JP2006203994A - Cutter for casing of scrapped motor and its method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically perform the cutting of the casing of a scrapped motor easily and in a short time. <P>SOLUTION: This cutter is composed of a rotary table 5 which is provided rotatably on an erected bed 3, a supporter 7 which supports the scrapped motor W vertically on the rotary table, two pieces of columns 9L and 9R for torches which are erected right and left on the rear side of the bed, torch main bodies 13L and 13R which can move vertically to each torch column, each plasma torches 73L and 73R which is clamped to the tips of the torch main bodies by clamp members 67L and 67R, each positioning member 49L and 49R which positions each plasma torch in each preset position, a rotation detecting means 25 which stops the rotary table when it turns once, and detection means 109L, 109R; 117L, 117R; 119L, 119R for each positioning which detect each plasma torch so as to position it in each preset position by pushing up or pushing down each positioning member. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an apparatus for cutting a casing of a waste motor in which a motor used in, for example, a refrigerator or an air conditioner has been used, and a method thereof.

  The recycling law was enacted, and each home appliance manufacturer was obliged to collect waste home appliances such as refrigerators and air conditioners. The waste motor built into this waste home appliance is dismantled. In this waste motor, an electric motor composed of a rotor and a stator and an operating portion of the electric motor are built in a single, solid cylindrical casing. In order to take out the electric motor from the casing, the casing is cut, and further, the electric motor is disassembled, separated and collected into a copper material and a material other than the copper material, and recycled.

  And as a method of cutting the casing, for example, in Patent Document 1, an intermediate upper half casing piece of an upper half of an intermediate portion that houses a stator of an electric motor, a casing front portion that houses the operating portion, There is known a method of cutting into three parts using a single plasma torch at the casing rear part other than the middle upper half casing piece and the casing front part.

  That is, as shown in FIG. 13, the left end portion of the casing 103 is chucked and held by the chuck claw 105 in a state where the casing 103 of the waste motor 101 is horizontally tilted, and the plasma torch 107 is moved along the outer periphery of the casing 103. Then, the casing 103 is relatively moved along the locus L, and the casing 103 is cut into three pieces and disassembled. More specifically, the nozzle end of the plasma torch 107 is set at a start point S on the outer periphery of the casing 103 corresponding to the front end position of the stator 109 of the electric motor, and the plasma torch 107 is moved forward in the longitudinal direction of the casing 103 and fixed. A straight cut is made to the P1 point at the rear end of the child 109, then the waste motor 101 is rotated 180 ° to make a semicircular cut to the P2 point, and then the plasma torch 107 is moved backward from the P2 point to the start point. A straight line is cut to P3 point located on the same circumference as S, and then the casing 103 is rotated 360 ° to cut once to P3 point.

As a result, the casing 103 of the waste motor 101 has an intermediate upper half casing 103A that covers the upper half of the stator 109, a casing front portion 103B that incorporates an operating portion 113 that connects the rotor 111, and Cut into three parts of the casing rear part 103C other than the middle upper half casing 103A and the casing front part 103B. After that, after removing from the chuck claw 105, the fixing is removed from the casing 103 and the three casing pieces of the intermediate upper half casing 103A, the casing front part 103B, and the casing rear part 103C by impact by natural gravity drop or by manual work. It is disassembled into four members of the child 109.
Japanese Patent Laid-Open No. 200-176430

  By the way, in the cutting method of the casing 103 of the conventional waste motor 101 described above, since the casing 103 is cut by one plasma torch 107, there is a problem that it takes too much cutting time for cutting. In addition, by linear cutting from the start point S to P1 point, semicircular cutting from P1 point to P2 point, linear cutting from P2 point to P3 point, and by rotating the casing 103 from P3 point by 360 ° Since the process of four times of the round cut | disconnection which makes a round to P3 point is required, control operation of one plasma torch 107 is difficult. Furthermore, it is necessary to hold the cylindrical casing 103 of the waste motor 101 in the horizontal state from the vertical direction to the chuck claw 105, and it is difficult for the operator to repeatedly hold the casing 103 from the vertical direction to the horizontal direction. However, there is a problem that the labor is very difficult because of heavy labor.

  The present invention has been made to solve the above-described problems.

  In order to achieve the object to be solved by the present invention, a waste motor casing cutting apparatus according to claim 1 of the present invention comprises a rotary table rotatably provided on a standing bed, and the rotary table. A support device for supporting the waste motor vertically, two torch columns erected on the left and right of the rear side of the bed, and a vertically moving member that can move up and down with respect to each torch column The main body for torch provided, each plasma torch clamped by a clamp member at the tip of the main body for torch, and each positioning member for vertical movement for positioning each plasma torch at each preset processing position in the vertical direction Rotation detecting means that stops when the rotary table makes one revolution, and each plasma torch is moved up and down by pushing up or down each positioning member. And the positioning detection means for detecting to be positioned in the set position, in which characterized in that it is configured.

  A waste motor casing cutting apparatus according to a second aspect of the present invention is the waste motor casing cutting apparatus according to the first aspect of the present invention, wherein the plasma torches are positioned at a machining position and a retracted position, respectively. The torch main body is provided with a machining / retraction positioning groove.

  According to a third aspect of the present invention, there is provided a method of cutting a casing of a waste motor according to the present invention in which two rotary tables are provided on a bed and the casing of the waste motor is vertically supported by a support provided on the rotary table. In the waste motor casing cutting method for cutting the waste motor casing by the plasma torch, the waste motor casing is cut into four parts based on the following two steps.

(A) Each setting with each plasma torch while rotating the rotary table once in one direction in a state where the plasma torches are positioned at preset processing positions on the upper and lower sides of the casing of the waste motor which are substantially opposite to each other. Cutting the circumference of the casing of the waste motor at a processing position;
(B) a step of raising one plasma torch at each set machining position and lowering the other plasma torch to cut a longitudinal portion on the outer periphery of the casing of the waste motor to a position corresponding to each set machining position;
According to a fourth aspect of the present invention, there is provided a waste motor casing cutting method according to the third aspect of the present invention, wherein when the next waste motor casing is cut, each setting process is performed. The process is repeated based on the steps (A) and (B) with the vertical position corresponding to the position as a reference.

  As can be understood from the above description of the embodiments of the invention, according to the waste motor casing cutting apparatus and method of the present invention according to claims 1 and 3, the waste motor casing is constituted by two plasma torches. Can be automatically cut in a shorter time than in the prior art, and a wasteful time in the conventional manual operation can be saved. In addition, the work of the operator can be reduced.

  According to the waste motor casing cutting device of the present invention according to claim 2, when cutting is performed, each plasma torch is always positioned in a processing positioning groove provided in each of the torch main bodies for cutting. Therefore, it is not necessary for the operator to hold each plasma torch at the time of cutting, and the cutting can be performed while being held in a stable state. In addition, when not being cut, each plasma torch is always positioned and retracted in a retraction positioning groove provided in each torch main body, so that the operator holds each plasma torch during non-cutting processing. It is not necessary to carry out other operations while being held in a stable state.

  According to the method for cutting the casing of the waste motor of the present invention according to claim 4, when the casing of the next waste motor is cut, the steps (A) and (B) are performed without moving each plasma torch. Accordingly, it is possible to repeatedly and continuously perform the cutting process, and it is possible to improve the productivity of the cutting process.

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

Referring to FIGS. 1 and 2, a waste motor casing cutting device 1 includes a bed 3 that is erected, and a rotatable turntable 5 is provided on the bed 3. On the rotary table 5, a support 7 for supporting a waste motor W to be cut is provided. The support 7 have a circular hole 7A so allowed to support the three legs W _B provided in the lower part of the casing W _A waste motor W so allowed to support stably the waste motor W vertically shape The hollow cylindrical member 7B is formed. The bottom _{W C} of the casing _{W A} is within the hole 7A.

  Torch columns 9L and 9R are erected on the left and right sides of the rear part on the bed 3. The torch columns 9L and 9R are provided with vertically moving members 11L and 11R that are movable up and down. The vertically moving members 11L and 11R are provided with torch main bodies 13L and 13R, and the torch main bodies 13L and 13R are provided with torch nozzles 15L and 15R.

  The rotary table 5 is provided with an upper rotary table 17 and a lower rotary table 19 in a fitted state with reference to FIGS. 3, 4, and 5. A rotary shaft 21 is provided almost at the center of the back surface of the upper rotary table 17, and a gear 23 is attached to the rotary shaft 21. For example, a dog 27 in the rotation detecting means 25 is provided on a part of the back surface of the upper rotary table 17.

  A fixing member 31 having a hole 29 for receiving the rotating shaft 21 is provided on the upper surface of the lower rotating table 19 substantially at the center. A gear 33 that meshes with the gear 23 is provided on the right side of the fixing member 31 in FIG. A rotary table rotary motor 35 connected to the gear 33 is attached to the back side of the lower rotary table 19. In FIG. 4 of the lower rotating table 19, rollers 37 are rotatably provided at four positions, upper, lower, left and right, and a limit switch 39 for detecting one rotation of the upper rotating table 17 by contacting the dog 27 is provided. ing. In FIG. 4 of the lower rotary table 19, plasma carbon brushes 41 for conducting the torch nozzles 15 </ b> L and 15 </ b> R are provided around the fixed member 31 at the upper, lower and left portions.

  With the above configuration, when the rotary table 5 is rotated once, when the rotary motor 35 for the rotary table is driven in FIG. 5 and the gear 33 is rotated, for example, clockwise, the gear 23 is rotated counterclockwise. As a result, the upper rotary table 17 is rotated counterclockwise with respect to the lower rotary table 19. Then, after the dog 27 is separated from the limit switch 39, it is detected that the dog 27 is rotated once by contacting the limit switch 39. Each roller 37 serves to smoothly rotate the upper rotary table 17 when the upper rotary table 17 is rotated with respect to the lower rotary table 19.

  As shown in FIG. 2, the vertical movement members 11L and 11R have, for example, ball screws 43L and 43R at the upper and lower portions of the torch columns 9L and 9R, that is, upper and lower portions in the direction perpendicular to the paper surface in FIG. It is provided extending in the vertical direction. Nut members 45L and 45R are screwed onto the ball screws 43L and 43R, and the nut members 45L and 45R are integrated with the vertical movement members 11L and 11R. The ball screws 43L and 43R are connected to vertical motors 47L and 47R attached below the bed 3.

  With the above configuration, when the vertical motors 47L and 47R are driven and the ball screws 43L and 43R are rotated, the nut members 45L and 45R are moved up and down, and the vertical movement members 11L and 11R are moved up and down.

  The vertical movement members 11L and 11R are provided with torch main bodies 13L and 13R. More specifically, vertical movement positioning members 49L and 49R are provided on the vertical movement members 11L and 11R, and support members 51L and 51R are integrated. The support members 51L and 51R are rotatably provided by pins 53L and 53R in the horizontal direction in FIG. 2, and stoppers 55L and 55R integrated with the support members 51L and 51R are the vertical movement members 11L and 11R. It doesn't move any more. A spring (not shown) is provided on the outer periphery of the pins 53L and 53R so that the torch nozzles 15L and 15R are always urged to the machining position.

  As shown in FIGS. 6, 7 and 8, there are positioning blocks 57L for positioning the torch nozzles 15L and 15R at the machining position and at the retracted position at the front portions of the support members 51L and 51R. , 57R are integrated. Processing positioning grooves 59L and 59R for positioning the torch nozzles 15L and 15R at processing positions and retraction positioning grooves 61L and 61R for retracting the torch nozzles 15L and 15R are provided in front portions of the positioning blocks 57L and 57R.

  The rear ends of the torch arms 63L, 63R are attached to the positioning blocks 57L, 57R with pins 65L, 65R. Clamp members 67L and 67R are provided at the front ends of the torch arms 63L and 63R. The clamp members 67L and 67R are composed of upper clamp members 69L and 69R and lower clamp members 71L and 71R, and the torches 73L and 73R having the torch nozzles 15L and 15R at the tip are the upper clamp members 69L and 69R and the lower clamp members. The clamp members 71L and 71R are clamped.

  The flip-up arms 75L and 75R are such that the tip of the short arm 77 and the tip of the long arm 79 are integrated by a connecting arm 81, and a gap is provided between the short arm 77 and the long arm 79. The side portions of the clamp members 67L and 67R of the torch arms 63L and 63R are inserted into the gap, and the flip-up arms 75L and 75R and the torch arms 63L and 63R are connected by pins 83L and 83R. Lever 85L, 85R is integrated with the front end of the long arm 79 in the raising arms 75L, 75R. In addition, the distal end of the long arm 79 is always urged by the springs 87L and 87R with respect to the distal ends of the torch arms 63L and 63R. The short arm 77 has pins 89L and 89R protruding inward, and the pins 89L and 89R are positioned in the machining positioning grooves 59L and 59R or the retraction positioning grooves 61L and 61R formed in the positioning blocks 57L and 57R. It has become so. FIG. 6 shows a state in which the pins 89L and 89R are positioned in the machining positioning grooves 59L and 59R.

  With the above configuration, when the operator holds the levers 85L and 85R in FIG. 6 and rotates the levers 85L and 85R in the clockwise direction as indicated by the arrows, the arms 75L and 75R for flip-up rotate in the same direction. As a result, the torch arms 63L and 63R are also rotated together to extend the springs 87L and 87R, the pins 89L and 89R are disengaged from the processing positioning grooves 59L and 59R, and the spring arms 75L and 75R are rotated in the same direction. When moved, the pins 89L and 89R are positioned in the retraction positioning grooves 61L and 61R. In this state, the torch nozzles 15L and 15R are retracted from the processing position. By performing an operation reverse to the above operation, the pins 89L and 89R enter the processing positioning grooves 59L and 59R, and the torch nozzles 15L and 15R are positioned at the processing positions.

  Referring again to FIGS. 1, 2 and 6, support cylinders 91L and 91R extending in the vertical direction are erected on the outside of the torch columns 9L and 9R. Are formed with guide grooves 93 </ b> L and 93 </ b> R extending in the vertical direction. L-shaped sliders 95L and 95R guided by the guide grooves 93L and 93R are provided. Support members 97L and 97R whose ends are U-shaped are integrated on the outside of the sliders 95L and 95R. The lower ends of the sliders 95L and 95R are integrated with positioning poles 99L and 99R extending in the vertical direction. The positioning poles 99L and 99R are provided so as to be movable up and down. The positioning poles 99L and 99R are provided with upper and lower positioning blocks 101L and 101R; 103L and 103R that are movable in the vertical direction. In addition, the lower positioning blocks 101L, 101R; 103L, 103R are integrated with contact blocks 105L, 105R; 107L, 107R, which are in contact with the vertical movement positioning members 49L, 49R, respectively.

The sliders 95L and 95R are integrated with the upper ends of the positioning poles 99L and 99R. Further, one ends of dogs 109L and 109R as positioning detecting means are fixed to the U-shaped portions which are the tip portions of the support members 97L and 97R by pins 111L and 111R. The dogs 109L and 109R are pivotally supported by pins 115L and 115R in the left and right inner sides of the boxes 113L and 113R provided on the top of the torch columns 9L and 9R. In addition, limit switches 117L and 117R; 119L and 119R as positioning detecting means are provided below and above the boxes 113L and 113R.
With the above configuration, when the vertical movement members 11L and 11R are moved upward, the vertical movement positioning members 49L and 49R move in the same direction, and the contact blocks of the upper positioning blocks 101L and 101R that are pre-positioned. When hitting 105L and 105R, positioning poles 99L and 99R are moved upward. Then, the sliders 95L and 95R move upward, and the support members 97L and 97R also move together. As a result, the dogs 109L and 109R rotate about the pins 115L and 115R and contact the limit switches 117L and 117R. As a result, the upper positioning blocks 101L and 101R are stopped and positioned at predetermined positions.

  Similarly, when the vertical movement members 11L and 11R are moved downward, the vertical movement positioning members 49L and 49R move in the same direction, and the contact blocks 107L of the previously positioned lower positioning blocks 103L and 103R are moved. , 107R, the positioning poles 99L, 99R are moved downward. Then, the sliders 95L and 95R move downward, and the support members 97L and 97R also move together. As a result, the dogs 109L and 109R rotate about the pins 115L and 115R and contact the limit switches 119L and 119R. As a result, the lower positioning blocks 103L and 103R are stopped and positioned at predetermined positions.

  Although not shown in the figure, an operation panel is provided on the bed 3 and various lamps and switches are provided on the operation panel. For example, a power lamp, power on / off switch, origin indicator lamp, plasma torch switch, turntable on / off switch, manual / automatic switch, etc. are provided to enable automatic or manual operation. ing. Also provided is a control panel for controlling the rotary motor 35 for the rotary table, the upper and lower motors 47L and 47R, and the torches 73L and 73R.

  A smoke exhaust hood 121 is erected as shown in FIG. 9 above the torch columns 9L and 9R, and a smoke exhaust device 123 is provided in the smoke exhaust hood 121. A duct 125 is connected to the upper part of the smoke exhaust device 123. As shown in FIG. 10, the smoke exhaust device 123 includes a smoke exhaust casing 127 having a rectangular shape, for example, and a water storage chamber 129 extending in the left-right direction is provided in the smoke exhaust casing 127. ing. A water supply pipe 131 is connected to the right side of the water storage chamber 129. Further, a water discharge pipe 133 is connected to, for example, the left side of the lower part of the smoke exhaust casing 127. A plurality of spray nozzles 135 are connected at appropriate intervals in the left-right direction of the water storage chamber 129. A filter 137 is provided on the upper part of the smoke exhaust casing 127.

  With the above configuration, water is supplied from the water supply pipe 131 and stored in the water storage chamber 129. In this state, when a blower (not shown) connected to the tip of the duct 125 is operated and sucked from the duct 125, the waste motor W is cut by the plasma irradiated from the torch nozzles 15L and 15R of the torches 73L and 73R. The generated flue gas is sucked into the flue gas casing 127 and sent to the water storage chamber 129. The flue gas sent to the water storage chamber 129 is bubbled and oil, dust and water are jetted from a plurality of jet nozzles 135, and the oil and dust are adsorbed by the filter 137, so that clean air is discharged from the duct 125. Discharged. The water jetted from the plurality of jet nozzles 135 accumulates in the lower part of the smoke exhaust casing 127 and is further discharged from the water discharge pipe 133.

  Therefore, when the waste motor W is cut by the plasma irradiated from the torch nozzles 15L and 15R of the torches 73L and 73R, smoke is generated. However, since the oil and dust are discharged by the smoke exhaust device 123, the oil and dust Thus, the work environment can be maintained well without affecting the worker.

Next, the method of cutting a casing W _A waste motor W will be described with reference to cutting device 1 for cutting the casing W _A of the waste motor W,
(A) is set on the support 7 provided on the rotary table 5 the casing W _A in the vertical waste motor W.

  (B) The upper and lower positioning blocks 101L and 101R; 103L and 103R are positioned at predetermined positions, respectively.

(C) torch 73L, torch nozzle 15L of 73R, A casing _{W A} in waste motor shown in FIG. 11 by moving the 15R vertically, retracting the positioning groove 61L while positioned in the D position, for processing positioning the 61R When moved to the grooves 59L and 59R, the torch 73L and 73R torch nozzles 15L and 15R come into contact with the A and D positions.

(D) in this state, the torch 73L, the upper turntable 17 relative to the torch nozzle 15L, under plasma from 15R is driven to a rotary motor 35 for rotating the table at the same time is irradiated toward the casing _{W A} rotary table 19 of the 73R 11 is rotated counterclockwise in FIG. 11 and rotated once, the dog 27 comes into contact with the limit switch 39 and is stopped. As a result, the circumferential portion at positions A and C and the upper circumferential portion at positions B and D are cut.

(E) Next, when the vertical motors 47L and 47R are driven in FIG. 11 and the vertical movement members 11L are moved down the torches 73L and 73R, the vertical movement positioning members 49L are lowered, and when the vertical movement members 11R are raised, the vertical movements are performed. The positioning member 49R is raised. Torch 73L, torch nozzle 15L of 73R, 15R, respectively A position, B position from the D position, descends toward the position C, irradiated torch nozzle 15L while moving so as to rise from the 15R plasma casing _{W A.}

  (F) When the vertical movement positioning member 49L comes into contact with the contact block 107L provided in the lower positioning block 103L and further descends, the positioning pole 99L is lowered together with the contact block 107L, and the support member is interposed via the slider 95L. 97L also descends, the dog 109L rotates counterclockwise around the pin 115L, the tip of the dog 109L rises, comes into contact with the limit switch 119L, stops, and is cut from the A position to the B position.

  (G) Similarly, when the vertical movement positioning member 49R comes into contact with the contact block 105R provided in the upper positioning block 101R and further rises, the positioning pole 99R rises together with the contact block 105R to move the slider 95R. The support member 97R also rises, and the dog 109R rotates clockwise with the pin 115R as a fulcrum, the tip of the dog 109R rises, stops in contact with the limit switch 119R, and cuts from the D position to the C position. Is done.

(H) Then, a casing W _A waste motor W which is cleaved from the support member 7 is removed by the operator.

As a result, waste casing _{W A} of the motor W can be easily cut into 4 split of the upper portion _{W U,} the left and right portions _W L, _{W R,} the lower portion _{W D} as shown in FIG. 12. Moreover, since the two torches 73L and 73R are used and the upper rotary table 17 is rotated with respect to the lower rotary table 19, the cutting time is shorter than half of the conventional cutting time, that is, in a short time. Can do. Moreover, since the cutting process is performed by automatic operation, it is possible to save the conventional manual wasteful time. In addition, the work of the operator can be reduced.

After cutting once the cutting described above, when performing the cutting of the casing W _A of the following waste motor W, in Fig. 11, B ended at the first, is rotated at the position C, Next, when the cutting process is continued from the B position to the A position and from the C position to the D position, and when the cutting process is continuously performed, two cutting processes are continuously performed as one cycle. Cutting can be performed.

Further, when describing the different cutting casing W _A waste motor W,
(I) After performing the steps (A), (B), and (C) as described above, the torch nozzles 15L and 15R of the torches 73L and 73R are lowered from the A position to the B position and the torch nozzles 15L of the torches 73L and 73R , while increasing 15R from the position D in FIG. 11 for example to the C position, the torch 73L, torch nozzle 15L of 73R, is emitted toward the plasma to the casing _{W a} from 15R.

  (J) When the vertical movement positioning member 49L comes into contact with the contact block 107L provided in the lower positioning block 103L and further descends, the positioning pole 99L is lowered together with the contact block 107L, and the support member is interposed via the slider 95L. 97L also descends, the dog 109L rotates counterclockwise around the pin 115L, the tip of the dog 109L rises, comes into contact with the limit switch 119L, stops, and is cut from the A position to the B position.

  (K) Similarly, when the vertical movement positioning member 49R comes into contact with the contact block 105R provided in the upper positioning block 101R and further rises, the positioning pole 99R rises together with the contact block 105R to move the slider 95R. The support member 97R also rises, and the dog 109R rotates clockwise with the pin 115R as a fulcrum, the tip of the dog 109R rises, stops in contact with the limit switch 119R, and cuts from the D position to the C position. Is done.

(L) torch 73L, torch nozzle 15L of 73R, 15R respectively B position, after being stopped at the position C, the torch 73L, 73R of the torch nozzle 15L, rotating simultaneously with the plasma from the 15R is irradiated toward the casing _{W A} table When the upper rotary table 17 is rotated counterclockwise in FIG. 11, for example, by rotating the rotary motor 35 for driving and rotating once, the dog 27 comes into contact with the limit switch 39 and is stopped. As a result, the circumferential portion at positions A and C and the upper circumferential portion at positions B and D are cut.

(M) The casing W _A waste motor W which is cleaved from the support member 7 is removed by the operator.

As a result, waste casing _{W A} of the motor W can be easily cut into 4 split of the upper portion _{W U,} the left and right portions _W L, _{W R,} the lower portion _{W D} as shown in FIG. 12. In addition, since the two torches 37L and 37R are used and the upper rotary table 17 is rotated with respect to the lower rotary table 19, the cutting time is shorter than half the conventional cutting time, that is, in a short time. Can do. Moreover, since the cutting process is performed by automatic operation, it is possible to save the conventional manual wasteful time. In addition, the work of the operator can be reduced.

  When the next cutting process is performed after the above-described cutting process is performed once, in FIG. 11, the rotation is performed at the B and C positions completed at the first time, and then from the B position to the A position. In the case where the position is raised and lowered from the position C to the position D, and the cutting process is continuously performed, the cutting process can be performed continuously with two cutting processes as one cycle.

Two plasma torches 73L, by cutting the casing W _A waste motor W by 73R, than conventional can be automatically disconnected for a short time, it is possible to avoid wasting time by conventional manual. In addition, the work of the operator can be reduced.

  When cutting, the plasma torches 73L and 73R can always be cut and processed in the processing positioning grooves 59L and 59R provided in the torch main bodies 13L and 13R. There is no need to hold the plasma torches 73L and 73R, and the plasma torches 73L and 73R can be held in a stable state and cut. When the cutting process is not performed, the plasma torches 73L and 73R are always retracted in the retracting positioning grooves 61L and 61R provided in the torch main bodies 13L and 13R. It is not necessary to hold the plasma torches 73L and 73R at the time of non-cutting processing, and other operations can be performed while being held in a stable state.

  When the waste motor casing cutting device 1 of this embodiment is installed at a position opposite to each other with the worker as the center, two workers can be easily handled by one worker.

It is a front view of the casing cutting device of the waste motor of this invention. It is a top view in FIG. It is a bottom view of the upper turntable in a turntable. It is a top view of the lower rotation table in a rotation table. It is a top sectional view in the state where the upper rotary table was put on the lower rotary table. It is the perspective view which showed the whole structure of the left and right torch nozzles. It is a VII arrow line view in FIG. It is a VIII arrow line view in FIG. It is a perspective view of the smoke hood provided above the casing cutting device of a waste motor. It is front sectional drawing of the smoke exhaust apparatus provided in the smoke exhaust hood. It is explanatory drawing explaining the cutting method of the casing of a waste motor. It is explanatory drawing of the state which cut | disconnected the casing of the waste motor. It is explanatory drawing explaining the cutting method of the casing of the conventional waste motor.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Waste motor casing cutting device 3 Bed 5 Rotating table 7 Support 9L, 9R Torch column 11L, 11R Vertical motion member 13L, 13R Torch main body 15L, 15R Torch nozzle 17 Upper rotating table 19 Lower rotating table 21 Rotating shaft 23 Gear 25 Rotation detection means 27 Dog 33 Gear 35 Rotary motor for rotary table 37 Roller 39 Limit switch 41 Plasma carbon brush 43L, 43R Ball screw 45L, 45R Nut member 47L, 47R Vertical motor 49L, 49R Vertical motion positioning member 51L, 51R Support member 55L, 55R Stopper 57L, 57R Positioning block 59L, 59R Processing positioning groove 61L, 61R Retraction positioning groove 63L, 63R Torch arm 67L, 67R Clamp Material 73L, 73R Torch 75L, 75R Bounce arm 85L, 85R Lever 87L, 87R Spring 91L, 91R Support cylinder 93L, 93R Guide groove 95L, 95R Slider 97L, 97R Support member 99L, 99R Positioning pole 101L, 101R Top Position block 103L, 103R Lower position block 105L, 105R Contact block 107L, 107R Contact block 109L, 109R Dog 115L, 115R Pin 117L, 117R Limit switch 119L, 119R Limit switch 121 Smoke hood 123 Smoke exhaust device 125 Duct 127 Smoke exhaust casing 129 Water storage chamber 131 Water supply pipe 133 Water discharge pipe 135 Injection nozzle 137 Filter

Claims (4)

  A rotary table rotatably provided on a bed that is erected, a support for vertically supporting a waste motor on the rotary table, and two erected on the left and right of the rear side of the bed A torch column, a torch body provided on a vertically moving member movable up and down with respect to each torch column, each plasma torch clamped by a clamp member at the tip of the torch body, and each plasma Each vertical movement positioning member that positions the torch at each preset processing position in the vertical direction, rotation detection means that stops when the rotary table makes one rotation, and each positioning member is pushed up or down vertically. Each of the plasma torches includes a positioning detecting means for detecting the positioning at each of the set positions. Packaging of the cutting device.   2. A cutting apparatus for a casing of a waste motor according to claim 1, wherein a processing / retraction positioning groove is provided in each torch main body in order to position each plasma torch at a processing position and a retreat position. A waste motor casing in which a rotary table is provided on a bed, and the casing of the waste motor is cut by two plasma torches in a state where the casing of the waste motor is vertically supported by a support provided on the rotary table. In this cutting method, the casing of the waste motor is cut into four parts based on the following two steps.
(A) Each setting with each plasma torch while rotating the rotary table once in one direction in a state where the plasma torches are positioned at preset processing positions on the upper and lower sides of the casing of the waste motor which are substantially opposite to each other. Cutting the circumference of the casing of the waste motor at a processing position;
(B) a step of raising one plasma torch at each set machining position and lowering the other plasma torch to cut a longitudinal portion on the outer periphery of the casing of the waste motor to a position corresponding to each set machining position; 4. When cutting the casing of the next waste motor, it is repeated based on the steps (A) and (B) with reference to the vertical position corresponding to each set processing position. The method for cutting the casing of the described waste motor.

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