Automobile instrument crossbeam nut projection welding dotting and leakage prevention detection tooling

Abstract

The application relates to the technical field of automobile instrument processing equipment, and discloses an automobile instrument cross beam nut projection welding dotting and leakage detection tool, which comprises a tool trolley, and a tool table is fixedly installed on the top of the tool trolley. The application has the following advantages and effects: the nut welding indication and leakage detection unit are arranged, the light signal intensity can be recognized through the photoelectric sensor, if the light signal intensity is in a preset range, the nut is normally welded, if the light signal is abnormal, the electric control box immediately triggers the alarm device to issue an alarm, and the specific position information of the missing nut is displayed on the display screen in an eye-catching mode, the operator can find and handle the problem in time, the unqualified products can be effectively prevented from flowing into the next process, and the product quality and production efficiency are greatly improved.

Description

Technical Field

[0001] This application relates to the field of automotive instrument processing equipment technology, and in particular to a tooling for protrusion welding and leak prevention detection of automotive instrument crossbeam nuts. Background Technology

[0002] In the automotive manufacturing industry, the instrument panel crossbeam, as a core structural component supporting the instrument panel, air conditioning system, and other critical parts, directly affects the safety and ride comfort of the entire vehicle. Nut projection welding is a key process in the production of automotive instrument panel crossbeams. By firmly welding the nut to a specific location on the crossbeam, it provides a connection basis for the subsequent assembly of other components. However, the traditional nut projection welding production process faces several technical bottlenecks:

[0003] On the one hand, the workpiece positioning and clamping accuracy is insufficient. During the welding process, if the automotive instrument crossbeam workpiece is not positioned accurately or clamped securely, it will not only cause the nut welding position to shift, affecting the matching degree of subsequent assembly, but may also reduce the welding strength due to uneven welding stress distribution, leading to safety hazards such as nut falling off.

[0004] On the other hand, the marking and leak detection of nut welding rely on manual operation. After welding, it is difficult to detect minor leaks or weak welds by visual inspection or simple tools, which leads to defective products entering the production line.

[0005] In practical use, it was found that the existing inspection fixtures have a low degree of automation, and the functional modules are independent of each other, making it impossible to achieve integrated operation from workpiece positioning and welding indication to leak detection. This makes it difficult to meet the growing demand for high-efficiency and high-precision production in the automotive manufacturing industry. Therefore, we proposed a fixture for projectile welding of automotive instrument crossbeam nuts and leak detection to solve the above problems. Utility Model Content

[0006] The purpose of this application is to address the shortcomings of existing technologies, such as low automation, independent functional modules, and the inability to achieve integrated operation from workpiece positioning and welding indication to leak detection. The proposed solution is a tooling for projecting weld points and leak detection on the crossbeam nuts of automotive instrument panels.

[0007] The above-mentioned technical objective of this application is achieved through the following technical solution: a tooling for protruding welding points and leak detection of nuts on automotive instrument crossbeams, comprising a tooling trolley, a tooling table fixedly mounted on the top of the tooling trolley, two sets of workpiece positioning and clamping units set on the top of the tooling table, a single workpiece set between the two sets of workpiece positioning and clamping units, and a nut welded onto the workpiece; multiple sets of nut welding indicators and leak detection units are set on the tooling table, and the workpiece positioning and clamping units are located outside the multiple sets of nut welding indicators and leak detection units.

[0008] A further configuration of this application is as follows: the workpiece positioning and clamping unit includes a clamping seat, a hydraulic cylinder and a clamping jaw. Two clamping seats are fixedly installed on both sides of the top of the tooling table, and a hydraulic cylinder is fixedly installed on the bottom of the tooling table. A clamping jaw is rotatably installed inside the clamping seat. The top end of the hydraulic cylinder output shaft is rotatably connected to the clamping jaw, and the clamping jaw is adapted to the workpiece.

[0009] By adopting the above technical solution and by setting up a workpiece positioning and clamping unit, the hydraulic cylinder can drive the gripper to rotate around the clamping seat, which can achieve a tight fit of the workpiece from above and ensure that the workpiece will not be displaced or vibrated during subsequent processing.

[0010] A further configuration of this application is as follows: the nut welding indicator and leak detection unit includes a mounting base, a cylinder and a photoelectric sensor. The mounting base is fixedly installed on the top of the tooling table. The mounting base is located on the outside of the workpiece. The cylinder is fixedly installed on the outside of the mounting base. The cylinder output shaft extends to the inside of the mounting base.

[0011] By adopting the above technical solution, and by setting up a nut welding indicator and a leak detection unit, the cylinder can drive the pointing block and photoelectric sensor to move towards one side of the workpiece.

[0012] A further feature of this application is that a pointing block is provided at one end of the cylinder output shaft near the workpiece, and the pointing block is adapted to the workpiece.

[0013] By adopting the above technical solution and setting a pointing block, the pointing block can accurately point to the preset nut welding position on the workpiece; thus achieving the purpose of providing operators with intuitive visual marking guidance.

[0014] A further feature of this application is that a photoelectric sensor is provided on the outside of the cylinder output shaft, and the photoelectric sensor is adapted to the nut.

[0015] By adopting the above technical solution and setting up a photoelectric sensor, the intensity of the light signal can be sensed by the photoelectric sensor, thereby enabling the identification of whether the nut is properly welded.

[0016] A further feature of this application is that an electrical control box is provided on the right side of the tooling trolley, and the electrical control box is electrically connected to the photoelectric sensor, hydraulic cylinder, and pneumatic cylinder.

[0017] By adopting the above technical solution and by setting up an electrical control box, the hydraulic cylinder and the pneumatic cylinder can be controlled through the electrical control box, and the purpose of issuing an alarm based on the signal can be achieved.

[0018] A further feature of this application is that the electrical control box is equipped with a display screen.

[0019] By adopting the above technical solution and installing a display screen, the specific location information of the missing nut can be displayed in a conspicuous manner, which can help operators to discover and deal with the problem in a timely manner.

[0020] A further feature of this application is that casters are provided at all four corners of the bottom of the tooling trolley.

[0021] By adopting the above technical solution, and by setting up casters with a swivel caster design and equipped with a braking device, the tooling can be moved and positioned flexibly within the workshop to meet different production layouts and operational needs. At the same time, the tooling can be locked in position by braking during operation to ensure the stability and safety of the tooling operation.

[0022] The beneficial effects of this application are:

[0023] (1) Through the cooperation of hydraulic cylinder, clamp and jaw, the hydraulic cylinder can drive the jaw to rotate around the clamp, which can achieve close contact with the workpiece from above, and ensure that the workpiece will not be displaced or vibrated during subsequent processing, and avoid damage to the workpiece surface due to excessive pressure, thereby achieving high-precision positioning and stable clamping, laying the foundation for subsequent processes.

[0024] (2) Through the cooperation of the cylinder and the pointing block, the cylinder can drive the pointing block to approach the workpiece, and the pointing block can accurately point to the preset nut welding position on the workpiece; it can provide the operator with intuitive visual marking guidance, ensure the accuracy of the welding position, and thus avoid the welding point offset or omission caused by human judgment error, and improve the standardization and accuracy of the welding process. Then the worker marks the points according to the instructions, which provides a basis for subsequent nut welding.

[0025] (3) By combining the cylinder and the photoelectric sensor, the cylinder can drive the photoelectric sensor to move into the nut. The photoelectric sensor can identify the intensity of the light signal. If the intensity of the light signal is within the preset range, it means that the nut is welded normally. If the light signal is abnormal, the control box will immediately trigger the alarm device to issue an alarm. At the same time, the specific location information of the missing nut will be displayed on the display screen in a conspicuous manner. This can help operators to find and deal with problems in a timely manner, effectively prevent unqualified products from flowing into the next process, and greatly improve product quality and production efficiency. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural schematic diagram of the automotive instrument crossbeam nut projection welding point and leak prevention detection tooling of this application;

[0028] Figure 2 This is a schematic diagram of the main structure of the automotive instrument panel crossbeam nut projection welding point and leak prevention detection fixture of this application;

[0029] Figure 3 This is a side view structural schematic diagram of the automotive instrument crossbeam nut projection welding point and leak prevention detection tooling of this application;

[0030] Figure 4 This is a top view schematic diagram of the tooling for detecting the projection welding points and leak prevention of the nut on the automotive instrument crossbeam of this application.

[0031] In the diagram: 1. Tooling trolley; 101. Tooling table; 2. Workpiece positioning and clamping unit; 3. Workpiece; 4. Nut welding indicator and leak detection unit; 201. Gripper; 401. Mounting base; 402. Cylinder; 5. Electrical control box. Detailed Implementation

[0032] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0033] See Figures 1-4 This application provides a tooling for detecting the projection welding of nuts on automotive instrument crossbeams and for leak prevention, including a tooling trolley 1. A tooling table 101 is fixedly installed on the top of the tooling trolley 1. Two sets of workpiece positioning and clamping units 2 are provided on the top of the tooling table 101. The same workpiece 3 is provided between the two sets of workpiece positioning and clamping units 2, and a nut is welded on the workpiece. Multiple sets of nut welding indicators and leak detection units 4 are provided on the tooling table 101, and the workpiece positioning and clamping units 2 are located outside the multiple sets of nut welding indicators and leak detection units 4.

[0034] Specifically, the workpiece positioning and clamping unit 2 includes a clamping seat, a hydraulic cylinder and a gripper 201. Two clamping seats are fixedly installed on the top two sides of the tooling table 101, and a hydraulic cylinder is fixedly installed on the bottom of the tooling table 101. The gripper 201 is rotatably installed inside the clamping seat. The top end of the hydraulic cylinder output shaft is rotatably connected to the gripper 201, and the gripper 201 is adapted to the workpiece 3.

[0035] Specifically, the nut welding indicator and leak detection unit 4 includes a mounting base 401, a cylinder 402 and a photoelectric sensor. The mounting base 401 is fixedly installed on the top of the tooling table 101. The mounting base 401 is located outside the workpiece 3. The cylinder 402 is fixedly installed on the outer side of the mounting base 401. The output shaft of the cylinder 402 extends to the inner side of the mounting base 401.

[0036] Specifically, a guide block is provided at the end of the output shaft of cylinder 402 near workpiece 3, and the guide block is adapted to workpiece 3.

[0037] Specifically, a photoelectric sensor is installed on the outside of the output shaft of cylinder 402, and the photoelectric sensor is compatible with the nut.

[0038] Specifically, an electrical control box 5 is installed on the right side of the tooling trolley 1. The electrical control box 5 is electrically connected to the photoelectric sensor, hydraulic cylinder, and pneumatic cylinder.

[0039] Specifically, the electrical control box 5 is equipped with a display screen.

[0040] Specifically, the tooling trolley 1 is equipped with casters at all four corners of its bottom.

[0041] In this application, during operation, the automotive instrument crossbeam workpiece 3 is first placed between two sets of workpiece positioning and clamping units 2 on the tooling table 101. By activating the hydraulic cylinder at the bottom of the tooling table 101, the pressure can be transmitted to the gripper 201 through the hydraulic transmission system, causing it to rotate around the clamping seat. Since the gripper 201 is highly compatible with the outline of the workpiece 3, it can achieve a tight fit between the workpiece 3 from above, ensuring that the workpiece 3 will not be displaced or vibrated during subsequent processing, and avoiding damage to the workpiece surface due to excessive pressure. This achieves high-precision positioning and stable clamping, laying the foundation for subsequent processes.

[0042] Before the projection welding process begins, the nut welding indicator and leak detection unit 4 plays a crucial role. The cylinder 402 on the mounting base 401, under the command of the electrical control box 5 and controlled by air pressure, can drive the output shaft to extend smoothly and drive the pointing block to accurately point to the preset nut welding position on the workpiece 3. This provides operators with intuitive visual marking guidance, ensuring the accuracy of the welding position, thereby avoiding weld point offset or omission due to human judgment error, and improving the standardization and accuracy of the welding process. Subsequently, the worker marks the points according to the instructions, providing a basis for subsequent nut welding.

[0043] After the projection welding process is completed, the nut welding indicator and leak detection unit 4 enters the leak detection stage. The output shaft of cylinder 402 can drive the photoelectric sensor to move into the nut. The photoelectric sensor works based on the principle of light reflection or transmission, and can quickly and accurately detect the presence or absence of the nut. When the nut is welded normally, the light signal intensity received by the sensor is low, which is within the preset normal range. If the nut is missing from the weld, the light signal intensity increases, and the signal will change significantly. These detection signals can be transmitted to the electrical control box 5 in real time. The electrical control box 5 uses a built-in intelligent algorithm and data analysis system to quickly process and compare the signals. Once an abnormal signal is detected, the electrical control box 5 immediately triggers the alarm device to sound an alarm. At the same time, it displays the specific location information of the missing nut in a conspicuous manner on the display screen. This can help operators to discover and deal with problems in a timely manner, effectively prevent unqualified products from flowing into the next process, and greatly improve product quality and production efficiency.

[0044] The entire tooling system achieves fully automated operation from workpiece positioning and welding indication to leak detection through the coordinated control of photoelectric sensors, hydraulic cylinders, and air cylinders in the electrical control box 5. This effectively improves the accuracy, efficiency, and reliability of the projection welding process for automotive instrument crossbeam nuts, while reducing labor costs and quality risks.

Claims

1. A tooling for detecting projection welding points and leak prevention on the nuts of an automotive instrument panel crossbeam, characterized in that, Includes a tooling trolley (1), on the top of which a tooling table (101) is fixedly installed, and on the top of the tooling table (101) are two sets of workpiece positioning and clamping units (2), and between the two sets of workpiece positioning and clamping units (2) is the same workpiece (3), on which a nut is welded. The tooling table (101) is provided with multiple sets of nut welding indicators and leak detection units (4), and the workpiece positioning and clamping unit (2) is located outside the multiple sets of nut welding indicators and leak detection units (4).

2. The tooling for spot welding and leak prevention detection of automotive instrument crossbeam nuts according to claim 1, characterized in that: The workpiece positioning and clamping unit (2) includes a clamping seat, a hydraulic cylinder and a clamping jaw (201). Two clamping seats are fixedly installed on the top two sides of the tooling table (101). A hydraulic cylinder is fixedly installed at the bottom of the tooling table (101). A clamping jaw (201) is rotatably installed inside the clamping seat. The top end of the output shaft of the hydraulic cylinder is rotatably connected to the clamping jaw (201). The clamping jaw (201) is adapted to the workpiece (3).

3. The tooling for spot welding and leak prevention detection of automotive instrument crossbeam nuts according to claim 1, characterized in that: The nut welding indicator and leak detection unit (4) includes a mounting base (401), a cylinder (402) and a photoelectric sensor. The mounting base (401) is fixedly installed on the top of the tooling table (101). The mounting base (401) is located outside the workpiece (3). The cylinder (402) is fixedly installed on the outer side of the mounting base (401). The output shaft of the cylinder (402) extends to the inner side of the mounting base (401).

4. The tooling for spot welding and leak prevention detection of automotive instrument crossbeam nuts according to claim 3, characterized in that: The cylinder (402) output shaft is provided with a pointing block at one end near the workpiece (3), and the pointing block is adapted to the workpiece (3).

5. The tooling for spot welding and leak prevention detection of automotive instrument crossbeam nuts according to claim 3, characterized in that: A photoelectric sensor is provided on the outside of the output shaft of the cylinder (402), and the photoelectric sensor is adapted to the nut.

6. The tooling for spot welding and leak prevention detection of automotive instrument crossbeam nuts according to claim 1, characterized in that: An electrical control box (5) is provided on the right side of the tooling trolley (1), and the electrical control box (5) is electrically connected to the photoelectric sensor, hydraulic cylinder and pneumatic cylinder.

7. The tooling for spot welding and leak prevention detection of automotive instrument crossbeam nuts according to claim 6, characterized in that: The electrical control box (5) is equipped with a display screen.

8. The tooling for spot welding and leak prevention detection of automotive instrument crossbeam nuts according to claim 1, characterized in that: The tooling trolley (1) is equipped with casters at all four corners of its bottom.

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