Laser welding tooling

Abstract

The present invention discloses a laser welding tool, including a plastic part to be welded, which is fixed on a plastic part support plate, including an upper pressing device, a lower pressing device and a connecting device for connecting the upper pressing device and the lower pressing device, the lower pressing device including a base plate, a plurality of support plates movably provided on the base plate, a plurality of limit blocks provided on the support plate, the plastic part support plate is placed on the support plate through the limit blocks, a plurality of support seats and a cylinder are provided below the base, the cylinder is fixed to the bottom surface of the base, and the output end of the cylinder passes through the base and is connected to the bottom surface of the support plate. Compared with the existing technology, the present invention fixes the plastic part in large size through the upper and lower pressing plates, so that the plastic part is subjected to balanced force during welding, improves the quality of laser welding, and avoids voids and areas that cannot be welded due to insufficient pressing.

Description

Technical Field

[0001] The present invention relates to the field of plastic parts welding, in particular to laser welding tooling. Background Art

[0002] Laser processing technology utilizes the interaction between laser beams and matter to perform cutting, welding, surface treatment, drilling, and micromachining on materials (including metals and non-metals). As an advanced manufacturing technology, laser processing has been widely used in key sectors of the national economy, including automotive, electronics, electrical appliances, aviation, metallurgy, and machinery manufacturing. It plays an increasingly important role in improving product quality, productivity, automation, pollution prevention, and reducing material consumption.

[0003] When welding the plate frames, covers and bipolar plates of existing laser-welded flow batteries, problems such as loose welds and air leakage and water seepage in areas that cannot be welded are caused by factors such as uneven plastic parts. Summary of the Invention

[0004] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a laser welding tool with balanced processing.

[0005] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0006] The laser welding tool includes a plastic part to be welded, which is fixed on a plastic part support plate, and includes an upper pressing device, a lower pressing device and a connecting device for connecting the upper pressing device and the lower pressing device. The lower pressing device includes a base plate, and a plurality of support plates are movably provided on the base plate. A plurality of limit blocks are provided on the support plate. The plastic part support plate is placed on the support plate through the limit blocks. A plurality of support seats and a cylinder are provided under the base. The cylinder is fixed to the bottom surface of the base, and the output end of the cylinder passes through the base and is connected to the bottom surface of the support plate.

[0007] As a further preferred embodiment of the present invention, the upper pressing device includes a fixed frame, one end of the fixed frame is connected to the bottom plate via a connecting device, and two upper pressing plates are fixedly arranged in the fixed frame via a fixing block.

[0008] As a further preferred embodiment of the present invention, the upper pressing plate is made of highly transparent quartz glass.

[0009] As a further preferred embodiment of the present invention, a handle is installed at one end of the fixing frame away from the connecting device.

[0010] As a further preferred embodiment of the present invention, the connecting device includes a symmetrically arranged bearing seat, a bearing and a nitrogen spring, the bearing seat is fixed to the base plate, the bearing is arranged in the bearing seat, and is connected to the fixed frame through a rotating shaft.

[0011] As a further preferred embodiment of the present invention, a plurality of springs are provided between the support and the base.

[0012] The benefits of the present invention are that: the present invention uses two upper and lower pressing plates to fix large-sized plastic parts, so that the plastic parts are subjected to balanced force during welding, the quality of laser welding is improved, and voids and areas that cannot be welded are avoided due to insufficient pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the present invention;

[0014] Figure 2 It is a three-dimensional diagram of the present invention.

[0015] The meanings of the reference numerals in the figure are: 1. Plastic part to be welded, 2. Plastic part support plate, 3. Support plate, 4. Base plate, 5. Support seat, 6. Bearing seat, 7. Handle, 8. Nitrogen spring, 9. Cylinder, 10. Spring, 11. Upper pressure plate, 12. Limit block. DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] The laser welding tool comprises a plastic part 1 to be welded, which is fixed on a plastic part support plate 2, and further comprises an upper pressing device, a lower pressing device and a connecting device for connecting the upper pressing device and the lower pressing device.

[0018] The pressing device includes a base plate 4, on which a plurality of support plates 3 are movably arranged, and a plurality of limit blocks 12 are arranged on the support plate 3. The plastic part support plate 2 is placed on the support plate 3 through the limit blocks 12. A plurality of support seats 5 and a cylinder 9 are arranged under the base. The cylinder 9 is fixed to the bottom surface of the base, and the output end of the cylinder 9 passes through the base and is connected to the bottom surface of the support plate 3.

[0019] A plurality of springs 10 are provided between the support and the base.

[0020] The upper pressing device includes a fixed frame, one end of which is connected to the bottom plate 4 via a connecting device, and two upper pressing plates 11 are fixedly arranged in the fixed frame via a fixing block.

[0021] The upper pressing plate 11 is made of high-transmittance quartz glass.

[0022] A handle 7 is mounted on one end of the fixing frame away from the connecting device.

[0023] The connecting device includes a symmetrically arranged bearing seat 6, a bearing and a nitrogen spring 108. The bearing seat 6 is fixed on the base plate 4. The bearing is arranged in the bearing seat 6 and is connected to the fixed frame through a rotating shaft. The nitrogen springs 108 on both sides provide effort-saving assistance for downward pressure.

[0024] Fix the plastic part 1 to be welded to the plastic part support plate 2, place the plastic support plate on the support plate 3, and start the cylinder 9 to drive the support plate 3 to press against the base plate 4. Use the handle 7 to move the fixed frame downward, so that the upper pressure plate 11 presses against the plastic part 1 to be welded. The cylinder 9 is controlled to exhaust through the solenoid valve, and the spring 10 returns to the upward state from the contracted state and pushes the support upward, playing a role of pressing from the bottom, so that the larger and uneven plastic part is evenly stressed.

[0025] The benefits of the present invention are that: the present invention uses two upper and lower pressing plates to fix large-sized plastic parts, so that the plastic parts are subjected to balanced force during welding, the quality of laser welding is improved, and voids and areas that cannot be welded are avoided due to insufficient pressing.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the scope of protection of the present invention.

Claims

1. A laser welding tool, comprising a plastic part to be welded, wherein the plastic part to be welded is fixed on a plastic part support plate, characterized in that: The cam is connected to the bottom plate by a connecting device, and the cam is connected to the bottom plate by a connecting device. The cam is connected to the bottom plate by a connecting device, and two upper pressing plates are fixedly arranged in the fixed frame by a fixing block; the cam is connected to the bottom plate by a connecting device, and the cam is connected to the bottom plate by a connecting block. The cam is connected to the bottom plate by a connecting device, and the cam is connected to the bottom plate by a connecting block.

2. The laser welding tool according to claim 1, characterized in that: The upper pressing plate is made of high-transmittance quartz glass.

3. The laser welding tool according to claim 1, characterized in that: A handle is installed at one end of the fixing frame away from the connecting device.

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