Auxiliary detection system for automobile exterior trimming panel production

Abstract

The invention relates to the technical field of automobile exterior trimming panel production, in particular to an auxiliary detection system for automobile exterior trimming panel production, which solves the defects in the prior art, and comprises a workbench, a moving structure, a cutting structure and a detection structure, the moving structure is adjusted in a sliding mode in the length direction of the boss, a plurality of top balls moving along an arc-shaped track and two horizontal movement adjusting baffles are arranged on the moving structure, the cutting structure is arranged between the side walls of the workbench, and a cutting piece capable of being adjusted in a rotating mode is arranged at the bottom of the cutting structure. Compared with the prior art, the auxiliary detection system has the advantage that the automation degree of the auxiliary detection system is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of automotive exterior panel production technology, and in particular to an auxiliary testing system for automotive exterior panel production. Background Technology

[0002] Automotive exterior trim panels (such as door panels, side skirts, and bumpers) are an important component of the car body, and their appearance quality directly affects the overall visual effect and brand image of the vehicle. Currently, automotive exterior trim panels generally use plastics (such as PP, ABS, PC / ABS, etc.) as the base material, and are given rich colors, textures, and protective properties through processes such as spraying and lamination (applying car film).

[0003] In painting or laminating processes, the adhesion strength between the paint film or coating and the plastic substrate is one of the core key indicators for measuring product quality. Insufficient adhesion can lead to a series of serious quality defects. For example, during subsequent transportation, assembly, and use, external forces such as vibration, minor bumps, temperature changes, or high-pressure water impacts from car washes can easily cause the paint film or coating to bubble, crack, or even peel off in parts, severely affecting the product's appearance. More fundamentally, poor adhesion can significantly reduce the corrosion resistance, weather resistance, and service life of exterior panels. Once the paint film is damaged, external moisture and corrosive substances will directly erode the plastic substrate, causing product malfunction.

[0004] In existing technologies, the testing of paint / vehicle film adhesion mainly relies on traditional manual visual inspection and destructive sampling tests. Chinese invention patent CN105259109A discloses a coating adhesion testing fixture. This technical solution effectively improves the accuracy and consistency of coating adhesion testing by automating the movement, cutting angle, speed, and pressure of the cutting tool, and is particularly suitable for small-sized or curved samples. However, this solution still has some potential technical defects or areas for optimization: the cut grid pattern still requires manual application of tape, peeling, and visual evaluation, which introduces subjective judgment errors and prevents full automation. Therefore, it is necessary to provide an auxiliary testing system for automotive exterior panel production to address the aforementioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary inspection system for the production of automotive exterior panels, in order to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: An auxiliary inspection system for automobile exterior panel production includes a worktable, a moving structure, a scribing structure, and an inspection structure. A PLC controller is provided on the worktable, and a boss is provided on the worktable. The movable structure is slidably adjusted along the length of the boss, and the movable structure is provided with multiple top balls that move along an arc trajectory and two baffles that adjust horizontal movement. The slicing structure is set between the side walls of the workbench, and the bottom of the slicing structure is provided with a rotatable and adjustable cutting component, which can slice in a cross-shaped motion trajectory. The detection structure is located on one side of the cutting structure and is also set between the side walls of the workbench. Swing components are set on both sides of the detection structure, and an adjustment component is set between the swing components on both sides. An adhesion roller is set at the bottom of the adjustment component, and a feedback component is set on both sides of the adjustment component.

[0007] Compared with the prior art, the beneficial effects achieved by the present invention are: By setting up a moving structure, a cutting structure, and a detection structure, the moving structure serves as the carrier for transporting and testing the exterior trim panel under test. Positioning is achieved through the matching of sensors with transmitter one and transmitter two. When the moving structure moves to the bottom of the cutting structure, the back-and-forth rotation of adjustment flap one and adjustment flap two, combined with the fixed state of the moving components, can simulate the process of manually cutting a cross grid. When the moving structure continues to move to the bottom of the detection structure, the adjustment components grasp the corners at the cutting position and lift them to both sides. During the elastic adjustment of the feedback components on both sides, the pressure sensor can monitor the pressure acting on the sensor, and the critical value of the pressure change is used to provide feedback on the adhesion strength of the test, effectively improving the automation level of the auxiliary detection system. Attached Figure Description

[0008] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0009] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the moving structure of the present invention; Figure 3 yes Figure 2 A longitudinal sectional view; Figure 4 This is a schematic diagram of the slicing structure of the present invention; Figure 5 This is a schematic diagram showing the connection of the first adjusting petal, the second adjusting petal, the movable component, and the cutting element of the present invention; Figure 6 yes Figure 5 A longitudinal sectional view; Figure 7 This is a schematic diagram of the detection structure of the present invention; Figure 8 This is a schematic diagram of the structure of the swing assembly of the present invention; Figure 9 This is a schematic diagram of the structure of the adjustment component of the present invention; Figure 10 This is a schematic diagram showing the connection between the adhesion roller and the clamping flap of the present invention; Figure 11 This is a schematic diagram of the feedback component of the present invention.

[0010] In the diagram: 1. Workbench; 11. PLC controller; 12. Boss; 121. Screw 1; 2. Moving structure; 21. Base; 211. Limit bar; 22. Moving plate; 221. Baffle; 222. Connecting end; 23. Adjusting plate 1; 231. Adjusting arm; 24. Arc strip; 241. Top ball; 25. Sensor; 26. Tension spring; 3. Cutting structure; 31. Fixed frame 1; 311. Support 1; 312. Support 2; 313. Transmitter 1; 32. Adjusting petal 1; 33. Adjusting petal 2; 34. Moving assembly; 341. Upper sliding plate; 342. Lower sliding plate; 343. Synchronous shaft; 344. Electric push rod 1; 345. Positioning seat; 35. Piston shaft; 3 51. Cutting component; 352. Limiting shaft; 4. Detection structure; 41. Fixing frame two; 411. Connecting shaft one; 412. Launcher two; 413. Rope release ring; 42. Swing assembly; 421. Adjusting plate two; 422. Gear; 423. Lifting seat one; 424. Connecting shaft two; 425. Limiting ring; 426. Telescopic cylinder; 43. Adjusting assembly; 431. Rotating component one; 432. Rotating component two; 433. Key shaft; 434. Connecting shaft three; 435. Adhesion roller; 436. Clamping flap; 437. Pushing component; 44. Feedback assembly; 441. Motor base; 442. Rotating frame; 443. Lifting seat two; 444. Connecting shaft four; 445. Pressure sensor. Detailed Implementation

[0011] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0012] like Figure 1As shown, the present invention provides a technical solution: an auxiliary inspection system for automobile exterior panel production, including a workbench 1, a moving structure 2, a scribing structure 3, and an inspection structure 4. A boss 12 is integrally connected to the workbench 1. The moving structure 2 is slidably arranged along the length of the boss 12. An exterior panel to be inspected is placed on the moving structure 2. The scribing structure 3 and the inspection structure 4 are sequentially arranged along the length of the workbench 1. The moving structure 2 passes through the scribing structure 3 first and then the inspection structure 4. When the moving structure 2 moves the exterior panel directly below the scribing structure 3, the scribing structure 3 performs a cross-shaped scribing cut at the top center of the exterior panel. Then, when the moving structure 2 continues to move the exterior panel directly below the inspection structure 4, the inspection structure 4 performs auxiliary inspection of the scribing cut area on the exterior panel to confirm the adhesion effect of the paint film formed by the paint spraying or the car film applied to the exterior panel.

[0013] Among them, Figure 1 In the process, a PLC controller 11 is fixedly installed on the top surface of the workbench 1. A top groove is provided on the boss 12, and a screw 121 is rotatably installed in the top groove. A rotary motor is connected to one end of the screw 121, and the rotary motor is fixedly installed on the end wall of the boss 12.

[0014] like Figure 2-3 As shown, the movable structure 2 includes a base 21, a movable plate 22, an adjusting plate 23, an arc-shaped strip 24, and a tension spring 26; Two symmetrically distributed limiting strips 211 are fixed on the bottom wall of the base 21. The two limiting strips 211 slide and adjust along the side walls of the boss 12 on both sides of the length direction. An inner cavity is provided in the base 21. Two relatively movable plates 22 are slidably arranged between the inner walls of the inner cavity. A baffle 221 is fixedly installed on the top surface of the movable plate 22. Rivets are provided on the opposite side wall surfaces of the two baffles 221. Dovetail-shaped guide strips (not shown in the figure) are fixed on the side walls of the movable plate 22. The guide strips slide along the inner wall of the inner cavity and never leave the inner cavity. Connecting ends 222 are fixedly installed on the opposite end walls of the two movable plates 22. Two sets of tension springs 26 are fixedly installed between the two connecting ends 222.

[0015] It should be further explained that when placing the exterior trim panel, the exterior trim panel is placed between the two side baffles 221. The two side baffles 221 are removed, so that the tension spring 26 is stretched by the moving plate 22, so that the two ends of the exterior trim panel abut against the two side baffles 221 respectively. Then the baffles 221 are slowly released, so that the two side baffles 221 firmly clamp and fix the exterior trim panel under the action of the rebound force of the tension spring 26.

[0016] The base 21 is also provided with four sets of side grooves. An adjustment plate 23 (driven by a motor, not shown in the figure) is rotatably arranged in the side groove. A bottom groove is also provided on the bottom wall of the adjustment plate 23. Two adjustment arms 231 (driven by a motor, not shown in the figure) are rotatably arranged in the bottom groove by coaxial rotation. An arc-shaped strip 24 is provided between the other end walls of the two adjustment arms 231 by a shaft. A top ball 241 is elastically provided on the other end of the arc-shaped strip 24, and one end of the arc-shaped strip 24 passes through the adjustment plate 23 and slides in contact with it.

[0017] It should be further explained that after the two side baffles 221 fix the outer trim panel, the first motor is started, which drives the first adjusting plate 23 to make a circular motion through the shaft. After the first adjusting plate 23 rotates to a suitable angle, the first motor is stopped. Then, the second motor is started, which drives the arc strip 24 to make a circular motion through the shaft. As the arc strip 24 moves closer to the outer surface of the outer trim panel, it drives the top ball 241 to move closer at the same time. Once the top ball 241 is firmly pressed against the outer surface of the outer trim panel, the second motor is stopped. Thus, the fixing effect of the outer trim panel is achieved through the cooperation of the baffles 221 and the top ball 241.

[0018] A sensor 25 is also fixedly installed on the side wall of one of the limiting strips 211.

[0019] like Figure 4-6 As shown, the slicing structure 3 includes a fixed frame 31, an adjusting flap 32, an adjusting flap 33, a movable component 34, and an output component; The fixed frame 31 has a "U" shaped structure and is fixedly installed between the side walls of the workbench 1. A transmitter 313 is embedded in one side wall of the fixed frame 31. The transmitter 313 matches the sensor 25. Two supports 311 and two supports 312 are fixedly installed on the fixed frame 31. An adjustment flap 32 is rotatably connected between the supports 311 on both sides via a shaft. An adjustment flap 33 is rotatably connected between the supports 312 on both sides via a shaft. Both the adjustment flap 32 and the adjustment flap 33 have through holes. A motor 3 and a motor 4 are respectively installed on one of the supports 311 and the support 312. The motor 3 drives the adjustment flap 32 to rotate, and the motor 4 drives the adjustment flap 33 to rotate.

[0020] A movable component 34 is slidably arranged between the first adjustment lobe 32 and the second adjustment lobe 33. The movable component 34 includes an upper slide plate 341, a lower slide plate 342 and a synchronous shaft 343. The upper slide plate 341 slides along the upper arc surface of the first adjustment lobe 32, and the lower slide plate 342 slides along the lower arc surface of the second adjustment lobe 33. The synchronous shaft 343 is fixedly connected between the upper slide plate 341 and the lower slide plate 342, and the synchronous shaft 343 passes through the lower slide plate 342. A limiting groove is also provided at the bottom edge of the synchronous shaft 343.

[0021] Among them, an electric push rod 344 is fixedly installed on one side wall of the first adjustment valve 32 and the second adjustment valve 33, and a positioning seat 345 is fixedly installed on one side wall of the upper slide plate 341 and the lower slide plate 342. The push rod of the electric push rod 344 can be inserted into the positioning seat 345.

[0022] It should be further explained that, in state 1: by controlling the electric push rod 344 on the first adjusting valve 32 to connect with the upper positioning seat 345, the upper sliding plate 341 is synchronized with the first adjusting valve 32. Then, by controlling the rotation of the first adjusting valve 32, the first adjusting valve 32 drives the movable component 34 to swing back and forth. In state 2: by controlling the electric push rod 344 on the second adjusting valve 33 to connect with the lower positioning seat 345, the lower sliding plate 342 is synchronized with the second adjusting valve 33. Then, by controlling the rotation of the second adjusting valve 33, the second adjusting valve 33 drives the movable component 34 to swing back and forth. The synchronization of the upper sliding plate 341 with the first adjusting lobe 32 and the synchronization of the lower sliding plate 342 with the second adjusting lobe 33 cannot occur simultaneously; one must be in a synchronized state while the other is in an unsynchronized state. As either the first adjusting lobe 32 or the second adjusting lobe 33 reciprocates, the lower output component performs a cross-shaped cut on the outer surface of the outer trim panel. It is worth noting that when switching between state 1 and state 2, both the first adjusting lobe 32 and the second adjusting lobe 33 are in their initial positions, meaning the active component 34 is located between the first adjusting lobe 32 and the second adjusting lobe 33 (e.g., ...). Figure 5 (As shown) and the rotation angles of adjustment lobe 1 32 and adjustment lobe 2 33 are both 0.

[0023] The output assembly includes a piston shaft 35 and a cutting element 351. One end of the piston shaft 35 always slides between the inner walls of the synchronous shaft 343, and a spring is connected between the top end of the piston shaft 35 and the inner wall of the synchronous shaft 343. Two limiting shafts 352 are fixedly arranged on the circumferential surface of the piston shaft 35 near the bottom end. The limiting shafts 352 match the limiting grooves and are located in the same vertical direction. The cutting element 351 is rotatably arranged on the bottom end of the piston shaft 35 through a U-shaped frame. In this embodiment, the cutting element 351 is a circular saw blade, and a motor 5 is also connected above the U-shaped frame. The motor 5 is installed between the inner walls of the piston shaft 35 (not shown in the figure).

[0024] It should be further explained that during the cutting process, the cutting actuating element 351 swings back and forth with the moving component 34. During the swing, the cutting actuating element 351 contacts and scratches the outer surface of the outer trim panel. Since a spring is provided between the piston shaft 35 and the synchronous shaft 343, the depth of contact and scratching between the cutting actuating element 351 and the outer trim panel can be adjusted by the adjustability of the spring during the process of the cutting actuating element 351 contacting the outer trim panel, thereby ensuring effective cutting.

[0025] like Figure 7-11 As shown, the detection structure 4 includes a fixed frame 41, a swing assembly 42, an adjustment assembly 43, and a feedback assembly 44; The second fixing frame 41 has a "U" shaped structure and is fixedly installed between the side walls of the workbench 1. A second transmitter 412 is embedded on one side wall of the second fixing frame 41. The second transmitter 412 is matched with the sensor 25. The first transmitter 313, the second transmitter 412 and the sensor 25 are all located on the same side. Two connecting shafts 411 are rotatably arranged between the side walls of the second fixing frame 41. Two rope release rings 413 are fixedly installed on the upper bottom wall of the second fixing frame 41 by means of shaft connection. The rope release rings 413 have a hollow structure and a pull rope is wound inside. The connecting shafts 411 pass through the rope release rings 413 and rotate in contact with them.

[0026] The swing assembly 42 includes an adjustment plate 421, a gear 422, a lifting seat, a connecting shaft 424, and a telescopic cylinder 426; Two gears 422 are fixedly installed on the connecting shaft 411 and synchronized with it. An adjusting plate 421 is provided on one side of the gear 422. The adjusting plate 421 is also installed on the connecting shaft 411 and synchronized with it. The gears 422 on both sides are meshed and driven by each other. Mounting seats are fixedly provided on the side walls of the two adjusting plates 421 on the same side. The fixed end (i.e., the cylinder part) of the telescopic cylinder 426 is rotatably set between the side walls of one of the mounting seats through a shaft connection, while the movable end (i.e., the telescopic shaft part) of the telescopic cylinder 426 is rotatably set between the side walls of the other mounting seat through a shaft connection.

[0027] A vertically arranged side groove 2 is provided on one side wall of the adjusting plate 2 421. A screw 2 is installed in the side groove 2 through the rotation of a motor 6 (the motor 6 is installed between the inner walls of the adjusting plate 2 421, not shown in the figure). A lifting seat 1 423 (with a "convex" structure) is slidably arranged along the inner wall of the side groove 2. The screw 2 passes through the lifting seat 1 423 and is engaged with it through threaded transmission. A connecting shaft 2 424 is fixedly installed between the two opposing lifting seats 1 423. Two limiting rings 425 are symmetrically arranged on the connecting shaft 2 424 near the middle position. The limiting rings 425 are fixed to the connecting shaft 2 424 as one piece.

[0028] It should be further explained that by activating the telescopic cylinder 426, the two adjusting plates 421 on both sides move away from or towards each other. Due to the shaft connection between the telescopic cylinder 426 and the mounting base, and the engagement of the gears 422, the telescopic cylinder 426 can maintain a relatively horizontal state during operation. This allows the two adjusting plates 421 on both sides to rotate and adjust around the two connecting shafts 411, thereby simulating the state of tearing the corners of the cut cross section outward. Furthermore, by controlling the height of the lifting seat 423, the adhesion roller 435 can be adjusted to a position that contacts the cut section.

[0029] Adjustment assembly 43 includes a first rotating component 431, a second rotating component 432, a third connecting shaft 434, and an adhesion roller 435; Rotating component 1 431 and rotating component 2 432 are both fixedly connected by a shaft between their end sidewalls with connecting rings. A pull rope pulled out from the rope release ring 413 is connected to the connecting ring, and the end sidewalls of rotating component 1 431 and rotating component 2 432 slide in contact with each other. Rotating rings are provided on both sides of rotating component 1 431 and rotating component 2 432. Rotating component 1 431 and rotating component 2 432 are connected synchronously to two rotating components in contact with them by a key shaft 433. The key shaft 433 is fixed on the sidewalls of rotating component 1 431 and rotating component 2 432, and the rotating rings are reset and adjusted with the limiting ring 425 by a torsion spring 1 (the torsion spring 1 is set in the limiting ring 425 at the position in contact with the rotating ring, not shown in the figure).

[0030] Both rotating component 1 431 and rotating component 2 432 have bottom grooves 2. An adhesion roller 435 is fixedly installed between the inner walls of the bottom grooves 2 via a shaft connection. A clamping flap 436 is provided above the adhesion roller 435. The top of the clamping flap 436 is rotatably set between the inner walls of the bottom grooves 2 via a shaft connection (a reset torsion spring 2 is also provided at the shaft connection position with the inner wall of the bottom grooves 2, not shown in the figure). Electric push rods 2 are installed on the vertical side walls near the bottom of both rotating component 1 431 and rotating component 2 432. A strip-shaped actuating component 437 is connected to the movable end of the electric push rod 2. The bottom end of the actuating component 437 presses against the outer surface of the clamping flap 436.

[0031] Among them, the bent portions of rotating component 1 431 and rotating component 2 432 are always in rotational contact with connecting shaft 2 424.

[0032] It should be further explained that by adjusting the height of the lifting seat 423, the adhesion roller 435 can contact and adhere to the cross-shaped area cut on the outer trim panel. Then, by activating the electric push rod 2, the actuating member 437 moves downward and actuates the clamping flap 436, causing the clamping flap 436 to rotate around its axis, moving its end from below the corner of the adhered cross-shaped area to a position contacting the adhesion roller 435, thus firmly clamping the adhered corner portion. Afterwards, as the two adjusting plates 421 open, the two connecting shafts 4... 24 Synchronously drive rotating component 1 431 and rotating component 2 432 to rotate and adjust, so that the top of rotating component 1 431 and rotating component 2 432 pulls the pull rope outward through the connecting ring. At the same time, the adhesive roller 435 and clamping petal 436 at the bottom drive the stuck corner to open outward. When the corner is torn off during the outward opening process, the remaining part of the corner that is not torn off will exert a reverse force on the adhesive roller 435 and clamping petal 436 during the opening process, which will cause the torsion spring 2 to produce a slight rotational change. When it is torn off, the torsion spring 2 will immediately return to its original position.

[0033] Feedback component 44 includes motor base 441, rotating frame 442, lifting base 443, and connecting shaft 444; Two sets of motor mounts 441 (motor 7, not shown in the figure) are fixedly installed on the opposite side walls of the fixed frame 41. An "L"-shaped rotating frame 442 is rotatably connected to one side of the motor mount 441 via a shaft. A side groove 3 is opened on the vertical side wall of the rotating frame 442. A vertical shaft is fixed in the side groove 3, and a pressure sensor 445 is embedded at the top of the side groove 3. A lifting seat 443 is slidably installed on the vertical shaft. A spring is also sleeved on the vertical shaft above the lifting seat 443. The top of the spring acts on the pressure sensor 445. A lightweight connecting shaft 444 is also connected between the two opposite lifting seats 443.

[0034] It should be further explained that when the moving structure 2 has not moved to the position below the detection structure 4, the motor 7 in the motor base 441 drives the rotating frame 442 to rotate to the horizontal direction. After the moving structure 2 moves to the position below the detection structure 4, it is then adjusted to the vertical direction as shown in the figure. During the adjustment from the horizontal direction to the vertical direction, since the cut part on the outer trim panel is located in the middle position, the connecting shaft 444 needs to be continuously and elastically adjusted against the curvature of the outer surface of the outer trim panel during the rotation of the connecting shaft 444 until the rotating frame 442 is adjusted to the vertical direction, and under the action of the spring, the connecting shaft 444 falls on the cut part on the outer trim panel. At this time, the connecting shaft 444 is positioned... On one side of the contact position between the adhesion roller 435 and the cut area, and with the position of the connecting shaft 444 not affecting the rotation trajectory of the adhesion roller 435, as the corner part is driven to be lifted outward, the part attached to the corner will act on the connecting shaft 444. The connecting shaft 444 continuously applies force to the spring as the degree of outward lifting, thereby causing the value on the pressure sensor 445 to continuously increase. When the part attached to the corner is torn off, there is no external force affecting the connecting shaft 444. The spring applies a reaction force to push it downward, and the value on the pressure sensor 445 begins to decrease. The system records the instantaneous value of the pressure sensor 445 changing from large to small in each test as a reference value for the adhesion force.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection, the internal communication between two components, or the interaction between two components. Those skilled in the art can understand the meaning of the above terms in this application according to the specific circumstances.

[0036] The above provides a detailed description of an auxiliary testing system for automobile exterior panel production provided by the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An auxiliary detection system for automobile exterior panel production, comprising: a workbench (1) provided with a PLC controller (11) and a boss (12); characterized in that it further comprises: a moving structure (2) slidingly adjusted along the length direction of the boss (12) and provided with a plurality of top balls (241) moving along an arc-shaped track and two baffle plates (221) horizontally adjusted; a scribing structure (3) arranged between the side walls of the workbench (1) and provided at the bottom with a cutting member (351) rotatably adjusted, which can scribe in a "cross" shaped track; a detection structure (4) arranged on one side of the scribing structure (3) and also between the side walls of the workbench (1), and provided at both sides with swing assemblies (42), between which an adjusting assembly (43) is arranged, the bottom of which is provided with an adhesive roller (435), and on both sides of the adjusting assembly (43) are further provided with feedback assemblies (44).

2. The auxiliary detection system for the production of automotive exterior panels according to claim 1, characterized in that, The moving structure (2) comprises a base (21), a moving plate (22), an adjusting plate one (23) and an arc-shaped strip (24), the base (21) is slidingly arranged along the top surface of the boss (12), and the bottom walls of the base (21) are provided with limiting strips (211) on both sides, and a sensor (25) is further arranged at the middle position of one of the limiting strips (211), two moving plates (22) in relative motion are elastically arranged along the length direction between the inner walls of the base (21), the baffle plates (221) are fixed on the moving plates (22), two adjusting plates one (23) are rotatably arranged on the other two side walls of the base (21), one side of the adjusting plate one (23) is rotatably provided with the arc-shaped strip (24) through an adjusting arm (231), and the top balls (241) are elastically arranged on the end of the arc-shaped strip (24).

3. The auxiliary detection system for the production of exterior automotive panels according to claim 1, characterized in that, The scribing structure (3) comprises a fixed frame one (31), an adjusting petal one (32) and an adjusting petal two (33), the fixed frame one (31) is in a "U" shaped structure and its two bottom ends are fixedly connected with the side walls of the workbench (1), and two supports one (311) and two supports two (312) are further arranged on the fixed frame one (31), the adjusting petal one (32) is rotatably arranged between the two supports one (311) through shaft connection, the adjusting petal two (33) is rotatably arranged between the two supports two (312) through shaft connection, the adjusting petal one (32) is rotatably arranged above the adjusting petal two (33), and an electric push rod one (344) is arranged on one side wall of the adjusting petal one (32) and the adjusting petal two (33). The emitter one (313) is embedded on one vertical side wall of the fixing frame one (31), and when the emitter one (313) is arranged opposite to the inductor (25), the center position of the moving structure (2) is just below the fixing frame one (31).

4. The auxiliary detection system for the production of automotive exterior panels according to claim 3, characterized in that, The movable assembly (34) is arranged between the adjusting flap one (32) and the adjusting flap two (33), and comprises an upper sliding plate (341) and a lower sliding plate (342). The upper sliding plate (341) slides on the upper arc surface of the adjusting flap one (32), and the lower sliding plate (342) slides along the lower arc surface of the adjusting flap two (33) for adjustment. Positioning seats (345) are arranged on the side walls of the upper sliding plate (341) and the lower sliding plate (342), and the push rod end of the electric push rod one (344) is fixed to the positioning seats (345) by insertion. A synchronous shaft (343) is arranged between the upper sliding plate (341) and the lower sliding plate (342), and a piston shaft (35) elastically slides below the synchronous shaft (343). The driving part (351) is rotationally arranged on the bottom end of the piston shaft (35).

5. The auxiliary detection system for the production of exterior automotive panels according to claim 1, characterized in that, The detection structure (4) comprises a fixing frame two (41) which is fixedly arranged between the side walls of the workbench (1) in the vertical direction. Two rope rings (413) are arranged below the upper bottom wall of the fixing frame two (41), two connecting shafts one (411) are rotationally arranged between the side walls of the fixing frame two (41), the connecting shafts one (411) penetrate the rope rings (413) and rotationally contact the rope rings (413), and an emitter two (412) is embedded on one vertical side wall of the fixing frame two (41). When the emitter two (412) is arranged opposite to the inductor (25), the center position of the moving structure (2) is just below the fixing frame two (41).

6. The auxiliary detection system for the production of automotive exterior panels according to claim 5, characterized in that, The swinging assembly (42) comprises an adjusting plate two (421), a gear (422), a connecting shaft two (424) and a telescopic cylinder (426). The adjusting plate two (421) and the gear (422) are installed at the end of the connecting shaft one (411) and synchronously rotate. The gears (422) on the same side are meshed with each other, and the connecting shaft two (424) is adjusted up and down between the adjusting plate two (421) on the opposite sides. The telescopic cylinder (426) is arranged between the side walls of the two adjusting plate two (421) on the same side and always keeps horizontal. Limiting rings (425) are arranged on both sides of the middle position of the connecting shaft two (424).

7. The auxiliary detection system for the production of automotive exterior panels according to claim 6, characterized in that, The adjusting assembly (43) comprises rotating part one (431) and rotating part two (432), rotating part one (431) and rotating part two (432) are respectively arranged on the connecting shaft two (424) on both sides, and both sides of rotating part one (431) and rotating part two (432) are provided with rotating rings, the rotating rings are arranged on one side of the limiting ring (425) and a torsional spring one is arranged between the rotating rings, a connecting ring is arranged between the top end side wall of rotating part one (431) and rotating part two (432) through shaft connection, the connecting ring is connected with the rope releasing ring (413) through a pull rope; A bottom groove two is formed on the bottom end of rotating part one (431) and rotating part two (432), the adhering roller (435) is installed between the inner walls of the bottom groove two through shaft connection, a clamping piece (436) is arranged between the inner walls of the bottom groove two through shaft connection, the clamping piece (436) is arranged above the adhering roller (435) in a rotating mode, and a torsional spring two is arranged at the shaft rotating connection position of the clamping piece (436).

8. The auxiliary detection system for the production of automotive exterior panels according to claim 7, characterized in that, The feedback assembly (44) comprises motor seats (441), rotating frames (442), connecting shafts four (444) and pressure sensors (445), the motor seats (441) are arranged on the side walls of the fixed frame two (41) and two are symmetrically arranged, the rotating frames (442) are arranged in an "L" type structure, one end of the rotating frame (442) is arranged on one side of the motor seat (441) in a rotating mode through shaft connection, the connecting shaft four (444) is arranged between the rotating frames (442) on both sides, both ends of the connecting shaft four (444) are connected with the lifting seats two (443) sliding in the rotating frames (442), and the pressure sensor (445) is embedded in the vertical inner wall of the rotating frame (442), and a spring is arranged between the pressure sensor (445) and the lifting seat two (443).

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