JPH0251885A - Lead wire terminal treatment device - Google Patents

Abstract

PURPOSE:For a lead wire to be certainly an closely wound round a terminal pin while the lead wire is easily cut even if its diameter is large by coaxially arranging a binding shaft, a sleeve and a tube clamper to rotate and slide them with a clutch fitted to a driving shaft. CONSTITUTION:A clamper 40 is operated to support the end of a lead wire to be wound round a terminal pin between a hook 37 at the tip of a tube 16 and the clamper 40, and then, a clutch 17 is operated to advance a sleeve 2 and a binding shaft 1 while the lead wire is received in a guide groove of the sleeve 2 and a receiving groove 7 of the binding shaft 1 to insert the terminal pin into a hole 6 at the tip of the binding shaft 1. Under this condition, a driving shaft 3 is coupled with the sleeve 2 through a clutch 17 to move clockwise and counterclockwise the binding shaft 1, the sleeve 2 and the hook 37. When the lead wire is wound round the terminal pin with prescribed turns by the above circular movement, only the binding shaft 1 moves clockwise and counterclockwise separately from the clutch 17 and the lead wire is cut by the edge portion between the receiving groove 7 of the binding shaft and the guide groove 12 of the sleeve. Thereby, the lead wire is certainly wound round the terminal pin and even a lead wire with a large diameter can be easily cut.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a lead wire end processing device that winds and cuts the ends of windings of electrical components such as coils around terminal pins.

(Prior art and problems to be solved) As a device for processing the terminals of lead wires such as coils,
As shown in No. 1, a lead shaft is provided with a terminal pin insertion hole at its tip and a wire holding part that can hold the wire, and the wire holding part is rotated together with the Karaage shaft around the terminal pin. Some wires are wrapped around terminal pins and cut.

However, in this case, the spindle only sets a gap between the terminal pin and the base (a gap equivalent to the number of winding turns), but does not guide the lead wire, so depending on the winding angle of the lead wire, The lead wire does not wrap properly around the terminal pin, and the tension generated between the lead wire and the wire holder as it is wound causes the lead wire to be cut, so the cut wire end may protrude outward or the wire may have a large diameter. The problem is that it is difficult to cut.

Furthermore, in Japanese Patent Publication No. 57-34641, there is a device in which a stationary sleeve is fitted to the Karaage shaft and the lead wire is cut at the edge of an inclined slit formed in the Karage shaft and the stationary sleeve. After cutting, the wire is wound around the terminal pin without applying tension, which causes the problem that tight winding cannot always be obtained.

An object of the present invention is to provide a lead wire end processing device that solves these problems.

(Means for Solving the Problems) The present invention provides a lead wire terminal processing device for an electrical component having a terminal pin, which includes a sleeve having a wire guide groove formed on the side surface of the tip, a winding hole for the wire at the tip, and a terminal. a drag shaft formed with a pin insertion hole and a receiving groove corresponding to the guide groove on the side surface of the winding hole and rotatably fitted into the sleeve; a drive shaft for rotating the drag shaft from the rear; A clutch is fitted on the shaft and pushes the sleeve and the shaft in the axial direction in response to the supply of pressurized air, and transmits rotation of the drive shaft to the sleeve.A sleeve is attached to the tip of the tube supporting the sleeve. A hook portion is disposed on the guide groove side of the tube and rotates together with the sleeve, and a clamper is provided coaxially with the tube and pressed against the hook portion in response to supply of pressurized air.

(Operation) First, operate the clamper to wrap the wire around the terminal pin (
The end of the lead wire is held between the hook at the tip of the tube, and then the clutch is activated to advance the sleeve and the shaft while receiving the lead wire in the guide groove of the sleeve and the receiving groove of the shaft. Insert the terminal pin into the hole at the tip of the Karaage shaft. In this state, the drive shaft and the sleeve are connected via the clutch, and the drive shaft rotates the tie shaft, the sleeve, and the hook.

When the lead wire wraps around the terminal pin a predetermined number of turns due to these rotations, the clutch is released and only the shaft is rotated, so that the edge between the receiving groove of the shaft and the guide groove of the sleeve Cut the lead wire.

Therefore, the lead wire can be wound securely around the terminal pin, and even lead wires with a large diameter can be easily cut. Reference numeral 2 indicates a sleeve that fits into the drag shaft 1, 3 indicates a drive shaft disposed behind the drag shaft 1, and 4 indicates a motor (pulse motor, etc.) for rotating the drive shaft 3. .

The shaft 1 has an insertion hole 5 at its tip into which a terminal pin such as a coil can be inserted, a winding hole 6 corresponding to the outer diameter of the wire to be wound around the terminal pin and the length of the number of winding turns. A receiving groove 7 (or one receiving groove) having a predetermined width is formed along the axial direction on the side surface. A tenon-shaped joint 8 is connected to the drive shaft 3 at the rear of the shaft 1.
is formed, and is connected so that the drag shaft 1 can rotate together with the drive shaft 3 while allowing the drag shaft 1 to be freely displaced in the axial direction.

The drive shaft 3 includes a timing pulley 9 attached to the shaft end, a timing belt 10, and a timing pulley 11 on the drive side.
It is connected to the motor 4 via.

A guide groove 12 of a predetermined width is formed on the side surface of the tip of the sleeve 2 and expands toward the outer periphery along the axial direction in correspondence with the length 7 of the shaft 1 . A pin 15 is driven into the large diameter portion 13 of the sleeve 2 and engages with a circumferential groove 14 formed in the center of the collar shaft 1, so that the collar shaft 1 is freely supported only in rotation relative to the sleeve 2. .

Further, the sleeve 2 is slidably housed in a tube 16 that surrounds the drive shaft 4, and the tube 16 is located behind the sleeve 2.
A pair of sliders 18 and 19 constituting the clutch 17 are fitted between the drive shaft 4 and the drive shaft 4 so as to be freely slidable.

The slider 19 has a long key pad 21 formed on its inner peripheral surface that engages with a key 20 fitted on the drive shaft 4, and the slider 18 has
The inner peripheral surface is formed in a stepped shape so as to escape the key 20.

A meshing type joint 22.23 consisting of a concave portion and a convex portion is formed at the front end of the slider 18 and the rear end of the sleeve 2, and at the rear end of the slider 18 and the front end of one slider, respectively. Due to this connection, rotation of the drive shaft 4 can be transmitted to the sleeve 2 via the key 20 and the slider 19, 18.

Both the outer periphery of the rear end of the slider 18 and the front end of the slider 19 and the outer peripheral surface of the rear end of the slider 19 are
It is cut out to provide an annular space between the rain space and the rain space, and pressure chambers 24 and 25 are respectively formed in the rain space.

The pressure chamber 24 has a boat 26 passing through the tube 16@ surface.
and a pressurized air supply port provided in a stationary holder 30 that supports the rotating boulder 28 via a wide circumferential groove 27 on the outer periphery of the tube 16 and two boats formed on the rotating holder 28 that fits into the tube 16. 31. Further, the pressure chamber 25 is communicated with a pressurized air supply port 34 of the stationary holder 30 via a boat 32 penetrating the side surface of the tube 16 and a boat 33 of the rotating holder 28 .

On the other hand, at the distal end of the tube 16, the distal end of the sleeve 2 is supported, and the end face of the large diameter portion 13 of the sleeve 2 is supported so that the axial stroke (forward stroke) of the sleeve 2 is supported.
A bushing 35 that regulates the movement is fixed.

A spring 36 is interposed between the bush 35 and the large diameter portion 13 of the sleeve 2 to bias the sleeve 2 to the initial position fFt<the position shown in FIG. A hook portion 37 of the mold is provided to protrude parallel to the sleeve 2. A guide pin 38 with a smooth surface is attached to the L-shaped opening of the hook portion 37 in the axial direction of the sleeve 2 .

A clamper 40 having a projection 39 corresponding to the hook 37 at its tip is fitted onto the outer periphery of the tube 16, and a rear portion of the clamper 40 is fitted into the rotation holder 28.

In the clamper 40, a pin 42 standing upright on the tube 16 is engaged with an axially elongated hole 41 formed on the side surface, and a rotary holder 28 is engaged with a similarly axially elongated hole 43 formed on the rear side of the clamper 40.
A pin 44 erected therein is engaged and can be freely displaced only in the axial direction with respect to the tube 16 and the rotating boulder 28. A retainer 45 is attached to the outer periphery of the clamper 40 and is fixed to the pin 42.
A spring 46 is interposed between the retainer 45 and the clamper 40 to bias the clamper 40 to the initial position (the position shown in FIG. 1).

A pressure chamber 4 is provided between the rear part of the clamper 40 and the rotating holder 28.
7 is formed, and the pressure chamber 47 is communicated with four pressurized air supply ports of the stationary holder 30 via a boat 48 formed on the rotating holder 28.

Further, the tip of the pin 42 erected on the tube 16 protrudes toward the sleeve 2 and is engaged with an axially elongated shaft 50 formed on the large diameter portion 13 of the sleeve 2 . The forming value 11 of the length 50 is determined so that the guide groove 12 at the tip of the sleeve 2 is located on the side of the hook 37 of the bush 35.

51-62 and 63 are O-rings and gaskets for sealing each pressure chamber, etc., and 64-66 are bearings.

Note that the motor 4 is mounted on a base 6 provided on the stationary holder 30.
7, and the device is attached to a robot device or the like (not shown) via a base 67.

Next, as an example, when this device is applied to coil terminal processing,
Let's explain its operation. Note that the driving of the motor 4 and the supply of pressurized air to each pressurized air supply port 31, 34, 49 are controlled by a control device or the like in conjunction with a robot device or the like.

First, move this device, hook the wire being unwound from the winding frame, etc. to the hook 37 of the bushing 35, and supply zero pressure air.
A predetermined pressure air is supplied to the pressure chamber 47 through the four. This pressure moves the clamper 40 forward from the state shown in FIG. 1, and the three protrusions press against the hook 37 to clamp the wire. This clamping force can be freely adjusted by adjusting the pressure of the air.

Next, this device is moved to a predetermined position on the center line of the six corresponding terminal pins of the coil boppin 68 as shown in FIG. At this time, if before winding around the coil boppin 68, the wire 70 is wound about half a turn around the coil boppin 68 and then passed through the groove 71 provided on the side surface of the coil boppin 68; if after winding around the coil boppin 68, the wire rod 70 is wound as is. 70 through the loop 71 of the coil boppin 68 and move it to the position shown in FIG. In addition, in the case after winding, the wire rod 70 fed out near the hook portion 37 is cut in advance.

In this state, a predetermined pressure is supplied from the pressure air supply port 34 to the pressure chamber 25, and this pressure causes one slider of the clutch 17 to move forward on the drive 1113 from the state shown in FIG. 2 and Karaage axis 1
is advanced as shown in FIG.

The sleeve 2 and the spindle 1 are the drive shaft 3 and the slider 19.
ml key 20, one slider and joints 23, 22 between 18 and sleeve 2. The joint 8 between the drive shaft 3 and the tie shaft 1 and the pin 42 between the sleeve 2 and the tube 16 allow the wire rod 7 to be advanced integrally without rotation.
o indicates the guide groove 12 of the sleeve 2 and the receiving groove 7 of the shaft 1
and the winding hole 6 and insertion hole 5 of the spindle 1.
When the sleeve 2 reaches a predetermined point U where the six terminal pins enter, the large diameter portion 13 of the sleeve 2 comes into contact with the bushing 35 and stops. At this time, make sure that the sleeve 2 and the tie shaft 1 do not come into contact with the end surface of the coil boppin 68.

Then, in this state, the motor 4 is operated to rotate the drive shaft 3 several rotations (the number of winding turns). This rotation of the drive shaft 3 is
The pin 42 is transmitted directly to the shaft 1 via the joint 8 and to the sleeve 2 via the key 20 and the slider 19. The signal is transmitted to the tube 16, clamper 40, etc. via the signal.

For this reason, the tube 16 and the clamper 40 clamp the shaft 1, the sleeve 2, and the wire 70 with the hook portion 37 at the tip.
The wire rods 70 rotate in the same manner around the six terminal pins, and the wire rod 70 is wound around the six terminal pins as a result of this rotation. In this case, the end of the wire 70 is held between the hooks 37, and
Since the wire 70 is captured around the terminal pin 69 by the sleeve 2 and the shaft 12.7 of the tie shaft 1, the wire 70 is tightly wound around the six terminal pins.

When the predetermined number of turns is wound, the pressure air supply port 3
While the pressure air to 4 is cut off and released, a predetermined pressure air is supplied from the pressure air supply port 31 to the pressure chamber 24 . By switching the air pressure, the slider 19 moves back while the slider 18 remains in the straight position, disconnects from the slider 18, and returns to the position shown in FIG. 1.

That is, by switching the air pressure, only the tie shaft 1 is rotated by the drive shaft 3, and as a result, the wire rod 70 is cut at the edge 7 of the drag shaft 1 and the guide groove 12 of the sleeve 2, and the wire rod 70 is cut. The ends are tightly wrapped around six terminal pins.

When the winding is finished, the motor 4 is stopped at a predetermined position. The rotation of only the shaft 1 for switching the pressure air can be done by half a rotation.Also, at the same time as the motor 4 stops, the pressure air to the pressure chambers 24 and 47 is cut off and released, so that the springs 36 and 46 Karaage shaft 1, sleeve 2
, the slider 18 and the clamper 40 are returned to their initial positions l\ in FIG.

In this way, the wire rod 70 can be tightly wound around the terminal pin 69 without the wire ends protruding outward, and the wire rod 70 can be wound both sides of the sleeve 2 by the rotation of the tie shaft 1. Since cutting is performed at the edges 7 and 12, even a wire rod 70 with a large diameter can be cut accurately.

In addition, the tie shaft 1, sleeve 2, tube 16, and clamper 40 are arranged coaxially, and a clutch 17 fitted to the drive shaft 3 transmits rotation to the sleeve 2 side, and the sleeve 2 and the tie shaft 1 are connected to each other. Since the sliding mechanism is used, the structure is extremely compact and the device can be easily assembled into robot devices, etc. Furthermore, the drive shaft 3 is rotated by the motor 4, and the clutch 17 is operated by air pressure. , accurate operation is obtained and controllability is improved.

Incidentally, as shown in FIGS. 7 and 8, the motor 4 may be attached to the rear of the stationary boulder 30 and directly connected to the drive shaft 3. In this way, a more compact structure can be obtained, and the motor 4 can be attached to the rear part of the stationary boulder 30. The ease of assembly is further improved.

(Effects of the Invention) As described above, according to the present invention, in a lead wire terminal processing device for an electrical component having a terminal pin, there is provided a sleeve having a guide groove for the wire on the side surface of the tip, and a sleeve for the wire on the tip. and a push-in hole for the terminal pin and a receiving groove corresponding to the guide groove on the side surface of the ticket, and a drag shaft that is rotatably inserted into the sleeve, and a drive shaft that rotates the drag shaft from the rear. , a clutch fitted on the drive shaft to push the sleeve and the shaft in the axial direction in response to the supply of pressurized air and transmit rotation of the drive shaft to the sleeve; and a tip of the tube supporting the sleeve. A hook portion is disposed on the guide groove side of the sleeve and rotates together with the sleeve, and a clamper is provided coaxially with the tube and presses against the hook portion according to the supply of pressurized air, so that the lead wire can be connected to the terminal. Even lead wires with a large diameter can be reliably and tightly wrapped around a pin while being easily cut. Moreover, it has a compact structure and can be easily assembled into a robot device or the like.

[Brief explanation of the drawing]

Figures 1 and 2 are a sectional view and a plan view showing an embodiment of the present invention, Figures 3 and 4 are perspective views of the sleeve and clutch section, and perspective views of the tie shaft and drive shaft section. 6 are explanatory diagrams of the operating state, and FIGS. 7 and 8 are a plan view and a perspective view showing other embodiments of the present invention. 1... Karaage shaft, 2... Sleeve, 3... Drive shaft, 4... Motor, 5... Insertion hole, 6... Ticket fee, 7
...Receiving groove, 12...Guide groove, 16...Tube,
17...Clutch, 24.25...Pressure chamber, 37.
...Hook part, 40... Clamper, 47... Pressure chamber. Figure 5 Figure 6

Claims (1)

[Claims] 1. A lead wire terminal processing device for an electrical component having a terminal pin, which includes a sleeve with a wire guide groove formed on the side surface of the tip, a winding hole for the wire at the tip, an insertion hole for the terminal pin, and the guide on the side of the winding hole. A drag shaft that forms a receiving groove corresponding to the groove and is rotatably inserted into the sleeve, a drive shaft that rotates the drag shaft from the rear, and a drive shaft that is fitted into the drive shaft and rotates in response to the supply of pressurized air. A clutch is provided that pushes the sleeve and the tied shaft in the axial direction and transmits the rotation of the drive shaft to the sleeve, and a clutch that is located on the guide groove side of the sleeve at the tip of the tube that supports the sleeve and rotates together with the sleeve. 1. A lead wire end processing device, comprising: a movable hook portion; and a clamper coaxially with the tube that presses against the hook portion in response to supply of pressurized air.