KR100395577B1 - Welding jig for diamond saw - Google Patents

Abstract

The present invention relates to a welding jig (1) fixed to weld the segment 11 and the shank 12 of the diamond saw 10 for cutting concrete or stone, asphalt, tiles,

The welding jig 1 is provided with a nonmagnetic material 102 between at least one circular magnetic material 101 provided with a downward magnetic force to form a pole at the boundary between the magnetic material 101 and the nonmagnetic material 102. At least one magnetic force generating unit 110 for stably fixing the segment 11 and the shank 12 with a strong magnetic force obtained by forming, and a coil unit 120 for generating a magnetic force in the magnetic force generating unit 110 It is configured to include a circular jig body 100 which is provided at a portion or more, and rotates at a predetermined speed by the driving means 140 connected to the central axis 130 provided at the lower end.

According to the present invention, it is possible to stably fix the shank and the segment during welding of the diamond saw so as to prevent the mounting failure of the segment, and at the same time, the production of the diamond saw of various specifications with one jig by the magnetic force generation part provided It has the effect of supplying a possible jig.

Description

Welding jig for diamond saw blade {WELDING JIG FOR DIAMOND SAW}

The present invention relates to a welding jig for mounting a segment and a shank of a diamond saw for cutting stone or concrete, asphalt or tile, wood, refractory material, and more particularly, at least one circular magnetic material based on a central axis. And a magnetic force generating portion in which a nonmagnetic material is press-fitted between the magnetic bodies, and at least one coil portion based on the center is provided below the magnetic force generating portion to maximize the magnetic force of the magnetic generating portion. Diamond jig welding jig for stabilizing fixing of the segment and shank to be mounted and at the same time the disk of the clamping device is compressed on the upper part of the segment where welding is performed, thereby preventing the deformation of the outside of the segment due to the welding heat. Is about

In general, a jig for welding the shank 12 and the segment 11 of the diamond saw 10 to cut stone, concrete, asphalt or tile, wood, refractory, etc. has been used in various ways.

For example, as shown in FIG. 1A, the bolt B is fastened to the center of the circular jig main body JM, and the edge 12a of the shank 12 is positioned below the bolt B from the upper side. The first clamp (C1) is provided to compress, and the jig is provided with a plurality of second clamp (C2) for fastening the upper part of the plurality of segments (11) to be mounted on the outer periphery also to maintain the fixed state by bolts It has been used.

However, the jig as described above has a problem in that, when irradiating a laser beam formed within a radius of 0.1 to 0.2 mm, a defect that floats without welding is generated when a gap is generated.

In addition, by tightening the clamps on the upper part of the plurality of segments depending on the attraction force, there is a problem that leads to enormous time loss, that is, waste of Man Hour (Man Hour).

In order to solve this problem, as shown in Figure 1b, Korean Patent Registration No. 194-0001380 "laser welding jig for diamond saw blade" has been disclosed, the contents are as follows.

The first electromagnet M1 supporting the lower part of the segment 11 and applying downward magnetic force to the segment 11, and the second electromagnet M2 supporting the lower part of the shank 12 and applying the downward magnetic force to the shank 12. A magnetic force generating portion M, a magnet coil portion MC for forming magnetism in the magnetic force generating portion M, a magnet supporting portion MS for supporting the magnetic force generating portion, and the magnet supporting portion MS; It is the structure which consists of a magnet coil support frame MSF which supports.

In addition, the first electromagnet M1 and the second electromagnet M2 are provided at any number of positions of the segment 11 and the lower portion of the shank 12.

However, the welding jig as described above is a problem in that the mounting of the segment occurs when the segment is pulled downward to the electrode portion where the greatest magnetic force is generated at the portion indicated by "a" and the welding is performed with the outer side excited. There was.

In addition, as described above, in order to correct the wrong segment, the welding is performed again one or two times in the opposite direction, and thus there is a problem in that the production time due to the welding operation is excessively input.

Also, due to the above-mentioned problems, it is impossible to perform C2O welding or Argon welding, which generate a lot of heat during welding. Moreover, even if the work is performed, the mounting of the segment is performed due to the heat deformation generated by the temperature of the welding part. There was a problem that a defect occurred.

In addition, there is a problem that the magnetic force is reduced by the magnetic support portion provided with a nonmagnetic material between the first and second electromagnets and the coil.

In addition, by providing the first electromagnet and the second electromagnet at an arbitrary position according to the specifications of the saw blade to be welded, there is a problem that the segment falls during cutting under uneven welding conditions and loses trust from users.

In addition, since the work proceeds depending on the sense of the skilled worker there is a problem that the productivity and the quality of the product is inconsistent and the productivity is lowered.

The present invention has been made to solve the above problems, an object of the present invention is to provide a clamping device that can be in close contact with the surface of the jig when the segment is provided on the electrode portion that generates the greatest magnetic force is poor mounting of the segment To prevent.

In addition, another object of the present invention is to improve the productivity by completing the welding only once as described above.

In addition, another object of the present invention is to enable the mounting of the segment by various welding methods, such as C2O welding, Argon welding, etc. by means of automatically clamping means, the segment by a magnetic material provided in a plurality of circular It is possible to produce a diamond saw of various models irrespective of the quantity and the location of the segment is provided to supply a multi-purpose welding jig.

In addition, another object of the present invention is to inject a nonmagnetic material between the circular magnetic material provided with at least one, and to provide a coil directly below, to maximize the magnetic force generation.

In addition, another object of the present invention is to provide a large number of circular magnetic bodies in the jig body as described above to be welded over the full size of the diamond saw blade, and to maximize the mounting force of the segment with the maximum magnetic force of the semi-permanent life To supply the diamond saw blade.

In addition, another object of the present invention is to provide a high quality diamond saw with a single welding jig can be equipped with a consistent segment of all the standard, all products diamond saw.

1a and 1b is a cross-sectional view showing the configuration of a conventional welding jig for diamond saw blades,

2 is a cross-sectional view showing in detail the configuration of the welding jig for diamond saw blade according to the present invention;

Figure 3 is a perspective view showing a state of use welded with the shank and segment of the diamond saw blade on top of the welding jig of the present invention.

* Explanation of symbols for main parts of the drawings

1; diamond saw welding jig 10; Diamond saw

11; segment 12; shank

100; jig body 101; magnetic body

102; nonmagnetic material 110; magnetic force generating portion

120; coil part 130; center shaft

140; drive means 200; clamp device

201; light moving part 202; horizontal moving part

210; disc 220; rotating shaft

230; bearing housing 240; cylinder

250; Slide bracket 260; Inclined rail

270; horizontal rail 271; handle

272; screw 272a; screw bracket

The present invention is a welding jig for mounting a segment and shank of diamond saw for cutting concrete or stone, asphalt, tiles,

The welding jig is provided with a nonmagnetic material between at least one circular magnetic material provided to generate a downward magnetic force to stably fix the segment and the shank with a strong magnetic force obtained by forming a pole at the boundary between the magnetic material and the nonmagnetic material. And a circular jig main body having at least one coil portion for generating magnetic force and a circular jig body rotating at a predetermined speed by a driving means connected to a central axis provided at a lower end thereof. do.

Hereinafter, with reference to the accompanying drawings illustrating a preferred embodiment of the present invention in detail.

Figure 2 is a cross-sectional view illustrating in detail the configuration of the welding jig for diamond saw blades of the present invention, Figure 3 shows a state of use welded with the shank and segment of the diamond saw blade on top of the welding jig of the present invention. (Hereinafter, the same configurations as in the prior art will be described with the same names and symbols.)

Before describing the configuration of the welding jig for diamond saw blade (hereinafter, referred to as "welding jig") 1 in detail, magnetic force is generated by the magnetic force generating unit 110 and the coil unit 120 applied to the present invention. Briefly explain the principle.

The magnetic force generating unit 110 of the present invention is a kind of a general electromagnet, which is magnetized by an electric current and returns to its original state without being magnetized when the electric current is interrupted.

The simplest of the electromagnets is a solenoid made by winding a coil around a cylindrical iron core having a high permeability. A coil through which an electric current passes without an iron core has a magnetic field equivalent to that of the original magnet. Iron is magnetized strongly, and the magnetic field is applied to it, making it a stronger magnet.

Electromagnets have a strong magnetic field that is difficult to obtain with permanent magnets, and by setting a current, the strength of the magnetic field can be changed.

As shown in FIG. 2, the structure of the welding jig 1 of this invention is demonstrated in detail.

As shown, the welding jig 1 of the present invention is provided with a jig body 100 formed in a circular shape, the lower chain of the jig main body 100 is a conventional chain gear 131 coupled to the central axis 130 ) Is provided.

The chain gear 131 is to be rotated at a low speed by the drive means 140 provided on one side, the rotation speed of the drive means 140 in the method for welding the diamond saw 10 provided on the top Therefore, the manufacturing technology of the art can be easily adjusted as much. This is because the rotational speed needs to be adjusted according to welding conditions such as laser welding, argon welding, or Co2 welding.

A groove 100a is formed on the jig main body 100 to form a coil part 120 provided with a coil to generate magnetic force in the magnetic force generating unit 110 to be described later. 120, the principle of the electromagnet described above has been described.

In addition, the upper side of the jig body 100 is provided with a magnetic force generating unit 110, the magnetic force generating unit 110 is a magnetic material 101 made of a known pure iron (純鐵) and a nonmagnetic material 102 made of brass ) Are alternately provided, and as shown in FIG. 3, a plurality of magnetic bodies 101 and nonmagnetic bodies 102 are alternately arranged in a circumferential form, and magnetic force is applied by the coil unit 120. Will be generated.

That is, as shown in detail on one side of Figure 2, the magnetic body 101 and the nonmagnetic material 102 is formed in close contact between the magnetic pole (A) is generated to generate a strong magnetic force.

In addition, the shank 12 of the diamond saw 10 applied to the welding jig 1 of the present invention generally uses a thin plate, which is generally thin, of a thin plate and a thick plate. The magnetic pole A as described above is preferably formed at a position proximate to the mounting portion 10a on which the and segments 11 are mounted. The reason for this is that in the case of the thin plate, when the magnetic pole A is formed far from the mounting portion, the magnetic force is weakly generated so as to prevent welding deformation in which the shank 12 of the mounting portion 10a is upward due to the welding heat. Because.

In addition, the reason why the magnetic body 101 and the non-magnetic material 102 are formed in close contact with each other in the magnetic force generating unit 110 is that the welding of the diamond saw 10 of all standards by one welding jig 1. Because this is to make it possible.

That is, as described above, the magnetic force generating unit 110 has a plurality of magnetic bodies 101 and nonmagnetic bodies 102 formed in close contact with each other to enable mounting over a general diamond saw 10 standard.

In addition, the welding jig 1 of the present invention includes a clamp device 200 on one side of the jig main body 100 in addition to the strong magnet as described above, and a plurality of segments mounted on the outer periphery of the shank 12. The fixed state of (11) was kept to be stable.

That is, as shown in the figure, argon welding, or CO2 welding torch (Torch) is ejected at a high pressure to the argon gas or the sea gas to the segment 11 during welding and at the same time the welding wire (Welding Wire) is Segment 11 is in contact with the mounting portion 10a of the segment 11 and the shank 12 to generate a current, and thus, the segment 11 that is relatively in contact even when fixed to the magnetic force generating portion 110 of the welding jig 1. Since the contact area of is small, it is possible to prevent movement by the ejection pressure of the gas and the welding wire as described above, so that perfect mounting is achieved.

The clamp device 200 of the present invention is provided with a disk 210 having an inclination of a predetermined angle in cross section to compress the upper portion of the above-described segment 11, thereby preventing flow, and the welding jig 1 of the present invention. Since the jig body 100 of the rotation is a rotating body that is welded to rotate the disk 210 is also followed by the rotational force of the jig body 100.

That is, when welding is performed by the welding torch (WT) fixed to a predetermined portion, the diamond saw 10 provided on the top of the jig body 100 is rotated by the rotation of the jig body 100 Welding is performed to the mounting part 10a.

At this time, the segment 11 is mounted while preventing the flow by welding to the segment 11 in the compressed state by the disk 210 that is rotated on one side of the welding torch (WT) only when welded.

Looking at the configuration of the clamp device 200, the clamp device 200 is composed of the inclined moving portion 201, the horizontal moving portion 202, the light moving portion 201 is the lower center portion of the disk 210 A rotating shaft 220 is provided, and the rotating shaft 220 is disposed inside the bearing housing 230 so as to rotate, by the rotational force of the jig body 100 rotated by a separate driving means 140. To follow.

In addition, a rear side of the bearing housing 230 is provided with a normal cylinder 240, as shown in detail on one side, the inclined slope so that the disk 210 can compress the upper side of the segment (11). Therefore, it operates downward at low speed.

In addition, the lower side of the bearing housing 230 is mounted with a slide bracket 250, so as to slide in the upper portion of the inclined rail 260 that is inclined when moving forward and backward by the cylinder 240, The inclined moving part 201 is configured so that the disk 210 can easily press and clamp the upper side of the segment 11.

The cylinder 240 is a manufacturing technology in the art, it is possible to easily use the user or the air cylinder or hydraulic cylinder as much as possible.

The lower side of the inclined moving part 201 is provided with a horizontal moving part 202 to select the correct position of the disk 210, the horizontal moving part 202 along the horizontal rail 270 It moves horizontally before and after the disk 210 is adjustable so as to apply a compressive force exactly on top of the segment (11).

The horizontal movement unit 202 is moved by the handle 271 provided at the rear, so that the disk 210 for sliding the inclined rail 260 at a low speed is provided at the correct position so as to be able to move forward and backward. A screw bracket 272a is provided below the horizontal moving part 202 so as to move along a spiral of a conventional screw 272.

The above-described operation will be described in detail with reference to FIG. 3.

First, the operator operating the welding jig 1 of the present invention first generates a magnetic force in the magnetic force generating unit 110 provided in the jig main body 100 and the shank 12 and the first by the magnetic force (磁力) Secure the segment (11).

When the primary fixing by the magnetic force is completed to operate the cylinder 240 to move the disk 210 downward along the inclined rail 260, the cylinder 240 preferably operates at a low speed. For this reason, when the disk 210 is moved by the cylinder 240, the disk 211 is moved horizontally by turning the handle 271 provided on the lower horizontal moving part 202, thereby moving downward at a low speed. This is because the disk 210 can be adjusted to exert a compressive force on the top of the segment 11 exactly.

In addition, it is possible to adjust the cylinder 240 to operate at a low speed by a conventional speed controller.

As described above, adjusting the mounting position by simultaneously operating the inclined moving part 201 and the horizontal moving part 202 is applied only to the saw blade to be welded for the first time, the horizontal moving part 202 to weld another saw blade It is to be kept in a fixed state, only the inclined moving unit 201 is to operate up and down.

As described above, when the fixing of the segment 11 is completed by the disk 210, the welding jig 1 of the present invention is operated, that is, rotates as a whole. First, the welding jig 1 is driven on one side of the lower part. The disk 210 is rotated by means (not shown) and thus compresses the upper part of the segment 11.

At this time, the welding torch (WT) provided at a position coinciding with the center line of the disk 210 starts welding and dissolves and mounts the mounting portion 10a of the segment 11 and the shank 12.

The type of welding refers to all means that can be continuously welded, such as C2O welding, argon welding, laser welding, which are known welding methods, and the mounting of the segment 11 and the shank 12 according to the present invention. The finished diamond saw 10 is a bead (Bead) is formed on the front according to the product required by the user, the back bead (Back Bead) is formed on the back to be mounted by the CIO welding Ideally, when manufacturing a saw having a weld bead on both sides, argon welding may be performed to form beautiful beads.

In addition, in order to mount the segment 11 and the shank 12 without forming a welding bead, it is preferable to perform laser welding.

That is, the laser of the above-mentioned laser welding has the characteristics of straightness and indirectness, and when the light is collected using a condenser lens, it becomes a small point, and the energy of very high density is obtained at the focus.

When this light comes into contact with the material, the material absorbs energy and the temperature rises locally. The material melts and is mounted by this thermal action.

The laser mounting method does not require a separate molten material such as a welding rod between two base materials to be mounted, so there is an advantage of having a constant mounting surface without slag or welding defects according to normal welding. Because.

In addition, the reason why brass is used for the nonmagnetic material 102 of the present invention is that the laser beam is transmitted and is not melted and is reflected.

As described above, the welding jig 1 of the present invention enables the welding of various methods to popularize the diamond saw 10 that meets the needs of the user.

The present invention is not limited to the above-mentioned specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such modifications are within the scope of the claims of the present invention.

As described above, according to the present invention, there is provided an automatic clamping means that can be in close contact with the surface of the jig when welding the segment provided on the electrode portion generating the greatest magnetic force to prevent the mounting failure of the segment.

In addition, the welding is completed only once by the automatic welding jig as described above, thereby improving the productivity.

In addition, the segment can be mounted by various welding methods such as C2O2 welding or Argon welding by means of automatically clamping means, and diamond saws of various sizes regardless of the number and location of the segments It has the effect of enabling production.

In addition, by injecting a non-magnetic material between at least one circular magnetic material provided, and by providing a coil directly below, there is an effect of maximizing the magnetic force generation.

In addition, by having at least one circular magnetic material can be welded over the entire size of the diamond saw blade, and has the effect of supplying the diamond saw blade of semi-permanent life by excellent mounting of the segment with the maximum magnetic force.

In addition, a single welding jig enables consistent segment mounting of all standard and all-product diamond saws, which has the effect of supplying a high-quality diamond saw.

Claims (6)

In the welding jig 1 for fixing the segment 11 and the shank 12 of the diamond saw 10 for cutting concrete or stone, asphalt, tiles, The welding jig 1, At least one circular magnetic body 101 provided with at least one to generate a downward magnetic force, and the nonmagnetic body 102 is provided to be alternated between the magnetic body 101, the magnetic body 101 and the nonmagnetic body 102 of A magnetic force generating unit 110 for stably fixing the segment 11 and the shank 12 with a strong magnetic force obtained by forming a pole at a boundary; It is disposed below the magnetic force generating unit 110, at least one coil unit 120 for generating a magnetic force in the magnetic force generating unit 110 is provided, the drive connected to the central axis 130 provided at the lower end Welding jig for a diamond saw blade, characterized in that it comprises a circular jig main body 100 that rotates at a predetermined speed by means (140). The method of claim 1, One side of the jig main body 100 is provided with a disk-shaped disk 210 that compresses the upper portion of the segment 11 which is disposed and welded to the magnetic force generating portion and rotates according to the rotation direction of the jig main body 100. The bearing housing 230 is coupled to the lower rotating shaft 220 of the disc 210 to facilitate rotation, and the bearing housing 230 moves forward and backward from the top of the inclined rail 260. An inclined moving part 201 formed of a cylinder 240 provided at the rear of the housing 230; In order to accurately position the disk 210 downwardly adjusted by the cylinder 240, the handle 271 provided at the rear end is rotated so that the inclined movement unit 201 is moved back and forth by the spiral of the screw 272. Diamond jig welding blade for jig characterized in that it further comprises a clamp device consisting of a horizontal moving unit 202 is provided with a screw bracket (272a). The method of claim 2, The clamp device 200 is provided with a disk-shaped disk 210 to compress the upper portion of the segment 11, which has a smaller contact area to contact the magnetic force generating portion 110 than the shank 12, thereby stably fixing during welding Welding jig for diamond saw blade, characterized in that to be. The method of claim 1, The magnetic force generating unit 110 is a diamond saw blade welding jig, characterized in that the nonmagnetic material 102 is in close contact between the magnetic body 101 provided in at least one circular shape to maximize the magnetic force. The method of claim 1, The jig main body 100 is a diamond saw blade welding jig, characterized in that the welding of the diamond saw 10 of all standards by a plurality of circular magnetic force generating unit 110 is provided. The method of claim 1, The non-magnetic material 102 is a diamond saw blade welding jig, characterized in that the laser beam is not transmitted, reflected and not melted, does not melt by the heat of welding of argon or C2O (Co2) welding.