KR101042816B1

KR101042816B1 - Movable type bending mold for connector pin's bending

Info

Publication number: KR101042816B1
Application number: KR1020100007351A
Authority: KR
Inventors: 이성문
Original assignee: 주식회사 성평
Priority date: 2010-01-27
Filing date: 2010-01-27
Publication date: 2011-06-20

Abstract

The present invention relates to a mold structure that can ensure the accuracy and precision of the shape when bending the pin forming the contact structure of the plug and receptacle of the micro connector to facilitate the electrical connection and disconnection of electronic products, the bending of the pin The punch is in contact with the upper surface of the reference block to form a bottom dead center, the upper part of the punch has a built-in cushion device to absorb the impact caused by the contact of the punch and the reference block, the lower tapered slider is inserted below the reference block The slider is moved by the adjusting bolt, so that the reference block can be adjusted in the up and down direction.

Description

Movable type bending mold for connector pin's bending

The present invention relates to a mold structure that can ensure the accuracy and precision of the shape when bending the pin forming the contact structure of the plug and receptacle of the micro-connector to facilitate the electrical connection and disconnection of electronic products.

Connector pins serve as electrical connections as components of connectors that facilitate the electrical connection and disconnection of electrical and electronic products.

These connector pins have a thin and long shape due to the characteristics of the product, and as the integration of the connector pins increases, the ratio of the width to the size and thickness of the connector pin cross-section gradually decreases.

The connector consists of a plug and a receptacle, and a plug is inserted into the receptacle, so that a single contact method in which only one side of the plug pin contacts the pin of the receptacle and both sides of the plug are receptacle There is a dual contact method that contacts both side pins of the connector, and the pin of the connector prevents deformation during extraction for insertion and separation for coupling, and realizes a strong click by using the step between the insertion and coupling parts. It is bent in a complex form to make it visible.

The connector pins should be bent so that the height, length, and width of the pins are in the form of microns in order to ensure contact between the very small plug and the receptacle.

The mold structure for bending the conventional connector pin is fixed and repeatedly operated at a high speed to form a constant gap 4 between the bottom dead center 2 and the lower mold 3 of the punch 1 as shown in FIG. Although the punch 1 is not exposed to the direct impact of contact with the lower mold 3, the punch bending pin 5 maintains the bottom dead center position even under no load, but the punch speed, Due to the temperature of the equipment and the bending of the mold, the position of the bottom dead center occurred, which delayed the work and accumulated maintenance time for correction, which caused stable quality and disrupted production.

According to the present invention, by changing the structure of the mold for bending the connector pin, it is possible to maintain a constant bottom dead center regardless of the change in the temperature of the press and RAM, and to easily correct the position of the bottom dead center to stabilize the quality. It aims to improve productivity by eliminating work delay factors for calibration.

The present invention is configured to allow the punch to descend to maintain the position of the bottom dead center regardless of the change of the ram by the contact with the reference block, and to prevent the punch in contact with the reference block from being damaged by the impact. In order to insert a cushioning device consisting of a spring and an air piston that can absorb shocks in the upper part of the punch, and to adjust the dimensional change caused by the spring back of the bent pin, etc. Insert a tapered slider in the to provide a configuration that makes it easy to adjust the position of the bottom dead center of the reference block by adjusting the screw.

The present invention can maintain the bottom dead center position of the punch at the time of pin bending of the micro-connector to maintain a uniform quality regardless of the temperature or ram change of the equipment, correction of the bottom dead center for dimensional changes such as spring back It can be easily adjusted to shorten the time required for the correction work due to the dimensional change during bending has the effect of improving the productivity with the stabilization of quality.

1 is a partial cross-sectional view of the main portion of the fixed bending mold for bending the conventional connector pins
Figure 2 is a perspective view of the plug and receptacle of the connector to which the present invention is applied
3 is a cross-sectional view in which the plug and receptacle of FIG. 2 is coupled, a) is a single contact method, and b) is a dual contact method.
Figure 4 is an illustration of the change in pin shape according to the position change of the bottom dead center of the mold to which the present invention is applied
Figure 5 is a side cross-sectional view of the present invention movable bending mold
Figure 6 is a detailed view of the main bending portion of the receptacle to which the present invention is applied

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a partial cross-sectional view of the main portion of the fixed bending mold for bending the conventional connector pin, Figure 2 is a perspective view of the plug and receptacle of the connector to which the present invention is applied, Figure 3 is a plug and receptacle of Figure 2 As a cross-sectional view is combined a) is a single contact method, b) is a dual contact method, Figure 4 is an illustration of the change in the pin shape according to the position of the bottom dead center of the mold to which the present invention is applied, Figure 5 is the present invention 6 is a side cross-sectional view of the movable bending die, and FIG. 6 is a detailed view of the main bending portion of the receptacle to which the present invention is applied.

Prior to the detailed description of the present invention, a known configuration within the scope of not obscuring the gist of the present invention will be omitted or simplified to make the characteristic configuration of the present invention more clear.

The bending mold to which the present invention is applied is mounted to a press for processing a small workpiece at high speed, and the press usually has a working speed of 200 to 1000 times per minute, and the punch operation distance is about 1.0 mm.

In the case of the 40-pin connector shown in Figure 2 is small in size 10.5, width 3.9, height 1.0, the connector pin 10 shown in Figure 3 in order to prevent contact deformation when the connector 11 is coupled or extracted It is bent into a complex shape and embedded in a case 12 for preventing deformation and for insulation.

The bent connector pin 10 shown in FIG. 6 has a dimension tolerance of 0.90 ± 0.015 in the A part, 1.50 ± 0.02 in the B part, 0.05 ± 0.02 in the C part, and 0.7 ± 0.02 in the D part.

The pin 10 shown in FIG. 5 affects the dimensional tolerance by affecting the angle of the bent pin 10 when the position of the bottom dead center 14 of the punch 13 to be bent upwards or downwards slightly than the reference plane. Since the movable distance of the punch 13 may also be caused by deformation such as temperature, ram speed, and bending of the mold, in the present invention, the movable distance of the punch 13 may be defined by a reference block (located at the bottom dead center 14). It is configured to be kept constant by 15).

Since the punch 13 repeatedly contacting the reference block 15 at a high speed may be easily damaged by a contact impact, the upper portion of the punch 13 is provided with a cushion device 16 capable of absorbing the impact.

The cushion device 16 is configured such that the coil spring 17 or the air piston 18 is configured in such a manner that the cushion device is incorporated to absorb the shock applied to the punch 13.

Even when the bottom dead center of the punch 13 is fixed by the reference block 15, the bending angle of the pin 10 may be changed by a phenomenon such as a spring back, and the value of the spring back may also be changed by the punching speed. .

Therefore, in the present invention, the position of the reference block 15 for fixing the bottom dead center 14 is configured to be adjusted in the up and down directions so that the change in the bending angle can be easily corrected.

To adjust the position of the bottom dead center 14 of the reference block 15 upward or downward, insert the slider 20 with the tapered portion 19 at the bottom of the reference block 15 and adjust the slider 20 with the adjustment bolt ( By using the screw of 21), the position of the bottom dead center 14 is adjusted upward or downward by the taper 19.

Therefore, even if the wear of the punch 13 and the change in the bending angle due to the spring back of the pin 10 occur, the position of the bottom dead center 14 of the punch 13 can be easily and quickly corrected, so that the work for the correction This can prevent the delay of time.

In the above, the present invention has been described for applying the bending of the connector pin, but this is only one example, and the technical idea of the present invention is applicable to the bending work of other workpieces. It will be obvious to those who have.

The present invention can be utilized for precise bending work of the workpiece, such as bending of the connector pin.

10.Pin 11.Connector
12. Case 13. Punch
14. Bottom dead center 15. Reference block
16. Cushion device 17. Coil spring
18.Apistone 19.Tapered
20. Slider 21. Adjusting bolt

Claims

In the bending mold for bending the pins of the plug and the receptacle constituting the connector,
An end portion of the punch 13 for bending the pin 10 forms a bottom dead center 14 in contact with the reference block 15, and the pin 10 is formed by a protrusion projecting on the upper side of the bottom dead center of the punch 13. ) And a cushioning device 16 is provided on the upper part of the punch 13 to absorb the impact caused by the contact between the punch 13 and the reference block 15 to fix the bottom dead center position of the punch 13. Keep it up,
A slider 20 having a taper 19 is inserted below the reference block 15, and the movement of the slider 20 is adjusted by the screws of the adjusting bolt 21 to adjust the reference block 15 in the up and down directions. Movable bending mold for bending the connector pins, characterized in that configured.

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2. The movable bending mold according to claim 1, wherein the cushion device (16) is formed of a coil spring (17).