Laser welding device for core part connecting plate of automobile seat angle adjuster

Abstract

The utility model relates to a laser welding device for a core part connecting plate of an automobile seat recliner, which belongs to the field of automobile seat welding and comprises a frame, a worktable and a base. The base and the air cylinder support are fixedly arranged on the workbench. The cylinder is fixedly connected with the cylinder bracket; the protective cover is connected with a piston rod of the cylinder through a protective cover bracket; silica gel rings are fixedly arranged at the lower ends of the protective covers; a detection pin is fixedly arranged on the protective cover bracket; the proximity switch is detachably connected to the air cylinder support. The core piece positioning seat and the connecting plate positioning seat are respectively and fixedly arranged on the base; the first laser welding machine and the second laser welding machine are arranged on the two sides of the base correspondingly. The protection window is hinged to the frame. Due to the fact that the high-temperature-resistant silica gel ring is arranged on the lower portion of the protective cover and matched with the proximity switch with the adjustable height, it is guaranteed that the protective cover can tightly cover rubber accessories of core parts of the angle adjuster after being pressed downwards along with a piston rod of the air cylinder, and damage to the rubber accessories caused by splashed high-temperature welding slag is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of automobile seat welding, in particular to a laser welding device for a core component connecting plate of an automobile seat recliner. Background Art

[0002] The core component of a car seat recliner needs to be welded to a connecting plate before proceeding to the next assembly step. Some of the components in the recliner core are made of ordinary rubber. During the welding process, hot welding slag can easily splash onto the rubber components, causing burns or scorching, and affecting product quality. The brass shield used in existing technology does not fit tightly against the workpiece, leaving a 0.8mm-1mm gap between its lower edge and the workpiece. Some of the hot welding slag can still splash onto the rubber components, compromising product quality and stability. Pressing down hard on the brass shield to close the gap can deform the shield or even damage the workpiece. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention develops a laser welding device for the core component connecting plate of a car seat recliner. The technical solution adopted by the present invention is: a laser welding device for the core component connecting plate of a car seat recliner, characterized in that it includes a frame 1, a workbench 2 and a base 3; the base 3 is arranged on the workbench 2; a cylinder bracket 5 is fixedly arranged on the workbench 2; the cylinder 4 is fixedly connected to the cylinder bracket 5; a protective cover 7 is connected to the piston rod of the cylinder 4 through a protective cover bracket 15; a silicone ring 18 is fixedly arranged at the lower end of the protective cover 7; a detection pin 6 is fixedly arranged on the protective cover bracket 15; a proximity switch 10 is detachably connected to the cylinder bracket 5; a core component positioning seat 11 and a connecting plate positioning seat 12 are respectively fixedly arranged on the base 3; a first laser welder 8 and a second laser welder 9 are respectively arranged on both sides of the base 3; a protective window 13 is hinged to the frame 1; a buzzer 19 is arranged on the workbench 2; and the buzzer 19 is electrically connected to the proximity switch 10.

[0004] The benefits of the present invention are as follows: since a high-temperature resistant silicone ring is provided at the lower part of the protective cover, in conjunction with a height-adjustable proximity switch, the protective cover can tightly cover the rubber fittings of the core component of the recliner after being pressed down by the piston rod of the cylinder, effectively preventing damage to the rubber fittings by splashing high-temperature welding slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1 This is a schematic diagram of the structure of a laser welding device for connecting plates of a core component of a car seat recliner according to the utility model;

[0006] Figure 2 yes Figure 1A schematic diagram of the structure of the protective cover and the protective cover bracket from the left;

[0007] Figure 3 yes Figure 1 A schematic top view of the structure of the base;

[0008] Figure 4 This is a top view of the state where the core component of the recliner is installed in the core component positioning seat of the utility model;

[0009] Figure 5 It is a top view of the state where the connecting plate is installed in the connecting plate positioning seat of the utility model;

[0010] Figure 6 This is a schematic diagram of the protective cover of the utility model covering the core component of the angle adjuster, ready for welding;

[0011] Figure 7 yes Figure 6 An enlarged schematic diagram of the protective cover covering the core component of the recliner;

[0012] Figure 8 This is a schematic top view of the state of the utility model during welding;

[0013] In the figure: 1 frame; 2 workbench; 3 base; 4 cylinder; 5 cylinder bracket; 6 detection pin; 7 protective cover; 8 first laser welder; 9 second laser welder; 10 proximity switch; 11 core component positioning seat; 12 connecting plate positioning seat; 13 protective window; 14 adjuster core component; 15 protective cover bracket; 16 rubber accessories; 17 connecting plate; 18 silicone ring; 19 buzzer. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0015] like Figures 1 to 3As shown, the utility model includes: a frame 1, a workbench 2 and a base 3; the base 3 is arranged on the workbench 2; the cylinder bracket 5 is fixedly arranged on the workbench 2; the cylinder 4 is fixedly connected to the cylinder bracket 5; the protective cover 7 is connected to the piston rod of the cylinder 4 through the protective cover bracket 15; a silicone ring 18 is fixedly arranged at the lower end of the protective cover 7; a detection pin 6 is fixedly arranged on the protective cover bracket 15; the proximity switch 10 is detachably connected to the cylinder bracket 5; the core component positioning seat 11 and the connecting plate positioning seat 12 are respectively fixedly arranged on the base 3; the first laser welder 8 and the second laser welder 9 are respectively arranged on both sides of the base 3; the protective window 13 is hinged to the frame 1; the buzzer 19 is arranged on the workbench 2; the buzzer 19 is electrically connected to the proximity switch 10.

[0016] When doing specific operations, such as Figure 4 As shown, the worker first installs the recliner core 14 into the core positioning seat 11, with the rubber fitting 16 of the recliner core facing upwards; Figure 5 As shown, the worker then installs the connecting plate 17 into the connecting plate positioning seat 12 to complete the assembly positioning of the workpiece before welding. Figures 6 to 8 As shown, the worker closes the protective window 13 to prevent welding slag from splashing. The worker operates the piston rod of the air cylinder 4 to press down, and the protective cover 7 covers the recliner core 14, protecting the rubber accessories thereon. When the detection pin 6 descends to the preset position and is detected by the proximity switch 10, the buzzer 19 sounds an alarm, prompting the worker to press the protective cover into place. At this time, the silicone ring 18 at the lower end of the protective cover 7 tightly covers the rubber accessories on the recliner core 14. The worker operates the air cylinder 4 to stop pressing down, and operates the first laser welder 8 and the second laser welder 9 to complete the arc welding of the left and right sides of the recliner core 14 and the connecting plate 17.

[0017] By adjusting the height of the proximity switch 10 , the pressing depth of the protective cover 7 can be adjusted to ensure that the silicone ring 18 can fit the workpiece tightly without damaging the protective cover 7 due to excessive pressing.

[0018] The silicone ring 18 used in the present invention is high-temperature resistant silicone; the laser welding machine used in the present invention is a commercially available product.

[0019] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A laser welding device for the connecting plate of the core component of a car seat recliner, characterized in that: The invention comprises a frame (1), a workbench (2) and a base (3); the base (3) is arranged on the workbench (2); a cylinder bracket (5) is fixedly arranged on the workbench (2); a cylinder (4) is fixedly connected to the cylinder bracket (5); a protective cover (7) is connected to the piston rod of the cylinder (4) through a protective cover bracket (15); a silicone ring (18) is fixedly arranged at the lower end of the protective cover (7); a detection pin (6) is fixedly arranged on the protective cover bracket (15); a proximity switch (10) is detachably connected to the cylinder bracket (5); a core component positioning seat (11) and a connecting plate positioning seat (12) are respectively fixedly arranged on the base (3); a first laser welder (8) and a second laser welder (9) are respectively arranged on both sides of the base (3); a protective window (13) is hinged to the frame (1); a buzzer (19) is arranged on the workbench (2); and the buzzer (19) is electrically connected to the proximity switch (10).

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