Automobile seat coil spring assembling device

Abstract

The utility model relates to an automobile seat coil spring assembling device, which belongs to the field of automobile seat assembling and comprises a first base, a first motor sliding table, a seat positioning clamp, a first guide rail, a screw rod, a coil spring tightening mechanism, a first rotary table and a second base. The coil spring tightening mechanism comprises a sliding base, an air cylinder, a second rotary table, a second guide rail and a second motor. The second motor is fixedly arranged on the second rotary table; the right coil spring tightening head and the left coil spring tightening head are respectively connected with a second motor on two sides; due to the fact that the seat positioning clamp is arranged on the first rotary table, when coil springs need to be installed on the left side or the right side or the two sides of a seat, only the first rotary table needs to be rotated, and the coil springs can be installed by being matched with a left coil spring tightening head and a right coil spring tightening head at the two ends of a second motor arranged on the second rotary table. The left coil spring tightening head and the right coil spring tightening head can be matched only by rotating the second rotary table, coil springs can be installed on any single side or two sides of a seat, manual coil spring winding is not needed any more, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile seat assembly, in particular to an automobile seat coil spring assembly device. Background Art

[0002] A coil spring is required between the backrest connector and the seat cushion connector of a car seat. After the lock is released, the elasticity of the coil spring causes the reclined backrest connector to pull the seat back back to its normal angle. This requires the coil spring to be pre-tightened and then assembled into the appropriate position. Prior art devices have used a motor and gears to drive a coil spring tightening head to pre-tighten the coil spring before assembling it into the appropriate position. However, with the development of new car seat types, some seats require coil springs to be installed on one side, while others require them to be installed on both sides. Prior art coil spring installation devices can only install coil springs on one side, requiring traditional manual installation for the other side. This is time-consuming and labor-intensive, and manual assembly of the springs can easily injure workers. Summary of the Invention

[0003] The present invention aims to solve the deficiencies of the existing technology and develops a coil spring assembly device for a car seat. The technical solution adopted by the present invention is: a coil spring assembly device for a car seat, characterized in that it includes a first base 1, a first motor 2, a slide 3, a seat positioning fixture 4, a first guide rail 5, a screw rod 7, a coil spring tightening mechanism 8, a first turntable 10 and a second base 15; the first motor 2 and the first guide rail 5 are respectively fixedly arranged on the first base 1; the screw rod 7 is connected to the first motor 2; the slide 3 is slidably connected to the first guide rail 5 and is threadedly connected to the screw rod 7; the first turntable 10 is rotatably connected to the slide 3; the first positioning pin 6 can be inserted into the first turntable 10 and the slide 3 to lock the two; the seat positioning fixture 4 is fixedly arranged on the first turntable 10; the second base 15 is fixedly arranged on the first base 1; the coil spring tightening mechanism 8 is arranged on The second base 15 includes a sliding seat 11, a cylinder 12, a second turntable 14, a second guide rail 16 and a second motor 17; the cylinder 12 and the second guide rail 16 are respectively fixedly arranged on the second base 15; the sliding seat 11 is fixedly connected to the piston rod of the cylinder 12 and is slidably connected to the second guide rail 16; the second turntable 14 is rotatably connected to the sliding seat 11; the second locating pin 13 can be inserted into the second turntable 14 and the sliding seat 11 to lock the two; the second motor 17 is fixedly arranged on the second turntable 14; the first clamp 18 and the second clamp 20 are respectively fixedly connected to the outer casing on both sides of the second motor 17; the right coil spring tightening head 9 and the left coil spring tightening head 19 are respectively connected to the second motor 17 on both sides; the protective cover 28 is provided on the second base 15.

[0004] The benefits of the present invention are as follows: 1. Since the seat positioning fixture is arranged on the first turntable, when it is necessary to install the coil spring on the left side, right side or both sides of the seat, it is only necessary to rotate the first turntable. By cooperating with the left and right coil spring tightening heads at both ends of the second motor arranged on the second turntable, it is only necessary to rotate the second turntable to match the left and right coil spring tightening heads, thereby realizing the installation of coil springs on any one side or both sides of the seat, eliminating the need for manual coil spring tightening and improving installation efficiency; 2. Since a protective cover is provided outside the coil spring tightening mechanism, it effectively avoids damage to workers caused by accidental popping out of the coil spring, thereby improving the safety of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1 This is a schematic diagram of the structure of a car seat coil spring assembly device of the utility model;

[0006] Figure 2 yes Figure 1 The structure of the coil spring tightening mechanism in the enlarged front view is shown when the left coil spring tightening head is facing the seat;

[0007] Figure 3 yes Figure 1 Schematic diagram of the structure of the coil spring tightening mechanism in the top view. When the left coil spring tightening head is facing the seat;

[0008] Figure 4 This is a schematic diagram of the structure of the seat positioning fixture of the utility model for clamping the seat. When the left side of the seat faces the coil spring tightening mechanism;

[0009] Figure 5 This is a front view of a coil spring tightening mechanism of the present invention with the coil spring installed in the left coil spring tightening head;

[0010] Figure 6 This is a schematic front view of the state in which the slide of the utility model moves the seat to the position corresponding to the coil spring tightening mechanism;

[0011] Figure 7 It is a top view schematic diagram of the state in which the slide of the utility model moves the seat to the position corresponding to the coil spring tightening mechanism;

[0012] Figure 8 This is a top view of the state in which the left coil spring tightening head of the utility model pushes the coil spring into the connecting plate assembly;

[0013] Figure 9 This is a schematic diagram of the main view of the coil spring when it is assembled on the connecting plate assembly;

[0014] Figure 10 This is a front view of the utility model when the first turntable rotates 180 degrees and the right side of the seat faces the coil spring tightening mechanism;

[0015] Figure 11This is a top view of the state in which the second turntable of the utility model rotates 180 degrees and the right coil spring tightening head faces the seat;

[0016] In the figure: 1 first base; 2 first motor; 3 slide; 4 seat positioning fixture; 5 first guide rail; 6 first positioning pin; 7 screw rod; 8 coil spring tightening mechanism; 9 right coil spring tightening head; 10 first turntable; 11 slide seat; 12 cylinder; 13 second positioning pin; 14 second turntable; 15 second base; 16 second guide rail; 17 second motor; 18 first clamp; 19 left coil spring tightening head; 20 second clamp; 21 coil spring; 22 seat; 23 connecting plate assembly; 24 backrest connecting plate; 25 clamping column; 26 seat cushion clamp; 27 seat cushion connecting plate; 28 protective cover. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] Refer to 1 to Figure 3 As shown, the utility model is a car seat spring assembly device comprising: a first base 1, a first motor 2, a slide 3, a seat positioning fixture 4, a first guide rail 5, a screw rod 7, a spring tightening mechanism 8, a first turntable 10 and a second base 15; the first motor 2 and the first guide rail 5 are respectively fixedly arranged on the first base 1; the screw rod 7 is connected to the first motor 2; the slide 3 is slidably connected to the first guide rail 5 and is threadedly connected to the screw rod 7; the first turntable 10 is rotatably connected to the slide 3; the first positioning pin 6 can be inserted into the first turntable 10 and the slide 3 to lock the two; the seat positioning fixture 4 is fixedly arranged on the first turntable 10; the second base 15 is fixedly arranged on the first base 1; the spring tightening mechanism 8 is arranged on the second The base 15 includes a sliding seat 11, a cylinder 12, a second turntable 14, a second guide rail 16 and a second motor 17; the cylinder 12 and the second guide rail 16 are respectively fixedly arranged on the second base 15; the sliding seat 11 is fixedly connected to the piston rod of the cylinder 12 and is slidably connected to the second guide rail 16; the second turntable 14 is rotatably connected to the sliding seat 11; the second locating pin 13 can be inserted into the second turntable 14 and the sliding seat 11 to lock the two; the second motor 17 is fixedly arranged on the second turntable 14; the first clamp 18 and the second clamp 20 are respectively fixedly connected to the outer casing on both sides of the second motor 17; the right coil spring tightening head 9 and the left coil spring tightening head 19 are respectively connected to the second motor 17 on both sides; the protective cover 28 is provided on the second base 15.

[0019] For specific operations, refer to Figures 4 to 9 First, if Figure 4 As shown, the worker clamps the seat 22 into the seat positioning fixture 4. In this embodiment, only the assembly of the left coil spring of the seat is taken as an example. After the seat 22 is clamped, as shown in FIG. Figure 5 As shown, the worker rotates the second turntable 14 so that the left coil spring tightening head 19 faces the seat, inserts the center of the coil spring 21 into the second clamping head 20, and inserts the outer end of the coil spring into the notch of the left coil spring tightening head 19. Then the worker operates the second motor 17 to rotate the left coil spring tightening head 19 counterclockwise 3 to 5 times in the figure to tighten the coil spring 21. Figure 6 As shown, the worker operates the first motor 2 to drive the screw 7 to rotate, so that the slide 3 moves along the first guide rail 5 toward the direction of the coil spring tightening mechanism 8 in the figure and reaches the preset position. At this time, Figure 7 As shown, the left coil spring tightening head 19 is aligned with the connecting plate assembly 23 of the seat 22, and then Figure 8 As shown, the worker operates the piston rod of the air cylinder 12 to extend, so that the sliding seat 11 drives the second motor 17 to move along the second guide rail 16 toward the connecting plate assembly 23 in the figure. The left coil spring tightening head 19 sends the tightened coil spring 21 into the connecting plate assembly 23, so that the center of the coil spring 21 enters the seat cushion clamping head 26. Then the worker operates the second motor 17 to rotate the left coil spring tightening head 19 slightly in the opposite direction, so that the outer end of the coil spring 21 is clamped on the clamping column 25. At this time, as shown in FIG. Figure 9 As shown, the elastic potential energy of coil spring 21 is released to the clamping post 25 and the seat clamp 26. The worker then retracts the piston rod of cylinder 12, completing the coil spring installation process. The mating relationship between the backrest and seat cushion connecting plates, as well as the coil spring tightening and installation process, are known from the prior art. In actual production, as the worker retracts the piston rod of the cylinder, the coil spring may pop out of the connecting plate assembly 23. In this case, the protective cover 28 effectively prevents the coil spring from injuring the worker.

[0020] After the coil spring is assembled on the left side of the seat 22 in this embodiment, the worker performs the reverse operation to return the seat 22 to the position shown in FIG. Figure 6 The location shown in .

[0021] Reference Figure 2 、 Figure 10 and Figure 11 If a coil spring needs to be installed on the right side of the seat, the worker will Figure 10 Pull out the first positioning pin 6 in the first turntable 10, rotate the first turntable 10 180 degrees, and then insert the first positioning pin 6 to lock the first turntable 10; then, the worker will Figure 2 Pull out the second positioning pin 13 and rotate the second turntable 14 180 degrees. Figure 11As shown, the right coil spring tightening head 9 is facing upward, that is, toward the seat. Following the above steps, the right-side coil spring assembly is complete. Coil springs are not distinguished by left or right, but the notches on the left and right coil spring tightening heads are mirror images. The rotation directions of the left and right coil spring tightening heads are also opposite. Otherwise, the coil spring assembly process on the right side of the seat is identical to that on the left side and will not be further described.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A car seat coil spring assembly device, characterized in that: It includes a first base (1), a first motor (2), a slide (3), a seat positioning fixture (4), a first guide rail (5), a screw rod (7), a coil spring tightening mechanism (8), a first turntable (10) and a second base (15); the first motor (2) and the first guide rail (5) are respectively fixedly arranged on the first base (1); the screw rod (7) is connected to the first motor (2); the slide (3) is slidably connected to the first guide rail (5) and is threadedly connected to the screw rod (7); the first turntable (10) is rotatably connected to the slide (3); the first positioning pin (6) can be inserted into the first turntable (10) and the slide (3) to lock the two; the seat positioning fixture (4) is fixedly arranged on the first turntable (10); the second base (15) is fixedly arranged on the first base (1); the coil spring tightening mechanism (8) is arranged on the second base (15), including a slide A movable seat (11), a cylinder (12), a second turntable (14), a second guide rail (16) and a second motor (17); the cylinder (12) and the second guide rail (16) are respectively fixedly arranged on the second base (15); the sliding seat (11) is fixedly connected to the piston rod of the cylinder (12) and is slidably connected to the second guide rail (16); the second turntable (14) is rotatably connected to the sliding seat (11); the second positioning pin (13) can be inserted into the second turntable (14) and the sliding seat (11) to lock the two; the second motor (17) is fixedly arranged on the second turntable (14); the first clamping head (18) and the second clamping head (20) are respectively fixedly connected to the housings on both sides of the second motor (17); the right coil spring tightening head (9) and the left coil spring tightening head (19) are respectively connected to the second motor (17) on both sides; and the protective cover (28) is covered on the second base (15).

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