Riveting equipment for center shaft of automobile seat angle adjuster

Abstract

The utility model provides press riveting equipment for a central shaft of an automobile seat angle adjuster, and belongs to the technical field of press riveting equipment. The problem that in the prior art, the assembling efficiency of an angle adjuster center shaft is low is solved. The press riveting equipment for the center shaft of the automobile seat angle adjuster comprises a rack and a sliding seat which can be arranged on the rack in a vertical moving mode, a lower riveting head is arranged on the rack, and the upper end of the lower riveting head is provided with an annular step part and a positioning hole which is located in the inner side of the annular step part and is formed in the vertical direction. The sliding base is provided with a vertically-arranged limiting column and an upper riveting head vertically opposite to the lower riveting head, the lower riveting head is sleeved with a floating block capable of vertically moving relative to the lower riveting head, a moving distance exists between the lower end of the floating block and the machine frame, and the floating block and the machine frame are connected through an elastic telescopic piece. The device has the advantage that the assembling efficiency of the angle regulator center shaft can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of riveting equipment, and relates to a riveting equipment for the central shaft of an automobile seat adjuster. Background Technique

[0002] An adjuster is a device installed on an automobile seat to realize the adjustment of the seat back angle. The adjuster usually includes an adjuster body and a central shaft. The adjuster body includes a disc, a circular gear disc, a small toothed plate, a cam, a lock tooth small disc spring and a housing. At present, the assembly of the adjuster body and the central shaft is mostly completed manually by workers, which is time-consuming and laborious. Summary of the Invention

[0003] The purpose of the utility model is to provide a riveting equipment for the central shaft of an automobile seat adjuster in view of the above problems existing in the prior art. The technical problem to be solved by the utility model is how to improve the assembly efficiency of the central shaft of the adjuster.

[0004] The purpose of the utility model can be achieved by the following technical solutions:

[0005] A riveting equipment for the central shaft of an automobile seat adjuster includes a frame and a sliding seat movably arranged on the frame up and down. It is characterized in that a lower riveting head is arranged on the frame. The upper end of the lower riveting head has an annular step portion and a positioning hole opened vertically inside the annular step portion. A vertically arranged limiting column and an upper riveting head opposite to the lower riveting head up and down are arranged on the sliding seat. A floating block that can move up and down relative to the lower riveting head is sleeved on the lower riveting head. There is a moving distance between the lower end of the floating block and the frame, and the two are connected by an elastic telescopic member.

[0006] During operation, the worker only needs to place the pre-connected central shaft and the adjuster body on the lower riveting head. Then the worker starts the booster cylinder. The booster cylinder drives the sliding seat to move downward. The upper riveting head and the two limiting columns on the sliding seat move downward synchronously. During the downward movement, the upper riveting head presses the central shaft into the adjuster body until the limiting column can no longer move downward. At this time, the floating block abuts against the frame, and the lower riveting head squeezes and flattens the square part below the central shaft to complete the pressing and squeezing of the central shaft, thus completing the riveting of the central shaft of the adjuster and realizing the automation of the adjuster assembly, and further improving the assembly efficiency of the central shaft of the adjuster;

[0007] At the same time, during the downward movement of the floating block, it is also always subjected to the radial thrust of the elastic telescopic member, so that the central shaft will not be displaced or tilted during the pressing process, thereby improving the pressing accuracy.

[0008] In the above-mentioned riveting device for the central axis of the car seat recliner, the floating block is provided with a guide hole with a limiting portion on the inner wall in the vertical direction, the frame is provided with a clearance hole arranged opposite to the guide hole, a guide pin whose lower end is fixedly connected to the frame is arranged in the guide hole, the guide pin is sleeved with the elastic telescopic member, the upper end of the elastic telescopic member abuts against the limiting portion, the lower end of the elastic telescopic member abuts against the bottom wall of the clearance hole, and under the action of the elastic telescopic member, the limiting portion abuts against the upper end of the guide pin. The above structure enables the floating block to move up and down better relative to the lower rivet head, and the floating block will not separate from the frame.

[0009] In the above-mentioned riveting device for the central axis of the car seat recliner, the elastic telescopic parts are multiple and are respectively arranged along the circumference of the floating block, so that the number and arrangement positions of the elastic telescopic parts and guide pins are more reasonable, so that the floating block can float up and down better.

[0010] In the above-mentioned riveting equipment for the central axis of the car seat recliner, the frame is also provided with a lifting block located below the lower rivet head and capable of moving up and down relative to the lower rivet head, and a limit block for forming a lateral movement limit for the lifting block. The frame has a lifting hole connected to the positioning hole up and down, and the upper end of the lifting block has a lifting column, and the lifting column can be inserted into the lifting hole in a manner that it can move up and down. After the assembly is completed, the lifting block can push the recliner upward by abutting against the central axis, so that it is convenient for workers to take the assembled recliner.

[0011] In the above-mentioned riveting device for the central axis of the car seat recliner, the frame also has a limit hole and a mounting hole opened vertically, the ejector block can be arranged in the limit hole so as to move up and down, a spring is arranged in the mounting hole, the upper end of the spring abuts against the lower end of the ejector block, and under the action of the spring, the ejector block can move upward relative to the lower rivet head and abut against the hole wall of the limit hole. After the assembly is completed, the ejector block can automatically eject the recliner upward, so that it is more convenient for workers to take the assembled recliner.

[0012] In the above-mentioned riveting device for the central axis of the car seat recliner, the top material block is in the shape of a long strip, the limit blocks are provided in two and are respectively arranged on the sides of the two ends of the top material block, and the springs are provided in multiple and are respectively arranged along the length direction of the top material block. The above-mentioned structure enables the top material block to move up and down better.

[0013] In the above-mentioned riveting device for the central axis of the car seat recliner, there are two limit posts, which are respectively located above the two ends of the top material block, so that the number and setting positions of the limit posts are more reasonable, so that the top material block can be pressed down better to force it to overcome the restoring force of the spring and move downward.

[0014] Compared with the prior art, the advantages of the riveting equipment for the central shaft of the vehicle seat adjuster are as follows: The riveting equipment for the central shaft of the vehicle seat adjuster can simultaneously complete two processes, namely, pressing the central shaft of the adjuster into place and squeezing and flattening (riveting open) the square part below the central shaft, thereby realizing the automation of the adjuster assembly and further improving the assembly efficiency of the central shaft of the adjuster. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic perspective view of the riveting equipment for the central shaft of the vehicle seat adjuster.

[0016] Figure 2 FIG. Figure 1 is a partial enlarged view of part A in FIG.

[0017] Figure 3 FIG. is a sectional view of the riveting equipment for the central shaft of the vehicle seat adjuster after removing the sliding seat and a part of the frame.

[0018] Figure 4 FIG. is a sectional view of the riveting equipment for the central shaft of the vehicle seat adjuster after removing the sliding seat and a part of the frame (including the adjuster).

[0019] In the figures, 1 is the frame; 1a is the relief hole; 1b is the ejector hole; 1c is the limit hole; 1d is the mounting hole; 2 is the sliding seat; 3 is the lower riveting head; 3a is the annular step portion; 3b is the positioning hole; 4 is the limit post; 5 is the upper riveting head; 6 is the floating block; 6a is the guiding hole; 6b is the limiting portion; 7 is the elastic telescopic member; 8 is the guiding pin; 9 is the ejector block; 9a is the ejector post; 10 is the limiting block; 11 is the spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following are specific embodiments of the present invention in combination with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0021] A riveting equipment for the central shaft of a vehicle seat adjuster, referring to Figures 1-4 , includes a frame 1 and a sliding seat 2 movably arranged up and down on the frame 1. A lower riveting head 3 is arranged on the frame 1. The upper end of the lower riveting head 3 has an annular step portion 3a and a positioning hole 3b located inside the annular step portion 3a and vertically opened. A vertically arranged limit post 4 and an upper riveting head 5 opposite to the lower riveting head 3 up and down are arranged on the sliding seat 2. A floating block 6 that can move up and down relative to it is sleeved on the lower riveting head 3. There is a moving distance between the lower end of the floating block 6 and the frame 1, and the two are connected by an elastic telescopic member 7.

[0022] Specifically, referring to Figures 1-4, the floating block 6 is vertically provided with a guide hole 6a having a limiting portion 6b on the inner wall, the frame 1 is provided with a clearance hole 1a arranged vertically opposite to the guide hole 6a, a guide pin 8 whose lower end is fixedly connected to the frame 1 is arranged in the guide hole 6a, the guide pin 8 is sleeved with the elastic telescopic member 7, the upper end of the elastic telescopic member 7 abuts against the limiting portion 6b, the lower end of the elastic telescopic member 7 abuts against the bottom wall of the clearance hole 1a, and under the action of the elastic telescopic member 7, the limiting portion 6b is arranged against the upper end of the guide pin 8. In this embodiment, it is preferred that the elastic telescopic member 7 has a plurality of parts and is arranged respectively along the circumference of the floating block 6; it is preferred that the upper rivet head 5 has a positioning groove (not shown in the figure) with a notch arranged downward, the positioning groove is arranged vertically opposite to the positioning hole 3b on the lower rivet head 3, and the positioning groove can be inserted into the central axis of the angle adjuster so that the upper rivet head 5 can better press down the central axis.

[0023] More specifically, the frame 1 is also provided with a booster cylinder (gas-liquid booster cylinder) and four guide rails arranged vertically, the four corners of the sliding seat 2 are respectively slidably mounted on the four guide rails, and the middle part of the sliding seat 2 is connected to the output shaft of the booster cylinder.

[0024] Further, refer to Figures 1-4 The frame 1 is also provided with a lifting block 9 located below the lower rivet head 3 and capable of moving up and down relative to the lower rivet head 3, and a limit block 10 for limiting the lateral movement of the lifting block 9. The frame 1 has a lifting hole 1b connected to the positioning hole 3b up and down, and the upper end of the lifting block 9 has a lifting column 9a, and the lifting column 9a can be inserted into the lifting hole 1b so as to be movably connected up and down.

[0025] Specifically, refer to Figures 1-4 The frame 1 also has a limiting hole 1c and a mounting hole 1d opened vertically. The top material block 9 can be movably arranged in the limiting hole 1c up and down. A spring 11 is arranged in the mounting hole 1d. The upper end of the spring 11 abuts against the lower end of the top material block 9. Under the action of the spring 11, the top material block 9 can move upward relative to the lower rivet head 3 and abut against the hole wall of the limiting hole 1c.

[0026] In this embodiment, the top material block 9 is preferably in the shape of an elongated strip, the limiting blocks 10 are provided in two and are respectively arranged on the sides of the two ends of the top material block 9, the springs 11 are provided in multiple and are respectively arranged along the length direction of the top material block 9; preferably, the limiting columns 4 are provided in two and are respectively located above the two ends of the top material block 9.

[0027] The following describes the working principle of the riveting equipment for the center axis of the car seat recliner:

[0028] First, the worker places the pre-connected central shaft and the adjuster body on the lower riveting head 3, where the adjuster body abuts against the floating block 6, and the central shaft is inserted into the positioning hole 3b of the lower riveting head 3 (refer to Figure 4 ). The annular step portion 3a forms a recessed space for the adjuster body to give way when it abuts against the floating block 6. Subsequently, the worker activates the booster cylinder. The booster cylinder arranged on the frame 1 drives the sliding seat 2 to move downward along the four guide rails of the frame 1. The upper riveting head 5 and the two limit posts 4 on the sliding seat 2 move downward synchronously. During the downward movement of the upper riveting head 5, the central shaft is pressed into the adjuster body. When the two limit posts 4 contact the ejector block 9, the booster cylinder boosts pressure, and the two limit posts 4 press down the ejector block 9 to force the ejector block 9 to move downward, enabling the upper riveting head 5 to continue pressing down the central shaft. Since the central shaft has been completely pressed into the adjuster body at this time, the central shaft can drive the adjuster body to move downward synchronously, and the adjuster body in turn forces the floating block 6 to move downward synchronously until the floating block 6 abuts against the frame 1. At this time, the lower riveting head squeezes and flattens the square part below the central shaft to complete the pressing and squeezing and flattening of the central shaft, thus completing the riveting of the adjuster central shaft;

[0029] Then, the booster cylinder drives the sliding seat 2 to move upward. The upper riveting head 5 and the two limit posts 4 move upward synchronously with the sliding seat 2. The two limit posts 4 disengage from the contact with the ejector block 9, and the upper riveting head 5 disengages from the contact with the central shaft. The ejector block 9 moves upward under the action of the spring 11. The ejector post 9a of the ejector block 9 located in the ejector hole 1b pushes the central shaft upward. At the same time, the floating block 6 moves upward under the action of the elastic telescopic member 7 and drives the adjuster to move upward synchronously, thus facilitating the worker to take the processed adjuster.

[0030] The specific embodiments described in this text are only examples to illustrate the spirit of the present utility model. Those skilled in the technical field to which the present utility model belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A riveting press for the central shaft of an automotive seat recliner, comprising a frame (1) and a sliding seat (2) movably arranged on the frame (1) in the up-and-down direction, characterized in that, The frame (1) is provided with a lower rivet head (3), the upper end of which has an annular step portion (3a) and a positioning hole (3b) located on the inner side of the annular step portion (3a) and opened vertically, the sliding seat (2) is provided with a vertically arranged limit column (4) and an upper rivet head (5) opposite to the lower rivet head (3) in vertical direction, the lower rivet head (3) is sleeved with a floating block (6) movable up and down relative to the lower rivet head, the lower end of the floating block (6) and the frame (1) have a movable spacing therebetween, and the two are connected via an elastic telescopic member (7).

2. The riveting equipment for the central shaft of an automotive seat recliner according to claim 1, characterized in that, The floating block (6) is vertically provided with a guide hole (6a) having a limiting portion (6b) on its inner wall; the frame (1) is provided with a clearance hole (1a) arranged vertically opposite to the guide hole (6a); a guide pin (8) whose lower end is fixedly connected to the frame (1) is arranged in the guide hole (6a); the guide pin (8) is sleeved with the elastic telescopic member (7); the upper end of the elastic telescopic member (7) abuts against the limiting portion (6b); the lower end of the elastic telescopic member (7) abuts against the bottom wall of the clearance hole (1a); and under the action of the elastic telescopic member (7), the limiting portion (6b) abuts against the upper end of the guide pin (8).

3. The riveting equipment for the central shaft of an automotive seat recliner according to claim 2, characterized in that, The elastic expansion and contraction parts (7) are in plurality and are respectively arranged along the circumference of the floating block (6).

4. A riveting press for the central shaft of an automotive seat recliner according to claim 1 or 2 or 3, characterized in that, The frame (1) is also provided with a lifting block (9) located below the lower rivet head (3) and capable of moving up and down relative to the lower rivet head (3), and a limit block (10) used to limit the lateral movement of the lifting block (9); the frame (1) is provided with a lifting hole (1b) connected to the positioning hole (3b) up and down; the upper end of the lifting block (9) is provided with a lifting column (9a), and the lifting column (9a) is inserted into the lifting hole (1b) in a manner that it can move up and down.

5. The riveting equipment for the central shaft of an automotive seat recliner according to claim 4, characterized in that, The frame (1) also has a limiting hole (1c) and a mounting hole (1d) opened vertically, the top material block (9) is arranged in the limiting hole (1c) so as to be movable up and down, a spring (11) is arranged in the mounting hole (1d), the upper end of the spring (11) abuts against the lower end of the top material block (9), and under the action of the spring (11), the top material block (9) can move upward relative to the lower rivet head (3) and abut against the hole wall of the limiting hole (1c).

6. The riveting equipment for the central shaft of an automotive seat recliner according to claim 5, characterized in that, The lifting block (9) is in the shape of an elongated strip, the limiting blocks (10) are provided in two numbers and are respectively arranged on the sides of the two ends of the lifting block (9), and the springs (11) are provided in multiple numbers and are respectively arranged along the length direction of the lifting block (9).

7. A riveting equipment for the central shaft of an automotive seat recliner according to claim 6, characterized in that, There are two limit columns (4), which are respectively located above the two ends of the top material block (9).

Images