A stamping crack detection device for automobile surface-covered sheet metal parts

Abstract

The present invention belongs to the field of sheet metal inspection equipment and discloses a stamping crack inspection device for automobile surface covering sheet metal parts. The device utilizes a multi-width conveyor belt mechanism to replace the existing integral belt conveyor belt, and each conveyor belt mechanism is provided with a support plate mechanism and a support bar mechanism. The automobile surface covering sheet metal parts are lifted onto the belt conveyor belt by using the silicone support plates of the support plate mechanism and then conveyed. Moreover, when the support plate mechanism on each conveyor belt mechanism contacts and lifts the automobile surface covering sheet metal parts, the lifting force of the silicone support plates can be adjusted individually, so that the automobile surface covering sheet metal parts are placed in a relatively horizontal posture on the conveyor rack and then conveyed to the bottom of the blue light three-dimensional scanner in a relatively horizontal posture for scanning, thereby reducing scanning errors and the stability of the conveying process of the automobile surface covering sheet metal parts.

Description

Technical Field

[0001] The present invention relates to the field of sheet metal part detection equipment, and more particularly to a stamping crack detection device for sheet metal parts covered on automobile surfaces. Background Art

[0002] The sheet metal covering an automobile's surface, such as the hood, fenders, and door panels, is an important component of the vehicle's appearance and structure. Its quality directly impacts the vehicle's safety, aesthetics, and overall performance. In the automotive manufacturing process, the stamping process is a key step in producing sheet metal parts. The stamping process is affected by the ductility of the metal sheet and the uniformity of the stamping force. If not properly controlled, cracks can easily form on the sheet metal after stamping. If these cracks are not detected in a timely manner, they not only affect the aesthetics of the paint finish, but can also easily expand and affect the structural strength of the vehicle body. Therefore, crack detection of stamped automobile sheet metal parts is particularly important.

[0003] Therefore, with the rapid development of the automotive industry, higher requirements are being placed on the accuracy, efficiency, and degree of automation of stamping crack detection on sheet metal parts. Against this background, a stamping crack detection device based on a conveyor belt mechanism and a blue light 3D scanner has emerged. The conveyor belt mechanism enables continuous and automated transportation of sheet metal parts, greatly improving detection efficiency and meeting the pace of large-scale automobile production. The blue light 3D scanner uses the interference principle of blue light to quickly and accurately acquire three-dimensional data from the surface of sheet metal parts. By analyzing and processing this data, it can accurately identify the location, shape, size, and other information of stamping cracks. It can not only detect tiny cracks that are difficult to detect with the naked eye, but also perform quantitative analysis of cracks, providing an accurate basis for subsequent quality improvements.

[0004] Although the existing stamping crack detection device based on a conveyor belt mechanism and a blue light 3D scanner has many advantages in use, its conveyor belt mechanism structure is relatively simple, and most of them are conveyor belt mechanisms in the form of a conveyor belt and a conveyor roller. When a metal sheet metal part with a concave-convex surface is placed on the conveyor belt for transportation, it is difficult to ensure that the metal sheet metal part is transported to the bottom of the blue light 3D scanner for scanning in a relatively horizontal posture. It can only be transported to the bottom of the blue light 3D scanner for scanning in a skewed posture, which is not conducive to the stable transportation of the metal sheet metal part with a concave-convex surface on the conveyor belt. The metal sheet metal part transported in a skewed posture is also likely to increase the error of the scanning result when it arrives at the bottom of the blue light 3D scanner for scanning. Therefore, we propose a stamping crack detection device for sheet metal parts covered on the surface of an automobile to solve the above-mentioned problems. Summary of the Invention

[0005] In response to the problems existing in the prior art, the purpose of the present invention is to provide a stamping crack detection device for automobile surface covering sheet metal parts, which improves the existing stamping crack detection device based on a conveyor belt mechanism and a blue light three-dimensional scanner, and uses a multi-width conveyor belt mechanism to replace the existing integral belt conveyor belt, and each conveyor belt mechanism is provided with a support plate mechanism and a support bar mechanism, and the silicone support plate of the support plate mechanism is used to lift the automobile surface covering sheet metal parts on the belt conveyor belt and then transport them, and when the support plate mechanism on each conveyor belt mechanism contacts and lifts the automobile surface covering sheet metal parts, the lifting force of the silicone support plate can be adjusted individually, so that the automobile surface covering sheet metal parts are placed in a relatively horizontal posture on the conveyor rack, and then conveyed to the bottom of the blue light three-dimensional scanner in a relatively horizontal posture for scanning, thereby reducing the scanning error and the stability of the transportation process of the automobile surface covering sheet metal parts.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A stamping crack detection device for sheet metal parts covered on the surface of an automobile comprises a conveyor frame, wherein the conveyor frame is provided with at least four conveyor belt mechanisms inside, wherein the conveyor belt mechanisms include a belt conveyor belt and belt rollers sleeved on both ends of the inner wall of the belt conveyor belt, wherein the belt conveyor belt is provided with a plurality of support plate mechanisms of the same structure, and a support bar mechanism is provided on one side of the top of the belt conveyor belt;

[0008] The support plate mechanism includes a box body fixedly mounted on the outer wall of the belt conveyor belt by a group of rivets, the top of the box body is fixedly connected to a group of ear seats, and the top of the box body located between the group of ear seats is provided with an opening, a silicone support plate is rotatably connected between the group of ear seats by a rotating shaft, and the top and bottom of the silicone support plate are respectively provided with an arc-shaped lifting section and an arc-shaped contact section, an extrusion plate 1 and an extrusion plate 2 are provided inside the box body, the extrusion plate 1 and the extrusion plate 2 are fixedly connected by a number of supporting springs 1, one side of the extrusion plate 2 is in contact with the arc-shaped contact section, the top and bottom of the extrusion plate 1 and the extrusion plate 2 are fixedly connected to a group of connecting piles, and the top and bottom of the box body corresponding to the position of the connecting piles are provided with a group of travel grooves, and the top and bottom of the extrusion plate 1 and the extrusion plate 2 are slidably connected inside the box body through the connecting piles and the corresponding travel grooves.

[0009] Furthermore, side panels are fixedly installed on both sides of the outer wall of the box body, and sockets are provided on the two side panels, and the two sockets are slidably connected by a push rod, and a triangular contact plate 1 is fixedly connected to one side of the outer wall of the push rod between the two side panels, and a contact plate 2 is fixedly connected to one side of the extrusion plate 1, and the triangular contact plate 1 is in contact with one side of the edge of the contact plate 2. A ball head seat is fixedly installed at one end of the push rod, and an anti-slip end is fixedly installed at the other end of the push rod. A compression spring is sleeved on the outer side of the push rod located on one side of the ball head seat, and a group of positioning piles are fixedly welded on the outer wall of the push rod, and both ends of the compression spring are respectively in contact with a group of positioning piles and the corresponding outer sides of the sockets.

[0010] Furthermore, the support bar mechanism includes a dynamic support bar arranged on one side of the top of the belt conveyor, and the two ends of the dynamic support bar are provided with outward-expanded arc sections, and one end of the push rod on several of the support plate mechanisms contacts one side of the dynamic support bar through the ball head seat.

[0011] Furthermore, a fixed support bar is provided on one side of the dynamic support bar, and a plurality of bolt holes are opened on the fixed support bar, and screws are sleeved inside the plurality of bolt holes. One end of the screw is fixedly welded to one side of the dynamic support bar, and the other end of the screw is threadedly connected to an adjusting nut, and a support spring 2 is sleeved on the outside of the screw located between the dynamic support bar and the fixed support bar.

[0012] Furthermore, the two ends of the fixed support bars on the plurality of support bar mechanisms are fixedly welded via welding brackets, and the two ends of the welding brackets are fixedly welded to both sides of the conveying frame.

[0013] Furthermore, the belt rollers, which are not less than four in number and located on the same side of the conveyor frame, are fixedly installed through a drive shaft, and the ends of the two drive shafts are rotatably connected to an axle seat, and the axle seat is fixedly installed on the inner wall of the conveyor frame, and one of the drive shaft ends passes through the outside of the conveyor frame, and a sprocket 1 is fixedly installed on the end of the drive shaft, and a sprocket 2 is provided on one side of the sprocket 1, and the sprocket 1 and the sprocket 2 are connected by a chain, and the sprocket 1, the sprocket 2 and the outer side of the chain are socketed by a protective cover, and the protective cover is fixedly installed on one side of the outer wall of the conveyor frame, and a drive motor is fixedly installed on the outer side of the protective cover corresponding to the position of the sprocket 2, the power shaft on one side of the drive motor passes through the inside of the protective cover, and the power shaft end on one side of the drive motor is fixedly installed inside the sprocket 2.

[0014] Furthermore, a height adjustment bracket is fixedly mounted on the conveying frame via a group of U-shaped brackets, and a blue light three-dimensional scanner is fixedly mounted on the height adjustment bracket.

[0015] Beneficial effects: Compared with the prior art, the advantages of the present invention are:

[0016] (1) This solution improves the existing stamping crack detection device based on a conveyor belt mechanism and a blue light three-dimensional scanner, and uses a multi-frame conveyor belt mechanism to replace the existing integral belt conveyor belt. Each conveyor belt mechanism is provided with a support plate mechanism and a support bar mechanism. The silicone support plate of the support plate mechanism is used to lift the sheet metal parts covered on the automobile surface onto the belt conveyor belt and then transport them. When the support plate mechanism on each conveyor belt mechanism contacts and lifts the sheet metal parts covered on the automobile surface, the lifting force of the silicone support plate can be adjusted individually, so that when the support plate mechanism is in a convex or concave shape at the bottom of the lift, the support plate can be adjusted to prevent the sheet metal parts from being convex or concave. When the automobile surface is covered with sheet metal parts, the lifting force of the silicone support plate at the corresponding raised or recessed position can be adjusted to a smaller or larger value, and the lifting force of the silicone support plate outside the raised position can be adjusted to a larger or smaller value, so that when the automobile surface covered sheet metal parts are placed on the conveyor rack, the silicone support plates at the corresponding raised or recessed positions can automatically deflect downward to avoid or push up, so that the automobile surface covered sheet metal parts are placed on the conveyor rack in a relatively horizontal posture, and then conveyed to the bottom of the blue light 3D scanner for scanning in a relatively horizontal posture, thereby reducing scanning errors and the stability of the conveying process of the automobile surface covered sheet metal parts;

[0017] (2) This solution, through the structural design of a support bar mechanism provided on one side of the top of each belt conveyor, facilitates the adjustment of the silicone support strength of the support mechanism on the top of each belt conveyor, thereby making it more convenient to adjust the support mechanism installed on at least four conveyor belt mechanisms, and more convenient to adjust according to the external structure of the bottom contact of the sheet metal covering the surface of the car, and is more adaptable and more in line with the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of the middle part of the area;

[0020] Figure 3 This is a schematic diagram of the internal disassembly structure of the conveyor frame of the present invention;

[0021] Figure 4 For the present invention Figure 3 A in the middle is an enlarged structural diagram;

[0022] Figure 5 It is a schematic diagram of the distribution of the conveyor belt mechanism, the support plate mechanism and the support bar mechanism of the present invention;

[0023] Figure 6This is a schematic diagram of the separation of the conveyor belt mechanism and the support bar mechanism of the present invention;

[0024] Figure 7 This is a schematic diagram of the mounting structure of the support mechanism of the present invention;

[0025] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle;

[0026] Figure 9 It is a structural schematic diagram of the support plate mechanism of the present invention;

[0027] Figure 10 This is a schematic diagram of the disassembled structure of the support plate mechanism of the present invention;

[0028] Figure 11 Schematic diagram of the push rod structure of the present invention;

[0029] Figure 12 This is a schematic structural diagram of the other side of the extruded plate of the present invention;

[0030] Figure 13 This is a schematic structural diagram of the support bar mechanism of the present invention;

[0031] Figure 14 It is a schematic diagram of the partial regional structure of the support bar mechanism of the present invention.

[0032] Description of the numbers in the figure:

[0033] 1. Conveyor frame; 2. Drive shaft; 3. Sprocket 1; 4. Sprocket 2; 5. Protective cover; 6. Drive motor;

[0034] 7. U-shaped bracket; 8. Height adjustment bracket; 9. Blue light 3D scanner;

[0035] 10. Conveyor belt mechanism; 1001. Belt conveyor belt; 1002. Belt roller;

[0036] 11. Support plate mechanism; 12. Box body; 1201. Opening; 1202. Travel groove; 13. Rotating shaft; 14. Silicone support plate; 1401. Arc-shaped lifting section; 1402. Arc-shaped contact section; 15. Extrusion plate 1; 1501. Connecting post; 1502. Contact plate 2; 16. Extrusion plate 2; 17. Support spring 1; 18. Side plate; 1801. Jack; 19. Push rod; 1901. Triangular contact plate 1; 1902. Positioning post; 1903. Compression spring; 1904. Ball seat;

[0037] 20. Support bar mechanism; 21. Dynamic support bar; 2101. Outwardly expanding arc segment; 22. Fixed support bar; 23. Screw; 2301. Adjusting nut; 24. Support spring 2;

[0038] 25. Welding bracket. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the specification of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] Example 1: Please refer to Figures 1-4 A stamping crack detection device for sheet metal parts covered on the surface of an automobile includes a conveyor frame 1, a height adjustment bracket 8 is fixedly mounted on the conveyor frame 1 through a set of U-shaped brackets 7, and a blue light three-dimensional scanner 9 is fixedly mounted on the height adjustment bracket 8. The conveyor frame 1 is provided with a number of not less than four conveyor belt mechanisms 10, the conveyor belt mechanism 10 includes a belt conveyor belt 1001 and belt rollers 1002 sleeved on both ends of the inner wall of the belt conveyor belt 1001, a plurality of support plate mechanisms 11 with the same structure are provided on the belt conveyor belt 1001, and a support bar mechanism 20 is provided on one side of the top of the belt conveyor belt 1001;

[0041] No less than four belt rollers 1002 located on the same side of the conveyor frame 1 are fixedly installed through the drive shaft 2, and the ends of the two drive shafts 2 are rotatably connected to the shaft seat, and the shaft seat is fixedly installed on the inner wall of the conveyor frame 1. One end of the drive shaft 2 passes through the outside of the conveyor frame 1, and a sprocket 3 is fixedly installed on the end of the drive shaft 2, and a sprocket 2 4 is provided on one side of the sprocket 1 3. The sprocket 1 3 and the sprocket 2 4 are connected by a chain, and the sprocket 1 3, the sprocket 2 4 and the outside of the chain are connected by a protective cover 5, and the protective cover 5 is fixedly installed on one side of the outer wall of the conveyor frame 1, and a drive motor 6 is fixedly installed on the outside of the protective cover 5 corresponding to the position of the sprocket 2 4. The power shaft on one side of the drive motor 6 passes through the inside of the protective cover 5, and the end of the power shaft on one side of the drive motor 6 is fixedly installed inside the inside of the sprocket 2 4.

[0042] The driving principle of the belt conveyor of this type of stamping crack detection device for automobile surface covered sheet metal parts is:

[0043] First, the power shaft sprocket 2 4 on one side of the driving motor 6 is rotated, and then the sprocket 1 3 is driven to rotate through the connection of the chain, thereby driving one of the driving shafts 2 installed on the sprocket 1 3 to rotate, and then through the support of the belt roller 1002 and the connection of the belt conveyor 1001 between the corresponding two belt rollers 1002, it can drive several belt conveyor belts 1001 to start synchronously, and the sheet metal parts covering the surface of the car placed on the belt conveyor belt 1001 are continuously transported to the bottom of the blue light 3D scanner 9, and then scanned by the blue scanning light emitted by the blue light 3D scanner 9.

[0044] Example 2: In view of the above example 1, further description is given, see Figure 5-Figure 12 The support plate mechanism 11 includes a box body 12 fixedly mounted on the outer wall of the belt conveyor 1001 by a group of rivets, a group of ear seats are fixedly connected to the top of the box body 12, and an opening 1201 is opened on the top of the box body 12 between the group of ear seats, a silicone support plate 14 is rotatably connected between the group of ear seats through a rotating shaft 13, and the top and bottom of the silicone support plate 14 are respectively provided with an arc-shaped holding section 1401 and an arc-shaped contact section 1402, an extrusion plate 15 and an extrusion plate 2 16 are provided inside the box body 12, and an extrusion plate 1 15 and the extrusion plate 2 16 are fixedly connected by a plurality of support springs 17. One side of the extrusion plate 2 16 contacts the arc-shaped contact section 1402. A group of connecting piles 1501 are fixedly connected to the top and bottom of the extrusion plate 15 and the extrusion plate 2 16. A group of travel grooves 1202 are opened on the top and bottom of the box body 12 at the corresponding positions of the connecting piles 1501. The top and bottom of the extrusion plate 15 and the extrusion plate 2 16 are slidably connected inside the box body 12 through the connecting piles 1501 and the corresponding travel grooves 1202.

[0045] Side panels 18 are also fixedly installed on both sides of the outer wall of the box body 12. Sockets 1801 are provided on the two side panels 18, and the two sockets 1801 are slidably connected by a push rod 19. A triangular contact plate 1901 is fixedly connected to one side of the outer wall of the push rod 19 located between the two side panels 18, and a contact plate 2 1502 is fixedly connected to one side of the extrusion plate 15. The triangular contact plate 1901 and the edge of the contact plate 2 1502 are in contact with each other. A ball head seat 1904 is fixedly installed at one end of the push rod 19, and an anti-slip end is fixedly installed at the other end of the push rod 19. A compression spring 1903 is sleeved on the outer side of the push rod 19 located on the side of the ball head seat 1904, and a group of positioning piles 1902 are fixedly welded on the outer wall of the push rod 19. The two ends of the compression spring 1903 are respectively in contact with a group of positioning piles 1902 and the outer sides of the corresponding sockets 1801.

[0046] The support mechanism of the stamping crack detection device for automobile surface covered sheet metal parts has the following requirements for adjusting the lifting force of the silicone support plate:

[0047] When the automobile surface covering sheet metal is placed on the belt conveyor 1001 and contacts the support plate mechanism 11 at the corresponding area, if the surface of the automobile surface covering sheet metal at the contact part is in a convex state, it is necessary to reduce the lifting force of the silicone support plate 14 at that place, so that the arc-shaped lifting section 1401 of the silicone support plate 14 at that place can be easily deflected downward to avoid the convex part of the surface of the automobile surface covering sheet metal, and the lifting force of the silicone support plate 14 at the other peripheral parts is increased, so that the automobile surface covering sheet metal can be relatively The car body is placed in a horizontal posture on the belt conveyor 1001; on the contrary, if the surface of the car body covering sheet metal at the contact part is in a concave state, it is necessary to increase the lifting force of the silicone support plate 14 at that place, so that the arc-shaped lifting section 1401 of the silicone support plate 14 at that place is not easily deflected downward, and is supported on the concave part of the surface of the car body covering sheet metal, and the lifting force of the silicone support plate 14 at other peripheral parts is lowered, so that the car body covering sheet metal can be placed on the belt conveyor 1001 in a relatively horizontal posture.

[0048] The supporting mechanism of the stamping crack detection device for automobile surface covered sheet metal parts has a silicone supporting plate lifting force adjustment principle as follows:

[0049] Based on the above, when it is necessary to lower the lifting force of the silicone support plate 14, the push rod 19 of the support plate mechanism 11 is first moved toward the side of the ball head seat 1904. At this time, the triangular contact plate 1901 located inside the box body 12 also moves toward the side of the ball head seat 1904. Then, under the influence of the hypotenuse shape structure of the triangular contact plate 1901, the extrusion feed amount of the contact plate 2 1502 is reduced, thereby reducing the supporting force of the extrusion plate 15. At this time, the support force of the extrusion plate 2 16 is reduced by the connection of the plurality of support springs 17, thereby reducing the supporting force of the arc-shaped contact section 1402 of the silicone support plate 14, thereby achieving the effect of reducing the supporting force of the arc-shaped lifting section 1401 at the top of the silicone support plate 14 and making it easy for the arc-shaped lifting section 1401 to deflect downward, so that the silicone support plate 14 can avoid the surface protrusions of the sheet metal covered on the surface of the automobile, so that the sheet metal covered on the surface of the automobile can be placed on the top of the belt conveyor 1001 in a horizontal posture;

[0050] On the contrary, when it is necessary to increase the lifting force of the silicone support plate 14, the push rod 19 of the support plate mechanism 11 is first moved to the side opposite to the ball head seat 1904. At this time, the triangular contact plate 1901 located inside the box body 12 also moves to the side opposite to the ball head seat 1904. Then, under the influence of the hypotenuse shape structure of the triangular contact plate 1901, the extrusion feed amount of the contact plate 2 1502 is increased, thereby increasing the supporting force of the extrusion plate 15. At this time, the supporting force of the extrusion plate 2 16 is increased through the connection of several supporting springs 17, thereby increasing the supporting force of the arc-shaped contact section 1402 of the silicone support plate 14, thereby achieving the effect of increasing the supporting force of the arc-shaped lifting section 1401 at the top of the silicone support plate 14 and making it difficult for the arc-shaped lifting section 1401 to deflect downward, so that the silicone support plate 14 can be supported according to the surface depression of the sheet metal covered on the surface of the automobile, so that the sheet metal covered on the surface of the automobile can be placed on the top of the belt conveyor 1001 in a horizontal posture.

[0051] Example 3: In view of the above examples 1 and 2, for further description, refer to Figure 1 、 Figure 2 、 Figure 13 as well as Figure 14 The support bar mechanism 20 includes a dynamic support bar 21 arranged on one side of the top of the belt conveyor 1001, and an outward-expanded arc section 2101 is provided at both ends of the dynamic support bar 21, and one end of the push rod 19 on several support plate mechanisms 11 contacts one side of the dynamic support bar 21 through the ball head seat 1904, and a fixed support bar 22 is provided on one side of the dynamic support bar 21. Several bolt holes are opened on the fixed support bar 22, and screws 23 are sleeved inside the several bolt holes. One end of the screw 23 is fixedly welded to one side of the dynamic support bar 21, and the other end of the screw 23 is threadedly connected with an adjusting nut 2301, and a support spring 24 is sleeved on the outside of the screw 23 located between the dynamic support bar 21 and the fixed support bar 22. The two ends of the fixed support bars 22 on several support bar mechanisms 20 are fixedly welded by welding brackets 25, and the two ends of the welding brackets 25 are fixedly welded to both sides of the conveying frame 1.

[0052] The support and adjustment principle of the support bar mechanism on the push rod of this stamping crack detection device for automobile surface covered sheet metal parts is as follows:

[0053] Based on the above, when it is necessary to lower the lifting force of the silicone support plate 14, the several adjusting nuts 2301 on the corresponding support bar mechanism 20 are rotated to reduce the distance between the dynamic support bar 21 and the fixed support bar 22. At this time, the push rod 19, supported by the compression spring 1903, makes the ball head seat 1904 close to the dynamic support bar 21, and makes the ball head seat 1904, the push rod 19 and the triangular contact plate 1901 move toward the side of the ball head seat 1904, so as to achieve the effect of moving the push rod 19 of the support plate mechanism 11 toward the side of the ball head seat 1904;

[0054] On the contrary, when it is necessary to increase the lifting force of the silicone support plate 14, the several adjusting nuts 2301 on the corresponding support bar mechanism 20 are rotated in reverse to increase the distance between the dynamic support bar 21 and the fixed support bar 22. At this time, the push rod 19 compresses the compression spring 1903, and the ball head seat 1904 is close to the dynamic support bar 21, and the ball head seat 1904, the push rod 19 and the triangular contact plate 1901 move toward the opposite side of the ball head seat 1904, so as to achieve the effect of moving the push rod 19 of the support plate mechanism 11 toward the opposite side of the ball head seat 1904.

[0055] Through the structural design that a support bar mechanism 20 is provided on one side of the top of each belt conveyor 1001, it is convenient to adjust the supporting strength of the silicone support plate 14 of the support plate mechanism 11 on the top of each belt conveyor 1001, thereby making it more convenient to adjust the support plate mechanism 11 installed on no less than 4 conveyor belt mechanisms 10, and making it more convenient to adjust according to the outer shape structure of the bottom contact of the sheet metal covering the surface of the automobile, which is more adaptable and more in line with the use requirements. The structural design of the outward-expanded arc sections 2101 at both ends of the dynamic support bar 21 makes it convenient for the support plate mechanism 11 to rotate with the belt conveyor 1001, so that the ball head seat 1904 at the end of the push rod 19 can slide smoothly into the side of the dynamic support bar 21, thereby avoiding interference between the ball head seat 1904 at the end of the push rod 19 and the dynamic support bar 21 when the support plate mechanism 11 rotates with the belt conveyor 1001.

[0056] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A stamping crack detection device for automobile surface-covered sheet metal parts, comprising a conveyor frame (1), characterized in that: The conveyor frame (1) is provided with at least four conveyor belt mechanisms (10) therein, the conveyor belt mechanism (10) comprising a belt conveyor belt (1001) and belt rollers (1002) sleeved on both ends of the inner wall of the belt conveyor belt (1001), the belt conveyor belt (1001) is provided with a plurality of support plate mechanisms (11) of the same structure, and a support bar mechanism (20) is provided on one side of the top of the belt conveyor belt (1001); The support plate mechanism (11) comprises a box body (12) fixedly mounted on the outer wall of the belt conveyor (1001) by a group of rivets, a group of ear seats being fixedly connected to the top of the box body (12), and an opening (1201) being provided on the top of the box body (12) located between the group of ear seats, a silicone support plate (14) being rotatably connected between the group of ear seats by a rotating shaft (13), and an arc-shaped lifting section (1401) and an arc-shaped contact section (1402) being provided on the top and bottom of the silicone support plate (14), respectively, an extrusion plate 1 (15) and an extrusion plate 2 (16) being provided inside the box body (12), and the extrusion plate 1 (15) and the extrusion plate 2 (16) are respectively provided. The two pressing plates (16) are fixedly connected by a plurality of supporting springs (17), one side of the extrusion plate (16) contacts the arc-shaped contact section (1402), the top and bottom of the extrusion plate (15) and the extrusion plate (16) are fixedly connected with a group of connecting piles (1501), and the top and bottom of the box body (12) corresponding to the position of the connecting piles (1501) are provided with a group of travel grooves (1202), and the top and bottom of the extrusion plate (15) and the extrusion plate (16) are slidably connected inside the box body (12) through the connecting piles (1501) and the corresponding travel grooves (1202).

2. The device for detecting stamping cracks on automobile surface-covered sheet metal parts according to claim 1, characterized in that: Side plates (18) are fixedly mounted on both sides of the outer wall of the box body (12), and the two side plates (18) are provided with sockets (1801), and the two sockets (1801) are slidably connected via a push rod (19), and a triangular contact plate 1 (1901) is fixedly connected to one side of the outer wall of the push rod (19) located between the two side plates (18), and a contact plate 2 (1502) is fixedly connected to one side of the extrusion plate 1 (15), and the triangular contact plate 1 (1901) and the contact plate 2 (1502) are fixedly connected to each other. ) is in contact with one side of the edge, one end of the push rod (19) is fixedly mounted with a ball head seat (1904), and the other end of the push rod (19) is fixedly mounted with an anti-slip end head, and a compression spring (1903) is sleeved on the outer side of the push rod (19) located on the side of the ball head seat (1904), and a group of positioning piles (1902) are fixedly welded on the outer wall of the push rod (19), and the two ends of the compression spring (1903) are respectively in contact with a group of positioning piles (1902) and the outer side of the corresponding socket (1801).

3. The device for detecting stamping cracks on automobile surface-covered sheet metal parts according to claim 2, characterized in that: The support bar mechanism (20) includes a dynamic support bar (21) arranged on one side of the top of the belt conveyor (1001), and outward-expanding arc sections (2101) are provided at both ends of the dynamic support bar (21), and one end of the push rod (19) on the plurality of support plate mechanisms (11) contacts one side of the dynamic support bar (21) through the ball head seat (1904).

4. The device for detecting stamping cracks on automobile surface-covered sheet metal parts according to claim 3, characterized in that: A fixed support bar (22) is provided on one side of the dynamic support bar (21), and a plurality of bolt holes are opened on the fixed support bar (22), and screws (23) are sleeved inside the plurality of bolt holes. One end of the screw (23) is fixedly welded to one side of the dynamic support bar (21), and the other end of the screw (23) is threadedly connected to an adjusting nut (2301), and a second support spring (24) is sleeved on the outside of the screw (23) located between the dynamic support bar (21) and the fixed support bar (22).

5. The device for detecting stamping cracks on automobile surface-covered sheet metal parts according to claim 4, characterized in that: The two ends of the fixed support bars (22) on the plurality of support bar mechanisms (20) are fixedly welded via welding brackets (25), and the two ends of the welding brackets (25) are fixedly welded to both sides of the conveying frame (1).

6. The device for detecting stamping cracks on automobile surface-covered sheet metal parts according to claim 1, characterized in that: The belt rollers (1002) of which the number is not less than 4 and located on the same side of the conveying frame (1) are fixedly installed through the drive shaft (2), and the ends of the two drive shafts (2) are rotatably connected to the shaft seat, and the shaft seat is fixedly installed on the inner wall of the conveying frame (1), and one end of the drive shaft (2) passes through the outside of the conveying frame (1), and the end of the drive shaft (2) is fixedly installed with a sprocket 1 (3), and a sprocket 2 (4) is provided on one side of the sprocket 1 (3), and the sprocket 1 (3) and the sprocket 2 (4) are fixedly installed. ) are connected by a chain, the sprocket one (3), the sprocket two (4) and the outer side of the chain are connected by a protective cover (5), and the protective cover (5) is fixedly installed on one side of the outer wall of the conveying frame (1), and a driving motor (6) is fixedly installed on the outer side of the protective cover (5) corresponding to the position of the sprocket two (4), and the power shaft on one side of the driving motor (6) passes through the inside of the protective cover (5), and the end of the power shaft on one side of the driving motor (6) is fixedly installed inside the sprocket two (4).

7. The device for detecting stamping cracks on automobile surface-covered sheet metal parts according to claim 1, characterized in that: A height adjustment bracket (8) is fixedly mounted on the conveying frame (1) via a set of U-shaped brackets (7), and a blue light three-dimensional scanner (9) is fixedly mounted on the height adjustment bracket (8).

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