JP3243592B2 - Component loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ring member having an annular shape and brittleness, which is inserted into a center hole of a pellet member having a cylindrical protrusion. The present invention relates to a member loading device that manufactures a composite member used for a magnetron device or the like by being loaded.

[0002]

2. Description of the Related Art FIG. 7 shows an example of a composite member to be manufactured. In FIG. 7, a composite member 500 includes a pellet 501 that is a relatively hard and sticky and strong pellet member such as a molybdenum sintered body and a ring 502 that is a brittle ring member such as a molybdenum compact. ing. The pellet 501 has an umbrella 501a having a dish shape (for example, the outer diameter _D501 is 10.0 mm) and a cylindrical projection 501b (for example, having an outer diameter _d501b of 4.10) protruding at the center of the umbrella 501a. 9 mm) and the inner surface of the umbrella 501a (for example, its diameter d
_501a includes 6.6 mm) and an accommodating portion 501c defined by the outer surface of the protrusion 501b. Ring 502
Is a thin (eg, thickness t is 0.2 mm) ring-shaped (eg, the outer diameter D ₅₀₂ is 6.5 mm and the inner diameter d ₅₀₂ is 5.0)
mm), and the accommodating portion 501c of the pellet 501
Is stored (loaded) in The ring 502 is made of the pellet 50
The umbrella 501a must be loaded in a state of sinking on the bottom surface. That is, it must not be tilted or floated.

Conventionally, in order to manufacture such a composite member 500, a member loading method as shown in FIG. 8 has been adopted.

Referring to FIG. 8, first, on a base 600 having a flat upper surface arranged horizontally, about 500 pellets 501 (only one pellet 501 is shown) are arranged with each projection 501b facing upward.

[0005] One ring 502 is attracted to one pellet 501 using vacuum tweezers 700, and the core is visually observed, ie, the protrusion 501 b of the pellet 501 is passed through the center hole of the ring 502. Thus, loading is performed to manufacture the composite member 500 in the state shown in FIG.

In the above-described member loading method, the reason why the ring 502 is manually loaded using the vacuum tweezers 700 is that the ring 502 is thin and very brittle, and a part or all of the ring 502 is not damaged. is there.

[0007]

Conventionally, including the example described with reference to FIG. 8, the member loading process for manufacturing this type of composite member is manually performed. Problems.

First, it is considered that a composite member having a size as shown in FIG. 7 is manufactured, for example, about 600 pieces per hour per worker. Considering the number of workers and the work place, the work is limited to about 6 hours a day, and the limit is to manufacture about 3600 pieces per worker per day.

Further, since the ring is thin and very weak, the ring may be broken when the ring is loaded with vacuum tweezers. In addition, the ring may be broken at the corner of the protrusion of the pellet during loading, or may be loaded in a cracked state without breaking. In addition, the ring may not be loaded to a normal position in the loaded state, or a plurality of rings may be loaded or not loaded at all, despite the work of loading one ring into one pellet. These defective products are often found in the final inspection process, and there is a large work loss such as redoing.

Also, the difference between the inner diameter of the ring and the outer diameter of the protrusion of the pellet is very small, and since this fine work is performed visually, the fatigue of the operator is considerable.

An object of the present invention is to provide a member loading apparatus which is excellent in manufacturing efficiency, hardly generates defective products, and reduces a burden such as fatigue of an operator.

[0012]

According to the present invention, a brittle ring member is provided on a pellet member having a cylindrical projection so that the projection of the pellet member penetrates into a center hole of the ring member. In a member loading device for loading by means of a member operating means for arranging the ring member on the upper end of a cylindrical loading jig, the pellet member is disposed on the projection member with respect to the arranged ring member. Pellet operating means for assembling from below such that the mass thereof is directed downward and the mass is not substantially applied to the ring member, and the member operating means further moves the combined state of the pellet member and the ring member to the position of the pellet member. The member loading device is characterized in that the member loading device is turned upside down while maintaining the same.

According to the present invention, the pellet operating means comprises a first chucking section for gripping the pellet member supplied to the pellet supply position, and the first chucking section loading the first chucking section from the pellet supply position. And a pellet transporting unit that transports up to the ring member disposed on the upper end of the jig unit.
And releasing the gripping of the chucking portion to combine the pellet member with the ring member from above, wherein the first chucking portion is made of an elastic material and is in contact with the pellet member. A claw and a first hydraulic cylinder for driving a gripping operation, wherein the pellet transporting unit is configured by a combination of a second hydraulic cylinder and a rotating mechanism connected thereto; Is obtained.

According to the present invention, further, the member operating means determines the position of the pellet member among the pellet member and the ring member in a state of being combined on the loading jig and the loading jig. A loading plate provided on an upper plate surface with a second chucking portion that is maintained by regulating in cooperation with a tool portion, and the ring member supplied to a ring supply position is placed on the loading jig portion. A loading plate drive unit that transfers the loading plate so as to transfer the loading plate and turns the loading plate upside down so that the upper plate surface faces downward; and the second chucking unit includes an elastic material. A second claw portion that contacts the pellet member, and a third hydraulic cylinder that drives a gripping operation. The loading plate drive section includes a fourth hydraulic cylinder, a fifth fluid Pressure cylinder and rotating mechanism connected to it Wherein it is constructed with a combination of the members the loading device is obtained.

According to the present invention, furthermore, the loading jig protrudes from the inside toward the upper end side, penetrates the center hole of the ring member, and positions the ring member. A taper pin is provided to support the pellet member so as to enter the projection and perform relative positioning of the pellet member with respect to the ring member, and the taper pin is movable in the vertical direction, and the mass of the pellet member is transferred to the ring member. As a result, the member loading device is urged upward by an urging force that is not substantially applied.

According to the present invention, the loading jig section may include:
The member loading device having an upper end shape for supporting the pellet member such that the pellet member is separated from the ring member disposed on the upper end thereof, and being movable vertically with elasticity is obtained.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a member loading apparatus according to an embodiment of the present invention.

FIG. 1 and FIGS. 2 (a) and (b)
It is a figure showing the member loading device by this example.

In FIGS. 1 and 2A and 2B, the member loading device according to the present embodiment includes a member operating means 10 for disposing a ring 502 on the upper end of a cylindrical loading jig 102, There is a pellet operating means 20 for assembling the pellet 501 with respect to the placed ring 502 from above so that the protrusion is directed downward and the mass is not substantially applied to the ring 502. The member operating means 10 further includes a pellet 501 and a ring 50.
The combined state of the two is inverted while maintaining the position of the pellet 501 by regulating the position thereof.

The pellet operating means 20 includes a chucking unit 201 for gripping the pellet 501 supplied to the pellet supply position A by the parts feeder 301, and a chucking unit 201 for moving the chucking unit 201 from the pellet supply position A to a loading jig as described later. A pellet transport unit 202 that transports (in this embodiment, 90 degrees) a ring 502 (position B) disposed on the upper end of the unit 102 is provided. Further, the pellet operating means 20 releases the grip of the chucking portion 201 on the ring 502 (position B), and combines the pellet 501 with the ring 502 from above.
In this embodiment, the chucking unit 201 reciprocates between positions A and B.

FIG. 3A is a diagram showing the periphery of the chucking unit 201, and FIG. 3B is a diagram showing a part of the chucking unit 201. Referring to FIGS. 1A and 2 and FIGS. 3A and 3B, the chucking portion 201 is made of an elastic material, and drives a finger having a claw 201 a that comes into contact with the pellet 501 and a gripping operation by the finger. And a fluid pressure cylinder 201b. The claw 201a is adapted to the shape of the pellet 501 and does not chuck in a tilted state and does not come off during transportation. However, when chucking, the distance between the pair of claws 201a is smaller than that of the pellet 501.
Even in a state where the size is smaller than the size of the gripping portion, the chucking stress is not applied to the pellet 501 more than necessary, and the possibility that the pellet 501 is broken is extremely low. Claws 201
As the elastic material a, a urethane rubber-based spring die or the like can be used. This is hard to wear and has excellent durability. Note that the claw 201a refers to at least a portion of the finger portion of the chucking portion 201 that contacts the pellet 501.

FIG. 2 (a)
And (b), as shown in FIG .
Configuration part) and 20 2 a, and the combined body 20 2 b of the turning mechanism coupled to the fluid pressure cylinder (the other part of), by a rotary plate 20 2 c connected to the combination element 20 2 b Have been. The outer periphery of the rotating plate 202 c is chucking unit 201 is attached. This arrangement, chucking unit 201, together with the driven to rotate on the combination member 20 2 b, is driven to the fluid pressure cylinder 20 2 a with the rotation plate 20 2 c and moves up and down. That is, the chucking unit 201 moves the pellet 50 at the position A or B.
When moving from position A to position B while the pellet 501 is being gripped, it moves upward when gripping or releasing the gripper 1. Incidentally, it provided with a plurality of chucking portion 201 in the rotary plate 202 c, the rotating plate 20
2c may be rotated in one direction instead of reciprocating rotation. Further, the linearly-acting fluid pressure cylinder 20 2 a and the combination body 20 2 b can be constituted by a so-called rotary cylinder capable of both linear movement and rotation.

FIG. 4 is a diagram showing a main part of the member operating means 10. Referring to FIGS. 1 and 2 together with FIG. 4, the member operating means 10 includes a loading jig 102 and a pellet 5 in a state of being combined on the loading jig 102 as described later.
The apparatus has a loading plate 101 provided on an upper plate surface and a chucking portion 103 for maintaining the position of the pellet 501 of the ring 501 and the pellet 501 in cooperation with the loading jig portion 102. The member operating unit 10 further transfers the ring 502 supplied to the ring supply position C by the parts feeder 302 onto the loading jig unit 102 so that the loading plate 101 (including the loading jig unit 102 and the chucking unit 103 together). And a loading plate driving unit 104 for turning the loading plate 101 upside down so that the upper plate surface faces downward.

The chucking unit 103 is provided as shown in FIG.
A nail 10 made of an elastic material and contacting the pellet 501;
And 3a, and a fluid pressure cylinder 103 b for driving the gripping operation. Similarly to the claw 201a, the claw 103a is also adapted to the shape of the pellet 501, so that the pellet 501 does not come off when it is turned upside down or the like. 501 has a very low risk of breaking. The urethane rubber spring dies described above can also be used as the elastic material of the claws 103a.

As shown in FIG.
A (part of) a linear-acting fluid pressure cylinder 104a;
It is constituted by a combined body 104b of a fluid pressure cylinder (other part) and a rotating mechanism connected thereto. still,
Combined body 10 with linear-acting hydraulic cylinder 104a
4b, similarly to the pellet transporting unit 202, can be constituted by a so-called rotary cylinder capable of both linear movement and rotation.

That is, the output shaft (not shown) of the fluid pressure cylinder 104a has a combination body 104b, a loading plate 101 connected to the output shaft of the combination body 104b, a loading jig portion 102 provided on the loading plate 101, and The chuck unit 103 is connected. Accordingly, the loading jig unit 102 is driven by the fluid pressure cylinder 104a to move from the ring supply position C for exchanging the ring 502 to the position B for combining the pellets 501.

Further, a loading jig portion 102 and a chucking portion 103 for cooperatively regulating the positions of the pellet 501 and the pellet 501 of the ring 502 in a combined state on the loading jig portion 102 are provided. Loading plate 1
01 is rotated by 180 degrees (upside down) by being driven by the combination body 104b. As a result, the pellet 501 and the ring 502 in the combined state on the loading jig part 102 are moved from the position B to the position E on the completed member transfer means 40.
Sent to Here, the pellet 5 by the chuck 103
01 is released, and at a position E, a composite member is formed by loading a ring 502 on a pellet 501 having a cylindrical projection so that the projection of the pellet 501 penetrates the center hole thereof. 500 are obtained. The completed member transfer means 40 includes an XY table 401 and an X-Y table 401.
This is a means for arranging the composite member 500 to be sent to the position E on the floor plate 402.

FIGS. 5 and 6 (a) to 6 (c) are views for explaining the loading jig portion 102. FIG. The loading jig portion 102 will be described in detail with reference to FIGS.

The loading jig section 102 includes a cylindrical casing 1.
02a, a tapered pin 102b, and a compression spring 102c.
, A compression spring 102d, and a nut 102e, and are attached to the loading plate 101 by the nut 102e.

The tapered pin 102b is
a, protrudes from the inside of the upper end to the upper end side, penetrates through the center hole of the ring 502 (not shown in FIG. 5), positions the ring 502, and further, pellets 501 (FIGS. 5, 6).
(Not shown in (a)), the pellets 5
01 supports the pellet 501 so as to be positioned relative to the ring 502. The tapered pin 102b is further movable in the vertical direction within the casing 102a, and the pellet 501 is moved by the compression spring 102d.
Is biased upward by a biasing force such that the mass of the ring 502 is not substantially applied to the ring 502.

The casing 102a has an upper end shape for supporting the pellets 501 such that the pellets 501 are separated from the ring 502 disposed on the upper end thereof, that is, has a predetermined tapered shape. Furthermore, it is movable with elasticity in the vertical direction by the compression spring 102d.
That is, it has a cushion function of absorbing an impact on the ring 502 and the pellet 501 disposed on the casing 102a.

Referring to FIG. 6A, since the tip of the tapered pin 102b is tapered, the ring 502 received from the parts feeder (dropping from above) is connected to the upper flat surface of the casing 102a. They are always set in parallel. When the tapered pin 102b is at the upper limit position, the outer diameter D of the tapered portion on the tip side of the tapered pin 102b on the upper flat surface of the casing 102a.
_102b is an inner diameter d ₅₀₂ of the ring 502 (5.0 mm ± 0.
05) according to the upper limit of the manufacturing dimensional tolerance (5.05 mm). As a result, the ring 502 is
It is set on the tapered portion of the tapered pin 102b with a gap s1 of ₀ to 0.08 mm from the upper flat surface 2a. With this self-centering mechanism, the ring 502 is attached to the loading jig 1
02 is centered within 0.05 mm.

Referring to FIG. 6B, the pellet 501
When the protrusion 501b comes into contact with the tapered pin 102b, the chamfered tapered portion at the inner end of the protrusion 501b comes into contact with the tapered portion of the tapered pin 102b. At this time, between the projecting portion 501b and the ring 502, the gap s ₂ of about 0.1mm is secured. Projection 5
Since the tolerance of the inner hole diameter d _p is ± 0.02 mm,
The pellet 501 is 0.02 m with respect to the loading jig part 102.
Centered within m.

The pellet 501 further descends from the state shown in FIG. 6B, and the taper pin 102b is pushed down by its sliding function, and shifts to the state shown in FIG. 6C.
At this time, the ring 502 is
There is no breakage by the impact due to 1b. This depends on the following dimensional relationship.

That is, the inner diameter d _{502 of the} ring ₅₀₂ is 5.0.
mm ± 0.05, while the protrusions 5 of the pellet 501
The outer diameter d _501b of the first jig 01b is 4.9 mm ± 0.02, and the centering tolerance of the self-aligning mechanism of the loading jig unit 102 of this embodiment is ± 0.02 mm. Therefore, the minimum value of the inner diameter d ₅₀₂ of the ring 502 is 4.95 mm,
The maximum value including the centering tolerance of the outer diameter d _501b of the first protrusion 501b is 4.94 mm. Therefore, there is no contact in all areas.

Referring to FIG. 6C, the pellet 501
Is pressed against the casing 102a by a chucking portion 103 (not shown),
The pellet 5 is moved by the cushion mechanism of the loading jig 102.
The pressing force applied to 01 is greatly reduced. In the pellet 501, the tapered surface inside the umbrella portion 501a and the tapered surface at the upper end of the casing 102a are in surface contact. By this surface contact, the pressing force is further dispersed. Due to the cushion mechanism of the loading jig portion 102 and the surface contact on the tapered surface, almost no pressing force is applied to the pellet 501, and the possibility of the pellet 501 being damaged is extremely low. The gap between the inner bottom surface of the pellet 501 and the upper flat surface of the casing 102a is set to be larger than the thickness t (0.2 mm) of the ring 502 by a gap s ₃ (about 0.05 mm). Due to this gap s ₃ , no impact is applied to the ring 502 and the ring 5
02 is very unlikely to break.

An experiment was conducted to manufacture a large number of composite members 500 in which the ring 501 was loaded on the pellet 501 by using the member loading apparatus of the present invention having the structure described above. The experimental results are shown in Tables 1 and 2 below. As a comparative example, a conventional manual manufacturing was performed.

[0038]

[Table 1]

[Table 2] Referring to Table 1, which shows the yield results, the broken, cracked and chipped ring 502, slanted loading of ring 502, loading of multiple rings 502, and ring 5
It can be seen that good yield results were obtained in the present invention for all four unloaded items of No. 02.

Referring to Table 2 showing the performance results,
Good performance results were obtained with the present invention for all four possible operating hours per day, the time required to load one piece, the load per hour, and the load per day. You can see that.

The member loading apparatus according to the present invention can be configured to have a relatively small size that can fit in an occupied space of, for example, 1 m ^{2 or} less.

[0041]

The member loading device according to the present invention has a member operating means for arranging a ring member on the upper end of a cylindrical loading jig, and a pellet member for projecting a pellet member to the arranged ring member. A pellet operating means for downwardly combining the pellet member from above so that the mass is not substantially applied to the ring member, and the member operating means further regulates the position of the pellet member in a state where the pellet member and the ring member are combined. By doing so, it is possible to turn the product upside down while maintaining it, so that the manufacturing efficiency is excellent, defective products are less likely to be generated, and the burden such as fatigue of the worker can be reduced. More specifically, the following effects are obtained.

In the manual operation of the operator, it was limited to load 600 pieces per hour. However, when the apparatus is loaded, about 1200 pieces can be loaded per hour, which is about eight times that of the conventional work. Production volume.

The size of the apparatus is set within 1 m ^{2 in} terms of space, and it takes less than 3 seconds to load one unit and 120 units per hour.
It is possible to load 0 or more and operate 24 hours a day.

This is a method of gripping not a ring member but a pellet member, and the use of a nail made of urethane rubber prevents breakage due to chucking.

When loading the pellet member into the ring member,
By the self-aligning mechanism, the ring member is not broken at the protrusion of the pellet member.

When the taper pin of the loading jig has a sliding function, it is possible to reliably load the ring member at a predetermined position.

If a cushion mechanism is also used in the loading jig itself, the risk of breakage of the pellet member is extremely reduced.

A gap is formed so that the pellet member and the ring member do not come into contact with each other by, for example, making the tip of the loading jig taper, so that the risk of breakage of the ring member is extremely reduced.

Since the ring member is reliably positioned at the bottom of the pellet member in the completed loading state, the product inspection can be simplified, and the number of redo steps is unnecessary or very small, and the productivity is improved.

[Brief description of the drawings]

FIG. 1 is a view showing a member loading device according to an embodiment of the present invention.

FIG. 2 is a view showing a member loading device according to an embodiment of the present invention.

3A and 3B are views showing a chuck portion in the member loading device shown in FIG. 1, wherein FIG. 3A shows the whole and FIG.

FIG. 4 is a view showing a member operating means in the member loading device shown in FIG.

FIG. 5 is a view showing a loading jig in the member operating means shown in FIG. 4;

6 (a) to 6 (c) are views for explaining the operation of the loading jig in the member operating means shown in FIG.

FIG. 7 is a view showing a conventional example and a composite member obtained by the present invention.

FIG. 8 is a view for explaining a conventional member loading step.

[Explanation of symbols]

 Reference Signs List 10 member operating means 20 pellet operating means 101 loading plate 102 loading jig section 102a casing 102b taper pin 102c, 102d compression spring 102e nut 103 chucking section 104 loading plate drive section 201 chucking section 202 pellet transport section 301, 302 parts feeder 401 Completed member transfer means 500 Composite member 501 Pellet 501a Umbrella 501b Projection 501c Housing 502 Ring

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B23P 19/00-21/00 H01J 23/05

Claims (5)

(57) [Claims] 1. A member loading apparatus for loading a brittle ring member on a pellet member having a cylindrical projection with a projection of the pellet member penetrating into a center hole thereof. A member operating means for arranging the ring member on the upper end of a cylindrical loading jig; and arranging the pellet member with respect to the arranged ring member such that the projections thereof are directed downward and the mass thereof is shifted to the ring member. Pellet operating means for combining from above so that substantially no voltage is applied, the member operating means further comprising a pellet member and a ring member being turned upside down while maintaining the combined state by regulating the position of the pellet member A member loading device, characterized in that: A first chucking portion for gripping the pellet member supplied to a pellet supply position; and an upper end of the loading jig portion for moving the first chucking portion from the pellet supply position. And a pellet transporting unit that transports the pellet member to the ring member disposed thereon, and further releases the gripping of the first chucking unit on the ring member to release the pellet member from the ring member. Wherein the first chucking part is made of an elastic material, and includes a first claw that contacts the pellet member, and a first hydraulic cylinder that drives a gripping operation, The member loading device according to claim 1, wherein the pellet transporting unit is configured by a combination of a second hydraulic cylinder and a rotating mechanism connected thereto. 3. The member operating means cooperates with the loading jig in positioning the position of the pellet member of the pellet member and the ring member combined with the loading jig on the loading jig. A loading plate provided on the upper plate surface with a second chucking portion to be maintained by restricting the ring member so that the ring member supplied to a ring supply position is transferred to and from the loading jig portion. A loading plate driving unit for transferring the loading plate and turning the loading plate upside down so that the upper plate surface thereof faces downward, wherein the second chucking unit is made of an elastic material, Second contact with the member
And a third hydraulic cylinder for driving a gripping operation, wherein the loading plate drive unit includes a fourth hydraulic cylinder, a fifth hydraulic cylinder, and a rotating mechanism connected thereto. 3. The combination of claim 1 or claim 2, wherein
A member loading device according to claim 1. 4. The loading jig portion projects from the inside toward the upper end side, penetrates a center hole of the ring member to position the ring member, and further enters the protrusion of the pellet member to form a pellet. A taper pin for supporting the pellet member so as to position the member relative to the ring member, wherein the taper pin is vertically movable and the mass of the pellet member is not substantially applied to the ring member. The member loading device according to any one of claims 1 to 3, wherein the member is urged upward by an appropriate urging force. 5. The loading jig portion has an upper end shape for supporting the pellet member so that the pellet member is separated from the ring member disposed on the upper end thereof, and is movable vertically with elasticity. 5. The method according to claim 1, wherein
The member loading device according to any one of the above.