Thread detection device of welding frame

Abstract

The utility model discloses a thread detection device for a welding frame, which comprises a working platform, a support platform is arranged on the top surface of the working platform, the welding frame is supported on the support platform, and lateral limiting detection assemblies are arranged on the top surface of the support platform on the left side and the right side of the welding frame. The lateral limiting detection assembly drives the taper pin at the output end to be assembled into a corresponding hole in the side face of the welding frame. A thread detection mechanism is mounted on the bottom surface of the working platform, and a tool head in the thread detection mechanism upwards penetrates through the working platform and then acts on a threaded hole of the welding frame; therefore, whether the corresponding hole is qualified or not can be judged according to the assembling condition of the taper pin while the welding frame is limited by the lateral limiting detection assembly, and after the welding frame is limited, automatic detection of threads is performed by combining with the thread detection mechanism, so that manual operation is effectively replaced, automatic detection of the welding frame is facilitated, and the production efficiency is improved. The detection efficiency and the detection quality are ensured.

Description

A thread detection device for welded frames Technical Field

[0001] This utility model relates to the technical field of welding component inspection equipment, and in particular to a thread 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 observes the position of the screw threads manually, and a thread gauge is needed to tighten them.

[0004] Under the existing inspection methods, manual inspection of a single welded frame takes a long time and is prone to misjudgment due to employee fatigue. This is not only time-consuming and labor-intensive with low production efficiency, but also poses many safety hazards and risks of defective products being released. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a thread inspection device for welded frames with a reasonable structure, thereby effectively replacing manual labor, facilitating automated inspection of welded frames, and ensuring inspection efficiency and quality.

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

[0007] A thread detection device for a welded frame includes a working platform with a support on the top surface of the platform supporting the welded frame. Lateral limiting detection components are installed on the top surfaces of the supports on the left and right sides of the welded frame. The lateral limiting detection components drive the tapered pins at their output ends to fit into corresponding holes on the sides of the welded frame. A thread detection mechanism is installed on the bottom surface of the working platform, in which a tool head passes through the working platform with its head facing upward and acts on the threaded holes of the welded frame.

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

[0009] The top surface of the 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.

[0010] The recessed structure has a through hole.

[0011] The thread detection mechanism has the following structure: a support plate is mounted on the bottom of the working platform and supported by a support column; a lifting cylinder is installed 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; the lower lifting plate, an elastic element, and an upper lifting plate are slidably mounted on the support column located between the working platform and the support plate; a motor is installed on the bottom surface of the upper lifting plate; the output end of the motor passes through the upper lifting plate and is fitted with a tool head.

[0012] The tool head passes upward through the working platform via the bushing assembly, and the bushing assembly and the working platform are slidably fitted together; bearings are installed vertically and vertically between the tool head and the inner wall of the bushing assembly to form a rotating fit.

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

[0014] The top of the limiting column is equipped with a top plate, which is slidably fitted onto the column via a bushing, and the bushing assembly is fixedly locked onto the top plate.

[0015] 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.

[0016] Sensors are installed on the support platform to detect the presence or absence of welded frames on the platform.

[0017] The lateral limiting detection assembly includes three sets arranged on the left and right sides of the welding frame. Each set of lateral limiting detection assemblies includes a tapered pin that is driven by a cylinder to move axially left and right.

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

[0019] This utility model can limit the welding frame with the lateral limiting detection component, and can also judge the qualification of the corresponding hole by the fitting of the tapered pin. After the welding frame is limited, the thread detection mechanism is combined to automatically detect the thread, which can effectively replace manual operation, help realize the automated detection of the welding frame, and ensure detection efficiency and detection quality.

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

[0021] The corresponding holes on the welding frame are detected by feedback from the actual position of the cylinder that drives the cone pin in the lateral limit detection component.

[0022] The lifting cylinder operates, pushing the lower lifting plate, elastic element, and upper lifting plate upwards, thereby causing the motor and tool head to move upwards. Simultaneously, the motor operates, driving the tool head to rotate, thus enabling the tool head to rotate while moving upwards to achieve helical fitting with the threaded hole on the upper welding frame, realizing the detection of the thread in the threaded hole. The abutting installation of the elastic element provides a certain elastic buffer when the tool head moves upwards to the top and makes contact, effectively avoiding hard contact. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the structure of this utility model.

[0024] Figure 2 is a schematic diagram of the layout of the side limit detection component on the support of this utility model.

[0025] Figure 3 is a schematic diagram of the structure of the middle part of the support of this utility model.

[0026] Figure 4 is a schematic diagram of the thread detection mechanism of this utility model.

[0027] Figure 5 is a schematic diagram of the assembly of the bushing assembly and the tool head of this utility model.

[0028] Figure 6 is a schematic diagram of the thread detection mechanism of this utility model with a top plate.

[0029] The components include: 1. Thread detection mechanism; 2. Working platform; 3. Support; 4. Lateral limit detection assembly; 5. Positioning pin; 6. Sensor; 10. Welding frame;

[0030] 11. Lifting cylinder; 12. Support plate; 13. Lifting lower plate; 14. Elastic element; 15. Lifting upper plate; 16. Limiting post; 17. Tool head; 18. Bushing assembly; 19. Motor; 121. Support column; 161. Top plate; 181. Bearing;

[0031] 21. Shaft support;

[0032] 31. Recessed structure; 32. Through hole. Detailed Implementation

[0033] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0034] As shown in Figure 1, a thread detection device for a welding frame in this embodiment includes a working platform 2, a support 3 mounted on the top surface of the working platform 2, a welding frame 10 supported on the support 3, and lateral limiting detection components 4 mounted on the top surface of the support 3 located on the left and right sides of the welding frame 10. The lateral limiting detection components 4 drive the tapered pin at the output end to be fitted into the corresponding hole on the side of the welding frame 10. A thread detection mechanism 1 is mounted on the bottom surface of the working platform 2. The tool head 17 in the thread detection mechanism 1 passes through the working platform 2 with its head facing upward and acts on the threaded hole of the welding frame 10.

[0035] In this embodiment, the lateral limiting detection component 4 can limit the welding frame 10 while also determining the qualification of the corresponding hole by the fitting of the tapered pin. After the welding frame 10 is limited, the thread detection mechanism 1 is used to automatically detect the thread, effectively replacing manual operation and helping to realize the automated detection of the welding frame 10.

[0036] In this embodiment, the corresponding holes on the welding frame 10 are detected by the feedback of the actual position of the cylinder that drives the cone pin in the lateral limit detection component 4.

[0037] As shown in Figures 2 and 3, the top surface of the support 3 is recessed in the middle to form a recessed structure 31 for accommodating the bottom end of the welding frame 10. The bottom surface of the recessed structure 31 is equipped with an upward-facing positioning pin 5, which is fitted with a hole on the bottom surface of the welding frame 10 to facilitate the feeding operation onto the support 3 and to perform preliminary positioning of the feeding welding frame 10.

[0038] The recessed structure 31 has a through hole 32; the through hole 32 can be used to avoid the lower extension structure of the welded frame 10, and the through hole 32 can also be used to limit the welded frame 10 according to actual needs.

[0039] As shown in Figure 4, the thread detection mechanism 1 has the following structure: a support plate 12 supported by a column 121 and installed below the working platform 2; a lifting cylinder 11 is installed on the bottom surface of the support plate 12; the output end of the lifting cylinder 11 passes through the support plate 12 and connects to the lower lifting plate 13; the lower lifting plate 13, the elastic element 14, and the upper lifting plate 15 are slidably mounted on the column 121 located between the working platform 2 and the support plate 12; a motor 19 is installed on the bottom surface of the upper lifting plate 15; the output end of the motor 19 passes through the upper lifting plate 15 and is fitted with a tool head 17.

[0040] In this embodiment, the lifting cylinder 11 operates, pushing the lower lifting plate 13, the elastic element 14, and the upper lifting plate 15 upward, thereby causing the motor 19 and the tool head 17 to move upward; at the same time, the motor 19 operates, driving the tool head 17 to rotate, so that the tool head 17 rotates while moving upward to achieve helical fitting with the threaded hole on the upper welding frame 10, thereby realizing the detection of the thread in the threaded hole.

[0041] In this embodiment, the tool head 17 can be replaced according to actual testing needs to be suitable for testing different types of welding frames 10.

[0042] The tool head 17 passes upward through the bushing assembly 18 to the working platform 2, and the bushing assembly 18 and the working platform 2 are slidably fitted together. Bearings 181 are installed at intervals between the tool head 17 and the inner wall of the bushing assembly 18 to form a rotating fit, as shown in Figure 5. This enables the tool head 17 to move and rotate relative to the working platform 2 in the axial direction, and can form a helical motion through the combination of movement and rotation.

[0043] Limiting posts 16 are also installed on the top surface of the lifting upper plate 15 facing upwards.

[0044] As shown in Figure 6, a top plate 161 is installed at the top of the limiting post 16. The top plate 161 is slidably fitted onto the support post 121 via a bushing. The bushing assembly 18 is fixedly locked onto the top plate 161.

[0045] In this embodiment, the top plate 161 effectively ensures the reliable and stable installation of the bushing assembly 18, and ensures the reliability of the up-and-down sliding motion of the bushing assembly 18 relative to the working platform 2.

[0046] In this embodiment, the top of the support column 121 is locked and fixed to the working platform 2 via the shaft support 21. The top plate 161, the upper lifting plate 15, and the lower lifting plate 13 are slidably mounted on the support column 121 via corresponding bushings. The lower lifting plate 13, the upper lifting plate 15, and the top plate 161 can be driven to move along the axial direction of the support column 121 by the action of the lifting cylinder 11.

[0047] In the embodiment shown in Figure 6, when the top plate 161 moves upward to the top of the corresponding bushing and abuts against the bottom surface of the shaft support 21, it forms an upward mechanical limit, and the elastic element 14 forms a buffer contact.

[0048] The two ends of the elastic element 14 abut against the top surface of the lower lifting plate 13 and the bottom surface of the upper lifting plate 15.

[0049] In this embodiment, the abutting installation of the elastic element 14 provides a certain elastic buffer when the tool head 17 moves upward to the top and makes contact, effectively avoiding hard contact.

[0050] A sensor 6 is installed on the support 3 to detect the presence or absence of the welded frame 10 on the support 3.

[0051] The lateral limit detection component 4 includes three sets arranged on the left and right sides of the welding frame 10. Each set of lateral limit detection components 4 includes a tapered pin that is driven by a cylinder to move axially in the left and right directions.

[0052] The method of using this utility model is as follows:

[0053] Load the welding frame 10 to be inspected onto the support 3 on the work platform 2; press the two-hand operation button, the sensor 6 senses that there is a product on the support 3 and the grating is unobstructed, then the inspection begins, and the lateral limit detection component 4 and the thread detection mechanism 1 start to operate.

[0054] In the lateral limit detection component 4, the cylinder drives the conical pin to move toward the welding frame 10 and fit into the corresponding preset hole; the actual position of the cylinder that drives the conical pin is fed back to determine whether the corresponding hole on the welding frame 10 is qualified or not.

[0055] In the thread inspection mechanism 1, the lifting cylinder 11 and the motor 19 are activated, driving the tool head 17 to move upward and rotate at the same time, so as to achieve helical fitting with the threaded hole on the upper welding frame 10 and realize the inspection of the thread.

[0056] This invention effectively replaces manual labor, helps to achieve automated inspection of welded frames, and ensures inspection efficiency and quality.

[0057] 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.

[0058] 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. A thread detection device for a welded frame, comprising a working platform (2), characterized in that: The top surface of the work platform (2) is equipped with a support (3), which supports the welding frame (10). The top surfaces of the support (3) located on the left and right sides of the welding frame (10) are equipped with lateral limit detection components (4). The lateral limit detection components (4) drive the tapered pin at the output end to be fitted into the corresponding hole on the side of the welding frame (10). The bottom surface of the work platform (2) is equipped with a thread detection mechanism (1). The tool head (17) in the thread detection mechanism (1) passes through the work platform (2) with its head facing upward and acts on the thread hole of the welding frame (10).

2. The thread detection device for a welded frame as described in claim 1, characterized in that: The support (3) has a recessed center on its top surface to form a recessed structure (31) for the bottom of the welding frame (10) to be accommodated. The bottom surface of the recessed structure (31) is fitted with an upward-facing positioning pin (5), which is matched with a hole on the bottom surface of the welding frame (10).

3. A thread inspection device for welding frames as claimed in claim 2, characterized in that: The recessed structure (31) has a through hole (32).

4. The thread detection device for a welded frame as described in claim 1, characterized in that: The structure of the thread detection mechanism (1) is as follows: it includes a support plate (12) supported by a support column (121) and installed below the working platform (2). A lifting cylinder (11) is installed on the bottom surface of the support plate (12). The output end of the lifting cylinder (11) passes through the support plate (12) and connects to the lower lifting plate (13). The lower lifting plate (13), elastic element (14), and upper lifting plate (15) are slidably mounted on the support column (121) between the working platform (2) and the support plate (12). A motor (19) is installed on the bottom surface of the upper lifting plate (15). The output end of the motor (19) passes through the upper lifting plate (15) and is fitted with a tool head (17).

5. The thread detection device for a welded frame as described in claim 4, characterized in that: The tool head (17) passes upward through the working platform (2) via the bushing assembly (18), and the bushing assembly (18) and the working platform (2) are slidably fitted together; bearings (181) are installed at intervals between the tool head (17) and the inner wall of the bushing assembly (18) to form a rotating fit.

6. A thread inspection device for welding frames as claimed in claim 5, characterized in that: The top surface of the lifting plate (15) is also equipped with a limit post (16) facing upwards.

7. The thread detection device for a welded frame as described in claim 6, characterized in that: The top of the limiting post (16) is equipped with a top plate (161), which is slidably mounted on the support column (121) via a bushing, and the bushing assembly (18) is fixedly locked on the top plate (161).

8. A thread inspection device for welding frames as defined in claim 4, characterized in that: The elastic element (14) abuts against the top surface of the lower lifting plate (13) and the bottom surface of the upper lifting plate (15) at both ends.

9. The thread detection device for a welded frame as described in claim 1, characterized in that: A sensor (6) is installed on the support (3) to detect the presence or absence of the welded frame (10) on the support (3).

10. The thread detection device for a welded frame as described in claim 1, characterized in that: The lateral limiting detection component (4) includes three sets arranged on the left and right sides of the welding frame (10). Each set of lateral limiting detection components (4) includes a tapered pin that is driven by a cylinder to move axially in the left and right directions.

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