Tool structure for laser welding of automobile seat angle adjuster

Abstract

A tool structure for laser welding of an automobile seat angle adjuster comprises a working platform, and an overhead frame is arranged on the working platform; a shielding mechanism is clamped on the angle adjuster and is arranged on the overhead frame; the rotary table driving mechanism is arranged on the working platform, and the center position of the downward side of the rotary table is connected with the rotary table driving mechanism and is driven by the rotary table driving mechanism to rotate; the group of angle regulator lower clamping and shielding mechanisms are rotationally arranged on the rotary table; the clutch mechanism is used for being meshed with or unmeshed with the recliner lower clamping and shielding mechanism located below the recliner upper clamping and shielding mechanism in the set of recliner lower clamping and shielding mechanisms, and the clutch mechanism is arranged on the working platform; the clutch rotation driving mechanism is used for enabling the clutch mechanism to rotate in the state that the clutch mechanism is meshed with the recliner lower clamping shielding mechanism and is in transmission fit with the clutch mechanism. The method has the advantages that laser welding efficiency is guaranteed; residues and chippings are prevented from entering the automobile seat angle adjuster; and the regular and consistent effect of welding positions is ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of tooling and fixtures for automotive parts production, specifically relating to a tooling structure for laser welding of automotive seat adjusters. Background Technology

[0002] The aforementioned tooling, in a broad sense, refers to process equipment, that is, the collective term for various tools (such as fixtures, molds, and gauges) and equipment used in the product manufacturing process. Since these tools and equipment are designed and manufactured to achieve specific process objectives and solve specific process problems, their core function or purpose is to ensure product quality, improve efficiency, and reduce costs. Furthermore, because tooling is generally a non-standard product, there are neither national nor industry standards to follow, nor is there universality. Even when processing the same workpiece, different manufacturers often have significant differences in their technical means and the equipment they use. Based on factors beyond those mentioned above, tooling is usually designed and manufactured by automotive parts manufacturers themselves, while also fully considering stringent requirements such as non-interference during workpiece processing and ease of operation.

[0003] The structure and function of the aforementioned car seat adjuster are well-known in the industry and are frequently found in published Chinese patent documents. Typically, after the car seat adjuster is assembled, a closing ring needs to be installed to fix it to the outer wall of the toothed disc rim. The shape, structure, and function of the aforementioned closing ring and toothed disc can be detailed in Chinese patent application publication number CN105691250A (Car Seat Adjuster), etc. While the aforementioned methods of fixing the closing ring to the toothed disc rim can include riveting or press-fitting, the connection strength, structural stability, assembly efficiency, and rigid fit of riveting or press-fitting are far inferior to welding. Laser welding, a technique within the broader field of welding, offers several advantages for fixing the aforementioned closed ring to the rim of the gear disc. These advantages include: ensuring welding precision and quality; high energy concentration and a small heat-affected zone, effectively preventing damage to the gear disc and gear ring; high processing efficiency and consistency, with laser welding speeds reaching several meters per minute, significantly improving processing speed and adapting to large-scale production requirements; ideal cost and sustainability advantages, as laser welding eliminates the need for welding wire, achieving self-fusion welding and reducing material waste; and long laser lifespan and low failure rate; guaranteed yield, and so on. It is precisely because of these advantages, not limited to those mentioned above, that laser welding is increasingly valued by automotive parts manufacturers.

[0004] The applicant searched Chinese and foreign patent and non-patent literature, but found no technical information related to the tooling structure for laser welding of automotive seat adjusters. Therefore, the applicant carried out repeated and beneficial designs and conducted an unlimited number of simulation and deduction tests, resulting in the technical solution that will be introduced below. Utility Model Content

[0005] The objective of this invention is to provide a tooling structure for laser welding of car seat adjusters that facilitates efficient laser welding of the adjuster by a cyclical operation of feeding, welding, and removal; exposes only the welding area of ​​the adjuster to be welded while fully shielding the internal structure to prevent residue from entering the adjuster during laser welding; ensures the adjuster is in a horizontal position to guarantee the uniformity of the weld position in the circumferential direction of the adjuster; and features a simple structure and convenient operation to ensure a long service life.

[0006] The present invention achieves its objective as follows: a tooling structure for laser welding of an automotive seat adjuster includes a working platform supported on the ground by a support member, and a suspended frame mounted on the working platform; an upper clamping and protective mechanism for the adjuster, which is movably mounted on the suspended frame; a rotary table and a rotary table drive mechanism, the rotary table drive mechanism being mounted on the working platform, with the center of the downward-facing side of the rotary table connected to and driven to rotate by the rotary table drive mechanism; and a set of lower clamping and protective mechanisms for the adjuster, which are spaced at equal intervals. The system is configured to move up and down and rotate on the rotary table; a clutch mechanism is configured to engage or disengage with the lower clamping shield mechanism of the set of angle adjusters located below the upper clamping shield mechanism of the angle adjuster, and to drive the lower clamping shield mechanism of the angle adjuster to move up and down and rotate in the engaged state, the clutch mechanism being configured on the working platform at a position corresponding to the lower clamping shield mechanism of the angle adjuster; a clutch rotation drive mechanism is configured on the working platform and is in transmission cooperation with the clutch mechanism in the state of engaging the clutch mechanism with the lower clamping shield mechanism of the angle adjuster.

[0007] In a specific embodiment of this utility model, the aerial frame includes a left longitudinal arm, a right longitudinal arm, and an angle adjuster that clamps a protective mechanism mounting plate. The lower end of the left longitudinal arm is fixed to the left side of the working platform via a left longitudinal arm base, while the upper end of the left longitudinal arm extends upward. The lower end of the right longitudinal arm is fixed to the right side of the working platform via a right longitudinal arm base, while the upper end of the right longitudinal arm extends upward. The left end of the angle adjuster clamping the protective mechanism mounting plate is fixed to the rear side of the upper end of the left longitudinal arm, while the right end of the angle adjuster clamps the protective mechanism mounting plate. The upper front side of the right longitudinal arm is fixed, and a work station partition clearance cavity is formed in the lower middle part of the protective mechanism mounting plate clamped on the angle adjuster. The distance between the lower edge of the left and right ends of the protective mechanism mounting plate clamped on the angle adjuster and the work platform constitutes a free space. The protective mechanism clamped on the angle adjuster is located in the middle front side of the protective mechanism mounting plate in the length direction of the angle adjuster and corresponds to the upper middle part of the work station partition clearance cavity in the length direction. The rotary table corresponds to the work station partition clearance cavity.

[0008] In another specific embodiment of this utility model, the angle adjuster's upper clamping protective mechanism includes a cover plate, an upper clamping protective sleeve lifting cylinder, an upper clamping protective sleeve lifting cylinder support, a push plate vertical displacement guide rod, a push plate, a pair of push plate downward left limit posts, a pair of push plate downward right limit posts, and an angle adjuster upper clamping protective sleeve assembly. The cover plate is fixed to the front side of the middle part of the mounting plate of the angle adjuster's upper clamping protective mechanism along its length direction. The upper clamping protective sleeve lifting cylinder is fixed on the upper clamping protective sleeve lifting cylinder support, and the upper clamping protective sleeve lifting cylinder column of the upper clamping protective sleeve lifting cylinder extends below the horizontal plate of the upper clamping protective sleeve lifting cylinder support. The longitudinal plate of the upper clamping protective sleeve lifting cylinder support is fixed to the front side of the cover plate. There is a pair of push plate vertical displacement guide rods, which correspond to the left and right sides of the upper clamping protective sleeve lifting cylinder column, respectively. The upper ends of the pair of push plate vertical displacement guide rods are each The guide rod sleeve forms a sliding pair with the upper clamping protective sleeve lifting cylinder support. The guide rod sleeve is fixed to the upper clamping protective sleeve lifting cylinder support. The push plate is located below the horizontal plate of the upper clamping protective sleeve lifting cylinder support. The left and right ends of the push plate are fixed to the lower ends of the pair of push plate vertical displacement guide rods, respectively. The middle part of the push plate is fixed to the lower end of the upper clamping protective sleeve lifting cylinder column. The pair of push plate downward left limit posts are fixed to the left end of the push plate facing downward in a longitudinal cantilever state that is parallel to each other. Similarly, the pair of push plate downward right limit posts are fixed to the right end of the push plate facing downward in a longitudinal cantilever state that is parallel to each other. The pair of push plate downward left limit posts and the pair of push plate downward right limit posts correspond to each other and have the same height. The upper clamping protective sleeve assembly of the angle adjuster is connected to the cylinder column end step connector that extends to the lower part of the upper clamping protective sleeve lifting cylinder column at the position corresponding to the lower part of the push plate. The upper clamping protective sleeve lifting cylinder is a cylinder.

[0009] In another specific embodiment of this utility model, a pair of left blocking posts are fixed longitudinally on the rotary table below the left limiting posts corresponding to the pair of push plates, and a pair of right blocking posts are also fixed longitudinally below the right limiting posts corresponding to the pair of push plates. When the lower end faces of the pair of left limiting posts and the pair of right limiting posts contact the upper end faces of the pair of left and right blocking posts respectively, the upper clamping protective sleeve lifting cylinder... The column pushes the push plate and the angle adjuster clamping protective sleeve assembly downward to the limit; the rotary table is also provided with a workstation partition for separating the set of angle adjuster clamping protective mechanisms from each other, wherein each angle adjuster clamping protective mechanism in the set has a pair of left blocking columns and a pair of right blocking columns on each side, and the angle adjuster clamping protective mechanisms in the set are alternately positioned below the angle adjuster clamping protective mechanism.

[0010] In another specific embodiment of this utility model, the adjusting device clamping protective sleeve assembly includes an adjusting device clamping protective sleeve, an adjusting device drive component protective sleeve, an adjusting device clamping protective sleeve connecting bearing seat, and an adjusting device clamping protective sleeve connecting bearing seat cover plate. The lower part of the adjusting device clamping protective sleeve forms a truncated cone with a diameter that gradually decreases from the upper part to the lower part. In use, the truncated cone cooperates with the recessed cavity of the car seat adjusting device to clamp and protect the upward-facing side of the car seat adjusting device. The adjusting device clamping protective sleeve forms an adjusting device clamping protective sleeve cavity. A bearing seat support step ring and an adjusting device are formed within the adjusting device clamping protective sleeve cavity. The upper protective sleeve of the adjuster drive component supports a stepped ring, which is located below the bearing housing support stepped ring. The upper protective sleeve of the adjuster drive component is positioned below the clamping protective sleeve cavity on the adjuster. A support flange is formed at the upper end of the upper protective sleeve and around its perimeter. This support flange supports the upper protective sleeve support stepped ring. An adjuster drive component insertion cavity is formed at the lower part of the upper protective sleeve cavity. In use, the drive component of the car seat adjuster engages with this insertion cavity, and the clamping protective sleeve on the adjuster connects to the bearing housing support. The bearing housing is supported on the stepped ring and fixed by the adjusting device's clamping sleeve connecting bearing housing fixing screws and the bearing housing support stepped ring fixing screw holes set at intervals on the bearing housing support stepped ring. The upper part of the adjusting device's clamping sleeve connecting bearing housing protrudes from the adjusting device's clamping sleeve cavity, and an upper clamping sleeve connecting bearing is arranged at the center of the adjusting device's clamping sleeve connecting bearing housing. The adjusting device's clamping sleeve connecting bearing housing cover plate covers the upper surface of the adjusting device's clamping sleeve connecting bearing housing and is fixed by cover plate fixing screws to the cover plate fixing screw holes preset on the adjusting device's clamping sleeve connecting bearing housing. The center of the adjusting device's clamping sleeve connecting bearing housing cover plate is... The position is configured with a cover plate through hole. The cylinder column end stepped connector extends downward through the cover plate through hole and the bearing hole of the upper clamping protective sleeve connecting bearing to the lower part of the angle adjuster clamping protective sleeve connecting bearing seat. The cylinder column end stepped connector is fixed to the lower end face of the cylinder column end stepped connector by the screw of the cylinder column end stepped connector, so that the cylinder column end stepped connector is connected to the angle adjuster clamping protective sleeve connecting bearing seat. During the process of the rotary table driving mechanism set on the working platform driving the rotary table to rotate in a rhythmic manner, each angle adjuster lower clamping protective mechanism in the set of angle adjuster lower clamping protective mechanisms alternately corresponds to the lower part of the angle adjuster upper clamping protective sleeve assembly.The clutch mechanism engages or disengages only with the lower clamping shielding mechanism of the angle adjuster, which corresponds to the area below the clamping shielding sleeve on the angle adjuster. In the engaged state, the clutch rotation drive mechanism rotates the lower clamping shielding mechanism via the clutch mechanism.

[0011] In another specific embodiment of this utility model, the rotary table drive mechanism includes a rotary table drive motor and a rotary table drive reduction gearbox. The rotary table drive motor is fixed to the rotary table drive reduction gearbox in a horizontal position and is drively connected to the rotary table drive reduction gearbox. The rotary table drive reduction gearbox, together with the rotary table drive motor, is mounted on a rotary table drive reduction gearbox support. The rotary table drive reduction gearbox shaft faces upward. The rotary table drive reduction gearbox support is fixed to the working platform. The center position of the downward-facing side of the rotary table is fixed to the rotary table drive reduction gearbox shaft.

[0012] In a further specific embodiment of this utility model, a cylindrical hole is provided on the rotary table for each of the set of angle adjuster lower clamping protective mechanisms; each of the set of angle adjuster lower clamping protective mechanisms includes an angle adjuster lower clamping protective sleeve, an angle adjuster lower clamping protective sleeve connecting shaft support bearing seat, an angle adjuster lower clamping protective sleeve connecting shaft, and a clutch sleeve. The lower part of the angle adjuster lower clamping protective sleeve connecting shaft support bearing seat forms a bearing seat column, and a pair of corresponding connecting shaft mating bearings are provided in the bearing seat column cavity of the bearing seat column. Furthermore, the lower end of the bearing housing column protrudes from the lower surface of the rotary table. A bearing housing flange is extended at the upper end of the bearing housing supporting the shaft of the adjusting device. This bearing housing flange is fixed to the upper surface of the rotary table by bearing housing flange screws. The adjusting device lower clamping sleeve corresponds to the upper part of the bearing housing supporting the shaft of the adjusting device. This adjusting device lower clamping sleeve forms an upper open cavity. A circumferential feature is formed on the upper part of the cavity wall of this cavity, around the cavity wall, for... The lower support step of the car seat adjuster provides support for the lower part of the adjuster. A journal fitting hole is formed at the center of the bottom wall of the cavity of the lower clamping sleeve of the adjuster. The middle part of the connecting shaft of the lower clamping sleeve of the adjuster is rotatably engaged with the pair of connecting shaft bearings. The lower end protrudes from the lower plane of the bearing seat column. The upper end of the connecting shaft of the lower clamping sleeve of the adjuster forms a journal, which is rotatably engaged with the journal fitting hole. An upper upper plate fixing screw is fixed to the upper part of the journal and located within the cavity of the lower clamping sleeve of the adjuster. A limiting disc is formed at the lower part of the journal and on the side of the bottom wall of the cavity that clamps the protective sleeve cavity of the angle adjuster, opposite to the side of the cavity that clamps the protective sleeve cavity of the angle adjuster. The center of the top wall of the clutch sleeve is fixed to the lower end of the bearing seat column, and clutch sleeve meshing teeth are formed around the lower edge of the clutch sleeve. The clutch mechanism engages or disengages with the clutch sleeve meshing teeth of the clutch sleeve, and in the engaged state, the clutch mechanism pushes the clutch sleeve upward and the clutch rotation drive mechanism drives the clutch mechanism and the clutch sleeve to rotate.

[0013] In a further specific embodiment of this utility model, a clearance opening is provided on the working platform at a position corresponding to the clutch mechanism; the clutch mechanism includes a free-floating support plate, a clutch wheel drive cylinder, a splined bushing, a driven gear, a splined shaft, a buffer spring support plate, a clutch wheel, a buffer spring support plate limiting sleeve, and a set of buffer springs. The free-floating support plate is positioned above the working platform. The front end of the free-floating support plate is fixed to the upper end of the front support of the free-floating support plate by a front fixing screw, and the lower end of the front support of the free-floating support plate is fixed to the working platform by a screw. The rear end of the free-floating support plate is connected to the free-floating support plate... The rear fixing screw is fixed to the upper end of the rear support of the elevated support plate, and the lower end of the rear support of the elevated support plate is fixed to the working platform by screws. The front support of the elevated support plate is located in front of the clearance opening of the working platform, while the rear support of the elevated support plate is located behind the clearance opening of the working platform. The space between the upper plane of the elevated support plate and the clearance opening of the working platform forms the elevated cavity of the support plate. The clutch wheel drive cylinder is fixed to the clutch wheel drive cylinder fixing plate at a position corresponding to below the clearance opening of the working platform with its cylinder column facing upwards. The clutch wheel drive cylinder fixing plate is fixedly connected to the lower end of a set of connecting columns arranged in a grid pattern. The upper end of the splined shaft is fixedly connected to the elevated support plate. The splined shaft sleeve is rotatably engaged with the splined shaft sleeve bearing seat through a splined shaft sleeve bearing. The splined shaft sleeve bearing seat is fixed to the rear end of the elevated support plate through a splined shaft sleeve bearing seat fixing screw. A splined shaft sleeve extension plate is formed on the upper part of the splined shaft sleeve, and a splined shaft sliding engagement hole is formed at the center position of the splined shaft sleeve in the height direction. The driven gear is fixed to the splined shaft sleeve extension plate through a driven gear fixing screw at the position corresponding to the splined shaft sleeve extension plate screw hole opened on the splined shaft sleeve extension plate. The upper end of the splined shaft is splinedly engaged with the clutch wheel spline hole formed at the center position of the clutch wheel. The lower end of the splined shaft is splined from top to bottom. The buffer spring support plate extends through the central hole of the buffer spring support plate, the spline hole of the limiting sleeve of the buffer spring support plate, the central hole of the driven gear of the driven gear, and the upper and lower sliding fit hole of the spline shaft, and extends to the lower part of the spline shaft sleeve. It is connected to the clutch wheel drive cylinder column through the spline shaft rotatable connecting seat. The buffer spring support plate is connected to the lower side of the clutch wheel through a set of spaced buffer spring support plate connecting screws. On the upper side of the clutch wheel, there is a clutch wheel clutch tooth ring that is radially distributed for engaging or disengaging with the clutch sleeve meshing teeth.A buffer spring support plate limiting sleeve is fixed to the splined shaft by locking screws at a position below the buffer spring support plate. A snap ring groove is formed on the splined shaft, above the buffer spring support plate limiting sleeve. The buffer spring support plate is positioned on the splined shaft between the snap ring groove and the buffer spring support plate limiting sleeve, and is limited by a snap ring fitted into the snap ring groove. A set of buffer springs is distributed at intervals, with the upper end of this set of buffer springs supported in a clutch wheel spring support recess formed on the lower surface of the clutch wheel, and the lower end of this set of buffer springs supported in a buffer spring support plate recess formed on the upper surface of the buffer spring support plate. The clutch rotation drive mechanism meshes with the driven gear; the clutch wheel drive cylinder is a cylinder.

[0014] In yet another specific embodiment of this utility model, the clutch rotation drive mechanism includes a drive gear drive motor, a drive gear drive reduction gearbox, and a drive gear. The drive gear drive motor is fixed to the drive gear drive reduction gearbox with its motor shaft facing upward and engages in transmission with the drive gear drive reduction gearbox. The drive gear drive reduction gearbox, together with the drive gear drive motor, is fixed to the lower-facing side of the front end of the elevated support plate. The drive gear drive reduction gearbox shaft extends above the elevated support plate. The drive gear, positioned above the elevated support plate, is fixed to the top surface of the drive gear drive reduction gearbox shaft by a drive gear fixing screw and meshes with the driven gear.

[0015] In another specific embodiment of this utility model, a rotary table anti-deformation support mechanism is provided on the working platform at the middle left and middle right positions corresponding to the aerial support plate. The rotary table anti-deformation support mechanism includes a roller frame fixing seat, a roller frame and a roller. The roller frame fixing seat is fixed to the working platform in a longitudinal state. The lower end of the roller frame is vertically adjusted to be connected to the upper end of the roller frame fixing seat, while the upper end of the roller frame extends upward. The roller is rotatably mounted on the upper end of the roller frame through a roller shaft and the roller contacts the downward-facing surface of the edge of the rotary table.

[0016] The technical advantages of this utility model are as follows: The rotary table can be driven to rotate by a rotary table drive mechanism; the automotive seat adjuster, which is to be welded to the gear disc by a robotic arm, can be placed under the adjuster's clamping and protective mechanism; the workpiece is clamped and the non-welding parts are simultaneously protected by the clutch mechanism pushing the lower clamping and protective mechanism upwards and cooperating with the upper clamping and protective mechanism on the adjuster; furthermore, the clutch rotation drive mechanism can drive the clutch mechanism to rotate, and the clutch mechanism, through the lower clamping and protective mechanism of the adjuster, causes the workpiece to be clamped by the upper clamping and protective mechanism on the adjuster. The workpiece rotates so that the laser-automatic welding robot can weld the closed ring to the toothed disc, thus enabling a cyclical operation of feeding, welding, and removal, ensuring laser welding efficiency. Since laser welding is performed under the combined protection of the upper and lower clamping and shielding mechanisms of the angle adjuster, it prevents any residue or debris that may be generated during laser welding from entering the car seat angle adjuster. Because the workpiece between the upper and lower clamping and shielding mechanisms of the angle adjuster is always kept in the same horizontal position, it ensures consistent weld alignment. The simple overall structure and convenient operation ensure a long service life. Attached Figure Description

[0017] Figure 1 This is a structural diagram of an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 An exploded three-dimensional structural diagram of the angle adjuster clamping the protective mechanism assembly shown in the diagram.

[0019] Figure 3 for Figure 1 The detailed structural diagram of the rotary table and its drive mechanism is shown.

[0020] Figure 4 for Figure 1 The diagram shows a detailed structural diagram of the angle adjuster clamping the protective mechanism.

[0021] Figure 5 for Figure 1 The detailed structural diagram of the clutch mechanism and the clutch rotation drive mechanism is shown.

[0022] Figure 6 for Figure 1 and Figure 5 The diagram shows a detailed structural diagram of the splined shaft mating with the driven gear and the splined shaft sleeve. Detailed Implementation

[0023] In order to better understand the technical essence and beneficial effects of this utility model, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the solution of this utility model. Any formal but not substantive equivalent transformations made based on the concept of this utility model should be considered within the scope of the technical solution of this utility model.

[0024] In the following description, all directional or positional concepts involving up, down, left, right, front, and back are based on the current position. Figure 1 The location and state of the object are taken as examples, and therefore should not be construed as a special limitation on the technical solution provided by this utility model.

[0025] Please see Figure 1 The diagram shows a work platform 1, which, in use, is supported on the ground by support members such as support legs, support frames, or other similar support components, and a cantilever frame 11 is provided on the work platform 1; a protective mechanism 2 clamped on an angle adjuster is shown, which is movably mounted on the aforementioned cantilever frame 11; a rotary table 3 and a rotary table drive mechanism 4 are shown, the rotary table drive mechanism 4 is provided on the aforementioned work platform 1, the center of the downward-facing side of the rotary table 3 is connected to the rotary table drive mechanism 4 and is driven to rotate by the rotary table drive mechanism 4; a set of protective mechanisms clamped on the lower part of the angle adjuster 5 is shown, which move up and down at equal intervals. Furthermore, it is rotatably mounted on the aforementioned rotary table 3; a clutch mechanism 6 is shown for engaging or disengaging with the lower clamping shielding mechanism 5 of the aforementioned set of lower clamping shielding mechanisms 5 located below the upper clamping shielding mechanism 2 of the lower clamping shielding mechanism 5 ...

[0026] Under the operation of the aforementioned rotary table drive mechanism 4, the rotary table 3 connected to it rotates, thereby causing a set of angle adjusters with equal intervals on the upward-facing side of the rotary table 3 to clamp the protective mechanism 5 in a relay manner between the angle adjuster clamping the protective mechanism 2 and the clutch mechanism 6. Figure 4When the car seat adjuster 8 shown is positioned below the protective mechanism 2 while being held by the lower clamping mechanism 5, it indicates that the previously welded car seat adjuster 8 has been rotated to the removal position for automatic removal by a robotic arm (not shown). Simultaneously, under the operation of the robotic arm, the next car seat adjuster 8 awaiting welding is pre-picked and placed on another lower clamping mechanism 5 to replace the one still in the welding process. Figure 1 The shown state is a lower clamping shielding mechanism 5 located in front of the rotary table 3. It can be seen that, as a preferred technical means, this embodiment is arranged around the circumference of the rotary table 3 with each pair of adjacent lower clamping shielding mechanisms 5 spaced 120° apart (with the center of the rotary table 3 as the center). That is to say, three lower clamping shielding mechanisms 5 are set on the rotary table 3 to meet the uninterrupted relay cycle requirements of the welding station, the removal station, and the station for placing the workpiece to be welded (i.e., placing the car seat adjuster 8).

[0027] The aforementioned aerial platform 11 includes a left longitudinal arm 111, a right longitudinal arm 112, and an angle adjuster that clamps a protective mechanism mounting plate 113. The lower end of the left longitudinal arm 111 is fixed to the left side of the aforementioned work platform 1 via a left longitudinal arm base 1111 and by means of screws, while the upper end of the left longitudinal arm 111 extends upward. The lower end of the right longitudinal arm 112 is fixed to the right side of the work platform 1 via a right longitudinal arm base 1121 and by means of screws, while the upper end of the right longitudinal arm 112 extends upward. The left end of the angle adjuster that clamps the protective mechanism mounting plate 113 is fixed to the rear side of the upper end of the left longitudinal arm 111, while the angle adjuster clamps the protective mechanism mounting plate 113. The right end of 3 is fixed to the upper front side of the right longitudinal arm 112. A work station partition clearance cavity 1131 is formed in the lower middle part of the protective mechanism mounting plate 113 clamped on the angle adjuster. The distance between the lower edge of the left and right ends of the protective mechanism mounting plate 113 clamped on the angle adjuster and the aforementioned work platform 1 is respectively formed as a free space 1132. The protective mechanism 2 clamped on the angle adjuster is located in the middle front side of the length direction of the protective mechanism mounting plate 113 clamped on the angle adjuster and corresponds to the middle upper part of the length direction of the aforementioned work station partition clearance cavity 1131. The aforementioned rotary table 3 is located inside the aforementioned work station partition clearance cavity 1131.

[0028] Please stay tuned. Figure 1The aforementioned angle adjuster clamping protective sleeve mechanism 2 includes a cover plate 21, an upper clamping protective sleeve lifting cylinder 22, an upper clamping protective sleeve lifting cylinder support 23, a push plate up and down displacement guide rod 24, a push plate 25, a pair of push plate downward left limit posts 26a, a pair of push plate downward right limit posts 26b, and an angle adjuster upper clamping protective sleeve assembly 27. Both ends of the cover plate 21 are fixed to the front side of the middle section of the aforementioned angle adjuster upper clamping protective sleeve mounting plate 113 along its length direction via cover plate fixing screws 211. The upper clamping protective sleeve lifting cylinder 22 is fixed to the shape... The upper clamping protective sleeve lifting cylinder support 23 is shaped like a ┐, and the upper clamping protective sleeve lifting cylinder column 221 of the upper clamping protective sleeve lifting cylinder 22 extends to the lower part of the horizontal plate of the upper clamping protective sleeve lifting cylinder support 23. The longitudinal plate of the upper clamping protective sleeve lifting cylinder support 23 is fixed to the front side of the aforementioned cover plate 21. There is a pair of push plate up and down displacement guide rods 24, which correspond to the left and right sides of the upper clamping protective sleeve lifting cylinder column 221, respectively. The upper ends of the pair of push plate up and down displacement guide rods 24 are respectively connected to the guide rod sleeve. 241 forms a sliding pair. The guide rod sleeve 241 is fixed to the aforementioned support seat 23 of the upper clamping protective sleeve lifting cylinder. The push plate 25 is located below the aforementioned horizontal plate of the upper clamping protective sleeve lifting cylinder support seat 23. The left and right ends of the push plate 25 are respectively fixed to the lower ends of the aforementioned pair of push plate up and down displacement guide rods 24, while the middle part of the push plate 25 is fixed to the lower end of the aforementioned upper clamping protective sleeve lifting cylinder column 221. The pair of push plate downward left limit columns 26a are fixed to the downward-facing side of the left end of the push plate 25 in a longitudinal cantilever state that is parallel to each other. A pair of right limit posts 26b for the downward movement of the push plate are also fixed to the right end of the push plate 25 facing downward in a longitudinal cantilever state that is parallel to each other. A pair of left limit posts 26a for the downward movement of the push plate and a pair of right limit posts 26b for the downward movement of the push plate are both corresponding to each other and have the same height. The upper clamping protective sleeve assembly 27 of the angle adjuster is connected to the upper clamping protective sleeve lifting cylinder 221 extending to the lower part of the push plate 25 at the position below the aforementioned push plate 25. In this embodiment, the aforementioned upper clamping protective sleeve lifting cylinder 22 is a cylinder.

[0029] The applicant needs to explain that: since the shape of the upper clamping protective sleeve lifting cylinder support seat 23 is the ┐ shape mentioned above, the horizontal plate mentioned above is the upper transverse plate, and the vertical plate mentioned above is the vertical plate that is integral with the transverse plate.

[0030] Depend on Figure 1As shown, a pair of left blocking posts 31 are fixed longitudinally on the aforementioned rotary table 3, below the aforementioned pair of left limiting posts 26a corresponding to the downward movement of the push plates. Similarly, a pair of right blocking posts 32 are fixed longitudinally below the aforementioned pair of right limiting posts 26b corresponding to the downward movement of the push plates. When the lower end faces of the aforementioned pair of left limiting posts 26a and right limiting posts 26b contact the upper end faces of the pair of left blocking posts 31 and right blocking posts 32, respectively, the aforementioned upper clamping protective sleeve lifting cylinder 221 pushes forward. The downward movement of the push plate 25 and the aforementioned angle adjuster clamping protective sleeve assembly 27 reaches its limit; a workstation partition 33 is also provided on the aforementioned rotary table 3 to separate the aforementioned set of angle adjuster clamping protective mechanisms 5 from each other, wherein each of the angle adjuster clamping protective mechanisms 5 in the set of angle adjuster clamping protective mechanisms 5 has a pair of left blocking posts 31 and a pair of right blocking posts 32 on each side, and the angle adjuster clamping protective mechanisms in the aforementioned set of angle adjuster clamping protective mechanisms 5 are alternately positioned below the aforementioned angle adjuster clamping protective mechanism 2.

[0031] Depend on Figure 1 and Figure 3 As shown, the aforementioned workstation partition 33 is fixed to the rotary table 3. Its obvious function is to prevent the welding of the car seat adjuster 8 at one workstation from affecting the other two workstations, such as preventing welding debris from splashing onto the workpieces at other workstations, namely the car seat adjuster 8.

[0032] Please see Figure 2 And combined Figure 1 and Figure 4The aforementioned angle adjuster clamping cover assembly 27 includes an angle adjuster clamping cover 271, an angle adjuster drive cover 272, an angle adjuster clamping cover connecting bearing seat 273, and an angle adjuster clamping cover connecting bearing seat cover plate 274. The lower part of the angle adjuster clamping cover 271 forms a truncated cone 2711 with a diameter that gradually decreases from the top to the bottom. In use, the truncated cone 2711 cooperates with the recessed cavity 81 of the car seat angle adjuster 8 to clamp and protect the upward-facing side of the car seat angle adjuster 8. The angle adjuster clamping cover 271 forms an angle adjuster clamping cover cavity 2712. Within 2712, there is a bearing housing support step ring 27121 and an upper protective sleeve support step ring 27122 for the angle adjuster drive component. The upper protective sleeve support step ring 27122 for the angle adjuster drive component is located below the bearing housing support step ring 27121. The upper protective sleeve 272 for the angle adjuster drive component is positioned below the clamping cavity 2712 on the angle adjuster. A support flange edge 2721 is formed at the upper end of the upper protective sleeve 272 for the angle adjuster drive component and around its perimeter. This support flange edge 2721 is supported on the aforementioned upper protective sleeve support step ring 27122 for the angle adjuster drive component and provides upper protective sleeve for the angle adjuster drive component. The lower part of the cavity 2722 forms an adjuster drive insertion cavity 27221. In use, the drive member 82 of the car seat adjuster 8 cooperates with the adjuster drive insertion cavity 27221. The adjusting sleeve clamping bearing seat 273 is supported on the aforementioned bearing seat support step ring 27121 and is fixed by the adjusting sleeve clamping bearing seat fixing screw 2731 and the bearing seat support step ring fixing screw hole 27123 provided at intervals on the bearing seat support step ring 27121. The upper part of the adjusting sleeve clamping bearing seat 273 protrudes from the adjusting sleeve clamping cavity 2712 and clamps the adjusting sleeve clamping bearing seat 273. A clamping sleeve connecting bearing 2732 is provided at the center of the angle adjuster. The clamping sleeve connecting bearing seat cover plate 274 covers the upper surface of the clamping sleeve connecting bearing seat 273 of the angle adjuster and is fixed to the cover plate fixing screw hole 2733 on the clamping sleeve connecting bearing seat 273 of the angle adjuster by cover plate fixing screw 2741. A cover plate through hole 2742 is formed at the center of the clamping sleeve connecting bearing seat cover plate 2742. The aforementioned cylinder rod end stepped connector 2211 extends downward through the cover plate through hole 2742 and the bearing hole 27321 of the clamping sleeve connecting bearing 2732 to the bottom of the clamping sleeve connecting bearing seat 273 of the angle adjuster.The cylinder column end step connector 2211 is fixed to the lower end face of the cylinder column end step connector 2211 by the cylinder column end step connector screw 22111, thereby connecting the cylinder column end step connector 2211 to the upper clamping sleeve connecting bearing seat 273 of the angle adjuster; during the process of the aforementioned rotary table drive mechanism 4, which is set on the aforementioned working platform 1, driving the aforementioned rotary table 3 to rotate in a rhythmic manner, each of the aforementioned set of lower clamping sleeves 5 of the angle adjuster alternately corresponds to the lower part of the upper clamping sleeve 271 of the aforementioned upper clamping sleeve assembly 27 of the angle adjuster; the aforementioned clutch mechanism 6 only engages or disengages with the lower clamping sleeves 5 of the angle adjuster corresponding to the lower part of the upper clamping sleeve 271 of the aforementioned angle adjuster, and in the engaged state, the aforementioned clutch rotation drive mechanism 7 drives the lower clamping sleeves 5 of the angle adjuster to rotate through the clutch mechanism 6.

[0033] Please see Figure 3 And combined Figure 1 The aforementioned rotary table drive mechanism 4 includes a rotary table drive motor 41 and a rotary table drive reduction gearbox 42. The rotary table drive motor 41 is fixed to the rotary table drive reduction gearbox 42 in a horizontal position and is connected to the rotary table drive reduction gearbox 42 in a transmission connection. The rotary table drive reduction gearbox 42, together with the rotary table drive motor 41, is mounted on a rotary table drive reduction gearbox support 421. The rotary table drive reduction gearbox shaft 422 of the rotary table drive reduction gearbox 42 faces upward. The aforementioned rotary table drive reduction gearbox support 421 is fixed on the aforementioned working platform 1. The center position of the downward-facing side of the aforementioned rotary table 3 is fixed to the aforementioned rotary table drive reduction gearbox shaft 422.

[0034] When the rotary table drive motor 41 is working, it drives the rotary table drive reduction gearbox 42. The rotary table drive reduction gearbox shaft 422 of the rotary table drive reduction gearbox 42 drives the rotary table 3 fixed thereto to rotate. When the lower clamping protective mechanism 5 of the car seat adjuster 8, which is to be welded to the gear plate, corresponds to the aforementioned upper clamping protective mechanism 2 of the adjuster, the rotary table drive motor 41 stops working, and the rotary table 3 stops rotating. At this time, the upper clamping protective sleeve lifting cylinder 22 of the structure system of the upper clamping protective mechanism 2 of the adjuster is working, causing the upper clamping protective sleeve lifting cylinder column 221 of the upper clamping protective sleeve lifting cylinder 22 to extend downward, that is, out of the cylinder body. Due to the action of the push plate 25 and the lower end of the upper clamping protective sleeve lifting cylinder column 221, the cylinder column step 2212 ( Figure 3The part shown is fixed, so the upper clamping protective sleeve lifting cylinder 221 pushes the push plate 25 downward. Since the entire upper clamping protective sleeve assembly 27 of the angle adjuster is actually fixedly connected to the lower end face of the upper clamping protective sleeve lifting cylinder 221 through the cylinder end step connecting head screw 22111, the upper clamping protective sleeve assembly 27 of the angle adjuster also moves downward at the same time as the aforementioned push plate 25 moves downward. The aforementioned upper clamping protective sleeve 271 of the angle adjuster protects the recessed cavity 81 of the aforementioned car seat angle adjuster 8 in the clamped state, and the downward-facing area of ​​the car seat angle adjuster 8 is clamped and protected by the lower clamping protective mechanism 5 of the angle adjuster, which will be further described below. The pause time between the aforementioned rotary table drive motor 41 stopping and starting work is basically consistent with the time taken for the laser welding robot to weld a workpiece, depending on the electrical controller used to control whether the rotary table drive motor 41 is working and is electrically connected. Furthermore, the aforementioned rotary table drive motor 41 is preferably a servo motor.

[0035] Please see Figure 4 And combined Figure 1On the aforementioned rotary table 3, a cylindrical hole 34 is provided for each of the set of angle adjuster clamping protective mechanisms 5. Each of the aforementioned set of angle adjuster clamping protective mechanisms 5 includes an angle adjuster clamping protective sleeve 51, an angle adjuster clamping protective sleeve connecting shaft support bearing seat 52, an angle adjuster clamping protective sleeve connecting shaft 53, and a clutch sleeve 54. The lower part of the angle adjuster clamping protective sleeve connecting shaft support bearing seat 52 forms a bearing seat column 521. A pair of connecting shaft mating bearings 52111 corresponding to each other are provided in the bearing seat column cavity 5211 of the bearing seat column 521, and the lower end of the bearing seat column 521 protrudes from the aforementioned rotary table. On the lower surface of the rotary table 3, a bearing seat flange 522 is extended at the upper end of the bearing seat 52 supporting the shaft of the lower clamping sleeve of the angle adjuster. The bearing seat flange 522 is fixed to the upper surface of the rotary table 3 by bearing seat flange screws 5221. The lower clamping sleeve 51 of the angle adjuster corresponds to the upper part of the bearing seat 52 supporting the shaft of the lower clamping sleeve of the angle adjuster. The lower clamping sleeve 51 of the angle adjuster forms an upper open cavity 511. On the upper part of the cavity wall of the cavity 511 and around the circumference of the cavity wall, there is an angle adjuster lower support for supporting the lower part of the aforementioned car seat angle adjuster 8. A journal fitting hole 5112 is formed at the center of the bottom wall of the cavity 511 of the lower clamping sleeve of the angle adjuster. The middle part of the connecting shaft 53 of the lower clamping sleeve of the angle adjuster is rotatably engaged with the aforementioned pair of connecting shafts and bearings 52111. The lower end protrudes from the lower plane of the aforementioned bearing seat column 521. The upper end of the connecting shaft 53 of the lower clamping sleeve of the angle adjuster forms a journal 531, which is rotatably engaged with the aforementioned journal fitting hole 5112. An upper limit plate 5311 is fixed to the upper part of the journal 531 and located inside the cavity 511 of the lower clamping sleeve of the angle adjuster by an upper limit plate fixing screw 53111. A lower limiting plate 5312 is formed at the lower part of the journal 531 and on the side of the bottom wall of the cavity corresponding to the lower clamping protective sleeve cavity 511 of the angle adjuster that is opposite to the lower clamping protective sleeve cavity 511 of the angle adjuster. The center of the top wall of the clutch sleeve 54 is fixed to the lower end of the bearing seat column 521, and clutch sleeve meshing teeth 541 are formed around the lower edge of the clutch sleeve 54. The aforementioned clutch mechanism 6 engages or disengages with the aforementioned clutch sleeve meshing teeth 541 of the aforementioned clutch sleeve 54. In the engaged state, the clutch mechanism 6 pushes the clutch sleeve 54 upward and the aforementioned clutch rotation drive mechanism 7 drives the clutch mechanism 6 together with the clutch sleeve 54 to rotate.

[0036] Please see Figure 5 and Figure 6 And combined Figure 1A clearance opening 12 is provided on the aforementioned working platform 1 at a position corresponding to the aforementioned clutch mechanism 6. The aforementioned clutch mechanism 6 includes a free-floating support plate 61, a clutch wheel drive cylinder 62, a splined bushing 63, a driven gear 64, a splined shaft 65, a buffer spring support plate 66, a clutch wheel 67, a buffer spring support plate limiting sleeve 68, and a set of buffer springs 69. The free-floating support plate 61 is set in a state of being suspended above the aforementioned working platform 1. The front end of the free-floating support plate 61 is fixed to the upper end of the front support 611 of the free-floating support plate by a front fixing screw. The lower end of the front support 611 of the free-floating support plate is fixed to the aforementioned working platform 1 by a screw. The rear end of the free-floating support plate 61 is fixed to the aforementioned working platform 1 by a rear fixing screw. The upper end of the rear support 612 of the elevated support plate is fixed, and the lower end of the rear support 612 of the elevated support plate is fixed to the aforementioned working platform 1 by screws. The aforementioned front support 611 of the elevated support plate is located in front of the clearance opening 12 of the working platform, while the rear support 612 of the elevated support plate is located behind the clearance opening 12 of the working platform. The space between the upper plane of the elevated support plate 61 and the clearance opening 12 of the working platform forms the elevated cavity 613 of the support plate. The clutch wheel drive cylinder 62 is fixed to the clutch wheel drive cylinder fixing plate 622 with its clutch wheel drive cylinder column 621 facing upward at a position corresponding to the lower part of the clearance opening 12 of the working platform. The clutch wheel drive cylinder fixing plate 622 and a set of connecting columns 6221 arranged in a grid pattern are connected to the lower part of the clutch wheel drive cylinder fixing plate 622. The upper end of a set of connecting posts 6221 is fixedly connected to the aforementioned elevated support plate 61. The splined bushing 63 is rotatably engaged with the splined bushing bearing seat 631 via a splined bushing bearing 6311. The splined bushing bearing seat 631 is fixed to the rear end of the aforementioned elevated support plate 61 via splined bushing bearing seat fixing screws. A splined bushing expansion disk 632 is formed on the upper part of the splined bushing 63, and a splined shaft sliding engagement hole 633 is formed at the center of the height direction of the splined bushing 63. The driven gear 64 is fixed to the splined bushing expansion disk 632 via a driven gear fixing screw 641 at a position corresponding to the splined bushing expansion disk screw hole 6321 opened on the splined bushing expansion disk 632. The upper end of the splined shaft 65 is connected to... The clutch wheel spline hole 671, located at the center of the clutch wheel 67, is splined. The lower end of the spline shaft 65 passes from top to bottom through the buffer spring support plate center hole 661, the buffer spring support plate limit sleeve spline hole 681, the driven gear center hole 642, located at the center of the driven gear 64, and the spline shaft sliding fit hole 633, extending to the bottom of the spline shaft sleeve 63. It is connected to the aforementioned clutch wheel drive cylinder 621 via the spline shaft rotatable connecting seat 651. The buffer spring support plate 66, located below the clutch wheel 67, is connected to the downward-facing side of the clutch wheel 67 via a set of spaced buffer spring support plate connecting screws 662.On the upward-facing side of the clutch wheel 67, there are clutch wheel clutch tooth rings 672 arranged radially for engaging or disengaging with the aforementioned clutch sleeve engagement teeth 541; the buffer spring support plate limiting sleeve 68 is fixed to the aforementioned spline shaft 65 by locking screws 682 at a position below the buffer spring support plate 66, and a retaining ring groove 652 is formed on the spline shaft 65 and above the buffer spring support plate limiting sleeve 68, the aforementioned buffer spring support plate 66 is positioned on the spline shaft 65 between the retaining ring groove 652 and the buffer spring. The support plate limiting sleeves 68 are separated by retaining rings 6521 embedded in retaining ring grooves 652. A set of buffer springs 69 are distributed at intervals, with the upper ends of the set of buffer springs 69 supported in clutch wheel spring support recesses formed on the lower surface of clutch wheel 67, and the lower ends of the set of buffer springs 69 supported in buffer spring support disc recesses 663 formed on the upper surface of buffer spring support disc 66. The aforementioned clutch rotation drive mechanism 7 meshes with the aforementioned driven gear 64. In this embodiment, the aforementioned clutch wheel drive cylinder 62 is a cylinder.

[0037] In this invention, the positive significance of the aforementioned set of buffer springs 69 is to absorb energy, preventing damage to the clutch wheel 67, clutch sleeve 54, and rotary table 3 due to impact. Specifically, it can prevent damage caused by excessive meshing force on the clutch wheel clutch tooth ring 672 (i.e., clutch wheel clutch teeth) and clutch sleeve meshing teeth 541 due to the operation of the clutch wheel drive cylinder 62.

[0038] See you later Figure 5 The aforementioned clutch rotation drive mechanism 7 includes a drive gear drive motor 71, a drive gear drive reduction gearbox 72, and a drive gear 73. The drive gear drive motor 71 is fixed to the drive gear drive reduction gearbox 72 with its motor shaft facing upward and engages in transmission with the drive gear drive reduction gearbox 72. The drive gear drive reduction gearbox 72, together with the drive gear drive motor 71, is fixed to the lower front end of the aforementioned elevated support plate 61. The drive gear drive reduction gearbox shaft 721 of the drive gear drive reduction gearbox 72 extends above the elevated support plate 61. The drive gear 73 is fixed to the top surface of the drive gear drive reduction gearbox shaft 721 above the elevated support plate 61 by a drive gear fixing screw 731 and meshes with the aforementioned driven gear 64.

[0039] The applicant needs to clarify that since the air-support plate 61 of the clutch mechanism 6 is mounted on the work platform 1 through the front and rear supports 611 and 612 of the air-support plate, and since the main gear drive reduction gearbox 72 of the clutch rotation drive mechanism 7 is mounted on the air-support plate 61 along with the active gear drive motor 71, this does not contradict the applicant's statement above that the clutch rotation drive mechanism 7 is mounted on the worktable 1 along with the clutch mechanism 6.

[0040] When one of the three angle adjusters clamps the protective mechanism 5, corresponding to the aforementioned angle adjuster clamping the protective mechanism 2 and the clutch mechanism 6, it indicates that the robot arm has already placed the car seat angle adjuster 8 on it in the previous station for laser welding. Before laser welding, the clutch mechanism 6 engages the clutch wheel 672 on the upward-facing side of its structural system with the clutch sleeve engagement teeth 541 of the clutch sleeve 54.

[0041] The engagement process between the clutch wheel 67 and the clutch sleeve 54 is as follows: The clutch wheel drives the actuating cylinder 62 to work, and the clutch wheel drives the actuating cylinder pin 621 to extend upward, i.e., outward from the cylinder body, pushing the spline shaft 65 to move upward. The spline shaft 65 then moves the buffer spring support plate 66 and the clutch wheel 67 upward, thereby establishing an engagement relationship between the clutch wheel clutch gear ring 672 on the clutch wheel 67 and the clutch sleeve engagement teeth 541 of the clutch sleeve 54. Furthermore, because the clutch sleeve 54 moves upward through the lower clamp of the angle adjuster holding the protective sleeve connecting shaft 53, and the lower clamp of the angle adjuster holding the protective sleeve connecting shaft 53 drives the aforementioned lower clamp of the angle adjuster holding the protective sleeve 51 to also move upward accordingly. Therefore, with the cooperation of the aforementioned angle adjuster clamping the protective sleeve assembly 27 and the angle adjuster clamping the protective sleeve 271, the workpiece to be welded, namely the car seat angle adjuster 8, is clamped between the upper and lower clamping protective sleeves 271 and 51 of the angle adjuster, and except for the area to be laser welded, the other areas are in a good shielded or protected state.

[0042] With the aforementioned car seat adjuster 8 in a well-clamped and protected state, the drive gear drive motor 71 of the clutch rotation drive mechanism 7 operates, driving the drive gear drive reduction gearbox 72. The drive gear drive reduction gearbox shaft 721 drives the drive gear 73, which meshes with the driven gear 64. The rotation of the driven gear 64 driven by the drive gear 73 causes the spline shaft 65 to rotate accordingly, thereby rotating the buffer spring support plate 66 and the clutch wheel 67. Ultimately, the rotation of the clutch wheel 67 causes the car seat adjuster 8 to rotate accordingly. In the rotating state, the corresponding... Figure 1A YAG (laser) welding robot, positioned in front but not shown in the figure, welds the closed loop of the rotating car seat adjuster 8 to the edge of the gear plate. After welding, the drive gear motor 71, also controlled by the aforementioned electrical controller, stops working, and the clutch mechanism 6 and the clamping shielding mechanism 2 on the adjuster reverse their operation, releasing the clamp on the welded car seat adjuster 8. Then, under the operation of the rotary drive mechanism 4, the rotary table 3 rotates, aligning the next car seat adjuster 8 to be welded, which is placed on the clamping shielding mechanism 5 under the adjuster, below the clamping shielding assembly 27 on the adjuster, and repeating the aforementioned process to perform laser welding. Since the concepts of the closed loop, gear plate, and drive component 8 of the aforementioned car seat adjuster 8, as well as their corresponding operating mechanisms, are prior art, for example, see CN105691250A (Car Seat Adjuster), but not limited to the example, the applicant will not elaborate further.

[0043] The applicant should also explain that since the spline shaft 65 can push the clutch sleeve 54 to move upward, and since the driven gear 64 can drive the spline shaft 65 to rotate, and then the spline shaft 65 drives the clutch wheel 67 to rotate, and the clutch wheel 67 drives the clutch sleeve 54 that meshes with it to rotate, this does not contradict the applicant's statement above that a set of angle adjusters clamps the protective mechanism 5 to move up and down and rotate.

[0044] Preferably, by Figure 1 As shown, a rotary table anti-deformation support mechanism 9 is provided on the aforementioned working platform 1, and at the positions corresponding to the middle left and middle right sides of the aforementioned airborne support plate 61. The rotary table anti-deformation support mechanism 9 includes a roller frame fixing seat 91, a roller frame 92, and a roller 93. The roller frame fixing seat 91 is fixed to the aforementioned working platform 1 in a longitudinal state. The lower end of the roller frame 92 is vertically adjusted and connected to the upper end of the roller frame fixing seat 91, while the upper end of the roller frame 92 extends upward. The roller 93 is rotatably mounted on the upper end of the roller frame 92 through a roller shaft 931, and the roller 93 contacts the downward-facing side surface of the aforementioned rotary table 3 edge portion. Since the roller 93 can both guide and support the downward-facing edge of the rotary table 3, it can prevent deformation or even collapse of the rotary table 3 in stress-bearing areas, such as the parts of the rotary table 3 corresponding to the clutch mechanism 6 or the parts corresponding to the clutch sleeve 54 that clamps the protective mechanism 5 under the angle adjuster.

[0045] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the above technical effect column.

Claims

1. A tooling structure for laser welding of an automotive seat adjuster, characterized in that: The system includes a work platform (1) supported on the ground by a support member in use, and a jacking frame (11) installed on the work platform (1); a jacking device clamping a protective mechanism (2) which is movably mounted on the jacking frame (11); a rotary table (3) and a rotary table drive mechanism (4) installed on the work platform (1); the center position of the downward-facing side of the rotary table (3) is aligned with the center position of the rotary table (1). A drive mechanism (4) is connected to and driven to rotate by a rotary table drive mechanism (4); a set of angle adjuster lower clamping protective mechanisms (5) are arranged on the rotary table (3) in a state of equal distance intervals, moving up and down and rotating; a lower angle adjuster clamping protective mechanism (5) is used to engage or disengage with the lower angle adjuster clamping protective mechanism (5) located below the upper angle adjuster clamping protective mechanism (2) in the set of angle adjuster lower clamping protective mechanisms (5), and drives the lower angle adjuster clamping protective mechanism (5) in the engaged state. A clutch mechanism (6) that moves up and down and rotates is provided on the working platform (1) at a position below the lower clamping shield mechanism (5) of the angle adjuster; a clutch rotation drive mechanism (7) for rotating the clutch mechanism (6) in a state of engagement with the lower clamping shield mechanism (5) of the angle adjuster is provided on the working platform (1) and is in transmission cooperation with the clutch mechanism (6).

2. The jig structure for laser welding of an automobile seat recliner according to claim 1, characterized by: The elevated frame (11) includes a left longitudinal arm (111), a right longitudinal arm (112), and an angle adjuster that clamps the protective mechanism mounting plate (113). The lower end of the left longitudinal arm (111) is fixed to the left side of the working platform (1) via a left longitudinal arm base (1111), while the upper end of the left longitudinal arm (111) extends upward. The lower end of the right longitudinal arm (112) is fixed to the right side of the working platform (1) via a right longitudinal arm base (1121), while the upper end of the right longitudinal arm (112) extends upward. The left end of the angle adjuster that clamps the protective mechanism mounting plate (113) is fixed to the rear side of the upper end of the left longitudinal arm (111), while the right end of the angle adjuster that clamps the protective mechanism mounting plate (113) is fixed to the rear side of the upper end of the left longitudinal arm (111). The end is fixed to the upper front side of the right longitudinal arm (112). A work station partition clearance cavity (1131) is formed in the lower middle part of the angle adjuster clamping the protective mechanism mounting plate (113). The distance between the lower edge of the left end and the right end of the angle adjuster clamping the protective mechanism mounting plate (113) and the work platform (1) is respectively formed as a free space (1132). The angle adjuster clamping the protective mechanism (2) is set in the middle front side of the length direction of the angle adjuster clamping the protective mechanism mounting plate (113) and corresponds to the middle above the length direction of the work station partition clearance cavity (1131). The rotary table (3) corresponds to the work station partition clearance cavity (1131).

3. The tool structure for laser welding of an automobile seat recliner according to claim 2, characterized by: The upper clamping shielding mechanism of the angle adjuster comprises a cover plate (21), an upper clamping shielding sleeve lifting cylinder (22), an upper clamping shielding sleeve lifting cylinder support seat (23), a push plate up-down displacement guide rod (24), a push plate (25), a pair of push plate downward left limiting columns (26a), a pair of push plate downward right limiting columns (26b), and an angle adjuster upper clamping shielding sleeve assembly (27). The cover plate (21) is fixed to the front side of the middle part of the length direction of the installation plate (113) of the upper clamping shielding mechanism of the angle adjuster. The upper clamping shielding sleeve lifting cylinder (22) is fixed to the upper clamping shielding sleeve lifting cylinder support seat (23), and the upper clamping shielding sleeve lifting cylinder column (221) of the upper clamping shielding sleeve lifting cylinder (22) extends below the horizontal plate of the upper clamping shielding sleeve lifting cylinder support seat (23), and the vertical plate of the upper clamping shielding sleeve lifting cylinder support seat (23) is fixed to the front side of the cover plate (21). The push plate up-down displacement guide rod (24) has a pair of left and right sides corresponding to the upper clamping shielding sleeve lifting cylinder column (221), and the upper ends of the pair of push plate up-down displacement guide rods (24) are respectively connected to the guide rod sleeves (241) in sliding pairs. The guide rod sleeves (241) are fixed to the upper clamping shielding sleeve lifting cylinder support seat (23). The push plate (25) is located below the horizontal plate of the upper clamping shielding sleeve lifting cylinder support seat (23). The left and right ends of the push plate (25) are respectively fixed to the lower ends of the pair of push plate up-down displacement guide rods (24), and the middle part of the push plate (25) is fixed to the lower end of the upper clamping shielding sleeve lifting cylinder column (221). The pair of push plate downward left limiting columns (26a) are fixed to the left end of the push plate (25) in a vertical cantilever state, and the pair of push plate downward right limiting columns (26b) are fixed to the right end of the push plate (25) in a vertical cantilever state. The pair of push plate downward left limiting columns (26a) and the pair of push plate downward right limiting columns (26b) are corresponding and have the same height. The angle adjuster upper clamping shielding sleeve assembly (27) is connected to the cylinder column end step connector (2211) of the upper clamping shielding sleeve lifting cylinder column (221) extending below the push plate (25). The upper clamping shielding sleeve lifting cylinder (22) is a gas cylinder.

4. The tool structure for laser welding of an automobile seat recliner according to claim 3, characterized by: A pair of left blocking columns (31) are fixed in longitudinal state on the rotating table (3) and below the position corresponding to the pair of push plate descending left limiting columns (26a), and a pair of right blocking columns (32) are also fixed in longitudinal state below the position corresponding to the pair of push plate descending right limiting columns (26b), when the lower end faces of the pair of push plate descending left limiting columns (26a) and the pair of push plate descending right limiting columns (26b) respectively contact the upper end faces of the pair of left blocking columns (31) and the pair of right blocking columns (32), the extent of the push plate (25) and the angle adjuster upper clamping shield lifting cylinder (221) pushing the angle adjuster upper clamping shield assembly (27) descending reaches the limit; the rotating table (3) is also provided with a work station partition plate (33) for spacing the group of angle adjuster lower clamping shield mechanisms (5) from each other, wherein each side of each angle adjuster lower clamping shield mechanism (5) in the group of angle adjuster lower clamping shield mechanisms (5) has a pair of left blocking columns (31) and a pair of right blocking columns (32), and each angle adjuster lower clamping shield mechanism in the group of angle adjuster lower clamping shield mechanisms (5) is in alternate state corresponding to below the angle adjuster upper clamping shield mechanism (2).

5. The tool structure for laser welding of an automobile seat recliner according to claim 4, characterized by: The upper clamping shield assembly (27) of the angle adjuster comprises an upper clamping shield (271), an upper drive shield (272), an upper clamping shield connecting bearing seat (273), and an upper clamping shield connecting bearing seat cover plate (274). The lower part of the upper clamping shield (271) is provided with a conical frustum (2711) with a diameter gradually decreasing from the upper part to the lower part. In the use state, the conical frustum (2711) cooperates with the upper recess cavity (81) of the angle adjuster of the automobile seat (8) to clamp and shield the upper side of the angle adjuster of the automobile seat (8). The upper clamping shield (271) is provided with an upper clamping shield cavity (2712). The upper clamping shield cavity (2712) is provided with a bearing seat supporting step ring (27121) and an upper drive shield supporting step ring (27122). The upper drive shield supporting step ring (27122) is located below the bearing seat supporting step ring (27121). The upper drive shield (272) is arranged below the upper clamping shield cavity (2712). The upper end of the upper drive shield (272) and the periphery of the upper drive shield (272) are provided with a supporting flange (2721). The supporting flange (2721) is supported on the upper drive shield supporting step ring (27122). The lower part of the upper drive shield cavity (2722) of the upper drive shield (272) is provided with an angle adjuster drive probe cavity (27221). In the use state, the drive (82) of the angle adjuster of the automobile seat (8) cooperates with the angle adjuster drive probe cavity (27221). The upper clamping shield connecting bearing seat (273) is supported on the bearing seat supporting step ring (27121) and fixed by the bearing seat supporting step ring fixing screw hole (27123) provided on the bearing seat supporting step ring (27121) and the upper clamping shield connecting bearing seat fixing screw (2731). The upper part of the upper clamping shield connecting bearing seat (273) protrudes from the upper clamping shield cavity (2712). An upper clamping shield connecting bearing (2732) is arranged at the central position of the upper clamping shield connecting bearing seat (273). The upper clamping shield connecting bearing seat cover plate (274) covers the upper surface of the upper clamping shield connecting bearing seat (273) and is fixed by the cover plate fixing screw (2741) and the cover plate fixing screw hole (2733) provided on the upper clamping shield connecting bearing seat (273). The central position of the upper clamping shield connecting bearing seat cover plate (274) is provided with a cover plate through hole (2742).The cylinder end step connector (2211) extends downward through the cover plate through hole (2742) and the bearing hole (27321) of the upper clamping shield sleeve connecting bearing (2732) to below the upper clamping shield sleeve connecting bearing seat (273) of the angle adjuster, and the cylinder end step connector (2211) is connected with the upper clamping shield sleeve connecting bearing seat (273) of the angle adjuster by the fixation of the cylinder end step connector screw (22111) and the lower end surface of the cylinder end step connector (2211); in the process of rotating the rotary table (3) in a rhythmic manner by the rotary table driving mechanism (4) arranged on the working platform (1), each angle adjuster lower clamping shielding mechanism (5) in the set of angle adjuster lower clamping shielding mechanisms (5) alternately corresponds to below the angle adjuster upper clamping shielding sleeve (271) of the angle adjuster upper clamping shielding sleeve assembly (27); the clutch mechanism (6) only engages or disengages with the angle adjuster lower clamping shielding mechanism (5) corresponding to below the angle adjuster upper clamping shielding sleeve (271), and in the engaged state, the angle adjuster lower clamping shielding mechanism (5) is driven to rotate by the clutch mechanism (6) through the clutch rotary driving mechanism (7).

6. The tool structure for laser welding of an automobile seat recliner according to claim 5, characterized by: The rotating table driving mechanism (4) comprises a rotating table driving motor (41) and a rotating table driving reduction box (42), the rotating table driving motor (41) is fixed and drivingly connected with the rotating table driving reduction box (42) in horizontal lying state, the rotating table driving reduction box (42) is arranged on the rotating table driving reduction box support seat (421) together with the rotating table driving motor (41), the rotating table driving reduction box shaft (422) of the rotating table driving reduction box (42) faces upward, the rotating table driving reduction box support seat (421) is fixed on the work platform (1), and the center position of the side of the rotating table (3) facing downward is fixed with the rotating table driving reduction box shaft (422).

7. The tool structure for laser welding of an automobile seat recliner according to claim 5, characterized by: On the rotary table (3) and corresponding to a group of angle adjuster lower clamping shielding mechanism (5) each opening a column hole (34); The group of angle adjuster lower clamping shielding mechanism (5) each includes angle adjuster lower clamping shielding sleeve (51), angle adjuster lower clamping shielding sleeve connecting shaft bearing seat (52), angle adjuster lower clamping shielding sleeve connecting shaft (53) and clutch cover (54), the lower part of angle adjuster lower clamping shielding sleeve connecting shaft bearing seat (52) is provided with a bearing seat column (521), a pair of upper and lower corresponding connecting shaft matching bearings (52111) are arranged in the bearing seat column cavity (5211) of the bearing seat column (521), and the lower end of the bearing seat column (521) protrudes from the lower surface of the rotary table (3), the upper end of the angle adjuster lower clamping shielding sleeve connecting shaft bearing seat (52) is expanded to form a bearing seat flange (522), and the bearing seat flange (522) is fixed to the upper surface of the rotary table (3) by bearing seat flange screws (5221), the angle adjuster lower clamping shielding sleeve (51) corresponds to the upper part of the angle adjuster lower clamping shielding sleeve connecting shaft bearing seat (52), the angle adjuster lower clamping shielding sleeve (51) is provided with an upper open angle adjuster lower clamping shielding sleeve cavity (511), an angle adjuster lower support step (5111) for supporting the lower part of the automobile seat angle adjuster (8) is formed in the upper part of the cavity wall of the angle adjuster lower clamping shielding sleeve cavity (511) and around the circumferential direction of the cavity wall, a shaft neck matching hole (5112) is formed in the central position of the cavity bottom wall of the angle adjuster lower clamping shielding sleeve cavity (511), the middle part of the angle adjuster lower clamping shielding sleeve connecting shaft (53) is rotationally matched with the pair of connecting shaft matching bearings (52111), the lower end of the angle adjuster lower clamping shielding sleeve connecting shaft (53) protrudes from the lower plane of the bearing seat column (521), and the upper end of the angle adjuster lower clamping shielding sleeve connecting shaft (53) is provided with a shaft neck (531), which is rotationally matched with the shaft neck matching hole (5112), an upper limiting disc (5311) is fixed to the upper part of the shaft neck (531) and located in the angle adjuster lower clamping shielding sleeve cavity (511) by upper limiting disc fixing screws (53111), and a lower limiting disc (5312) is formed in the lower part of the shaft neck (531) and corresponds to the side of the cavity bottom wall of the angle adjuster lower clamping shielding sleeve cavity (511) opposite to the angle adjuster lower clamping shielding sleeve cavity (511), the top wall of the clutch cover (54) is fixed to the lower end of the bearing seat column (521), and clutch cover engaging teeth (541) are formed around the lower edge of the clutch cover (54); The clutch mechanism (6) is engaged or disengaged with the clutch cover engaging teeth (541) of the clutch cover (54), and in the engaged state, the clutch cover (54) is pushed upward by the clutch mechanism (6), and the clutch mechanism (6) is driven to rotate together with the clutch cover (54) by the clutch rotation driving mechanism (7).

8. The tool structure for laser welding of an automobile seat recliner according to claim 7, characterized by: The working platform (1) is provided with a working platform accommodation opening (12) at a position corresponding to the clutch mechanism (6); the clutch mechanism (6) comprises an empty support plate (61), a clutch wheel driving action cylinder (62), a spline shaft sleeve (63), a driven gear (64), a spline shaft (65), a buffer spring support disc (66), a clutch wheel (67), a buffer spring support disc limiting sleeve (68) and a set of buffer springs (69); the empty support plate (61) is arranged in a state of being empty above the working platform (1), the front end of the empty support plate (61) is fixed to the upper end of an empty support plate front support (611) through an empty support plate front fixing screw, the lower end of the empty support plate front support (611) is fixed to the working platform (1) through a screw, the rear end of the empty support plate (61) is fixed to the upper end of an empty support plate rear support (612) through an empty support plate rear fixing screw, the lower end of the empty support plate rear support (612) is fixed to the working platform (1) through a screw, wherein the empty support plate front support (611) is located in front of the working platform accommodation opening (12), the empty support plate rear support (612) is located behind the working platform accommodation opening (12), and the space between the empty support plate (61) and the upper plane of the working platform accommodation opening (12) forms a support plate empty cavity (613); the clutch wheel driving action cylinder (62) is fixed to a clutch wheel driving action cylinder fixing plate (622) in a state of having its clutch wheel driving action cylinder column (621) facing upward at a position below the working platform accommodation opening (12), the clutch wheel driving action cylinder fixing plate (622) is fixedly connected to the lower ends of a set of connection columns (6221) distributed in a cross shape, the upper ends of the set of connection columns (6221) are fixedly connected to the empty support plate (61), the spline shaft sleeve (63) is rotationally matched with a spline shaft sleeve bearing (631) through a spline shaft sleeve bearing (6311), the spline shaft sleeve bearing (631) is fixed to the rear end of the empty support plate (61) through a spline shaft sleeve bearing fixing screw, a spline shaft sleeve expansion disc (632) is formed on the upper portion of the spline shaft sleeve (63), and a spline shaft upper and lower sliding fit hole (633) is formed at the central position of the height direction of the spline shaft sleeve (63), the driven gear (64) is fixed to the spline shaft sleeve expansion disc (632) at a position corresponding to a spline shaft sleeve expansion disc screw hole (6321) formed on the spline shaft sleeve expansion disc (632) through a driven gear fixing screw (641), the upper end of the spline shaft (65) is spline-fitted with a clutch wheel spline hole (671) formed at the central position of the clutch wheel (67),The lower end of the spline shaft (65) passes through the buffer spring support disc center hole (661) formed in the center of the buffer spring support disc (66), the limiting sleeve spline hole (681) formed in the center of the buffer spring support disc limiting sleeve (68), the driven gear center hole (642) formed in the central position of the driven gear (64) and the spline shaft up and down sliding fit hole (633) extending to the lower side of the spline shaft sleeve (63) in sequence from top to bottom, and is connected with the clutch wheel driving action cylinder (621) through the spline shaft rotation connection seat (651). The buffer spring support disc (66) is connected with the downward side of the clutch wheel (67) through a set of interval distributed buffer spring support disc connecting screws (662) at the position corresponding to the lower side of the clutch wheel (67), and the clutch wheel clutch tooth ring (672) is formed on the upward side of the clutch wheel (67) and is distributed in a radial state for engaging or disengaging with the clutch sleeve engagement teeth (541). The buffer spring support disc limiting sleeve (68) is fixed on the spline shaft (65) through the locking screw (682) at the position below the buffer spring support disc (66), and a snap spring groove (652) is formed on the spline shaft (65) and above the buffer spring support disc limiting sleeve (68). The position of the buffer spring support disc (66) on the spline shaft (65) is between the snap spring groove (652) and the buffer spring support disc limiting sleeve (68) and is limited by the snap spring (6521) embedded in the snap spring groove (652). A set of buffer springs (69) are distributed in an interval state, the upper end of the set of buffer springs (69) is supported in the clutch wheel spring support pit formed in the lower surface of the clutch wheel (67), and the lower end of the set of buffer springs (69) is supported in the buffer spring support disc pit (663) formed in the upper surface of the buffer spring support disc (66). The clutch rotation driving mechanism (7) is engaged with the driven gear (64). The clutch wheel driving action cylinder (62) is a gas cylinder.

9. The tool structure for laser welding of an automobile seat recliner according to claim 8, characterized by: The clutch rotating drive mechanism (7) comprises a driving gear motor (71), a driving gear reduction box (72) and a driving gear (73). The driving gear motor (71) is fixed to the driving gear reduction box (72) and is in transmission with the driving gear reduction box (72) with the motor shaft upward. The driving gear reduction box (72) is fixed to the front end of the empty support plate (61) downward with the driving gear motor (71). The driving gear reduction box shaft (721) of the driving gear reduction box (72) extends above the empty support plate (61). The driving gear (73) is fixed to the top end of the driving gear reduction box shaft (721) above the empty support plate (61) by the driving gear fixing screw (731) and is in mesh with the driven gear (64).

10. The tool structure for laser welding of an automobile seat recliner according to claim 8, characterized by: A rotating table anti-deformation support mechanism (9) is arranged on the working platform (1) and at the left and right middle positions of the empty support plate (61). The rotating table anti-deformation support mechanism (9) comprises a roller frame fixing seat (91), a roller frame (92) and a roller (93). The roller frame fixing seat (91) is fixed to the working platform (1) longitudinally. The lower end of the roller frame (92) is connected to the upper end of the roller frame fixing seat (91) up and down. The upper end of the roller frame (92) extends upward. The roller (93) is rotatably arranged on the upper end of the roller frame (92) by the roller shaft (931) and is in contact with the downward surface of the edge of the rotating table (3).

Images