WO2019022228A1

WO2019022228A1 - Travel carriage

Info

Publication number: WO2019022228A1
Application number: PCT/JP2018/028234
Authority: WO
Inventors: 大輔加藤; 智太田; 雅敏皆原
Original assignee: 小池酸素工業株式会社
Priority date: 2017-07-27
Filing date: 2018-07-27
Publication date: 2019-01-31
Also published as: CN110944792B; CN110944792A; JP6792526B2; KR102525167B1; KR20200035421A; JP2019025501A

Abstract

[Problem] To provide a travel carriage having improved work properties. [Solution] A travel carriage A on which a welding torch or cutting torch is mounted, and which chucks by suction a workpiece material comprising a magnetic body and travels, wherein the travel carriage A is configured to have: a handle 5 that is disposed on the exterior of a body 1, is secured to the body 1, and supports a load; a magnet 10 that is disposed so as to be capable of separating from or approaching a steel plate within the body 1; an operation member 13 that operates so as to cause the magnet 10 to separate from or approach the steel plate; and a holding member 15 that is disposed facing the magnet 10 while the magnet 10 is separated from the steel plate, the holding member 15 being attracted to the magnet 10 and holding a position of the magnet 10 separated from the steel plate.

Description

Traveling truck

The present invention relates to a traveling carriage mounted with a welding torch or a cutting torch, and more particularly to a traveling carriage capable of improving operability.

A welding torch or cutting torch is mounted on a traveling carriage, and the welding operation or cutting operation on a steel plate is performed by operating the torch along with the traveling of the traveling carriage. Such a traveling carriage needs to exert sufficient traction force in order to tow various hoses and power cords according to the work content at the time of traveling. In addition, it is common for welding work and cutting work using a traveling carriage to frequently change the work position.

The applicant of the present invention is a traveling carriage used for the above work, which exerts a large adsorptive power to a steel plate at the time of welding or cutting work, and can reduce the adsorptive power at the time of non-operation to reduce the burden during transportation. The traveling truck which was made is proposed (for example, refer to patent documents 1). In this traveling carriage, a magnet attached to a bracket is disposed inside the carriage main body, and the bracket is fixed to a lever rotatably provided on a shaft provided inside the carriage main body.

In the above traveling carriage, the magnet can be separated from or approached to the steel plate as the lever rotates in the plane of the traveling direction of the traveling carriage. And when carrying out a welding operation or a cutting operation, when making a magnet approach a steel plate, high traction force is realizable. Further, when moving the traveling carriage to another work site after a series of operations are completed, the magnet can be separated from the steel plate to enlarge the air gap, and the steel plate can be pulled off with a small force.

In the traveling carriage described in Patent Document 1, an L-shaped lever is integrally formed with a magnet, and has a function of rotating the magnet and a handle when moving the traveling carriage. For this reason, by holding and rotating the tip portion of the lever, it is possible to change the adsorption force to the steel plate, and there is an effect that the workability at the time of moving the work place is improved.

Patent No. 5268129 gazette

The steel plates for performing the welding operation or the cutting operation are not necessarily disposed on the substantially horizontal surface, but may be disposed on the substantially vertical surface or the inclined surface. For this reason, when performing the target processing, work of installing the traveling carriage on the steel plate by adjusting the position of the torch with respect to the processing line and performing work of detaching the traveling carriage from the steel plate after welding Become.

For example, when performing butt welding or fillet welding on a steel plate disposed substantially vertically using the traveling carriage described in Patent Document 1, the lever used when moving the traveling carriage operates the operation function of the magnet There is a problem that it is difficult to work at the time of installation of the traveling carriage. Also, when moving the traveling carriage away from the steel plate, when the magnet is separated from the steel plate with the rotation of the lever, the load of the traveling carriage acts on the worker holding the lever all at once. There is a problem that the burden on workers is large.

In addition, since the lever is configured to be pivotable within the plane of the traveling direction of the traveling carriage, if the steel plate to be processed is disposed substantially vertically or if it is a ceiling surface, any projection is There is also a possibility that the lever may be hooked to separate the magnet from the steel plate.

Further, since the magnet and the lever are integrated, when performing maintenance on the magnet, it is necessary to remove the magnet from the handle, which may lead to a complicated operation.

An object of the present invention is to provide a traveling carriage which solves the above-mentioned problems and improves the workability.

In order to solve the above problems, a traveling carriage according to the present invention is a traveling carriage which carries a welding torch or a cutting torch and adsorbs and travels a workpiece made of a magnetic material, and is disposed outside the carriage main body A handle fixed to the bogie main body to support a load, a magnet disposed in the bogie main body so as to be separated or approachable to the workpiece, and the magnet to be separated or approached to the workpiece It has an operation member to be operated, and a holding member which is disposed opposite to the magnet separated from the workpiece, and held by the magnet to hold the separated position of the magnet from the workpiece.

In the traveling carriage described above, the magnet is attached to a mounting member having a locking portion, and the operation member is an engaging portion engaged with the locking portion of the mounting member, and the outside of the bogie main body And a control lever that rotates in a plane that intersects the traveling direction of the carriage body, and the operation is performed by the engagement of the engagement portion of the operation member with the locking portion of the attachment member. The magnet is separated from the workpiece to be opposed to the holding member, or the magnet is separated from the holding member to approach the workpiece, corresponding to the operation direction of the operation lever of the member. Is preferred.

In any of the above traveling carts, the holding member has an adsorption portion which is adsorbed by the magnet when facing the magnet, and is rotatably disposed at a position separated from the magnet The holding member is attracted and rotated as the magnet is separated from the workpiece in response to the operation of the operation lever of the operation member, or the magnet is moved It is preferable to be configured to be turned to release the suction as it approaches the processing material.

In the traveling carriage according to the present invention, the magnet can be separated or approached to the workpiece by the operation member. Then, when the magnet is separated from the workpiece, the holding members disposed facing each other can be adsorbed by the magnet to hold the separated position. Further, by operating the operation member so as to make the magnet approach the workpiece, it is possible to release the adsorption of the holding member by the magnet and to adsorb the workpiece.

In particular, since the handle for supporting the load of the traveling carriage and the operation lever for separating and approaching the magnet from the workpiece are separately configured, the load acts on the worker when the magnet is separated from the workpiece. Can also hold stability.

In the above traveling carriage, the magnet is attached to the mounting member having the locking portion, and the operating member is the engaging portion which engages with the locking portion of the mounting member, and the outside of the carriage main body And a control lever that rotates in a plane intersecting the traveling direction of the main body. Therefore, the magnet can be separated from the work material and can be attracted to the holding member corresponding to the operation direction of the control lever, or the magnet can be separated from the holding member and approached to the work material Can.

In particular, since the control lever is configured to be able to rotate in a plane intersecting the traveling direction of the traveling carriage, even if an obstacle collides with the control lever during traveling, the control lever does not rotate. For this reason, the magnet does not separate from the workpiece during traveling, and stable traveling can be realized.

Furthermore, in the traveling carriage, the holding member has an engaging portion that engages with the engaging portion and the engaging portion of the mounting member, and is rotatably disposed at a position separated from the magnet. For this reason, when the operation lever of the operation member is operated, the adsorption portion is attracted and rotated as the magnet is separated from the workpiece corresponding to the operation direction. Further, as the magnet approaches the workpiece, the holding member pivots to release the attraction of the magnet to the attraction portion. Therefore, in response to the operation of the control lever, the magnet can adsorb the adsorbing portion in the process of separating the magnet from the workpiece and hold the position of the magnet.

It is a perspective view explaining the composition of a traveling truck. It is the top view and sectional drawing of a traveling truck when a magnet approaches a steel plate. It is the top view and sectional drawing of a traveling truck when a magnet separates from a steel plate. It is a schematic diagram explaining the relationship between a magnet and a holding member.

Hereinafter, the configuration of the traveling carriage according to the present invention will be described. The traveling carriage according to the present invention carries a welding torch or a cutting torch and performs welding or cutting on a workpiece (hereinafter referred to as "steel plate") made of a steel plate. In particular, when the magnet configured to be separated or approached to the steel plate is at a position separated from the steel plate, the magnet is attracted from the steel plate by adsorbing the holding member disposed facing the magnet. It is possible to hold the remote position.

Further, in the traveling carriage according to the present invention, since the handle for supporting the load weight of the traveling carriage is provided separately from the operation lever for operating the separation or approach to the steel plate of the magnet, when moving the traveling carriage Use the handle and operate the control lever when installing at the processing position. For this reason, in order to carry out the transport work and the installation work by operating different members, it is possible to make the work stable.

In the present invention, the holding member disposed at the position facing the magnet separated from the steel plate may be fixed at the position facing the magnet, and the magnet faces the magnet in the process of moving with the magnet. Or may be configured to be separated from the magnet.

Next, an embodiment of a traveling carriage according to the present invention will be described with reference to the drawings. First, the traveling carriage A according to the present embodiment is configured as a welding device on which a welding torch B is mounted. However, the traveling carriage according to the present invention can be used as a cutting carriage by mounting a gas cutting torch or a plasma cutting torch instead of the welding torch B.

In the figure, a main body 1 of a traveling carriage A is constituted by a main body case 1a and a bottom plate 1b closing the bottom of the main body case 1a, and a holding member 2 for holding a welding torch B is provided on the upper portion of the main body case 1a. ing. The welding torch B is attached and fixed to the holding member 2 so that the torch B can be mounted.

On the upper surface corresponding to the arrangement position of welding torch B in main body case 1a, a concave portion 1c is formed which is inclined from the side surface on one side to the upper surface, and this concave portion 1c is formed. It is configured such that the inclination angle of B can be increased.

Inside the main body case 1a which comprises the main body 1, the drive device which consists of a motor and a reduction gear which are not shown in figure is arrange | positioned. Further, two

shafts

3a and 3b are disposed in the front and rear direction inside the main body 1, one shaft 3b is connected to the drive device, and the

shafts

3a and 3b are timing belts and chains, etc. not shown. It is connected via a transmission member. Further, rubber wheels 4 are fixed to both ends of the

shafts

3a and 3b, respectively.

Therefore, when the motor is driven, the rotation of the motor is transmitted to one shaft 3b and further transmitted to the other shaft 3a via the transmission member. And the four wheels 4 rotate and the bogie main body 1 travels. At this time, since the wheels 4 are respectively formed of rubber, the contact friction with the steel plate is large, and therefore, it is possible to exert a large traction force.

Further, on the upper surface of the main body 1, a handle 5 used when moving the traveling carriage A is disposed. The handle 5 supports the load of the traveling carriage A, and includes a stand 5a having a suitable length, and a handle 5b disposed in a direction parallel to the traveling direction of the traveling carriage A from the upper end of the stand 5a. Is configured.

Further, guide arms 6 each having a guide roller 6 a are disposed on both side surfaces in the traveling direction of the main body 1.

A magnet 10 is disposed inside the main body 1. The number of magnets 10 is not limited, and it is preferable to appropriately set the number according to the load set for the traveling carriage A and the work content (for example, traveling on a vertical surface, traveling on a ceiling surface, etc.).

In the present embodiment, two magnets 10 are attached to the attachment member 11. However, the number of magnets 10 attached to the mounting member 11 is not limited to two, and may be one. In particular, when attaching one magnet 10 to the attaching member 11, it is necessary to attach the magnet 10 at a position close to a holding member 15 described later.

In the present embodiment, a permanent magnet made of ferrite magnetic steel is used as the magnet 10. However, the present invention is not limited to the magnet, and it is natural that any permanent magnet may be used. Further, the bottom plate 1b attached to the main body case 1a constituting the carriage main body 1 is made of a nonmagnetic material such as aluminum or stainless steel.

The magnet 10 is attached to a plate-like mounting member 11, and an erected piece is formed with an elongated hole 11a serving as a locking portion at one end (end on the shaft 3a side) of the mounting member 11 11b is configured.

The long hole 11a formed in the mounting member 11 is engaged with the shaft 12 serving as the engaging portion of the operation member. In addition, the control lever 13 is configured to be rotatable in a plane parallel to the side surface 1d on the side surface of the main body 1 that intersects the traveling direction of the traveling carriage A and is the side surface 1d side of the shaft 3a. Is arranged.

The operation lever 13 is configured to have an operation portion 13a, a rotation shaft 13b, and an operation portion 13c formed in an L shape, and the operation portion 13a and the operation portion 13c have the rotation shaft 13b as an intersection point. It is formed in an obtuse L-shape. The pivot shaft 13 b is rotatably fitted to a bearing block 13 d disposed in parallel with the traveling direction of the traveling carriage A at a predetermined position of the main body 1. And the axis | shaft 12 is provided in the front-end | tip of the action | operation part 13c.

Therefore, when the operation portion 13a is operated to turn the operation lever 13, the shaft 12 takes the line connecting the rotation axis 13b and the axis 12 as a radius with the rotation axis 13b as the center along with the rotation. Move along the circumference. Then, in the process of moving the shaft 12, the shaft 12 engages with the elongated hole 11 a to move the mounting member 11 up and down, and as a result, the magnet 10 separates or approaches the bottom plate 1 b of the main body 1. That is, it separates or approaches the workpiece.

In particular, since the control lever 13 is configured to turn in a plane intersecting the traveling direction of the traveling carriage A, an obstacle collides with the operating lever 13 when the traveling carriage A is traveling. However, the operation lever 13 is not rotated by the impact. For this reason, while the traveling truck A is traveling, the magnet 10 is separated from the steel plate and the traction is not inhibited.

The holding member 15 is rotatably attached to a shaft 3 a provided in the main body 1. As shown in FIG. 4, the holding member 15 is an outer peripheral surface of the boss portion 15a fitted to the shaft 3a, an adsorption portion 15b formed by projecting from the boss portion 15a, and the boss portion 15a, and the adsorption portion 15b. And a non-adsorbed portion 15c formed continuously, and having an irregular cross section. The adsorbing portion 15 b has a function of being attracted by the magnet 10 and restraining each other when facing the magnet 10. Further, even when the non-adsorbing portion 15c faces the magnet 10, a sufficient air gap is not formed between the non-adsorbing portion 15c and the magnet 10 so that the non-adsorbing portion 15c is not adsorbed.

Since the holding member 15 has an irregular cross section, the center of gravity is at a position displaced from the center of the boss 15a (the center of the shaft 3a) toward the suction portion 15b, and when the holding member 15 is free, the turning force in the direction of arrow b acts It will be done. For this reason, in a state where no magnetic force acts on the adsorbing portion 15b, the adsorbing portion 15b is pivoted (rotated in the direction of the arrow b) so as to be positioned downward as shown by a two-dot chain line in FIG. Then, a portion of the suction portion 15 b contacts the bottom plate 1 b of the main body 1 to maintain a stable posture.

However, in the present embodiment, the magnetic force of the magnet 10 always acts on the adsorption portion 15 b. Therefore, when the magnet 10 ascends, the holding member 15 is rotated in the direction of the arrow a about the shaft 3a by the magnetic force acting on the adsorption portion 15b, and the magnet 10 and the adsorption portion 15b are closest to each other. The areas of the opposing suction parts 15b are maximized and are mutually restrained. Therefore, the magnet 10 and the mounting member 11 hold the raised position.

Next, the mounting member 10 to which the magnet 10 is attached in the traveling carriage A configured as described above is moved up and down by the operation lever 13, and the operation of the holding member 15 accompanying this lifting and lowering will be described.

First, as shown by a two-dot chain line in FIG. 2 and FIG. 4, when the magnet 10 is lowered, it is possible to exert a magnetic force on the steel plate by the magnet 10 to exert a strong traction force. In this state, as shown in FIG. 3, the control lever 13a is pivoted in the direction of the arrow a.

With the rotation of the operation lever 13a in the direction of the arrow a, the shaft 12 is held in a state of being engaged with the long hole 11a of the mounting member 11 and is raised in an arc shape. As a result, the end of the mounting member 11 on the side of the shaft 3a rises, and the magnet 10 also rises accordingly. At this time, the magnetic force of the magnet 10 acts on the suction portion 15 b of the holding member 15, whereby the holding member 15 rotates about the shaft 3 a in the direction of arrow a, and the suction portion 15 b faces the magnet 10. They are tied together. Therefore. The mounting member 11 can hold the posture separated from the bottom plate 1 b.

With the magnet 10 raised as described above, the worker can grip the handle 5 and transport it to a desired position. When the magnet 10 is conveyed to a target position and placed on the steel plate, the magnetic force of the magnet 10 does not largely act on the steel plate, so that setting and adjustment of the position can be easily advanced. .

When the traveling carriage A is moved after completion of the target processing, the control lever 13 rotated in the direction of arrow a as shown in FIG. 2 is rotated in the direction of arrow b. Along with this rotation, the long hole 11a and the mounting member 11 to which the shaft 12 descends and engages in an arc shape descend and the holding member 15 descends in the direction of the arrow b centering on the shaft 3a by the magnetic force acting on the adsorption portion 15b. Rotate. When the magnet 10 comes into contact with the bottom plate 1b and stops moving downward, the holding member 15 also makes contact with the bottom plate 1b when the magnet 10 comes into contact with the bottom plate 1b and stops moving downward. Hold that position at.

As described above, the position of the magnet 10 separated from the steel plate can be held, and the position of the magnet 10 separated from the steel plate can be lowered from the held state to approach the steel plate.

In this embodiment, the shaft 12 of the operation lever 13 is engaged with the long hole 11a of the attachment member 11 to transmit the rotation of the operation lever 13 to the attachment member 11. Therefore, maintenance of the attachment member 11 or the magnet 10 In order to perform the above, the engagement between the elongated hole 11a and the shaft 12 may be released. Therefore, maintenance work can be easily performed.

In particular, the end opposite to the end where the long hole 11a of the mounting member 11 is formed (end on the side of the shaft 3b) is locked to the corner of a recess (not shown) formed inside the main body 1 and inclined. In this case, the assembly work of the traveling carriage A can be easily performed.

The traveling carriage A according to the present invention is a traveling carriage which is mounted on a steel plate and pulls a hose or cords to perform a target operation, and the processing site is used for a vertical surface or a ceiling surface. It is possible.

A Traveling truck B Welding torch 1 Body

1a Body case

1b Bottom plate 2 Holding member 1c

Recess

3a, 3b Axis 4 Wheel 5 Handle 5a Stand 5b Handle 6a Guide roller 6 Guide arm 10 Magnet 11 Mounting member 11a Long hole 11b Standing piece 1d Side surface 13 Operating lever

13a Operating part

13b Rotary shaft

13c Working part

13d Bearing block 12 Axis 15 Holding member

15a Boss part

15b Suction part 15c Non-suction part

Claims

A traveling carriage which carries a welding torch or a cutting torch and adsorbs and travels a workpiece made of a magnetic material,
A handle disposed outside the carriage body and fixed to the carriage body to support a load;
A magnet disposed in the interior of the bogie main body so as to be separated or approachable to the workpiece;
An operation member for operating the magnet to move away from or approach the workpiece;
A holding member disposed opposite to the magnet separated from the workpiece, and held by the magnet to hold the separated position of the magnet from the workpiece;
A traveling carriage characterized by having:
The magnet is attached to a mounting member having a locking portion,
The operation member has an engagement portion engaged with the locking portion of the attachment member, and an operation lever which is external to the bogie main body and rotates in a plane intersecting the traveling direction of the bogie main body. Yes,
By the engagement of the engaging portion of the operation member with the locking portion of the attachment member, the magnet is separated from the workpiece and opposed to the holding member corresponding to the operation direction of the operation lever of the operation member. The traveling carriage according to claim 1, characterized in that it is configured to move the magnet away from the holding member so as to approach the workpiece.
The holding member has an adsorbing portion which is attracted to the magnet when facing the magnet, and is rotatably disposed at a position separated from the magnet.
In the holding member, the suction portion of the holding member is attracted and rotated as the magnet separates from the workpiece in response to the operation of the operation lever of the operation member, or the magnet is the workpiece The traveling carriage according to claim 1 or 2, wherein it is configured to be pivoted to release the adsorption as it approaches the vehicle.