Electronic component lead pre-bending device

Abstract

The utility model discloses an electronic component lead pre-bending device, which belongs to the technical field of electronic component processing equipment and comprises a moving and cutting mechanism and bending mechanisms symmetrically arranged at two ends of the moving and cutting mechanism. The moving and cutting mechanism comprises a transmission unit and an element fixing unit, the transmission unit drives a fixing base to move through a ball screw, and the element fixing unit fixes an electronic element through a clamping air cylinder and a limiting block. The bending mechanism comprises a first rack and a second rack which are respectively provided with a thread hooking unit and a thread folding unit, the thread hooking unit hooks the lead through a shifting needle, and the thread folding unit wraps the lead through a hollow thread shifting rod for bending; the rack is provided with a lifting motor and a feeding motor, so that the unit moves in the X-axis direction and the Y-axis direction. According to the utility model, the moving and cutting mechanism and the bending mechanism are matched to complete a complex line folding process, the lead screw drives the element fixing unit to reciprocate, feeding and discharging of a left station and a right station are synchronous, the line shifting rod guarantees the line folding stability, and the line shifting rod is chamfered to prevent a lead from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of electronic component processing equipment technology, and in particular to an electronic component lead pre-bending device. Background Technology

[0002] In the manufacturing process of electronic components, pre-bending the leads is a crucial step. This is especially true for common-mode inductors, where the lead bending process is quite complex. Traditional bending equipment and methods suffer from low efficiency and poor stability, making them unsuitable for large-scale production. Furthermore, ensuring the accuracy and stability of lead bending, as well as synchronizing loading and unloading to improve machine speed, are current technical challenges that need to be addressed. Utility Model Content

[0003] The purpose of this invention is to provide a pre-bending device for electronic component leads. By cooperating with the cutting mechanism and the bending mechanism and using screw drive, the device achieves synchronous feeding and unloading of materials at the left and right workstations. The device uses a wire guide rod to ensure the stability of the bending process and the chamfer of the wire guide rod to prevent damage to the leads. It can efficiently complete the complex bending process of electronic component leads such as common mode inductors, and significantly improve the machine speed, processing accuracy and stability.

[0004] To achieve the above objectives, this utility model provides an electronic component lead pre-bending device, including a transfer cutting mechanism. The transfer cutting mechanism includes a transmission unit and a component fixing unit. The component fixing unit is disposed on the upper surface of the transmission unit. Bending mechanisms are symmetrically arranged at both ends of the transfer cutting mechanism. The bending mechanism includes a first frame and a second frame. The first frame and the second frame are symmetrically arranged on both sides of the transfer cutting mechanism. A hooking unit is provided at the upper end of the first frame, and a bending unit is provided at the upper end of the second frame.

[0005] Preferably, the transmission unit includes a base, a first rotary motor, a second rotary motor, a ball screw, and a fixed seat. The first rotary motor and the second rotary motor are symmetrically arranged at both ends of the base. The two ends of the ball screw are respectively connected to the output ends of the first rotary motor and the second rotary motor. Through holes are opened on both sides of the fixed seat, through which the ball screw passes. The fixed seat can reciprocate along the ball screw. A component fixing unit is fixedly provided on the upper surface of the fixed seat.

[0006] Preferably, the component fixing unit includes a base plate, the lower surface of the base plate is fixedly connected to the upper surface of the fixing seat, and the upper surface of the base plate is provided with a plurality of clamping cylinders, which rotate relative to the base plate. The upper end of the clamping cylinder is symmetrically provided with a first limiting block and a second limiting block, which are used for fixing electronic components.

[0007] Preferably, the hooking unit includes a first base, a first drive motor, a first linkage, and a hook. The number of the first linkage and the hook is the same as the number of the clamping cylinders. The first drive motor and several first linkages are fixedly mounted on the upper surface of the first base. The output end of the first drive motor is connected to the input ends of several first linkages through a rack and pinion linkage assembly. The fixed end of the hook is connected to the output end of the first linkage. The hook is arranged horizontally, and the rotating end of the hook has a forked structure for hooking electronic component leads.

[0008] Preferably, the zigzag unit includes a second base, a second drive motor, a second linkage, and a wire-pulling rod. The number of the second linkage and the wire-pulling rod is the same as the number of the clamping cylinders. The second drive motor and several second linkages are sequentially arranged on the upper surface of the second base. The output end of the second drive motor is connected to the input end of several second linkages through a rack and pinion linkage assembly. The upper end of the wire-pulling rod is connected to the output end of the second linkage through a connector. The wire-pulling rod is vertically arranged and is a hollow tube with an opening at the lower end for covering the leads of electronic components.

[0009] Preferably, both the lower surfaces of the first frame and the lower surfaces of the second frame are provided with lifting motors. The lifting motors are used for the vertical displacement of the hook line unit and the folded line unit. The side surfaces of the first frame and the second frame are each connected to a first feed motor and a second feed motor, which are used for the horizontal movement of the hook line unit and the folded line unit.

[0010] Preferably, the lower opening of the dial lever is chamfered to prevent the edge of the lower opening of the dial lever from damaging the leads of electronic components.

[0011] Therefore, the present invention employs the above-mentioned electronic component lead pre-bending device, which has the following technical effects:

[0012] (1) Through the cooperation of the cutting mechanism and the bending mechanism, the complex bending process of electronic component leads can be completed, which improves the processing accuracy and efficiency;

[0013] (2) The fixed fit of inserting the connector into the wire using the wire lever ensures the stability of the wire bending process and reduces the defect rate. In addition, the lower end of the wire lever is chamfered to avoid damage to the lead wire.

[0014] (3) A screw drive mechanism is adopted, which allows the component fixing unit to move back and forth between the left and right folding mechanisms, realizing the mutual cooperation between the two folding mechanisms. When the left half of the component fixing unit enters the left folding mechanism, the electronic component on the right half of the component fixing unit can be removed and replaced with an unfolded electronic component; when the right half of the component fixing unit enters the right folding mechanism, this action is repeated, ensuring the synchronous feeding and unloading, and greatly improving the running speed of the machine.

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an electronic component lead pre-bending device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the cutting mechanism in an electronic component lead pre-bending device of this utility model;

[0018] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the hook wire unit structure in an electronic component lead wire pre-bending device of this utility model;

[0020] Figure 5 yes Figure 4 Enlarged view at point B in the middle;

[0021] Figure 6 This is a top view of the hook wire unit in an electronic component lead wire pre-bending device of this utility model;

[0022] Figure 7 This is a schematic diagram of the broken line unit structure in an electronic component lead pre-bending device of this utility model;

[0023] Figure 8 This is a side view of the folded line unit in an electronic component lead pre-bending device of this utility model;

[0024] Figure 9 yes Figure 7 Enlarged view of point C in the middle.

[0025] Figure Labels

[0026] 1. Cutting mechanism; 11. Transmission unit; 111. Base; 112. First rotating motor; 113. Second rotating motor; 114. Ball screw; 115. Fixed seat; 12. Component fixing unit; 121. Base plate; 122. Clamping cylinder; 123. First limit block; 124. Second limit block; 2. Bending mechanism; 21. First frame; 22. Second frame; 23. Wire hooking unit; 231. First base; 232. First transmission motor; 233. First linkage; 234. Needle; 24. Folding unit; 241. Second base; 242. Second transmission motor; 243. Second linkage; 244. Wire guide rod; 3. Lifting motor; 4. First feed motor; 5. Second feed motor; 6. Transmission gear; 7. Conveyor belt. Detailed Implementation

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0028] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] like Figure 1 As shown, an electronic component lead pre-bending device includes a cutting mechanism 1 and bending mechanisms 2 symmetrically arranged at both ends of the cutting mechanism 1.

[0030] like Figures 2 to 3 As shown, the cutting mechanism 1 includes a transmission unit 11 and a component fixing unit 12. The transmission unit 11 includes a base 111, a first rotary motor 112, a second rotary motor 113, a ball screw 114, and a fixed seat 115. The first rotary motor 112 and the second rotary motor 113 are symmetrically arranged at both ends of the base 111, and both ends of the ball screw 114 are connected to the output ends of the first rotary motor 112 and the second rotary motor 113, respectively. Through holes are provided on both sides of the fixed seat 115, through which the ball screw 114 passes, allowing the fixed seat 115 to move along the ball screw 114.

[0031] The component fixing unit 12 includes a base plate 121. The lower surface of the base plate 121 is fixedly connected to the upper surface of the fixing seat 115. The upper surface of the base plate 121 is provided with a plurality of clamping cylinders 122. The clamping cylinders 122 can rotate relative to each other on the base plate 121. Each clamping cylinder 122 is symmetrically provided with a first limiting block 123 and a second limiting block 124 at its upper end for fixing electronic components.

[0032] The first rotary motor 112 and the second rotary motor 113 drive the ball screw 114 to rotate, causing the fixed seat 115 to move along the ball screw 114. The base plate 121 of the component fixing unit 12 is fixed to the upper surface of the fixed seat 115 by bolts or other means. The clamping cylinder 122 can rotate relative to the base plate 121 by means of a rotating shaft or other means, which facilitates the adjustment of the position of the electronic component. The first limit block 123 and the second limit block 124 are fixed to the upper end of the clamping cylinder 122 by bolts or welding, etc., for clamping the electronic component.

[0033] like Figures 4 to 6 As shown, the bending mechanism 2 includes a first frame 21 and a second frame 22, which are symmetrically arranged on both sides of the cutting mechanism 1. The upper end of the first frame 21 is provided with a hooking unit 23, which includes a first base 231, a first drive motor 232, a first linkage 233, and a picking needle 234. The number of first linkages 233 and picking needles 234 is the same as the number of clamping cylinders 122. The first drive motor 232 and several first linkages 233 are fixedly mounted on the upper surface of the first base 231. The output end of the first drive motor 232 is connected to the input end of several first linkages 233 via a rack and pinion linkage assembly. The fixed end of the picking needle 234 is connected to the output end of the first linkage 233. The picking needle 234 is horizontally positioned, and its rotating end has a forked structure for hooking electronic component leads. The rack and pinion linkage assembly includes a transmission gear 6 and a conveyor belt 7. The transmission gear 6 is connected to the input end of the first linkage 233. The output end of the first transmission motor 232 is connected to several transmission gears 6 through the conveyor belt 7, so that the first transmission motor 232 can drive several input ends of the first linkage 233 to rotate synchronously.

[0034] like Figures 7 to 9 As shown, the upper end of the second frame 22 is provided with a bending unit 24, which includes a second base 241, a second drive motor 242, a second linkage 243, and a wire-pulling rod 244. The number of second linkages 243 and wire-pulling rods 244 is the same as the number of clamping cylinders 122. The second drive motor 242 and several second linkages 243 are sequentially arranged on the upper surface of the second base 241. The output end of the second drive motor 242 is connected to the input end of several second linkages 243 through a rack and pinion linkage assembly. The upper end of the wire-pulling rod 244 is connected to the output end of the second linkage 243 through a connector. The wire-pulling rod 244 is vertically arranged and is a hollow tube with an opening at the lower end for covering the leads of electronic components.

[0035] In addition, lifting motors 3 are provided on the lower surfaces of the first frame 21 and the second frame 22, and first feed motors 4 and second feed motors 5 are connected to the side surfaces of the first frame 21 and the second frame 22, respectively. The lifting motors 3 cooperate with the first feed motors 4 and the second feed motors 5 to realize the movement of the bending unit 24 and the hooking unit 23 in the vertical and horizontal directions along the X and Y axes. The lower opening of the wire-pulling lever 244 is chamfered to prevent the edge of the lower opening of the wire-pulling lever 244 from damaging the leads of electronic components.

[0036] Working principle:

[0037] Feeding: The electronic components are placed on the clamping cylinder 122 of the component fixing unit 12, and the electronic components are fixed by the first limiting block 123 and the second limiting block 124.

[0038] Transfer cutting: The first rotary motor 112 and the second rotary motor 113 are started, driving the ball screw 114 to rotate, causing the fixed seat 115 to move along the ball screw 114, and transporting the electronic components to the bending mechanism 2.

[0039] Hooking line: The first drive motor 232 starts and drives the first linkage 233 to rotate through the rack and pinion linkage assembly, causing the pin 234 to rotate. The forked structure at the rotating end of the pin 234 is used to hook the lead wire of the electronic component.

[0040] Folding: The second drive motor 242 starts, driving the second linkage 243 to rotate via the rack and pinion linkage assembly, causing the wire-pulling rod 244 to descend. The opening at the lower end of the wire-pulling rod 244 covers the lead wire of the electronic component, and the folding operation is performed. During this process, the lifting motor 3, the first feed motor 4, and the second feed motor 5 cooperate to realize the movement of the folding unit 24 and the hooking unit 23 in the vertical and horizontal directions along the X and Y axes, so as to complete the complex folding process.

[0041] Material unloading: After the folding is completed, the first rotating motor 112 and the second rotating motor 113 are started again to move the component fixing unit 12 to the unloading position, remove the folded electronic component, and replace it with an unfolded electronic component, and repeat the above operation.

[0042] Since the component fixing unit 12 can move back and forth between the left and right bending mechanisms, when the left half of the component fixing unit 12 enters the left bending mechanism for bending operation, the operator can remove the bent electronic component from the right half of the component fixing unit 12 and replace it with an unbent electronic component; when the right half of the component fixing unit 12 enters the right bending mechanism for bending operation, the left half can also be loaded and unloaded, realizing the synchronous loading and unloading, which greatly improves the running speed of the machine.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A pre-bending device for electronic component leads, characterized in that: The device includes a cutting mechanism, which comprises a transmission unit and a component fixing unit. The component fixing unit is disposed on the upper surface of the transmission unit. The cutting mechanism is symmetrically provided with bending mechanisms at both ends. The bending mechanism includes a first frame and a second frame. The first frame and the second frame are symmetrically disposed on both sides of the cutting mechanism. The upper end of the first frame is provided with a hooking unit, and the upper end of the second frame is provided with a bending unit.

2. The electronic component lead pre-bending device according to claim 1, characterized in that: The transmission unit includes a base, a first rotating motor, a second rotating motor, a ball screw, and a fixed seat. The first rotating motor and the second rotating motor are symmetrically arranged at both ends of the base. The two ends of the ball screw are respectively connected to the output ends of the first rotating motor and the second rotating motor. Through holes are opened on both sides of the fixed seat, through which the ball screw passes. The fixed seat can reciprocate along the ball screw. A component fixing unit is fixedly provided on the upper surface of the fixed seat.

3. The electronic component lead pre-bending device according to claim 2, characterized in that: The component fixing unit includes a base plate, the lower surface of which is fixedly connected to the upper surface of the fixing seat. The upper surface of the base plate is provided with a plurality of clamping cylinders, which rotate relative to the base plate. The upper end of the clamping cylinder is symmetrically provided with a first limiting block and a second limiting block, which are used to fix the electronic component.

4. The electronic component lead pre-bending device according to claim 3, characterized in that: The hooking unit includes a first base, a first drive motor, a first linkage, and a hook. The number of the first linkage and the hook is the same as the number of the clamping cylinders. The first drive motor and several first linkages are fixedly mounted on the upper surface of the first base. The output end of the first drive motor is connected to the input ends of several first linkages through a rack and pinion linkage assembly. The fixed end of the hook is connected to the output end of the first linkage. The hook is arranged horizontally, and the rotating end of the hook has a forked structure for hooking electronic component leads.

5. The electronic component lead pre-bending device according to claim 4, characterized in that: The zigzag unit includes a second base, a second drive motor, a second linkage, and a wire-pulling rod. The number of the second linkage and the wire-pulling rod is the same as the number of the clamping cylinders. The second drive motor and several second linkages are sequentially arranged on the upper surface of the second base. The output end of the second drive motor is connected to the input end of several second linkages through a rack and pinion linkage assembly. The upper end of the wire-pulling rod is connected to the output end of the second linkage through a connector. The wire-pulling rod is vertically arranged and is a hollow tube with an opening at the lower end for covering the leads of electronic components.

6. The electronic component lead pre-bending device according to claim 5, characterized in that: The lower surfaces of the first frame and the second frame are each equipped with a lifting motor. The lifting motor is used for the vertical displacement of the hook line unit and the folded line unit. The side surfaces of the first frame and the second frame are each connected to a first feed motor and a second feed motor, which are used for the horizontal movement of the hook line unit and the folded line unit.

7. The electronic component lead pre-bending device according to claim 6, characterized in that: The lower opening of the dial lever is chamfered to prevent the edge of the lower opening of the dial lever from damaging the leads of electronic components.

Images