Automobile seat framework assembly tray mechanism

Abstract

The application discloses an automobile seat framework assembly tray mechanism, which comprises a bottom plate, a supporting ring fixedly connected to the center of the top end of the bottom plate, a rotating part rotatably sleeved with the supporting ring, a limiting assembly arranged on one side of the rotating part, the limiting assembly being fixedly connected to the top end of the bottom plate, a connecting plate fixedly connected to the top end of the rotating part through bolts, supporting columns fixedly connected to the top end of the connecting plate at four corners, respectively, an arc-shaped opening arranged at the top end of the supporting column, a supporting shaft rotatably arranged in the arc-shaped opening, the supporting shaft being fixedly connected to the two sides of a supporting frame at one end, respectively, clamping assemblies fixedly connected to the two sides of the top end of the supporting frame, respectively, and a transmission shaft rotatably connected between the two clamping assemblies on the same side. The bottom plate and the connecting plate are fixedly installed through bolts, the clamping assemblies installed on the connecting plate can be quickly replaced, and then different sizes of structures can be replaced according to different product requirements, so that the application range of the application is increased.

Description

Technical Field

[0001] This invention relates to the field of assembly tray technology, specifically to an assembly tray mechanism for an automotive seat frame. Background Technology

[0002] In a typical car seat assembly line, the frame is fixed to a pallet using clamps. The clamps and pallets used in car seat production carry the entire seat for online assembly. The frame, seat cover, and back panels are assembled and inspected to complete the assembly of the entire chair.

[0003] For example, Chinese patent CN116119153A discloses a seat frame tray mechanism, including a tray base. At the upper end of the tray base are positioned and installed a left height adjustment tube support block, a left torsion spring support block, a right height adjustment tube support block, a right torsion spring support block, a left frame bolt fixing seat, a right frame bolt fixing seat, a left guide rail fixing base, a right guide rail fixing base, a left guide rail limiting block, a right guide rail limiting block, a Harting fixing seat, an angle adjustment tube holder, an H-frame plastic part fixing base, and an angle adjustment motor support. The left and right height adjustment tube support blocks are symmetrically distributed, as are the left and right torsion spring support blocks, and the left and right frame bolt fixing seats. The seat frame tray mechanism of this invention fixes the seat frame guide rails to the tray, and the grippers automatically clamp the components. The components are then transported to each station via a conveyor belt, enabling the assembly, automatic oiling, tightening, and automatic unloading of seat frame parts at each station.

[0004] Current seat frame assembly trays require redesign and manufacturing when there are mixed-line seat products, product upgrades, or differences in the structure of new and old seat products. The tray clamping mechanism cannot achieve quick change, resulting in poor flexibility and high cost of reuse and modification. Therefore, we propose an automotive seat frame assembly tray mechanism to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automotive seat frame assembly tray mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automotive seat frame assembly tray mechanism, comprising a base plate, a support ring fixedly connected to the center of the top of the base plate, the support ring rotatably sleeved on a rotating part, a limiting component provided on one side of the rotating part, the limiting component being fixedly connected to one side of the top of the base plate, a connecting plate being fixedly installed on the top of the rotating part by bolts, support columns being fixedly connected to the four corners of the top of the connecting plate, an arc-shaped opening being provided at the top of the support column, a support shaft being rotatably provided within the arc-shaped opening, one end of the support shaft being fixedly connected to both sides of a support frame, clamping components being fixedly connected to both sides of the top of the support frame, and a drive shaft being rotatably connected between the two clamping components on the same side;

[0007] The top two sides of the connecting plate are respectively provided with lifting components, and the opposite side of the lifting components is respectively provided with adjustment components, and the adjustment components are fixedly connected to the lifting components.

[0008] Preferably, the connecting plate has several circular holes, and the connecting plate is fixedly connected to the rotating part by bolts passing through the circular holes. The support frame has a U-shaped structure, and the arc-shaped opening has a J-shaped structure.

[0009] Preferably, the clamping components are arranged symmetrically in pairs. Each clamping component includes a support housing, a bidirectional screw, a worm gear, a worm, a movable plate, and a clamping plate. The bottom end of the support housing is fixedly connected to a support frame. A worm is rotatably mounted on the bottom of the support housing. One end of the worm is fixedly connected to one end of a drive shaft, and the other end of the worm is fixedly connected to a handwheel. The top of the worm is engaged with the worm gear. The worm gear is fixedly sleeved on the middle part of the bidirectional screw. The two sides of the bidirectional screw are respectively connected to the movable plate through a threaded structure. The movable plate is slidably installed inside the support housing, and the top of the movable plate is fixedly connected to the clamping plate.

[0010] Preferably, the support housing has a U-shaped structure, and the two ends of the bidirectional screw are respectively rotatably connected to the support housing, with the length direction of the bidirectional screw and the length direction of the worm gear being perpendicular to each other.

[0011] Preferably, a gear is fixedly connected to the end of the support shaft away from the support frame, and the gear is rotatably positioned between the support column and the lifting assembly.

[0012] Preferably, the lifting assembly includes a support plate, guide slide rods, an adjusting slide plate, a side slide plate, and a rack. The adjusting slide plate is movably disposed on both sides of the top of the connecting plate. Several guide slide rods are fixedly connected to both sides of the adjusting slide plate. The guide slide rods are slidably connected to the support plate. The support plate is fixedly connected to the top of the connecting plate. The ends of the guide slide rods away from the adjusting slide plate are fixedly connected to the side slide plates. The side slide plates are slidably disposed on the top of the connecting plate. The top of the opposite side of the side slide plates is fixedly connected to the rack.

[0013] Preferably, the rack meshes with the gear, and the guide slide rods are provided in four pairs and symmetrically arranged on both sides of the adjusting slide plate, with the guide slide rods on both sides of the adjusting slide plate arranged parallel to each other.

[0014] Preferably, the adjusting assembly includes a first fixing block, a support cylinder, a threaded ring, a threaded rod, and a second fixing block. The first fixing block is fixedly connected to a support plate and one end of the support cylinder. The other end of the support cylinder is rotatably connected to the threaded ring. The threaded ring is sleeved on the threaded rod through a threaded structure. One end of the threaded rod is fixedly connected to the second fixing block, and the second fixing block is fixedly connected to an adjusting slide plate. The other end of the threaded rod is slidably sleeved on the support cylinder.

[0015] Preferably, the rotating part has cleats on its periphery and a plurality of threaded holes recessed at its top.

[0016] Preferably, the limiting assembly includes a limiting housing, an adjusting rod, a limiting ring, an arc-shaped locking plate, a spring, and a toggle block. The limiting housing is fixedly connected to the top of the base plate. The limiting housing has a hollow interior with a movable cavity, and the limiting ring is movably disposed inside the movable cavity. The limiting ring is fixedly sleeved on the adjusting rod. The adjusting rod is slidably connected to the limiting housing. One end of the adjusting rod is fixedly connected to the toggle block, and the other end of the adjusting rod is fixedly connected to the arc-shaped locking plate. The end face of the arc-shaped locking plate away from the adjusting rod has a slot that engages with the locking teeth. The spring is movably sleeved on the adjusting rod. One end of the spring is fixedly connected to the limiting ring, and the other end of the spring is fixedly connected to the inner wall of the movable cavity.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the base plate and the connecting plate are fixedly installed by bolts, which facilitates the quick replacement of the clamping components installed on the connecting plate. In addition, different sizes of structures can be replaced according to different product requirements, which increases the applicability of the present invention. The support frame that can be flipped to both sides facilitates the assembly operation of the seat frame at different angles. At the same time, the connecting plate that is set to rotate 360 ​​degrees in all directions further improves the convenience of seat frame assembly and makes assembly operations in different positions more convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention from another perspective;

[0020] Figure 3 This is a schematic diagram of the base plate structure in this invention;

[0021] Figure 4 This is a partial cross-sectional view of the clamping component in this invention.

[0022] In the diagram: Base plate 1, Connecting plate 2, Support frame 3, Support shaft 31, Gear 32, Clamping assembly 4, Support housing 41, Bidirectional screw 42, Worm gear 43, Worm 44, Movable plate 45, Clamping plate 46, Transmission shaft 5, Handwheel 6, Adjustment assembly 7, Fixing block 1 71, Support cylinder 72, Threaded ring 73, Threaded rod 74, Fixing block 2 75, Support column 8, Arc-shaped opening 81, Lifting assembly 9, Support plate 91, Guide slide rod 92, Adjusting slide plate 93, Side slide plate 94, Rack 95, Limiting assembly 10, Limiting housing 101, Adjusting rod 102, Limiting ring 103, Arc-shaped clamping plate 104, Spring 105, Actuating block 106, Support ring 11, Rotating part 12, Threaded hole 121, Clamping tooth 122. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1

[0025] Reference Figure 1 , 2 This is the first embodiment of the present invention. This embodiment provides an automotive seat frame assembly tray mechanism, including a base plate 1. A support ring 11 is fixedly connected to the top center of the base plate 1. The support ring 11 is rotatably sleeved with a rotating part 12. A limiting component 10 is provided on one side of the rotating part 12. The limiting component 10 is fixedly connected to one side of the top of the base plate 1. A connecting plate 2 is fixedly installed on the top of the rotating part 12 by bolts. Support columns 8 are fixedly connected to the four corners of the top of the connecting plate 2. An arc-shaped opening 81 is opened on the top of the support column 8. A support shaft 31 is rotatably provided in the arc-shaped opening 81. One end of the support shaft 31 is fixedly connected to both sides of the support frame 3. Clamping components 4 are fixedly connected to both sides of the top of the support frame 3. A transmission shaft 5 is rotatably connected between the two clamping components 4 on the same side.

[0026] Lifting components 9 are provided on both sides of the top of the connecting plate 2, and adjusting components 7 are provided on the opposite side of the lifting components 9. The adjusting components 7 are fixedly connected to the lifting components 9.

[0027] The two side panels of the car seat frame are respectively placed onto the clamping assembly 4, which clamps and fixes the ends of the two side panels. After the side panels of the seat frame are clamped and fixed, other parts of the seat frame can be assembled. When it is necessary to change the tilt of the assembly, the adjustment assembly 7 is operated, and in conjunction with the lifting assembly 9, the seat frame is tilted during assembly. Figure 1The left and right sides can be flipped in different directions and at different angles. At the same time, the operation limit component 10 disengages from the rotating part 12, allowing the connecting plate 2 to rotate 360 ​​degrees, thereby changing the orientation of the seat frame during assembly and making the assembly operation of the seat frame more convenient. After the limit component 10 is released, the limit component 10 engages with the rotating part 12, thereby keeping the position of the connecting plate 2 fixed and preventing the seat frame from shifting during assembly. When it is necessary to assemble seat frames of different sizes, the bolts fixing the connecting plate 2 can be removed to remove the connecting plate 2, making it easy to replace the connecting plate 2 of different sizes. Alternatively, when the lifting component 9 is not engaged with the gear 32, the support frame 3 can be removed and replaced. The support frame 3 with the corresponding clamping component 4 position can be replaced according to the size of the seat frame, which improves the flexibility of assembly and saves costs.

[0028] Example 2

[0029] Reference Figure 1-4 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. Specifically, the connecting plate 2 is provided with several circular holes, which facilitate the passage of bolts. The connecting plate 2 is fixedly connected to the rotating part 12 through the bolts passing through the circular holes. The support frame 3 has a U-shaped structure, and the arc-shaped opening 81 has a J-shaped structure. The setting of the arc-shaped opening 81 facilitates the rotation operation of the support shaft 31, while preventing the support shaft 31 from detaching.

[0030] Reference Figure 4 As shown, specifically, the clamping components 4 are arranged symmetrically in pairs. The clamping components 4 include a support housing 41, a bidirectional screw 42, a worm gear 43, a worm 44, a movable plate 45, and a clamping plate 46. The bottom end of the support housing 41 is fixedly connected to the support frame 3. The worm 44 is rotatably mounted on the bottom of the support housing 41. One end of the worm 44 is fixedly connected to one end of the drive shaft 5, and the other end of the worm 44 is fixedly connected to the handwheel 6. The top of the worm 44 is engaged with the worm gear 43. The worm gear 43 is fixedly sleeved on the middle part of the bidirectional screw 42. The two sides of the bidirectional screw 42 are respectively connected to the movable plate 45 through a threaded structure. The movable plate 45 is slidably installed in the support housing 41. The top end of the movable plate 45 is fixedly connected to the clamping plate 46. The opposite end of the clamping plate 46 is fixedly connected to an anti-slip rubber pad, which improves the anti-slip performance and avoids the clamping plate 46 from directly contacting the seat frame, preventing the clamping force of the clamping plate 46 from damaging the seat frame.

[0031] Furthermore, the support housing 41 has a U-shaped structure, and the two ends of the bidirectional screw 42 are rotatably connected to the support housing 41. The length direction of the bidirectional screw 42 is perpendicular to the length direction of the worm gear 44.

[0032] During operation, the two side plates of the seat frame are placed between the clamping plates 46 of the clamping assembly 4. Then, the handwheel 6 is turned to drive the worm gear 44 to rotate. The worm gear 44 drives the meshing worm wheel 43 to rotate. The worm wheel 43 drives the fixed double-direction screw 42 to rotate. The double-direction screw 42 drives the movable plates 45 connected by the threaded structure on both sides to move closer to each other. The movable plates 45 then drive the clamping plates 46 to move closer to each other. The clamping plates 46 then clamp and fix the side plates of the seat frame. At the same time, when the worm gear 44 rotates, it drives the fixed transmission shaft 5 to rotate. The transmission shaft 5 then drives the worm gear 44 of another clamping assembly 4 set on the same side to rotate synchronously, thereby clamping and fixing the two ends of the side plates of the seat frame.

[0033] Reference Figure 1 As shown, specifically, the end of the support shaft 31 away from the support frame 3 is fixedly connected to the gear 32. The gear 32 is rotatably positioned between the support column 8 and the lifting assembly 9, which increases the range of motion for the rotation of the gear 32.

[0034] Reference Figure 1 As shown, specifically, the lifting assembly 9 includes a support plate 91, guide slide rods 92, adjusting slide plate 93, side slide plate 94, and rack 95. The adjusting slide plate 93 is movably disposed on both sides of the top of the connecting plate 2. Several guide slide rods 92 are fixedly connected to both sides of the adjusting slide plate 93. The guide slide rods 92 are slidably connected to the support plate 91. The support plate 91 is fixedly connected to the top of the connecting plate 2. The ends of the guide slide rods 92 away from the adjusting slide plate 93 are all fixedly connected to the side slide plate 94. The side slide plate 94 is slidably disposed on the top of the connecting plate 2. The top of the opposite side of the side slide plate 94 is fixedly connected to the rack 95.

[0035] Furthermore, the rack 95 meshes with the gear 32, and the guide slide rod 92 is provided with four symmetrically arranged on both sides of the adjusting slide plate 93. The guide slide rods 92 on both sides of the adjusting slide plate 93 are arranged parallel to each other, thereby improving the stability of the guide slide rod 92 during guidance, avoiding deviation when the adjusting slide plate 93 and the side slide plate 94 move, and ensuring the overall stability.

[0036] Reference Figure 1 and 2 As shown, specifically, the adjusting component 7 includes a first fixing block 71, a support cylinder 72, a threaded ring 73, a threaded rod 74, and a second fixing block 75. The first fixing block 71 is fixedly connected to the support plate 91, and one end of the first fixing block 71 is fixedly connected to the support cylinder 72. The other end of the support cylinder 72 is rotatably connected to the threaded ring 73. The threaded ring 73 is sleeved on the threaded rod 74 through a threaded structure. One end of the threaded rod 74 is fixedly connected to the second fixing block 75, and the second fixing block 75 is fixedly connected to the adjusting slide plate 93. The other end of the threaded rod 74 is slidably sleeved on the support cylinder 72.

[0037] When the tilt of the assembly needs to be changed, the threaded ring 73 of the adjusting component 7 is rotated. The outer wall of the threaded ring 73 has anti-slip textures, which facilitates the rotation of the threaded ring 73 and improves the anti-slip performance during rotation. The rotating threaded ring 73 drives the threaded rod 74 to retract through the threaded structure. After the threaded rod 74 retracts into the support cylinder 72, it drives the fixing block 75 fixed to the end of the threaded rod 74 to move synchronously. The fixing block 75 drives the fixed adjusting slide plate 93 to move synchronously. (Refer to...) Figure 1 As shown, the adjusting slide plate 93, in conjunction with the guide slide rod 92, moves the side slide plate 94 to the left. The side slide plate 94 then moves the fixed rack 95 synchronously. During this movement, the rack 95 meshes with the gear 32. As the rack 95 continues to move to the left, it drives the gear 32 to rotate. The gear 32 then drives the fixed support shaft 31 to rotate counterclockwise. The support shaft 31 lifts the left side of the fixed support frame 3, changing the angle of the support frame 3 and thus changing the angle of the seat frame assembly. This facilitates the assembly of different sides of the seat frame. The same principle applies to [the following section / reference / etc.]. Figure 1 As shown, when the threaded rod 74 extends or retracts from the support cylinder 72, it drives the side slide plate 94 to move to the right. The side slide plate 94 drives the fixed rack 95 to move. The rack 95, in conjunction with the gear 32, drives the support shaft 31 to rotate clockwise, causing the support frame 3 to lift to the right. Thus, during the assembly of the seat frame, it achieves the movement towards... Figure 1 The image shows the flipping operations on the left and right sides in different directions and at different angles.

[0038] Reference Figure 3 As shown, specifically, the rotating part 12 has a retaining tooth 122 on its periphery, and a plurality of threaded holes 121 are recessed at the top of the rotating part 12. Bolts pass through the circular holes of the connecting plate 2, and the bolts cooperate with the threaded holes 121 to fix the connecting plate 2. The bolt installation method makes it more convenient and faster to disassemble and assemble the connecting plate 2.

[0039] Reference Figure 3 As shown, the limiting assembly 10 further includes a limiting housing 101, an adjusting rod 102, a limiting ring 103, an arc-shaped locking plate 104, a spring 105, and a toggle block 106. The limiting housing 101 is fixedly connected to the top of the base plate 1. The limiting housing 101 is hollow and has a movable cavity, and the limiting ring 103 is movably disposed inside the movable cavity. The limiting ring 103 is fixedly sleeved on the adjusting rod 102. The adjusting rod 102 is slidably connected to the limiting housing 101. One end of the adjusting rod 102 is fixedly connected to the toggle block 106, and the other end of the adjusting rod 102 is fixedly connected to the arc-shaped locking plate 104. The end face of the arc-shaped locking plate 104 away from the adjusting rod 102 has a slot that cooperates with the locking teeth 122. The spring 105 is movably sleeved on the outside of the adjusting rod 102. One end of the spring 105 is fixedly connected to the limiting ring 103, and the other end of the spring 105 is fixedly connected to the inner wall of the movable cavity.

[0040] Pulling the toggle block 106 of the limiting assembly 10 moves the fixed adjusting rod 102. The adjusting rod 102 causes the arc-shaped clamping plate 104 fixed at its end to disengage from the rotating part 12, thereby allowing the connecting plate 2 to rotate 360 ​​degrees, thus changing the orientation of the seat frame during assembly and making the assembly operation of the seat frame more convenient. After releasing the toggle block 106, the adjusting rod 102, under the elastic force of the spring 105 and in conjunction with the limiting ring 103, causes the arc-shaped clamping plate 104 fixed at the end of the adjusting rod 102 to engage with the rotating part 12, thereby keeping the position of the connecting plate 2 fixed and preventing the seat frame from shifting during assembly.

[0041] Example 3

[0042] Reference Figure 1-4 This is the third embodiment of the present invention, based on the above two embodiments. In use, the two side plates of the car seat frame are respectively placed on the clamping assembly 4. The clamping assembly 4 clamps and fixes the two ends of the two side plates respectively. During operation, the two side plates of the seat frame are placed between the clamping plates 46 of the clamping assembly 4. Then, the handwheel 6 is turned, which drives the worm gear 44 to rotate. The worm gear 44 drives the meshed worm wheel 43 to rotate. The worm wheel 43 drives the fixed double-direction screw 42 to rotate. The double-direction screw 42 drives the movable plates 45 connected by the threaded structure on both sides to move closer to each other. The movable plates 45 then drive the clamping plates 46 to move closer to each other. The clamping plates 46 then clamp and fix the side plates of the seat frame. At the same time, when the worm gear 44 rotates, it drives the fixed transmission shaft 5 to rotate. The drive shaft 5 then drives the worm gear 44 of another clamping assembly 4 located on the same side to rotate synchronously, thereby clamping and fixing both ends of the side plate of the seat frame. After the side plate of the seat frame is clamped and fixed, other parts of the seat frame can be assembled. When it is necessary to change the tilt of the assembly, the threaded ring 73 of the adjusting assembly 7 is rotated. The outer wall of the threaded ring 73 has anti-slip texture, which facilitates the rotation of the threaded ring 73 and improves the anti-slip performance during rotation. The rotating threaded ring 73 drives the threaded rod 74 to retract through the threaded structure. After the threaded rod 74 retracts into the support cylinder 72, it drives the fixing block 75 fixed to the end of the threaded rod 74 to move synchronously. The fixing block 75 drives the fixed adjusting slide plate 93 to move synchronously. Figure 1 As shown, the adjusting slide plate 93, in conjunction with the guide slide rod 92, moves the side slide plate 94 to the left. The side slide plate 94 then moves the fixed rack 95 synchronously. During this movement, the rack 95 meshes with the gear 32. As the rack 95 continues to move to the left, it drives the gear 32 to rotate. The gear 32 then drives the fixed support shaft 31 to rotate counterclockwise. The support shaft 31 lifts the left side of the fixed support frame 3, changing the angle of the support frame 3 and thus changing the angle of the seat frame assembly. This facilitates the assembly of different sides of the seat frame. The same principle applies to [the following section / reference / etc.]. Figure 1As shown, when the threaded rod 74 extends or retracts from the support cylinder 72, it drives the side slide plate 94 to move to the right. The side slide plate 94 drives the fixed rack 95 to move. The rack 95, in conjunction with the gear 32, drives the support shaft 31 to rotate clockwise, thereby causing the support frame 3 to lift to the right. During the assembly of the seat frame, this achieves the following: Figure 1 The left and right sides are flipped in different directions and at different angles. At the same time, the toggle block 106 of the limiting component 10 is pulled, which drives the fixed adjusting rod 102 to move. The adjusting rod 102 drives the arc-shaped clamping plate 104 fixed at the end to disengage from the locking part 12, thereby allowing the connecting plate 2 to rotate 360 ​​degrees, thus changing the orientation of the seat frame during assembly and making the assembly operation of the seat frame more convenient. After releasing the toggle block 106, the adjusting rod 102, under the elastic force of the spring 105 and in conjunction with the limiting ring 103, causes the arc-shaped clamping plate 104 fixed at the end of the adjusting rod 102 to move. 04 engages with the rotating part 12, thereby keeping the position of the connecting plate 2 fixed and preventing displacement during seat frame assembly. When it is necessary to assemble seat frames of different sizes, the bolts fixing the connecting plate 2 can be removed to remove the connecting plate 2, making it easy to replace the connecting plate 2 of different sizes. Alternatively, if the rack 95 of the lifting component 9 does not mesh with the gear 32, the support frame 3 can be removed and replaced. The support frame 3 with the corresponding clamping component 4 position can be replaced according to the size of the seat frame, which improves the flexibility of assembly and saves costs.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car seat frame assembly tray mechanism, comprising a base plate (1), characterized in that: The top center of the base plate (1) is fixedly connected to a support ring (11), the support ring (11) is rotatably sleeved on a rotating part (12), a limiting component (10) is provided on one side of the rotating part (12), the limiting component (10) is fixedly connected to one side of the top of the base plate (1), the top of the rotating part (12) is fixedly installed with a connecting plate (2) by bolts, the top four corners of the connecting plate (2) are respectively fixedly connected to support columns (8), the top of the support column (8) is provided with an arc-shaped opening (81), a support shaft (31) is rotatably provided in the arc-shaped opening (81), one end of the support shaft (31) is respectively fixedly connected to both sides of the support frame (3), the top two sides of the support frame (3) are respectively fixedly connected to clamping components (4), and a transmission shaft (5) is rotatably connected between the two clamping components (4) on the same side. The clamping components (4) are arranged symmetrically in pairs. The clamping components (4) include a support housing (41), a bidirectional screw (42), a worm gear (43), a worm (44), a movable plate (45), and a clamping plate (46). The bottom end of the support housing (41) is fixedly connected to the support frame (3). The bottom of the support housing (41) is rotatably mounted with the worm (44). One end of the worm (44) is fixedly connected to one end of the transmission shaft (5). The other end of the worm (44) is fixedly connected to the handwheel (6). The top of the worm (44) is meshed with the worm gear (43). The worm gear (43) is fixedly sleeved on the middle part of the bidirectional screw (42). The two sides of the bidirectional screw (42) are respectively connected to the movable plate (45) through a threaded structure. The movable plate (45) is slidably installed in the support housing (41). The top of the movable plate (45) is fixedly connected to the clamping plate (46). The top two sides of the connecting plate (2) are respectively provided with lifting components (9), and the opposite side of the lifting components (9) is respectively provided with adjustment components (7), and the adjustment components (7) are fixedly connected to the lifting components (9). The end of the support shaft (31) away from the support frame (3) is fixedly connected to a gear (32). The gear (32) is rotatably disposed between the support column (8) and the lifting assembly (9). The lifting assembly (9) includes a support plate (91), a guide slide rod (92), an adjusting slide plate (93), a side slide plate (94), and a rack (95). The adjusting slide plate (93) is movably disposed on both sides of the top of the connecting plate (2). Several guide slide rods (92) are fixedly connected to both sides of the adjusting slide plate (93). The guide slide rods (92) are slidably connected to the support plate (91). The support plate (91) is fixedly connected to the top of the connecting plate (2). The end of the guide slide rod (92) away from the adjusting slide plate (93) is fixedly connected to the side slide plate (94). The side slide plate (94) is slidably disposed on the top of the connecting plate (2). The top of the opposite side of the side slide plate (94) is fixedly connected to the rack (95).

2. The automotive seat frame assembly tray mechanism according to claim 1, characterized in that: The connecting plate (2) has several circular holes. The connecting plate (2) is fixedly connected to the rotating part (12) by bolts passing through the circular holes. The support frame (3) has a square-shaped structure, and the arc-shaped opening (81) has a J-shaped structure.

3. The automotive seat frame assembly tray mechanism according to claim 1, characterized in that: The support housing (41) has a U-shaped structure. The two ends of the bidirectional screw (42) are rotatably connected to the support housing (41). The length direction of the bidirectional screw (42) is perpendicular to the length direction of the worm (44).

4. The automotive seat frame assembly tray mechanism according to claim 1, characterized in that: The rack (95) meshes with the gear (32), and the guide slide rod (92) has four symmetrically arranged on both sides of the adjusting slide plate (93). The guide slide rods (92) on both sides of the adjusting slide plate (93) are arranged parallel to each other.

5. The automotive seat frame assembly tray mechanism according to claim 4, characterized in that: The adjustment assembly (7) includes a first fixing block (71), a support cylinder (72), a threaded ring (73), a threaded rod (74), and a second fixing block (75). The first fixing block (71) is fixedly connected to the support plate (91). The first fixing block (71) is fixedly connected to one end of the support cylinder (72). The other end of the support cylinder (72) is rotatably connected to the threaded ring (73). The threaded ring (73) is sleeved on the threaded rod (74) through a threaded structure. One end of the threaded rod (74) is fixedly connected to the second fixing block (75). The second fixing block (75) is fixedly connected to the adjustment slide plate (93). The other end of the threaded rod (74) is slidably sleeved on the support cylinder (72).

6. The automotive seat frame assembly tray mechanism according to claim 1, characterized in that: The rotating part (12) has a toothed tooth (122) on its periphery, and the top of the rotating part (12) has a plurality of threaded holes (121) recessed therein.

7. The automotive seat frame assembly tray mechanism according to claim 6, characterized in that: The limiting assembly (10) includes a limiting housing (101), an adjusting rod (102), a limiting ring (103), an arc-shaped locking plate (104), a spring (105), and a toggle block (106). The limiting housing (101) is fixedly connected to the top of the base plate (1). The limiting housing (101) has a hollow cavity with a movable chamber and a limiting ring (103) is movably disposed inside the cavity. The limiting ring (103) is fixedly sleeved on the adjusting rod (102), and the adjusting rod (102) is slidably connected to the limiting housing (104). 101), one end of the adjusting rod (102) is fixedly connected to the actuating block (106), and the other end of the adjusting rod (102) is fixedly connected to the arc-shaped clamping plate (104). The arc-shaped clamping plate (104) has a slot on the end face away from the adjusting rod (102) that cooperates with the clamping teeth (122). A spring (105) is movably sleeved on the adjusting rod (102). One end of the spring (105) is fixedly connected to the limiting ring (103), and the other end of the spring (105) is fixedly connected to the inner wall of the movable cavity.

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