KR100735090B1 - Metal-spraying method for coating-material to sliding apparatus and system therewith - Google Patents

Abstract

A spraying method and system of a coating material of a sliding member are provided to improve productivity by continuously spraying the coating material on plural coated members at a time, and to form an even coating layer while reducing heat transformation of a finished product. The spraying system includes: a coating material sprayer(100) rotatably fixed to the ground, and having a spray gun for spraying a coating material of a sliding member in a vertical direction; and a rotary holding device(200) comprising a support fixed and supported to the ground, a circular rotary plate rotatably installed on the support, and a fixing jig(230) installed on the periphery of the rotary plate so that a coated member is selectively connected to upper and lower surfaces thereof. The system has at least one rotary holding device so that the periphery of the rotary plate comes in contact with the circumferential surface formed by the spray gun in rotation of the coating material sprayer.

Description

Metal-spraying method for coating-material to sliding apparatus and system therewith}

1 is a view schematically showing the configuration of a coating material spray system of a sliding member according to an embodiment of the present invention.

Figure 2 is a side view showing a coating material injector of the sliding member employed in the coating material injection system of the sliding member shown in FIG.

Figure 3a, b is a side view showing before and after the movement of the horizontal member employed in the coating material injector of the sliding member employed in FIG.

Figure 4a, b is a side view showing before and after the movement of the position adjustment member employed in the coating material injector of the sliding member employed in FIG.

Figure 5 is a side view showing a rotary holding device employed in the coating material injection system of the sliding member shown in FIG.

6 is a cross-sectional view showing the coupling of the rotating plate and the fixing jig employed in the rotary holding device shown in FIG.

Figure 7 is a state diagram showing the state of use of the coating material spray system of the sliding member shown in FIG.

8 is a flow chart showing the flow of coating material spraying method of the sliding member according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100: coating material injector of the sliding member

110: holder

120: main body

123: gearbox

130: horizontal arm

131: moving car

133: position adjusting member

140: spray gun

200: rotary holding device

210: holder

220: rotating plate

230: Fixture Jig

231: jig body

300: member to be coated

The present invention relates to a coating material spraying method and a spraying system of the sliding member, and more particularly, the sliding portion to obtain a uniform coating layer by a number of rotational spraying on a plurality of the coating member by using the coating material sprayer and the rotary holding device of the sliding member. A method for spraying a coating of ash and an injection system.

The sliding member refers to a member used in a place where friction occurs due to driving, such as a piston, a crankshaft, a vehicle's mission device, and the like.

Therefore, in order to improve the lubricity and abrasion resistance in preparation for the damage of the sliding member due to friction, the surface of the contact is made.

This general method of surface treatment is required to increase the lubricity, heat resistance and abrasion resistance according to the application after the heat treatment and roughing, finishing, finishing to form the structure of the parts formed by the casting, forging and sintering process. The metal or non-metal material (molybdenum, aluminum, nickel, ceramics, etc.) is supplied in a powder or wire shape to be coated by a spraying or cold spraying method.

As an example, in the method of spraying a coating material such as molybdenum, conventionally, a plurality of jigs having a member to be coated are installed on a conveyor belt moving in a horizontal or vertical direction, and side coating of the coating material in a horizontal direction is performed. The way it worked.

In this case, since the thickness of the coating layer required for one-time spraying should be formed, the spraying time becomes long, resulting in a problem that the quality between the products is not uniform.

In addition, there is a problem that the sliding member is vulnerable to thermal deformation due to the delay of the injection time.

On the other hand, not only the production per hour is significantly reduced, expensive coating material is wasted and there is an uneconomical aspect.

Embodiments of the present invention have been made to solve the problems described above, the present invention is a coating material spraying method and spraying of the sliding member to be coated by continuously spraying a coating material on a plurality of the coating member at a time, the productivity is improved It is related to the system.

Furthermore, it is economical by using the coating material of the sliding member efficiently and is related with the coating material spraying method and spraying system of the sliding member for obtaining the uniform coating layer, while reducing the thermal deformation of the finished product.

In order to achieve the above object, the present invention is rotatably fixed to the ground, the coating material injector of the sliding member having a spray gun is sprayed in the vertical direction the coating material of the sliding member; And a fixing jig fixed to the ground, a fixing plate rotatably installed on the holder, and a fixing jig having a coupling part selectively coupled to upper and lower surfaces on a circumference of the rotating plate. Rotating holding device is included, at least one rotary holding device is sprayed on the circumferential surface of the rotating plate formed on the circumferential surface formed by the spray gun when the main body of the coating material injector of the sliding member is sprayed coating the sliding member Provide a system.

In addition, a fixing bolt coupled to the fitting groove of the fixing jig and a protrusion bolt inserted into the fitting hole of the fixing jig are provided on the rotating plate such that the fixing jig is detachably coupled to the circumference. It provides a coating material injection system of the sliding member.

In addition, the coating material injector of the sliding member is fixed to the ground is supported; A main body rotatably installed on the fixing base; A horizontal arm connected to the main body in a lateral direction; And a spray gun connected to the end of the horizontal arm so as to be movable upward and downward, and coupled to spray the coating material in the vertical direction. The coating material spraying system of the sliding member is provided.

In addition, the spray gun provides a coating material spraying system for a sliding member, characterized in that the spray nozzle is installed to face in the up, down direction so that the coating material is sprayed simultaneously in the up, down direction.

On the other hand, the installation step of fixing at least one fixing jig for mounting the member to be coated on the circumferential surface of the rotating plate of the at least one rotary holding device; An adjusting step of adjusting the position of the spray gun of the coating material injector of the sliding member in accordance with the position of the member to be coated installed in the fixing jig; A spraying step of growing a coating layer on the member to be coated by spraying the coating material with the coating material injector of the sliding member while rotating the rotary holding device; And a collecting step of separating the fixing jig from the rotary holding device after cooling the finished member to be grown.

Furthermore, after the spraying step, when the growth of the coating layer is completed, the coating material spraying method of the sliding member further comprises a moving step of rotating the coating material injector of the sliding member toward the adjacent rotary holding device.

Hereinafter, through the preferred embodiment of the accompanying drawings, looks at the configuration and operation of the coating material injection method and the injection system of the sliding member according to the present invention in more detail.

1 is a view schematically showing the configuration of the coating material injection system of the sliding member according to an embodiment of the present invention, Figure 2 is a coating material injector of the sliding member employed in the coating material injection system of the sliding member shown in FIG. Figure 3a, b is a side view showing before and after the movement of the horizontal member employed in the coating material injector of the sliding member employed in Figure 2, Figures 4a, b are positions employed in the coating material injector of the sliding member employed in Figure 2 Figure 5 is a side view showing before and after the movement of the adjustment member, Figure 5 is a side view showing a rotary holding device employed in the coating material injection system of the sliding member shown in Figure 1, Figure 6 is employed in the rotary holding device shown in Figure 5 It is a cross-sectional view showing the combination of the rotating plate and the fixing jig, Figure 7 is a state diagram showing the state of use of the coating material injection system of the sliding member shown in FIG.

However, reference numeral 127 in the drawings is a drum for winding and storing a wire-shaped coating material used for the spray gun 140.

Coating material injection system 1 of the sliding member according to an embodiment of the present invention is a coating material injector 100 of the sliding member; And a rotary holding device 200.

At this time, the coating material injector 100 of the sliding member is fixed to 110; Main body 120; Horizontal arm 130; And spray gun (gun, 140); is provided.

The holder 100 is fixed to the ground and the bottom plate 111 for supporting the load of the main body 120, horizontal arm 130, the injection gun 140, and in the center for coupling with the main body 120 The insertion part 112 in which the insertion groove 112a is formed is provided.

On the other hand, the plane 121 is formed on the upper portion of the main body 120, the rotating shaft 122 is formed on the lower portion is rotatably coupled to the insertion groove (112a) of the fixing base (110).

At this time, the rotation of the main body 120 is made by the user to rotate arbitrarily, or a main body rotation motor (not shown) is mounted on the lower or side surface of the insertion hole (112a), the main body rotation motor and the rotating shaft ( 122) may be linked to be made by an external power source.

In addition, at least one auxiliary fixture 113 is coupled to the bottom plate 111 and the insertion part 112 in order to firmly support the insertion part 112 on the outer side of the insertion part 112. Do.

A gear box 123 is installed at the center of the plane 121 of the main body 120 and rotates in engagement with a gear (not shown) in the gear box 123 in an outward direction from one surface of the gear box 123. The first ball screw 126 is installed to protrude, and the first ball screw support member 126b, which is supported by the end of the first ball screw 126, is installed at the end of the main body 120.

At this time, the gearbox 123 is a worm reducer of a known technique for lowering the number of revolutions of the drive motor 124 which will be described later.

In addition, a guide rail 125 for restraining the movement of the moving vehicle 131, which will be described later, is installed on the plane 121 of the main body 120, in the same direction directly below the first ball screw 126. To face.

In addition, the driving motor 124 for rotating the gears in the gear box 126 is mounted on the opposite side of the direction in which the first ball screw 126 of the gear box 123 protrudes.

In addition, a control unit 123a having an on / off switch for controlling the driving motor 123 and a switching switch for switching the rotation direction of the first ball screw 126 on one side of the gear box 123. Is installed.

On the other hand, the horizontal arm 130 is a mobile vehicle 131 that is interlocked with the first ball screw 126; A horizontal member 132 coupled to the upper surface portion 131c of the moving vehicle 131 and extending outwardly of the main body 120; It is coupled to the outer end of the horizontal member 132, the position adjusting member 133 for adjusting the lifting of the injection gun 140; is provided.

The bottom portion 131a of the moving vehicle 131 is coupled to be moved inward and outward from the center of the guide rail 125 and the main body 120, and the central column 131b is the first ball screw. It is coupled with the first ball screw nut holder 126a interlocked with 126, and the upper surface portion 131c is coupled with the lower end of the horizontal member 132.

In this case, the coupling between the guide rail 125 and the bottom surface portion 131a of the transport vehicle 131 may include a groove formed in the guide rail 125 so as to be transferred to the bottom surface portion 131a of the vehicle 131. Dragon wheels (not shown) is configured to be constrained to the groove is conveyed in the longitudinal direction, or the guide rail 125 is formed in a cylindrical shape and the transfer groove (not shown) in the bottom portion 131a of the moving vehicle 131 Is formed, and configured to be slidably coupled to the guide rail 125 may be applied a variety of restraining means for limiting the separation of the transport vehicle 131.

That is, when the driving motor 124 is rotated in one direction, the gear in the gear box 123, and the first ball screw 126 meshed with the gear is rotated, the first ball According to the rotation direction of the screw 126, the first ball screw nut holder 126a and the moving vehicle 131 coupled thereto move inward or outward.

In addition, the guide rail 125 prevents the bottom portion 131a of the moving vehicle 131 from being separated, so that the transport vehicle 131 is moved only along the longitudinal direction of the first ball screw 126. .

On the other hand, the one end of the horizontal member 132 is coupled to the position adjusting member 133 perpendicular to the ground, the lower end of the other end is coupled to the upper surface portion (131c) of the moving vehicle 131, the transport In accordance with the movement of the 131, it is possible to move in the inner and outer directions.

In addition, the position adjusting member 133 includes a support plate 133a coupled to the end of the horizontal member 132, a second ball screw 133b coupled to the support plate 133a in a vertical direction, and the second The upper and lower injection gun transfer arms 133c and 133d which are linked with the ball screw 133b and are transferred in the vertical direction are combined.

That is, the middle portion of the second ball screw 133b is rotatably coupled to the support plate 133a, the upper left screw is formed, the lower right screw is formed.

In addition, an upper injection gun 141 and a lower injection gun 142 are respectively fixed to one end of the upper and lower injection gun transfer arms 133c and 133d, and the other end is a thread of an upper or lower portion of the second ball screw 133b. Each of the formed portions are coupled to be slidably transported upward and downward.

At this time, the injection nozzle 141a of the upper injection gun 141 faces downward, and the injection nozzle 142a of the lower injection gun 142 faces upward, so that the injection nozzles 141a and 142a face each other. Is located.

In this case, since the upper and lower spray guns 141 and 142 are closer or farther from each other as the second ball screw 133b rotates, the spray nozzles 141a of the upper and lower spray guns 141 and 142 are moved. The spacing of 142a may be adjusted to adjust the injection distance to the member 300 to be coated.

On the other hand, the second ball screw 133b is further provided with a rotary knob 133e so that the user directly rotates, or controls the rotation direction of the motor, gear box and motor for rotating the second ball screw 133b. The control device may be provided.

On the other hand, the spray gun 140 may be selectively attached only to the upper or lower portion of the upper, lower spray gun transfer arms (133c, 133d) according to the operator's arbitrary choice.

On the other hand, Figure 5 is a side view showing a rotary holding device employed in the coating material injection system of the sliding member shown in FIG.

The rotary holding device 200 is a cradle 210; Rotating plate 220; And a fixing jig 230; is installed together with the coating material injector 100 of the sliding member, and a plurality of the coating member 300 is mounted on the fixing jig 230 to coat the coating material at once. It is a fixing device of the member to be coated 300 to apply.

The cradle 210 is fixed to the ground to support the rotating plate 220, the center portion is formed with a coupling groove 211 for coupling the rotating plate 220.

On the other hand, the rotating plate 220 has a circular plate shape, a lower hinge shaft 221 is formed to be rotatably connected to the coupling groove 211.

At this time, the hinge shaft 221 is equipped with a rotating motor 223 connected to the hinge shaft 221 and the belt on the side of the holder 210, the external motor supply to the rotating motor 223 The rotating plate 220 is rotated by.

On the other hand, as a means for rotating the rotary plate 220, the rotary motor 223 is located in the lower portion of the coupling groove 211 is directly coupled to the hinge shaft 221 to rotate the rotary plate 220 It can be variously changed according to the arbitrary choice of an operator, such as having a structure to rotate.

In addition, a jig fixing member 222 is provided on the circumferential surface portion of the rotating plate 220 to allow the fixing jig 230 to be mounted thereon.

At this time, the jig fixing member 222 is fixed bolt 222a is inserted into the fitting groove 234 of the fixing jig 230 to be described later, and the fitting of the fixing jig 230 to be described later. Protruding bolt 222b fitted to the ball 235 is provided.

In addition, the fixing bolt 222a has a bolt head of the fixing bolt 222a at a position approximately 2 to 3 mm higher than the thickness of the fixing jig 230 so that the fixing jig 230 is easily detachable. Is located.

In addition, the protruding bolt 222b is installed on the rotating plate 220 at the position where the fitting hole 235 is located when the fixing jig 230 is inserted into the fixing bolt 222a.

In addition, the jig fixing member 222 may be variously changed according to any choice of a practitioner such as a general bolt and nut, tongs or magnets, in addition to the fixing bolt 222a and the protrusion bolt 222b.

The fixing jig 230 has an arc-shaped fitting groove 234 on the outside to be coupled to the rotating plate 220, a fitting hole 235 formed through the body, and a plurality of cavities 233 are formed. Plate-shaped jig body 231; And at least one fixing member 232 on the upper or lower surface of the jig body 231 to selectively fix the member to be coated 300.

Coupling between the fixing jig 230 and the jig fixing member 222, as shown in Figure 6, the fixing jig 230 is inserted and inserted while lying obliquely toward the fixing bolt 222a. When the groove 234 is in contact with the fixing bolt 234, by pressing the fixing jig 230 in the downward direction, the fitting hole 235 is inserted into the projection bolt 222b.

Thus, when the centrifugal force is generated by the rotation of the rotating plate 220, the protruding bolt 222b supports the fixing jig 230, so that the fixing jig 230 is not separated from the rotating plate 220. do.

On the other hand, the fixing bolt 222a and the protrusion bolt 222b forms an isometric angle at the center of the rotating plate 220, and the fixing jig 230 is densely arranged on the circumference of the rotating plate 220. Is installed along the width interval of the plurality of fixing jig 230 is preferably to be fixed.

The fastening bolt 222a, the projection bolt 222b and the fitting groove 234, the fitting hole 235 by using a plurality of fastening jig 230 to the rotary holding device 200 quickly Since it is removable, productivity is increased.

Meanwhile, the fixing member 232 may be variously changed according to the shape of the member 300 to be coated. Here, a case in which a shift fork of the transmission device of the vehicle becomes the member 300 to be fixed will be described.

The shift fork has a decompression hole formed therein and is coupled to a shift rod (not shown), and both ends of the shift fork are gently bent in one direction to protrude, and a coating layer is formed on the tip portion 301. Should be.

Accordingly, when the shift fork is fixed to the fixing jig 230, a cylindrical fixing member 232 is installed in the jig body 231 to be fitted into the pressure reducing hole, but the fixed member 300 is Make sure they are compact unless they overlap each other.

That is, when a plurality of fixing members 232 are installed on the jig body 231, a plurality of coated members are densely installed on the fixing jig 230.

At this time, one side of the jig body 231 to which the member to be coated 300 is not coupled is fixed to the circumferential end of the rotating plate 220 by using the jig fixing member 222, and the member to be coated 300 is The other side coupled is coupled to protrude outward of the circumference of the rotating plate 220.

The arrangement of the coating material injector system 1 of the sliding member using the coating material injector 100 and the rotary holding device 200 of the sliding member is as follows.

When the main body 120 of the coating material injector 100 of the sliding member rotates, at least one or more such that the circumferential surface of the rotating plate 220 is in contact with the circumferential surface formed by the spray guns 141 and 142 (in this embodiment) For example, the rotary holding device 200 of five rotary holding devices are installed.

That is, the rotary holding device 200 is positioned such that the upper and lower virtual extension lines 143 formed by the upper and lower spray guns 141 and 142 and the circumferential surface of the rotating plate 220 are in contact with each other, so that the fixing jig 230 is fixed. The coating material sprayed from the upper and lower spray guns 141 and 142 is provided through the cavity 233 formed at the outside thereof.

In this case, when the to-be-coated member 300 is densely fixed to the upper and lower surfaces of the fixing jig 230, the upper side of the to-be-coated member 300 fixed to the upper surface of the fixing jig 230 is fixed. The coating layer is grown with a coating material sprayed from the upper injection gun 141, the lower coating layer is passed through the member 300 and the cavity 223 fixed to the lower surface of the fixing jig 230. It is grown with a coating material sprayed from the lower spray gun 142.

In this manner, the upper and lower coating layers of the to-be-coated member 300 fixed to the lower surface of the fixing jig 230 are formed, respectively.

On the other hand, Figure 8 is a flow chart showing the flow of the coating material spray method of the sliding member according to an embodiment of the present invention.

Coating material spraying method of the sliding member according to an embodiment of the present invention consists of the installation step (S1), adjustment step (S2), spraying step (S3) and collecting step (S4).

The installation step (S1) is a step of installing the member to be coated 300 on the rotary holding device 200.

First, the plurality of coated members 300 are densely fixed to the upper and lower surfaces of the fixing jig 230 by using the fixing member 232.

At this time, when the user observes the coated surface of the member to be coated 300 from the upper or lower surface, any one member to be coated 300 by the fixing jig 230 and the other member to be coated 300 In order not to be obscured, it is important that the members to be coated 300 are staggered with each other.

The jig fixing member 222 is fixed to the circumferential surface of the rotating plate 220 of the rotary holding device 200 by fixing the plurality of fixing jigs 230 to which the member to be coated 300 is fixed.

Next, the adjusting step (S2) is a step of adjusting the position of the injection gun (141, 142) of the coating material injector 100 of the sliding member in accordance with the position of the member to be coated.

That is, when the position change of the upper and lower injection guns 141 and 142 is required according to the difference in the shape of the fixing jig 230 or the shape of the to-be-coated member 300 fixed to the fixing jig 230. The horizontal arm 130 is stretched and adjusted by using the drive motor 124 to adjust the injection position of the injection gun (141, 142), the interval between the coating member 300 and the injection gun (141, 142). Is adjusted by rotating the rotary knob 133e.

Next, the spraying step (S3) is a step of growing a coating layer on the coating member 300 by spraying the coating material to the coating material injector 100 of the sliding member while rotating the rotary holding device (200).

At this time, the coating guns 141 and 142 are connected to a path for transferring a heat source gas (acetylene, etc.), a supporting gas (oxygen), and a powder or wire-shaped coating material to spray the coating material.

In this case, when the width of the member to be coated 300 is wide, the spraying position and width are varied by stretching the horizontal arm 130 with the injection of the coating material or by adjusting the height of the spray guns 141 and 142. The coating layer is grown.

In this case, by the rotation of the rotary holding device 200, by coating a single injection of the coating material to the coating member 300 at the same time, and a coating layer is formed once per rotation of the rotating plate 220, There is an effect that a plurality of coating layers are formed.

In addition, since there is an effect of cooling every revolution, there is an advantage in reducing the thermal deformation in spraying a high-temperature coating material.

Next, the collecting step (S4) is a step of separating the fixing jig 230 from the rotary holding device 200 after cooling of the coated member 300 is finished.

Thereafter, the to-be-coated member 300 attached to the fixing jig 230 is collected at a separate place.

In addition, when at least two or more of the rotary holding device 200 is provided, when the growth of the coating layer is completed by passing the spraying step S3, the coating material injector 100 of the sliding member toward the neighboring rotary holding device 200 is completed. It is preferable to further include a moving step (S5) to perform a continuous spraying step by rotating and performing the spraying step (S3) again.

In this case, the already coated member 300 is collected, and the next member 300 is mounted in advance on the fixing jig 230, and then fixed to the rotary holding device 200. By directly mounting the injection jig 230, the productivity is greatly improved.

On the other hand, when the injection gun 140 is configured to face only in one of the upper direction or the lower direction, after the spraying on one surface of the fixing jig 230 is terminated the fixing jig 230 After mounting upside down, by spraying again, modification can be performed by any choice of the practitioner, such as to complete the growth of the coating layer of the member to be coated 300.

Since the present invention can be variously modified by those skilled in the art without departing from the scope of the claims claimed in the claims, the technical protection scope of the present invention is limited to the specific preferred embodiments described above. It is not limited.

According to the coating material injector of the sliding member, the coating material spraying system of the sliding member, and the coating material spraying method of the sliding member according to the embodiment of the present invention as described above, since the coating member is coated with a plurality of coated members at a time using a fixing jig, productivity is improved. Is improved.

In addition, since the growth is made in a short time, it is economical because the loss of the coating material of the sliding member.

In addition, there is an effect of spraying the coating material several times to obtain a uniform coating layer, thereby improving the quality of the finished product by reducing the thermal deformation of the member to be coated.

Claims (6)

A coating material injector of the sliding member which is rotatably fixed to the ground and is provided with an injection gun in which the coating member of the sliding member is sprayed in a vertical direction; And The holding device is fixed to the ground and supported, a circular rotating plate rotatably installed on the holder, and the fixing jig for the coupling member is selectively coupled to the upper and lower surfaces on the circumference of the rotating plate; Included, The coating material injection system of the sliding member, characterized in that at least one rotary holding device is installed so that the circumferential surface of the rotating plate is in contact with the circumferential surface formed by the spray gun when the main body of the coating material injector of the sliding member rotates. The method of claim 1, The wet plate is characterized in that the fixing bolt is coupled to the fitting groove of the fixing jig, and the projection bolt is inserted into the fitting hole of the fixing jig so that the fixing jig detachably coupled to the circumference. Coating material injection system of eastern material. According to claim 1, wherein the coating material injector of the sliding member A fixed support fixed to the ground; A main body rotatably installed on the fixing base; A horizontal arm connected to the main body in a lateral direction; And The spray gun is connected to the end of the horizontal arm so as to be movable in the vertical direction, the coating material is coupled to be sprayed in the vertical direction; coating material injection system of the sliding member characterized in that it is provided. The method according to any one of claims 1 to 3, The spray gun is a coating material spray system of the sliding member, characterized in that the spray gun is installed so as to face in the up, down direction so that the coating material is sprayed simultaneously in the up, down direction. An installation step of fixing at least one fixing jig for mounting a member to be coated on a circumferential surface of the rotating plate of the at least one rotary holding device; Adjusting the spray gun of the coating material injector of the sliding member in accordance with the position of the member to be coated installed in the fixing jig; A spraying step of growing a coating layer on the member to be coated by spraying the coating material with the coating material injector of the sliding member while rotating the rotary holding device; And And a collecting step of separating the fixing jig from the rotatable holding device after cooling the finished member to be finished growth. The method of claim 5, After the spraying step, the coating layer injection method of the sliding member further comprises a moving step of rotating the coating material injector of the sliding member toward the adjacent rotary holding device when the growth of the coating layer.

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