JP2008238400A - Device and method for disassembling assembled component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To miniaturize a device, to reduce its weight and to improve work efficiency by unfastening an attaching bolt from an assembled member and releasing the assembled member without using another independent driving device in a device and a method for disassembling the assembled component. <P>SOLUTION: An eleveting table 58 is provided above a bearing cap 17 fixed to a cylinder block 12 by an attaching bolt B, nut runners 61, 62 are attached to the eleveting table 58, sockets 72, 83 having, in their tips, locking holes 72a, 83a to be locked in the head part of the attaching bolt B are connected to the lower ends of rotary shafts 71, 82, and holding claws 85, 86 freely engaged with disengaged from the bearing cap 17 are fixed to a vertical moving body 73 for rotatably supporting the sockets 72, 83. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a disassembly device for disassembling an assembly component that disassembles an assembly component fastened to a member to be assembled by a mounting bolt, and a disassembly method thereof, for example, a disassembly device that removes a bearing cap from a cylinder head of an engine and disassembles the disassembly device It can be applied to the dismantling method.

  FIG. 8 shows a schematic cross section of a general engine.

  As shown in FIG. 8, in the engine 11, a cylinder head 13 is fixed to an upper portion of a cylinder block 12, and a piston 15 is fitted in a cylinder 14 in the cylinder block 12 so as to be movable up and down. . A crankshaft 16 is rotatably supported by a bearing cap 17 at the bottom of the cylinder block 12, and a piston 15 is connected to the crankshaft 16 via a connecting rod 18 at a position eccentric from the center thereof. An oil pan 19 is fixed to the lower part of the cylinder block 12.

  A combustion chamber 20 is configured by the cylinder block 12, the cylinder head 13, and the piston 15, and an intake port 21 and an exhaust port 22 are connected to the combustion chamber 20. An intake valve 23 and an exhaust port 22 are connected to the intake port 21 and the exhaust port 22. The front end portion of the valve 24 faces, so that the combustion chamber 20 and the ports 21 and 22 can be opened and closed. In addition, an intake camshaft 25 and an exhaust camshaft 26 are rotatably supported on the cylinder head 13 by a plurality of cam caps 27 and 28, and an intake cam 29 and an exhaust cam 30 are integrally formed. The intake cam 29 and the exhaust cam 30 can actuate the intake valve 23 and the exhaust valve 24 via the rocker arms 31 and 32.

  Further, the cylinder head 13 is provided with a fuel injection valve 33 for injecting fuel into the intake port 21, and a tip portion faces the combustion chamber 20, and the fuel and air introduced into the combustion chamber 20 A spark plug 34 for igniting the air-fuel mixture is attached.

  Therefore, when the crankshaft 16 is driven to rotate, the piston 15 reciprocates via the connecting rod 18. On the other hand, the cams 29 and 30 open and close the intake valve 23 and the exhaust valve 24 via the rocker arms 31 and 32 by the rotational driving of the camshafts 25 and 26 in synchronization with this, and at the same time, the fuel injection valve 33 supplies the fuel to the intake port 21. At this time, the steps of intake, compression, explosion, and exhaust are repeated in the combustion chamber 20, and exhaust gas is exhausted from the exhaust port 22 to the outside.

  In such an engine 11, in the assembly process of the crankshaft 16, after the shaft holes are formed by fastening the plurality of bearing caps 17 to the cylinder block 12 with the mounting bolts B, the mounting bolts B are loosened. After disassembling the bearing cap 17 and incorporating the crankshaft 16 into the shaft hole, the plurality of bearing caps 17 are fastened to the cylinder block 12 again with the mounting bolts B so that the crankshaft 16 is assembled. Yes.

  As a dismantling apparatus and disassembling method for disassembling the bearing cap 17 once fastened to the cylinder block 12 with the mounting bolt B, conventionally, an apparatus for loosening the mounting bolt B and removing the mounting bolt B from the bearing cap 17; In general, a device for removing the bearing cap 17 from which the mounting bolt B is removed from the cylinder block 12 is provided separately. For example, as disclosed in JP-A-7-314263, the mounting bolt B There is one that performs the operation of removing the bearing cap and the operation of removing the bearing cap 17 with one device.

  That is, in the “disassembly method of assembly parts and disassembly apparatus” disclosed in this publication, five bearing caps are positioned on the cylinder block with tubular pins and fastened with bolts. While lowering the plate and holding the bearing cap, the socket of the nut runner is engaged with the head of the bolt, and in this state, the bolt is loosened and rotated by a loose drive of the nut runner, and the engagement member is raised. Then, the bearing cap is lifted by a predetermined amount similar to the bolt, so that the bearing cap is detached from the cylinder block and disassembled. Therefore, according to the “disassembly method of assembly parts and its disassembly device”, the operation of removing the bolts and the operation of removing the bearing cap are performed by one device, which contributes to the cost reduction of the device and the shortening of the work time. can do.

Japanese Unexamined Patent Publication No. 7-314263

  However, in the above-described conventional “disassembly method of assembly parts and disassembly apparatus thereof”, the bearing cap is positioned and press-fitted into the cylinder block via the tubular pin and fastened by a bolt. Therefore, when the bolt is loosened and rotated by the nutrunner's loose driving, the engagement member is lifted together with the substrate by the hydraulic cylinder and lifted so as to pull out the bearing cap from the tubular pin and separated from the cylinder block. . In other words, as the bolt is lifted while being loosened and rotated, a separate independent drive device for raising the engagement member and raising the bearing cap, that is, a hydraulic cylinder is required. In this case, the hydraulic cylinder requires a driving force for pulling out the bearing cap against the pressure input of the bearing cap to the tubular pin, and there is a problem that the apparatus becomes large.

  Also, since the bearing cap is pulled out from the tubular pin of the cylinder block with a large force, a device for firmly pressing the cylinder block is required, which not only increases the size of the device but also exerts an extra force on the cylinder block. There are problems such as. Further, the operation of loosening the bolt and the operation of pulling out the bearing cap are performed alternately in two stages, which causes a problem that it takes a long working time.

  The present invention solves such a problem, and allows the mounting bolt to be loosened from the member to be assembled and the assembled part to be detached without using a separate independent driving device, thereby reducing the size and weight of the device. An object of the present invention is to provide an assembly part disassembling apparatus and a disassembling method thereof that aim to improve workability.

In order to achieve the above object, an assembly part disassembling apparatus according to the present invention comprises:
In an assembly part disassembly device for disassembling an assembly part fastened to a member to be assembled by a mounting bolt,
An apparatus main body which is supported so as to be able to approach and separate from the assembly part;
A rotating shaft that is rotatably supported by the apparatus body;
A socket connected to the tip of the rotating shaft so as to be integrally rotatable and having a locking portion that can be locked to the head of the mounting bolt at the tip;
A movable body that rotatably supports the socket and is movable together with the socket with respect to the apparatus main body along the axial direction of the socket;
A holding claw that is rotatably supported by the movable body and is detachable from the assembly part;
An opening / closing arm that is attached to the apparatus main body and is located above the holding claw and opens and closes the holding claw;
The socket is detachably attached to the rotating shaft,
The holding claw is detachably attached to the opening / closing arm,
The socket, the moving body and the holding claw constitute a disassembly head,
The disassembly head is detachable from the rotary shaft and the opening / closing arm.

Further, the assembly part disassembling apparatus according to the present invention comprises:
The socket is movable upward with respect to the apparatus main body and is biased and supported by a spring in a direction in which the locking portion is locked to the head of the mounting bolt,
The holding claw can be engaged with the assembly part from below.

Further, the assembly part disassembling apparatus according to the present invention comprises:
The holding claws are rotatably supported by the moving body, and have a pair of claw parts that can be engaged and disengaged with the assembly part, and an operation part that operates opening and closing of the pair of claw parts,
The open / close arm has an engagement portion that engages with the operation portion.

Further, the assembly part disassembling apparatus according to the present invention comprises:
A plurality of types of disassembly heads including the socket, the moving body, and the holding claws are provided so as to correspond to the types of the assembly parts,
When the assembly parts are different, the disassembly head is detached from the rotating shaft and the opening / closing arm, and a disassembly head corresponding to the type of the assembly part is selected and mounted.

Further, the assembly part disassembling apparatus according to the present invention comprises:
Two of the rotating shafts are supported on the apparatus body at a predetermined interval, while the two sockets are supported on the movable body, and the sockets are connected to the distal ends of the rotating shafts.
The holding claw is mounted between the two sockets supported by the movable body.

Further, the assembly part disassembling apparatus according to the present invention comprises:
The apparatus main body is provided with an adjusting mechanism capable of adjusting an interval between the two rotating shafts.

Furthermore, the method of disassembling the assembly part according to the present invention includes:
In a disassembly method of an assembly part for disassembling an assembly part fastened to a member to be assembled by a mounting bolt,
A locking portion of a socket that is rotatably supported by a moving body is locked to the head of the mounting bolt, and a holding claw that is rotatably supported by the moving body is operated by operating an opening / closing arm. In a state where the socket is engaged, the socket is rotationally driven,
Rotating the mounting bolt in the loosening direction, moving only the moving body together with the socket in the axial direction, and moving the assembly part via the holding claw as the mounting bolt moves in the axial direction,
The assembled part is disassembled while being separated from the member to be assembled.

  As described above in detail in the embodiment, according to the disassembly apparatus for an assembly component according to the present invention, the rotation shaft that can be driven and rotated is supported on the apparatus body that is close to and away from the assembly component. A socket having a locking portion that can be locked to the head of the mounting bolt at the tip of the rotating shaft is connected to the tip of the rotating shaft so as to be integrally rotatable, and the socket can be moved integrally along the axial direction of the socket. Since the holding claw that can be freely rotated and attached to and detached from the assembly part is attached to this moving body, the locking part of the socket is engaged with the head of the mounting bolt and the holding claw is engaged with the assembly part. When the rotating shaft is driven and rotated in the loosening direction of the mounting bolt in the combined state, the mounting bolt moves in the detaching direction while rotating with respect to the assembled member, and this moving force causes the moving body to loosen the mounting bolt. Move in the same direction in parallel with the movement As a result, the holding claw disengages the assembled part from the assembled member and disassembles it, so that the mounting bolt can be loosened from the assembled member and the assembled part can be detached without using a separate drive unit. As a result, the apparatus can be reduced in size and weight, and the working time can be shortened.

  Further, according to the assembly part disassembling apparatus according to the present invention, the socket is movable upward with respect to the apparatus main body, and is biased and supported in the direction in which the locking part is locked to the head of the mounting bolt by the spring. Since the holding claw can be engaged with the assembly part from below, the socket locking portion is locked to the head of the mounting bolt by the spring. When the socket is rotated in the loosening direction of the mounting bolt, the mounting bolt moves upward with respect to the device main body while maintaining the locked state with the locking portion. At this time, the holding claw is moved from the lower side of the assembly part. When the socket and the moving body are lifted together with the mounting bolt because of the engagement, the holding claw can be easily detached from the assembled member while holding the assembled component.

  Further, according to the assembly part disassembling apparatus according to the present invention, the socket is made detachable from the rotating shaft, and includes a plurality of sockets, moving bodies, and holding claws provided corresponding to the types of the assembly parts. Since the disassembly head can be selected and mounted, the assembled member with the assembly parts fastened along the transport line is transported. If the type of the assembly parts is different, the socket is removed from the rotating shaft. By selecting and mounting the disassembly head corresponding to the type of assembly part, it is possible to continuously process various types of assembly parts on the same line.

  Moreover, according to the assembly part disassembling apparatus according to the present invention, two rotating shafts are supported on the apparatus main body at a predetermined interval, while two sockets are supported on the moving body, and the tip of each rotating shaft is supported. Since each socket is connected and a holding claw is mounted between two sockets supported by the moving body, the socket is locked to the mounting bolts on both sides of the assembly part, and the holding claw is engaged at the center. By combining, the assembled component can be detached from the assembled member with a good balance.

  Further, according to the assembly part disassembling apparatus according to the present invention, since the apparatus main body is provided with the adjusting mechanism capable of adjusting the interval between the two rotating shafts, the assembly part is fastened along the transport line. When the assembly member is transported and the positions of the two mounting bolts of this assembly component are different, the adjustment mechanism adjusts the interval between the rotating shafts so that many types of assembly components can be placed on the same line. Can be processed continuously.

  Further, according to the disassembly method of the assembly component according to the present invention, the retaining portion of the socket that is rotatably supported by the moving body is locked to the head of the mounting bolt, and the holding claw supported by the moving body , The socket is rotated, the mounting bolt is rotated in the loosening direction and moved in the axial direction, and the mounting bolt is moved through the holding claw as the mounting bolt moves in the axial direction. Since the assembly parts are disassembled while being separated from the assembled member, the mounting bolts can be loosened and detached from the assembled member without using a separate drive device. Workability can be improved as possible.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a partially cutaway front view of an assembly part disassembling apparatus according to an embodiment of the present invention, FIG. 2 is a front view showing a drive unit of the assembly part disassembling apparatus, and FIG. 3 is III-III in FIG. 4 is a cross-sectional view, FIG. 4 is a schematic view showing a method for replacing the disassembly head, FIGS. 5 and 6 are flowcharts showing work procedures of the assembly part disassembly method of this embodiment, and FIG. 7 is an assembly part disassembly apparatus of this embodiment. The schematic perspective view of is shown.

  In the present embodiment, the assembly part disassembling apparatus and the disassembling method thereof according to the present invention are disassembled in a vehicle engine as a mounting cap fastened by a mounting bolt to a cylinder block as a member to be assembled. This will be described by applying to the apparatus.

  As shown in FIG. 7, the transport pallet 41 can be transported on the transport line by the transport conveyor 42, and the four bearing caps 17 are fixed on the transport pallet 41 by mounting bolts B upside down. The cylinder block 12 is mounted, and a sub-pallet 43 for temporarily placing the disassembled bearing cap 17 is mounted. An assembly part disassembly device 50 according to this embodiment is disposed on the side of the conveyor 42. In the assembly part disassembling apparatus 50, a base 51 is installed on the side of the transfer conveyor 42, and a pair of left and right cross beams 53 are fixed on the base 51 by a plurality of support columns 52. The rail 54 is fixed. A pedestal 55 is installed on the pair of horizontal beams 53 and supported so as to be movable along the X-axis rail 54. A Y-axis rail 56 is fixed to the pedestal 55. A moving table 57 is movably supported on the Y-axis rail 56 of the gantry 55, and an elevating table 58 as an apparatus main body is supported on the moving table 57 so as to move up and down. The pedestal 55, the moving table 57, and the lifting table 58 can be moved by a driving device (not shown).

  A pair of left and right support plates 59, 60 are mounted on the lift 58, and nut runners 61, 62 are attached to the support plates 59, 60, and the disassembly head 63 is detachably attached to the nut runners 61, 62. It is attached to. Hereinafter, the nut runners 61 and 62 and the disassembly head 63 will be described in detail.

  As shown in FIGS. 1 to 3, the nut runner 61 has a drive motor 65 fixed to an upper portion of a fixed cylinder 64 fixed to a support plate 59, and an upper end portion of a square rotary shaft 67 is connected to a drive shaft 66 of the drive motor 65. A compression spring 69 is interposed between the drive shaft 66 of the drive motor 65 and the flange portion 68 of the rotation shaft 71 so as to be positioned around the square rotation shaft 67. On the other hand, a rotating shaft 71 rotatably supported by a fixed cylinder 64 via a bearing 70 is engaged with a lower portion of the rectangular rotating shaft 67 so as to be slidable in the vertical direction. Therefore, when the drive motor 65 is driven, the rotational force of the drive shaft 66 is transmitted to the rotary shaft 71 via the square rotary shaft 67, and the rotary shaft 71 can be rotated in the forward direction or the reverse direction.

  The socket 72 is rotatably supported by a side portion of an elevating body 73 as a moving body via a bush 74, and a locking hole 72a for locking to the head of the bolt B is formed at a lower end portion, while an upper portion is formed. Is inserted into the connecting cylinder 75 and fixed by the O-ring 101 and the pin 100. The connecting cylinder 75 has a lower end outer peripheral portion of the rotating shaft 71 that can be freely fitted and detached, and a plurality of balls 77 that are formed on the lower end outer peripheral portion of the rotating shaft 71 and are engaged with the outer peripheral groove 71a are mounted. A guide cylinder 78 that regulates the position of the ball 77 is fitted to the outer peripheral part so as to be movable up and down, is urged upward by a spring 79, and the inner peripheral projection 78 a is in contact with the stopper ring 80 of the connecting cylinder 75. Is held in.

  Therefore, as shown in FIG. 4A, when the guide cylinder 78 is in the upper position with the lower end portion of the rotating shaft 71 fitted into the connecting cylinder 75 and the ball 77 is engaged with the outer circumferential groove 71a, The movement of the ball 77 is restricted by the inner peripheral surface of the cylinder 78, and the connecting cylinder 75 and the socket 72 are not dropped from the rotating shaft 71. When the guide cylinder 78 is pushed down against the urging force of the spring 79 by the push lever L of the tool changer from this state, the ball 77 can move into the inner peripheral groove 78b of the guide cylinder 78 as shown in FIG. Thus, when the ball 77 comes out of the outer peripheral groove 71a of the rotating shaft 71, the socket 72 can be removed from the rotating shaft 71 via the connecting cylinder 75 as shown in FIG. In this case, a square hole 71b with which the square side 72b engages is formed at the lower end of the rotary shaft 71, and the square side 72b is urged upward by the spring 102. It assists that the hole 71b matches the square side 72b.

  In addition, the square side 72 b is fitted into the square hole 71 b formed in the lower end portion of the rotating shaft 71, and the tip square portion 72 c of the socket 72 is fitted into the connecting cylinder 75, so that the pin 100 and the O-ring 101 By fixing, the socket 72 can be rotated integrally with the rotating shaft 71. The socket 72 is movable upward with respect to the nut runner 61 together with the elevating body 73 and is biased and supported by the compression spring 69 in a direction in which the locking hole 72a is locked to the head of the mounting bolt B.

  Further, the nut runner 62 has the same configuration as the nut runner 61, and can rotate the rotating shaft 82 in the forward direction or the reverse direction by the drive motor 81. An upper portion of a socket 83 that is rotatably supported by this portion is detachably mounted. A locking hole 83 a that locks the head of the bolt B is formed at the lower end of the socket. In addition, since these structures are the same as that of the nut runner 61 and the socket 72 which were mentioned above, description is abbreviate | omitted.

  As shown in FIGS. 1 and 3, the elevating body 73 is positioned between the sockets 72 and 83, and the upper ends of the pair of front and rear holding claws 85 and 86 are rotatably supported by the support shaft 84. Yes. The holding claws 85, 86 are integrally formed at the lower end with opposing claws 85a, 86a that are detachably engageable with the bearing portion 17a of the bearing cap 17, and the operation parts 85b, 86b are formed at the upper end. Yes. In addition, above the holding claws 85 and 86 attached to the lifting body 73 and between the sockets 72 and 83, opening and closing arms 87 and 88 for opening and closing the holding claws 85 and 86 are located. Yes. The open / close arms 87 and 88 are movably supported by a mounting base 89 fixed to a bracket (not shown) suspended from the lifting / lowering base 58, and engaging portions 87a and 88a that engage with the operation portions 85b and 86b are integrally formed. Has been. Accordingly, when the open / close arms 87, 88 are moved by the open / close cylinder 90, the engaging portions 87a, 88a are engaged with the operation portions 85b, 86b to rotate the holding claws 85, 86, whereby the holding claws 85, 86 are engaged. 3 can be moved to a holding position where the claw portions 85a and 86a shown by solid lines in FIG. 3 hold the bearing cap 17 from the lower side and a release position shown by a two-dot chain line in FIG.

  When the rotating shafts 71 and 82 of the nut runners 61 and 62 rotate to perform the dismantling operation, the bolts B are loosened by the rotation of the sockets 72 and 83, and the rotations of the bolts B engaged with the sockets 72 and 83 are rotated. The same amount of lift caused by the same amount causes the sockets 72 and 83 to be lifted by the same amount. At this time, since the upper end portions of the holding claws 85 and 86 are supported by the elevating body 73 by the support shaft 84, the elevating body 73 is in a state where the lower end portions of the both holding claws 85 and 86 are engaged with the bearing cap 17. The bearing cap 17 is automatically lifted by the same amount in parallel with the loosening operation of the bolt B.

  In the assembly part disassembling apparatus of this embodiment, as described above, the disassembly head 63 (sockets 72 and 83) is detachable from the rotation shafts 71 and 82 of the nut runners 61 and 62, and the bearing cap 17 A plurality of disassembly heads 63 are provided corresponding to the type (for example, the size of the bearing portion 17a, the size of the mounting bolt B, the interval between the left and right mounting bolts B, etc.). That is, as shown in FIG. 7, a mounting table 91 is installed at a predetermined position of the base 51. A plurality of replaceable disassembly heads 63a and 63b are mounted on the mounting table 91. It can be replaced by the changer unit T.

  Furthermore, when the distance between the left and right mounting bolts B of the bearing cap 17 is different, the distance between the nut runners 61 and 62 (rotating shafts 71 and 82) can be adjusted. That is, as shown in FIG. 2, one nut runner 61 is attached to the support plate 59, and this support plate 59 is fixed to the lifting platform 58. The other nut runner 62 is mounted on a support plate 60, and this support plate 60 is supported on a lifting platform 58 so as to be movable in a direction approaching and separating from the nut runner 61. A screw cylinder 93 is fixed to the support plate 60 via a mounting bracket 92, and a screw shaft 95 that can be rotated by a drive motor 94 is attached to the lifting / lowering base 58. The screw shaft 95 is attached to the screw cylinder 93. Are screwed together. Therefore, when the drive motor 94 is driven and the screw shaft 95 is rotated, the nut runner 62 is moved through the screw cylinder 93, the mounting bracket 92, and the support plate 60, whereby the nut runners 61 and 62 (rotary shafts 71 and 82) are moved. The interval can be adjusted.

  Here, the disassembling work of the bearing cap by the disassembling apparatus for assembled parts of the present embodiment described above will be described based on the flowcharts of FIGS. 5 and 6.

  As shown in FIGS. 5 and 7, in step S1, the base 55, the moving base 57, and the lifting / lowering base 58 are moved in the X, Y, and Z directions, respectively, and the disassembly head 63 is waited at a standby position separated from the conveyance line. Let In step S2, the transport pallet 41 enters the work position by the transport conveyor 42. When the transport pallet 41 stops here, the model of the cylinder block 12 mounted on the transport conveyor 42 is read in step S3. In step S4, it is determined whether or not the model of the cylinder block 12 on the transport conveyor 42 matches the corresponding model of the currently installed disassembly head 63. If not, the process proceeds to step S5. The disassembly head 63 is replaced with a model corresponding to the cylinder block 12 on the transport conveyor 42. If the disassembly head 63 matches, the process proceeds to step S6 and the disassembly operation is started.

  That is, in step S7, the base 55 and the moving base 57 are moved in the X and Y directions, respectively, and the disassembly head 63 is moved directly above the cylinder block 12. In step S8, the open / close arms 87 and 88 are moved by the open / close cylinder 90 shown in FIG. 3, the holding claws 85 and 86 are moved to the release positions shown by the two-dot chain lines in FIG. Moves in the Z direction, that is, descends. In step S10, as shown in FIG. 1, when the locking holes 72a and 83a of the two sockets 72 and 83 are slightly rotated while pressing the heads of the mounting bolts B of the bearing cap 17, Match and become locked. In step S11, the open / close arms 87 and 88 are moved by the open / close cylinder 90, and the holding claws 85 and 86 are held at the bearing portions 17a of the bearing cap 17 from below by the claw portions 85a and 86a indicated by solid lines in FIG. Move to.

  In this state, when the drive motors 65 and 81 are driven in Step S12 and the rotating shafts 71 and 82 are rotated in the loosening direction of the mounting bolt B, in Step S13, the two mounting bolts B are rotated and relaxed. While rising. As the mounting bolt B is raised, the disassembly head 63 is raised in step S14, and the bearing cap 17 held by the holding claws 85, 86 is raised in step S15 to be detached from the cylinder block 12. In this case, the mounting bolt B rises with the loosening from the bearing cap 17, and the lifting force is transmitted to the disassembly head 63 to raise the bearing cap 17 held by the holding claws 85, 86 to be detached from the cylinder block 12. Therefore, a device for raising the bearing cap 17 is unnecessary, and a device for pressing the cylinder block 12 is also unnecessary. Further, the rising strokes of the sockets 72 and 83 (the disassembly head 63 and the rotary shafts 71 and 82) are absorbed in the nut runners 61 and 62.

  Thus, when the disassembly work of the bearing cap 17 from the cylinder block 12 is completed in step S16, the disassembly head 63 moves and the disassembled bearing cap 17 is temporarily placed on the subpallet 43 in step S17. Here, in step S18, it is determined whether all the bearing caps 17 have been disassembled from the cylinder block 12 on the transport pallet 41. If the bearing caps 17 remain in the cylinder block 12, the process proceeds to step S6. The operations in steps S6 to S17 are repeated. On the other hand, if all the bearing caps 17 have been disassembled from the cylinder block 12, the disassembly head 63 is moved to the standby position in step S19 to wait for the next transport pallet 41 to enter.

  In the above-described embodiment, the assembly part disassembling apparatus and the disassembling method according to the present invention have been described by applying to the dismantling operation of the bearing cap from the cylinder block in the vehicle engine. The present invention may be applied to the dismantling operation of the camshaft bearing cap, and may be applied not only to the vehicle engine but also to other machine parts.

It is a partial notch front view of the disassembly apparatus of the assembly components which concerns on one Embodiment of this invention. It is a front view showing the drive part of the disassembly apparatus of an assembly component. FIG. 3 is a sectional view taken along line III-III in FIG. 1. It is the schematic showing the replacement | exchange method of a decomposition | disassembly head. It is a flowchart showing the work procedure of the disassembly method of the assembly | attachment components of this embodiment. It is a flowchart showing the work procedure of the disassembly method of the assembly | attachment components of this embodiment. It is a schematic perspective view of the disassembly apparatus of the assembly component of this embodiment. It is a schematic sectional drawing of a common engine.

Explanation of symbols

12 Cylinder block (member to be assembled)
16 Crankshaft 17 Bearing cap (assembled parts)
B Mounting bolt 41 Conveying pallet 42 Conveying conveyor 50 Assembly parts dismantling device 58 Lifting platform (device main body)
59, 60 Support plate 61, 62 Nutrunner 63, 63a, 63b Disassembly head 69 Spring 71, 82 Rotating shaft 72, 83 Socket 72a, 83a Locking hole (locking part)
73 Lifting body (moving body)
75 Connecting cylinders 85, 86 Holding claws 87, 88 Opening / closing arm 93 Screw cylinder 94 Drive motor (adjustment mechanism)
95 Screw shaft

Claims (7)

In an assembly part disassembly device for disassembling an assembly part fastened to a member to be assembled by a mounting bolt,
An apparatus main body which is supported so as to be able to approach and separate from the assembly part;
A rotating shaft that is rotatably supported by the apparatus body;
A socket connected to the tip of the rotating shaft so as to be integrally rotatable and having a locking portion that can be locked to the head of the mounting bolt at the tip;
A movable body that rotatably supports the socket and is movable together with the socket with respect to the apparatus main body along the axial direction of the socket;
A holding claw that is rotatably supported by the movable body and is detachable from the assembly part;
An opening / closing arm that is attached to the apparatus main body and is located above the holding claw and opens and closes the holding claw;
The socket is detachably attached to the rotating shaft,
The holding claw is detachably attached to the opening / closing arm,
The socket, the moving body and the holding claw constitute a disassembly head,
The disassembling apparatus for assembled parts, wherein the disassembling head is detachable from the rotating shaft and the opening / closing arm. The assembly part disassembling apparatus according to claim 1,
The socket is movable upward with respect to the apparatus main body and is biased and supported by a spring in a direction in which the locking portion is locked to the head of the mounting bolt,
The assembly part disassembly apparatus, wherein the holding claw can be engaged with the assembly part from below. The assembly part disassembling apparatus according to claim 1,
The holding claw includes a pair of claw portions that are rotatably supported by the movable body and can be engaged with and disengaged from the assembly part, and an operation unit that operates opening and closing of the pair of claw portions,
The opening / closing arm has an engaging portion that engages with the operation portion. In the disassembly apparatus for assembly parts according to claim 3,
A plurality of types of disassembly heads including the socket, the moving body, and the holding claws are provided so as to correspond to the types of the assembly parts,
When the assembly parts are different, the disassembly head is removed from the rotating shaft and the opening / closing arm, and a disassembly head corresponding to the type of the assembly part is selected and mounted. Demolition device. The assembly part disassembling apparatus according to claim 1,
Two of the rotating shafts are supported on the apparatus body at a predetermined interval, while the two sockets are supported on the movable body, and the sockets are connected to the distal ends of the rotating shafts.
The disassembly apparatus for an assembly part, wherein the holding claw is mounted between the two sockets supported by the movable body. In the disassembling apparatus for assembly parts according to claim 5,
An assembly part disassembling apparatus, wherein the apparatus main body is provided with an adjusting mechanism capable of adjusting an interval between the two rotating shafts. In a disassembly method of an assembly part for disassembling an assembly part fastened to a member to be assembled by a mounting bolt,
A locking portion of a socket that is rotatably supported by a moving body is locked to the head of the mounting bolt, and a holding claw that is rotatably supported by the moving body is operated by operating an opening / closing arm. In a state where the socket is engaged, the socket is rotationally driven,
Rotating the mounting bolt in the loosening direction, moving only the moving body together with the socket in the axial direction, and moving the assembly part via the holding claw as the mounting bolt moves in the axial direction,
The disassembling method for an assembling part, wherein the assembling part is disassembled while being separated from the member to be assembled.

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