JPS61285707A - Winding equipment for toroidal core - Google Patents

Abstract

PURPOSE:To make it possible to set automatically the top position of wire with high reliability at the time of inserting the wire into the core hole, by applying the operation mechanism of two couples of gripper which is provided with the guide part for positioning of wire and is capable of horizontal traveling and of revolution. CONSTITUTION:The gripper base 32 is made to travel along the rail 31. The gripper base 34 is fixed on the revolving shaft 33 which is supported by the gripper base 32 so as to revolve freely and driven by the servomotor. On its right side and left side, one couple of grippers 37A, 37B and the other couple of grippers 38A, 38B are installed, respectively. These two couples of grippers 37A, 37B and 38A, 38B are constituted so as to be able to travel forward and backward, open and close independently of each other, and to revolve as an integral body. The guide parts 39A, 39B, 40A and 40B for positioning of wire are installed at the tip parts of each gripper 37A, 37B, 38A and 38B, that is, the near portions to the wire holding parts, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a winding device suitable for automatic toroidal winding of magnetic heads such as magnetic disks and VTRs.

[Background of the Invention] Conventionally, a method for automatically winding a minute toroidal coil such as a magnetic head is disclosed in Japanese Patent Application Laid-open No. 56-1488.
There is one described in Publication No. 12. In this method,
Using the device shown in factor 6 in the same publication, winding is performed according to the procedure shown in FIGS. 9 to 15.

However, in the above-mentioned device, the chuck arm and the gripper arm are each driven by their own means, so when receiving and receiving the wire after inserting the wire, the two arms are positioned individually. It is impossible to avoid vibrations in the vicinity of the power point independently and mechanically or in a controlled manner.

Therefore, when both arms grip the wire at the same time in order to receive and receive the wire, the wire is deformed in the gripped portion in the direction in which it is stretched and in a direction perpendicular to the direction. As a result, the wire loses its bending in the portion beyond the gripper arm. By continuing to wind the wire and repeating the receiving and receiving of the wire, the above-mentioned curves accumulate at the tip of the wire and exceed the allowable value, so the gripping position of the wire is kept constant. There is a problem that even if the wire is positioned correctly, it becomes impossible to insert the wire.

As a countermeasure to solve the above problem, as shown in Fig. M6, the clamp unit A1 tension unit 31 e
proposed a toroidal core winding device consisting of a gripper unit C' and a gripper unit C'.

The above flanging unit A is powered by a servo motor (not shown)
a shaft 12 which is connected to the TABO motor and rotatably supported by the table 11; a clamper 13 provided at the tip of the shaft 12 and serving as a means for holding the core 41; Wire rod retainer 14 is supported at the tip of wire rod 12 so as to be movable in the axial and radial directions.
and a solenoid (not shown) that drives the wire rod holder 14.
It consists of.

fm Note f 7 Shigeru unit) B,, B2u, Core 51
In the wire insertion direction X-XVc into the hole (not shown),
They are installed on both sides of the clang units) A. In addition, the tension units Bl and B2 are connected to the stand 21 and the stand 2.
1, a moving table 22 supported so as to be movable in the direction Y-YK intersecting with ) and a long guide groove 24 in the X-X direction,
and a tensilan base 23 supported by the movable table 22.
, a tension lamp 25 attached to the i-base 23 and movable along the guide #I 24, and a servo motor (not shown) that drives the tension lamp 25 in the 1'-Y direction. .

The gripper unit c' is installed at a position facing the clamp unit A in the XX direction. Ninth, the gripper unit c/ includes a long rail 31 in the X-X direction, a gripper base 32 placed on the rail 31, and a servo motor (not shown) that moves the base 32 along the rail 31. A rotating shaft 33 rotatably supported by the gripper base 32, a servo motor (not shown) for driving the rotating shaft 33, and a gripper stand 34 attached to the rotating shaft 33. , two sets of grippers 55.36 arranged in parallel at intervals in the X-X direction on the gripper stand 34, a drive source for independently opening and closing each set of grippers 35.36, and a drive source for independently opening and closing each set of grippers 35.36; It consists of a drive source (both not shown) for sliding in the XX direction.

In the gripper unit C', two sets of grippers 55.
56 to move forward, backward, open and close independently, and rotate both sets of grippers 35 and 56 together.Pass the button and insert the tip of the wire 61 into the hole 52 of the core 51 (see Figure 7). and withdrawals can be made. According to such means, as shown in FIG.
．． Since it is not possible to position the wire 61 in the forward and backward directions, if the winding is continued and the wire is received and received repeatedly, the positional deviation of the wire 61 will gradually increase and exceed the limit value. Therefore, there was a problem that it became impossible to insert the wire rod 61 into the core hole 52.

[Object of the Invention] The object of the present invention is to solve the problems of the prior art as described above, and to prevent the deformation of the tip of the wire rod during winding and the displacement of the gripping position of the wire rod by a simple means. That is.

[Summary of the Invention] In order to achieve the above object, the present invention provides a toroidal core winding device comprising a known flang unit, a tensile unit, and a gripper unit, and a gripping mechanism constituting the gripper unit. It has 2 grippers, each set of grippers is provided with a button that can independently advance, retreat, and open/close, and the two sets of grippers are configured to rotate as a unit, and each gripper has a button near the wire gripping part. A feature is that a guide section for positioning the 1c wire rod is provided.

[Embodiments of the invention] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the main part (gripper unit) of this embodiment. 31 is a rail, 52/d is a gripper base placed on the rail 31, and the base 3
2 is moved along the rail 311C by a servo motor (not shown). 33 is a rotating shaft rotatably supported by the gripper base 32 and driven by a servo motor (not shown); 34 is a gripper stand attached to the rotating shaft 33; on the right side of the gripper stand 34 is a set of grips; , Pa 37A.

37B, and a pair of grippers 38A and 38B are provided on the left side, respectively.

The two sets of grippers 37A, 37B and 38A.

38B is configured to be able to move forward, retreat, open and close independently by means of an air cylinder (not shown), and has two sets of grippers 37A.

57B, 38A, and 38B are configured to rotate as a unit. Each gripper 571.37B, 3
8A.

At the tip end of 38B, that is, near the wire gripping part, there are wire positioning guide parts 39A, 39B, 40A,
40B are provided respectively in the guide section! ? A,
iB is formed in the shape of a button as shown in FIG. 2(a-). The guide parts 40A and 40B are also 59 and 59B.
It is also formed in a V-shape.

When the wire rod 61 is gripped by the grippers 37A and 57B as shown in FIG. 2(b), both grippers 37A,
When 37B is moved inward as shown by the arrow, the wire 6
1 is a guide portion 39A for both grippers 57 and 57B.

39B, the guide portions 59A, 5
It moves to the central part of 9B, that is, the deep part of the V shape, and is positioned and grasped at a certain position.

Although the guide portions 59A and 39BFi are formed in a V-shape, as shown in FIG.
B may be formed into a right triangle with both slopes facing each other.

Clamp unit h other than the above-mentioned gripper unit) C
spxo: Tensile cover unit B, , B, #: t:, Since it has a structure similar to that of the prior art shown in FIG. 1, its drawing and explanation will be omitted.

Next, the winding operation in the above embodiment is shown in Fig. 4(a) to (f).
) will be explained.

Figure 1 (a) shows the state before the wire rod 61 is inserted into the hole 52 of the core 51, and one end of the wire rod 61 is inserted into the core 51.
It is toroidally wound around the other end, and the other end is gripped by the back of the handle. Further, a tension and a nape 25 are installed at the intermediate position of the wire 61, and winding is performed from this state in the following manner.

(+) From the state shown in FIG. 4(a), move the gripper stand 34 in the wire insertion direction (X-X direction) in a direction approaching the core 51, and insert the tip of the wire 61 to the middle of the core hole 52. do.

(II) From the above state, as shown in FIG. 4(b), open the gripper 37t, and then move the gripper 57 to
It is made to retreat in the direction away from the wire 61 in the direction intersecting the X direction (Y-Y direction).

(1) Then, while holding the other end of the wire 61 only with the gripper 38, the gripper stand 34 is further moved along the
direction, the wire rod 61 is inserted into the core hole 52 as shown in FIG. 4(C), and the tip of the wire rod 61 is completely penetrated to the opposite side of the core hole 52. In this state, the gripper 37 is closed to grip the tip of the wire 61, and at the same time the other gripper 58 is opened, and then the gripper 37 is retreated in a direction away from the wire 61.

(tV) Next, as shown in FIG. 4(d) K, the gripper stand 34 is further moved in the X-X direction, advanced to a position where the gripper 38 passes through the core 51, and the gripper 38 is closed again. The wire rod 61 is held. This situation JI
, the tensioner 25 is moved in the direction approaching the core 51 using the X-X direction button, and after retracting the tensioner 25 in the direction away from the wire 61 at the position approaching the core 51, the tensioner 25 is moved The wire rod 61
Remove from.

(Next, as shown in FIG. 4(e), the gripper stand 34 is further moved in the direction away from the busy core 51,
After the gripper stand 34 passes the position of the tensioner bar 25', the tensioner 25' is advanced in the direction approaching the wire 61, the gripper stand 34 is rotated from the broken line position to the solid line position, and the wire 51 is moved to the tensioner bar 25'. Hook it on 25'.

(vl) Next, as shown in FIG. 4(f), the tensioner 25' is moved in a direction away from the core 51 to apply tension to the wire 61 wound around the core 51. Thereafter, the shaft of the clamp unit (not shown) is rotated to reverse the core 51 from the broken line position to the solid line position,
The core 51 is made to correspond to the grippers 37, 38. In this state, preparations are made to insert the tip of the wire rod 61 into the core hole 52 again.

By repeating the above operations one after another, ;751
can be continuously wound. In this case, the wire 61
/rr, the guide portion 39 or 40 of the gripper 37.38 positions the wire rod 61 with sufficient accuracy in the forward and backward directions of the gripper 37.38, so that the wire rod 61 can be easily rotated between the gripper and the gripper 37.38. There is no possibility that the positional deviation of the wire rod 61 will be accumulated due to the return transfer. Therefore, the variation in the position of the wire rod is kept below a certain value, so that the positional accuracy necessary for inserting the tip of the wire rod into the core can be ensured, and the winding work can be repeatedly performed with high stability.

FIG. 5 is a perspective view showing another embodiment, which includes a non-rotatable rung unit) D, a gripper unit E having the same structure as the gripper unit C in FIG. 1, and the gripper unit H. It is composed of a set of tensions, which are supported so as to be able to rotate in conjunction with each other. Among the symbols shown in FIG. 5, the same symbols as those shown in FIGS. 1 and 4@ indicate the same or corresponding parts.

The operation of the above embodiment (FIG. 5) is almost the same as the procedure described in FIG. The only difference is that the tip of the wire 61 is brought to the insertion position of the core 51. In this embodiment as well, the same effects as in the previous embodiment can be obtained.

[Effects of the Invention J As explained above, according to the present invention, by preventing the deformation of the tip of the wire during winding and the displacement of the gripping position of the wire by the gripper, the wire can be easily inserted into the core hole. The tip position can be determined with good reproducibility. Therefore, it is possible to improve the reliability of threading the wire and to perform automatic winding using a winding device with a simple structure.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the essential parts of an embodiment of the winding device according to the present invention, FIGS. 2(a) and 2(b) are explanatory views showing the gripper in FIG. a) (b) is an explanatory diagram showing the open and closed state of a modified example of the gripper, 4th rgl (a)
~(f) is an explanatory diagram of the operation of the winding device according to the present invention, No. 5
The figure is a perspective view showing another embodiment of the winding device according to the present invention, FIG. 6 is a perspective view showing a prior art winding device, and FIG. 7 is a gripping operation of the wire rod in the winding device of FIG. 6. FIG. A...Flang unit, B1%B2...Tension unit, C...Guri, Pa unit, 37A, 3
7B, 38A. 38B...Gripper, 39A, 39B, 40A,
40B, 41A, 41B...Guidance section, 51...
- Core, 52... Core hole, 61... Wire rod. "f

Claims (1)

[Claims] a clamp unit that rotates one end of the wire and a means for holding the core to invert the core; a gripping mechanism that grips the other end of the wire and slides the wire into the core hole; In the toroidal core winding device, which includes a gripper unit that rotates to wind the wire around the core, and a tension unit that applies tension to the wire during winding, the gripping mechanism has two sets of grippers, each of which The grippers are provided so that they can move forward, backward, and open/close independently, the two sets of grippers are configured to rotate as a unit, and a guide section for positioning the wire rod is provided near the wire gripping portion of each gripper. A special toroidal core winding device.