Detection tool for measuring inner plate of front leaf of automobile

Abstract

The invention relates to the technical field of automobile part detection, in particular to an automobile front leaf inner plate measurement gauge, which comprises a leaf plate detection mechanism, a front leaf inner plate detection mechanism, a front leaf inner plate detection mechanism, a front leaf inner plate detection mechanism and a rear leaf inner plate detection mechanism, the three fixing mechanisms are connected with the threaded grooves in the corresponding positions in a screwed mode and used for limiting the inner plate; the positioning detection mechanism is fixed on the workbench and is used for determining the placement position of the inner plate on the surface of the workbench and detecting the inner plate; and the position adjusting mechanism is fixed on the positioning detection mechanism and is used for controlling the lifting of the component. According to the invention, the first roller rolls on the inner plate and the pressure sensor is combined to detect the pressure value of each position of the standard component, so that the pressure data corresponding to the shape characteristics of the inner plate of the standard component can be accurately obtained, and the difference of radians, thicknesses and the like at different positions can be reflected on the pressure change. The data can be used as a high-precision reference standard for subsequent detection, and the detection precision is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component detection, in particular to a measuring and checking tool for an inner plate of an automobile front fender. Background Art

[0002] In the field of automobile manufacturing, the inner panel of the front fender of an automobile is a key component of the body structure. The precise control of its quality plays a vital role in the safety, appearance integrity and assembly accuracy of the entire vehicle. Therefore, accurately measuring the shape and size of the inner panel of the front fender of an automobile has become an indispensable part of the automobile production process, and the measuring fixture is the core tool to achieve this goal.

[0003] In the existing automobile front fender inner panel measuring and inspection fixture technology, the measuring and inspection fixture mostly adopts a fixed structure fixture design. Since the length, curvature and width of the front fender inner panel are different for different types of vehicles, when personnel need to conduct batch inspections on new types of inner panels, it usually takes a lot of time to adjust the fixture and fix the position, which affects work efficiency. Summary of the invention

[0004] The object of the present invention is to provide a measuring jig for an inner panel of a front fender of an automobile to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A measuring jig for the inner panel of a front fender of an automobile, comprising:

[0007] The blade detection mechanism comprises a workbench, wherein a plurality of thread grooves are provided at equal intervals at the center of the workbench surface;

[0008] There are three fixing mechanisms, which are respectively screwed and connected with the thread grooves at corresponding positions to limit the inner plate;

[0009] A positioning detection mechanism, fixed on the workbench, is used to determine the placement position of the inner plate on the workbench surface and detect the inner plate;

[0010] The position adjustment mechanism is fixed on the positioning detection mechanism and is used to control the lifting and lowering of the component.

[0011] Further, the fixing mechanism comprises:

[0012] A threaded rod 1 is screwed into the thread groove, and one end of the threaded rod 1 is fixedly connected with a torsion block 1.

[0013] Preferably: the fixing mechanism comprises:

[0014] A clamping block 1 is rotated on the outer wall of the torsion block 1, and one end of the clamping block 1 is fixedly connected with an arc shell;

[0015] The threaded rod 2 is rotated inside the arc-shaped shell, one end of the threaded rod 2 is located outside the outer wall of the arc-shaped shell and is fixedly connected with a torsion block 2, and the outer wall of the threaded rod 2 is screwed and connected with a clamping block 2.

[0016] Preferably: the positioning detection mechanism includes:

[0017] A linear motor is fixedly connected to the bottom wall of the workbench, and a U-shaped frame 1 is fixedly connected to the slide of the linear motor;

[0018] Two spring push rods are provided and are respectively fixed at two ends of the U-shaped frame.

[0019] Preferably: the positioning detection mechanism includes:

[0020] Slider 1 is fixed on the round tube of the spring push rod, and an electromagnet is fixedly connected to the outer wall of one side of the slider;

[0021] Two slide rails are provided, which are respectively fixed to the two sides of the workbench surface, the interior of the slide rail is slidably plugged with a slider, and a wiping mechanism is slidably plugged into the interior of the slide rail;

[0022] Scale one, fixed on the top wall of the slide rail;

[0023] Scale 2 is fixed on the round rod of the spring push rod.

[0024] Preferably: the positioning detection mechanism includes:

[0025] A rotating seat 1 is fixed at one end of the spring push rod, the outer wall of the rotating seat 1 is fixedly connected to a motor, the rotating shaft of the motor is fixedly connected to two arc-shaped frames 1 at equal angles, and the arc-shaped frames 1 are rotatably connected to the rotating seat 1;

[0026] The pressure sensor is fixed inside one end of the arc frame;

[0027] The rotating seat 2 slides in one end of the arc frame 1 and contacts the pressure sensor. The rotating seat 2 is rotatably connected with the roller 1.

[0028] Preferably: the positioning detection mechanism includes:

[0029] An L-shaped frame is fixed on one of the arc-shaped frames, and one end of the L-shaped frame is rotatably connected to a cylinder;

[0030] Whiteboard pen, detachably connected to the inside of the cylinder.

[0031] Preferably: the positioning detection mechanism includes:

[0032] The rotating seat three slides inside one end of one of the arc-shaped frames, a circular shaft one is fixedly connected between the inner walls on both sides of the rotating seat three, and a roller two is slidably connected to the outer wall of the circular shaft one.

[0033] Preferably: the position adjustment mechanism comprises:

[0034] A telescopic rod is fixed to the round rod of the spring push rod, and one end of the telescopic rod is fixedly connected to a square rod 1;

[0035] The arc frame 2 is fixed at the end of the square rod 1, a slide groove 1 is provided between the arc frame 2 and the outer wall of one side of the square rod 1, an arc hole is provided on the outer wall of the arc frame 2, a round block is slidably inserted at the position of the outer wall of the arc frame 2 near the arc hole, and a group of slide grooves 2 are provided on the outer wall of one side of the round block at equal intervals;

[0036] The second square rod slides in the second slide groove, and a ring frame is fixedly connected between the outer walls of one end of the two square rods, and the ring frame is rotatably connected to the second roller;

[0037] A U-shaped frame 2 slides between the two slide slots 1, and an electric push rod is fixedly connected to the outer wall of the U-shaped frame 2 at the center;

[0038] The U-shaped frame three is fixed on the electric push rod, and the U-shaped frame three is fixed to the round tube of the U-shaped frame two.

[0039] Preferably: the wiping mechanism comprises:

[0040] Slider 2 slides inside the slide rail, an iron block is fixedly connected to an outer wall of one side of the slider 2, and a round shaft 2 is fixedly connected between the outer walls of the two sliders 2;

[0041] The whiteboard eraser is fixed on the second outer wall of the circular shaft and is located at the center.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] 1. By rolling the roller on the inner plate and combining the pressure sensor to detect the pressure value of each position of the standard part, the pressure data corresponding to the shape characteristics of the inner plate of the standard part can be accurately obtained. Since the differences in curvature, thickness, etc. at different positions will be reflected in the pressure changes, these data can be used as high-precision reference standards for subsequent detection, effectively improving the detection accuracy. The process of rolling the roller on the inner plate of the standard part and obtaining the pressure value at the same time is relatively efficient, without the need for complicated manual measurement and multi-point positioning operations, saving a lot of preliminary preparation time and effectively improving the detection efficiency.

[0044] 2. The whiteboard pen is used to draw lines on the workbench surface as the roller moves to determine the position, which provides intuitive and accurate placement guidance for the subsequent inner panels to be tested. The operator can place the inner panels to be tested accurately in the same position and posture as the standard parts based on these clear marks, ensuring that the starting conditions of each test are highly consistent. This helps to reduce the measurement error introduced by placement deviation, and then cooperates with the fixing mechanism for limiting, making the test results more comparable and reliable. The placement position lines drawn by the whiteboard pen make the placement process of the inner panels to be tested more convenient and faster. The operator does not need to spend a lot of time on repeated position adjustments and comparisons, and can easily complete the placement operation according to the marked lines, especially in the case of large-scale inner panel testing, which effectively improves the detection efficiency.

[0045] 3. The electric push rod drives the coordinated action of the U-shaped frame 2, the arc frame 2 and other components to accurately lift the roller 2 to the height corresponding to the inner plate arc groove, effectively solving the detection difficulties caused by the difference in the shape of the inner plate. The positioning detection mechanism drives the roller 2 to measure the pressure against the outer wall of the inner plate, which can truly reflect the actual situation of the arc groove surface. Since the measuring component fits tightly against the arc groove, the pressure sensor can accurately sense the subtle changes in the arc groove surface. Whether it is the flatness of the arc groove, changes in curvature or possible defects, they can be accurately presented through changes in pressure data, effectively improving the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0047] Figure 2 It is a schematic diagram of the bottom structure of the workbench in the present invention;

[0048] Figure 3 It is a schematic diagram of the workbench structure in the present invention;

[0049] Figure 4 It is a schematic diagram of the fixing mechanism structure in the present invention;

[0050] Figure 5 It is a schematic diagram of the structure of the positioning detection mechanism in the present invention;

[0051] Figure 6 It is a schematic diagram of the local structure of the positioning detection mechanism in the present invention;

[0052] Figure 7 It is a schematic diagram of the local structure of the position adjustment mechanism in the present invention;

[0053] Figure 8 It is a structural schematic diagram of the second slideway in the present invention.

[0054] In the figure: 100, blade detection mechanism; 110, workbench; 111, threaded groove; 200, fixing mechanism; 210, threaded rod 1; 211, torsion block 1; 220, clamping block 1; 221, arc shell; 222, threaded rod 2; 223, torsion block 2; 224, clamping block 2; 300, positioning detection mechanism; 310, linear motor; 311, U-shaped frame 1; 320, spring push rod; 321, slider 1; 322, electromagnet; 323, slide rail; 324, scale 1; 325, scale 2; 326, rotating seat 1; 327, motor; 328, arc frame 1; 329, pressure sensor device; 340, rotating seat two; 341, roller one; 342, L-shaped frame; 343, cylinder; 344, whiteboard pen; 350, rotating seat three; 351, roller two; 352, round shaft one; 400, position adjustment mechanism; 410, telescopic rod; 411, square rod one; 412, arc frame two; 413, slide groove one; 414, arc hole; 415, round block; 416, slide groove two; 417, square rod two; 418, ring frame; 420, U-shaped frame two; 421, electric push rod; 422, U-shaped frame three; 500, wiping mechanism; 510, slider two; 511, round shaft two; 520, whiteboard eraser. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] See also Figures 1 to 8In an embodiment of the present invention, a measuring and checking fixture for the inner panel of a front fender of an automobile includes a fender detection mechanism 100, which includes a workbench 110 and the following parts: a plurality of thread grooves 111 are provided at equal intervals at the center of the workbench 110, and a fixing mechanism 200 is provided with three thread grooves 111, which are respectively screwed and connected with the thread grooves 111 at corresponding positions, and are used to limit the inner panel, and a positioning detection mechanism 300 is fixed on the workbench 110, and is used to determine the placement position of the inner panel on the workbench 110 and detect the inner panel, and a position adjustment mechanism 400 is fixed on the positioning detection mechanism 300, and is used to control the lifting of the component, and the fixing mechanism 200 includes the following parts: a threaded rod 210 is screwed with the thread groove 111, a torsion block 211 is fixedly connected to one end of the threaded rod 210, and a clamping block 220 rotates on the outer wall of the torsion block 211, and an arc shell 221 is fixedly connected to one end of the clamping block 220, and its threaded rod 222 rotates inside the arc shell 221, and a torsion block 223 is fixedly connected to one end of the threaded rod 222 outside the outer wall of the arc shell 221, and a clamping block 224 is screwed and connected to the outer wall of the threaded rod 222. The positioning detection mechanism 300 includes the following parts: its linear motor 310 is fixedly connected to the bottom wall of the workbench 110, and a U-shaped frame 311 is fixedly connected to the slide of the linear motor 310, and its spring push rod 320 is provided with two, respectively The first and second slide rails 323 are fixed at both ends of the U-shaped frame 311, and the slider 321 is fixed on the round tube of the spring push rod 320. An electromagnet 322 is fixedly connected to the outer wall of one side of the slider 321. Two slide rails 323 are provided, which are respectively fixed to the two sides of the workbench 110. The inside of the slide rail 323 is slidably plugged with the slider 321. A wiping mechanism 500 is slidably plugged inside the slide rail 323. A scale 324 is fixed to the top wall of the slide rail 323. A scale 2 325 is fixed on the round rod of the spring push rod 320. A rotating seat 326 is fixed at one end of the spring push rod 320. A motor 327 is fixedly connected to the outer wall of the rotating seat 326, and two screws are fixedly connected at equal angles to the rotating shaft of the motor 327. An arc frame 328 is provided, and the arc frame 328 is rotatably connected to a rotating seat 326, wherein a pressure sensor 329 is fixed inside one end of the arc frame 328, and a rotating seat 340 slides inside one end of the arc frame 328 and contacts the pressure sensor 329, wherein the rotating seat 340 is rotatably connected to a roller 341, and by rolling the roller 341 on the inner plate and combining with the pressure sensor 329 to detect the pressure value of each position of the standard part, the pressure data corresponding to the shape characteristics of the inner plate of the standard part can be accurately obtained, and since the differences in the curvature, thickness, etc. at different positions will be reflected in the pressure changes, these data can be used as a high-precision reference standard for subsequent detection, effectively improving the detection accuracy.

[0057] The positioning detection mechanism 300 includes the following parts: its L-shaped frame 342 is fixed on one of the arc-shaped frames 328, and a cylinder 343 is rotatably connected to one end of the L-shaped frame 342, and a whiteboard pen 344 is detachably connected to the inside of the cylinder 343. The whiteboard pen 344 moves with the roller 341 to draw a line on the surface of the workbench 110 to determine the position, which provides an intuitive and accurate placement guide for the subsequent inner plate to be tested. The operator can place the inner plate to be tested accurately in the same position and posture as the standard part based on these clear marks, ensuring that the starting conditions of each test are highly consistent, which helps to reduce the measurement error introduced by the placement deviation, and then cooperates with the fixing mechanism 200 to limit the position, so that the test results are more comparable and reliable.

[0058] The positioning detection mechanism 300 includes the following parts: its rotating seat 350 slides inside one end of one of the arc frames 328, a round shaft 352 is fixedly connected between the inner walls on both sides of the rotating seat 350, and a roller 2 351 is slidably connected to the outer wall of the round shaft 352, and the position adjustment mechanism 400 includes the following parts: its telescopic rod 410 is fixed to the round rod of the spring push rod 320, a square rod 411 is fixedly connected to one end of the telescopic rod 410, and its arc frame 2 412 is fixed to one end of the square rod 411, a sliding groove 413 is opened between the arc frame 2 412 and the outer wall of one side of the square rod 411, and an arc hole 414 is opened on the outer wall of the arc frame 2 412, and a round block 415 is slidably inserted at the position of the outer wall of the arc frame 2 412 near the arc hole 414, and a group of sliding The second groove 416, its square rod 417 slides in the second slide groove 416, a ring frame 418 is fixedly connected between the outer walls of one end of the two square rods 417, and the ring frame 418 is rotatably connected to the second roller 351, and its U-shaped frame 420 slides between the two slide grooves 1 413, and an electric push rod 421 is fixedly connected to the outer wall of the U-shaped frame 420 at the center, and the U-shaped frame three 422 is fixed on the electric push rod 421, and the U-shaped frame three 422 is fixed to the round tube of the U-shaped frame two 420. The electric push rod 421 drives the coordinated action of the U-shaped frame two 420, the arc frame two 412 and other components, and the component roller two 351 can be accurately lifted and lowered to the height corresponding to the position of the inner plate arc groove, which effectively solves the detection difficulty caused by the difference in the shape of the inner plate, and cooperates with the positioning detection mechanism 300 to drive the roller two 351 to measure the pressure against the outer wall of the inner plate.

[0059] The wiping mechanism 500 includes the following parts: a slider 510 that slides inside the slide rail 323, and an iron block is fixedly connected to the outer wall of one side of the slider 510, a circular shaft 511 is fixedly connected between the outer walls of the two sliders 510, and a whiteboard eraser 520 is fixed on the outer wall of the circular shaft 511 at the center.

[0060] Specifically, during work, the personnel first place the standard front leaf inner plate in the area with the thread groove 111 on the workbench 110, align one end of the inner plate with the position between the two rollers 341, use three fixing mechanisms 200 to respectively screw with the thread grooves 111 near the two ends and the middle of the inner plate, screw until the bottom wall of the arc shell 221 is against the outer wall of the inner plate, twist the twist block 223 to make the clamp block 224 and the clamp block 1 220 stick to the outer wall of the inner plate, limit the standard part, install the whiteboard pen 344 at the cylinder 343, and after the preparation work is completed, the linear motor 310 drives the positioning detection mechanism 300 to move toward the inner plate, and the roller 1 341 It contacts the outer wall of the inner plate and is affected by the rebound of the spring push rod 320, so that the roller 1 341 is tightly attached to the outer wall of the inner plate and rolls. During this period, the pressure sensor 329 is squeezed by the rotating seat 2 340, and the pressure value of the outer wall of the standard part at the current position can be detected, which can be used as a reference value. During the movement, the whiteboard pen 344 will stick to the bottom of the standard part and draw a line along the standard part on the workbench 110 until it reaches the other end of the standard part. The pressure sensor 329 has measured the pressure value of each position of the standard part and uses it as a reference number. After the end, the personnel will remove the whiteboard pen 344 and place the inner plate to be tested on the drawing At the line position, repeat the above operation to detect the inner plate, compare the detected pressure value with the pressure value detected by the standard part to determine whether it is qualified, a scale 2 325 is set on the round rod of the spring push rod 320 and a scale 1 324 is set on the slide rail 323, which can facilitate personnel to conduct spot checks to check whether the scale number of the specified position is consistent with the degree transmitted by the data, to determine whether there is a detection error in the blade detection mechanism 100, and make adjustments. Because different types of inner plates have different shapes, some have arc grooves. When it is necessary to detect the arc grooves on the surface of the inner plate, the electric push rod 421 drives the U-shaped frame 2 420 to Lifting, U-shaped frame 2 420 drives arc frame 2 412 to lift, arc frame 2 412 drives roller 2 351 rotatably connected to ring frame 418 to lift to the height corresponding to the arc groove, motor 327 drives roller 2 351 to rotate to the position of roller 1 341, positioning detection mechanism 300 drives roller 2 351 to measure against the outer wall of the inner plate, when the new plate type needs to be detected, linear motor 310 drives positioning detection mechanism 300 to move to the electromagnet 322 to stick to the iron block on slider 2 510, and adsorbs it, driving whiteboard eraser 520 to move together, and erase the line drawn by whiteboard pen 344.

[0061] Embodiment 1

[0062] like Figure 1-6As shown, in this embodiment, the fixing mechanism 200 includes the following parts: a threaded rod 210 is screwed with the thread groove 111, a torsion block 211 is fixedly connected to one end of the threaded rod 210, and a clamping block 220 rotates on the outer wall of the torsion block 211, an arc shell 221 is fixedly connected to one end of the clamping block 220, a threaded rod 222 rotates inside the arc shell 221, and one end of the threaded rod 222 is fixedly connected to the outer wall of the arc shell 221. There is a torsion block 223, and a clamp block 224 is screwed and connected to the outer wall of the threaded rod 222. The positioning detection mechanism 300 includes the following parts: a linear motor 310 is fixedly connected to the bottom wall of the workbench 110, a U-shaped frame 311 is fixedly connected to the slide of the linear motor 310, and two spring push rods 320 are provided, which are respectively fixed at the two ends of the U-shaped frame 311, and a slider 321 is fixed on the round tube of the spring push rod 320. An electromagnet 322 is fixedly connected to the outer wall of one side of the workbench 110, and two slide rails 323 are provided, which are respectively fixed to the two sides of the workbench 110. The inside of the slide rail 323 is slidably plugged with the slider 1 321, and the wiping mechanism 500 is slidably plugged inside the slide rail 323. The scale 1 324 is fixed to the top wall of the slide rail 323, and the scale 2 325 is fixed to the round rod of the spring push rod 320. The rotating seat 1 326 is fixed to one end of the spring push rod 320. A motor 327 is fixedly connected to the outer wall of the rotating seat 326, and two arc frames 328 are fixedly connected at equal angles to the rotating shaft of the motor 327. The arc frame 328 is rotatably connected to the rotating seat 326, and its pressure sensor 329 is fixed inside one end of the arc frame 328. The rotating seat 340 slides inside one end of one of the arc frames 328 and contacts the pressure sensor 329. The rotating seat 340 is rotatably connected to a roller 341.

[0063] In this embodiment, personnel first place a standard front leaf inner panel on the workbench 110 in the area with the thread groove 111, align one end of the inner panel with the area between the two rollers 341, use three fixing mechanisms 200 to respectively screw with the thread grooves 111 near the two ends and the middle of the inner panel, screw until the bottom wall of the arc shell 221 is against the outer wall of the inner panel, twist the twist block 223 to make the clamp block 224 and the clamp block 1 220 stick to the outer wall of the inner panel, limit the standard part, install the whiteboard pen 344 on the cylinder 343, after the preparation work is completed, the linear motor 310 drives the positioning detection mechanism 300 to move toward the inner panel, the roller 1 341 contacts the outer wall of the inner panel, and is affected by the rebound of the spring push rod 320, so that the roller 1 341 is tightly attached to the outer wall of the inner panel, and is moved. During the rolling, the pressure sensor 329 is squeezed by the rotating seat 340, and the pressure value of the outer wall of the current position of the standard part can be detected, which can be used as a reference value. By rolling the roller 341 on the inner plate and combining with the pressure sensor 329 to detect the pressure value of each position of the standard part, the pressure data corresponding to the shape characteristics of the inner plate of the standard part can be accurately obtained. Since the differences in curvature, thickness, etc. at different positions will be reflected in the pressure change, these data can be used as high-precision reference standards for subsequent detection, effectively improving the detection accuracy, and the process of rolling the roller 341 on the inner plate of the standard part and obtaining the pressure value at the same time is relatively efficient, without the need for complicated manual measurement and multi-point positioning operations, saving a lot of preliminary preparation time, and effectively improving the detection efficiency.

[0064] like Figure 6 As shown, in this embodiment, the positioning detection mechanism 300 includes the following parts: its L-shaped frame 342 is fixed on one of the arc-shaped frames 328, a cylinder 343 is rotatably connected to one end of the L-shaped frame 342, and a whiteboard pen 344 is detachably connected to the inside of the cylinder 343.

[0065] In specific implementation, during the movement, the whiteboard pen 344 will stick to the bottom of the standard part and draw lines along the standard part on the workbench 110 until it reaches the other end of the standard part. The pressure sensor 329 has measured the pressure value of each position of the standard part and used it as a reference number. The whiteboard pen 344 moves with the roller 341 to draw lines on the workbench 110 to determine the position, which provides an intuitive and accurate placement guide for the subsequent inner plate to be tested. The operator can place the inner plate to be tested accurately in the same position and posture as the standard part based on these clear marks, ensuring that the starting conditions of each test are highly consistent, which helps to reduce the measurement error introduced by the placement deviation, and then cooperates with the fixing mechanism 200 for limiting, so that the test results are more comparable and reliable, and the placement position line drawn by the whiteboard pen 344 makes the placement process of the inner plate to be tested more convenient and faster, and the operator does not need to spend a lot of time on repeated position adjustment and comparison, and can easily complete the placement operation according to the marked line, especially in the case of large-scale inner plate detection, which effectively improves the detection efficiency.

[0066] Embodiment 2

[0067] like Figure 1 , Figure 7 and Figure 8 As shown, in this embodiment, the positioning detection mechanism 300 includes the following parts: its rotating seat 350 slides inside one end of one of the arc-shaped frames 1 328, a round shaft 1 352 is fixedly connected between the inner walls on both sides of the rotating seat 350, and a roller 2 351 is slidably connected to the outer wall of the round shaft 1 352, and the position adjustment mechanism 400 includes the following parts: its telescopic rod 410 is fixed to the round rod of the spring push rod 320, a square rod 1 411 is fixedly connected to one end of the telescopic rod 410, and its arc-shaped frame 2 412 is fixed to one end of the square rod 1 411, a sliding groove 1 413 is opened between the outer wall of the arc-shaped frame 2 412 and one side of the square rod 1 411, and a roller 2 351 is slidably connected to the outer wall of the arc-shaped frame 2 412. An arc hole 414 is provided on the outer wall of the arc frame 2 412, and a round block 415 is slidably inserted at a position near the arc hole 414 on the outer wall of the arc frame 2 412. A group of slide grooves 416 are provided at equal intervals on the outer wall of one side of the round block 415. The square rod 2 417 slides in the slide grooves 416. A ring frame 418 is fixedly connected between the outer walls of one end of the two square rods 417. The ring frame 418 is rotatably connected to the roller 2 351. The U-shaped frame 2 420 slides between the two slide grooves 1 413. An electric push rod 421 is fixedly connected at the center of the outer wall of the U-shaped frame 2 420. The U-shaped frame 3 422 is fixed on the electric push rod 421, and the U-shaped frame 3 422 is fixed to the round tube of the U-shaped frame 2 420.

[0068] In specific implementation, since different types of inner plates have different shapes, some have arc grooves. When it is necessary to detect the arc grooves on the surface of the inner plate, the electric push rod 421 drives the U-shaped frame 420 to rise and fall, the U-shaped frame 420 drives the arc frame 412 to rise and fall, the arc frame 412 drives the roller 351 rotatably connected to the ring frame 418 to rise and fall to the height corresponding to the arc groove, the motor 327 drives the roller 351 to rotate to the position of the roller 1 341, the positioning detection mechanism 300 drives the roller 351 to measure against the outer wall of the inner plate, and the electric push rod 421 drives the U-shaped frame 420 and the arc frame 412 to rise and fall. The synergistic effect of components such as the second 412 can accurately raise and lower the component roller 351 to a height corresponding to the position of the inner plate arc groove, effectively solving the detection difficulties caused by the difference in the shape of the inner plate, and cooperating with the positioning detection mechanism 300 to drive the second roller 351 to measure the pressure against the outer wall of the inner plate, which can truly reflect the actual situation of the arc groove surface. Since the measuring component fits tightly against the arc groove, the pressure sensor 329 can accurately sense the subtle changes in the arc groove surface, whether it is the flatness of the arc groove, changes in curvature or possible defects, they can all be accurately presented through changes in pressure data, effectively improving the accuracy of detection.

[0069] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0070] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A measuring fixture for the inner panel of a front fender of an automobile, characterized in that: include: The blade detection mechanism (100) comprises a workbench (110), wherein a plurality of thread grooves (111) are provided at equal intervals at the center of the workbench (110); Three fixing mechanisms (200) are provided, which are respectively screwed and connected with the thread grooves (111) at corresponding positions and are used to limit the inner plate; A positioning detection mechanism (300) is fixed on the workbench (110) and is used to determine the placement position of the inner plate on the workbench (110) and detect the inner plate; The position adjustment mechanism (400) is fixed on the positioning detection mechanism (300) and is used to control the lifting and lowering of the component.

2. The automobile front fender inner panel measuring jig according to claim 1, characterized in that: The fixing mechanism (200) comprises: The threaded rod (210) is screwed together with the thread groove (111), and one end of the threaded rod (210) is fixedly connected to a torsion block (211).

3. The automobile front fender inner panel measuring jig according to claim 2, characterized in that: The fixing mechanism (200) comprises: A clamping block (220) is rotated on the outer wall of the twisting block (211), and one end of the clamping block (220) is fixedly connected to an arc-shaped shell (221); The second threaded rod (222) is rotated inside the arc-shaped shell (221), one end of the second threaded rod (222) is located outside the outer wall of the arc-shaped shell (221) and is fixedly connected to the second torsion block (223), and the outer wall of the second threaded rod (222) is screwed and connected to the second clamping block (224).

4. The automobile front fender inner panel measuring jig according to claim 3, characterized in that: The positioning detection mechanism (300) comprises: A linear motor (310) is fixedly connected to the bottom wall of the workbench (110), and a U-shaped frame (311) is fixedly connected to the slide of the linear motor (310); Two spring push rods (320) are provided and are respectively fixed at two ends of the U-shaped frame (311).

5. The automobile front fender inner panel measuring jig according to claim 4, characterized in that: The positioning detection mechanism (300) comprises: Slider 1 (321) is fixed on the round tube of the spring push rod (320), and an electromagnet (322) is fixedly connected to the outer wall of one side of the slider 1 (321); Two slide rails (323) are provided, which are respectively fixed to the two sides of the workbench (110), the interior of the slide rail (323) is slidably plugged with the slider (321), and the interior of the slide rail (323) is slidably plugged with a wiping mechanism (500); A scale ruler (324) is fixed on the top wall of the slide rail (323); The second scale (325) is fixed on the round rod of the spring push rod (320).

6. The automobile front fender inner panel measuring jig according to claim 5, characterized in that: The positioning detection mechanism (300) comprises: A rotating seat (326) is fixed at one end of the spring push rod (320), and a motor (327) is fixedly connected to the outer wall of the rotating seat (326). The rotating shaft of the motor (327) is fixedly connected to two arc-shaped frames (328) at equal angles, and the arc-shaped frames (328) are rotatably connected to the rotating seat (326); A pressure sensor (329) is fixed inside one end of the arc-shaped frame (328); The second rotating seat (340) slides inside one end of one of the arc-shaped frames (328) and contacts the pressure sensor (329). The second rotating seat (340) is rotatably connected to the first roller (341).

7. The automobile front fender inner panel measuring jig according to claim 6, characterized in that: The positioning detection mechanism (300) comprises: An L-shaped frame (342) is fixed on one of the arc-shaped frames (328), and one end of the L-shaped frame (342) is rotatably connected to a cylinder (343); The whiteboard pen (344) is detachably connected to the inside of the cylinder (343).

8. The automobile front fender inner panel measuring jig according to claim 7, characterized in that: The positioning detection mechanism (300) comprises: The rotating seat three (350) slides inside one end of one of the arc-shaped frames one (328), and a circular shaft one (352) is fixedly connected between the inner walls on both sides of the rotating seat three (350), and a roller two (351) is slidably connected to the outer wall of the circular shaft one (352).

9. The automobile front fender inner panel measuring jig according to claim 8, characterized in that: The position adjustment mechanism (400) comprises: A telescopic rod (410) is fixed to the round rod of the spring push rod (320), and one end of the telescopic rod (410) is fixedly connected to a square rod 1 (411); The arc frame 2 (412) is fixed at one end of the square rod 1 (411), a slide groove 1 (413) is provided between the arc frame 2 (412) and the outer wall of one side of the square rod 1 (411), an arc hole (414) is provided on the outer wall of the arc frame 2 (412), a round block (415) is slidably inserted at a position of the outer wall of the arc frame 2 (412) near the arc hole (414), and a group of slide grooves 2 (416) are provided at equal intervals on the outer wall of one side of the round block (415); The second square rod (417) slides in the second slide groove (416), and a ring frame (418) is fixedly connected between the outer walls of one end of the two second square rods (417), and the ring frame (418) is rotatably connected to the second roller (351); The U-shaped frame 2 (420) slides between the two slide grooves 1 (413), and the outer wall of the U-shaped frame 2 (420) is fixedly connected to an electric push rod (421) at the center; The U-shaped frame 3 (422) is fixed on the electric push rod (421), and the U-shaped frame 3 (422) is fixed to the round tube of the U-shaped frame 2 (420).

10. The automobile front fender inner panel measuring jig according to claim 5, characterized in that: The wiping mechanism (500) comprises: The second slider (510) slides inside the slide rail (323), an iron block is fixedly connected to the outer wall of one side of the second slider (510), and a second round shaft (511) is fixedly connected between the outer walls of the two second sliders (510); The whiteboard eraser (520) is fixed on the outer wall of the second circular shaft (511) and is located at the center.

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