KR20030062304A - Processing method and apparatus of sleeve pin for heading machine - Google Patents

Abstract

PURPOSE: An apparatus and a method for fabricating a sleeve pin are provided to improve productivity and to reduce processing time of a workpiece by forming an edge part or calking part formed in an inner surface of a sleeve pin through one extruding process using a heading machine. CONSTITUTION: A sleeve pin fabricating apparatus includes a casting mold(29) mounted on a die of a machine body so as to receive a workpiece. A first punch(32) is elastically inserted into the casting mold(29) in order to strike one edge part of the workpiece(13). A striking mold(30) is mounted on a reciprocating table. A second punch(34) is elastically inserted into the striking mold(30) so as to strike the other edge part of the workpiece(13). A third punch(36) is provided to strike a center portion of the workpiece(13).

Description

Apparatus for manufacturing sleeve pin by heading machine and manufacturing method thereof {Processing method and apparatus of sleeve pin for heading machine}

The present invention uses a heading machine (Heading machine), the corner portion or the caulking portion formed on the inner surface of the sleeve pin (sleeve pin) used to connect electric wires, such as various electrical and electronic products or industrial machinery The present invention relates to an apparatus for manufacturing a sleeve pin by a heading machine and a method for manufacturing the same, which can be processed by an extrusion operation.

As is well known, the heading machine cuts to a certain length while intermittently transferring the material wound on the roll, and then mounts the material on the carriage to form a blow mold that operates before and after and a material for processing into a predetermined shape. It is used to manufacture mechanical elements such as bolts and rivets by means of molds.

As the application for such a heading machine, a number of techniques are known, including, for example, publications such as Korean Patent No. 0064547 (registered on August 20, 1993) and 0196347 (registered on Feb. 19, 1999).

The structure of these heading machines includes a drive unit for largely operating the machine body, a material supply unit for transferring the material by the rotational force of the drive unit, a cutting unit for cutting the material conveyed through the material supply unit to a certain length; And an extrusion part for processing the material into a predetermined shape, and the other components allow the heading machine to be sequentially driven in accordance with a predetermined program.

By the way, in the heading machine described above, the end of the material is processed according to the shape and structure of the mold mounted on the extruded part to process various mechanical elements such as various types of rivets, bolts, and other fasteners. However, little is known that it is configured to process hollow hollow materials.

In particular, in the case of sleeve pins used to connect copper wires at the ends of electric wires for wiring of various electrical and electronic products or industrial machinery, the size and length of the wires may be The thickness varies considerably.

In general, the sleeve pin is formed by forming a caulking portion by pressing the center portion of the material after cutting the hollow material to a certain length, and inserts the copper wire portion of the wire into the inner surface of the both sides of the sleeve pin, Press outward to allow wires to interconnect.

However, since the end surface of the material is cut at right angles, it is difficult to enter when inserting the copper wire portions of the wires on both sides of the sleeve pin, and the worker is experiencing a considerable difficulty in the assembling process. It takes a considerable amount of time and has a problem that the work efficiency is significantly reduced.

As a way to improve this point, by cutting the edges of the inner surface of the material into a shelf every day, the chamfering process, so that the connection to the copper wire of the wire can be made more smooth, but in terms of product productivity It was not possible to improve efficiency in Esau.

The present invention has been made in view of the above problems, and an object of the present invention is to form a corner portion or a caulking portion formed on the inner surface of a sleeve pin used to connect wires of various products by one extrusion operation by a heading machine. The present invention provides a manufacturing apparatus and a manufacturing method of a sleeve pin for a wire by a heading machine that can greatly reduce the processing time of the material to improve productivity and lower the unit cost of the product.

1 is a plan view schematically showing the configuration of a heading machine to which the present invention is applied;

Figure 2 is a view showing the separate components for processing the sleeve pin by the heading machine shown in Figure 1,

3 is a plan view showing the configuration of the driving means for forming a caulking portion in the material;

4A and 4B are schematic configuration diagrams showing an operation relationship between a workpiece and respective punches.

<Explanation of symbols for main parts of drawing>

10: heading machine 11: drive unit

12: Roll 13: Material

13a: inner surface 13b, 13c: corner portion

13d: caulking part 14: material supply part

15: cutting part 16: extrusion part

17: motor 18: drive wheel

18a: axis of rotation 19: rod

20: gear part 21: machine body

22: roller 23: guide

24: guide roller 25: cutter (saw blade)

26: grip part 27: die

28: shuttle 29: molding mold

29a: body 29b: first insertion hole

29c: maintenance hole 29d: second insertion hole

29e: Through Hole 30: Blow Mold

30a: body 30b: insertion hole

30c: through hole 31,33,35: spring

32, 34, 36: Punch 37: Guide member

37a: body 37b: insertion hole

37c: through hole 38: cam

39: roller 40: spring

41: working rod 42: shaft

43: operation piece 44: hitting rod

44a: locking pin 45: first guide plate

45a, 45b: Regulation 46: Second Guide

46a: Regulation 47: Pushpins

48a, 48b: first and second springs

A feature of the present invention for achieving the object as described above is a device for manufacturing a sleeve pin for cutting the wire to a certain length while transporting a hollow material, the molding die mounted on the die of the machine body to enter and exit the material And a first punch that is elastically fitted to the molding mold and pushes forward and backward so as to strike one corner portion formed on the inner surface of the material, and a blow mold mounted on the carriage of the machine body to face on the same center line of the molding mold. And a second punch that is elastically fitted to the blow mold to advance and retreat to hit the other edge formed on the inner surface of the material, and moves forward and at right angles with respect to the first punch mounted to the molding die. A third funnel fitted resiliently to retreat and acting to strike the longitudinal center of the workpiece by means of a drive The can be added.

Here, the molding die is formed in the center of the body through the spring is inserted into the first insertion hole and the material entering the first punch hole and the material entering, the second insertion hole and the penetrating direction perpendicular to the central portion of the holding hole Each ball is formed.

In addition, the blow mold is formed in the center of the body of the insertion hole and the through-hole through which the second punch is mounted via a spring, respectively.

The third punch has a guide member that is elastically fitted through a spring to a second insertion hole formed in the molding mold, and enters and exits into the holding hole of the molding mold through an insertion hole and a through hole formed in the body of the guide member. Consists of.

In addition, the drive means has a cam formed integrally with the rotary shaft of the drive wheel rotated by a motor, an actuating rod having a roller in contact with the cam and moving elastically in a horizontal direction, and one side at the end of the actuating rod. The contact piece is composed of an operation piece that is in contact with the shaft and rotates elastically, and a striking rod that is in linear contact with the other side of the operation piece.

And, the operating rod is configured to be elastically moved by a spring installed on one side is maintained on a pair of regulating pieces formed on the upper side of the first guide plate mounted on the machine body, the striking rod is mounted on the machine body The first and second springs, which are held on the restriction piece formed on the upper side of the second guide plate and connected to the locking pins formed on the striking rod and the fixing pins mounted on the shaft and the machine body of the operation piece, respectively, are elastically supported. It is configured to move.

Another feature of the present invention is a method for manufacturing a sleeve pin for a wire by cutting to a certain length while conveying a hollow material, the intermittent transfer of a wire-shaped material wound on a roll by a certain length along the length direction Cutting the material by a cutter provided in the cutting part, and holding the cut material by the gripping part to position the material on the center line of the molding die mounted on the die; Processing both end edges of the inner surface of the material by pushing the material into the holding hole of the molding mold by hitting the material between the first and second punches mounted on the molding mold and the blow mold, respectively; The material is pushed out of the holding hole of the molding die by the first punch while simultaneously moving the second punch to the original position. It is made of a step, wherein the inner surface of both ends of the material processing, and at the same time the caulking portion is formed on the central side of the material by a third punch that operates in a vertical direction with respect to the first and second punches. have.

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

First, FIG. 1 is a plan view schematically showing the configuration of a heading machine to which the present invention is applied. As shown in the related art, FIG. ) Is provided with a raw material supply unit 14 for intermittently conveying, a cutting unit 15 for cutting the raw material 13 to a constant length, and an extrusion unit 16 for processing the raw material 13.

Here, the driving unit 11 is a rotational force of the motor 17 is transmitted to the gear unit 20 through the driving wheel 18 and the rod 19, the driving wheel 18 and the gear unit 20 By rotation, each component of the machine body 21 can be operated.

In addition, the material supply unit 14 has a roller 23 and the guide roller 24 provided with a wire-like material 13 wound on the roll 12 provided on one side of the machine body 21 to the guide 22. Therefore, it is to be continuously supplied into the machine body 21 by a certain length.

The cutting part 15 cuts the raw material 13 supplied from the roll 12 by the cutter (saw blade) 25 and simultaneously holds the cut material 13 as the holding part 26. In this state, it is possible to change the position in the direction perpendicular to the conveying direction of the raw material 13 and move it toward the extruded portion 16. The extruded portion 16 is a conventional die 27 and a carriage 29 )

On the die 27 and the carriage 28, a molding mold 29 and a blow mold 30 as shown in FIG. 2 are mounted, respectively.

As shown in the figure, the molding die 29 has a first insertion hole 29b and a holding hole 29c in the center of the body 29a, and is perpendicular to the center of the holding hole 29c. The second insertion hole 29d and the through hole 29e are respectively formed in the direction, and the first insertion hole 29b of the molding die 29 is elastically moved forward and backward through the spring 31. The first punch 32 is fitted to strike the edge portion 13b formed on one inner surface 13a of the raw material 13.

In addition, the injection mold 30 mounted on the carriage 28 opposite to the same center line of the molding die 29 has an insertion hole 30b and a through hole 30c respectively formed in the center of the body 30a. The insertion hole 30b is fitted with a second punch 34 that is elastically advanced and retracted through the spring 33 to form the corner portion 13c formed on the other inner surface 13a of the material 13. You can hit.

In addition, the second insertion hole 29d and the through hole 29e of the molding die 29 are interposed with the spring 35 so as to move forward and backward in a direction perpendicular to the first and second punches 32 and 34. The third punch 36, which is elastically advanced and retracted, can hit the central portion in the longitudinal direction of the material 13 via the guide member 37 to form the caulking portion 13d.

The guide member 37 has an insertion hole 37b and a through hole 37c forming a step in the body 37a, and a third punch (through the insertion hole 37b and the through hole 37c). 36 is allowed to enter and exit the retaining hole (29c) of the molding die 29, the third punch 36 is to be intermittently operated by the drive means installed on one side of the machine body (21) have.

With this configuration, as shown in FIGS. 4A and 4B, the edge portions 13b and 13c formed on the inner surfaces 13a of both ends of the material 13 are formed by the first and second punches 32 and 34. At the same time, the caulking portion 13d can be formed in the center of the material 13 by the third punch 36.

As shown in FIG. 3, the drive means includes a cam 38 which is integrally formed on the rotation shaft 18a of the drive wheel 18 that is rotated by the motor 17, and the cam 38. An actuating rod 41 having a roller 39 in contact and elastically moving in a horizontal direction by a spring 40 and one end of the actuating rod 41 are in contact with each other and elastically about the shaft 42. It consists of the operation piece 43 which rotates, and the striking rod 44 which contacts with the other side of this operation piece 43, and moves linearly.

The actuating rod 41 is configured to be elastically moved by being held by a pair of regulating pieces 45a and 45b formed on the upper side of the first guide plate 45 mounted on the machine body 21. 44 is held by the restricting piece 46a which is formed above the second guide plate 46 attached to the machine body 21.

In addition, the striking rod 44 has a locking pin (44a) is formed to be connected to the first pin and the fixed pin 47 mounted on the shaft 42 and the machine body 21 of the operation piece 43, respectively; It is comprised so that it may move elastically by the 2nd spring 48a, 48b.

In the present invention configured as described above, as shown in FIG. 1, the rotational force is transmitted to the driving wheel 18 by the operation of the motor 17 constituting the driving unit 11, and the gear unit is interposed through the rod 19. The material supply unit 14 is operated by being transmitted to the 20.

Therefore, the raw material 13 wound on the roll 12 is intermittently conveyed by a certain length via the guide 23 and the guide roller 24.

Thereafter, the raw material 13 is cut by the cutter (saw blade) 25 provided in the cutting part 15, and the cut material 13 is held at the end of the grip part 26. The die 27 and the carriage 28 constituting the extruded portion 16 are moved on the center lines.

Subsequently, the raw material 13 is inserted into the holding hole 29c formed in the molding die 29 by the forward movement of the carriage 28, and at the same time, the first insertion hole in the molding die 29 It comes in contact with the end of the first punch 32 attached to 29b).

At this time, through the insertion hole 30b and the through hole 30c in the blow mold 30, the second punch 34 moves forward elastically to hit the material 13, as shown in FIGS. 4A and 4B. Likewise, the inner surface 13a of both ends 13b and 13c of the raw material 13 are processed, and at the same time, the third punch 36 is operated by the driving means installed on one side of the machine body 21. A caulking portion 13d can be formed on one side of the center of the material 13.

That is, as shown in FIG. 3, as the cam 38 integrally formed on the rotation shaft 18a of the drive wheel 18 rotated by the motor 17 pushes the roller 39, the operation rod 41. ) Moves elastically in the horizontal direction, and the operation piece 43 in contact with the end of the operation rod 41 is rotated around the shaft 42 like an imaginary line.

Accordingly, the striking rod 44 in contact with the other side of the operation piece 43 moves linearly to push the third punch 36 so that the caulking portion 13d can be formed by striking the material 13. First and second springs connected to the engaging pin 44a of the striking rod 44, the shaft 42 of the operation piece 43, and the fixing pin 47 mounted to the machine body 21, respectively. The striking rod 44 is retracted by 48a and 48b.

Thereafter, the second and third punches 34 and 36 are moved backward to their original positions, and the first punch 32 is moved forward to hold the material 13 in the holding hole 29c of the molding die 29. It is to be pushed out from the), and by repeating this operation it is possible to continuously process the material (13).

Meanwhile, in the above-described embodiment, the case where the caulking portion 13d is formed while processing the corner portions 13b and 13c on both sides of the inner surface 13a of the raw material 13 has been described. In the case of removing the punch 36 or a component including the same, the material 13 is formed by the first punch 32 mounted on the molding die 29 and the second punch 34 mounted on the blow mold 30. Of course, only the corners 13b and 13c formed on the inner surface 13a of the surface may be processed.

Although the above-described embodiments have been described with respect to the most preferred examples of the present invention, it is not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications can be made without departing from the technical spirit of the present invention.

As described above, according to the manufacturing apparatus and the manufacturing method of the wire sleeve pin by the heading machine according to the present invention, once the inner edge of the sleeve pin or caulking portion used for connecting the wires of various products by the heading machine Since it can be molded by the extrusion operation, it is possible to greatly shorten the processing time of the material to improve the productivity, and to lower the unit cost of the product.

Claims (9)

An apparatus for manufacturing a sleeve pin for electric wire by cutting to a certain length while conveying a hollow material, A molding mold 29 mounted on the die 27 of the machine body 21 and into which the material 13 enters and exits, A first punch 32 which is elastically fitted to the molding mold 29 and moves forward and backward so as to strike one corner portion 13b formed on the inner surface 13a of the material 13; A blow mold 30 mounted on the carriage 28 of the machine body 21 so as to face the same center line of the molding mold 29; A second punch 34 that is elastically fitted to the blow mold 30 and moves forward and backward so as to strike the other edge portion 13b formed on the inner surface 13a of the material 13; It is elastically fitted through the guide member 37 so as to move forward and backward in a perpendicular direction with respect to the first punch 32 mounted on the molding die 29, the longitudinal center portion of the material 13 by the drive means Apparatus for manufacturing a sleeve pin for an electric wire by a heading machine, characterized in that consisting of a third punch (36) operating to strike the. According to claim 1, wherein the molding die 29, the first insertion hole (29b) and the material 13, the first punch 32 is mounted to the center of the body (29a) via a spring 31 is The holding hole 29c which goes in and out is formed, and the 2nd insertion hole 29d and the through hole 29e are formed in the orthogonal direction at the center part of this holding hole 29c, respectively. Apparatus for manufacturing sleeve pin for electric wire. The method of claim 1, wherein the blow mold 30, the insertion hole (30b) and the through hole (30c) in which the second punch 34 is mounted via the spring 33 in the center of the body (30a), respectively Apparatus for producing a sleeve pin for electric wire by a heading machine, characterized in that formed. The guide according to any one of claims 1 to 3, wherein the third punch (36) is elastically fitted through a spring (35) by a second insertion hole (29d) formed in the molding die (29). It has a member 37, and is configured to enter and exit the holding hole 29c of the molding die 29 through the insertion hole 37b and the through hole 37c formed in the body 37a of the guide member 37. Apparatus for producing a sleeve pin for an electric wire by a heading machine, characterized in that. 2. The driving means according to claim 1, wherein the driving means includes a cam (38) formed integrally with the rotating shaft (18a) of the driving wheel (18) which is rotated by the motor (17), and the roller which is in contact with the cam (38). An operating rod 41 having a 39 and elastically moving in a horizontal direction, an operation piece 43 in which one side is in contact with an end of the operating rod 41 and pivots about an axis 42 elastically; An apparatus for manufacturing a sleeve pin for an electric wire by a heading machine, characterized by comprising a striking rod (44) contacting the other side of the operation piece (43) to move linearly. 6. The spring of claim 5, wherein the actuating rod (41) is held on a pair of regulating pieces (45a, 45b) formed on an upper side of the first guide plate (45) attached to the machine body (21) and installed on one side. It is configured to move elastically by 40, the striking rod 44 is held on the restriction piece 46a formed on the upper side of the second guide plate 46 mounted on the machine body 21, First and second springs connected to the engaging pin 44a formed on the striking rod 44, the shaft 42 of the operation piece 43, and the fixing pin 47 mounted to the machine body 21, respectively. 48a, 48b) The apparatus for manufacturing a wire sleeve pin by a heading machine, characterized in that configured to move elastically. Apparatus for manufacturing a sleeve pin for electric wire by cutting to a certain length while conveying a hollow material, A molding mold 29 mounted on the die 27 of the machine body 21 and into which the material 13 enters and exits, A first punch 32 which is elastically fitted to the molding mold 29 and moves forward and backward so as to strike one corner portion 13b formed on the inner surface 13a of the material 13; A blow mold 30 mounted on the carriage 28 of the machine body 21 so as to face the same center line of the molding mold 29; It is characterized in that it consists of a second punch 34 to be resiliently fitted to the blow mold 30 to advance and retreat to hit the other edge portion 13b formed on the inner surface (13a) of the material (13) Apparatus for producing a sleeve pin for electric wire by using a heading machine. As a method for manufacturing a sleeve pin for electric wire by cutting to a constant length while conveying a hollow material, Intermittently conveying the wire-shaped material 13 wound around the roll 12 along its longitudinal direction by a predetermined length; The molding material 29 mounted on the die 27 by cutting the raw material 13 by the cutter 25 provided in the cutting part 15 and holding the cut material 13 by the holding part 26. Positioning on the centerline of The raw material 13 is pushed into the holding hole 29c of the molding mold 29 by the blow mold 30 mounted on the carriage 29, and simultaneously to the molding mold 29 and the blow mold 30, respectively. By hitting the material 13 between the mounted first and second punches 32 and 34, the edges 13b and 13c of both ends of the inner surface 13a of the material 13 are processed, and at the same time, Caulking portion (13d) is formed on the central side of the material 13 by the third punch 36, which operates in a vertical direction with respect to the first and second punch (32, 34), At the same time, the second and third punches 34 and 36 are moved backward to their original positions, and the first punch 32 pushes the material 13 out of the holding hole 29c of the molding die 29. Method of manufacturing a sleeve pin for an electric wire by a heading machine, characterized in that consisting of a step. As a method for manufacturing a sleeve pin for electric wire by cutting to a constant length while conveying a hollow material, Intermittently conveying the wire-shaped material 13 wound around the roll 12 along its longitudinal direction by a predetermined length; The molding material 29 mounted on the die 27 by cutting the raw material 13 by the cutter 25 provided in the cutting part 15 and holding the cut material 13 by the holding part 26. Positioning on the centerline of The raw material 13 is pushed into the holding hole 29c of the molding mold 29 by the blow mold 30 mounted on the carriage 29, and simultaneously to the molding mold 29 and the blow mold 30, respectively. Machining the edges 13b and 13c of both ends of the inner surface 13a of the raw material 13 by striking the raw material 13 between the first and second punches 32 and 34 mounted; Moving the second punch 34 back to its original position and simultaneously pushing the material 13 out of the holding hole 29c of the molding die 29 by the first punch 32. A method of manufacturing a sleeve pin for an electric wire by means of a heading machine.