KR100399346B1 - Auto carriage for sandblasting - Google Patents

Abstract

Sandblasting automatic carriage of the present invention, a plurality of driving each installed on both sides of the body 11 is connected to the body 11 and at least one step motor 12 is mounted, the rotation shaft of the step motor 12 The magnetic trackless 15 and the body 11, which are disposed on both sides of the wheel 14 and the body 11, and are tightened on the outer circumferential surfaces of the drive wheels 14 installed on each side of the body 11, respectively. It includes a sandball entry and exit device 17 is installed penetrating through the injection and discharge of the working sandball, the surface is smoothly polished by sandblasting while moving in close contact with the surface of the workpiece.

Description

Auto carriage for sandblasting {Auto carriage for sandblasting}

The present invention relates to an automatic carriage for sand blasting, and more particularly, to an automatic carriage for sand blasting, in which the slug remaining on the surface of the welded workpiece can be removed while remote welding. It is about.

There are lapping, honing, sandblasting, and buffing methods to polish the surface of the workpiece, among which sandblasting is fine sand (hereinafter referred to as 'sandball'). It is used to remove sand from the impeller wheel, which rotates at high speed, or to project the sand to the surface of the workpiece. In the past, it is generally used for descaling castings, but recently, it is widely used for surface treatment of various materials and finishing of various parts. .

However, such sandblasting is limited to the place where the worker can reach, so when the work space is high, the worker lifts the sandblasting device and rides the high ladder. There are problems such as being dangerous and having to do a lot of work. In addition, it is impossible to apply in places where the worker can not enter, such as a narrow space, there is a disadvantage that the operator has to finish the trimming in the place where the assembly work cannot be completed after welding is completed, such as a ship.

Accordingly, the present invention has been made to solve the above problems, the operator can easily and safely smooth the surface of the workpiece by a simple operation by remote control, automatic carriage for sand blasting that can prevent the risk of safety accidents The purpose is to provide.

1 is a simplified perspective view of an automatic carriage for sandblasting of the present invention,

2 is a simplified side view of FIG. 1.

<Description of the symbols for the main parts of the drawings>

11 ----- body, 12 ----- step motor,

14 ----- drive wheel, 15 ----- caterpillar,

17 ----- sandball dispenser, 18 ----- sandball inlet,

19 ----- sandball outlet, 22 ----- holding member,

23 ----- seating member, 24 ----- seating hole.

The present invention as described above, the body is equipped with at least one step motor, a plurality of driving wheels respectively installed on both sides of the body while being connected to the rotating shaft of the step motor, the driving is provided on each side of the body, respectively disposed on both sides of the body It comprises a magnetic endless track that is tightly caught on the outer peripheral surface of the wheels, and a sandball entry and exit device that is installed through the body and the work sandball is injected / discharged.

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

Figure 1 is a simplified perspective view of the automatic carriage for sandblasting of the present invention, Figure 2 is a simplified side view of Figure 1 shows the outline of the sandball entry and exit device 17 and the fixing member 22 mounted in the body 11 for convenience. It was. Referring to these drawings, the automatic carriage for sandblasting of the present invention is a body 11 equipped with at least one step motor 12, and a plurality of driving wheels 14 installed on both sides of the body 11, respectively. It includes a crawler 15 is tightly caught on the outer circumferential surface of the drive wheels 14, and a sandball entry and exit device 17 is injected / discharged working sand ball. The body 11 is preferably manufactured using a non-metallic material, which is a metallic material in which most of the workpieces react with magnetism, and the caterpillar 15 of the present invention is a magnetic material capable of reacting with the metallic workpiece. This is because it is made of a rich material. The body 11 is equipped with at least one step motor 12, one of the step motor 12 shown in Figure 1 is used for front and rear movement control and the other is used for left and right movement control bar, four directions ( If more than before, after, left, right) control is required, an additional step motor 12 is mounted and used. The drive wheels 14 are mounted on both sides of the body 11, respectively, at which time the surfaces of the drive wheel 14 and the caterpillar 15 so that the body 11 does not touch the surface of the workpiece. The contact 16 is located below the bottom of the body 11. On the other hand, the rotating shaft of the step motor 12 is to be connected to the rotating shaft of the drive wheel 14, the drive wheel 14 is rotated in conjunction with the rotation of the step motor 12.

An endless track 15 is provided in the drive wheel 14 in tension, and the endless track 15 is manufactured using a magnetic material as described above. In addition, the body 11 is provided with a sand ball inlet and outlet 17 having a sand ball inlet 18 and a sand ball outlet 19 through which the working sand ball is injected / discharged while penetrating the body 11. The lower side of the sandball inlet / outlet device 17 communicates with the work surface below the body 11, so that the sandball injected from the sandball inlet 18 comes into direct contact with the work surface. Although not shown, the step motor 12 is connected to a power connection cable for remote control, and the sandball inlet 18 and the sandball outlet 19 are flexible tubes for injecting and discharging the sandball, respectively. (flextible tube) is connected.

To briefly describe the operation of the sandblasting automatic carriage according to the present invention, first, the driving wheel is interlocked by positioning the automatic carriage on the surface of the workpiece to be worked, and applying a current to the step motor 12 to rotate the motor shaft ( 14) to rotate. At this time, when the automatic carriage is moved while injecting fine sand balls having a diameter of 1 mm or less into the sand ball inlet 18 at high speed, the injected sand balls move the body 11 of the automatic carriage via the sand ball inlet 18. It penetrates and hits the surface of the workpiece, rebounds and is discharged through the flexible tube of the sand ball outlet 19 equipped with a vacuum pump (not shown). The arrow of Figure 2 shows the movement of the sand ball, it is preferable to form a sand ball entry and exit device 17 so that the movement of the sand ball can be made smoothly, the caterpillar (15) is magnetic because it is erect vertically You can work in the state or hanging from the ceiling. Sandball entry and exit device 17 is not limited to the shape shown can be variously modified so that the injected sandball easily exits through the sandball outlet 19 after hitting the surface of the workpiece.

On the other hand, the present invention can be made by further mounting at least one magnetic fixing member 22 on either side of the body 11, in the illustrated embodiment two fixing members 22 are the body 11 It is fitted in the mounting hole 24 of the mounting member 23 mounted on one side of the. The fixing member 22 and the seating hole 24 may be coupled to each other by acting as female and male threads, but may be coupled to each other by a slight interference fit and then naturally adhered to the surface of the workpiece made of metal by magnetic force. Accordingly, the body 11 can be finished while being in close contact with the surface of the workpiece by a stronger magnetic force. 25 which is shown in the figures but not described represents the surface of the workpiece.

The present invention described above is not limited to the above embodiments, but can be implemented through various applications and modifications within the scope of the present invention disclosed by the appended claims.

The present invention as described above, it is possible to easily and safely trim the surface of the workpiece after welding work with a fine sand ball injected at high speed while moving by a remote control, it is possible to prevent a safety accident.

Claims (2)

A body 11 having at least one step motor 12 mounted thereon, and a plurality of driving wheels 14 and the body 11 installed at both sides of the body 11 while being connected to the rotating shaft of the step motor 12. Magnetically caterpillar 15, which is disposed on both sides of the body and is tightened on the outer circumferential surface of the drive wheels 14 installed on each side of the body 11, and is installed through the body 11 and the working sand Sandblasting automatic carriage made of a sandball inlet and outlet device 17 is the ball is injected / discharged. 2. The automatic carriage for sandblasting according to claim 1, wherein at least one magnetic fixing member (22) is mounted on the body (11).