A tooling for testing the airtightness of workpieces using intelligent driving technology

Abstract

This utility model relates to a tooling for testing the airtightness of workpieces in intelligent driving technology. Its specific structure includes a testing base, on which a fixing component and a clamping connection component are respectively arranged. The clamping connection component includes a lower clamping cylinder and an upper clamping rotary cylinder. The lower clamping cylinder is fixedly connected to the bottom of the clamping base, and the upper clamping rotary cylinder is fixedly connected to the top of the clamping base. The clamping connection component also includes two clamping fixing cylinders arranged symmetrically on one side of the upper clamping rotary cylinder. A positioning carrier is fixedly connected between the two clamping fixing cylinders. The fixing component includes a fixing base and a plug inclinedly arranged on the fixing base. By setting a linkage fixing device, the stability of the airtightness test is improved.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, specifically to a tooling for testing the airtightness of workpieces in intelligent driving technology. Background Technology

[0002] Air tightness testing is a common inspection process for parts. It can detect whether a product is leaking by inputting air pressure into the part, and the test results are highly accurate.

[0003] In the process of intelligent driving, exhaust pipes for intelligent driving vehicles are produced. Since the pipe is a one-piece metal product, it needs to be tested for air tightness after molding. The existing method for testing the air tightness of this part is to directly introduce air pressure into the exhaust pipe through an air tightness testing instrument to detect leaks. If the air pressure value meets the specifications, it passes the air tightness test standard.

[0004] Existing airtightness testing methods involve fixing the product with tooling fixtures, manually sealing the gaps in the pipes, and then using an airtightness tester to check for air permeability. These methods are not only inefficient but also have poor sealing performance, resulting in relatively low accuracy. Therefore, a workpiece airtightness testing fixture based on intelligent driving technology is needed. Utility Model Content

[0005] The purpose of this invention is to achieve integrated airtightness detection and fixation by setting up an airtightness detection device that can be linked, thereby improving the accuracy of airtightness detection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a workpiece airtightness testing fixture for intelligent driving technology, comprising a testing base, on which a fixing component and a clamping connection component are respectively provided. The clamping connection component includes a lower clamping cylinder and an upper clamping rotary cylinder. The lower clamping cylinder is fixedly connected to the bottom of the clamping base, and the upper clamping rotary cylinder is fixedly connected to the top of the clamping base. The clamping connection component also includes a clamping fixing cylinder disposed on one side of the upper clamping rotary cylinder. The number of clamping fixing cylinders is two and they are symmetrically arranged. A positioning carrier is fixedly connected between the two clamping fixing cylinders. The fixing component includes a fixing base and a plug inclinedly disposed on the fixing base.

[0007] Preferably, the positioning carrier has positioning slots, which are symmetrically arranged.

[0008] Preferably, a linkage seat is fixedly connected to the clamping and fixing cylinder, and a linkage rod is rotatably connected to the linkage.

[0009] Preferably, the output end of the lower pressing cylinder is provided with a placement platform above the detection base, and the surface of the placement platform is integrally formed with placement protrusions.

[0010] Preferably, the piston rod end of the upper clamping rotary cylinder is fixedly connected to an alignment screw, which is directly opposite the center of the placement protrusion.

[0011] Preferably, the fixing assembly further includes a horizontal sliding cylinder fixedly connected to the fixing base, a horizontal slide rail fixedly provided on the horizontal sliding cylinder, a sliding seat slidably connected to the horizontal slide rail and fixed to the end of the piston rod of the horizontal sliding cylinder, and the plug fixedly disposed on the sliding seat.

[0012] Preferably, an inclined block is fixedly connected to the end of the sliding seat, an inclined surface is provided on the inclined block, a sealing cylinder is fixedly connected to the inclined surface, the piston rod end of the sealing cylinder pushes the plug, and a detection air hole is provided on the plug.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Set up a testing base and install a clamping connection component on the testing base. The clamping connection component can clamp and fix the pipe to be tested, achieve a fixing effect, and reduce errors.

[0015] 2. Set up a fixing component. The fixing component can ventilate the pipeline to be tested and is fitted at the opening of the pipeline to be tested, stabilizing the pipeline to be tested while ensuring the stability of the input air pressure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a workpiece airtightness testing fixture for intelligent driving technology according to this utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of a workpiece airtightness testing fixture for intelligent driving technology according to this utility model. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of a workpiece airtightness testing fixture for intelligent driving technology according to this utility model. Figure 3 ;

[0019] Figure 4 This is a schematic diagram of the structure of a workpiece airtightness testing fixture for intelligent driving technology according to this utility model. Figure 4 .

[0020] In the picture:

[0021] 1. Testing base;

[0022] 2. Fixing component; 21. Fixing base; 211. Plug; 22. Horizontal sliding cylinder; 221. Horizontal slide rail; 222. Sliding seat; 223. Inclined block; 224. Inclined surface; 225. Sealing cylinder;

[0023] 3. Pressing connection assembly; 31. Lower pressing cylinder; 32. Upper pressing rotary cylinder; 321. Alignment screw; 33. Pressing and fixing cylinder; 331. Linkage seat; 332. Linkage rod; 333. Fixing pressure plate; 34. Positioning carrier; 341. Positioning groove; 35. Placement platform; 351. Placement protrusion. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0025] refer to Figure 1-4 A testing base 1 is set up, on which the pipe to be tested is fixed and its airtightness is tested. The testing base 1 is equipped with a fixing component 2 and a pressing connection component 3. The fixing component 2 can fix the front end of the pipe to be tested and input airflow into the pipe to be tested, while the pressing connection component 3 can fix the rear end of the pipe to be tested, ensuring the accuracy of the testing position and the stability during the testing.

[0026] refer to Figure 1-4 The clamping connection assembly 3 includes a lower clamping cylinder 31 and an upper clamping rotary cylinder 32. The lower clamping cylinder 31 is fixedly connected to the bottom of the clamping base and can push the product to be tested upwards from the bottom. The upper clamping rotary cylinder 32 is fixedly connected to the top of the clamping base. The clamping connection assembly 3 also includes a clamping fixing cylinder 33 disposed on one side of the upper clamping rotary cylinder 32. A linkage seat 331 is fixedly connected to the clamping fixing cylinder 33, a linkage rod 332 is rotatably connected to the linkage seat 331, and a fixing pressure plate 333 is rotatably connected to the linkage rod 332. By extending and retracting the piston rod of the clamping fixing cylinder 33, the fixing pressure plate 333 is driven. The end of the cylinder 33 is raised or lowered to press. The piston rod end of the pressing and fixing cylinder 33 is rotatably connected to the end of the fixing plate 333. The linkage rod 332 is rotatably connected to the middle of the fixing plate 333. The output end of the lower pressing cylinder 31 is provided with a placement platform 35 above the detection base 1. The surface of the placement platform 35 is integrally formed with a placement protrusion 351. The lower pressing cylinder 31 pushes the placement platform 35 to rise, close to the end of the upper pressing rotary cylinder 32. The piston rod end of the upper pressing rotary cylinder 32 is fixedly connected to an alignment screw 321. The alignment screw 321 is directly opposite the middle of the placement protrusion 351, which can be used to position the end of the pipe to be tested.

[0027] refer to Figure 1-4 The clamping connection assembly 3 also includes a clamping and fixing cylinder 33 disposed on one side of the upper clamping rotary cylinder 32. There are two clamping and fixing cylinders 33 arranged symmetrically. A positioning carrier 34 is fixedly connected between the two clamping and fixing cylinders 33. A positioning groove 341 is provided on the positioning carrier 34. The positioning grooves 341 are arranged symmetrically. The pipe to be tested is placed on the positioning carrier 34 and locked in the positioning groove 341 for fixation.

[0028] refer to Figure 1-4 The fixing component 2 includes a fixing base 21 and a plug 211 inclinedly disposed on the fixing base 21. The fixing component 2 also includes a horizontal sliding cylinder 22 fixedly connected to the fixing base 21. A horizontal slide rail 221 is fixedly provided on the horizontal sliding cylinder 22. A sliding seat 222 fixed to the piston rod end of the horizontal sliding cylinder 22 is slidably connected to the horizontal slide rail 221. The plug 211 is fixedly disposed on the sliding seat 222. An inclined block 223 is fixedly connected to the end of the sliding seat 222. An inclined surface 224 is provided on the inclined block 223. A sealing cylinder 225 is fixedly connected to the inclined surface 224. The piston rod end of the sealing cylinder 225 pushes the plug 211. A detection air hole is provided on the plug 211. The sealing port can be fitted onto the critical end to be tested. The sealing port is connected to an external air jet device for air pressure measurement.

[0029] The working principle of this device is as follows: When performing an airtightness test, the pipe to be tested is placed on the positioning carrier 34 along the positioning groove 341. The upper clamping rotary cylinder 32 is activated, which drives the alignment screw 321 to rotate downward for alignment, so that the end of the pipe to be tested is aligned and pressed on the placement protrusion 351. The height of the end of the pipe to be tested can be adjusted by adjusting the height of the lower clamping cylinder 31. At this time, the clamping and fixing cylinder 33 is activated, which drives the fixing plate 333 to press the pipe to be tested onto the positioning carrier 34. The piston rod of the horizontal sliding cylinder 22 retracts, so that the plug 211 moves to the relative position of the port of the pipe to be tested. The piston rod of the sealing cylinder 225 extends, so that the plug 211 moves toward the direction of the pipe to be tested for sealing. Gas is introduced into the test air hole through an external airtightness tester to perform an airtightness test.

[0030] The above embodiments are used to further illustrate the present invention, but do not limit the present invention to these specific embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be understood as being within the protection scope of the present invention.

Claims

1. An intelligent driving technology workpiece airtightness detection tool, characterized in that: The device includes a detection base (1), on which a fixing component (2) and a clamping connection component (3) are respectively provided. The clamping connection component (3) includes a lower clamping cylinder (31) and an upper clamping rotary cylinder (32). The lower clamping cylinder (31) is fixedly connected to the bottom of the detection base (1), and the upper clamping rotary cylinder (32) is fixedly connected to the top of the detection base (1). The clamping connection component (3) also includes a clamping fixing cylinder (33) disposed on one side of the upper clamping rotary cylinder (32). There are two clamping fixing cylinders (33) and they are symmetrically arranged. A positioning carrier (34) is fixedly connected between the two clamping fixing cylinders (33). The fixing component (2) includes a fixing base (21) and a plug (211) inclinedly disposed on the fixing base (21). 2.The intelligent driving technology workpiece airtightness detection tooling device of claim 1, wherein: The positioning carrier (34) is provided with positioning grooves (341), and the positioning grooves (341) are symmetrically arranged. 3.The intelligent driving technology workpiece airtightness detection tooling device of claim 1, wherein: A linkage seat (331) is fixedly connected to the clamping and fixing cylinder (33), a linkage rod (332) is rotatably connected to the linkage seat (331), a fixing pressure plate (333) is rotatably connected to the linkage rod (332), the piston rod end of the clamping and fixing cylinder (33) and the end of the fixing pressure plate (333) are rotatably connected, and the linkage rod (332) is rotatably connected to the middle of the fixing pressure plate (333). 4.The intelligent driving technology workpiece airtightness detection tooling device of claim 1, wherein: The output end of the lower pressing cylinder (31) is provided with a placement platform (35) above the detection base (1), and the surface of the placement platform (35) is integrally formed with a placement protrusion (351). 5.The intelligent driving technology workpiece airtightness detection tooling device of claim 4, wherein: The piston rod end of the upper pressing rotary cylinder (32) is fixedly connected to an alignment screw (321), which is directly opposite the middle of the placement protrusion (351). 6.The intelligent driving technology workpiece airtightness detection tooling device of claim 1, wherein: The fixing assembly (2) further includes a horizontal sliding cylinder (22) fixedly connected to the fixing base (21). A horizontal slide rail (221) is fixedly provided on the horizontal sliding cylinder (22). A sliding seat (222) fixed to the piston rod end of the horizontal sliding cylinder (22) is slidably connected to the horizontal slide rail (221). The plug (211) is fixedly disposed on the sliding seat (222). 7.The intelligent driving technology workpiece airtightness detection tooling device of claim 6, wherein: An inclined block (223) is fixedly connected to the end of the sliding seat (222). An inclined surface (224) is provided on the inclined block (223). A sealing cylinder (225) is fixedly connected to the inclined surface (224). The piston rod end of the sealing cylinder (225) pushes the plug (211). An airtight opening is provided on the plug (211).

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