Pin synchronous shearing and expanding device

Abstract

The utility model discloses a kind of pin synchronous shearing and spacing device, including first clamp block and second clamp block, the first clamp block and second clamp block are respectively installed on the transmission member of mutual linkage;The transmission member is configured to be driven under external force, drive the first clamp block and second clamp block move towards each other, to execute the shearing and press-clamping action of pin;The first clamp block and second clamp block are in clamping state, the cooperation profile of two mutually adheres in middle region;In the end close to pin insertion direction, the shaping cavity for clamping the remaining pin part of pin is formed between the cooperation profile;In the end away from pin insertion direction, the waste-removal cavity for accommodating the sheared pin end is formed between the cooperation profile.The utility model can complete pin shearing, shaping and spacing adjustment synchronously by one clamp block closing action, to efficiently and accurately realize pin spacing.

Description

Technical Field

[0001] This utility model relates to the technical field of pin cutting and shaping equipment, and in particular to a pin synchronous cutting and spacing extension device. Background Technology

[0002] In the field of electronic manufacturing and packaging, many electronic components (such as integrated circuits, connectors, etc.) have multiple parallel pins for insertion into corresponding holes on printed circuit boards for soldering.

[0003] Currently, pin processing typically involves two main steps: cutting and shaping. Cutting is used to trim the pins from their original length to a standard length; while shaping is used to correct any bending that occurred during transport or previous processes, or to adjust the pins to the appropriate orientation according to the spacing of the target socket. Especially when components need to be adapted to sockets with different pin spacings than their original pin spacing, it is often necessary to perform reverse, equidistant spacing extension operations on adjacent pins.

[0004] Existing processing methods often employ a step-by-step approach: first cutting, then shaping. This involves cutting the pins at one station using a simple shearing die, then transferring them to another station where a dedicated shaping die straightens or extends the pin's distance. This method is not only inefficient, but also prone to problems such as poor shaping accuracy and pin surface damage due to misalignment between the pin and the die during secondary positioning and clamping. Furthermore, it makes it difficult to guarantee the consistency of length and angle between adjacent pins after extension.

[0005] Therefore, the industry urgently needs a solution that integrates shearing and precision shaping functions, and can simultaneously complete pin length shearing and precise spacing expansion in one action, in order to improve production efficiency and processing quality. Summary of the Invention

[0006] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a pin synchronous cutting and spacing expansion device, which can simultaneously complete pin cutting, shaping and spacing adjustment through the closing action of a clamping block, so as to achieve pin spacing expansion efficiently and accurately.

[0007] Technical Solution: To achieve the above objectives, this utility model provides a pin synchronous shearing and spacing extension device, comprising a first clamping block and a second clamping block, which are respectively mounted on a mutually linked transmission component. The transmission component is configured to drive the first clamping block and the second clamping block to move towards each other under the influence of an external force, so as to perform pin shearing and clamping actions. In the clamped state, the mating surfaces of the first clamping block and the second clamping block are in close contact with each other in the middle region. At the end near the pin insertion direction, the mating surfaces form a shaping cavity for clamping the remaining pin portion. At the end away from the pin insertion direction, the mating surfaces form a waste discharge cavity for accommodating the end of the sheared pin.

[0008] Furthermore, the shaping cavity is a polygonal cavity with a width adapted to the diameter of the pin.

[0009] Furthermore, the shaping cavity includes a first cavity, a transition cavity, and a second cavity arranged sequentially along the pin insertion direction, wherein the transition cavity is connected between the first cavity and the second cavity; the first cavity and the second cavity are parallel to each other, and the first cavity is used to keep the pin portion contained therein straight with the root of the pin.

[0010] Furthermore, the transition cavity transitions at right angles to the first cavity and the second cavity, respectively.

[0011] Furthermore, one of the first clamping block and the second clamping block is configured as a punch structure and the other is configured as a die structure; the protruding end face of the punch structure away from the pin insertion direction is in contact with the groove surface on the same side of the groove on the die structure to form a shearing interface for shearing the pin end.

[0012] Furthermore, the shearing interface is the starting boundary of the shaping cavity.

[0013] Furthermore, a positioning plate is provided on the side of the die structure near the pin insertion direction, and a positioning hole is provided on the positioning plate for the pin to pass through.

[0014] Furthermore, the positioning plate is movably mounted and can slide along the pin insertion direction to approach or move away from the die structure.

[0015] Beneficial Effects: This utility model discloses a pin synchronous shearing and expansion device. Through the mechanical movement of a pair of specially shaped clamps, it synchronously completes shearing and expansion shaping, improving the efficiency of pin shearing and expansion shaping. By changing clamps with different profiles, different expansion angles and pin shapes can be easily achieved to meet diverse product requirements. The forming of all pins is ensured by a precision shaping cavity, eliminating errors caused by human intervention and ensuring that all pins have consistent length and expansion distance after expansion, exhibiting extremely high repeatability and product consistency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of one embodiment of the present invention with a positioning plate;

[0018] Figure 3 This is a schematic diagram illustrating the shearing and spacing effect of a pin spacing extension embodiment. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] As attached Figure 1-3 The aforementioned pin synchronous shearing and spacing-expanding device includes a first clamping block 1 and a second clamping block 2, which are respectively mounted on a mutually linked transmission component 3. The transmission component 3 is configured to drive the first clamping block 1 and the second clamping block 2 to move towards each other under the action of an external force, thereby performing the shearing and clamping actions of the pin 4. Shearing and spacing-expanding are completed synchronously through a single clamping block closing action, greatly shortening the processing time and making it particularly suitable for automated production.

[0021] When the first clamping block 1 and the second clamping block 2 are in the clamped state, their mating surfaces fit together in the central region. At the end near the pin insertion direction, the mating surfaces form a shaping cavity 5 for clamping the remaining pin portion 42 of the pin 4. At the end away from the pin insertion direction, the mating surfaces form a waste discharge cavity 6 for accommodating the cut pin end 41. The core function of this solution is achieved through the mechanical movement of a pair of specially shaped clamping blocks, eliminating the need for complex sensors or independent drive systems to control the expansion distance. It features a compact structure, reliable operation, low failure rate, and correspondingly reduced maintenance costs. By replacing clamping blocks with different profiles, the shape and angle of the shaping cavity can be changed, easily achieving different expansion angles and pin configurations to adapt to diverse product requirements.

[0022] The shaping cavity 5 is a polygonal cavity with a width adapted to the diameter of the pin 4. The shaping cavity 5 includes a first cavity 51, a transition cavity 53, and a second cavity 52 arranged sequentially along the pin insertion direction, with the transition cavity 53 connecting the first cavity 51 and the second cavity 52. ​​The first cavity 51 and the second cavity 52 are parallel to each other, and the first cavity 51 is used to keep the accommodated pin portion parallel to the root of the pin 4, as shown in the positional relationship of the two remaining pin portions 42 in the figure. Based on the parallel relationship of the initial pins of the component, the end section of the bent and shaped remaining pin portion 42 can be kept parallel to the root of the initial pin.

[0023] As attached Figure 3 As shown, the distance between two adjacent pins on a through-hole component needs to be extended to meet the installation requirements of a certain socket spacing. The shearing and extending device in this embodiment cuts and bends the two pins respectively, with the bending directions of the two pins being opposite. This ensures the consistency of the outward extension of the two pins and ensures that the two pins remain parallel to each other after the extension, achieving precise control over the same outward extension distance of the two pins. This ensures that the pins are subjected to symmetrical force when inserted into the circuit board, avoiding socket damage or poor soldering due to excessive stress on one side.

[0024] The transition cavity 53 transitions at right angles to the first cavity 51 and the second cavity 52, respectively. This facilitates stable contact between the components and the circuit board during insertion after the pin spacing is increased. Furthermore, the cavities are rounded at the bending transition points to avoid scratches and damage to the pin surfaces.

[0025] One of the first clamping block 1 and the second clamping block 2 is configured as a punch structure, and the other as a die structure. The protruding end face of the punch structure away from the pin insertion direction and the groove surface on the same side of the groove on the die structure are fitted together to form a shearing interface 7 for shearing the pin end. The shearing interface 7 is the starting boundary of the shaping cavity 5. That is, the protruding part of the punch structure and the grooved part of the die structure are fitted together at the shearing interface 7; the protruding part of the punch structure and the grooved part of the die structure together form the shaping cavity 5 in the section between the shearing interface 7 and the pin insertion end. While the punch structure and the die structure are closing to shear, the shaping cavity they form has already preset a new posture and position with a specific outward expansion angle for the remaining pin portion. The pin is not clamped and shaped again after shearing, but at the moment the shearing action occurs, its remaining pin portion is already introduced and constrained in the shaping cavity, realizing a highly efficient synchronous process of "shaping in place as soon as shearing is completed".

[0026] Furthermore, since the molding of all pins is guaranteed by precision punches and concave cavities (shaping cavities), errors caused by human intervention are eliminated, ensuring that all pins have the same length and the same outward expansion distance after expansion, resulting in extremely high repeatability and product consistency.

[0027] A positioning plate 8 is provided on the side of the die structure near the pin insertion direction. The positioning plate 8 has a positioning hole 81 for the pin 4 to pass through. The positioning plate 8 is movably mounted and can slide along the pin insertion direction to move closer to or further away from the die structure. This movable design of the positioning plate 8 provides novel adaptability. When the initial straight pin 4 is inserted between the two clamping blocks, as shown in the attached... Figure 2As shown, the pin is first passed through the positioning hole, and the component is then placed against the positioning plate. By adjusting the distance between the positioning plate and the die, the length of the pin extending into the groove can be controlled, thereby indirectly controlling the effective length of the pin after cutting and the starting point of the outward expansion. This allows the same device to handle initial pins of different specifications to adapt to different target socket spacings.

[0028] The above are merely preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A pin synchronous shearing and spacing extension device, characterized in that: It includes a first clamping block (1) and a second clamping block (2), which are respectively mounted on a transmission component (3) that is linked to each other; the transmission component (3) is configured to drive the first clamping block (1) and the second clamping block (2) to move towards each other under the drive of an external force, so as to perform the shearing and clamping action of the pin (4); When the first clamping block (1) and the second clamping block (2) are in the clamping state, their mating surfaces are in contact with each other in the middle region; at the end near the pin insertion direction, the mating surfaces form a shaping cavity (5) for clamping the remaining pin portion (42) of the pin (4); at the end away from the pin insertion direction, the mating surfaces form a waste discharge cavity (6) for accommodating the cut pin end (41).

2. The pin synchronous shearing and spacing extension device according to claim 1, characterized in that: The shaping cavity (5) is a polygonal cavity whose width is adapted to the diameter of the pin (4).

3. The pin synchronous shearing and spacing extension device according to claim 2, characterized in that: The shaping cavity (5) includes a first cavity (51), a transition cavity (53) and a second cavity (52) arranged sequentially along the pin insertion direction, wherein the transition cavity (53) is connected between the first cavity (51) and the second cavity (52); The first cavity (51) is parallel to the second cavity (52), and the first cavity (51) is used to keep the contained pin portion flush with the root of the pin (4).

4. The pin synchronous shearing and spacing extension device according to claim 3, characterized in that: The transition cavity (53) transitions at right angles to the first cavity (51) and the second cavity (52), respectively.

5. The pin synchronous shearing and spacing extension device according to claim 1, characterized in that: One of the first clamping block (1) and the second clamping block (2) is configured as a punch structure and the other is configured as a die structure; the protruding end face of the punch structure away from the pin insertion direction and the groove surface on the same side of the groove on the die structure are in contact with each other to form a shearing interface (7) for shearing the pin end.

6. The pin synchronous shearing and spacing extension device according to claim 5, characterized in that: The shearing interface (7) is the starting boundary of the shaping cavity (5).

7. A pin synchronous shearing and spacing extension device according to claim 6, characterized in that: The die structure is provided with a positioning plate (8) on the side near the pin insertion direction, and the positioning plate (8) is provided with a positioning hole (81) for the pin (4) to pass through.

8. The pin synchronous shearing and spacing extension device according to claim 7, characterized in that: The positioning plate (8) is movably mounted and can slide along the pin insertion direction to approach or move away from the die structure.

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