Valve detection device

Abstract

The application relates to a valve detection device, which comprises a main body, the inside of which is provided with a workbench; a cam indexer is arranged on the workbench and is used for sequentially driving a plurality of valves, wherein the outer side of the cam indexer is sequentially provided with an upper feeding mechanism, a valve rod side surface detection mechanism, a valve head side arc surface detection mechanism and a lower feeding mechanism; the upper feeding mechanism is used for placing valves on the cam indexer; the valve rod side surface detection mechanism is used for detecting the rod side surface of the valve; the valve head side arc surface detection mechanism is used for detecting the head side arc surface of the valve; and the lower feeding mechanism is used for taking off the valves after detection. The valve automatic detection device is arranged to comprehensively detect the head and the rod of the valve, so that the missed detection and the wrong detection caused by human factors are avoided.

Description

Technical Field

[0001] This application relates to the field of valve testing, and more particularly to a valve testing device. Background Technology

[0002] As a key component in engine operation, the valve is specifically responsible for introducing air into the engine and expelling combustion gases. Its quality has a significant impact on engine performance and lifespan. Specifically, the valve mainly consists of the valve head and the valve stem. The valve head not only needs to withstand high temperatures but also needs to withstand gas pressure, the force of the valve spring, and the inertial force of the transmission components. The valve stem, as the valve's motion guide, ensures the valve's linear reciprocating motion and allows for accurate contact between the valve and the valve seat or valve seat ring. Therefore, the symmetry of the valve head, the straightness of the valve stem, and the smoothness of the overall valve surface have a significant impact on whether the valve can function properly.

[0003] During the valve manufacturing process, testing is required to ensure the quality of the finished valves. Currently, the commonly used testing method is manual visual inspection. However, due to human factors, operators are prone to missed or incorrect inspections, making the test results uncontrollable and labor costs high. Summary of the Invention

[0004] In view of this, this application proposes a valve detection device to solve the above problems.

[0005] According to one aspect of this application, a valve detection device is provided, comprising:

[0006] The main body has a worktable inside;

[0007] A cam indexer, mounted on the worktable, is used to sequentially drive several valves. The cam indexer is equipped with:

[0008] The feeding mechanism is used to place the valve to the cam indexer;

[0009] A valve stem side detection mechanism is used to detect the side of the valve stem.

[0010] A valve head side arc surface detection mechanism is used to detect the valve head side arc surface;

[0011] A feeding mechanism for removing the valve after testing.

[0012] As an optional embodiment of this application, the upper part of the cam indexer may be provided with a rotating indexing disk;

[0013] The rotating indexing plate has several positioning fixtures evenly distributed around its circumference;

[0014] The positioning fixture passes through the rotating indexing plate, with its bottom located below the rotating indexing plate.

[0015] As an optional embodiment of this application, the valve stem side detection mechanism may optionally include:

[0016] The first rotary clamping mechanism is located below the rotary indexing plate and is used to clamp and rotate the bottom of the positioning fixture;

[0017] The first lifting mechanism is fixed on the workbench and extends to the top of the rotating indexing plate on one side, and is used to fix the valve stem end.

[0018] The first detector is located on one side of the first lifting mechanism and is used to scan and detect the upper side of the valve stem.

[0019] The second detector is coaxially arranged with the first detector and located below the first detector, and is used to scan and detect the lower side of the valve stem.

[0020] As an optional embodiment of this application, the first rotary clamping mechanism may optionally include:

[0021] A first rotary motor is fixed on the table surface of the worktable and is used to drive the valve to rotate and scan the valve stem.

[0022] The first clamping block is symmetrically disposed on the top of the first rotary motor and is used to clamp the bottom of the positioning fixture when detecting the valve stem.

[0023] As an optional implementation of this application, the first lifting mechanism may optionally include:

[0024] The first lifting support is fixedly mounted on the workbench;

[0025] A slider is provided on the side of the lifting bracket near the cam indexer and moves up and down relative to the lifting bracket;

[0026] A fixing element is fixed to the slider on the side near the cam indexer and extends to the upper end of the cam indexer to fix the valve stem end.

[0027] As an optional implementation of this application, the valve head side arc surface detection may include:

[0028] The second lifting mechanism is fixed on the table surface of the workbench and is used to move the valve up and down.

[0029] The second rotary clamping mechanism is fixed to the side of the second lifting mechanism near the cam indexer. During the upward movement of the second lifting mechanism, it clamps the valve stem end. When the valve head is disengaged from the positioning fixture, it drives the valve to rotate.

[0030] The third detector is located on one side of the second rotary clamping mechanism and forms a preset angle with the table surface of the worktable, and is used to scan and detect one side of the valve head.

[0031] The fourth detector, symmetrically arranged with the third detector, is used to scan and detect the other side of the valve head.

[0032] As an optional embodiment of this application, the second lifting mechanism may optionally include:

[0033] The second lifting bracket is fixed to the workbench surface;

[0034] A sliding component is located on the upper part of the second lifting bracket near the cam indexer, and moves up and down relative to the second lifting bracket.

[0035] As an optional embodiment of this application, the second rotary clamping mechanism may optionally include:

[0036] The second rotary motor is equipped with a protective outer casing.

[0037] A concentric guide sleeve is provided at the bottom end of the protective shell, and the second rotary motor extends into the interior of the concentric guide sleeve;

[0038] The second clamping block is located inside the concentric guide sleeve and is used to clamp and fix the valve stem end when the valve head is being tested.

[0039] As an optional embodiment of this application, the main unit may optionally be provided with a display screen and control buttons on its exterior.

[0040] The display screen and the control buttons are electrically connected to the feeding mechanism, the valve stem side detection mechanism, the valve head side arc surface detection mechanism, and the unloading mechanism.

[0041] As an optional implementation of this application, the bottom of the main body may be provided with a number of casters.

[0042] The beneficial effects of this application are:

[0043] By incorporating a valve inspection device, comprehensive valve inspection is performed, avoiding missed or incorrect inspections caused by human factors. Specifically, a cam indexer is installed on the worktable inside the main unit, which automatically rotates to sequentially inspect several valves. A loading mechanism, a valve stem side inspection mechanism, a valve head side arc surface inspection mechanism, and a unloading mechanism are sequentially arranged at intervals around the outer circumference of the cam indexer. After the loading mechanism places the valve onto the cam indexer, the cam indexer automatically rotates, rotating the valve to be inspected under the valve stem side inspection mechanism and the valve head side arc surface inspection mechanism for stem scanning. After scanning, the cam indexer continues to rotate, placing the valve to be inspected under the valve head side arc surface inspection mechanism, which inspects the valve head. After both inspections are completed, the cam indexer rotates the valve to the unloading mechanism, which removes the valve from the cam indexer, thus completing the valve inspection. The cam indexer rotates automatically, sequentially driving several valves in a cyclical manner, repeating the above-mentioned testing process. Both the valve stem side inspection mechanism and the valve head side arc surface inspection mechanism determine the overall quality of the valve based on the stability of the feedback signal from the detection light. This automatic valve testing device effectively prevents missed or incorrect inspections caused by human factors during manual visual inspection, resulting in more reliable test results.

[0044] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0045] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0046] Figure 1 A top view of the valve detection device according to an embodiment of this application is shown;

[0047] Figure 2 This is a front view of the valve detection device according to an embodiment of this application;

[0048] Figure 3 A side view of a valve detection device according to an embodiment of this application is shown. Detailed Implementation

[0049] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0050] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application or to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0051] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0052] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0053] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0054] like Figure 1 , Figure 2 and Figure 3 As shown, the valve detection device includes:

[0055] The main body has a worktable 100 inside;

[0056] A cam indexer 200, mounted on the worktable 100, is used to sequentially drive several valves. The outer circumferential surface of the cam indexer 200 is provided with:

[0057] The feeding mechanism 300 is used to place the valve to the cam indexer 200;

[0058] Valve stem side detection mechanism 400, used to detect the side of the valve stem;

[0059] Valve head side arc surface detection mechanism 500, used to detect the valve head side arc surface;

[0060] The unloading mechanism 600 is used to remove the valves that have completed testing.

[0061] In this embodiment, a cam indexer 200 is provided on the worktable 100 inside the main body. The cam indexer 200 automatically rotates to sequentially drive several valves to detect the head and stem. Specifically, a feeding mechanism 300, a valve stem side detection mechanism 400, a valve head side arc surface detection mechanism 500, and a discharging mechanism 600 are sequentially and spaced apart on the outer circumference of the cam indexer 200. In this embodiment, a controller is provided to control the feeding mechanism 300, the valve stem side detection mechanism 400, the valve head side arc surface detection mechanism 500, and the discharging mechanism to cooperate with each other to achieve the purpose of automatic valve detection. Specifically, the valves to be inspected are sequentially placed onto the rotating cam indexer 200 via the feeding mechanism 300. The cam indexer 200 then rotates the valves to the valve stem side detection mechanism 400 for stem scanning detection. The valve stem side detection mechanism 400 sends detection light to the valve stem, and the stability of the reflection spectrum of the valve stem determines whether the valve stem meets the requirements. Next, the cam indexer 200 rotates the valve to the valve head side arc surface detection mechanism 500, which inspects the valve head. Specifically, the valve head side arc surface detection mechanism 500 pulls the valve off the cam indexer 200 by enclosing the valve stem end, thus achieving the purpose of valve head scanning detection. The feedback signal from the valve head determines whether the valve head meets the requirements. After two tests, the valves are rotated from the cam indexer 200 to the unloading mechanism 600, where the unloading mechanism 600 removes the tested valves from the cam indexer 200, thus completing all valve testing. It should be noted that by automatically rotating the cam indexer 200 and sequentially driving several valves in a cycle, repeating the above testing process, the testing efficiency is higher and the results are more accurate.

[0062] As an optional embodiment of this application, the cam indexer 200 may optionally have a rotating indexing disk 210 on its upper part;

[0063] The rotating indexing plate 210 has several positioning fixtures 220 evenly distributed around its circumference;

[0064] The positioning fixture 220 passes through the rotating indexing plate 210, and its bottom is located below the rotating indexing plate 210.

[0065] In this embodiment, the rotating indexing disk 210 on the upper part of the cam indexer 200 rotates automatically to sequentially rotate several valves to be inspected for head and stem inspection. Specifically, the rotating indexing disk 210 is circumferentially spaced with several positioning clamps 220, and the corresponding valve heads to be inspected are inserted into the positioning clamps 220. The positioning clamps 220 fix the valves in place during the rotation of the rotating indexing disk 210 to prevent them from falling off and to ensure that the inspection is carried out normally.

[0066] As an optional embodiment of this application, the valve stem side detection mechanism 400 may optionally include:

[0067] The first rotary clamping mechanism 410 is located below the rotary indexing plate 210 and is used to clamp and rotate the bottom of the positioning fixture 220.

[0068] The first lifting mechanism 420 is fixed on the table surface of the workbench 100 and extends to the top of the rotating indexing plate 210 on one side for fixing the valve stem end.

[0069] The first detector 430 is located on one side of the first lifting mechanism 420 and is used to scan and detect the upper side of the valve stem.

[0070] The second detector 440 is coaxially arranged with the first detector 430 and located below the first detector 430, and is used to scan and detect the lower side of the valve stem.

[0071] In this embodiment, the first rotary clamping mechanism 410 is located below the rotary indexing plate 210. When the valve to be inspected rotates to above the first rotary clamping mechanism 410, the first rotary clamping mechanism 410 clamps and fixes the bottom of the positioning fixture 220 corresponding to the valve to be inspected. At this time, the first detector 430 and the second detector 440 emit detection light to the upper and lower sides of the valve stem, respectively. It should be noted that the detection light can be infrared light or other light that can determine whether the valve meets the requirements based on the reflection spectrum. Specifically, the first rotary clamping mechanism 410 drives the valve to rotate by rotating the positioning fixture 220, thereby achieving the purpose of scanning the valve stem in all directions and preventing missed detections.

[0072] As an optional embodiment of this application, the first rotary clamping mechanism 410 may optionally include:

[0073] The first rotary motor is fixed on the table surface of the worktable 100 and is used to drive the valve to rotate and scan the valve stem.

[0074] The first clamping block is symmetrically arranged on the top of the first rotary motor and is used to clamp the bottom of the positioning fixture 220 when detecting the valve stem.

[0075] In this embodiment, the first rotary motor is located on the table surface of the workbench 100, and the first clamping block is symmetrically arranged on the top of the first rotary motor. It should be noted that the first clamping block has a V-shaped structure. When the valve to be inspected is rotated to the top of the first rotary motor, the bottom of the corresponding positioning fixture 220 is engaged inside the V-shaped first clamping block, thereby achieving the purpose of rotating the valve to be inspected by the first rotary motor for further comprehensive inspection.

[0076] As an optional embodiment of this application, the first lifting mechanism 420 may optionally include:

[0077] The first lifting support is fixed on the workbench 100;

[0078] The slider is located on the side of the lifting bracket near the cam indexer 200 and moves up and down relative to the lifting bracket.

[0079] A fixing element is fixed to the side of the slider near the cam indexer 200 and extends to the upper end of the cam indexer 200 to fix the valve stem end.

[0080] In this embodiment, the first lifting bracket is screwed and fixed to the table surface of the workbench 100. A slider is fitted onto the side of the first lifting bracket near the cam indexer 200, and a fixing member is provided on the side of the slider near the cam indexer 200. It should be noted that the bottom of the fixing member has a hollow structure and is positioned above the rotating indexing plate 210. When the valve to be inspected rotates above the first rotating clamping mechanism 410, the outer side of the valve stem end is enclosed by the hollow structure at the bottom of the fixing member, and the valve stem end can rotate relative to the fixing member. By setting the fixing member to assist the first rotating clamping mechanism 410, it is further ensured that the valve position will not shift during rotation, resulting in more accurate test results.

[0081] As an optional embodiment of this application, the valve head side arc surface detection mechanism 500 optionally includes:

[0082] The second lifting mechanism 520 is fixed on the table surface of the workbench 100 and is used to move the valve up and down.

[0083] The second rotary clamping mechanism 510 is fixed on the side of the second lifting mechanism 520 near the cam indexer 200. During the upward movement of the second lifting mechanism 520, it clamps the valve stem end. When the valve head is disengaged from the positioning clamp 220, it drives the valve to rotate.

[0084] The third detector 530 is located on one side of the second rotary clamping mechanism 510 and forms a preset angle with the table surface of the worktable 100. It is used to scan and detect one side of the valve head.

[0085] The fourth detector 540, symmetrically arranged with the third detector 530, is used to scan the other side of the valve head.

[0086] In this embodiment, a second rotary clamping mechanism 510 is provided on the upper part of the second lifting mechanism 520 near the rotary indexing plate 210. After the stem of the valve to be inspected is inspected, the valve to be inspected is rotated to the valve head side arc surface inspection mechanism 500 by the rotary indexing plate 210 for valve head inspection. Specifically, the second lifting mechanism 520 descends to the second rotary clamping mechanism 510 to clamp and fix the stem end of the valve to be inspected, and then the second lifting mechanism 520 rises to disengage the valve head from the positioning fixture 220. Subsequently, the second rotary clamping mechanism 510 rotates, so that the valve head is fully inspected during the rotation process. It should be noted that the third detector 530 and the fourth detector 540 are symmetrically arranged on both sides of the second rotary clamping mechanism 510. The third detector 530 and the fourth detector 540 are both at a preset angle to the table surface of the worktable 100. The specific angle is sufficient to achieve full scanning during the inspection of the valve head. By the cooperation of the third detector 530 and the fourth detector 540 symmetrically arranged on both sides, the requirement of full inspection of the valve head is effectively met. Once the head inspection is complete, the second lifting mechanism 520 resets to await the next inspection.

[0087] As an optional embodiment of this application, the second lifting mechanism 520 may optionally include:

[0088] The second lifting support is fixed on the table surface of the workbench 100;

[0089] The sliding component is located on the upper part of the second lifting bracket near the cam indexer 200 and moves up and down relative to the second lifting bracket.

[0090] In this embodiment, the second lifting bracket is screwed and fixed on the table surface of the workbench 100. The second lifting bracket is provided with a sliding component on the side near the cam indexer 200. The sliding component includes a fixed plate and a sliding plate. The fixed plate is screwed and fixed on the upper part of the second lifting bracket. The sliding plate moves up and down relative to the fixed plate, thereby driving the second rotary clamping mechanism 510 to move up and down, so as to clamp and rotate the valve stem to be inspected and fully scan the valve head.

[0091] As an optional embodiment of this application, the second rotary clamping mechanism 510 may optionally include:

[0092] The second rotary motor is equipped with a protective housing 511.

[0093] Concentric guide sleeve 512 is located at the bottom of the protective housing, and the second rotary motor extends into the interior of the concentric guide sleeve;

[0094] The second clamping block, located inside the concentric guide sleeve, is used to clamp and fix the valve stem end when testing the valve head.

[0095] In this embodiment, the second rotary motor and the second clamping block cooperate to rotate the valve during the valve head inspection process. Specifically, the second clamping block has a V-shaped structure. When the valve to be inspected rotates to below the second rotary clamping mechanism 510, the valve stem end is fixed inside the V-shaped second clamping block. This allows the valve head to be disengaged from the self-positioning fixture 220 during the upward movement of the second lifting mechanism 520 for head inspection scanning. It should be noted that after the valve head inspection is completed, the second lifting mechanism 520 descends, placing the valve inside the positioning fixture 220. The rotating indexing plate 210 then rotates the valve to the unloading mechanism 600, which removes the inspected valve from the self-positioning fixture 220.

[0096] As an optional implementation of this application, the main unit may optionally include a display screen and control buttons on its exterior.

[0097] The display screen and control buttons are electrically connected to the feeding mechanism 300, the valve stem side detection mechanism 400, the valve head side arc surface detection mechanism 500, and the unloading mechanism 600.

[0098] In this embodiment, the specific test results are displayed on a screen outside the main unit. Control buttons are used to inspect the loading mechanism 300, valve stem side inspection mechanism 400, valve head side arc surface inspection mechanism 500, and unloading mechanism 600 within the main unit. This effectively achieves automatic, all-around inspection of the valve head and stem, saving labor costs. It should be noted that both the loading mechanism 300 and the unloading mechanism 600 can utilize robots for valve placement and removal. Through robot information interconnection, orderly placement and retrieval of valve products are achieved without human intervention, resulting in higher inspection efficiency and more accurate test results.

[0099] As an optional implementation of this application, the bottom of the main body may be provided with a number of casters.

[0100] In this embodiment, by setting a movable wheel 110 at the bottom of the main body, the automatic valve detection device can be moved at any time, meeting the needs of different usage scenarios and making it more convenient.

[0101] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A valve detection device, characterized in that, include: The main body has a worktable inside; A cam indexer, mounted on the worktable, is used to sequentially drive several valves. The upper part of the cam indexer is equipped with a rotating indexing disc. The positioning fixture passes through the rotating indexing plate, with its bottom located below the rotating indexing plate; The outer circumferential surface of the cam indexer is provided with: The feeding mechanism is used to place the valve to the cam indexer; A valve stem side detection mechanism is used to detect the side of the valve stem. The valve stem side detection mechanism includes: A first rotary clamping mechanism is located below the rotary indexing plate and is used to clamp and rotate the bottom of the positioning fixture. The first rotary clamping mechanism includes a first rotary motor and a first clamping block, and the first clamping block has a V-shaped structure. The first lifting mechanism is fixed on the workbench and extends to the top of the rotating indexing plate on one side, and is used to fix the valve stem end. The first detector is located on one side of the first lifting mechanism and is used to scan and detect the upper side of the valve stem. The second detector is coaxially arranged with the first detector and located below the first detector, and is used to scan and detect the lower side of the valve stem. A valve head side arc surface detection mechanism is used to detect the valve head side arc surface; The valve head side arc surface detection mechanism includes a second lifting mechanism and a second rotating clamping mechanism. When the second lifting mechanism rises, it drives the second rotating clamping mechanism to clamp the valve stem end, so that the valve head is disengaged from the positioning fixture. The second rotating clamping mechanism drives the valve to rotate. A feeding mechanism for removing the valve after testing.

2. The valve detection device according to claim 1, characterized in that, The first rotary clamping mechanism includes: A first rotary motor is fixed on the table surface of the worktable and is used to drive the valve to rotate and scan the valve stem. The first clamping block is symmetrically disposed on the top of the first rotary motor and is used to clamp the bottom of the positioning fixture when detecting the valve stem.

3. The valve detection device according to claim 1, characterized in that, The first lifting mechanism includes: The first lifting support is fixedly mounted on the workbench; A slider is provided on the side of the lifting bracket near the cam indexer and moves up and down relative to the lifting bracket; A fixing element is fixed to the slider on the side near the cam indexer and extends to the upper end of the cam indexer to fix the valve stem end.

4. The valve detection device according to claim 1, characterized in that, The valve head side arc surface detection mechanism includes: The second lifting mechanism is fixed on the table surface of the workbench and is used to move the valve up and down. The second rotary clamping mechanism is fixed to the side of the second lifting mechanism near the cam indexer. During the upward movement of the second lifting mechanism, it clamps the valve stem end. When the valve head is disengaged from the positioning fixture, it drives the valve to rotate. The third detector is located on one side of the second rotary clamping mechanism and forms a preset angle with the table surface of the worktable, and is used to scan and detect one side of the valve head. The fourth detector, symmetrically arranged with the third detector, is used to scan and detect the other side of the valve head.

5. The valve detection device according to claim 4, characterized in that, The second lifting mechanism includes: The second lifting bracket is fixed to the workbench surface; A sliding component is located on the upper part of the second lifting bracket near the cam indexer, and moves up and down relative to the second lifting bracket.

6. The valve detection device according to claim 5, characterized in that, The second rotary clamping mechanism includes: The second rotary motor is equipped with a protective outer casing. A concentric guide sleeve is provided at the bottom end of the protective shell, and the second rotary motor extends into the interior of the concentric guide sleeve; The second clamping block is located inside the concentric guide sleeve and is used to clamp and fix the valve stem end when the valve head is being tested.

7. The valve detection device according to claim 1, characterized in that, The main unit is equipped with a display screen and control buttons on its exterior. The display screen and the control buttons are electrically connected to the feeding mechanism, the valve stem side detection mechanism, the valve head side arc surface detection mechanism, and the unloading mechanism.

8. The valve detection device according to claim 1, characterized in that, The main body is equipped with several wheels at its bottom.

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