JPH10113870A - Device for highly strengthening metallic member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to accurately advance and retreat a nozzle to a position in which it is positioned relative to a metallic member and a position in which it does not interfere with transportation of the metallic member, as well as to effectively simplify the composition. SOLUTION: A projection mechanism 54 comprises a nozzle 174 which projects a mix jet 250 to a gear 18 and driving means 131 which can advance and retreat the nozzle 174 to a projection position P1 which is spaced from the gear 18 by a distance necessary for projecting the mix jet 250 at a projection station S1 and a refuge position P2 which is outside of the interference range of the operation of a partition mechanism 44. The driving means 131 has a cylinder 132, and the nozzle 174 is positioned in an advancing end position and a retreating end position of the cylinder 132.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for increasing the strength of a metal member for increasing the strength of the surface of the metal member.

[0002]

2. Description of the Related Art Metal members, such as gears, are subjected to repeated loads during use, and therefore it is necessary to increase the fatigue strength of the gear surface. For this reason, shot peening in which a steel ball or the like collides with the gear surface to impart a compressive residual stress is widely performed.

[0003] However, in shot peening, since steel balls are used as shot materials, there is a problem that the gear surface is roughened and the surface roughness is reduced.
Further, for example, as disclosed in Japanese Patent Publication No. 5-21711, a method of projecting glass beads having a particle size of 0.2 to 0.6 mm on a metal surface is known. The directivity of the beads is poor, and the glass beads are liable to be scattered in various directions, so that the efficiency is remarkably reduced.

Therefore, the present applicant has proposed a method of increasing the strength of a metal member which can surely improve the surface roughness and the fatigue strength and can easily perform the work more efficiently. See JP-A-8-73930). In this conventional technique, a liquid in which glass beads are mixed is ejected onto a metal member, so that the glass beads have directivity and accurately collide with a desired surface of the metal member, and the metal member surface is compressed. The residual stress is reliably applied, and the surface polishing is effectively performed.

[0005]

By the way, a nozzle for ejecting a liquid mixed with glass beads to a metal member is provided with respect to the metal member held at a projection station.
It is positioned and arranged relatively close. This is because it is necessary to surely project the mixed jet of the glass beads and the liquid onto a desired surface of the metal member.

However, since the nozzle is arranged close to the metal member, if the metal member is automatically loaded and unloaded from the projection station using the transport mechanism, the transport mechanism interferes with the nozzle. There is a risk. As a result, a mechanism for positioning the nozzle with respect to the metal member and a mechanism for moving the nozzle to a position where the nozzle does not interfere with the operation of the transport mechanism are separately required, which leads to a problem that equipment becomes complicated and large. is there.

SUMMARY OF THE INVENTION The present invention solves this kind of problem, and precisely moves a nozzle to a position for positioning with respect to a metal member and to a position which does not interfere with the transfer operation of the metal member. An object of the present invention is to provide an apparatus for increasing the strength of a metal member that can be effectively simplified.

[0008]

In order to solve the above-mentioned problems, according to the present invention, a nozzle for projecting a mixed jet of glass beads and a liquid toward a metal member is provided with a distance required for projecting the mixed jet. Only the projection position separated from the metal member and the retreat position outside the interference range of the operation by the transport mechanism are configured to be able to move forward and backward. That is, the driving means
At one end position, the nozzle is positioned at the projection position, and at the other end position, the nozzle is transported out of the operation interference range of the transport mechanism and positioned.

As a result, it is only necessary to use a single drive means, and the structure can be simplified at a stroke, and the metal member can be automatically transported, so that the entire processing operation can be easily automated. .

[0010] The driving means includes a positioning member capable of selectively setting the projection position of the nozzle corresponding to various different metal members. Therefore, the nozzle can be properly positioned with respect to various kinds of metal members, and the processing quality is improved, and the versatility is excellent. In this case, the positioning member has a plurality of stoppers having different lengths for restricting the movement of the linear actuator constituting the driving means in one direction. This effectively simplifies the configuration of the driving means.

Further, the projection mechanism includes a slide unit capable of moving the nozzle in a direction orthogonal to the projection direction of the mixed jet. For this reason, by moving the nozzle while rotating the metal member, it is possible to perform an effective treatment on the surface of the metal member in a short time, thereby improving the quality and productivity.

[0012]

FIG. 1 is a schematic front view of a strengthening device 10 according to an embodiment of the present invention, FIG. 2 is a schematic side view of the strengthening device 10, and FIG. FIG. 1 is a schematic plan view of the high-strength device 10.

The high-strength apparatus 10 includes a casing 14 mounted on a base 12, and a metal member, for example, a gear 18 is provided between the casing 14 and the work transport conveyor 16. Work transfer conveyor 1
A transfer mechanism 20 for transporting the sheet to and from the transfer mechanism 6 is provided.

The transfer mechanism 20 includes a guide member 22 supported on the casing 14 and extending in the direction of the arrow X perpendicular to the transfer direction of the work transfer conveyor 16. The guide member 22 is provided with a self-propelled slide base 24. Are arranged to be able to advance and retreat. The slide base 24 is provided with a loading means 26 oriented downward in the vertical direction and a payout means 28 oriented in a direction inclined from the vertical direction. The charging means 26 and the dispensing means 28 include cylinders 30, 32, respectively.
An opening / closing claw portion 34 and a payout opening / closing claw portion 36 are provided, which are movable back and forth through the interface. The open / close claw portions 34, 3
Numeral 6 is capable of freely entering a drying / removing chamber 42 described later formed in the casing 14.

As shown in FIG. 4 to FIG.
, A partition mechanism (transport mechanism) 44 for partitioning the interior thereof into a high-strength processing chamber 40 and a drying / removing chamber 42, and the gear 18 mounted on the partition mechanism 44 to position and hold the gear 18 at the projection station S1 and the drying station S2. First and second holding mechanisms 46 and 48 to be provided, and the high-strength processing chamber 40 and the drying / removing chamber 42 provided in the partition mechanism 44.
First and second drying mechanisms 50, 52 that can be arranged alternately
And a projection mechanism 54 disposed in the high-strength processing chamber 40.
Further, a washing water supply means 56 and a fixed drying mechanism 58 provided in the drying attachment / detachment chamber 42 are provided.

As shown in FIGS. 2, 6, and 7, the partitioning mechanism 44 includes a motor 60 disposed outside the casing 14, and a transmission means 61 such as a belt pulley or a gear train is attached to the motor 60. The rotation shaft 62 is connected via the. The rotating shaft 62 is fixed to the rotating plate 64,
The turning board 64 is rotatably supported on the wall of the casing 14 via a bearing 65. A shaft 66 extends from the center of the turntable 64, and a pair of partition plates 68 and 69 are provided on the shaft 66 so as to extend radially outward (see FIG. 5).

The first and second holding mechanisms 4 are spaced apart from each other by a predetermined distance at a symmetrical position from the center of rotation of the turntable 64.
6, 48 are supported. As shown in FIG. 6, each of the first and second holding mechanisms 46 and 48 has a grip 70 on which the gear 18 can be detachably attached. Outside the casing 14, the first or second holding mechanism 4 disposed in the high-strength processing chamber 40 is provided.
Rotating means 72 connected to the first and second high-strength processing chambers 40 to rotate the gear 18 only is provided.

The turning means 72 includes a rotation drive source 74,
A spline shaft 76 is attached to the drive shaft 74a of the rotary drive source 74.
Are linked. The spline shaft 76 is engaged with a spline 80 formed on an inner peripheral surface of a piston member 78 constituting a cylinder. A connecting portion 82 is provided at the tip of the piston member 78, and the connecting portion 82 is freely connectable to the rotating shafts (not shown) of the first and second holding mechanisms 46 and 48.

As shown in FIG. 5, the first drying mechanism 50 includes
First and second dry air supply means 84 and 86 are provided on one surfaces 68a and 69a of the partition plates 68 and 69, respectively.
As shown in FIG. 5 and FIG.
Has a tube 90 fixed to one surface 68a of the partition plate 68 via a mounting member 88 and extending in parallel with the shaft 66. A plurality of air nozzles 92 are arranged in the tube body 90 at predetermined intervals along the axial direction (the direction of the arrow X) and arranged in a plurality of rows (three rows) in the circumferential direction. Each position is set toward the gear 18 arranged in the drying / removing chamber 42.

As shown in FIG. 7, one end of an air supply pipe 94 is connected to an end of a pipe 90, and the other end of the air supply pipe 94 is connected to a ventilation switching means 9 provided at an end of a shaft 66.
6. The ventilation switching means 96 includes a rotating portion 100 that rotates integrally with the shaft 66 and has an air passage 98 formed therein, and a fixed portion 104 that is disposed on the outer periphery of the rotating portion 100 via a bearing 102. Have. The fixing portion 104 is provided with an air port 106 connected to an air supply source (not shown), and only when the first drying air supply means 84 is disposed in the drying attachment / detachment chamber 42, the air passage 98 Through the first
The drying air supply means 84 can be supplied with the drying air.

The second drying air supply means 86 has substantially the same configuration as the first drying air supply means 84, and as shown in FIG.
a is provided with a tube body 110 held by a. A plurality of air nozzles 112 are fixed to the pipe 110 at predetermined intervals in the axial direction and are arranged in three rows in the circumferential direction, and the end of the pipe 110 constitutes a ventilation switching means 96. It is connected to the rotating unit 100. Second drying air supply means 86
Is supplied with the drying air from the ventilation switching means 96 only when it is placed in the drying / removing chamber 42.

The second drying mechanism 52 includes first and second drying air supply means 114 and 116 mounted on the other surfaces 68b and 69b of the partition plates 68 and 69. The first and second dry air supply means 114, 116
It is configured in the same way as the drying air supply means 84 and 86, and the same components are denoted by the same reference numerals and detailed description thereof will be omitted. First and second dry air supply means 114,
116 is supplied with the drying air from the ventilation switching means 96 only when it is arranged in the drying / removing chamber 42.

As shown in FIGS. 3 and 8, the projection mechanism 54 includes a slide unit 120 that is movable in the axial direction of the gear 18 (the direction of the arrow X), which is a direction orthogonal to the projection direction. The slide unit 120 has a motor 122 fixed to the outside of the casing 14.
Ball screw 124 connected to the second drive shaft (not shown)
Are fixed to the outside of the casing 14
6 so as to be rotatable (see FIG. 8). The ball screw 124 is screwed into a slide base 128, and the mounting plate 130 is fixed to the slide base 128.

As shown in FIG. 9 and FIG.
The bottom of a cylinder (linear actuator) 132 constituting the driving means 131 is fixed to 30.
The guide cylinders 134, 13 are arranged in parallel with the cylinder 132.
6 are provided. The cylinder 132 is used for a nozzle 1 described later.
74 is moved forward and backward to a projection position P1 separated from the gear 18 by a distance necessary for projecting the mixed jet 250 (described later) at the projection station S1, and to a retreat position P2 outside the interference range of the operation of the partition mechanism 44. (See FIGS. 5 and 9).

A connecting plate 140 is fixed to a piston rod 138 extending upward from the cylinder 132. Guide rods 142a, 142b are provided at both ends of the connecting plate 140.
Of the guide rods 142a, 142
b is inserted into the guide cylinders 134 and 136, and the other ends thereof extend downward. Locking member 1 on connecting plate 140
On the other hand, the nozzle position adjusting means 146 is mounted on the upper part of the guide cylinder 134.

As shown in FIG. 10, the nozzle position adjusting means 146 includes a rotating member 148 rotatably disposed above the guide cylinder 134, and the rotating member 148 is fixed via a set screw 150. And can be fixed at a predetermined position. The rotating member 148 has a plurality of, for example, eight stoppers 152a to 152h separated from the center of rotation by equal angular intervals.
Is provided. Each of the stoppers 152a to 152h is set to a different length, and one of the stoppers abuts on the locking member 144 of the connecting plate 140 so that the position of the nozzle 174 described later corresponds to the shape of the various gears 18 and the like. Selectively position.

The guide rods 142a, 142b are covered with bellows-like protection members 154a, 154b at portions protruding downward from the guide cylinders 134, 136, and have a predetermined length in the direction of arrow X in the casing 14. It is inserted into the high-strength processing chamber 40 through the thus formed elliptical opening 156 (see FIG. 3). Guide rods 142a, 142b
A support base 158 is fixed to the lower end of the support base 158.
An umbrella-shaped protective cover 160 is provided at the lower part of 8.

As shown in FIG. 9, the tube 1
The high-pressure water supply water pipe 164 connected to a high-pressure pump (not shown) is provided on the upper side of the pipe 162.
Is connected. An opening / closing valve 168 for turning ON / OFF the introduction of water 166 through a water pipe 164 is provided at an upper portion of the pipe 162, and a glass bead 170 is provided on the water 166 at a lower portion of the pipe 162. A mixing chamber 172 for mixing is connected. A nozzle 174 is provided below the mixing chamber 172, and a glass bead supply mechanism 178 is connected to the mixing chamber 172 via a pipe 176.

As shown in FIGS. 1 and 2, the glass bead supply mechanism 178 has a hopper 180 attached to the base 12. The hopper 180 is formed in a funnel shape whose diameter is reduced downward, and a pipe 176 is connected to a lower portion thereof.

As shown in FIGS. 5 and 6, the washing water supply means 56 is provided with a water pipe 200 fixed to the casing 14.
The water pipe 200 is provided with a jet port 202 for jetting the cleaning water toward the gear 18 disposed in the high-strength processing chamber 40. The spout 202 is connected to the water pipe 2
The cleaning water supply source (not shown) is connected to the cleaning water supply source via a plurality of conduits 204 connected to the water supply line 00.

As shown in FIGS. 5 and 6, the fixed drying mechanism 58 includes an air pipe 206 fixed to the casing 14.
The air pipes 206 are provided with air nozzles 2 that are separated by a predetermined distance in the axial direction and are arranged in a plurality of rows in the circumferential direction.
08 is provided. A plurality of pipes 210 connected to a drying air supply unit (not shown) are connected to the air pipe 206.

As shown in FIGS. 1, 3 and 5, the casing 14 is provided with shutter means 220 for opening and closing the upper part of the drying / removing chamber 42. Shutter means 22
0 is provided with a cylinder 222 fixed to the upper part of the casing 14 in the direction of the arrow X, and at both upper and lower ends of the bent opening 224 of the casing 14 in the direction of the arrow X in parallel with the cylinder 222. Extending guide rails 226, 228 are provided. Guide rail 22
6, 228, a shutter member 230 that is bent in a V-shape in cross section is disposed so as to be able to advance and retreat, and a piston rod 222a extending from a cylinder 222 is provided with a shutter member 23.
It is fixed to 0.

As shown in FIG. 3, on the side of the base 12,
The mist collecting means 240 is placed. One end of a duct 242 is connected to the mist collection means 240, and the other end of the duct 242 is connected to an upper portion of the casing 14 corresponding to the high-strength processing chamber 40.

The operation of the thus-configured high-strength apparatus 10 will be described below.

First, as shown in FIGS. 1 to 3, the slide base 24 constituting the transfer mechanism 20 is disposed above the work transport conveyor 16, and the gear after the high-strength processing is gripped by the payout means 28. The gears 18 are paid out onto the work transfer conveyor 16, while the gears 18 on the work transfer conveyor 16 before the high-strength processing are gripped by the input means 26. The gear 18 on the work transfer conveyor 16 is
After gear cutting is performed in advance by cutting, carburizing and quenching is performed.

The slide base 24 is transferred onto the casing 14 along the guide member 22. Shutter means 2
Under the action of the shutter 20, the shutter member 230
4 with the opening 224 open,
The opening / closing claw portion 36 enters the drying / removing chamber 42 under the action of the cylinder 32 constituting The opening / closing claw portion 36 is, for example,
After gripping and removing the gear 18 after the processing, which is gripped by the first holding mechanism 46, the opening / closing claw portion 34 enters the drying attaching / detaching chamber 42 under the action of the cylinder 30 constituting the charging means 26, The new gear 18 gripped by this is held by the first holding mechanism 46. Further, the opening / closing claw portion 34 is detached from the casing 14, and the slide base 24 is transferred onto the work transport conveyor 16.

On the casing 14 side, shutter means 22
Under the action of the cylinder 222 constituting the shutter 0, the shutter member 230 is guided by the guide rails 226 and 228 and moves toward the opening 224, and closes the opening 224. Next, under the action of the motor 60 constituting the partitioning mechanism 44, the rotating plate 64 and the shaft 66
Are turned 180 ° together.

For this reason, the first holding mechanism 46 is integrated with the rotating disk 64 and the projection station S on the high-strength processing chamber 40 side.
The gear 18 that has been placed in the first holding mechanism 48 and has been subjected to a high-strength process described later and that has been subjected to the high-strength processing described later is placed in the drying station S2 on the drying attachment / detachment chamber 42 side. On the side of the high-strength processing chamber 40, as shown in FIG. 6, the piston member 78 constituting the rotating means 72 is displaced in the direction of the arrow X1 under the action of hydraulic pressure, and the connecting portion 82 is connected to the first holding mechanism 46. Is done.

While the turntable 64 is rotating, the nozzle 174 constituting the projection mechanism 54 is arranged at the position indicated by the two-dot chain line (retreat position P2) in FIGS. When the moving platen 64 is stopped, the guide rod 14 is integrated with the piston rod 138 under the action of the cylinder 132.
2a and 142b are displaced in the direction of arrow A. For this reason, the nozzle 174 is displaced in the direction of arrow A via the support base 158, and the nozzle 174 moves from the retracted position P2 to the projection position P.
Move to 1 for positioning.

Then, the gear 18 held by the first holding mechanism 46 rotates in a predetermined direction in the high-strength processing chamber 40 under the driving action of the rotary drive source 74 constituting the rotating means 72. At this time, the projection mechanism 54 uses the slide unit 12
The ball screw 124 is rotated via the motor 122 constituting the motor 0, the slide base 128 meshing with the ball screw 124 moves in the direction of the arrow X1 in FIG.
Is driven.

Thus, under the action of a high-pressure pump (not shown), water 166 is pressure-fed to the pipe 162 via the water pipe 164, and the water 166 is introduced into the mixing chamber 172, and the negative pressure is introduced into the pipe 176. Generate. Therefore, the hopper 1 constituting the glass bead supply mechanism 178
The glass beads 170 are sucked from the pipe 80 via a pipe 176, and the mixed jet 2 of water 166 and the glass beads 170 is sucked.
50 is projected from the nozzle 174 toward the gear 18.

Therefore, as shown in FIG. 11, the water 1 flows from the nozzle 174 toward the gear 18 rotating in a predetermined direction.
The mixed jet 250 of the glass beads 170 and the glass beads 170 collide with directivity, and the nozzle 174 moves at a predetermined feed speed in the axial direction of the gear 18 (the direction of the arrow X1). Thereby, the mixed jet 250 can be accurately collided with a desired position of the gear 18 in a short time, and the effect of improving quality and productivity can be obtained.

After the operation by the projection mechanism 54 is completed, as shown in FIG. 5, the washing water is supplied from a plurality of conduits 204 to the water pipe 200 constituting the washing water supply means 56, and provided in the water pipe 200. The cleaning water is supplied from the jet port 202 to the gear 18. The washing water reliably removes the crushed dust of the glass beads 170 attached to the gear 18 and the polished dust caused by the glass beads 170.

After the cleaning operation of the gear 18 in the high strength processing chamber 40 is completed, the cylinder 13
2 is driven. For this reason, the piston rod 138
5 and 9, the nozzle 174 is displaced to the position indicated by the two-dot chain line, and the nozzle 174 moves from the projection position P1 to the retreat position P2 and is positioned.

In this state, the motor 60 constituting the partitioning mechanism 44 is driven, and the rotating plate 64 and the shaft 66 are rotated by 180 ° integrally with the rotating shaft 62. Therefore, as shown in FIG. 5, the first holding mechanism 46 that holds the gear 18 on which the strength enhancement processing has been completed is disposed in the drying / removing chamber 42. On the other hand, the second holding mechanism 48 holding the new gear 18 via the transfer mechanism 20 while the gear 18 is being subjected to the high-strength treatment as described above causes the new holding mechanism 48 to operate under the action of the partition mechanism 44. Gear 18 is disposed in the high-strength processing chamber 40.

In the drying / removing chamber 42, the first drying mechanism 50 and the fixed drying mechanism 58 are driven. That is, as shown in FIG.
When pressurized air is supplied to each of the air ports 106 as dry air, the pressurized air is supplied to the air passage 9 of the rotating unit 100.
8, it is supplied only to the first drying mechanism 50 arranged in the drying attachment / detachment chamber 42. The pressure air is supplied to the air supply pipe 9.
Tube 90 constituting the first dry air supply means 84 via
After being sent to the gears 18 held by the first holding mechanism 46 from the plurality of air nozzles 92, the pipes 110 constituting the second dry air supply means 86
From the gear 18 through a plurality of air nozzles 112.

On the other hand, similarly, pressurized air is supplied to the fixed drying mechanism 58, and the pressurized air is injected from a plurality of air nozzles 208 toward a predetermined portion of the gear 18. Therefore, the gear 18 that has been subjected to the cleaning processing is subjected to the drying processing smoothly and in a short time via the first drying mechanism 50 and the fixed drying mechanism 58.

Next, after the drying process is performed in the drying / removal chamber 42, the shutter member 2 constituting the shutter means 220 is formed.
30 moves to open the opening 224 of the casing 14. Then, the payout means 2 constituting the transfer mechanism 20
8 and the input means 26 sequentially enter the drying / removal chamber 42 from the opening 224, take out the gear 18 after the drying process from the second holding mechanism 48, and add a new gear 18 to the second holding mechanism 48. Is held.

In this case, in this embodiment, as shown in FIG. 5 and FIG.
At the advancing end (in the direction of arrow A), the nozzle 174 is fed to the gear 18 arranged at the projection station S1 by the mixed jet 2
The nozzle 174 is arranged at a retracted position P2 outside the interference range of the operation of the partitioning mechanism 44 at the forward end (in the direction of arrow B) while the nozzle 50 is arranged at the projection position P1 for effectively projecting the nozzle 50. Thus, there is no need to separately provide a mechanism for positioning the nozzle 174 with respect to the gear 18 and a mechanism for retracting the nozzle 174 out of the interference range of the operation of the partition mechanism 44. Only need to be used.

Accordingly, an effect is obtained that the overall configuration of the projection mechanism 54 is simplified at a stroke. Moreover, the gear 18
Is automatically transferred to the projection station S1 and the drying station S2 via the partition mechanism 44 while being held by the first and second holding mechanisms 46 and 48. For this reason, automation of the entire processing work can be easily performed.

By the way, when processing various kinds of gears 18, it is necessary to adjust the position of the nozzle 174 according to the shape of each gear 18, especially the change of the diameter.
This is for ensuring a proper separation distance of the nozzle 174 from the surface of each gear 18 and performing high quality processing on the surface of the gear 18.

At this time, in this embodiment, the nozzle position adjusting means 146 constituting the projection mechanism 54 is
A rotating member 148 is provided on the upper part of the rotating member 4 (see FIGS. 9 and 10). Then set screw 1
The rotation member 50 is relaxed, and the rotation member 148 is rotated to arrange, for example, the longest stopper 152 a among the stoppers 152 a to 152 h provided on the rotation member 148 in correspondence with the locking member 144 of the connection plate 140. Let it. In this position, the rotating member 148 is moved through the guide cylinder 13 via the set screw 150.
4 is fixed to the upper part.

Next, as shown in FIG.
When the piston rod 138 is displaced in the direction of arrow A under the action of 32, the longest stopper 152a abuts on the locking member 144 of the connecting plate 140. For this reason, the nozzle 174
Are arranged at a desired distance from the outer peripheral surface of the large-diameter gear 18a, and the mixed jet 250 can be effectively projected toward the gear 18a.

As described above, in this embodiment, the rotating member 1
The nozzle 174 is positioned at the projection position P1 that is separated from the various gears 18 (18a) by a desired distance only by rotating the 48 to selectively dispose the stoppers 152a to 152h corresponding to the locking members 144. It becomes possible to do. Therefore, the nozzle 174 is connected to the various types of gears 18 (1
8a) can be easily and properly positioned, thereby improving the processing quality and having excellent versatility. Moreover, the nozzle position adjusting means 14
6 simply includes a guide cylinder 134 having stoppers 152a to 152h having different lengths, and the configuration of the nozzle position adjusting means 146 is effectively simplified.

[0055]

As described above, in the apparatus for increasing the strength of a metal member according to the present invention, the nozzle for projecting the mixed jet of the glass beads and the liquid toward the metal member is provided at one end position of the driving means. The driving unit is disposed at a projection position suitable for projecting the mixed jet, and at the other end position of the driving unit, at a retreat position outside an interference range of an operation by a transport mechanism. This makes it possible to position the nozzles at the projection position and the retracted position only by using a single driving unit, and the configuration is simplified at a stroke. In addition, the metal member can be automatically conveyed, and automation of the entire processing operation can be easily performed.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a high-strength apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic side view of the high-strength device.

FIG. 3 is a schematic plan view of the high-strength device.

FIG. 4 is an explanatory perspective view of a casing constituting the high-strength device.

FIG. 5 is a sectional view showing the inside of the casing.

FIG. 6 is a cross-sectional plan view showing the inside of the casing.

FIG. 7 is a sectional front view showing the inside of the casing.

FIG. 8 is an explanatory plan view of a projection mechanism constituting the high-strength device.

FIG. 9 is an explanatory front view of the projection mechanism.

FIG. 10 is a perspective view of the projection mechanism.

FIG. 11 is an operation explanatory view of the projection mechanism.

FIG. 12 is an explanatory diagram of an operation of a nozzle position adjusting means constituting the projection mechanism.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... High-strength apparatus 14 ... Casing 18, 18a ... Gear 20 ... Transfer mechanism 40 ... High-strength processing chamber 42 ... Drying attachment / detachment chamber 44 ... Partitioning mechanism 46 ... 1st holding mechanism 48 ... 2nd holding mechanism 50 ... 1st Drying mechanism 52 Second drying mechanism 54 Projection mechanism 56 Cleaning water supply means 58 Fixed drying mechanism 120 Slide unit 131 Drive unit 132 Cylinder 140 Connection plate 144 Locking member 146 Nozzle position adjusting means 148 ... Rotating member 152a-1
52h: Stopper 162: Tube 174: Nozzle

Claims (4)

[Claims] 1. A holding mechanism for positioning and holding a metal member with respect to a projection station, and a mixing jet of glass beads and a liquid toward the metal member at the projection station to increase the strength of the surface of the metal member. A projection mechanism for projecting, and a transport mechanism for unloading the metal member to the projection station and further unloading the mixed member from the projection station after projecting the mixed jet, wherein the projection mechanism directs the mixed jet toward the metal member. A nozzle that projects and moves the nozzle between a projection position that is separated from the metal member by a distance necessary for projecting the mixed jet at the projection station and a retreat position that is outside the interference range of the operation of the transport mechanism. An apparatus for enhancing the strength of a metal member, comprising: a driving means capable of: 2. A high-strength apparatus according to claim 1, wherein said driving means includes a nozzle position adjusting means capable of selectively setting a projection position of said nozzle corresponding to various different metal members. Characteristic device for strengthening metal members. 3. A high-strength apparatus according to claim 2, wherein said driving means includes a linear actuator, and said nozzle position adjusting means controls said linear actuator in order to regulate movement of said linear actuator in one direction. Characterized by having a plurality of stoppers having different lengths that can be arbitrarily arranged at the restricting position. 4. The high-strength apparatus according to claim 1, wherein said projection mechanism includes a slide unit capable of moving said nozzle in a direction orthogonal to a projection direction of said mixed jet. High strength device.