CN211804469U

CN211804469U - Laser welding fixture

Info

Publication number: CN211804469U
Application number: CN202020231868.3U
Authority: CN
Inventors: 许曹华; 李明刚; 陈景朴
Original assignee: Yichang Pusher Auto Parts Co ltd
Current assignee: Yichang Pusher Auto Parts Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-10-30
Anticipated expiration: 2030-02-28

Abstract

The utility model provides a laser welding anchor clamps, including the base, rotationally install in base top and up end through the slope connecting axle with slope connecting axle vertically first press from both sides tight dish, be used for driving first clamp to press from both sides tight dish up end and press from both sides tight dish and install the work piece clamping component who presss from both sides tight dish up end at the second of slope connecting axle pivoted drive assembly, detachable being fixed in first clamp and pressing from both sides tight dish up end and parallel with it, work piece clamping component contains the arc and presss from both sides tight seat and cooperates with it in order to realize pressing from both sides the activity holder of pressing from both sides tight pipe form work piece, and the centre of a circle of the arc presss from both sides tight seat and the axle center coincidence of slope connecting axle when the tight. Adopt the technical scheme of the utility model, can effectively solve the technical problem who welds circular workpiece in the pipe spare.

Description

Laser welding fixture

Technical Field

The utility model relates to an automobile parts processing field especially relates to a laser welding anchor clamps.

Background

The welding of current pipe form work piece mostly is laser welder along being circular motion to the seam, for example the chinese utility model patent that application number is 201721738234.1. When a circular or annular workpiece is to be welded in the circular tubular workpiece, the laser welding gun needs to be arranged obliquely, and the purpose of welding cannot be achieved by circular motion of the laser welding gun. Therefore, a new clamp is needed, which can clamp the workpiece when the inner part of the circular tubular workpiece is welded, and is suitable for circular tubular workpieces with multiple sizes as much as possible.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a laser welding fixture, through set up the motor in base one side, by the inside drive mechanism of motor drive base to drive first tight dish of clamp and the tight dish rotation of second clamp by drive mechanism, thereby can make and treat that welded workpiece takes place pivoted technological means, solved current laser welding fixture and only played the fixed action and can not accomplish the problem of pipe form part inner weld. Furthermore, the utility model discloses in, the top surface slope of base sets up to first tight dish of clamp and the tight dish of second clamp all incline to set up, and at the rotation in-process, the processing position of treating welding workpiece is the lower point on the ring all the time, the going on of the welding process of being convenient for more.

In order to solve the technical problem, the utility model discloses specifically adopt following technical scheme: the utility model provides a laser welding anchor clamps, including the base, rotationally install through the slope connecting axle in base top and up end with slope connecting axle vertically first press from both sides tight dish, be used for driving first press from both sides tight dish pivoted drive assembly, detachable be fixed in first press from both sides tight dish up end and press from both sides tight dish rather than parallel second and install the work piece clamping component who presss from both sides tight dish up end at the second, work piece clamping component contains the arc and presss from both sides tight seat and cooperates with it in order to realize pressing from both sides the activity holder of tight pipe form work piece, and the centre of a circle of the tight seat of arc and the axle center coincidence of slope connecting axle when the tight dish of second clamp is fixed in on first clamp dish.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses can be applicable to and weld the pipe form work piece is inside. The connecting shaft is obliquely arranged, so that the end face of the circular tubular workpiece is also in an oblique state, the welding gun is aligned to the lower part of the welding gun for welding, the welding position can be always in the visual field of operators, and the welding is facilitated.

2. When the clamping assembly is loosened, the second clamping discs with different specifications can be replaced, and the arc-shaped clamping seats on the second clamping discs with different specifications have different radians so as to adapt to the circular tubular workpieces with different sizes.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is another schematic view of the angle structure according to the embodiment of the present invention.

Detailed Description

The following detailed description of the present invention will be made with reference to the accompanying drawings and examples. As shown in fig. 1 and fig. 2, the embodiment of the present invention provides a laser welding fixture, which comprises a base 1, a first clamping disk 4 rotatably mounted on the base 1 through an inclined connecting shaft 12, a driving assembly for driving the first clamping disk 4 to rotate around the inclined connecting shaft 12, a second clamping disk 5 detachably fixed on the upper end surface of the first clamping disk 4 and parallel to the first clamping disk 4, and a workpiece clamping assembly mounted on the upper end surface of the second clamping disk 5, wherein the workpiece clamping assembly comprises an arc-shaped clamping seat 8 and a movable clamping member matched with the arc-shaped clamping seat to clamp a circular tubular workpiece M, and when the second clamping disk 5 is fixed on the first clamping disk 4, the center of the arc-shaped clamping seat 8 coincides with the axis of the inclined connecting shaft 12.

In the using process, a proper second clamping disc 5 is selected according to the size of the round tubular workpiece M, the shape of the inner arc surface of the arc-shaped clamping seat 8 on the second clamping disc 5 is matched with the shape M of the round tubular workpiece to be welded, and the second clamping disc 5 is fixed on the first clamping disc 4. Then, the tubular workpiece M is placed on the second clamping disk 5 to be attached to the arc-shaped clamping seat 8, and the movable clamping piece is adjusted to be fixed in the workpiece clamping assembly. The clamp is integrally placed below the laser welding gun, the laser welding gun is obliquely arranged, and the gun head is aligned with the lower part (the lower part is arranged because the circular tubular workpiece M is obliquely arranged) of the inner ring welding position (the circle of the joint of the circular tubular workpiece M and the workpiece N to be welded in the circular tubular workpiece M) of the circular tubular workpiece M. The driving assembly is used for driving the inclined connecting shaft 12 to drive the first clamping disk 4 and the second clamping disk 5 to rotate, so that the circular tubular workpiece M rotates along with the first clamping disk and the second clamping disk.

According to some embodiments of the present invention, the second clamping disk 5 is realized by a plurality of clamping lugs 9 fixed on the circumference of the first clamping disk 4 and a clamping rod 10 screwed with the clamping lugs 9 and detachably connected to the first clamping disk 4. The assembling method comprises the following steps: the clamping bars 10 are rotated with one end against the second clamping disk 5 until all clamping bars 10 are immobilized. For convenient screwing, the clamping rod 10 can be a butterfly bolt.

According to some embodiments of the utility model, the activity holder include with the relative stopper 6 that sets up of arc clamp holder 8, be equipped with the screw through-hole on the stopper 6, screw through-hole internal thread connection gag lever post 7. The relative position between the limiting rod 7 and the limiting block 6 can be adjusted by rotating the limiting rod 7, the limiting rod 7 is screwed towards the inside of the limiting block 6, and the tubular workpiece M to be welded can be fixed between the limiting block 6 and the arc-shaped clamping seat 8.

According to some embodiments of the utility model, drive assembly includes motor 2 and bevel gear reduction gear, bevel gear reduction gear's input shaft key connects motor shaft 3.

According to some embodiments of the present invention, the inclined connecting shaft 12 may be fixed to the base 1 through a bearing 13, and the inclined connecting shaft 12 is connected to the first clamping disk 4 through a key. The key connection is firm, so that relative rotation between the first clamping disc 4 and the inclined connecting shaft 12 is avoided.

According to the utility model discloses a some embodiments, 4 central point departments of first tight dish of clamp are equipped with spud 11, the second presss from both sides tight dish 5 lower bottom surface be equipped with the corresponding locating hole of spud 11. When assembling the first clamping disk 4 and the second clamping disk 5, the positioning piles 11 are inserted into the positioning holes (not shown in the figure) of the second clamping disk 5 to ensure that the second clamping disk 5 and the first clamping disk 4, and even the inclined connecting shaft 12, are concentric, and then the clamping rods 10 are screwed to clamp the second clamping disk 5. The concentricity of the first clamping disk 4 and the second clamping disk 5 facilitates the welding work of the whole circumference in the inner ring of the circular tubular workpiece M. Preferably, the positioning studs 11 are triangular prisms or quadrangular prisms (quadrangular prisms are shown in fig. 2), which prevents the second clamping disk 5 from rotating relative to the first clamping disk 4, further enhancing the clamping effect.

According to some embodiments of the present invention, the included angle between the top surface of the base 1 and the horizontal plane is greater than or equal to 3 degrees and less than or equal to 15 degrees. It should be noted that the included angle between the top surface of the base 1 and the horizontal plane cannot be too large, and if the included angle is too large, the welding position on the inner wall of the circular tubular workpiece M is easily blocked by the workpiece body on the opposite side in the welding process, so that the welding cannot be performed.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A laser welding jig which characterized in that: including the base, rotationally install through the slope connecting axle in base top and up end with slope connecting axle vertically first press from both sides tight dish, be used for driving first press from both sides tight dish pivoted drive assembly, detachably be fixed in first press from both sides tight dish up end and press from both sides tight dish rather than parallel second and install the work piece clamping component who presss from both sides tight dish up end at the second, work piece clamping component contains the arc and presss from both sides tight seat and cooperates with it in order to realize pressing from both sides the activity holder of pressing from both sides tight pipe form work piece, and the centre of a circle of arc clamp tight seat coincides with the axle center of slope connecting axle when the second presss from both sides tight dish and is fixed in on first press from.

2. A laser welding jig according to claim 1, wherein: the second clamping disc is detachably connected with the first clamping disc through a plurality of clamping lugs fixed on the circumference of the first clamping disc and a clamping rod in threaded connection with the clamping lugs.

3. A laser welding jig according to claim 1, wherein: the movable clamping piece comprises a limiting block which is arranged opposite to the arc-shaped clamping seat, a threaded through hole is formed in the limiting block, and the threaded through hole is connected with the limiting rod in a threaded mode.

4. A laser welding jig according to claim 1, wherein: the driving assembly comprises a motor and a bevel gear reducer, and an input shaft of the bevel gear reducer is in keyed connection with a rotating shaft of the motor.

5. A laser welding jig according to claim 4, wherein: the inclined connecting shaft is in key connection with the first clamping disk.

6. A laser welding jig according to any one of claims 1 to 5, wherein: the center of the first clamping disc is provided with a positioning pile, and the lower bottom surface of the second clamping disc is provided with a positioning hole corresponding to the positioning pile.

7. A laser welding jig according to claim 6, wherein: the positioning pile is triangular prism or quadrangular prism.

8. A laser welding jig according to claim 7, wherein: the included angle between the top surface of the base and the horizontal plane is more than or equal to 3 degrees and less than or equal to 15 degrees.