JP5722088B2 - Cable assembly apparatus and cable assembly method - Google Patents

Description

  The present invention relates to a cable assembling apparatus and a cable assembling method for crimping and connecting terminals sequentially formed from a metal plate by a press machine to a core wire such as a coaxial cable for automobiles.

  Conventionally, various structures have been proposed for connecting terminals to coaxial cables including signal lines for automobiles.

  For example, in Patent Document 1, an inner terminal is crimped to a core wire of a coaxial cable, an insulating resin (dielectric material) is formed on the outer side of the inner terminal, and an outer terminal is installed on the outer side of the insulating resin, whereby the conductivity of the coaxial cable is increased. It is described that it is crimped to the braid.

  The inner terminal is a cylindrical female terminal, and a mating pin-shaped male terminal is inserted and connected from the tip of the inner terminal. The inner terminal and the outer terminal are insulated by an intermediate insulating resin. The inner terminal is made to adhere the insulating resin while being connected to the carrier (chain band) of the horizontal chain terminal (at the same time as the carrier is separated).

JP 2009-224033

  However, in the above conventional coaxial cable connection structure, it is difficult to perform high-precision caulking such as round crimping in order to crimp the core wire of the coaxial cable with the inner terminal disconnected from the carrier. Also, there is a problem that a lot of equipment costs are required for the terminal forming press and its press mold and the wire crimping machine and its caulking mold, and the molding of insulating resin on the terminal is troublesome. There was a problem that.

  In view of the above points, the present invention enables high-precision caulking such as round crimping, and the press machine and its press mold are different from the crimping machine and its caulking mold. It is an object of the present invention to provide a cable assembling apparatus and a cable assembling method that can eliminate the increase in equipment cost and can efficiently form an insulating resin on a terminal.

  In order to achieve the above object, a cable assembling apparatus according to claim 1 of the present invention forms a terminal from a metal plate through a plurality of steps and parallels a plurality of types of pieces for crimping an electric wire to the terminal. A press machine having a lower press die arranged in a plurality of pieces, and a plurality of parallel presses having a metal plate guide portion at a tip portion entering between the plurality of types of piece molds in the lower press die An electric wire holding jig, and a feeder that raises the electric wire holding jig together with the metal plate to be higher than the piece shape of the lower press die, and advances and descends toward the adjacent next piece shape It is characterized by providing.

  With the above configuration, the metal plate that is the base material of the terminal is sent to the piece shape of each process step by step by the forward movement of the wire holding jig, and the terminal is formed sequentially from the metal plate in each piece shape. The terminal is crimped and connected to the metal plate after the crimping. The tip of the wire holding jig gets over the frame shape by the raising and lowering operation of the wire holding jig. The tip of the wire holding jig supports the metal plate, and the metal plate guide portion always guides the metal plate.

  According to a second aspect of the present invention, there is provided the cable assembling apparatus according to the first aspect, further comprising an electric wire chuck that supplies the electric wire to the electric wire holding jig in the middle piece shape of the plurality of types of piece shapes. It is characterized by.

  With the above configuration, the metal plate is stamped and formed into a flat terminal from the first piece shape to the intermediate piece shape, and is formed into a substantially semi-cylindrical terminal that is slightly curved from the flat shape. An electric wire is supplied to the shaped terminal by an electric wire chuck, and the core portion of the electric wire is inserted and set from above. Between the intermediate piece shape and the last piece shape, the core wire portion is crimped to the terminal, and the terminal is formed into a cylindrical shape.

  The cable assembly device according to claim 3 is the cable assembly device according to claim 1 or 2, wherein the feeder includes a fixed frame and a movable plate each having a positioning portion for the wire holding jig, and the movable plate. Can move up and down with respect to the fixed frame.

  With the above configuration, the electric wire holding jig is supported by the movable plate and moved up and advanced in the direction of the frame shape, and the movable plate descends lower than the fixed frame at the position of the frame shape in the next process. It is supported by a fixed frame, and in this state, a metal plate is pressed by a piece shape. The fixed frame does not move, and the movable plate moves backward in the lowered state and returns to the original position.

  The cable assembly device according to claim 4 is the cable assembly device according to any one of claims 1 to 3, wherein the lower press die 14 has a metal plate positioning portion, and the metal plate positioning portion is The metal plate 7 is separated from the metal plate when the metal plate 7 is raised, and is engaged with the metal plate when the metal plate is advanced and lowered.

  With the above configuration, the metal plate is accurately positioned without play at the positioning portion of the press die when the metal plate is processed by the piece mold. Thereby, processing of a metal plate, ie, formation of a terminal, and crimping | compression-bonding of the electric wire to a terminal are performed correctly.

  The cable assembly device according to claim 5 is the cable assembly device according to any one of claims 1 to 4, further comprising a resin molding machine that attaches an insulating resin material to the terminal to which the electric wire is crimped, and the terminal with the terminal. The electric wire is supplied to the resin molding machine while being held by the electric wire holding jig.

  With the above configuration, with the electric wire held by the electric wire holding jig being crimped to the terminal, the whole electric wire holding jig is quickly conveyed to the resin molding machine in the next process, and the insulating resin material is adhered and molded to the terminal. The

  In the cable assembling method according to claim 6, each electric wire holding jig is arranged between a plurality of parallel pieces of the press die on the lower side of the press machine, and the metal plate is arranged along the plurality of kinds of pieces. The metal plate is positioned by the metal plate positioning portion of the lower press mold, and the metal plate is pressed with the piece mold while being guided and supported by the wire holding jig, The wire holding jig is integrally raised with the metal plate to be higher than the piece shape, and is advanced and lowered by one pitch, and the metal plate is positioned in the adjacent next piece shape and pressed. Repeatedly, a terminal is formed from the metal plate with the plurality of types of pieces, and an electric wire is crimped to the terminal.

  With the above configuration, the metal plate that is the base material of the terminal is sent to the piece shape of each process step by step by the forward movement of the wire holding jig, and the terminal is formed sequentially from the metal plate in each piece shape. The terminal is crimped and connected to the metal plate after the crimping. The tip of the wire holding jig gets over the frame shape by the raising and lowering operation of the wire holding jig. The tip of the wire holding jig supports the metal plate, and the guide portion always guides the metal plate.

A cable assembling method according to claim 7 is the cable assembling method according to claim 6, wherein the electric wire crimped to the terminal is sent to an adjacent resin molding machine integrally with the electric wire holding jig, and an insulating resin is supplied to the terminal. It is characterized by adhering a material.

  With the above configuration, with the electric wire held by the electric wire holding jig being crimped to the terminal, the whole electric wire holding jig is quickly conveyed to the resin molding machine in the next process, and the insulating resin material is adhered and molded to the terminal. The

  According to the first aspect of the present invention, the terminal can be accurately formed into a round shape (cylindrical shape) by sequentially pressing the metal plate with a plurality of types of pieces, and the wire is formed following the round forming. The terminal can be securely connected by high-precision caulking such as round crimping. In addition, by sequentially forming the terminals on the flat surface of the metal plate and crimping the electric wires to the terminals on the same plane, it is possible to manufacture the electric wires with the terminals without the need to wind the terminals one by one or to carry them by reel winding. The cost can be kept low and the manufacturing space can be kept small. Moreover, since the press mold for forming the terminal and the crimping mold for connecting the wires are used in the same device, the increase in equipment costs due to the fact that they are separate is prevented, and the production of the electric wires with terminals is efficient. Good and can be done at low cost.

  According to the second aspect of the present invention, the electric wire chuck can easily supply the electric wire to an intermediate piece shape among the plural types of piece shapes, and the core portion of the electric wire can be securely attached to the half-open terminal in the manufacturing process. Can be inserted and set.

  According to invention of Claim 3, an electric wire holding jig can be smoothly moved in order of a terminal processing process by the motion of a raise, advancing, descending, and retreating of a movable plate. In addition, the wire holding jig can be stably supported by the fixed frame.

  According to the fourth aspect of the present invention, the metal plate can be accurately positioned without play at the positioning portion of the press die, and the formation of the terminal from the metal plate by each piece mold and the crimping of the electric wire to the terminal, Can be performed with high accuracy.

  According to the fifth aspect of the present invention, the electric wire with the terminal crimped can be quickly positioned together with the electric wire holding jig to the resin molding machine, thereby accurately positioning the insulating resin on the terminal. be able to.

  According to the sixth aspect of the present invention, the metal plate is sequentially pressed with a plurality of types of pieces, so that the terminal can be accurately formed into a round shape (tubular shape). The terminal can be securely connected by high-precision caulking such as round crimping. In addition, by sequentially forming the terminals on the flat surface of the metal plate and crimping the electric wires to the terminals on the same plane, it is possible to manufacture the electric wires with the terminals without the need to wind the terminals one by one or to carry them by reel winding. The cost can be kept low and the manufacturing space can be kept small. Moreover, since the press mold for forming the terminal and the crimping mold for connecting the wires are used in the same device, the increase in equipment costs due to the fact that they are separate is prevented, and the production of the electric wires with terminals is efficient. Good and can be done at low cost.

  According to the seventh aspect of the present invention, the electric wire with the terminal crimped can be quickly positioned together with the electric wire holding jig to the resin molding machine, and can be accurately positioned, and the insulating resin is molded into the terminal with high accuracy. be able to.

1 is an overall layout diagram showing an embodiment of a cable assembling apparatus according to the present invention. It is a perspective view which shows one Embodiment of the press and feeder of a cable assembly apparatus, and the cable assembly method using them. It is a perspective view which shows the state which forms a terminal from a metal plate with a press machine, and crimps | bonds to an electric wire. 3A is a cross-sectional view taken along line AA in FIG. 3, FIG. 3B is a cross-sectional view taken along line BB in FIG. 3, FIG. 3C is a cross-sectional view taken along line CC in FIG. FIG. It is a perspective view which shows the initial position state of the electric wire clamp in a press. It is a perspective view which similarly shows the raising position state of an electric wire clamp. It is a perspective view which similarly shows the advance (lateral movement) position state of an electric wire clamp. It is a perspective view which shows the feed mechanism and positioning structure of the electric wire clamp in a feeder. It is a perspective view which shows one form of the resin molding machine of a cable assembly apparatus, and the cable assembly method using the same.

  1 to 9 show an embodiment of a cable assembling apparatus and a cable assembling method according to the present invention.

  As shown in FIG. 1, the cable assembling apparatus 1 includes an electric wire feeder 2, a terminal press machine 3, and a resin molding machine 4 arranged on a single support base 5. Each machine 2-4 is operated by one operation. A centralized operation is performed on the screen 6. A horizontally long conductive metal plate 7 which is a base material of a terminal is supplied to the press machine 3 from the left end. A molding machine 4 is disposed on the right side of the press machine 3, and a feeder 2 is disposed on the front side of the press machine 3 and the molding machine 4.

  The electric wire (coaxial cable) 8 is held, for example, by a clip (not shown) in a state of being folded in a U shape, and the terminal 8a is sent from the feeder 2 to the press machine 3 by the chuck 13 (FIG. 2) as indicated by an arrow a. Then, it is crimped to the terminal 10 (FIG. 3) in a state of being placed on an electric wire clamp (electric wire holding member or electric wire holding jig) 9 (FIG. 2), which will be described later, and then the electric wire 11 with terminal (FIG. 3) is connected to the electric wire clamp 9. Are sent from the press machine 3 to the molding machine 4 as shown by the arrow b, and the molding machine 4 forms the insulating resin 12 (FIG. 9) on the outside of the terminal 10 (FIG. 3). The wire clamp 9 is delivered to the feeder 2 as a processed product.

  3 and 4 is a coaxial cable, and includes an insulating endothelium 8c that covers the core wire 8b, a braid 8d that covers the insulating endothelium 8c, and an insulating sheath 8e that covers the braid 8d. The core wire 8b and the braid 8d are stripped (exposed) in advance, and the braid 8d is folded back on the insulating outer skin 8e. Note that the number and shape of the frame shapes 15 in FIG. 2 are appropriately changed according to the type of the terminal 10 and do not necessarily correspond completely to FIG.

As shown in FIG. 2, the front end portion (rear end portion) 9a of the wire clamp 9 on the feeder 2 enters the front portion of the press die 14 on the lower side of the press machine 3 (FIG. 1) (wraps horizontally). And) between each piece 15. Spaces 42 into which the wire clamps 9 are respectively inserted are formed between the other pieces 15 ₂ to 15 ₁₃ except the first piece 15 ₁ . The wire clamp 9 is inserted between the second and third piece molds 15 ₂ and 15 ₃ from the right by a chuck (not shown). In FIG. 2, reference numeral 3 ′ denotes a press die composed of a lower press die 14 and an upper press die (not shown).

Each wire clamp 9 is moved one pitch at a time in the up-down and left-right directions in the feeder 2 as will be described later, gets over the piece 15 and moves to the next (next process) piece 15 to the metal plate 7 (FIG. 3) and the wire 8 Transport. The electric wire clamp 9 that does not carry the electric wire 8 between the block molds 15 ₁ to 15 ₈ feeds the metal plate 7 (FIG. 3) together with the electric wire clamp 9 that carries the electric wire 8 between the frame types 15 ₉ to 15 ₁₃ . . In FIG. 2, the feeding direction of the metal plate 7 and the electric wire 8 is indicated by reference numeral 30.

  At that time, displacement (lifting) of each wire clamp 9 is prevented by pressing the upper metal pressing plate 24. The holding plate 24 is moved by a moving means (not shown) such as a cylinder horizontally in the horizontal direction up to the upper side of each electric wire clamp 9, and is lowered by the moving means such as a vertical cylinder and is moved up and down integrally with each electric wire clamp 9.

Figure (finished resin molding will be described later) of the color between the two right second and third frames type 15 _2, 15 ₃ wire clamp 9 is supplied, in the frame type 15 ₉ round molding as described above An electric wire 8 is supplied to the electric wire clamp 9. 2, illustration of the metal plate 7 and the terminal 10 is omitted, and the metal plate 7 and the terminal 10 of FIG. 3 are arranged on each piece type 15 of FIG. A strip-shaped metal plate 7 is supplied onto each piece 15 along the horizontal groove 25a of the rightmost guide block 25 in FIG.

  The electric wire clamps 9 are arranged in parallel at an equal pitch in the electric wire feeding direction, that is, the arrangement direction of the piece molds 15. The wire clamp 9 is made of metal as a material and is composed of a right half portion 9b and a left half portion 9c in FIG. 2, and the right half portion 9b is located at the top of the front end of the front side (base side) of the metal plate 7 (FIG. 3). It has a positioning pin (metal plate positioning portion) 17 that enters and engages with the hole portion 16, and the left half portion 9c is located on the front half side of the right half portion 9b, and is one of the longitudinal groove portions 9d for inserting the electric wire. An inverted U-shaped spring piece 9e for fixing the electric wire is provided on the side.

  The electric wire 8 is horizontally pushed into the groove 9d while being held by the pair of left and right electric wire chucks 13, and is held between the spring pieces 9e. The electric wire chuck 13 can be moved up and down, front and rear, and left and right by moving means (not shown) such as a rail in the XY direction, a ball screw shaft, a cylinder and a motor.

  5 to 7 show movements of the electric wire clamps 9 in the press machine 3 in the vertical and horizontal directions.

  As shown in FIG. 5, each metal plate 7 is processed by each piece mold 15 for each parallel wire clamp 9, and each wire clamp 9 rises as indicated by an arrow together with the metal plate 7 and the wire 8 as shown in FIG. 6. As shown in FIG. 7, each wire clamp 9 moves to the right side of the pitch (left side in FIG. 2) as indicated by the arrow 30 together with the metal plate 7 and the wire 8 as shown in FIG. In this state, each wire clamp 9 is lowered together with the metal plate 7 and the wire 8, and the metal plate 7 is pressed one step ahead of FIG. . In FIG. 5, the metal plate 7 is gripped by a chuck (not shown) in synchronization with the electric wire clamps 9 on the left end guide block 25 side, and is fed one pitch at a time by a horizontal cylinder or the like.

  In FIG. 5, reference numeral 31 denotes a base block on which the mold 14 is placed. A protruding wall 34 that is one step lower is provided at the front end of the mold 14, and a positioning component (not shown) is provided on the protruding wall 34 to enter and engage the distal end side portion 9 a of the left half portion 9 b of the wire clamp 9.

  As shown in FIG. 8, the feeder 2 includes a front and rear fixed frame 33 and an intermediate movable plate 34, and each of the fixed frame 33 and the movable plate 34 has a positioning pin (positioning portion) 35 for each electric wire clamp 9. The movable plate 34 is moved up and down by first driving means (not shown) such as a vertical cylinder, and is moved forward and backward by one pitch in the left-right direction by second driving means (not shown) such as a vertical cylinder. Each electric wire clamp 9 is supported on the upper surface of the movable plate 34 and moves integrally with the movable plate 34.

  That is, the movable plate 34 rises higher than the fixed frame 33 to move each electric wire clamp 9 by one pitch in the electric wire feeding direction (right direction in FIG. 8, the direction of the arrow 30), and the movable plate 34 is higher than the fixed frame 33. While lowering and supporting each electric wire clamp 9 on the fixed frame 33, only the movable plate 34 moves backward by one pitch in the left direction (the direction opposite to the arrow 30) in FIG. 8 and returns to the original position.

  When the electric wire clamps 9 in FIG. 5 are lowered (when the movable plate 34 is lowered), the positioning pins 35 of the fixed frame 33 and the movable plate 34 enter and engage with positioning holes (not shown) on the bottom side of the electric wire clamps 9. When the electric wire clamps 9 of FIG. 6 are raised (when the movable plate 34 is raised), the positioning pins 35 of the fixed frame 33 are detached from the positioning holes of the electric wire clamps 9.

  As shown in FIG. 8, a positioning pin (metal plate positioning portion) 36 that enters and engages with a circular hole (positioning hole) 16 ′ on the rear side of the metal plate 7 between the piece dies 15 in the lower press die. Are vertically arranged at equal pitches. A guide pin 17 at the upper end of the wire clamp 9 enters and engages with a circular hole (guide hole) 16 on the front side of the metal plate 7. The guide pin 17 is loosely engaged with the guide hole 16 with a gap, and the positioning pin 36 is engaged with the circular hole (positioning hole) 16 'by an appropriate fit. The metal plate 7 is accurately positioned by the positioning pins 36 without shaking.

  The positioning pin 17 of the wire clamp 9 is always engaged with the positioning hole 16 of the metal plate 7, and the positioning pin 36 of the lower press die 14 is moved to the metal plate 7 when the metal plate 7 is raised integrally with the wire clamp 9. 7, when the metal plate 7 advances and descends integrally with the wire clamp 9, it enters and engages with the adjacent positioning hole 16 ′ of the metal plate 7. The positioning pin 36 of the lower press die 14 passes vertically through the concave groove 9f at the tip of the electric wire clamp 9 and engages with the positioning hole 16 'of the metal plate 7. The left and right clamp upper surfaces 9g of the concave groove 9f stably support the metal plate 7 with a wide area.

Wire with terminals 11 having been subjected to the carrier cut final frame type 15 ₁₃ of FIG. 2 is sent to the resin molding machine 4 in the mobile unit (not shown) is gripped by the wire clamp 9 with a chuck (not shown).

  The front end portion 9a of the wire clamp 9 is inserted into the front opening 40a of the lower resin molding die 40 from above or from the front, and the terminal 10 at the end of the electric wire 8 (wire 11 with terminal) is the lower resin molding die. A cylindrical insulating resin material 12 is formed on the outer periphery of the terminal 10 with the upper and lower resin molding dies closed, located in a resin molding chamber between 40 and an upper resin molding die (not shown).

  The terminal-attached electric wire 11 to which the insulating resin material 12 is adhered is carried forward (on the feeder side) by a chuck (not shown), and the electric wire clamp 9 and the electric wire 11 with a terminal are separated at a separation position (not shown). Reference numeral 9 denotes another chuck (not shown), which is returned (re-supplied) to the right end side of the feeder 2 in FIG. 2, and the terminal-attached electric wire 11 with the insulating resin material 12 is delivered as an intermediate product.

  In the electric wire with terminal 11 with the insulating resin material 12, after each piece type 15 of FIG. 2 is replaced, an outer terminal (not shown) in each piece type (not shown) after the changeover is placed outside the insulating resin material 12. It is assembled and crimped and connected to the braid 8d (FIG. 3) of the electric wire 8.

  The above description is mainly about the cable assembling apparatus 1, but it can be seen as a cable assembling method by replacing the passive description in the above description with the active description. With the cable assembling apparatus 1 and the cable assembling method, the press 10 can simultaneously form the terminal 10 with the metal plate 7 and crimp the terminal 10 onto the electric wire 8. For example, when the electric wire 8 is set in the electric wire clamp 9, the set position accuracy of the electric wire 8 can be improved by correcting the tip position of the electric wire 8 by image processing. Further, the press machine 3, the resin molding machine 4, the feeder (conveyor) 2, and the image processing can be centrally operated on one operation screen 6.

  The cable assembling apparatus and the cable assembling method according to the present invention, for example, when assembling a high-frequency band connector for automobiles, crimp the terminal to the core wire of the coaxial cable with high precision by round crimping, etc. Even terminals that cannot be wound can be caulked and connected to the electric wire, and the press machine and the crimping machine, and the press mold and the caulking mold can be integrated to reduce the equipment cost.

DESCRIPTION OF SYMBOLS 1 Cable assembly apparatus 2 Feeder 3 Press machine 4 Resin molding machine 7 Metal plate 8 Electric wire 9 Electric wire clamp (electric wire holding jig)
9a tip 10 terminal 12 insulating resin material 13 wire chuck 14 below the pressing die 15 (15 ₁ to 15 ₁₃₎ frame-type 17 guide pins (metal plate guide portion)
33 Fixed frame 34 Movable plate 35 Positioning pin (positioning part)
36 Positioning pin (Metal plate positioning part)

Claims (7)

  A press machine having a lower press die in which a plurality of types of pieces for crimping an electric wire to the terminal are formed in parallel through a plurality of steps from a metal plate, and the lower press die A plurality of parallel electric wire holding jigs having a metal plate guide portion at a tip portion entering between the plurality of types of piece molds in the mold, and the lower press of the electric wire holding jig together with the metal plates A cable assembling apparatus comprising: a feeder that raises the die higher than the piece shape and advances and descends toward the adjacent next piece shape. The cable assembly apparatus according to claim 1, further comprising: an electric wire chuck that supplies the electric wire to the electric wire holding jig in an intermediate piece shape among the plurality of types of piece shapes.   The said feeder is provided with the fixed frame and movable plate which each have a positioning part with respect to the said electric wire holding jig, and this movable plate can raise / lower and advance / retreat with respect to this fixed frame. 3. The cable assembling apparatus according to 2.   The lower press die has a metal plate positioning portion, the metal plate positioning portion is detached from the metal plate when the metal plate is raised, and is moved to the metal plate when the metal plate is advanced and lowered. The cable assembly apparatus according to claim 1, wherein the cable assembly apparatus is engaged.   A resin molding machine for attaching an insulating resin material to the terminal crimped to the electric wire, wherein the electric wire with the terminal is supplied to the resin molding machine while being held by the electric wire holding jig. The cable assembly apparatus according to claim 1.   Each electric wire holding jig is arranged between a plurality of kinds of parallel pieces of a lower press die of a press machine, and a metal plate is supplied along the plurality of kinds of pieces, and the lower press The metal plate is positioned by the metal plate positioning portion of the mold, and the metal plate is pressed and processed by the piece mold in a state where the metal plate is guided and supported by the wire holding jig. It is raised higher than the piece shape and moved forward and down by one pitch, and the metal plate is placed in the next next piece shape and pressed, and this process is repeated for the plural types of piece shapes. A cable assembly method comprising forming a terminal from the metal plate and crimping an electric wire to the terminal. The cable assembling method according to claim 6, wherein the electric wire crimped to the terminal is sent to an adjacent resin molding machine integrally with the electric wire holding jig, and an insulating resin material is adhered to the terminal.

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