JP2974871B2 - Automatic forming system for thermal spray coating on inner surface of cylindrical workpiece - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner periphery of a cylindrical work.
The present invention relates to a surface spray coating automatic forming system .

[0002]

Conventionally, for example, sodium - the inner peripheral surface of a cylindrical workpiece such as an aluminum alloy cylinder pipe in sulfur battery, an anticorrosion be film when sprayed formed, FIG. 11
A work supporting device as shown in FIG. That is, in this conventional device, the device main body 101 is formed in a substantially box shape, and the shaft support 102 is supported through the upper wall thereof. The rotating cylinder 103 is connected to the shaft support cylinder 1 via a bearing 104.
02 is rotatably supported, and a driven pulley 105 is fitted around the lower end thereof.

[0003] A chuck mechanism 106 is provided on the upper surface of the rotary cylinder 103, and a cylindrical work W such as an aluminum pipe is detachably chucked from the outer peripheral side by the chuck mechanism 106. A motor 107 is mounted on the inner surface of the apparatus main body 101, and a driving shaft is
Has been fixed. The belt 109 is mounted between the driving pulley 108 and the driven pulley 105, and the rotating cylinder 103 is rotated via the pulleys 108 and 105 and the belt 109 with the rotation of the motor 107, and the chuck mechanism 106 is rotated.
Is rotated.

[0004] The thermal spraying device 110 is disposed above the apparatus main body 101 of the work supporting device, and includes a supporting arm 111 and a thermal spray gun 112 supported at the tip thereof. Then, while the work W is rotated by the motor 107, the spray gun 112 of the spray device 110 is moved up and down along the inner peripheral surface of the work W, and the spray gun for spray forming the anticorrosion film from the spray gun 112 is formed. By spraying, a thermal spray coating is formed on the inner peripheral surface of the work W.

[0005]

However, in this conventional work support apparatus, a series of work for a cylindrical work is not possible.
Thermal spray coating formation process, that is, blast device, heating device,
Using thermal spray coating forming equipment, cooling equipment, inspection equipment, etc.
Blast treatment, pre-heat treatment, film formation, cooling of the inner peripheral surface of the work
Various processes such as rejection processing and coating inspection can be performed automatically.
There was a problem that can not be. In addition, conventional work support
In the holding device, since the work W is chucked at the fixed position, it is impossible to attach and detach the work in parallel with the thermal spraying. That is, when subjected to thermal spraying on the inner peripheral surface of a cylindrical workpiece as described above, necessary to rotate the cylindrical workpiece in a fixed position during spraying so that the thickness of the sprayed target membrane of the inner peripheral surface becomes uniform There is. For this reason, it is impossible to carry out machining simply by transporting the cylindrical work to the machining position, and a chuck device provided with a rotation mechanism as shown in FIG. 11 has been used. Therefore, the insertion and removal of the cylindrical work with respect to the chuck and the thermal spraying are sequentially performed on one chuck, so that the takt time of the thermal spraying is increased,
Many cylindrical workpieces could not be efficiently sprayed.

The present invention has been made by paying attention to such problems existing in the conventional technology. The purpose is to form a series of thermal spray coatings on cylindrical workpieces.
Forming process, that is, blasting and preheating of the inner peripheral surface of the work
Various processes such as processing, film formation, cooling, and film inspection
Spraying of the inner peripheral surface of a cylindrical workpiece that can automatically perform
An object of the present invention is to provide an automatic film forming system . Also,
Another object of the invention is to form a sprayed coating in addition to the above object.
Of thermal spray coating on inner peripheral surface of cylindrical work
Inner circumference of cylindrical work that can efficiently perform forming work
An object of the present invention is to provide a surface spray coating automatic forming system.

[0007]

To achieve the above object, according to the solution to ## Oite the inventions of claim 1, cylindrical workpiece
Thermal Spray Coating System for Forming Thermal Spray Coating on Inner Surface
The inner peripheral surface of the cylindrical workpiece prior to thermal spraying.
A blasting device for blasting and a blasted circle
A heating device for heating the cylindrical workpiece, and a heated cylindrical wafer
Thermal spray coating to form a coating on the inner peripheral surface of the workpiece by thermal spraying
Equipment and a cooling machine to cool the cylindrical workpiece with the sprayed coating
Spray coating on the inner peripheral surface of a cooled cylindrical workpiece
Inspection device for inspecting and the circle processed by each device
Work transfer that supports the cylindrical work and transfers it sequentially to the next process
And a conveyor . Claim 2
In the present invention, the conveyor for transferring a workpiece
A is a free-flow conveyor with a circle on the top
A transport palette having a cylindrical holder for gripping a cylindrical work
Are supported on the conveyor so as to be relatively movable . Claim
In the invention described in Item 3, in Claim 2,
The cylindrical holder supports the cylindrical work vertically.
is there. In the invention described in claim 4, claims 1 to 3 are provided.
Heating the cylindrical work in any one of the above.
The heating device is supported vertically on the workpiece conveyor.
This is for heating the cylindrical work. Claim 5
In the invention according to claim 4, the heating device according to claim 4,
Is located directly above the free flow conveyor,
The column of the slot holder is guided along the passage groove,
The cylindrical work supported vertically by the die passes through the heating furnace
While heating, the cylindrical work is heated.

Further, according to the inventions of claim 6, Oite to claim 1, wherein the sprayed coating forming apparatus includes a cylindrical Wah
Sprayer that sprays on the inner surface of the rotor and rotatable around one axis
Turntable supported by Noh and its turntable
The turntable's rotation axis
Wires rotatably supported about an axis parallel to the line.
Chuck mechanism and the rotation of the turntable.
One work chuck mechanism corresponds to the spraying machine
When placed in the position, the work chuck mechanism rotates
A rotation mechanism for transmitting a force;
The mechanism is a fixed gripper that grips the outer peripheral surface of the cylindrical workpiece, and
It has a movable gripper . The invention according to claim 7
, The work chuck machine according to claim 6,
The rotating mechanism that transmits the rotating force to the frame is a fixed gripper and a movable
It is provided on the side of the cylindrical workpiece gripped by the gripper.
You. In the invention described in claim 8, claim 6 or 7
Wherein the fixed gripper and the movable gripper are cylindrical workpieces.
Formed of a material that has no affinity with the material that forms the
You. According to the ninth aspect of the present invention, in the sixth aspect, the
In any one of the above, the movable gripper may be biased by an urging member.
It is pressed against the outer peripheral surface of the cylindrical work.

[0009]

The inner peripheral surface of the cylindrical work configured as described above.
In the thermal spray coating automatic forming system , the inner peripheral surface of the cylindrical workpiece
Is blasted and then heated to form a thermal spray coating
A film is spray-formed on the inner peripheral surface of the cylindrical workpiece by the device.
Therefore, the adhesion of the coating is improved, and a uniform coating is formed on the inner peripheral surface.
Can be formed. In addition, the inner peripheral surface of the cylindrical workpiece is covered with
After spray coating the film, cool the cylindrical workpiece.
Therefore, the cylindrical workpiece is cooled to a predetermined temperature, and the coating is inspected.
Surveys can be conducted. For this reason, the automatic film forming system
The size of the system and improve adaptability to tight spaces.
Can be.

[0010]

EXAMPLES Hereinafter, the inner circumferential surface spraying of a cylindrical workpiece of the present invention
An embodiment of an automatic film forming system will be described in detail with reference to the drawings.

First, the overall structure of the thermal spraying system will be described. As shown in FIGS. 2 and 4, a free flow conveyor 1 is installed in a factory 2 and makes a round in a substantially rectangular plane. A number of transport pallets 3 are movably supported on the free flow conveyor 1, and a cylindrical holder 4 is provided on the upper surface thereof. Incidentally, the free flow conveyor 1 is obtained by arrayed rotatably many rollers on the conveyor chain, the respective transport pallet 3 is conveyed by the movement of the free-flow conveyor 1 by that will be placed on the free ball to together, you can move relative to the free flow conveyor 1. Then, in a state where a cylindrical work W such as an aluminum alloy cylindrical pipe in the sodium-sulfur battery is inserted and supported in the holder 4 of the transport pallet 3, the free flow conveyor 1 counterclockwise in FIG. It is moved around.

As shown in FIG. 2, a carry-in stocker 5 is provided on one side of the free flow conveyor 1 so as to be movable toward and away from the free flow conveyor 1.
Is loaded. The unloading stocker 6 is provided on one side of the free flow conveyor 1 so as to be able to move in and out of parallel with the loading stocker 5, and the processed work W is loaded and unloaded by the unloading stocker 6.

The blast device 7 is installed in the factory 2 adjacent to one side of the free flow conveyor 1 and has a work supporting device 8 such as a turntable for supporting the work W. Then, while the work W is supported on the work supporting device 8, the blast device 7 performs shot blasting on the inner peripheral surface of the work W, and the inner surface of the work W is roughened.

A robot 9 for loading and unloading a workpiece is disposed adjacent to the blast device 7, and a workpiece gripping section 11 is provided at the tip of an arm section 10. Then, the workpiece W is gripped by the workpiece gripper 11 of the workpiece loading / unloading robot 9, and is loaded from the loading stocker 5 to the workpiece support device 8 of the blast device 7, from the workpiece support device 8 to the free flow conveyor 1, or to the free flow conveyor. Conveyor 1
From the unloading stocker 6.

The heating device 12 is provided in the middle of the free flow conveyor 1, and after the shot blasting by the blast device 7 is completed, the work W supported on the holder 4 of the transport pallet 3 passes through the heating device 12. Conveyed through. The work W is heated to a predetermined temperature of about 250 ° C. by the hot air in the heating device 12.

As shown in FIGS. 1 and 2, a thermal spray coating is formed.
The apparatus includes a spraying machine 13 installed in the factory 2 adjacent to the other side of the free flow conveyor 1, a work supporting device 14 for supporting a cylindrical work W, and spraying on an inner peripheral surface of the work W. It is constructed from the robot 15. for applying. The work loading / unloading robot 16 is a work supporting device 1
The work holding portion 18 is provided at the tip of the arm portion 17. Then, the work W is moved to the work holding portion 18 of the work loading / unloading robot 16.
And is taken in and out between the free flow conveyor 1 and the work supporting device 14.

The work supporting device 14 has a turntable 19 rotatable about a vertical axis. On the turntable 19, a plurality (four in this embodiment) of work chuck mechanisms 20 are provided at predetermined intervals. Rotatably arranged
Has been established. The rotation mechanism 21 is provided corresponding to the robot 15. When one work chuck mechanism 20 is arranged at a position corresponding to the robot 15 with the rotation of the turntable 19, the rotation mechanism 21 is operatively connected to the work chuck mechanism 20. To transmit the rotational force to the mechanism 20. The work W chucked by the work chuck mechanism 19 after preheating
There while being rotated by the rotation mechanism 21, anticorrosive the film is sprayed on the inner circumference of the work W by the robot 15.

As shown in FIG. 2, the cooling device 22 is provided in the middle of the free flow
After the thermal spray coating is formed by the
The work W supported above is conveyed through a position facing the cooling device 22. Then, the cool air is blown from the cooling device 22 to the work W, whereby the work W is cooled to a predetermined temperature.

The inspection device 23 is disposed in the middle of the free flow conveyor 1, and the work W cooled by the cooling device 22 is conveyed through a position of the inspection device 23 facing various instruments. By various instruments of the inspection apparatus 23, the inspection is sprayed the film formed on the inner peripheral surface of the workpiece W state, defective workpiece removal robot 2
4 removes it from the transport pallet 3. The non-defective work W that has passed the inspection of the thermal spray coating is conveyed to one end of the free flow conveyor 1 and then taken out onto the unloading stocker 6 by the work loading / unloading robot 9.

Next, the structure of the blast device 7 will be described in detail. As shown in FIGS.
Is formed in a substantially box shape, and a work support device 8 composed of a turntable is rotatably supported on one side.
The gun 28 is disposed in the apparatus main body 27 so as to be able to move up and down, and the work W supported on the upper surface thereof is moved and arranged at a position corresponding to the gun 28 with the rotation of the work supporting device 8.
Then, in this state, while the gun 28 is moved up and down along the inner peripheral surface of the work W, abrasive grains are sprayed from the gun 28 to roughen the inner peripheral surface of the work W. This roughening process enhances the adhesiveness of the abrasive grains in the subsequent spraying,
It is intended for facilitating the film is formed.

Next, the structure of the heating device 12 will be described in detail. As shown in FIGS. 4 and 5, a substantially box-shaped heating furnace 31 is disposed immediately above the free flow conveyor 1, and both sides thereof are disposed on both sides thereof. An inlet 32 and an outlet 33 for taking in and out the work W are formed. The opening / closing door 34 is attached to the entrance 32 and the exit 33 so as to be openable and closable.
5 is opened and closed via the transmission mechanism 36 by the operation of 5.

The passage groove 37 is formed at the center of the bottom wall of the heating furnace 31 and extends along the free flow conveyor 1 in the moving direction. When the work W supported by the holder 4 of the transfer pallet 3 is conveyed through the heating furnace 31 by the orbital movement of the free flow conveyor 1, the column 4 a of the holder 4 moves through the passage groove 37. Moved through.

An air blower 38 is disposed at an upper portion on one side in the heating furnace 31, and pulleys 40 and 41 are driven by a motor 39.
And via the belt 42. The blower induction plate 43 is disposed at the upper center of the heating furnace 31, and a heater 44 is disposed above the blower induction plate 43. Then, by the cooperation of the blower 38 and the heater 44, the hot air is circulated and supplied into the heating furnace 31 along the wind guide plate 43, and the work W is heated. In this case, the workpiece W is heated to about 250 ° C. by the hot air of about 280 ° C., and the preheating temperature of the workpiece W is maintained at about 200 ° C. during the thermal spraying by the thermal spraying machine 13.

The exhaust blower 45 and the intake blower 46 are disposed below the heating furnace 31 along the direction of movement of the conveyor, and the exhaust port 47 and the intake port 48 are arranged opposite to the lower edge of the passage groove 37. I have. By the rotation of the exhaust blower 45 and the intake blower 46, an air curtain is formed between the exhaust port 47 and the intake port 48, and the heating furnace 3
Hot air is prevented from leaking from inside 1 through the passage groove 37.

Next, the work supporting device 1 of the spraying machine 13
4 will be described in detail. As shown in FIGS. 1 and 6 to 8, the turntable 19 is attached to an indexing device on an index base 100 supported on a common base 99 by a support shaft 52.
It is rotatably supported through. The base 51 is a column for covering the index device. The motor 53 is disposed on the base 51, and the rotation of the motor 53 causes the turntable 19 to be indexed and rotated by a predetermined angle via the pulleys 54 and 55, the belt 56, the indexing device 57 and the like.

A plurality of work chuck mechanisms 20 are arranged at predetermined intervals on the turntable, and the work W after preheating is detachably held by the work chuck mechanism 20. That is, the shaft support 58 is fixed through the turntable 19, and a rotating cylinder 59 is rotatably supported in the shaft support 58 via the plurality of bearings 60. The driven roller 61 is fixed to the lower end of the rotary cylinder 59, and a contact surface 62 made of a material having a large friction coefficient such as rubber is provided on the outer periphery thereof.

The fixed holding body 63 is attached to the upper surface of one side of the rotary cylinder 59 by a plurality of bolts 64, and a pair of holding surfaces 65 that can contact the outer peripheral surface of the work W are provided at both ends. The movable gripper 66 is rotatably mounted on the upper surface of the other side of the rotary cylinder 59 by a support shaft 67 so that the movable gripper 66 can be opened and closed. A gripping surface 68 is provided which can be contacted from the outside. The spring 69 is mounted between the movable gripper 66 and the rotary cylinder 59, and the spring 69 biases the movable gripper 66 in the closing direction. A stopper (not shown) is fixed to the rotating cylinder 59, and the movable gripping body 66 is engaged with the stopper by the tensile force of the spring 69 and is held at a predetermined position.

In this embodiment, the gripping surfaces 65, 68 of the gripping bodies 63, 66 are formed of a material that can withstand high temperatures and has no affinity for the workpiece W as the object to be gripped. In particular, in this embodiment, the work W is formed of a cylindrical pipe made of an aluminum alloy.
68 is formed of a material having no affinity for aluminum. Examples of the material of the gripping surfaces 65 and 68 include carbon which is incompatible with aluminum and has lubricity to aluminum, a composite material in which carbon such as graphite is impregnated with carbon via a binder, and There are boron nitride and the like.

The cam body 70 is fixed to the lower end of the movable holding body 66, and an inclined cam surface 71 is provided on the lower surface thereof. The operating shaft 72 is vertically movably penetrated through the rotary cylinder 59 corresponding to the cam body 70, and an engaging roller 73 is rotatably supported at the upper end thereof. The spring 74 is the operating shaft 7
The operating shaft 72 is urged to move downward by the spring 74. Recess 72a
Are formed at the lower part of the operating shaft 72 and
A stopper 59a located in the concave portion 72a is fixed to the upper end, and the vertical movement range of the operation shaft 72 is regulated by the engagement of the both. The stopper 59a is a detent for restricting the roller direction to one direction.

An actuator 75 composed of a cylinder or the like is disposed on the common base 99 at a position where the work W is carried in and out of the work chuck mechanism 20, and its drive shaft 76
Corresponds to the lower end of the operating shaft 72 so as to be able to come and go. Then, by the operation of the actuator 75, the drive shaft 76 is engaged with the operation shaft 72 from a separated state, and the movable shaft 72 is pushed up. By the upward movement of the operating shaft 72, the engagement roller 73 is engaged with the cam surface 71 of the cam body 70, and the movable gripping body 66 is opened and rotated clockwise in FIG.

Next, a rotation mechanism 21 for rotating the work chuck mechanism 20 will be described in detail with reference to FIG.
As shown in FIG. 9 and FIG.
5 is provided upright at a position corresponding to 5 via a support cylinder 80. The rotation arm 81 is rotatably supported by a support shaft 79 via a plurality of bearings 82, and a shaft support tube 83 is provided at the end thereof. The rotation shaft 84 is rotatably supported in the shaft support 83 via a plurality of bearings 85.

The driving roller 86 is fixed to the upper end of the rotating shaft 84, and has a contact surface 87 made of a material having a large friction coefficient such as rubber on the outer periphery thereof. The spring 88 is interposed between the rotating arm 81 and the support cylinder 80, and the spring 8
8, the rotation arm 81 is urged to rotate toward the turntable 19 side. The rotating arm 81 is held by a stopper (not shown) at a position slightly rotated counterclockwise from the position shown in FIG. Then, with the rotation of the turntable 19, one work chuck mechanism 2
7 is moved to a position corresponding to the robot 15, the drive roller 86 of the rotation mechanism 21 is moved by the spring force of the spring 88 to the driven roller 61 of the work chuck mechanism 20, as shown in FIGS. It is pressed and engaged.

A motor 89 is attached to the lower part of the tip of the rotating arm 81, and its motor shaft 90 is
1 is connected to the lower end of the rotating shaft 84. When the motor 89 is rotated in a state where the driving roller 86 and the driven roller 61 are pressed and engaged, the rotational force is applied to the rotating cylinder 59 of the work chuck mechanism 20 via the rollers 86 and 61. The work W transmitted and held between the holding bodies 63 and 66 is rotated.

Next, the robot 15 will be described in detail. As shown in FIG. 1, a column 94 is erected on a base 95, and a support arm 96 is rotatably mounted on the upper end thereof. The rotation cylinder 97 is disposed on the side of the base 95, and is supported by the support arm 96 by the rotation cylinder 97.
Is turned up and down. The spray gun 98 is vertically supported by the tip of the support arm 96, and the workpiece W chucked by the workpiece chuck mechanism 20 with the vertical rotation of the support arm 96.
Is moved up and down along the inner peripheral surface of. Then, a spraying agent for spray-forming the anticorrosion film is sprayed from the spray gun 98 to form a sprayed film on the inner peripheral surface of the work W.

Next, the operation of the thermal spraying system configured as described above will be described. Now, in the thermal spraying system of this embodiment, as shown in FIG. 2, the unprocessed work W is loaded near the one side of the free flow conveyor 1 while being loaded on the loading stocker 5. Then, the work W is taken into the work supporting device 8 of the blast device 7 from the carry-in stocker 5 by the work taking-in / out robot 9. Then, as shown in FIG. 3, in the blasting device 7, abrasive grains are sprayed on the inner peripheral surface of the work W by the gun 28 to perform shot blasting.

Thereafter, as shown in FIG. 2, the workpiece W after the shot blasting is moved from the workpiece support device 8 to the transport pallet 3 on the free flow conveyor 1 by the workpiece loading / unloading robot 9. In this state, the work W on the transport pallet 3 is transported through the heating furnace 31 of the heating device 12 by the operation of the free flow conveyor 1. Then, as shown in FIGS. 4 and 5, in the heating furnace 31, the work W is heated to a predetermined temperature by hot air generated from the blower 38 for blowing air and the heater 44.

As shown in FIG. 2, the work W having been heated as described above is conveyed to the other end of the free flow conveyor 1, and is moved from the free flow conveyor 1 to the work of the thermal spraying machine 13 by the work loading / unloading robot 16. Supporting device 1
4 is captured. That is, as shown in FIGS. 6 and 7, with the indexing rotation of the turntable 19,
The work W is sequentially inserted between the holding bodies 63 and 66 of the plurality of work chuck mechanisms 20 arranged on the turntable 19, and the work W is chucked from the outer peripheral side by the holding bodies 63 and 66. In this state, the turntable 19 is further indexed and rotated, and the work W on the work chuck mechanism 20 is sequentially moved to a position corresponding to the robot 15.

Then, as shown in FIGS. 7 and 9, at a position corresponding to the robot 15, the driven roller 61 of the work chuck mechanism 20 is pressed and engaged with the driving roller 86 of the rotating mechanism 21. In this state, rotational force is transmitted from the rotation mechanism 21 to the work chuck mechanism 20 via the rollers 86 and 61, and the work W chucked between the gripping bodies 63 and 66 is rotated.

In this rotating state of the work W, as shown in FIG. 1, the spray gun 98 of the robot 15 is inserted into the work W, and the work W is moved up and down in this state to prevent corrosion on the inner peripheral surface of the work W. thermal sprayed coating is formed by being blown spray adhesive that forms the film. At this time, the work W
Since the rotation mechanism 21 is provided, the spray gun 98
Gun 98 interferes with rotation mechanism 21 even if penetrates down
I will not do it. Thereafter, as shown in FIG. 2, the workpiece W after the thermal spraying is arranged at a predetermined position by the indexing rotation of the turntable 19, and at that position, the workpiece loading / unloading robot 16 moves the workpiece W from the workpiece support device 14 to the free flow conveyor 1. It is taken out onto the transport pallet 3.

Then, as shown in FIG. 2, the workpiece W on the transport pallet 3 is transported along the free flow conveyor 1 and cooled to a predetermined temperature at a position corresponding to the cooling device 22. In addition, at the position corresponding to the inspection device 23, the inspection of the thermal spray coating on each work W is performed. Thereafter, the work W is conveyed to one end of the free flow conveyor 1 and then taken out onto the unloading stocker 6 by the work loading / unloading robot 9 and carried out of the factory 2.

As described above, in the work supporting device 14 of the spraying machine 13 of this embodiment, the unprocessed work W is attached to the work chuck mechanism 20 on the turntable 19 at a position separated from the robot 15. Then, the processed work W is removed. Then, by the indexing rotation of the turntable 19, the unprocessed work W
Is carried into a position corresponding to the robot 15,
The processed work W is carried out from a position corresponding to the robot 15.

Therefore, the loading and unloading of the work W to and from the work chuck mechanism 20 and the thermal spraying of the work W can be performed simultaneously in parallel. Therefore, the processing tact time for thermal spraying is shortened, and work can be efficiently performed on a large number of works W.

Further, the work chuck mechanism 2 of this embodiment
0, the gripping surfaces 65, 68 of both gripping bodies 63, 66
Is formed of a material that withstands high temperatures and has no affinity for the work W made of an aluminum alloy. For this reason,
Even when the workpiece W is heated to a high temperature due to preheating or thermal spraying, when the workpiece W is gripped between the gripping surfaces 65 and 68 of the gripping bodies 63 and 66, the metal material melted from above the work W is applied to the gripping surfaces 65 and 68. It does not weld to 68. Therefore, it is possible to prevent the possibility of the work W being damaged due to galling of the work W, and the work W can be accurately chucked at a predetermined centering position between the two gripping bodies 63 and 66. By the way, if the galling has occurred, there is a possibility that the core by that amount is shifted, exert a significant adverse effect on the film quality.

In the above-described embodiment, the fixed grip 63 is attached.
The movable gripper 6 biased by a spring 69 as a biasing member
6, the outer peripheral surface of the work W is gripped.
The workpiece W locally expands radially outward due to the thermal spraying heat.
The workpiece W in the radial direction.
Ku W deforms distorted and hinders the formation of thermal spray coating.
Can be prevented. The present invention is not limited to the structure of the embodiment, for example, that appropriately varying puff the configuration of the workpiece chuck mechanism 20 and rotating mechanism 21 or the like,
The present invention can be arbitrarily changed and embodied without departing from the spirit of the present invention.

[0045]

According to the first aspect of the present invention, since it is configured as described above , the invention is applied to the inner peripheral surface of the cylindrical workpiece.
Improve the adhesiveness of the coating to form a uniform coating on the inner peripheral surface.
The automatic film forming system can be made smaller and narrower.
It has an excellent effect that the adaptability to a small space can be improved . In the invention described in claim 2,
In addition to the effects of the invention described in claim 1, the cylindrical work is
Can be transported stably on the conveyor by the shape of the holder
it can. According to the third aspect of the present invention, there is provided the second aspect.
In addition to the effects of the invention described above, a cylindrical holder is provided by a cylindrical holder.
Can be transported stably by supporting the workpiece vertically.
You. According to the fourth aspect of the present invention,
In addition to the effect of the invention described in any one of the above, the work transfer
The work supported vertically on the conveyor for heating
Can be In the invention described in claim 5, the contract
In addition to the effects of the invention according to claim 4, the holder is supported vertically.
The held work is more stable on the work transfer conveyor
Can be transported. The invention of claim 6
In addition, in addition to the effects of the first aspect,
With the rotation of the cable, the workpiece is sequentially rotated and transferred,
When the work reaches the predetermined position, the work is
More rotated. Therefore, at the predetermined position,
Thus, the thermal spray coating can be sequentially and efficiently applied. Claim
In the invention according to the seventh aspect, the effect of the invention according to the sixth aspect is provided.
To prevent interference between the spray gun of the sprayer and the rotating mechanism.
Can be In the invention according to claim 8, the contract
In addition to the effects of the invention according to claim 6 or 7, the fixed gripping
Of the outer peripheral surface of a cylindrical workpiece by a movable body and a movable gripper
To ensure proper gripping of the workpiece in the next spraying process
Holds to prevent spray coating quality deterioration due to workpiece tilt
can do. In the invention according to claim 9,
In addition to the effects of the invention according to any one of claims 6 to 8,
The thermal spray coating by allowing local thermal expansion of the workpiece during thermal spraying.
It can be formed properly .

[Brief description of the drawings]

Figure 1 is a side view showing one embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the overall configuration of the thermal spray coating forming system .

FIG. 3 is an enlarged side view showing a configuration of a blast device in the thermal spray coating forming system .

FIG. 4 is an enlarged sectional view showing a configuration of a heating device in the thermal spray coating forming system .

FIG. 5 is a side view showing the heating device in a partial cross section.
FIG.

FIG. 6 is an enlarged plan view showing a main part of a chuck mechanism in the work supporting apparatus of FIG. 1 ;

FIG. 7 is a partial sectional view taken along line AA of FIG. 6 ;

FIG. 8 is a partial cross-sectional view taken along line BB of FIG. 6 ;

FIG. 9 is an enlarged plan view of a main part of a rotation mechanism for rotating a chuck mechanism in the work supporting device of FIG. 1 ;

FIG. 10 is a partial cross-sectional view taken along line CC of FIG. 9 ;

FIG. 11 is a sectional view showing a conventional work supporting device of a thermal spraying machine .

[Explanation of symbols]

1: free flow conveyor, 3: transport pallet, 4: e
Ruda 7 blasting device 12 heating device 13 thermal spraying
Thermal spraying machine that constitutes a film forming apparatus , 14: Thermal spray film forming apparatus
Work supporting device that constitutes the device, 15 ... sprayed film forming device
, Turntable, 20 work chuck device, 21 rotating mechanism, 58 shaft support, 5
9: rotating cylinder, 61: driven roller, 63: fixed holding body, 6
6 movable holder, 84 rotating shaft, 86 drive roller, 8
9 ... motor, 98 ... spray gun, W ... cylindrical work.

Claims (9)

(57) [Claims] 1. A thermal spray coating is formed on an inner peripheral surface of a cylindrical workpiece.
Automatic spray coating system that performs blast processing on the inner peripheral surface of a cylindrical workpiece prior to thermal spraying.
Blasting device and heating device for heating blasted cylindrical work
A coating on the inner peripheral surface of the heated cylindrical workpiece by thermal spraying.
Spray coating film forming apparatus, and cooling device for cooling a cylindrical workpiece having a spray coating formed thereon
And inspect the thermal spray coating on the inner peripheral surface of the cooled cylindrical work
Inspection device and cylindrical workpiece processed by each device
A work transfer conveyor that supports and sequentially transfers to the next process
Automatic Spray Coating System for Inner Surface of Cylindrical Work
M Wherein Oite to claim 1, conveyor for workpiece transfer
A is a free-flow conveyor with a circle on the top
A transport palette having a cylindrical holder for gripping a cylindrical work
The cylindrical shape is supported so that it can move relatively on the conveyor
Automatic forming system for thermal spray coating on the inner surface of workpiece . 3. The cylindrical holder according to claim 2, wherein
A cylindrical workpiece that supports a cylindrical workpiece vertically
Automatic forming system for thermal spray coating on inner surface 4. The method according to claim 1, wherein
The heating device for heating the cylindrical work is provided for transferring the work.
Heats a cylindrical work supported vertically on a conveyor
System for automatically forming a sprayed coating on the inner peripheral surface of cylindrical workpieces
Tem. 5. The heating device according to claim 4, wherein
It is located directly above the reflow conveyor,
The column of the holder is guided along the passage groove, and
The cylindrical work supported in the direction passes through the heating furnace.
The inner circumference of a cylindrical workpiece that heats the workpiece during
Surface spray coating automatic formation system. 6. The thermal spray coating forming apparatus according to claim 1,
The sprayer sprays the spraying agent on the inner peripheral surface of the cylindrical workpiece, a turntable rotatably supported around one axis, and is disposed on the turntable at predetermined intervals. A plurality of work chuck mechanisms rotatably supported around an axis parallel to the rotation axis, and with the rotation of the turntable, when one work chuck mechanism is arranged at a position corresponding to the spraying machine ,
A rotating mechanism for transmitting a rotating force to the work chuck mechanism , wherein each of the work chuck mechanisms grasps an outer peripheral surface of a cylindrical work.
Cylindrical gripper having a fixed gripper and a movable gripper
Automatic forming system for thermal spray coating on the inner surface of the workpiece. 7. The work chuck according to claim 6, wherein
The rotating mechanism that transmits the rotating force to the
It is provided on the side of the cylindrical work gripped by the dynamic gripper.
Automatic forming system for thermal spray coating on the inner surface of a cylindrical workpiece. 8. The fixed grip according to claim 6, wherein
Body and movable gripper are compatible with the material forming the cylindrical workpiece
Inner peripheral surface of cylindrical workpieces made of non-conductive material
Automatic coating system. 9. In any one of claims 6 to 8,
The movable gripper is biased by an urging member to an outer peripheral surface of the cylindrical work.
Sprayed coating on the inner peripheral surface of a cylindrical workpiece pressed against
Automatic forming system.