Clamping and positioning mechanism for strength test of automobile seat framework

Abstract

The utility model discloses an automobile seat framework strength test clamping and positioning mechanism which comprises a workbench, a carrier plate, a clamping mechanism, a first linear sliding rail, a first guide block, a second linear sliding rail, a drag chain transmission mechanism and a second sliding block, and the first guide block, the second linear sliding rail and the drag chain transmission mechanism are all fixedly installed on the workbench; the clamping mechanism is composed of a first outer shell, a second outer shell, a second telescopic air cylinder, a third linear sliding rail, an L-shaped base, a second limiting pin, a bearing base and a limiting pin sleeve. According to the mechanism, the carrier plate is driven by the drag chain transmission mechanism to move outwards to exceed the workbench, interference and collision of the strength testing assembly in the workbench on the seat framework are reduced, a single operator can conveniently clamp and fix the seat framework, the seat framework is conveniently assembled and disassembled through the clamping mechanism, and the working efficiency is improved. The clamping and positioning efficiency can be improved, and then the efficiency of strength testing operation of the automobile seat framework is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile seat testing, in particular to a clamping and positioning mechanism for automobile seat frame strength testing. Background Art

[0002] After the car seat frame is processed and formed, it is assembled with the whole car. Before assembly, the strength of the car seat frame and the strength of the mounting holes need to be tested. The whole machine can be assembled only after the test is qualified. The existing strength testing equipment fixes the car seat frame inside it and then performs a pressure strength test. Since the car seat frame is mostly made of aluminum alloy and is heavy, it takes two operators to move the car seat frame into the strength testing equipment, resulting in increased personnel costs and low testing efficiency. In addition, since the test components in the strength testing equipment will cause interference and collision when clamping and positioning the seat frame, it will also affect the efficiency of clamping and positioning the seat frame during the strength test. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a mechanism in which a test carrier plate can be extended outwards so as to clamp and position a car seat frame.

[0004] In order to solve the above technical problems, the present invention is implemented through the following technical solutions: comprising a workbench, a carrier plate, a clamping mechanism, a first linear slide rail, a first guide block, a second linear slide rail, a drag chain transmission mechanism and a second slider, wherein the first guide block, the second linear slide rail and the drag chain transmission mechanism are all fixedly mounted on the workbench, the first linear slide rail is slidably mounted in the first guide block in an anti-slip manner, the second slider is slidably mounted on the second linear slide rail, the carrier plate is fixedly connected to the first linear slide rail and the second slider, the transmission chain of the drag chain transmission mechanism is fixedly connected to the second slider, and the clamping mechanism is symmetrically arranged on both sides of the outer end of the carrier plate;

[0005] The clamping mechanism is composed of a first outer shell, a second outer shell, a first telescopic cylinder, a third linear slide rail, an L-shaped base, a first limit pin, a bearing seat and a limit pin sleeve. The first outer shell, the second outer shell and the third linear slide rail are all fixedly mounted on the carrier plate. The L-shaped base is slidably mounted on the third linear slide rail. The L-shaped base is located in the first outer shell. The first limit pin is fixedly mounted on the L-shaped base. The bearing seat is fixedly mounted on the second outer shell. The limit pin sleeve is arranged in cooperation with the first limit pin and fixedly mounted on the bearing seat. The cylinder body of the first telescopic cylinder is fixedly mounted on the second outer shell. The first telescopic cylinder is fixedly connected to the L-shaped base.

[0006] It also includes a limiting mechanism, which consists of a guide block, a second limiting pin and a second telescopic cylinder. The cylinder body and the guide block of the second telescopic cylinder are fixedly mounted on the workbench, the second limiting pin is slidably mounted in the guide block, the piston rod of the second telescopic cylinder is fixedly connected to the bottom of the second limiting pin, and a limiting hole corresponding to the second limiting pin is provided on the carrier plate.

[0007] Preferably, weight-reducing holes are provided on the carrier plate.

[0008] Preferably, support and adjustment feet are screwed onto the four corners of the bottom of the workbench.

[0009] Compared with the prior art, the benefits of the present invention are as follows: the present invention drives the carrier plate to move outward to a state beyond the workbench through the drag chain transmission mechanism, thereby reducing the interference and collision of the strength test components in the workbench with the seat frame, enabling a single operator to clamp and fix the seat frame, facilitating assembly and disassembly of the seat frame through the clamping mechanism, improving the efficiency of clamping and positioning, and thereby improving the efficiency of the strength test operation of the automobile seat frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings.

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a schematic diagram of the external structure of the clamping mechanism.

[0013] Figure 3 It is a schematic diagram of the internal structure of the clamping mechanism.

[0014] Figure 4 It is a schematic diagram of the installation structure of the limit mechanism and the drag chain transmission mechanism. DETAILED DESCRIPTION

[0015] The utility model is described in detail below in conjunction with specific implementation methods:

[0016] like Figures 1 to 4The illustrated embodiment of a clamping and positioning mechanism for testing the strength of a car seat skeleton comprises a workbench 1, a carrier plate 2, a clamping mechanism 3, a first linear slide rail 4, a first guide block 5, a second linear slide rail 6, a drag chain transmission mechanism 13 and a second slider 14. The first guide block 5, the second linear slide rail 6 and the drag chain transmission mechanism 13 are all fixedly mounted on the workbench 1. The first linear slide rail 4 is slidably mounted in the first guide block 5 in an anti-slip manner. The second slider 14 is slidably mounted on the second linear slide rail 6. The carrier plate 2 is fixedly connected to the first linear slide rail 4 and the second slider 14. The transmission chain of the drag chain transmission mechanism 13 is fixedly connected to the second slider 14. The clamping mechanism 3 is symmetrically arranged on both sides of the outer end of the carrier plate 2.

[0017] The clamping mechanism 3 is composed of a first outer shell 31, a second outer shell 32, a first telescopic cylinder 7, a third linear slide 8, an L-shaped base 81, a first limit pin 82, a bearing seat 9 and a limit pin sleeve 91. The first outer shell 31, the second outer shell 32 and the third linear slide 8 are all fixedly mounted on the carrier plate 2. The L-shaped base 81 is slidably mounted on the third linear slide 8. The L-shaped base 81 is located in the first outer shell 31. The first limit pin 82 is fixedly mounted on the L-shaped base 81. The bearing seat 9 is fixedly mounted on the second outer shell 32. The limit pin sleeve 91 is matched with the first limit pin 82 and fixedly mounted on the bearing seat 9. The cylinder body of the first telescopic cylinder 7 is fixedly mounted on the second outer shell 32. The first telescopic cylinder 7 is fixedly connected to the L-shaped base 81.

[0018] The present invention also includes a limiting mechanism, which is composed of a guide block 11, a second limiting pin 12 and a second telescopic cylinder 15. The cylinder body and the guide block 11 of the second telescopic cylinder 15 are fixedly mounted on the workbench 1. The second limiting pin 12 is slidably mounted in the guide block 11. The piston rod of the second telescopic cylinder 15 is fixedly connected to the bottom of the second limiting pin 12. A limiting hole 21 corresponding to the second limiting pin 12 is provided on the carrier plate 2. After the carrier plate 2 moves to a preset position driven by the drag chain transmission mechanism 13, the piston rod of the second telescopic cylinder 15 extends to push the second limiting pin 12 to move downward along the guide block 11 until the second limiting pin 12 is slidably embedded in the limiting hole 21 of the carrier plate 2. The carrier plate 2 can be positioned after reaching the preset position, thereby reducing the load on the drag chain transmission mechanism 13 during the strength test and extending the service life of the drag chain transmission mechanism 13.

[0019] The carrier plate 2 is provided with weight-reducing holes 20 to reduce the weight of the carrier plate 2 and the material cost.

[0020] The four corners of the bottom of the workbench 1 are screwed with support adjustment feet 101, and the stability of the workbench 1 after being placed can be adjusted by rotating the support adjustment feet 101.

[0021] The drag chain transmission mechanism 13 drives the second slider 14 to move along the second linear slide rail 6. The carrier plate 2 moves outward along the second linear slide rail 6 under the driving action of the drag chain transmission mechanism 13. The connecting plates on both sides of the seat frame 10 are placed between the first limit pin 82 and the limit pin sleeve 91. The piston rod composed of the second telescopic cylinder 15 is started to retract, driving the L-shaped base 81 to move outward along the third linear slide rail 8. The first limit pin 82 on the L-shaped base 81 slides through the mounting holes on the connecting plates on both sides of the seat frame 10 and is embedded in the limit pin sleeve 91. The seat frame 10 is pressed and clamped by the limit pin sleeve 91. The drag chain transmission mechanism 13 drives the carrier plate 2 to move inward to the test position again for strength testing.

Claims

1. A clamping and positioning mechanism for testing the strength of a car seat frame, characterized in that: The invention comprises a workbench (1), a carrier plate (2), a clamping mechanism (3), a first linear slide rail (4), a first guide block (5), a second linear slide rail (6), a drag chain transmission mechanism (13) and a second slider (14), wherein the first guide block (5), the second linear slide rail (6) and the drag chain transmission mechanism (13) are all fixedly mounted on the workbench (1), the first linear slide rail (4) is slidably mounted in the first guide block (5) in an anti-slip manner, the second slider (14) is slidably mounted on the second linear slide rail (6), the carrier plate (2) is fixedly connected to the first linear slide rail (4) and the second slider (14), the transmission chain of the drag chain transmission mechanism (13) is fixedly connected to the second slider (14), and the clamping mechanism (3) is symmetrically arranged on both sides of the outer end of the carrier plate (2); The clamping mechanism (3) is composed of a first outer shell (31), a second outer shell (32), a first telescopic cylinder (7), a third linear slide rail (8), an L-shaped base (81), a first limit pin (82), a bearing seat (9) and a limit pin sleeve (91). The first outer shell (31), the second outer shell (32) and the third linear slide rail (8) are all fixedly mounted on the carrier plate (2). The L-shaped base (81) is slidably mounted on the third linear slide rail (8). The L-shaped base (81) is located in the first outer shell (31). The first limit pin (82) is fixedly mounted on the L-shaped base (81). The bearing seat (9) is fixedly mounted on the second outer shell (32). The limit pin sleeve (91) is arranged in cooperation with the first limit pin (82) and is fixedly mounted on the bearing seat (9). The cylinder body of the first telescopic cylinder (7) is fixedly mounted on the second outer shell (32). The first telescopic cylinder (7) is fixedly connected to the L-shaped base (81).

2. The automobile seat frame strength test clamping and positioning mechanism according to claim 1, characterized in that: The invention also comprises a limiting mechanism, the limiting mechanism comprising a guide block (11), a second limiting pin (12) and a second telescopic cylinder (15), the cylinder body and the guide block (11) of the second telescopic cylinder (15) are fixedly mounted on the workbench (1), the second limiting pin (12) is slidably mounted in the guide block (11), the piston rod of the second telescopic cylinder (15) is fixedly connected to the bottom of the second limiting pin (12), and a limiting hole (21) corresponding to the second limiting pin (12) is provided on the carrier plate (2).

3. The automobile seat frame strength test clamping and positioning mechanism according to claim 1, characterized in that: The carrier plate (2) is provided with weight-reducing holes (20).

4. The automobile seat frame strength test clamping and positioning mechanism according to claim 1, characterized in that: Support adjustment feet (101) are screwed and installed at the four corners of the bottom of the workbench (1).

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