JP2005011615A - Terminal crimping device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the cost of a replacement component of a terminal crimping device, and to simplify replacement work. <P>SOLUTION: This terminal crimping device carries out an operation for crimping a terminal 12 to an end of a wire 54 by feeding a terminal chain 10 with multiple terminals connected at a predetermined interval to a crimping position to cut a connection part 16 of the terminal 12 fed to the crimping position. The terminal crimping device is characterized by that a feed mechanism 40 for the terminal chain 10 is attached to a press device 30 side; a cutting mechanism 52 for cutting the connection part 16 of the terminal 12 fed to the crimping position, and crimping mechanisms 58 and 62 for crimping the terminal to the end of the wire 54 are unitized; and the cutting-crimping unit 70 is attached to the press device 30 so as to be replaced according to the type of the terminal. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal crimping apparatus for crimping a terminal to an end portion of an electric wire.
[0002]
2. Description of the Related Art When a terminal is crimped to an end of an electric wire, the terminal is supplied to a terminal crimping apparatus in the form of a chain terminal as shown in FIGS. 9 (A) and 9 (B). (A) is a lateral feed type chain terminal 10 in which a large number of female terminals 12 (or male terminals are acceptable) are connected via a carrier 14 and a connecting portion 16 so as to be arranged side by side at a predetermined pitch. (B) is a vertical feed type chain terminal 18 in which a large number of female terminals 20 (may be male terminals) are connected via a connecting portion 22 so as to be arranged vertically at a predetermined pitch.
Each of the female terminals 12 and 20 includes a female contact 24 into which a male terminal is inserted, a wire barrel portion 26 that is crimped to a conductor of an electric wire, and an insulation barrel portion 28 that is crimped to an insulating coating of the electric wire. And have. The female contact 24 of the female terminal 12 shown in (A) is a cylindrical shape in which an elastic tongue piece is folded back from the tip in a square tube, and the female contact 24 of the female terminal 20 shown in (B) is This is a curl type in which elastic pieces are bent in a semicircular shape from both sides toward the center. Both are known chain terminals.
The terminal crimping apparatus feeds the chained terminals as described above to the crimping position one pitch at a time, sets the wire end in the wire barrel portion and the insulation barrel portion of the terminal that has come to the crimping position, and connects the terminals. The wire barrel part and the insulation barrel part of the same terminal are crimped to the wire end part.
A conventional terminal crimping device includes an applicator having a chain terminal feeding mechanism, a connecting portion cutting mechanism, and a crimping mechanism for crimping the wire barrel portion and the insulation barrel portion of the terminal to the end portion of the electric wire. Set to the press device, and perform one-stroke operation of the press device to feed the chained terminal to the applicator one pitch at a time, operation to cut the connecting part of the terminal, and operation to crimp the terminal to the end of the wire (Non-patent Document 1). In addition, the operation | movement which sets an electric wire edge part to the wire barrel part and insulation barrel part of a terminal may perform by the case where an operator performs, and the case where it performs automatically by an electric wire supply apparatus.
An applicator is prepared for each type of chain terminal, and when the type of chain terminal changes, the applicator is replaced.
[0007]
[Non-Patent Document 1] A. Catalog of M crimping machine [0008]
The applicator used in the conventional terminal crimping apparatus is structurally complicated because it incorporates various mechanisms such as chain terminal feeding, cutting, and crimping. For this reason, the unit price per unit is high, and it is necessary to prepare this for each type of terminal, resulting in high costs. Moreover, since the applicator is large and heavy, it takes time and labor to replace the applicator.
In view of the above problems, an object of the present invention is to reduce the cost of the terminal crimping apparatus as a whole and to efficiently perform replacement work when the type of terminal changes.
[0010]
In order to achieve this object, according to the present invention, a chain terminal in which a large number of terminals are connected at a predetermined pitch is fed to the crimping position by a predetermined pitch, and the terminals connected to the crimping position are connected. In a terminal crimping apparatus that performs the operation of crimping the wire barrel part and the insulation barrel part of the terminal to the end of the electric wire in the terminal, the chain terminal feeding mechanism generates a pressing force for terminal crimping A cutting mechanism that cuts the connecting portion of the terminal that is assembled to the crimping position and a crimping mechanism that crimps the wire barrel portion of the same terminal and the insulation barrel portion to the end of the electric wire are unitized, and this cutting and crimping unit is combined with the press The apparatus is characterized in that it can be replaced in accordance with the type of terminal.
The terminal crimping apparatus according to the present invention may be dedicated to the lateral feed type chain terminal or the vertical feed type chain terminal. However, the pressing apparatus includes a feed mechanism for the lateral feed type chain terminal and a feed mechanism for the vertical feed type chain terminal. , And the cutting and crimping unit for the horizontal feed type chain terminal and the cutting and crimping unit for the vertical feed type chain terminal can be installed interchangeably at the same position. It can be used for both type chain terminals.
In the terminal crimping apparatus according to the present invention, the feed mechanism of the lateral feed type chain terminal can change the feed pitch in accordance with the terminal pitch of the lateral feed type chain terminal. The feed mechanism is preferably configured so that the feed pitch can be changed according to the terminal pitch of the longitudinal feed type chain terminal.
[0013]
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.
1 to 6 show an embodiment of a terminal crimping apparatus according to the present invention. In the figure, reference numeral 30 denotes a pressing device that generates a pressing force for terminal crimping. The press device 30 has a base 32 and a head 34 that are provided so as to project vertically from the front and side corners. A pressure rod 36 is provided on the head 34 downward. 1 and 2 show a case where a cutting and crimping unit 38A for a lateral feed type chain terminal is set at a terminal crimping position between the base 32 and the head 34, and FIGS. 4 and 5 are also for a vertical feed type chain terminal. This is a case where the cutting and crimping unit 38B is set. A feed mechanism 40 for a lateral feed type chain terminal is attached to the front surface of the press device 30, and a feed mechanism 42 for a vertical feed type chain terminal is attached to a side surface of the press device 30.
The front feed mechanism 40 operates to feed the lateral feed type chain terminals 10 as shown in FIG. 9A to the terminal crimping position one pitch at a time (one female terminal 12 at a time). As shown in FIGS. 1 to 3, the feed mechanism 40 includes a first cylinder 44 fixed laterally via a fixing member 43 on the front surface of the press device 30, and a cutting and crimping unit 38 </ b> A by a piston of the cylinder 44. And a second cylinder 48 fixed upward on the front surface of the cradle 46, and a clamp member 50 that moves up and down by the piston of the cylinder 48. The feed mechanism 40 is installed such that the carrier 14 of the chain terminal 10 is positioned between the cradle 46 and the clamp member 50.
In the feed mechanism 40 depicted by a solid line in FIG. 2, the cradle 46 is in the retracted position, the clamp member 50 is in the lowered position, and the carrier 14 is sandwiched between the cradle 46 and the clamp member 50. It is in a state (see FIG. 3). When the cradle 46 is advanced by 1 pitch by the first cylinder 44 from this state, it becomes like a two-dotted line, and the chain terminal 10 is fed to the right by 1 pitch. Thereafter, the clamp member 50 is raised by the second cylinder 48 (the gripping of the carrier 14 is released), the cradle 46 is retracted to the original position by the first cylinder 44, and the clamp member 50 is moved by the second cylinder 48. Is lowered, the state returns to the solid line in FIG.
By repeating such an operation, the feed mechanism 40 feeds the female terminals 12 of the lateral feed type chain terminal 10 one by one to the crimping position. A control device (not shown) for causing each part to perform a predetermined operation at a predetermined timing is provided in the press device 30, and the first and second cylinders 44 and 48 are controlled by the control device. The operation as described above is performed. Since the arrangement pitch of the female terminals 12 of the chain terminal 10 varies depending on the size of the female terminal 12 and the like, the feed mechanism 40 can adjust the feed pitch according to the size of the chain terminal 10 and the like. Specifically, it is preferable that the first cylinder 44 can set a reciprocating stroke numerically.
1 and 2, a cutting / crimping unit 38A for a lateral feed type chain terminal is set at a terminal crimping position. The cutting and crimping unit 38A cuts the female terminal 12 sent to the crimping position by the feeding mechanism 40 from the carrier 14 (cuts the connecting portion 16) 52 (not shown in FIG. 2), The wire crimper 56 (on the back side of the insulation crimper 60) and the wire anvil 58 for crimping the wire barrel portion 26 to the conductor at the end of the electric wire 54, and the insulation barrel portion 28 of the female terminal 12 are connected to the end of the electric wire 54. An insulation crimper 60 and an insulation anvil 62 that are crimped to the insulating coating are provided. The cutter 52, the wire crimper 56, the wire anvil 58, the insulation crimper 60, and the insulation anvil 62 are the same as those used in the conventional lateral feed type chain terminal applicator. The wire crimper 56 and the insulation crimper 60 are assembled into an upper holder 64 to constitute an upper unit 66, and the cutter 52, the wire anvil 58 and the shroud anvil 62 are incorporated into a lower holder 68 to constitute a lower unit 70. ing. The upper unit 66 is attached to the pressure rod 36 of the press apparatus 30, and the lower unit 70 is fixed on the base 32 of the press apparatus 30.
The cutting and crimping unit 38A configured as described above cuts the connecting portion 16 of the female terminal 12 that has come to the crimping position by the one-stroke operation of the press device 30, and the wire barrel portion 26 and the insulation of the terminal. The operation of crimping the translation barrel portion 28 to the end of the electric wire 54 is performed. Note that the end of the electric wire 54 is supplied to the wire barrel portion 26 and the insulation barrel portion 28 of the female terminal 12 immediately before crimping by an electric wire supply mechanism (not shown) (or by an operator). When one cutting and crimping operation is completed, the completed electric wire with terminal is discharged, and the next female terminal 12 is sent to the crimping position, and the next cutting and crimping operation is performed. By repeating such operations, electric wires with terminals are manufactured one after another.
When changing the lateral feed type chain terminal 10 to a different size, the cutting and crimping unit 38A is replaced with the one for the changed lateral feed type chain terminal and the feed pitch of the feed mechanism 40 is changed. Change the setting to match the changed lateral feed type chain terminal. Since the cutting and crimping unit 38A is structurally simple and lightweight as compared with the conventional applicator, the replacement work can be easily performed. Also, the feed pitch can be changed easily on the control device side.
Next, a description will be given of a case where the vertical feed type chain terminal 18 as shown in FIG. In this case, as shown in FIG. 4 and FIG. 5, a cutting and crimping unit 38 </ b> B for longitudinal feed type chain terminals is set at the terminal crimping position of the press device 30, and the feed mechanism 42 attached to the side surface of the press device 30 is used. The vertical feed type chain terminal 18 is fed one pitch at a time.
As shown in FIGS. 4 to 6, the feed mechanism 42 is cut and pressure-bonded by a third cylinder 74 fixed laterally to the side surface of the press device 30 via a fixing member 72 and a piston of the cylinder 74. A block 76 that moves forward and backward toward the unit 38B, a fourth cylinder 78 that is fixed upward on the surface of the block 76 on the pressing device 30 side, and a feed member 80 that moves up and down by the piston of the cylinder 78 are provided. ing.
In the feed mechanism 42 shown by a solid line in FIG. 5, the block 76 is in the retracted position, the feed member 80 is in the lowered position, and the feed member 80 is connected to the female contact 24 of the preceding female terminal 20. The following female terminal 20 is in a state of falling into a recess between the insulation barrel portion 28 and the female terminal 20. When the block 76 is moved forward by one pitch by the third cylinder 74 from this state, it becomes like a two-dotted line, and the chain terminal 18 is fed forward by one pitch. Thereafter, when the feed member 80 is raised by the fourth cylinder 78, the block 76 is moved back to the original position by the third cylinder 74, and the feed member 80 is lowered by the fourth cylinder 78, the solid line in FIG. Return to state.
By repeating such an operation, the feeding mechanism 42 feeds the female terminals 20 of the longitudinal feed type chain terminal 18 one by one to the crimping position. The third and fourth cylinders 74 and 78 are operated as described above under the control of a control device provided in the press device 30. Since the arrangement pitch of the female terminals 20 of the chain terminals 18 also varies depending on the size of the female terminals 20, the feed mechanism 42 can adjust the feed pitch according to the size of the chain terminals 12, etc. Specifically, it is preferable that the third cylinder 74 can set a reciprocating stroke numerically.
4 and 5, a cutting and crimping unit 38B for a longitudinal feed type chain terminal is set at a terminal crimping position. The cutting and crimping unit 38B separates the female terminal 20 sent to the crimping position by the feeding mechanism 42 from the subsequent female terminal 20 (cuts the connecting portion 22), the upper blade 82 and the lower blade 84, and the female terminal 20. A wire crimper 86 and a wire anvil 88 for crimping the wire barrel portion 26 to the conductor at the end of the electric wire 54, and an insulation crimper 90 for crimping the insulation barrel portion 28 of the female terminal 20 to the insulation coating at the end of the electric wire 54. And an insulation anvil 92. The upper blade 82, the lower blade 84, the wire crimper 86, the wire anvil 88, the insulation crimper 90, and the insulation anvil 92 are the same as those used in the conventional vertical feed type chain terminal applicator. The upper blade 82, the wire crimper 86 and the insulation crimper 90 are assembled in the upper holder 94 to constitute an upper unit 96, and the lower blade 84, the wire anvil 88 and the shredding anvil 92 are incorporated in the lower holder 98 and are installed in the lower part The unit 100 is configured. The upper unit 96 is attached to the pressure rod 36 of the press device 30, and the lower unit 100 is fixed on the base 32 of the press device 30.
The cutting and crimping unit 38B constructed as described above cuts the connecting portion 22 of the female terminal 20 that has come to the crimping position by the one-stroke operation of the press device 30, and the wire barrel portion 26 and the insulation of the terminal. The operation of crimping the translation barrel portion 28 to the end of the electric wire 54 is performed. The method of supplying the end of the electric wire 54 is the same as in the case of the lateral feed type chain terminal. When one cutting and crimping operation is completed, the completed electric wire with terminal is discharged, and the next female terminal 20 is sent to the crimping position, and the next cutting and crimping operation is performed. By repeating such operations, electric wires with terminals are manufactured one after another.
When the vertical feed type chain terminal 18 is changed to another size, the cutting / crimping unit 38B is replaced with the changed one for the lateral feed type chain terminal and the feed pitch of the feed mechanism 42 is changed. Change the setting to match the vertical feed type chain terminal after the change. Since the cutting and crimping unit 38B is structurally simple and lightweight as compared with the conventional applicator, the replacement work can be easily performed. Also, the feed pitch can be changed easily on the control device side.
In the above embodiment, the case where only the connecting portion 16 is cut when the female terminal 12 of the lateral feed type chain terminal 10 is separated from the carrier 14 has been described. However, the present invention is not limited to this. Instead, when the female terminal 12 of the lateral feed type chain terminal 10 is separated from the carrier 14, both the connecting portion 16 and the carrier 14 may be disconnected as shown by the one-dot chain lines p and q in FIG. 7. .
In this case, the cutting and crimping unit 38A is preferably constructed as shown in FIG. That is, in the cutting and crimping unit 38A of FIG. 8, the width of the cutter 52 (the dimension in the same direction as the width of the carrier 14) is larger than the width of the carrier 14, and the inside of the cutter 52 (facing the insulation anvil 62). A groove 102 through which the carrier 14 passes is formed on the side). The cutter 52 is arranged so that its inner surface rubs against the end face of the insulation anvil 62 and its surface on the carrier outlet side rubs against the lower blade 104 installed on the lower side of the carrier 14.
Accordingly, when the cutter 52 is pushed down in the direction of the arrow by the pressing device, the connecting portion 16 is cut by the upper edge portion P of the opening end of the groove 102 and the insulation anvil 62, and the upper edge of the groove 102 on the carrier outlet side. The carrier 14 is cut by the part Q and the lower blade 104. If such a cutting method is taken, the carrier 14 can be made into strip-shaped waste. Reference numeral 106 denotes a spring that pushes up the cutter 52 to its original position after the pressing force of the pressing device is released. Since the configuration other than the above is the same as that of the cutting and crimping unit 38A shown in FIGS. 1 to 3, the same parts are denoted by the same reference numerals and description thereof is omitted.
[0031]
As described above, according to the present invention, the chain terminal feeding mechanism is assembled on the press device side, and the terminal cutting mechanism and the crimping mechanism are unitized to form a cutting and crimping unit. The cutting and crimping unit that needs to be replaced accordingly can be structurally simple and lightweight. As a result, the cutting and crimping unit to be prepared according to the type of terminal is much cheaper than the conventional applicator, and can greatly reduce the cost. Moreover, since the cutting and crimping unit is simple in structure and light in weight, replacement work can be easily performed in a short time, and the operating rate of equipment can be improved.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a terminal crimping apparatus according to the present invention, omitting the upper part of the apparatus in a crimping operation state using a lateral feed type chain terminal.
FIG. 2 is a front view of the terminal crimping apparatus in the state shown in FIG.
FIG. 3 is a view taken along the line AA in FIG. 2;
4 is a plan view showing the terminal crimping apparatus in FIG. 1 with the upper part of the apparatus omitted in a crimping operation state using a longitudinal feed type chain terminal. FIG.
FIG. 5 is a side view of the terminal crimping apparatus in the state of FIG. 4;
6 is a BB line arrow view of FIG. 5;
FIG. 7 is an explanatory view showing a cutting position of a lateral feed type chain terminal.
8A and 8B show a main part of another embodiment of the terminal crimping apparatus according to the present invention, in which FIG. 8A is a plan view, FIG. 8B is a front view, FIG. 8C is a side view, and FIG. The rear view of the cutter shown in FIG.
9A is a plan view showing an example of a lateral feed type chain terminal, and FIG. 9B is a plan view showing an example of a vertical feed type chain terminal.
[Explanation of symbols]
10: Transverse feed type chain terminal 12: Female terminal 14: Carrier 16: Connection part 18: Vertical feed type chain terminal 20: Female terminal 24: Female type contactor 26: Wire barrel part 28: Insulation barrel part 30: Press device 32: Base 34: Head 36: Pressure rod 38A: Cutting / crimping unit 38B for horizontal feed type chain terminal: Cutting / crimping unit 40 for vertical feed type chain terminal: Feed mechanism 42 for horizontal feed type chain terminal: Vertical Feed mechanism 44 for feed type chain terminal: first cylinder 48: second cylinder 50: clamp member 52: cutter 54: electric wire 56: wire crimper 58: wire anvil 60: insulation crimper 62: insulation anvil 64: Upper holder 66: Upper unit 68: Lower holder 70: Lower unit 74: Third Linda 78: Fourth cylinder 80: Feed member 82: Upper blade 84: Lower blade 86: Wire crimper 88: Wire anvil 90: Insulation crimper 92: Insulation anvil 94: Upper holder 96: Upper unit 98: Lower holder 100 : Lower unit

Claims (3)

A chain terminal in which a large number of terminals are connected at a predetermined pitch is sent to the crimping position by a predetermined pitch, and the connecting part of the terminal at the crimping position is cut, and the wire barrel part and the insulation barrel part of the terminal are connected to the end of the electric wire. In the terminal crimping device that performs the operation of crimping to
The chain terminal feeding mechanism is assembled on the side of the press device that generates pressure for terminal crimping, and the wire barrel portion and the insulation barrel portion of the same terminal as the cutting mechanism for cutting the connecting portion of the terminal coming to the crimping position are connected to the electric wire. A terminal crimping apparatus characterized in that a crimping mechanism for crimping to an end is unitized, and this cutting and crimping unit is attached to the press apparatus in a replaceable manner according to the type of terminal. The press device is assembled with a feed mechanism for a horizontal feed type chain terminal and a feed mechanism for a vertical feed type chain terminal, and a cutting and crimping unit for a horizontal feed type chain terminal and a cutting and crimping for a vertical feed type chain terminal. 2. The terminal crimping device according to claim 1, wherein the unit and the unit can be exchanged at the same position. The feed mechanism of the horizontal feed type chain terminal can be changed according to the terminal pitch of the horizontal feed type chain terminal. The feed mechanism of the vertical feed type chain terminal is the terminal pitch of the vertical feed type chain terminal. The terminal crimping device according to claim 2, wherein the feed pitch can be changed according to the frequency.

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