JPH0333417B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a winding device for winding and welding a wire around glass attached to an electrode assembly during assembly of, for example, an electron gun.

[Technical background of the invention and its problems]

An electron gun is composed of an electrode assembly formed by laminating a plurality of electrode plates, and a glass attached to the outside of this electrode assembly.In the final assembly process, the glass is attached to the electrode assembly. It needs to be firmly fixed.

Therefore, in the past, a wire rod was attached to the outer periphery of the glass, both ends of the wire rod were fixed to the electrode assembly, and both were gripped and fixed by the wire rod, but since these items are small, the wire rod A short length is used. Therefore, even if wire rods that have been cut to a predetermined length are to be fed to the wire forming section using a parts feeder or a magazine, the wire rods will become entangled with each other, making it difficult to feed the wire rods in an aligned state. Furthermore, it is difficult to automate the wire forming section, which supports and forms short wire rods, and conventionally, wire rods of the specified size are manually wound around the outer periphery of the glass and resistance welded. and is fixed to the electrode assembly.

As a result, work efficiency is extremely poor, and since the shape of the glass is not standardized, it is impossible to grip it in close contact with the wire, resulting in a decline in quality and a lack of reliability. be.

[Purpose of the invention]

This invention enables the formed wire to be reliably checked with a simple structure before being supplied to the member to be wound, and also enables easy winding when the formed wire is supplied to the member to be wound. The purpose of this project is to provide an attached device.

[Summary of the invention]

A molding upper mold is provided to be able to move up and down with respect to a molding lower mold on which a long wire rod wound into a coil is placed, and a cutter for cutting the wire material to a predetermined length is provided on this molding upper mold. At the same time, the wire rod is formed into a substantially U-shape, the formed wire rod is held in the upper molding mold and gripped onto the article to be fixed, and both ends of the wire rod are pushed inwardly from each other with the auxiliary molding mold. This allows for automatic bending and welding.

[Embodiments of the invention]

The present invention will be described below based on an embodiment shown in the drawings.

FIG. 1 is a schematic diagram of the entire winding device of this embodiment, in which 1 is a wire supply section, 2 is a wire cutting and forming section, 3 is a driving section for this wire cutting and forming section 2, and 4 is an article holding section. It is. To explain the wire rod supply section 1, 5 is a spool, and a long wire rod 6 is wound around the spool 5 in a coil shape. On the feeding side of this spool 5, there is a strainer unit 7,
A gripper feeder 8 is provided, and when the gripper feeder 8 is moved forward by a feed lever 9, it supplies the wire 6 to the wire cutting and forming section 2 in predetermined lengths. Next, the wire cutting and forming section 2
The drive unit 3 will be explained based on FIGS. 2 to 5. That is, 10 is a base, and guide rods 11, 11 are pivotally supported on this base 10 so as to be slidable in the front and rear directions. A forming head 12, which will be described later, is attached to the front end of the guide rods 11, 11, and a control block 13 is attached to the rear end. A tension spring 14 is tensioned between the control block 13 and the base 10, and biases the molding head 12 in the forward direction. Further, the head body 15 of the forming head 12 is provided with a guide cylinder 16 in the vertical direction, and a first slider 17 is inserted into the guide cylinder 16 so as to be vertically movable. A second slider 18 is inserted into the first slider 17 so as to be vertically movable, and a third slider 19 is further inserted into the second slider 18 so as to be vertically movable. Then, the first slider 17
The second slider 18 is urged downwardly against the guide cylinder 16 by a spring 20, and the second slider 18 is urged downwardly against the guide cylinder 16 by a second spring 21. Further, the stroke of the second slider 18 is restricted with respect to the first slider 17 by the pin 17a and the elongated hole 18a,
The slider 19 is biased downward with respect to the first slider 17 by a third spring 22 provided in the elongated hole 19a. Moreover, a pin 19b is provided on the third slider 19 in a protruding manner, and this pin 19b engages with the elongated hole 18b of the second slider 18 to restrict the stroke. Therefore, the first, second and third sliders 17, 18, 19
are constructed so that they can slide independently. Further, a pair of first forming claws 23, 23 facing each other are integrally provided at the lower end of the first slider 17, and at the lower ends of these first forming claws 23, 23, a V groove 24 for sandwiching the wire rod 6, 24 is formed. Further, among these first forming claws 23, 23, the first forming claw 23 on the wire rod supply section 1 side is provided with an upper blade 26 facing the lower blade 25, forming a cutter 27 for cutting the wire rod 6 into a predetermined length. are doing. Also,
A pair of second shaping claws 28, 28 facing each other are integrally provided at the lower end of the second slider 18. These second shaping claws 28, 28 are located inside the first shaping claws 23, 23, and their lower ends are connected to the V
They are formed on inclined surfaces 30, 30 having cutout grooves 29, 29 facing the grooves 24, 24. and,
These first forming claws 23, 23, second forming claws 28,
A molding upper mold 32 is constructed in which a molding part 31 consisting of a recessed part whose lower part is opened by a molding part 28 is formed. Moreover, the inner surface of the molded part 31 becomes narrower as it approaches the lower end opening.
It is formed at an inclination angle θ of 5°. Furthermore, the lower end of the third slider 19 is formed as a wire holding part 33, which protrudes into the wire holding part 31 between the second forming claws 28, 28, and forms a part of the upper mold 32. Furthermore, a lower molding mold 34 is fixedly provided on the front surface of the base 10 below the upper molding mold 32 configured as described above. This lower molding mold 34 is formed to be slightly narrower than the space between the first molding claws 23 and 23 of the upper molding mold 32, and has a convex portion 3 facing the second molding claws 28, 28 on its upper surface.
4a, 34a, recessed portion 3 facing wire rod holding portion 33
4b is formed. And this molding lower mold 3
A wire rod 6 is supplied and placed on the upper surface of the wire rod 4 from the lateral direction. On the other hand, the first slider 17
Rollers 37 and 38 are provided at the upper end of the second slider 18 to protrude left and right through holders 35 and 36, respectively. Furthermore, a first parallel link mechanism 39 and a second parallel link mechanism 40 each having a cam 39a are provided on both sides of the base 10. And the first parallel link mechanism 39
The lever 41 is the roller 3 on the first slider 17 side.
7, the lever 42 of the second parallel link mechanism 40 faces the lower part of the roller 38 on the second slider 18 side, and
18 can be selectively pushed up. Further, a mounting plate 43 is attached to the head body 15 of the molding head 12, and a pair of cylinders 44, 44 are attached to the left and right sides of this mounting plate 43. These cylinders 44, 44 are located vertically, and the lower ends of the rods 45, 45 are provided with auxiliary molding 4 through holders 46, 46.
7,47 are provided. These auxiliary molding 4
7 and 47 are plate-shaped and inclined inward from both sides, so that both ends of the wire rod 6 attached to the member to be wound, which will be described later, are bent inwardly. That is, 48 is a member to be wrapped, such as an electron gun, which is chucked to the article holding part 4, and this includes a first article 49 made of an electrode assembly, a second article 50 made of glass fixed on both sides of the first article 49, 50, the wire rod 6 is attached to the outer periphery of the second article 50, and both ends thereof are welded to the first article 49. Laser optical systems 52, 52 as welding means are installed at the welded parts 51, 51 of the first article 49, and are adapted to irradiate the welded parts 51, 51 with laser beams 53, 53.

Next, the operation of the wire rod automatic supply welding apparatus constructed as described above will be explained based on FIG. 6.

First, FIG. 1 shows a state in which the lever 41 of the first parallel link mechanism 39 is raised, and the first slider 17 is raised via the roller 37 against the first spring 20. At this time, the second slider 18
is engaged with the pin 17a, so it is pulled up together with the first slider 17. 3rd slider 1
9 is urged downward by the third spring 22, but since the second slider 18 has been pulled up, it is similarly pulled up by the pin 19b. Therefore, the first, second, and third sliders 17, 18, and 19 are integrally in the raised position,
The upper mold 32 is separated from the lower mold 34. In this state, when the feed lever 9 rotates, the gripper feeder 8 moves forward, and the wire 6 wound around the spool 5 is fed by a fixed length, and its tip is placed on the upper surface of the lower mold 34. . Next, when the first parallel link mechanism 39 descends, the first slider 17 descends due to the restoring force of the first spring 20, and first, the wire holding part 33 of the third slider 19 34. Therefore, as shown in FIG. 6B, the wire rod 6 on the lower mold 34 is pressed down from above by the restoring force of the third spring 22, and then the first parallel link mechanism 39 is further pressed down. When descending, the roller 37 is pushed down by the cam 39a, and the first slider 17 further descends. Therefore, the upper blade 26 provided on the first shaping claw 23 slides with the lower blade 25 to cut the wire 6 into a predetermined length. The cut wire 6 is guided to the V grooves 24, 24 of the first forming claws 23, 23, and when the first forming claws 23, 23 fit into the lower mold 34, the wire 6 is molded into the upper mold 32. Lower mold 3
4, it is bent into a substantially U-shape. Next, when the lever 42 of the second parallel link mechanism 40 rises and the second slider 18 rises through the roller 38 against the second spring 21, the third slider 19 moves through the pin 19b. is raised, and then the first slider 17 is raised via the pin 17a. Therefore, as shown in FIG. 6C, the wire 6 molded in the molding part 31 of the upper mold 32 rises and leaves the lower mold 34 while being held. At this time, the wire rod 6 is in pressure contact with the inner surfaces of the first forming claws 23, 23 due to the elastic restoring force, and since the inner surfaces are formed at an inclination angle θ of 3 to 5 degrees, the wire rod 6 is It is chucked without falling from the mold 32. When the wire rod forming is completed in this way, the control block 13
The restraining force is released, and the guide rods 11, 11 move forward by the restoring force of the tension spring 14. Accordingly, the molding head 12 moves forward, and the upper molding mold 32 leaves the lower molding mold 34 and faces the upper surface of the wrapped member 48 chucked on the article holding part 4. In this state, when the lever 42 of the second parallel link mechanism 40 is lowered, the first slider 17 is lowered by the first spring 20 and the second slider 18 is lowered by the second spring 21. Therefore, the wire pressing part 33 of the third slider 19 pushes out the wire 6 from its forming part 31 and presses it against the upper surface of the second article 50. Continuing, the second molded claws 28, 28
When the wire rod 6 is pressed against the second article 50, the wire rod 6 is tightly bent and formed along the outer periphery of the second article 50. Therefore, as shown in FIG. 6D, the wire 6 is fitted into the second article 50, and both ends thereof are extended to the first article 49 by the second forming claws 28, 28. . When the attachment of the wire rod 6 to the second article 50 is completed in this way, the first
When the lever 41 of the parallel link mechanism 39 is raised and the first forming claws 23, 23 are separated from the wire 6, the cylinders 44, 44 are activated and the rods 45, 45 are lowered. Therefore, the auxiliary molds 47, 47 press both ends of the wire 6 inwardly from both sides, giving plastic deformation to both ends of the wire 6. With both ends of the wire 6 joined to the first article 49 in this way, the laser optical systems 52 and 5 are connected as shown in FIG. 6E.
Laser beams 53, 5 are applied to the welding parts 51, 51 from 2
3, both ends of the wire 6 are exposed to the first article 49
The second article 50 is fixed by welding to the second article 50 by the wire 6.
is gripped and fixed to the first article 49.
After one of the second articles 50 is fixed to the first article 49 in this manner, the article holding section 4 is counter-rotated and the other second article 50 is turned upward in the same manner as described above. It can be fixed by means of.

〔Effect of the invention〕

This invention has the following special effects.
That is, a long wire can be cut into a predetermined length, the wire can be shaped, and the wire can be automatically attached and welded to an article to be fixed, thereby improving work efficiency. In addition, after the wire rod formed by the upper mold and the lower mold is attached to the article, both ends of the wire are bent inwardly by the auxiliary mold, so that both ends of the wire rod are attached to the article. Since it is possible to reliably join and weld the article, it is possible to securely fix the article and improve reliability compared to conventional manual work. moreover,
Since the molded wire rod is held in the upper mold by its own elastic restoring force, the molded wire rod will not fall and can be reliably attached to the article.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the entire device showing an embodiment of the present invention, Fig. 2 is a front view of the wire cutting and forming section, Fig. 3 is a side view of Fig. 2, and Fig. 4 is an exploded view of the main parts. A perspective view, Figure 5 is an enlarged front view of the main parts, Figure 6 is
Figures A to E are front views for explaining the function of the molding section. 1: Wire rod supply section (wire rod supply means), 4: Article holding section (holding means), 6: Wire rod, 32: Upper mold (second molding means), 34: Lower mold (first molding means) , 47: Auxiliary mold (third molding means), 5
2: Laser optical system (welding means).

Claims (1)

[Claims] 1. A winding device characterized by having the following configuration. (a) Consists of a first article and a second article attached to the first article, the first article and the second article attached to the first article.
A holding means for holding a wrapped body having a recess formed at the boundary with the article and around which a fixed length of wire is wound. (b) Wire supply means for supplying the wire to be wound around the body held by the holding means. (c) A first forming means on which the wire supplied from the wire supply means is placed. (d) A cutter that is movable up and down with respect to the first forming means and that cuts the wire placed on the first forming means into a certain length when moving; It has a forming part that forms a substantially U-shaped formed wire along the forming means 1, and the forming part has a narrow width at the open end side, so that the forming wire can be shaped by the elastic restoring force of the forming wire itself. a second forming means for holding and applying the held formed wire to the outer surface of the second article; (E) A third forming means for bending both ends of the formed wire attached to the outer surface of the second article toward the recess by the second forming means and joining them to the first article. (f) Welding means for welding the shaped wire to the first article by irradiating both ends of the shaped wire joined to the first article with a laser beam.