CN213079854U - Electric connector contact pin bending device - Google Patents

Abstract

The electric connector contact pin bending device mainly comprises a base, a bearing seat, a positioning plate, a bending plate support, a bending plate, a bending handle, a key, a bearing rotating shaft, a bearing, a limiting screw, a nut, a sliding guide cover plate, a stop block, a spring, a movable forming block, an eccentric wheel rotating shaft and a clamping handle. When the electric connector is bent, the eccentric wheel is rotated by the clamping handle to push the movable forming block to clamp the electric connector insulating part, the center of the bending arc surface of the movable forming block is concentric with the rotation center of the bearing, and the bending plate is rotated by the bending handle to rotate around the rotation center of the bearing, so that the contact pin is forced to be bent around the bending arc surface of the movable forming block. The electric connector contact pin bending device is convenient to operate, high in bending efficiency, capable of achieving bending of the contact pins in a whole row, good in bending size precision and consistency, capable of effectively improving the contact pin bending quality, relatively simple in structure and low in manufacturing cost.

Description

Electric connector contact pin bending device

Technical Field

The utility model relates to an electric connector contact pin bending device mainly is applied to electric connector contact pin processing field.

Background

The electric connector is an indispensable component in electronic equipment, connects two active devices, transmits current or signals, and is widely applied to the industries of electronics, communication, aviation, aerospace and the like. The contact pin is a key part of the electric connector, the performance and the quality of the contact pin directly influence the reliability of the electric connector, and the contact pin is made of a metal material and is divided into a straight structure and a bent structure. The bent pin is formed by bending a straight pin, the bending is usually performed after the straight pin and the insulator are assembled, and the bending angle is generally 90 degrees.

At present, in the electric connector manufacturing industry, pin bending is mainly performed in the following two ways:

the utility model provides a simple and easy frock of mode for adopting metal sleeve structure bends the contact pin, need press from both sides tight insulating part with flat tongs when bending, overlaps the metal sleeve on the contact pin, and manual rotation metal sleeve bends the contact pin in bank one by one. The electric connector has the advantages that the number of contact pins of the electric connector is large, the distance between the contact pins is small, the bending force is difficult to control, the bending track is difficult to control, and the bending mode has the problems of inconvenience in operation, low bending efficiency and poor bending size precision and consistency;

in addition, the other mode is that an automatic pin bending machine is adopted, and a bending mechanism is driven by a motor or an air cylinder to bend pins in a whole row, so that the problem of manual single bending of a metal sleeve can be effectively solved, but the automatic pin bending machine is complex in structure, high in equipment cost and free of universality, and military electric connector manufacturers with various and small-batch characteristics exist in product production, and have the defects of low equipment input-output cost performance and low equipment utilization rate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric connector contact pin bending device can solve current electric connector contact pin and adopt the metal sleeve to bend the operation that exists inconvenient, bend inefficiency, the size precision of bending and the poor problem of uniformity to and adopt the automatic bender of contact pin to bend the equipment input cost height problem that exists.

The utility model adopts the technical proposal that: the electric connector contact pin bending device mainly comprises a base, a bearing seat, a positioning plate, a bending plate support, a bending plate, a bending handle, a key, a bearing rotating shaft, a bearing, a limiting screw, a nut, a sliding guide cover plate, a stop block, a spring, a movable forming block, an eccentric wheel rotating shaft and a clamping handle. The bearing seat is arranged on the left side of the base, the bearing is arranged in a hole of the bearing seat, one end of a bearing rotating shaft in the shape of a step shaft is arranged in a hole of the bearing, the other end of the bearing rotating shaft is arranged in a hole of a bent plate support, a key is arranged in a key groove of the bearing rotating shaft and the bent plate support and is used for preventing rotation and transmitting torque between the bearing rotating shaft and the bent plate support, a bent handle is fixed on the bent plate support, a positioning plate is arranged between the two bearing seats and is arranged on the base, an L-shaped sliding guide cover plate is fixedly connected with the base to form a slide way, the lower step of the movable forming block is arranged in the slide way and can slide along the slide way, a spring is arranged in a groove at the lower part of the movable forming block, one end of the spring is abutted against the bottom of the groove, one, the right end face of the movable forming block is always in contact with the outer circle of the eccentric wheel, the clamping handle is connected with the eccentric wheel through threads, and the limiting screw is installed on the sliding guide cover plate, connected through threads and screwed down through a nut.

Based on the above, the board profiled surface of bending is one row of arc groove, and the arc groove interval keeps unanimous with the hole interval of insulating part contact pin fixed orifices, and arc groove and the little clearance fit of contact pin external diameter, arc notch portion are equipped with V type inclined plane, are convenient for guide contact pin entering arc groove bottom.

Based on the above, the activity shaping piece is provided with the shaping face of bending, presss from both sides tight face, bends into the profile and comprises two planes and an arc surface, and the planar contained angle in two places is less than 90, is used for shaping contact pin department of bending inner arc when bending to play the effect of supporting and bearing the bending force, press tightly the insulating part in the constant head tank of locating plate when pressing from both sides tight face and being used for bending.

Based on the above, the center of the bending arc surface of the movable forming block is concentric with the rotation center of the bearing during bending, the bending plate rotates around the rotation center of the bearing, the contact pin is forced to be bent around the bending arc surface of the movable forming block, the height of the limiting screw is adjusted, the upper end surface of the limiting screw is utilized to limit the position of the bending plate support, and the precision and the consistency of the bending size of the contact pin are guaranteed.

Based on the above, before the contact pin is bent, the eccentric wheel is rotated by the clamping handle, the eccentric wheel pushes the movable forming block to slide in the slide way of the guide sliding cover plate and clamp the insulating part, after the contact pin is bent, the eccentric wheel is rotated in the opposite direction by the clamping handle, the eccentric wheel rotates in the direction far away from the movable forming block, and the movable forming block is separated from the insulating part under the action of the elastic force of the spring.

The beneficial effects of the utility model are that, adopt the utility model discloses electric connector contact pin bending device can realize that the whole row of contact pin is bent, convenient operation, and it is efficient to bend, and the size precision and the uniformity of bending are good, can effectively improve the contact pin quality of bending, and the structure is simple relatively, low in manufacturing cost, and the for military use electric connector's that is fit for many varieties, small batch, the high require for quality contact pin shaping of bending very much.

Drawings

Fig. 1 is a front sectional view of the structure of the electric connector pin bending device of the present invention;

fig. 2 is a top view of the structure of the electric connector pin bending apparatus of the present invention;

fig. 3 is a schematic view of the bending end state of the structure of the electric connector pin bending apparatus of the present invention;

FIG. 4 is a schematic view of a bearing housing construction;

FIG. 5 is a schematic view of a curved groove structure formed by bending a plate;

FIG. 6 is a front view of a bent plate support structure;

FIG. 7 is a top view of a bent plate support structure;

FIG. 8 is a schematic view of a loose form block configuration.

In the figure, 1, a base, 2, a bearing seat, 3, a positioning plate, 4, a bent plate support, 5, a bent plate, 6, a bent handle, 7, a key, 8, a bearing rotating shaft, 9, a bearing, 10, a limiting screw, 11, a nut, 12, a sliding guide cover plate, 13, a stop block, 14, a spring, 15, a movable forming block, 16, an eccentric wheel, 17, an eccentric wheel rotating shaft, 18, a clamping handle, 19, a contact pin and 20, an insulating piece and a clamping device are sequentially arranged in sequence from bottom to top

Detailed Description

The technical solution of the present invention will be described in further detail through the following embodiments.

As shown in the figure, it is easy to see: the electric connector pin bending device mainly comprises a base 1, a bearing seat 2, a positioning plate 3, a bending plate support 4, a bending plate 5, a bending handle 6, a key 7, a bearing rotating shaft 8, a bearing 9, a limiting screw 10, a nut 11, a sliding guide cover plate 12, a stop block 13, a spring 14, a movable forming block 15, an eccentric wheel 16, an eccentric wheel rotating shaft 17 and a clamping handle 18. The bearing seat 2 is arranged on the left side of the base 1, the bearing 9 is arranged in a hole 2a of the bearing seat 2, one end of a bearing rotating shaft 8 in the shape of a step shaft is arranged in the hole of the bearing 9, the other end of the bearing rotating shaft is arranged in a hole 4a of the bent plate support 4, a key 7 is arranged in the bearing rotating shaft 8 and a key groove 4b of the bent plate support 4 and is used for preventing rotation and transmitting torque between the bearing rotating shaft 8 and the bent plate support 4, the bent plate 5 is fixed on the bent plate support 4, a bent handle 6 is connected with the bent plate support 4 through threads, a positioning plate 3 is positioned between the two bearing seats 2 and is arranged on the base 1, an L-shaped sliding guide cover plate 12 is fixedly connected with the base 1 to form a slide way, the step at the lower part of the movable forming block 15 is arranged in the slide way and can slide along the slide way, the eccentric wheel 16 is positioned at the right side of the base 1, the eccentric wheel rotating shaft 17 penetrates through the base 1 and the eccentric wheel 16, under the elastic force action of the spring 14, the right end face 15a of the movable forming block 15 is always in contact with the excircle of the eccentric wheel 16, and the clamping handle 18 is connected with the eccentric wheel 16 through threads. The limit screw 10 is mounted on the slide guiding cover plate 12, connected by screw threads, and screwed down by a nut 11.

Before bending, the bending handle 6 is rotated to stop the bending plate 5 on the positioning plate 3, the eccentric wheel 16 is rotated by the clamping handle 18, the eccentric wheel 16 rotates towards the direction far away from the movable forming block 15, the movable forming block 15 is pushed by the elasticity of the spring 14 to be far away from the positioning plate 3, when the distance between the clamping surface 15b of the movable forming block 15 and the positioning surface 3a of the positioning plate 3 is far, the insulating part 20 provided with the contact pin 19 is arranged in the positioning groove 3b of the positioning plate 3 for positioning, the contact pin 19 exposed out of the insulating part 20 enters the forming arc groove 5a of the bending plate 5, the clamping handle 18 is rotated to ensure that the eccentric wheel 16 pushes the movable forming block 15 to clamp the insulating part 20 and is in a self-locking state, at the moment, the straight surface 15c of the forming surface of the movable forming block 15 is contacted with the contact pin 19, the center of the bending arc surface 15d of the movable forming, the bending plate 5 rotates around the rotation center of the bearing 9 and the center of the bending arc surface 15d of the movable forming block 15, the contact pin 19 is forced to gradually cling to the bending arc surface 15d and the straight surfaces 15c and 15e of the movable forming block 15, the bending forming is realized, the upper end of the adjusting limit screw 10 is used for limiting the bending plate support 4, and the final rotation angle and the final position of the bending plate 5 when the bending is finished are ensured.

Because the metalwork is bent and all can have certain resilience, and the unable accurate calculation of resilience volume, consequently, when bending for the first time, need be according to the 19 actual resilience condition of contact pin, debug contact pin 19 angle of bending through the height of adjusting stop screw 10, under the normal conditions, the board rotation angle of bending should be greater than 90, after guaranteeing that contact pin 19 angle and the size after bending meet the requirements, screw up stop screw 10 with nut 11, just can begin formal production.

After the contact pin 19 is bent, the bending handle 6 is rotated to stop the bending plate 5 on the positioning plate 3, the eccentric wheel 16 is rotated by the clamping handle 18, the eccentric wheel 16 rotates towards the direction far away from the movable forming block 15, the movable forming block 15 is far away from the positioning plate 3 under the pushing of the elastic force of the spring 14, when the distance between the clamping surface 15b of the forming block 15 and the positioning surface 3a of the positioning plate 3 is far, the contact pin 19 and the insulating piece 20 which are bent are taken out from the positioning groove 3b of the positioning plate 3, and the next contact pin bending operation process can be started.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can be modified or replaced by other methods, such as, but not limited to, the following description, drawings, and the like.

Claims (4)

1. The utility model provides an electric connector contact pin bending device, mainly by base, bearing frame, locating plate, the board support of bending, the board of bending, the handle of bending, key, bearing pivot, bearing, stop screw, nut, lead smooth apron, dog, spring, activity shaping piece, eccentric wheel pivot, clamp handle and constitute characterized by: the bearing seat is arranged on the left side of the base, the bearing is arranged in a hole of the bearing seat, one end of a bearing rotating shaft in the shape of a step shaft is arranged in a hole of the bearing, the other end of the bearing rotating shaft is arranged in a hole of a bent plate bracket, a key is arranged in the bearing rotating shaft and a key groove of the bent plate bracket, a bent plate is fixed on the bent plate bracket, a bent handle is connected with the bent plate bracket through threads, a positioning plate is arranged between the two bearing seats and arranged on the base, an L-shaped sliding guide cover plate is fixedly connected with the base to form a slide way, a step on the lower part of a movable forming block is arranged in the slide way, a spring is arranged in a groove on the lower part of the movable forming block, one end of the spring is abutted against the bottom of the groove, one end of the spring is abutted against, the connection is made by a screw thread and tightened with a nut.

2. The electrical connector pin bending apparatus as claimed in claim 1, wherein: the board profiled surface of bending is one row of arc groove, and the arc groove interval keeps unanimous with the hole interval of insulating part contact pin fixed orifices, and arc groove and the little clearance fit of contact pin external diameter, arc notch portion are equipped with V type inclined plane, are convenient for guide contact pin entering arc groove bottom.

3. The electrical connector pin bending apparatus as claimed in claim 1, wherein: the movable forming block is provided with a bending forming surface and a clamping surface, the bending forming surface is composed of two planes and an arc surface, the included angle of the two planes is smaller than 90 degrees, the movable forming block is used for forming an inner arc at the bending part of the contact pin when bending, the function of supporting and bearing the bending force is achieved, and the clamping surface is used for compressing the insulating part in the positioning groove of the positioning plate when bending.

4. The electrical connector pin bending apparatus as claimed in claim 1, wherein: when the pin bending machine is used for bending, the center of the bending arc surface of the movable forming block is concentric with the bearing rotating center, the bending plate rotates around the bearing rotating center, the pin is forced to be bent around the bending arc surface of the movable forming block, the height of the limiting screw is adjusted, and the upper end surface of the limiting screw is utilized to limit the position of the bending plate support.

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