JP2013054974A5 - Crimp blade for terminal crimping, electric wire with terminal - Google Patents

Description

The present invention is primarily electrode plates and the battery, and pin crimping crimper type blade wire connection terminal for connecting the electric wire to the conductive member of the distribution plate, the terminal crimping crimper type blades this, conductive core wire Material to those about the crimped fixed terminals with conductive wires in the wire connection terminal.

Therefore, engagement Ru pin crimping crimper type blade to the present invention, in view of the above problems, and extends the chamfered portion to the ridge of the guide groove of the groove inner wall and the crimper type blade edge surface, the chamfered By making the left and right width of the part wider than the left and right width of the bottom of the arch groove, the force applied to the crimper blade at the time of crimping and fixing is dispersed, cracking and heat generation of the crimper blade are prevented, and long life and low cost are realized, and to provide a pin crimping crimper type blades that to prevent breakage or cracks by suppressing stress concentration in the wire standing piece.
Moreover, the electric wire with a terminal which concerns on this invention makes the right-and-left width | variety of a bell mouth wider than the right-and-left width | variety of the front-and-rear middle part in the crimping-fixed wire standup piece in view of the point mentioned above, at the time of crimping fixation of an electric wire. An object of the present invention is to provide a terminal-attached electric wire in which the tensile strength of the electric wire is improved at the same time as preventing the wire upright piece from being cracked or cracked by dispersing the stress on the wire upright piece.

Pin crimping machine, the conductive core material S conductive line E, a pair of left and right wire standing pieces 4a, a crimped to conductive member B and the terminal crimping machine wire connection terminal 1 to be connected between 4b,
An anvil blade 31 that supports the electric wire connection terminal 1, and a crimper blade 32 that presses the electric wire connection terminal 1 along the vertical direction to the anvil blade 31;
The crimper type blade 32 is formed with a guide groove 34 for allowing the wire connecting terminal 1 and the anvil type blade 31 supporting the wire connecting terminal 1 to enter and exit along the pressing direction.
The guide groove 34 is located at the back of the groove between the pair of left and right groove inner walls 35a and 35b for guiding the wire connection terminal 1 and the anvil blade 31 to the groove depth, and between the groove inner walls 35a and 35b, and the wire connection. A pair of left and right arch groove bottoms 36a and 36b depressed so as to press and crimp a pair of left and right wire upright pieces 4a and 4b of the terminal 1, and a pair of left and right arch groove bottoms 36a and 36b and a crimper type blade A pair of left and right chamfered portions 38a and 38b along a ridge line with the blade surface 37 in the front-rear direction in 32,
These chamfered portions 38a and 38b extend to the ridgeline between the groove inner walls 35a and 35b of the guide groove 34 and the blade surface 37 of the crimper blade 32,
The pair of left and right chamfered portions 38a, 38b of the lateral width W1, the pair of right and left arcuate groove bottom 36a, Ru mower when it is wider than the lateral width W2 of 36b.

In addition , the anvil blade 31 is provided with a wire support portion 39 that supports the pair of left and right wire upright pieces 4a and 4b of the wire connection terminal 1 from below,
The crimper blade 32 is close to the wire connection terminal 1 and the anvil blade 31 from above, and is a crimping position U where the conductive core material S of the wire E is crimped and fixed between the pair of left and right wire upright pieces 4a and 4b. chamfer 38a at, 38b lower end G1 of, Ru if mower that is positioned lower than the upper end G2 of the wire support portion 39 of the anvil blade 31 entering into the guide groove 34.

Further, the said anvil blade 31, the wire connection terminal 1 of the pair of left and right wire standing pieces 4a, the wire supporting portion 39 for supporting from below is provided to 4b,
The crimper type blade 32 approaches the wire connection terminal 1 and the anvil type blade 31 from above and moves the anvil type blade 31 so that the lower end G1 of the chamfered portions 38a and 38b is lower than the upper end G2 of the wire support portion 39. If the guide groove 34 at a groove width W3 which enters the Mizooku is formed Ru mower.

A chromatography Chi groove bottom 36a, and extends 36b and the crimper type blade 32 pair of chamfered portions 38a along the ridge line between the rake surface 37 of the 38b groove inner wall 35a, to 35b, a pair of right and left chamfer 38a 38b, the left and right width W1 (distance from the left end of the left chamfered portion 38a to the right end of the right chamfered portion 38b), and the left and right width W2 of the pair of left and right arch groove bottoms 36a and 36b (from the left end of the left arch groove bottom 36a to the right arch). When the wire connection terminal 1 supported by the anvil blade 31 is pressed by the crimper blade 32, the pair of left and right wires to be crimped is made wider than the distance to the right end of the groove bottom 36b. A gap d is formed between the left and right chamfered portions 38a and 38b on the left and right outer sides of the standing pieces 4a and 4b.
The gap d is pushed by the crimper type blade 32 and the surplus portion A generated at the ends in the front-rear direction of the wire upright pieces 4a, 4b is directed to the side opposite to the crimper type blade 32 side (anvil type blade 31 side). At the same time, the force and impact applied from the crimper type blade 32 to the wire upright pieces 4a and 4b can be released to the anvil type blade 31 side together with the surplus portion A through the gap d.

By such stress dispersion, the pressing force that can be endured as a whole of the wire upright pieces 4a and 4b is increased, and the wire upright pieces 4a and 4b can be caulked with a stronger force. Increases tensile strength.
Further, when the crimper type blade 32 approaching the electric wire connecting terminal 1 and the anvil type blade 31 from above is in the caulking position U where the conducting core material S is crimped and fixed between the wire upright pieces 4a and 4b, When the lower end G1 is positioned below the upper end G2 of the wire support portion 39 of the anvil blade 31, the left and right outer clearances d of the pair of left and right wire upright pieces 4a and 4b are crimped. 4b, the reaction force generated in the surplus portion A can be further reduced by the extent that the gap d extends.

Then, the guide groove 34, when the lower end G1 of the chamfered portion 38 is formed with a groove width W3 which it is possible to enter the anvil blade 31 to Mizooku to a lower position than the upper end G2 of the wire support portion 39 The left and right outer clearances d of the wire upright pieces 4a and 4b can be extended to the lower side of the wire upright pieces 4a and 4b even when the wire connection terminal 1 is crimped. The generated surplus portion A and reaction force can be further released (released force F ′).
The groove width W3 of the guide groove 34 is a groove width in the pair of left and right chamfered portions 38a and 38b. More specifically, the length from the lower end G1 of the left chamfered portion 38a to the lower end G1 of the right chamfered portion 38b. It becomes. Also, “the guide groove 34 is formed with a groove width W3 that allows the anvil blade 31 to enter the groove deeply so that the lower end G1 of the chamfered portion 38 is below the upper end G2 of the wire support portion 39”. Means that the groove width W3 is larger than the length W6 from the upper left end G2 to the upper right end G2 of the wire support portion 39 of the anvil blade 31.

In order to achieve the above object, the present invention employs the following technical means.
The crimper blade for terminal crimping according to the present invention firstly includes an electric wire connecting terminal 1 for connecting the conductive core material S of the electric wire E to the conductive member B by crimping and fixing between the pair of left and right wire upright pieces 4a and 4b. A crimper type blade for terminal crimping,
A guide groove that presses the wire connection terminal 1 along the vertical direction with the anvil blade 31 that supports the wire connection terminal 1 and allows the wire connection terminal 1 and the anvil blade 31 to enter and exit along the pressing direction. 34 is formed,
The guide groove 34 is located at the back of the groove between the pair of left and right groove inner walls 35a and 35b for guiding the wire connection terminal 1 and the anvil blade 31 to the groove depth, and between the groove inner walls 35a and 35b, and the wire connection. A pair of left and right arch groove bottoms 36a and 36b which are depressed so as to press and crimp the pair of left and right wire upright pieces 4a and 4b of the terminal 1, and the pair of left and right arch groove bottoms 36a and 36b and the front and rear direction A pair of left and right chamfered portions 38a and 38b along a ridge line with the blade surface 37,
These chamfered portions 38a, 38b extend to the ridgeline between the groove inner walls 35a, 35b of the guide groove 34 and the blade surface 37,
The left-right width W1 of the pair of left and right chamfered portions 38a, 38b is wider than the left-right width W2 of the pair of left and right arch groove bottoms 36a, 36b.

Other, wherein approached from above the wire connecting terminals 1 and anvil blade 31, the chamfered portions 38a, Ru if mower to 38b lower end G1 of is positioned below the arch groove bottom 36a, 36b lower end G3 of.

In a further, the chamfered portions 38a, 38b chamfered surface 40 of the arcuate groove bottom 36a, Ru if mower are continuous through the bottom surface 41 and the curved R 'of 36b.

Due to the above features, the left and right widths W1 of the chamfered portions 38a and 38b formed along the ridgeline between the arch groove bottoms 36a and 36b and the groove inner walls 35a and 35b and the blade surface 37 are By making the width wider than the width W2, the force applied to the crimper blade 32 and the wire upright pieces 4a and 4b through the gap d formed on the left and right outer sides of the wire upright pieces 4a and 4b is released (the released force F '), Prevention of cracking in the crimper-type blade 32, prolongation of life, prevention of seizure, suppression of cracking, cracking and distortion in the wire standing pieces 4a and 4b, and improvement of the tensile strength of the electric wire E can be realized.
Further, in the case of the lower end G1 of the chamfered portion 38 is positioned below the lower end G3 arch groove bottom 36 is extended to more downward the gap d, can escape more power from the gap d, addition Thus, when the chamfered surface 40 of the chamfered portion 38 is made continuous with the bottom surface 41 of the arch groove bottom 36 via the curved surface R ′, it is formed at the front and rear ends of the crimped wire upright pieces 4a and 4b. The rise of the bell mouth 11 can be made gentle and the stress concentration can be further suppressed.

Second, the surface of the terminal body 2 is divided into a pressing part 42 formed by pressing the crimper blade 32 and a non-pressing part 43 having a surface roughness Ra larger than the pressing part 42.
The wire standing piece 4a, 4b, the wire erected pieces 4a, the surface of the longitudinal intermediate portion and the bell mouth 11 in 4b, characterized that you have had the pressed portion 42.

Other, the right and left pair of wires standing pieces 4a, the value of the longitudinal length L of the 4b, when the Ru same value der and the thickness t of the crimper type blade 32 Ru mower.

Further, the wire standing piece 4a which is crimped in a curved shape, 4b is Ru if mower the arcuate portion 10 is formed at the end portion in the longitudinal direction at the tip of the upright direction.

Due to the above features, the welded portion 3 to be welded to the conductive member B is formed at the front end portion of the terminal body 2, and the conductive core material S of the electric wire E is crimped and fixed to the middle portion of the terminal body 2 in the front-rear direction. A pair of wire upright pieces 4a and 4b are formed, and the left and right width W4 of the bell mouth 11 formed at the ends of the wire upright pieces 4a and 4b in the front-rear direction is shown in the middle of the wire upright pieces 4a and 4b in the front-rear direction. Even if the pair of left and right wire upright pieces 4a and 4b are crimped in a curved shape by the pressing of the crimper type blade 32 approaching the anvil type blade 31, it is equivalent to the bell mouth 11 The surplus portion A at the end portions in the front-rear direction of the wire upright pieces 4a and 4b to be released will be released not only in the vertical direction but also in the left and right outer directions, compared with the case where the surplus portion A is not escaped in the left and right outer directions. Wire Tatsuhen 4a, the stress applied to 4b also curved wire erected pieces 4a, are distributed along the 4b end, the wire standing pieces 4a, 4b of the cracking and cracks, distortion can be prevented.
In addition, this invention is the electric wire E 'with the electric wire connection terminal 1 which has the welding part 3 welded to the electrically-conductive member B to the last, Comprising: It inserts in the cavity of a connector housing which does not have such a welding part 3. Application scenes and technical ideas differ from terminal fittings.

Furthermore, the surface of the terminal main body 2 is divided into a pressing portion 42 and a non-pressing portion 43, and the pressing portion 42 is provided not only in the midway part in the front-rear direction of the wire upright pieces 4a and 4b but also on the surface of the bell mouth 11. Thus, the bell mouth 11 is formed by hitting the portion (the chamfered portions 38a, 38b) forming the bell mouth 11 in the crimper type blade 32, and crimping the wire upright pieces 4a, 4b and bell mouth. The pressing force F applied when forming the wire 11 is received by the wire rising pieces 4a and 4b and the entire pressing portion 42 of the bell mouth 11, and the stress generated in the wire rising pieces 4a and 4b is dispersed.
The stress dispersion as in the present invention has a higher degree of stress dispersion than, for example, the stress dispersion in the case where there is no pressed portion on the surface of the bell mouth.
When there is no pressing portion on the surface of the bell mouth 11, that is, when the surplus portion A corresponding to the bell mouth 11 protrudes from the front and rear direction of the pressing crimper blade 32, the crimper blade 32 is provided. The stress is concentrated at the boundary between the pressed portion and the bell mouth 11 generated without being pressed.

In addition, when the length L of the wire upright pieces 4a and 4b is set to the same value as the thickness t of the crimper type blade 32, the wire upright pieces 4a and 4b are pressed when pressed by the crimper type blade 32. The end portion in the front-rear direction (corresponding to the surplus portion A) hits the portion (the chamfered portions 38a and 38b) forming the bell mouth 11 in the crimper-type blade 32 and escapes to the left and right, so that the surplus portion The stress concentration of the wire upright pieces 4a and 4b can be prevented as much as A is released.
That is, the stress distribution of the wire upright pieces 4a and 4b is performed to suppress cracks, cracks, and distortion, and at the same time, even in the case of an electric wire connection terminal processed and formed from the same metal plate K, it is better to disperse the stress. The pressing force which can be endured as a whole of the pieces 4a and 4b is increased, and the wire upright pieces 4a and 4b can be crimped with a stronger force, so that the tensile strength of the wire E with respect to the wire connection terminal 1 can be improved.

The “same” in the present invention includes “substantially the same” value, length, etc., as well as “substantially the same”, which is substantially the same value, length, etc.
This “substantially the same” means that, in the present invention, for example, if the surplus portion A hits the chamfered portions 38a, 38b of the crimper type blade 32 and can escape to the left and right, even if the values are slightly different, That can be regarded as the same value.

Further, the wire erected pieces 4a which is crimped in a curved shape, if you form an arc portion 10 before the rear end portion of the upright front end of the 4b is when the wire standing pieces 4a, 4b are combined is erected leading ends caulked Further, since the arc portion 10 is also combined and the surplus portion A is released to the left and right by the amount corresponding to the arc portion 10, further stress distribution can be achieved.

In addition, the manufacturing apparatus of the electric wire with a terminal includes the electric wire E and the electric wire connecting terminal 1 for connecting the conductive core material S of the electric wire E to the conductive member B by crimping and fixing between the pair of left and right wire upright pieces 4a and 4b. An apparatus for manufacturing an electric wire with a terminal, comprising:
An anvil blade 31 that supports the electric wire connection terminal 1, a crimper blade 32 that presses the electric wire connection terminal 1 along the vertical direction against the anvil blade 31, and presses the crimper blade 32 against the electric wire connection terminal 1. Pressing means 33 to be provided,
The crimper type blade 32 is formed with a guide groove 34 for allowing the wire connection terminal 1 and the anvil type blade 31 supporting the wire connection terminal 1 to enter and exit along the pressing direction.
The guide groove 34 is located at the back of the groove between the pair of left and right groove inner walls 35a and 35b for guiding the wire connection terminal 1 and the anvil blade 31 to the groove depth, and between the groove inner walls 35a and 35b, and the wire connection. A pair of left and right arch groove bottoms 36a and 36b depressed so as to press and crimp a pair of left and right wire upright pieces 4a and 4b of the terminal 1, and a pair of left and right arch groove bottoms 36a and 36b and a crimper type blade A pair of left and right chamfered portions 38a and 38b along a ridge line with the blade surface 37 in the front-rear direction in 32,
These chamfered portions 38a and 38b extend to the ridgeline between the groove inner walls 35a and 35b of the guide groove 34 and the blade surface 37 of the crimper blade 32,
The pair of left and right chamfered portions 38a, 38b of the lateral width W1, the pair of right and left arcuate groove bottom 36a, Ru mower when it is wider than the lateral width W2 of 36b.

According to engagement Ru pin crimping crimper type blade to the present invention, a chamfered portion along the ridge line of the arch groove bottom and the groove inner wall and the crimper type blade edge surface, the lateral width of the chamfer, The life of the crimper blade can be extended by making it wider than the left and right width of the arch groove bottom.
Moreover, according to the electric wire with a terminal according to the present invention, by making the left and right width of the bell mouth wider than the left and right width of the middle part of the front and rear of the wire standing piece fixed by crimping, it is possible to prevent the wire standing piece from being cracked or cracked. I can do it.

It is a top view which shows the electric wire connection terminal and carrier of an electric wire with a terminal concerning the present invention. It is a side view which shows an electric wire connection terminal and a carrier. (A) is an AA arrow directional view of FIG. 1, (b) is a BB arrow directional view of FIG. It is a top view which shows the electric wire connection terminal which crimped and fixed the electric wire. It is a perspective view which shows the electric wire with a terminal which connected the electric wire and the electrically-conductive member (dry battery). A schematic diagram showing a manufacturing apparatus the ends of the terminal wires with, (a) shows the apparatus for manufacturing a fully automatic, and (b) is a manually operated production equipment. It is a perspective view showing a pin crimping machine. It is side surface sectional drawing which shows a terminal crimping machine. It is a perspective view which shows the crimping tool (anvil type blade, wire crimper type blade) of a terminal crimping machine. (A) is a perspective view which shows an anvil type blade, (b) is a front view which shows an anvil type blade, (c) is a side view which shows an anvil type blade. (A) is a perspective view which shows the crimper type blade which concerns on this invention, (b) is a front view which shows a crimper type blade, (c) is CC sectional view taken on line CC of (a). . (A) is a front view which shows the anvil type blade in a crimping position, a crimper type blade, and an electric wire connection terminal, (b) is DD sectional view taken on the line of (a). It is side surface sectional drawing which showed the crimping | compression-bonding 1st process. (A) is side surface sectional drawing which showed the crimping | compression-bonding 2nd process, (b) is an enlarged view of the side surface cross section showing the electric wire connection terminal, the anvil type blade, and the slide cutter. It is side surface sectional drawing which showed the crimping | compression-bonding 3rd process. It is side surface sectional drawing which showed the crimping | compression-bonding 4th process. It is side surface sectional drawing which showed the crimping | compression-bonding 5th process.

Hereinafter, the terminal crimping machine 30 of conductive wire connecting terminals 1, crimper type blade 32 for terminal crimping, wire with terminals E of the present invention ', and the wire with terminals E' manufacturing apparatus 100 for manufacturing a basis of the drawings Embodiments will be described.
The terminal-equipped electric wire E ′ manufacturing apparatus 100 is equipped with a terminal crimping machine 30 that crimps and fixes the wire connection terminal 1 to the electric wire E. The terminal crimping machine 30 is also called an applicator, and has a desired length of the electric wire E. The wire connection terminal 1 is fixed by crimping to the conductive core S exposed at the end of the wire, and the wire connection terminal 1 is electrically connected to the end of the wire E.

Engaging Ru pin crimping crimper type blade to the present invention is primarily but is intended to crimp a terminal to connect the electrical wires and the like or dry cell or button cell, very thin metal plate fixed by caulking the electric wire in the electronic device If it is a terminal comprised by, it can utilize also for the terminal used for electrically-conductive members other than the battery of a computer and an audio equipment.
Of course, the electric wire with a terminal according to the present invention is not limited to an electric wire with a terminal for connecting the electric wire to a dry battery, a button battery, or the like, and similarly, it is extremely thin for caulking and fixing the electric wire in an electronic device. If it is a terminal comprised with the metal plate, even if it is an electric wire which attached the terminal used for electrically conductive members other than the battery of a computer and an audio equipment, it can utilize.

Claims (3)

A crimping type for terminal crimping of a wire connecting terminal (1) in which a conductive core (S) of an electric wire (E) is crimped and fixed between a pair of left and right wire upright pieces (4a, 4b) and connected to a conductive member (B). A blade,
The wire connection terminal (1) is pressed along the up and down direction between the anvil blade (31) supporting the wire connection terminal (1), and the wire connection terminal (1) and the anvil are pressed along the pressing direction. A guide groove (34) for entering and exiting the mold blade (31) is formed,
The guide groove (34) is formed between a pair of left and right groove inner walls (35a, 35b) for guiding the wire connection terminal (1) and the anvil type blade (31) to the depth of the groove, and the groove inner walls (35a, 35b). A pair of left and right arch groove bottoms (36a, 36b) which are located in the back of the groove and are recessed so as to press and crimp the pair of left and right wire upright pieces (4a, 4b) of the wire connection terminal (1). And a pair of left and right chamfers (38a, 38b) along the ridge line between the pair of left and right arch groove bottoms (36a, 36b) and the blade surface (37) in the front-rear direction,
These chamfered portions (38a, 38b) extend to the ridgeline between the groove inner walls (35a, 35b) of the guide groove (34) and the blade surface (37),
The right and left width (W1) of the pair of left and right chamfered portions (38a and 38b) is wider than the right and left width (W2) of the pair of left and right arch groove bottoms (36a and 36b). Crimper type blade. An electric wire with a terminal having an electric wire (E) and an electric wire connecting terminal (1) for connecting the conductive core (S) of the electric wire (E) to the conductive member (B),
A welded portion formed at the front end of the terminal body (2) and welded to the conductive member (B) on a terminal body (2) formed by processing and molding a metal plate (K) having at least both front and back surfaces made of nickel. (3) and a pair of left and right wire upright pieces (4a, 4b) formed in a midway portion in the front-rear direction of the terminal body (2),
A pair of left and right wire upright pieces (4a, 4a, 4c) pressed by a crimper type blade (32) approaching the anvil type blade (31) supporting the pair of left and right wire upright pieces (4a, 4b) 4b), the conductive core material (S) of the electric wire (E) is fixed by crimping,
A bell mouth (11) is formed at the ends in the front-rear direction of the pair of left and right wire upright pieces (4a, 4b) that are fixed by crimping.
The left and right width (W4) of the bell mouth (11) is wider than the left and right width (W5) of the midway part in the front-rear direction of the pair of left and right wire upright pieces (4a, 4b) fixed by crimping. Electric wire with terminal. The surface of the terminal body (2) includes a pressing part (42) formed by pressing the crimper blade (32), and a non-pressing part (43) having a surface roughness Ra larger than the pressing part (42). Divided into
The said wire standing piece (4a, 4b) has the said press part (42) in the middle part of the front-back direction in this wire standing piece (4a, 4b) and the surface of a bell mouth (11). The electric wire with a terminal according to claim 2 .