Auxiliary clamping equipment for laser welding of seat angle adjuster
By designing a laser welding auxiliary clamping device for seat angle adjusters, the problem of non-adjustable height of core plate welding tools in existing technologies has been solved, achieving effective core plate clamping and fume absorption, and improving the cleanliness and safety of the welding process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU HONGNA MASCH CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-14
AI Technical Summary
Existing core plate welding tools cannot be height adjusted, making clamping and unloading inconvenient, and they cannot adjust the welding area to a suitable height for cleaning by vacuum equipment.
A laser welding auxiliary clamping device for seat adjusters was designed, comprising a machine platform, a motor, a connecting ring, a dust hood, a screw, an air extraction pipe, and a clamping mechanism. The rotation of the clamping mechanism and the height adjustment of the lifting seat are controlled by the motor, and combined with the position adjustment of the dust hood, the core plate is effectively clamped and the smoke and dust are absorbed.
It achieves effective clamping and slow rotation welding of the core disk, automatically adjusts the welding area, reduces the generation of heavy metal fumes, and improves the cleanliness and safety of the welding process.
Smart Images

Figure CN224115404U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seat angle adjuster processing technology, and in particular to a laser welding auxiliary clamping device for seat angle adjusters. Background Technology
[0002] An adjuster is a device installed on a car seat to adjust the angle of the seat back. This device typically consists of a backrest connecting plate, a seat connecting plate, a core component, a handwheel or adjusting handle, and a return spring.
[0003] One of the core components of a seat adjuster is the core plate. During the production of the core plate, it needs to be sealed and welded. This work is generally done by laser welding. Laser welding is prone to producing a lot of smoke and dust due to metal combustion. The internal heavy metal content is extremely high. Existing core plate welding tools and clamping equipment cannot adjust the height, which makes clamping and picking up parts inconvenient. Furthermore, it is impossible to adjust the welding area to a suitable height so that the vacuum equipment can clean the welding area in a targeted manner. Utility Model Content
[0004] This utility model addresses the deficiencies in the existing technology by providing a laser welding auxiliary clamping device for seat angle adjusters.
[0005] This utility model is achieved through the following technical solution:
[0006] A laser welding auxiliary clamping device for a seat adjuster includes a machine platform, a motor, a connecting ring, a dust hood, a screw, an extraction pipe, and a clamping mechanism. The motor is installed at the bottom of the machine platform, the connecting ring is fixed to the upper surface of the machine platform, the dust hood is movably connected to the connecting ring, the screw is fixedly installed at the bottom outer side of the dust hood, the extraction pipe is fixedly installed at the top outer side of the dust hood, and the clamping mechanism is located at the top of the machine platform. The clamping mechanism includes a connecting sleeve, a first hydraulic cylinder, a lifting seat, a connecting rod, a clamping seat, a second hydraulic cylinder, and a clamping block. The connecting sleeve is fixed to the output end of the motor, the first hydraulic cylinder is installed on the outside of the connecting sleeve, the connecting rod is fixedly installed at the telescopic end of the first hydraulic cylinder, the lifting seat is clamped on the inner top of the connecting sleeve, the clamping seat is connected to the top of the lifting seat, the second hydraulic cylinder is installed at the bottom of the clamping seat, and the clamping block is fixedly installed at the telescopic end of the second hydraulic cylinder.
[0007] In a preferred embodiment of the present invention, the bottom of the clamping seat is provided with an installation groove that cooperates with the second oil cylinder, and the bottom of the clamping seat is fixedly provided with a connecting shaft for connecting with the lifting seat;
[0008] The connecting shaft provides sufficient installation space at the bottom of the clamping seat and ensures effective connection with the lifting seat.
[0009] In a preferred embodiment of the present invention, one end of the clamping block extends through and to the inner side of the bottom of the clamping seat, the bottom of the clamping seat is provided with an adjustment hole that cooperates with the clamping block, and the two sides of the clamping block are provided with sliding grooves that cooperate with the inner wall of the adjustment hole.
[0010] The sliding grooves on both sides of the clamping block are engaged with the inner wall of the adjustment hole, which effectively guides the adjustment of the clamping block. The adjustment hole provides space for adjusting the position of the clamping block.
[0011] In a preferred embodiment of the present invention, one end of the screw passes through and extends to the outside of one side of the connecting ring, the surface of the connecting ring is provided with an adjustment groove that cooperates with the screw, and the surface of the screw is connected to a pressure nut by a thread;
[0012] The position of the dust hood is adjusted within the connecting ring to ensure that the dust suction holes on the inner wall of the dust hood can effectively absorb the fumes generated during welding. The screw surface is pressurized with a nut to effectively fix the adjusted dust hood.
[0013] In a preferred embodiment of this utility model, the lifting seat is provided with a locking tooth on its exterior, and a toothed groove that mates with it is provided on the inner side of the connecting sleeve.
[0014] The external locking teeth of the lifting seat mesh with the inner tooth groove of the connecting sleeve. The first oil cylinder controls the height adjustment of the lifting seat through the connecting rod at its telescopic end. The meshing of the tooth groove and the locking teeth allows the motor output to be effectively transmitted to the clamping seat.
[0015] The beneficial effects of this utility model are:
[0016] This laser welding auxiliary clamping equipment for seat adjusters effectively clamps the core plate of the seat adjuster. During the welding process, it controls the core plate to rotate slowly, automatically adjusts the welding area, and effectively absorbs the fumes generated by laser welding, reducing health problems caused by heavy metal fumes. During clamping and welding, the height of the clamping seat can be adjusted to facilitate clamping while effectively controlling the distance between the dust collection device and the welding area, thereby ensuring the dust collection effect. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the laser welding auxiliary clamping device for seat adjusters according to this utility model.
[0018] Figure 2 This is a schematic diagram of the main structure of the laser welding auxiliary clamping device for the seat adjuster of this utility model.
[0019] Figure 3 This is a schematic diagram of the dust cover installation structure of the laser welding auxiliary clamping device for seat adjusters according to this utility model.
[0020] Figure 4This is a schematic diagram of the clamping mechanism of the laser welding auxiliary clamping device for seat adjusters according to this utility model.
[0021] In the diagram: 1. Equipment platform; 2. Motor; 3. Connecting ring; 4. Dust hood; 5. Screw; 6. Air extraction pipe; 7. Clamping mechanism; 71. Connecting sleeve; 72. First hydraulic cylinder; 73. Lifting seat; 74. Connecting rod; 75. Clamping seat; 76. Second hydraulic cylinder; 77. Clamping block. Detailed Implementation
[0022] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.
[0023] like Figure 1-4 The illustrated laser welding auxiliary clamping device for a seat adjuster includes a machine platform 1, a motor 2, a connecting ring 3, a dust suction hood 4, a screw 5, an extraction pipe 6, and a clamping mechanism 7. The motor 2 is mounted on the bottom of the machine platform 1, the connecting ring 3 is fixed to the upper surface of the machine platform 1, the dust suction hood 4 is movably connected to the connecting ring 3, the screw 5 is fixedly disposed on the bottom outer side of the dust suction hood 4, the extraction pipe 6 is fixedly disposed on the top outer side of the dust suction hood 4, and the clamping mechanism 7 is disposed on the top of the machine platform 1. The clamping mechanism 7 includes a connecting sleeve 71. The system includes a first hydraulic cylinder 72, a lifting seat 73, a connecting rod 74, a clamping seat 75, a second hydraulic cylinder 76, and a clamping block 77. The connecting sleeve 71 is fixed to the output end of the motor 2. The first hydraulic cylinder 72 is installed on the outside of the connecting sleeve 71. The connecting rod 74 is fixedly installed at the telescopic end of the first hydraulic cylinder 72. The lifting seat 73 is clamped on the top inner side of the connecting sleeve 71. The clamping seat 75 is connected to the top of the lifting seat 73. The second hydraulic cylinder 76 is installed at the bottom of the clamping seat 75. The clamping block 77 is fixedly installed at the telescopic end of the second hydraulic cylinder 76.
[0024] Specifically, the bottom of the clamping seat 75 is provided with an installation groove that mates with the second hydraulic cylinder 76. A connecting shaft for connecting with the lifting seat 73 is fixedly provided at the bottom of the clamping seat 75. One end of the clamping block 77 passes through and extends to the inner side of the bottom of the clamping seat 75. An adjustment hole that mates with the clamping block 77 is provided at the bottom of the clamping seat 75. Sliding grooves that mate with the inner wall of the adjustment hole are provided on both sides of the clamping block 77. One end of the screw 5 passes through and extends to the outer side of one side of the connecting ring 3. An adjustment groove that mates with the screw 5 is provided on the surface of the connecting ring 3. A pressure nut is threadedly connected to the surface of the screw 5. The lifting seat 73 is provided with locking teeth on the outside. A toothed groove that mates with the connecting sleeve 71 is provided on the inner side of the connecting sleeve 71.
[0025] In this embodiment, when the first hydraulic cylinder 72 is in the retracted state, the clamping seat 75 is locked inside the top of the dust hood 4. At this time, it is inconvenient to install the core disk. Therefore, the first hydraulic cylinder 72 needs to extend to drive the clamping seat 75 to rise to the outside of the top of the dust hood 4 to facilitate the installation of the core disk. After the core disk is locked on the top of the clamping seat 75, the second hydraulic cylinder 76 is controlled to retract, so that the clamping block 77 moves inward synchronously, thereby effectively clamping the core disk.
[0026] Furthermore, the extension length of the first hydraulic cylinder 72 is effectively adjusted. The lifting seat 73 is connected to the telescopic end of the first hydraulic cylinder 72 via the connecting rod 74. The adjustment of the extension length of the first hydraulic cylinder 72 effectively controls the height of the lifting seat 73 within the connecting sleeve 71, ensuring that the welding area is at the dust suction port inside the dust suction hood 4. Subsequently, the angle of the dust suction hood 4 is adjusted according to the working environment and the welding gun position of the welding equipment. After loosening the pressure nut on the surface of the screw 5, the dust suction hood 4 can be controlled to rotate and adjust within the connecting ring 3. After reaching the appropriate position, the pressure nut is tightened to fix the position of the dust suction hood 4. An external negative pressure suction device is then connected to the suction pipe 6 of the dust suction hood 4. At this point, laser welding begins, and the motor 2 is started. The motor 2 can control the top clamping mechanism 7 to rotate slowly, thereby automatically adjusting the welding area and achieving automated welding. At the same time, the fumes containing heavy metals generated during welding are effectively absorbed and filtered.
[0027] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.
[0028] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A laser welding auxiliary clamping device for a seat adjuster, comprising a device table (1), a motor (2), a connecting ring (3), a dust extraction hood (4), a screw (5), an air extraction pipe (6), and a clamping mechanism (7), characterized in that: The motor (2) is installed at the bottom of the equipment platform (1), the connecting ring (3) is fixed to the upper surface of the equipment platform (1), the dust hood (4) is movably connected to the connecting ring (3), the screw (5) is fixedly set at the bottom outside of the dust hood (4), the air extraction pipe (6) is fixedly set at the top outside of the dust hood (4), and the clamping mechanism (7) is set at the top of the equipment platform (1). The clamping mechanism (7) includes a connecting sleeve (71), a first hydraulic cylinder (72), a lifting seat (73), a connecting rod (74), a clamping seat (75), a second hydraulic cylinder (76), and a clamping block (77). The connecting sleeve (71) is fixed to the output end of the motor (2). The first hydraulic cylinder (72) is installed on the outside of the connecting sleeve (71). The connecting rod (74) is fixedly installed on the telescopic end of the first hydraulic cylinder (72). The lifting seat (73) is clamped on the inner side of the top of the connecting sleeve (71). The clamping seat (75) is connected to the top of the lifting seat (73). The second hydraulic cylinder (76) is installed on the bottom of the clamping seat (75). The clamping block (77) is fixedly installed on the telescopic end of the second hydraulic cylinder (76).
2. The laser welding auxiliary clamping device for seat adjusters according to claim 1, characterized in that: The bottom of the clamping seat (75) is provided with an installation groove that cooperates with the second oil cylinder (76), and the bottom of the clamping seat (75) is fixedly provided with a connecting shaft for connecting with the lifting seat (73).
3. The laser welding auxiliary clamping device for seat adjusters according to claim 1, characterized in that: One end of the clamping block (77) extends through and into the bottom inner side of the clamping seat (75). The bottom of the clamping seat (75) is provided with an adjustment hole that cooperates with the clamping block (77). The clamping block (77) is provided with sliding grooves on both sides that cooperate with the inner wall of the adjustment hole.
4. The laser welding auxiliary clamping device for seat adjusters according to claim 1, characterized in that: One end of the screw (5) passes through and extends to the outside of one side of the connecting ring (3). The surface of the connecting ring (3) is provided with an adjustment groove that cooperates with the screw (5). The surface of the screw (5) is connected to a pressure nut by a thread.
5. The laser welding auxiliary clamping device for seat adjusters according to claim 1, characterized in that: The lifting seat (73) is provided with a locking tooth on the outside, and the connecting sleeve (71) is provided with a tooth groove that cooperates with it on the inside.