KR101527397B1 - Stitching machine - Google Patents

Abstract

The present invention relates to a stitching machine comprising: a cutting punch part and a cutting die part for separating at least two terminal pins accommodated in a terminal pin accommodating part from the terminal pin accommodating part; a grip part for gripping the terminal pins; and an insert part for inserting the terminal pins gripped by the grip part into a connector terminal pin insertion hole. Moreover, a cutting punch cam for vertically moving a cutting punch slider, a grip cam for driving an upper gripper and a lower gripper so as to grip the terminal pin, an insert cam for moving the gripper that grips the terminal pin to the connector terminal pin insertion hole, and a cutting punch cam for vertically moving a cutting die slider are connected with a rotary shaft in order from the top. The present invention has effects of improving work efficiency due to convenient maintenance as the cutting punch part can be easily accessed by separating only a safety cover in mechanical wear, and stability of a worker as the cutting punch part and the cutting die part are installed outside by being supported by an upper plate and a lower plate.

Description

[0001] STITCHING MACHINE [0002]

The present invention relates to a stitching machine. More particularly, the present invention relates to a stitching machine, and more particularly, to a stitching machine for stitching a stitching machine for assembling a connector by automatically inserting the separated terminal pin into a terminal- Machine.

In general, stitching technology related to assembly and production of parts in an electronic component assembly facility has been actively researched and developed due to high density, miniaturization and diversification of parts.

These stitching techniques are largely classified into development of parts and development of techniques for assembling parts. The development of parts has been progressed with the trend of miniaturization and integration with the development of electronic field technology. The development of assembly technology is focused on the development of precision assembly equipment required for surface mounting of components and the development of operation technology of various assembly equipment .

A stitching machine representing assembly equipment is a device that inserts a terminal (terminal pin) into a mold structure and is the core equipment of connector assembly equipment. Such a stitching machine is a device for cutting and inserting various parts supplied in the form of a terminal (terminal pin) and a mold structure from a feeder such as a feeder or a sprocket.

Usually, the stitching machine has a working mechanism for cutting a terminal or the like through a cylinder which is repeatedly moved back and forth in the X-axis direction by a motion chart of the cam, and simultaneously inserts the same. In such a stitching machine, the feeding of the terminal is performed by the feeding sprocket, and the feeding is performed in such a manner that the feeding of the fitting sprocket causes the terminal to advance in the Y-axis direction at a predetermined pitch and enter the cutting and insert working area of the cylinder.

The "stitching machine" of Korean Patent Publication No. 10-1285215 includes a main body in which a rotating shaft is disposed, a first pin and a second pin which are rotatable at a terminal terminal and at least one of which is rotatable, A first cam portion that is coupled to the rotation shaft and that moves the insertion portion, a first link portion that connects the insertion portion and the first cam portion, a second link portion that connects the insertion portion and the first cam portion, A second cam portion which rotates at least one of the first pin and the second pin so as to open a pin, and which is provided with an open portion disposed in the main body, a second cam portion coupled to the rotation shaft and moving a part of the open portion, And a second link portion connecting the second cam portion.

However, in the prior art, when the link portion connected to a plurality of cams is worn out, it is difficult to maintain the main body by completely separating the main body itself, and the facility cost is increased due to the use of a motor having a large capacity in separating terminal pins from the terminal pin accommodating portion . In addition, when the pitch between the supplied terminal pins and the pitch between the terminal pin insertion holes formed in the connector to be assembled is not constant, the terminal pins can not be inserted one by one.

Korean Registered Patent No. 10-1285215 (July 31, 2013)

SUMMARY OF THE INVENTION The present invention has been devised to solve the above-mentioned problems, and it is an object of the present invention to provide a stitching machine which is easy to replace and maintain when a link is worn.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a stitching machine capable of cutting a terminal pin housed in a terminal pin feeding portion even with a small torque.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method of mounting a terminal pin in a terminal insertion groove formed in a connector, So that a plurality of terminal pins can be assembled at the same time.

According to an aspect of the present invention, there is provided a stitching machine including a cutting punch portion and a cutting die portion for separating at least two or more terminal pins received in a terminal pin receiving portion from a terminal pin receiving portion, A cutting punch cam for moving up and down the cutting punch slider sequentially from above on the rotary shaft, and a cutting punch cam for vertically moving the cutter punch slider to grip the terminal pin, And a cutting punch cam for vertically moving the insert cam and the cutting die slider, wherein the cutting punch portion is located on the upper plate, The cutting die part is located on the lower surface of the lower plate, and the cutting punch part and the cutting die part are provided with a grip And is separated into the insert portion and spatially, the upper plate and the lower plate is characterized in that the connection via the rotary shaft and the bearing, respectively.

delete

According to one embodiment of the present invention, the cutting punch portion includes a cutting punch cam which is connected to a rotating shaft and rotates in accordance with rotation of the rotating shaft, a horizontal moving portion that horizontally moves in the X axis direction in accordance with rotation of the cutting punch cam, And a cutting punch slider vertically moving in the Y-axis direction in accordance with the movement of the horizontal moving part by the punch link part, wherein the cutting punch link part is formed in a 'b' shape and rotates the horizontal movement of the horizontal moving part around the link shaft And the cutting punch slider is converted into a vertical motion.

According to the present invention, since the cutting punch portion and the cutting die portion are respectively supported on the upper plate and the lower plate to be installed outside, it is easy to separate and access the safety cover to the cutting punch portion in the stability of the operator and mechanical wear, The maintenance efficiency can be improved and the work efficiency can be improved.

In addition, it is convenient to replace each link portion of the cutting punch portion and the cutting die portion which is heavy in maintenance due to a large amount of maintenance because the cutting punch portion and the cutting die portion are spatially separated using the grip portion and the insert portion and the upper plate and the lower plate.

In addition, the cutting punch portion and the cutting die portion sequentially convert the rotary motion of each cam to the X-axis horizontal motion and the Y-axis vertical motion (the cutting punch and the cutting die are driven in the vertical direction) Since the terminal pin can be easily separated from the terminal, it is possible to use a motor having a small torque, thereby reducing the facility cost.

Further, even if the terminal pin pitch (supply pitch) stored in the terminal pin accommodating portion is different from the pitch between the connector terminal pin inserting holes (assembling pitch), the pitch can be adjusted by inserting the terminal pin by the pitch adjusting portion, It can be inserted into the pin insertion hole.

Therefore, it is possible to assemble the two terminal pins to the connector at the same time, thereby improving the working efficiency. Moreover, even if the supply pitch and the assembling pitch are different, it can be adjusted by the pitch adjusting section, Compatibility.

1A to 1C are a perspective view and a cross-section of a stitching machine according to an embodiment of the present invention.
2 is a view for explaining the operation of the cutting punch unit according to an embodiment of the present invention.
3 is a view for explaining the operation of the cutting die according to an embodiment of the present invention.
4 is a view illustrating a process of separating terminal pins according to an embodiment of the present invention.
5 is a view for explaining the operation of the grip unit according to the embodiment of the present invention.
6A to 6C are views for explaining the operation of the insert unit and the pitch adjusting unit according to an embodiment of the present invention.
7A and 7B are views for explaining the maintenance of the cutting punch portion according to an embodiment of the present invention.

The following detailed description is merely illustrative, and is merely an example of the present invention. Further, the principles and concepts of the present invention are provided for the purpose of being most useful and readily explaining.

Accordingly, it is not intended to provide a more detailed structure than is necessary for a basic understanding of the present invention, but it should be understood by those skilled in the art that various forms that can be practiced in the present invention are illustrated in the drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1A to 1C are a perspective view and a cross-section of a stitching machine according to an embodiment of the present invention.

1A and 1B, a stitching machine 1000 according to the present invention includes a cutting punch part 100 for separating at least two or more terminal pins stored in a terminal pin receiving part from a terminal pin receiving part, A cutting die unit 400, a grip unit 200 for holding terminal pins, and an insert unit 300 for inserting terminal pins held in the grip unit 200 into connector terminal pin insertion holes.

1B, the stitching machine 1000 includes a cutting punch cam 110 for vertically moving the cutting punch slider 140 from above on the rotary shaft 10, a top punch and a bottom punch for holding the terminal pin, An insert cam 310 for moving the gripper cam 210 to move the gripper holding the terminal pin to the connector terminal pin inserting hole, and a cutting punch cam 410 for moving the cutting die slider 440 up and down. One end of the rotary shaft 10 is connected to a pulley 60. The pulley 60 receives a rotational force from a pulley 50 connected to the motor by a connecting member such as a belt . The cutting punch cam 110, the grip cam 210, the insert cam 310 and the cutting punch cam 410 are rotated by the rotation of the rotary shaft 10 to be connected to the respective link portions, Or vertical motion, and at least two or more terminal pins can be separated from the terminal pin feeder 70 and inserted into the connector terminal pin insertion hole.

1C, the stitching machine 1000 forms a cutting punch 100 on the upper plate 20 with reference to the upper plate 20 and the lower plate 30, The cutting die unit 400 may be configured to be spatially separated from the grip unit 200 and the insert unit 300. In this case, the upper plate 20 and the rotary shaft 10 can be connected to each other through the upper bearing 21, and the lower plate 30 and the rotary shaft 10 can be connected to each other through the lower bearing. The stitching machine 1000 includes an insert part 300 and a cutting punch part 100 which are located at the center of the grip part 200 and the insert part 300 and are highly wear- It is possible to improve the efficiency of the maintenance work. That is, in the conventional stitching machine, the cams connected on the rotating shaft are installed together inside the main body, and the main body of the stitching machine has to be separated during the maintenance work due to the mechanical wear of the link portions connected to the cam. In addition, since a work space for repairing parts with mechanical wear is not secured, it is difficult to perform the work. However, since the upper plate 20 and the lower plate 30 of the present invention can easily access the outside of the cutting punch unit 100 and the cutting die unit 400 during maintenance, Can be improved. 7A and 7B, the safety cover 3 is installed on the cutting punch 100 located on the upper plate 20 to ensure the safety of the operator, and when mechanical wear and replacement are required, Maintenance work can be simplified by removing the safety cover (3). Since the cutting die unit 400 is also connected to the bottom surface of the lower plate 30 and installed outside, the maintenance work can be easily performed in the same manner as the cutting punch unit 100.

Hereinafter, the operation of the cutting punch portion 100, the grip portion 200, the insert portion 300, and the cutting die portion 400 of the stitching machine will be described.

FIG. 2 is a view for explaining the operation of the cutting punch unit according to an embodiment of the present invention, and FIG. 3 is a view for explaining the operation of the cutting die unit according to an embodiment of the present invention. The cutting punch portion 100 of the stitching machine 1000 may have a structure corresponding to that of the cutting die portion 400 and the following description of the cutting punch portion 100 will be replaced with a description of the cutting die portion 400 .

2, the cutting punch unit 100 includes a cutting punch cam 110 connected to the rotary shaft 10 and rotating in accordance with rotation of the rotary shaft, a cutting punch cam 110 driven in the X-axis direction by the rotation of the cutting punch cam 110, And a cutting punch slider 140 that moves vertically in the Y axis direction as the horizontal moving part moves by the cutting punch link part 130. [ The operation of the cutting punch portion 100 can be synchronized with the operation of the corresponding cutting die portion 400 to separate the terminal pins on the terminal pin supply region from the terminal pin accommodating portion.

Referring to FIG. 4, the terminal pin supply unit 70 includes a terminal pin (not shown) received in the terminal pin receiving portion 2, 1) is loaded into the terminal pin supply region by rotation of a sprocket or the like. The two terminal pins on the terminal pin feeding region are gripped by the clamps 331 and 332 and are synchronized with each other so that the cutting punch slider 140 moving in the vertical direction and the cutting die slider 440 come into contact with each other, Can be separated from the terminal pin receiving portion 2.

The horizontal moving part is located on the upper plate 20 and the horizontal moving block 121 can be connected on the LM guide 120. [ One side of the horizontal movement block 121 is inserted into the cam groove 122 and a guide roller 122 for transmitting a force in the X axis direction is positioned on the horizontal movement block 121, (131).

The cutting punch link unit 130 is located on the upper plate 20 and has a shape of 'b', one side 131 is connected to the horizontal movement block 121 and the other side 132 is connected to the cutting punch slider 140, Lt; / RTI > The cutting punch link unit 130 can rotate the horizontal movement of the horizontal movement block 121 about the link shaft 133 to convert the cutting punch slider 140 into vertical movement.

The stitching machine 1000 of the present invention transmits force by the principle of the lever around the link shafts 133 and 433 via the cutting punch link part 130 and the cutting die link part 430 having the ' . Therefore, it is possible to use a motor having a small torque at the time of separating the terminal pin by converting the horizontal motion caused by the rotation of the cam into the vertical motion, thereby reducing the facility cost.

5 is a view for explaining the operation of the grip unit according to the embodiment of the present invention.

As shown in FIG. 5, the grip portion 200 is for holding the terminal pin transferred to the terminal pin supply region, and can open and close the terminal pin by opening the ends of the upper pinch 332a and the lower pinch 332b. The grip part 200 includes a grip cam 210 connected to the center shaft 10 and rotating and connected to the second grip link 211 through the first grip link 211 and the second grip link 222 in accordance with rotation of the grip cam 210. [ The pressing roller 230 connected to the end of the grip link 222 may include a pressing plate 230 for reciprocating the upper surface on which the protruding surface is formed. The first grip link 211 and the second grip link 222 may have a mechanical structure for converting the rotational motion of the grip cam into the reciprocating motion of the pushing roller 223. [

The lower portion of the push plate 230 may be connected to the body portion of the forceps, and the upper surface may be formed with a part of the projecting surface. When the pushing roller 223 passes the protruding surface of the push plate 230, the upper end of the clamping force is pressed down to push the clamping end, and when the pushing roller 223 passes the plane other than the protruding surface, The tip of the pliers can be closed. The method of opening both ends of the clamp to hold the terminal pin can be performed by not only the above embodiment, but also various known methods.

6A to 6C are views for explaining the operation of the insert unit and the pitch adjusting unit according to an embodiment of the present invention.

6A, the insert unit 300 includes an insert cam 310 connected to the center shaft 10 and rotated, a guide roller 311 moving along the cam groove formed in the insert cam 310, an LM guide The first clamp 331 and the second clamp 332 may be connected to the guide roller 311 at one side and the insert block 321 at the upper side.

The insert unit 300 includes a first tongue 331 and a second tongue 332 holding the terminal pins separated by horizontally moving the insert block 321 on the LM guide 320 according to the rotation of the insert cam 310. [ 332 in the direction of the connector 90 to insert the terminal pins into the connector terminal pin insertion holes. 4, the distance between the grippers can be initialized corresponding to the supply pitch in accordance with the interval (hereinafter referred to as 'supply pitch') between the terminal pins 1 accommodated in the terminal pin receiving portion 2. On the other hand, when the interval between the supply pitch and the connector terminal insertion hole (hereinafter, referred to as 'assembly pitch') is different, the pitch of the terminal pin inserted into the connector terminal insertion hole by the operation of the insert portion, The terminal pins can be accurately inserted into the connector terminal pin insertion holes by adjusting the assembly pitch.

Hereinafter, a pitch adjusting unit for adjusting the supply pitch to the assembly pitch when the two terminal pins are simultaneously inserted into the connector terminal pin insertion hole when the supply pitch and the assembly pitch are different will be described.

6B and 6C, the pitch adjusting unit 500 sets the moving distance of the second grip 332 in the direction of the first grip 331 according to the difference between the assembling pitch P2 and the feeding pitch P1 And a pitch adjusting slider 512 for moving the second grip 332 by a pitch setting value set by the pitch setting unit.

The pitch setting unit includes a fixed block 543 fixed on the lower plate 20 and a pitch setting block 542 movable within the fixed block 543, A pitch adjustment guide roller 541 moving along one side face 512a of the pitch adjustment slider 512 is connected and the other side adjusts the protrusion length of the pitch setting buzzer 542 by a pitch setting value to be set, And a pitch adjusting screw 544 that can be rotated. Further, a fixing pin may be inserted into the fixing hole 545 formed in the fixing block 543 and the pitch setting block 542 to fix the pitch and fix it.

As the insert block 321 moves in the direction of the connector in accordance with the rotation of the insert cam 310, the pitch adjuster 500 contacts one end face 512a of the pitch adjusting slider 512 with the pitch adjusting guide roller 541 The pitch adjusting slider 512 may move the second tongue 332 toward the first tongue 331 to adjust the feeding pitch P1 to the assembly pitch P2. One end surface 512a of the pitch adjusting slider 512 may be formed with an inclination to move the pitch adjusting slider 512 toward the first tongue 331 by contact with the pitch adjusting guide roller 541 have.

Meanwhile, the insert block 321 moves in the direction of the insert cam 310 in accordance with the continuous rotation of the insert cam 310 and can be initialized to the initial supply pitch state. In this case, the pitch adjusting slider 512 is moved in the second clamping direction by the restoring force of the elastic body 513 provided inside, and at the same time, the elastic body 350 connecting the first clamping member 331 and the second clamping member 331 Lt; / RTI > is initialized to the feed pitch.

Therefore, the stitching machine having the pitch adjusting part of the present invention can simultaneously assemble the two terminal pins into the connector, so that the working efficiency is improved, and even if the supply pitch and the assembling pitch are different, it can be adjusted by the pitch adjusting part, Regardless of the pitch difference between the pitches.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, I will understand.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the appended claims.

1: Terminal pin (terminal) 2: Terminal pin receiving part
3: Safety cover 10:
20: upper plate 21: upper bearing
30: lower plate 31: lower bearing
50: motor pulley 60: rotating shaft pulley
70: Terminal pin feed 90: Connector
100: Cutting punch part 110: Cutting punch cam
111: Cam groove 120: LM guide
121: Horizontal moving block 122: Guide roller
130: Cutting punch link part 133: Link shaft
140: Cutting punch slider 150: Cutting punch guide
200: grip part 210: grip cam
211: first grip link 222: second grip link
223: pressing roller 300: insert part
310: insert cam 312: guide roller
321: Insert block 331, 332, 332a, 332b:
350: Elastic body 400: Cutting die part
410: Cutting punch cam 420: LM guide
421: Horizontal moving block 422: Guide roller
430: Cutting die link portion 440: Cutting die slider
500: pitch adjusting section 511: guide block
512: pitch adjustment slide 513: elastic body
520: LM Guide 541: Pitch adjustment guide roller
542: pitch setting block 543: fixed block
544: Pitch adjusting screw 545: Fixing hole
1000: Stitching machine

Claims (3)

A cutting punch portion and a cutting die portion for separating at least two or more terminal pins accommodated in the terminal pin accommodating portion from the terminal pin accommodating portion,
A grip portion for holding the terminal pins and
And an insert portion for inserting the terminal pins held in the grip portion into the connector terminal pin insertion hole,
A cutting punch cam for vertically moving the cutting punch slider from the top to the rotary shaft in sequence; a grip cam for driving the upper clamp and the lower clamp to hold the terminal pin; an insert cam for moving the clamp holding the terminal pin to the connector terminal pin insertion hole; A cutting punch cam for vertically moving the cutting die slider is connected,
Wherein the cutting punch portion and the cutting die portion are spatially separated from the grip portion and the insert portion, and the cutting punch portion and the cutting die portion are spatially separated from the grip portion and the insert portion,
Wherein the upper plate and the lower plate are connected to each other through a bearing and a rotary shaft.
delete The method according to claim 1,
The cutting punch portion
A cutting punch cam connected to the rotating shaft and rotating in accordance with the rotation of the rotating shaft, a horizontal moving part moving horizontally in the X axis direction according to the rotation of the cutting punch cam, And a cutting punch slider that vertically moves to a predetermined position,
Wherein the cutting punch link portion is formed in an 'a' shape, and rotates the horizontal movement of the horizontal movement portion about the link axis to convert the cutting punch slider into vertical movement.

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