Device and method for measuring boundary dimension of automobile seat

Abstract

The invention provides an automobile seat boundary dimension measuring device and method, and the device comprises an adjusting mechanism which is provided with a bearing seat which can move horizontally and / or in a lifting manner; the detection mechanism comprises a moving arm and a contact detection assembly, the contact detection assembly is connected to the moving arm, the contact detection assembly comprises a floating mandrel and a pressure sensor, one end of the floating mandrel can be in contact with the surface of the to-be-detected automobile seat, and the other end of the floating mandrel can push the pressure sensor; the central control mechanism comprises a central controller and a result feedback assembly, the adjusting mechanism and the moving arm are connected with the central controller, and the pressure sensor is in signal connection with the result feedback assembly. According to the invention, the detection mechanism can be in direct contact with the surface of the to-be-detected automobile seat, so that the influence of a packaging bag and other structures on a detection result can be fundamentally avoided. Compared with conventional visual inspection equipment, the visual inspection equipment has the advantages of being wide in application range, accurate in detection result, high in flexibility and controllability and the like.

Description

Technical Field

[0001] The invention relates to the technical field of measuring equipment, and in particular to an apparatus and method for measuring the outer dimensions of a car seat. Background Art

[0002] In the automotive manufacturing industry, seats are one of the key safety components, and the control of their dimensional accuracy is crucial to ensure passenger comfort and driving safety. At present, car seat manufacturers usually use high-precision non-contact measurement technology, such as visual camera systems, to detect the outer dimensions of seats. This technology uses a high-resolution camera to capture the image of the seat and analyzes the actual size of the seat through image processing software to achieve fast and accurate measurement of the seat size.

[0003] However, the existing visual camera measurement process has encountered a technical difficulty in practical application, that is, car seats are generally protected by plastic film packaging bags during production and transportation. Although this packaging method effectively prevents the seats from being worn and contaminated during the logistics process, it also poses significant challenges to dimensional measurement. Due to the transparency and reflective properties of plastic film packaging bags, it is difficult for the camera to penetrate the packaging material and directly capture the detailed outline of the seat when shooting.

[0004] In addition, factors such as wrinkles, dust, and light refraction and reflection on the surface of the packaging bag will interfere with the imaging quality of the visual system, resulting in inaccurate measurement data. The existence of these problems not only reduces the reliability of dimensional detection, but may also cause quality accidents on the production line and increase the company's quality control costs. What's more serious is that due to the inability to accurately measure, the seat may need to be unpacked and re-measured, which not only increases the complexity of the production process, but may also cause secondary contamination to the seat, affecting the quality of the final product. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem of inaccurate detection of the external dimensions of automobile seats in the prior art, and to provide an external dimension measuring device and method for automobile seats.

[0006] In order to solve the above technical problems, the present invention provides a car seat outer dimension measuring device, which includes: an adjustment mechanism, the adjustment mechanism is provided with a bearing seat, the car seat to be detected is arranged on the bearing seat, and the bearing seat can move horizontally and / or up and down; a detection mechanism, the detection mechanism includes a moving arm and at least one contact detection component, the at least one contact detection component is connected to the moving arm to move in accordance with the surface of the car seat to be detected, the contact detection component includes a floating core shaft and a pressure sensor, one end of the floating core shaft can contact the surface of the car seat to be detected, and the other end can push the pressure sensor; a central control mechanism, the central control mechanism includes a central controller and a result feedback component, the adjustment mechanism and the moving arm are respectively connected to the central controller, the pressure sensor and the result feedback component are signal-connected.

[0007] In one embodiment of the present invention, the detection mechanism also includes a mounting plate, the mounting plate includes a main body and at least one assembly column, the main body is connected to the movable arm, the at least one assembly column is connected to the main body and is spaced apart from the main body in the thickness direction of the main body to form a moving space, the pressure sensor is connected to the main body, the floating core shaft is connected to the assembly column, and moves toward / away from the pressure sensor in the moving space.

[0008] In one embodiment of the present invention, the contact detection assembly also includes a mounting sleeve and an elastic reset member, both ends of the sleeve in the length direction are connected to the outside, one end thereof abuts against the main body, and the other end passes through the assembly column, the elastic reset member is arranged inside the sleeve, the floating core shaft is passed through and connected to the elastic reset member and passes through the mounting sleeve, and one end of the pressure sensor is passed through the mounting sleeve.

[0009] In one embodiment of the present invention, the result feedback component includes a signal receiving module, a signal processing module and a display module, the signal receiving module is connected to the pressure sensor to receive the detection signal of the pressure sensor, the input end of the signal processing module is connected to the signal receiving module, and the output end of the signal receiving module is connected to the display module.

[0010] In one embodiment of the present invention, the adjusting mechanism includes a base and a lifting assembly, and the lifting assembly is connected to the base to drive the base to move up and down.

[0011] In one embodiment of the present invention, the adjustment mechanism further includes a movable plate, the movable plate is slidably connected to the base along a first direction, and the bearing seat is slidably connected to the movable plate along a second direction.

[0012] In one embodiment of the present invention, the base also includes a bottom plate and a connecting plate, the bottom plate is supported on the mounting surface, the connecting plate is arranged on the bottom plate, and is provided with a slide rail extending along a first direction, and the movable plate is slidably connected to the slide rail on the connecting plate; the movable plate is provided with a slide rail extending along a second direction, and the movable plate is slidably connected to the slide rail on the movable plate.

[0013] In one embodiment of the present invention, a buffer pad is provided on the bearing seat, and the automobile seat to be inspected is supported on the buffer pad; and the movable arm is a multi-joint movable arm.

[0014] The present invention also provides a method for measuring the outer dimensions of a car seat, which uses the above-mentioned car seat outer dimension measuring device to detect the outer dimensions of the car seat, and includes: step S1, setting the car seat to be detected on the adjustment mechanism, and after moving it to the position to be detected, calibrating multiple detection sites on it; step S2, making the floating core shaft and the first detection site on the car seat to be detected squeeze each other until the pressure sensor collects the first detection signal and transmits it to the central control mechanism to obtain the initial coordinates; step S3, repeating step S2, making the floating core shaft and the remaining detection sites on the car seat to be detected squeeze each other in turn, and after the pressure sensor collects the remaining multiple detection signals in turn and transmits them to the central control mechanism, obtain multiple detection coordinates of the surface of the seat to be detected; step S4, calculating the distance between each detection site through the initial coordinates and multiple detection coordinates to obtain the outer dimensions of the car seat to be detected.

[0015] In one embodiment of the present invention, in step S1, a plurality of the detection sites are evenly distributed on the surface of the car seat to be detected; in steps S2 to S4, the detection signal received by the pressure sensor is received by a signal receiving module and transmitted to a signal processing module, and the signal processing module calculates the size parameters of the surface of the car seat to be detected through a plurality of the detection coordinates and the initial coordinates, and transmits them to a display module, which then displays the graphics and parameters.

[0016] The above technical solution of the present invention has the following advantages compared with the prior art: The automobile seat outer dimension measuring device and method described in the present invention fixes the automobile seat to be inspected at the inspection position through an adjustment mechanism, then collects multi-point coordinates through the inspection mechanism, and performs data analysis by the central control mechanism to obtain the precise outer dimensions of the final automobile seat. In this process, the inspection mechanism can directly contact the surface of the automobile seat to be inspected, thereby fundamentally avoiding the influence of structures such as packaging bags on the inspection results. Compared with conventional visual inspection equipment, this application has the advantages of a wide range of uses, accurate inspection results, high flexibility and controllability, and provides new ideas for the size inspection of automobile seats. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the automobile seat outer dimension measuring device and the seat to be tested in the preferred embodiment of the present invention; Figure 2 yes Figure 1 The enlarged structural diagram of point A in the vehicle seat dimension measuring device shown; Figure 3 It is a three-dimensional structural schematic diagram of the detection mechanism in the automobile seat external dimension measuring device shown in 1; Figure 4 yes Figure 1 The three-dimensional structural schematic diagram of the mounting plate and contact detection components in the automobile seat dimension measuring equipment is shown.

[0019] Explanation of the reference numerals in the specification: 100, adjustment mechanism; 110, base; 111, bottom plate; 112, connecting plate; 113, slide rail; 120, lifting assembly; 130, movable plate; 140, bearing seat; 141, buffer pad; 200, detection mechanism; 210, movable arm; 220, mounting plate; 221, main body; 222, assembly column; 230, contact detection assembly; 231, pressure sensor; 232, mounting sleeve; 233, floating spindle; 300, seat to be detected; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention. Embodiment 1

[0021] The present embodiment provides a vehicle seat outer dimension measuring device, which includes: an adjustment mechanism 100, wherein the adjustment mechanism 100 is provided with a bearing seat 140, and the vehicle seat to be detected is arranged on the bearing seat 140, and the bearing seat 140 can move horizontally and / or vertically; a detection mechanism 200, wherein the detection mechanism 200 includes a moving arm 210 and at least one contact detection component 230, wherein the at least one contact detection component 230 is connected to the moving arm 210 to move in accordance with the surface of the vehicle seat to be detected, and the contact detection component 230 includes a floating spindle 233 and a pressure sensor 231, wherein one end of the floating spindle 233 can contact the surface of the vehicle seat to be detected, and the other end can push the pressure sensor 231; a central control mechanism, wherein the central control mechanism includes a central controller and a result feedback component, and the adjustment mechanism 100 and the moving arm 210 are respectively connected to the central controller, and the pressure sensor 231 is signal-connected to the result feedback component.

[0022] The automobile seat dimension measuring device described in this embodiment fixes the automobile seat to be tested at the testing position through the adjustment mechanism 100, and then collects multi-point coordinates through the testing mechanism 200, and the central control mechanism performs data analysis to obtain the final precise dimensions of the automobile seat. In this process, the testing mechanism 200 can directly contact the surface of the automobile seat to be tested, thereby fundamentally avoiding the influence of structures such as packaging bags on the test results. Compared with conventional visual inspection equipment, this application has the advantages of a wide range of uses, accurate test results, high flexibility and controllability, and provides new ideas for the size detection of automobile seats.

[0023] It should be noted that, for ease of description, this embodiment defines the length direction of the base 110 in the automobile seat dimension measuring device as the first direction X, the width direction of the base 110 as the second direction Y, and the height direction of the device as the third direction Z, wherein the first direction X, the second direction Y and the third direction Z are arranged perpendicular to each other in pairs, and the first direction X and the second direction Y are located in the same plane.

[0024] See also Figure 1 and Figure 2As shown, in this embodiment, the adjustment mechanism 100 is used to drive the seats 300 to be detected thereon to adjust their three-dimensional positions before detection, so as to ensure that all the seats 300 to be detected are within the detection range of the detection mechanism 200, thereby avoiding measurement errors caused by incomplete data collection. Further, in this embodiment, the adjustment mechanism 100 includes a base 110 and a lifting assembly 120, and the lifting assembly 120 is connected to the base 110 to drive the base 110 to move up and down. Specifically, the lifting assembly 120 in this embodiment is preferably a lifting motor, which can drive the adjustment mechanism 100 and the seats 300 to be detected thereon to move up and down in the third direction Z. Furthermore, the adjustment mechanism 100 also includes a movable plate 130, which is slidably connected to the base 110 along a first direction X, and the supporting seat 140 is slidably connected to the movable plate 130 along a second direction Y. Specifically, in this embodiment, the base 110 also includes a bottom plate 111 and a connecting plate 112, the bottom plate 111 is supported on a mounting surface, the connecting plate 112 is arranged on the bottom plate 111, and is provided with a slide rail 113 extending along the first direction X, the movable plate 130 is slidably connected to the slide rail 113 on the connecting plate 112; the movable plate 130 is provided with a slide rail 113 extending along the second direction Y, and the movable plate 130 is slidably connected to the slide rail 113 on the movable plate 130, thereby realizing a three-dimensional adjustment process of the seat 300 to be inspected.

[0025] In this embodiment, in order to avoid collision and extrusion between the seat 300 to be tested and the support seat 140 during the movement and to improve the stability of the seat 300 to be tested, a buffer pad 141 is provided on the support seat 140 in this embodiment, and the car seat to be tested is supported on the buffer pad 141. In different embodiments, the lifting assembly 120 can be configured as other structures or elements with lifting functions, and the base 110, the moving plate 130 and the support seat 140 can also achieve relative movement through other structures, and the present invention does not make specific restrictions on this.

[0026] See also Figure 3As shown, the detection mechanism 200 in this embodiment is used to realize the feedback of the external dimensions of the seat 300 to be detected by collecting multi-point data on the surface of the seat 300 to be detected, wherein the moving arm 210 is used to drive the contact detection component 230 to move along the surface of the seat 300 to be detected, and the contact detection component 230 is used to relatively squeeze the surface of the seat 300 to be detected to realize the contact detection process. Based on this, the detection mechanism 200 in this embodiment can minimize the influence of plastic packaging film and the like on the external dimensions of the seat. Specifically, the moving arm 210 in this embodiment is a multi-joint moving arm 210, and two contact detection components 230 are connected to its working end, and the two contact detection components 230 are arranged at intervals, thereby realizing the effect of simultaneously collecting data at two locations. In different implementations, it can also be set according to actual use requirements. Other numbers of contact detection components 230 can be set to achieve higher detection efficiency or detection accuracy, and the present invention does not make specific restrictions on this.

[0027] See also Figure 3 and Figure 4 As shown, in this embodiment, the detection mechanism 200 further includes a mounting plate 220, the mounting plate 220 includes a body 221 and at least one assembly column 222, the body 221 is connected to the moving arm 210, the at least one assembly column 222 is connected to the body 221, and is spaced apart from the body 221 in the thickness direction of the body 221 to form a moving space, the pressure sensor 231 is connected to the body 221, and the floating mandrel 233 is connected to the assembly column 222, and moves toward / away from the pressure sensor 231 in the moving space. Specifically, the body 221 in this embodiment is a flat plate, one side of which is detachably connected to the free end of the moving arm 210, and the other side is fixedly connected to the two assembly columns 222, which is used to provide a mounting and connecting platform for the two contact detection components 230, so in different embodiments, its specific structure and shape can be adaptively adjusted according to actual use requirements.

[0028] In this embodiment, the contact detection assembly 230 further includes a mounting sleeve 232 and an elastic reset member (not shown in the figure). Both ends of the sleeve in the length direction are connected to the outside, one end of the sleeve abuts against the body 221, and the other end passes through the assembly column 222. The elastic reset member is fixedly arranged inside the sleeve, the floating mandrel 233 is connected to the elastic reset member and passes through the mounting sleeve 232, and one end of the pressure sensor 231 is passed through the mounting sleeve 232. Specifically, the mounting sleeve 232 is used to improve the connection stability of the floating mandrel 233 on the one hand, and to guide the moving direction of the floating mandrel 233 on the other hand, thereby ensuring that the floating mandrel 233 can be directed to move toward the pressure sensor 231 after being squeezed by the outside. The elastic reset member is preferably a spring, which is used to provide a driving effect for the reset of the floating mandrel 233. Further, in other embodiments, the elastic reset member can also be configured as elastic rubber, spring sheet or other elements with elastic reset effect, and the present invention does not make specific restrictions on this.

[0029] In this embodiment, the result feedback component includes a signal receiving module, a signal processing module and a display module. The signal receiving module is connected to the pressure sensor 231 to receive the detection signal of the pressure sensor 231. The input end of the signal processing module is connected to the signal receiving module, and the output end of the signal receiving module is connected to the display module. Specifically, the display module can display the signal input by the signal processing module in the form of graphics and parameters, which is preferably a display. The signal receiving module and the signal processing module are both controlled by a PLC programmable logic controller. Therefore, in actual use, the operator can control the above structure in real time, thereby improving the flexibility of the use of the device, and can also preset parameters, thereby improving the automation of the device. Embodiment 2

[0030] This embodiment provides a method for measuring the external dimensions of a car seat, which uses the external dimensions measuring device for the car seat described in the first embodiment to detect the external dimensions of the car seat, and includes: Step S1, setting the car seat to be tested on the adjustment mechanism 100, and after moving it to the position to be tested, marking multiple testing sites on it; further, in step S1, the multiple testing sites are evenly distributed on the surface of the car seat to be tested.

[0031] Step S2, the floating mandrel 233 and the first detection position on the vehicle seat to be detected are pressed against each other until the pressure sensor 231 collects the first detection signal and transmits it to the central control mechanism to obtain the initial coordinates; Step S3, repeating step S2, so that the floating mandrel 233 is pressed against the remaining detection sites on the to-be-detected automobile seat in turn, and the remaining multiple detection signals are collected in turn by the pressure sensor 231 and transmitted to the central control mechanism, thereby obtaining multiple detection coordinates of the surface of the to-be-detected seat 300; Step S4: Calculate the distance between each detection point by using the initial coordinates and multiple detection coordinates to obtain the outer dimensions of the automobile seat to be detected.

[0032] Specifically, in step S2 to step S4, the detection signal received by the pressure sensor 231 is received by the signal receiving module and transmitted to the signal processing module. The signal processing module calculates the size parameters of the surface of the car seat to be detected through multiple detection coordinates and the initial coordinates, and transmits them to the display module, which then displays the graphics and parameters.

[0033] In summary, the automobile seat outer dimension measuring device and method described in the present invention fixes the automobile seat to be inspected at the inspection position through the adjustment mechanism 100, and then performs multi-point coordinate acquisition through the inspection mechanism 200, and the central control mechanism performs data analysis to obtain the final precise outer dimensions of the automobile seat. In this process, the inspection mechanism 200 can directly contact the surface of the automobile seat to be inspected, thereby fundamentally avoiding the influence of structures such as packaging bags on the inspection results. Compared with conventional visual inspection equipment, this application has the advantages of a wide range of uses, accurate inspection results, high flexibility and controllability, and provides new ideas for the size detection of automobile seats.

[0034] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A vehicle seat dimension measuring device, characterized in that: include: An adjustment mechanism, wherein the adjustment mechanism is provided with a bearing seat, the vehicle seat to be tested is arranged on the bearing seat, and the bearing seat can move horizontally and / or vertically; A detection mechanism, the detection mechanism comprising a moving arm and at least one contact detection component, the at least one contact detection component is connected to the moving arm to move in contact with the surface of the car seat to be detected, the contact detection component comprises a floating mandrel and a pressure sensor, one end of the floating mandrel can contact the surface of the car seat to be detected, and the other end can push the pressure sensor; The central control mechanism includes a central controller and a result feedback component. The adjustment mechanism and the movable arm are respectively connected to the central controller, and the pressure sensor is signal-connected to the result feedback component.

2. The vehicle seat dimension measuring device according to claim 1, characterized in that: The detection mechanism also includes a mounting plate, which includes a main body and at least one assembly column. The main body is connected to the movable arm, and the at least one assembly column is connected to the main body and is spaced apart from the main body in the thickness direction of the main body to form a moving space. The pressure sensor is connected to the main body, and the floating core shaft is connected to the assembly column and moves toward / away from the pressure sensor in the moving space.

3. The vehicle seat outer dimension measuring device according to claim 2, characterized in that: The contact detection assembly also includes a mounting sleeve and an elastic reset member. Both ends of the sleeve in the length direction are connected to the outside world, one end abuts against the main body, and the other end passes through the assembly column. The elastic reset member is arranged inside the sleeve, the floating core shaft is connected to the elastic reset member and passes through the mounting sleeve, and one end of the pressure sensor is passed through the mounting sleeve.

4. The vehicle seat outer dimension measuring device according to claim 1, characterized in that: The result feedback component includes a signal receiving module, a signal processing module and a display module. The signal receiving module is connected to the pressure sensor to receive the detection signal of the pressure sensor. The input end of the signal processing module is connected to the signal receiving module, and the output end of the signal receiving module is connected to the display module.

5. The vehicle seat outer dimension measuring device according to claim 1, characterized in that: The adjusting mechanism comprises a base and a lifting assembly, wherein the lifting assembly is connected to the base to drive the base to move up and down.

6. The vehicle seat outer dimension measuring device according to claim 5, characterized in that: The adjusting mechanism further comprises a moving plate, wherein the moving plate is slidably connected to the base along a first direction, and the bearing seat is slidably connected to the moving plate along a second direction.

7. The vehicle seat outer dimension measuring device according to claim 6, characterized in that: The base also includes a bottom plate and a connecting plate, the bottom plate is supported on the mounting surface, the connecting plate is arranged on the bottom plate, and is provided with a slide rail extending along a first direction, and the movable plate is slidably connected to the slide rail on the connecting plate; the movable plate is provided with a slide rail extending along a second direction, and the movable plate is slidably connected to the slide rail on the movable plate.

8. The vehicle seat outer dimension measuring device according to claim 1, characterized in that: The bearing seat is provided with a buffer pad, and the automobile seat to be detected is supported on the buffer pad; the moving arm is a multi-joint moving arm.

9. A method for measuring the outer dimensions of a car seat, characterized in that: The vehicle seat outer dimension measuring device according to any one of claims 1 to 8 is used to detect the outer dimension of the vehicle seat, which comprises: Step S1, placing the automobile seat to be tested on the adjustment mechanism, moving it to the position to be tested, and marking a plurality of testing sites on it; Step S2, causing the floating mandrel to press against a first detection position on the vehicle seat to be detected until the pressure sensor collects a first detection signal and transmits it to the central control mechanism to obtain an initial coordinate; Step S3, repeating step S2, so that the floating mandrel is mutually squeezed with the remaining detection sites on the to-be-detected automobile seat in turn, and after the remaining multiple detection signals are collected in turn by the pressure sensor and transmitted to the central control mechanism, multiple detection coordinates of the surface of the seat to be detected are obtained; Step S4: Calculate the distance between each detection point by using the initial coordinates and multiple detection coordinates to obtain the outer dimensions of the automobile seat to be detected.

10. The method for measuring the outer dimensions of a vehicle seat according to claim 9, characterized in that: In step S1, multiple detection sites are evenly distributed on the surface of the car seat to be detected; in steps S2 to S4, the detection signal received by the pressure sensor is received by the signal receiving module and transmitted to the signal processing module, and the signal processing module calculates the size parameters of the surface of the car seat to be detected through multiple detection coordinates and the initial coordinates, and transmits them to the display module, which then displays the graphics and parameters.

Images