Straightening and cutting shaping device and method suitable for semi-automatic / automatic pin shaping machine

Abstract

The invention discloses a straightening and cutting shaping device and method suitable for a semi-automatic / automatic pin shaping machine. The device comprises a bottom plate driven by a first single-piston-rod air cylinder, and a straightening module and a cutting module are integrated on the bottom plate. The straightening module comprises a movable plate driven by a double-piston-rod air cylinder and a plurality of pairs of straightening mechanical fingers which are in linkage with the movable plate through a first connecting rod mechanism and are arranged in a staggered mode, and the straightening module is used for clamping the pins in the two vertical directions. The cutting module comprises a cutting tool driven by a second single-piston-rod air cylinder through a second connecting rod mechanism. The method comprises the following steps: positioning a component; the double-piston-rod air cylinder is driven to enable the movable plate and the mechanical fingers to be closed to clamp the pins; a single-piston-rod air cylinder I is driven to drive a bottom plate to reciprocate to finish straightening; a single-piston-rod air cylinder I is driven to move the bottom plate to a cutting position; the second single-piston-rod air cylinder is driven to close the cutting tool to complete cutting. The straightening and cutting functions are integrated, straightening and positioning are carried out by sharing one drive, the structure is remarkably simplified, and the cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of electronic component manufacturing technology, and specifically to a shaping device and method for straightening and trimming the pins of electronic components. Background Technology

[0002] In the electronics manufacturing industry, through-hole components such as integrated circuits, resistors, and capacitors need to have their leads straightened, trimmed to a specified length before being soldered onto printed circuit boards. This process is called lead shaping. Traditional manual shaping methods are inefficient, inconsistent, and prone to damaging components. Therefore, semi-automatic or fully automatic lead shaping machines are widely used.

[0003] In existing pin shaping equipment, the straightening and cutting functions are typically performed sequentially at two separate stations, with the straightening module and the cutting module driven by different cylinders. While this approach can accomplish the functions, it requires more mechanical stations and independent drive and control systems, resulting in complex equipment structure, large footprint, and significantly increased manufacturing costs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the problem of high equipment cost and complex structure caused by the separation of straightening and cutting processes in the prior art, and to provide a pin shaping device and method that is compact, low cost and integrates straightening and cutting functions.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A straightening and trimming device suitable for semi-automatic / automatic pin shaping machines, comprising: Single piston rod cylinder one; The base plate is installed at the output end of the single piston rod cylinder and is driven by the single piston rod cylinder to perform reciprocating linear motion within its piston rod stroke. A pair of movable plates are slidably mounted on the base plate via guide rails formed on the surface of the base plate; A double piston rod cylinder is installed at one end of the base plate, and its output end is connected to the pair of movable plates, which is used to drive the pair of movable plates to perform opening and closing translational motion along the guide rail. Multiple pairs of straightening and shaping mechanical fingers are pivotally mounted on the base plate via a linkage mechanism. The linkage mechanism connects the movable plate and the straightening and shaping mechanical fingers, and is used to convert the translational motion of the movable plate into the rotational opening and closing motion of the straightening and shaping mechanical fingers. A cutting and shaping tool, comprising a pair of blades that can open and close relative to each other; Single piston rod cylinder two is installed at the other end of the base plate; Linkage mechanism two connects the output end of single piston rod cylinder two to the blade of the cutting and shaping tool, and is used to convert the linear motion of single piston rod cylinder two into the rotational opening and closing motion of the cutting and shaping tool; A mold is used to place and position electronic components to be shaped, such that the component pins are positioned between a pair of straightening and shaping mechanical fingers and correspond to the cutting edge of the cutting and shaping tool.

[0006] Preferably, the multiple pairs of straightening and shaping mechanical fingers are arranged in a bidirectional staggered manner relative to the pins to avoid positional interference between adjacent mechanical fingers during opening and closing.

[0007] Preferably, the linkage mechanism includes multiple linkage units, each linkage unit corresponds to a pair of straightening and shaping mechanical fingers, and the root of each linkage unit is connected to a bracket fixed on the base plate via a hinge shaft.

[0008] Preferably, the root of the cutting and shaping tool is connected to a bracket fixed on the base plate via a hinge shaft two.

[0009] Preferably, the dual piston rod cylinder is mounted to the base plate via a bracket.

[0010] The present invention also provides a method for pin shaping using the above-described straightening and trimming device, comprising the following steps: S1: Position the electronic component to be shaped on the mold, so that its pins are located between the straightening and shaping mechanical fingers and on the cutting edge movement path of the cutting and shaping tool; S2: Drives a double piston rod cylinder to make a pair of movable plates close in opposite directions. Through a linkage mechanism, it drives multiple pairs of straightening and shaping mechanical fingers to close synchronously, clamping the pin from two mutually perpendicular directions. S3: Drive the single piston rod cylinder one, which drives the base plate and all the components mounted on it to reciprocate linearly along the pin length direction to complete the straightening and shaping of the pin; S4: After straightening and shaping, drive the single piston rod cylinder to move the base plate and the components mounted on it to the preset cutting position; S5: Drives the single piston rod cylinder two, which in turn drives the cutting and shaping cutter to close through the linkage mechanism two, thus completing the cutting of the pin.

[0011] The beneficial effects of this invention are as follows: 1. High integration, reduced costs: By integrating the straightening clamping mechanism, straightening drive mechanism, and cutting mechanism onto the same base plate, and driving the straightening motion and positioning with a single single-piston rod cylinder, a high degree of integration of straightening and cutting functions is achieved. This significantly reduces the number of independent workstations, drive sources, and control units, thereby greatly reducing the manufacturing cost and complexity of the equipment.

[0012] 2. Optimized process for improved efficiency: Once the components are positioned on the mold, they can be straightened and cut sequentially without needing to be transferred between multiple workstations, thus shortening the cycle time and improving shaping efficiency.

[0013] 3. Compact structure and space saving: The integrated design makes the entire device very compact, which is conducive to layout on automated production lines or workbenches and saves valuable production space.

[0014] 4. Reliable operation and consistent precision: The linkage mechanism enables the synchronous opening and closing of multiple pairs of straightening mechanical fingers, ensuring uniform force on all pins and excellent straightening effect. Straightening and cutting share the same base plate motion reference, guaranteeing consistent cutting length. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the straightening, cutting, and shaping device (the cutting and shaping blades in the diagram are in the open state). Figure 2 This is a schematic diagram showing the open state of the movable plate and the straightening and shaping mechanical fingers; Figure 3 This is a schematic diagram showing the closed state of the movable plate and the straightening and shaping mechanical fingers; Figure 4 This is a schematic diagram of the closed state of the cutting and shaping tool.

[0016] In the diagram: 1. Single piston rod cylinder one; 2. Base plate; 21. Guide rail section; 3. Double piston rod cylinder; 31. Bracket one; 4. Movable plate; 5. Straightening and shaping mechanical finger; 6. Linkage mechanism one; 61. Bracket two; 7. Cutting and shaping tool; 71. Bracket three; 8. Single piston rod cylinder two; 9. Linkage mechanism two; 10. Mold; 100. Electronic components; 101. Pin. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0018] like Figures 1 to 4 As shown, this embodiment of the invention provides a straightening and trimming device suitable for semi-automatic / automatic pin shaping machines. The core design concept of this device is to integrate the straightening and trimming functional modules into the same motion unit.

[0019] The device mainly includes a single-piston rod cylinder 1, a base plate 2, a double-piston rod cylinder 3, a pair of movable plates 4, multiple pairs of straightening and shaping mechanical fingers 5, a cutting and shaping cutter 7, a single-piston rod cylinder 2 8, a mold 10, and corresponding linkage mechanisms (6, 9) and mounting brackets (31, 61, 71). The mold 10 for placing parts can be quickly changed according to the different parts being processed.

[0020] The base plate 2 is fixedly mounted on the output end (piston rod) of the single-piston rod cylinder 1. The single-piston rod cylinder 1 serves as the main drive source, responsible for driving the entire base plate 2 and all components it supports to perform precise reciprocating linear motion in the Z-axis direction (i.e., the length direction of pin 101). The reciprocating motion is used to straighten the material, while moving to a specific position is used to locate the cutting point.

[0021] On the upper surface of the base plate 2, there is a pair of guide rails 21. A pair of movable plates 4 are slidably mounted on the guide rails 21. A double piston rod cylinder 3 is fixed to one end of the base plate 2 by a bracket 31, and its two output piston rods are respectively connected to the two movable plates 4. When the double piston rod cylinder 3 is activated, it can precisely drive the two movable plates 4 to perform translational movements in opposite directions (closing) or opposite directions (opening) along the guide rails 21.

[0022] Multiple pairs of straightening and shaping mechanical fingers 5 for holding pins 101 are mounted on the base plate 2 via a linkage mechanism 6. The root of the linkage mechanism 6 is connected to a bracket 61 fixed to the base plate 2 via a hinge shaft (not shown), allowing the linkage mechanism 6 and the mechanical fingers 5 fixed thereto to rotate around the hinge shaft. The other end of the linkage mechanism 6 is connected to a movable plate 4. Figure 2 and Figure 3 As shown, in order to avoid interference between mechanical fingers 5 due to excessively small spacing between adjacent pins 101, multiple pairs of straightening and shaping mechanical fingers 5 are arranged in a bidirectional staggered manner.

[0023] When the dual-piston cylinder 3 drives the movable plate 4 to close, the translational motion of the movable plate 4 is converted into the synchronous inward rotation and closing action of multiple pairs of straightening and shaping mechanical fingers 5 through the linkage mechanism 6, thereby clamping and constraining the pin from the X and Y axis directions (perpendicular to the movement direction of the base plate). At this point, the pin is completely constrained in the XY plane.

[0024] The cutting and shaping blade 7 is located at the other end of the device and includes a pair of blades that can rotate about a second hinge axis (not shown in the figure). The second hinge axis is mounted on a third bracket 71, which is fixed to the base plate 2. A second single-piston cylinder 8 is also fixed to the base plate 2, and its output end is connected to the blades of the cutting and shaping blade 7 via a second linkage mechanism 9. When the second single-piston cylinder 8 is activated, it drives the cutting and shaping blade 7 to complete the opening or closing shearing action through the second linkage mechanism 9. During the straightening process, the cutting and shaping blade 7 always remains in the open state to avoid interference.

[0025] The mold 10 is independently mounted on the mold mounting base and is used to support and position the electronic components 100 to be shaped. Its mounting position is precisely adjusted to ensure that when the component is placed, each of its pins 101 is exactly between the corresponding pair of straightening and shaping mechanical fingers 5, and the end of the pin 101 is on the cutting edge movement trajectory of the cutting and shaping tool 7.

[0026] The device operates as follows: First, the operator or automatic feeding mechanism places the electronic component 100 to be shaped onto the mold 10 and positions it, such as... Figure 1 and Figure 2 As shown.

[0027] When the device is started, the double-piston cylinder 3 actuates, driving a pair of movable plates 4 to move towards each other until they close. During this process, the movable plates 4, through the linkage mechanism 6, drive all the straightening and shaping mechanical fingers 5 to rotate and close synchronously, clamping the pin 101 from the X and Y axes. The pin 101 is thus fully clamped and constrained, as... Figure 3 As shown.

[0028] Next, the single-piston cylinder 1 actuates, driving the base plate 2 and all its components (including the mechanical finger 5 that has clamped the pin 101) to perform several reciprocating linear movements along the Z-axis (pin length direction). By utilizing the relative movement between the pin 101 and the straightening mechanical finger 5, the bent pin 101 is straightened.

[0029] After straightening, the single-piston cylinder 1 drives the base plate 2 to move to the preset cutting position. This position is controlled by the stroke of the single-piston cylinder 1, which determines the length of the pin after cutting.

[0030] Finally, the single-piston rod cylinder 8 actuates, driving the cutting and shaping blade 7 to close rapidly via the linkage mechanism 9, cutting off the excess lead portion extending beyond the blade edge. Figure 4 As shown.

[0031] After cutting, single-piston rod cylinder 28 resets, causing the cutter 7 to open; double-piston rod cylinder 3 resets, causing the movable plate 4 and mechanical fingers 5 to open; and single-piston rod cylinder 1 drives the base plate 2 back to its initial position. The shaped component 100 is then removed, and the device is ready for the next work cycle.

[0032] This invention is not limited to the preferred embodiments described above. Anyone can derive other products in various forms under the guidance of this invention. However, regardless of any changes in shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this invention.

Claims

1. A straightening and cutting shaping device suitable for use in a semi-automatic / automatic pin shaper, characterized in that, The utility model relates to a kind of electronic component straightening and shaping device, comprising: Single piston rod cylinder one (1); Bottom plate (2), it is installed to the output end of single piston rod cylinder one (1), and it is driven in its piston rod stroke reciprocating linear motion by single piston rod cylinder one (1); A pair of movable plate (4), it is slidably installed on bottom plate (2) by guide rail part (21) formed on the surface of bottom plate (2); Double piston rod cylinder (3), it is installed to one end of bottom plate (2), and its output end is connected the pair of movable plate (4), for driving the pair of movable plate (4) along guide rail part (21) and carry out opening and closing translation movement; Multiple pairs of straightening and shaping mechanical fingers (5), it is pivotably installed on bottom plate (2) by connecting rod mechanism one (6), and the connecting rod mechanism one (6) is connected movable plate (4) with straightening and shaping mechanical finger (5), for the translation movement of movable plate (4) is converted into the rotating opening and closing movement of straightening and shaping mechanical finger (5); Trimming and shaping cutter (7), including a pair of relatively openable and closable blade body; Single piston rod cylinder two (8), it is installed to the other end of bottom plate (2); Connecting rod mechanism two (9), it is connected the output end of single piston rod cylinder two (8) with the blade body of trimming and shaping cutter (7), for the linear motion of single piston rod cylinder two (8) is converted into the rotating opening and closing movement of trimming and shaping cutter (7); Mold (10), for placing and positioning electronic component to be shaped (100), its position makes that component pin (101) is located between corresponding pair of straightening and shaping mechanical finger (5), and with the cutting edge of trimming and shaping cutter (7) corresponding.

2. The straightening, tailoring apparatus of claim 1, wherein, The arrangement direction of the multiple pairs of straightening and shaping mechanical fingers (5) relative to pin (101) is bidirectional staggered arrangement.

3. Straightening, cutting and shaping device according to claim 1 or 2, characterized in that The connecting rod mechanism one (6) includes multiple connecting rod units, each connecting rod unit corresponds a pair of straightening and shaping mechanical finger (5), and the root of each connecting rod unit is connected with support two (61) fixed on bottom plate (2) by hinged shaft one.

4. The straightening, tailoring apparatus of claim 1, wherein, The root of the blade body of the trimming and shaping cutter (7) is connected with support three (71) fixed on bottom plate (2) by hinged shaft two.

5. The straightening, tailoring apparatus of claim 1, wherein, The double piston rod cylinder (3) is installed on bottom plate (2) by support one (31).

6. A method of performing lead shaping using the straightening, trimming and shaping device according to any one of claims 1-5, characterized in that, Including the following steps: S1: positioning electronic component to be shaped (100) on mold (10), so that its pin (101) is located between straightening and shaping mechanical finger (5) and the cutting edge movement path of trimming and shaping cutter (7); S2: drive double piston rod cylinder (3), so that a pair of movable plate (4) closes to each other, drive multiple pairs of straightening and shaping mechanical finger (5) to close synchronously through connecting rod mechanism one (6), and pin (101) is clamped from two mutually perpendicular directions; S3: drive single piston rod cylinder one (1), drive bottom plate (2) and all components installed thereon reciprocating linear motion along the length direction of pin (101), complete straightening and shaping of pin (101); S4: after straightening and shaping, drive single piston rod cylinder one (1), move bottom plate (2) and components installed thereon to preset trimming position; S5: drive single piston rod cylinder two (8), through connecting rod mechanism two (9) drive cutting and shaping cutter (7) to close, complete the cutting of the pin (101).

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