JP5436385B2 - Engine cover oil drainer - Google Patents

Description

  The present invention relates to an oil removing device for an engine cover for removing lubricating oil supplied at the time of press working or the like in an engine cover manufacturing process installed in a building of a construction machine.

  An engine room that houses the engine is provided in the building of the construction machine. A cover that covers the upper part of the engine room is called an engine cover, and the engine cover can be opened upward. ing. An engine is installed in the engine cover, and a heat exchanger such as a radiator or an oil cooler is also installed. Since the engine and various devices housed in the engine room may be tall, for example, as shown in Patent Document 1, the engine cover has a trapezoidal trapezoidal shape, and other canopy parts of the building It is higher than the cover to ensure a large space. The engine cover is connected to the wall surface on the building side by a hinge and can be opened upward. Here, since the engine cover is large and heavy, one end of a gas spring for assisting when the engine cover is opened manually is attached. Further, some small parts may be connected to the engine cover, such as a catch for locking.

  The main body portion of the engine cover configured as described above is processed into a trapezoidal trapezoidal shape by drawing a metal such as a steel plate with a press. In addition, after this drawing process, punching process is performed to provide a plurality of openings for communicating the inside and outside of the engine room. The opening portion is for promoting ventilation in the engine room and circulation of cooling air by a cooling fan to the heat exchanger. Here, the ventilation opening is generally an elongated slit, and a punch hole may be combined in addition to the slit. Furthermore, the engine cover body has a flat edge around the upper cover of the building when the engine cover is closed, and the outer periphery is cut to adjust the shape of the edge. Here, when pressing or punching, lubricating oil is supplied between the press machine and the workpiece. Therefore, a large amount of lubricating oil is attached to the molded engine cover body.

  If the oil remains on the workpiece, it will hinder processing and processing in the subsequent processes. Therefore, the workpiece is washed to remove the oil adhering to the workpiece as a post-processing after pressing or punching. It will be. However, if cleaning is performed with a large amount of oil adhering to the workpiece, the cleaning liquid becomes heavily soiled and the drainage process becomes a problem. It is desirable to remove the oil as much as possible as a pretreatment for removing the oil with the cleaning liquid. For example, Patent Document 2 proposes removing oil so as to be wiped off by capillary action by rubbing the surface of a workpiece with a wiping body such as a sponge.

JP 2006-56326 A JP 61-193722 A

  By the way, in patent document 2 mentioned above, as a workpiece | work from which oil content is removed, it is a round bar-like member, and the operation | work which wipes off oil content over the whole with a sponge etc. can be performed easily. However, in the case of a complicated shape such as an engine cover or the like shown in Patent Document 1, and a complicated shape such as not only a flat surface but also a curved surface and a through hole, a sponge or the like is used. The operation of wiping with is extremely troublesome and has problems such as requiring a long time.

  Since both the front and back sides of the engine cover are smooth, if you lean it up and hold it in a roughly vertical state, the oil adhering to the surface will flow down by its own weight, and you can drain the oil . As a result, most if not all oil can be removed. However, since the engine cover has a trapezoidal trapezoidal shape having a predetermined height, an extremely large space is required if the engine covers are stood one by one.

  By the way, the canopy part of the engine cover is flat, but it is not completely flat and has some irregularities, so even if multiple engine covers are arranged so as to overlap each other, the front and rear engine covers are in close contact with each other Instead, it is common for some gaps to occur between them. Therefore, if a plurality of, for example, about 10 to 20 engine covers are stacked on each other and leaned against the holder and held in a vertical state, they can be stored compactly, and a large number of workpieces can be stored in a small space. Can be arranged.

  At the time of pressing and punching, which are the previous processes, the workpieces are processed and processed one by one. As a result, the processed workpieces are placed in a stacked state, and are stacked in this way. The work of transporting a predetermined number of works is carried using a crane when the work is large and heavy. This crane operation is a so-called slinging operation in which a nylon string is passed through a slit that is an opening for ventilation. However, since the nylon string rubs against the edge of the slit, it is worn and damaged at an early stage. In particular, the oil draining work is a space for stock, and the position where the work is stacked and stocked is in the area where the work is processed and work, and it may be separated from the area stocked for oil draining, In that case, the conveyance distance by a crane will become long. In this case, there is a problem that the nylon string is more severely damaged and the replacement frequency of the nylon string is increased.

  The present invention has been made in view of the above points, and the object of the present invention is an engine cover main body, which is a large size and a state in which a plurality of works, which are heavy objects, are stacked and stacked. The object is to enable easy and smooth conveyance to the oil draining stage.

  In order to achieve the above-mentioned object, the present invention is a trapezoidal trapezoidal shape by pressing and punching, and for removing oil from the front and back surfaces of a work consisting of an engine cover body in which a plurality of slits are formed in the canopy. A workpiece stacking area in which the workpieces are stacked in a stacked state so as to form a workpiece stack composed of a predetermined number of workpieces, and from the workpiece stacking region to the slit. Take out to cause the workpiece laminate to be hooked, workpiece laminate transfer means for conveying the workpiece laminate in a standing state, and the workpiece laminate is supplied from the workpiece laminate transfer means, It is characterized by comprising an oil draining stage provided with a work holding member for holding the work laminate in a standing state.

  By stacking a plurality of workpieces composed of the engine cover main body into a workpiece laminate, it can be stored compactly. The number of workpieces constituting the workpiece laminate is set as desired based on various conditions, that is, the space of the oil draining stage, the weight of the workpiece during handling, and each process of manufacturing the engine cover. Specifically, it is desirable to stack about 5 to 20 engine cover bodies. The workpiece laminate is placed so as to be sequentially stacked after a predetermined processing / processing step in the manufacturing stage. Since the workpieces are stacked on top of each other, they are stacked while maintaining a predetermined gap with the workpiece located in the lower stage by the action of their own weight.

  By causing the predetermined number of workpieces to change posture from the flat stacked state, the oil such as lubricating oil adhering to the surface, that is, the outer surface and the inner surface is removed so as to sag. Therefore, by providing an oil pan at the lower position of the workpiece stack that is held in a standing state, the surroundings are prevented from being soiled to a minimum. For this purpose, an oil removal stage is provided.

  For example, a work flat area provided with a pedestal portion is set, and the work is placed on the work flat area so as to sequentially overlap. And a workpiece laminated body transfer means is provided in order to change the posture so that the workpiece laminated body is conveyed from the workpiece flat area to the oil removal stage and the workpiece laminated body is leaned. The workpiece laminate transfer means conveys a workpiece raising member for changing the workpiece laminate from a flat stacked state to a vertical state, and a workpiece laminate raised by the workpiece raising member in an upright state. It is comprised from a conveyance member. A conveyance member is comprised from what provided the workpiece | work support part in the trolley | bogie which has a wheel. In order to raise the workpiece laminate, a slit formed in the workpiece is used, and the workpiece is stuck to the slit to be raised.

  For this purpose, a workpiece raising member is used. The workpiece pulling member can be configured to pull up and attach an arm to the frame-shaped main body. The raising arm is provided in two or more places on the frame-shaped main body, and is bent at the tip of the shaft portion that projects straight forward from the end surface of the frame-shaped main body. It is assumed to have a linear or curved shape with an angle of 90 degrees. In order to raise the workpiece laminate, a rotary shaft is provided at a lower position of the frame-shaped main body, and the rotary shaft is detachably engaged with the rotary shaft at a position close to the pedestal portion on which the workpiece is placed in the work stacking area. A shaft support member is provided.

  When the workpiece pulling member is configured as described above, the workpiece pulling member is detachably connected to the conveying member. A conveyance member is comprised from the trolley | bogie with a wheel, and provides a workpiece | work support part in this trolley | bogie. The work support part is composed of a plurality of struts and a bridging member that bridges between the struts, and the bridging member is provided with a hooking part, while the work pulling member is provided with an engaging member. The work raising member is connected to the conveying member by engaging the combined member with the hooking portion. And when the workpiece raising member is connected with the workpiece support part in a conveyance member, it is made to hold | maintain stably in this connection state. In order to hold the workpiece raising member in an inclined state, the column of the workpiece support portion is configured such that the surface of the column becomes an inclined wall portion. In addition, it is desirable from the viewpoint of stability and the like that the workpiece stack is engaged with the workpiece support portion side during conveyance. Therefore, when the work pulling member is connected to the work supporting part by providing a holding arm that can be engaged with a part of the slit of the work that is different from the part that is raised to the support and the arm is engaged with, The workpiece stack can be supported by the holding arm.

  The oil draining stage is provided with a work holding member, and the work stack may be transferred from the work pulling member to the work holding member, or while being engaged with the work pulling member, It can be connected to the work holding member, and after the oil draining process is completed, the work raising member can be separated from the work laminate and recovered.

  A large and heavy engine cover body is stacked to form a workpiece stack, and the workpiece stack is leaned on an oil removal stage to perform oil draining, so there are many oil removal stages in a compact space. The engine cover body can be drained at the same time, so that the work can be transported and kept in a standing state easily and smoothly.

It is a top view of the engine cover main body as a workpiece | work in which oil draining is performed. It is AA sectional drawing of FIG. It is explanatory drawing of the stage structure which shows one Embodiment of this invention. It is a front view of a workpiece | work laminated body transfer means. FIG. 5 is a left side view of FIG. 4. It is a front view which shows the structure of a workpiece raising member. It is operation | movement explanatory drawing of a workpiece raising member. It is a front view of a conveyance member.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, FIG.1 and FIG.2 shows the structure of the workpiece | work 1 which consists of an engine cover main body. As is apparent from these drawings, the workpiece 1 has a trapezoidal trapezoidal shape including a canopy portion 1a and an inclined surface portion 1b, and an end portion of the inclined surface portion 1b becomes a flange portion 1c having a predetermined width. ing. The canopy 1a is provided with a plurality of ventilation slits 2 arranged side by side.

  As shown in FIG. 3, the workpiece 1 has the trapezoidal trapezoidal shape described above by pressing and punching in the press stage 10, and the slit 2 is formed. 11, the workpieces 1 are sequentially stacked with the workpiece 1 lying face down. Here, the work 1 is kept in a slippery state by the lubricating oil supplied at the time of pressing, and therefore the newly laminated work 1 is only placed on the work 1 that has already been laminated. Thus, they are stacked in a predetermined position by the action of their own weight. Some unevenness is present on the inclined surface portion 1b of the workpiece 1, and therefore the upper and lower workpieces 1 and 1 are in close contact with each other, but most of the portions are held in a non-contact state.

  As shown in FIG. 3, when a predetermined number of workpieces 1, for example, 10 workpieces 1, are stacked, this is formed as a workpiece laminate 3, and the workpiece stack 3 is stacked in the oil draining device. Maintaining the state, changing the posture so as to be in the vertical state, transported to the oil draining stage 12, and held in a standing state for a predetermined time, the oil draining process is performed. For this purpose, a workpiece laminate transfer means 13 is disposed between the pedestal 11 and the oil removal stage 12.

  The workpiece laminated body transfer means 13 holds the workpiece laminate 3 together with the workpiece raising member 20 to take out the workpiece laminated body 3 from the pedestal portion 11, and holds the workpiece laminated body 3 together with the workpiece raising member 20. It is comprised from the conveyance member 30 conveyed to the stage 12, and is integrated as shown in FIG.4 and FIG.5. Further, the workpiece pulling member 20 can be separated from the conveying member 30.

  First, the configuration of the workpiece raising member 20 will be described with reference to FIGS. The workpiece pulling member 20 has a frame-shaped main body 21, and the frame-shaped main body 21 has a hook on the upper bridge portion 21 a that engages with a crane-side hook 4 (FIG. 3). 22 is provided. In addition, a horizontal beam 23 is provided over the middle of the frame-shaped main body 21 so as to extend over the frame. The pulling arms 24 and 24 that protrude forward protrude from the horizontal beam 23. It is provided as follows. The pulling-up arm 24 is made of an L-shaped rod member, extends straight from the connecting portion to the horizontal rail 23 to a predetermined length, and is bent upward from the middle. The diameter of the raising arm 24 is smaller than the width of the slit 2 of the workpiece 1, and the straight shaft portion is longer than the total length of the portion of the workpiece laminate 3 where the slit 2 is formed. It has a thickness. Further, the height of the bent portion is shorter than the length of the slit 2.

  On the other hand, brackets 25, 25 are provided protruding from the lower end of the main body frame 21, and a shaft 26 is provided between the brackets 25, 25, and a pair of receiving arms 27 are provided. It has been. The receiving arm 27 protrudes in the same direction as the raising hook 24, extends straight from the main body frame 21 to an intermediate position, and the tip end portion is bent obliquely upward. The receiving arm 27 is used to hold the workpiece laminate 3 so that the workpiece laminate 3 does not fall out of the workpiece 20 when the workpiece laminate 3 is raised. Is kept in a non-contact state.

  The workpiece pulling member 20 pulls up the workpiece laminate 3 stacked in a flat state on the pedestal portion 11 installed on the press stage 10 from the face down to the vertical state, and is close to the pedestal portion 11. As shown in FIG. 7, V-shaped shaft support members 14 and 14 are erected at the position where the shaft 26 of the workpiece pulling member 20 can be engaged with the shaft support member 14. It has become. Then, the workpiece pulling member 20 is placed on the upper part of the workpiece laminate 3, and the arrow is centered on the shaft 26 that is in contact with the pivot support member 14 with the arm 24 for raising being inserted into the slit 2 and inserted. As shown in FIG. 7, the workpiece laminate 3 is pulled up and can be brought into a vertical state by being turned upward.

  Further, as is clear from FIGS. 3, 4, and 8, the conveying member 30 has a pair of left and right flat columns 32, 32 erected on the carriage 31, and the distal ends of the columns 32, 32. A bridging portion 33 is provided between them. The bridging member 33 is provided with latches 34, 34 which engage with the horizontal rail 23 provided on the frame-like main body 21 of the work pulling member 20 so as to be detachable. Each support 32 is provided with a mounting plate 35 extending outward. The mounting plate 35 is pulled when the work pulling member 20 is engaged with the latch 34. A holding arm 36 that protrudes in the same direction as the raising arm 24 is attached. Accordingly, the work support portion 37 is constituted by the support column 32, the bridging portion 33, the latch 34, and the holding arm 36.

  The holding arm 36 is for holding the workpiece laminate 3 when the workpiece raising member 20 is connected to the conveying member 30, and is located outside the raising arm 24 and is raised. It protrudes from the arm 24 for use. Further, when the workpiece pulling member 20 is connected, the holding arm 36 of the conveying member 30 is positioned higher than the tip of the pulling arm 24, and the difference in height is due to the slit 2 of the workpiece 1. It is smaller than the length of. Therefore, in a state where the workpiece pulling member 20 is connected to the conveying member 30, the holding arm 36 is inserted into the slit 2 positioned outside the slit 2 through which the pulling arm 24 is inserted, and the workpiece pulling up is performed. In a state where the upper cross-linking plate portion 21 a of the main body frame 21 of the shim member 20 is engaged with the latch 34, the workpiece laminate 3 is supported by the holding arm 36. A wheel 38 is provided at a required location on the carriage 31 of the conveying member 30. As a result, the workpiece laminate 3 is transferred from the press stage 10 to the oil removal stage 12.

  The workpiece laminate 3 is supported by the workpiece support portion 37 of the conveyance member 30 via the workpiece pulling member 20, and this conveyance member 30 is for conveying the workpiece laminate 3 and is moved. In order to hold the workpiece laminate 3 and the workpiece pulling member 20 in a stable state sometimes, an inclined wall block 39 is attached to the support column 32. The inclined wall block 39 is provided at a position on the lower side of the support column 32, and is continuously thickened as it goes downward. The workpiece pulling member 20 is held with respect to the conveying member 30 by engaging the cross rail 23 with a latch 34 provided at an upper position thereof, and the workpiece pulling member 20 is in a vertical state. Rather, it takes a slightly inclined posture. As a result, the workpiece pulling member 20 engaged with the workpiece laminate 3 is held in a state of being connected to the workpiece support portion 37 so as to be pressed against the inclined wall block 39 by the action of gravity.

  As shown in FIG. 3, the oil draining stage 12 is provided with a workpiece holding member 15 that holds the workpiece laminate 3 in a leaning state. The work holding member 15 includes a base portion 15a provided with a holding portion 15b. The holding portion 15b can be fixedly provided on the base portion 15a, but is preferably detachable. In addition, an oil tray 40 is disposed at a lower position of the work holding member 15. The workpiece stack 3 conveyed by the conveyance member 30 of the workpiece stack transfer means 13 can be supplied to the workpiece holding member 15 separately from the workpiece pulling member 20, but in FIG. The workpiece laminate 3 is installed in a state where it is mounted on the workpiece pulling member 20.

  The oil draining device for the engine cover in the present embodiment is configured as described above, and the workpiece 1 is pressed on the press stage 10 by using a predetermined press machine, and the slit 2 is punched. And sequentially stacked on the pedestal 11. Here, in the base part 11, the workpiece | work 1 is piled up so that it may face down. The workpiece 1 at this time is supplied with lubricating oil in order to ensure the smoothness of processing, and a large amount of lubricating oil is adhered after pressing. Therefore, when a predetermined number, for example, 10 workpieces 1 are laminated, the workpiece laminated body 3 is taken out in an integrated state and sent to the oil removal stage 12.

  For this purpose, the workpiece pulling member 20 is engaged with the workpiece laminate 3. That is, the raising arm 24 is inserted into the slit 2 of each workpiece 1 in the workpiece laminate 3. Further, the shaft 26 provided on the bracket 25 of the workpiece pulling member 20 is engaged with the shaft support member 14. Here, since the raising arms 24 are provided at two positions on the left and right sides and the slits 2 are provided at a plurality of positions, the raising arms 24 are raised at the slits 2 at positions where the left and right balance can be achieved. The cutting arm 24 is inserted. In addition, the canopy part 1a of the work 1 at the uppermost end constituting the work laminate 3 is held in a state facing the frame-shaped main body 21 side.

  In this state, the crane is operated so that the suspension-side hook 4 of the crane is engaged with the hanging-side hook 22 of the workpiece raising member 20 and the workpiece raising member 20 is pulled up. Then, the workpiece pulling member 20 rotates upward about the shaft 26, the workpiece pulling member 20 becomes vertical, and when the crane is further lifted, the shaft 26 is detached from the shaft support member 14. To do. Thereby, the posture of the workpiece laminate 3 is changed from the flat stacked state to the vertical state, and is taken out from the pedestal portion 11.

  The conveyance member 30 is disposed in the vicinity of the pedestal 11, and the work pulling member 20 suspended from the crane is brought close to the support column 32 of the conveyance member 30 and provided on the mounting plate 35 of the bridging member 33. The holding arm 36 is inserted into the slit 2. Then, the crosspiece 23 of the work pulling member 20 is engaged with a latch 34 provided on the bridging member 33 that bridges between the columns 32 and 32 of the carriage 31. As a result, the workpiece pulling member 20 is supported by the workpiece support portion 37 provided on the conveying member 30.

  In this state, the hanging hook 4 of the crane is pulled up and detached from the hanging hook 22 of the member 20. Then, the workpiece pulling member 20 is in contact with the inclined wall block 39 at the lower side portion with respect to the upper side portion of the frame-shaped main body 21 engaged with the latch 34, and the inclined wall block 39 is caused by the action of gravity. While being pressed, it is stably held so as to slide down to a predetermined position. For this reason, when moving the wheel 38 provided on the carriage 31 from the vicinity of the pedestal 11 to the oil draining stage 12 so as to roll, the workpiece pulling member 20 moves or is displaced. There is no fear and it is transported in a stable state.

  When the workpiece laminate 3 reaches the oil draining stage 12 by the workpiece laminate transfer means 13, the crane is operated again, and the suspension side hook 4 is engaged with the hanging side hook 22 provided on the workpiece raising member 20. Then, by moving the workpiece pulling member 20 toward the front of the workpiece support portion 37, the workpiece laminate 3 is detached from the holding arm 36. As a result, the workpiece laminate 3 is engaged with only the workpiece pulling member 20, and is mounted on the workpiece holding member 15 provided on the oil draining stage 12. Thereby, the workpiece laminate 3 is placed on the base portion 15a of the workpiece holding member 15 together with the workpiece raising member 20, and is held in a state of leaning on the holding portion 15b. By leaving in this state for several hours to several days, the oil component adhering to the front surface and the back surface of each workpiece 1 constituting the workpiece laminate 3 flows down by the action of gravity and is removed. Accordingly, the oil is recovered in the oil receiving tray 40 disposed below the base portion 15a of the work holding member 15, so that the surroundings are not soiled.

  Then, the new workpiece pulling member 20 is engaged with the workpiece laminate 3 in the pedestal portion 11, and this state is maintained until the conveying member 30 is conveyed to a position close to the pedestal portion 11 in this state. Wait while keeping. When the conveying member 30 moves to a predetermined position, the oil draining process for the next workpiece laminate 3 is started.

  Here, the workpiece laminate 3 is simply laminated with the workpiece 1 and is not connected and fixed to each other by a special connecting means, but without using a flexible binding tool such as a nylon sling, The workpiece laminate 3 can be transported safely and stably simply by inserting the raising arm 24 and the holding arm 36 through the slit 2. Moreover, both the raising arm 24 and the holding arm 36 are metal rods. Therefore, even if the work is repeated, the component parts may be damaged or deformed when the workpiece laminate 3 is transferred. Absent. Moreover, since only the workpieces 1 are stacked on the press stage 10, after passing through the oil removal stage 12, the workpieces 1 can be separated one by one and processed or processed. Further, the work 1 can be cleaned after the oil is drained, and since most of the oil is removed before the cleaning, cleaning is easy and contamination of the cleaning liquid can be minimized.

DESCRIPTION OF SYMBOLS 1 Work 2 Slit 3 Work laminated body 10 Press stage 11 Base part 12 Oil draining stage 13 Work laminated body transfer means 15 Work holding member 20 Work raising member 21 Frame-shaped main body 23 Horizontal beam 24 Lifting arm 30 Conveyance Member 31 Bogie 32 Post 33 Bridge member 34 Latch 36 Holding arm 37 Work support member 39 Inclined wall block

Claims (3)

A device for removing oil from the front and back surfaces of a work consisting of an engine cover body that is trapezoidal trapezoidal and has a plurality of slits formed in the canopy by pressing and punching,
A work stacking area in which the workpieces are stacked so that a plurality of sheets are stacked so as to form a workpiece stack composed of a predetermined number of works,
A workpiece laminate transfer means for taking out the workpiece laminate from the workpiece stacking area so as to cause the workpiece laminate, and transporting the workpiece laminate in an upright state;
An oil for an engine cover comprising an oil draining stage provided with a work holding member that is supplied with the work stack from the work stack transfer means and holds the work stack in a standing state. Cutting device. The workpiece laminate transfer means includes a trigger member that changes the posture of the workpiece stack in a flat state to a vertical state, and a transport member that transports the workpiece stack held by the trigger member. The conveying member is configured by erecting a work supporting portion that removably supports the raising member on a carriage having wheels, and the raising member serves as the engaging member on the frame-shaped main body. A raising arm that is inserted through the slit and is raised, and an engaging member that is detachably engaged with the conveying member, and the engaging member is detachably attached to the work support portion. The oil draining device for an engine cover according to claim 1, wherein a hooking portion to be engaged is provided. The work support portion includes a plurality of support columns erected on the carriage, and a bridging member is provided between the struts. The hooking portion is provided on the bridging member. An inclined wall portion for holding the raising member in a state inclined at a predetermined angle, and a holding arm that engages with the slit of the workpiece laminate, and connecting the raising member to the workpiece support portion. 3. The oil draining device for an engine cover according to claim 2, wherein the workpiece laminate is supported by the holding arm.

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