Detection assembly, device and system for valve key and valve spring

Abstract

The invention relates to a detection assembly, device and system for a valve lock plate and a valve spring, the detection assembly for the valve lock plate and the valve spring comprises a detection rod and a plugging member, the detection rod is hollow, one end of the detection rod is an air supply end, the other end of the detection rod is a detection end, the air supply end is used for connecting an external air supply device, and the plugging member is used for plugging the detection rod. The detection end is provided with a mounting cavity, the plugging piece is arranged in the mounting cavity, and a detection cavity is formed by the plugging piece and the inner wall of the detection rod; the detection cavity is used for accommodating a valve lock plate; the tail end of the detection end of the detection rod is used for abutting against the end, with the larger diameter, of the conical valve spring. The invention further discloses a detection assembly, device and system. The detection assembly is used for detecting installation of the valve lock piece and the conical valve spring in a mode of reading air pressure values, naked eye detection of workers is not needed, the detection accuracy is improved, and misjudgment is avoided.

Description

Technical Field

[0001] The present invention relates to the field of engine assembly testing equipment, and more particularly to a testing assembly, device and system for a valve lock plate and a valve spring. Background Art

[0002] When the engine is running, the camshaft drives the rocker arm to open the valve. When the valve is closed, it relies on the elastic force of the conical valve spring. The function of the valve lock plate is to fix the valve stem and the spring upper seat together and press them on the conical valve spring, so that when the spring recovers, it drives the valve to close. During the assembly process, if the valve lock plate is not press-fitted, the valve will not close normally, causing impact damage to the piston. If the valve lock plate is installed upside down, pressed on one side, or not pressed into place, the valve lock plate will cause wear on the valve stem. Long-term reciprocating motion may even cause the valve stem to break. If the conical valve spring is installed upside down, it will cause the spring to break. Once the spring breaks, the valve will not close normally, causing impact damage to the piston.

[0003] To address the issues of incorrect valve locking plate press-fitting and upside-down conical valve spring installation, cylinder head assembly line personnel perform visual inspections of the cylinder heads. However, due to human error rates and visual fatigue, faulty valve locking plates and upside-down conical valve springs cannot be 100% detected. This prior art solution suffers from the following drawbacks: manual visual inspection of missing, reversed, one-sided, or improperly installed locking plates after press-fitting the engine locking plates is inefficient and has a high error rate. Manual visual inspection of upside-down conical valve springs is also inefficient and has a high error rate. Summary of the Invention

[0004] In order to overcome the problem in the above-mentioned prior art that manual inspection of whether the valve lock plate and conical valve spring are installed properly is prone to errors, the present invention provides a detection component, device and system for valve lock plates and valve springs, which can improve detection efficiency and reduce error rate.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a detection component for a valve lock plate and a valve spring, comprising a detection rod and a sealing piece, the detection rod being hollow, with one end being an air supply end and the other end being a detection end, the air supply end being used to connect to an external air supply device, the detection end being provided with an installation cavity, the sealing piece being arranged in the installation cavity and forming a detection cavity with the inner wall of the detection rod; the detection cavity is used to accommodate the valve lock plate; the end of the detection end of the detection rod is used to abut against the end with a larger diameter of a conical valve spring.

[0006] In the above technical solution, when performing installation inspection of the valve lock plate and the conical valve spring, the detection end of the detection rod can be inserted into the valve lock plate of the engine. If the conical valve spring is installed correctly, since the maximum outer diameter of the end with the smaller diameter of the conical valve spring is smaller than the outer diameter of the valve lock plate, the valve lock plate can be extended into the detection cavity and abut against the sealing member. At this time, the valve lock plate will block the detection rod. Therefore, when air is supplied to the detection rod, the air pressure detected by the air supply device will rise. Among them, if the valve lock plate is installed in reverse, pressed on one side or not pressed into place, the valve lock plate will become loose when the detection rod is inserted into the valve lock plate, and then air leakage will occur under the action of external air pressure. The air pressure detected by the air supply device will not rise or will not reach the target value, so that it can be judged whether the valve lock plate is installed properly. If the conical valve spring is installed upside down, the minimum outer diameter of the larger end of the conical valve spring will be larger than the valve lock plate, and the conical valve spring will abut the end of the detection end of the detection rod, preventing the valve lock plate from extending into the detection chamber. This will also cause the air pressure detected by the air supply device to not rise. In summary, if the external air supply device cannot detect the air pressure rising to a certain target value during the detection chamber set by the detection rod, it means that the valve lock plate press-fitting process is incorrect and the conical valve spring is installed upside down. The above-mentioned detection component can be connected to an external power structure, such as a mobile platform or robot, to drive the detection rod to be inserted into the engine's valve lock plate for testing. It can also be manually inserted into the engine's valve lock plate for testing. If it is a manual handheld test, only the pressure value needs to be confirmed to confirm whether the valve lock plate and conical valve spring are installed correctly, without the need for visual inspection.

[0007] Furthermore, it also includes a fixing member and an elastic member; the fixing member is provided with a sliding cavity passing through the fixing member, and the detection rod is provided with a limiting portion and an abutting portion; the detection rod is slidably connected to the fixing member and the limiting portion is located in the sliding cavity, and the limiting portion is used to limit the detection rod from being separated from the fixing member; the elastic member is installed on the outer wall of the detection rod, located between the fixing member and the abutting portion; the elastic force direction of the elastic member is consistent with the axial direction of the detection rod. The fixing member can facilitate the connection of the detection assembly with external equipment and facilitate hand-holding, while the elastic member can buffer the impact force when the detection rod is inserted into the valve spring to avoid damage to the valve spring, and the remaining force can also loosen the valve lock plate with installation problems.

[0008] Furthermore, a guide ring is mounted on the detection rod, and the guide ring is provided with a receiving groove; one end of the elastic member extends into the receiving groove and abuts against the bottom of the receiving groove, and the other end abuts against the abutting portion.

[0009] A detection device for installing a valve lock plate and a conical valve spring comprises a frame, a three-axis movable platform mounted on the frame, the detection component mounted on the output end of the three-axis movable platform, and an air supply device for supplying air to the detection component.

[0010] The engine is placed on the positioning fixture. The three-axis mobile platform moves in the X-axis, Y-axis and Z-axis directions, and can drive the detection component to move to the target position in space, so that the detection rod of the detection rod is inserted into the valve lock plate. When the detection rod moves into place, the air supply device supplies air and detects the feedback pressure value.

[0011] Furthermore, the three-axis mobile platform includes a Y-axis mobile component installed on the frame, a Z-axis mobile component installed at the output end of the Y-axis mobile component, and an X-axis mobile component installed at the output end of the Z-axis mobile component, and the fixing member is connected to the output end of the X-axis mobile component.

[0012] Furthermore, the X-axis moving assembly includes an X-axis fixed plate, a slide rail mounted on the X-axis fixed plate, a plurality of sliders mounted on the slide rail and slidably connected to the slide rail, and a linear drive member that drives the slider to slide along the slide rail; the linear drive member is connected to the slider via a connecting member, and the number of the detection components is consistent with the number of the sliders and is fixedly connected to the slider via the fixing member. When there are multiple detection components, the detection components are respectively mounted on a slider, and the sliders are all on the same slide rail. Therefore, no matter which detection component's detection rod is inserted into the valve lock plate, the movement in the Y-axis and Z-axis directions is the same, and the only difference is the difference in travel in the X-axis direction. This simplifies the control of the three-axis moving platform, and at the same time, the detection components on different sliders can be selected according to different engine specifications, reducing the slider travel and reducing the motion interference easily caused by the detection rod external conduit. The purpose of the connecting member is that, when there are multiple sliders, the linear drive members can be arranged in parallel and connected to the sliders, and motion interference can also be avoided.

[0013] Furthermore, each of the sliders is provided with a first hollow portion, and each of the X-axis fixing plates is provided with a second hollow portion corresponding to each of the first hollow portions; the conduit of the air supply device passes through the second hollow portion and the first hollow portion and is connected to the air supply end of the detection rod. The provision of the first hollow portion and the second hollow portion can make it easier to install the conduit of the air supply device. There is no need to reserve an installation position for the conduit between the slider and the fixing member. At the same time, there will be no obstructions above the conduit. When the detection rod compresses the elastic member to move, the conduit will not be squeezed. It is also easier to operate during maintenance and inspection.

[0014] Furthermore, it includes the above-mentioned detection device, a platform located below the three-axis movable platform, a workpiece positioning device installed on the platform, and a conveying device for conveying the workpiece to the workpiece positioning device.

[0015] The workpiece (engine) is transported to the workpiece positioning device via a conveying device. After the workpiece positioning device positions the engine, the three-axis mobile platform moves in the X, Y, and Z axes, driving the detection component to the target position in space, so that the detection rod of the detection rod is inserted into the valve lock plate. When the detection rod moves into position, the air supply device supplies air and detects the feedback pressure value. If the pressure value meets the standard, the three-axis mobile platform resets and the conveying device transports the engine to the next workstation. If the test fails, the three-axis mobile platform resets, an alarm signal is issued, or the engine is transported to the defective workstation.

[0016] Furthermore, the workpiece positioning device includes a lifting drive connected to the platform, a lifting platform connected to the lifting drive, a swinging platform mounted on the lifting platform, and a rotating drive that drives the swinging platform to rotate. The swinging platform is provided with a plurality of positioning members for positioning the workpiece. When the conveying device transports the engine above the lifting platform, the lifting drive drives the lifting platform to connect the positioning members on the swinging platform with the engine and lift the engine. When the engine is released from the lifting platform, the rotating member drives the swinging platform to rotate a certain angle so that the valve locking plate is vertically upward, thereby facilitating the docking of the detection rod and the valve locking plate.

[0017] Furthermore, the conveying device is installed on the platform, and the conveying device includes a first conveying platform and a second conveying platform arranged in parallel and used to convey the workpiece, and a space is formed between the first conveying platform and the second conveying platform; the workpiece positioning device is located between the first conveying platform and the second conveying platform; the platform is provided with a liftable blocking member at the output end of the conveying device; and the swing platform is provided with a stop member at the input end of the conveying device. The first conveying platform and the second conveying platform respectively support the two sides of the engine to convey the engine, and the workpiece positioning device is between the first conveying platform and the second conveying platform to facilitate lifting the engine, and the stop member can adapt to the movement of the engine in a single direction, so that it does not interfere with the engine when the conveying device transports the engine, but prevents the engine from moving backward, and the block member prevents the engine from continuing to move forward when the engine reaches above the workpiece positioning device. Through the action of the stop member and the block member, the positioning member can be accurately connected to the engine.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The detection component is used to detect the installation of the valve lock plate and the conical valve spring by reading the air pressure value. The naked eye inspection is not required, which improves the accuracy of the detection and avoids misjudgment.

[0020] The detection device uses a mechanical drive to drive the detection component to detect the installation status of the valve lock plate and the conical valve spring. There is no need for manual hand-held detection components to perform detection, and the movement of the detection rod can be more standardized.

[0021] The detection system realizes automatic delivery and automatic detection of the engine, improves detection efficiency, and does not require human intervention, avoids errors caused by manual operation, and further improves detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of a detection assembly for a valve locking plate and a valve spring of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of a detection assembly for a valve lock plate and a valve spring of the present invention;

[0024] Figure 3 It is a schematic diagram of a detection state of a detection assembly for a valve lock plate and a valve spring according to the present invention;

[0025] Figure 4 It is a schematic diagram of another detection state of a detection assembly for a valve lock plate and a valve spring;

[0026] Figure 5 It is a perspective view of a detection device for installing a valve locking plate and a conical valve spring according to the present invention;

[0027] Figure 6 It is a structural schematic diagram of the X-axis moving component and the detection component of the present invention;

[0028] Figure 7 1 is a top-angled schematic diagram of the X-axis moving assembly of the present invention;

[0029] Figure 8 is a perspective view of a slider of the present invention;

[0030] Figure 9 It is a perspective view of a detection system for installing a valve locking plate and a conical valve spring according to the present invention;

[0031] Figure 10 is a perspective view of the platform, conveying device and workpiece positioning device of the present invention;

[0032] Figure 11 is a perspective view of the stand and workpiece positioning device of the present invention;

[0033] Figure 12 yes Figure 11 A partial enlarged view of position A.

[0034] In the picture:

[0035] 100 - Detection rod; 110 - Detection chamber; 120 - Limiting part; 130 - Abutment part; 200 - Blocking member; 300 - Fixing member; 310 - Sliding chamber; 400 - Elastic member; 500 - Guide ring; 510 - Accommodating groove; 600 - Frame; 700 - Three-axis moving platform; 710 - Y-axis moving assembly; 720 - Z-axis moving assembly; 730 - X-axis moving assembly; 731 - X-axis fixing plate; 7311 - Second hollow part ;732-slide rail;733-slider;7331-first hollow part;734-linear driving member;735-connecting member;800-stand;810-conveyance device;820-blocking member;811-first conveyor platform;812-second conveyor platform;900-workpiece positioning device;910-lifting driving member;920-lifting platform;930-swinging platform;931-stop member;940-rotational driving member;950-positioning member. DETAILED DESCRIPTION

[0036] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0037] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0038] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0039] Example 1

[0040] like Figure 1-2The figure shows an embodiment of a detection assembly for a valve lock plate and a valve spring, comprising a detection rod 100, a blocking member 200, a fixing member 300 and an elastic member 400. The detection rod 100 is hollow, with one end being an air supply end and the other end being a detection end. The air supply end is used to connect to an external air supply device. The detection end is provided with a mounting cavity. The blocking member 200 is disposed in the mounting cavity and forms a detection cavity 110 with the inner wall of the detection rod 100. The detection cavity 110 is used to accommodate the valve lock plate. The distal end of the detection end of the detection rod 100 is used to abut against the end with a larger diameter of the conical valve spring. The fixing member 300 is provided with a sliding cavity 310 that passes through the fixing member 300, and the detection rod 100 is provided with a limiting portion 120 and an abutting portion 130; the detection rod 100 is slidably connected to the fixing member 300 and the limiting portion 120 is located in the sliding cavity 310, and the limiting portion 120 is used to limit the detection rod 100 from separating from the fixing member 300; the elastic member 400 is installed on the outer wall of the detection rod 100, and is located between the fixing member 300 and the abutting portion 130; the elastic force direction of the elastic member 400 is consistent with the axial direction of the detection rod 100.

[0041] The blocking member 200 can be a part of the detection rod 100, integrally formed with the detection rod 100, or a separate component of the detection rod 100, secured within the mounting cavity of the detection rod 100. In the case of a separate mounting method, the material of the blocking member 200 can be modified as needed, such as rubber with a cushioning effect. The blocking member 200 is provided with a through-hole that communicates with the internal cavity of the detection rod 100, allowing airflow to pass through.

[0042] In this embodiment, a guide ring 500 is mounted on the detection rod 100 , and the guide ring 500 is provided with a receiving groove 510 ; one end of the elastic member 400 extends into the receiving groove 510 and abuts against the bottom of the receiving groove 510 , and the other end abuts against the abutting portion 130 .

[0043] The working principle or workflow of the present invention is as follows: When performing the installation inspection of the valve lock plate and the conical valve spring, hold the fixing member 300 and insert the detection end of the detection rod 100 into the valve lock plate of the engine. If the conical valve spring is installed correctly, the maximum outer diameter of the smaller end of the conical valve spring is smaller than the outer diameter of the valve lock plate. Figure 3As shown, the valve lock plate 10 can be extended into the detection cavity 110 and abut against the sealing member 200 to close the air flow channel between the detection rod 100 and the sealing member 200, while also compressing the elastic member 400, so that the valve lock plate 10 is subjected to a relatively slight impact force. At this time, the valve lock plate 10 will block the detection rod 100. Therefore, when air is supplied to the detection rod 100, the air pressure detected by the air supply device will rise. If the valve lock plate 10 is installed upside down, pressed on one side, or not pressed into place, when the detection rod 100 is inserted into the valve lock plate 10, the valve lock plate will become loose under the action of the impact force, and then air leakage will occur under the action of external air pressure. The air pressure detected by the air supply device will not rise or will not reach the target value, so that it can be judged whether the valve lock plate is installed properly. If the conical valve spring 11 is installed upside down, the minimum outer diameter of the larger diameter end of the conical valve spring 11 is larger than the valve lock plate, such as Figure 4 As shown, the conical valve spring 11 will abut against the end of the detection end of the detection rod 100, causing the valve lock plate 10 to be unable to extend into the detection chamber 110, which will also cause the air pressure detected by the air supply device to not rise. In summary, if the external air supply device cannot detect the air pressure rising to a certain target value during the detection of the detection chamber 110 set by the detection rod 100, it means that the valve lock plate press-fitting process is incorrect and the conical valve spring is installed upside down. The above-mentioned detection component can be connected to an external power structure, such as a mobile platform or a robot, to drive the detection rod 100 to be inserted into the engine's valve lock plate for testing. It can also be manually inserted into the engine's valve lock plate for testing. If it is a manual handheld test, it only needs to confirm the pressure value to confirm whether the valve lock plate and the conical valve spring are installed correctly, without the need for visual inspection.

[0044] The beneficial effects of this embodiment are as follows: the detection component is used to detect the installation of the valve lock plate and the conical valve spring by reading the air pressure value, without the need for visual inspection by staff, thereby improving the accuracy of the detection and avoiding misjudgment.

[0045] Example 2

[0046] Figure 5-8 The figure shows an embodiment of a detection device for installing a valve lock plate and a conical valve spring, including a frame 600, a three-axis movable platform 700 mounted on the frame 600, a detection component of Example 1 mounted on the output end of the three-axis movable platform 700, and an air supply device for supplying air to the detection component.

[0047] The three-axis mobile platform 700 includes a Y-axis mobile assembly 710 mounted on the frame 600, a Z-axis mobile assembly 720 mounted on the output end of the Y-axis mobile assembly 710, and an X-axis mobile assembly 730 mounted on the output end of the Z-axis mobile assembly 720. The fixing member 300 is connected to the output end of the X-axis mobile assembly 730. The X-axis mobile assembly 730 includes an X-axis fixed plate 731, a slide rail 732 mounted on the X-axis fixed plate 731, a plurality of sliders 733 mounted on and slidably connected to the slide rail 732, and a linear drive member 734 that drives the slider 733 to slide along the slide rail 732. The linear drive member 734 is connected to the slider 733 via a connecting member 735. The number of detection components is the same as the number of sliders 733 and is fixedly connected to the slider 733 via the fixing member 300.

[0048] In this embodiment, if Figure 8 As shown, each slider 733 is provided with a first hollow portion 7331. Figure 7 As shown, the X-axis fixing plate 731 is provided with a second hollow portion 7311 corresponding to each first hollow portion 7331; the conduit of the air supply device passes through the second hollow portion 7311 and the first hollow portion 7331 and is connected to the air supply end of the detection rod 100. The provision of the first hollow portion 7331 and the second hollow portion 7311 can facilitate the installation of the conduit of the air supply device. There is no need to reserve an installation position for the conduit between the slider 733 and the fixing member 300. At the same time, there will be no obstructions above the conduit. When the detection rod 100 compresses the elastic member 400 to move, the conduit will not be squeezed. It is also easier to operate during maintenance and inspection.

[0049] In this embodiment, the Y-axis moving component 710 includes a slide module installed on the frame 600 and a Y-axis mounting platform installed on the slide module. The Z-axis moving component 720 includes a drive component and a guide rod installed on the Y-axis mounting platform. The X-axis fixed plate 731 is installed at the output end of the linear drive component 734. The drive component can be a cylinder or a motor group.

[0050] The working principle of this embodiment is as follows: Figure 6 As shown in the figure, there are four sliders 733 and four corresponding detection components, which are respectively installed on the sliders 733. In order to be able to drive the sliders 733 to move without interference, the linear driving members 734 have two linear driving members 734 installed on the same surface as the sliders 733, and the other two linear driving members 734 are installed on the other surface. Through the action of the connecting member 735, the linear driving member 734 can smoothly drive the slider 733 to move on the slide rail 732 even if it is located at different positions. At the same time, a through portion for the connecting member 735 to pass through is provided on the X-axis fixing plate, so that the connecting member can connect the sliders 733 and the linear driving member 734 located on two different surfaces.

[0051] When the engine is placed on the tooling, the position of the valve lock plate will also deviate depending on the model of the engine. Therefore, according to the slider 733 corresponding to the model of the engine, the three-axis mobile platform 700 first moves the Y-axis moving component 710, and then moves the slider 733 closest to the valve lock plate, allowing the linear drive component 734 corresponding to the slider 733 to move the detection rod 100 to the top of the valve lock plate. The Z-axis moving component 720 drives the detection rod 100 to move downward so that the detection rod 100 is inserted into the valve lock plate, and then the air supply device starts to supply air and detect the air pressure. After the detection is completed, the various components are reset. The detection method is the same as in Example 1 and will not be described here. The method of moving the slider 733 closest to the valve lock plate can reduce the stroke of the slider 733 and reduce the motion interference easily caused by the external conduit of the detection rod 100.

[0052] The beneficial effects of this embodiment are as follows: the detection device uses a mechanical drive to drive the detection component to detect the installation status of the valve lock plate and the conical valve spring, without the need for manual hand-held detection components for detection, and the movement of the detection rod 100 can be more standardized.

[0053] Example 3

[0054] like Figure 9-11 The figure shows an embodiment of a detection system for installing a valve lock plate and a conical valve spring, including the detection device of Example 2, a stand 800 located below a three-axis mobile platform 700, a workpiece positioning device 900 installed on the stand 800, and a conveying device 810 for conveying the workpiece to the workpiece positioning device 900.

[0055] Specifically, the workpiece positioning device 900 includes a lifting drive 910 connected to the stage 800, a lifting platform 920 connected to the lifting drive 910, a swinging platform 930 installed on the lifting platform 920, and a rotating drive 940 that drives the swinging platform 930 to rotate; the swinging platform 930 is provided with a plurality of positioning members 950 for positioning the workpiece. The conveying device 810 is installed on the stage 800, and the conveying device 810 includes a first conveying platform 811 and a second conveying platform 812 arranged in parallel and used to convey the workpiece, with a space formed between the first conveying platform 811 and the second conveying platform 812; the workpiece positioning device 900 is located between the first conveying platform 811 and the second conveying platform 812; the stage 800 is provided with a liftable blocking member 820 at the output end of the conveying device 810; the swinging platform 930 is provided with a stop member 931 at the input end of the conveying device 810.

[0056] The first conveying platform 811 and the second conveying platform 812 can be respectively a chain-type, belt-type or roller 824-type conveying mechanism. The lifting drive member can be a cylinder, and the rotation drive member can be a servo motor or a steering gear.

[0057] The operating principle or workflow of this embodiment is as follows: The workpiece engine is transported to the top of the workpiece positioning device 900 via the conveyor device 810. The stopper 820 prevents the engine from moving forward, while the stopper 931 prevents the engine from moving backward. Once the engine is positioned, the lifting drive 910 drives the lifting platform 920, connecting the positioning member 950 on the swing platform 930 to the engine and raising it. Once the engine is released from the lifting platform 920, the rotating member drives the swing platform 930 to rotate a certain angle, causing the valve locking plate to face vertically upward, thereby facilitating the connection between the detection rod 100 and the valve locking plate. The detection device initiates the test. Upon completion of the test, if the pressure value meets the standard, the three-axis mobile platform 700 resets, the workpiece positioning device 900 resets, and the engine returns to the conveyor device 810. The stopper 820 lowers, and the conveyor device 810 transports the engine to the next workstation. If the test fails, the three-axis mobile platform 700 resets, an alarm signal is issued, or the engine is transported to the defective workstation.

[0058] The blocking member 820 can be connected to the output end of the cylinder or motor assembly to achieve the function of rising and falling. When rising, it can limit the forward movement of the engine, and when falling, it can allow the conveying device 810 to convey the engine forward. Figure 12 As shown, the blocking member 820 includes a base portion 821 connected to a cylinder, a limiting portion 822 rotatably connected to the base portion 821, and a pneumatic spring 823 connecting the base portion 821 and the limiting portion 822. The limiting portion 822 is provided with a roller 824 that can abut and roll against the engine. The pneumatic spring 823 can produce a certain buffering effect when the engine contacts the roller 824, and the roller 824 can reduce the friction when the engine rises and falls.

[0059] In this embodiment, the stopper 931 is designed to adapt to the engine's performance. It includes a fixed rod and a rotating member connected to the fixed rod. When the engine is moving forward, the rotating member contacts the engine's conformal position, causing it to rotate, allowing the engine to move forward. However, when the engine is moving backward, the rotating member does not rotate, preventing the engine from moving backward. The stopper can also be a structure that can be raised and lowered, such as a blocking member. When the engine releases the blocking member, the stopper rises to prevent the engine from moving backward.

[0060] Beneficial effects of this embodiment: The detection system realizes automatic delivery and detection of the engine, improves detection efficiency, and does not require human intervention, avoids errors caused by manual operation, and further improves detection accuracy.

[0061] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A detection assembly for a valve lock plate and a valve spring, characterized in that: The invention comprises a detection rod (100) and a blocking piece (200); the detection rod (100) is hollow, one end of which is an air supply end and the other end of which is a detection end; the air supply end is used to connect to an external air supply device; the detection end is provided with a mounting cavity; the blocking piece (200) is arranged in the mounting cavity and forms a detection cavity (110) with the inner wall of the detection rod (100); the detection cavity (110) is used to accommodate a valve locking plate; the distal end of the detection end of the detection rod (100) is used to abut against the end of a conical valve spring with a larger diameter.

2. A detection assembly for a valve lock plate and a valve spring according to claim 1, characterized in that: The invention also includes a fixing member (300) and an elastic member (400); the fixing member (300) is provided with a sliding cavity (310) penetrating the fixing member (300); the detection rod (100) is provided with a limiting portion (120) and an abutting portion (130); the detection rod (100) is slidably connected to the fixing member (300) and the limiting portion (120) is located in the sliding cavity (310), and the limiting portion (120) is used to limit the detection rod (100) from being separated from the fixing member (300); the elastic member (400) is installed on the outer wall of the detection rod (100) and is located between the fixing member (300) and the abutting portion (130); the elastic force direction of the elastic member (400) is consistent with the axial direction of the detection rod (100).

3. A detection assembly for a valve lock plate and a valve spring according to claim 1, characterized in that: The detection rod (100) is provided with a guide ring (500), and the guide ring (500) is provided with a receiving groove (510); one end of the elastic member (400) extends into the receiving groove (510) and abuts against the bottom of the receiving groove (510), and the other end abuts against the abutting portion (130).

4. A detection device for installing a valve lock plate and a conical valve spring according to claim 3, characterized in that: The invention comprises a frame (600), a three-axis movable platform (700) mounted on the frame (600), a detection component according to claim 2 or 3 on which an output end of the three-axis movable platform (700) is mounted, and an air supply device for supplying air to the detection component.

5. A detection device for installing a valve lock plate and a conical valve spring according to claim 4, characterized in that: The three-axis moving platform (700) comprises a Y-axis moving assembly (710) mounted on a frame (600), a Z-axis moving assembly (720) mounted on an output end of the Y-axis moving assembly (710), and an X-axis moving assembly (730) mounted on an output end of the Z-axis moving assembly (720), and the fixing member (300) is connected to the output end of the X-axis moving assembly (730).

6. A detection device for installing a valve lock plate and a conical valve spring according to claim 5, characterized in that: The X-axis moving assembly (730) includes an X-axis fixed plate (731), a slide rail (732) installed on the X-axis fixed plate (731), a plurality of sliders (733) installed on the slide rail (732) and slidably connected to the slide rail (732), and a linear driving member (734) driving the sliders (733) to slide along the slide rail (732); the linear driving member (734) is connected to the slider (733) via a connecting member (735); the number of the detection assemblies is consistent with the number of the sliders (733) and is fixedly connected to the slider (733) via the fixing member (300).

7. A detection device for installing a valve lock plate and a conical valve spring according to claim 6, characterized in that: Each of the sliders (733) is provided with a first hollow portion (7331), and each of the X-axis fixing plates (731) is provided with a second hollow portion (7311) corresponding one-to-one to each of the first hollow portions (7331); a conduit of the air supply device passes through the second hollow portion (7311) and the first hollow portion (7331) and is connected to the air supply end of the detection rod (100).

8. A detection system for the installation of valve lock plate and conical valve spring, characterized in that: It comprises the detection device according to any one of claims 5 to 8, a stand (800) located below the three-axis movable platform (700), a workpiece positioning device (900) installed on the stand (800), and a conveying device (810) for conveying the workpiece to the workpiece positioning device (900).

9. A detection system for the installation of valve lock plate and conical valve spring, characterized in that: The workpiece positioning device (900) comprises a lifting drive member (910) connected to the platform (800), a lifting platform (920) connected to the lifting drive member (910), a swing platform (930) installed on the lifting platform (920), and a rotating drive member (940) for driving the swing platform (930) to rotate; the swing platform (930) is provided with a plurality of positioning members (950) for positioning the workpiece.

10. A detection system for the installation of valve lock plate and conical valve spring, characterized in that: The conveying device (810) is installed on the platform (800), and the conveying device (810) includes a first conveying platform (811) and a second conveying platform (812) arranged in parallel and used to convey workpieces, and a space is formed between the first conveying platform (811) and the second conveying platform (812); the workpiece positioning device (900) is located between the first conveying platform (811) and the second conveying platform (812); the platform (800) is located at the output end of the conveying device (810) and is provided with a liftable blocking member (820); the swing platform (930) is located at the input end of the conveying device (810) and is provided with a stop member (931).

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