Automobile front and rear seat detecting device

Abstract

The present application belongs to the technical field of automobile parts detection, and particularly relates to a front and rear seat detection fixture for an automobile, which comprises detachably connected front seat detection fixture and rear seat detection fixture; the front seat detection fixture comprises a first bottom plate, a first installation assembly for installing front seats, a first platform for placing a three-coordinate detector, and a center console handrail simulation piece, the center console handrail simulation piece comprises a detachable fixed part, a moving part and a sliding part; the rear seat detection fixture comprises a second bottom plate, a second installation assembly for installing rear seats, a second platform for placing a three-coordinate detector, a rear seat detection assembly for detecting the cooperation between the rear seats and peripheral parts, and a second simulation assembly; the second simulation assembly comprises a backrest position simulation piece, a C-pillar simulation piece, a door sill guard simulation piece and a front guard simulation piece; so as to solve the problems of small detection range, low detection efficiency and deviation of detection results of the existing detection fixture.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts testing technology, specifically relating to a tool for inspecting front and rear seats of automobiles. Background Technology

[0002] A fixture is a specialized measuring tool designed to control various dimensions of a product. In automotive seat production, not only are the individual dimensions of the seat important to control, but the fit between the seat and surrounding components within the vehicle body is also a crucial consideration. Therefore, the factory inspection of finished automotive seats primarily involves two aspects: measuring the seat's installation dimensions, assembly dimensions, and various design parameters, as well as evaluating the appearance and comfort of the seat assembly. The main function of the fixtures used by automotive seat manufacturers is to simulate the surface and fixing points of the seat's mating parts, fixing the seat onto the fixture to simulate the vehicle assembly state, thereby enabling dimensional and appearance evaluation.

[0003] Traditional seat fixtures are made separately for each row of seats in a car. During factory testing, the front and rear seats are tested separately, which makes it difficult to simulate the quality evaluation environment of a real vehicle. This may lead to difficulties in actual vehicle assembly, and interference may occur between the front seat backrest and the rear seat when they move. Furthermore, it is difficult to complete the data testing and appearance comfort evaluation of the seats on the same fixture. The seats need to be installed and removed multiple times, which is time-consuming, labor-intensive, and has low testing efficiency. To address the aforementioned issues, Chinese utility model patent CN 219064454 U discloses a fixture for integrating front and rear seats. The fixture's base plate has a simulated center console armrest block between the front seats. Multiple fixed supports are located on the fixture's base plate at corresponding positions on the front and rear seat guide rails. A simulated door sill block is located on the side of the front seats, and simulated pillar blocks are located on the two outer rear sides of the rear seats. A simulated cover block is located between the pillar blocks. The driver and passenger seats are installed in simulated positions, and the gaps between the driver and passenger seats and the inner side of the simulated center console armrest block, and the gaps between the driver and passenger seats and the outer side of the simulated door sill block are observed. The rear seats are also installed in simulated positions, and the gaps between the rear seats and the outer side of the simulated pillar blocks, and the gaps between the rear seats and the rear of the simulated cover block are observed.

[0004] This fixture improves the reliability of actual car seat installation by simulating the spatial scenario of a real car seat, but the following problems still exist: The fixture integrates the front and rear seats on the same base plate. When the design parameters such as the H point of the front and rear seats are tested separately, the other rows of seats and various simulation blocks on the fixture may interfere with the testing instruments, resulting in deviations in the test results of the seat design parameters. Summary of the Invention

[0005] The purpose of this invention is to provide a vehicle front and rear seat inspection fixture to solve the problems of small inspection range, low inspection efficiency, and deviation in inspection results of existing fixtures.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A vehicle front and rear seat inspection fixture, comprising a detachably connected front seat inspection fixture and a rear seat inspection fixture; The front seat fixture includes a first base plate, on which a first mounting assembly, a first simulation assembly, and a first platform are provided. The first mounting assembly is used to install the front seat. The first simulation assembly includes a center console armrest simulation component, which includes a fixed part, a moving part, and a sliding part. The fixed part is fixed to the first base plate, the moving part is detachably mounted on the top of the fixed part, and the sliding part is slidably mounted on the first base plate. The first platform is used to place a coordinate measuring machine, and the first platform is located between the fixed part and the moving part of the center console armrest simulation component. The rear seat inspection fixture includes a second base plate, on which are mounted a second mounting component, a second simulation component, a rear seat inspection component, and a second platform. The second mounting component is used to install the rear seat. The second simulation component includes a backrest position simulator, a C-pillar simulator, a door sill protector simulator, and a front protector simulator. The rear seat inspection component is used to inspect the fit between the rear seat and surrounding components. The second platform is detachably mounted on the second base plate and is used to place a coordinate measuring machine.

[0007] The technical principle of this invention is as follows: When testing the design parameters of the front seats, if the front seats can be installed on the front seat fixture using the first mounting component, it indicates that the installation dimensions of the seats meet the requirements. Then, the sliding part of the center console armrest simulation component is slid backward, the moving part of the center console armrest simulation component is removed, a coordinate measuring machine is placed on the first platform, and the design parameters of the seats are tested using the coordinate measuring machine, and the parameter test data is recorded. Finally, the coordinate measuring machine is removed from the first platform, the moving part is installed on the fixed part, and the sliding part is slid forward to return to its initial position. The testers evaluate the appearance and comfort of the front seat assembly through observation, riding, and other methods, and record the corresponding results.

[0008] When testing the design parameters of the rear seats, if the rear seats can be installed on the rear seat fixture using the second mounting component, it indicates that the installation dimensions of the seats meet the requirements. Next, the fit between the rear seats and surrounding components is tested using the rear seat testing component. Then, the mounting bracket's insert plate is inserted into the slot of the second base plate, and a coordinate measuring machine is placed on the second platform. The design parameters of the seats are then tested using the coordinate measuring machine, and the parameter test data is recorded. Finally, the testing personnel evaluate the appearance and comfort of the rear seat assembly through observation and riding, and record the corresponding results.

[0009] After the front and rear seats are inspected individually, the front and rear seat inspection tools are combined into a whole to check whether there is any interference between the front and rear seats.

[0010] Compared with the prior art, the present invention has the following technical effects: 1. This invention, by setting up detachably connected front and rear seat fixtures, allows each to be used independently for separate testing of the front and rear seats. This avoids interference from components such as the front car seat and center console armrest simulation parts with the coordinate measuring machine when testing the rear seats. The center console armrest simulation part of the front seat fixture is designed as a detachable fixed plate, moving part, and sliding part, which avoids interference from the center console armrest simulation part with the coordinate measuring machine when testing the design parameters of the front seats. This effectively avoids errors in the measurement results of the coordinate measuring machine, improves the accuracy of the test data, and by combining the front and rear seat fixtures into a whole, it can also detect whether there is interference between the front and rear seats, expanding the testing range of the fixtures, avoiding assembly problems after the car seats leave the factory, and improving the factory quality standards of the car seats.

[0011] 2. By setting up a first simulation component and a second simulation component, the present invention enables the inspection tool to simulate the actual installation scenario of the seats inside the vehicle body to the greatest extent, making the evaluation results of the appearance and comfort of the car seat assembly by the inspectors more realistic and objective.

[0012] 3. By setting up a first platform and a second platform, this invention can place a coordinate measuring machine (CMM) in a fixed position and use the CMM to measure and collect various data of the car seat. Compared with the existing inspection methods that require manual data measurement and collection, the inspection results of this invention are more accurate and less prone to measurement errors. Furthermore, the inspection tool provided by this invention can complete the data inspection and appearance comfort evaluation of the seat, which can not only reduce the number of seat disassembly and installation, saving time and labor costs for seat installation and improving inspection efficiency, but also reduce the cost of manufacturing the inspection tool and improve production efficiency.

[0013] Furthermore, the first mounting assembly includes several mounting modules, each including a support base, a cylinder, a bracket, a pressure head, and an operating table; the cylinder is fixed to the bottom of the first base plate, the bracket is fixed to the first base plate, and the bracket is located between the cylinder and the support base; the pressure head is shaped like a "2", the output end of the cylinder passes through the first base plate and is hinged to one end of the pressure head, and the bent part of the pressure head is hinged to the bracket; the cylinder of each module is electrically connected to the operating table, which is used to control the output end of the cylinder to move up or down, so that the free end of the pressure head rotates downward to abut against the support base or rotates upward to move away from the support base.

[0014] Furthermore, the rear seat detection assembly includes a first detection element, a second detection element, and a third detection element. These three elements work together to detect the fit between the rear seat and the simulated front bumper panel. The first detection element can also be used alone to detect the fit between the rear seat and the simulated door sill panel. Both the first and second detection elements include a fixed base, a guide post, and a detection block. The fixed base is mounted on a second base plate and has a through hole. The guide post slides within the through hole. The detection block is located at the rear end of the guide post and is used to detect the engagement of the front bumper panel of the rear seat. The guide post can be moved forward to a clearance position away from the seat installation position, and backward to a detection position close to the seat installation position. The third detection component includes a base and a support rod. The base is mounted on the second base plate, and the support rod is rotatably mounted on the base. The support rod can be rotated forward to a clearance position away from the seat installation position, and backward to a detection position close to the seat installation position. The first, second, and third detection components are all equipped with detection posts, which are set on the detection block or support rod. The detection posts are used to detect the position of the front panel mounting holes of the rear seat.

[0015] Furthermore, the first detection component has three measuring surfaces formed on its detection block: one measuring surface is used to detect the position of the front guard plate's hanging wire, and two measuring surfaces are used to detect the position of the sill guard plate's hanging wire; the second detection component has one measuring surface formed on its detection block for detecting the position of the front guard plate's hanging wire.

[0016] Furthermore, the first and second detection components also include a handle and a locking pin. The handle is located at the front end of the guide post, and the guide post can be moved forward or backward by the handle. The guide post is provided with two locking holes, and the locking pin cooperates with the locking holes to fix the guide post in the clearance position or the detection position. The support rod of the third detection component is provided with a positioning pin, and the support rod can be pulled forward or backward by the positioning pin. The base is provided with a positioning hole, and the positioning pin cooperates with the positioning hole to fix the support rod in the detection position.

[0017] Furthermore, the first simulation component also includes a driver's seat pedal simulator and a passenger seat pedal simulator, with the driver's seat pedal simulator having an inclination angle of 50-60° and the passenger seat pedal simulator having an inclination angle of 10-20°.

[0018] Furthermore, the rear seat fixture also includes a mounting bracket, and the second simulation component also includes a rear pedal simulation component. Both the rear pedal simulation component and the second platform are mounted on the mounting bracket. The second base plate is provided with several slots, and the mounting bracket is provided with several insert plates that can be inserted into the slots.

[0019] Furthermore, the bottom of the first base plate and the second base plate are respectively provided with a first support frame and a second support frame. The bottom of the first support frame, the second support frame and the mounting frame are respectively provided with a first universal brake wheel, a second universal brake wheel and a third universal brake wheel. The first universal brake wheel, the second universal brake wheel and the third universal brake wheel are all provided with Z-axis adjusting screws.

[0020] Furthermore, the first base plate and the second base plate are respectively provided with a first connecting slot, a second connecting slot, and a connector. The first connecting slot and the second connecting slot can cooperate with each other, and the connector is used to fix the first connecting slot and the second connecting slot into a whole.

[0021] Furthermore, the first base plate and the second base plate are respectively provided with a plurality of first lifting rings and a plurality of second lifting rings. Attached Figure Description

[0022] Figure 1 A structural diagram showing the combined use of the front seat fixture and the rear seat fixture; Figure 2 This is a three-dimensional structural diagram of the front seat inspection fixture; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A; Figure 4 A three-dimensional structural diagram of the rear seat inspection fixture; Figure 5 This is a partial top view of the rear seat fixture. Figure 6 This is an assembly drawing of the rear seat fixture and the rear seat frame; Figure 7 Assembly drawing of the rear seat frame and the second mounting component; Figure 8 This is a three-dimensional structural diagram of the first, second, and third testing components. Detailed Implementation

[0023] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: Front seat inspection tool 100; First base plate 110, guide rail 111, first support frame 112, first universal brake wheel 113, first connecting clip 114, connector 115, first lifting ring 116; First mounting component 120, support base 121, connecting column 1211, cylinder 122, support 123, pressure head 124, operating table 126; The first simulation component 130 includes a fixed part 131, a moving part 132, a sliding part 133, a driver's seat pedal simulation component 134, and a passenger seat pedal simulation component 135. The first platform is 140, and the support rod is 141. 200 rear seat inspection tools; Second base plate 210, slot 211, second support frame 212, second universal brake wheel 213, second connecting clip 214, second hanging ring 215, fixed bracket 216, door sill guard bottom 217, front guard base 218. Second mounting component 220, front support 221, rear support 222; Second simulation component 230, backrest position simulation component 231, C-pillar simulation component 232, door sill protection plate simulation component 233, front protection plate simulation component 234, rear pedal simulation component 235. Mounting bracket 240, second platform 241, insert plate 242, third swivel brake wheel 243; The rear row detection assembly 250 includes a first detection component 251, a second detection component 252, a third detection component 253, a fixed base 254, a guide post 2541, a handle 2542, a locking pin 2543, a detection block 255, a measuring surface 2551, a base 256, a baffle 2561, a support rod 257, a positioning pin 258, and a detection post 259. Front seats 300, driver's seat 310, front passenger seat 320; Rear seat 400, front guard plate hanging wire 410, door sill guard plate hanging wire 420, front guard plate mounting hole 430.

[0024] Example like Figure 1 As shown, a vehicle front and rear seat inspection fixture includes a front seat inspection fixture 100 and a rear seat inspection fixture 200 that are detachably connected.

[0025] like Figure 1 As shown, the front seat fixture 100 includes a first base plate 110, on which a first mounting component 120, a first simulation component 130 and a first platform 140 are provided.

[0026] The first mounting component 120 is used to mount the front seat 300; such as Figure 2 , 3As shown, the first mounting assembly 120 includes several identical mounting modules. Each mounting module includes a support base 121, a cylinder 122, a support 123, a pressure head 124, and an operating platform 126. The support base 121 is bolted to the first base plate 110, and a connecting column 1211 is fixed to the top of the support base 121. The connecting column 1211 can pass through the mounting holes on the mounting feet of the front seat 300. The cylinder 122 is bolted to the bottom of the first base plate 110, and the support 123 is bolted to the first base plate 110. The support 123 is located between the cylinder 122 and the support base 121. The pressure head 124 is shaped like a "2", and the output end of the cylinder 122 passes through the first base plate 110 and connects to the pressure head 124. One end of the pressure head 124 is hinged to the support 123. The operating table 126 is fixed to the first base plate 110 by bolts. The cylinder 122 of each module is electrically connected to the operating table 126. The operating table 126 is used to control the output end of the cylinder 122 to move up or down, so that the free end of the pressure head 124 rotates down to abut against the support 121 or rotates up to move away from the support 121. The first mounting component 120 in this embodiment includes eight mounting modules. The eight mounting modules are symmetrically arranged on the left and right sides of the center line of the first base plate 110, and are used to install the driver's seat 310 and the passenger seat 320, respectively. Every two mounting modules correspond to the position of a slide rail at the bottom of the front seat 300.

[0027] When installing the front seat 300, first install the driver's seat 310 and the passenger seat 320 on the mounting modules on the left and right sides of the first base plate 110, respectively, so that the connecting column 1211 passes through the mounting holes on the mounting feet of the front seat 300. Then, control the output shaft of the cylinder 122 to move upward through the control panel 126. The output shaft drives the free end of the pressure head 124 to rotate downward, pressing the mounting feet of the front seat 300 onto the support base 121, thus fixing the front seat 300 onto the first base plate 110 for subsequent testing. After the front seat 300 is tested, control the output shaft of the cylinder 122 to move downward through the control panel 126. The output shaft of the cylinder 122 drives the free end of the pressure head 124 to rotate upward and move away from the mounting feet of the front seat 300. Then, remove the front seat 300 from the support base 121.

[0028] If the front seat 300 can be installed on the first mounting component 120, then the installation dimensions of the front seat 300 meet the factory requirements. Setting the first mounting component 120 to be driven by the cylinder 122 makes the installation and removal of the front seat 300 simpler and faster, shortens the installation time, saves manpower, and improves the inspection efficiency of the front seat 300.

[0029] like Figure 2As shown, the first simulation component 130 includes a center console armrest simulation component disposed on the center line of the first base plate 110. A guide rail 111 is fixed to the center line of the first base plate 110 by bolts. The center console armrest simulation component includes a fixed part 131, a moving part 132, and a sliding part 133. The fixed part 131 is fixed to the first base plate 110 by bolts and is located in front of the guide rail 111. The moving part 132 is detachably installed on the top of the fixed part 131, and the sliding part 133 is slidably installed on the guide rail 111.

[0030] If the front seat 300 does not interfere with the center console armrest simulation component after installation, then the assembly dimensions of the seat meet the factory requirements.

[0031] like Figure 2 As shown, the first simulation component 130 also includes a driver's seat pedal simulation component 134 and a passenger seat pedal simulation component 135, which are fixed to the front side of the first base plate 110 by bolts. The tilt angle of the driver's seat pedal simulation component 134 is set to 50~60°, and the tilt angle of the passenger seat pedal simulation component 135 is set to 10~20°. In this embodiment, the tilt angle of the driver's seat pedal simulation component 134 is set to 55°, and the tilt angle of the passenger seat pedal simulation component 135 is set to 15°.

[0032] By setting up driver's seat pedal simulation component 134 and passenger seat pedal simulation component 135, the legroom of the driver and passenger can be simulated, making the evaluation results of the appearance and comfort of the front seat 300 assembly by the testers more realistic and objective.

[0033] like Figure 2 As shown, the first platform 140 is welded to the support rod 141, and the support rod 141 is fixed to the center line of the first base plate 110 by bolts. The first platform 140 is used to place the coordinate measuring machine. The first platform 140 is located between the fixed part 131 and the moving part 132 of the center console armrest simulation component.

[0034] When using a coordinate measuring machine (CMM) to test the data of the front seat 300, first slide the sliding part 133 of the center console armrest simulation component backward, disassemble the moving part 132 of the center console armrest simulation component, and place the CMM on the platform for testing. When evaluating the appearance and comfort of the front seat 300, remove the CMM from the platform, then install the moving part 132 on the fixed part 131, and slide the sliding part 133 forward to return to its initial position. The testers evaluate the seat assembly by observation, sitting, etc., and record the corresponding results. Setting the center console armrest simulation component as a detachable fixed part 131, moving part 132, and sliding part 133 can effectively avoid interference from the center console armrest simulation component to the CMM when testing the design parameters of the front seat 300, prevent errors in the test data, and improve the accuracy of the test data.

[0035] like Figure 1 , 4 As shown, the rear seat inspection fixture 200 includes a second base plate 210, on which a second mounting component 220, a second simulation component 230, a rear seat inspection component 250, a mounting bracket 240, and a second platform 241 are provided.

[0036] like Figure 5-7 As shown, the second mounting assembly 220 is used to mount the rear seat 400. The second mounting assembly 220 includes a plurality of front supports 221 and a plurality of rear supports 222. The front supports 221 are used to connect with the front mounting feet of the rear seat 400, and the rear supports 222 are used to connect with the rear mounting feet of the rear seat 400. In this embodiment, there are four front supports 221 and seven rear supports 222. During installation, the front mounting feet and rear mounting feet of the rear seat 400 are fixed to the front supports 221 and the rear supports 222 respectively with bolts.

[0037] like Figure 4-6 As shown, the second simulation component 230 includes a backrest position simulation component 231, a C-pillar simulation component 232, a sill guard simulation component 233, and a front guard simulation component 234; a fixed bracket 216, a sill guard bottom 217 seat, and a front guard base 218 are installed on the second base plate 210. The backrest position simulation component 231 and the C-pillar simulation component 232 are both installed on the fixed bracket 216, and the sill guard simulation component 233 and the front guard simulation component 234 are detachably installed on the sill guard bottom 217 seat and the front guard base 218 respectively by pins.

[0038] By setting backrest position simulator 231, C-pillar simulator 232, sill protector simulator 233, and front skid plate simulator 234 on the rear seat fixture 200, the fixture can completely reproduce the actual assembly scenario of the rear seat 400, making the inspection results of the rear seat 400 more accurate. To avoid the second simulation component 230 interfering with the installation of the rear seat 400, the front skid plate simulator 234 is installed on the front skid plate base 218 after the rear seat 400 is installed in place. If the rear seat 400 can be installed on the second installation component 220, and there is no interference between the front skid plate simulator 234 and the rear seat 400, then the installation dimensions of the rear seat 400 meet the requirements.

[0039] like Figure 4-6As shown, the rear seat detection component 250 is used to detect the fit between the rear seat 400 and surrounding components. The rear seat detection component 250 includes a first detection component 251, a second detection component 252, and a third detection component 253. The first detection component 251, the second detection component 252, and the third detection component 253 work together to detect the fit between the rear seat 400 and the front guard plate simulation component 234. The first detection component 251 can also be used alone to detect the fit between the rear seat 400 and the sill guard plate simulation component 233. There are two of each of the first detection component 251, the second detection component 252, and the third detection component 253. The two first detection components 251, the two second detection components 252, and the two third detection components 253 are symmetrically arranged on the second floor plate 210.

[0040] like Figure 8 As shown in B and C, both the first detection component 251 and the second detection component 252 include a fixed base 254, a guide post 2541, a detection block 255, a handle 2542, and a locking pin 2543. The fixed base 254 is welded to the second base plate 210 and has a through hole. The guide post 2541 slides in the through hole. The detection block 255 is welded to the rear end of the guide post 2541 and is used to detect the position of the steel wire 410 that is attached to the front guard plate of the rear seat. The handle 2542 is threaded onto the front end of the guide post 2541. The handle 2542 can be used to push the guide post 2541 forward to a clearance position away from the installation position of the rear seat 400, or backward to a detection position close to the installation position of the rear seat 400. The guide post 2541 has two locking holes. The locking pin 2543 cooperates with the locking holes to fix the guide post 2541 in the clearance position or the detection position.

[0041] like Figure 8 As shown in D, the third detection component 253 includes a base 256 and a support rod 257. The base 256 is mounted on the second base plate 210 and has a mounting groove. The support rod 257 is rotatably mounted in the mounting groove of the base 256 via a pin. A positioning pin 258 is threaded onto the support rod 257. The positioning pin 258 can be used to pull the support rod 257 forward to a clearance position away from the seat installation position, or backward to a detection position close to the seat installation position. A positioning hole is provided on the base 256. The positioning pin 258 and the positioning hole cooperate to fix the support rod 257 in the detection position. A baffle 2561 is threaded onto the mounting groove of the base 256. A wedge surface is formed on the baffle 2561. After the support rod 257 is rotated forward to the clearance position, it can abut against the wedge surface of the baffle 2561.

[0042] like Figure 7 and Figure 8As shown in B and C, the detection block 255 of the first detection component 251 has three measuring surfaces 2551 formed on it. One measuring surface 2551 is used to detect the position of the front guard plate hanging wire 410, and two measuring surfaces 2551 are used to detect the position of the sill guard plate hanging wire 420. The detection block 255 of the second detection component 252 has one measuring surface 2551 formed on it for detecting the position of the front guard plate hanging wire 410.

[0043] like Figure 7 , 8 As shown, the first detection component 251, the second detection component 252, and the third detection component 253 are all provided with detection posts 259. The detection posts 259 are used to detect the position of the front guard plate mounting hole 430 of the rear seat 400. The guide posts 2541 of the first detection component 251 and the second detection component 252 are fixed on the detection block 255, and the detection posts 259 of the third detection component 253 are fixed on the support rod 257.

[0044] To avoid interference from the installation of the rear seat 400 by the second detection component, the first detection component 251, the second detection component 252, and the third detection component 253 are all in the clearance position before the rear seat 400 is installed. After the rear seat 400 and the front guard plate simulation component 234 are installed in place, the first detection component 251, the second detection component 252, and the third detection component 253 are all adjusted to the detection position. If the detection column 259 can cooperate with the corresponding front guard plate mounting hole 430 on the rear seat 400, and the measuring surface 2551 of the detection block 255 can abut against the front guard plate hook wire 410 or the sill guard plate hook wire 420 of the rear seat 400, then the rear seat 400 can be installed with the sill guard plate simulation component 233 and the front guard plate simulation component 234, and the assembly dimensions meet the factory requirements.

[0045] like Figure 4-6 As shown, the second platform 241 is bolted to the mounting bracket 240 and is used to place the coordinate measuring machine. Several insert plates 242 are welded to the rear end of the mounting bracket 240, and several slots 211 are opened at the front end of the second base plate 210. The insert plates 242 can be inserted into the slots 211, connecting the mounting bracket 240 and the second base plate 210 into a whole. In this embodiment, there are four insert plates 242 and four slots 211. The second simulation assembly 230 also includes three rear pedal simulation components 235 welded to the mounting bracket 240. When the mounting bracket 240 and the base plate are connected as a whole, two rear pedal simulation components 235 are located in front of the two side seats of the rear seat 400, and one rear pedal simulation component 235 rests on the second base plate 210 and is located in front of the middle seat of the rear seat 400.

[0046] After the installation and assembly dimensions of the rear seat 400 are checked, the insert plate 242 of the mounting bracket 240 is inserted into the slot 211 of the second base plate 210, and the coordinate measuring machine is placed on the second platform 241 to measure the remaining design parameters of the rear vehicle.

[0047] By setting up a second platform 241, a coordinate measuring machine (CMM) can be used to inspect the rear seat 400. The CMM's position remains fixed throughout the inspection, resulting in more accurate results. Compared to existing methods that rely on manual measurement, this also improves inspection efficiency. The addition of a rear pedal simulator 235 further replicates the actual assembly process of the rear seat 400, allowing inspectors to provide a more realistic and objective evaluation of its appearance and comfort.

[0048] like Figure 2 , 4 As shown, a first support frame 112 and a second support frame 212 are welded to the bottom of the first base plate 110 and the second base plate 210, respectively. A first universal brake wheel 113, a second universal brake wheel 213 and a third universal brake wheel 243 are respectively installed on the bottom of the first support frame 112, the second support frame 212 and the mounting frame 240. The first universal brake wheel 113, the second universal brake wheel 213 and the third universal brake wheel 243 are all provided with Z-axis adjusting screws.

[0049] By setting up omnidirectional brake wheels, the positions of the front seat fixture 100, the rear seat fixture 200, and the mounting bracket 240 can be moved within a small range. The overall height of the front seat fixture 100, the rear seat fixture 200, and the mounting bracket 240 can be adjusted by rotating the Z-axis adjusting screw on the omnidirectional brake wheels.

[0050] like Figure 2 , 4 As shown, a first connecting locking member 114 and a second connecting locking member 214 are welded to the rear side of the first base plate 110 and the front side of the second base plate 210, respectively. The first connecting locking member 114 and the second connecting locking member 214 can cooperate with each other. The first connecting locking member 114 and the second connecting locking member 214 are respectively provided with a first positioning hole and a second positioning hole. A connector 115 is provided in the first positioning hole. In this embodiment, the connector 115 is a positioning pin. The positioning pin passes through the first positioning hole and the second positioning hole in sequence to fix the first connecting locking member 114 and the second connecting locking member 214 together.

[0051] After inspecting the front seat 300 and rear seat 400 separately using the front seat inspection fixture 100 and the rear seat inspection fixture 200 respectively, as follows: Figure 1As shown, the front seat fixture 100 and the rear seat fixture 200 are connected together using the first connecting locking member 114 and the second connecting locking member 214 to detect whether there is motion interference between the front seat 300 and the rear seat 400, thereby expanding the detection range of the fixture, improving the factory standard of the car seat, and avoiding problems such as assembly difficulties in the later stage.

[0052] like Figure 2 , 4 As shown, a first lifting ring 116 and a second lifting ring 215 are respectively threaded onto the first base plate 110 and the second base plate 210; when the inspection tool needs to be moved over a large range, it can be mechanically transported by connecting the lifting device to the first lifting ring 116 or the second lifting ring 215, thus saving manpower.

[0053] The testing process for car seats using this invention is as follows: Step 1, Independent Inspection Process for Front Seat Fixtures: Front seat installation dimension inspection → Front seat assembly dimension inspection → Inspection of other front seat design parameters → Evaluation of front seat assembly appearance and comfort. Step 2, Independent Inspection Process for Rear Seats: Rear seat installation dimension inspection → Rear seat assembly dimension inspection → Inspection of other design parameters of the rear seats → Evaluation of the appearance and comfort of the rear seat assembly. Step 3: Use a combination of front and rear seat fixtures for motion interference detection between the front and rear seats. Steps 1 and 2 above can be performed simultaneously to improve the efficiency of car seat inspection.

[0054] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A tool for inspecting front and rear seats of an automobile, characterized in that: This includes detachable front seat fixtures and rear seat fixtures; The front seat fixture includes a first base plate, on which a first mounting assembly, a first simulation assembly, and a first platform are provided. The first mounting assembly is used to install the front seat. The first simulation assembly includes a center console armrest simulation component, which includes a fixed part, a moving part, and a sliding part. The fixed part is fixed to the first base plate, the moving part is detachably mounted on the top of the fixed part, and the sliding part is slidably mounted on the first base plate. The first platform is used to place a coordinate measuring machine, and the first platform is located between the fixed part and the moving part of the center console armrest simulation component. The rear seat inspection fixture includes a second base plate, on which are mounted a second mounting component, a second simulation component, a rear seat inspection component, and a second platform. The second mounting component is used to install the rear seat. The second simulation component includes a backrest position simulator, a C-pillar simulator, a door sill protector simulator, and a front protector simulator. The rear seat inspection component is used to inspect the fit between the rear seat and surrounding components. The second platform is detachably mounted on the second base plate and is used to place a coordinate measuring machine.

2. The automotive front and rear seat inspection fixture according to claim 1, characterized in that: The first installation assembly includes several installation modules, each of which includes a support base, a cylinder, a bracket, a pressure head, and an operating table. The cylinder is fixed to the bottom of the first base plate, and the bracket is fixed to the first base plate, with the bracket located between the cylinder and the support base. The pressure head is shaped like a "2", with the output end of the cylinder passing through the first base plate and hinged to one end of the pressure head. The bent part of the pressure head is hinged to the bracket. The cylinder of each module is electrically connected to the operating table, which is used to control the output end of the cylinder to move up or down, so that the free end of the pressure head rotates downward to abut against the support base or rotates upward to move away from the support base.

3. The automotive front and rear seat inspection fixture according to claim 1, characterized in that: The rear seat detection assembly includes a first detection component, a second detection component, and a third detection component. These three components work together to detect the fit between the rear seat and the simulated front bumper panel. The first detection component can also be used alone to detect the fit between the rear seat and the simulated door sill panel. Both the first and second detection components include a fixed base, a guide post, and a detection block. The fixed base is mounted on a second base plate and has a through hole. The guide post slides within the through hole. The detection block is located at the rear end of the guide post and is used to detect the steel wires connecting the front bumper panel of the rear seat. The guide column can be moved forward to a clearance position away from the seat installation position, and backward to a detection position close to the seat installation position; the third detection component includes a base and a support rod, the base is mounted on the second base plate, and the support rod is rotatably mounted on the base. The support rod can be rotated forward to a clearance position away from the seat installation position, and backward to a detection position close to the seat installation position; the first, second, and third detection components are all equipped with detection columns, which are set on the detection block or support rod. The detection columns are used to detect the position of the front panel mounting holes of the rear seat.

4. The automotive front and rear seat inspection fixture according to claim 3, characterized in that: The first testing component has three measuring surfaces formed on its testing block: one measuring surface is used to detect the position of the front guard plate's hanging wire, and two measuring surfaces are used to detect the position of the sill guard plate's hanging wire; the second testing component has one measuring surface formed on its testing block for detecting the position of the front guard plate's hanging wire.

5. The automotive front and rear seat inspection fixture according to claim 3, characterized in that: The first and second detection components also include a handle and a locking pin. The handle is located at the front end of the guide post, and the guide post can be moved forward or backward by the handle. The guide post is provided with two locking holes, and the locking pin cooperates with the locking holes to fix the guide post in the clearance position or the detection position. The support rod of the third detection component is provided with a positioning pin, and the support rod can be pulled forward or backward by the positioning pin. The base is provided with a positioning hole, and the positioning pin cooperates with the positioning hole to fix the support rod in the detection position.

6. The automotive front and rear seat inspection fixture according to claim 1, characterized in that: The first simulation component also includes a driver's seat pedal simulator and a passenger seat pedal simulator. The tilt angle of the driver's seat pedal simulator is set to 50~60°, and the tilt angle of the passenger seat pedal simulator is set to 10~20°.

7. The automotive front and rear seat inspection fixture according to claim 1, characterized in that: The rear seat fixture also includes a mounting bracket, and the second simulation component also includes a rear pedal simulation component. Both the rear pedal simulation component and the second platform are mounted on the mounting bracket. The second base plate is provided with several slots, and the mounting bracket is provided with several insert plates that can be inserted into the slots.

8. The automotive front and rear seat inspection fixture according to claim 7, characterized in that: The bottom of the first base plate and the second base plate are respectively provided with a first support frame and a second support frame. The bottom of the first support frame, the second support frame and the mounting frame are respectively provided with a first universal brake wheel, a second universal brake wheel and a third universal brake wheel. The first universal brake wheel, the second universal brake wheel and the third universal brake wheel are all provided with Z-axis adjusting screws.

9. The automotive front and rear seat inspection fixture according to claim 1, characterized in that: The first base plate and the second base plate are respectively provided with a first connecting slot, a second connecting slot and a connector. The first connecting slot and the second connecting slot can cooperate with each other, and the connector is used to fix the first connecting slot and the second connecting slot into a whole.

10. A vehicle front and rear seat inspection fixture according to claim 1, characterized in that: The first base plate and the second base plate are respectively provided with a number of first lifting rings and a number of second lifting rings.

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