JP2007039174A - Workpiece feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a workpiece feeding device capable of feeding workpieces with cross section shapes changed along the longitudinal direction while preventing deformation and damage etc. and capable of being used for various purposes even if types of target workpieces are different. <P>SOLUTION: This workpiece feeding device is equipped with a first rotating body 10 having a rotation group 12 formed by laminating a plurality of thin plate-shaped rotating boards 2, a second rotating body having an integrally formed roller, and a motor driving the first rotating body 10. Each of the rotating boards 2 is formed by penetrating through a spiral hole part 4 around a first rotating shaft. Due to the elastic deformation, an arbitrary point on the outer peripheral edge of each of the rotating boards 2 can be displaced in the diametrical direction and circumferential direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a workpiece feeding device, and more particularly to a workpiece feeding device that feeds and feeds a workpiece by sandwiching the workpiece between a pair of rotating bodies and rotating the respective rotating bodies in the opposite directions.

  2. Description of the Related Art Conventionally, in various machine parts processing and attachment processes, etc., an apparatus is used in which a linear member, a long thin plate member, or the like is sandwiched between a pair of rotating bodies and fed out to the next process.

  For example, the present applicant has proposed a “wire material transport roller” for transporting a wire member in a process of attaching a crimp terminal to an electric wire (Patent Document 1). According to the present invention, each of the pair of rotating bodies is configured by laminating thin plates having elastic means for biasing the workpiece in the centrifugal direction, so that the outer peripheral shape of the electric wire is aligned at the contact point with the electric wire. Displaceable. As a result, the contact area with the electric wire can be increased and the electric wire can be securely clamped, and the electric wire can be transported without fear of being bent or being damaged by a soft covering material.

  However, many workpieces have not only a constant cross-sectional shape like a linear member, but also a cross-sectional shape that changes along the longitudinal direction. For example, in the step of attaching the crimp terminal to the electric wire, as shown in FIG. 6, a step in which a member in which a plurality of crimp terminals 100 are continuously connected in a band shape by the carrier portion 101 is fed from the reel and sent to the next step. There is. Here, each crimp terminal 100 includes a connector portion 104, a first crimp portion 102 that is crimped to a wire covering material, a second crimp portion 103 that is crimped to a core wire, a first crimp portion 102 and a second crimp portion 103. The first connection part 105 that connects the two and the second connection part 106 that connects the connector part 104 and the second crimping part 103 are formed. In the case of a workpiece having such a complicated shape, it cannot be conveyed by the above-mentioned “wire material conveying roller”. In view of this, the present applicant has proposed a “terminal transport device” that presses and transports a crimp terminal by means of a belt mechanism that rotates at a constant speed and a plate-shaped guide member that is biased toward the belt (Patent Document). 2). According to the present invention, the claw portion and the hole portion 107 which are required for the known conveying device to carry the claw portion supported so as to be slidable in the conveying direction by being hooked on the hole portion 107 of the carrier portion 101 are conveyed. High positional accuracy is not required. In addition, there is no problem of excess or deficiency in the conveyance distance due to the difference in size between the claw portion and the hole portion 107. In addition, the conveyance direction can be regulated and stabilized by the plate-shaped guide member. Further, since this guide member abuts on the groove-shaped first connection portion 105 and presses the belt side, no load is applied to the protruding portion of the crimp terminal 100, and the crimp terminal 100 may be deformed or damaged. Can be transported without any problem.

JP 2000-355462 A Japanese Patent Application No. 2004-355924

  However, the shape and size of the crimp terminal are extremely diverse. According to the above “terminal conveying device”, in general, the guide member is a belt in the first connection portion 105 that is often set within a certain dimensional range regardless of the size and manufacturer of the crimp terminal. Since it is configured to press the side, it is possible to cope with different types of crimp terminals within a certain range, but a device that can deal with a wide variety of crimp terminals has been desired.

  In addition, the target workpiece is not limited to the crimp terminal, and various long workpieces having various cross-sectional shapes, thicknesses, strengths, and soft materials can be widely used for general purposes. A workpiece feeder was desired.

  Therefore, in view of the above situation, the present invention can send a workpiece whose cross-sectional shape changes along the longitudinal direction without causing deformation, damage, etc. It is an object of the present invention to provide a work feeding device that can be used.

  In order to solve the above-described problem, the work feeding device according to the present invention is “a work feeding device that feeds and feeds a work between a pair of rotating bodies, and at least one of the pair of rotating bodies is a thin plate-like shape. The rotating plate is formed by laminating a plurality of rotating plates formed on each other, and each of the rotating plates can be displaced in the radial direction and the circumferential direction at any point on the outer peripheral edge due to its elastic deformation. '' It is configured as a feature.

  The rotating plate is formed into a circular thin plate shape by an elastic material such as metal, and is configured to be elastically deformable in the radial direction and the circumferential direction. Such a configuration can be realized by partially forming a through hole or a cut along the circumferential direction and the radial direction. For example, two or more concentric rings are bent in a zigzag shape and have a narrow width. And a circular plate formed by connecting a plurality of elongated holes radially from the vicinity of the rotation axis toward the outer peripheral edge. The ease of elastic deformation of such a rotating plate can be changed as appropriate depending on the way of providing cuts and through holes, selection of material, setting of thickness, and the like.

  Each rotating plate is configured to rotate in conjunction with the rotating shaft by drilling a hole in the center thereof and inserting the rotating shaft, or by fusing the rotating shaft. Then, a screw hole is provided in a portion close to the rotation axis of each rotary plate, and the rotary plate can be fastened by screwing or the like in a state where a plurality of rotary plates are stacked, thereby forming a rotation group. In addition, a rotating group can be configured by arranging holding plates having thicknesses at both ends so as to sandwich a plurality of rotating plates and screwing the rotating shaft and the holding plate.

  Therefore, according to the workpiece feeding device of the present invention, when each rotary plate contacts the workpiece at the outer peripheral edge, the contact point is displaced in the radial direction. Therefore, the force by which the pair of rotating bodies press the work does not directly act on the work. Thereby, even if it is a workpiece | work with small intensity | strength, there is no possibility that the protrusion part of a workpiece | work may be crushed, deform | transformed, or damaged, and it becomes possible to pinch. At this time, since each of the laminated rotating plates can be separately displaced, the rotating group contacts the workpiece so as to follow the sectional shape of the workpiece, regardless of the shape of the workpiece. Thereby, even if it is a workpiece | work which has a complicated shape, it becomes possible to pinch | interpose reliably with a pair of rotary body. In addition, since the plurality of rotating plates individually abut against the workpiece, the contact area with the workpiece increases, so that the workpiece can be reliably sandwiched and fed stably.

  Further, since each rotating plate can be elastically deformed in the circumferential direction, when the workpiece is inserted between a pair of rotating bodies, a portion that protrudes discontinuously along the feeding direction contacts the rotating plate. The impact when touching is alleviated. That is, when the rotating plate is displaced in the circumferential direction at the contact point with the workpiece, the displacement has a component in a direction that coincides with the feed direction of the workpiece, so that an impact at the time of contact is absorbed. Thereby, deformation | transformation, damage, etc. of the protrusion part of a workpiece | work when a workpiece | work is inserted in a workpiece feeder are prevented.

  Further, since each rotary plate can be elastically deformed in the circumferential direction, it is possible to prevent the distances at which the points on the same cross section of the workpiece move in the feed direction per unit time. That is, in the case of a workpiece having a complicated cross-sectional shape, for example, the degree of radial displacement differs between a rotating plate that is in contact with a protruding portion of the workpiece and a rotating plate that is in contact with a concave portion of the workpiece. Here, since these rotating plates rotate at the same angular velocity by the same rotating shaft, they contact the rotating plate having a shorter diameter (work protruding portion) and the rotating plate having a larger diameter. The length of the component in the feed direction is different from the portion (the concave portion of the workpiece) in the moving distance when the rotating plate rotates by a predetermined angle. Therefore, when the rotating plates are not displaced in the circumferential direction, the moving speed in the feeding direction is different at each point on the same cross section, and stress is applied to the workpiece. On the other hand, in the present invention, each rotating plate can be elastically deformed in the circumferential direction, so that the portion that is delayed in the feed direction comes into contact with the portion that moves slowly when pulled by the portion that moves fast. The rotating plate can be displaced in the circumferential direction, and movement in the feed direction is supplemented by the component in the feed direction of the displacement. As a result, the moving speed of any point on the same cross section of the workpiece in the feeding direction is not greatly different, and deformation or damage of the workpiece due to stress is prevented.

  Furthermore, when each rotating plate does not elastically deform in the circumferential direction, the force with which the pair of rotating bodies press the workpiece is distributed on one surface perpendicular to the feeding direction. On the other hand, in the present invention, since the respective rotating plates are slightly displaced in the circumferential direction and come into contact with the workpiece, the pressing force by the pair of rotating bodies is within a range having a certain width along the feeding direction. Will be distributed. Thereby, since the pressing force received by the work from the rotating body is dispersed, the work is hardly damaged by the sandwiching of the pair of rotating bodies.

  In addition, since the work is sent through a pair of rotating bodies, even when a crimp terminal is sent, the feeding direction is unstable as in a known device that conveys by engaging the claw part of the device with the hole of the work. It can be stably sent to the next process. Furthermore, the target workpiece is not limited, and it can be used for a wide variety of long workpieces having various cross-sectional shapes, thicknesses, strengths, and the like.

  Further, the workpiece feeding device according to the present invention is “a workpiece feeding device that feeds and feeds a workpiece by a pair of rotating bodies, and is formed in a thin plate shape, and any point on the outer peripheral edge is radially formed by its elastic deformation. And a rotating group in which a plurality of rotating plates that are displaceable in the circumferential direction are stacked, a first rotating body that is rotationally driven by driving means, and a roller that is integrally formed, and the first rotating body And a second rotating body that rotates following the rotation.

  One first rotating body of the pair of rotating bodies includes a rotating group in which a plurality of rotating plates are stacked. On the other hand, a 2nd rotary body has a roller integrally formed in the column shape, the shape of a tie, etc., and is comprised. This roller does not elastically deform in the radial direction or the circumferential direction when it comes into contact with the workpiece, unlike the rotating group of the first rotating body. In addition, the first rotating body having the rotation group is displaced along the shape of the workpiece when contacting the workpiece, and the contact area with the workpiece becomes large, and the resistance to rotation is large. It is rotationally driven by. On the other hand, since the integrally formed second rotating body has a smaller resistance to rotation than the first rotation, it is driven by the rotation of the first rotating body that is rotationally driven.

  Therefore, according to the workpiece feeding device of the present invention, there are many irregularities in a workpiece in which a side surface with many irregularities and a bottom surface that is nearly flat are opposed to each other like a crimp terminal connected in a band shape by a carrier portion. The side surface can be inserted into the work feeding device with the side surface close to the first rotating body and the side surface near the flat surface facing the second rotating body. Thus, even if the pair of rotating bodies does not have a rotating group, the workpiece can be efficiently fed while taking advantage of the present invention that flexibly corresponds to the shape of the workpiece and does not cause deformation or damage. Is possible.

  Further, the work feeding device according to the present invention can be "each of the rotating plates has a spiral hole portion formed so as to penetrate in a spiral shape around the rotation axis".

  Therefore, according to the workpiece feeding apparatus of the present invention, each rotary plate can be displaced in the radial direction and the circumferential direction with a simple shape that does not require complicated machining. In addition, since the ease of elastic deformation can be adjusted by changing the number of turns and the width of the spiral, it is possible to easily design for a desired setting. In addition, since the spiral hole portion is close to a concentric circle with the rotation axis as the center, the ease of elastic displacement at any point on the outer peripheral edge is substantially the same.

  In addition to the above-described configuration, the workpiece feeding device according to the present invention can be "each of the rotating plates has a plurality of convex portions formed on the outer peripheral edge".

  The shape of the convex portion is not particularly limited, and a trapezoidal shape and an involute tooth shape can be exemplified. However, a triangular shape with a sharp tip is not desirable because it may damage the work or may pierce the work and prevent smooth feeding.

  Therefore, according to the workpiece feeding device of the present invention, the convex portion is formed on the outer peripheral edge of each rotating plate, so that the friction at the contact point when the outer peripheral edge contacts the work increases. This prevents the workpiece from slipping and allows the workpiece to be sent reliably.

  As described above, as an effect of the present invention, at least one of the pair of rotating bodies is formed by laminating a thin plate-like rotating plate that can be elastically deformed in the radial direction and the circumferential direction. It is possible to send a workpiece whose shape changes along the longitudinal direction without causing deformation or damage. Moreover, it can be used universally for various long workpieces having different shapes and strengths, regardless of the type of workpiece.

  Hereinafter, a workpiece feeding apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5. In this embodiment, the case where the workpiece feeding device is used in a terminal crimping device for feeding a crimped terminal connected in a strip shape from a reel and feeding it to the next process is illustrated. Here, FIG. 1 is a perspective view showing the system configuration of the terminal crimping device, FIG. 2 is a perspective view of the workpiece feeding device of this embodiment, FIG. 3 is an exploded perspective view of the main part of the workpiece feeding device, and FIG. FIG. 5 is an explanatory view showing the operation of the work feeding device.

  As shown in FIG. 1, the terminal crimping apparatus A performs a series of operations of supplying the crimp terminal 100 (see FIG. 6), feeding the electric wire L, removing the covering material, crushing the crimp terminal 100, and cutting the electric wire L. The electric wire L having a predetermined length with the crimp terminal 100 crimped is continuously manufactured. As shown in FIG. 1, the terminal crimping apparatus A is placed on a table 72, and a first crimping mechanism 60 for crimping the crimp terminal 100 to the distal end side of the electric wire L, and a rear end side of the electric wire L A second crimping mechanism 70 for crimping the crimp terminal 100, a cutting mechanism 80 for cutting the electric wire L and removing the covering material at the end of the electric wire L, and feeding the distal end side of the electric wire L to the first crimping mechanism 60. An electric wire feeding mechanism 90, a chuck mechanism (not shown) for holding the cut electric wire L and feeding the rear end side of the electric wire L to the second crimping mechanism 70, and an electric wire L having crimp terminals 100 crimped at both ends to the outside The discharge device (not shown) for discharging and the workpiece feed of this embodiment that feeds the crimp terminal 100 from the crimp terminal reel 73 attached to the side surface of the table 72 and supplies the crimp terminal 100 to the first crimp mechanism 60 and the second crimp mechanism 70 side. With device 1 It is provided. The terminal crimping apparatus A of this example can be processed while feeding the electric wire L in a straight line without changing the direction of the electric wire L being processed.

  Since the first crimping mechanism 60 and the second crimping mechanism 70 have the same basic configuration, the first crimping mechanism 60 will be described below, and a detailed description of the second crimping mechanism 70 will be omitted. The first crimping mechanism 60 includes a frame member 62 to which an applicator 61 for crimping the crimp terminal 100 is attached. A cutout 64 is formed on a side surface of the frame member 62, and an applicator 61 is attached in the cutout 64. Specifically, an upper unit 62 of the applicator 61 is attached above the notch 64, and a lower unit 63 of the applicator 61 is attached below the notch 64. A first elevating mechanism and a second elevating mechanism (both not shown) for elevating and lowering the upper unit 62 and the lower unit 63 of the applicator 61 are provided.

  A pressing member and an anvil (not shown) are attached to the upper unit 62 and the lower unit 63 of the applicator 61. By bringing the upper unit 62 and the lower unit 63 closer to each other, the pressing member and the anvil are moved toward each other. The crimp terminal 100 located between them can be crushed.

  The lower unit 63 is provided with a terminal feeding mechanism 65 for feeding the crimp terminal 100 onto the anvil. The terminal feeding mechanism 65 sequentially supplies the crimp terminals 100 connected in series by the plate-like carrier part 101 one by one onto the anvil. Although not shown, the terminal feeding mechanism 65 is formed on the base member and the base member. The groove-shaped guide part that guides the carrier part 101, the deviation prevention mechanism that partially closes the opening of the guide part to prevent the carrier part 101 from deviating, and the crimping terminal 100 that engages the locking claw makes the carrier The conveyance mechanism which conveys the crimp terminal 100 connected by the part 101, the conveyance cylinder which slides a conveyance mechanism to a horizontal direction, and the stop mechanism for stopping the crimp terminal 100 on an anvil are comprised. .

  The cutting mechanism 80 is disposed between the first pressure-bonding mechanism 60 and the second pressure-bonding mechanism 70, and cuts the wire L or removes the covering material at the end of the wire L. A pair of cutting blades 81 disposed in the vertical direction for removal and a pair of cutting blades (not shown) disposed in the vertical direction for cutting the electric wire L are provided. The cutting blade 81 and the cutting blade can be opened and closed independently, and are opened and closed by an opening and closing means having a stepping motor.

  On the other hand, the electric wire feeding mechanism 90 includes an electric wire take-in guide 91, an encoder 92 that measures the length of the electric wire L, a pair of rollers 94 that are spaced apart by a predetermined distance, a guide pipe 95, and the like. The pair of rollers 94 can move so as to approach and separate from each other, and the rollers 94 are driven to rotate by roller driving means (not shown), and the rotation direction and the number of rotations are controlled, whereby the electric wires L Is sent for an arbitrary length, and feedback control by the encoder 92 is made possible. In addition, the guide pipe 95 is positioned by the guide pipe driving means (not shown) so that the tip of the guide pipe 95 is positioned in the vicinity of the applicator 61 and the cutting mechanism 80 so that the crimp terminal 100 is crimped, cut, and the covering material is removed. In this case, the electric wire L is prevented from shaking.

  In the terminal crimping apparatus A, a terminal guide mechanism 50 is arranged as desired by the applicator 61. The terminal guide mechanism 50 includes a guide roller 52 that guides the crimp terminal 100, a pair of steady plates 53 that suppress the shake of the crimp terminal 100 being conveyed, and a terminal presence sensor (not shown) that detects the presence or absence of the crimp terminal 100. Not), and a frame member 54 that supports the guide roller 52, the steady plate 53, and the like. The terminal guide mechanism 50 stably guides the crimp terminal 100 fed from the workpiece feeding device 1 to the applicator 61 and detects the presence or absence of the crimp terminal 100.

  Further, the terminal crimping apparatus A is provided with an operation unit 75 provided with a control means, and the terminal crimping apparatus A is controlled by inputting predetermined information in the operation unit 75. The operation unit 75 includes an input unit 76 for inputting various information for processing the electric wire L, and an output unit 77 for displaying input contents and the like, which are respectively connected to the control unit. The control means is composed of a central information processing device (CPU) and auxiliary storage devices such as RAM and ROM that assist it.

  As shown in FIG. 1, the workpiece feeding device 1 of the present embodiment is attached to the side surface of a table 72, and as shown in FIG. 2, the first rotating body 10, the second rotating body 20, and the motor 19 are arranged. Mainly configured. The first rotating body 10 includes a rotating group 12, a first rotating shaft 11, and a pair of holding plates 14 that hold the rotating group 12. The second rotating body 20 includes a roller 22, a second rotating shaft (not shown), and a stopper material 24.

  As shown in FIGS. 3 and 4, each rotary plate 2 is provided with a rotary shaft hole 5 through which the first rotary shaft 11 is inserted. The pair of holding plates 14 are metal discs that are considerably thicker than the rotating plate 2, and the rotating shaft holes 15 are formed in the same manner as the rotating plate 2. A rotating group 12 is formed by laminating the rotating plates 2, and a pair of holding plates 14 are arranged at both ends thereof, and the rotating shaft hole 15 of the holding plate 14 and the rotating shaft hole 5 of the rotating plate 2 are connected to each other. The first rotating body 10 is formed by being inserted through the one rotating shaft 11. At this time, screw receiving members 16 and 17 are arranged from both outer sides of the pair of holding plates 14, and screw portions (not shown) of the first rotating shaft 11 and screw grooves 16 a and 17 a of the screw receiving members 16 and 17 are screwed. In addition, the first rotating body 10 is interlocked with the rotation of the first rotating shaft 11 by tightening the rotating group 12 and the holding plate 14. That is, as the first rotating shaft 11 is rotationally driven by the motor 19 (see FIG. 2), the first rotating body 10 rotates. Here, the motor 19 corresponds to the driving means of the present invention. In the present embodiment, the rotating group 12 is configured by stacking 100 rotating plates 2.

  The rotating plate 2 is a thin disc made of metal, and has a diameter of 100 mm and a thickness of 0.3 mm in this embodiment. As shown in FIG. 4, each rotary plate 2 is formed with a spiral hole portion 4 in a spiral shape around the rotation shaft hole 5. As described above, by providing the spiral hole portion 4 having the radial component and the circumferential component, any point on the outer peripheral edge of each rotary plate 2 can be displaced in the radial direction and the circumferential direction. It becomes. In this embodiment, the width | variety of the spiral hole part 4 is 1 mm, the space | interval of a vortex is 2 mm, and the hole part is formed from the outer periphery to the position of 6 mm. Further, each rotating plate 2 is formed with a plurality of convex portions 7 along the outer peripheral edge. In the present embodiment, the convex portion 7 has a trapezoidal shape with a height of 0.5 mm, and about 400 pieces are arranged on the outer peripheral edge at the same interval.

  The second rotating body 20 (see FIG. 2) is formed by inserting a second rotating shaft through a cylindrical roller 22. Further, a stopper member 24 having a diameter larger than that of the roller is disposed on the front surface of the roller 22, and the roller 22 and the stopper member 24 are tightened by screwing a screw receiving member 26 and a screw portion (not shown) of the second rotating shaft. Thereby, it is set as the structure which the 2nd rotating shaft and the 2nd rotary body 20 interlock | cooperate. At that time, the stopper member 24 is positioned outside the holding plate 14 of the first rotating body 10 and the outer edge portions of both are arranged so as to partially overlap, so that the workpiece such as the crimp terminal 100 is moved to the first rotating body. It is prevented that it comes off between 10 and the 2nd rotary body 20. FIG. Further, the second rotating shaft is not rotationally driven, and the second rotating body 20 rotates following the rotation of the first rotating body 10.

  Next, the operation of the workpiece feeding device 1 according to the present embodiment will be described with reference to FIGS. First, the motor 19 is operated to rotate the first rotating body 10 in the arrow R direction. At this time, the second rotating body 20 is driven by the rotation of the first rotating body 10 by the frictional force of the contact surface between the rotating group 12 and the roller 22 and rotates in a direction opposite to the R direction. At that time, since a large number of small convex portions 7 are formed on the outer peripheral edge of the rotating group 12, the frictional force of the contact surface between the rotating group 12 and the roller 22 becomes larger, and the second rotating body 20 is the first rotating body 20. It becomes easy to follow the rotation of the rotating body 10. In this state, the crimp terminal 100 connected to the carrier unit 101 and wound around the crimp terminal reel 73 is inserted between the first rotary body 10 and the second rotary body 20 from the lower side of the work feeding device 1. . At this time, the side surface of the crimp terminal 100 on which the concave and convex portions such as the first crimp portion 102 and the second crimp portion 103 are formed is inserted on the first rotating body 10 side, and the bottom surface with less irregularities is inserted on the second rotating body 20 side. To do. Accordingly, the crimp terminal 100 is drawn between the first rotating body 10 and the second rotating body 20 as the first rotating body 10 rotates.

  At this time, when the portion drawn between the first rotating body 10 and the second rotating body 20 changes from the carrier portion 101 to the crimp terminal 100, the protruding portion of the crimp terminal 100 collides with the first rotor 10. However, since the swirl hole portion 4 is formed in the rotating plate 2 that abuts and can be elastically deformed in the circumferential direction, the impact received by the crimp terminal 100 due to the collision is reduced. This prevents the protrusions of the crimp terminal 100 (the first crimping part 102, the second crimping part 103, etc.) from being deformed or damaged during insertion into the workpiece feeding device 1.

  When the crimp terminal 100 is sandwiched between the first rotary body 10 and the second rotary body 20, the concavo-convex portion of the crimp terminal 100 comes into contact with the rotating group 12 of the first rotary body 10. The rotating plate 2 constituting the rotating group 12 has the spiral hole portion 4 and is displaced in the radial direction by contact with the crimp terminal 100. That is, the rotating plate 2 is elastically deformed so that the width of the spiral hole portion 4 on the contact side becomes narrow and the width of the spiral hole portion 4 on the opposite side becomes wide. Then, the contact points of the individual rotating plates 2 are separately displaced in this manner, so that the outer peripheral surface of the rotating group 12 constituted by the outer peripheral surfaces of the rotating plates 2 is a flat surface when not contacting the crimp terminal 100. As shown in FIG. 5, the shape changes from the shape to a shape along the uneven shape of the crimp terminal 100. Thus, since the contact area of the crimp terminal 100 and the 1st rotary body 10 becomes a large thing by being supported so that an uneven | corrugated shape may be followed by the several rotating plate 2, it is supported reliably. In particular, since a large number of convex portions 7 (see FIG. 4) are formed on the outer peripheral edge of each rotating plate 2, the friction coefficient is increased and the rotating plate 2 is supported more reliably. Further, in this state, the crimp terminal 100 is pressed toward the roller 22 by the elastically deformable rotating plate 2, and therefore the pressing force of the first rotating body 10 and the second rotating body 20 causes the crimp terminal 100 to Protruding portions such as the first crimping portion 102 and the second crimping portion 103 are crushed and prevented from being deformed or damaged.

  In addition, since it is the cylindrical roller 22 that contacts the crimp terminal 100 and the carrier part 101 on the second rotating body 20 side, it does not elastically deform in the radial direction or the circumferential direction unlike the rotating group 12. However, the second rotating body 20 is deformed into the protruding portion of the crimp terminal 100 by contacting the flat surface of the bottom surface and contacting the uneven surface with the rotating group 12 of the first rotating body 10. Can be sent without damage.

  As shown in FIG. 5, the crimp terminal 100 has a complicated cross-sectional shape. In such a case, for example, the degree of displacement in the radial direction differs between the rotating plate 2 a that is in contact with the protruding portion X of the crimp terminal 100 and the rotating plate 2 b that is in contact with the recess Y of the crimp terminal 100. The diameter of the rotating plate 2a is shorter than that of the rotating plate 2b. Here, since all the rotating plates 2 rotate at the same angular velocity by the rotation of the first rotating shaft 11, the rotation is performed between the portion X in contact with the rotating plate 2a and the portion Y in contact with the rotating plate 2b. The movement distance in the feeding direction when the plate 2 is rotated by a predetermined angle is larger in the portion Y. For this reason, the slow moving portion X is pulled by the portion Y to be advanced first, and stress is applied. However, since the rotary plate 2a can be displaced in the circumferential direction, the movement distance in the feed direction is supplemented by the distance of the feed direction component of the displacement. As a result, the movement distance per unit time in the feed direction of the portions X and Y is not much different, and deformation or damage of the crimp terminal 100 due to stress is prevented.

  Further, in this state, when the crimp terminal 100 is sent in the feed direction (the direction of the arrow F) with the rotation of the first rotary shaft 11 in the R direction, the crimp terminal 100 having an uneven shape becomes a flat plate shape. Since it is connected in a band shape by the carrier portion 101, the cross-sectional shape in the F direction always changes. For example, the cross-sectional shape does not change along the F direction in the portion that contacts the carrier portion 101 in the rotating group 12, but the cross-sectional shape always changes and changes significantly discontinuously in the portion that contacts the crimp terminal 100. There is also. However, since each rotary plate 2 is elastically deformed not only in the radial direction but also in the circumferential direction, it is possible to flexibly cope with such a change in the cross-sectional shape and to reliably feed in the F direction. Further, at that time, since the respective rotary plates 2 are displaced slightly in the circumferential direction and come into contact with the crimp terminal 100, the pressing force by the first rotary body 10 and the second rotary body 20 is along the F direction. It will be distributed within a range having a certain width. As a result, the pressing force received by the crimp terminal 100 is dispersed, making it difficult for damage such as deformation and damage.

  In the present embodiment, the second rotating body 20 is not driven to rotate, and only the first rotating body 10 is driven. If the pair of rotating bodies are forcibly rotated together, the rotation group 12 can also be displaced in the circumferential direction, so that the feeding speed of the work to be fed is the first rotating body 10 side and the second rotating body 20 side. And may be different. However, by driving one rotating body and following the other, it is possible to prevent the stress applied to the workpiece due to the difference in feed speed, and to prevent deformation and breakage of the workpiece.

  Here, not the second rotating body 20 but the first rotating body 10 is rotationally driven. This is because the elastic deformation of the rotating group 12 increases the contact area with the crimping terminal 100 and consequently the friction, and the first rotating body 10 having a large resistance to rotation is driven by the motor 19 and the second having a small resistance to rotation. The rotating body 20 is driven. In addition, since a large number of small convex portions 7 are formed on the outer peripheral edge of the rotating group 12, the friction with the surface of the roller 22 of the second rotating body 20 becomes large in a portion where the crimp terminal 100 or the like is not sandwiched. . As a result, the second rotating body 20 that is not rotationally driven can easily follow the rotation of the first rotating body 10.

  As described above, according to the workpiece feeding device 1 of the present embodiment, each rotary plate 2 can be displaced in the radial direction, so that the pressing force by the first rotary body 10 and the second rotary body 20 is The crimp terminal 100 is not directly applied, and deformation, damage, and the like are prevented. In addition, since the rotating group 12 abuts along the cross-sectional shape of the crimp terminal 100, the rotating group 12 is securely sandwiched and the contact area is large, so that the rotating group 12 is securely clamped and sent stably. In addition, the large number of convex portions 7 formed on the outer peripheral edge of the rotating plate 2 further increases the friction with the crimp terminal 100, thereby preventing slippage and feeding more reliably.

  Further, due to the elastic deformation of the rotating plate 2 in the circumferential direction, the impact of the collision between the protruding portion and the first rotating body 10 when the crimp terminal 100 is inserted into the work feeding device 1 is mitigated. Further, the feeding speed at each point on the same cross section of the crimp terminal 100 is prevented from being different. Furthermore, the pressing force by the first rotating body 10 and the second rotating body 20 is dispersed within a range having a certain width along the feeding direction. By these things, a deformation | transformation, damage, etc. of the crimp terminal 100 are prevented.

  Also, the crimp terminal 100 is inserted into the workpiece feeding device 1 with the uneven side surface of the crimp terminal 100 on the first rotating body 10 side and the nearly flat bottom surface on the second rotating body 20 side, and only the first rotating shaft 11 is rotationally driven. By doing so, it becomes possible to efficiently send the crimp terminal 100 or the like without losing the advantages of the present invention.

  In addition, since the configuration in which the rotating plate 2 can be elastically deformed in the radial direction and the circumferential direction is realized by forming the spiral hole portion 4, the rotating plate 2 can be manufactured without requiring complicated processing. This is advantageous in terms of manufacturing cost. Also, it becomes possible to easily design and change the ease of elastic deformation. In addition, since the ease of elastic displacement at any point on the outer peripheral edge is substantially the same, the workpiece feeding device 1 can be used regardless of the point of contact with the crimp terminal 100 or the like on the outer peripheral edge. The operation will not be different.

  The present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the above-described embodiments, and various improvements can be made without departing from the scope of the present invention as described below. And design changes are possible.

  For example, in the present embodiment, the work feeding device 1 is attached to the side surface of the table 72 of the terminal crimping device A, and the crimping terminal 100 is conveyed in the vertical direction. Or you may make it convey in the diagonal direction.

  Further, the diameter and thickness of the rotating plate 2, the width of the hole in the spiral hole portion 4, the number and interval of vortices are not limited to those shown in the present embodiment, and the shape and strength of the work to be sent, etc. Can be set as appropriate. For example, if the rotating plate 2 is made thin, it is easy to enter the concave portion of the workpiece surface and is more easily elastically deformed. Therefore, it is possible to deal with a workpiece having a more complicated shape and a low strength.

  Furthermore, in the present embodiment, only the first rotating body 10 includes the rotating group 12, and the second rotating body 20 is not elastically deformed. However, both the first rotating body 10 and the second rotating body 20 are used. It can also be set as the structure which has the rotation group 12. FIG. Thereby, even if it is a workpiece | work which has an uneven | corrugated | grooved part on both sides | surfaces, it becomes possible to send without giving a deformation | transformation, damage, etc. Moreover, the setting of the rotating plate to be configured may be changed between the rotating group of the first rotating body and the rotating group of the second rotating body, and the ease of elastic deformation may be different.

  Further, the object to be sent is not limited to the crimp terminal 100 as in the present embodiment, but is used for various long workpieces having various cross-sectional shapes, thicknesses, strengths, etc. can do.

It is a perspective view which shows the system configuration | structure of the terminal crimping apparatus to which the workpiece feeding apparatus of this invention is applied. It is a perspective view of a workpiece feeder. It is a disassembled perspective view of the principal part of a workpiece feeding apparatus. It is a front view of the principal part of a workpiece feeding apparatus. It is explanatory drawing which shows operation | movement of a workpiece feeding apparatus. It is a perspective view which shows the structure of a crimp terminal.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Work feeder 2 Rotating plate 4 Spiral hole part 7 Convex part 10 1st rotary body 11 1st rotating shaft (rotating shaft)
12 rotation group 19 motor (drive means)
20 Second Rotating Body 22 Roller 100 Crimp Terminal (Workpiece)

Claims (4)

A workpiece feeder that feeds and feeds a workpiece between a pair of rotating bodies,
At least one of the pair of rotating bodies includes a rotating group in which a plurality of rotating plates formed in a thin plate shape are stacked,
Each of the rotating plates can be displaced at an arbitrary point on the outer peripheral edge in the radial direction and the circumferential direction by elastic deformation thereof. A workpiece feeder that feeds and feeds a workpiece between a pair of rotating bodies,
A first plate which is formed in a thin plate shape and has a rotating group in which a plurality of rotating plates in which any point on the outer peripheral edge can be displaced in the radial direction and the circumferential direction by elastic deformation thereof and is rotationally driven by a driving means. A rotating body,
A work feeding device comprising a roller formed integrally and a second rotating body that rotates following the first rotating body. Each of the rotating plates is
The work feeding device according to claim 1, further comprising a spiral hole portion formed so as to penetrate in a spiral shape around the rotation axis. Each of the rotating plates is
The work feeding device according to claim 1, wherein a plurality of convex portions are formed on the outer peripheral edge.

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