Fatigue testing device for seat adjusting rod

Abstract

The utility model discloses a seat adjusting rod fatigue testing device which comprises a rack, a support and a seat body, and an adjusting rod is arranged at the front end of the bottom of the seat body. A first air cylinder is vertically and upwards arranged on the support, a push block is arranged at the top of the first air cylinder, and the top of the push block abuts against the bottom of the adjusting rod. A proximity sensor is arranged on the push block, and a probe of the proximity sensor corresponds to the bottom of the adjusting rod. Inner sliding rails are arranged on the two sides of the bottom of the seat body respectively, and each inner sliding rail is provided with an outer sliding rail. The outer sliding rail is fixedly connected with the rack; and a driving device for driving the seat body to do linear reciprocating motion is arranged on the rack. According to the technical scheme provided by the utility model, the seat adjusting rod fatigue test device can carry out a fatigue test on the seat adjusting rod and can also carry out an abrasion test on the seat slide rail at the same time, the application of the device is expanded, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile accessory testing equipment technical field, especially a seat adjusting rod fatigue testing arrangement. BACKGROUND

[0002] The adjusting rod (or called "synchronous rod" and other names) of the bottom of the automobile seat needs to be tested for fatigue, and the slide rail of the bottom of the seat needs to be tested for wear. In the prior art, the adjusting rod and the slide rail are tested separately, and the testing efficiency is relatively low. In view of the above technical problems, the present application proposes a new testing device, which can realize the fatigue testing of the adjusting rod and the wear testing of the slide rail at the same time, thereby improving the testing efficiency. CONTENT OF THE UTILITY MODEL

[0003] In view of the above shortcomings of the prior art, the utility model aims at providing a seat adjusting rod fatigue testing device, which aims to solve the technical problem that the seat adjusting rod fatigue testing device in the prior art cannot simultaneously perform slide rail wear testing.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A seat adjusting rod fatigue testing device, comprising a rack, the rack is provided with a seat body, the front end of the bottom of the seat body is provided with an adjusting rod; the seat adjusting rod fatigue testing device further comprises a support, the first air cylinder is vertically upwardly arranged on the support, the top of the first air cylinder is provided with a push block, the top of the push block is in abutment with the bottom of the adjusting rod; the push block is provided with a proximity sensor, the probe of the proximity sensor corresponds to the bottom of the adjusting rod; the bottom of the seat body is provided with an inner slide rail on each side, each inner slide rail is provided with an outer slide rail; the outer slide rail is fixedly connected with the rack; the rack is provided with a driving device for driving the linear reciprocating motion of the seat body.

[0006] Further, in the seat adjusting rod fatigue testing device, the driving device is a motor, a lead screw is arranged on the rack, and the motor is used to drive the rotation of the lead screw.

[0007] Further, in the seat adjusting rod fatigue testing device, the support is connected with a lead screw nut on the lead screw; a second air cylinder is vertically upwardly arranged on the support, a limiting block is arranged at the top of the second air cylinder, and a limiting groove is arranged at the top of the limiting block; a limiting rod is arranged at the bottom of the seat body, and the limiting rod is located above the limiting groove.

[0008] Further, in the seat adjusting rod fatigue testing device, the support comprises a horizontal rod and a vertical rod; the horizontal rod is connected with the lead screw nut, the first air cylinder is connected with the vertical rod, and the second air cylinder is connected with the horizontal rod.

[0009] Further, the seat adjusting rod fatigue test device has the V-shaped groove.

[0010] Further, the seat adjusting rod fatigue test device has the V-shaped groove.

[0011] Beneficial effects: the seat adjusting rod fatigue test device provided by the utility model, compared with prior art, the first air cylinder is vertically arranged upwards on the support, a push block is arranged at the top of the first air cylinder, fatigue test of the adjusting rod is realized, in addition, the seat body is provided with inner slide rails on both sides of the bottom, and each inner slide rail is provided with an outer slide rail, the outer slide rail is fixedly connected with the rack, and wear test of the inner and outer slide rails is realized. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The utility model provides a seat adjusting rod fatigue test device Figure 1 .

[0013] Figure 2 The utility model provides a seat adjusting rod fatigue test device Figure 1 , the seat body is not drawn in the figure.

[0014] Figure 3 It is the perspective drawing of seat body, first air cylinder and second air cylinder.

[0015] Figure 4 It is Figure 1 the partial close -up view of S1 area in.

[0016] Figure 5 It is Figure 2 the partial close -up view of S2 area in.

[0017] Figure 6 It is Figure 3 the partial close -up view of S3 area in.

[0018] Mark in the figure:

[0019] 1, first air cylinder, 11, push block,

[0020] 2, second air cylinder, 21, limiting block, 210, limiting groove,

[0021] 61, the cross bar of support, 62, the vertical rod of support,

[0022] 71, motor, 72, lead screw, 73, lead screw nut,

[0023] 8, rack; 88, universal wheel; 89, foot cup;

[0024] 90, seat body; 91, adjusting rod; 92, inner slide rail; 93, outer slide rail; 94, limiting rod. DETAILED DESCRIPTION

[0025] The utility model provides a kind of seat adjusting rod fatigue testing device, to make the purpose, technical scheme and effect of the utility model more clear, definite, the following further detailed description of the utility model is made.It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0026] Please refer to Figures 1 to 6 The utility model provides a kind of seat adjusting rod fatigue testing device.Attached drawing is only used to explain the structure principle, not proportional with actual product.Attached drawing has only drawn the structure relevant to the invention point of the present application, for some conventional structure, has not been specifically drawn out.This paper described "first", "second" and so on just different naming to similar structure to facilitate exposition, not in limit the present application.

[0027] A kind of seat adjusting rod fatigue testing device, including rack 8, rack is connected with seat body 90, and the front end of the bottom of seat body is provided with adjusting rod 91;Seat adjusting rod fatigue testing device further includes support, and support is vertically set up first air cylinder 1 upwards, and the top of first air cylinder is provided with push block 11, and the top of the push block corresponds with the bottom of adjusting rod;Push block is provided with proximity sensor (not shown in the figure), and the probe of the proximity sensor corresponds with the bottom of adjusting rod;The both sides of the bottom of seat body are provided with inner slide rail 92 respectively, and each inner slide rail is provided with outer slide rail 93 respectively;Outer slide rail is fixedly connected with rack;Rack is provided with driving device for driving seat body linear reciprocating motion.

[0028] The probe of proximity sensor is vertically set up on the top of push block, but the top of the probe of proximity sensor is not higher than the top of push block, so that the probe of proximity sensor does not directly abut against adjusting rod, to ensure that push block works normally.

[0029] The above-mentioned seat body can be just a framework, can be a nearly complete seat, can be just a seat model, not limited here, because seat body itself is not the invention point of the present application.

[0030] The above-mentioned driving device has multiple implementation ways, as a kind of preferred, the driving device is motor 71, and rack is provided with screw rod 72, and motor is used to drive the rotation of the screw rod.Seat body linear reciprocating motion is driven by the mode of motor driving screw rod rotation, and it has good stability.

[0031] In actual application, the seat body can be fixedly connected with the screw nut on the screw rod to realize the linear reciprocating motion of the seat body. Here, a new scheme is provided: the bracket is connected with the screw nut 73 on the screw rod; the second cylinder 2 is vertically arranged upward on the bracket, the top of the second cylinder is provided with a limiting block 21, the top of the limiting block is provided with a limiting groove 210; the seat body is provided with a limiting rod 94 at the bottom, and the limiting rod is located above the limiting groove. In use, the piston rod of the second cylinder moves upward, so that the limiting rod is clamped in the limiting groove, and the linear reciprocating motion of the screw nut and the bracket drives the linear reciprocating motion of the seat body. The advantage of this arrangement is that the seat body is not directly connected with the screw nut, which facilitates the disassembly and assembly of the seat body.

[0032] Preferably, the bracket comprises a horizontal rod 61 and a vertical rod 62; the horizontal rod is connected with the screw nut, the first cylinder is connected with the vertical rod, and the second cylinder is connected with the horizontal rod. This arrangement makes the bracket simple in structure, easy to realize, and small in occupied installation space.

[0033] Preferably, the bottom of the rack is provided with a plurality of foot cups 89 and a plurality of universal wheels 88. This arrangement enables the seat adjustment rod fatigue test device to be conveniently moved, and when moved to a suitable position, the adjustment foot cup can be adjusted until the universal wheel is suspended.

[0034] In actual use, the linear reciprocating motion of the seat body and the action of the first cylinder are independent. The continuous forward and backward motion of the seat body and the linear reciprocating motion of the inner slide rail in the groove of the outer slide rail are used to test whether the inner slide rail and the outer slide rail are worn out within a specified time or number of times. The first cylinder drives the push block to repeatedly extend upward and retract, so as to test whether the adjustment rod is fatigued within a specified number of times. Under normal circumstances, after the first cylinder drives the push block to retract downward, the adjustment rod resets downward under the action of its own elastic force, so that it can be detected by the proximity sensor; if the adjustment rod fails due to breakage or other reasons, after the first cylinder drives the push block to retract downward, the adjustment rod cannot reset and cannot be detected by the proximity sensor.

[0035] It can be understood that, for those skilled in the art, equivalent replacement or change can be made according to the technical scheme and the utility model concept of the utility model, and all these changes or replacements shall belong to the protection scope of the utility model.

Claims

1. A seat track fatigue test apparatus comprising a frame, characterised in that: The seat body is arranged on the frame, and the front end of the bottom of the seat body is provided with an adjusting rod; the seat adjusting rod fatigue test device further comprises a support, a first air cylinder is vertically upwardly arranged on the support, a push block is arranged on the top of the first air cylinder, the top of the push block is in abutment with the bottom of the adjusting rod; a proximity sensor is arranged on the push block, the probe of the proximity sensor corresponds to the bottom of the adjusting rod; inner slide rails are respectively arranged on the two sides of the bottom of the seat body, and outer slide rails are respectively arranged on each inner slide rail; the outer slide rails are fixedly connected with the frame; a driving device for driving the linear reciprocating motion of the seat body is arranged on the frame.

2. The seat track fatigue test apparatus of claim 1, wherein: The driving device is a motor, a screw rod is arranged on the frame, and the motor is used for driving the rotation of the screw rod.

3. The seat track fatigue test apparatus of claim 1 or 2, wherein: The support is connected with a screw nut on the screw rod; a second air cylinder is vertically upwardly arranged on the support, a limiting block is arranged on the top of the second air cylinder, and a limiting groove is arranged on the top of the limiting block; a limiting rod is arranged on the bottom of the seat body, and the limiting rod is located above the limiting groove.

4. The seat track fatigue test apparatus of claim 3, wherein: The support comprises a horizontal rod and a vertical rod; the horizontal rod is connected with the screw nut, the first air cylinder is connected with the vertical rod, and the second air cylinder is connected with the horizontal rod.

5. The seat track fatigue test apparatus of claim 3, wherein: The limiting groove is a V-shaped groove.

6. The seat track fatigue test apparatus of claim 1, wherein: A plurality of foot cups and a plurality of universal wheels are arranged on the bottom of the frame.

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