A plug-in shaping jig

Abstract

The utility model relates to a kind of shaping jigs of plug-in, including substrate;Substrate is equipped with tool rest;Tool rest is equipped with multiple positioning holes;The lower side of positioning hole is throughly provided with first escape passage;Jig further includes cutting assembly and bending assembly;Cutting assembly includes tool rest and first drive module;Tool rest is equipped with multiple tool bits;First drive module moves tool rest to the direction of first escape passage to make multiple tool bits extend into first escape passage and cut the material of the pin of corresponding multiple plug-in, or drive multiple tool bits on tool rest away from plug-in;Compared with pure artificial shaping, this shaping jig is designed flexibly, can adapt to the shaping requirement of different length pin by adjusting, operation is relatively simple, the shaping result of each plug-in pin is more consistent, effectively solve the unstable quality problem caused by manual operation, it is very suitable for efficient, consistent good shaping treatment to plug-in in trial production stage or small batch production.

Description

Technical Field

[0001] This utility model relates to a shaping fixture for plug-in components. Background Technology

[0002] During the R&D and pilot production phases of electronic products, the leads of through-hole components on PCBAs (Printed Circuit Board Assemblies) often need to be cut and bent before installation. This shaping is crucial to ensure the components are securely and accurately mounted on the PCB, facilitating subsequent soldering and ultimately guaranteeing reliable circuit connections. Unshaped leads may have issues such as angular deviations, inconsistent heights, or excessive lengths. Direct soldering can lead to misalignment between leads and pads, bridging short circuits, cold solder joints, or insufficient mechanical strength, affecting the product's electrical performance and long-term stability. Therefore, in the space-constrained PCB layout, shaping the leads of through-hole components is essential to avoid interference and ensure proper electrical clearance.

[0003] Currently, for small-batch component shaping needs, manual shaping is the primary method. Operators typically use tools such as needle-nose pliers to manually adjust the component pins to the required angle and shape, and then cut off any excess pins. While this method has low initial investment costs, it is inefficient, and the consistency of shaping results is poor due to human factors, making it difficult to guarantee product quality stability. This is especially true for components with a large number of pins or complex shape requirements, where manual operation is even more difficult. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a shaping fixture for plugs, in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a shaping fixture for plug-in, comprising a base plate; a blade holder is provided on the base plate; the blade holder is provided with a plurality of positioning holes for vertical insertion of plug-in; a first clearance channel is provided below the positioning holes for the pins of the plug-in to be suspended and placed; the fixture further comprises a cutting component for cutting the plug-in, and a bending component for bending the plug-in on the blade holder to one side; the cutting component comprises a blade support provided on one side of the blade holder, and a first driving module fixedly connected to the blade support; the end of the blade support facing the first clearance channel is provided with a plurality of blades corresponding one-to-one with the positioning holes; the first driving module drives the blade support to move toward the first clearance channel so that the plurality of blades extend into the first clearance channel to cut the corresponding pins of the plurality of plug-in, or drives the blade support to move away from the first clearance channel so that the plurality of blades move away from the plug-in.

[0006] The shaping fixture for the plug-in described in this utility model has all the connecting lines of the cutting heads arranged in an arc shape along the width direction of the cutting heads; the cutting heads on both sides of the cutting head support are symmetrically arranged with the center line of the connecting lines of all the cutting heads as the line of symmetry.

[0007] In the shaping fixture for plug-in described in this utility model, during the process of the first driving module driving the cutter holder to move towards the first clearance channel, the number of plug-in cut by the multiple cutter heads each time is 1-2.

[0008] The shaping fixture for the plug-in described in this utility model has multiple positioning holes on both opposite sides of the tool holder, and the multiple positioning holes are arranged sequentially along the length direction of the tool holder; the tool holder is detachably connected to the substrate.

[0009] The shaping fixture for the plug-in described in this utility model further includes a clamping assembly for clamping and fixing the plug-in in the positioning hole.

[0010] The shaping fixture for the plug-in according to this utility model includes a clamping assembly comprising a pressure bar disposed on one side of the tool holder and a second driving module for driving the pressure bar closer to or further away from the tool holder; the tool holder is provided with a positioning groove corresponding to and communicating with the plurality of positioning holes above the first clearance channel; the side surface of the pressure bar facing the tool holder is provided with a clamping and positioning protrusion that extends into the positioning groove and cooperates with the inner surface of the positioning groove to clamp and fix the pins of the plurality of plug-ins;

[0011] The shaping fixture for the plug-in described in this utility model includes a pressure strip movably disposed between the blade holder and the cutting component; the pressure strip is provided with a second clearance channel that communicates with the first clearance channel and allows the blade holder or multiple blade heads to pass through;

[0012] The shaping fixture for the plug-in of this utility model includes a bending assembly comprising a push plate movably disposed on the upper surface of the tool holder, and a third drive module for driving the push plate to bend the pin portions of the plurality of plug-ins toward the upper surface of the pressure strip.

[0013] The shaping fixture for the plug-in described in this utility model has a raised strip on the upper surface of the pressure strip near the tool holder; the raised strip has a plurality of clearance grooves along its length that correspond one-to-one with the positioning holes and are for placing the bent end of the plug-in.

[0014] The shaping fixture for the plug-in described in this utility model has a tool holder with tool grooves arranged sequentially along its width at one end facing the tool holder; a plurality of tool heads are detachably installed in the tool grooves; the four sides at the upper end of the tool head and the four sides at the lower end of the tool head are all cutting edges.

[0015] The beneficial effects of this utility model are as follows: The shaping fixture of the plug-in has a simple structure and ingenious design, integrating three functions: positioning, cutting, and bending. When using this fixture, the operator first inserts the plug-in vertically into the positioning hole on the fixture base plate, so that the pins pass through the first clearance channel below and hang. Then, as needed, the cutting component on the fixture can be used to drive the cutter holder to move towards the first clearance channel, so that multiple cutters on the cutter holder cut multiple pins in the first clearance channel. Next, the bending component on the fixture is used to bend some pins of the plug-in in the multiple positioning holes in the specified direction, so that the pins form a shape and angle that meets the welding requirements. Compared with purely manual shaping, this fixture is flexible in design and can be adjusted to adapt to the shaping requirements of pins of different lengths. The operation is relatively simple, and the shaping result of each plug-in pin is more consistent, effectively solving the problem of quality instability caused by manual operation. It is very suitable for efficient and consistent shaping of plug-in in the trial production stage or small batch production, thereby effectively controlling costs and improving production flexibility while ensuring a certain production efficiency and quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of a shaping fixture for a plug-in according to a preferred embodiment of the present invention;

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle tool holder 12;

[0019] Figure 3 yes Figure 1 A schematic diagram of the structure of the middle cutting component 13;

[0020] Figure 4 yes Figure 1 Schematic diagram of the structure of the middle bending component 14;

[0021] Figure 5 yes Figure 1 A schematic diagram of the structure of the clamping assembly 15. Detailed Implementation

[0022] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0025] Furthermore, the terms indicating orientation, such as "up, down, front, back, left, right, upper end, pin, longitudinal," etc., are all based on the posture and position of the device or equipment described in this solution during normal use.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0027] A preferred embodiment of this utility model provides a shaping fixture for a plug-in, such as... Figure 1-5As shown, the fixture includes a base plate 11; a cutter holder 12 is provided on the base plate 11; the cutter holder 12 is elongated; the cutter holder 12 is provided with multiple positioning holes 121 for vertical insertion of inserts 01. By vertically inserting the inserts into the preset positioning holes, the consistency and accuracy of each insert in the initial position can be ensured, laying the foundation for subsequent cutting and bending operations, greatly improving the shaping accuracy, and also playing a guiding and error-proofing role; optionally, the diameter of the positioning hole 121 decreases from top to bottom, which can position the insert with interference fit at a predetermined height of the positioning hole; a first clearance channel 122 is provided below the positioning hole 121 for the pins of the insert 01 to be suspended and placed; multiple positioning holes 121 are all connected to the first clearance channel 122; a fixture. It also includes a cutting component 13 for cutting the plug-in 01, and a bending component 14 for bending the plug-in 01 on the blade holder 12 to one side; the cutting component 13 includes a blade holder 131 disposed on one side of the blade holder 12, and a first drive module 132 fixedly connected to the blade holder 131; the blade holder 131 has a plurality of blades 133 corresponding one-to-one with the positioning holes 121 at one end facing the first clearance channel 122; the first drive module 132 drives the blade holder 131 to move toward the first clearance channel 122 so that the plurality of blades 133 extend into the first clearance channel 122 to cut the pins of the corresponding plurality of plug-ins 01, or drives the blade holder 131 to move away from the first clearance channel 122 so that the plurality of blades 133 move away from the plug-in 01. The first clearance channel 122 not only provides a stable hanging space for the plurality of pins, but more importantly, it provides a cutting space for the cutting component. The cutter head can directly extend into the channel for cutting, making the action more direct and reliable, and avoiding interference with the upper plug-in body or positioning hole; the first drive module can drive multiple cutter heads to move simultaneously each time, which can cut multiple plugs at the same time, significantly improving cutting efficiency, especially suitable for small batches but needing to process multiple plugs.

[0028] The shaping fixture for this plug-in has a simple and ingenious structure, integrating positioning, cutting, and bending functions. When using this fixture, the operator first vertically inserts the plug-in into the positioning hole on the fixture base, allowing the pins to suspend through the first clearance channel below. Then, as needed, the cutting component on the fixture can be used to drive the cutter holder towards the first clearance channel, causing multiple cutters on the cutter holder to cut multiple pins in the first clearance channel. Next, the bending component on the fixture is used to bend some pins of the plug-in in the multiple positioning holes in a specified direction, forming the pins into a shape and angle that meets welding requirements. Compared to purely manual shaping, this fixture design is flexible and can be adjusted to adapt to the shaping requirements of pins of different lengths. The operation is relatively simple, and the shaping results of each plug-in pin are more consistent, effectively solving the quality instability problem caused by manual operation. It is very suitable for efficient and consistent shaping of plug-ins in the trial production stage or small-batch production, thereby effectively controlling costs and improving production flexibility while ensuring a certain level of production efficiency and quality.

[0029] In this embodiment, the cutting edge surface of the blade 133 is tangent to the inner top surface of the first clearance channel 122, ensuring that the blade acts on the pin in the most direct and perpendicular manner. This results in high force transmission efficiency, a crisper and cleaner cutting action, and reduces the likelihood of "biting" or incomplete cutting, thus ensuring consistent cutting quality.

[0030] Furthermore, the first drive module is a drive cylinder, linear drive module, or lead screw drive module as used in the prior art; cutting metal pins requires overcoming the shear strength of the material. If multiple inserts are cut at once (especially if the insert material is hard or the pins are thick), the required shearing force will be very large; to overcome this problem, in this embodiment, the connecting lines of all the cutter heads 133 are arranged in an arc along the width direction of the cutter head 133, and this arc can be concave inward or outward; the cutter heads 133 on both sides of the cutter holder 131 are symmetrically arranged with the center line of the connecting lines of all the cutter heads 133 as the line of symmetry. Optionally, during the movement of the first drive module 132 driving the cutter holder 131 towards the first clearance channel 122, the number of inserts 01 cut by the multiple cutter heads 133 each time is 1-2, which greatly reduces the demand for cylinder force. With the special cutter head layout described above, the drive cylinder can drive one or two cutters to cut only 1-2 inserts at a time. This greatly reduces the total shearing force that the cylinder needs to overcome, significantly reducing the cylinder's workload and internal stress. This extends the cylinder's service life, reduces maintenance frequency and costs, and improves the reliability of the entire cutting assembly. It is particularly suitable for cost control and efficiency balance in small-batch production scenarios.

[0031] In repetitive cutting and bending operations, the edges of the positioning holes 121 are critical parts that directly bear pressure and wear. After prolonged use, the positioning holes on one side may wear and deform, leading to a decrease in positioning accuracy. To reduce costs, in this embodiment, multiple positioning holes 121 are provided on both opposite edges of the tool holder 12, and these multiple positioning holes 121 are arranged sequentially along the length of the tool holder 12. The tool holder 12 is detachably connected to the substrate 11 (e.g., using bolt structures, snap-fit ​​structures, etc., as in the prior art). When a positioning hole on one side fails due to wear or lacks accuracy, the operator can quickly remove the tool holder and align the intact positioning hole with the working area to continue insert shaping, minimizing production interruptions caused by fixture maintenance and ensuring production continuity. This greatly extends the service life of the entire tool holder 12, reduces the need to replace the entire tool holder or fixture due to wear on one side, and lowers maintenance costs and downtime.

[0032] Furthermore, in order to facilitate the subsequent bending and shaping of the pins at the end of the plug-in, the plug-in needs to be stably positioned at a predetermined height in the positioning hole; therefore, the fixture also includes a clamping component 15 for clamping and fixing the plug-in 01 in the positioning hole 121; through this clamping component, the fixture can also have the function of clamping the plug-in, thereby ensuring that each plug-in is fixed at the same preset height, and multiple plug-ins are cut and bent in this identical state, so that the final shaping result is highly consistent and meets the strict welding requirements.

[0033] Furthermore, such as Figure 1 and Figure 5 As shown, the clamping assembly 15 includes a pressure bar 151 disposed on one side of the tool holder 12, and a second drive module 152 for driving the pressure bar 151 closer to or further away from the tool holder 12. The second drive module can be a drive cylinder, a linear drive module, or a lead screw drive module in the prior art. The tool holder 12 is provided with a positioning groove 123 above the first clearance channel 122, which corresponds to and communicates with multiple positioning holes 121. The side surface of the pressure bar 151 facing the tool holder 12 is provided with a clamping positioning protrusion 153 that extends into the positioning groove 123 and cooperates with the inner surface of the positioning groove 123 to clamp and fix the pins of multiple plug-in 01. The clamping positioning protrusion 153 can directly and accurately apply clamping force to the pins, which ensures that all plug-ins are firmly and consistently fixed at a predetermined height and position before cutting and bending, providing a solid guarantee for the high-quality completion of subsequent processes.

[0034] Furthermore, the pressure bar 151 is movably disposed between the blade holder 12 and the cutting assembly 13; the pressure bar 151 is provided with a second clearance channel 154 that communicates with the first clearance channel 122 and allows the blade holder 131 or multiple blades 133 to pass through. The movement of the pressure bar 151 toward the clamping blade holder / away from the insert can be better coordinated with the forward / backward cutting movement of the cutting assembly. For example, the clamping insert can be fixed in the positioning hole by the pressure bar first, and then the cutting assembly can perform the action. This close arrangement simplifies the coordination of actions. Through the second clearance channel 154, when the cutting assembly 13 needs to perform the cutting action (i.e., the blade holder 131 moves with the blades 133 toward the first clearance channel 122), the pressure bar itself or the clamping positioning protrusions 153 on it will not collide or interfere with the moving blades 133. This is crucial for ensuring the smoothness and accuracy of the cutting action and the safe operation of the equipment.

[0035] In this embodiment, as Figure 1 and Figure 4 As shown, the bending assembly 14 includes a push plate 141 movably mounted on the upper surface of the cutter holder 12, and a third drive module 142 that drives the push plate 141 to bend the pin portions of multiple inserts 01 toward the upper surface of the pressure strip 151. The third drive module 142 employs existing technologies such as cylinders or electric push rods. The third drive module 142 only needs to provide a linear thrust to drive the push plate 141 to move; one end face of the push plate 141 directly acts on the pin portion of the insert end, achieving bending through a planar push.

[0036] Furthermore, after the plug pins are bent, the plug end is relatively fragile. During the entire bending process, the bent plug end needs a safe placement area to avoid being scratched, crushed, or accidentally deformed during subsequent operations (such as removing the plug) or contact with other components (such as the pressure strip surface). The upper surface of the pressure strip 151 is provided with a protrusion 155 on the side near the tool holder 12. The protrusion 155 has multiple clearance grooves 156 along its length direction, which correspond one-to-one with the positioning holes 121 and are used to place the bent plug end. When the push plate 141 completes the bending action, the plug will naturally fall into the corresponding clearance groove 156 on the protrusion 155 of the pressure strip 151 with its bending point as the axis. The clearance groove 156 can provide a dedicated, recessed placement space, effectively protecting the bent end and ensuring the integrity of the plug after shaping.

[0037] Furthermore, the cutting action is the most easily worn part of the fixture. When the cutter head 133 repeatedly cuts the pins, its blade will gradually become dull. To reduce costs, the cutter holder 131 is provided with cutter grooves 134 along its width direction at the end facing the cutter base 12. Multiple cutter heads 133 are detachably installed in the cutter grooves 134. The four edges at the upper end and the four edges at the lower end of the cutter head 133 are all cutting edges, so that one cutter head can be used as eight cutting edges, which is highly practical. When any cutting edge of one or more cutter heads wears to a certain extent and the cutting quality cannot be guaranteed, it can be easily removed from the cutter groove, its direction changed, and the good cutting edge is then facing the first clearance channel. This further extends the effective service life of a single cutter head.

[0038] Furthermore, the third drive module 142 is disposed below the base plate 11; the output shaft of the third drive module 142 is fixedly connected to the push plate 141 via a connecting plate 143; the connecting plate 143 is provided with a third clearance channel 144 that communicates with the first clearance channel 122 and allows the tool holder 131 or multiple tool heads 133 to pass through; the central axis of the first clearance channel 122, the central axis of the second clearance channel 154, and the central axis of the third clearance channel 144 are all located on the same straight line. Placing the drive module below the base plate is a common mechanical design technique, which can free up space on or above the worktable. The collinear clearance channel design allows the channel structure to be made more compact and regular.

[0039] Furthermore, the fixture is also equipped with a first switch button 16 electrically connected to and controlled by the first drive module, a second switch button 17 electrically connected to and controlled by the second drive module, and a third switch button 18 electrically connected to and controlled by the third drive module. Operators can flexibly press the corresponding buttons to perform cutting, pressing, or bending actions according to the actual production cycle and the status of the inserts. The electrical connections involved are common connection methods in the prior art. This not only greatly improves the convenience and efficiency of operation, but also reduces the complexity of operation and maintenance, making it very suitable for small-batch, customized production or scenarios where the skill requirements for operators are not high.

[0040] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A shaping fixture for inserts, characterized in that, The fixture includes a base plate; a blade holder is provided on the base plate; the blade holder has multiple positioning holes for vertical insertion of inserts; a first clearance channel is provided below the positioning holes for suspending the pins of the inserts; the fixture also includes a cutting component for cutting the inserts, and a bending component for bending the inserts on the blade holder to one side; the cutting component includes a blade holder provided on one side of the blade holder, and a first drive module fixedly connected to the blade holder; the end of the blade holder facing the first clearance channel has multiple blades corresponding to the positioning holes; the first drive module drives the blade holder to move towards the first clearance channel so that the multiple blades extend into the first clearance channel to cut the corresponding pins of the multiple inserts, or drives the blade holder to move away from the first clearance channel so that the multiple blades move away from the inserts.

2. The shaping fixture for the plug-in according to claim 1, characterized in that, The connecting lines of all the cutting heads are arranged in an arc shape along the width direction of the cutting head; the cutting heads on both sides of the cutting head support are symmetrically arranged with the center line of the connecting lines of all the cutting heads as the line of symmetry.

3. The shaping fixture for the plug-in according to claim 2, characterized in that, During the process of the first drive module driving the blade holder to move towards the first clearance channel, the number of inserts cut by the multiple blades each time is 1-2.

4. The shaping fixture for the plug-in according to claim 1, characterized in that, The tool holder has multiple positioning holes on its opposite sides, and the multiple positioning holes are arranged sequentially along the length of the tool holder; the tool holder is detachably connected to the substrate.

5. The shaping fixture for the plug-in according to any one of claims 1-4, characterized in that, The fixture also includes a clamping assembly for clamping and fixing the insert in the positioning hole.

6. The shaping fixture for the plug-in according to claim 5, characterized in that, The clamping assembly includes a pressure bar disposed on one side of the tool holder, and a second driving module for driving the pressure bar to move closer to or away from the tool holder; the tool holder is provided with a positioning groove corresponding to and communicating with the plurality of positioning holes above the first clearance channel; the side surface of the pressure bar facing the tool holder is provided with a clamping and positioning protrusion that extends into the positioning groove and cooperates with the inner surface of the positioning groove to clamp and fix the pins of the plurality of plug-ins.

7. The shaping fixture for the plug-in according to claim 6, characterized in that, The pressure strip is movably disposed between the blade holder and the cutting assembly; the pressure strip is provided with a second clearance channel that communicates with the first clearance channel and allows the blade holder or multiple blades to pass through.

8. The shaping fixture for the plug-in according to claim 6, characterized in that, The bending assembly includes a push plate movably disposed on the upper surface of the cutter holder, and a third drive module that drives the push plate to bend the pin portions of the plurality of inserts toward the upper surface of the pressure strip.

9. The shaping fixture for the plug-in according to claim 8, characterized in that, The upper surface of the pressure strip is provided with a protrusion on the side near the knife holder; the protrusion is provided with a plurality of clearance grooves along its length direction, which correspond one-to-one with the positioning holes and are for placing the end of the bent plug.

10. The shaping fixture for the plug-in according to claim 1, characterized in that, The blade holder has a series of blade grooves along its width at one end facing the blade base; multiple blades are detachably installed in the blade grooves; the four sides at the upper end and the four sides at the lower end of each blade are cutting edges.

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