An automated inspection apparatus for welded frames

Abstract

The utility model discloses a kind of automatic detection equipment of welded frame, including work platform, work platform top is installed with support platform through stand, front support table, rear support table are installed with interval in front and back on the work platform below support platform, OK piece conveying line is installed on the work platform behind rear support table;Support platform bottom is installed with clamping piece through transfer mechanism, and welding frame is transferred between front support table, rear support table, OK piece conveying line by clamping piece clamping;Thread detection mechanism is installed on the work platform below front support table, and visual detection component is laid around rear support table;To be laid by double station, the transfer of combination transfer mechanism is realized, the automatic operation of welding frame from thread detection to visual detection, conveying line, effectively replace manual operation, improve detection efficiency, guarantee detection effect.

Description

Technical Field

[0001] This utility model relates to the technical field of welding component inspection equipment, and in particular to an automated inspection device for a welded frame. Background Technology

[0002] The vehicle's metal welded frame is composed of multiple stamped parts welded together. After welding, it needs to undergo strict testing, using a full product inspection method to ensure the integrity of the welding and smooth subsequent assembly and use.

[0003] In the existing technology, under normal circumstances, the operator will manually observe and check whether there are any missing parts in the welding frame, and a thread gauge will be used to tighten the screws.

[0004] Under the existing inspection methods, manual inspection of a single welded frame takes a long time, and misjudgments can occur due to eye fatigue caused by prolonged observation. This is not only time-consuming and labor-intensive, but also inefficient and poses many safety hazards, with the risk of defective products being released. Utility Model Content

[0005] To address the aforementioned issues, this application provides an automated inspection device for welded frames with a reasonable structure, thereby automating the entire process from thread inspection to visual inspection and conveyor line operation of the welded frames. This effectively replaces manual labor, improves inspection efficiency, and ensures inspection results.

[0006] The technical solution adopted in this utility model is as follows:

[0007] An automated inspection device for welded frames includes a work platform. A support platform is mounted on the top surface of the work platform via columns. A front support and a rear support are installed at intervals on the work platform below the support platform. An OK part conveyor line is installed on the work platform behind the rear support. A clamping component is installed on the bottom surface of the support platform via a transfer mechanism. The clamping component clamps the welded frame and transfers it between the front support, the rear support, and the OK part conveyor line. A thread inspection mechanism is installed on the work platform below the front support, and a vision inspection component is arranged around the rear support.

[0008] As a further improvement to the above technical solution:

[0009] The transfer mechanism includes a translation seat mounted on the bottom surface of the support platform via a translation drive assembly. Two sets of clamping members are installed at intervals on the bottom of the translation seat. The distance between the two sets of clamping members, the distance between the front support and the rear support, and the distance between the rear support and the OK part conveyor line are all equal.

[0010] Lateral limit detection components are installed on the top surface of the front support on both sides of the welding frame. The lateral limit detection components drive the tapered pin at the output end to fit into the corresponding hole on the side of the welding frame.

[0011] The top surface of the front support is recessed in the middle to form a recessed structure for accommodating the bottom end of the welding frame. An upward-facing positioning pin is installed on the bottom surface of the recessed structure, and the positioning pin is fitted with a hole on the bottom surface of the welding frame. The lateral limit detection assembly includes three sets arranged on the left and right sides of the welding frame. Each set of lateral limit detection assemblies includes a tapered pin that is driven by a cylinder to move axially left and right.

[0012] The thread detection mechanism comprises: a support plate mounted below the work platform and supported by a column; a lifting cylinder is mounted on the bottom surface of the support plate; the output end of the lifting cylinder passes through the support plate and connects to the lower lifting plate; a lower lifting plate, an elastic element, and an upper lifting plate are slidably mounted on the column between the work platform and the support plate; the two ends of the elastic element abut against the top surface of the lower lifting plate and the bottom surface of the upper lifting plate; a motor is mounted on the bottom surface of the upper lifting plate; a tool head is mounted on the output end of the motor after passing through the upper lifting plate; the tool head passes through the work platform upward via a bushing assembly; a bearing is installed between the tool head and the inner wall of the bushing assembly to form a rotating assembly.

[0013] The top surface of the lifting plate is also equipped with a limit post facing upwards.

[0014] A lifting and blocking assembly is also installed on the working platform located between the front support and the rear support. The lifting and blocking assembly includes a slide cylinder installed on the bottom surface of the working platform. A lifting seat is installed on the output part of the slide cylinder, and the lifting seat passes upward through the working platform. A light source is installed on the side of the lifting seat facing the rear support.

[0015] The visual detection components include a left visual component located to the left of the rear support, a right visual component located to the right of the rear support, a rear visual component located behind the rear support, a lower visual component located below the rear support, and an upper visual component located above the rear support.

[0016] One end of the OK part conveyor line extends outward toward the work platform, and a guide frame is installed through the work platform at the other end of the OK part conveyor line. An NG part conveyor line is installed on the bottom surface of the work platform. The OK part conveyor line drops the unqualified welding frame to the NG part conveyor line via the guide frame.

[0017] It also includes a protective enclosure for the automated testing equipment, with an operating window on the protective enclosure located in front of the front support.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model consists of a front support and a rear support forming a dual-station layout. Combined with the transfer mechanism, it realizes the automated operation of the welding frame from thread inspection to visual inspection and conveyor line, effectively replacing manual operation, improving inspection efficiency, and ensuring inspection results.

[0020] This utility model also has the following advantages:

[0021] A single transfer mechanism, combined with the forward and reverse conveying of the OK parts conveyor line, enables the classified conveying of good and defective products after the welding frame inspection. It effectively simplifies the moving parts, is ingeniously designed, and is highly practical.

[0022] By replacing the tool head in the front support, rear support, and thread inspection mechanism, the automated inspection equipment can be adapted to the inspection of different models of welded frames, thus taking into account multiple similar products, achieving multi-purpose functionality, and improving versatility and flexibility of use.

[0023] The lifting and blocking component between the front and rear supports is designed so that after the welding frame is transferred and placed on the rear support, the lifting and blocking component moves upward and blocks the space between the front and rear supports. This not only provides effective ambient light through the light source on the lifting platform, but also blocks the operation of the vision inspection component by moving the lifting platform upward, especially preventing the operation of the vision inspection component from affecting the operators in front of the inspection equipment. Attached Figure Description

[0024] Figure 1 This is a structural diagram of the present invention.

[0025] Figure 2 This is a schematic diagram of the structure of this utility model (protective cover omitted).

[0026] Figure 3 This is a schematic diagram of the installation of the clamping component below the support platform of this utility model.

[0027] Figure 4 This is a schematic diagram showing the layout of the lateral limit detection component on the front support platform of this utility model.

[0028] Figure 5 This is a schematic diagram of the thread detection mechanism of this utility model.

[0029] Figure 6 This is a schematic diagram of the lifting and blocking assembly of this utility model.

[0030] Figure 7 This is a schematic diagram showing the layout of the visual inspection components on the working platform of this utility model.

[0031] The components include: 1. Working platform; 2. Lateral limit detection assembly; 3. OK part conveyor line; 4. Clamping components; 5. Thread detection mechanism; 6. NG part conveyor line; 7. Vision inspection assembly; 8. Protective cover; 9. Lifting and blocking assembly; 10. Welding frame;

[0032] 11. Column; 12. Support platform; 13. Rear support; 14. Front support; 141. Recessed structure; 142. Locating pin;

[0033] 31. Guide frame;

[0034] 41. Translation mount; 42. Translation drive assembly;

[0035] 50. Lifting cylinder; 51. Support plate; 52. Support column; 53. Lifting lower plate; 54. Elastic element; 55. Lifting upper plate; 56. Limiting post; 57. Tool head; 58. Bushing assembly; 59. Motor;

[0036] 71. Right visual component; 72. Rear visual component; 73. Left visual component; 74. Lower visual component;

[0037] 81. Operation Window;

[0038] 91. Slide cylinder; 92. Light source. Detailed Implementation

[0039] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0040] like Figure 1 and Figure 2 As shown, an automated inspection device for a welded frame in this embodiment includes a work platform 1. A support platform 12 is mounted on the top surface of the work platform 1 via a column 11. A front support 14 and a rear support 13 are installed at intervals on the work platform 1 below the support platform 12. An OK part conveying line 3 is installed on the work platform 1 behind the rear support 13. A clamping member 4 is mounted on the bottom surface of the support platform 12 via a transfer mechanism. The clamping member 4 clamps the welded frame 10 and transfers it between the front support 14, the rear support 13, and the OK part conveying line 3. A thread inspection mechanism 5 is installed on the work platform 1 below the front support 14, and a vision inspection component 7 is arranged around the rear support 13.

[0041] In this embodiment, the front support platform 14 and the rear support platform 13 form a dual-station layout. Combined with the transfer mechanism, the welding frame 10 achieves automated operation from thread inspection to visual inspection and conveyor line, effectively replacing manual operation.

[0042] like Figure 3As shown, the transfer mechanism includes a translation seat 41 mounted on the bottom surface of the support platform 12 via a translation drive assembly 42. Two sets of clamping members 4 are installed at intervals on the bottom of the translation seat 41. The distance between the two sets of clamping members 4, the distance between the front support platform 14 and the rear support platform 13, and the distance between the rear support platform 13 and the OK part conveying line 3 are all equal. Thus, by moving the translation seat 41 backward once, the welding frame 10 on the front support platform 14 can be transferred to the rear support platform 13 by the front clamping member 4, and at the same time, the welding frame 10 on the rear support platform 13 can be transferred to the OK part conveying line 3 by the rear clamping member 4, realizing the synchronization and linkage of the front and rear transfer actions.

[0043] In this embodiment, the translation drive component 42 can be a lead screw and nut drive that is driven to rotate by the motor component. Through the helical fitting between the nut and the lead screw, the rotation output by the motor component is converted into the linear movement of the translation seat 41.

[0044] In this embodiment, a single transfer mechanism, combined with the forward and reverse conveying of OK parts conveyor line 3, enables the classified conveying of good and defective products after the welding frame 10 is inspected. This effectively simplifies the moving parts, is ingeniously conceived, and has good practicality.

[0045] Lateral limit detection components 2 are installed on the top surface of the front support platform 14 located on the left and right sides of the welding frame 10. The lateral limit detection components 2 drive the tapered pin at the output end to be fitted into the corresponding hole on the side of the welding frame 10.

[0046] In this embodiment, the installation action of the lateral limiting detection component 2 on both sides of the welding frame 10 can not only limit the welding frame 10, but also detect the corresponding holes on the welding frame 10 by the feedback of the actual position of the cylinder that drives the cone pin in the lateral limiting detection component 2 to determine whether the cone pin is installed toward the welding frame 10.

[0047] like Figure 4 As shown, the top surface of the front support 14 is recessed in the middle to form a recessed structure 141 for accommodating the bottom end of the welding frame 10. The bottom surface of the recessed structure 141 is equipped with an upward-facing positioning pin 142. The positioning pin 142 is fitted with a hole on the bottom surface of the welding frame 10, which facilitates manual loading of the welding frame 10 from the front onto the front support 14 and performs preliminary positioning of the loaded welding frame 10. The lateral limit detection component 2 includes three sets arranged on the left and right sides of the welding frame 10. Each set of lateral limit detection components 2 includes a tapered pin that is driven by a cylinder to move axially left and right.

[0048] like Figure 5As shown, the thread detection mechanism 5 has the following structure: a support plate 51 supported by a column 52 and installed below the work platform 1; a lifting cylinder 50 is installed on the bottom surface of the support plate 51; the output end of the lifting cylinder 50 passes through the support plate 51 and connects to the lower lifting plate 53; the lower lifting plate 53, an elastic element 54, and an upper lifting plate 55 are slidably mounted on the column 52 located between the work platform 1 and the support plate 51; the two ends of the elastic element 54 abut against the top surface of the lower lifting plate 53 and the bottom surface of the upper lifting plate 55; a motor 59 is installed on the bottom surface of the upper lifting plate 55; the output end of the motor 59 passes through the upper lifting plate 55 and is fitted with a tool head 57; the tool head 57 passes upward through the work platform 1 via a bushing assembly 58; the bushing assembly 58 ensures the smooth up-and-down movement of the tool head 57 relative to the work platform 1; a bearing is installed between the tool head 57 and the inner wall of the bushing assembly 58 to form a rotating assembly, thereby ensuring the smooth rotation of the tool head 57 relative to the bushing assembly 58.

[0049] In this embodiment, the lifting cylinder 50 operates, pushing the lower lifting plate 53, the elastic element 54, and the upper lifting plate 55 upward, thereby causing the motor 59 and the tool head 57 to move upward. At the same time, the motor 59 operates, driving the tool head 57 to rotate, so that the tool head 57 rotates while moving upward to achieve a helical fit with the threaded hole on the upper welding frame 10, thereby realizing the detection of the thread in the threaded hole. Of course, the front support 14 is provided with a through hole for the tool head 57 to move upward and fit with the threaded hole on the welding frame 10.

[0050] In this embodiment, the elastic element 54 between the upper lifting plate 55 and the lower lifting plate 53 provides a certain elastic buffer when the tool head 57 moves upward to the top and makes contact, effectively avoiding hard contact.

[0051] The top surface of the lifting plate 55 is also equipped with a limit post 56 facing upward, which limits the extreme position of the lifting plate 55.

[0052] In this embodiment, sensors can also be installed on both sides of the lifting plate 55 to provide feedback on the actual height position of the lifting plate 55.

[0053] A lifting and blocking assembly 9 is also installed on the work platform 1 located between the front support platform 14 and the rear support platform 13, such as... Figure 6 As shown, the lifting blocking assembly 9 includes a slide cylinder 91 installed on the bottom surface of the work platform 1. A lifting seat is installed on the output part of the slide cylinder 91, and the lifting seat passes upward through the work platform 1. A light source 92 is installed on the side of the lifting seat facing the rear support 13.

[0054] In this embodiment, the lifting blocking component 9 between the front support platform 14 and the rear support platform 13 is configured so that when the welding frame 10 is transferred and placed on the rear support platform 13, the lifting blocking component 9 moves upward and blocks between the front support platform 14 and the rear support platform 13. This not only provides effective ambient light through the light source 92 on the lifting seat, but also blocks the operation of the vision inspection component 7 through the upward movement of the lifting seat, especially preventing the operation of the vision inspection component 7 from affecting the operators in front of the inspection equipment.

[0055] In this embodiment, a black light-absorbing film can be applied to the surface of the lifting seat to avoid the influence caused by the reflection of light by the lifting seat.

[0056] like Figure 7 As shown, the visual inspection component 7 includes a left visual component 73 located on the left side of the rear support 13, a right visual component 71 located on the right side of the rear support 13, a rear visual component 72 located behind the rear support 13, a lower visual component 74 located below the rear support 13, and an upper visual component located above the rear support 13. The upper visual component is mounted on the support platform 12 with the support bracket facing downward.

[0057] In this embodiment, the vision components can be arranged on the outside of the rear support platform 13 according to the actual detection requirements, and the vision components that are directly opposite or diagonally opposite to the welded frame 10 on the rear support platform 13 can be used according to the actual detection requirements.

[0058] In the detection device of this embodiment, two sets of rear vision components 72, facing each other and diagonally opposite, are arranged behind the rear support platform 13, and two sets of upper vision components, facing each other and diagonally opposite, are arranged above the rear support platform 13, so that the vision components can be selected according to the actual detection requirements of the welded frame 10.

[0059] In this embodiment, a light source can be provided between the left visual component 73 and the rear support 13, and between the right visual component 71 and the rear support 13, facing the welding frame 10 on the rear support 13. The left visual component 73 and the right visual component 71 take an image of the welding frame 10 after passing through the light source.

[0060] Of course, in this embodiment, the rear support 13 is provided with a vertical through structure so that the lower vision component 74 can take an image of the welded frame 10 on the rear support 13 by looking upward.

[0061] One end of the OK part conveyor line 3 extends outward toward the work platform 1. A guide frame 31 is installed through the work platform 1 at the other end of the OK part conveyor line 3. An NG part conveyor line 6 is installed on the bottom surface of the work platform 1. The OK part conveyor line 3 lowers the unqualified welding frame 10 to the NG part conveyor line 6 via the guide frame 31. Thus, after the welding frame 10 is placed on the OK part conveyor line 3, the welding frame 10 can be classified based on the inspection results of the welding frame 10 and the forward or reverse conveying of the OK part conveyor line 3.

[0062] It also includes a protective enclosure 8 that surrounds the automated testing equipment. An operation window 81 is provided on the protective enclosure 8 located in front of the front support platform 14, through which personnel can load materials onto the front support platform 14.

[0063] In this embodiment, conventional components such as safety light curtains, displays, and two-hand operation buttons can be installed on automated testing equipment to facilitate operation and ensure operational safety.

[0064] In this embodiment, by replacing the front support 14, the rear support 13, and the tool head 57 in the thread detection mechanism 5, the automated detection equipment can be adapted to the detection of different models of welding frames 10, thereby taking into account multiple similar products, realizing multi-purpose use, and improving versatility and flexibility of use.

[0065] The method of using this utility model is as follows:

[0066] The operator loads the welded frame 10 to be inspected onto the front support 14 of the work platform 1 through the operation window 81; presses the two-hand operation buttons, the sensor detects that there is a product on the front support 14 and the grating is unobstructed, then the inspection begins, and the lateral limit detection component 2 and the thread detection mechanism 5 are activated; then, the transfer mechanism transfers the welded frame 10 from the front support 14 to the rear support 13, the lifting blocking component 9 moves upward and blocks between the front support 14 and the rear support 13, the vision inspection component 7 starts working, and acquires images of the welded frame 10 at the corresponding angle. By comparing with the standard image, the operator can detect whether the welded frame 10 is missing or has dimensional defects; then, the transfer mechanism transfers the welded frame 10 from the rear support 13 to the OK part conveyor line 3. According to the inspection results, the OK part conveyor line 3 transports the qualified welded frame 10 forward to the next process or the unqualified welded frame 10 backward to the NG part conveyor line 6.

[0067] This invention automates the entire process of welded frame inspection, from thread detection to visual inspection and conveyor line operation, effectively replacing manual labor, improving inspection efficiency, and ensuring inspection results.

[0068] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0069] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. An automated inspection device for welded frames, comprising a work platform (1), characterized in that: The top surface of the work platform (1) is equipped with a support platform (12) via a column (11). The work platform (1) located below the support platform (12) is equipped with a front support (14) and a rear support (13) at intervals. The work platform (1) located behind the rear support (13) is equipped with an OK part conveying line (3). The bottom surface of the support platform (12) is equipped with a clamping component (4) via a transfer mechanism. The clamping component (4) clamps the welding frame (10) and transfers it between the front support (14), the rear support (13), and the OK part conveying line (3). The work platform (1) located below the front support (14) is equipped with a thread detection mechanism (5), and a vision inspection component (7) is arranged around the rear support (13).

2. The automated inspection equipment for welded frames as described in claim 1, characterized in that: The transfer mechanism includes a translation seat (41) mounted on the bottom surface of the support platform (12) via a translation drive assembly (42). Two sets of clamping members (4) are installed at intervals on the bottom surface of the translation seat (41). The distance between the two sets of clamping members (4), the distance between the front support platform (14) and the rear support platform (13), and the distance between the rear support platform (13) and the OK part conveying line (3) are all equal.

3. The automated inspection equipment for welded frames as described in claim 1, characterized in that: Lateral limit detection components (2) are installed on the top surface of the front support (14) located on the left and right sides of the welding frame (10). The lateral limit detection components (2) drive the tapered pin at the output end to be fitted into the corresponding hole on the side of the welding frame (10).

4. The automated inspection equipment for welded frames as described in claim 3, characterized in that: The top surface of the front support (14) is recessed in the middle to form a recessed structure (141) for the bottom end of the welding frame (10) to be accommodated. The bottom surface of the recessed structure (141) is equipped with an upward-facing positioning pin (142), which is fitted with a hole on the bottom surface of the welding frame (10). The lateral limiting detection component (2) includes three sets arranged on the left and right sides of the welding frame (10). Each set of lateral limiting detection components (2) includes a tapered pin that is driven by a cylinder to move axially left and right.

5. The automated inspection equipment for welded frames as described in claim 1, characterized in that: The thread detection mechanism (5) has the following structure: a support plate (51) supported by a column (52) and installed below the working platform (1); a lifting cylinder (50) is installed on the bottom surface of the support plate (51); the output end of the lifting cylinder (50) passes through the support plate (51) and connects to the lower lifting plate (53); the lower lifting plate (53), elastic element (54), and upper lifting plate (53) are slidably mounted on the column (52) located between the working platform (1) and the support plate (51). 55), the two ends of the elastic element (54) abut against the top surface of the lower lifting plate (53) and the bottom surface of the upper lifting plate (55); a motor (59) is installed on the bottom surface of the upper lifting plate (55), the output end of the motor (59) passes through the upper lifting plate (55) and is fitted with a tool head (57), the tool head (57) passes through the bushing assembly (58) and passes upward through the work platform (1), and a bearing is installed between the tool head (57) and the inner wall of the bushing assembly (58) to form a rotating assembly.

6. The automated inspection equipment for welded frames as described in claim 5, characterized in that: The top surface of the lifting plate (55) is also equipped with a limit post (56) facing upward.

7. The automated inspection equipment for welded frames as described in claim 1, characterized in that: A lifting blocking assembly (9) is also installed on the working platform (1) located between the front support (14) and the rear support (13). The lifting blocking assembly (9) includes a slide cylinder (91) installed on the bottom surface of the working platform (1). A lifting seat is installed on the output part of the slide cylinder (91), and the lifting seat passes upward through the working platform (1). A light source (92) is installed on the side of the lifting seat facing the rear support (13).

8. The automated inspection equipment for welded frames as described in claim 1, characterized in that: The visual detection component (7) includes a left visual component (73) located to the left of the rear support (13), a right visual component (71) located to the right of the rear support (13), a rear visual component (72) located behind the rear support (13), a lower visual component (74) located below the rear support (13), and an upper visual component located above the rear support (13).

9. The automated inspection equipment for welded frames as described in claim 1, characterized in that: One end of the OK part conveyor line (3) extends outward toward the work platform (1), and a guide frame (31) is installed through the work platform (1) at the other end of the OK part conveyor line (3). An NG part conveyor line (6) is installed on the bottom surface of the work platform (1). The unqualified welding frame (10) is dropped from the OK part conveyor line (3) to the NG part conveyor line (6) via the guide frame (31).

10. The automated inspection equipment for welded frames as described in claim 1, characterized in that: It also includes a protective enclosure (8) that surrounds the automated testing equipment, and an operating window (81) is provided on the protective enclosure (8) located in front of the front support (14).

Images