An enclosed detection chamber

Abstract

This utility model relates to the field of industrial vision inspection technology and discloses a closed inspection chamber. The chamber body is formed by bending a single plate, resulting in a U-shaped cross-section. The chamber body includes a back panel and side panels on both sides of the back panel. The front edges of the side panels are turned inward to form flaps. A cover plate is fastened to the top of the chamber body. Two sets of guide strips are L-shaped plates, including connected outer side panels and a front baffle. The outer side panels are installed on the outside of the side panels, so that the front baffle is located in front of the flaps and parallel to the flaps, forming a sliding space between the flaps and the front baffle. The top of the chamber door has a flap, and the two sides of the chamber door can be inserted downward into the sliding space to achieve a pull-out fit with the chamber body. After the chamber door is fully inserted into the sliding space, the flap is supported by the front edge of the cover plate. The pull-out chamber door saves time for industrial camera parameter debugging and calibration. The top of the chamber body is covered by the cover plate, and the front is closed by the chamber door, resulting in high airtightness and effective isolation of external light.

Description

Technical Field

[0001] This utility model relates to the field of industrial visual inspection technology, and in particular to a closed inspection chamber. Background Technology

[0002] Currently, in the field of industrial vision inspection, the "open inspection environment" solution is commonly used for online judgment of part dimensions, surface defects, or assembly correctness: industrial cameras, lenses, and light sources are directly exposed in the surrounding space of the production line, acquiring images of the object under test in real time and sending them to the back-end algorithm for processing. This solution is simple in structure, low in cost, and flexible in installation, and is therefore widely used in various production lines such as 3C electronics, automotive parts, and food packaging.

[0003] However, as testing standards become increasingly stringent, the aforementioned open structure suffers from problems related to changes in ambient light and interference from reflected light. Specifically, ceiling lighting, indicator lights on nearby machines, momentary obstructions from personnel movement, and natural light entering through windows all superimpose or cancel out industrial light sources, causing drastic fluctuations in the illuminance of the tested area. As a result, the brightness difference in images of the same workpiece acquired at different times can exceed 20%, shadow positions shift randomly, and edge contrast decreases, directly leading to increased rates of missed or false detections. Furthermore, the open structure requires frequent adjustments to camera position or blocking of ambient light during industrial camera parameter debugging and calibration, making operation inconvenient and inefficient. While some existing testing equipment uses simple light shields, these shields are typically fixed with only a few panels and screws, resulting in large gaps, low sealing levels, and light penetration from the sides. Moreover, disassembly and maintenance are relatively cumbersome. In summary, existing simple light shields cannot completely solve the problems of light interference and ease of debugging. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a closed testing chamber with a pull-out door, which saves time on industrial camera parameter debugging and calibration. The top of the chamber is covered by a cover plate, and the front is sealed by a door, resulting in high airtightness and effective isolation of external light.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A closed testing chamber includes: The silo body is formed by bending a single sheet of material, resulting in a U-shaped cross-section. The silo body includes a back panel and side panels on both sides of the back panel. The front edge of the side panels is turned inward to form a flap. The cover plate is fastened to the top of the silo. Two sets of guide strips are L-shaped plates, including an outer side plate and a front baffle connected to each other. The outer side plate is installed on the outside of the side plate, so that the front baffle is located in front of the flap and parallel to the flap, and a sliding space is formed between the flap and the front baffle. The door has a flange at the top, and the two sides of the door can be inserted downward into the sliding space to achieve a pull-out fit with the compartment body. After the door is fully inserted into the sliding space, the flange is supported by the front side of the cover plate.

[0006] As a further implementation, a groove is provided at the middle of the bottom of the back panel, and a fixing plate is vertically connected to the back panel at the bottom of the groove. The fixing plate extends to the rear side of the back panel and has two threaded holes, through which the compartment is installed.

[0007] As a further implementation, the back panel is provided with baffle fixing holes on both sides; it also includes a rear baffle, with rear baffle mounting holes on both sides for cooperating with the baffle fixing holes and fasteners to close the groove.

[0008] As a further implementation, the bottom end of the rear baffle is flush with the bottom end of the rear back panel, and the height of the rear baffle is not less than the height of the groove.

[0009] As a further implementation, a guide strip fixing hole is provided near the front side of the side plate, which is used to connect with the guide strip mounting hole provided on the outer side plate.

[0010] As a further implementation, the height of the guide strip is equal to the height of the side plate, and the distance from the guide strip mounting hole to the front side of the outer side plate is greater than the distance from the guide strip fixing hole to the front side of the side plate, so that there is a set distance between the front baffle and the flange.

[0011] As a further implementation, the top of the rear panel and the two side panels are provided with cover plate fixing holes for fixed connection with the cover plate.

[0012] As a further implementation, the cover plate includes a top cover plate, and the rear side and both sides of the top cover plate are vertically connected to the surrounding plate. The surrounding plate is provided with cover plate mounting holes for engaging with the cover plate fixing holes through fasteners.

[0013] As a further implementation, the top of the door is located on the front side of the top cover plate, and the flange at the top of the door is set perpendicular to the door, so that the flange can be supported by the front side of the top cover plate.

[0014] As a further implementation, a pull ring is provided at the middle position of the top of the flange, which can be used to pull the compartment door out.

[0015] The beneficial effects of this utility model are as follows: The chamber of this invention is constructed using a bending process. The top of the chamber is covered by a cover plate, and the front is sealed with a door. The chamber has high airtightness, effectively isolating external light and reducing light interference to below 30%, thereby improving image quality and detection accuracy. At the same time, the pull-out door design reduces the time for industrial camera parameter debugging and calibration by about 50%. Users can quickly access the interior without tools, reducing operational steps and human error during the debugging process. The chamber's fixing plate can be completely removed by simply unscrewing two fastening screws, shortening maintenance time from 15 minutes in the traditional structure to less than 5 minutes, thus improving equipment utilization and production efficiency.

[0016] The integrated bending process of this utility model reduces the number of parts and manufacturing costs, while enhancing the durability of the silo. The overall structure is compact, suitable for various industrial environments, and easy to promote and use. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0018] Figure 1 This is a schematic diagram of the structure of the hopper in an embodiment of this utility model; Figure 2 This is a schematic diagram of the front structure of the hopper in an embodiment of this utility model; Figure 3 This is a schematic diagram of the end face structure of the bin body in an embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of the storage door in an embodiment of this utility model; Figure 5 This is a side view of the door structure in an embodiment of this utility model; Figure 6 This is a front structural diagram of the guide strip in an embodiment of this utility model; Figure 7 This is a side view of the guide strip in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the rear baffle in an embodiment of this utility model; Figure 9 This is a schematic diagram of the cover plate in an embodiment of this utility model; Figure 10 This is a schematic diagram of the structural relationship between the guide strip and the chamber body in an embodiment of this utility model.

[0019] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0020] The components are: 1. Bin body, 2. Bin door, 3. Guide strip, 4. Rear baffle, 5. Cover plate; 11. Rear back plate, 12. Side plate, 13. Flip plate, 14. Groove, 15. Fixing plate, 151. Threaded hole, 16. Baffle fixing hole, 17. Guide strip fixing hole, 18. Cover plate fixing hole; 21. Flanged edge, 31. Outer side plate, 32. Front baffle, 33. Guide strip mounting hole; 41. Rear baffle mounting hole; 51. Top cover plate, 52. Side panel, 53. Rear panel. Detailed Implementation

[0021] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0022] Example 1 In a typical embodiment of this utility model, refer to Figure 1 As shown, a closed testing chamber includes a chamber body 1, a chamber door 2, a guide strip 3, a rear baffle 4, and a cover plate 5.

[0023] The main body of the testing chamber is chamber body 1, which is formed by bending a single metal plate, resulting in a U-shaped cross-section. Figure 1 As shown.

[0024] In practical applications, the silo 1 needs to be arranged vertically, with a U-shaped cross-section. Its structure includes a back panel and side panels 12 on the left and right sides of the back panel 11. The front edges of the two sets of side panels 12 are vertically folded inward to form flaps 13, as shown below. Figure 2 As shown.

[0025] A groove 14 is provided in the middle of the bottom of the rear panel 11. Figure 2 The rear back plate 11 extends vertically, and the rear back plate 11 at the bottom of the groove 14 is vertically connected to the fixing plate 15. The fixing plate 15 extends to the rear side of the rear back plate and is provided with two threaded holes 151, through which the compartment is installed.

[0026] The chamber 1 is connected to an external bracket or work platform via threaded holes 151. The chamber is secured to the bracket by fastening screws passing through threaded holes 151. Simply removing these two screws allows for quick disassembly of the entire inspection chamber, facilitating in-depth maintenance, cleaning, or replacement of the industrial camera. This simplified assembly and disassembly process typically takes only minutes, significantly saving time and labor costs.

[0027] like Figure 1 and Figure 2As shown, there are four baffle fixing holes 16 on each side of the back panel, arranged at equal intervals, and located on both sides of the groove.

[0028] It also includes a rear baffle 4, which is a plate-shaped structure. The rear baffle 4 has corresponding rear baffle mounting holes 41 on both sides. The rear baffle mounting holes 41 are used to cooperate with the baffle fixing holes 16 and the fasteners to install the rear baffle on the front side of the rear back panel 11. The rear baffle 4 closes the groove and blocks the light.

[0029] In this embodiment, the bottom end of the rear baffle 4 is flush with the bottom end of the rear back plate 11, and the height of the rear baffle 4 is not less than the height of the groove 14.

[0030] It also includes two sets of guide strips 3, which are L-shaped plates with a shape similar to that of angle steel, including an outer side plate 31 and a front baffle 32 that are vertically connected.

[0031] The outer side plate 31 has guide strip mounting holes 33 along its length direction, such as... Figure 6 As shown, five guide strip mounting holes 33 are evenly distributed on the outer side plate 31, while no holes are provided on the front baffle 32.

[0032] A guide strip fixing hole 17 is provided on the front side near the side panel, such as Figure 1 As shown, the guide strip fixing hole 17 is used to connect with the guide strip mounting hole 33 on the outer side plate, so that the outer side plate 31 is installed on the outer side of the front side of the side plate 12, thereby making the front baffle 32 located in front of the flap 13 and parallel to the flap 13. There is a set distance between the flap 13 and the front baffle 32, thereby forming a sliding space for the compartment door 2. Figure 10 As shown.

[0033] It is understandable that the height of the guide strip 3 is equal to the height of the side plate 12, and the distance from the guide strip mounting hole 33 to the front side of the outer side plate 31 is greater than the distance from the guide strip fixing hole 17 to the front side of the side plate 12, so that there is a set distance between the front baffle and the flange, forming the sliding space of the compartment door 2.

[0034] like Figure 1 As shown, the top of the back panel 11 and the two side panels 12 are provided with cover plate fixing holes 18 for fixing to the cover plate 5.

[0035] Cover plate 5 can be fastened to the top of compartment 1, such as Figure 9 As shown, the cover plate 5 includes a rectangular top cover plate 51, and the rear side and the left and right sides of the top cover plate are vertically connected to the surrounding plates, namely the rear surrounding plate 53 at the rear side and the side surrounding plates 52 at the left and right sides, respectively. No surrounding plate is provided at the front side of the cover plate.

[0036] The side panel 52 and the rear panel 53 are provided with cover plate mounting holes, which are used to fix the cover plate on the top of the hopper 1 by cooperating with the corresponding cover plate fixing holes through the fasteners, so that the cover plate can seal the top of the hopper 1.

[0037] It is understandable that the length of the side panel 52 is less than the side length of the top cover 51, such as... Figure 9 As shown, this is to ensure that the front end of the side panel 52 does not interfere with the guide strip.

[0038] like Figure 4 and Figure 5 As shown, the main body of the door is a rectangular plate structure. The top of the door has a rearward-facing flange, and the two sides of the door can be inserted downward into the sliding space to achieve a pull-out fit with the compartment body. A pull ring (not shown in the figure) is located in the middle of the top of the flange. The door can be pulled out by pulling the ring, and the door can be pulled up to open it.

[0039] Understandably, after the door is fully inserted into the sliding space, the flange 21 is supported by the front side of the top cover plate 51, and the top of the door is located on the front side of the top cover plate. The flange at the top of the door is set perpendicular to the door, allowing it to be supported by the front side of the top cover plate 51. In its natural state, the door 2 is inserted into the sliding space formed by the body 1 and the guide strip 3. When it is necessary to perform parameter adjustment, focus adjustment, or calibration operations on the industrial camera, the door 2 can be pulled upwards directly using the pull ring to perform the subsequent adjustment work. There is no need to disassemble the entire body. The pull-out design ensures ease of operation.

[0040] It is understood that the fasteners in this embodiment are screws and nuts, and the corresponding mounting holes and fixing holes can be set as through holes. It is understood that at least one through hole can be opened on the chamber body to lead out the corresponding wires. After the detection chamber is arranged, a sealing element can be set at the through hole to block the light source.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A closed testing chamber, characterized in that, include: The silo body is formed by bending a single sheet of material, resulting in a U-shaped cross-section. The silo body includes a back panel and side panels on both sides of the back panel. The front edge of the side panels is turned inward to form a flap. The cover plate is fastened to the top of the silo. Two sets of guide strips are L-shaped plates, including an outer side plate and a front baffle connected to each other. The outer side plate is installed on the outside of the side plate, so that the front baffle is located in front of the flap and parallel to the flap, and a sliding space is formed between the flap and the front baffle. The door has a flange at the top, and the two sides of the door can be inserted downward into the sliding space to achieve a pull-out fit with the compartment body. After the door is fully inserted into the sliding space, the flange is supported by the front side of the cover plate.

2. The closed testing chamber according to claim 1, characterized in that, The bottom center of the back panel has a groove, and the back panel at the bottom of the groove is vertically connected to a fixing plate. The fixing plate extends to the rear side of the back panel and has two threaded holes, through which the compartment is installed.

3. The closed testing chamber according to claim 1, characterized in that, The back panel has baffle fixing holes on both sides; it also includes a rear baffle, with corresponding rear baffle mounting holes on both sides for cooperating with the baffle fixing holes and fasteners to close the groove.

4. The closed testing chamber according to claim 3, characterized in that, The bottom end of the rear baffle is flush with the bottom end of the rear back panel, and the height of the rear baffle is not less than the height of the groove.

5. A closed testing chamber according to claim 1, characterized in that, A guide strip fixing hole is provided near the front side of the side plate, which is used to connect with the guide strip mounting hole provided on the outer side plate.

6. A closed testing chamber according to claim 5, characterized in that, The height of the guide strip is equal to the height of the side plate, and the distance from the guide strip mounting hole to the front side of the outer side plate is greater than the distance from the guide strip fixing hole to the front side of the side plate, so that there is a set distance between the front baffle and the flange.

7. A closed testing chamber according to claim 1, characterized in that, The top of the rear panel and the two side panels are provided with cover plate fixing holes for fixed connection with the cover plate.

8. A closed testing chamber according to claim 7, characterized in that, The cover plate includes a top cover plate, and the rear side and both sides of the top cover plate are vertically connected to the surrounding plate. The surrounding plate is provided with cover plate mounting holes for mating with the cover plate fixing holes through fasteners.

9. A closed testing chamber according to claim 8, characterized in that, The top of the door is located on the front side of the top cover plate, and the flange at the top of the door is set perpendicular to the door so that the flange can be supported by the front side of the top cover plate.

10. A closed testing chamber according to claim 9, characterized in that, A pull ring is provided at the middle of the top of the flange, which can be used to pull the compartment door out.

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