JP4157665B2 - Drum core delivery jig - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drum core delivery jig that winds a wire around its body.
[0002]
[Prior art]
When winding a wire around a conventional drum core, if the drum core is transferred from the drum core holding jig that chucks the base of the drum core to the collet chuck provided on the spindle that rotates the drum core, the drum core holding jig In the state where the base portion is chucked by the above, the flange portion of the drum core portion is chucked by the collet chuck and the delivery is performed.
[0003]
[Problems to be solved by the invention]
However, in such a case, during delivery, the drum core is temporarily held by both the drum core holding jig and the collet chuck. The member to be held (that is, the drum core) and the collet chuck held by the drum core holding jig are coaxially arranged, but the center line of the drum core base part and the collar part may be eccentric in the manufacturing process. is there. If the drum core with the eccentricity is chucked simultaneously with the drum core holding jig and the collet chuck, there is a problem that an external force is generated in the drum core due to the eccentricity of the drum core and the flange portion is cracked.
[0004]
An object of this invention is to provide the delivery jig | tool of a drum core which solves such a problem.
[0005]
[Means for Solving the Problems]
A first aspect of the present invention is a drum core transfer jig for transferring a drum core having a winding drum portion for accommodating a wire rod and a terminal portion for connecting the wire rod to a chuck at the tip of a rotating spindle. And a magnet for fixing the drum core to the receiving portion with a magnetic force.
[0006]
According to a second invention, in the first invention, a convex portion is provided on an end surface of the receiving portion facing the flange portion provided on the spindle side of the drum core winding drum portion, and the flange portion is brought into close contact with the chuck by the convex portion. Since the collar is pushed, the perpendicularity of the collar with respect to the central axis of the chuck is corrected.
[0007]
Operation and effect of the invention
In the first invention, since the drum core is not only placed on the receiving portion of the transfer jig, but also fixed by the magnet, it can be prevented from coming off when the drum core is transferred to the spindle. Also, when the drum core is gripped by the chuck at the tip of the spindle, even if the center axis of the drum core collar and the center axis of the winding drum are misaligned, the terminal is only fixed by the magnetic force of the magnet, so the drum core can be easily transferred It can be transferred to the spindle without detaching from the jig and damaging the drum core.
[0008]
In the second invention, a convex part is provided on the end surface of the receiving part facing the collar part provided on the spindle side of the winding drum part, and the perpendicular part of the collar part with respect to the central axis of the chuck is corrected by pressing the collar part. Even if the collar portion is inclined with respect to the direction perpendicular to the central axis of the chuck, it is corrected and gripped by the chuck of the spindle, so that the holding posture is stabilized.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0010]
In FIG. 1, the outline | summary of the delivery jig | tool of the drum core of embodiment of this invention is shown.
[0011]
The delivery jig of the present invention comprises a holding jig 1 having a receiving part 3 for placing the drum core 2 sent from the previous process and a magnet 4 for fixing the drum core 2 placed on the receiving part 3. Prepare. When the drum core 2 placed on the receiving portion 3 is transferred to the spindle portion 27 having the collet chuck 20, the transfer of the drum core 2 is completed.
[0012]
Next, the holding jig 1 for holding the drum core 2 will be described in detail with reference to FIGS.
[0013]
The drum core 2 includes a cylindrical winding drum portion 6 around which a wire is wound, and a flange portion 9 that is concentric with the winding drum portion 6 and has a large diameter is provided on the spindle side (left side in FIG. 2) of the winding drum portion 6 with a predetermined thickness. It is provided with a height. A base portion 7 is formed on the right side of the winding drum portion 6 with a diameter larger than that of the winding drum portion 6. A plurality of terminals 8 (three on the upper side and two on the lower side in the present embodiment, a total of five) are provided in parallel from the base portion 7 toward the inner side in the axial direction (the direction opposite to the spindle). Magnets 4 are respectively provided in the holding jig 1 so as to hold the terminals 8 below the lower terminals 8 and are in close contact with the terminals 8 when the drum core 2 is placed. keeping.
[0014]
The winding drum portion 6 of the drum core 2 is placed on the receiving portion 3 of the holding device 1 in which the concave portion 10 is formed so as to correspond to the outer shape of the cylindrical winding drum portion 6.
[0015]
Accordingly, the drum core 2 is supported by the holding jig 1 by the three points of the receiving portion 3 and the magnet 4, and the center line thereof is set to be on the same line as the center line of the collet chuck 20.
[0016]
In the present embodiment, the winding body 6 is cylindrical, but is not limited thereto, and may be a polygonal shape such as a quadrangle. Further, the terminal 8 of the drum core 2 is fixed by the magnet 4, and the drum core 2 is fixed to the holding jig 1. However, the drum core 2 is not caught by this. For example, the receiving portion 3 is provided with the magnet 4 to fix the core of the drum core. It can also serve as the receiving part 3.
[0017]
Next, the spindle part 27 that delivers the drum core 2 from the holding jig 1 will be described. As shown in FIG. 1, the spindle portion 27 is installed so as to face the flange portion 9 of the drum core 2, and is provided so that the central axis of the collet chuck 20 is on the same axis as the central axis of the drum core 2. Yes. The diameter of the concave portion 24 of the collet chuck 20 is changed by the movement of the claw 22 of the spindle portion 27 and is larger than the outer diameter of the flange portion 9 when opened, and has a dimension for gripping the outer periphery of the flange portion 9 when closed. Configured as follows.
[0018]
The collet chuck 20 pulls its pawl 22 with the air cylinder arm 34 shown in FIG. 5 so that the concave portion 24 of the collet chuck 20 opens along the inclined surface 26 and grips the outer diameter of the collar 9. In this state, the concave portion 24 covers the outer periphery of the flange portion 9, and the collet chuck 20 is returned to the initial position by the spring 25, whereby the concave portion 24 is closed and the flange portion 9 is gripped from the outer peripheral side.
[0019]
In FIG. 1, the holding jig 1 and the spindle portion 27 are separated from each other in the axial direction. However, the spindle portion 27 is moved in the axial direction so that the hook portion 9 is in contact with the receiving surface 21 of the collect chuck when gripping. Moving. Further, since the drum core 2 cannot move in the axial direction in the gripped state (the drum core 2 has a base 9 and a base having a diameter larger than that of the winding drum portion 6 at both ends of the winding drum portion 6 placed on the receiving portion 3. Since the part 7 is provided), the spindle part 27 is moved in the vertical direction so that the drum core 2 can be moved in the axial direction, and the delivery to the spindle part 27 is completed.
[0020]
Further, as shown in FIGS. 2 to 4, the convex portion 5 is provided on the end surface 3 a on the spindle side of the receiving portion 3 so as to contact the end surface 9 a of the flange portion 9 of the drum core 2. Two convex portions 5 are provided horizontally across the center of the winding drum portion 6 of the drum core 2.
[0021]
The contact surface 5a with the end surface 9a of the flange portion 9 of the convex portion 5 forms a right angle with respect to the central axis of the drum core 2, and each is provided on the same plane. Accordingly, the convex portion 5 of the receiving portion 3 pushes the end surface 9 a of the flange portion 9 of the drum core 2 and inserts it into the concave portion 24 of the collet chuck 20, so that the end surface 9 b on the spindle side of the flange portion 9 of the drum core 2 becomes the collet chuck 20. It adheres closely to the receiving surface 21.
[0022]
Next, the operation will be described.
[0023]
The drum core 2 sent from the previous stroke is placed on the receiving portion 3 of the holding jig 1, and its terminal 8 is held by the magnet 4 provided on the holding jig 1. Therefore, even when the center axis of the flange portion 9 of the drum core 2 held by the collet chuck 20 and the center axis of the winding drum portion 6, for example, are shifted when sent to the next stroke, the drum core 2 held by the collet chuck 20 Can be easily detached from the magnet 4 because the holding jig 1 is only held by the magnetic force of the magnet 4. Therefore, damage to the flange 9 of the drum core 2 due to simultaneous gripping of the collet chuck 20 and the holding jig 1 can be prevented.
[0024]
Further, when the end surface 9 b of the flange portion 9 is pressed against the receiving surface 21 of the collet chuck 20, the end surface 3 a on the spindle side of the receiving portion 3 of the holding jig 1 is pressed against the end surface 9 a of the flange portion 9 of the drum core 2 over the entire surface. If the angle of the end surface 9a of the flange 9 is slightly inclined with respect to the axis perpendicular to the end surface 9b, the opposite end surface 9b is inclined to contact with the receiving surface 21 of the collet chuck 20, and is attached while being inclined. May be.
[0025]
However, in the present invention, the convex portion 5 is provided on the spindle-side end surface 3 a of the receiving portion 3 of the holding jig 1, and the end surface 9 b of the flange portion 9 is in close contact with the receiving surface 21 of the collet chuck 20 by the end surface 5 a of the convex portion 5. The end surface 9a of the collar 9 is pushed so that Accordingly, the inclination of the end surface 9b of the flange portion 9 can be absorbed, and the end surface 9b of the flange portion 9 can be brought into close contact with the receiving surface 21 of the collet chuck 20 so that the drum core 2 can be gripped. Can be stabilized.
[0026]
FIG. 5 shows the overall configuration of the drum core delivery process, which will be described.
[0027]
First, the spindle portion 27 provided with the collet chuck 20 is fixed to a table 30 that can be moved in three axial directions by each drive motor (40, 41, etc.) via a winding head. The collet chuck 20 is connected to a spindle 31 and can be rotated by a spindle motor 32.
[0028]
An open / close cylinder 33 for opening / closing the collet chuck 20 is provided on the winding head 28. The open / close chuck cylinder 33 is configured so that the collet chuck 20 is opened by pulling the claw 22 of the collet chuck 20 to the spindle side by an arm 34 that expands and contracts. In order to close the collet chuck 20, the arm 34 is removed from the claw 22, and the collet chuck 20 returns to the initial position by the biasing force of the spring 25 built in the collet chuck 20 toward the drum core, thereby closing the collet chuck 20. To do.
[0029]
On the other hand, the drum core 2 is placed on the pallet 35 while being fixed to the holding jig 1, and is carried to a predetermined position by the belt 37 of the conveyor 36. The predetermined position is defined by a stopper 38 provided on the side of the belt 37. By stopping at the predetermined position, the central axis of the drum core 2 and the central axis of the collet chuck 20 are controlled to be on the same axis. .
[0030]
From this state, the table 30 moves in the direction of the drum head 2 to move the collet chuck 20 to a predetermined position where the drum head 2 can be gripped, and the collet chuck 20 opens. Thereafter, as described above, the collet chuck 20 grips the drum core 2, the table 30 returns to the initial position, and the delivery of the drum core 2 is completed.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an embodiment of the present invention.
FIG. 2 is a plan view of the holding jig of the present invention.
FIG. 3 is a side view of the holding jig of the present invention.
FIG. 4 is a front view of the holding jig of the present invention.
FIG. 5 is an overall view of a drum core delivery process of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Holding jig 2 Drum core 3 Receiving part 4 Magnet 5 Convex part 6 Winding trunk part 7 Base part 8 Terminal 9 Gutter part

Claims (2)

In a drum core delivery jig for delivering a drum core having a winding drum portion for accommodating a wire rod and a terminal portion for connecting the wire rod to a chuck at the tip of a rotating spindle,
A receiving portion for placing the drum core winding drum portion;
A drum core delivery jig comprising a drum core and a magnet fixed to the receiving portion by magnetic force. A protrusion is provided on an end surface of the receiving portion facing the flange provided on the spindle side of the drum core winding drum, and the flange is pressed to correct the perpendicularity of the flange with respect to the central axis of the chuck. Item 4. A drum core delivery jig according to Item 1.

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