Automobile seat calibration equipment

Abstract

The utility model belongs to the technical field of calibration equipment processing and production, and discloses automobile seat calibration equipment. Comprising a frame with an accommodating space; the seat tool is arranged in the accommodating space and is used for placing a to-be-detected seat; the loading mechanism is arranged in the accommodating space, is positioned above the seat tool, and applies Y-direction external force to the to-be-detected seat; the loading mechanism further comprises a loading part facing the seat tool; the pressing block is mounted on the bottom surface of the loading part; the tilt angle sensor is used for detecting a cushion tilt angle of the to-be-detected seat; the pressure sensor is used for detecting the magnitude of applied Y-direction external force; and the test electric control cabinet is used for controlling the operation of the calibration equipment. External force can be applied to the seat, the inclination angle of the seat cushion of the seat can be detected, multi-parameter detection is achieved at a time, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of calibration equipment processing and production, in particular to an automobile seat calibration equipment. Background Art

[0002] Automobile calibration refers to using standard measuring instruments to detect the accuracy or precision of the equipment used to determine whether it meets the standards. In recent years, with the development of technology, more and more advanced technologies have been continuously applied to the automobile manufacturing industry. In order to enhance the competitiveness of products, enterprises have continuously innovated in performance and configuration, and quickly applied advanced control technologies to automobiles.

[0003] Especially, an OCS (Occupant Classification System) system is installed in the vehicle to ensure the correct deployment of the airbag in the event of a collision. This system needs to be calibrated after being installed on the seat. The calibration requirements of this system are as follows: the calibration equipment needs to be able to apply a force between 20 - 120 pounds, with a repeatability accuracy within ±0.5 pounds. In the initial stage of force application, there should be a 10 - 20% overshoot, and the force application speed must be kept consistent. The applied force should be stabilized to the target level, and a force of at least 3.5 seconds should be applied to the seat, and then calibration can be carried out.

[0004] To meet the above requirements, the rigidity of the equipment must be ensured, and the accuracy of the sensors used must meet the requirements. Because a force between 20 - 120 pounds needs to be applied, and the repeatability accuracy is within ±0.5 pounds, the inclination angle of the seat cushion and even the levelness of the equipment installation will affect the calibration. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides an automobile seat calibration equipment.

[0006] To achieve the above object, the utility model adopts the following technical solution: an automobile seat calibration equipment, including

[0007] A frame having an accommodation space;

[0008] A seat tooling disposed in the accommodation space for placing the seat to be detected;

[0009] A loading mechanism disposed in the accommodation space, above the seat tooling, for applying an external force in the Y direction to the seat to be detected; the loading mechanism further includes:

[0010] A loading part facing the seat tooling;

[0011] A pressure block installed on the bottom surface of the loading part;

[0012] An inclination sensor for detecting the inclination angle of the seat cushion of the seat to be detected;

[0013] A pressure sensor for detecting the magnitude of the external force applied in the Y direction.

[0014] A test electric control cabinet for controlling the operation of the calibration device. It can not only apply an external force to the seat, but also detect the inclination angle of the seat cushion, achieving multi-parameter detection at one time and improving the detection efficiency.

[0015] According to the present invention, further, the frame includes columns and an upper frame integrally connected to the columns; the upper frame has an installation space, and the loading mechanism is arranged in this installation space and has at least two contact surfaces with the inner walls forming this installation space to ensure the horizontality of the loading mechanism.

[0016] According to the present invention, further, the loading mechanism includes a first mounting plate, and the first mounting plate is mounted in the installation space; an X-axis cylinder, a Z-axis cylinder connected to the X-axis cylinder, and a Y-axis cylinder connected to the X-axis cylinder are mounted on the surface of the first mounting plate; the loading part is connected to the output end of the Y-axis cylinder.

[0017] According to the present invention, further, the upper frame includes adjacent first connecting plate and a second connecting plate; the inner side surfaces of the first connecting plate and the second connecting plate are used for mounting the loading mechanism.

[0018] According to the present invention, further, the upper frame includes adjacent first connecting plate and a second connecting plate; the inner side surfaces of the first connecting plate and the second connecting plate are connected to the first mounting plate; a corresponding Z-direction slideway matching the first mounting plate is arranged on the inner side surface of the first connecting plate, and an X-direction mounting groove is arranged on the inner side surface of the second connecting plate for connecting with the corresponding side edge of the first mounting plate for connection.

[0019] According to the present invention, further, a support plate extending in the Z direction is further arranged on the inner side surface of the second connecting plate, and the distance that the support plate extends in the Z direction corresponds to the sliding stroke of the loading mechanism relative to the first connecting plate.

[0020] According to the present invention, further, one side edge of the first mounting plate is fixedly connected to the mounting groove, and the first mounting plate is slidably connected to the second connecting plate in the Z direction.

[0021] According to the present invention, further, parallel Z-direction slide rails are arranged on the top surface of the first mounting plate, a second mounting plate is slidably connected to the slide rails, a Z-axis electric cylinder is arranged on one side of the Z-direction slide rails, and the Z-axis electric cylinder drives the second mounting plate to reciprocate along the Z-direction slide rails through a connecting component.

[0022] According to the present utility model, further, an X-direction slide rail is provided on the top surface of the second mounting plate. An X-axis electric cylinder is slidably connected to the X-direction slide rail. The X-axis electric cylinder is connected to a third mounting plate through a connecting component. A Y-axis electric cylinder is fixedly connected to the bottom surface of the third mounting plate. The Y-axis electric cylinder drives the loading part to move vertically in the Y direction, approaching or moving away from the seat placed on the seat tooling below it.

[0023] According to the present utility model, further, a leveling plate is provided at the bottom surface of the column to adjust the horizontal position of the frame.

[0024] Compared with the prior art, the beneficial effects of the present utility model are as follows: This calibration device can be installed not only on the factory assembly line but also offline, which can meet the calibration requirements, enable the seat to meet the factory requirements, and improve the passing rate of seat factory production.

[0025] The X-axis cylinder, Y-axis cylinder, and Z-axis cylinder cooperate to adjust the position of the loading mechanism according to the size and position of the seat, making the position of the external force application accurate and improving the force application accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall assembly structure schematic diagram of the automotive seat calibration device proposed by the present utility model;

[0027] Figure 2 is the frame structure schematic diagram of the automotive seat calibration device proposed by the present utility model;

[0028] Figure 3 is the structure schematic diagram of the loading mechanism of the automotive seat calibration device proposed by the present utility model.

[0029] Wherein:

[0030] 100 - frame, 110 - column, 120 - leveling plate, 130 - upper frame, 131 - first connecting plate, 132 - second connecting plate, 1321 - installation groove, 1322 - support plate, 200 - seat tooling, 300 - loading mechanism, 310 - first mounting plate, 320 - second mounting plate, 330 - Z-axis electric cylinder, 340 - X-axis electric cylinder, 350 - third mounting plate, 360 - fourth mounting plate, 370 - Y-axis electric cylinder, 380 - loading part, 381 - loading block, 382 - pressure sensor, 383 - inclination sensor, 384 - laser ranging sensor, 400 - test electric control cabinet, 500 - safety grating. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model. In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. The advantages and features of the present utility model will be clearer according to the following description and the claims. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present utility model.

[0032] Please refer to Figure 1 , in the embodiment of the present application, an automobile seat calibration device includes a frame 100 with a certain height. Inside the frame 100, a seat tooling 200 for placing a seat and a loading mechanism 300 located above the seat tooling 200 are provided. The loading mechanism 300 applies a loading force to the seat tooling 200 to detect whether it meets the factory requirements. A test electric control cabinet 400 is also provided on one side of the frame 100 for controlling, signal processing, and data recording and analysis of the calibration device. Among them, the seat tooling 200 is a prior art and will not be elaborated here as long as it can place the seat.

[0033] Specifically, please refer to Figure 2, the frame 100 includes four vertical columns 110 of equal length. A leveling plate 120 is installed at the bottom of each column 110. The leveling plate 120 is made of a steel plate with a thickness of at least 20 mm or more, and is used to adjust the horizontal position of the frame 100 after the equipment is installed. The upper half of the column 110 is also fixedly connected with an upper frame 130. The upper frame 130 is square and is composed of four connecting plates welded together to connect the four columns 110 into an integral structure. The four columns 110 are respectively located at the four outer top edges of the upper frame 130. Preferably, the connecting plate is 80 square steel sheet metal, and the thickness of the connecting plate is at least 5 mm. The inner surfaces of two adjacent first connecting plates 131 and second connecting plates 132 that make up the upper frame 130 are used to install the loading mechanism 300 described in detail below. The loading mechanism 300 can move in the X, Y, and Z directions to change its position relative to the seat placed on the seat tooling 200, ensuring the accurate application of the loading force. In order to ensure the levelness of the loading mechanism 300 installed thereon, the levelness and flatness of the installation surfaces of the first connecting plate 131 and the second connecting plate 132 should reach 0.02 mm. To facilitate the Z-direction position adjustment of the loading mechanism 300, a corresponding Z-direction slideway matching the loading mechanism 300 is provided on the inner surface of the first connecting plate 131, and an X-direction installation groove 1321 is provided on the inner surface of the second connecting plate 132 for positioning the first mounting plate 310 of the loading mechanism 300. A support plate 1322 extending in the Z direction is also provided on the inner surface of the second connecting plate 132. The distance that the support plate 1322 extends in the Z direction corresponds to the sliding stroke of the loading mechanism 300 relative to the first connecting plate 131, and is used to support the first mounting plate 310 of the loading mechanism 300, playing a supporting role to prevent it from detaching from the upper frame 130.

[0034] For the convenience of transportation and to avoid interference with the lamp bracket above the production line during the installation process, the column 110 is a height-adjustable column. Preferably, the column 110 is a split column, including at least two sections. The leveling plate 120 is fixedly connected to the bottom surface of the lower column section, and the two sections are fixedly connected by a flange. When transportation is required, the two column sections are separated, and after arriving at the installation site, the two column sections are fixedly connected by a flange.

[0035] In this embodiment, a safety light curtain 500 is also installed on the frame 100, mainly to ensure the safety of the operator and prevent personnel from intruding during the calibration test of the equipment, causing personal injury. The safety light curtain 500 is fixedly connected to the column 410, and its position corresponds to the position of the loading mechanism 300.

[0036] In this embodiment, please refer to Figure 3, the loading mechanism 300 includes a first mounting plate 310 fixedly connected to the mounting groove 1321. Two adjacent sides of the first mounting plate 310 are respectively connected to the first connecting plate 131 and the second connecting plate 132. Among them, one side edge of the first mounting plate 310 is fixedly connected to the mounting groove 1321, and the side of the first mounting plate 310 connected to the second connecting plate 132 has a slider matching the slideway arranged on the inner surface of the first connecting plate 131. Parallel Z-axis slideways are arranged on the top surface of the first mounting plate 310, and a second mounting plate 320 is slidably connected to the slideways. A Z-axis electric cylinder 330 is arranged on one side of the Z-axis slideways. The Z-axis electric cylinder 330 drives the second mounting plate 320 to reciprocate along the Z-axis slideways through a connecting component. An X-axis slideway is arranged on the top surface of the second mounting plate 320, and an X-axis electric cylinder 340 is slidably connected to the X-axis slideway. The X-axis electric cylinder 340 is connected to a third mounting plate 350 through a connecting component. The bottom surface of the third mounting plate 350 is connected with a vertically downward fourth mounting plate 360. A Y-axis electric cylinder 370 is connected to the surface of the fourth mounting plate 360. The X-axis electric cylinder 340 drives the third mounting plate 350 to reciprocate in the X direction, and further drives the Y-axis electric cylinder 370 connected to its lower surface to reciprocate in the X direction. The output end of the Y-axis electric cylinder 370 is connected to a loading part 380. The Y-axis electric cylinder 320 drives the loading part 310 to move vertically in the Y direction, approaching or departing from the seat placed on the seat tooling 200 below it.

[0037] A pressing block 381 is arranged at the bottom of the loading part 380, which contacts the seat and applies a loading force to the seat. The loading part 380 further includes a pressure sensor 382, an inclination sensor 383 and a laser distance sensor 384. The inclination sensor 383 detects the inclination angle of the seat cushion. The pressure sensor 382 should adopt a piezoelectric sensor suitable for measuring high-dynamic measurement, and select an appropriate range and accuracy according to requirements. Measure the angle θ between the central axis of the Y-axis electric cylinder 320 and the horizontal plane. According to F1 = F·cos(θ), where F1 is the loading force required by the OWS system, calculate the magnitude F of the force that the Y-axis electric cylinder 320 needs to apply, and collect it through the pressure sensor 382 to determine whether the magnitude of the applied force is accurate. Then, combine all the results to determine whether the detected seat meets the factory requirements, improving the qualified rate of factory products.

[0038] The above is only the preferred embodiment of the present invention, and it is not intended to limit the present invention in any form. Any person skilled in the art can smoothly implement the present invention according to the description shown in the accompanying drawings of the specification and the above description. However, any equivalent changes made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above, such as slight modifications, decorations and evolutions, are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An automotive seat calibration device, characterized in that: including a frame with an accommodation space; a seat tooling arranged in the accommodation space for placing a seat to be detected; a loading mechanism arranged in the accommodation space above the seat tooling for applying an external force in the Y direction to the seat to be detected; The loading mechanism further includes: a loading part facing the seat tooling; a pressure block installed on the bottom surface of the loading part; an inclination sensor for detecting the inclination angle of the seat cushion of the seat to be detected; a pressure sensor for detecting the magnitude of the external force applied in the Y direction; a test electric control cabinet for controlling the operation of the calibration device.

2. The vehicle seat calibration device according to claim 1, characterized in that: The frame includes columns and an upper frame integrally connected to the columns; the upper frame has an installation space, and the loading mechanism is arranged in this installation space and has at least two contact surfaces with the inner walls forming this installation space to ensure the horizontality of the loading mechanism.

3. The automotive seat calibration device according to claim 2, wherein: The loading mechanism includes a first mounting plate installed in the installation space; an X-axis cylinder, a Z-axis cylinder connected to the X-axis cylinder, and a Y-axis cylinder connected to the X-axis cylinder are installed on the surface of the first mounting plate; the loading part is connected to the output end of the Y-axis cylinder.

4. The automotive seat calibration device according to claim 2, characterized in that: The upper frame includes adjacent first connecting plate and second connecting plate; the inner side surfaces of the first connecting plate and the second connecting plate are used for installing the loading mechanism.

5. The vehicle seat calibration device according to claim 3, characterized in that: The upper frame includes adjacent first connecting plate and second connecting plate; the inner side surfaces of the first connecting plate and the second connecting plate are connected to the first mounting plate; a corresponding Z-direction slideway matching the first mounting plate is arranged on the inner side surface of the first connecting plate, and an X-direction installation groove is arranged on the inner side surface of the second connecting plate for connecting with the corresponding side edge of the first mounting plate for connection.

6. The automotive seat calibration device according to claim 5, wherein: A supporting plate extending in the Z direction is further arranged on the inner side surface of the second connecting plate, and the distance that the supporting plate extends in the Z direction corresponds to the sliding stroke of the loading mechanism relative to the first connecting plate.

7. The vehicle seat calibration device according to claim 5, characterized in that: One side edge of the first mounting plate is fixedly connected to the installation groove, and the first mounting plate is slidably connected to the second connecting plate in the Z direction.

8. The vehicle seat calibration device according to claim 7, characterized in that: Parallel Z-direction slide rails are arranged on the top surface of the first mounting plate, and a second mounting plate is slidably connected to the slide rails. A Z-axis electric cylinder is arranged on one side of the Z-direction slide rails, and the Z-axis electric cylinder drives the second mounting plate to reciprocate along the Z-direction slide rails through a connecting component.

9. The vehicle seat calibration device according to claim 8, wherein: An X-direction slide rail is arranged on the top surface of the second mounting plate, and an X-axis electric cylinder is slidably connected to the X-direction slide rail. The X-axis electric cylinder is connected to a third mounting plate through a connecting component, and a Y-axis electric cylinder is fixedly connected to the bottom surface of the third mounting plate. The Y-axis electric cylinder drives the loading part to move vertically in the Y direction, approaching or moving away from the seat placed on the seat tooling below it.

10. The automotive seat calibration device according to claim 2, characterized in that: A leveling plate is arranged at the bottom surface of the column for adjusting the horizontal position of the frame.

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