component due to excessive external force, reduces the risk of excessive flattening or even structural breakage of the pins under excessive pressure, and also helps maintain the consistency of the bending angle of electronic device pins across multiple batches of processing.

[0022] As an optional implementation, the pin bending device further includes: An elastic pin is disposed on the side of the pressure member near the base, and the elastic pin is configured to abut against the electronic device to be bent, which is placed on the placement surface, when the pressure member moves closer to the base.

[0023] The flexible ejector pin is positioned on the side of the pressure-bearing component near the base. As the pressure-bearing component moves downwards towards the base, the flexible ejector pin contacts and abuts against the electronic device on the placement surface before the roller assembly. The flexible ejector pin has elastic deformation capability, allowing it to recoil during the continuous downward stroke of the pressure-bearing component and continuously apply a clamping force towards the placement surface to the electronic device. The clamping action of the flexible ejector pin confines the electronic device to the placement surface, preventing or reducing positional displacement or warping of the electronic device when bent and squeezed by the roller assembly. By fixing the electronic device body against the roller before bending, the flexible ejector pin helps maintain the positional stability of the electronic device throughout the bending process, thereby improving the consistency of the lead bending dimensions.

[0024] As an optional implementation, the placement member has two sides, which are arranged opposite to each other; The bending assembly includes two roller assemblies and two elastic elements. The two roller assemblies are respectively disposed on the two sides, and the two elastic elements are connected between the two roller assemblies.

[0025] The placement component has two opposing sides, and the bending assembly has two corresponding roller assemblies, enabling the pin bending device to simultaneously process the pins on both sides of the electronic device. Simultaneously, two elastic elements are connected between the two roller assemblies, allowing the tension of the elastic elements to directly act on the roller assemblies on both sides. During the downward pressing of the pin, the two elastic elements provide mutual tensile support using the relative positional relationship between the two roller assemblies, causing each roller assembly to experience an inward lateral force and move towards its corresponding side. This not only makes the force application structure of the pin bending device more compact but also ensures that the lateral forces on the roller assemblies on both sides remain balanced when pressing the pin.

[0026] Compared with the prior art, the beneficial effects of this application are: This application provides a pin bending device in which the side of the placement component is inclined away from the placement surface from the connection point, forming an acute angle between the side and the placement surface. This inclined side structure provides space for the pin to bend inwards. By allowing the pin to undergo a preset overbending, the target bending angle is achieved by utilizing the rebound of the metal material after bending, thereby reducing the angle error caused by the pin's rebound and improving the dimensional accuracy of the pin bending process. Simultaneously, the bending assembly employs a rotatable roller assembly. When the pressure member drives the roller assembly downwards to contact the pin, the roller assembly applies downward pressure along the pin through rolling contact. This rolling contact avoids or reduces scratches on the metal plating of the pin surface. Furthermore, an elastic element is connected to the roller assembly. During the downward pressing of the pin by the roller assembly, the elastic element continuously applies a lateral force to the roller assembly, causing the roller assembly to press the pin against the acute-angled side. The lateral force applied by the elastic element ensures that the roller assembly can conform to the deformation of the pin and apply continuous lateral pressure, allowing the pin to fully conform to the inclined side, thereby further improving the consistency of the bending angle. Therefore, this application discloses a pin bending device that can effectively protect the pin surface while using the reserved over-bending space to offset the springback of the metal pin. Without increasing the push rod operation steps, it effectively improves the yield rate, dimensional consistency, and versatility of production equipment for pin bending. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the pin bending device disclosed in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the placement component disclosed in the embodiments of this application; Figure 3 This is a cross-sectional schematic diagram of the pin bending device when not pressed down, as disclosed in the embodiments of this application; Figure 4 This is a cross-sectional schematic diagram of the pin bending device during pressing as disclosed in the embodiments of this application; Figure 5 This is a front view of the pin bending device disclosed in the embodiments of this application; Figure 6 This is a top view of the pin bending device disclosed in the embodiments of this application; Figure 7This is an exploded view of the pin bending device disclosed in the embodiments of this application.

[0029] Explanation of reference numerals in the attached figures: Pin bending device-100; Electronic components-200; Pin-201; Base -10; Placement component -20; Placement surface -21; Side surface -22; Bending assembly - 30; Pressure bearing component - 31; Roller assembly - 32; Bearing housing - 321; Roller component - 322; Connecting seat - 323; Elastic component - 33; Adjustment structure -40; Adjustment block -41; Adjustment bolt -42; Fixing bolt -43 Limiting structure -50; First limiting part -51; Second limiting part -52; Elastic ejector pin -60; Guide reset mechanism-70; guide shaft-71; reset spring-72; First direction - F1; Second direction - F2; Height direction - F3; Inclination angle of the side relative to the height direction of the base - α. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] In this application, the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0032] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0033] Furthermore, the terms "installation," "setting," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0034] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0035] As described in the background section of this application, existing lead bending technologies typically employ a bending fixture comprising an upper template, a lower template, a guide assembly, and a bending lead assembly. This bending lead assembly contains a pressure roller or roller corresponding to the lead, using a downward pressing structure to bend the lead. Existing pressure rollers typically only press the lead downwards in a vertical direction. When the roller disengages from the lead, the metal lead usually springs back due to its material properties. This leads to metal stress springback, causing the bent lead to fail to maintain a proper bending or vertical position, resulting in inconsistent lead dimensions, unstable lead bending quality, and even the risk of lead deformation or breakage, affecting product reliability.

[0036] Based on this, this application discloses a pin bending device. By providing an inwardly inclined side at an acute angle on the placement component, space is reserved for the pin to bend excessively inward. The rebound properties of metal are then utilized to precisely conform to the target bending angle. Simultaneously, a rotatable roller assembly and an elastic element are used. When the roller assembly presses downward, it converts sliding friction into rolling contact, while the elastic element applies a continuous lateral traction force to the roller assembly, causing the pin to conform to and be firmly pressed against the inclined side. This device effectively protects the pin surface while using the reserved excessive bending space to counteract the rebound of the metal pin. Without increasing the number of push rod operation steps, it effectively improves the yield rate, dimensional consistency, and versatility of production equipment for pin bending.

[0037] The pin bending device of this application will now be described in detail with reference to the accompanying drawings.

[0038] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of the pin bending device 100 disclosed in an embodiment of this application. Figure 2 This is a schematic diagram of the structure of the placement component 20 disclosed in the embodiments of this application. Figure 3This is a cross-sectional schematic diagram of the pin bending device 100 when not pressed, as disclosed in an embodiment of this application. Figure 4 This is a cross-sectional schematic diagram of the pin bending device 100 disclosed in this application during pressure application. This application proposes a pin bending device 100, which includes a base 10, a placement member 20, and a bending assembly 30. The placement member 20 is disposed on the base 10 and has a placement surface 21 and a side surface 22. The placement surface 21 is used to place the electronic device 200 to be bent. The side surface 22 is angled to the placement surface 21, and the side surface 22 is inclined away from the placement surface 21 from the connection point in the height direction F3 of the base 10, so that an acute angle is formed between the side surface 22 and the placement surface 21. The bending assembly 30 is movably disposed on the base 10 in the height direction F3 of the base 10, and the bending assembly 30 includes a pressure member 31, a roller assembly 32, and an elastic member 33. The pressure member 31 is disposed above the base 10 and configured to move relative to the base 10 in a direction close to or away from the placement surface 21. A roller assembly 32 extends along a first direction F1 and is rotatably connected to a pressure member 31. The roller assembly 32 is disposed opposite to the side surface 22 so that, driven by the pressure member 31, it moves along a path close to the placement surface 21 to press the pin 201 of the electronic device 200 to be bent onto the placement surface 21, or moves away from the placement surface 21 to disengage the pin 201. An elastic member 33 is connected to the roller assembly 32 and is configured to apply a force close to or pressing against the side surface 22 to the roller assembly 32 when the roller assembly 32 presses against the pin 201, so that the roller assembly 32 presses the pin 201 against the side surface 22. The first direction F1 and the height direction F3 intersect.

[0039] Specifically, the side 22 of the placement member 20 is inclined away from the placement surface 21 from the connection point with the placement surface 21, so that the side 22 and the placement surface 21 form an acute angle. This inclined side 22 structure provides space for the pin 201 to bend inward, so that the pin 201 can be bent inward in a predetermined way. Combined with the elastic member 33 connected to the roller assembly 32, during the process of the roller assembly 32 pressing the pin 201 downward, the elastic member 33 continuously applies a force toward the side 22 to the roller assembly 32, so that the roller assembly 32 presses the pin 201 onto the acute-angled side 22. The lateral force applied by the elastic element 33 ensures that the roller assembly 32 can conform to the deformation of the pin 201 and apply continuous lateral pressure, allowing the pin 201 to fully conform to the inclined side 22. This maintains the inward bending of the pin 201, so that when the pin 201 rebounds after bending, because it has already been bent inward, the outward rebound of the pin 201 will precisely reach the target bending angle. This reduces the angle error caused by the rebound of the pin 201 and helps improve the dimensional accuracy of the pin 201 bending. In other words, this application utilizes this bending and rebound characteristic of the pin 201, pre-setting the inward bending angle of the pin 201. Therefore, when the pin 201 bends and rebounds, the rebound angle is exactly the pre-set inward bending angle, ensuring that even if the pin 201 bends and rebounds, the final bending angle of the pin 201 remains within the target bending angle.

[0040] Furthermore, the bending assembly 30 employs a rotatable roller assembly 32. When the pressure bearing 31 moves the roller assembly 32 downward to contact the pin 201, the roller assembly 32 applies pressure downward along the pin 201 through rolling contact. This rolling contact can avoid or reduce scratches on the metal plating layer on the surface of the pin 201, thereby improving the yield of subsequent soldering.

[0041] It is understood that the electronic device 200 to be bent can be a ceramic tube product with metal leads 201, an integrated circuit packaged chip, or a discrete device, etc., and this embodiment does not specifically limit it.

[0042] It is understood that the elastic element 33 can be a tension spring, compression spring, torsion spring, or high-elasticity rubber, etc., which are structural components with deformation recovery capabilities. This embodiment does not specifically limit this.

[0043] It is understood that the top of the placement component 20 has a groove. The groove is used to accommodate the electronic device 200 to be bent, and the inner wall contour of the groove is adapted to the outer contour of the electronic device 200. This groove structure can limit the electronic device 200, which helps to prevent the electronic device 200 from slipping when subjected to the bending force of the pin 201, thereby further maintaining the positional stability of the electronic device 200 during the bending process. This embodiment does not specifically limit this aspect.

[0044] In some embodiments, such as Figure 3 As shown, the tilt angle of side 22 relative to the height direction F3 of base 10 is α, which satisfies: 2°≤α≤8°.

[0045] Specifically, by limiting the included angle α of the tilt angle to between 2° and 8°, an appropriate inward overbending allowance can be provided for pin 201, which helps to accurately offset the physical springback of pin 201 after forming, thereby reducing the angle error of pin 201 after bending. If the included angle α is too small (e.g., less than 2°), it means that the tilt of side 22 is insufficient, and the allowance for inward overbending of pin 201 is too small. In this case, the rebound of pin 201 after detaching from roller assembly 32 is likely to be greater than the reserved allowance, resulting in a larger final bending angle of pin 201. If the included angle α is too large (e.g., greater than 8°), it means that the tilt of side 22 is too deep, and the inward overbending of pin 201 is too large. In this case, pin 201 is prone to excessive deformation, which not only increases the risk of structural breakage of pin 201, but also easily leads to a smaller final bending angle of pin 201 after rebound, which cannot meet the welding requirements. Therefore, by controlling the included angle α between 2° and 8°, it is beneficial to balance the structural strength of pin 201 and the dimensional accuracy of the bending angle.

[0046] It is understood that the specific value of the included angle α can be selected in combination with the metal material characteristics and thickness of pin 201. The specific value of the included angle α can include, but is not limited to, 2°, 3°, 4°, 5°, 6°, 7° or 8°, etc., and this embodiment does not make a specific limitation on it.

[0047] The number of sides 22 on the placement member 20 can be adjusted according to the pins 201 of the electronic device 200 to be bent. When only one side of the electronic device 200 pins 201 needs to be bent, the placement member 20 has one side 22. When the electronic device 200 has pins 201 on both sides that need to be bent, the placement member 20 has two oppositely arranged sides 22.

[0048] In some embodiments, the placement member 20 has a side surface 22, enabling the pin bending device 100 to position and process electronic devices 200 with only one-sided pins 201. This single-sided acute-angle structure provides ample space for the pins 201 to bend inwards, allowing the roller assembly 32 to press the pins 201 firmly against the inclined side surface 22 under the tension of the elastic member 33. The single-sided acute-angle design provides a preset overbending angle for the pins 201, thereby utilizing the natural rebound of the bent metal pins 201 to accurately conform to the target angle, effectively overcoming the springback error during single-sided bending, and thus improving the dimensional accuracy and yield of the single-sided pin 201 bending process.

[0049] In some embodiments, the placement member 20 has two sides 22, which are arranged opposite to each other. The bending assembly 30 includes two roller assemblies 32 and two elastic members 33, with the two roller assemblies 32 respectively arranged corresponding to the two sides 22, and the two elastic members 33 connected between the two roller assemblies 32.

[0050] Specifically, the placement component 20 has two opposing sides 22, and the bending component 30 has two corresponding roller assemblies 32, enabling the pin bending device 100 to simultaneously process the pins 201 on both sides of the electronic device 200. Simultaneously, two elastic members 33 are connected between the two roller assemblies 32, allowing the tension of the two elastic members 33 to directly act on the roller assemblies 32 on both sides. During the downward pressing of the pins 201, the two elastic members 33 provide mutual tensile support using the relative positional relationship between the two roller assemblies 32, causing each roller assembly 32 to receive an inward lateral force and move towards its corresponding side 22. This not only makes the force-applying structure of the pin bending device 100 more compact but also keeps the lateral forces on the roller assemblies 32 balanced when pressing the pins 201.

[0051] In some embodiments, such as Figures 3 to 5 As shown, Figure 5 This is a front view of the pin bending device 100 disclosed in an embodiment of this application. The roller assembly 32 includes two bearing seats 321 and a roller member 322. The two bearing seats 321 are spaced apart along a first direction F1 and are both connected to the pressure member 31. The bearing seats 321 extend along the height direction F3 of the base 10. The roller member 322 is rotatably connected between the two bearing seats 321 and is located at the end of the bearing seat 321 opposite to the pressure member 31.

[0052] Specifically, two bearing seats 321 are spaced apart along the first direction F1, and the roller 322 is rotatably connected between the two bearing seats 321, so that both ends of the roller 322 are supported, which helps to maintain the force balance of the roller 322 during the downward rolling pressing process. The bearing seats 321 extend along the height direction F3 of the base 10, and the roller 322 is located at the end of the bearing seat 321 away from the pressure member 31. This structure provides the roller 322 with a downward extension height, so that the roller 322 can be closer to the base 10 in the initial state, shortening the travel required for the pressure member 31 to drive the roller 322 to press down the contact pin 201, which helps to improve the processing efficiency of the bending device. At the same time, the two bearing seats 321 are spaced apart along the first direction F1, and a receiving space is also formed between them. This space can provide a clearance position for the main body of the electronic device 200 when the pressure member 31 moves downward, which helps to avoid collision between the pressure member 31 and the electronic device 200 when it moves downward.

[0053] It is understood that the bearing housing 321 may be a metal bracket with mounting holes, a standard bearing mounting base, or a downward extension block integrally formed with the pressure-bearing component 31, etc. This embodiment does not specifically limit it.

[0054] It is understood that the roller component 322 can be a solid cylindrical roller, a roller, or a rolling assembly composed of an internal bearing and an external cylinder, etc. This embodiment does not specifically limit it.

[0055] It is understood that the roller component 322 is rotatably connected to the bearing housing 321. The specific connection method can be through bearing connection, pin through fit, etc. This embodiment does not make specific limitations on this.

[0056] In some embodiments, such as Figures 4 to 7 As shown, Figure 6 This is a top view of the pin bending device 100 disclosed in an embodiment of this application. Figure 7 This is an exploded view of the pin bending device 100 disclosed in the embodiments of this application. The roller assembly 32 also includes a connecting seat 323. The connecting seat 323 is disposed on the side of the pressure bearing member 31 near the base 10, and the connecting seat 323 extends along the first direction F1. The two bearing seats 321 are respectively connected to the two ends of the connecting seat 323 along the first direction F1.

[0057] Specifically, the connecting seat 323 extends along the first direction F1, and the two bearing seats 321 are respectively connected to the two ends of the connecting seat 323 along the first direction F1. This allows the connecting seat 323, the two bearing seats 321, and the roller assembly 322 to form a stable structure, which helps prevent the two bearing seats 321 from individually tilting laterally or expanding outward when subjected to the reaction force of the pin 201. Simultaneously, the connecting seat 323 fixes the two bearing seats 321 to the pressure-bearing member 31, enhancing the structural rigidity of the roller assembly 32 when it is pressed downwards. During the downward movement of the pressure-bearing member 31 to apply pressure, the connecting seat 323 can evenly distribute and transmit the pressure at the center to the bearing seats 321 at both ends, reducing uneven force distribution at both ends of the roller assembly 322 when it rotates to press the pin 201. Therefore, the connecting seat 323 improves the stability of the roller assembly 322 during the downward rolling process of pressing the pin 201.

[0058] It is understood that the connector 323 can be made of metal materials such as structural steel, high-strength aluminum alloy or hard alloy, and this embodiment does not make specific limitations on this.

[0059] It is understood that the connection between the two bearing housings 321 and the two ends of the connecting seat 323 can be a bolt connection, a pin positioning connection, etc., and this embodiment does not make specific limitations on this.

[0060] It is understood that the specific shape of the connector 323 can be constructed as a strip-shaped metal block, a plate-like structure, etc., and this embodiment does not specifically limit it.

[0061] In some embodiments, such as Figures 4 to 7 As shown, the pin bending device 100 also includes an adjustment structure 40. The adjustment structure 40 is connected to the pressure member 31 and the roller assembly 32, and is configured to allow the roller assembly 32 to move relative to the base 10 along a second direction F2 to adjust the spacing between the roller assembly 32 and the side 22. The second direction F2, the first direction F1, and the height direction F3 intersect each other.

[0062] Specifically, the adjusting structure 40 is connected between the pressure-bearing component 31 and the roller assembly 32, allowing the roller assembly 32 to translate relative to the base 10 along the second direction F2. By adjusting the distance between the roller assembly 32 and the side 22 of the placement component 20, the roller assembly 32 can flexibly adapt to electronic devices 200 of different sizes and specifications, meeting the bending requirements of different pin spans 201. When processing different models of electronic devices 200, it is not necessary to remake or replace the entire bending device, reducing the time cost of equipment debugging and fixture replacement, and improving the versatility of the bending device.

[0063] It is understood that the adjustment structure 40 can be a mechanical component capable of linear movement adjustment, such as a nut mechanism, a gear and rack mechanism, a pneumatic slide, or a manual fine-tuning slider. This embodiment does not specifically limit this.

[0064] In some embodiments, such as Figures 4 to 7 As shown, the adjusting structure 40 includes an adjusting block 41 and an adjusting bolt 42. The adjusting block 41 is disposed on one side of the pressure bearing member 31 along the second direction F2. The adjusting bolt 42 passes through the adjusting block 41 and is connected to the connecting seat 323. The adjusting bolt 42 is configured to drive the connecting seat 323 to move when rotated, so that the connecting seat 323 drives the roller assembly 32 to move along the second direction F2.

[0065] Specifically, the adjusting bolt 42 passes through the adjusting block 41 and connects to the connecting seat 323. The rotational drive of the threaded drive on the adjusting bolt 42 converts the rotational motion into a translational motion of the connecting seat 323 along the second direction F2. This threaded transmission structure enables stepless adjustment of the position of the roller assembly 32, which is beneficial for controlling the distance between the roller assembly 32 and the side 22 of the placement piece 20. Simultaneously, due to the inherent self-locking characteristics of the threaded structure, after fine-tuning the distance and applying tightening measures, the threaded engagement between the adjusting bolt 42 and the adjusting block 41 effectively restricts the sliding of the connecting seat 323, preventing or reducing lateral positional displacement of the roller assembly 32 when the pin 201 is pressed downwards, thus helping to maintain the structural stability of the roller assembly 32 during bending processes.

[0066] In some embodiments, the fastening measure may be to open a strip-shaped through hole on the pressure-bearing member 31 corresponding to the moving trajectory of the connecting seat 323, and at the same time, to provide a threaded hole on the top of the connecting seat 323 facing the pressure-bearing member 31. After the connecting seat 323 is moved to the target position using the adjusting bolt 42, the fixing bolt 43 is passed through the strip-shaped through hole and locked with the connecting seat 323, thereby further reinforcing the connecting seat 323 after the position has been adjusted.

[0067] It is understandable that the adjusting block 41 can be a metal boss directly integrally formed on the side of the pressure-bearing component 31, or it can be a threaded block that is independently machined and attached to the pressure-bearing component 31 by screws. The adjusting block 41 has an internal thread that is compatible with the adjusting bolt 42.

[0068] In some embodiments, such as Figure 7 As shown, the pin bending device 100 also includes a limiting structure 50. The limiting structure 50 is disposed between the base 10 and the pressure member 31, and the limiting structure 50 is configured to limit the minimum distance by which the pressure member 31 moves toward the base 10.

[0069] Specifically, the limiting structure 50 is positioned between the base 10 and the pressure-bearing member 31, ensuring that the pressure-bearing member 31 is stopped when it reaches the set minimum distance during its downward movement to press the pin 201. This design prevents the pressure-bearing member 31 from moving excessively downward, reducing the risk of excessive flattening or even structural breakage of the pin 201 under excessive pressure. Simultaneously, the limiting structure 50 precisely defines the pressing depth, ensuring that each bending and pressing action stops accurately at the same position. This maintains a stable state of the roller assembly 32 pressing the pin 201, thus helping to maintain consistency in the bending angle and dimensions of the pin 201 across multiple batches of processing.

[0070] It is understood that the limiting structure 50 can be set at the diagonal position between the pressure-bearing member 31 and the base 10, or multiple structures can be symmetrically distributed along the periphery of the pressure-bearing member 31 to maintain the force balance and stable posture of the pressure-bearing member 31 when it is blocked by the limiting structure. This embodiment does not make specific limitations on this.

[0071] In some embodiments, such as Figure 7 As shown, the limiting structure 50 includes a first limiting part 51 and a second limiting part 52. The first limiting part 51 is disposed on the side of the pressure member 31 facing the base 10, and the second limiting part 52 is disposed on the side of the base 10 facing the pressure member 31. The first limiting part 51 abuts against the second limiting part 52 when the pressure member 31 moves closer to the base 10, thereby limiting the minimum distance by which the pressure member 31 moves closer to the base 10.

[0072] Specifically, the first limiting part 51 is disposed on the pressure-bearing member 31, and the second limiting part 52 is disposed on the base 10, with the first limiting part 51 and the second limiting part 52 arranged vertically opposite each other. During the downward movement of the pressure-bearing member 31, the first limiting part 51 moves synchronously with the pressure-bearing member 31 and eventually abuts against the second limiting part 52 on the base 10. The abutting cooperation between the first limiting part 51 and the second limiting part 52 limits the minimum distance, which helps to prevent the pressure-bearing member 31 from being excessively pressed down due to excessive external force, reduces the possibility of excessive flattening or even structural breakage of the pin 201 under excessive pressure, and also helps to maintain the consistency of the bending angle of the pin 201 of the electronic device 200 in multiple batches of processing.

[0073] It is understood that the specific structural form of the first limiting part 51 and the second limiting part 52 can be a combination of limiting screw and limiting pin, a combination of fixing boss and bearing surface, or a combination of mutually compatible stepped blocks, etc. Furthermore, at least one of the first limiting part 51 and the second limiting part 52 can be a height-adjustable structure. For example, the first limiting part 51 can be a long bolt screwed onto the pressure member 31. By screwing in or out, the protrusion length of the long bolt toward the base 10 can be changed, thereby flexibly adjusting the value of the minimum spacing. This embodiment does not specifically limit this.

[0074] In some embodiments, such as Figures 4 to 7 As shown, the pin bending device 100 also includes an elastic pin 60. The elastic pin 60 is disposed on the side of the pressure member 31 near the base 10, and when the pressure member 31 moves closer to the base 10, the elastic pin 60 abuts against the electronic device 200 to be bent placed on the placement surface 21.

[0075] Specifically, the elastic ejector pin 60 is positioned on the side of the pressure-bearing member 31 near the base 10. During the downward movement of the pressure-bearing member 31 towards the base 10, the elastic ejector pin 60 contacts and abuts against the electronic device 200 on the placement surface 21 before the roller assembly 32. The elastic ejector pin 60 has elastic deformation capability, allowing it to retract during the continuous downward stroke of the pressure-bearing member 31 and continuously apply a clamping force towards the placement surface 21 to the electronic device 200. The clamping action of the elastic ejector pin 60 restricts the electronic device 200 to the placement surface 21, preventing or reducing positional displacement or warping of the electronic device 200 when bent and squeezed by the roller assembly 32. By using the elastic ejector pin 60 to abut and fix the main body of the electronic device 200 before bending, it is beneficial to maintain the positional stability of the electronic device 200 throughout the bending process, thereby improving the consistency of the bending dimensions of the pins 201.

[0076] It is understood that the elastic pin 60 can be a metal telescopic probe with a micro spring inside, or an elastic rod with a soft pad at the end. This embodiment does not specifically limit it.

[0077] It is understood that the number of elastic pins 60 can be one or more. When multiple elastic pins 60 are used, the multiple elastic pins 60 can be symmetrically distributed on the side of the pressure-bearing member 31 facing the base 10 to maintain the force balance of the electronic device 200 when it is pressed against. This embodiment does not specifically limit this.

[0078] It is understandable that the contact area where the elastic ejector pin 60 abuts against the electronic device 200 can be made of non-metallic materials such as polytetrafluoroethylene, silicone or rubber to reduce wear or scratches on the surface of the electronic device 200 housing when it is pressed down.

[0079] In some embodiments, such as Figure 7 As shown, the pin bending device 100 also includes a guide reset mechanism 70, which includes a guide shaft 71 and a reset spring 72. The guide shaft 71 is disposed on the base 10 along the height direction F3, and the pressure bearing member 31 is sleeved around the guide shaft 71 and slides along the guide shaft 71. The reset spring 72 is sleeved on the outside of the guide shaft 71 and is located between the base 10 and the pressure bearing member 31.

[0080] A guide shaft 71 is mounted on the base 10 along the height direction F3. A pressure-bearing member 31 is sleeved around the guide shaft 71, allowing the pressure-bearing member 31 to slide linearly along the guide shaft 71 as it moves downwards to press the pin 201. This guiding structure limits the horizontal displacement of the pressure-bearing member 31, avoiding or reducing tilting when subjected to uneven downward pressure, and helping to maintain the smooth movement of the roller assembly 32 as it presses the pin 201 downwards. Simultaneously, a return spring 72 is sleeved on the outside of the guide shaft 71 and provides support between the base 10 and the pressure-bearing member 31. When the pressure-bearing member 31 moves downwards, the return spring 72 is compressed and generates buffer resistance, which helps to reduce the mechanical impact force of the roller assembly 32 pressing down on the pin 201, reducing the risk of pin 201 deformation. When the external downward pressure is removed, the return spring 72 releases its compression deformation and applies an upward elastic force to the pressure bearing 31 in a direction away from the base 10. This elastic force automatically lifts the pressure bearing 31 and the roller assembly 32 back to their initial positions, which helps to improve the overall efficiency of the pin bending device 100 in continuous batch processing operations.

[0081] It is understood that the return spring 72 can be a cylindrical helical compression spring, a conical helical compression spring, or an energy storage component with compression and rebound capabilities, such as a high-strength polyurethane sleeve. This embodiment does not specifically limit this.

[0082] It is understood that the number of guide reset mechanisms 70 can be two, four or more, and multiple guide reset mechanisms 70 can be symmetrically distributed on the edge or four corners of the base 10. The position is not specifically limited in this embodiment.

[0083] The specific working process of the pin bending device 100 of this application will be described below.

[0084] In the specific operation of the pin bending device 100, the electronic device 200 to be bent is first placed on the placement surface 21 of the placement member 20. As the pressure member 31 moves downward along the height direction, the elastic pin 60 located below the pressure member 31 first abuts against the top of the electronic device 200. The elastic clamping force of the elastic pin 60 restricts the electronic device 200 on the placement surface 21, preventing the electronic device 200 from shifting its position when subjected to force.

[0085] The pressure-bearing member 31 continues to move downwards, causing the roller assembly 32 to contact the pin 201 of the electronic device 200 and roll downwards to apply pressure, effectively protecting the metal plating on the surface of the pin 201. During the downward rolling of the roller assembly 32, the elastic member 33 continuously applies an inward lateral pulling force to the roller assembly 32, causing the roller assembly 32 to conform to the side surface 22. Because the side surface 22 is inclined at an acute angle to the placement surface 21, the pin 201 will bend inwards.

[0086] When the pressure-bearing component 31 descends to the minimum distance, the first limiting part 51 on the pressure-bearing component 31 abuts against the second limiting part 52 on the base 10, and the pressure-bearing component 31 stops pressing down, avoiding deformation or breakage of the pin 201 due to excessive downward pressure. After the bending action is completed, the pressure-bearing component 31 moves upward, and the roller assembly 32 disengages from the pin 201. At this time, the pin 201, which has been overbent, rebounds, and the rebounded pin 201 falls back to the target bending angle, thereby effectively ensuring the dimensional accuracy of the pin 201 bending formation.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A pin bending device, characterized in that, include: Base; A placement component, disposed on the base, has a placement surface and a side surface. The placement surface is configured to place an electronic device to be bent. The side surface is connected to the placement surface at an angle, and the side surface is inclined from the connection point with the placement surface away from the placement surface in the height direction of the base, so that an acute angle is formed between the side surface and the placement surface. A bending assembly is movably disposed on the base along the height direction of the base, the bending assembly including a pressure-bearing member, a roller assembly and an elastic member; The pressure-bearing member is disposed above the base and is configured to move relative to the base in a direction close to or away from the placement surface; The roller assembly extends along a first direction and is rotatably connected to the pressure member. The roller assembly is configured to be disposed corresponding to the side surface so that, driven by the pressure member, it moves along a path close to the placement surface to press the pin of the electronic device to be bent onto the placement surface, or moves along a path away from the placement surface to disengage from the pin. The elastic element is connected to the roller assembly and is configured to apply a force close to or pressing against the side of the roller assembly when the roller assembly presses against the pin, so that the roller assembly presses the pin against the side. Wherein, the first direction and the height direction intersect.

2. The pin bending device according to claim 1, characterized in that, The inclination angle of the side relative to the height direction of the base is α, which satisfies: 2°≤α≤8°.

3. The pin bending device according to claim 1, characterized in that, The roller assembly includes: Two bearing seats, the two bearing seats are spaced apart along a first direction and are both connected to the pressure-bearing member, the bearing seats extend along the height direction of the base; A roller assembly, rotatably connected between the two bearing seats and located at the end of the bearing seat opposite to the pressure-bearing member.

4. The pin bending device according to claim 3, characterized in that, The roller assembly also includes: A connecting seat is disposed on the side of the pressure-bearing member near the base, and the connecting seat extends along the first direction. The two bearing seats are respectively connected to the two ends of the connecting seat along the first direction.

5. The pin bending device according to claim 4, characterized in that, The pin bending device further includes: An adjustment structure, connected to the pressure-bearing member and the roller assembly, is configured to allow the roller assembly to move relative to the base in a second direction to adjust the spacing of the roller assembly relative to the side. The second direction, the first direction, and the height direction intersect each other.

6. The pin bending device according to claim 5, characterized in that, The adjustment structure includes an adjustment block and an adjustment bolt, wherein the adjustment block is disposed on one side of the pressure-bearing member along the second direction; The adjusting bolt passes through the adjusting block and is connected to the connecting seat. The adjusting bolt is configured to drive the connecting seat to move when rotated, so that the connecting seat drives the roller assembly to move in the second direction.

7. The pin bending device according to any one of claims 1-6, characterized in that, The pin bending device further includes: A limiting structure is disposed between the base and the pressure-bearing member, the limiting structure being configured to restrict the pressure-bearing member from moving closer to the base by a minimum distance.

8. The pin bending device according to claim 7, characterized in that, The limiting structure includes a first limiting part and a second limiting part; The first limiting part is disposed on the side of the pressure-bearing member facing the base, and the second limiting part is disposed on the side of the base facing the pressure-bearing member; The first limiting part is used to abut against the second limiting part when the pressure-bearing member moves closer to the base, so as to limit the minimum distance at which the pressure-bearing member moves closer to the base.

9. The pin bending device according to any one of claims 1-6, characterized in that, The pin bending device further includes: An elastic pin is disposed on the side of the pressure member near the base, and the elastic pin is configured to abut against the electronic device to be bent, which is placed on the placement surface, when the pressure member moves closer to the base.

10. The pin bending device according to any one of claims 1-6, characterized in that, The placement member has two said sides, which are arranged opposite to each other; The bending assembly includes two roller assemblies and two elastic elements. The two roller assemblies are respectively disposed on the two sides, and the two elastic elements are connected between the two roller assemblies.

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