Electronic component lead cutting jig
By introducing an adjustable spacing design for the moving and fixed modules and a clamping mechanism into the lead trimming fixture, the problems of lead bending and length adjustment are solved, enabling efficient and flexible electronic component trimming operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINYUN INTELLIGENT ELECTRONICS (SUZHOU) CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-30
AI Technical Summary
Existing lead trimming fixtures cannot effectively prevent lead bending when fixing electronic components, and cannot flexibly adjust the lead trimming length, resulting in low production efficiency and unsuitability for the production of circuit boards of different specifications.
A mold comprising a moving module and a fixed module was designed. The distance between the moving module and the fixed module is adjustable via a translation mechanism. A clamping mechanism fixes the pin at the pin trimming position. Combined with the eccentric hinge structure of the clamping plate and the column, the pin is stably fixed and its length is adjustable.
It effectively prevents pin bending, improves the convenience and efficiency of operation, adapts to the production needs of circuit boards of different specifications, and reduces the frequency of mold replacement.
Smart Images
Figure CN224424098U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board processing technology, specifically to a jig for cutting leads of electronic components. Background Technology
[0002] In circuit board manufacturing, it is often necessary to trim the lead lengths of electronic components. The most traditional method of trimming leads is purely manual, which is time-consuming, labor-intensive, and results in inconsistent lead lengths. With the development of the industry, professional lead trimming fixtures have gradually replaced the traditional manual method.
[0003] Existing lead trimming fixtures typically include a mold and a cutter. The mold is used to fix the electronic component and limit the trimming length of the lead (the length extending out of the mold) so that the lead length remaining on the electronic component has a high degree of consistency after the cutter trims the exposed part of the lead along the outer wall of the mold.
[0004] The drawback of existing lead-cutting fixtures is that when the mold fixes electronic components, it is usually fixed to the package shell of the electronic components. The lead is not effectively fixed at the trimming position near the lead. The trimmed lead may be bent occasionally (the lead left on the electronic component tilts from the root). The bent lead needs to be straightened before it can be used for subsequent insertion and soldering operations on the circuit board.
[0005] The existing lead trimming fixture mold cannot adjust the trimming length of electronic component leads. When it is necessary to adjust the length of the retained leads for different specifications (mainly thickness) of circuit boards during production, the mold must be replaced. Utility Model Content
[0006] The purpose of this utility model is to provide a cutting fixture for electronic components.
[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:
[0008] An electronic component lead trimming fixture includes a base plate, a backing plate, a mold, a cutting tool, and a driving mechanism. The backing plate is erected and fixed on the base plate, the mold is disposed on the base plate, and the driving mechanism is connected to the backing plate for driving the cutting tool to trim the leads of the electronic component. The mold includes a base, a moving module, and a fixed module. The base is fixedly connected to the base plate, the fixed module is fixedly disposed on the base and aligned with the cutting tool, and the fixed module is provided with a clamping mechanism to fix the leads at the trimming position near the leads of the electronic component.
[0009] The top of the moving module is provided with a receiving slot for placing electronic components. The moving module is connected to the base through a translation mechanism to adjust the distance between it and the fixed module, so that the length of the electronic component's pins extending out of the fixed module is adjustable.
[0010] As a further improvement of the present invention, the clamping mechanism includes a column and a clamping plate. The column is fixed at both ends of the top surface of the fixed module. The clamping plate is disposed between the two columns. The clamping plate is hinged to the column and the bottom of the clamping plate is provided with an arc surface. The arc surface is eccentrically disposed at the hinge point between the clamping plate and the column.
[0011] As a further improvement of the present invention, the translation mechanism includes a screw, a knob, a slide groove, a slider, and a baffle. The slide groove is formed on the base, the slider is located in the slide groove and is fixedly connected to the moving module, the screw is arranged along the slide groove and is threadedly connected to the base, the knob is fixedly connected to one end of the screw that is exposed on the base, the other end of the screw is arranged through the slider, and the baffle is located on both sides of the slider and is fixedly connected to the screw.
[0012] As a further improvement of the present invention, the driving mechanism includes a handle, a pressure rod, a pressure plate, a bracket, and a guide cylinder. The bracket is fixedly connected to the upper part of the back plate, the guide cylinder is fixedly connected to the bracket, the pressure rod is vertically arranged through the guide cylinder, the lower end of the pressure rod is fixedly connected to the pressure plate, and the cutter is fixedly mounted on the bottom of the pressure plate.
[0013] A connecting rod is provided between the pressure rod and the handle. One end of the connecting rod is hinged to the handle, and the other end of the connecting rod is hinged to the top of the pressure rod. The handle is also hinged to the bracket.
[0014] As a further improvement of this utility model, the handle is an L-shaped structure.
[0015] As a further improvement of this utility model, the top surface of the base is provided with scale markings, which are located close to the fixed module and extend along the moving direction of the moving module.
[0016] As a further improvement of this utility model, the top of the fixed module is provided with a groove for placing pins.
[0017] Compared with the prior art, the technical advantages of this utility model are as follows:
[0018] The mold of this utility model includes a moving module and a fixed module. Before trimming the pins of electronic components, the pins are fixed near the trimming position by the clamping mechanism on the fixed module. This can prevent the pins left on the electronic components after trimming from tilting and bending from the root of the pin (the root refers to the connection between the pin and the electronic component).
[0019] The clamping mechanism's clamping plate is hinged to the column, and the bottom of the clamping plate has an arc surface. The arc surface and the hinge point between the clamping plate and the column are eccentrically positioned. By swinging the clamping plate, the distance between the arc surface at the bottom of the clamping plate and the top of the fixed module can be adjusted, thus clamping or releasing the pins. At the same time, the clamping plate can fix the pins of multiple electronic components at once, offering advantages such as convenient operation and high efficiency.
[0020] By adjusting the distance between the moving module and the fixed module using a translation mechanism, the length of the pins extending beyond the fixed module can be adjusted, which is the trimmed length of the electronic component pins. When it is necessary to adjust the length of the pins remaining after trimming in the production process (the length of the remaining pins is equal to the initial pin length minus the length of the pin trimmed; the initial pin length of electronic components of the same model is the same standard length), it is only necessary to adjust the position of the moving module using the translation mechanism, without replacing the moving module, thus exhibiting good versatility. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of an electronic component lead-cutting fixture according to a specific embodiment of this utility model;
[0022] Figure 2 yes Figure 1 A magnified schematic diagram of the local structure at point A;
[0023] Figure 3 This is a schematic diagram showing the state of the clamp loosening the electronic component pins;
[0024] Figure 4 This is a schematic diagram showing the state of the clamps holding the pins of electronic components.
[0025] Figure 5 This is a schematic diagram showing the cooperation relationship between the baffle and the slider. Detailed Implementation
[0026] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.
[0027] Please see Figures 1 to 5 An electronic component lead trimming fixture includes a base plate 1, a backing plate 2, a mold, a cutting tool 4, and a driving mechanism. The backing plate 2 is erected and fixed on the base plate 1, the mold is set on the base plate 1, and the driving mechanism is connected to the backing plate 2 to drive the cutting tool 4 to trim the leads of the electronic component 100.
[0028] In this embodiment, the driving mechanism includes a handle 51, a pressure rod 52, a pressure plate 53, a bracket 54, and a guide cylinder 55. The handle 51 has an L-shaped structure. The bracket 54 is fixedly connected to the upper part of the back plate 2 by screws. The guide cylinder 55 is fixedly connected to the bracket 54. The pressure rod 52 is vertically arranged through the guide cylinder 55 (the pressure rod 52 can slide inside the guide cylinder 55). The lower end of the pressure rod 52 is fixedly connected to the pressure plate 53. The cutter 4 is fixedly mounted on the bottom of the pressure plate 53.
[0029] A connecting rod 56 is provided between the pressure rod 52 and the handle 51. One end of the connecting rod 56 is hinged to the handle 51, and the other end of the connecting rod 56 is hinged to the top of the pressure rod 52. The handle 51 is also hinged to the bracket 54.
[0030] When the worker presses down on handle 51 and swings it, handle 51 drives pressure rod 52 downward via connecting rod 56. Pressure rod 52 drives pressure plate 53 downward, and pressure plate 53 drives cutter 4 downward. Cutter 4 cuts off the pin along the far end (the end where the pin protrudes) of fixed module 33. A guide rod can also be set to cooperate with pressure plate 53 to make the trajectory of pressure plate 53 and cutter 4 more stable when they move downward.
[0031] The mold includes a base 31, a moving module 32, and a fixed module 33. The base 31 is fixedly connected to the base plate 1. The fixed module 33 is fixedly mounted on the base 31 and aligned with the cutter 4. The fixed module 33 is provided with a clamping mechanism to fix the pin at the trimming position near the pin of the electronic component 100.
[0032] The top of the moving module 32 is provided with a receiving slot 321 for placing electronic components 100. The moving module 32 is connected to the base 31 through a translation mechanism to adjust the distance between it and the fixed module 33, so that the length of the pins of the electronic components 100 extending out of the fixed module 33 is adjustable.
[0033] Furthermore, the clamping mechanism includes a column 61 and a clamping plate 62. The column 61 is fixed at both ends of the top surface of the fixed module 33, and the clamping plate 62 is disposed between the two columns 61. The clamping plate 62 is hinged to the column 61, and the bottom of the clamping plate 62 has an arc surface. The arc surface is eccentrically positioned at the hinge point between the clamping plate 62 and the column 61. Figure 3 , 4 As shown, the distance between the eccentrically set arc surface of the clamping plate 62 and the top of the fixed module 33 will change when the clamping plate 62 swings. The distance between the bottom arc surface of the clamping plate 62 and the top of the fixed module 33 can be adjusted by the worker manually moving the clamping plate 62 to clamp or loosen the pin.
[0034] Furthermore, the translation mechanism includes a screw 71, a knob 72, a groove 73, a slider 74, and a baffle 75. The groove 73 is formed on the base 31. The slider 74 is located in the groove 73 and is fixedly connected to the moving module 32. The screw 71 is arranged along the groove 73 and is threadedly connected to the base 31. The knob 72 is fixedly connected to one end of the screw 71 that is exposed on the base 31. The other end of the screw 71 is arranged through the slider 74. The baffle 75 is located on both sides of the slider 74 and is fixedly connected to the screw 71.
[0035] When the worker rotates the knob 72, the screw 71 rotates with the knob 72. Through the threaded engagement with the base 31, the screw 71 will move axially when rotating. The screw 71 and the slider 74 are not threadedly connected. The moving module 32 is moved by pushing and pulling the slider 74 through the baffle 75.
[0036] Furthermore, a scale mark 9 is provided on the top surface of the base 31. The scale mark 9 is located close to the fixed module 33 and extends along the moving direction of the moving module 32. The scale mark 9 is provided to facilitate workers' observation of the protruding length of the pins.
[0037] Furthermore, the top of the positioning module 33 is provided with a groove 331 for placing the pin. Placing the pin in the groove 331 can serve as a limit, preventing the pin from moving laterally when the clamping mechanism clamps the pin. When setting the groove 331, care should be taken that the depth of the groove 331 should not be too large, and when the pin is placed in the groove 331, the top of the pin needs to be higher than the groove 331 for clamping by the clamping plate 62.
[0038] This invention uses the adjustment of the position of the moving module 32 to determine the length of the remaining pins of the electronic component 100 after trimming. Taking an initial pin length of 2 cm for electronic component 100 that needs to be trimmed to 1 cm as an example: An electronic component 100 is placed on the receiving slot 321 of the moving module 32, with the end face of the electronic component 100 connected to the pin resting against the far end (closer to the fixed module 33) of the receiving slot 321. Then, the position of the moving module 32 is adjusted using a translation mechanism until the pin extends 1 cm beyond the fixed module 33. The adjustment of the moving module 32 is then complete. Subsequently, when trimming the pins of the same model of electronic component 100 to 1 cm, the position of the moving module 32 does not need to be moved or adjusted again. The position of the moving module 32 is readjusted only when it is necessary to change the remaining pin length of the electronic component 100 or to replace it with a different model of electronic component 100. The adjustment method is the same as in the example above.
[0039] When using this utility model, place the electronic components 100 one by one on the receiving slots 321 (there can be multiple receiving slots 321). When placing them, push the electronic components 100 so that the end face of the electronic component 100 with the pins is close to the far end face of the receiving slot 321. Move the clamping plate 62 to clamp the pins, and press down the handle 51 to move the cutter 4 down to cut off the protruding part of the pins. Then, move the clamping plate 62 in the opposite direction to release the pins and remove the cut electronic components 100 from the receiving slots 321.
[0040] Compared with the prior art, the technical advantages of this utility model are as follows:
[0041] The mold of this utility model includes a moving module 32 and a fixed module 33. Before trimming the pins of the electronic component 100, the pins are fixed near the trimming position by the clamping mechanism on the fixed module 33. This can prevent the pins left on the electronic component 100 after trimming from tilting and bending from the root of the pin (the root refers to the connection between the pin and the electronic component 100).
[0042] The clamping mechanism's clamping plate 62 is hinged to the column 61, and the bottom of the clamping plate 62 has an arc surface. The arc surface is eccentrically positioned at the hinge point between the clamping plate 62 and the column 61. By swinging the clamping plate 62, the distance between the arc surface at the bottom of the clamping plate 62 and the top of the fixed module 33 can be adjusted, thus clamping or releasing the pins. At the same time, the clamping plate 62 can fix the pins of multiple electronic components 100 at once, offering the advantages of convenient operation and high efficiency.
[0043] By adjusting the distance between the moving module 32 and the fixed module 33 through the translation mechanism, the length of the pin extending beyond the fixed module 33 can be adjusted, which is the trimmed length of the electronic component 100 pin. When it is necessary to adjust the length of the remaining pin after the electronic component is trimmed during the production process (the length of the remaining pin is equal to the initial pin length minus the length of the pin trimmed off; the initial pin length of the same model of electronic component 100 is the same standard length), it is only necessary to adjust the position of the moving module 32 through the translation mechanism, without replacing the moving module 32, which has good versatility.
[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although this utility model 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.
Claims
1. An electronic component lead trimming fixture, comprising a base plate, a support plate, a mold, a cutting tool, and a driving mechanism, wherein the support plate is erected and fixed on the base plate, the mold is disposed on the base plate, and the driving mechanism is connected to the support plate for driving the cutting tool to trim the leads of the electronic component, characterized in that, The mold includes a base, a moving module, and a fixed module. The base is fixedly connected to the bottom plate. The fixed module is fixedly mounted on the base and aligned with the cutting tool. The fixed module is provided with a clamping mechanism to fix the pins at the trimming position near the electronic component pins. The top of the moving module is provided with a receiving slot for placing electronic components. The moving module is connected to the base through a translation mechanism to adjust the distance between it and the fixed module, so that the length of the electronic component's pins extending out of the fixed module is adjustable.
2. The electronic component lead-cutting fixture according to claim 1, characterized in that, The clamping mechanism includes columns and clamping plates. The columns are fixed at both ends of the top surface of the fixed module. The clamping plates are disposed between the two columns. The clamping plates are hinged to the columns and the bottom of the clamping plates is provided with an arc surface. The arc surface is eccentrically disposed at the hinge point between the clamping plates and the columns.
3. The electronic component lead-cutting fixture according to claim 1, characterized in that, The translation mechanism includes a screw, a knob, a slide groove, a slider, and a baffle. The slide groove is formed on the base, the slider is located in the slide groove and is fixedly connected to the moving module, the screw is arranged along the slide groove and is threadedly connected to the base, the knob is fixedly connected to one end of the screw that is exposed on the base, the other end of the screw is arranged through the slider, and the baffle is located on both sides of the slider and is fixedly connected to the screw.
4. The electronic component lead-cutting fixture according to claim 1, characterized in that, The driving mechanism includes a handle, a pressure rod, a pressure plate, a bracket, and a guide cylinder. The bracket is fixedly connected to the upper part of the back plate, the guide cylinder is fixedly connected to the bracket, the pressure rod is vertically arranged through the guide cylinder, the lower end of the pressure rod is fixedly connected to the pressure plate, and the cutter is fixedly mounted on the bottom of the pressure plate. A connecting rod is provided between the pressure rod and the handle. One end of the connecting rod is hinged to the handle, and the other end of the connecting rod is hinged to the top of the pressure rod. The handle is also hinged to the bracket.
5. The electronic component lead-cutting fixture according to claim 4, characterized in that, The handle has an L-shaped structure.
6. The electronic component lead-cutting fixture according to claim 1, characterized in that, The base has a scale mark on its top surface, which is located close to the fixed module and extends along the moving direction of the moving module.
7. The electronic component lead-cutting fixture according to claim 1, characterized in that, The top of the fixed module is provided with a groove for placing pins.