KR20220049247A - Rivet removal apparatus and rivet removal method using the same - Google Patents

Abstract

The present invention relates to a rivet removal apparatus and a rivet removal method using the same, wherein the safety in rivet removal can be greatly improved by spraying a cooling fluid to a cutting point during removal of rivets by cutting so that the high heat generated during cutting and removal of the rivets is immediately cooled and the rivets used in a warhead and a propulsion engine equipped with high-risk explosive substances are safely removed, and a warhead and a propulsion engine of a guided missile equipped with high-risk explosive substances can be subjected to depot maintenance by safely and quickly removing rivets used in the warhead and the propulsion engine of the guided missile.

Description

Rivet removal device and rivet removal method using the same

The present invention relates to a rivet removal device and a rivet removal method using the same, and more particularly, to a rivet removal device capable of safely removing rivets used in a warhead and a propulsion engine equipped with a high-risk explosive material, and a rivet removal method using the same It is an invention about

In general, charged guided missiles are stored in a sealed state by being charged inside a launch tube having a specific shape (eg, hollow cylindrical or hollow hexahedral, etc.). In the case of long-term stored missiles for more than 10 years, they are unloaded from the launch tube and undergo maintenance during depot maintenance.

As a prior patent related to the present invention, Korean Utility Model Registration No. 0481884 "Rivet head removal device using a rotating member" has been proposed.

Korea Utility Model Registration No. 0481884 "Rivet head removal device using a rotating member" removes the rivet by rotating the rotating member, that is, the rotating member with the drill mountain formed thereon.

Korea Utility Model Registration No. 0481884 "Rivet head removal device using a rotating member" has a problem in that the cutting process is heated while the rivet is cut and removed by rotating the rotating member having a drill structure.

In other words, conventional rivet removal devices such as Korean Utility Model Registration No. 0481884 “Rivet head removal device using a rotating member” generate high heat in the process of cutting and removing rivets with a drill, so warheads containing high-risk explosive substances and If it is used to remove the rivets applied to the propulsion engine, there is a problem that it is practically impossible to use because there is a risk of explosion.

Therefore, in the case of the rivets applied to the warhead of the guided missile and the propulsion engine, it was impossible to remove it due to the explosive risk of the high-risk explosive material, that is, the high-explosive gunpowder located inside.

0001) Korean Utility Model Registration No. 0481884 "Rivet head removal device using rotating member" (Registered on November 16, 2016)

An object of the present invention is to immediately cool the high heat generated while cutting and removing rivets to safely remove rivets used in warheads and propulsion engines equipped with high-risk explosive substances, and a rivet removal method using the same is to provide

Another object of the present invention is to provide a rivet removal device that enables depot maintenance of the warhead and propulsion engine of the guided missile by safely and quickly removing the rivets used in the warhead and propulsion engine equipped with the high-risk explosive material of the guided missile is to do

Another object of the present invention is to provide a rivet removal device and a rivet removal method using the same, which removes the head of the rivet protruding from the surface with a milling part, and removes the rivet body through drilling to increase the efficiency during the rivet removal operation. .

Another object of the present invention is a rivet removal device and a rivet using the same, which improves the convenience during work by rotating the missile in a state in which a warhead and a propellant engine are assembled to accurately position the rivet to the working position of milling or drilling To provide a removal method.

In order to achieve the above object of the present invention, an embodiment of a rivet removal device according to the present invention is a work object holder on which a work object to which a rivet is fastened is placed, located on the work object mounted on the work object holder It is characterized in that it comprises a rivet removal unit for removing the rivet removed by cutting, and a rivet removal cooling unit for spraying a cooling fluid to the rivet to be removed by cutting the rivet with the rivet removal unit.

In the present invention, the rivet removal unit may include a milling unit for removing the head of the rivet by milling and a drilling unit for removing the body of the rivet from which the head is removed by drilling.

In the present invention, the cooling unit for removing the rivets includes: a first cooling unit for spraying a cooling fluid to a cutting point milled by a milling unit; And it may include a second cooling unit for spraying a cooling fluid to the cutting point drilled by the drilling unit.

In the present invention, the first cooling unit and the second cooling unit may each inject nitrogen gas.

An embodiment of the rivet removal device according to the present invention may further include a work object rotating unit for rotating the work object mounted on the work object holder.

In the present invention, the rotating part of the work object is inserted into the end side portion of the work object, a chuck part for fixing the work object to hold the inserted work object; And it may include a chuck rotation motor for rotating the chuck for fixing the work object.

In the present invention, the chuck unit for fixing the work object is provided to be spaced apart from the chuck body member provided with a circular work object fixing space in the center and the inner circumferential surface of the chuck body member, the center of the work object fixed space It may include a plurality of jaw members that move forward and backward at the same time to bite and fix the outer peripheral surface of the work object.

An embodiment of the rivet removal device according to the present invention may further include a chuck moving unit for moving the rotating unit to be worked forward and backward.

In the present invention, the work object holder includes a work object support portion on which the work object is seated, and the work object support portion is a pair of rotation guide roll members that are rotatable and spaced apart to support the work object so that the work object can be rotated in the axial direction. may include

In the present invention, the work object holder includes a work object support on which the work object is seated, the work object support portion is positioned in a plurality to be spaced apart, and the work object holder is positioned so that the plurality of work object support portions are moved forward and backward. It may further include a support moving part for moving at least one of the support support part and the plurality of work object support parts forward and backward.

In the present invention, the work target holder portion includes a support support on which the work target support portion is located; And it may further include a work object moving unit for moving the work object to a position where the rivet can be removed by the rivet removal unit by moving the support support unit forward and backward.

An embodiment of the rivet removal device according to the present invention may further include a rivet position detection unit for confirming the position of the rivet removed by the rivet removal unit.

In the present invention, the rivet removal unit includes a milling unit for removing the head of the rivet by milling and a drilling unit for removing the body of the rivet from which the head is removed by drilling, wherein the rivet position sensing unit is a rivet to be milled by the milling unit It may include a first rivet position detection unit to determine the position of the second rivet position detection unit to determine the position of the rivet to be drilled by the drilling processing unit.

One embodiment of the rivet removal device according to the present invention includes a cutting equipment holder in which the rivet removal unit, the cooling unit for removing the rivet and the rivet position sensing unit are mounted; And it may further include a cutting equipment moving unit for moving the cutting equipment holder forward and backward in the longitudinal direction of the work object.

An embodiment of the rivet removal device according to the present invention is a work object pressurizing fixing unit and the work object pressurizing fixing unit for fixing the position of the work object by pressing the upper portion of the work object seated on the work object support portion, It may further include an elevating unit for moving downward.

In the present invention, the work target pressing fixing unit is rotatably positioned on the first inclined surface and the second inclined surface of the V-groove and the pressing fixing block member having a V groove on the lower side to rotatably support the work object. It may include a support roll member.

An embodiment of the rivet removal device according to the present invention is removed by a work object rotating unit for rotating the work object mounted on the work object holder, a chuck moving unit for moving the work object rotating unit forward and backward, and the rivet removal unit A rivet position detection unit for confirming the position of the rivet being used, the rivet removal unit, the cooling unit for removing the rivet and the cutting equipment holder and the cutting equipment holder in which the rivet position detection unit is mounted before and after in the longitudinal direction of the work object It further comprises a cutting equipment moving unit for moving, wherein the work target holder is rotatable and includes a pair of rotation guide roller members positioned to be spaced apart from each other. It includes a support support on which an additional position is placed and a moving part for moving the object to a position where the rivet can be removed with a rivet removal unit by moving the support support forward and backward, wherein the rivet removal unit removes the head of the rivet by milling. and a drilling unit for removing the body of the rivet from which the head is removed by drilling, wherein the cooling unit for removing the rivet includes a first cooling unit for spraying a cooling fluid to a cutting point milled by the milling unit and the and a second cooling unit for spraying a cooling fluid to the cutting point drilled by the drilling unit, wherein the rivet position sensing unit is to be drilled into the first rivet position sensing unit and the drilling unit for confirming the position of the rivet to be milled by the milling unit It may include a second rivet position detection unit for checking the position of the rivet.

In order to achieve the above object of the present invention, an embodiment of a method for removing a rivet according to the present invention is a milling preparation step of positioning a rivet of a work object to a first position that can be cut by a milling unit, the milling processing A milling step of cutting and removing the head of the rivet with a negative milling cutter, a drilling machining preparation step of positioning the rivet from which the head has been removed in the milling step to a second position where it can be cut by the drilling machining section, the drilling of the drilling machining section and a drilling step of removing with a furnace, and in the milling step and the drilling step, a cooling fluid is sprayed to each cutting point to cool the heat generated during cutting.

In the present invention, the drilling preparation step may position the rivet from which the head is removed to the drilling processing unit located opposite the milling processing unit by rotating the work object in the axial direction.

In the present invention, the milling step and the drilling step may spray nitrogen gas to each cutting point.

The present invention can safely remove the rivet used in the warhead and propulsion engine equipped with a high-risk explosive material by directly cooling the high heat generated during the cutting and removal of the rivet, thereby greatly improving the safety when removing the rivet. .

The present invention has the effect of enabling the depot maintenance of the warhead and the propulsion engine of the missile by safely and quickly removing the rivets used in the warhead and propulsion engine equipped with the high-risk explosive material of the guided missile.

The present invention has the effect of removing the head of the rivet protruding from the surface by milling and removing the rivet body through drilling to efficiently remove the rivet during the rivet removal operation.

The present invention rotates the missile in a state in which the missile in which the warhead part and the propellant engine are assembled is mounted to precisely position the rivet to the working position of milling or drilling, thereby improving the convenience and shortening the operation time to greatly improve the operation efficiency. It works.

1 is a plan view showing an embodiment of a rivet removal device according to the present invention.
Figure 2 is a side view showing an embodiment of the rivet removal device according to the present invention.
Figure 3 is a front view showing an embodiment of the rivet removal unit in the rivet removal device according to the present invention.
Figure 4 is a front view showing an embodiment of the work target support in the rivet removal device according to the present invention.
Figure 5 is a front view illustrating a work target pressure fixing unit in another embodiment of the rivet removal device according to the present invention.
Figure 6 is a front view showing an embodiment of the work target rotating unit in the rivet removal device according to the present invention.
Figure 7 is a process diagram showing an embodiment of the rivet removal method according to the present invention.

The present invention will be described in more detail.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings as follows. Prior to the detailed description of the present invention, the terms or words used in the present specification and claims described below should not be construed as being limited to conventional or dictionary meanings. Therefore, the configuration shown in the embodiments and drawings described in the present specification is only the most preferred embodiment of the present invention and does not represent all of the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

1 is a plan view showing an embodiment of a rivet removal device according to the present invention, Figure 2 is a side view showing an embodiment of the rivet removal device according to the present invention, Figure 3 is a rivet removal device according to the present invention It is a front view showing an embodiment of the rivet removal unit 200 in.

An embodiment of the rivet removal device according to the present invention will be described in detail below with reference to FIGS. 1 to 3 .

An embodiment of the rivet removal apparatus according to the present invention is located on the work object holder 100 on which the work object 10 to which the rivets are fastened is placed, and the work object 10 mounted on the work object holder 100 . It includes a rivet removal unit 200 for removing the rivets made by cutting.

On one side of the rivet removal unit 200, a cooling unit 300 for removing the rivets for cooling the high heat generated during cutting when the rivet is removed by cutting with the rivet removal unit 200 is located.

In addition, the rivet removal unit 200 includes a milling unit 210 for removing the head of the rivet by milling, and a drilling unit 220 for removing the body of the rivet from which the head is removed by drilling.

In addition, the cooling unit 300 for removing the rivets is a first cooling unit 310 that sprays a cooling fluid to a cutting point milled by the milling unit 210, a first cooling unit that sprays a cooling fluid to a cutting point drilled by the drilling unit 210 2 includes a cooling unit 320 .

The first cooling unit 310 and the second cooling unit 320 may each spray nitrogen gas to effectively cool high heat generated during milling or drilling cutting.

Each of the first cooling unit 310 and the second cooling unit 320 includes a gas injection unit that injects the cooling fluid to the cutting point, and a cooling fluid supply unit that supplies the cooling fluid to the gas injection unit.

Although not shown, the cooling fluid supply unit is a storage tank for storing cooling fluid, a cooling fluid supply line unit connecting the storage tank and the gas injection unit, and a pump located in the cooling fluid supply line unit to supply the cooling fluid in the storage tank to the gas injection unit; It should be noted that various modifications can be made by using a known structure including a valve located in the cooling fluid supply line unit to open and close the flow path of the cooling fluid supply line unit.

The milling processing unit 210 is located on one side of the work object holder 100 on which the work object 10 is placed, and the drill processing unit 220 is located on the other side of the work object holder 100 .

The milling unit 210 and the drilling unit 220 are positioned to face each other and include a milling unit 211 for removing the work object 10 by milling the head of the rivet.

An embodiment of the rivet removal device according to the present invention further includes a work object rotating unit 400 for rotating the work object 10 mounted on the work object holder 100 .

The work object rotating unit 400 rotates the work object 10 mounted on the work object holder 100 in the axial direction to mill the rivets, which are the removal objects of the work object 10 , with the milling unit 210 and the drilling unit 220 . ) to a position corresponding to that, that is, positioned at a position that can be machined by the milling unit 210 and the drill processing unit 220 , respectively.

The work object rotating unit 400 rotates the work object 10 mounted on the work object holder 100 about the central axis in the longitudinal direction and places the rivets located on one side on the other side so that the rivets to be removed are milled after processing. allow for drilling.

In addition, the work object rotating unit 400 rotates the work object 10 mounted on the work object holder 100 about the central axis in the longitudinal direction to rotate the rivets to be removed to the milling unit 210 or the drilling unit. Positioned so that it can be cut by

The work target rotating unit 400 is a chuck rotation for rotating a part of the end side of the work object 10 is inserted, the chuck unit 410 for fixing the work object holding the inserted work object 10, the chuck unit for fixing the work object 410 It includes a motor unit 420 .

In addition, an embodiment of the rivet removal device according to the present invention may further include a chuck moving unit 420 for moving the work target rotating unit 400 forward and backward.

The chuck moving part 420 uses a known linear movement structure such as a rack and pinion structure that converts the rotational force of the pinion gear into a linear movement, including a ball screw type linear actuator, a rack gear and a pinion gear rotated by meshing with the rack gear. Or, a more detailed description of the bar that can be implemented using a hydraulic cylinder is omitted.

The chuck moving unit 420 advances the work rotating unit 400 toward the work object 10 to insert a portion of the end side of the work object 10 into the chuck unit 410 for fixing the work object, and the work rotating unit 400 ) can be retracted to separate the work object 10 and the chuck unit 410 for fixing the work object.

It should be noted that the work object 10 is a guided missile including a warhead and a propulsion engine as an example, and may include various well-known structures and devices having a fastening part using rivets in addition to them.

It turns out that the rivet removal device according to the present invention can be effectively used to safely remove rivets from weapons such as shells, such as guided bombs, etc. having high-risk explosive substances such as high-explosive gunpowder having an explosion risk therein.

The milling processing unit 210 and the drill processing unit 220 are positioned to face each other on both sides of the work object holder 100 , and are fastened to the work object 10 mounted on the work object holder 100 . The rivet can be milled and then drilled.

The milling processing unit 210 rotates the milling cutter to move the milling unit 211 capable of cutting the head of the rivet, and the milling unit 211 forward and backward in a straight line to bring the milling cutter into contact with the head of the rivet. It includes a linear moving part 212 for milling to cut the head.

The milling cutter is an example of a cobalt milling cutter for preventing sparks made of a cobalt material that prevents sparks during milling.

The milling processing unit 210 is a spark-preventing cobalt milling cutter that prevents sparks from being generated during milling, thereby preventing an accident in which a high-risk explosive material provided in a work object is detonated by a spark generated during milling.

The milling linear moving unit 212 advances the milling unit 211 toward the work object 10 so that the milling cutter cuts the head of the rivet positioned to protrude from the outer surface of the work object 10, and the rivet After the head is cut, the milling unit 211 is retracted to be separated from the work object 10 .

In addition, the drilling processing unit rotates the drill to cut the body of the rivet by rotating the drill part 221, and linearly moving the drill part 221 forward and backward to cut the body of the rivet with a drilling linear moving part ( 222).

As an example, the drill is a spark-proof cobalt drill made of a cobalt material that prevents spark generation during drilling.

The drilling processing unit is a spark-preventing drill that prevents sparks from being generated during drilling, thereby preventing an accident in which a high-risk explosive material provided in a work object is detonated by a spark generated during milling.

The drilling linear moving part 222 advances the drilling part 221 toward the work object 10 and removes it by cutting the body of the rivet positioned in the inserted form from the outer surface of the work object 10 with a drill. After the body of the rivet is dug out and removed, the drill part 221 is retreated to separate it from the work object 10 .

The work object holder 100 includes a work object support unit 110 on which the work object 10 is seated, and a plurality of work object support units 110 may be spaced apart from each other.

The work target support 110 includes a pair of rotation guide roll members 111 rotatably positioned to support the work target 10, that is, a cylindrical body such as a guided missile to be rotated in the axial direction.

The work object 10 is seated on the pair of rotation guide roll members 111 and can be smoothly rotated in the axial direction by the work object rotating unit 400 .

In addition, the work object holder 100 is a plurality of work object support portion 110, at least any one of the support support 120, the plurality of work object support 110, which are positioned so as to move before and after, before and after. It further includes a support moving part 130 for moving.

The work target support unit 110 is provided in plurality and is movable by the support moving unit 130 , so that the distance can be adjusted according to the length and shape of the work target object 10 .

The bearing moving part uses a known linear movement structure such as a ball screw type linear actuator, a rack and pinion structure that converts the rotational force of a pinion gear into a linear movement, including a rack gear and a pinion gear that rotates in engagement with the rack gear, or a hydraulic cylinder. It should be noted that a more detailed description will be omitted since it can be implemented using

In addition, the work object holder 100 moves the support support 120 forward and backward to move the work object 10 to a position where the rivet can be removed with the rivet removal unit 200 . ) may be further included.

The work target moving unit 140 includes a hydraulic cylinder and a ball screw type linear actuator, a rack gear and a pinion gear rotated by meshing with the rack gear, and a known straight line such as a rack and pinion structure that converts the rotational force of the pinion gear into linear movement. It should be noted that a more detailed description will be omitted since it can be implemented with various modifications using the moving structure.

The work object moving unit 140 adjusts the position of the work object 10 by moving the support support unit 120 on which the work object support unit 110 is mounted forward and backward, and is applied to the work object 10 to be removed. The rivet is moved to a position where it can be removed by the rivet removal unit 200 .

That is, the work object moving unit 140 moves the work object 10 in a straight line in the longitudinal direction of the work object 10 to protrude from the outer surface of the work object 10 to be removed by the rivet removal unit 200 . The rivet is positioned to correspond to the rivet removal unit 200 .

In addition, an embodiment of the rivet removal device according to the present invention further includes a rivet position detection unit 600 for confirming the position of the rivet removed by the rivet removal unit (200).

The rivet position detecting unit 600 detects the position of the head of the rivet positioned to protrude from the outer surface of the work object 10 .

As an example, the rivet position detection unit 600 is a distance measurement detection unit using a laser.

The rivet position detection unit 600 detects the position of the head positioned to protrude from the outer surface of the work object 10 through distance measurement using a laser or detects the position of the cutting surface after the head of the rivet is removed by milling can do.

The rivet position sensing unit 600 may check the position of the rivet through a camera in addition to the distance measuring sensor using a laser, and it is disclosed that various modifications may be made using known various position sensing structures.

The rivet position detection unit 600 includes a first rivet position detection unit 610 for confirming the position of the rivet to be milled by the milling unit 210 and a second rivet position detection unit for determining the position of the rivet to be drilled by the drilling unit 210 . (620).

The first rivet position detection unit 610 detects the position of the head positioned to protrude from the outer surface of the work object 10 through distance measurement using a laser, and precisely cuts the head of the rivet with the milling unit 210 . make it possible

The first rivet position detection unit 610 detects the position of the head positioned to protrude from the outer surface of the work object 10 through distance measurement using a laser, and detects the central position of the head to determine the position of the milling cutter. Make sure that it can be accurately positioned at the center position of the part.

In addition, the second rivet position detection unit 620 detects the position of the cutting surface from which the head of the rivet is removed through distance measurement using a laser, and the center of the cutting surface, that is, the center of the rivet body located at the center of the cutting surface. Make sure that the drill is correctly positioned on the

One embodiment of the rivet removal device according to the present invention is a rivet removal unit 200, a cutting equipment holder 700 in which the cooling unit 300 for rivet removal and the rivet position detection unit 600 are mounted, and a cutting equipment holder It may further include a cutting equipment moving unit 800 for moving the 700 forward and backward in the longitudinal direction of the work object 10 .

The cutting equipment moving unit 800 moves the cutting equipment holder 700 forward and backward to adjust the positions of the rivet removal unit 200, the rivet removal cooling unit 300, and the rivet position detection unit 600, thereby riveting the rivets. The removal unit 200 and the cooling unit 300 for removing the rivet can be accurately positioned at the removal operation position of the rivet.

In addition, an embodiment of the rivet removal device according to the present invention is not shown, but the work target rotating unit 400, the chuck moving unit 420, the cooling unit 300 for removing the rivets, the rivet removal unit 200, the support moving unit , is electrically connected to the work target moving unit 140, the rivet position sensing unit 600, the work target rotating unit 400, the chuck moving unit 420, the cooling unit for removing the rivets 300, the rivet removal unit 200 ), the support moving unit, the work target moving unit 140, further includes a rivet removal operation control unit for controlling the operation of the cutting equipment moving unit 800.

The rivet removal operation control unit is connected to the terminal from the outside through wired or wireless communication, and by operation through the terminal, the operation target rotating unit 400, the chuck moving unit 420, the rivet removal cooling unit 300, the rivet removal unit 200 ), the support moving unit, and the operation target moving unit 140 can be controlled.

The rivet removal operation control unit may operate the support moving unit to adjust the spacing of the work object support unit 110 according to the length or shape of the work object 10 .

In addition, the rivet removal operation control unit moves the work object rotating unit 400 forward and backward through the chuck moving unit 420 to move the work object 10 mounted on the work object holder 100 to the work object rotating unit 400 . You can set the working position of the rivet precisely while holding it and rotating it.

In addition, the rivet removal operation control unit is the work object 10 or the cutting equipment, that is, the rivet removal unit 200, the cooling unit 300 for removing the rivets through the work object moving unit 140 and the cutting equipment moving unit 800 and Cutting equipment including the rivet position detection unit 600 may be moved.

That is, the rivet removal operation control unit moves the work object 10 or the cutting equipment through the work object moving unit 140 and the cutting equipment moving unit 800 , and the work object holder 100 with the work object rotating unit 400 . The position of the rivet to be removed is sensed with the rivet position detection unit 600 while holding the work object 10 placed on the upper surface and rotating in the axial direction, and through this, the work object moving unit 140, the cutting equipment moving unit 800, the work The position of the rivet is adjusted so that the rivet to be removed can be precisely processed by the milling unit 210 while selectively controlling the operation of the target rotating unit 400 .

And the rivet removal operation control unit rotates the work object 10 by 180 degrees with the work object rotating unit 400 after the head of the rivet is removed by the milling unit 210 so that the rivet is removed by the drilling unit located on the opposite side. to be processed accurately.

The rivet removal operation control unit finally confirms the position of the rivet through the second rivet position detection unit 620 when the rivet is processed by the drilling unit so that the rivet can be accurately cut and removed through drilling.

On the other hand, Figure 4 is a front view showing an embodiment of the work object support 110 in the rivet removal device according to the present invention, referring to Figure 4, the work object support 110 is a V-groove is located in the center, As an example, the rotation guide roll member 111 for rotatably supporting the work object 10 is respectively positioned on the first inclined surface and the second inclined surface of the V groove.

The work object 10 is seated on the upper portion of the rotation guide roll member 111 and can be smoothly rotated in the axial direction by the work object rotating unit 400, and the work object 10 having various diameters through the V-groove portion. You can set it up and work.

5 is a front view illustrating the work target pressing fixing unit 900 in another embodiment of the rivet removal device according to the present invention, and another embodiment of the rivet removal device according to the present invention is on the work target support unit 110 . A work object pressurization fixing unit 900 for fixing the position of the work object 10 by pressing the upper portion of the seated work object 10, and a lifting and lowering unit 1000 for moving the work object pressurization fixing unit 900 up and down may further include.

The elevating unit 1000 is a hydraulic cylinder as an example, and in addition to a ball screw type linear actuator, a rack gear and a rack gear and a pinion gear that is rotated by the motor in engagement with the rack gear, a rack that converts the rotational force of the motor into linear movement; It should be noted that a more detailed description of the bar can be implemented with various modifications using a known elevating device such as a pinion structure and the like will be omitted.

The work target pressing fixing unit 900 is rotatably positioned on the first and second inclined surfaces of the pressing fixing block member 910 having the V groove to the lower side, and the V groove, respectively, so as to rotate the work object 10 . It includes a work target support roll member 920 to support it.

The work target press fixing unit 900 is the work target support roll member 920 is in contact with the outer surface of the work object 10 to fix the position of the work object 10, the work target rotating unit 400 in a pressurized state so that the work object 10 can be rotated by

6 is a front view showing an embodiment of the work target rotating unit 400 in the rivet removal device according to the present invention, referring to FIG. The chuck body member 411 provided with a circular work target fixing space 411a is spaced apart from the inner circumferential surface of the chuck body member 411, and simultaneously moves forward and backward toward the center of the work target fixing space 411a. It may include a plurality of jaw members 412 to bite the outer peripheral surface of the work object 10 to fix.

The combustion tube fixing space is an open space with at least a front or rear surface, and a portion of the end side of the work object 10 is inserted into the open front or rear surface to be positioned therein.

The chuck part 410 for fixing the work object is to include a circular chuck body member 411 and a plurality of jaw members 412 provided on the inner circumferential surface of the chuck body member 411, and although not shown, on the piston rod of the hydraulic cylinder. It consists of a wedge plunger connected and operated, and when the wedge plunger moves forward and backward by the operation of the hydraulic cylinder, the jaw member 412 coupled to the wedge plunger moves the workpiece due to the moving inclined protrusion that is pushed along the guide surface. It will be tightened in the clamping direction, or open in the opposite direction in the loosening direction.

The structure for moving the plurality of jaw members 412 forward and backward at the same time can be variously modified and implemented in a known tubular fixing chuck for fixing the tubular body, and thus a more detailed description will be omitted.

7 is a process diagram illustrating an embodiment of a rivet removal method according to the present invention, and with reference to FIG. 7 , an embodiment of the rivet removal method according to the present invention is a rivet of a work object by the milling processing unit 210 A milling preparation step (S100) of positioning it to a first position that can be cut, a milling step (S200) of cutting and removing the head of the rivet with a milling cutter of the milling processing unit 210, a head in the milling step (S200) It includes a drilling process preparation step (S300) of positioning the removed rivet to a second position that can be cut by the drilling part, and a drilling step (S400) of removing the removed rivet with a drill of the drilling part, a milling step (S200) and drilling In step S400, the cooling fluid is sprayed to each cutting point to cool the heat generated during cutting.

In the drilling processing preparation step (S300), the rivet from which the head has been removed is positioned in the drilling processing unit located opposite the milling processing unit 210 by rotating the work object 10 in the axial direction.

In the milling step (S200) and the drilling step (S400), as an example, nitrogen gas is sprayed to each cutting point to efficiently and quickly cool the heat generated during cutting.

That is, the present invention can safely remove the rivet used in the warhead and propulsion engine equipped with a high-risk explosive material by directly cooling the high heat generated during the cutting and removal of the rivet, greatly improving the safety at the time of removing the rivet.

The present invention enables the depot maintenance of the warhead and the propulsion engine of the guided missile by safely and quickly removing the rivets used in the warhead and propulsion engine equipped with the high-risk explosive material of the guided missile.

The present invention removes the head of the rivet protruding from the surface by milling, and removes the rivet body through drilling to efficiently remove the rivet during the rivet removal operation.

The present invention rotates the missile in a state in which the missile with the warhead and the propellant engine is mounted, and precisely positions the rivet to the working position of milling or drilling, thereby improving convenience and shortening the working time, thereby greatly improving the working efficiency. .

It should be noted that the present invention is not limited to the above-described embodiment, and can be implemented with various modifications without departing from the gist of the present invention, which is included in the configuration of the present invention.

10: work object
100: work object holder 110: work object support portion
111: rotation guide roll member 120: support support
130: support moving unit 140: work target moving unit
200: rivet removal unit 210: milling unit
211: milling part 212: linear moving part for milling
220: drill processing part 221: drill part
222: straight moving part for drilling 300: cooling part for removing rivets
310: first cooling unit 320: second cooling unit
400: work target rotating part 410: chuck part for work target fixing
411: chuck body member 411a: work target fixed space
412: jaw member 420: chuck rotation motor unit
500: chuck moving part 600: rivet position detection part
610: first rivet position detection unit 620: second rivet position detection unit
700: cutting equipment holding part 800: cutting equipment moving part
900: work target pressurized fixing unit 910: pressurized fixing block member
920: work target support roll member 1000: elevating part
S100: Milling preparation step S200: Milling step
S300: Drilling processing preparation stage S400: Drilling stage

Claims (20)

a work object holder on which the work object to which the rivets are fastened is placed;
a rivet removal unit for removing the rivets placed on the work object mounted on the work object holder by cutting; and
The rivet removal device, characterized in that it comprises a rivet removal cooling unit for spraying a cooling fluid to the rivet to be removed by cutting the rivet to the rivet removal unit.
The method according to claim 1,
The rivet removal unit,
Milling part for removing the head of the rivet by milling; and
The rivet removal device, characterized in that it comprises a drilling part for removing the body of the rivet from which the head has been removed by drilling.
3. The method according to claim 2,
The cooling unit for removing the rivets includes: a first cooling unit for spraying a cooling fluid to a cutting point milled by a milling unit; and
The rivet removal device, characterized in that it comprises a second cooling unit for spraying a cooling fluid to the cutting point drilled by the drilling unit.
4. The method according to claim 3,
The rivet removal device, characterized in that the first cooling unit and the second cooling unit each injects nitrogen gas.
The method according to claim 1,
Rivet removal device, characterized in that it further comprises a work target rotating unit for rotating the work object mounted on the work target holder.
6. The method of claim 5,
The work target rotating unit,
A chuck unit for fixing a work object into which a portion of the end side of the work object is inserted and holds the inserted work object; and
Rivet removal device comprising a chuck rotating motor for rotating the chuck for fixing the work object.
7. The method of claim 6,
The chuck unit for fixing the work target,
a chuck body member provided with a circular fixing space for the work object in which the work object is located in the center; and
A rivet removal device comprising a plurality of jaw members spaced apart from the inner circumferential surface of the chuck body member and moving forward and backward at the same time toward the center of the work target fixing space to bite and fix the outer circumferential surface of the work target.
6. The method of claim 5,
The rivet removal device, characterized in that it further comprises a chuck moving unit for moving the work target rotating unit forward and backward.
6. The method of claim 5,
The work target holder includes a work target support on which the work target is seated,
The rivet removal device, characterized in that the rivet removal device comprising a pair of rotation guide roll members rotatable and spaced apart to support the work target so as to support the work object to be rotated in the axial direction.
The method according to claim 1,
The work target holder includes a work target support on which the work target is seated,
The work target support portion is located in a plurality of spaced apart,
The work target holding unit,
a support support positioned so that a plurality of work object support portions are moved forward and backward; and
The rivet removal device further comprising a support moving part for moving at least one of the plurality of work target support parts forward and backward.
The method according to claim 1,
The work object holder portion is a support support portion on which the work object support portion is located; and
The rivet removal device further comprising a work object moving unit for moving the work object to a position where the rivet can be removed with the rivet removal unit by moving the support support unit forward and backward.
6. The method of claim 5,
The rivet removal device further comprising a rivet position detection unit for confirming the position of the rivet removed by the rivet removal unit.
13. The method of claim 12,
The rivet removal unit,
Milling part for removing the head of the rivet by milling; and
and a drill processing unit for removing the body of the rivet from which the head has been removed by drilling,
The rivet position detection unit,
a first rivet position detection unit for confirming a position of a rivet to be milled by the milling unit; and
A rivet removal device comprising a second rivet position detection unit for confirming the position of the rivet to be drilled by the drilling unit.
13. The method of claim 12,
The rivet removal unit, the cooling unit for removing the rivet, and a cutting equipment holder to which the rivet position detection unit is mounted; and
The rivet removal device further comprising a cutting equipment moving unit for moving the cutting equipment holder forward and backward in the longitudinal direction of the work object.
10. The method of claim 9,
a work object pressurizing fixing unit for fixing the position of the work object by pressing the upper portion of the work object seated on the work object support part; and
Rivet removal device, characterized in that it further comprises an elevating unit for moving the work target pressurizing fixing unit up and down.
16. The method of claim 15,
The work target pressing fixing part is a pressing fixing block member having a V-groove on the lower side; and
The rivet removal apparatus comprising a work target support roll member rotatably positioned on the first inclined surface and the second inclined surface of the V-groove, respectively, to rotatably support the work object.
The method according to claim 1,
a work target rotating unit for rotating the work object mounted on the work target holder;
a chuck moving unit for moving the work target rotating unit forward and backward;
a rivet position detection unit for confirming the position of the rivet removed by the rivet removal unit;
The rivet removal unit, the cooling unit for removing the rivet, and a cutting equipment holder to which the rivet position detection unit is mounted; and
Further comprising a cutting equipment moving unit for moving the cutting equipment holder forward and backward in the longitudinal direction of the work object,
The work target holding unit,
A work target support on which the work object is seated on the rotation guide roller member, including a pair of rotation guide roller members that are rotatable and spaced apart from each other;
a support support on which the support for the work is located; and
and a work object moving unit for moving the work object to a position where the rivet can be removed with a rivet removal unit by moving the support support unit forward and backward,
The rivet removal unit,
Milling part for removing the head of the rivet by milling; and
and a drill processing unit for removing the body of the rivet from which the head is removed by drilling,
The cooling unit for removing the rivets,
a first cooling unit for spraying a cooling fluid to a cutting point milled by the milling unit; and
and a second cooling unit for spraying a cooling fluid to the cutting point drilled by the drilling processing unit,
The rivet position detection unit,
a first rivet position detection unit for confirming a position of a rivet to be milled by the milling unit; and
Rivet removal device comprising a second rivet position detection unit for confirming the position of the rivet to be drilled by the drilling unit.
Milling preparation step of positioning the rivet of the work object to a first position that can be cut by the milling processing unit;
a milling step of cutting and removing the head of the rivet with a milling cutter of the milling part;
a drilling preparation step of positioning the rivet from which the head is removed in the milling step to a second position where it can be cut by the drilling processing unit; and
Including a drilling step of removing the drilling part with a drill,
A rivet removal method, characterized in that by spraying a cooling fluid at each cutting point in the milling step and the drilling step to cool the heat generated during cutting.
19. The method of claim 18,
The drilling preparation step is a rivet removal method, characterized in that by rotating the work object in the axial direction to position the rivet from the head part to the drilling part located opposite the milling part.
19. The method of claim 18,
The milling step and the drilling step are rivet removal method, characterized in that by spraying nitrogen gas to each cutting point.

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