JPH0779983B2 - Reciprocating device for thermal spraying - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reciprocating device for thermal spraying, and more particularly to a reciprocating device for thermal spraying which can easily and effectively protect the reciprocating sliding part of a thermal spray gun from dust generated by thermal spraying.

[0002]

2. Description of the Related Art In recent years, thermal spraying means have been adopted to ensure the durability of the surface of shaft members and the like. As the thermal spraying means, a workpiece of a shaft member is horizontally attached to a chuck portion of a rotating device such as a lathe, and a thermal spray gun is reciprocally moved to the thermal spraying device in such a manner.

[0003]

Dust is generated when spraying, and this dust adheres to the reciprocating sliding portion of the spray gun and hinders its sliding. Therefore, the sliding surface is covered with a dust cover such as a bellows. is doing.

Further, the above-mentioned sliding portion is arranged on the upper surface of the frame of the thermal spraying apparatus, and dust is likely to be accumulated in the atmosphere where the thermal spray dust is scattered, and there is a reciprocating sliding portion on the frame. Was hard to clean.

[0005]

The present invention has been made in view of the above points, and in order to solve the above problems, the thermal spray gun is reciprocally moved along a horizontal frame of the thermal spraying apparatus. in reciprocating device for spraying the treatment was to be thermal spraying
There is a linear bear for reciprocating movement on the back side of the gantry
The sliding guide of the ring is placed facing downward , and the sliding part for reciprocating movement of the spray gun is hung on this sliding guide.
Way slidably mounted by attaching a lower portion of the support member to arrange the spray gun to the sliding portion, the support member is raised up to the upper side from the rack <br/> base of the lower spray It is an object of the present invention to provide a reciprocating moving device for thermal spraying, characterized in that a gun is arranged so as to be capable of reciprocatingly moving so as to face an object to be processed.

[0006]

According to the present invention, the upper part of the horizontal mount of the thermal spraying device
Can be effectively used and can be sprayed
On the back side of the gantry above
The slide guide of the
Suspend the sliding part for reciprocating spray gun on the guide
Since it is slidably attached, even if the object to be processed is sprayed with the spray gun, the spray dust will not scatter on the mount.
A sliding guide of the liner bearing behind the pedestal that is shielded
The dust can be prevented from scattering and
Since the sliding guide is facing downward, there is one layer of dust
It is hard to wear and moves the spray gun back and forth smoothly and accurately.
can do.

In addition, the lower portion of the supporting material for disposing the spray gun is
Attached to the sliding part, this support is on the lower side of the mount.
From the above, the spray gun is arranged so as to reciprocate so as to face the object to be processed, and thus the slide gun is arranged on the back side of the gantry to reciprocate the spray gun as described above. Nevertheless, the flat mount should be as wide as possible.
In addition to being effectively utilized , the thermal spray gun can be opposed to the object to be treated on the upper side of the gantry and can be reciprocally moved for thermal spray treatment.

[0008]

EXAMPLES The present invention will be described below based on examples. 1 to 3 show an embodiment of the present invention. As shown in FIGS. 1 and 2, the thermal spraying device 1 is provided with a rotary drive unit 4 on one side of a pedestal 3 whose upper portion is covered with a box-shaped hood 2, and the rotary drive unit 4 has a rod-shaped cover. A chuck 6 is detachably attached to the processing object 5, and a centering portion 7 is provided on the other side of the gantry 3.
Is provided to support the other end of the object 5 to be centered.

The upper surface of the pedestal 3 is flush with the lower surface of the hood 2 as shown in FIG. 1 so that dust scattered by thermal spraying can be easily captured in the hood 2. Then, as shown in FIG. 1, sliding guides 8 are arranged in parallel on the back surface side of the gantry 3 at regular intervals, and sliding parts 9 are fitted on the sliding guides 8 to support the support material 10. A thermal spraying gun 11 is attached to the object to be processed 5 for thermal spraying.

The sliding guide 8 and the sliding portion 9 are a kind of linear bearings usually called LM guide (trade name) as shown in FIG. 3, and have a cross section provided on the side peripheral surface of the sliding guide 8. A circular arc groove-shaped ball raceway surface 13 provided on the inner peripheral surface of the sliding portion 9 is fitted in the arc-shaped guide groove 12 so that the load of the vertical and horizontal directions can be restricted by one axis. It is what The present invention is characterized in that this known bearing is used in the upside-down direction, and the supporting member 10 is attached to the sliding guide 8 via the sliding portion 9 so as to be suspended.

As shown in FIGS. 1 and 2, the supporting member 10 has a substantially L-shape as shown in FIG. 1, and the sliding portion 9 is attached to the horizontal portion 14 on the lower side thereof. A reciprocating drive device 15 such as a servo motor is attached. And, the pivotally attached the required gear 16 to the reciprocating drive apparatus 15, the gear 16 engaged with the rack 17 attached to parallel form the sliding guide 8 described above on the back surface of the platform 3, the support member 1
0 can be reciprocally driven along the sliding guide 8 via the sliding portion 9.

As shown in FIG. 2, the vertical portion 18 of the supporting member 10 has a rectangular frame shape, and the vertical guides 20 covering the bellows 19 are arranged on both sides of the rectangular frame 18 and the center portion thereof is like a motor cylinder. A vertical elevating drive device 21 is attached so that the thermal spray gun mount 22 for mounting the thermal spray gun 11 can be elevated and lowered to a predetermined height.

In the hood 2 having the above-mentioned structure, FIG.
As described above, a screen 23 having a predetermined transmittance is attached so that dust generated by thermal spraying of the thermal spray gun 11 by an exhaust fan (not shown) can be exhausted to the outside by the exhaust duct 24 as indicated by an arrow.

Therefore, the workpiece 6 such as the shaft member is mounted on the chuck 6 of the rotary drive unit 4, the blower is operated, and the reciprocating drive unit 15 and the lifting drive unit 21 are driven to spray the spray gun 11.
Is moved to a predetermined position and sprayed onto the surface of the object to be treated 5.

At this time, the sprayed dust generated is sucked into the hood 2 by the exhaust fan as shown by the arrow in FIG. 1, and the sliding guide 8 for reciprocating movement is arranged on the back side of the gantry 3. Since it is provided, the pedestal 3 serves as a shielding plate for dust that scatters, and it is possible to prevent dust from scattering to the sliding guide 8 side and prevent spraying dust from adhering.

Therefore, it is not necessary to cover the sliding guide 8 with a bellows, and the lengths of the sliding guide 8, the pedestal 3, the driving rack 17 and the like can be shortened by the reduction of the bellows.
The device can be made compact.

Further, since the sliding guide 8 and the sliding portion 9 for reciprocating the spray gun 11 are arranged on the back side of the gantry 3 as described above, the upper surface of the gantry 3 is as shown in FIGS. 1 and 2. The side is flat and has a simple shape, and even if dust accumulates on the pedestal 3,
It can be easily cleaned and, if necessary, the upper surface of the gantry 3 can be effectively used.

[0018]

[Other Embodiments] FIG. 4 shows another embodiment of the present invention. In this embodiment, as shown in FIG. 4, the slide guides 8 are respectively arranged on the back side of the gantry 3 having a box-shaped cross section arranged side by side, and the sliding portions 9 are attached to the pedestals 3 arranged side by side as shown in FIG. From support material 10
Is raised to the upper side, and the thermal spray gun 11 is attached to a column 26 such as a ball board through a table 25 of a predetermined size to perform thermal spray treatment.

Also in this embodiment, the above-described effects can be obtained, and the thermal spraying can be performed without the support material protruding to the side portion of the mount.

In the above embodiments, the preferable example in which the bellows is not covered by the sliding guide disposed on the back side of the gantry has been shown, but it is not excluded that the bellows are covered to protect the sliding guide. .

[0021]

As described above, according to the present invention, the thermal spraying equipment is used.
The upper part of the horizontal frame of the table can be effectively used for thermal spraying.
It is possible to move back and forth on the back side of the frame
With the sliding guide of the linear bearing of
Installed on this sliding guide, sliding for spray gun reciprocating movement
Since the part is hung so that it can be slid freely,
The liner on the back side of the pedestal is covered
Dust adheres to the bearing sliding guide without scattering.
Can be prevented, and the sliding guide faces downward.
Since it has more dust, it is more difficult for dust to adhere and it is smooth and accurate.
The spray gun can be moved back and forth.

The lower part of the supporting material for disposing the thermal spray gun
Is attached to the sliding part, and this support is
From the side to the upper side and the spray gun facing the workpiece.
Since it is arranged so that it can reciprocate freely, a slide guide is placed on the frame.
Despite being installed, the flat mount should be as wide as possible.
It can be used effectively and dust is not
Even if it accumulates, it can be easily cleaned. And above
Install a sliding guide on the back side of the mount as shown
Spraying on the upper side of the gantry despite reciprocating
The gun can be opposed to the object to be processed and can be reciprocally moved for thermal spraying.

[Brief description of drawings]

FIG. 1 is a side sectional view of an embodiment of the present invention with a part omitted.

FIG. 2 is a partially omitted front view of the above embodiment,

FIG. 3 is an enlarged cross-sectional view of the sliding guide and the sliding portion of the above.

FIG. 4 is a side sectional view of a thermal spray gun reciprocating portion of another embodiment of the above.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Thermal spraying device 2 ... Hood 3 ... Stand 5 ... Processing object 8 ... Sliding guide 9 ... Sliding part 10 ... Support material 11 ... Thermal spray gun

Claims (1)

[Claims] 1. A reciprocating device for spraying which is adapted to spray processing an object to be processed by reciprocating the spray gun along the horizontal mount of the spray device, for reciprocally moving on the back side of the frame The linear guide of the linear bearing is installed in a downward direction , and the sliding part for reciprocating movement of the spray gun is hung on the sliding guide.
Slidably mounted Te, facing the lower portion of the support member to arrange the spray gun mounted on the sliding portion, the spray gun the support material raised to the upper side from the lower side of the pedestal to the object to be processed And a reciprocating device for thermal spraying, which is arranged so as to reciprocate.