EGR cooler sealing performance detection structure

Abstract

The utility model discloses an EGR cooler sealing performance detection structure, which comprises a tool bottom plate, a visual acquisition device and a light source device, a first workpiece supporting block used for positioning a workpiece is installed on the tool bottom plate, the light source device is arranged on the tool bottom plate and located on one side of the workpiece, and the visual acquisition device is arranged on the tool bottom plate and located on the other side of the workpiece. The visual camera is arranged on the tool bottom plate and located on the other side of the workpiece, the light source device can irradiate a light source into a cavity of the workpiece, and the visual camera is used for collecting an image of the workpiece. Space optimization: a traditional leak hunting instrument is omitted, and the occupied space of equipment is remarkably reduced. And non-contact detection: hard light irradiation and visual identification technologies are adopted, so that non-contact detection is realized, and abrasion or loss caused by contact is avoided. And cost control: the detection structure design is simplified, the number of parts is reduced, and the manufacturing and assembling cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sealing performance testing technology, specifically to a testing structure for the sealing performance of an EGR cooler. Background Technology

[0002] Leakage testing is a crucial step in ensuring the normal operation of mechanical equipment and systems, especially in devices such as automotive coolers and heat exchangers, where the quality of cavity sealing directly affects operating efficiency and service life. Currently, the commonly used method for leak testing is leak detection instruments. However, this method has several drawbacks: it relies on leak detection instruments, the equipment is complex, the testing process requires high sealing performance, necessitates the installation of numerous air pipes, and is cumbersome. Utility Model Content

[0003] The purpose of this invention is to solve the problems mentioned above in the background technology by proposing a detection structure for the sealing performance of an EGR cooler.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] An EGR cooler sealing performance testing structure includes a fixture base plate, a vision acquisition device, and a light source device. A first workpiece support block for positioning the workpiece is mounted on the fixture base plate. The light source device is disposed on the fixture base plate on one side of the workpiece, and the vision camera is disposed on the fixture base plate on the other side of the workpiece. The light source device can illuminate the cavity of the workpiece, and the vision camera is used to acquire images of the workpiece.

[0006] As a further embodiment of this utility model: the visual acquisition device includes a visual camera and a light shield, with the light shield covering the visual camera.

[0007] As a further embodiment of this utility model: a light shield bracket is installed on the light shield, and the light shield is fixedly installed on the tooling base plate by the light shield bracket.

[0008] As a further embodiment of this utility model: a cylinder bracket is also installed on the tooling base plate, and a cylinder and a second workpiece support block are installed on the cylinder bracket. The second workpiece support block and the cylinder are both used to press and limit the workpiece.

[0009] As a further embodiment of this utility model: a light source bracket is also provided on the tooling base plate, and the light source device is mounted on the light source bracket.

[0010] As a further embodiment of this utility model: the light source bracket is mounted on the cylinder bracket.

[0011] As a further embodiment of this utility model: a cylinder pressure arm is also installed on the tooling base plate (), and a pressure block is installed at the end of the cylinder pressure arm near the workpiece. The cylinder pressure arm presses and limits the workpiece through the pressure block.

[0012] As a further embodiment of this utility model, a rotary clamping cylinder for clamping and limiting the workpiece is also installed on the tooling base plate.

[0013] As a further embodiment of this utility model, a proximity switch is also installed on the tooling base plate.

[0014] As a further embodiment of this utility model, an electrical box bracket is also installed on the tooling base plate.

[0015] The beneficial effects of this utility model are:

[0016] Space optimization: Eliminates the need for traditional leak detection instruments, significantly reducing the space occupied by the equipment.

[0017] Non-contact inspection: Using strong light irradiation and visual recognition technology, non-contact inspection is achieved, avoiding wear or damage caused by contact.

[0018] Cost control: Simplify the design of the testing structure, reduce the number of parts, and lower manufacturing and assembly costs. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram showing the positions of the visual camera and the high-brightness light source of this utility model.

[0022] In the diagram: 01, tooling base plate; 02, first workpiece support block; 03, second workpiece support block; 04, light shield bracket; 05, light shield; 06, cylinder pressure arm; 07, pressure block; 08, electrical box bracket; 09, solenoid valve bracket; 10, cylinder bracket; 11, light source bracket; 601, proximity switch; 602, vision camera; 603, high-brightness light source; 604, rotary clamping cylinder; 605, fixture handle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1, please refer to Figure 1-2 As shown, this utility model is a detection structure for the sealing performance of an EGR cooler, including a fixture base plate 01, a vision acquisition device, and a light source device. A first workpiece support block 02 for positioning the workpiece is installed on the fixture base plate 01. The light source device is located on one side of the workpiece on the fixture base plate 01, and the vision camera 602 is located on the other side of the workpiece on the fixture base plate 01. The light source device can illuminate the cavity of the workpiece, and the vision camera 602 is used to acquire images of the workpiece.

[0025] Example 2, please refer to Figure 1-2 As shown, this utility model is a detection structure for the sealing performance of an EGR cooler, including a fixture base plate 01, a vision acquisition device, and a light source device. A first workpiece support block 02 for positioning the workpiece is installed on the fixture base plate 01. The light source device is located on one side of the workpiece on the fixture base plate 01, and the vision camera 602 is located on the other side of the workpiece on the fixture base plate 01. The light source device can illuminate the cavity of the workpiece, and the vision camera 602 is used to acquire images of the workpiece.

[0026] The visual acquisition device includes a visual camera 602 and a light shield 05, with the light shield 05 covering the visual camera 602. A light shield bracket 04 is installed on the light shield 05, and the light shield 05 is fixedly mounted on the tooling base plate 01 via the light shield bracket 04.

[0027] Example 3, please refer to Figure 1-2 As shown, this utility model is a detection structure for the sealing performance of an EGR cooler, including a fixture base plate 01, a vision acquisition device, and a light source device. A first workpiece support block 02 for positioning the workpiece is installed on the fixture base plate 01. The light source device is located on one side of the workpiece on the fixture base plate 01, and the vision camera 602 is located on the other side of the workpiece on the fixture base plate 01. The light source device can illuminate the cavity of the workpiece, and the vision camera 602 is used to acquire images of the workpiece.

[0028] The visual acquisition device includes a visual camera 602 and a light shield 05, with the light shield 05 covering the visual camera 602. A light shield bracket 04 is installed on the light shield 05, and the light shield 05 is fixedly mounted on the tooling base plate 01 via the light shield bracket 04.

[0029] A cylinder bracket 10 is also installed on the tooling base plate 01. A cylinder and a second workpiece support block 03 are mounted on the cylinder bracket 10. Both the second workpiece support block 03 and the cylinder are used to press and limit the workpiece. A light source bracket 11 is also provided on the tooling base plate 01, and the light source device is mounted on the light source bracket 11. The light source bracket 11 is located on the cylinder bracket 10.

[0030] Example 4, please refer to Figure 1-2 As shown, this utility model is a detection structure for the sealing performance of an EGR cooler, including a fixture base plate 01, a vision acquisition device, and a light source device. A first workpiece support block 02 for positioning the workpiece is installed on the fixture base plate 01. The light source device is located on one side of the workpiece on the fixture base plate 01, and the vision camera 602 is located on the other side of the workpiece on the fixture base plate 01. The light source device can illuminate the cavity of the workpiece, and the vision camera 602 is used to acquire images of the workpiece.

[0031] The visual acquisition device includes a visual camera 602 and a light shield 05, with the light shield 05 covering the visual camera 602. A light shield bracket 04 is installed on the light shield 05, and the light shield 05 is fixedly mounted on the tooling base plate 01 via the light shield bracket 04.

[0032] A cylinder bracket 10 is also installed on the tooling base plate 01. A cylinder and a second workpiece support block 03 are mounted on the cylinder bracket 10. Both the second workpiece support block 03 and the cylinder are used to press and limit the workpiece. A light source bracket 11 is also provided on the tooling base plate 01, and the light source device is mounted on the light source bracket 11. The light source bracket 11 is located on the cylinder bracket 10.

[0033] A cylinder pressure arm 06 is also installed on the tooling base plate 01. A pressure block 07 is installed at one end of the cylinder pressure arm 06 near the workpiece. The cylinder pressure arm 06 presses and limits the workpiece through the pressure block 07. A rotary clamping cylinder 604 for clamping and limiting the workpiece is also installed on the tooling base plate 01.

[0034] In another embodiment, a proximity switch 601 is also installed on the tooling base plate 01.

[0035] In another embodiment, an electrical box bracket 08 is also installed on the tooling base plate 01.

[0036] It is important to note that:

[0037] Tooling base plate 01 is used to connect various mechanical structures.

[0038] The first workpiece support block 02 positions the workpiece to be tested.

[0039] The second workpiece support block 03 positions the workpiece to be tested.

[0040] The sunshade bracket 04 is used to fix the sunshade 05.

[0041] The light shield 05 blocks external ambient light and reduces external interference.

[0042] The cylinder arm 06 is used to connect the cylinder and the pressure block 07.

[0043] The clamping block 07 is used to clamp the workpiece.

[0044] Electrical box bracket 08 is used to fix the I / O box.

[0045] The solenoid valve bracket 09 is mounted on the tooling base plate 01, and a solenoid valve is also mounted on the solenoid valve bracket 09.

[0046] The cylinder bracket 10 is used to fix the cylinder.

[0047] The light source bracket 11 is driven by a cylinder and is used to extend the light source into the detection cavity.

[0048] The proximity switch 601 is used to detect whether the workpiece is in position.

[0049] A visual camera 602 is placed on the other side of the cavity to acquire images and analyze whether there is light leakage.

[0050] The light source is a high-brightness light source 603, with a brightness of up to 3000 lumens, used to illuminate the inside of the cavity.

[0051] The rotary clamping cylinder 604 drives the pressure arm to clamp the workpiece.

[0052] The jig handle 605 is mounted on the tooling base plate 01 and is used for moving the jig.

[0053] During the inspection, the cavity is illuminated with high brightness by a light source. If there are gaps or leaks in the cavity, the light will pass through the gaps to the other side, and the vision camera 602 will capture the image of the light leakage, thereby determining the sealing problem.

[0054] The foregoing has provided a detailed description of one embodiment of the present invention, but the description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the scope of the claims of the present invention.

Claims

1. A structure for detecting the sealing performance of an EGR cooler, comprising a tooling base plate (01), a vision acquisition device, and a light source device, characterized in that, The tooling base plate (01) is equipped with a first workpiece support block (02) for positioning the workpiece. The light source device is located on the tooling base plate (01) on one side of the workpiece, and the vision camera (602) is located on the tooling base plate (01) on the other side of the workpiece. The light source device can illuminate the cavity of the workpiece, and the vision camera (602) is used to collect images of the workpiece.

2. The EGR cooler sealing performance detection structure according to claim 1, characterized in that, The visual acquisition device includes a visual camera (602) and a light shield (05), the light shield (05) covering the visual camera (602).

3. The EGR cooler sealing performance detection structure according to claim 2, characterized in that, A light shield bracket (04) is installed on the light shield (05), and the light shield (05) is fixedly installed on the tooling base plate (01) by the light shield bracket (04).

4. The EGR cooler sealing performance detection structure according to claim 1, characterized in that, A cylinder bracket (10) is also installed on the tooling base plate (01). A cylinder and a second workpiece support block (03) are installed on the cylinder bracket (10). The second workpiece support block (03) and the cylinder are both used to press and limit the workpiece.

5. The EGR cooler sealing performance detection structure according to claim 4, characterized in that, The tooling base plate (01) is also provided with a light source bracket (11), and the light source device is installed on the light source bracket (11).

6. The EGR cooler sealing performance detection structure according to claim 5, characterized in that, The light source bracket (11) is mounted on the cylinder bracket (10).

7. The EGR cooler sealing performance detection structure according to claim 1, characterized in that, A cylinder pressure arm (06) is also installed on the tooling base plate (01). A pressure block (07) is installed on one end of the cylinder pressure arm (06) near the workpiece. The cylinder pressure arm (06) presses and limits the workpiece through the pressure block (07).

8. The EGR cooler sealing performance detection structure according to claim 7, characterized in that, The tooling base plate (01) is also equipped with a rotary clamping cylinder (604) for clamping and limiting the workpiece.

9. The detection structure for the sealing performance of an EGR cooler according to claim 1, characterized in that, A proximity switch (601) is also installed on the tooling base plate (01).

10. The detection structure for the sealing performance of an EGR cooler according to claim 1, characterized in that, An electrical box bracket (08) is also installed on the tooling base plate (01).

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