JP2001162596A - Working device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent attachment of cutting chips and growth of burrs at the time of molding, cutting and working. SOLUTION: A stripper 10 free to vertically move is arranged in a cylindrical space part 6a of a slide block 6 to vertically move along a guide 5 by movement of a vertical cylinder, the stripper 10 has an inner space part 10a, and a punch 8 is arranged there. A cutter 13 is fastened on an opening part of the slide block 6. A fixed block 2 supports a die 9, and a work which is not shown in the drawing is placed on it. The slide block 6 is lowered by the vertical cylinder and it molds, cuts and works the work. At this time, as compressed air is supplied to the inner space part 10a through an air one-touch coupler 16 and this air is blown to a cutting work part from a clearance of the stripper 10 and the cutter 13, it prevents attachment of cutting chips on the die 9 and growth of burrs on the work. It is effective in the case when the work is a tantalum material, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing apparatus,
More specifically, the present invention relates to a processing apparatus that performs molding cutting by injecting compressed air to a processing portion of a workpiece.

2. Description of the Related Art For example, a strap for suspending a sleeve is welded to a bell-shaped cathode sleeve of an electron gun.
For forming and cutting the strap, a processing method is employed in which the sleeve of the sleeve placed on the mold is pressed and molded with one mold, and the protruding strap is cut by a cutting device.

[0002]

Generally, a strap for suspending a sleeve is made of a tantalum material, and the tantalum material has poor moldability and cutability. For this reason, according to the conventional processing method, cutting chips generated at the time of cutting adhere to the molding die, and burrs are generated on the cut surface of the strap due to the adhesion. Further, the tantalum material has the property of being sticky and hard. Because it is sticky, it is easy to stick to the mold and hard to peel off, and when it adheres to the mold because it is hard, it makes the cutting property worse,
In some cases, normal movement of the mold became impossible, resulting in abnormalities in the molded shape. Also, it may promote the wear of the mold, and in the worst case, may even cause serious damage to the mold. Furthermore, the work itself may stick to the mold,
The sticking of the workpiece to the mold caused frequent stoppages of the equipment. Furthermore, the cleaning cycle of the mold is shortened, the productivity is deteriorated, the life of the mold itself is shortened, and an abnormality in the molding shape has a problem of causing a defect in a subsequent process. .

The present invention has been made in view of the above circumstances, and provides a processing apparatus for injecting compressed air to a processing portion of a workpiece to perform forming and cutting.

[0004]

According to the first aspect of the present invention, there is provided a processing apparatus having a mold for molding a workpiece, and a cutting device for cutting the workpiece protruding from the mold. Is provided with a cutting device, and a gap through which compressed air passes is provided between the mold and the cutting device.

According to a second aspect of the present invention, in the first aspect, the mold includes a fixed mold having an inner molding portion and an outer molding portion, and a first movable mold corresponding to the inner molding portion. A second movable mold provided outside the first movable mold and corresponding to the outer molding portion, wherein the cutting device is a movable cutting device provided outside the second movable mold; There is a feature.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the processing apparatus has a removable compressed air supply means.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the workpiece is a strap of an electron gun cathode sleeve.

[0008]

FIG. 1 is a cross-sectional view of the entire structure of a processing apparatus to which the present invention is applied. A fixed block 2 and a support 3 are installed on a base 1. A cylinder mount 4 is provided. A slide block 6 is mounted on the support 3 via a high-precision LM guide 5, and an upper and lower cylinder 7 is installed on the cylinder mount 4, and a piston (not shown) of the upper and lower cylinder 7 engages with the slide block 6. Slide block 6 with high precision L
It is moved up and down along the M guide 5. By this up and down movement,
When the slide block 6 is in an appropriate positional relationship with the fixed block 2, the punch 8 descends and the die 9
Is pressed to form and cut an assembly component (work) placed on the die 9.

FIG. 2 is an enlarged sectional view of the fixed block 2 and the slide block 6. In the figure, the slide block 6 is moved up and down along the high-precision LM guide 5 by the operation of the vertical cylinder 7 as described in FIG. Move. The slide block 6 has a vertically extending opening 6c therein.
And a cylindrical space portion 6a having A stripper 10 is disposed in the cylindrical space 6a so as to be able to move up and down. The stripper 10 further has a cover 11 at the top and an internal space 10a. 8 are arranged with some play that can go up and down. A spring 12 is disposed in a space defined by the lid 11 and the stripper 10 in the cylindrical space 6a, and an air port 6b is formed in a portion communicating with the space, and is connected to an air pipe 15 there. The air one-touch joint 16 is attached. A cutter 13 is fixed to the lower opening 6 c of the slide block 6 by a hexagon socket set screw 14 so as to be integrated with the slide block 6.

On the other hand, an under bushing 17 is provided on the fixed block 2, and the under bushing 17 supports the die 9 by appropriate means. Punch 8 and die 9
For example, the engagement relationship is maintained when the punch 8 abuts on the die 9 by a configuration having a tapered portion.

FIG. 3 is a view for explaining the flow of compressed air in the slide block 6. The compressed air supplied from the air pipe 15 via the air one-touch joint 16 is
The slide block 6 and the cutter 13 integrally formed with the slide block 6, which enter the cylindrical space 6 a of the slide block 6, the lid 11, and the stripper 1.
The gas is ejected from the lower ends of the stripper 10 and the cutter 13 through a gap (a thick line in FIG. 3) formed between the stripper 10 and the cutter 13.

FIG. 4 is a diagram for explaining an operation flow when a workpiece is a strap of a bell-shaped cathode sleeve of an electron gun and the molding and cutting of the strap is performed. In FIG.
First, the sleeve 18 with the strap 19 welded thereto
Is put into the die 9 by means not shown (FIG. 4).
(A)). When the upper and lower cylinders 7 described with reference to FIG. 2 are lowered and the slide block 6 is pressed, the lid 11 of the stripper 10 is pressed against the spring 12, and the punch 8 is moved to the punch rear end top 8b (FIG. 3). The punch 8 descends while maintaining the positional relationship, and the tip taper portion 8a comes into contact with the tip inner taper portion 9a of the die 9 (FIG. 4).
(B)). The impact at the time of contact is transmitted to the punch 8, but the impact is absorbed by the spring 12, and the slide block 6 slides further downward. By this sliding, the tapered end 10b of the stripper 10 comes into contact with the tapered outer end 9b of the die 9, and the strap 19 is sandwiched between them to perform molding (FIG. 4C).

When the slide block 6 further descends, the cutter 13 integrally attached to the slide block 6 descends along the outer circumferences of the stripper 10 and the die 9, so that the strap 19 is cut (FIG. 4).
(D)). When the above operation is completed, the slide block 6 is raised by the vertical cylinder 7 (FIG. 4E).

In the course of the above operation, as described above (FIG. 3), the air one-touch joint 16
, Clean air is supplied through a mist separator or a filter (not shown), and the air is supplied from the cylindrical space 6 a of the slide block 6 to the slide block 6.
And, it is accurately jetted to the processing part through the gap between the cutter 13 and the lid part 11 of the stripper 10, the stripper 10, and further, the gap between the cutter 13 and the punch 8. Therefore, when the cutter 13 cuts the strap 19, cutting chips and the like generated from the strap 19 are instantaneously blown off, thereby preventing adhesion to the cutter 13, the stripper 10, and the die 9. Since there is no sticking of cutting chips or the like, burrs are prevented from being generated on the cut surface of the strap 19.

[0015]

According to the first aspect of the present invention, in a processing apparatus having a die for molding a workpiece and a cutting device for cutting the workpiece protruding from the die, cutting is performed outside the die. Since the device is provided and a gap through which the compressed air passes between the mold and the cutting device is provided, the compressed air can be accurately injected to the processing portion.

According to a second aspect of the present invention, in addition to the first aspect, the mold includes a fixed mold having an inner molded portion and an outer molded portion, and a first mold corresponding to the inner molded portion. A movable mold and a second movable mold that is provided outside the first movable mold and that corresponds to the outer molding portion, wherein the cutting device is installed outside the second movable mold. Since the movable cutting device is used, it is possible to eliminate the attachment of cutting chips to the mold and the generation of burrs on the workpiece. For this reason, the quality is improved by maintaining the cutting property, the molding is prevented by preventing the mold operation from being defective, the sticking of the workpiece to the mold is reduced, and the life of the mold itself is extended. Can be achieved.

According to the invention of claim 3, according to claim 1 or 2,
In addition to the effects of the invention, since the processing apparatus has a detachable compressed air supply means, the work of attaching and detaching the compressed air supply means becomes easy, and the work such as maintenance and replacement of the mold is made more efficient. be able to.

According to the invention of claim 4, claims 1 to 3 are provided.
In addition to the effects of the invention according to any one of the above, the mold,
Since the mold is used to mold the strap of the electron gun cathode sleeve, the strap of the electron gun cathode sleeve can be easily molded and cut.

[Brief description of the drawings]

FIG. 1 is a sectional view of the entire configuration of a processing apparatus to which the present invention is applied.

FIG. 2 is an enlarged sectional view of a fixed block and a slide block according to the embodiment of the present invention.

FIG. 3 is a diagram illustrating a flow of compressed air in a slide block according to the embodiment of the present invention.

FIG. 4 is a diagram illustrating an operation flow when forming and cutting the strap of the bell-shaped cathode sleeve according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base, 2 ... Fixed block, 5 ... High precision LM guide,
Reference numeral 6: slide block, 6a: cylindrical space, 6b: air port, 6c: downward opening, 7: vertical cylinder, 8: punch, 8a: punch tip taper, 8b: punch rear end top, 9: die , 9a ... Die tip inside taper portion, 9b ...
Die tip outside taper part, 10 ... Stripper, 10a
... Stripper internal space, 10b ... Stripper tip taper, 13 ... Cutter, 14 ... Set screw, 16 ...
Air one-touch fitting, 17 ... Under bushing, 18
... Sleeve, 19 ... Strap

Claims (4)

[Claims] In a processing apparatus having a die for molding a workpiece and a cutting device for cutting the workpiece protruding from the die, a cutting device is provided outside the die, and the die and the die are provided. A processing device having a gap through which compressed air passes between the cutting device and the cutting device. 2. The method according to claim 1, wherein the mold is provided with a fixed mold having an inner molding part and an outer molding part, a first movable mold corresponding to the inner molding part, and an outside of the first movable mold. 2. The second movable mold corresponding to the outer molding portion, wherein the cutting device is a movable cutting device installed outside the second movable mold. 3. Processing equipment. 3. The processing apparatus according to claim 1, wherein said processing apparatus has a removable compressed air supply means. 4. The processing apparatus according to claim 1, wherein said workpiece is a strap of an electron gun cathode sleeve.