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] The present invention belongs to the technical field of tooling fixtures for automobile parts production, and particularly relates to a tooling structure for laser welding of an automobile seat adjuster. Background Art

[0002] The general meaning of tooling refers to process equipment, that is, the general term for various tools (such as fixtures, molds, and inspection tools) and equipment used in the product production process. Since tools and equipment are designed and manufactured to achieve specific process goals and solve specific process problems, their core function or purpose is to ensure product quality, improve efficiency, and reduce costs. Even for the processing of the same workpiece, there are often significant differences in technical means and equipment used among different manufacturers. Due to not being limited to the foregoing factors, tooling is usually designed and manufactured by automobile parts manufacturers themselves, and strict requirements such as no interference during workpiece processing and convenient operation must be fully considered.

[0003] Regarding the structure and function of the aforementioned automobile seat adjuster, it is well-known in the industry and can be found in a large number of published Chinese patent documents. Usually, after the assembly of the automobile seat adjuster is completed, it is necessary to fix the closing ring to the outer wall of the disk edge of the gear disk. The shape, structure, and function of the aforementioned closing ring and gear disk can be seen in detail in Chinese Patent Application Publication No. CN105691250A (Automobile Seat Adjuster), etc. Although the aforementioned method of fixing the closing ring to the disk edge of the gear disk can adopt riveting fixation or press-fitting fixation, the connection strength, structural stability, assembly efficiency, and rigid matching effect of the two are far inferior to welding. Since laser welding in the welding field has at least the following advantages in welding the closing ring to the disk edge of the gear disk: it can ensure welding accuracy and welding quality, the energy concentration of laser welding is high, the heat-affected zone is small, and it can effectively avoid damaging the gear disk and gear ring; the processing efficiency is high and the consistency is good. For example, the laser welding speed can reach several meters per minute, which can significantly improve the processing rhythm and meet the requirements of large-scale production; it has ideal cost and sustainability advantages. Laser welding realizes self-fusion welding of materials without using welding wires, can reduce material waste, and the laser has a long service life and low failure rate; the yield rate can be guaranteed, etc. It is precisely because laser welding has the aforementioned advantages that it is increasingly valued by automobile parts manufacturers.

[0004] The applicant has searched for Chinese and foreign patents and non-patent documents, but has not detected technical information related to the tooling structure for laser welding of an automobile seat adjuster. Therefore, the applicant has carried out repeated and beneficial designs and carried out non-limited simulation deduction tests, and formed the technical solution to be introduced below. Summary of the Invention

[0005] The object of the present invention is to provide a laser welding tooling structure for an automotive seat adjuster, which helps to well reflect the laser welding efficiency of the adjuster in a cyclic operation mode of feeding, welding and picking, is conducive to exposing only the welding area of the adjuster to be welded and fully shielding the internal structure to avoid the possible residue generated during laser welding from entering the inside of the adjuster, is beneficial to keeping the adjuster in a horizontal state to ensure the regular consistency effect of the welding position in the circumferential direction of the adjuster, and is convenient to reflect the simple structure and convenient operation to ensure a long service life.

[0006] The object of the present invention is achieved as follows: A laser welding tooling structure for an automotive seat adjuster includes a working platform, which is supported on the floor by a support member in the use state, and a suspension frame is arranged on the working platform; a clamping and shielding mechanism on the adjuster, which is arranged on the suspension frame to move up and down; a turntable and a turntable driving mechanism, the turntable driving mechanism is arranged on the working platform, the center position of the downward-facing side of the turntable is connected to the turntable driving mechanism and is driven by the turntable driving mechanism to rotate; a set of clamping and shielding mechanisms under the adjuster, which are arranged on the turntable to move up and down and rotate at equal distance intervals; a clutch mechanism for engaging or disengaging with the clamping and shielding mechanism under the adjuster located below the clamping and shielding mechanism on the adjuster and driving the clamping and shielding mechanism under the adjuster to move up and down and rotate in the engaged state, the clutch mechanism is arranged on the working platform at a position corresponding to the lower part of the clamping and shielding mechanism under the adjuster; a clutch rotation driving mechanism for rotating the clutch mechanism in the state of engaging with the clamping and shielding mechanism under the adjuster, the clutch rotation driving mechanism is arranged on the working platform and is in transmission cooperation with the clutch mechanism.

[0007] In a specific embodiment of the present invention, the overhead rack includes a left longitudinal arm, a right longitudinal arm, and a clamping and shielding mechanism mounting plate on the angle adjuster. The lower end of the left longitudinal arm is fixed to the left side of the working platform through the left longitudinal arm base, and 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 through the right longitudinal arm base, and the upper end of the right longitudinal arm extends upward. The left end of the clamping and shielding mechanism mounting plate on the angle adjuster is fixed to the rear side of the upper end of the left longitudinal arm, and the right end of the clamping and shielding mechanism mounting plate on the angle adjuster is fixed to the front side of the upper end of the right longitudinal arm. A working station partition accommodating cavity is formed in the middle of the lower part of the clamping and shielding mechanism mounting plate on the angle adjuster, and the distances between the lower edges of the left end and the right end of the clamping and shielding mechanism mounting plate on the angle adjuster and the working platform respectively form overhead spaces. The clamping and shielding mechanism on the angle adjuster is arranged on the front side of the middle part in the length direction of the clamping and shielding mechanism mounting plate on the angle adjuster and corresponds to the upper part of the middle part in the length direction of the working station partition accommodating cavity. The rotary table corresponds to the working station partition accommodating cavity.

[0008] In another specific embodiment of the present invention, the clamping and shielding mechanism on the angle adjuster includes a cover plate, an upper clamping and shielding sleeve lifting cylinder, an upper clamping and shielding sleeve lifting cylinder support seat, a push plate vertical displacement guide rod, a push plate, a pair of left push plate downward limit posts, a pair of right push plate downward limit posts, and a clamping and shielding sleeve assembly on the angle adjuster. The cover plate is fixed to the front side of the middle part in the length direction of the clamping and shielding mechanism mounting plate on the angle adjuster. The upper clamping and shielding sleeve lifting cylinder is fixed to the upper clamping and shielding sleeve lifting cylinder support seat, and the upper clamping and shielding sleeve lifting cylinder column of this upper clamping and shielding sleeve lifting cylinder extends to the lower side of the horizontal plate of the upper clamping and shielding sleeve lifting cylinder support seat. The longitudinal plate of this upper clamping and shielding sleeve lifting cylinder support seat is fixed to the front side of the cover plate. There are a pair of push plate vertical displacement guide rods, which respectively correspond to the left side and the right side of the upper clamping and shielding sleeve lifting cylinder column. The upper ends of this pair of push plate vertical displacement guide rods respectively form a sliding pair with the guide rod sleeves, and the guide rod sleeves are fixed to the upper clamping and shielding sleeve lifting cylinder support seat. The push plate is located below the horizontal plate of the upper clamping and shielding sleeve lifting cylinder support seat. The left end and the right end of this push plate are respectively fixed to the lower ends of this pair of push plate vertical displacement guide rods, and the middle part of the push plate is fixed to the lower end of the upper clamping and shielding sleeve lifting cylinder column. A pair of left push plate downward limit posts are fixed to the downward-facing side of the left end of the push plate in a longitudinal cantilever state parallel to each other front and back, and a pair of right push plate downward limit posts are also fixed to the downward-facing side of the right end of the push plate in a longitudinal cantilever state parallel to each other front and back. The pair of left push plate downward limit posts and the pair of right push plate downward limit posts correspond to each other and have the same height. The clamping and shielding sleeve assembly on the angle adjuster is connected to the end step joint of the cylinder column where the upper clamping and shielding sleeve lifting cylinder column extends below the push plate at the position corresponding to the lower part of the push plate. The upper clamping and shielding sleeve lifting cylinder is a cylinder.

[0009] In yet another specific embodiment of the present invention, a pair of left blocking columns are longitudinally fixed on the turntable and at a position below the corresponding pair of downward-travel left limit columns of the push plates, and a pair of right blocking columns are similarly longitudinally fixed at a position below the corresponding pair of downward-travel right limit columns of the push plates. When the lower end faces of the pair of downward-travel left limit columns of the push plates and the pair of downward-travel right limit columns of the push plates respectively contact the upper end faces of the pair of left blocking columns and the pair of right blocking columns, the degree to which the upper clamping shield sheath lifting cylinder column pushes the push plates and the angle adjuster upper clamping shield sheath assembly downward reaches the limit; a station partition for separating each of the group of angle adjuster lower clamping shield mechanisms from each other is further provided on the turntable. Among them, each angle adjuster lower clamping shield mechanism in the group of angle adjuster lower clamping shield mechanisms has a pair of left blocking columns and a pair of right blocking columns on both sides, and the respective angle adjuster lower clamping shield mechanisms in the group of angle adjuster lower clamping shield mechanisms are alternately corresponding to the lower part of the angle adjuster upper clamping shield mechanism.

[0010] In yet another specific embodiment of the present invention, the angle adjuster upper clamping shield assembly on the angle adjuster includes an angle adjuster upper clamping shield, an upper shield on the angle adjuster driving member, an angle adjuster upper clamping shield connecting bearing seat, and an angle adjuster upper clamping shield connecting bearing seat cover plate. The lower part of the angle adjuster upper clamping shield is formed with a frustum of a cone whose diameter gradually decreases from the upper part to the lower part. In the use state, the frustum of the cone cooperates with the concave cavity on the upper side of the angle adjuster of the vehicle seat adjuster to clamp and shield the upper side of the vehicle seat angle adjuster. The angle adjuster upper clamping shield is formed with an angle adjuster upper clamping shield cavity. In this angle adjuster upper clamping shield cavity, a bearing seat support step ring and a support step ring for the upper shield on the angle adjuster driving member are formed. The support step ring for the upper shield on the angle adjuster driving member is located below the bearing seat support step ring. The upper shield on the angle adjuster driving member is arranged below the angle adjuster upper clamping shield cavity. At the upper end of the upper shield on the angle adjuster driving member and surrounding the periphery of the upper shield on the angle adjuster driving member, a support flange is formed. The support flange is supported on the support step ring for the upper shield on the angle adjuster driving member. And in the lower part of the cavity of the upper shield on the angle adjuster driving member of the upper shield on the angle adjuster driving member, a cavity for the angle adjuster driving member to penetrate is formed. In the use state, the driving member of the vehicle seat angle adjuster cooperates with the cavity for the angle adjuster driving member to penetrate. The angle adjuster upper clamping shield connecting bearing seat is supported on the bearing seat support step ring and fixed by angle adjuster upper clamping shield connecting bearing seat fixing screws and bearing seat support step ring fixing screw holes arranged at intervals on the bearing seat support step ring. The upper part of the angle adjuster upper clamping shield connecting bearing seat protrudes out of the angle adjuster upper clamping shield cavity. And at the central position of the angle adjuster upper clamping shield connecting bearing seat, an upper clamping shield connecting bearing is arranged. The angle adjuster upper clamping shield connecting bearing seat cover plate covers the upper surface of the angle adjuster upper clamping shield connecting bearing seat and is fixed by cover plate fixing screws and cover plate fixing screw holes preset on the angle adjuster upper clamping shield connecting bearing seat. At the central position of the angle adjuster upper clamping shield connecting bearing seat cover plate, a cover plate through hole is formed. The cylinder rod end step connecting head extends downward through the cover plate through hole and the bearing hole of the upper clamping shield connecting bearing to the lower part of the angle adjuster upper clamping shield connecting bearing seat. The cylinder rod end step connecting head is connected to the angle adjuster upper clamping shield connecting bearing seat by fixing the cylinder rod end step connecting head screw to the lower end face of the cylinder rod end step connecting head; During the process that the rotary table driving mechanism arranged on the working platform drives the rotary table to rotate rhythmically, each angle adjuster lower clamping and shielding mechanism in the group of angle adjuster lower clamping and shielding mechanisms is alternately corresponding to the lower part of the angle adjuster upper clamping shield of the angle adjuster upper clamping shield assembly;The clutch mechanism only engages or disengages with the lower clamping and shielding mechanism of the angle adjuster corresponding to the lower part of the shielding sheath clamped on the angle adjuster, and in the engaged state, the lower clamping and shielding mechanism of the angle adjuster is driven to rotate by the clutch rotation driving mechanism through the clutch mechanism.

[0011] In still another specific embodiment of the present invention, the turntable driving mechanism includes a turntable driving motor and a turntable driving reduction gearbox. The turntable driving motor is fixed to the turntable driving reduction gearbox in a horizontally lying state and is in transmission connection with the turntable driving reduction gearbox. The turntable driving reduction gearbox together with the turntable driving motor is arranged on the turntable driving reduction gearbox support seat. The turntable driving reduction gearbox shaft of the turntable driving reduction gearbox faces upward. The turntable driving reduction gearbox support seat is fixed on the working platform, and the center position of the downward-facing side of the turntable is fixed to the turntable driving reduction gearbox shaft.

[0012] In a further specific embodiment of the present invention, a cylinder hole is provided on the turntable and corresponding to a set of angle adjuster lower clamping shielding mechanisms; each of the set of angle adjuster lower clamping shielding mechanisms includes an angle adjuster lower clamping shielding sleeve, an angle adjuster lower clamping shielding sleeve connecting shaft support bearing seat, an angle adjuster lower clamping shielding sleeve connecting shaft, and a clutch sleeve. The lower part of the angle adjuster lower clamping shielding sleeve connecting shaft support bearing seat forms a bearing seat cylinder. A pair of upper and lower corresponding connecting shaft mating bearings are arranged in the bearing seat cylinder cavity of the bearing seat cylinder, and the lower end of the bearing seat cylinder protrudes out of the lower surface of the turntable. The upper end of the angle adjuster lower clamping shielding sleeve connecting shaft support bearing seat is expanded with a bearing seat flange. The bearing seat flange is fixed to the upper surface of the turntable by bearing seat flange screws. The angle adjuster lower clamping shielding sleeve corresponds to the upper part of the angle adjuster lower clamping shielding sleeve connecting shaft support bearing seat. The angle adjuster lower clamping shielding sleeve forms an angle adjuster lower clamping shielding sleeve cavity with an open upper part. An angle adjuster lower support step for supporting the lower part of the vehicle seat angle adjuster is formed on the upper part of the cavity wall of the angle adjuster lower clamping shielding sleeve cavity and around the circumferential direction of the cavity wall. A journal mating hole is provided at the central position of the bottom wall of the angle adjuster lower clamping shielding sleeve cavity. The middle part of the angle adjuster lower clamping shielding sleeve connecting shaft is rotationally mated with the pair of connecting shaft mating bearings, and the lower end protrudes out of the lower plane of the bearing seat cylinder. The upper end of the angle adjuster lower clamping shielding sleeve connecting shaft forms a journal, and the journal is rotationally mated with the journal mating hole. An upper limit disk is fixed by an upper limit disk fixing screw at the upper part of the journal and within the angle adjuster lower clamping shielding sleeve cavity. A lower limit disk is formed at the lower part of the journal and at a position corresponding to the side of the bottom wall of the angle adjuster lower clamping shielding sleeve cavity facing away from the angle adjuster lower clamping shielding sleeve cavity. The central position of the top wall of the clutch sleeve is fixed to the lower end of the bearing seat cylinder, and clutch sleeve meshing teeth are formed around the lower edge of the clutch sleeve; the clutch mechanism meshes or disengages from the clutch sleeve meshing teeth of the clutch sleeve, and in the meshing state, the clutch sleeve is pushed upward by the clutch mechanism, and the clutch mechanism together with the clutch sleeve is driven to rotate by the clutch rotation driving mechanism.

[0013] In a further specific embodiment of the present invention, a working platform relief opening is provided on the working platform and at a position corresponding to the clutch mechanism; the clutch mechanism includes a levitating support plate, a clutch wheel driving cylinder, a spline shaft sleeve, a driven gear, a spline shaft, a buffer spring support disk, a clutch wheel, a buffer spring support disk limit sleeve and a set of buffer springs. The levitating support plate is arranged in a state of levitating above the working platform. The front end of the levitating support plate is fixed to the upper end of the front support of the levitating support plate through a front fixing screw of the levitating support plate, and the lower end of the front support of the levitating support plate is fixed to the working platform through a screw. The rear end of the levitating support plate is fixed to the upper end of the rear support of the levitating support plate through a rear fixing screw of the levitating support plate, and the lower end of the rear support of the levitating support plate is fixed to the working platform through a screw. Among them, the front support of the levitating support plate is located in front of the working platform relief opening, and the rear support of the levitating support plate is located behind the working platform relief opening. The space between the levitating support plate and the upper plane of the working platform relief opening forms a support plate levitation cavity. The clutch wheel driving cylinder is fixed to the clutch wheel driving cylinder fixing plate at a position corresponding to the lower part of the working platform relief opening with its clutch wheel driving cylinder column facing upward, and the clutch wheel driving cylinder fixing plate is fixedly connected to the lower ends of a set of connecting columns distributed in a cross shape. The upper ends of the set of connecting columns are fixedly connected to the levitating support plate. The spline shaft sleeve is rotationally matched with the spline shaft sleeve bearing seat through a spline shaft sleeve bearing, and the spline shaft sleeve bearing seat is fixed to the rear end of the levitating support plate through a spline shaft sleeve bearing seat fixing screw. A spline shaft sleeve expansion disk is formed at the upper part of the spline shaft sleeve, and a spline shaft up and down sliding fit hole is formed at the central position in the height direction of the spline shaft sleeve. The driven gear is fixed to the spline shaft sleeve expansion disk through a driven gear fixing screw at a position corresponding to the spline shaft sleeve expansion disk screw hole formed on the spline shaft sleeve expansion disk. The upper end of the spline shaft is in spline fit with the clutch wheel spline hole formed at the central position of the clutch wheel. The lower end of the spline shaft sequentially passes through the buffer spring support disk center hole formed at the central part of the buffer spring support disk, the limit sleeve spline hole formed at the central part of the buffer spring support disk limit sleeve, the driven gear center hole formed at the central position of the driven gear and the spline shaft up and down sliding fit hole and extends to the lower part of the spline shaft sleeve and is connected to the clutch wheel driving cylinder column through a spline shaft rotary connection seat. The buffer spring support disk is connected to the downward side of the clutch wheel through a set of buffer spring support disk connection screws distributed at intervals at a position corresponding to the lower part of the clutch wheel. A clutch wheel clutch tooth ring for meshing or disengaging with the meshing teeth of the clutch sleeve and distributed in a radial state is formed on the upward side of the clutch wheel;The buffer spring support disk limiting sleeve is fixed to the spline shaft by a locking screw at a position below the buffer spring support disk, and a retaining spring groove is provided on the spline shaft and at a position above the buffer spring support disk limiting sleeve, the position of the buffer spring support disk on the spline shaft is located between the retaining spring groove and the buffer spring support disk limiting sleeve and is limited by the retaining spring embedded in the retaining spring groove, a group of buffer springs are distributed in an interval state, and the upper end of the group of buffer springs is supported in the clutch wheel spring supporting pit formed on the lower surface of the clutch wheel, and the lower end of the group of buffer springs is supported in the buffer spring supporting pit formed on the upper surface of the buffer spring support disk; the clutch rotation drive mechanism is meshed with the slave gear; the clutch wheel driving cylinder is a cylinder. ;

[0014] In yet another specific embodiment of the present invention, the clutch rotation drive mechanism includes a driving gear drive motor, a driving gear drive reduction box and a driving gear. The driving gear drive motor is fixed to the driving gear drive reduction box with its motor shaft facing upward and is in transmission cooperation with the driving gear drive reduction box. The driving gear drive reduction box together with the driving gear drive motor is fixed to the side of the front end of the vacant support plate facing downward. The driving gear drive reduction box shaft of the driving gear drive reduction box extends above the vacant support plate. The position of the driving gear above the vacant support plate is fixed to the top end surface of the driving gear drive reduction box shaft by a driving gear fixing screw and meshes with the driven gear.

[0015] In yet another specific embodiment of the present invention, a turntable anti-deformation support mechanism is provided on the working platform and at positions corresponding to the left middle part and the right middle part of the empty support plate, the turntable 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 connected to the upper end of the roller frame fixing seat so as to be adjusted up and down, and the upper end of the roller frame extends upward, the roller is rotatably provided at the upper end of the roller frame through a roller shaft and the roller is in contact with the downward side surface of the edge of the turntable.

[0016] The technical effects of the technical solution provided by the present invention are as follows: Since the rotary table can be driven by the rotary table driving mechanism to rotate, and since the manipulator can place the vehicle seat adjuster, which is the workpiece to be welded with the closing ring and the gear disk, under the adjuster to clamp the shielding mechanism, and when the clutch mechanism pushes the shielding mechanism clamped under the adjuster upward and cooperates with the shielding mechanism clamped above the adjuster to clamp the workpiece and shield the non-welding parts at the same time, and since the clutch rotation driving mechanism can drive the clutch mechanism to rotate and the clutch mechanism can make the workpiece in the clamped state cooperate with the shielding mechanism clamped above the adjuster rotate through the shielding mechanism clamped under the adjuster, so that the closing ring and the gear disk can be welded by the laser automatic welding manipulator, the cyclic operation mode of feeding, welding and taking away can be realized, thus ensuring the laser welding efficiency; Since the laser welding is carried out under the common shielding of the shielding mechanisms clamped above and below the adjuster for the workpiece, it is possible to avoid the residue and debris that may be generated during the laser welding process from entering the vehicle seat adjuster; Since the workpiece between the shielding mechanisms clamped above and below the adjuster can always be kept at the same horizontal position, the regular consistency effect of the welding position can be ensured; Since the overall structure is simple and the operation is convenient, the long service life can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural diagram of an embodiment of the present invention; Figure 2 is Figure 1 a three-dimensional exploded structural diagram of the upper clamping shielding assembly of the structural system of the upper clamping shielding mechanism of the adjuster shown; Figure 3 is Figure 1 a detailed structural diagram of the rotary table and the rotary table driving mechanism shown; Figure 4 is Figure 1 a detailed structural diagram of the lower clamping shielding mechanism of the adjuster shown; Figure 5 is Figure 1 a detailed structural diagram of the clutch mechanism and the clutch rotation driving mechanism shown; Figure 6 is Figure 1 and Figure 5 a detailed structural diagram of the mating of the spline shaft, the driven gear and the spline shaft sleeve shown. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to more clearly understand the technical essence and beneficial effects of the present invention, the applicant will make a detailed description below in the form of embodiments. However, the description of the embodiments is not a limitation to the technical solution of the present invention. Any equivalent transformation that is only formal rather than substantial based on the concept of the present invention should be regarded as falling within the scope of the technical solution of the present invention.

[0019] In the following description, all concepts related to up, down, left, right, front and back directions or orientations are based on the current Figure 1 The position state is taken as an example, and thus it cannot be understood as a special limitation on the technical solution provided by the present invention.

[0020] See also Figure 1 , showing a working platform 1, which is supported on the floor of the place of use by supporting members such as supporting legs, supporting frames or other similar supporting members when in use, and a flying frame 11 is arranged on the working platform 1; showing a recliner upper clamping shielding mechanism 2, which is arranged on the aforementioned flying frame 11 so as to move up and down; showing a turntable 3 and a turntable driving mechanism 4, which is arranged on the aforementioned working platform 1, and the center position of the turntable 3 facing downward is connected to the turntable driving mechanism 4 and is driven to rotate by the turntable driving mechanism 4; showing a group of recliner lower clamping shielding mechanisms 5, which move up and down at equal distances. And it is rotatably arranged on the aforementioned turntable 3; a clutch mechanism 6 is shown, which is used to engage or disengage with the lower clamping and shielding mechanism 5 of the aforementioned group of recliner lower clamping and shielding mechanisms 5 located below the upper clamping and shielding mechanism 2 of the recliner, and drives the lower clamping and shielding mechanism 5 of the recliner to move up and down and rotate in the engaged state, and the clutch mechanism 6 is arranged on the aforementioned working platform 1 at a position corresponding to the lower part of the aforementioned recliner lower clamping and shielding mechanism 5; a clutch rotation driving mechanism 7 is shown, which is used to rotate the aforementioned clutch mechanism 6 in a state of engagement with the aforementioned lower clamping and shielding mechanism 5 of the recliner, and the clutch rotation driving mechanism 7 is arranged on the aforementioned working platform 1 along with the clutch mechanism 6 and cooperates with the clutch mechanism 6 in transmission.

[0021] Under the operation of the above-mentioned turntable driving mechanism 4, the turntable 3 connected thereto is driven to rotate, so that a set of equidistantly arranged lower angle adjuster clamping shielding mechanisms 5 on the upper side of the turntable 3 facing upwards are connected to the upper angle adjuster clamping shielding mechanisms 2 and the clutch mechanism 6 in a relay manner. Figure 4 When the car seat recliner 8 shown in the figure is in the state of being carried by the shielding mechanism 5 clamped under the recliner and corresponds to the position below the shielding mechanism 2 clamped on the recliner, it indicates that the previous car seat recliner 8 that has been welded has been rotated to the removal position so that it can be automatically removed by a robot not shown in the figure. At the same time, under the operation of the robot, the next car seat recliner 8 to be welded is pre-extracted and placed on the shielding mechanism 5 clamped under another recliner, so as to replace the one that is still in the welding state, such as replacing the one that is welded by the robot. Figure 1One angle adjuster located in front of the rotary table 3 under the shown state clamps the shielding mechanism 5. From this, it can be known that as a preferred technical means, in this embodiment, the shielding mechanism 5 is clamped under each two adjacent angle adjusters around the circumferential direction of the rotary table 3 with a distance of 120° (taking the center of the rotary table 3 as the center) between each other, that is, three angle adjusters are provided on the rotary table 3 to clamp the shielding mechanism 5 in order to meet the requirements of an uninterrupted relay cycle for the welding station, the taking-off station, and the station for placing the workpiece to be welded (i.e., placing the vehicle seat angle adjuster 8).

[0022] The aforementioned overhead rack 11 includes a left longitudinal arm 111, a right longitudinal arm 112, and an angle adjuster upper clamping shielding mechanism mounting plate 113. The lower end of the left longitudinal arm 111 is fixed to the left side of the aforementioned working platform 1 through the left longitudinal arm base 1111 and by means of screws, and 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 through the right longitudinal arm base 1121 and by means of screws, and the upper end of the right longitudinal arm 112 extends upward. The left end of the angle adjuster upper clamping shielding mechanism mounting plate 113 is fixed to the rear side of the upper end of the left longitudinal arm 111, and the right end of the angle adjuster upper clamping shielding mechanism mounting plate 113 is fixed to the front side of the upper end of the right longitudinal arm 112. A station partition accommodating cavity 1131 is formed in the middle of the lower part of the angle adjuster upper clamping shielding mechanism mounting plate 113, and the distances between the lower edges of the left end and the right end of the angle adjuster upper clamping shielding mechanism mounting plate 113 and the aforementioned working platform 1 are respectively formed as overhead spaces 1132; the aforementioned angle adjuster upper clamping shielding mechanism 2 is arranged on the front side of the middle part in the length direction of the angle adjuster upper clamping shielding mechanism mounting plate 113 and corresponds to the upper part of the middle part in the length direction of the aforementioned station partition accommodating cavity 1131; the aforementioned rotary table 3 corresponds to the inside of the aforementioned station partition accommodating cavity 1131.

[0023] Please continue to see Figure 1, the shielding mechanism 2 clamped on the aforesaid angle adjuster includes a cover plate 21, an upper clamping shielding sheath lifting cylinder 22, an upper clamping shielding sheath lifting cylinder support seat 23, a push plate vertical displacement guide rod 24, a push plate 25, a pair of left limit columns 26a for the downward movement of the push plate, a pair of right limit columns 26b for the downward movement of the push plate, and an upper clamping shielding sheath assembly 27 of the angle adjuster. At both ends of the cover plate 21, each is fixed to the front side of the middle part in the length direction of the aforesaid upper clamping shielding mechanism mounting plate 113 of the angle adjuster through a cover plate fixing screw 211. The upper clamping shielding sheath lifting cylinder 22 is fixed on the upper clamping shielding sheath lifting cylinder support seat 23 in a ┐-shaped form. And the upper clamping shielding sheath lifting cylinder column 221 of the upper clamping shielding sheath lifting cylinder 22 extends to the lower side of the horizontal plate of the upper clamping shielding sheath lifting cylinder support seat 23. And the vertical plate of the upper clamping shielding sheath lifting cylinder support seat 23 is fixed to the front side of the aforesaid cover plate 21. The number of the push plate vertical displacement guide rods 24 is a pair and they respectively correspond to the left side and the right side of the upper clamping shielding sheath lifting cylinder column 221. The upper ends of the pair of push plate vertical displacement guide rods 24 respectively form a sliding pair with a guide rod sleeve 241. The guide rod sleeve 241 is fixed to the aforesaid upper clamping shielding sheath lifting cylinder support seat 23. The push plate 25 is located below the aforesaid horizontal plate of the upper clamping shielding sheath lifting cylinder support seat 23. The left end and the right end of the push plate 25 are respectively fixed to the lower ends of the aforesaid pair of push plate vertical displacement guide rods 24. And the middle part of the push plate 25 is fixed to the lower end of the aforesaid upper clamping shielding sheath lifting cylinder column 221. A pair of left limit columns 26a for the downward movement of the push plate are fixed to the downward-facing side of the left end of the push plate 25 in a longitudinal cantilever state parallel to each other front and back. And a pair of right limit columns 26b for the downward movement of the push plate are similarly fixed to the downward-facing side of the right end of the push plate 25 in a longitudinal cantilever state parallel to each other front and back. The pair of left limit columns 26a for the downward movement of the push plate and the pair of right limit columns 26b for the downward movement of the push plate correspond to each other and have the same height. The upper clamping shielding sheath assembly 27 of the angle adjuster is connected to the cylinder column end step connector 2211 where the upper clamping shielding sheath lifting cylinder column 221 extends below the push plate 25 at a position corresponding to the lower side of the aforesaid push plate 25; in this embodiment, the aforesaid upper clamping shielding sheath lifting cylinder 22 is a pneumatic cylinder.

[0024] The applicant needs to explain that: Since the shape of the aforesaid upper clamping shielding sheath lifting cylinder support seat 23 is in the ┐-shaped form mentioned above, the aforesaid horizontal plate is the upper transverse plate, and the aforesaid vertical plate is the vertical plate integrated with the transverse plate.

[0025] From Figure 1As shown, a pair of left blocking columns 31 are longitudinally fixed on the aforementioned rotary table 3 and at a position below the corresponding pair of left limit columns 26a for the downward movement of the push plates. Similarly, a pair of right blocking columns 32 are longitudinally fixed at a position below the corresponding pair of right limit columns 26b for the downward movement of the push plates. When the lower end faces of the pair of left limit columns 26a for the downward movement of the push plates and the pair of right limit columns 26b for the downward movement of the push plates respectively contact the upper end faces of the pair of left blocking columns 31 and the pair of right blocking columns 32, the degree to which the upper clamping shield sleeve lifting cylinder column 221 pushes the push plate 25 and the angle adjuster upper clamping shield sleeve assembly 27 downward reaches the limit. A station partition plate 33 is also provided on the rotary table 3 for separating the group of angle adjuster lower clamping shield mechanisms 5 from each other. Among them, 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 on both sides. Each angle adjuster lower clamping shield mechanism in the group of angle adjuster lower clamping shield mechanisms 5 is in an alternating state corresponding to the position below the angle adjuster upper clamping shield mechanism 2.

[0026] As shown by Figure 1 and Figure 3 the aforementioned station partition plate 33 is fixed to the rotary table 3. Its self - evident function is to avoid affecting other two stations during the welding process of the vehicle seat angle adjuster 8 at one station. For example, it prevents welding chips from splashing onto the workpieces, i.e., the vehicle seat angle adjusters 8, at other stations.

[0027] Please refer to Figure 2 and in combination with Figure 1 and Figure 4, the clip-on shield sheath assembly 27 on the aforesaid angle adjuster includes a clip-on shield sheath 271 on the angle adjuster, a shield sheath 272 on the angle adjuster driving member, a clip-on shield sheath connecting bearing seat 273 on the angle adjuster, and a clip-on shield sheath connecting bearing seat cover plate 274. The lower part of the clip-on shield sheath 271 on the angle adjuster forms a frustum of a cone 2711 with a diameter gradually decreasing from the upper part to the lower part. In the use state, the frustum of the cone 2711 cooperates with the concave cavity 81 on the angle adjuster of the vehicle seat adjuster 8 to clamp and shield the upward side of the vehicle seat angle adjuster 8. The clip-on shield sheath 271 on the angle adjuster forms a clip-on shield sheath cavity 2712. In the clip-on shield sheath cavity 2712, a bearing seat support step ring 27121 and a shield sheath support step ring 27122 on the angle adjuster driving member are formed. The shield sheath support step ring 27122 on the angle adjuster driving member is located below the bearing seat support step ring 27121. The shield sheath 272 on the angle adjuster driving member is arranged below the clip-on shield sheath cavity 2712. At the upper end of the shield sheath 272 on the angle adjuster driving member and surrounding the periphery of the shield sheath 272 on the angle adjuster driving member, a support flange 2721 is formed. The support flange 2721 supports on the aforesaid shield sheath support step ring 27122 on the angle adjuster driving member. And at the lower part of the shield sheath cavity 2722 of the shield sheath 272 on the angle adjuster driving member, an angle adjuster driving member insertion cavity 27221 is formed. In the use state, the driving member 82 of the vehicle seat angle adjuster 8 cooperates with the angle adjuster driving member insertion cavity 27221. The clip-on shield sheath connecting bearing seat 273 supports on the aforesaid bearing seat support step ring 27121 and is fixed by a clip-on shield sheath connecting bearing seat fixing screw 2731 and a bearing seat support step ring fixing screw hole 27123 arranged at intervals on the bearing seat support step ring 27121. The upper part of the clip-on shield sheath connecting bearing seat 273 protrudes out of the clip-on shield sheath cavity 2712. And at the central position of the clip-on shield sheath connecting bearing seat 273, an upper clip-on shield sheath connecting bearing 2732 is arranged. The clip-on shield sheath connecting bearing seat cover plate 274 covers the upper surface of the clip-on shield sheath connecting bearing seat 273 and is fixed by a cover plate fixing screw 2741 and a cover plate fixing screw hole 2733 preset on the clip-on shield sheath connecting bearing seat 273. At the central position of the clip-on shield sheath connecting bearing seat cover plate 274, a cover plate through hole 2742 is formed. The aforesaid cylinder column end step connecting head 2211 extends downward through the cover plate through hole 2742 and the bearing hole 27321 of the upper clip-on shield sheath connecting bearing 2732 to the lower part of the clip-on shield sheath connecting bearing seat 273,The cylinder end step connector screw 22111 is fixed to the lower end face of the cylinder end step connector 2211, connecting the cylinder end step connector 2211 to the clamping shield sleeve connection bearing seat 273 on the angle adjuster; during the process that the rotary table driving mechanism 4 on the working platform 1 drives the rotary table 3 to rotate rhythmically, each angle adjuster lower clamping shield mechanism 5 in the group of angle adjuster lower clamping shield mechanisms 5 alternately corresponds to the lower part of the angle adjuster upper clamping shield sleeve 271 of the angle adjuster upper clamping shield assembly 27; the clutch mechanism 6 only meshes or disengages with the angle adjuster lower clamping shield mechanism 5 corresponding to the lower part of the angle adjuster upper clamping shield sleeve 271, and when in the meshing state, the clutch rotation driving mechanism 7 drives the angle adjuster lower clamping shield mechanism 5 to rotate through the clutch mechanism 6.,

[0028] Please refer to Figure 3 and in combination with Figure 1 The aforementioned rotary table driving mechanism 4 includes a rotary table driving motor 41 and a rotary table driving reduction gearbox 42. The rotary table driving motor 41 is fixed to the rotary table driving reduction gearbox 42 in a horizontally lying state and is in transmission connection with the rotary table driving reduction gearbox 42. The rotary table driving reduction gearbox 42 together with the rotary table driving motor 41 is arranged on the rotary table driving reduction gearbox support seat 421. The rotary table driving reduction gearbox shaft 422 of the rotary table driving reduction gearbox 42 faces upward. The aforementioned rotary table driving reduction gearbox support seat 421 is fixed on the aforementioned working platform 1. The central position on the downward-facing side of the aforementioned rotary table 3 is fixed to the aforementioned rotary table driving reduction gearbox shaft 422.,

[0029] When the rotary table driving motor 41 works, it drives the rotary table driving reduction gearbox 42. The rotary table driving reduction gearbox shaft 422 of the rotary table driving reduction gearbox 42 drives the rotary table 3 fixed thereto to rotate. When the angle adjuster lower clamping shield mechanism 5 carrying the vehicle seat angle adjuster 8 to which the closing ring and the gear disk are to be welded is corresponding to the aforementioned angle adjuster upper clamping shield mechanism 2, the rotary table driving motor 41 stops working and the rotary table 3 stops rotating. At this time, the upper clamping shield lifting action cylinder 22 of the structural system of the angle adjuster upper clamping shield mechanism 2 works, causing the upper clamping shield lifting action cylinder column 221 of the upper clamping shield lifting action cylinder 22 to extend downward, i.e., outward from the cylinder body. Since the push plate 25 acts on the action cylinder step 2212 at the lower end of the upper clamping shield lifting action cylinder column 221 ( Figure 3The part shown is fixed, so the push plate 25 is pushed downward by the upper clamping shield sheath lifting cylinder column 221. Also, since the entire angle adjuster upper clamping shield sheath assembly 27 is substantially fixedly connected to the lower end face of the upper clamping shield sheath lifting cylinder column 221 through the connecting head screw 22111 at the end of the cylinder column, when the push plate 25 descends, the angle adjuster upper clamping shield sheath assembly 27 also descends accordingly. The angle adjuster upper clamping shield sheath 271 shields the cavity 81 of the angle adjuster of the automotive seat angle adjuster 8 in the clamped state, while the area of the automotive seat angle adjuster 8 facing downward is clamped and shielded by the angle adjuster lower clamping shield mechanism 5 described further below. The pause time between the rotation table drive motor 41 stopping working and working again basically coincides with the time taken for the laser welding manipulator to weld a workpiece, specifically depending on the electrical controller that is electrically connected and used to control the operation of the rotation table drive motor 41. In addition, the aforementioned rotation table drive motor 41 is preferably a servo motor.

[0030] Please refer to Figure 4 And in combination with Figure 1, on the aforementioned rotary table 3 and corresponding to each of a set of angle adjuster lower clamping shielding mechanisms 5, a cylindrical hole 34 is provided; each of the aforementioned set of angle adjuster lower clamping shielding mechanisms 5 includes an angle adjuster lower clamping shielding sleeve 51, an angle adjuster lower clamping shielding sleeve connecting shaft support bearing seat 52, an angle adjuster lower clamping shielding sleeve connecting shaft 53, and a clutch sleeve 54. The lower part of the angle adjuster lower clamping shielding sleeve connecting shaft support bearing seat 52 forms a bearing seat cylinder 521. Inside the bearing seat cylinder cavity 5211 of the bearing seat cylinder 521, a pair of upper and lower corresponding connecting shaft mating bearings 52111 are arranged. And the lower end of the bearing seat cylinder 521 extends out of the lower surface of the aforementioned rotary table 3. The upper end of the angle adjuster lower clamping shielding sleeve connecting shaft support bearing seat 52 is expanded to form a bearing seat flange 522. The bearing seat flange 522 is fixed to the upper surface of the rotary table 3 through bearing seat flange screws 5221. The angle adjuster lower clamping shielding sleeve 51 is located above the angle adjuster lower clamping shielding sleeve connecting shaft support bearing seat 52. The angle adjuster lower clamping shielding sleeve 51 forms an angle adjuster lower clamping shielding sleeve cavity 511 with an open upper part. On 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, an angle adjuster lower support step 5111 for supporting the lower part of the aforementioned vehicle seat angle adjuster 8 is formed. At the central position of the bottom wall of the angle adjuster lower clamping shielding sleeve cavity 511, a journal mating hole 5112 is provided. The middle part of the angle adjuster lower clamping shielding sleeve connecting shaft 53 is rotationally mated with the aforementioned pair of connecting shaft mating bearings 52111, and the lower end extends out of the lower plane of the aforementioned bearing seat cylinder 521. And the upper end of the angle adjuster lower clamping shielding sleeve connecting shaft 53 forms a journal 531. The journal 531 is rotationally mated with the aforementioned journal mating hole 5112. On the upper part of the journal 531 and inside the angle adjuster lower clamping shielding sleeve cavity 511, an upper limit disk 5311 is fixed through an upper limit disk fixing screw 53111. And on the lower part of the journal 531 and at a position corresponding to the side of the bottom wall of the angle adjuster lower clamping shielding sleeve cavity 511 facing away from the angle adjuster lower clamping shielding sleeve cavity 511, a lower limit disk 5312 is formed. The central position of the top wall of the clutch sleeve 54 is fixed to the lower end of the bearing seat cylinder 521. And around the lower edge of the clutch sleeve 54, clutch sleeve meshing teeth 541 are formed; the aforementioned clutch mechanism 6 meshes or disengages with the aforementioned clutch sleeve meshing teeth 541 of the clutch sleeve 54. And in the meshing state, the clutch mechanism 6 pushes the clutch sleeve 54 upward, and the aforementioned clutch rotation driving mechanism 7 drives the clutch mechanism 6 together with the clutch sleeve 54 to rotate.

[0031] Please refer to Figure 5 and Figure 6 and in combination with Figure 1, a working platform relief opening 12 is provided on the aforementioned working platform 1 and at a position corresponding to the aforementioned clutch mechanism 6; the aforementioned clutch mechanism 6 includes a floating support plate 61, a clutch wheel driving cylinder 62, a spline shaft sleeve 63, a driven gear 64, a spline shaft 65, a buffer spring support plate 66, a clutch wheel 67, a buffer spring support plate limit sleeve 68, and a set of buffer springs 69. The floating support plate 61 is arranged in a state of floating above the aforementioned working platform 1. The front end of the floating support plate 61 is fixed to the upper end of the front support of the floating support plate 611 through a front fixing screw of the floating support plate, and the lower end of the front support of the floating support plate 611 is fixed to the aforementioned working platform 1 through a screw. The rear end of the floating support plate 61 is fixed to the upper end of the rear support of the floating support plate 612 through a rear fixing screw of the floating support plate, and the lower end of the rear support of the floating support plate 612 is fixed to the aforementioned working platform 1 through a screw. Among them, the aforementioned front support of the floating support plate 611 is located in front of the working platform relief opening 12, and the rear support of the floating support plate 612 is located behind the working platform relief opening 12. The space between the floating support plate 61 and the upper plane of the working platform relief opening 12 forms a support plate floating cavity 613. The clutch wheel driving cylinder 62 is fixed to the clutch wheel driving cylinder fixing plate 622 in a state where its clutch wheel driving cylinder column 621 faces upward at a position corresponding to the lower part of the aforementioned working platform relief opening 12. The clutch wheel driving cylinder fixing plate 622 is fixedly connected to the lower ends of a set of connecting columns 6221 distributed in a cross shape, and the upper ends of the set of connecting columns 6221 are fixedly connected to the aforementioned floating support plate 61. The spline shaft sleeve 63 is rotationally matched with the spline shaft sleeve bearing seat 631 through the spline shaft sleeve bearing 6311, and the spline shaft sleeve bearing seat 631 is fixed to the rear end of the aforementioned floating support plate 61 through a spline shaft sleeve bearing seat fixing screw. An extended disk 632 of the spline shaft sleeve is formed on the upper part of the spline shaft sleeve 63, and a spline shaft upper and lower sliding fit hole 633 is formed at the central position in the height direction of the spline shaft sleeve 63. The driven gear 64 is fixed to the extended disk 632 of the spline shaft sleeve at a position corresponding to the spline shaft sleeve extended disk screw hole 6321 formed on the extended disk 632 of the spline shaft sleeve through a driven gear fixing screw 641. The upper end of the spline shaft 65 is in spline fit with the clutch wheel spline hole 671 formed at the central position of the clutch wheel 67. The lower end of the spline shaft 65 sequentially passes through the buffer spring support plate center hole 661 formed at the center of the buffer spring support plate 66, the limit sleeve spline hole 681 formed at the center of the buffer spring support plate limit sleeve 68, the driven gear center hole 642 formed at the central position of the driven gear 64, and the spline shaft upper and lower sliding fit hole 633 and extends below the spline shaft sleeve 63 and is connected to the aforementioned clutch wheel driving cylinder column 621 through a spline shaft rotary connection seat 651. The buffer spring support plate 66 is connected to the downward side of the clutch wheel 67 through a set of buffer spring support plate connection screws 662 distributed at intervals at a position corresponding to the lower part of the clutch wheel 67.On the upward-facing side of the clutch wheel 67, there is formed a clutch wheel clutch gear ring 672 that is used to engage or disengage with the engaging teeth 541 of the aforementioned clutch sleeve and is distributed in a radial state; the buffer spring support disk limiting sleeve 68 is fixed to the aforementioned spline shaft 65 by a locking screw 682 at a position below the buffer spring support disk 66. On the spline shaft 65 and at a position above the buffer spring support disk limiting sleeve 68, a snap ring groove 652 is provided. The aforementioned buffer spring support disk 66 is located on the spline shaft 65 between the snap ring groove 652 and the buffer spring support disk limiting sleeve 68 and is defined by a snap ring 6521 embedded in the snap ring groove 652. A group of buffer springs 69 are distributed at intervals, and the upper ends of this group of buffer springs 69 are supported in the clutch wheel spring support pits formed on the lower surface of the clutch wheel 67, while the lower ends of this group of buffer springs 69 are supported in the buffer spring support disk pits 663 formed on the upper surface of the buffer spring support disk 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 pneumatic cylinder.,

[0032] In the present invention, the positive significance of the above-mentioned group of buffer springs 69 is to play an energy-absorbing role, avoiding damage to the clutch wheel 67 and even to the clutch sleeve 54 and the turntable 3 due to impact. Specifically, it can avoid the situation where the excessive squeezing engagement force between the clutch wheel clutch gear ring 672 (i.e., the clutch wheel engaging teeth) and the clutch sleeve engaging teeth 541 caused by the operation of the clutch wheel drive cylinder 62 leads to damage.

[0033] Continue to see Figure 5 The aforementioned clutch rotation drive mechanism 7 includes a driving gear drive motor 71, a driving gear drive reduction gearbox 72, and a driving gear 73. The driving gear drive motor 71 is fixed to the driving gear drive reduction gearbox 72 with its motor shaft facing upward and is in transmission cooperation with the driving gear drive reduction gearbox 72. The driving gear drive reduction gearbox 72 together with the driving gear drive motor 71 is fixed to the downward-facing side of the front end of the aforementioned floating support plate 61. The driving gear drive reduction gearbox shaft 721 of the driving gear drive reduction gearbox 72 extends above the floating support plate 61. The driving gear 73 is fixed to the top surface of the driving gear drive reduction gearbox shaft 721 at a position above the floating support plate 61 by a driving gear fixing screw 731 and meshes with the aforementioned driven gear 64.

[0034] The applicant needs to explain that: Since the empty-support plate 61 of the structure system of the clutch mechanism 6 is arranged on the working platform 1 through the front and rear supports 611 and 612 of the empty-support plate, and since the main gear drive reduction box 72 of the structure system of the clutch rotation drive mechanism 7 together with the driving gear motor 71 is arranged with the empty-support plate 61 as the carrier, this is not contradictory to the applicant's statement above that the clutch rotation drive mechanism 7 is arranged on the workbench 1 accompanying the clutch mechanism 6.

[0035] When one of the angle adjusters in the group of three angle adjusters mentioned above clamps the shielding mechanism 5 corresponding to the angle adjuster mentioned above and clamps the shielding mechanism 5 between the shielding mechanism 2 and the clutch mechanism 6, it indicates that the automotive seat angle adjuster 8 has been placed on it by the manipulator at the previous station for laser welding. Before laser welding, the clutch wheel clutch teeth ring 672 on the upward side of the clutch wheel 67 of the structure system of the clutch mechanism 6 is in an engaged state with the clutch sleeve engaging teeth 541 of the clutch sleeve 54.

[0036] The meshing process of the aforementioned clutch wheel 67 and the clutch sleeve 54 is as follows: The clutch wheel driving action cylinder 62 works, and the column 621 of the clutch wheel driving action cylinder extends upward, that is, outward of the cylinder, to push the spline shaft 65 upward. The spline shaft 65 displaces the buffer spring support disk 66 and the clutch wheel 67 upward, so that the clutch wheel clutch teeth ring 672 on the clutch wheel 67 establishes an engaged relationship with the clutch sleeve engaging teeth 541 of the clutch sleeve 54. And since the clutch sleeve 54 displaces upward through the angle adjuster lower clamping shielding sleeve connecting shaft 53, and the angle adjuster lower clamping shielding sleeve connecting shaft 53 drives the aforementioned angle adjuster lower clamping shielding sleeve 51 to displace upward accordingly. Then, with the cooperation of the angle adjuster upper clamping shielding sleeve 271 of the angle adjuster upper clamping shielding sleeve assembly 27 mentioned above, the workpiece to be welded, that is, the automotive seat angle adjuster 8, is clamped between the angle adjuster upper and lower clamping shielding sleeves 271 and 51, and except for the area to be exposed for laser welding, other areas are in a good shielding or covering state.

[0037] In the state where the above-mentioned automotive seat angle adjuster 8 is well clamped and shielded, the driving gear motor 71 of the structure system of the clutch rotation drive mechanism 7 works, driving the main gear drive reduction box 72. The main gear drive reduction box shaft 721 drives the driving gear 73 meshing with the driven gear 64. Under the rotation of the driving gear 73 driving the driven gear 64, the driven gear 64 drives the spline shaft 65 to rotate accordingly, so that the buffer spring support disk 66 and the clutch wheel 67 rotate. Finally, the rotation of the clutch wheel 67 causes the automotive seat angle adjuster 8 to rotate accordingly. In the rotating state, corresponding to Figure 1A YAG (laser) welding manipulator in front of the position state shown but not shown in the figure welds the closed loop of the vehicle seat adjuster 8 in a rotating state to the rim of the gear disk. After the welding is completed, the driving motor 71 of the driving gear, which is also controlled by the aforementioned electric controller, stops working, and the clutch mechanism 6 and the reverse operation of the clamping and shielding mechanism 2 on the adjuster are carried out to release the clamping of the vehicle seat adjuster 8 that has completed the welding. Then, under the operation of the rotary driving mechanism 4, the rotary table 3 is rotated to correspond the next vehicle seat adjuster 8 to be welded and placed on the clamping and shielding mechanism 5 under the adjuster to the lower part of the clamping and shielding assembly 27 of the adjuster, and the above process is repeated to perform laser welding. Since the concepts and corresponding action mechanisms of the closed loop, gear disk, driving member 82, etc. of the aforementioned vehicle seat adjuster 8 belong to the prior art, for example, reference can be made to CN105691250A (vehicle seat adjuster) which is not limited to the examples, so the applicant will not elaborate further.

[0038] The applicant also needs to explain that: since the spline shaft 65 can push the clutch sleeve 54 to move upward, and since the spline shaft 65 can be driven to rotate by the driven gear 64, and then the spline shaft 65 drives the clutch wheel 67 to rotate, and the clutch wheel 67 drives the clutch sleeve 54 meshing with it to rotate, this is not contradictory to the description of the up and down movement and rotation of the clamping and shielding mechanism 5 under a set of adjusters described by the applicant above.

[0039] Preferably, as Figure 1 shown, a rotary table anti-deformation support mechanism 9 is provided at each of the positions corresponding to the left middle part and the right middle part of the aforementioned empty support plate 61 on the aforementioned working platform 1. 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 on the aforementioned working platform 1 in a longitudinal state. The lower end of the roller frame 92 is connected to the upper end of the roller frame fixing seat 91 in an up and down adjustable manner, and the upper end of the roller frame 92 extends upward. The roller 93 is rotatably arranged at 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 edge part of the aforementioned rotary table 3. Since the roller 93 can not only play a guiding or leading role but also play a good supporting role on the downward-facing side of the edge part of the rotary table 3, it can avoid the situation that the rotary table 3 deforms or collapses at the stressed parts, such as the parts on both sides of the rotary table 3 corresponding to the clutch mechanism 6 or the parts on both sides of the clutch sleeve 54 corresponding to the clamping and shielding mechanism 5 under the adjuster.

[0040] In summary, the technical solution provided by the present invention makes up for the deficiencies in the prior art, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the technical effect column above.

Claims

1. A tooling structure for laser welding of a car seat recliner, characterized in that: The invention comprises a working platform (1), which is supported on the floor by a supporting member when in use, and a flying frame (11) is arranged on the working platform (1); a shielding mechanism (2) is clamped on an angle adjuster, and the shielding mechanism (2) is clamped on the angle adjuster and is arranged on the flying frame (11) so as to move up and down; a turntable (3) and a turntable driving mechanism (4), and the turntable driving mechanism (4) is arranged on the working platform (1), and the center position of the downward side of the turntable (3) is aligned with the turntable. The drive mechanism (4) is connected to the turntable drive mechanism (4) and is driven to rotate by the turntable drive mechanism (4); a group of angle adjuster lower clamping shielding mechanisms (5), which are moved up and down at equal intervals and are rotatably arranged on the turntable (3); a lower angle adjuster clamping shielding mechanism (5) for engaging or disengaging with the lower angle adjuster clamping shielding mechanism (5) located below the upper angle adjuster clamping shielding mechanism (2) in the group of angle adjuster lower clamping shielding mechanisms (5) and driving the lower angle adjuster clamping shielding mechanism (5) in the engaged state A clutch mechanism (6) that moves up and down and rotates, the clutch mechanism (6) being arranged on the working platform (1) at a position corresponding to the lower part of the angle adjuster that clamps the shielding mechanism (5); and a clutch rotation drive mechanism (7) for rotating the clutch mechanism (6) in a state of being meshed with the angle adjuster that clamps the shielding mechanism (5), the clutch rotation drive mechanism (7) being arranged on the working platform (1) and being in transmission cooperation with the clutch mechanism (6).

2. The tooling structure for laser welding of the car seat recliner according to claim 1, characterized in that: The flying frame (11) comprises a left longitudinal arm (111), a right longitudinal arm (112) and a shielding mechanism mounting plate (113) clamped on the angle adjuster, the lower end of the left longitudinal arm (111) is fixed to the left side of the working platform (1) through a left longitudinal arm base (1111), and 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) through a right longitudinal arm base (1121), and the upper end of the right longitudinal arm (112) extends upward, the left end of the shielding mechanism mounting plate (113) clamped on the angle adjuster is fixed to the rear side of the upper end of the left longitudinal arm (111), and the right end of the shielding mechanism mounting plate (113) clamped on the angle adjuster is fixed to the rear side of the upper end of the left longitudinal arm (111), and the right end of the shielding mechanism mounting plate (113) clamped on the angle adjuster is fixed to the rear side of the upper end of the left longitudinal arm (111). The end is fixed to the front side of the upper end of the right longitudinal arm (112), and a workstation partition clearance cavity (1131) is formed in the middle part below the shielding mechanism mounting plate (113) clamped on the angle adjuster, and the distance between the left end and the lower edge of the right end of the shielding mechanism mounting plate (113) clamped on the angle adjuster and the working platform (1) is respectively formed as an empty space (1132); the shielding mechanism (2) clamped on the angle adjuster is arranged on the front side of the middle part of the length direction of the shielding mechanism mounting plate (113) clamped on the angle adjuster and corresponds to the upper middle part of the length direction of the workstation partition clearance cavity (1131); the turntable (3) corresponds to the workstation partition clearance cavity (1131).

3. The tooling structure for laser welding of the car seat recliner according to claim 2, characterized in that: The above-mentioned upper clamping shielding mechanism (2) of the angle adjuster comprises a covering plate (21), an upper clamping shielding sleeve lifting cylinder (22), an upper clamping shielding sleeve lifting cylinder support seat (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 upper clamping shielding sleeve assembly (27) of the angle adjuster, wherein the covering plate (21) is fixed to the middle front side of the length direction of the mounting plate (113) of the upper clamping shielding mechanism of the angle adjuster, and the upper clamping shielding sleeve lifting cylinder (22) is fixed to the upper clamping shielding sleeve lifting cylinder. The shield sleeve lifting cylinder support seat (23) is mounted on the shield sleeve lifting cylinder support seat (23), and the shield sleeve lifting cylinder column (221) of the shield sleeve lifting cylinder (22) extends to the bottom of the horizontal plate of the shield sleeve lifting cylinder support seat (23), and the longitudinal plate of the shield sleeve lifting cylinder support seat (23) is fixed to the front side of the cover plate (21). There is a pair of push plate up and down displacement guide rods (24) corresponding to the left and right sides of the shield sleeve lifting cylinder column (221) respectively. The upper ends of the push plate up and down displacement guide rods (24) form a sliding connection with the guide rod sleeve (241). The movable pair, the guide rod sleeve (241) is fixed to the upper shield sleeve lifting cylinder support seat (23), the push plate (25) is located below the horizontal plate of the upper shield sleeve lifting cylinder support seat (23), the left end and the right end of the push plate (25) are respectively fixed to the lower ends of the pair of push plate up and down displacement guide rods (24), and the middle part of the push plate (25) is fixed to the lower end of the upper shield sleeve lifting cylinder column (221), and a pair of push plate downward left limit columns (26a) are fixed to the left end of the push plate (25) facing downward in a longitudinal cantilever state parallel to each other. A pair of right downward limit posts (26b) of the push plate are also fixed to the right end of the push plate (25) facing downward in a longitudinal cantilever state parallel to each other. A pair of left downward limit posts (26a) of the push plate and a pair of right downward limit posts (26b) of the push plate correspond to each other and have the same height. The upper clamping shielding sleeve assembly (27) of the angle adjuster is connected to the cylinder column end step connector (2211) of the upper clamping shielding sleeve lifting cylinder column (221) extending to the bottom of the push plate (25) at a position corresponding to the bottom of the push plate (25); the upper clamping shielding sleeve lifting cylinder column (22) is a pneumatic cylinder.

4. The tooling structure for laser welding of the car seat recliner according to claim 3 is characterized in that: A pair of left blocking columns (31) are fixed in a longitudinal state on the turntable (3) at positions corresponding to the lower side of the pair of left downward limiting columns (26a) of the push plates, and a pair of right blocking columns (32) are fixed in a longitudinal state at positions corresponding to the lower side of the pair of right downward limiting columns (26b) of the push plates. When the lower end surfaces of the pair of left downward limiting columns (26a) of the push plates and the pair of right downward limiting columns (26b) of the push plates are in contact with the upper end surfaces of the pair of left blocking columns (31) and the pair of right blocking columns (32) respectively, the upper shielding sleeve lifting cylinder column (221) pushes the push plates to move upward. The plate (25) and the downward extent of the clamping shielding sleeve assembly (27) on the angle adjuster reach the limit; a station partition (33) is also provided on the turntable (3) for isolating the group of lower clamping shielding mechanisms (5) of the angle adjuster from each other, wherein, relative to the two sides of each lower clamping shielding mechanism (5) of the group of lower clamping shielding mechanisms (5), there is a pair of left blocking columns (31) and a pair of right blocking columns (32), and each lower clamping shielding mechanism of the angle adjuster in the group of lower clamping shielding mechanisms (5) corresponds to the lower side of the upper clamping shielding mechanism (2) of the angle adjuster in an alternating state.

5. The tooling structure for laser welding of the car seat recliner according to claim 4, characterized in that: The above-mentioned shielding sleeve assembly (27) for clamping the recliner includes a shielding sleeve (271) for clamping the recliner, a shielding sleeve (272) for the recliner driving member, a bearing seat (273) for connecting the shielding sleeve for clamping the recliner, and a cover plate (274) for connecting the shielding sleeve for clamping the recliner. The lower part of the shielding sleeve (271) for clamping the recliner is formed with a truncated cone (2711) with a diameter gradually decreasing from the upper part to the lower part. In a state of use, the truncated cone (2711) cooperates with a recessed cavity (81) on the recliner of the automobile seat adjuster (8) to clamp and shield the upward side of the automobile seat adjuster (8). The shielding sleeve (271) for clamping the recliner is formed with a shielding sleeve for clamping the recliner. The sleeve cavity (2712) is formed in the shielding sleeve cavity (2712) clamped on the angle adjuster, and a bearing seat support step ring (27121) and an angle adjuster drive upper shielding sleeve support step ring (27122) are formed. The upper shielding sleeve support step ring (27122) of the angle adjuster drive is located below the bearing seat support step ring (27121). The upper shielding sleeve (272) of the angle adjuster drive is arranged below the shielding sleeve cavity (2712) clamped on the angle adjuster. A supporting flange edge (2721) is formed at the upper end of the upper shielding sleeve (272) of the angle adjuster drive and around the upper shielding sleeve (272) of the angle adjuster drive. The supporting flange edge (2721) supports the upper shielding sleeve of the angle adjuster drive. The seat is mounted on a support step ring (27122), and a lower portion of the upper shielding sleeve cavity (2722) of the recliner drive member of the shielding sleeve (272) is formed with a recliner drive member probe cavity (27221). In a use state, the driving member (82) of the car seat recliner (8) cooperates with the recliner drive member probe cavity (27221), and the recliner clamping shielding sleeve connecting bearing seat (273) is supported on the bearing seat support step ring (27121) and is fixed by the recliner clamping shielding sleeve connecting bearing seat fixing screw (2731) and the bearing seat support step ring fixing screw hole (27123) arranged on the bearing seat support step ring (27121) in a spaced state. The upper part of the shield sleeve clamping and connecting bearing seat (273) on the angle adjuster protrudes out of the shield sleeve clamping and connecting bearing seat (2712) on the angle adjuster, and an upper shield sleeve clamping and connecting bearing (2732) is provided at the central position of the shield sleeve clamping and connecting bearing seat (273) on the angle adjuster. The shield sleeve clamping and connecting bearing seat cover plate (274) on the angle adjuster covers the upper surface of the shield sleeve clamping and connecting bearing seat (273) on the angle adjuster and is fixed to the cover plate fixing screw hole (2733) preset on the shield sleeve clamping and connecting bearing seat (273) on the angle adjuster through the cover plate fixing screw (2741). A cover plate through hole (2742) is formed at the central position of the shield sleeve clamping and connecting bearing seat cover plate (274) on the angle adjuster.The cylinder column end step connector (2211) extends downward through the cover plate through hole (2742) and the bearing hole (27321) of the upper shield sleeve connection bearing (2732) to the lower side of the shield sleeve connection bearing seat (273) on the angle adjuster, and the cylinder column end step connector screw (22111) is fixed to the lower end face of the cylinder column end step connector (2211) to connect the cylinder column end step connector (2211) to the shield sleeve connection bearing seat (273) on the angle adjuster; the turntable drive mechanism (4) arranged on the working platform (1) is driven in a rhythmic manner. In the process of driving the turntable (3) to rotate in a manner, each of the set of angle adjuster lower clamping shielding mechanisms (5) is alternately corresponding to the lower part of the angle adjuster upper clamping shielding cover (271) of the angle adjuster upper clamping shielding cover assembly (27); the clutch mechanism (6) is only engaged or disengaged with the angle adjuster lower clamping shielding mechanism (5) corresponding to the lower part of the angle adjuster upper clamping shielding cover (271), and in the engaged state, the clutch rotation driving mechanism (7) drives the angle adjuster lower clamping shielding mechanism (5) to rotate through the clutch mechanism (6).

6. The tooling structure for laser welding of the car seat recliner according to claim 5, characterized in that: The turntable drive mechanism (4) comprises a turntable drive motor (41) and a turntable drive reduction box (42); the turntable drive motor (41) is fixed to the turntable drive reduction box (42) in a horizontally lying state and is in transmission connection with the turntable drive reduction box (42); the turntable drive reduction box (42) and the turntable drive motor (41) are arranged on a turntable drive reduction box support seat (421); the turntable drive reduction box shaft (422) of the turntable drive reduction box (42) faces upward; the turntable drive reduction box support seat (421) is fixed on the working platform (1); and the center position of the downward side of the turntable (3) is fixed to the turntable drive reduction box shaft (422).

7. The tooling structure for laser welding of the car seat recliner according to claim 5, characterized in that: A column hole (34) is provided on the rotating table (3) and corresponding to each of the lower clamping shielding mechanisms (5) of a group of angle adjusters; each of the lower clamping shielding mechanisms (5) of the group of angle adjusters comprises a lower clamping shielding sleeve (51) of the angle adjuster, a bearing seat (52) supporting the connecting shaft of the lower clamping shielding sleeve of the angle adjuster, a connecting shaft (53) of the lower clamping shielding sleeve of the angle adjuster and a clutch sleeve (54); the lower part of the lower clamping shielding sleeve connecting shaft supporting bearing seat (52) of the lower clamping shielding sleeve of the angle adjuster is constituted by a bearing seat column (521); a pair of connecting shaft matching bearings (52111) corresponding to each other 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 out of the rotating table. The lower surface of the platform (3) is provided with a bearing seat flange (522) extending from the upper end of the bearing seat (52) supporting the lower clamping shielding sleeve of the recliner. The bearing seat flange (522) is fixed to the upper surface of the rotating platform (3) by means of bearing seat flange screws (5221). The lower clamping shielding sleeve (51) of the recliner corresponds to the upper part of the bearing seat (52) supporting the lower clamping shielding sleeve of the recliner. The lower clamping shielding sleeve (51) of the recliner is formed with a lower clamping shielding sleeve cavity (511) with an upper opening. A lower support step (522) for supporting the lower part of the vehicle seat recliner (8) is formed at the upper part of the cavity wall of the lower clamping shielding sleeve cavity (511) and around the circumferential direction of the cavity wall. 5111), a journal matching hole (5112) is provided at the central position of the bottom wall of the cavity (511) of the shielding sleeve clamped under the angle adjuster, the middle part of the shielding sleeve connecting shaft (53) clamped under the angle adjuster is rotatably matched with the pair of connecting shaft matching bearings (52111), and the lower end protrudes out of the lower plane of the bearing seat column (521), and the upper end of the shielding sleeve connecting shaft (53) clamped under the angle adjuster is formed with a journal (531), and the journal (531) is rotatably matched with the journal matching hole (5112), and an upper limit disk (5311) is fixed on the upper part of the journal (531) and in the shielding sleeve cavity (511) clamped under the angle adjuster through an upper limit disk fixing screw (53111), and on the journal ( A lower limit plate (5312) is formed at the lower part of the clutch sleeve (531) and at a position corresponding to the bottom wall of the cavity that clamps the shield sleeve cavity (511) under the angle adjuster and is opposite to the side of the shield sleeve cavity (511) under the angle adjuster. The central position 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 clutch mechanism (6) is engaged or disengaged with the clutch sleeve meshing teeth (541) of the clutch sleeve (54), and in the engaged state, the clutch mechanism (6) pushes the clutch sleeve (54) upward, and the clutch rotation drive mechanism (7) drives the clutch mechanism (6) to rotate together with the clutch sleeve (54).

8. The tooling structure for laser welding of the car seat recliner according to claim 7, characterized in that: A work platform clearance opening (12) is provided on the work platform (1) and at a position corresponding to the clutch mechanism (6); the clutch mechanism (6) comprises a vacant support plate (61), a clutch wheel driving cylinder (62), a spline shaft sleeve (63), a driven gear (64), a spline shaft (65), a buffer spring support plate (66), a clutch wheel (67), a buffer spring support plate limiting sleeve (68) and a group of buffer springs (69); the vacant support plate (61) is arranged in a vacant state above the work platform (1); the front end of the vacant support plate (61) is connected to the vacant support plate front support (61) by a vacant support plate front fixing screw. The upper end of the vacant support plate (611) is fixed, the lower end of the front support (611) of the vacant support plate is fixed to the working platform (1) by screws, the rear end of the vacant support plate (61) is fixed to the upper end of the rear support (612) of the vacant support plate by the rear fixing screws of the vacant support plate, and the lower end of the rear support (612) of the vacant support plate is fixed to the working platform (1) by screws, wherein the front support (611) of the vacant support plate is located in front of the yield opening (12) of the working platform, and the rear support (612) of the vacant support plate is located behind the yield opening (12) of the working platform, and the space between the vacant support plate (61) and the upper plane of the yield opening (12) of the working platform constitutes a support The plate vacated cavity (613), the clutch wheel driving cylinder (62) is fixed on the clutch wheel driving cylinder fixing plate (622) at a position corresponding to the lower side of the work platform clearance opening (12) with its clutch wheel driving cylinder column (621) facing upward, and the clutch wheel driving cylinder fixing plate (622) is fixedly connected to the lower end of a group of connecting columns (6221) distributed in a tic-tac-toe shape, and the upper end of a group of connecting columns (6221) is fixedly connected to the vacated support plate (61), and the spline shaft sleeve (63) is rotatably matched with the spline shaft sleeve bearing seat (631) through the spline shaft sleeve bearing (6311), and the spline shaft sleeve bearing seat (631) is rotated by The spline sleeve bearing seat fixing screw is fixed to the rear end of the vacant support plate (61), a spline sleeve extension disk (632) is formed on the upper part of the spline sleeve (63), and a spline shaft up and down sliding matching hole (633) is formed at the central position of the spline sleeve (63) in the height direction. The driven gear (64) is fixed to the spline sleeve extension disk (632) at a position corresponding to the spline sleeve extension disk screw hole (6321) opened on the spline sleeve extension disk (632) by the driven gear fixing screw (641), and the upper end of the spline shaft (65) is spline-matched with the 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 disk center hole (661) formed in the center of the buffer spring support disk (66), the limit sleeve spline hole (681) formed in the center of the buffer spring support disk limit sleeve (68), the driven gear center hole (642) formed in the center of the driven gear (64) and the spline shaft upper and lower sliding matching hole (633) in sequence from top to bottom, extending to the bottom of the spline shaft sleeve (63) and connected to the clutch through the spline shaft rotation connection seat (651). The clutch wheel (67) is connected to the clutch wheel driving cylinder column (621); the buffer spring support plate (66) is connected to the downward side of the clutch wheel (67) through a group of buffer spring support plate connecting screws (662) distributed at intervals at a position corresponding to the position below the clutch wheel (67); the clutch wheel clutch gear ring (672) is used for meshing or disengaging with the clutch sleeve meshing teeth (541) and is distributed in a radial state on the upward side of the clutch wheel (67); the buffer spring support plate limiting sleeve (68) is connected to the clutch wheel (67) at the position below the clutch wheel (67) through a group of buffer spring support plate connecting screws (662) distributed at intervals; the clutch wheel (67) is used for meshing or disengaging with the clutch sleeve meshing teeth (541) and is distributed in a radial state on the upward side of the clutch wheel (67); The position below the buffer spring support disk (66) is fixed to the spline shaft (65) by a locking screw (682); a retaining spring groove (652) is provided on the spline shaft (65) and at a position above the buffer spring support disk limiting sleeve (68); the position of the buffer spring support disk (66) on the spline shaft (65) is located between the retaining spring groove (652) and the buffer spring support disk limiting sleeve (68) and is secured by a retaining spring (652) embedded in the retaining spring groove (652). 1) It is defined that a group of buffer springs (69) are distributed in an interval state, and the upper ends of the group of buffer springs (69) are supported in a clutch wheel spring support recess formed on the lower surface of the clutch wheel (67), and the lower ends of the group of buffer springs (69) are supported in a buffer spring support disc recess (663) formed on the upper surface of the buffer spring support disc (66); the clutch rotation drive mechanism (7) is meshed with the slave gear (64); the clutch wheel drive cylinder (62) is a cylinder. , 9. The tooling structure for laser welding of the car seat recliner according to claim 8, characterized in that: The clutch rotation drive mechanism (7) comprises a driving gear drive motor (71), a driving gear drive reduction box (72) and a driving gear (73); the driving gear drive motor (71) is fixed to the driving gear drive reduction box (72) with its motor shaft facing upward and is in transmission cooperation with the driving gear drive reduction box (72); the driving gear drive reduction box (72) together with the driving gear drive motor (71) is fixed to the side of the front end of the vacant support plate (61) facing downward; the driving gear drive reduction box shaft (721) of the driving gear drive reduction box (72) extends above the vacant support plate (61); the driving gear (73) is fixed to the top end surface of the driving gear drive reduction box shaft (721) at a position above the vacant support plate (61) by a driving gear fixing screw (731) and meshes with the driven gear (64).

10. The tooling structure for laser welding of the car seat recliner according to claim 8, characterized in that: A turntable anti-deformation support mechanism (9) is provided on the working platform (1) and at the positions corresponding to the left middle part and the right middle part of the empty support plate (61), respectively. The turntable 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 on the working platform (1) in a longitudinal state. The lower end of the roller frame (92) is connected to the upper end of the roller frame fixing seat (91) in an adjustable manner up and down, and 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) through a roller shaft (931), and the roller (93) is in contact with the side surface of the edge of the turntable (3) facing downward.

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