CN211465172U - Positioning mechanism for laser pipe welding machine - Google Patents

Abstract

The utility model relates to a laser welding technical field especially relates to a positioning mechanism for laser welded tube mill. It includes frame (1), be equipped with through-hole (13) on frame (1), just through-hole (13) one side is equipped with first positioner, through-hole (13) opposite side is equipped with second positioner, just still be equipped with welding seam guiding device between first positioner and the second positioner, just second positioner is five roller positioning mechanism. The positioning mechanism has a good positioning effect.

Description

Positioning mechanism for laser pipe welding machine

Technical Field

The utility model relates to a laser welding technical field especially relates to a positioning mechanism for laser welded tube mill.

Background

With the continuous promotion of the light weight work of the sedan in China, the demand of high-strength welded pipes for the torsion beam of the sedan increases year by year, and the high-frequency resistance welding method in the prior art cannot meet the quality requirement and the quality reliability requirement due to the high content of carbon elements and alloy elements of the high-strength welded pipes.

In the prior art, a laser pipe welding machine is used for welding high-strength pipes, but a positioning mechanism in the laser pipe welding machine in the prior art is simple, the positioning effect is poor, and the welding effect is poor.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: the positioning mechanism for the laser pipe welding machine is good in positioning effect, and the laser pipe welding machine adopting the positioning mechanism is good in welding effect.

The utility model adopts the technical proposal that: the utility model provides a positioning mechanism for laser pipe welding machine, includes the frame, be equipped with the through-hole in the frame, just through-hole one side is equipped with first positioner, the through-hole opposite side is equipped with second positioner, just still be equipped with welding seam guiding device between first positioner and the second positioner, just second positioner is five roller positioning mechanism.

Preferably, the five-roller positioning mechanism comprises a lower supporting roller for supporting the lower part of the pipe, a left side pressing roller for limiting the left side of the pipe, a right side pressing roller for limiting the right side of the pipe, a first upper pressing roller for abutting against the left side of the upper part of the pipe and a second upper pressing roller for abutting against the right side of the upper part of the pipe, the first upper pressing roller and the second upper pressing roller are symmetrical along a vertical line, and the first upper pressing roller and the second upper pressing roller are 30-45 degrees relative to the vertical line.

Preferably, the first positioning device comprises a lower support member, a left support member and a right support member, and rollers which are convenient for the movement of the pipe are arranged on the lower support member, the left support member and the right support member.

Preferably, the welding seam guiding device comprises a guide pipe extending into the pipe, a seam guide piece arranged on the upper part of the guide pipe and used for being matched with the welding seam of the pipe, and an upper clamping device arranged on the frame and used for clamping the seam guide piece.

Preferably, the thickness of the seam guide piece at the end close to the welding position is smaller than that at the end far away from the welding position.

Preferably, the guide pipe is internally provided with two channels, namely a first channel for introducing cooling water and a second channel for introducing protective gas, and the upper part of the front end of the guide pipe is provided with an air outlet which is communicated with the second channel.

Compared with the prior art in the structure more than adopting, the utility model has the advantages of it is following: the welding device is characterized in that the welding device is firstly prepositioned through the first positioning mechanism, then guided through the welding seam guide mechanism, and finally welded after being positioned through the second positioning mechanism, so that the positioning accuracy is higher, and the welding effect is better.

And adopt five roller positioning mechanism to carry out the second location, location accuracy is higher like this, moreover can be fine with the cooperation of welding seam guiding mechanism, and then make welding effect better.

By adopting the first positioning device with the structure, a better pre-positioning function is achieved, and the pipe can move on the first positioning device conveniently.

The guiding pipe passively stretches into the pipe for positioning, then passes through the welding seam through the guiding seam piece, and then positions the welding seam, conveniently welds, and makes the welding effect better like this.

Set up the cooling water that leads to of first passageway in the guide tube, can reduce the temperature of welding back tubular product like this, set up the second passageway and lead to the protection gas, can protect the tubular product in the welding like this, can be so that the welding effect is better.

Drawings

Fig. 1 is a schematic structural diagram of a viewing angle of a positioning mechanism for a laser pipe welding machine according to the present invention.

Fig. 2 is a schematic structural diagram of another view angle of the positioning mechanism for the laser pipe welding machine according to the present invention.

As shown in the figure: 1. a frame; 2. a lower carrier roller; 3. a left press roll; 4. a right press roll; 5. a first upper press roll; 6. a second upper press roll; 7. a lower support; 8. a left support member; 9. a right support member; 10. a guide tube; 11. a seam guide sheet; 12. an upper clamping device; 13. and a through hole.

Detailed Description

The present invention will be further described below with reference to specific embodiments, but the present invention is not limited to the following specific embodiments.

A positioning mechanism for a laser pipe welding machine is mainly used for receiving a pipe conveyed by a feeding mechanism and then positioning the pipe, and is convenient for welding of a pipe welding mechanism, and comprises a rack 1, wherein a through hole 13 is formed in the rack 1, the through hole 13 is mainly used for the pipe to pass through, and the through hole 13 is large, so that the positioning mechanism can be adjusted according to the size of the pipe, a first positioning device is arranged on one side of the through hole 13, a second positioning device is arranged on the other side of the through hole 13, and a welding seam guide device is arranged between the first positioning device and the second positioning device; wherein:

the first positioning device is arranged on one side of the rack 1 and used for receiving the pipe conveyed from the feeding mechanism, and mainly comprises a lower limiting device and a side limiting device, wherein the lower limiting device is a lower supporting piece 7 and can adjust the vertical height, the side limiting device is a left supporting piece 8 and a right supporting piece 9 and can adjust the horizontal position, and rollers are arranged on the left supporting piece 8 and the right supporting piece 9 of the lower supporting piece 7, so that the pipe can conveniently slide;

second positioner, including five roller positioning mechanism, mainly be snub pulley 2, left side compression roller 3, right side compression roller 4, compression roller 6 is gone up to first last compression roller 5 and second, snub pulley 2 is used for supporting the tubular product lower part, can carry out vertical regulation, left side compression roller 3 is used for supporting the tubular product left side, can carry out horizontal adjustment, right side compression roller 4 is used for supporting the tubular product right side, can carry out horizontal regulation, compression roller 6 sets up respectively in the 11 both sides of crack guide piece on first last compression roller 5 and the second, can carry out horizontal regulation and vertical regulation, can be 30-45 settings with vertical line, these roller regulation also mainly are driven through power unit, like cylinder or motor etc. And lower idler 2, left side compression roller 3, right side compression roller 4, compression roller 6 all can rotate on first upper compression roller 5 and the second, mainly drive through power unit, like the motor, can drive tubular product and move forward like this, and because the size of tubular product probably changes, so these five rollers of compression roller 6 all are detachable connection in frame 1 on lower idler 2, left side compression roller 3, right side compression roller 4, first upper compression roller 5 and the second.

A welding seam guiding device comprises a guide pipe 10 inserted into the pipe, wherein the insertion means passive insertion, that is, the pipe is moving, and the guide pipe 10 is stationary, when the pipe moves to the position of the guide pipe 10, the guide pipe 10 is automatically inserted into the pipe, the interior of the guide pipe 10 is hollow, and has two channels, one channel is communicated with cooling water for cooling the pipe, and is a circulating channel, so that the cooling water cannot leak out from the guide pipe 10 and only flows in the circulating channel, the other channel is communicated with welding protective gas, such as nitrogen, and is sprayed out from a gas outlet at the upper part of the front end of the guide pipe 10, because the welding seam is generally at that position, the welding effect is better, the upper part of the guide pipe 10 is provided with a seam guide sheet 11 for matching with the welding seam and guiding the position of the welding seam, and the seam guide sheet 11 is locked on the guide pipe 10 by a screw, and the thickness of the end of the seam guide piece 11 close to the welding position is smaller than that of the end far away from the welding position, so that the seam is narrower and narrower until the welding position is reached for welding, the seam guide device also comprises an upper clamping device 12 for clamping the seam guide piece 11, the upper clamping device 12 is arranged on one surface of the rack 1, and the main function is to clamp the seam guide piece 11 to play a role in fixing the guide pipe 10 and can be adjusted in the vertical direction.

The working principle of the positioning mechanism is as follows: tubular product moves along with feeding mechanism toward frame 1, when removing a certain position, the tubular product front end can stretch into in the space that forms between lower supporter 7 and the left and right sides support piece 9, and continue to move forward and can entangle guide tube 10, and the crack on the guide tube 1018 can pass the gap on the tubular product this moment, and then play the direction locate function, because lower supporter 7, left supporter 8 and right supporter 9 still are provided with the gyro wheel, and tubular product still is promoted by feeding mechanism this moment, tubular product can continue to move forward, then can contact with five rollers, then tubular product is cliied according to the size of tubular product to five rollers, can be better promptly fix a position the tubular product between five rollers, then rotate through five rollers and drive tubular product forward movement to welding position and weld.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (6)

1. The utility model provides a positioning mechanism for laser pipe welding machine which characterized in that: it includes frame (1), be equipped with through-hole (13) on frame (1), just through-hole (13) one side is equipped with first positioner, through-hole (13) opposite side is equipped with second positioner, just still be equipped with welding seam guiding device between first positioner and the second positioner, just second positioner is five roller positioning mechanism.

2. The positioning mechanism for a laser pipe welder according to claim 1, characterized in that: the five-roller positioning mechanism comprises a lower supporting roller (2) used for supporting the lower part of the pipe, a left side pressing roller (3) used for limiting the pipe, a right side pressing roller (4) used for limiting the right side of the pipe, a first upper pressing roller (5) used for abutting against the left side of the upper part of the pipe and a second upper pressing roller (6) used for abutting against the right side of the upper part of the pipe, the first upper pressing roller (5) and the second upper pressing roller (6) are symmetrical along a vertical line, and the first upper pressing roller (5) and the second upper pressing roller (6) are 30-45 degrees with the vertical line.

3. The positioning mechanism for a laser pipe welder according to claim 1, characterized in that: the first positioning device comprises a lower supporting piece (7), a left supporting piece (8) and a right supporting piece (9), and rollers which are convenient for the pipes to move are arranged on the lower supporting piece (7), the left supporting piece and the right supporting piece (9).

4. The positioning mechanism for a laser pipe welder according to claim 1, characterized in that: the welding seam guiding device comprises a guide pipe (10) extending into the pipe, a seam guiding sheet (11) arranged on the upper portion of the guide pipe (10) and used for being matched with a welding seam of the pipe, and an upper clamping device (12) arranged on the rack (1) and used for clamping the seam guiding sheet (11).

5. The positioning mechanism for a laser pipe welder according to claim 4, characterized in that: the thickness of one end, close to the welding position, of the seam guide piece (11) is smaller than that of one end, far away from the welding position, of the seam guide piece.

6. The positioning mechanism for a laser pipe welder according to claim 4, characterized in that: two channels are arranged in the guide pipe (10), namely a first channel for introducing cooling water and a second channel for introducing protective gas, and an air outlet is formed in the upper part of the front end of the guide pipe (10) and communicated with the second channel.

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