KR200442918Y1 - Terminal forming apparatus - Google Patents

Abstract

The present invention relates to an apparatus for molding a terminal having a coupling portion formed in a rectangular cylindrical shape. According to the present invention, an upright wall 7 is formed at right angles to both ends of the base 6, and a ceiling plate 8 and an overlapping plate 9 are provided at the ends of the upright wall 7, respectively. A terminal forming apparatus for forming a terminal having a joining portion (5) in which an overlap plate (9) overlaps, comprising: a lower mold holder (10); An upper holder 40 for lifting and lowering relative to the lower holder 10; A swaging die 20 and a swaging punch 50 for flattening the coupling part 5; A sheet bending die 22 and a sheet bending punch 52 for bending the ceiling plate 8 and the stacking plate 9 inclined with respect to the upstanding wall 7; A base die 26 and a base punch 54 for bending the upstanding wall 7 at a predetermined angle with respect to the base 6; An upright wall die (30) and an upright wall punch (56) for bending the upright wall (7) with a bending cam (32) perpendicular to the base (6); It is installed on the side of the upright wall punch 56 and protruding portions are formed on both ends of the upright wall punch to hit the tip of the upright wall 7 so that the ceiling plate 8 and the overlapping plate 9 are upright. A bending punch bent at a predetermined angle with respect to the bending punch; A first stacking plate die 38 and a first stacking plate punch 60 for bending the ceiling plate 8 and the stacking plate 9 at a predetermined angle with respect to the upstanding wall 7; The second stacking plate die 39 and the second stacking plate punch are installed to correspond to each other in the lower mold retainer 14 and the upper mold retainer 44 so as to bend the stacking plate 9 with respect to the upright wall 7. And 64.

According to the terminal forming apparatus according to the present invention having such a configuration, it is possible to more accurately and firmly form a coupling portion having a rectangular cylindrical shape in which a stacking plate is overlapped on a ceiling plate, thereby increasing the quality of the terminal.

Terminal, Forming Equipment, Progressive, Die, Punch

Description

Terminal forming apparatus

1 is a plan view showing the configuration of a strap that a plurality of terminals are connected to the carrier.

2 is a cross-sectional view showing that the coupling portion of the terminal cut along the line AA 'of FIG.

Figure 3 is a cross-sectional view showing the configuration of a preferred embodiment of a terminal forming apparatus according to the present invention.

Figure 4 is an explanatory view sequentially showing that the coupling portion of the terminal is formed in the device according to the present invention.

Figure 5 is a cross-sectional view sequentially showing the shape in which the coupling portion of the terminal is formed in the device according to the present invention.

Explanation of symbols on the main parts of the drawings

1: carrier 2: terminal

3: body portion 4: barrel portion

5: coupling part 6: base

7: upright wall 8: ceiling

9: overlap plate 10: lower holder

12: backing plate 14: lower retainer

16: die pocket 20: swaging die

22: sheet bending die 24: inclined surface

26: base die 28: inclined surface

30: upright wall die 32: bending cam

36: interlocking inclined plane 38: first stacking plate die

39: second overlapping plate die 40: upper holder

42: backing plate 44: upper retainer

46: Punch Pocket 50: Swaging Punch

52: plate bending punch 54: base punch

56: upright wall punch 58: driving slope

60: first laminated plate punch 62: pressing portion

64: second overlapping punch 66: pressing groove

The present invention relates to a terminal forming apparatus, and more particularly to an apparatus for forming a terminal having a coupling portion of a rectangular cylindrical shape.

In progressive molds, a trap is created in which the terminals are connected at regular pitch intervals to the carrier. In the progressive mold, a plurality of dies and punches are installed to correspond to each other at a predetermined pitch interval so that the work is sequentially performed on each part of the strap so that the terminal can be finally manufactured. Here, the terminal refers to the final product, but in the present specification, the part that will be the terminal, that is, the part of the strap on which work has not yet been completed, is also referred to as a terminal for convenience.

Recently, especially as the coupling portion of the terminal has various functions, its configuration tends to be very complicated. Therefore, making the coupling portion of the terminal more accurate and robust is one of the tasks of the skilled person.

The present invention is to solve the problems of the prior art as described above, an object of the present invention is to provide a terminal forming apparatus for forming a terminal having a coupling portion formed in a rectangular cylinder shape, in particular the overlap plate is superimposed on the ceiling plate will be.

According to a feature of the present invention for achieving the object as described above, the present invention is formed with an upright wall orthogonal to both ends of the base and the top plate and the overlap plate is provided at the tip of the upright wall, respectively, the overlap plate is overlapped on the ceiling plate A terminal forming apparatus for forming a terminal having a coupling portion, comprising: a lower mold holder having a lower mold retainer; An upper mold holder provided above the lower mold holder and being relatively lifted with respect to the lower mold holder and provided with an upper mold retainer; A swaging die and a swaging punch installed on the lower retainer and the upper retainer to process the coupling part flat; Plate bending dies and sheet bending punches installed on the lower retainer and the upper retainer to bend the ceiling plate and the overlapping plate at an inclined angle with respect to an upright wall; A base die and a base punch installed on the lower retainer and the upper retainer to bend the upright wall with respect to the base at a predetermined angle; An upright wall die and an upright wall punch installed on the lower retainer and the upper retainer to bend the upright wall with a bending cam perpendicularly to the base; A bending punch installed at a side of the upright wall punch and protruding from both ends of the upright wall to strike the front end of the upright wall to bend the ceiling plate and the overlapping plate at a predetermined angle with respect to the upright wall; A first stacking plate die and a first stacking plate punch installed on the lower retainer and the upper retainer to bend the ceiling plate and the stacking plate at a predetermined angle with respect to the upstanding wall; And a second stacking plate die and a second stacking plate punch installed on the lower retainer and the upper retainer to bend to overlap the stacking plate with respect to the upstanding wall.

The adjusting die and the adjusting punch are further provided at the positions corresponding to the lower retainer and the upper retainer respectively passing through the second stacking plate die and the second stacking plate punch to bend the stacking plate with respect to the upright wall. .

The plate bending die is formed with a recess having a width equal to the width of the base and the standing wall, and the base die has a recess having a width equal to the width of the base.

Both sides of the upright wall die are supported in a direction away from each other by a restoring member, and a bending cam having an interlocking inclined surface interlocked with a driving inclined surface of the upright wall punch is installed to enable a straight reciprocating motion.

Sides of the upright wall punches are provided such that a bending punch formed by protrusions protruding from both ends of the upright wall punch does not interfere with the upright wall punch. Molded to be bent at a predetermined angle to the wall.

The first overlap plate punch is formed by recessing the adjustment grooves inclined from one side to the other side so as to correspond to the ceiling plate, and one end of the adjustment groove is formed so as to deviate from the trajectory of the overlap plate.

According to the terminal forming apparatus according to the present invention having such a configuration, it is possible to form a coupling portion having a rectangular cylindrical shape so that the overlap plate is overlapped with the ceiling plate, and thus, there is an advantage in that the quality of the terminal is increased.

Hereinafter, a preferred embodiment of a terminal forming apparatus according to the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

FIG. 1 is a plan view showing the configuration of a strap in which a plurality of terminals are connected to a carrier, and FIG. 2 is a cross-sectional view showing that a coupling portion of a terminal cut along the line AA ′ of FIG. 1 is completed. 3 is a schematic cross-sectional view of a terminal forming apparatus according to the present invention.

First, referring to Figures 1 and 2, looks at the configuration of the terminal made in the terminal forming apparatus according to the present invention. The terminal strap means that the terminal 2 is connected to the carrier 1 at a constant pitch interval. The terminal 2 is provided with a barrel portion 4 at one end of the body portion 3, the coupling portion 5 is provided at the other end of the body portion 3 that is opposite to the barrel portion (4).

The body portion 3 is a portion forming the skeleton of the terminal 2, and is not actually a clearly divided portion of the barrel portion 4 and the coupling portion (5). The barrel portion 4 is a portion that is connected to the wire, the coupling portion 5 is a portion that is coupled to the mating terminal (2). In general, the coupling part 5 is configured in a box shape at the receptacle terminal 2.

A cross-sectional view corresponding to the line AA ′ of FIG. 1 among the coupling parts 5 is illustrated in FIG. 2. 2 is a state in which the engaging portion 5 of the terminal 2 is completed. The base 6 here forms the bottom of the coupling part 5. At both ends of the base 6, an upstanding wall 7 is formed bent to be perpendicular to the surface of the base 6. A ceiling plate 8 is formed at the tip of one of the upstanding walls 7. The ceiling plate 8 is formed to face the base 6 to form a ceiling of the inner space of the coupling portion 5. The other end of the upstanding wall 7 is provided with an overlapping plate 9 so as to overlap on the ceiling plate 8.

Meanwhile, referring to FIG. 3, a preferred embodiment of a terminal forming apparatus for forming a coupling portion of a terminal of the type shown in FIGS. 1 and 2 will be described.

On the lower mold holder 10, the backing plate 12 and the lower mold retainer 14 are mounted. The backing plate 12 and the lower mold retainer 14 are fastened together on the lower mold holder 10. The backing plate 12 may be considered to be substantially part of the lower mold retainer 14. The die pocket 16 is formed in the lower mold retainer 14 to be opened upward. A plurality of die pockets 16 are formed in the lower mold retainer 14 at predetermined pitch intervals. For reference, the lower mold retainer 14 may have a substantially rectangular plate shape, and a plurality of lower mold retainers 14 may be provided in the entire progressive mold.

A swaging die 20 is installed in one of the die pockets 16 of the lower retainer 14. The swaging die is formed so that the width of the upper surface thereof is larger than the width when the coupling part 5 is in the unfolded state. The swaging die 20 serves to support the terminal 2 at the time of flattening the coupling part 5 which is not yet bent.

A plate bending die 22 is installed in the die pocket 16 adjacent to the swaging die 20. A recess 22 'is formed on a surface of the sheet bending die 22. The width of the recess 22 'is equal to the sum of the widths of the base 6 of the coupling part 5 and the upstanding walls 7 on both sides. Inclined surfaces 24 are formed at both sides of the recess 22 '. The inclined surface 24 is formed to be inclined downward toward the bottom surface of the recess 22 '. The portion to be the ceiling plate 8 and the overlapping plate 9 by the inclined surface 24 is bent by a predetermined angle with respect to the portion to be the upstanding wall 7.

The base die 26 is installed in the die pocket 16 adjacent to the sheet bending die 22. Concave portions 26 'are formed on the surface of the base die 26 as well. The width of the recess 26 'is formed to correspond to the width of the base 6. At both ends of the concave portion 26 ', the inclined surface 28 is formed to be inclined at a predetermined angle. The inclined surface 28 is formed to be inclined downward toward the inside of the concave portion 26 '. The inclined surface 28 causes the portion to be the upstanding wall 7 to be bent by a predetermined angle with respect to the base 6.

An upright wall die 30 is provided in the die pocket 16 adjacent to the base die 26. The upper surface of the upright wall die 30 may have a width such that the base 6 can be mounted thereon. The surface of the upright wall die 30 is formed flat.

Bending cams 32 are respectively installed in the space between the upright wall die 30 and the guide block 29. The bending cam 32 performs a linear reciprocating motion between the upright wall die 30 and the guide block 29. Two bending cams 32 are formed symmetrically.

Spring mounting portions (not shown) are formed at both ends of the bending cams 32 facing each other. The spring seating portion is formed to be recessed to serve to support the end of the restoring member 34 to be described below.

The bending cam 32 is supported in a direction away from each other by the restoring member 34. That is, normally, the bending cam 32 is spaced apart from the upright wall die 30 by the restoring force of the restoring member 34. The restoration member 34 passes through the upright wall die 30 so that both ends thereof are supported by a spring seating portion (not shown) of the bending cam 32.

On the other hand, the interlocking slopes 36 are formed at both ends of the bending cam 32 in the longitudinal direction, respectively. The interlocking slope 36 is in contact with the upright wall punch 56 described below to guide. The upright wall punch 56 is guided along the interlocking slope 36 so that the bending cam 32 is linearly moved.

The die pocket 16 adjacent to the upright wall die 30 is provided with a first overlap plate die 38. The first overlapping plate die 38 has a width such that the upper surface thereof can be mounted on the base 6 and is formed flat.

The die pocket 16 adjacent to the first overlap plate die 38 is provided with a second overlap plate die 39. The second stacking plate die 39 also has a width such that the upper surface of the base 6 can be mounted, it is formed flat.

The die pocket 16 adjacent to the second stacking plate die 39 is provided with an adjusting die 39 '. The adjusting die 39 'also has an upper surface that is flat so that the base 6 can be placed thereon.

The upper mold holder 40 is provided at the upper portion of the lower mold holder 10 to be elevated relative to the lower mold holder 10. A backing plate 42 and an upper retainer 44 are installed on the lower surface of the upper holder 40. The upper holder 40 is lifted by a separate device. The backing plate 42 and the upper retainer 44 are mounted together on the upper holder 40. In fact, the backing plate 42 may be regarded as part of the upper retainer 44.

A plurality of punch pockets 46 are formed in the upper retainer 44, and the punch pockets 46 correspond to the dies 20, 22, 26, 30, 38, 39, and 39 ', respectively. Punchs 50, 52, 54, 56, 59, 60, 64, 64 'are provided. The punches 50, 52, 54, 56, 59, 60, 64, and 64 'are driven integrally with the upper holder 40. The punches 50, 52, 54, 56, 59, 60, 64, and 64 'are also provided in the upper retainer 44 at regular pitch intervals.

A swaging punch 50 is installed in the punch pocket 46 of the upper retainer 44 so as to correspond to the swaging die 20. The lower surface of the swaging punch 50 has a width corresponding to the width of the swaging die 20. The lower surface of the swaging punch 50 is formed flat. The swaging punch 50 strikes the engaging portion 5 of the terminal 2 seated on the swaging die 20 so that the entire engaging portion 5 of the terminal 2 is flat.

The sheet bending punch 52 is installed in the punch pocket 46 of the upper retainer 44 to correspond to the sheet bending die 22. The sheet bending punch 52 cooperates with the recess 22 'of the sheet bending die 22 so that the ceiling plate 8 and the stacking plate 9 of the terminal 2 become the upstanding wall 7. Molded to be bent at an angle to the portion.

Next, a base punch 54 is installed in the punch pocket 46 of the upper retainer 44 so as to correspond to the base die 26. The tip of the base punch 54 has a width that can be seated in the recess 26 'of the base die 26. The base punch 54 cooperates with the recess 26 'of the base die 26 so that the upstanding wall 7 is bent at a predetermined angle at both ends of the base 6.

Interference preventing grooves 55 are formed on both side surfaces of the base punch 54. The interference preventing groove 55 overlaps the ceiling plate 8 provided at the front end of the upright wall 7 in the process of bending the upright wall 7 to be completely distinguished from the base 6. (9) serves to prevent the base punch 54 from interfering.

An upright wall punch 56 is installed in the punch pocket 46 of the upper retainer 44 corresponding to the upright wall die 30. The upright wall punch 56 provides a driving force for driving the bending cam 32 and is not in direct contact with the engaging portion 5 side of the terminal 2. The upright wall punch 56 has a driving inclined surface 58 corresponding to the interlocking inclined surface 36 of the bending cam 32. The driving inclined surface 58 is formed to face each other on the lower surface of the upright wall punch 56, the driving inclined surface 58 of both ends is farther toward the tip.

On the side of the upright wall punch 56, a bending punch 59 is installed so as not to interfere with the upright wall punch 56. Protruding portions 59 ′ protrude from both ends of the bending punch 59. The protruding portion 59 'is formed such that the ceiling plate 8 and the overlapping plate 9 of the terminal 2 are bent at a predetermined angle with respect to the upstanding wall 7 by hitting the tip end of the upstanding wall 7. do. The bending punch 59 does not come into contact with the upright wall punch 56 and moves independently.

Meanwhile, a first overlapping plate punch 60 is installed in the punch pocket 46 of the upper retainer 44 corresponding to the first overlapping plate die 38. The first overlap plate punch 60 is formed by the adjustment groove 62 is recessed, the recess groove 62 is formed by making a predetermined inclination from one side to the other side. On one side of the adjustment groove 62 corresponding to the stacking plate 9, lines are shifted at predetermined intervals, and ends 62 'are formed. The end 62 'is formed to be out of the trajectory of the stacking plate 9 and strikes the ceiling plate 8. The first lamination plate punch 60 bends the lamination plate 9 almost vertically with respect to the upstanding wall 7 so as to overlap the tip of the ceiling plate 8.

A second overlapping plate punch 64 is installed in the punch pocket 46 of the upper retainer 44 corresponding to the second overlapping plate die 39. The pressing groove 66 is recessed in the lower surface of the second overlapping plate punch 64. For reference, both ends of the second overlapping plate punch 64 protrude more than the height of the upstanding wall 7 with respect to the inner surface of the pressing groove 66. The second lamination plate punch 64 bends the lamination plate 9 vertically with respect to the upstanding wall 7 so as to overlap the ceiling plate 8.

On the other hand, an adjustment punch 64 'is provided in the punch pocket 46 of the upper retainer 44 corresponding to the adjustment die 39'. The adjustment punch 64 ′ has the same shape as the second overlapping plate punch 64. That is, the pressing groove 66 'is formed in the bottom surface of the adjusting punch 64'. The adjustment die 39 'serves to prevent the springback phenomenon by processing the overlap plate 9 one more time. However, the spring back phenomenon may not occur depending on the design conditions such as dimensions, so that the adjusting die 39 'and the adjusting punch 64' are not necessarily required.

Hereinafter, the operation (operation) of the terminal forming apparatus according to the present invention having the configuration as described above will be described in detail.

4 is an explanatory view sequentially showing that the coupling portion of the terminal is formed in the device according to the present invention, Figure 5 is a cross-sectional view sequentially showing the shape in which the coupling portion of the terminal is formed in the device according to the present invention is shown have.

First, referring to FIGS. 4 and 5, a process of forming the coupling part 5 of the terminal 2 will be described. The terminal 2 made as in the state of FIG. 1 is hit by the swaging punch 50 in a state seated on the swaging die 20 in order to remove and flatten the burrs generated during the cutting operation. In this case, the coupling part 5 of the said terminal 2 is processed flat, and the burr etc. which generate | occur | produced at the time of cutting | disconnection etc. disappear. This state is shown in FIGS. 4A and 5A.

Next, the ceiling plate 8 and the overlapping plate 9 are bent by a predetermined angle to the portion to be the upstanding wall 7 by the sheet bending die 22 and the sheet bending punch 52. The angle between the ceiling plate 8 and the overlapping plate 9 with respect to the upstanding wall 7 is determined by the angle of the inclined surface 24 of the sheet bending die 22. This state is shown in FIGS. 4B and 5B.

The upright wall 7 is bent at a predetermined angle with respect to the base 6 by the base die 26 and the base punch 54. The angle that the upstanding wall 7 makes with respect to the base 6 is determined by the angle of the inclined surface 28 of the base die 26. For reference, the interference preventing groove 55 in the base punch 54 serves to prevent the ceiling plate 8 and the overlap plate 9 from interfering with the base punch 55 as shown in FIG. 4C. Do it. A state in which work is performed by the base die 26 and the base punch 54 is shown in FIG. 4C, and a state in which the work is performed by the base die 26 and the base punch 54 is shown in FIG. 5C. .

Next, after bending the ceiling plate 8 to have a predetermined angle with respect to the upright wall 7, as described above, the upright walls 7 on both sides are orthogonal to the base 6. Bend. To this end, when the upright wall punch 56 is lowered by the upper holder 40, the interlocking inclined surface 36 of the bending cam 32 is guided to the driving inclined surface 58, and the bent cams of both sides ( 32 is moved to be adjacent to each other while overcoming the elastic force of the restoring member 34.

When the bending cam 32 rotates, the protrusion 59 'formed in the bending punch 59 strikes the tip of the upstanding wall 7 so that the ceiling plate 8 and the overlap plate 9 are formed. A predetermined angle is made with respect to the upstanding wall 7. The upright wall punch 56 and the bending punch 59 do not affect each other's movement.

In this case, the upstanding wall 7 which is bent at a predetermined angle with respect to the base 6 is bent so as to be perpendicular to the base 6. In addition, the angle between the ceiling plate 8 and the overlapping plate 9 with the upstanding wall 7 becomes small. At this time, the tip of the ceiling plate 8 is located at the upper end of the opposite upright wall 7. This state is shown in FIGS. 4D and 5D.

Next, in the first stacking plate die 38 and the first stacking plate punch 62, a bending operation is performed such that the ceiling plate 8 and the stacking plate 9 are substantially adjacent to each other. The bending operation is not performed so that the ceiling plate 8 and the overlap plate 9 are completely in contact with each other in this step, to perform the bending operation step by step so that the coupling part 5 does not have an error in manufacturing. For sake. This state is illustrated in FIGS. 4E and 5E.

In the second stacking plate die 39 and the second stacking plate punch 64, a bending operation is performed such that the ceiling plate 8 and the stacking plate 9 are perpendicular to the upstanding wall 7. The stacking plate 9 is seated on the top surface of the ceiling plate 8. This is performed by pressing the stacking plate 9 by the pressing groove 66 of the second stacking plate punch 64. This state is shown in FIGS. 4F and 5F.

The rights of the present invention are not limited to the embodiments described above, but are defined by what is stated in the claims, and those skilled in the art can make various modifications and adaptations within the scope of the rights described in the claims. It is self-evident.

As described in detail above, according to the terminal forming apparatus according to the present invention, the following effects can be expected.

In the present invention, it is possible to form a rectangular cylinder shape, in particular, the coupling portion formed by overlapping the overlap plate on the ceiling plate more accurately and firmly, thereby increasing the quality of the terminal.

Claims (6)

In the terminal forming apparatus for forming a terminal having an upright wall is formed perpendicularly to both ends of the base and the top plate and the overlap plate are provided at the ends of the upright wall, respectively, the terminal having a coupling portion overlapping the overlap plate on the ceiling plate, A lower mold holder provided with a lower mold retainer; An upper mold holder provided above the lower mold holder and being relatively lifted with respect to the lower mold holder and provided with an upper mold retainer; A swaging die and a swaging punch installed on the lower retainer and the upper retainer to process the coupling part flat; Plate bending dies and sheet bending punches installed on the lower retainer and the upper retainer to bend the ceiling plate and the overlapping plate at an inclined angle with respect to an upright wall; A base die and a base punch installed on the lower retainer and the upper retainer to bend the upright wall with respect to the base at a predetermined angle; An upright wall die and an upright wall punch installed on the lower retainer and the upper retainer to bend the upright wall with a bending cam perpendicularly to the base; A bending punch installed at a side of the upright wall punch and protruding from both ends of the upright wall punch to strike the front end of the upright wall to bend the ceiling plate and the overlapping plate at a predetermined angle with respect to the upright wall; A first stacking plate die and a first stacking plate punch installed on the lower retainer and the upper retainer to bend the ceiling plate and the stacking plate at a predetermined angle with respect to the upstanding wall; And a second stacking plate die and a second stacking plate punch installed on the lower retainer and the upper retainer to bend the stacking plate overlapping the upright wall. 2. The adjusting die according to claim 1, wherein the adjusting die is installed at positions corresponding to each other of the lower retainer and the upper retainer passing through the second stacking plate die and the second stacking plate punch, respectively, to bend the stacking plate against the upright wall. Terminal forming apparatus, characterized in that the adjustment punch is further provided. 2. The terminal forming apparatus according to claim 1, wherein the plate bending die is formed with a recess having a width equal to the width of the base and an upstanding wall, and the base die has a recess with a width equal to the width of the base. 4. The bending cam of claim 3, wherein both sides of the upright wall die are supported in a direction away from each other by a restoring member, and a bending cam having an interlocking inclined surface interlocked with a driving inclined surface of the upright wall punch is installed at the front end to enable a straight reciprocating motion. Terminal molding apparatus characterized in that. According to claim 4, The side wall of the upright punch is provided with a bending punch formed by protruding protrusions on both sides of the tip so as not to interfere with the upright wall punch, the bending punch hits the tip of the upright wall to the ceiling And a plate and an overlapping plate are formed to be bent at a predetermined angle with respect to the upstanding wall. The method of claim 5, wherein the first stacking plate punch is formed by recessed inclined from one side to the other side to correspond to the ceiling plate, one end of the adjustment groove so that the end is out of the trajectory of the stacking plate Terminal forming apparatus, characterized in that formed.

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