CN212858172U - Anti-interference laser welding fixture device - Google Patents

Anti-interference laser welding fixture device Download PDF

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Publication number
CN212858172U
CN212858172U CN202021311411.XU CN202021311411U CN212858172U CN 212858172 U CN212858172 U CN 212858172U CN 202021311411 U CN202021311411 U CN 202021311411U CN 212858172 U CN212858172 U CN 212858172U
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CN
China
Prior art keywords
welding
plate
cover plate
pressing
rod
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Active
Application number
CN202021311411.XU
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Chinese (zh)
Inventor
张涛
匡余华
王道林
郭炯远
陈勇
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Nanjing University of Science and Technology
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Nanjing University of Science and Technology
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Priority to CN202021311411.XU priority Critical patent/CN212858172U/en
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Abstract

The utility model provides an prevent interfering laser welding fixture device, its characterized in that: the method comprises the following steps: the pressing plate, the supporting rod, the pressing head, the cover plate, the bottom plate, the arc-shaped screw rod and the servo motor. The utility model discloses can realize that continuous laser beam once welds and takes shape, improve welding production efficiency greatly to because only welding process has avoided carrying out secondary welding's problem because the welding position that spot welding caused, and welding defects problems such as welding crack, gas pocket that secondary welding caused have promoted welding quality.

Description

Anti-interference laser welding fixture device
Technical Field
The utility model relates to a laser welding auxiliary assembly field especially relates to an prevent interfering laser welding fixture device.
Background
At present, the aluminum alloy shells of receiving and transmitting components of some electronic components, such as radio frequency devices, connectors and the like, are hermetically welded by adopting a laser welding technology. Under the protection of inert gas, the aluminum alloy cover plate and the aluminum alloy shell are welded together, and the inert gas is sealed in the cavities of the cover plate and the shell, so that the effect of protecting internal electronic components is achieved.
Generally, before continuous welding, the cover plate and the shell are fixed by a pressing block or a fixture, and then fixed by laser spot welding. And after spot welding is finished, removing the tool, and then carrying out continuous sealing welding. Firstly, welding efficiency is reduced by adopting a mode of firstly spot welding and then continuously welding, most importantly, in the continuous welding process, spot welding parts can be secondarily welded, welding defects such as air holes and cracks are easily caused, and welding quality is affected. When the existing tool is used for clamping, the cover plate needs to be clamped through external force, so that the supporting parts can interfere laser beams, and continuous welding and one-time welding forming cannot be directly adopted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an prevent interfering laser welding fixture device just in order to solve above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
an interference-proof laser welding jig device comprising: the pressing plate comprises a pressing plate 1, a supporting rod 2, a pressing rod 3, a pressing head 4, a cover plate 6, a bottom plate 8, an arc-shaped screw rod 9 and a servo motor.
Two ends of the pressure plate 1 are respectively hinged with the support rod 2 and the pressure rod 3;
a trapezoidal groove slide rail 7 is arranged in the bottom plate 8 along an arc shape, an arc-shaped lead screw 9 is arranged in the trapezoidal groove slide rail 7, the support rod 2 is in an inverted T shape, and the support rod 2 can slide along the arc-shaped lead screw 9 in the trapezoidal groove slide rail 7 under the compression state of the pressure plate 1;
the lower end of the pressure lever 3 is provided with a pressure head 4, and a cover plate 6 covering a workpiece to be welded is arranged below the pressure head 4;
a welding seam 5 is formed between the cover plate 6 and a workpiece to be welded;
the servo motor is arranged outside the trapezoidal groove slide rail 7.
Further, the cover plate is 0.45mm thick.
Further, the welding seam 5 is a position to be welded, and the gap is 1/10 smaller than the thickness of the cover plate.
Compared with the prior art, the beneficial effects of the utility model are that: when the closed graph is welded, the problem of laser beam interference caused by a clamp can be avoided, continuous laser beam one-time welding forming can be realized, and the welding process that spot welding fixing is carried out by clamping the clamp firstly and then continuous welding is carried out by dismounting the tool is replaced. The utility model discloses an use, will improve welding production efficiency greatly to because only welding process, avoided because the welding position that spot welding caused carries out secondary welding's problem, avoided because welding defects problems such as welding crack, gas pocket that secondary welding caused, promoted welding quality.
Drawings
FIG. 1 is a schematic structural diagram of the present invention
FIG. 2 is a schematic structural diagram of the present invention
In the figure: the device comprises a pressing plate 1, a supporting rod 2, a pressing rod 3, a pressing head 4, a welding line 5, a cover plate 6, a trapezoid groove slide rail 7, a bottom plate 8 and an arc-shaped screw rod 9.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the following embodiments.
As shown in fig. 1 and 2, the utility model provides an anti-interference laser welding fixture device, include: the pressing plate comprises a pressing plate 1, a supporting rod 2, a pressing rod 3, a pressing head 4, a cover plate 6, a bottom plate 8, an arc-shaped screw rod 9 and a servo motor. Two ends of the pressure plate 1 are respectively hinged with the support rod 2 and the pressure rod 3; a trapezoidal groove slide rail 7 is arranged in the bottom plate 8 along an arc shape, an arc-shaped lead screw 9 is arranged in the trapezoidal groove slide rail 7, the support rod 2 is in an inverted T shape, and the support rod 2 can slide along the arc-shaped lead screw 9 in the trapezoidal groove slide rail 7 under the compression state of the pressure plate 1; the lower end of the pressure lever 3 is provided with a pressure head 4, and a cover plate 6 covering a workpiece to be welded is arranged below the pressure head 4; a welding seam 5 is formed between the cover plate 6 and a workpiece to be welded; the servo motor is arranged outside the trapezoidal groove slide rail 7. The thickness of the cover plate is 0.45mm, and the welding seam 5 is a position to be welded, and the gap is 1/10 which is smaller than the thickness of the cover plate.
The working principle of the device is as follows: preparing for welding, positioning a welding starting point at the position of C point in the figure 2, setting welding process parameters, starting welding, and starting welding by laser beams from the C point clockwise along a welding seam 5. Meanwhile, the servo drive drives the position of the support rod 2 to move from point a to point B (the position of the broken-line pressure plate in fig. 2) along the arc-shaped screw rod 9 in the trapezoidal groove track 7. When the laser beam passes through the point D and the point E in sequence in the clockwise direction and reaches the point C again, the pressing plate is driven by the supporting rod 2 to leave the position of the welding seam interfered by the beginning of welding, and the one-time complete welding process of the welding seam 5 is realized. And after the welding is finished, taking out the welded workpiece to finish the whole welding process. The support bar 2 can now be turned back to point a to await the next weld.
According to the welding speed, the time T1 when the laser beam moves from the point C to the point D and the time T2 when the laser beam moves from the point C to the point E are calculated, and the time T when the servo drive drives the supporting rod 2 to move from the point A to the point B is set to be more than T1 and less than T2.
The device drives the pressing plate 1 connected with the supporting rod 2 to rotate through the rotation of the supporting rod, so that the pressing plate 1 leaves the position of a welding seam interfered by the beginning of welding, the one-time complete one-time continuous welding process of the welding seam 5 is realized, and the fixture is not required to be disassembled for secondary welding.
The above description is only for some embodiments of the present invention, and it should be noted that, for those skilled in the art, other modifications and improvements can be made without departing from the inventive concept of the present invention, and all of them belong to the protection scope of the present invention.

Claims (4)

1. The utility model provides an prevent interfering laser welding fixture device which characterized in that: the method comprises the following steps: the device comprises a pressing plate (1), a supporting rod (2), a pressing rod (3), a pressing head (4), a cover plate (6), a bottom plate (8), an arc-shaped screw rod (9) and a servo motor;
two ends of the pressure plate (1) are respectively hinged with the support rod (2) and the pressure rod (3);
a trapezoidal groove slide rail (7) is arranged in the bottom plate (8) along an arc shape, an arc-shaped lead screw (9) is arranged in the trapezoidal groove slide rail (7), the support rod (2) is of an inverted T shape, and the support rod (2) can slide along the arc-shaped lead screw (9) in the trapezoidal groove slide rail (7) in a pressing state of the pressing plate (1);
the lower end of the pressure lever (3) is provided with a pressure head (4), and a cover plate (6) which covers the workpiece to be welded is arranged below the pressure head (4);
a welding seam (5) is formed between the cover plate (6) and a workpiece to be welded;
the servo motor is arranged outside the trapezoidal groove sliding rail (7).
2. An interference-proof laser welding jig device according to claim 1, characterized in that the cover plate (6) is 0.45mm thick.
3. An interference-proof laser welding fixture device according to claim 1, characterized in that the gap of the welding seam (5) is smaller than 1/10 of the cover plate thickness.
4. An interference-proof laser welding fixture device according to claim 1, characterized in that the type of the cover plate (6) is selected according to the work piece to be welded.
CN202021311411.XU 2020-07-07 2020-07-07 Anti-interference laser welding fixture device Active CN212858172U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021311411.XU CN212858172U (en) 2020-07-07 2020-07-07 Anti-interference laser welding fixture device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021311411.XU CN212858172U (en) 2020-07-07 2020-07-07 Anti-interference laser welding fixture device

Publications (1)

Publication Number Publication Date
CN212858172U true CN212858172U (en) 2021-04-02

Family

ID=75213305

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021311411.XU Active CN212858172U (en) 2020-07-07 2020-07-07 Anti-interference laser welding fixture device

Country Status (1)

Country Link
CN (1) CN212858172U (en)

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