A detection device

Abstract

The utility model relates to the technical field of compressor production discloses a detection device, including mounting bracket, prevent high baffle, detection datum board and prevent low baffle piece, prevent high baffle is connected in the mounting bracket, detection datum board is equipped in the below of prevent high baffle, detection datum board is equipped with the guide side, the guide side is used for guiding the workpiece in the height range of qualified tolerance to pass through detection channel smoothly, the guide side is inclined plane structure or cambered surface structure, prevent low baffle piece is connected in detection datum board and is located the below of detection datum board, and prevent low baffle piece is used for preventing the workpiece to pass through detection channel when the height of workpiece is below lower limit tolerance, through the cooperation and matching of prevent high baffle, prevent low baffle piece and the detection datum board with the guide side, can carry out full -automatic, full -detection type's prevent stupid judgement to workpiece height size, and size judgement precision is high, and the detection efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of compressor manufacturing technology, and in particular to a testing device. Background Technology

[0002] In the production of sheet metal housing products, exhaust pipes are usually fixed to the housing by welding. To ensure product assembly accuracy and subsequent performance, the outer height of the exhaust pipe after welding must be strictly controlled within a small tolerance range. Currently, the industry generally uses a special gauge in conjunction with manual visual inspection to check this height dimension. The existing inspection method is manual visual inspection using a handheld special gauge. Due to the small tolerance range of the exhaust pipe height and the relatively high visual distance in actual inspection, the accuracy of dimension judgment is low. At the same time, long-term manual visual inspection is prone to visual fatigue, which can lead to misjudgment and the outflow of defective products. In addition, the inspection efficiency of manual visual inspection is low. Utility Model Content

[0003] Aimed at solving at least one of the technical problems existing in the prior art, this utility model aims to provide a detection device that can perform fully automatic, full-inspection, and error-proof judgment of the height dimension of a workpiece, with high dimension judgment accuracy and high detection efficiency.

[0004] To achieve the above objectives, this utility model provides a detection device having mutually perpendicular length, width, and height directions. The detection device includes a mounting frame, a height-prevention baffle, a detection reference plate, and a height-prevention component. The height-prevention baffle is connected to the mounting frame and is used to block the workpiece from passing through the detection channel when its height exceeds the upper limit tolerance. The detection reference plate is located below the height-prevention baffle and has a guide side. The guide side is used to guide workpieces with heights within the acceptable tolerance range to pass smoothly through the detection channel defined between the lower surface of the height-prevention baffle and the upper surface of the conveying mechanism. The guide side has an inclined or arc-shaped structure. The height-prevention component is connected to the detection reference plate and located below it. The height-prevention component is used to block the workpiece from passing through the detection channel when its height is below the lower limit tolerance.

[0005] In some embodiments, the anti-lowering component includes a first side plate, an anti-lowering baffle, and a second side plate. The first side plate is connected to the bottom of the detection reference plate, the anti-lowering baffle is connected to one end of the first side plate in the length direction, and the second side plate is connected to the end of the anti-lowering baffle away from the first side plate in the width direction. Along the width direction, the second side plate is opposite to and spaced apart from the first side plate, and the first side plate, the anti-lowering baffle, and the second side plate together form a hook groove.

[0006] In some embodiments, the length dimension of the first side plate is greater than the length dimension of the second side plate along the length direction.

[0007] In some embodiments, along the length direction, the end of the first side plate away from the anti-lowering baffle is provided with a guide slope.

[0008] In some embodiments, the detection device further includes an adjustment assembly comprising an adjustment block and a connecting shaft. The adjustment block is connected to the anti-high baffle and located on the side of the first side plate away from the second side plate. The adjustment block and the first side plate together form a V-shaped groove. The V-shaped groove gradually narrows along the length direction away from the anti-low baffle. The connecting shaft extends along the height direction, and the anti-low baffle is rotatably connected to the adjustment block through the connecting shaft, so that the anti-low baffle can swing relative to the adjustment block around the connecting shaft.

[0009] In some embodiments, the adjusting block is provided with a connecting slot that extends through the width direction and communicates with the V-shaped groove; the anti-lowering component further includes a connecting plate, the connecting plate being connected to the first side plate and located on the side of the first side plate opposite to the second side plate, at least a portion of the connecting plate being accommodated in the connecting slot, and the connecting plate being rotatably connected to the adjusting block via the connecting shaft.

[0010] In some embodiments, the connecting slot is open on the side of the longitudinal direction away from the anti-lowering baffle.

[0011] In some embodiments, the adjustment assembly further includes a limiting post and a return spring; the adjustment block has a limiting groove at one end in the length direction near the anti-lowering baffle, the limiting groove is connected to the V-shaped groove, one end of the limiting post in the width direction is inserted into the limiting groove, the return spring is disposed in the limiting groove and is respectively connected to the groove wall of the limiting post and the limiting groove, and the end of the limiting post in the width direction away from the return spring abuts against the first side plate.

[0012] In some embodiments, the adjusting assembly further includes a first adjusting bolt, which includes a head and a screw connected to each other; the anti-height baffle is provided with an adjusting elongated hole extending along the height direction, the adjusting block is provided with a first threaded hole, the head abuts against the side of the anti-height baffle away from the adjusting block, the screw passes through the adjusting elongated hole and is threadedly connected to the first threaded hole; along the width direction, the size of the adjusting elongated hole is a, and the size of the screw is b, satisfying: a > 2b.

[0013] In some embodiments, the detection device further includes a second adjusting bolt; the mounting bracket includes a mounting plate and a mounting column; the lower end of the mounting column is connected to the mounting plate; the anti-height baffle includes a baffle body and a connecting part connected to each other, the connecting part is provided with a connecting hole extending along the height direction, the mounting column passes through the connecting hole, the connecting part is provided with a second threaded hole communicating with the connecting hole, and the second adjusting bolt is threadedly connected to the second threaded hole and abuts against the mounting column to fasten the mounting column and the connecting part.

[0014] Compared with the prior art, the detection device of this utility model has the following advantages: when the workpiece moves through the detection device with the conveying mechanism, a detection channel is defined between the lower surface of the anti-height baffle and the upper surface of the conveying components of the conveying mechanism (such as conveyor belts, rollers, mesh belts, vertical conveyor chains, etc.); if the workpiece height exceeds the upper limit tolerance, the workpiece will be blocked by the anti-height baffle and cannot pass through the detection channel; if the workpiece is below the lower limit tolerance, the workpiece will be blocked by the anti-lowering baffle and cannot pass through the detection channel; only when the height of the workpiece is within the acceptable tolerance range can the workpiece pass through the detection channel under the guidance of the guide side of the detection reference plate; therefore, this utility model, through the coordinated cooperation of the anti-height baffle, the anti-lowering baffle, and the detection reference plate with the guide side, can perform fully automatic and full-inspection error-proof judgment of the workpiece height dimension, with high dimension judgment accuracy and high detection efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a detection device provided in an embodiment of the present utility model; Figure 2 This is a front view of a detection device provided in an embodiment of the present invention; Figure 3 This is a first schematic diagram of a detection device provided in this embodiment of the present invention applied to a conveying mechanism; Figure 4 This is a second schematic diagram of a detection device provided in this embodiment of the present invention applied to a conveying mechanism; Figure 5 This is a third schematic diagram of a detection device provided in this embodiment of the present invention when applied to a conveying mechanism; Figure 6 This is a top view of a detection device provided in an embodiment of the present utility model; Figure 7 This is a schematic diagram of the anti-height baffle provided in an embodiment of the present utility model; Figure 8 This is a first structural schematic diagram of the detection reference plate and the anti-lowering component provided in this embodiment of the utility model; Figure 9This is a second structural schematic diagram of the detection reference plate and the anti-lowering component provided in this embodiment of the utility model; Figure 10 This is a schematic diagram of the connection between the detection reference plate, the anti-low-angle component, and the adjustment assembly provided in this embodiment of the utility model; Figure 11 This is a top view showing the connection between the detection reference plate, the anti-lowering component, and the adjustment assembly provided in this embodiment of the utility model; Figure 12 This is a schematic diagram of the structure of the adjustment component provided in an embodiment of the present invention; Figure 13 This is a cross-sectional view of the adjustment component provided in an embodiment of the present utility model; Figure 14 This is a schematic diagram of the first adjusting bolt provided in an embodiment of the present invention.

[0016] In the diagram, 1 is the mounting bracket; 11 is the mounting plate; and 12 is the mounting column. 2. Anti-height baffle; 21. Baffle body; 22. Connecting part; 211. Adjusting elongated hole; 212. Guide arc surface; 221. Connecting hole; 222. Second threaded hole; 3. Testing reference plate; 31. Guide side; 4. Anti-lowering component; 40. Hook groove; 41. First side plate; 42. Anti-lowering baffle; 43. Second side plate; 44. Connecting plate; 411. Guide slope; 441. First assembly hole; 442. Avoidance slope; 5. Adjusting assembly; 51. Adjusting block; 52. Connecting shaft; 54. Limiting post; 55. Return spring; 56. First adjusting bolt; 511. Connecting through groove; 512. Limiting groove; 513. First threaded hole; 514. Second assembly hole; 561. Head; 562. Screw; 6. Second adjusting bolt; 7. V-groove; 100. Conveying mechanism; 200. Detection channel; 300. Workpiece; 301. Housing; 302. Exhaust pipe; X, length direction; Y, width direction; Z, height direction. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having" and any variations thereof in the description, claims and foregoing drawings of this application are intended to cover non-exclusive inclusion.

[0023] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0024] like Figures 1 to 5 As shown, a preferred embodiment of the present invention provides a detection device having mutually perpendicular length direction X, width direction Y, and height direction Z; the detection device includes a mounting frame 1, a high-angle baffle 2, a detection reference plate 3, and a low-angle baffle 4.

[0025] The anti-height baffle 2 is connected to the mounting bracket 1. The anti-height baffle 2 is used to block the workpiece 300 from passing through the inspection channel 200 when the height of the workpiece 300 exceeds the upper limit tolerance. The inspection reference plate 3 is located below the anti-height baffle 2. The inspection reference plate 3 is provided with a guide side 31. The guide side 31 is used to guide the workpiece 300 whose height is within the acceptable tolerance range to pass smoothly through the inspection channel 200. The anti-lowering baffle 4 is connected to the inspection reference plate 3 and located below the inspection reference plate 3. The anti-lowering baffle 4 is used to block the workpiece 300 from passing through the inspection channel 200 when the height of the workpiece 300 is lower than the lower limit tolerance.

[0026] Based on this technical solution, when the workpiece 300 moves through the detection device with the conveying mechanism 100, the lower surface of the anti-height baffle 2 and the upper surface of the conveying components (such as conveyor belts, rollers, mesh belts, conveyor chains, etc.) of the conveying mechanism 100 define the detection channel 200. If the height of the workpiece 300 exceeds the upper limit tolerance, the workpiece 300 will be blocked by the anti-height baffle 2 and will not be able to pass through the detection channel 200. If the height of the workpiece 300 is lower than the lower limit tolerance, the workpiece 300 will be blocked by the anti-lowering baffle 4 and will not be able to pass through the detection channel 200. Only when the height of the workpiece 300 is within the acceptable tolerance range can the workpiece 300 pass through the detection channel 200 under the guidance of the guide side 31 of the detection reference plate 3. Therefore, through the coordinated cooperation of the anti-height baffle 2, the anti-lowering baffle 4, and the detection reference plate 3 with the guide side 31, this utility model can perform fully automatic and full-inspection error-proof judgment on the height dimension of the workpiece 300, with high dimension judgment accuracy and high detection efficiency.

[0027] The detection device provided by this utility model eliminates the risk of misjudgment caused by excessive viewing distance, small tolerance range, and operator visual fatigue, improves detection reliability, helps to achieve the goal of zero defective products leaving the market, and ensures product quality consistency.

[0028] It should be noted that although this utility model is described below in conjunction with the detection of exhaust pipe welding height, those skilled in the art should understand that this device is also applicable to other workpieces 300 with strict height tolerance requirements, such as positioning columns, flanges, brackets, etc.

[0029] The detection device provided by this utility model can be directly installed on the conveying mechanism 100 of the production line, and the detection can be completed synchronously during the normal conveying process of the workpiece 300, with high detection efficiency.

[0030] See Figures 3 to 5 In this embodiment, the workpiece 300 includes a housing 301 and an exhaust pipe 302 connected to the housing 301. Figure 3 If the height of the exhaust pipe 302 of workpiece 300 exceeds the upper limit tolerance, the exhaust pipe 302 will be blocked by the anti-height baffle 2, preventing workpiece 300 from passing through the inspection channel 200; Figure 4 In the process, the height of the exhaust pipe 302 of workpiece 300 is lower than the lower limit tolerance, and workpiece 300 is blocked by the anti-lowering component 4, causing workpiece 300 to be unable to pass through the inspection channel 200; Figure 5 When the height of the exhaust pipe 302 of the workpiece 300 is within the acceptable tolerance range, the exhaust pipe 302 of the workpiece 300 fits against the guide side 31 and can pass through the detection channel 200 under the guidance of the guide side 31 of the detection reference plate 3.

[0031] Understandably, attached Figure 4 The portion shown in dashed lines represents the outline of the exhaust pipe 302 of workpiece 300, which is not visible in this view because it is obscured by the second side plate 43.

[0032] See Figures 1 to 5 ,and Figures 7 to 10 In this embodiment, the guide side 31 has a sloping structure, and the inclination of the sloping structure guides the qualified workpiece 300 to pass smoothly through the detection channel 200.

[0033] In some other embodiments, the guide side 31 has an arc-shaped structure, which guides the qualified workpiece 300 to pass smoothly through the detection channel 200; or it has any other shape structure that can play a guiding function, such as a composite shape structure combining arc and slope.

[0034] Mounting bracket 1 can be made of metal, alloy, or high-strength engineering plastic. For example, the material of mounting bracket 1 can be selected from any one or more combinations of stainless steel, carbon steel, aluminum alloy, cast aluminum, brass, zinc alloy, polyoxymethylene (POM), polyamide (PA, nylon), polycarbonate (PC), or glass fiber reinforced plastic. Preferably, to ensure structural rigidity and long-term stability, mounting bracket 1 is made of stainless steel or aluminum alloy.

[0035] The testing reference plate 3 can be made of metal, alloy, or high-strength engineering plastic. For example, the material of the testing reference plate 3 can be selected from any one or more combinations of stainless steel, carbon steel, aluminum alloy, cast aluminum, brass, zinc alloy, polyoxymethylene (POM), polyamide (PA, nylon), polycarbonate (PC), or glass fiber reinforced plastic. Preferably, to ensure structural rigidity and long-term stability, the testing reference plate 3 is made of stainless steel or aluminum alloy.

[0036] The anti-slip member 4 can be made of metal, alloy, or high-strength engineering plastic. For example, the material of the anti-slip member 4 can be selected from any one or more combinations of stainless steel, carbon steel, aluminum alloy, cast aluminum, brass, zinc alloy, polyoxymethylene (POM), polyamide (PA, nylon), polycarbonate (PC), or glass fiber reinforced plastic. Preferably, to ensure structural rigidity and long-term stability, the anti-slip member 4 is made of stainless steel or aluminum alloy.

[0037] The detection device provided by this utility model is composed of rigid mechanical components, requiring no sensors, power supply, control system or precision measuring instruments. It has a simple structure, low manufacturing cost, stable operation and easy maintenance, and is suitable for various complex environments in industrial sites.

[0038] See Figures 1 to 5 ,and Figures 7 to 9 The anti-lowering component 4 includes a first side plate 41, an anti-lowering baffle 42, and a second side plate 43. The first side plate 41 is connected to the bottom of the detection reference plate 3. The anti-lowering baffle 42 is connected to one end of the first side plate 41 in the length direction X. The second side plate 43 is connected to the end of the anti-lowering baffle 42 in the width direction Y away from the first side plate 41. Along the width direction Y, the second side plate 43 is opposite to and spaced apart from the first side plate 41. The first side plate 41, the anti-lowering baffle 42, and the second side plate 43 together form a hook groove 40. The hook groove 40 is used to hook the workpiece 300 when the height of the workpiece 300 is lower than the lower limit tolerance, thereby preventing the workpiece 300 from passing through the detection channel 200.

[0039] When the actual height of the workpiece 300 being tested (e.g., an exhaust pipe welded to a sheet metal housing) is lower than the lower limit tolerance, the upper part of the workpiece 300 sinks relatively due to insufficient height, thus entering the hook groove 40 and being blocked by the anti-lowering baffle 42, preventing the workpiece 300 from continuing to pass through the detection channel 200; however, when the height of the workpiece 300 is within the acceptable range, the upper part of the workpiece 300 is at a higher position and will not enter the hook groove 40, allowing the workpiece 300 to pass smoothly through the detection channel 200 under the guidance of the guide side 31.

[0040] The first side plate 41, the anti-lowering baffle 42 and the second side plate 43 together form a hook groove 40. The hook groove 40 constitutes a three-sided constrained limiting cavity, which can reliably capture and restrict the workpiece 300 that is not tall enough, and prevent the workpiece 300 from falling out of the anti-lowering baffle 4 under force or vibration.

[0041] Along the length direction X, the length of the first side plate 41 is greater than the length of the second side plate 43.

[0042] Since the workpiece 300 usually enters the inspection area from the side where the first side plate 41 is located along the length direction X, the longer first side plate 41 can form a continuous and stable guiding side at the entrance end of the hook groove 40, ensuring that when the height of the workpiece 300 is lower than the lower limit tolerance, the upper part of the workpiece 300 can slide smoothly into the hook groove 40 and be reliably blocked by the anti-lowering baffle 42; while the shorter second side plate 43 is located on the exit side of the hook groove 40. The length of the second side plate 43 is appropriately shortened, which helps to avoid interference between the qualified workpiece 300 and the second side plate 43 during the process of passing through the inspection channel 200.

[0043] See Figure 1 , Figure 2 , Figure 6 and Figure 7 The detection device also includes a second adjusting bolt 6; the mounting frame 1 includes a mounting plate 11 and a mounting column 12; the lower end of the mounting column 12 is connected to the mounting plate 11; the anti-height baffle 2 includes a baffle body 21 and a connecting part 22, the connecting part 22 is provided with a connecting hole 221 that passes through along the height direction Z, the mounting column 12 passes through the connecting hole 221, the connecting part 22 is provided with a second threaded hole 222 that communicates with the connecting hole 221, the second adjusting bolt 6 is connected to the second thread and abuts against the mounting column 12, so that the mounting column 12 and the connecting part 22 are fastened and fixed.

[0044] Thus, after loosening the second adjusting bolt 6, the anti-height baffle 2 can slide freely along the mounting column 12 in the height direction Z, thereby flexibly adjusting the vertical height of the anti-height baffle 2 and the detection reference plate 3 relative to the mounting plate 11 to adapt to the detection requirements of the upper limit of the exhaust pipe height for products with different workpiece heights. After adjustment, locking the second adjusting bolt 6 can achieve reliable fixation. This connection method is not only simple in structure and convenient in operation, but also allows for rapid switching of the height reference without replacing parts, improving the versatility of the device and the flexibility of the production line. Moreover, the cooperation between the mounting column 12 and the connecting hole 221 provides guiding support, and combined with the radial locking force of the second adjusting bolt 6, it can prevent the anti-height baffle 2 from shaking, tilting or loosening during operation, ensuring long-term stability of the detection position and high repeatability.

[0045] In some embodiments, the mounting post 12 is provided with a mounting hole or mounting groove for the insertion of the second adjusting bolt 6.

[0046] It is understood that in this testing device, the height of the lower surface of the baffle body 21 is the height of the upper limit tolerance of the workpiece 300, and the height of the lower surface of the testing reference plate 3 is the height of the lower limit tolerance of the workpiece 300. The height difference between the lower surface of the baffle body 21 and the lower surface of the testing reference plate 3 in the height direction Z is the acceptable tolerance range. For example, if the standard height dimension of a workpiece 300 is c, its upper limit tolerance is c+d, and its lower limit tolerance is ce, then the height difference between the lower surface of the baffle body 21 and the lower surface of the testing reference plate 3 in the height direction Z is the acceptable tolerance range d+e. In this embodiment, d+e is 1mm. In other embodiments, d+e can also be 0.5mm, 0.8mm, 0.9mm, etc.

[0047] There are multiple mounting posts 12, multiple second adjusting bolts 6, and multiple connecting holes 221 and multiple second threaded holes 222 in the connecting part 22. Each of the multiple mounting posts 12, connecting holes 221, second threaded holes 222, and second adjusting bolts 6 corresponds to one another. Thus, the connecting part 22 of the anti-height baffle 2 is securely fixed to the mounting posts 12 through multi-point support and multi-point locking. It should be noted that the one-to-one correspondence between the multiple mounting posts 12, the multiple second adjusting bolts 6, the multiple connecting holes 221 and the multiple second threaded holes 222 means that one mounting post 12 passes through one connecting hole 221, one connecting hole 221 is connected to one second threaded hole 222, and one second adjusting bolt 6 is threadedly connected to one second threaded hole 222. One end of one second adjusting bolt 6 abuts against the part of the mounting post 12 located in the connecting hole 221, so that the mounting post 12 and the connecting part 22 are fastened and fixed.

[0048] In some embodiments, the detection device is mounted on a roller-type transmission mechanism, which includes multiple rollers for conveying the workpiece 300 and arranged at intervals along a preset direction, and limiting strips located on both sides of the rollers. The upper surface of the limiting strips is higher than the upper surface of the rollers. The baffle body 21 is provided with a guide arc surface 212, and the interval between the baffle body 21 and one of the limiting strips is configured to be less than the effective blocking width of the workpiece 300 in that area. When the height of the workpiece 300 exceeds the upper limit tolerance, its protruding part will be blocked by the anti-height baffle 2. At this time, the guide arc surface 212 guides the workpiece 300 to deflect towards the limiting strip on that side, and the baffle body 21 and the limiting strip together clamp the workpiece 300, thereby preventing the workpiece 300 from continuing to pass through the detection channel 200.

[0049] In some other embodiments, the baffle body 21 may not have a guide arc surface 212.

[0050] See Figures 7 to 10Along the length direction X, the end of the first side plate 41 away from the anti-lowering baffle 42 is provided with a guide slope 411. In this way, it can provide directional guidance for workpieces with insufficient height when they are sinking in the upper region; when such workpieces enter the detection area, the characteristic part of the workpiece sinking first contacts the guide slope 411, and under the guidance of the slope, it slides into the hook groove 40 formed by the first side plate 41, the anti-lowering baffle 42 and the second side plate 43, so that it is reliably blocked by the anti-lowering baffle, avoiding the problem that the front end of the workpiece with insufficient height is lifted, skipped or stuck at the entrance of the hook groove due to the right angle or obtuse angle of the end of the first side plate 41, thus reducing the risk of missed detection.

[0051] See Figure 1 ,and Figures 9 to 14 The detection device also includes an adjustment component 5, which includes an adjustment block 51 and a connecting shaft 52. The adjustment block 51 is connected to the anti-high baffle 2 and is located on the side of the first side plate 41 away from the second side plate 43. The adjustment block 51 and the first side plate 41 together form a V-shaped groove 7. The V-shaped groove 7 gradually narrows along the length direction X towards the direction away from the anti-low baffle 42. The connecting shaft 52 extends along the height direction Z. The anti-low baffle 4 is rotatably connected to the adjustment block 51 through the connecting shaft 52 so that the anti-low baffle 4 can swing relative to the adjustment block 51 around the connecting shaft 52.

[0052] The anti-low stop component 4 is rotatably connected to the adjusting block 51 via the connecting shaft 52, which can automatically center and guide the anti-low stop component 4 when the workpiece 300 enters the detection area.

[0053] Specifically, if the height of workpiece 300 exceeds the upper limit tolerance, the upper part of the workpiece 300 will interfere with the anti-height baffle 2 and be blocked from passing through the detection channel 200; if the height of workpiece 300 is within the acceptable range, the upper part of workpiece 300 will contact the guide side 31 of the detection reference plate 3. Since the detection reference plate 3 and the anti-lowering baffle 4 are connected, the workpiece 300 will push the detection reference plate 3 and the anti-lowering baffle 4 to rotate as a whole around the central axis of the connecting shaft 52, so that the anti-lowering baffle 4 swings as a whole around the connecting shaft 52 relative to the adjusting block 51, and the maximum width of the V-groove 7 is... As the height gradually decreases, the workpiece 300, guided by the guide side 31, passes through the detection channel 200 from the side of the second side plate 43 away from the first side plate 41. If the height of the workpiece 300 is lower than the lower limit tolerance, the top of the workpiece 300 will sink relatively due to insufficient height, causing the upper area to contact the first side plate 41 located below the detection reference plate 3. This causes the workpiece 300 to push the first side plate 41, causing the entire anti-low stop part 4 to swing around the connecting shaft 52, thereby guiding the hook groove 40 to automatically adjust to the position aligned with the workpiece 300 and blocking the workpiece 300 from passing through the detection channel 200.

[0054] The narrowing geometry of the V-groove 7 can provide guiding constraints for the reset of the anti-lowering component 4, which helps the anti-lowering component 4 to automatically return to the initial detection position and improves the consistency of the detection benchmark.

[0055] It is understandable that the adjusting block 51 and the first side plate 41 together form a V-shaped groove 7; the V-shaped groove 7 gradually narrows along the length direction X towards the direction away from the anti-low baffle 42, which means that the end of the adjusting block 51 away from the anti-low baffle 42 is in contact with the first side plate 41, and the end of the adjusting block 51 close to the anti-low baffle 42 is spaced apart from the first side plate 41.

[0056] The adjusting block 51 is provided with a connecting groove 511 that runs through the width direction Y and communicates with the V-shaped groove 7; the anti-lowering component 4 also includes a connecting plate 44, which is connected to the first side plate 41 and located on the side of the first side plate 41 away from the second side plate 43. At least a portion of the connecting plate 44 is accommodated in the connecting groove 511, and the connecting plate 44 is rotatably connected to the adjusting block 51 via a connecting shaft 52.

[0057] By accommodating at least a portion of the connecting plate 44 within the connecting slot 511 and forming a rotatable connection with the adjusting block 51 via the connecting shaft 52, the connecting plate 44 is constrained within the connecting slot 511. This allows the connecting plate 44 to swing moderately with the anti-low stop 4 during the detection process in response to the force of the workpiece 300, while also limiting the degree of freedom of the connecting plate 44 in the non-swinging direction (such as detachment or shaking), thereby improving the positional stability and repeatability of the entire anti-low stop 4.

[0058] Specifically, the connecting plate 44 is provided with a first mounting hole 441 for connecting with the connecting shaft 52, and the adjusting block 51 is provided with a second mounting hole 514 that communicates with the connecting through groove 511 and is used for connecting with the connecting shaft 52.

[0059] Preferably, the connecting slot 511 is open on the side away from the anti-fall baffle 42 in the length direction X. By making the connecting slot 511 open on the side away from the anti-fall baffle 42 in the length direction X, the connecting plate 44 has sufficient swing space when rotating around the height direction Z, avoiding the restriction of the movement stroke of the connecting plate 44 due to the closed groove of the connecting slot 511; at the same time, this open structure facilitates the insertion of the connecting plate 44 into the connecting slot 511 from the outside during assembly, simplifying installation and maintenance operations.

[0060] See Figures 9 to 14The adjustment assembly 5 also includes a limiting post 54 and a return spring 55; the adjustment block 51 is provided with a limiting groove 512 that communicates with the V-shaped groove 7, the limiting post 54 is located on the side of the connecting plate 44 in the length direction X near the anti-lowering baffle 42, one end of the limiting post 54 in the width direction Y is inserted into the limiting groove 512, the return spring 55 is provided in the limiting groove 512 and is respectively connected to the groove wall of the limiting post 54 and the limiting groove 512, and the end of the limiting post 54 in the width direction Y away from the return spring 55 abuts against the first side plate 41.

[0061] When the workpiece 300, which is too short, sinks and enters the hook groove 40, the force exerted by the workpiece 300 on the anti-low hanging component pushes the first side plate 41 to swing outward, reducing the maximum width of the V-groove 7. The first side plate 41 then compresses the limiting post 54 and the return spring 55, achieving flexible buffering, absorbing impact energy, and preventing the anti-low hanging component from deforming or being damaged due to rigid collision. After the impact, the return spring 55 releases its elastic potential energy, pushing the limiting post 54 back to the first side plate 41, increasing the maximum width of the V-groove 7. The anti-low blocking component 4 automatically resets to the initial detection position, ensuring the consistency of the benchmark for each detection and preventing misjudgment due to positional deviation. At the same time, the limiting post 54 is arranged in the wide opening area of ​​the V-groove 7 (near the side of the anti-low blocking plate 42), providing ample space and facilitating installation.

[0062] See Figures 10 to 14 The adjustment assembly 5 also includes a first adjustment bolt 56, which includes a head 561 and a screw 562 connected to each other; the anti-height baffle 2 is provided with an adjustment elongated hole 211 extending through along the height direction Z, the adjustment block 51 is provided with a first threaded hole 513, the head 561 abuts against the side of the anti-height baffle 2 away from the adjustment block 51, and the screw 562 passes through the adjustment elongated hole 211 and is threadedly connected to the first threaded hole 513.

[0063] By adjusting the screw depth of the first adjusting bolt 56 into the first threaded hole 513, the height position of the anti-height baffle 2 relative to the detection reference plate 3 can be flexibly adjusted, thereby adapting to the detection requirements of products with different height tolerance ranges for the upper limit tolerance of the workpiece 300 height, and improving the versatility and applicability of the detection device.

[0064] See Figure 6 and Figure 14 Along the width direction Y, adjust the size of the elongated hole 211 to be a, and the size of the screw 562 to be b.

[0065] In some embodiments, a > 2b. Since the position of the exhaust pipe 302 in the housing 301 and the outer diameter of the exhaust pipe 302 may differ between different products, by limiting the width dimension a > 2b of the adjusting elongated hole 211 and the screw 562, after loosening the first adjusting bolt 56, the adjusting block 51 is allowed to drive the detection reference plate 3 and the anti-low stop component 4 to make a slight lateral position adjustment along the width direction Y. After adjusting to the required position, it can be locked to fix it, thereby adjusting the lateral position of the detection reference plate 3 and the anti-low stop component 4 to adapt to the height detection requirements of different products for the workpiece 300.

[0066] In other embodiments, the width may be limited to other dimensions such as a > 2b, a > 3b, a > 4b, a > 5b, etc.

[0067] Preferably, there are multiple first adjusting bolts 56, the anti-height baffle 2 is provided with multiple adjusting elongated holes 211, and the adjusting block 51 is provided with multiple first threaded holes 513. The multiple first adjusting bolts 56, the multiple adjusting elongated holes 211, and the multiple first threaded holes 513 correspond one-to-one. In this way, the adjusting block 51 and the anti-height baffle 2 are reliably fixed by a multi-point connection.

[0068] It should be noted that the multiple first adjusting bolts 56, multiple adjusting elongated holes 211 and multiple first threaded holes 513 correspond one-to-one, meaning that one adjusting bolt passes through one adjusting elongated hole 211 and is threadedly connected to one first threaded hole 513.

[0069] In this embodiment, there are two first adjusting bolts 56, the anti-high baffle 2 is provided with two adjusting elongated holes 211, and the adjusting block 51 is provided with two first threaded holes 513.

[0070] See Figures 9 to 14 In this embodiment, the two first threaded holes 513 are the first first threaded hole 513 and the second first threaded hole 513, and the two first adjusting bolts 56 are the first first adjusting bolt 56 and the second adjusting bolt 56, respectively. The first first threaded hole 513 is connected to the connecting through groove 511. One end of the first adjusting bolt 56 passes through the first threaded hole 513 and extends into the connecting through groove 511. The second first threaded hole 513 is not connected to the connecting through groove 511. The second adjusting bolt 56 passes through the second threaded hole 222 and is spaced apart from the connecting through groove 511. The connecting plate 44 is provided with a relief slope 442. The relief slope 442 is used to avoid the first first adjusting bolt 56 during the rotation of the connecting plate 44 around the central axis of the connecting shaft 52, so that the first first adjusting bolt 56 does not interfere with the rotation of the connecting plate 44 around the central axis of the connecting shaft 52.

[0071] In some embodiments, the two first threaded holes 513 may not be connected to the connecting through groove 511, or the two first threaded holes 513 may be connected to the connecting through groove 511 and the two first adjusting bolts 56 may be spaced apart from the connecting plate 44, or the two first threaded holes 513 may be connected to the connecting through groove 511 and the connecting plate 44 may be provided with a clearance structure (such as a hole, groove, or inclined surface) to avoid the two first adjusting bolts 56, so that the first adjusting bolts 56 do not interfere with the rotation of the connecting plate 44 around the central axis of the connecting shaft 52.

[0072] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A detection device, characterized in that, include: Mounting bracket (1); Anti-height baffle (2), the anti-height baffle (2) is connected to the mounting frame (1); The detection reference plate (3) is located below the anti-high baffle (2), and the detection reference plate (3) is provided with a guide side (31). Anti-low stop component (4), which is connected to the detection reference plate (3) and located below the detection reference plate (3).

2. The detection device according to claim 1, characterized in that, The guide side (31) has a sloping or arc-shaped structure.

3. The detection device according to claim 1, characterized in that, It has mutually perpendicular length (X), width (Y), and height (Z) directions; The anti-lowering component (4) includes a first side plate (41), an anti-lowering baffle (42), and a second side plate (43). The first side plate (41) is connected to the bottom of the detection reference plate (3). The anti-lowering baffle (42) is connected to one end of the first side plate (41) in the length direction (X). The second side plate (43) is connected to one end of the anti-lowering baffle (42) in the width direction (Y) away from the first side plate (41). Along the width direction (Y), the second side plate (43) is opposite to and spaced apart from the first side plate (41). The first side plate (41), the anti-lowering baffle (42), and the second side plate (43) together form a hook groove (40).

4. The detection device according to claim 3, characterized in that, Along the length direction (X), the length dimension of the first side plate (41) is greater than the length dimension of the second side plate (43).

5. The detection device according to claim 3, characterized in that, Along the length direction (X), the end of the first side plate (41) away from the anti-lowering baffle (42) is provided with a guide slope (411).

6. The detection device according to claim 3, characterized in that, It also includes an adjustment component (5), which includes an adjustment block (51) and a connecting shaft (52). The adjustment block (51) is connected to the anti-high baffle (2) and is located on the side of the first side plate (41) away from the second side plate (43). The adjustment block (51) and the first side plate (41) together form a V-shaped groove (7). The V-shaped groove (7) gradually narrows along the length direction (X) in a direction away from the anti-low baffle (42). The connecting shaft (52) extends along the height direction (Z), and the anti-low stop (4) is rotatably connected to the adjusting block (51) through the connecting shaft (52) so that the anti-low stop (4) can swing relative to the adjusting block (51) around the connecting shaft (52).

7. The detection device according to claim 6, characterized in that, The adjusting block (51) is provided with a connecting slot (511) that runs through the width direction (Y) and communicates with the V-shaped groove (7); The anti-lowering component (4) further includes a connecting plate (44), which is connected to the first side plate (41) and located on the side of the first side plate (41) away from the second side plate (43). At least a portion of the connecting plate (44) is accommodated in the connecting through groove (511), and the connecting plate (44) is rotatably connected to the adjusting block (51) through the connecting shaft (52).

8. The detection device according to claim 7, characterized in that, The connecting slot (511) is provided with an opening on the side away from the anti-lowering baffle (42) in the length direction (X).

9. The detection device according to claim 6, characterized in that, The adjustment assembly (5) also includes a limiting post (54) and a return spring (55). The adjusting block (51) has a limiting groove (512) at one end near the anti-lowering baffle (42) in the length direction (X). The limiting groove (512) is connected to the V-shaped groove (7). One end of the limiting post (54) in the width direction (Y) is inserted into the limiting groove (512). The reset spring (55) is located in the limiting groove (512) and is connected to the groove wall of the limiting post (54) and the limiting groove (512) respectively. The end of the limiting post (54) away from the reset spring (55) in the width direction (Y) abuts against the first side plate (41).

10. The detection device according to claim 6, characterized in that, The adjustment assembly (5) further includes a first adjustment bolt (56), which includes a head (561) and a screw (562) connected to each other. The anti-height baffle (2) is provided with an adjustment elongated hole (211) that runs through the height direction (Z), the adjustment block (51) is provided with a first threaded hole (513), the head (561) abuts against the side of the anti-height baffle (2) away from the adjustment block (51), and the screw (562) passes through the adjustment elongated hole (211) and is threadedly connected to the first threaded hole (513).

11. The detection device according to claim 10, characterized in that, Along the width direction (Y), the size of the adjusting elongated hole (211) is a, and the size of the screw (562) is b, satisfying: a > 2b.

12. The detection device according to any one of claims 1-11, characterized in that, It has a height direction (Z); The detection device also includes a second adjusting bolt (6); The mounting bracket (1) includes a mounting plate (11) and a mounting post (12); the lower end of the mounting post (12) is connected to the mounting plate (11). The anti-height baffle (2) includes a baffle body (21) and a connecting part (22) connected to each other. The connecting part (22) is provided with a connecting hole (221) that passes through along the height direction (Z). The mounting post (12) passes through the connecting hole (221). The connecting part (22) is provided with a second threaded hole (222) that communicates with the connecting hole (221). The second adjusting bolt (6) is threadedly connected to the second threaded hole (222) and abuts against the mounting post (12) so that the mounting post (12) and the connecting part (22) are fastened and fixed.

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